gstreamer: amlv4l2dec [1/1]
PD#SWPL-79817
Problem:
new git for amlv4l2dec
Solution:
(detail info)
Verify:
(detail info)
Change-Id: I9b84c97bc6fd27ea269bf4c2cc7bcf51b6be8502
Signed-off-by: xuesong.jiang <xuesong.jiang@amlogic.com>
diff --git a/src/gstamlv4l2object.c b/src/gstamlv4l2object.c
new file mode 100644
index 0000000..40c4c72
--- /dev/null
+++ b/src/gstamlv4l2object.c
@@ -0,0 +1,5190 @@
+/* GStreamer
+ * Copyright (C) 2022 <xuesong.jiang@amlogic.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
+ * Boston, MA 02110-1335, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+
+#ifdef HAVE_GUDEV
+#include <gudev/gudev.h>
+#endif
+
+#include "ext/videodev2.h"
+#include "gstamlv4l2object.h"
+
+#include "gst/gst-i18n-plugin.h"
+
+#include <gst/video/video.h>
+#include <gst/allocators/gstdmabuf.h>
+
+GST_DEBUG_CATEGORY_EXTERN(aml_v4l2_debug);
+#define GST_CAT_DEFAULT aml_v4l2_debug
+
+#define DEFAULT_PROP_DEVICE_NAME NULL
+#define DEFAULT_PROP_DEVICE_FD -1
+#define DEFAULT_PROP_FLAGS 0
+#define DEFAULT_PROP_TV_NORM 0
+#define DEFAULT_PROP_IO_MODE GST_V4L2_IO_AUTO
+
+#define ENCODED_BUFFER_SIZE (2 * 1024 * 1024)
+#define DEFAULT_EXTRA_CAPTURE_BUF_SIZE 3
+
+enum
+{
+ PROP_0,
+ V4L2_STD_OBJECT_PROPS,
+};
+
+/*
+ * common format / caps utilities:
+ */
+typedef enum
+{
+ GST_V4L2_RAW = 1 << 0,
+ GST_V4L2_CODEC = 1 << 1,
+ GST_V4L2_TRANSPORT = 1 << 2,
+ GST_V4L2_NO_PARSE = 1 << 3,
+ GST_V4L2_ALL = 0xffff
+} GstAmlV4L2FormatFlags;
+
+typedef struct
+{
+ guint32 format;
+ gboolean dimensions;
+ GstAmlV4L2FormatFlags flags;
+} GstAmlV4L2FormatDesc;
+
+static const GstAmlV4L2FormatDesc gst_aml_v4l2_formats[] = {
+ /* RGB formats */
+ {V4L2_PIX_FMT_RGB332, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_ARGB555, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_XRGB555, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_ARGB555X, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_XRGB555X, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_RGB565, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_RGB565X, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_BGR666, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_BGR24, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_RGB24, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_ABGR32, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_XBGR32, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_ARGB32, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_XRGB32, TRUE, GST_V4L2_RAW},
+
+ /* Deprecated Packed RGB Image Formats (alpha ambiguity) */
+ {V4L2_PIX_FMT_RGB444, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_RGB555, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_RGB555X, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_BGR32, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_RGB32, TRUE, GST_V4L2_RAW},
+
+ /* Grey formats */
+ {V4L2_PIX_FMT_GREY, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_Y4, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_Y6, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_Y10, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_Y12, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_Y16, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_Y16_BE, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_Y10BPACK, TRUE, GST_V4L2_RAW},
+
+ /* Palette formats */
+ {V4L2_PIX_FMT_PAL8, TRUE, GST_V4L2_RAW},
+
+ /* Chrominance formats */
+ {V4L2_PIX_FMT_UV8, TRUE, GST_V4L2_RAW},
+
+ /* Luminance+Chrominance formats */
+ {V4L2_PIX_FMT_YVU410, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YVU420, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YVU420M, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUYV, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YYUV, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YVYU, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_UYVY, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_VYUY, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUV422P, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUV411P, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_Y41P, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUV444, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUV555, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUV565, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUV32, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUV410, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUV420, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_YUV420M, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_HI240, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_HM12, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_M420, TRUE, GST_V4L2_RAW},
+
+ /* two planes -- one Y, one Cr + Cb interleaved */
+ {V4L2_PIX_FMT_NV12, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV12M, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV12MT, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV12MT_16X16, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV21, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV21M, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV16, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV16M, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV61, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV61M, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV24, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_NV42, TRUE, GST_V4L2_RAW},
+
+ /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
+ {V4L2_PIX_FMT_SBGGR8, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_SGBRG8, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_SGRBG8, TRUE, GST_V4L2_RAW},
+ {V4L2_PIX_FMT_SRGGB8, TRUE, GST_V4L2_RAW},
+
+ /* compressed formats */
+ {V4L2_PIX_FMT_MJPEG, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_JPEG, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_PJPG, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_DV, FALSE, GST_V4L2_TRANSPORT},
+ {V4L2_PIX_FMT_MPEG, FALSE, GST_V4L2_TRANSPORT},
+ {V4L2_PIX_FMT_FWHT, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_H264, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_H264_NO_SC, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_H264_MVC, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_HEVC, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_H263, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_MPEG1, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_MPEG2, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_MPEG4, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_XVID, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_VC1_ANNEX_G, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_VC1_ANNEX_L, FALSE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_VP8, FALSE, GST_V4L2_CODEC | GST_V4L2_NO_PARSE},
+ {V4L2_PIX_FMT_VP9, FALSE, GST_V4L2_CODEC | GST_V4L2_NO_PARSE},
+ {V4L2_PIX_FMT_AV1, FALSE, GST_V4L2_CODEC | GST_V4L2_NO_PARSE},
+
+ /* Vendor-specific formats */
+ {V4L2_PIX_FMT_WNVA, TRUE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_SN9C10X, TRUE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_PWC1, TRUE, GST_V4L2_CODEC},
+ {V4L2_PIX_FMT_PWC2, TRUE, GST_V4L2_CODEC},
+};
+
+#define GST_AML_V4L2_FORMAT_COUNT (G_N_ELEMENTS(gst_aml_v4l2_formats))
+
+static GSList *gst_aml_v4l2_object_get_format_list(GstAmlV4l2Object *v4l2object);
+
+#define GST_TYPE_AML_V4L2_DEVICE_FLAGS (gst_aml_v4l2_device_get_type())
+static GType
+gst_aml_v4l2_device_get_type(void)
+{
+ static GType v4l2_device_type = 0;
+
+ if (v4l2_device_type == 0)
+ {
+ static const GFlagsValue values[] = {
+ {V4L2_CAP_VIDEO_CAPTURE, "Device supports video capture", "capture"},
+ {V4L2_CAP_VIDEO_OUTPUT, "Device supports video playback", "output"},
+ {V4L2_CAP_VIDEO_OVERLAY, "Device supports video overlay", "overlay"},
+
+ {V4L2_CAP_VBI_CAPTURE, "Device supports the VBI capture", "vbi-capture"},
+ {V4L2_CAP_VBI_OUTPUT, "Device supports the VBI output", "vbi-output"},
+
+ {V4L2_CAP_TUNER, "Device has a tuner or modulator", "tuner"},
+ {V4L2_CAP_AUDIO, "Device has audio inputs or outputs", "audio"},
+
+ {0, NULL, NULL}};
+
+ v4l2_device_type =
+ g_flags_register_static("GstAmlV4l2DeviceTypeFlags", values);
+ }
+
+ return v4l2_device_type;
+}
+
+GType gst_aml_v4l2_io_mode_get_type(void)
+{
+ static GType v4l2_io_mode = 0;
+
+ if (!v4l2_io_mode)
+ {
+ static const GEnumValue io_modes[] = {
+ {GST_V4L2_IO_AUTO, "GST_V4L2_IO_AUTO", "auto"},
+ {GST_V4L2_IO_RW, "GST_V4L2_IO_RW", "rw"},
+ {GST_V4L2_IO_MMAP, "GST_V4L2_IO_MMAP", "mmap"},
+ {GST_V4L2_IO_USERPTR, "GST_V4L2_IO_USERPTR", "userptr"},
+ {GST_V4L2_IO_DMABUF, "GST_V4L2_IO_DMABUF", "dmabuf"},
+ {GST_V4L2_IO_DMABUF_IMPORT, "GST_V4L2_IO_DMABUF_IMPORT",
+ "dmabuf-import"},
+
+ {0, NULL, NULL}};
+ v4l2_io_mode = g_enum_register_static("GstAmlV4l2IOMode", io_modes);
+ }
+ return v4l2_io_mode;
+}
+
+void gst_aml_v4l2_object_install_properties_helper(GObjectClass *gobject_class,
+ const char *default_device)
+{
+ g_object_class_install_property(gobject_class, PROP_DEVICE,
+ g_param_spec_string("device", "Device", "Device location",
+ default_device, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property(gobject_class, PROP_DEVICE_NAME,
+ g_param_spec_string("device-name", "Device name",
+ "Name of the device", DEFAULT_PROP_DEVICE_NAME,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property(gobject_class, PROP_DEVICE_FD,
+ g_param_spec_int("device-fd", "File descriptor",
+ "File descriptor of the device", -1, G_MAXINT, DEFAULT_PROP_DEVICE_FD,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property(gobject_class, PROP_FLAGS,
+ g_param_spec_flags("flags", "Flags", "Device type flags",
+ GST_TYPE_AML_V4L2_DEVICE_FLAGS, DEFAULT_PROP_FLAGS,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstV4l2Src:brightness:
+ *
+ * Picture brightness, or more precisely, the black level
+ */
+ g_object_class_install_property(gobject_class, PROP_BRIGHTNESS,
+ g_param_spec_int("brightness", "Brightness",
+ "Picture brightness, or more precisely, the black level", G_MININT,
+ G_MAXINT, 0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
+ /**
+ * GstV4l2Src:contrast:
+ *
+ * Picture contrast or luma gain
+ */
+ g_object_class_install_property(gobject_class, PROP_CONTRAST,
+ g_param_spec_int("contrast", "Contrast",
+ "Picture contrast or luma gain", G_MININT,
+ G_MAXINT, 0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
+ /**
+ * GstV4l2Src:saturation:
+ *
+ * Picture color saturation or chroma gain
+ */
+ g_object_class_install_property(gobject_class, PROP_SATURATION,
+ g_param_spec_int("saturation", "Saturation",
+ "Picture color saturation or chroma gain", G_MININT,
+ G_MAXINT, 0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
+ /**
+ * GstV4l2Src:hue:
+ *
+ * Hue or color balance
+ */
+ g_object_class_install_property(gobject_class, PROP_HUE,
+ g_param_spec_int("hue", "Hue",
+ "Hue or color balance", G_MININT,
+ G_MAXINT, 0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
+
+ /**
+ * GstV4l2Src:io-mode:
+ *
+ * IO Mode
+ */
+ g_object_class_install_property(gobject_class, PROP_IO_MODE,
+ g_param_spec_enum("io-mode", "IO mode",
+ "I/O mode",
+ GST_TYPE_AML_V4L2_IO_MODE, DEFAULT_PROP_IO_MODE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstV4l2Src:extra-controls:
+ *
+ * Additional v4l2 controls for the device. The controls are identified
+ * by the control name (lowercase with '_' for any non-alphanumeric
+ * characters).
+ *
+ * Since: 1.2
+ */
+ g_object_class_install_property(gobject_class, PROP_EXTRA_CONTROLS,
+ g_param_spec_boxed("extra-controls", "Extra Controls",
+ "Extra v4l2 controls (CIDs) for the device",
+ GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstV4l2Src:pixel-aspect-ratio:
+ *
+ * The pixel aspect ratio of the device. This overwrites the pixel aspect
+ * ratio queried from the device.
+ *
+ * Since: 1.2
+ */
+ g_object_class_install_property(gobject_class, PROP_PIXEL_ASPECT_RATIO,
+ g_param_spec_string("pixel-aspect-ratio", "Pixel Aspect Ratio",
+ "Overwrite the pixel aspect ratio of the device", "1/1",
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstV4l2Src:force-aspect-ratio:
+ *
+ * When enabled, the pixel aspect ratio queried from the device or set
+ * with the pixel-aspect-ratio property will be enforced.
+ *
+ * Since: 1.2
+ */
+ g_object_class_install_property(gobject_class, PROP_FORCE_ASPECT_RATIO,
+ g_param_spec_boolean("force-aspect-ratio", "Force aspect ratio",
+ "When enabled, the pixel aspect ratio will be enforced", TRUE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+}
+
+void gst_aml_v4l2_object_install_m2m_properties_helper(GObjectClass *gobject_class)
+{
+ g_object_class_install_property(gobject_class, PROP_DEVICE,
+ g_param_spec_string("device", "Device", "Device location",
+ NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property(gobject_class, PROP_DEVICE_NAME,
+ g_param_spec_string("device-name", "Device name",
+ "Name of the device", DEFAULT_PROP_DEVICE_NAME,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property(gobject_class, PROP_DEVICE_FD,
+ g_param_spec_int("device-fd", "File descriptor",
+ "File descriptor of the device", -1, G_MAXINT, DEFAULT_PROP_DEVICE_FD,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property(gobject_class, PROP_OUTPUT_IO_MODE,
+ g_param_spec_enum("output-io-mode", "Output IO mode",
+ "Output side I/O mode (matches sink pad)",
+ GST_TYPE_AML_V4L2_IO_MODE, DEFAULT_PROP_IO_MODE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property(gobject_class, PROP_CAPTURE_IO_MODE,
+ g_param_spec_enum("capture-io-mode", "Capture IO mode",
+ "Capture I/O mode (matches src pad)",
+ GST_TYPE_AML_V4L2_IO_MODE, DEFAULT_PROP_IO_MODE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property(gobject_class, PROP_EXTRA_CONTROLS,
+ g_param_spec_boxed("extra-controls", "Extra Controls",
+ "Extra v4l2 controls (CIDs) for the device",
+ GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property(gobject_class, PROP_DUMP_FRAME_LOCATION,
+ g_param_spec_string("dump-frame-location", "dump frame location",
+ "Location of the file to write decoder frames", NULL,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+}
+
+/* Support for 32bit off_t, this wrapper is casting off_t to gint64 */
+#ifdef HAVE_LIBV4L2
+#if SIZEOF_OFF_T < 8
+
+static gpointer
+v4l2_mmap_wrapper(gpointer start, gsize length, gint prot, gint flags, gint fd,
+ off_t offset)
+{
+ return v4l2_mmap(start, length, prot, flags, fd, (gint64)offset);
+}
+
+#define v4l2_mmap v4l2_mmap_wrapper
+
+#endif /* SIZEOF_OFF_T < 8 */
+#endif /* HAVE_LIBV4L2 */
+
+GstAmlV4l2Object *
+gst_aml_v4l2_object_new(GstElement *element,
+ GstObject *debug_object,
+ enum v4l2_buf_type type,
+ const char *default_device,
+ GstAmlV4l2GetInOutFunction get_in_out_func,
+ GstAmlV4l2SetInOutFunction set_in_out_func,
+ GstAmlV4l2UpdateFpsFunction update_fps_func)
+{
+ GstAmlV4l2Object *v4l2object;
+
+ /*
+ * some default values
+ */
+ v4l2object = g_new0(GstAmlV4l2Object, 1);
+
+ if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == type || V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE == type))
+ {
+ const char *default_mode = getenv("GST_DEFAULT_V4L2_BUF_MODE");
+ GST_DEBUG("amlmodbuf GST_AML_DEFAULT_V4L2_BUF_MODE:%s", default_mode);
+ if (default_mode)
+ {
+ if (strcmp(default_mode, "DMA_BUF_IMPORT") == 0)
+ v4l2object->req_mode = GST_V4L2_IO_DMABUF_IMPORT;
+ else if (strcmp(default_mode, "DMA_BUF") == 0)
+ v4l2object->req_mode = GST_V4L2_IO_DMABUF;
+ GST_DEBUG("amlmodbuf set default buf default_mode:%d", v4l2object->req_mode);
+ }
+ }
+
+ v4l2object->type = type;
+ v4l2object->formats = NULL;
+
+ v4l2object->element = element;
+ v4l2object->dbg_obj = debug_object;
+ v4l2object->get_in_out_func = get_in_out_func;
+ v4l2object->set_in_out_func = set_in_out_func;
+ v4l2object->update_fps_func = update_fps_func;
+
+ v4l2object->video_fd = -1;
+ v4l2object->active = FALSE;
+ v4l2object->videodev = g_strdup(default_device);
+
+ v4l2object->norms = NULL;
+ v4l2object->channels = NULL;
+ v4l2object->colors = NULL;
+
+ v4l2object->keep_aspect = TRUE;
+
+ v4l2object->n_v4l2_planes = 0;
+
+ v4l2object->no_initial_format = FALSE;
+
+ /* We now disable libv4l2 by default, but have an env to enable it. */
+#ifdef HAVE_LIBV4L2
+ if (g_getenv("GST_V4L2_USE_LIBV4L2"))
+ {
+ v4l2object->fd_open = v4l2_fd_open;
+ v4l2object->close = v4l2_close;
+ v4l2object->dup = v4l2_dup;
+ v4l2object->ioctl = v4l2_ioctl;
+ v4l2object->read = v4l2_read;
+ v4l2object->mmap = v4l2_mmap;
+ v4l2object->munmap = v4l2_munmap;
+ }
+ else
+#endif
+ {
+ v4l2object->fd_open = NULL;
+ v4l2object->close = close;
+ v4l2object->dup = dup;
+ v4l2object->ioctl = ioctl;
+ v4l2object->read = read;
+ v4l2object->mmap = mmap;
+ v4l2object->munmap = munmap;
+ }
+ v4l2object->poll = gst_poll_new(TRUE);
+ v4l2object->can_wait_event = FALSE;
+ v4l2object->can_poll_device = TRUE;
+ v4l2object->tvin_port = -1;
+
+ v4l2object->dumpframefile = NULL;
+
+ return v4l2object;
+}
+
+static gboolean gst_aml_v4l2_object_clear_format_list(GstAmlV4l2Object *v4l2object);
+
+void gst_aml_v4l2_object_destroy(GstAmlV4l2Object *v4l2object)
+{
+ g_return_if_fail(v4l2object != NULL);
+
+ g_free(v4l2object->videodev);
+
+ g_free(v4l2object->channel);
+
+ if (v4l2object->formats)
+ {
+ gst_aml_v4l2_object_clear_format_list(v4l2object);
+ }
+
+ if (v4l2object->probed_caps)
+ {
+ gst_caps_unref(v4l2object->probed_caps);
+ }
+
+ if (v4l2object->extra_controls)
+ {
+ gst_structure_free(v4l2object->extra_controls);
+ }
+
+ gst_poll_free(v4l2object->poll);
+
+ g_free(v4l2object->dumpframefile);
+
+ g_free(v4l2object);
+}
+
+static gboolean
+gst_aml_v4l2_object_clear_format_list(GstAmlV4l2Object *v4l2object)
+{
+ g_slist_foreach(v4l2object->formats, (GFunc)g_free, NULL);
+ g_slist_free(v4l2object->formats);
+ v4l2object->formats = NULL;
+
+ return TRUE;
+}
+
+static gint
+gst_aml_v4l2_object_prop_to_cid(guint prop_id)
+{
+ gint cid = -1;
+
+ switch (prop_id)
+ {
+ case PROP_BRIGHTNESS:
+ cid = V4L2_CID_BRIGHTNESS;
+ break;
+ case PROP_CONTRAST:
+ cid = V4L2_CID_CONTRAST;
+ break;
+ case PROP_SATURATION:
+ cid = V4L2_CID_SATURATION;
+ break;
+ case PROP_HUE:
+ cid = V4L2_CID_HUE;
+ break;
+ default:
+ GST_WARNING("unmapped property id: %d", prop_id);
+ }
+ return cid;
+}
+
+gboolean
+gst_aml_v4l2_object_set_property_helper(GstAmlV4l2Object *v4l2object,
+ guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+ switch (prop_id)
+ {
+ case PROP_DEVICE:
+ g_free(v4l2object->videodev);
+ v4l2object->videodev = g_value_dup_string(value);
+ break;
+ case PROP_BRIGHTNESS:
+ case PROP_CONTRAST:
+ case PROP_SATURATION:
+ case PROP_HUE:
+ {
+ gint cid = gst_aml_v4l2_object_prop_to_cid(prop_id);
+
+ if (cid != -1)
+ {
+ if (GST_AML_V4L2_IS_OPEN(v4l2object))
+ {
+ gst_aml_v4l2_set_attribute(v4l2object, cid, g_value_get_int(value));
+ }
+ }
+ return TRUE;
+ }
+ break;
+ case PROP_IO_MODE:
+ v4l2object->req_mode = g_value_get_enum(value);
+ break;
+ case PROP_CAPTURE_IO_MODE:
+ g_return_val_if_fail(!V4L2_TYPE_IS_OUTPUT(v4l2object->type), FALSE);
+ v4l2object->req_mode = g_value_get_enum(value);
+ break;
+ case PROP_OUTPUT_IO_MODE:
+ g_return_val_if_fail(V4L2_TYPE_IS_OUTPUT(v4l2object->type), FALSE);
+ v4l2object->req_mode = g_value_get_enum(value);
+ break;
+ case PROP_EXTRA_CONTROLS:
+ {
+ const GstStructure *s = gst_value_get_structure(value);
+
+ if (v4l2object->extra_controls)
+ gst_structure_free(v4l2object->extra_controls);
+
+ v4l2object->extra_controls = s ? gst_structure_copy(s) : NULL;
+ if (GST_AML_V4L2_IS_OPEN(v4l2object))
+ gst_aml_v4l2_set_controls(v4l2object, v4l2object->extra_controls);
+ break;
+ }
+ case PROP_PIXEL_ASPECT_RATIO:
+ if (v4l2object->par)
+ {
+ g_value_unset(v4l2object->par);
+ g_free(v4l2object->par);
+ }
+ v4l2object->par = g_new0(GValue, 1);
+ g_value_init(v4l2object->par, GST_TYPE_FRACTION);
+ if (!g_value_transform(value, v4l2object->par))
+ {
+ g_warning("Could not transform string to aspect ratio");
+ gst_value_set_fraction(v4l2object->par, 1, 1);
+ }
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "set PAR to %d/%d",
+ gst_value_get_fraction_numerator(v4l2object->par),
+ gst_value_get_fraction_denominator(v4l2object->par));
+ break;
+ case PROP_FORCE_ASPECT_RATIO:
+ v4l2object->keep_aspect = g_value_get_boolean(value);
+ break;
+ case PROP_DUMP_FRAME_LOCATION:
+ g_free(v4l2object->dumpframefile);
+ v4l2object->dumpframefile = g_value_dup_string(value);
+ break;
+ default:
+ return FALSE;
+ break;
+ }
+ return TRUE;
+}
+
+gboolean
+gst_aml_v4l2_object_get_property_helper(GstAmlV4l2Object *v4l2object,
+ guint prop_id, GValue *value, GParamSpec *pspec)
+{
+ switch (prop_id)
+ {
+ case PROP_DEVICE:
+ g_value_set_string(value, v4l2object->videodev);
+ break;
+ case PROP_DEVICE_NAME:
+ {
+ const guchar *name = NULL;
+
+ if (GST_AML_V4L2_IS_OPEN(v4l2object))
+ name = v4l2object->vcap.card;
+
+ g_value_set_string(value, (gchar *)name);
+ break;
+ }
+ case PROP_DEVICE_FD:
+ {
+ if (GST_AML_V4L2_IS_OPEN(v4l2object))
+ g_value_set_int(value, v4l2object->video_fd);
+ else
+ g_value_set_int(value, DEFAULT_PROP_DEVICE_FD);
+ break;
+ }
+ case PROP_FLAGS:
+ {
+ guint flags = 0;
+
+ if (GST_AML_V4L2_IS_OPEN(v4l2object))
+ {
+ flags |= v4l2object->device_caps &
+ (V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_VIDEO_OUTPUT |
+ V4L2_CAP_VIDEO_OVERLAY |
+ V4L2_CAP_VBI_CAPTURE |
+ V4L2_CAP_VBI_OUTPUT | V4L2_CAP_TUNER | V4L2_CAP_AUDIO);
+
+ if (v4l2object->device_caps & V4L2_CAP_VIDEO_CAPTURE_MPLANE)
+ flags |= V4L2_CAP_VIDEO_CAPTURE;
+
+ if (v4l2object->device_caps & V4L2_CAP_VIDEO_OUTPUT_MPLANE)
+ flags |= V4L2_CAP_VIDEO_OUTPUT;
+ }
+ g_value_set_flags(value, flags);
+ break;
+ }
+ case PROP_BRIGHTNESS:
+ case PROP_CONTRAST:
+ case PROP_SATURATION:
+ case PROP_HUE:
+ {
+ gint cid = gst_aml_v4l2_object_prop_to_cid(prop_id);
+
+ if (cid != -1)
+ {
+ if (GST_AML_V4L2_IS_OPEN(v4l2object))
+ {
+ gint v;
+ if (gst_aml_v4l2_get_attribute(v4l2object, cid, &v))
+ {
+ g_value_set_int(value, v);
+ }
+ }
+ }
+ return TRUE;
+ }
+ break;
+ case PROP_IO_MODE:
+ g_value_set_enum(value, v4l2object->req_mode);
+ break;
+ case PROP_CAPTURE_IO_MODE:
+ g_return_val_if_fail(!V4L2_TYPE_IS_OUTPUT(v4l2object->type), FALSE);
+ g_value_set_enum(value, v4l2object->req_mode);
+ break;
+ case PROP_OUTPUT_IO_MODE:
+ g_return_val_if_fail(V4L2_TYPE_IS_OUTPUT(v4l2object->type), FALSE);
+ g_value_set_enum(value, v4l2object->req_mode);
+ break;
+ case PROP_EXTRA_CONTROLS:
+ gst_value_set_structure(value, v4l2object->extra_controls);
+ break;
+ case PROP_PIXEL_ASPECT_RATIO:
+ if (v4l2object->par)
+ g_value_transform(v4l2object->par, value);
+ break;
+ case PROP_FORCE_ASPECT_RATIO:
+ g_value_set_boolean(value, v4l2object->keep_aspect);
+ break;
+ case PROP_DUMP_FRAME_LOCATION:
+ g_value_set_string(value, v4l2object->dumpframefile);
+ break;
+ default:
+ return FALSE;
+ break;
+ }
+ return TRUE;
+}
+
+static void
+gst_aml_v4l2_get_driver_min_buffers(GstAmlV4l2Object *v4l2object)
+{
+ struct v4l2_control control = {
+ 0,
+ };
+
+ g_return_if_fail(GST_AML_V4L2_IS_OPEN(v4l2object));
+
+ if (V4L2_TYPE_IS_OUTPUT(v4l2object->type))
+ control.id = V4L2_CID_MIN_BUFFERS_FOR_OUTPUT;
+ else
+ control.id = V4L2_CID_MIN_BUFFERS_FOR_CAPTURE;
+
+ if (v4l2object->ioctl(v4l2object->video_fd, VIDIOC_G_CTRL, &control) == 0)
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "driver requires a minimum of %d buffers", control.value);
+ v4l2object->min_buffers = control.value;
+ }
+ else
+ {
+ v4l2object->min_buffers = 0;
+ }
+}
+
+gboolean
+gst_aml_v4l2_object_open(GstAmlV4l2Object *v4l2object)
+{
+ if (!gst_aml_v4l2_open(v4l2object))
+ return FALSE;
+
+ return TRUE;
+}
+
+gboolean
+gst_aml_v4l2_object_open_shared(GstAmlV4l2Object *v4l2object, GstAmlV4l2Object *other)
+{
+ gboolean ret;
+
+ ret = gst_aml_v4l2_dup(v4l2object, other);
+
+ if (ret && !V4L2_TYPE_IS_OUTPUT(v4l2object->type))
+ {
+ gst_poll_fd_init(&v4l2object->pollfd);
+ v4l2object->pollfd.fd = v4l2object->video_fd;
+ gst_poll_add_fd(v4l2object->poll, &v4l2object->pollfd);
+ /* used for dequeue event */
+ gst_poll_fd_ctl_read(v4l2object->poll, &v4l2object->pollfd, TRUE);
+ gst_poll_fd_ctl_pri(v4l2object->poll, &v4l2object->pollfd, TRUE);
+ }
+
+ return ret;
+}
+
+gboolean
+gst_aml_v4l2_object_close(GstAmlV4l2Object *v4l2object)
+{
+ if (!gst_aml_v4l2_close(v4l2object))
+ return FALSE;
+
+ gst_caps_replace(&v4l2object->probed_caps, NULL);
+
+ /* reset our copy of the device caps */
+ v4l2object->device_caps = 0;
+
+ if (v4l2object->formats)
+ {
+ gst_aml_v4l2_object_clear_format_list(v4l2object);
+ }
+
+ if (v4l2object->par)
+ {
+ g_value_unset(v4l2object->par);
+ g_free(v4l2object->par);
+ v4l2object->par = NULL;
+ }
+
+ if (v4l2object->channel)
+ {
+ g_free(v4l2object->channel);
+ v4l2object->channel = NULL;
+ }
+
+ return TRUE;
+}
+
+static struct v4l2_fmtdesc *
+gst_aml_v4l2_object_get_format_from_fourcc(GstAmlV4l2Object *v4l2object,
+ guint32 fourcc)
+{
+ struct v4l2_fmtdesc *fmt;
+ GSList *walk;
+
+ if (fourcc == 0)
+ return NULL;
+
+ walk = gst_aml_v4l2_object_get_format_list(v4l2object);
+ while (walk)
+ {
+ fmt = (struct v4l2_fmtdesc *)walk->data;
+ if (fmt->pixelformat == fourcc)
+ return fmt;
+ /* special case for jpeg */
+ if (fmt->pixelformat == V4L2_PIX_FMT_MJPEG ||
+ fmt->pixelformat == V4L2_PIX_FMT_JPEG ||
+ fmt->pixelformat == V4L2_PIX_FMT_PJPG)
+ {
+ if (fourcc == V4L2_PIX_FMT_JPEG || fourcc == V4L2_PIX_FMT_MJPEG ||
+ fourcc == V4L2_PIX_FMT_PJPG)
+ {
+ return fmt;
+ }
+ }
+ walk = g_slist_next(walk);
+ }
+
+ return NULL;
+}
+
+/* complete made up ranking, the values themselves are meaningless */
+/* These ranks MUST be X such that X<<15 fits on a signed int - see
+ the comment at the end of gst_aml_v4l2_object_format_get_rank. */
+#define YUV_BASE_RANK 1000
+#define JPEG_BASE_RANK 500
+#define DV_BASE_RANK 200
+#define RGB_BASE_RANK 100
+#define YUV_ODD_BASE_RANK 50
+#define RGB_ODD_BASE_RANK 25
+#define BAYER_BASE_RANK 15
+#define S910_BASE_RANK 10
+#define GREY_BASE_RANK 5
+#define PWC_BASE_RANK 1
+
+static gint
+gst_aml_v4l2_object_format_get_rank(const struct v4l2_fmtdesc *fmt)
+{
+ guint32 fourcc = fmt->pixelformat;
+ gboolean emulated = ((fmt->flags & V4L2_FMT_FLAG_EMULATED) != 0);
+ gint rank = 0;
+
+ switch (fourcc)
+ {
+ case V4L2_PIX_FMT_MJPEG:
+ case V4L2_PIX_FMT_PJPG:
+ rank = JPEG_BASE_RANK;
+ break;
+ case V4L2_PIX_FMT_JPEG:
+ rank = JPEG_BASE_RANK + 1;
+ break;
+ case V4L2_PIX_FMT_MPEG: /* MPEG */
+ rank = JPEG_BASE_RANK + 2;
+ break;
+
+ case V4L2_PIX_FMT_RGB332:
+ case V4L2_PIX_FMT_ARGB555:
+ case V4L2_PIX_FMT_XRGB555:
+ case V4L2_PIX_FMT_RGB555:
+ case V4L2_PIX_FMT_ARGB555X:
+ case V4L2_PIX_FMT_XRGB555X:
+ case V4L2_PIX_FMT_RGB555X:
+ case V4L2_PIX_FMT_BGR666:
+ case V4L2_PIX_FMT_RGB565:
+ case V4L2_PIX_FMT_RGB565X:
+ case V4L2_PIX_FMT_RGB444:
+ case V4L2_PIX_FMT_Y4:
+ case V4L2_PIX_FMT_Y6:
+ case V4L2_PIX_FMT_Y10:
+ case V4L2_PIX_FMT_Y12:
+ case V4L2_PIX_FMT_Y10BPACK:
+ case V4L2_PIX_FMT_YUV555:
+ case V4L2_PIX_FMT_YUV565:
+ case V4L2_PIX_FMT_YUV32:
+ case V4L2_PIX_FMT_NV12MT_16X16:
+ case V4L2_PIX_FMT_NV42:
+ case V4L2_PIX_FMT_H264_MVC:
+ rank = RGB_ODD_BASE_RANK;
+ break;
+
+ case V4L2_PIX_FMT_RGB24:
+ case V4L2_PIX_FMT_BGR24:
+ rank = RGB_BASE_RANK - 1;
+ break;
+
+ case V4L2_PIX_FMT_RGB32:
+ case V4L2_PIX_FMT_BGR32:
+ case V4L2_PIX_FMT_ABGR32:
+ case V4L2_PIX_FMT_XBGR32:
+ case V4L2_PIX_FMT_ARGB32:
+ case V4L2_PIX_FMT_XRGB32:
+ rank = RGB_BASE_RANK;
+ break;
+
+ case V4L2_PIX_FMT_GREY: /* 8 Greyscale */
+ rank = GREY_BASE_RANK;
+ break;
+
+ case V4L2_PIX_FMT_NV12: /* 12 Y/CbCr 4:2:0 */
+ case V4L2_PIX_FMT_NV12M: /* Same as NV12 */
+ case V4L2_PIX_FMT_NV12MT: /* NV12 64x32 tile */
+ case V4L2_PIX_FMT_NV21: /* 12 Y/CrCb 4:2:0 */
+ case V4L2_PIX_FMT_NV21M: /* Same as NV21 */
+ case V4L2_PIX_FMT_YYUV: /* 16 YUV 4:2:2 */
+ case V4L2_PIX_FMT_HI240: /* 8 8-bit color */
+ case V4L2_PIX_FMT_NV16: /* 16 Y/CbCr 4:2:2 */
+ case V4L2_PIX_FMT_NV16M: /* Same as NV16 */
+ case V4L2_PIX_FMT_NV61: /* 16 Y/CrCb 4:2:2 */
+ case V4L2_PIX_FMT_NV61M: /* Same as NV61 */
+ case V4L2_PIX_FMT_NV24: /* 24 Y/CrCb 4:4:4 */
+ rank = YUV_ODD_BASE_RANK;
+ break;
+
+ case V4L2_PIX_FMT_YVU410: /* YVU9, 9 bits per pixel */
+ rank = YUV_BASE_RANK + 3;
+ break;
+ case V4L2_PIX_FMT_YUV410: /* YUV9, 9 bits per pixel */
+ rank = YUV_BASE_RANK + 2;
+ break;
+ case V4L2_PIX_FMT_YUV420: /* I420, 12 bits per pixel */
+ case V4L2_PIX_FMT_YUV420M:
+ rank = YUV_BASE_RANK + 7;
+ break;
+ case V4L2_PIX_FMT_YUYV: /* YUY2, 16 bits per pixel */
+ rank = YUV_BASE_RANK + 10;
+ break;
+ case V4L2_PIX_FMT_YVU420: /* YV12, 12 bits per pixel */
+ rank = YUV_BASE_RANK + 6;
+ break;
+ case V4L2_PIX_FMT_UYVY: /* UYVY, 16 bits per pixel */
+ rank = YUV_BASE_RANK + 9;
+ break;
+ case V4L2_PIX_FMT_YUV444:
+ rank = YUV_BASE_RANK + 6;
+ break;
+ case V4L2_PIX_FMT_Y41P: /* Y41P, 12 bits per pixel */
+ rank = YUV_BASE_RANK + 5;
+ break;
+ case V4L2_PIX_FMT_YUV411P: /* Y41B, 12 bits per pixel */
+ rank = YUV_BASE_RANK + 4;
+ break;
+ case V4L2_PIX_FMT_YUV422P: /* Y42B, 16 bits per pixel */
+ rank = YUV_BASE_RANK + 8;
+ break;
+
+ case V4L2_PIX_FMT_DV:
+ rank = DV_BASE_RANK;
+ break;
+
+ case V4L2_PIX_FMT_WNVA: /* Winnov hw compres */
+ rank = 0;
+ break;
+
+ case V4L2_PIX_FMT_SBGGR8:
+ case V4L2_PIX_FMT_SGBRG8:
+ case V4L2_PIX_FMT_SGRBG8:
+ case V4L2_PIX_FMT_SRGGB8:
+ rank = BAYER_BASE_RANK;
+ break;
+
+ case V4L2_PIX_FMT_SN9C10X:
+ rank = S910_BASE_RANK;
+ break;
+
+ case V4L2_PIX_FMT_PWC1:
+ rank = PWC_BASE_RANK;
+ break;
+ case V4L2_PIX_FMT_PWC2:
+ rank = PWC_BASE_RANK;
+ break;
+
+ default:
+ rank = 0;
+ break;
+ }
+
+ /* All ranks are below 1<<15 so a shift by 15
+ * will a) make all non-emulated formats larger
+ * than emulated and b) will not overflow
+ */
+ if (!emulated)
+ rank <<= 15;
+
+ return rank;
+}
+
+static gint
+format_cmp_func(gconstpointer a, gconstpointer b)
+{
+ const struct v4l2_fmtdesc *fa = a;
+ const struct v4l2_fmtdesc *fb = b;
+
+ if (fa->pixelformat == fb->pixelformat)
+ return 0;
+
+ return gst_aml_v4l2_object_format_get_rank(fb) -
+ gst_aml_v4l2_object_format_get_rank(fa);
+}
+
+/******************************************************
+ * gst_aml_v4l2_object_fill_format_list():
+ * create list of supported capture formats
+ * return value: TRUE on success, FALSE on error
+ ******************************************************/
+static gboolean
+gst_aml_v4l2_object_fill_format_list(GstAmlV4l2Object *v4l2object,
+ enum v4l2_buf_type type)
+{
+ gint n;
+ struct v4l2_fmtdesc *format;
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "getting src format enumerations");
+
+ /* format enumeration */
+ for (n = 0;; n++)
+ {
+ format = g_new0(struct v4l2_fmtdesc, 1);
+
+ format->index = n;
+ format->type = type;
+
+ if (v4l2object->ioctl(v4l2object->video_fd, VIDIOC_ENUM_FMT, format) < 0)
+ {
+ if (errno == EINVAL)
+ {
+ g_free(format);
+ break; /* end of enumeration */
+ }
+ else
+ {
+ goto failed;
+ }
+ }
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "index: %u", format->index);
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "type: %d", format->type);
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "flags: %08x", format->flags);
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "description: '%s'",
+ format->description);
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "pixelformat: %" GST_FOURCC_FORMAT,
+ GST_FOURCC_ARGS(format->pixelformat));
+
+ /* sort formats according to our preference; we do this, because caps
+ * are probed in the order the formats are in the list, and the order of
+ * formats in the final probed caps matters for things like fixation */
+ v4l2object->formats = g_slist_insert_sorted(v4l2object->formats, format,
+ (GCompareFunc)format_cmp_func);
+ }
+
+#ifndef GST_DISABLE_GST_DEBUG
+ {
+ GSList *l;
+
+ GST_INFO_OBJECT(v4l2object->dbg_obj, "got %d format(s):", n);
+ for (l = v4l2object->formats; l != NULL; l = l->next)
+ {
+ format = l->data;
+
+ GST_INFO_OBJECT(v4l2object->dbg_obj,
+ " %" GST_FOURCC_FORMAT "%s", GST_FOURCC_ARGS(format->pixelformat),
+ ((format->flags & V4L2_FMT_FLAG_EMULATED)) ? " (emulated)" : "");
+ }
+ }
+#endif
+
+ return TRUE;
+
+ /* ERRORS */
+failed:
+{
+ g_free(format);
+
+ if (v4l2object->element)
+ return FALSE;
+
+ GST_ELEMENT_ERROR(v4l2object->element, RESOURCE, SETTINGS,
+ (_("Failed to enumerate possible video formats device '%s' can work "
+ "with"),
+ v4l2object->videodev),
+ ("Failed to get number %d in pixelformat enumeration for %s. (%d - %s)",
+ n, v4l2object->videodev, errno, g_strerror(errno)));
+
+ return FALSE;
+}
+}
+
+/*
+ * Get the list of supported capture formats, a list of
+ * <code>struct v4l2_fmtdesc</code>.
+ */
+static GSList *
+gst_aml_v4l2_object_get_format_list(GstAmlV4l2Object *v4l2object)
+{
+ if (!v4l2object->formats)
+ {
+
+ /* check usual way */
+ gst_aml_v4l2_object_fill_format_list(v4l2object, v4l2object->type);
+
+ /* if our driver supports multi-planar
+ * and if formats are still empty then we can workaround driver bug
+ * by also looking up formats as if our device was not supporting
+ * multiplanar */
+ if (!v4l2object->formats)
+ {
+ switch (v4l2object->type)
+ {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+ gst_aml_v4l2_object_fill_format_list(v4l2object,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE);
+ break;
+
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+ gst_aml_v4l2_object_fill_format_list(v4l2object,
+ V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ break;
+
+ default:
+ break;
+ }
+ }
+ }
+ return v4l2object->formats;
+}
+
+static GstVideoFormat
+gst_aml_v4l2_object_v4l2fourcc_to_video_format(guint32 fourcc)
+{
+ GstVideoFormat format;
+
+ switch (fourcc)
+ {
+ case V4L2_PIX_FMT_GREY: /* 8 Greyscale */
+ format = GST_VIDEO_FORMAT_GRAY8;
+ break;
+ case V4L2_PIX_FMT_Y16:
+ format = GST_VIDEO_FORMAT_GRAY16_LE;
+ break;
+ case V4L2_PIX_FMT_Y16_BE:
+ format = GST_VIDEO_FORMAT_GRAY16_BE;
+ break;
+ case V4L2_PIX_FMT_XRGB555:
+ case V4L2_PIX_FMT_RGB555:
+ format = GST_VIDEO_FORMAT_RGB15;
+ break;
+ case V4L2_PIX_FMT_XRGB555X:
+ case V4L2_PIX_FMT_RGB555X:
+ format = GST_VIDEO_FORMAT_BGR15;
+ break;
+ case V4L2_PIX_FMT_RGB565:
+ format = GST_VIDEO_FORMAT_RGB16;
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ format = GST_VIDEO_FORMAT_RGB;
+ break;
+ case V4L2_PIX_FMT_BGR24:
+ format = GST_VIDEO_FORMAT_BGR;
+ break;
+ case V4L2_PIX_FMT_XRGB32:
+ case V4L2_PIX_FMT_RGB32:
+ format = GST_VIDEO_FORMAT_xRGB;
+ break;
+ case V4L2_PIX_FMT_XBGR32:
+ case V4L2_PIX_FMT_BGR32:
+ format = GST_VIDEO_FORMAT_BGRx;
+ break;
+ case V4L2_PIX_FMT_ABGR32:
+ format = GST_VIDEO_FORMAT_BGRA;
+ break;
+ case V4L2_PIX_FMT_ARGB32:
+ format = GST_VIDEO_FORMAT_ARGB;
+ break;
+ case V4L2_PIX_FMT_NV12:
+ case V4L2_PIX_FMT_NV12M:
+ format = GST_VIDEO_FORMAT_NV12;
+ break;
+ case V4L2_PIX_FMT_NV12MT:
+ format = GST_VIDEO_FORMAT_NV12_64Z32;
+ break;
+ case V4L2_PIX_FMT_NV21:
+ case V4L2_PIX_FMT_NV21M:
+ format = GST_VIDEO_FORMAT_NV21;
+ break;
+ case V4L2_PIX_FMT_YVU410:
+ format = GST_VIDEO_FORMAT_YVU9;
+ break;
+ case V4L2_PIX_FMT_YUV410:
+ format = GST_VIDEO_FORMAT_YUV9;
+ break;
+ case V4L2_PIX_FMT_YUV420:
+ case V4L2_PIX_FMT_YUV420M:
+ format = GST_VIDEO_FORMAT_I420;
+ break;
+ case V4L2_PIX_FMT_YUYV:
+ format = GST_VIDEO_FORMAT_YUY2;
+ break;
+ case V4L2_PIX_FMT_YVU420:
+ format = GST_VIDEO_FORMAT_YV12;
+ break;
+ case V4L2_PIX_FMT_UYVY:
+ format = GST_VIDEO_FORMAT_UYVY;
+ break;
+ case V4L2_PIX_FMT_YUV411P:
+ format = GST_VIDEO_FORMAT_Y41B;
+ break;
+ case V4L2_PIX_FMT_YUV422P:
+ format = GST_VIDEO_FORMAT_Y42B;
+ break;
+ case V4L2_PIX_FMT_YVYU:
+ format = GST_VIDEO_FORMAT_YVYU;
+ break;
+ case V4L2_PIX_FMT_NV16:
+ case V4L2_PIX_FMT_NV16M:
+ format = GST_VIDEO_FORMAT_NV16;
+ break;
+ case V4L2_PIX_FMT_NV61:
+ case V4L2_PIX_FMT_NV61M:
+ format = GST_VIDEO_FORMAT_NV61;
+ break;
+ case V4L2_PIX_FMT_NV24:
+ format = GST_VIDEO_FORMAT_NV24;
+ break;
+ default:
+ format = GST_VIDEO_FORMAT_UNKNOWN;
+ break;
+ }
+
+ return format;
+}
+
+static gboolean
+gst_amL_v4l2_object_v4l2fourcc_is_rgb(guint32 fourcc)
+{
+ gboolean ret = FALSE;
+
+ switch (fourcc)
+ {
+ case V4L2_PIX_FMT_XRGB555:
+ case V4L2_PIX_FMT_RGB555:
+ case V4L2_PIX_FMT_XRGB555X:
+ case V4L2_PIX_FMT_RGB555X:
+ case V4L2_PIX_FMT_RGB565:
+ case V4L2_PIX_FMT_RGB24:
+ case V4L2_PIX_FMT_BGR24:
+ case V4L2_PIX_FMT_XRGB32:
+ case V4L2_PIX_FMT_RGB32:
+ case V4L2_PIX_FMT_XBGR32:
+ case V4L2_PIX_FMT_BGR32:
+ case V4L2_PIX_FMT_ABGR32:
+ case V4L2_PIX_FMT_ARGB32:
+ case V4L2_PIX_FMT_SBGGR8:
+ case V4L2_PIX_FMT_SGBRG8:
+ case V4L2_PIX_FMT_SGRBG8:
+ case V4L2_PIX_FMT_SRGGB8:
+ ret = TRUE;
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static GstStructure *
+gst_aml_v4l2_object_v4l2fourcc_to_bare_struct(guint32 fourcc)
+{
+ GstStructure *structure = NULL;
+
+ switch (fourcc)
+ {
+ case V4L2_PIX_FMT_MJPEG: /* Motion-JPEG */
+ case V4L2_PIX_FMT_PJPG: /* Progressive-JPEG */
+ case V4L2_PIX_FMT_JPEG: /* JFIF JPEG */
+ structure = gst_structure_new_empty("image/jpeg");
+ break;
+ case V4L2_PIX_FMT_MPEG1:
+ structure = gst_structure_new("video/mpeg",
+ "mpegversion", G_TYPE_INT, 1, NULL);
+ break;
+ case V4L2_PIX_FMT_MPEG2:
+ structure = gst_structure_new("video/mpeg",
+ "mpegversion", G_TYPE_INT, 2, NULL);
+ gst_structure_set(structure, "systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
+ GST_DEBUG("aml set mpeg2 systemstream to false");
+ break;
+ case V4L2_PIX_FMT_MPEG4:
+ case V4L2_PIX_FMT_XVID:
+ structure = gst_structure_new("video/mpeg",
+ "mpegversion", G_TYPE_INT, 4, "systemstream",
+ G_TYPE_BOOLEAN, FALSE, NULL);
+ break;
+ case V4L2_PIX_FMT_FWHT:
+ structure = gst_structure_new_empty("video/x-fwht");
+ break;
+ case V4L2_PIX_FMT_H263:
+ structure = gst_structure_new("video/x-h263",
+ "variant", G_TYPE_STRING, "itu", NULL);
+ break;
+ case V4L2_PIX_FMT_H264: /* H.264 */
+ structure = gst_structure_new("video/x-h264",
+ "stream-format", G_TYPE_STRING, "byte-stream", "alignment",
+ G_TYPE_STRING, "au", NULL);
+ break;
+ case V4L2_PIX_FMT_H264_NO_SC:
+ structure = gst_structure_new("video/x-h264",
+ "stream-format", G_TYPE_STRING, "avc", "alignment",
+ G_TYPE_STRING, "au", NULL);
+ break;
+ case V4L2_PIX_FMT_HEVC: /* H.265 */
+ structure = gst_structure_new("video/x-h265",
+ "stream-format", G_TYPE_STRING, "byte-stream", "alignment",
+ G_TYPE_STRING, "au", NULL);
+ break;
+ case V4L2_PIX_FMT_VC1_ANNEX_G:
+ case V4L2_PIX_FMT_VC1_ANNEX_L:
+ structure = gst_structure_new("video/x-wmv",
+ "wmvversion", G_TYPE_INT, 3, "format", G_TYPE_STRING, "WVC1", NULL);
+ break;
+ case V4L2_PIX_FMT_VP8:
+ structure = gst_structure_new_empty("video/x-vp8");
+ break;
+ case V4L2_PIX_FMT_VP9:
+ structure = gst_structure_new_empty("video/x-vp9");
+ break;
+ case V4L2_PIX_FMT_AV1:
+ structure = gst_structure_new_empty("video/x-av1");
+ break;
+ case V4L2_PIX_FMT_GREY: /* 8 Greyscale */
+ case V4L2_PIX_FMT_Y16:
+ case V4L2_PIX_FMT_Y16_BE:
+ case V4L2_PIX_FMT_XRGB555:
+ case V4L2_PIX_FMT_RGB555:
+ case V4L2_PIX_FMT_XRGB555X:
+ case V4L2_PIX_FMT_RGB555X:
+ case V4L2_PIX_FMT_RGB565:
+ case V4L2_PIX_FMT_RGB24:
+ case V4L2_PIX_FMT_BGR24:
+ case V4L2_PIX_FMT_RGB32:
+ case V4L2_PIX_FMT_XRGB32:
+ case V4L2_PIX_FMT_ARGB32:
+ case V4L2_PIX_FMT_BGR32:
+ case V4L2_PIX_FMT_XBGR32:
+ case V4L2_PIX_FMT_ABGR32:
+ case V4L2_PIX_FMT_NV12: /* 12 Y/CbCr 4:2:0 */
+ case V4L2_PIX_FMT_NV12M:
+ case V4L2_PIX_FMT_NV12MT:
+ case V4L2_PIX_FMT_NV21: /* 12 Y/CrCb 4:2:0 */
+ case V4L2_PIX_FMT_NV21M:
+ case V4L2_PIX_FMT_NV16: /* 16 Y/CbCr 4:2:2 */
+ case V4L2_PIX_FMT_NV16M:
+ case V4L2_PIX_FMT_NV61: /* 16 Y/CrCb 4:2:2 */
+ case V4L2_PIX_FMT_NV61M:
+ case V4L2_PIX_FMT_NV24: /* 24 Y/CrCb 4:4:4 */
+ case V4L2_PIX_FMT_YVU410:
+ case V4L2_PIX_FMT_YUV410:
+ case V4L2_PIX_FMT_YUV420: /* I420/IYUV */
+ case V4L2_PIX_FMT_YUV420M:
+ case V4L2_PIX_FMT_YUYV:
+ case V4L2_PIX_FMT_YVU420:
+ case V4L2_PIX_FMT_UYVY:
+ case V4L2_PIX_FMT_YUV422P:
+ case V4L2_PIX_FMT_YVYU:
+ case V4L2_PIX_FMT_YUV411P:
+ {
+ GstVideoFormat format;
+ format = gst_aml_v4l2_object_v4l2fourcc_to_video_format(fourcc);
+ if (format != GST_VIDEO_FORMAT_UNKNOWN)
+ structure = gst_structure_new("video/x-raw",
+ "format", G_TYPE_STRING, gst_video_format_to_string(format), NULL);
+ break;
+ }
+ case V4L2_PIX_FMT_DV:
+ structure =
+ gst_structure_new("video/x-dv", "systemstream", G_TYPE_BOOLEAN, TRUE,
+ NULL);
+ break;
+ case V4L2_PIX_FMT_MPEG: /* MPEG */
+ structure = gst_structure_new("video/mpegts",
+ "systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
+ break;
+ case V4L2_PIX_FMT_WNVA: /* Winnov hw compres */
+ break;
+ case V4L2_PIX_FMT_SBGGR8:
+ case V4L2_PIX_FMT_SGBRG8:
+ case V4L2_PIX_FMT_SGRBG8:
+ case V4L2_PIX_FMT_SRGGB8:
+ structure = gst_structure_new("video/x-bayer", "format", G_TYPE_STRING,
+ fourcc == V4L2_PIX_FMT_SBGGR8 ? "bggr" : fourcc == V4L2_PIX_FMT_SGBRG8 ? "gbrg"
+ : fourcc == V4L2_PIX_FMT_SGRBG8 ? "grbg"
+ :
+ /* fourcc == V4L2_PIX_FMT_SRGGB8 ? */ "rggb",
+ NULL);
+ break;
+ case V4L2_PIX_FMT_SN9C10X:
+ structure = gst_structure_new_empty("video/x-sonix");
+ break;
+ case V4L2_PIX_FMT_PWC1:
+ structure = gst_structure_new_empty("video/x-pwc1");
+ break;
+ case V4L2_PIX_FMT_PWC2:
+ structure = gst_structure_new_empty("video/x-pwc2");
+ break;
+ case V4L2_PIX_FMT_RGB332:
+ case V4L2_PIX_FMT_BGR666:
+ case V4L2_PIX_FMT_ARGB555X:
+ case V4L2_PIX_FMT_RGB565X:
+ case V4L2_PIX_FMT_RGB444:
+ case V4L2_PIX_FMT_YYUV: /* 16 YUV 4:2:2 */
+ case V4L2_PIX_FMT_HI240: /* 8 8-bit color */
+ case V4L2_PIX_FMT_Y4:
+ case V4L2_PIX_FMT_Y6:
+ case V4L2_PIX_FMT_Y10:
+ case V4L2_PIX_FMT_Y12:
+ case V4L2_PIX_FMT_Y10BPACK:
+ case V4L2_PIX_FMT_YUV444:
+ case V4L2_PIX_FMT_YUV555:
+ case V4L2_PIX_FMT_YUV565:
+ case V4L2_PIX_FMT_Y41P:
+ case V4L2_PIX_FMT_YUV32:
+ case V4L2_PIX_FMT_NV12MT_16X16:
+ case V4L2_PIX_FMT_NV42:
+ case V4L2_PIX_FMT_H264_MVC:
+ default:
+ GST_DEBUG("Unsupported fourcc 0x%08x %" GST_FOURCC_FORMAT,
+ fourcc, GST_FOURCC_ARGS(fourcc));
+ break;
+ }
+
+ return structure;
+}
+
+GstStructure *
+gst_aml_v4l2_object_v4l2fourcc_to_structure(guint32 fourcc)
+{
+ GstStructure *template;
+ gint i;
+
+ template = gst_aml_v4l2_object_v4l2fourcc_to_bare_struct(fourcc);
+
+ if (template == NULL)
+ goto done;
+
+ for (i = 0; i < GST_AML_V4L2_FORMAT_COUNT; i++)
+ {
+ if (gst_aml_v4l2_formats[i].format != fourcc)
+ continue;
+
+ if (gst_aml_v4l2_formats[i].dimensions)
+ {
+ gst_structure_set(template,
+ "width", GST_TYPE_INT_RANGE, 1, GST_AML_V4L2_MAX_SIZE,
+ "height", GST_TYPE_INT_RANGE, 1, GST_AML_V4L2_MAX_SIZE,
+ "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
+ }
+ break;
+ }
+
+done:
+ return template;
+}
+
+static GstCaps *
+gst_aml_v4l2_object_get_caps_helper(GstAmlV4L2FormatFlags flags)
+{
+ GstStructure *structure;
+ GstCaps *caps;
+ guint i;
+
+ caps = gst_caps_new_empty();
+ for (i = 0; i < GST_AML_V4L2_FORMAT_COUNT; i++)
+ {
+
+ if ((gst_aml_v4l2_formats[i].flags & flags) == 0)
+ continue;
+
+ structure =
+ gst_aml_v4l2_object_v4l2fourcc_to_bare_struct(gst_aml_v4l2_formats[i].format);
+
+ if (structure)
+ {
+ GstStructure *alt_s = NULL;
+
+ if (gst_aml_v4l2_formats[i].dimensions)
+ {
+ gst_structure_set(structure,
+ "width", GST_TYPE_INT_RANGE, 1, GST_AML_V4L2_MAX_SIZE,
+ "height", GST_TYPE_INT_RANGE, 1, GST_AML_V4L2_MAX_SIZE,
+ "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
+ }
+
+ switch (gst_aml_v4l2_formats[i].format)
+ {
+ case V4L2_PIX_FMT_RGB32:
+ alt_s = gst_structure_copy(structure);
+ gst_structure_set(alt_s, "format", G_TYPE_STRING, "ARGB", NULL);
+ break;
+ case V4L2_PIX_FMT_BGR32:
+ alt_s = gst_structure_copy(structure);
+ gst_structure_set(alt_s, "format", G_TYPE_STRING, "BGRA", NULL);
+ default:
+ break;
+ }
+
+ gst_caps_append_structure(caps, structure);
+
+ if (alt_s)
+ gst_caps_append_structure(caps, alt_s);
+ }
+ }
+
+ return gst_caps_simplify(caps);
+}
+
+GstCaps *
+gst_aml_v4l2_object_get_all_caps(void)
+{
+ static GstCaps *caps = NULL;
+
+ if (g_once_init_enter(&caps))
+ {
+ GstCaps *all_caps = gst_aml_v4l2_object_get_caps_helper(GST_V4L2_ALL);
+ GST_MINI_OBJECT_FLAG_SET(all_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
+ g_once_init_leave(&caps, all_caps);
+ }
+
+ return caps;
+}
+
+GstCaps *
+gst_aml_v4l2_object_get_raw_caps(void)
+{
+ static GstCaps *caps = NULL;
+
+ if (g_once_init_enter(&caps))
+ {
+ GstCaps *raw_caps = gst_aml_v4l2_object_get_caps_helper(GST_V4L2_RAW);
+ GST_MINI_OBJECT_FLAG_SET(raw_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
+ g_once_init_leave(&caps, raw_caps);
+ }
+
+ return caps;
+}
+
+GstCaps *
+gst_aml_v4l2_object_get_codec_caps(void)
+{
+ static GstCaps *caps = NULL;
+
+ if (g_once_init_enter(&caps))
+ {
+ GstCaps *codec_caps = gst_aml_v4l2_object_get_caps_helper(GST_V4L2_CODEC);
+ GST_MINI_OBJECT_FLAG_SET(codec_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
+ g_once_init_leave(&caps, codec_caps);
+ }
+
+ return caps;
+}
+
+/* collect data for the given caps
+ * @caps: given input caps
+ * @format: location for the v4l format
+ * @w/@h: location for width and height
+ * @fps_n/@fps_d: location for framerate
+ * @size: location for expected size of the frame or 0 if unknown
+ */
+static gboolean
+gst_aml_v4l2_object_get_caps_info(GstAmlV4l2Object *v4l2object, GstCaps *caps,
+ struct v4l2_fmtdesc **format, GstVideoInfo *info)
+{
+ GstStructure *structure;
+ guint32 fourcc = 0, fourcc_nc = 0;
+ const gchar *mimetype;
+ struct v4l2_fmtdesc *fmt = NULL;
+
+ structure = gst_caps_get_structure(caps, 0);
+
+ mimetype = gst_structure_get_name(structure);
+
+ if (!gst_video_info_from_caps(info, caps))
+ goto invalid_format;
+
+ if (g_str_equal(mimetype, "video/x-raw"))
+ {
+ switch (GST_VIDEO_INFO_FORMAT(info))
+ {
+ case GST_VIDEO_FORMAT_I420:
+ fourcc = V4L2_PIX_FMT_YUV420;
+ fourcc_nc = V4L2_PIX_FMT_YUV420M;
+ break;
+ case GST_VIDEO_FORMAT_YUY2:
+ fourcc = V4L2_PIX_FMT_YUYV;
+ break;
+ case GST_VIDEO_FORMAT_UYVY:
+ fourcc = V4L2_PIX_FMT_UYVY;
+ break;
+ case GST_VIDEO_FORMAT_YV12:
+ fourcc = V4L2_PIX_FMT_YVU420;
+ break;
+ case GST_VIDEO_FORMAT_Y41B:
+ fourcc = V4L2_PIX_FMT_YUV411P;
+ break;
+ case GST_VIDEO_FORMAT_Y42B:
+ fourcc = V4L2_PIX_FMT_YUV422P;
+ break;
+ case GST_VIDEO_FORMAT_NV12:
+ fourcc = V4L2_PIX_FMT_NV12;
+ fourcc_nc = V4L2_PIX_FMT_NV12M;
+ break;
+ case GST_VIDEO_FORMAT_NV12_64Z32:
+ fourcc_nc = V4L2_PIX_FMT_NV12MT;
+ break;
+ case GST_VIDEO_FORMAT_NV21:
+ fourcc = V4L2_PIX_FMT_NV21;
+ fourcc_nc = V4L2_PIX_FMT_NV21M;
+ break;
+ case GST_VIDEO_FORMAT_NV16:
+ fourcc = V4L2_PIX_FMT_NV16;
+ fourcc_nc = V4L2_PIX_FMT_NV16M;
+ break;
+ case GST_VIDEO_FORMAT_NV61:
+ fourcc = V4L2_PIX_FMT_NV61;
+ fourcc_nc = V4L2_PIX_FMT_NV61M;
+ break;
+ case GST_VIDEO_FORMAT_NV24:
+ fourcc = V4L2_PIX_FMT_NV24;
+ break;
+ case GST_VIDEO_FORMAT_YVYU:
+ fourcc = V4L2_PIX_FMT_YVYU;
+ break;
+ case GST_VIDEO_FORMAT_RGB15:
+ fourcc = V4L2_PIX_FMT_RGB555;
+ fourcc_nc = V4L2_PIX_FMT_XRGB555;
+ break;
+ case GST_VIDEO_FORMAT_RGB16:
+ fourcc = V4L2_PIX_FMT_RGB565;
+ break;
+ case GST_VIDEO_FORMAT_RGB:
+ fourcc = V4L2_PIX_FMT_RGB24;
+ break;
+ case GST_VIDEO_FORMAT_BGR:
+ fourcc = V4L2_PIX_FMT_BGR24;
+ break;
+ case GST_VIDEO_FORMAT_xRGB:
+ fourcc = V4L2_PIX_FMT_RGB32;
+ fourcc_nc = V4L2_PIX_FMT_XRGB32;
+ break;
+ case GST_VIDEO_FORMAT_ARGB:
+ fourcc = V4L2_PIX_FMT_RGB32;
+ fourcc_nc = V4L2_PIX_FMT_ARGB32;
+ break;
+ case GST_VIDEO_FORMAT_BGRx:
+ fourcc = V4L2_PIX_FMT_BGR32;
+ fourcc_nc = V4L2_PIX_FMT_XBGR32;
+ break;
+ case GST_VIDEO_FORMAT_BGRA:
+ fourcc = V4L2_PIX_FMT_BGR32;
+ fourcc_nc = V4L2_PIX_FMT_ABGR32;
+ break;
+ case GST_VIDEO_FORMAT_GRAY8:
+ fourcc = V4L2_PIX_FMT_GREY;
+ break;
+ case GST_VIDEO_FORMAT_GRAY16_LE:
+ fourcc = V4L2_PIX_FMT_Y16;
+ break;
+ case GST_VIDEO_FORMAT_GRAY16_BE:
+ fourcc = V4L2_PIX_FMT_Y16_BE;
+ break;
+ case GST_VIDEO_FORMAT_BGR15:
+ fourcc = V4L2_PIX_FMT_RGB555X;
+ fourcc_nc = V4L2_PIX_FMT_XRGB555X;
+ break;
+ default:
+ break;
+ }
+ }
+ else
+ {
+ if (g_str_equal(mimetype, "video/mpegts"))
+ {
+ fourcc = V4L2_PIX_FMT_MPEG;
+ }
+ else if (g_str_equal(mimetype, "video/x-dv"))
+ {
+ fourcc = V4L2_PIX_FMT_DV;
+ }
+ else if (g_str_equal(mimetype, "image/jpeg"))
+ {
+ fourcc = V4L2_PIX_FMT_JPEG;
+ }
+ else if (g_str_equal(mimetype, "video/mpeg"))
+ {
+ gint version;
+ if (gst_structure_get_int(structure, "mpegversion", &version))
+ {
+ switch (version)
+ {
+ case 1:
+ fourcc = V4L2_PIX_FMT_MPEG1;
+ break;
+ case 2:
+ fourcc = V4L2_PIX_FMT_MPEG2;
+ break;
+ case 4:
+ fourcc = V4L2_PIX_FMT_MPEG4;
+ fourcc_nc = V4L2_PIX_FMT_XVID;
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ else if (g_str_equal(mimetype, "video/x-fwht"))
+ {
+ fourcc = V4L2_PIX_FMT_FWHT;
+ }
+ else if (g_str_equal(mimetype, "video/x-h263"))
+ {
+ fourcc = V4L2_PIX_FMT_H263;
+ }
+ else if (g_str_equal(mimetype, "video/x-h264"))
+ {
+ const gchar *stream_format =
+ gst_structure_get_string(structure, "stream-format");
+ if (g_str_equal(stream_format, "avc"))
+ fourcc = V4L2_PIX_FMT_H264_NO_SC;
+ else
+ fourcc = V4L2_PIX_FMT_H264;
+ }
+ else if (g_str_equal(mimetype, "video/x-h265"))
+ {
+ fourcc = V4L2_PIX_FMT_HEVC;
+ }
+ else if (g_str_equal(mimetype, "video/x-vp8"))
+ {
+ fourcc = V4L2_PIX_FMT_VP8;
+ }
+ else if (g_str_equal(mimetype, "video/x-vp9"))
+ {
+ fourcc = V4L2_PIX_FMT_VP9;
+ }
+ else if (g_str_equal(mimetype, "video/x-av1"))
+ {
+ fourcc = V4L2_PIX_FMT_AV1;
+ }
+ else if (g_str_equal(mimetype, "video/x-bayer"))
+ {
+ const gchar *format = gst_structure_get_string(structure, "format");
+ if (format)
+ {
+ if (!g_ascii_strcasecmp(format, "bggr"))
+ fourcc = V4L2_PIX_FMT_SBGGR8;
+ else if (!g_ascii_strcasecmp(format, "gbrg"))
+ fourcc = V4L2_PIX_FMT_SGBRG8;
+ else if (!g_ascii_strcasecmp(format, "grbg"))
+ fourcc = V4L2_PIX_FMT_SGRBG8;
+ else if (!g_ascii_strcasecmp(format, "rggb"))
+ fourcc = V4L2_PIX_FMT_SRGGB8;
+ }
+ }
+ else if (g_str_equal(mimetype, "video/x-sonix"))
+ {
+ fourcc = V4L2_PIX_FMT_SN9C10X;
+ }
+ else if (g_str_equal(mimetype, "video/x-pwc1"))
+ {
+ fourcc = V4L2_PIX_FMT_PWC1;
+ }
+ else if (g_str_equal(mimetype, "video/x-pwc2"))
+ {
+ fourcc = V4L2_PIX_FMT_PWC2;
+ }
+ }
+
+ /* Prefer the non-contiguous if supported */
+ v4l2object->prefered_non_contiguous = TRUE;
+
+ if (fourcc_nc)
+ fmt = gst_aml_v4l2_object_get_format_from_fourcc(v4l2object, fourcc_nc);
+ else if (fourcc == 0)
+ goto unhandled_format;
+
+ if (fmt == NULL)
+ {
+ fmt = gst_aml_v4l2_object_get_format_from_fourcc(v4l2object, fourcc);
+ v4l2object->prefered_non_contiguous = FALSE;
+ }
+
+ if (fmt == NULL)
+ goto unsupported_format;
+
+ *format = fmt;
+
+ return TRUE;
+
+ /* ERRORS */
+invalid_format:
+{
+ GST_DEBUG_OBJECT(v4l2object, "invalid format");
+ return FALSE;
+}
+unhandled_format:
+{
+ GST_DEBUG_OBJECT(v4l2object, "unhandled format");
+ return FALSE;
+}
+unsupported_format:
+{
+ GST_DEBUG_OBJECT(v4l2object, "unsupported format");
+ return FALSE;
+}
+}
+
+static gboolean
+gst_aml_v4l2_object_get_nearest_size(GstAmlV4l2Object *v4l2object,
+ guint32 pixelformat, gint *width, gint *height);
+
+static void
+gst_aml_v4l2_object_add_aspect_ratio(GstAmlV4l2Object *v4l2object, GstStructure *s)
+{
+ if (v4l2object->keep_aspect && v4l2object->par)
+ gst_structure_set_value(s, "pixel-aspect-ratio", v4l2object->par);
+}
+
+/* returns TRUE if the value was changed in place, otherwise FALSE */
+static gboolean
+gst_aml_v4l2src_value_simplify(GValue *val)
+{
+ /* simplify list of one value to one value */
+ if (GST_VALUE_HOLDS_LIST(val) && gst_value_list_get_size(val) == 1)
+ {
+ const GValue *list_val;
+ GValue new_val = G_VALUE_INIT;
+
+ list_val = gst_value_list_get_value(val, 0);
+ g_value_init(&new_val, G_VALUE_TYPE(list_val));
+ g_value_copy(list_val, &new_val);
+ g_value_unset(val);
+ *val = new_val;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+gst_aml_v4l2_object_get_interlace_mode(enum v4l2_field field,
+ GstVideoInterlaceMode *interlace_mode)
+{
+ switch (field)
+ {
+ case V4L2_FIELD_ANY:
+ GST_ERROR("Driver bug detected - check driver with v4l2-compliance from http://git.linuxtv.org/v4l-utils.git\n");
+ /* fallthrough */
+ case V4L2_FIELD_NONE:
+ *interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
+ return TRUE;
+ case V4L2_FIELD_INTERLACED:
+ case V4L2_FIELD_INTERLACED_TB:
+ case V4L2_FIELD_INTERLACED_BT:
+ *interlace_mode = GST_VIDEO_INTERLACE_MODE_INTERLEAVED;
+ return TRUE;
+ default:
+ GST_ERROR("Unknown enum v4l2_field %d", field);
+ return FALSE;
+ }
+}
+
+static gboolean
+gst_aml_v4l2_object_get_colorspace(struct v4l2_format *fmt,
+ GstVideoColorimetry *cinfo)
+{
+ gboolean is_rgb =
+ gst_amL_v4l2_object_v4l2fourcc_is_rgb(fmt->fmt.pix.pixelformat);
+ enum v4l2_colorspace colorspace;
+ enum v4l2_quantization range;
+ enum v4l2_ycbcr_encoding matrix;
+ enum v4l2_xfer_func transfer;
+ gboolean ret = TRUE;
+
+ if (V4L2_TYPE_IS_MULTIPLANAR(fmt->type))
+ {
+ colorspace = fmt->fmt.pix_mp.colorspace;
+ range = fmt->fmt.pix_mp.quantization;
+ matrix = fmt->fmt.pix_mp.ycbcr_enc;
+ transfer = fmt->fmt.pix_mp.xfer_func;
+ }
+ else
+ {
+ colorspace = fmt->fmt.pix.colorspace;
+ range = fmt->fmt.pix.quantization;
+ matrix = fmt->fmt.pix.ycbcr_enc;
+ transfer = fmt->fmt.pix.xfer_func;
+ }
+
+ /* First step, set the defaults for each primaries */
+ switch (colorspace)
+ {
+ case V4L2_COLORSPACE_SMPTE170M:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+ cinfo->transfer = GST_VIDEO_TRANSFER_BT709;
+ cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_SMPTE170M;
+ break;
+ case V4L2_COLORSPACE_REC709:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT709;
+ cinfo->transfer = GST_VIDEO_TRANSFER_BT709;
+ cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_BT709;
+ break;
+ case V4L2_COLORSPACE_SRGB:
+ case V4L2_COLORSPACE_JPEG:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_0_255;
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+ cinfo->transfer = GST_VIDEO_TRANSFER_SRGB;
+ cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_BT709;
+ break;
+ case V4L2_COLORSPACE_OPRGB:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+ cinfo->transfer = GST_VIDEO_TRANSFER_ADOBERGB;
+ cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_ADOBERGB;
+ break;
+ case V4L2_COLORSPACE_BT2020:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT2020;
+ cinfo->transfer = GST_VIDEO_TRANSFER_BT2020_12;
+ cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_BT2020;
+ break;
+ case V4L2_COLORSPACE_SMPTE240M:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_SMPTE240M;
+ cinfo->transfer = GST_VIDEO_TRANSFER_SMPTE240M;
+ cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_SMPTE240M;
+ break;
+ case V4L2_COLORSPACE_470_SYSTEM_M:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+ cinfo->transfer = GST_VIDEO_TRANSFER_BT709;
+ cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_BT470M;
+ break;
+ case V4L2_COLORSPACE_470_SYSTEM_BG:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+ cinfo->transfer = GST_VIDEO_TRANSFER_BT709;
+ cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_BT470BG;
+ break;
+ case V4L2_COLORSPACE_RAW:
+ /* Explicitly unknown */
+ cinfo->range = GST_VIDEO_COLOR_RANGE_UNKNOWN;
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_UNKNOWN;
+ cinfo->transfer = GST_VIDEO_TRANSFER_UNKNOWN;
+ cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_UNKNOWN;
+ break;
+ default:
+ GST_DEBUG("Unknown enum v4l2_colorspace %d", colorspace);
+ ret = FALSE;
+ break;
+ }
+
+ if (!ret)
+ goto done;
+
+ /* Second step, apply any custom variation */
+ switch (range)
+ {
+ case V4L2_QUANTIZATION_FULL_RANGE:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_0_255;
+ break;
+ case V4L2_QUANTIZATION_LIM_RANGE:
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ break;
+ case V4L2_QUANTIZATION_DEFAULT:
+ /* replicated V4L2_MAP_QUANTIZATION_DEFAULT macro behavior */
+ if (is_rgb && colorspace == V4L2_COLORSPACE_BT2020)
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ else if (is_rgb || matrix == V4L2_YCBCR_ENC_XV601 || matrix == V4L2_YCBCR_ENC_XV709 || colorspace == V4L2_COLORSPACE_JPEG)
+ cinfo->range = GST_VIDEO_COLOR_RANGE_0_255;
+ else
+ cinfo->range = GST_VIDEO_COLOR_RANGE_16_235;
+ break;
+ default:
+ GST_WARNING("Unknown enum v4l2_quantization value %d", range);
+ cinfo->range = GST_VIDEO_COLOR_RANGE_UNKNOWN;
+ break;
+ }
+
+ switch (matrix)
+ {
+ case V4L2_YCBCR_ENC_XV601:
+ case V4L2_YCBCR_ENC_SYCC:
+ GST_FIXME("XV601 and SYCC not defined, assuming 601");
+ /* fallthrough */
+ case V4L2_YCBCR_ENC_601:
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+ break;
+ case V4L2_YCBCR_ENC_XV709:
+ GST_FIXME("XV709 not defined, assuming 709");
+ /* fallthrough */
+ case V4L2_YCBCR_ENC_709:
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT709;
+ break;
+ case V4L2_YCBCR_ENC_BT2020_CONST_LUM:
+ GST_FIXME("BT2020 with constant luma is not defined, assuming BT2020");
+ /* fallthrough */
+ case V4L2_YCBCR_ENC_BT2020:
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT2020;
+ break;
+ case V4L2_YCBCR_ENC_SMPTE240M:
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_SMPTE240M;
+ break;
+ case V4L2_YCBCR_ENC_DEFAULT:
+ /* nothing, just use defaults for colorspace */
+ break;
+ default:
+ GST_WARNING("Unknown enum v4l2_ycbcr_encoding value %d", matrix);
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_UNKNOWN;
+ break;
+ }
+
+ /* Set identity matrix for R'G'B' formats to avoid creating
+ * confusion. This though is cosmetic as it's now properly ignored by
+ * the video info API and videoconvert. */
+ if (is_rgb)
+ cinfo->matrix = GST_VIDEO_COLOR_MATRIX_RGB;
+
+ switch (transfer)
+ {
+ case V4L2_XFER_FUNC_709:
+ if (colorspace == V4L2_COLORSPACE_BT2020 && fmt->fmt.pix.height >= 2160)
+ cinfo->transfer = GST_VIDEO_TRANSFER_BT2020_12;
+ else
+ cinfo->transfer = GST_VIDEO_TRANSFER_BT709;
+ break;
+ case V4L2_XFER_FUNC_SRGB:
+ cinfo->transfer = GST_VIDEO_TRANSFER_SRGB;
+ break;
+ case V4L2_XFER_FUNC_OPRGB:
+ cinfo->transfer = GST_VIDEO_TRANSFER_ADOBERGB;
+ break;
+ case V4L2_XFER_FUNC_SMPTE240M:
+ cinfo->transfer = GST_VIDEO_TRANSFER_SMPTE240M;
+ break;
+ case V4L2_XFER_FUNC_NONE:
+ cinfo->transfer = GST_VIDEO_TRANSFER_GAMMA10;
+ break;
+ case V4L2_XFER_FUNC_DEFAULT:
+ /* nothing, just use defaults for colorspace */
+ break;
+ default:
+ GST_WARNING("Unknown enum v4l2_xfer_func value %d", transfer);
+ cinfo->transfer = GST_VIDEO_TRANSFER_UNKNOWN;
+ break;
+ }
+
+done:
+ return ret;
+}
+
+static int
+gst_aml_v4l2_object_try_fmt(GstAmlV4l2Object *v4l2object,
+ struct v4l2_format *try_fmt)
+{
+ int fd = v4l2object->video_fd;
+ struct v4l2_format fmt;
+ int r;
+
+ memcpy(&fmt, try_fmt, sizeof(fmt));
+ r = v4l2object->ioctl(fd, VIDIOC_TRY_FMT, &fmt);
+
+ if (r < 0 && errno == ENOTTY)
+ {
+ /* The driver might not implement TRY_FMT, in which case we will try
+ S_FMT to probe */
+ if (GST_AML_V4L2_IS_ACTIVE(v4l2object))
+ goto error;
+
+ memcpy(&fmt, try_fmt, sizeof(fmt));
+ r = v4l2object->ioctl(fd, VIDIOC_S_FMT, &fmt);
+ }
+ memcpy(try_fmt, &fmt, sizeof(fmt));
+
+ return r;
+
+error:
+ memcpy(try_fmt, &fmt, sizeof(fmt));
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Unable to try format: %s", g_strerror(errno));
+ return r;
+}
+
+static void
+gst_aml_v4l2_object_add_interlace_mode(GstAmlV4l2Object *v4l2object,
+ GstStructure *s, guint32 width, guint32 height, guint32 pixelformat)
+{
+ struct v4l2_format fmt;
+ GValue interlace_formats = {
+ 0,
+ };
+ enum v4l2_field formats[] = {V4L2_FIELD_NONE, V4L2_FIELD_INTERLACED};
+ gsize i;
+ GstVideoInterlaceMode interlace_mode, prev = -1;
+
+ if (!g_str_equal(gst_structure_get_name(s), "video/x-raw"))
+ return;
+
+ if (v4l2object->never_interlaced)
+ {
+ gst_structure_set(s, "interlace-mode", G_TYPE_STRING, "progressive", NULL);
+ return;
+ }
+
+ g_value_init(&interlace_formats, GST_TYPE_LIST);
+
+ /* Try twice - once for NONE, once for INTERLACED. */
+ for (i = 0; i < G_N_ELEMENTS(formats); i++)
+ {
+ memset(&fmt, 0, sizeof(fmt));
+ fmt.type = v4l2object->type;
+ fmt.fmt.pix.width = width;
+ fmt.fmt.pix.height = height;
+ fmt.fmt.pix.pixelformat = pixelformat;
+ fmt.fmt.pix.field = formats[i];
+
+ if (gst_aml_v4l2_object_try_fmt(v4l2object, &fmt) == 0 &&
+ gst_aml_v4l2_object_get_interlace_mode(fmt.fmt.pix.field, &interlace_mode) && prev != interlace_mode)
+ {
+ GValue interlace_enum = {
+ 0,
+ };
+ const gchar *mode_string;
+ g_value_init(&interlace_enum, G_TYPE_STRING);
+ mode_string = gst_video_interlace_mode_to_string(interlace_mode);
+ g_value_set_string(&interlace_enum, mode_string);
+ gst_value_list_append_and_take_value(&interlace_formats,
+ &interlace_enum);
+ prev = interlace_mode;
+ }
+ }
+
+ if (gst_aml_v4l2src_value_simplify(&interlace_formats) || gst_value_list_get_size(&interlace_formats) > 0)
+ gst_structure_take_value(s, "interlace-mode", &interlace_formats);
+ else
+ GST_WARNING_OBJECT(v4l2object, "Failed to determine interlace mode");
+
+ return;
+}
+
+static void
+gst_aml_v4l2_object_fill_colorimetry_list(GValue *list,
+ GstVideoColorimetry *cinfo)
+{
+ GValue colorimetry = G_VALUE_INIT;
+ guint size;
+ guint i;
+ gboolean found = FALSE;
+
+ g_value_init(&colorimetry, G_TYPE_STRING);
+ g_value_take_string(&colorimetry, gst_video_colorimetry_to_string(cinfo));
+
+ /* only insert if no duplicate */
+ size = gst_value_list_get_size(list);
+ for (i = 0; i < size; i++)
+ {
+ const GValue *tmp;
+
+ tmp = gst_value_list_get_value(list, i);
+ if (gst_value_compare(&colorimetry, tmp) == GST_VALUE_EQUAL)
+ {
+ found = TRUE;
+ break;
+ }
+ }
+
+ if (!found)
+ gst_value_list_append_and_take_value(list, &colorimetry);
+ else
+ g_value_unset(&colorimetry);
+}
+
+static void
+gst_aml_v4l2_object_add_colorspace(GstAmlV4l2Object *v4l2object, GstStructure *s,
+ guint32 width, guint32 height, guint32 pixelformat)
+{
+ struct v4l2_format fmt;
+ GValue list = G_VALUE_INIT;
+ GstVideoColorimetry cinfo;
+ enum v4l2_colorspace req_cspace;
+
+ memset(&fmt, 0, sizeof(fmt));
+ fmt.type = v4l2object->type;
+ fmt.fmt.pix.width = width;
+ fmt.fmt.pix.height = height;
+ fmt.fmt.pix.pixelformat = pixelformat;
+
+ g_value_init(&list, GST_TYPE_LIST);
+
+ /* step 1: get device default colorspace and insert it first as
+ * it should be the preferred one */
+ if (gst_aml_v4l2_object_try_fmt(v4l2object, &fmt) == 0)
+ {
+ if (gst_aml_v4l2_object_get_colorspace(&fmt, &cinfo))
+ gst_aml_v4l2_object_fill_colorimetry_list(&list, &cinfo);
+ }
+
+ /* step 2: probe all colorspace other than default
+ * We don't probe all colorspace, range, matrix and transfer combination to
+ * avoid ioctl flooding which could greatly increase initialization time
+ * with low-speed devices (UVC...) */
+ for (req_cspace = V4L2_COLORSPACE_SMPTE170M;
+ req_cspace <= V4L2_COLORSPACE_RAW; req_cspace++)
+ {
+ /* V4L2_COLORSPACE_BT878 is deprecated and shall not be used, so skip */
+ if (req_cspace == V4L2_COLORSPACE_BT878)
+ continue;
+
+ if (V4L2_TYPE_IS_MULTIPLANAR(v4l2object->type))
+ fmt.fmt.pix_mp.colorspace = req_cspace;
+ else
+ fmt.fmt.pix.colorspace = req_cspace;
+
+ if (gst_aml_v4l2_object_try_fmt(v4l2object, &fmt) == 0)
+ {
+ enum v4l2_colorspace colorspace;
+
+ if (V4L2_TYPE_IS_MULTIPLANAR(v4l2object->type))
+ colorspace = fmt.fmt.pix_mp.colorspace;
+ else
+ colorspace = fmt.fmt.pix.colorspace;
+
+ if (colorspace == req_cspace)
+ {
+ if (gst_aml_v4l2_object_get_colorspace(&fmt, &cinfo))
+ gst_aml_v4l2_object_fill_colorimetry_list(&list, &cinfo);
+ }
+ }
+ }
+
+ if (gst_value_list_get_size(&list) > 0)
+ gst_structure_take_value(s, "colorimetry", &list);
+ else
+ g_value_unset(&list);
+
+ return;
+}
+
+/* The frame interval enumeration code first appeared in Linux 2.6.19. */
+static GstStructure *
+gst_aml_v4l2_object_probe_caps_for_format_and_size(GstAmlV4l2Object *v4l2object,
+ guint32 pixelformat,
+ guint32 width, guint32 height, const GstStructure *template)
+{
+ gint fd = v4l2object->video_fd;
+ struct v4l2_frmivalenum ival;
+ guint32 num, denom;
+ GstStructure *s;
+ GValue rates = {
+ 0,
+ };
+
+ memset(&ival, 0, sizeof(struct v4l2_frmivalenum));
+ ival.index = 0;
+ ival.pixel_format = pixelformat;
+ ival.width = width;
+ ival.height = height;
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj,
+ "get frame interval for %ux%u, %" GST_FOURCC_FORMAT, width, height,
+ GST_FOURCC_ARGS(pixelformat));
+
+ /* keep in mind that v4l2 gives us frame intervals (durations); we invert the
+ * fraction to get framerate */
+ if (v4l2object->ioctl(fd, VIDIOC_ENUM_FRAMEINTERVALS, &ival) < 0)
+ goto enum_frameintervals_failed;
+
+ if (ival.type == V4L2_FRMIVAL_TYPE_DISCRETE)
+ {
+ GValue rate = {
+ 0,
+ };
+
+ g_value_init(&rates, GST_TYPE_LIST);
+ g_value_init(&rate, GST_TYPE_FRACTION);
+
+ do
+ {
+ num = ival.discrete.numerator;
+ denom = ival.discrete.denominator;
+
+ if (num > G_MAXINT || denom > G_MAXINT)
+ {
+ /* let us hope we don't get here... */
+ num >>= 1;
+ denom >>= 1;
+ }
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "adding discrete framerate: %d/%d",
+ denom, num);
+
+ /* swap to get the framerate */
+ gst_value_set_fraction(&rate, denom, num);
+ gst_value_list_append_value(&rates, &rate);
+
+ ival.index++;
+ } while (v4l2object->ioctl(fd, VIDIOC_ENUM_FRAMEINTERVALS, &ival) >= 0);
+ }
+ else if (ival.type == V4L2_FRMIVAL_TYPE_STEPWISE)
+ {
+ GValue min = {
+ 0,
+ };
+ GValue step = {
+ 0,
+ };
+ GValue max = {
+ 0,
+ };
+ gboolean added = FALSE;
+ guint32 minnum, mindenom;
+ guint32 maxnum, maxdenom;
+
+ g_value_init(&rates, GST_TYPE_LIST);
+
+ g_value_init(&min, GST_TYPE_FRACTION);
+ g_value_init(&step, GST_TYPE_FRACTION);
+ g_value_init(&max, GST_TYPE_FRACTION);
+
+ /* get the min */
+ minnum = ival.stepwise.min.numerator;
+ mindenom = ival.stepwise.min.denominator;
+ if (minnum > G_MAXINT || mindenom > G_MAXINT)
+ {
+ minnum >>= 1;
+ mindenom >>= 1;
+ }
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "stepwise min frame interval: %d/%d",
+ minnum, mindenom);
+ gst_value_set_fraction(&min, minnum, mindenom);
+
+ /* get the max */
+ maxnum = ival.stepwise.max.numerator;
+ maxdenom = ival.stepwise.max.denominator;
+ if (maxnum > G_MAXINT || maxdenom > G_MAXINT)
+ {
+ maxnum >>= 1;
+ maxdenom >>= 1;
+ }
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "stepwise max frame interval: %d/%d",
+ maxnum, maxdenom);
+ gst_value_set_fraction(&max, maxnum, maxdenom);
+
+ /* get the step */
+ num = ival.stepwise.step.numerator;
+ denom = ival.stepwise.step.denominator;
+ if (num > G_MAXINT || denom > G_MAXINT)
+ {
+ num >>= 1;
+ denom >>= 1;
+ }
+
+ if (num == 0 || denom == 0)
+ {
+ /* in this case we have a wrong fraction or no step, set the step to max
+ * so that we only add the min value in the loop below */
+ num = maxnum;
+ denom = maxdenom;
+ }
+
+ /* since we only have gst_value_fraction_subtract and not add, negate the
+ * numerator */
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "stepwise step frame interval: %d/%d",
+ num, denom);
+ gst_value_set_fraction(&step, -num, denom);
+
+ while (gst_value_compare(&min, &max) != GST_VALUE_GREATER_THAN)
+ {
+ GValue rate = {
+ 0,
+ };
+
+ num = gst_value_get_fraction_numerator(&min);
+ denom = gst_value_get_fraction_denominator(&min);
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "adding stepwise framerate: %d/%d",
+ denom, num);
+
+ /* invert to get the framerate */
+ g_value_init(&rate, GST_TYPE_FRACTION);
+ gst_value_set_fraction(&rate, denom, num);
+ gst_value_list_append_value(&rates, &rate);
+ added = TRUE;
+
+ /* we're actually adding because step was negated above. This is because
+ * there is no _add function... */
+ if (!gst_value_fraction_subtract(&min, &min, &step))
+ {
+ GST_WARNING_OBJECT(v4l2object->dbg_obj, "could not step fraction!");
+ break;
+ }
+ }
+ if (!added)
+ {
+ /* no range was added, leave the default range from the template */
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "no range added, leaving default");
+ g_value_unset(&rates);
+ }
+ }
+ else if (ival.type == V4L2_FRMIVAL_TYPE_CONTINUOUS)
+ {
+ guint32 maxnum, maxdenom;
+
+ g_value_init(&rates, GST_TYPE_FRACTION_RANGE);
+
+ num = ival.stepwise.min.numerator;
+ denom = ival.stepwise.min.denominator;
+ if (num > G_MAXINT || denom > G_MAXINT)
+ {
+ num >>= 1;
+ denom >>= 1;
+ }
+
+ maxnum = ival.stepwise.max.numerator;
+ maxdenom = ival.stepwise.max.denominator;
+ if (maxnum > G_MAXINT || maxdenom > G_MAXINT)
+ {
+ maxnum >>= 1;
+ maxdenom >>= 1;
+ }
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj,
+ "continuous frame interval %d/%d to %d/%d", maxdenom, maxnum, denom,
+ num);
+
+ gst_value_set_fraction_range_full(&rates, maxdenom, maxnum, denom, num);
+ }
+ else
+ {
+ goto unknown_type;
+ }
+
+return_data:
+ s = gst_structure_copy(template);
+ gst_structure_set(s, "width", G_TYPE_INT, (gint)width,
+ "height", G_TYPE_INT, (gint)height, NULL);
+
+ gst_aml_v4l2_object_add_aspect_ratio(v4l2object, s);
+
+ if (!v4l2object->skip_try_fmt_probes)
+ {
+ gst_aml_v4l2_object_add_interlace_mode(v4l2object, s, width, height,
+ pixelformat);
+ gst_aml_v4l2_object_add_colorspace(v4l2object, s, width, height, pixelformat);
+ }
+
+ if (G_IS_VALUE(&rates))
+ {
+ gst_aml_v4l2src_value_simplify(&rates);
+ /* only change the framerate on the template when we have a valid probed new
+ * value */
+ gst_structure_take_value(s, "framerate", &rates);
+ }
+ else if (v4l2object->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ v4l2object->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ {
+ gst_structure_set(s, "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT,
+ 1, NULL);
+ }
+ return s;
+
+ /* ERRORS */
+enum_frameintervals_failed:
+{
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "Unable to enumerate intervals for %" GST_FOURCC_FORMAT "@%ux%u",
+ GST_FOURCC_ARGS(pixelformat), width, height);
+ goto return_data;
+}
+unknown_type:
+{
+ /* I don't see how this is actually an error, we ignore the format then */
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Unknown frame interval type at %" GST_FOURCC_FORMAT "@%ux%u: %u",
+ GST_FOURCC_ARGS(pixelformat), width, height, ival.type);
+ return NULL;
+}
+}
+
+static gint
+sort_by_frame_size(GstStructure *s1, GstStructure *s2)
+{
+ int w1, h1, w2, h2;
+
+ gst_structure_get_int(s1, "width", &w1);
+ gst_structure_get_int(s1, "height", &h1);
+ gst_structure_get_int(s2, "width", &w2);
+ gst_structure_get_int(s2, "height", &h2);
+
+ /* I think it's safe to assume that this won't overflow for a while */
+ return ((w2 * h2) - (w1 * h1));
+}
+
+static void
+gst_aml_v4l2_object_update_and_append(GstAmlV4l2Object *v4l2object,
+ guint32 format, GstCaps *caps, GstStructure *s)
+{
+ GstStructure *alt_s = NULL;
+
+ /* Encoded stream on output buffer need to be parsed */
+ if (v4l2object->type == V4L2_BUF_TYPE_VIDEO_OUTPUT ||
+ v4l2object->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ {
+ gint i = 0;
+
+ for (; i < GST_AML_V4L2_FORMAT_COUNT; i++)
+ {
+ if (format == gst_aml_v4l2_formats[i].format &&
+ gst_aml_v4l2_formats[i].flags & GST_V4L2_CODEC &&
+ !(gst_aml_v4l2_formats[i].flags & GST_V4L2_NO_PARSE))
+ {
+ gst_structure_set(s, "parsed", G_TYPE_BOOLEAN, TRUE, NULL);
+ break;
+ }
+ }
+ }
+
+ if (v4l2object->has_alpha_component &&
+ (v4l2object->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ v4l2object->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE))
+ {
+ switch (format)
+ {
+ case V4L2_PIX_FMT_RGB32:
+ alt_s = gst_structure_copy(s);
+ gst_structure_set(alt_s, "format", G_TYPE_STRING, "ARGB", NULL);
+ break;
+ case V4L2_PIX_FMT_BGR32:
+ alt_s = gst_structure_copy(s);
+ gst_structure_set(alt_s, "format", G_TYPE_STRING, "BGRA", NULL);
+ break;
+ default:
+ break;
+ }
+ }
+
+ gst_caps_append_structure(caps, s);
+
+ if (alt_s)
+ gst_caps_append_structure(caps, alt_s);
+}
+
+static GstCaps *
+gst_aml_v4l2_object_probe_caps_for_format(GstAmlV4l2Object *v4l2object,
+ guint32 pixelformat, const GstStructure *template)
+{
+ GstCaps *ret = gst_caps_new_empty();
+ GstStructure *tmp;
+ gint fd = v4l2object->video_fd;
+ struct v4l2_frmsizeenum size;
+ GList *results = NULL;
+ guint32 w, h;
+
+ if (pixelformat == GST_MAKE_FOURCC('M', 'P', 'E', 'G'))
+ {
+ gst_caps_append_structure(ret, gst_structure_copy(template));
+ return ret;
+ }
+
+ memset(&size, 0, sizeof(struct v4l2_frmsizeenum));
+ size.index = 0;
+ size.pixel_format = pixelformat;
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "Enumerating frame sizes for %" GST_FOURCC_FORMAT,
+ GST_FOURCC_ARGS(pixelformat));
+
+ if (v4l2object->ioctl(fd, VIDIOC_ENUM_FRAMESIZES, &size) < 0)
+ goto enum_framesizes_failed;
+
+ if (size.type == V4L2_FRMSIZE_TYPE_DISCRETE)
+ {
+ do
+ {
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "got discrete frame size %dx%d",
+ size.discrete.width, size.discrete.height);
+
+ w = MIN(size.discrete.width, G_MAXINT);
+ h = MIN(size.discrete.height, G_MAXINT);
+
+ if (w && h)
+ {
+ tmp =
+ gst_aml_v4l2_object_probe_caps_for_format_and_size(v4l2object,
+ pixelformat, w, h, template);
+
+ if (tmp)
+ results = g_list_prepend(results, tmp);
+ }
+
+ size.index++;
+ } while (v4l2object->ioctl(fd, VIDIOC_ENUM_FRAMESIZES, &size) >= 0);
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "done iterating discrete frame sizes");
+ }
+ else if (size.type == V4L2_FRMSIZE_TYPE_STEPWISE)
+ {
+ guint32 maxw, maxh, step_w, step_h;
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "we have stepwise frame sizes:");
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "min width: %d",
+ size.stepwise.min_width);
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "min height: %d",
+ size.stepwise.min_height);
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "max width: %d",
+ size.stepwise.max_width);
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "min height: %d",
+ size.stepwise.max_height);
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "step width: %d",
+ size.stepwise.step_width);
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "step height: %d",
+ size.stepwise.step_height);
+
+ w = MAX(size.stepwise.min_width, 1);
+ h = MAX(size.stepwise.min_height, 1);
+ maxw = MIN(size.stepwise.max_width, G_MAXINT);
+ maxh = MIN(size.stepwise.max_height, G_MAXINT);
+
+ step_w = MAX(size.stepwise.step_width, 1);
+ step_h = MAX(size.stepwise.step_height, 1);
+
+ /* FIXME: check for sanity and that min/max are multiples of the steps */
+
+ /* we only query details for the max width/height since it's likely the
+ * most restricted if there are any resolution-dependent restrictions */
+ tmp = gst_aml_v4l2_object_probe_caps_for_format_and_size(v4l2object,
+ pixelformat, maxw, maxh, template);
+
+ if (tmp)
+ {
+ GValue step_range = G_VALUE_INIT;
+
+ g_value_init(&step_range, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range_step(&step_range, w, maxw, step_w);
+ gst_structure_set_value(tmp, "width", &step_range);
+
+ gst_value_set_int_range_step(&step_range, h, maxh, step_h);
+ gst_structure_take_value(tmp, "height", &step_range);
+
+ /* no point using the results list here, since there's only one struct */
+ gst_aml_v4l2_object_update_and_append(v4l2object, pixelformat, ret, tmp);
+ }
+ }
+ else if (size.type == V4L2_FRMSIZE_TYPE_CONTINUOUS)
+ {
+ guint32 maxw, maxh;
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "we have continuous frame sizes:");
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "min width: %d",
+ size.stepwise.min_width);
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "min height: %d",
+ size.stepwise.min_height);
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "max width: %d",
+ size.stepwise.max_width);
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "min height: %d",
+ size.stepwise.max_height);
+
+ w = MAX(size.stepwise.min_width, 1);
+ h = MAX(size.stepwise.min_height, 1);
+ maxw = MIN(size.stepwise.max_width, G_MAXINT);
+ maxh = MIN(size.stepwise.max_height, G_MAXINT);
+
+ tmp =
+ gst_aml_v4l2_object_probe_caps_for_format_and_size(v4l2object, pixelformat,
+ w, h, template);
+ if (tmp)
+ {
+ gst_structure_set(tmp, "width", GST_TYPE_INT_RANGE, (gint)w,
+ (gint)maxw, "height", GST_TYPE_INT_RANGE, (gint)h, (gint)maxh,
+ NULL);
+
+ /* no point using the results list here, since there's only one struct */
+ gst_aml_v4l2_object_update_and_append(v4l2object, pixelformat, ret, tmp);
+ }
+ }
+ else
+ {
+ goto unknown_type;
+ }
+
+ /* we use an intermediary list to store and then sort the results of the
+ * probing because we can't make any assumptions about the order in which
+ * the driver will give us the sizes, but we want the final caps to contain
+ * the results starting with the highest resolution and having the lowest
+ * resolution last, since order in caps matters for things like fixation. */
+ results = g_list_sort(results, (GCompareFunc)sort_by_frame_size);
+ while (results != NULL)
+ {
+ gst_aml_v4l2_object_update_and_append(v4l2object, pixelformat, ret,
+ results->data);
+ results = g_list_delete_link(results, results);
+ }
+
+ if (gst_caps_is_empty(ret))
+ goto enum_framesizes_no_results;
+
+ return ret;
+
+ /* ERRORS */
+enum_framesizes_failed:
+{
+ /* I don't see how this is actually an error */
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "Failed to enumerate frame sizes for pixelformat %" GST_FOURCC_FORMAT
+ " (%s)",
+ GST_FOURCC_ARGS(pixelformat), g_strerror(errno));
+ goto default_frame_sizes;
+}
+enum_framesizes_no_results:
+{
+ /* it's possible that VIDIOC_ENUM_FRAMESIZES is defined but the driver in
+ * question doesn't actually support it yet */
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "No results for pixelformat %" GST_FOURCC_FORMAT
+ " enumerating frame sizes, trying fallback",
+ GST_FOURCC_ARGS(pixelformat));
+ goto default_frame_sizes;
+}
+unknown_type:
+{
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Unknown frame sizeenum type for pixelformat %" GST_FOURCC_FORMAT
+ ": %u",
+ GST_FOURCC_ARGS(pixelformat), size.type);
+ goto default_frame_sizes;
+}
+
+default_frame_sizes:
+{
+ gint min_w, max_w, min_h, max_h, fix_num = 0, fix_denom = 0;
+
+ /* This code is for Linux < 2.6.19 */
+ min_w = min_h = 1;
+ max_w = max_h = GST_AML_V4L2_MAX_SIZE;
+ if (!gst_aml_v4l2_object_get_nearest_size(v4l2object, pixelformat, &min_w,
+ &min_h))
+ {
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Could not probe minimum capture size for pixelformat %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS(pixelformat));
+ }
+ if (!gst_aml_v4l2_object_get_nearest_size(v4l2object, pixelformat, &max_w,
+ &max_h))
+ {
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Could not probe maximum capture size for pixelformat %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS(pixelformat));
+ }
+
+ tmp = gst_structure_copy(template);
+ if (fix_num)
+ {
+ gst_structure_set(tmp, "framerate", GST_TYPE_FRACTION, fix_num,
+ fix_denom, NULL);
+ }
+ else if (v4l2object->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ v4l2object->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ {
+ /* if norm can't be used, copy the template framerate */
+ gst_structure_set(tmp, "framerate", GST_TYPE_FRACTION_RANGE, 0, 1,
+ G_MAXINT, 1, NULL);
+ }
+
+ if (min_w == max_w)
+ gst_structure_set(tmp, "width", G_TYPE_INT, max_w, NULL);
+ else
+ gst_structure_set(tmp, "width", GST_TYPE_INT_RANGE, min_w, max_w, NULL);
+
+ if (min_h == max_h)
+ gst_structure_set(tmp, "height", G_TYPE_INT, max_h, NULL);
+ else
+ gst_structure_set(tmp, "height", GST_TYPE_INT_RANGE, min_h, max_h, NULL);
+
+ gst_aml_v4l2_object_add_aspect_ratio(v4l2object, tmp);
+
+ if (!v4l2object->skip_try_fmt_probes)
+ {
+ /* We could consider setting interlace mode from min and max. */
+ gst_aml_v4l2_object_add_interlace_mode(v4l2object, tmp, max_w, max_h,
+ pixelformat);
+ /* We could consider to check colorspace for min too, in case it depends on
+ * the size. But in this case, min and max could not be enough */
+ gst_aml_v4l2_object_add_colorspace(v4l2object, tmp, max_w, max_h,
+ pixelformat);
+ }
+
+ gst_aml_v4l2_object_update_and_append(v4l2object, pixelformat, ret, tmp);
+ return ret;
+}
+}
+
+static gboolean
+gst_aml_v4l2_object_get_nearest_size(GstAmlV4l2Object *v4l2object,
+ guint32 pixelformat, gint *width, gint *height)
+{
+ struct v4l2_format fmt;
+ gboolean ret = FALSE;
+ GstVideoInterlaceMode interlace_mode;
+
+ g_return_val_if_fail(width != NULL, FALSE);
+ g_return_val_if_fail(height != NULL, FALSE);
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj,
+ "getting nearest size to %dx%d with format %" GST_FOURCC_FORMAT,
+ *width, *height, GST_FOURCC_ARGS(pixelformat));
+
+ memset(&fmt, 0, sizeof(struct v4l2_format));
+
+ /* get size delimiters */
+ memset(&fmt, 0, sizeof(fmt));
+ fmt.type = v4l2object->type;
+ fmt.fmt.pix.width = *width;
+ fmt.fmt.pix.height = *height;
+ fmt.fmt.pix.pixelformat = pixelformat;
+ fmt.fmt.pix.field = V4L2_FIELD_ANY;
+
+ if (gst_aml_v4l2_object_try_fmt(v4l2object, &fmt) < 0)
+ goto error;
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj,
+ "got nearest size %dx%d", fmt.fmt.pix.width, fmt.fmt.pix.height);
+
+ *width = fmt.fmt.pix.width;
+ *height = fmt.fmt.pix.height;
+
+ if (!gst_aml_v4l2_object_get_interlace_mode(fmt.fmt.pix.field, &interlace_mode))
+ {
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Unsupported field type for %" GST_FOURCC_FORMAT "@%ux%u: %u",
+ GST_FOURCC_ARGS(pixelformat), *width, *height, fmt.fmt.pix.field);
+ goto error;
+ }
+
+ ret = TRUE;
+
+error:
+ if (!ret)
+ {
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Unable to try format: %s", g_strerror(errno));
+ }
+
+ return ret;
+}
+
+static gboolean
+gst_aml_v4l2_object_is_dmabuf_supported(GstAmlV4l2Object *v4l2object)
+{
+ gboolean ret = TRUE;
+ struct v4l2_exportbuffer expbuf = {
+ .type = v4l2object->type,
+ .index = -1,
+ .plane = -1,
+ .flags = O_CLOEXEC | O_RDWR,
+ };
+
+ if (v4l2object->fmtdesc->flags & V4L2_FMT_FLAG_EMULATED)
+ {
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "libv4l2 converter detected, disabling DMABuf");
+ ret = FALSE;
+ }
+
+ /* Expected to fail, but ENOTTY tells us that it is not implemented. */
+ v4l2object->ioctl(v4l2object->video_fd, VIDIOC_EXPBUF, &expbuf);
+ if (errno == ENOTTY)
+ ret = FALSE;
+
+ return ret;
+}
+
+static gboolean
+gst_aml_v4l2_object_setup_pool(GstAmlV4l2Object *v4l2object, GstCaps *caps)
+{
+ GstAmlV4l2IOMode mode;
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "initializing the %s system",
+ V4L2_TYPE_IS_OUTPUT(v4l2object->type) ? "output" : "capture");
+
+ GST_AML_V4L2_CHECK_OPEN(v4l2object);
+ GST_AML_V4L2_CHECK_NOT_ACTIVE(v4l2object);
+
+ /* find transport */
+ mode = v4l2object->req_mode;
+
+ if (v4l2object->device_caps & V4L2_CAP_READWRITE)
+ {
+ if (v4l2object->req_mode == GST_V4L2_IO_AUTO)
+ mode = GST_V4L2_IO_RW;
+ }
+ else if (v4l2object->req_mode == GST_V4L2_IO_RW)
+ goto method_not_supported;
+
+ if (v4l2object->device_caps & V4L2_CAP_STREAMING)
+ {
+ if (v4l2object->req_mode == GST_V4L2_IO_AUTO)
+ {
+ if (!V4L2_TYPE_IS_OUTPUT(v4l2object->type) &&
+ gst_aml_v4l2_object_is_dmabuf_supported(v4l2object))
+ {
+ mode = GST_V4L2_IO_DMABUF;
+ }
+ else
+ {
+ mode = GST_V4L2_IO_MMAP;
+ }
+ }
+ }
+ else if (v4l2object->req_mode == GST_V4L2_IO_MMAP ||
+ v4l2object->req_mode == GST_V4L2_IO_DMABUF)
+ goto method_not_supported;
+
+ /* if still no transport selected, error out */
+ if (mode == GST_V4L2_IO_AUTO)
+ goto no_supported_capture_method;
+
+ GST_INFO_OBJECT(v4l2object->dbg_obj, "accessing buffers via mode %d", mode);
+ v4l2object->mode = mode;
+
+ /* If min_buffers is not set, the driver either does not support the control or
+ it has not been asked yet via propose_allocation/decide_allocation. */
+ if (!v4l2object->min_buffers)
+ gst_aml_v4l2_get_driver_min_buffers(v4l2object);
+
+ /* Map the buffers */
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "initiating buffer pool");
+
+ if (!(v4l2object->pool = gst_aml_v4l2_buffer_pool_new(v4l2object, caps)))
+ goto buffer_pool_new_failed;
+
+ GST_AML_V4L2_SET_ACTIVE(v4l2object);
+
+ return TRUE;
+
+ /* ERRORS */
+buffer_pool_new_failed:
+{
+ GST_ELEMENT_ERROR(v4l2object->element, RESOURCE, READ,
+ (_("Could not map buffers from device '%s'"),
+ v4l2object->videodev),
+ ("Failed to create buffer pool: %s", g_strerror(errno)));
+ return FALSE;
+}
+method_not_supported:
+{
+ GST_ELEMENT_ERROR(v4l2object->element, RESOURCE, READ,
+ (_("The driver of device '%s' does not support the IO method %d"),
+ v4l2object->videodev, mode),
+ (NULL));
+ return FALSE;
+}
+no_supported_capture_method:
+{
+ GST_ELEMENT_ERROR(v4l2object->element, RESOURCE, READ,
+ (_("The driver of device '%s' does not support any known IO "
+ "method."),
+ v4l2object->videodev),
+ (NULL));
+ return FALSE;
+}
+}
+
+static void
+gst_aml_v4l2_object_set_stride(GstVideoInfo *info, GstVideoAlignment *align,
+ gint plane, gint stride)
+{
+ const GstVideoFormatInfo *finfo = info->finfo;
+
+ if (GST_VIDEO_FORMAT_INFO_IS_TILED(finfo))
+ {
+ gint x_tiles, y_tiles, ws, hs, tile_height, padded_height;
+
+ ws = GST_VIDEO_FORMAT_INFO_TILE_WS(finfo);
+ hs = GST_VIDEO_FORMAT_INFO_TILE_HS(finfo);
+ tile_height = 1 << hs;
+
+ padded_height = GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT(finfo, plane,
+ info->height + align->padding_top + align->padding_bottom);
+ padded_height = GST_ROUND_UP_N(padded_height, tile_height);
+
+ x_tiles = stride >> ws;
+ y_tiles = padded_height >> hs;
+ info->stride[plane] = GST_VIDEO_TILE_MAKE_STRIDE(x_tiles, y_tiles);
+ }
+ else
+ {
+ info->stride[plane] = stride;
+ }
+}
+
+static void
+gst_aml_v4l2_object_extrapolate_info(GstAmlV4l2Object *v4l2object,
+ GstVideoInfo *info, GstVideoAlignment *align, gint stride)
+{
+ const GstVideoFormatInfo *finfo = info->finfo;
+ gint i, estride, padded_height;
+ gsize offs = 0;
+
+ g_return_if_fail(v4l2object->n_v4l2_planes == 1);
+
+ padded_height = info->height + align->padding_top + align->padding_bottom;
+
+ for (i = 0; i < finfo->n_planes; i++)
+ {
+ estride = gst_aml_v4l2_object_extrapolate_stride(finfo, i, stride);
+
+ gst_aml_v4l2_object_set_stride(info, align, i, estride);
+
+ info->offset[i] = offs;
+ offs += estride *
+ GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT(finfo, i, padded_height);
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "Extrapolated for plane %d with base stride %d: "
+ "stride %d, offset %" G_GSIZE_FORMAT,
+ i, stride, info->stride[i],
+ info->offset[i]);
+ }
+
+ /* Update the image size according the amount of data we are going to
+ * read/write. This workaround bugs in driver where the sizeimage provided
+ * by TRY/S_FMT represent the buffer length (maximum size) rather then the expected
+ * bytesused (buffer size). */
+ if (offs < info->size)
+ info->size = offs;
+}
+
+static void
+gst_aml_v4l2_object_save_format(GstAmlV4l2Object *v4l2object,
+ struct v4l2_fmtdesc *fmtdesc, struct v4l2_format *format,
+ GstVideoInfo *info, GstVideoAlignment *align)
+{
+ const GstVideoFormatInfo *finfo = info->finfo;
+ gboolean standard_stride = TRUE;
+ gint stride, pstride, padded_width, padded_height, i;
+
+ if (GST_VIDEO_INFO_FORMAT(info) == GST_VIDEO_FORMAT_ENCODED)
+ {
+ v4l2object->n_v4l2_planes = 1;
+ info->size = format->fmt.pix.sizeimage;
+ goto store_info;
+ }
+
+ /* adjust right padding */
+ if (V4L2_TYPE_IS_MULTIPLANAR(v4l2object->type))
+ stride = format->fmt.pix_mp.plane_fmt[0].bytesperline;
+ else
+ stride = format->fmt.pix.bytesperline;
+
+ pstride = GST_VIDEO_FORMAT_INFO_PSTRIDE(finfo, 0);
+ if (pstride)
+ {
+ padded_width = stride / pstride;
+ }
+ else
+ {
+ /* pstride can be 0 for complex formats */
+ GST_WARNING_OBJECT(v4l2object->element,
+ "format %s has a pstride of 0, cannot compute padded with",
+ gst_video_format_to_string(GST_VIDEO_INFO_FORMAT(info)));
+ padded_width = stride;
+ }
+
+ if (padded_width < format->fmt.pix.width)
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Driver bug detected, stride (%d) is too small for the width (%d)",
+ padded_width, format->fmt.pix.width);
+
+ align->padding_right = padded_width - info->width - align->padding_left;
+
+ /* adjust bottom padding */
+ padded_height = format->fmt.pix.height;
+
+ if (GST_VIDEO_FORMAT_INFO_IS_TILED(finfo))
+ {
+ guint hs, tile_height;
+
+ hs = GST_VIDEO_FORMAT_INFO_TILE_HS(finfo);
+ tile_height = 1 << hs;
+
+ padded_height = GST_ROUND_UP_N(padded_height, tile_height);
+ }
+
+ align->padding_bottom = padded_height - info->height - align->padding_top;
+
+ /* setup the strides and offset */
+ if (V4L2_TYPE_IS_MULTIPLANAR(v4l2object->type))
+ {
+ struct v4l2_pix_format_mplane *pix_mp = &format->fmt.pix_mp;
+
+ /* figure out the frame layout */
+ v4l2object->n_v4l2_planes = MAX(1, pix_mp->num_planes);
+ info->size = 0;
+ for (i = 0; i < v4l2object->n_v4l2_planes; i++)
+ {
+ stride = pix_mp->plane_fmt[i].bytesperline;
+
+ if (info->stride[i] != stride)
+ standard_stride = FALSE;
+
+ gst_aml_v4l2_object_set_stride(info, align, i, stride);
+ info->offset[i] = info->size;
+ info->size += pix_mp->plane_fmt[i].sizeimage;
+ }
+
+ /* Extrapolate stride if planar format are being set in 1 v4l2 plane */
+ if (v4l2object->n_v4l2_planes < finfo->n_planes)
+ {
+ stride = format->fmt.pix_mp.plane_fmt[0].bytesperline;
+ gst_aml_v4l2_object_extrapolate_info(v4l2object, info, align, stride);
+ }
+ }
+ else
+ {
+ /* only one plane in non-MPLANE mode */
+ v4l2object->n_v4l2_planes = 1;
+ info->size = format->fmt.pix.sizeimage;
+ stride = format->fmt.pix.bytesperline;
+
+ if (info->stride[0] != stride)
+ standard_stride = FALSE;
+
+ gst_aml_v4l2_object_extrapolate_info(v4l2object, info, align, stride);
+ }
+
+ /* adjust the offset to take into account left and top */
+ if (GST_VIDEO_FORMAT_INFO_IS_TILED(finfo))
+ {
+ if ((align->padding_left + align->padding_top) > 0)
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Left and top padding is not permitted for tiled formats");
+ }
+ else
+ {
+ for (i = 0; i < finfo->n_planes; i++)
+ {
+ gint vedge, hedge;
+
+ /* FIXME we assume plane as component as this is true for all supported
+ * format we support. */
+
+ hedge = GST_VIDEO_FORMAT_INFO_SCALE_WIDTH(finfo, i, align->padding_left);
+ vedge = GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT(finfo, i, align->padding_top);
+
+ info->offset[i] += (vedge * info->stride[i]) +
+ (hedge * GST_VIDEO_INFO_COMP_PSTRIDE(info, i));
+ }
+ }
+
+store_info:
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Got sizeimage %" G_GSIZE_FORMAT,
+ info->size);
+
+ /* to avoid copies we need video meta if there is padding */
+ v4l2object->need_video_meta =
+ ((align->padding_top + align->padding_left + align->padding_right +
+ align->padding_bottom) != 0);
+
+ /* ... or if stride is non "standard" */
+ if (!standard_stride)
+ v4l2object->need_video_meta = TRUE;
+
+ /* ... or also video meta if we use multiple, non-contiguous, planes */
+ if (v4l2object->n_v4l2_planes > 1)
+ v4l2object->need_video_meta = TRUE;
+
+ v4l2object->info = *info;
+ v4l2object->align = *align;
+ v4l2object->format = *format;
+ v4l2object->fmtdesc = fmtdesc;
+
+ /* if we have a framerate pre-calculate duration */
+ if (info->fps_n > 0 && info->fps_d > 0)
+ {
+ v4l2object->duration = gst_util_uint64_scale_int(GST_SECOND, info->fps_d,
+ info->fps_n);
+ }
+ else
+ {
+ v4l2object->duration = GST_CLOCK_TIME_NONE;
+ }
+}
+
+gint gst_aml_v4l2_object_extrapolate_stride(const GstVideoFormatInfo *finfo,
+ gint plane, gint stride)
+{
+ gint estride;
+
+ switch (finfo->format)
+ {
+ case GST_VIDEO_FORMAT_NV12:
+ case GST_VIDEO_FORMAT_NV12_64Z32:
+ case GST_VIDEO_FORMAT_NV21:
+ case GST_VIDEO_FORMAT_NV16:
+ case GST_VIDEO_FORMAT_NV61:
+ case GST_VIDEO_FORMAT_NV24:
+ estride = (plane == 0 ? 1 : 2) *
+ GST_VIDEO_FORMAT_INFO_SCALE_WIDTH(finfo, plane, stride);
+ break;
+ default:
+ estride = GST_VIDEO_FORMAT_INFO_SCALE_WIDTH(finfo, plane, stride);
+ break;
+ }
+
+ return estride;
+}
+
+static gboolean
+gst_aml_v4l2_video_colorimetry_matches(const GstVideoColorimetry *cinfo,
+ const gchar *color)
+{
+ GstVideoColorimetry ci;
+ static const GstVideoColorimetry ci_likely_jpeg = {
+ GST_VIDEO_COLOR_RANGE_0_255, GST_VIDEO_COLOR_MATRIX_BT601,
+ GST_VIDEO_TRANSFER_UNKNOWN, GST_VIDEO_COLOR_PRIMARIES_UNKNOWN};
+ static const GstVideoColorimetry ci_jpeg = {
+ GST_VIDEO_COLOR_RANGE_0_255, GST_VIDEO_COLOR_MATRIX_BT601,
+ GST_VIDEO_TRANSFER_SRGB, GST_VIDEO_COLOR_PRIMARIES_BT709};
+
+ if (!gst_video_colorimetry_from_string(&ci, color))
+ return FALSE;
+
+ if (gst_video_colorimetry_is_equal(&ci, cinfo))
+ return TRUE;
+
+ /* Allow 1:4:0:0 (produced by jpegdec) if the device expects 1:4:7:1 */
+ if (gst_video_colorimetry_is_equal(&ci, &ci_likely_jpeg) && gst_video_colorimetry_is_equal(cinfo, &ci_jpeg))
+ return TRUE;
+
+ return FALSE;
+}
+
+static void
+set_amlogic_vdec_parm(GstAmlV4l2Object *v4l2object, struct v4l2_streamparm *streamparm)
+{
+ struct aml_dec_params *decParm = (struct aml_dec_params *)streamparm->parm.raw_data;
+ const char *env;
+
+ decParm->cfg.metadata_config_flag = 1 << 13;
+
+ if (v4l2object->type == V4L2_BUF_TYPE_VIDEO_OUTPUT || v4l2object->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ {
+ env = getenv("V4L2_SET_AMLOGIC_DW_MODE");
+ if (env)
+ {
+ int dwMode = atoi(env);
+ switch (dwMode)
+ {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 16:
+ decParm->cfg.double_write_mode = dwMode;
+ decParm->parms_status |= V4L2_CONFIG_PARM_DECODE_CFGINFO;
+ break;
+ }
+ }
+
+ if (v4l2object->ioctl(v4l2object->video_fd, VIDIOC_S_PARM, streamparm) < 0)
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "set vdec parm fail");
+ }
+ else
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Set dwMode to %d", decParm->cfg.double_write_mode);
+ }
+ }
+}
+
+static gboolean
+gst_aml_v4l2_object_set_format_full(GstAmlV4l2Object *v4l2object, GstCaps *caps,
+ gboolean try_only, GstAmlV4l2Error *error)
+{
+ gint fd = v4l2object->video_fd;
+ struct v4l2_format format;
+ struct v4l2_streamparm streamparm;
+ enum v4l2_field field;
+ guint32 pixelformat;
+ struct v4l2_fmtdesc *fmtdesc;
+ GstVideoInfo info;
+ GstVideoAlignment align;
+ gint width, height, fps_n, fps_d;
+ gint n_v4l_planes;
+ gint i = 0;
+ gboolean is_mplane;
+ enum v4l2_colorspace colorspace = 0;
+ enum v4l2_quantization range = 0;
+ enum v4l2_ycbcr_encoding matrix = 0;
+ enum v4l2_xfer_func transfer = 0;
+ GstStructure *s;
+ gboolean disable_colorimetry = FALSE;
+
+ g_return_val_if_fail(!v4l2object->skip_try_fmt_probes ||
+ gst_caps_is_writable(caps),
+ FALSE);
+
+ GST_AML_V4L2_CHECK_OPEN(v4l2object);
+ if (!try_only)
+ GST_AML_V4L2_CHECK_NOT_ACTIVE(v4l2object);
+
+ memset(&streamparm, 0x00, sizeof(struct v4l2_streamparm));
+ streamparm.type = v4l2object->type;
+ set_amlogic_vdec_parm(v4l2object, &streamparm);
+
+ is_mplane = V4L2_TYPE_IS_MULTIPLANAR(v4l2object->type);
+
+ gst_video_info_init(&info);
+ gst_video_alignment_reset(&align);
+
+ if (!gst_aml_v4l2_object_get_caps_info(v4l2object, caps, &fmtdesc, &info))
+ goto invalid_caps;
+
+ pixelformat = fmtdesc->pixelformat;
+ width = GST_VIDEO_INFO_WIDTH(&info);
+ height = GST_VIDEO_INFO_HEIGHT(&info);
+ fps_n = GST_VIDEO_INFO_FPS_N(&info);
+ fps_d = GST_VIDEO_INFO_FPS_D(&info);
+
+ /* if encoded format (GST_VIDEO_INFO_N_PLANES return 0)
+ * or if contiguous is prefered */
+ n_v4l_planes = GST_VIDEO_INFO_N_PLANES(&info);
+ if (!n_v4l_planes || !v4l2object->prefered_non_contiguous)
+ n_v4l_planes = 1;
+
+ if (GST_VIDEO_INFO_IS_INTERLACED(&info))
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "interlaced video");
+ /* ideally we would differentiate between types of interlaced video
+ * but there is not sufficient information in the caps..
+ */
+ field = V4L2_FIELD_INTERLACED;
+ }
+ else
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "progressive video");
+ field = V4L2_FIELD_NONE;
+ }
+
+ /* We first pick the main colorspace from the primaries */
+ switch (info.colorimetry.primaries)
+ {
+ case GST_VIDEO_COLOR_PRIMARIES_BT709:
+ /* There is two colorspaces using these primaries, use the range to
+ * differentiate */
+ if (info.colorimetry.range == GST_VIDEO_COLOR_RANGE_16_235)
+ colorspace = V4L2_COLORSPACE_REC709;
+ else
+ colorspace = V4L2_COLORSPACE_SRGB;
+ break;
+ case GST_VIDEO_COLOR_PRIMARIES_BT2020:
+ colorspace = V4L2_COLORSPACE_BT2020;
+ break;
+ case GST_VIDEO_COLOR_PRIMARIES_BT470M:
+ colorspace = V4L2_COLORSPACE_470_SYSTEM_M;
+ break;
+ case GST_VIDEO_COLOR_PRIMARIES_BT470BG:
+ colorspace = V4L2_COLORSPACE_470_SYSTEM_BG;
+ break;
+ case GST_VIDEO_COLOR_PRIMARIES_SMPTE170M:
+ colorspace = V4L2_COLORSPACE_SMPTE170M;
+ break;
+ case GST_VIDEO_COLOR_PRIMARIES_SMPTE240M:
+ colorspace = V4L2_COLORSPACE_SMPTE240M;
+ break;
+
+ case GST_VIDEO_COLOR_PRIMARIES_FILM:
+ case GST_VIDEO_COLOR_PRIMARIES_UNKNOWN:
+ /* We don't know, we will guess */
+ break;
+
+ default:
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Unknown colorimetry primaries %d", info.colorimetry.primaries);
+ break;
+ }
+
+ switch (info.colorimetry.range)
+ {
+ case GST_VIDEO_COLOR_RANGE_0_255:
+ range = V4L2_QUANTIZATION_FULL_RANGE;
+ break;
+ case GST_VIDEO_COLOR_RANGE_16_235:
+ range = V4L2_QUANTIZATION_LIM_RANGE;
+ break;
+ case GST_VIDEO_COLOR_RANGE_UNKNOWN:
+ /* We let the driver pick a default one */
+ break;
+ default:
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Unknown colorimetry range %d", info.colorimetry.range);
+ break;
+ }
+
+ switch (info.colorimetry.matrix)
+ {
+ case GST_VIDEO_COLOR_MATRIX_RGB:
+ /* Unspecified, leave to default */
+ break;
+ /* FCC is about the same as BT601 with less digit */
+ case GST_VIDEO_COLOR_MATRIX_FCC:
+ case GST_VIDEO_COLOR_MATRIX_BT601:
+ matrix = V4L2_YCBCR_ENC_601;
+ break;
+ case GST_VIDEO_COLOR_MATRIX_BT709:
+ matrix = V4L2_YCBCR_ENC_709;
+ break;
+ case GST_VIDEO_COLOR_MATRIX_SMPTE240M:
+ matrix = V4L2_YCBCR_ENC_SMPTE240M;
+ break;
+ case GST_VIDEO_COLOR_MATRIX_BT2020:
+ matrix = V4L2_YCBCR_ENC_BT2020;
+ break;
+ case GST_VIDEO_COLOR_MATRIX_UNKNOWN:
+ /* We let the driver pick a default one */
+ break;
+ default:
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Unknown colorimetry matrix %d", info.colorimetry.matrix);
+ break;
+ }
+
+ switch (info.colorimetry.transfer)
+ {
+ case GST_VIDEO_TRANSFER_GAMMA18:
+ case GST_VIDEO_TRANSFER_GAMMA20:
+ case GST_VIDEO_TRANSFER_GAMMA22:
+ case GST_VIDEO_TRANSFER_GAMMA28:
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "GAMMA 18, 20, 22, 28 transfer functions not supported");
+ /* fallthrough */
+ case GST_VIDEO_TRANSFER_GAMMA10:
+ transfer = V4L2_XFER_FUNC_NONE;
+ break;
+ case GST_VIDEO_TRANSFER_BT2020_12:
+ case GST_VIDEO_TRANSFER_BT709:
+ transfer = V4L2_XFER_FUNC_709;
+ break;
+ case GST_VIDEO_TRANSFER_SMPTE240M:
+ transfer = V4L2_XFER_FUNC_SMPTE240M;
+ break;
+ case GST_VIDEO_TRANSFER_SRGB:
+ transfer = V4L2_XFER_FUNC_SRGB;
+ break;
+ case GST_VIDEO_TRANSFER_LOG100:
+ case GST_VIDEO_TRANSFER_LOG316:
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "LOG 100, 316 transfer functions not supported");
+ /* FIXME No known sensible default, maybe AdobeRGB ? */
+ break;
+ case GST_VIDEO_TRANSFER_UNKNOWN:
+ /* We let the driver pick a default one */
+ break;
+ default:
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Unknown colorimetry tranfer %d", info.colorimetry.transfer);
+ break;
+ }
+
+ if (colorspace == 0)
+ {
+ /* Try to guess colorspace according to pixelformat and size */
+ if (GST_VIDEO_INFO_IS_YUV(&info))
+ {
+ if (range == V4L2_QUANTIZATION_FULL_RANGE && matrix == V4L2_YCBCR_ENC_601 && transfer == 0)
+ {
+ /* Full range BT.601 YCbCr encoding with unknown primaries and transfer
+ * function most likely is JPEG */
+ colorspace = V4L2_COLORSPACE_JPEG;
+ transfer = V4L2_XFER_FUNC_SRGB;
+ }
+ else
+ {
+ /* SD streams likely use SMPTE170M and HD streams REC709 */
+ if (width <= 720 && height <= 576)
+ colorspace = V4L2_COLORSPACE_SMPTE170M;
+ else
+ colorspace = V4L2_COLORSPACE_REC709;
+ }
+ }
+ else if (GST_VIDEO_INFO_IS_RGB(&info))
+ {
+ colorspace = V4L2_COLORSPACE_SRGB;
+ transfer = V4L2_XFER_FUNC_NONE;
+ }
+ }
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Desired format %dx%d, format "
+ "%" GST_FOURCC_FORMAT " stride: %d",
+ width, height,
+ GST_FOURCC_ARGS(pixelformat), GST_VIDEO_INFO_PLANE_STRIDE(&info, 0));
+
+ memset(&format, 0x00, sizeof(struct v4l2_format));
+ format.type = v4l2object->type;
+
+ if (is_mplane)
+ {
+ format.type = v4l2object->type;
+ format.fmt.pix_mp.pixelformat = pixelformat;
+ format.fmt.pix_mp.width = width;
+ format.fmt.pix_mp.height = height;
+ format.fmt.pix_mp.field = field;
+ format.fmt.pix_mp.num_planes = n_v4l_planes;
+
+ /* try to ask our prefered stride but it's not a failure if not
+ * accepted */
+ for (i = 0; i < n_v4l_planes; i++)
+ {
+ gint stride = GST_VIDEO_INFO_PLANE_STRIDE(&info, i);
+
+ if (GST_VIDEO_FORMAT_INFO_IS_TILED(info.finfo))
+ stride = GST_VIDEO_TILE_X_TILES(stride) << GST_VIDEO_FORMAT_INFO_TILE_WS(info.finfo);
+
+ format.fmt.pix_mp.plane_fmt[i].bytesperline = stride;
+ }
+
+ if (GST_VIDEO_INFO_FORMAT(&info) == GST_VIDEO_FORMAT_ENCODED)
+ {
+ if (v4l2object->req_mode == GST_V4L2_IO_DMABUF_IMPORT)
+ format.fmt.pix_mp.plane_fmt[0].sizeimage = 1;
+ else
+ format.fmt.pix_mp.plane_fmt[0].sizeimage = ENCODED_BUFFER_SIZE;
+ }
+ }
+ else
+ {
+ gint stride = GST_VIDEO_INFO_PLANE_STRIDE(&info, 0);
+
+ format.type = v4l2object->type;
+
+ format.fmt.pix.width = width;
+ format.fmt.pix.height = height;
+ format.fmt.pix.pixelformat = pixelformat;
+ format.fmt.pix.field = field;
+
+ if (GST_VIDEO_FORMAT_INFO_IS_TILED(info.finfo))
+ stride = GST_VIDEO_TILE_X_TILES(stride) << GST_VIDEO_FORMAT_INFO_TILE_WS(info.finfo);
+
+ /* try to ask our prefered stride */
+ format.fmt.pix.bytesperline = stride;
+
+ if (GST_VIDEO_INFO_FORMAT(&info) == GST_VIDEO_FORMAT_ENCODED)
+ {
+ if (v4l2object->req_mode == GST_V4L2_IO_DMABUF_IMPORT)
+ format.fmt.pix_mp.plane_fmt[0].sizeimage = 1;
+ else
+ format.fmt.pix_mp.plane_fmt[0].sizeimage = ENCODED_BUFFER_SIZE;
+ }
+ }
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Desired format is %dx%d, format "
+ "%" GST_FOURCC_FORMAT ", nb planes %d",
+ format.fmt.pix.width,
+ format.fmt.pix_mp.height,
+ GST_FOURCC_ARGS(format.fmt.pix.pixelformat),
+ is_mplane ? format.fmt.pix_mp.num_planes : 1);
+
+#ifndef GST_DISABLE_GST_DEBUG
+ if (is_mplane)
+ {
+ for (i = 0; i < format.fmt.pix_mp.num_planes; i++)
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, " stride %d",
+ format.fmt.pix_mp.plane_fmt[i].bytesperline);
+ }
+ else
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, " stride %d",
+ format.fmt.pix.bytesperline);
+ }
+#endif
+
+ if (is_mplane)
+ {
+ format.fmt.pix_mp.colorspace = colorspace;
+ format.fmt.pix_mp.quantization = range;
+ format.fmt.pix_mp.ycbcr_enc = matrix;
+ format.fmt.pix_mp.xfer_func = transfer;
+ }
+ else
+ {
+ format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+ format.fmt.pix.colorspace = colorspace;
+ format.fmt.pix.quantization = range;
+ format.fmt.pix.ycbcr_enc = matrix;
+ format.fmt.pix.xfer_func = transfer;
+ }
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Desired colorspace is %d:%d:%d:%d",
+ colorspace, range, matrix, transfer);
+
+ if (try_only)
+ {
+ if (v4l2object->ioctl(fd, VIDIOC_TRY_FMT, &format) < 0)
+ goto try_fmt_failed;
+ }
+ else
+ {
+ if (v4l2object->ioctl(fd, VIDIOC_S_FMT, &format) < 0)
+ goto set_fmt_failed;
+ }
+
+ if (is_mplane)
+ {
+ colorspace = format.fmt.pix_mp.colorspace;
+ range = format.fmt.pix_mp.quantization;
+ matrix = format.fmt.pix_mp.ycbcr_enc;
+ transfer = format.fmt.pix_mp.xfer_func;
+ }
+ else
+ {
+ colorspace = format.fmt.pix.colorspace;
+ range = format.fmt.pix.quantization;
+ matrix = format.fmt.pix.ycbcr_enc;
+ transfer = format.fmt.pix.xfer_func;
+ }
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Got format of %dx%d, format "
+ "%" GST_FOURCC_FORMAT ", nb planes %d, colorspace %d:%d:%d:%d",
+ format.fmt.pix.width, format.fmt.pix_mp.height,
+ GST_FOURCC_ARGS(format.fmt.pix.pixelformat),
+ is_mplane ? format.fmt.pix_mp.num_planes : 1,
+ colorspace, range, matrix, transfer);
+
+#ifndef GST_DISABLE_GST_DEBUG
+ if (is_mplane)
+ {
+ for (i = 0; i < format.fmt.pix_mp.num_planes; i++)
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, " stride %d, sizeimage %d",
+ format.fmt.pix_mp.plane_fmt[i].bytesperline,
+ format.fmt.pix_mp.plane_fmt[i].sizeimage);
+ }
+ else
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, " stride %d, sizeimage %d",
+ format.fmt.pix.bytesperline, format.fmt.pix.sizeimage);
+ }
+#endif
+
+ if (format.fmt.pix.pixelformat != pixelformat)
+ goto invalid_pixelformat;
+
+ /* Only negotiate size with raw data.
+ * For some codecs the dimensions are *not* in the bitstream, IIRC VC1
+ * in ASF mode for example, there is also not reason for a driver to
+ * change the size. */
+ if (info.finfo->format != GST_VIDEO_FORMAT_ENCODED)
+ {
+ /* We can crop larger images */
+ if (format.fmt.pix.width < width || format.fmt.pix.height < height)
+ goto invalid_dimensions;
+
+ /* Note, this will be adjusted if upstream has non-centered cropping. */
+ align.padding_top = 0;
+ align.padding_bottom = format.fmt.pix.height - height;
+ align.padding_left = 0;
+ align.padding_right = format.fmt.pix.width - width;
+ }
+
+ if (is_mplane && format.fmt.pix_mp.num_planes != n_v4l_planes)
+ goto invalid_planes;
+
+ /* used to check colorimetry and interlace mode fields presence */
+ s = gst_caps_get_structure(caps, 0);
+
+ if (!gst_aml_v4l2_object_get_interlace_mode(format.fmt.pix.field,
+ &info.interlace_mode))
+ goto invalid_field;
+ if (gst_structure_has_field(s, "interlace-mode"))
+ {
+ if (format.fmt.pix.field != field)
+ goto invalid_field;
+ }
+
+ if (gst_aml_v4l2_object_get_colorspace(&format, &info.colorimetry))
+ {
+ if (gst_structure_has_field(s, "colorimetry"))
+ {
+ if (!gst_aml_v4l2_video_colorimetry_matches(&info.colorimetry,
+ gst_structure_get_string(s, "colorimetry")))
+ goto invalid_colorimetry;
+ }
+ }
+ else
+ {
+ /* The driver (or libv4l2) is miss-behaving, just ignore colorimetry from
+ * the TRY_FMT */
+ disable_colorimetry = TRUE;
+ if (gst_structure_has_field(s, "colorimetry"))
+ gst_structure_remove_field(s, "colorimetry");
+ }
+
+ /* In case we have skipped the try_fmt probes, we'll need to set the
+ * colorimetry and interlace-mode back into the caps. */
+ if (v4l2object->skip_try_fmt_probes)
+ {
+ if (!disable_colorimetry && !gst_structure_has_field(s, "colorimetry"))
+ {
+ gchar *str = gst_video_colorimetry_to_string(&info.colorimetry);
+ gst_structure_set(s, "colorimetry", G_TYPE_STRING, str, NULL);
+ g_free(str);
+ }
+
+ if (!gst_structure_has_field(s, "interlace-mode"))
+ gst_structure_set(s, "interlace-mode", G_TYPE_STRING,
+ gst_video_interlace_mode_to_string(info.interlace_mode), NULL);
+ }
+
+ if (try_only) /* good enough for trying only */
+ return TRUE;
+
+ if (GST_VIDEO_INFO_HAS_ALPHA(&info))
+ {
+ struct v4l2_control ctl = {
+ 0,
+ };
+ ctl.id = V4L2_CID_ALPHA_COMPONENT;
+ ctl.value = 0xff;
+
+ if (v4l2object->ioctl(fd, VIDIOC_S_CTRL, &ctl) < 0)
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Failed to set alpha component value");
+ }
+
+ /* Is there a reason we require the caller to always specify a framerate? */
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Desired framerate: %u/%u", fps_n,
+ fps_d);
+
+ if (v4l2object->ioctl(fd, VIDIOC_G_PARM, &streamparm) < 0)
+ goto get_parm_failed;
+
+ if (v4l2object->type == V4L2_BUF_TYPE_VIDEO_CAPTURE || v4l2object->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ {
+ GST_VIDEO_INFO_FPS_N(&info) =
+ streamparm.parm.capture.timeperframe.denominator;
+ GST_VIDEO_INFO_FPS_D(&info) =
+ streamparm.parm.capture.timeperframe.numerator;
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Got capture framerate: %u/%u",
+ streamparm.parm.capture.timeperframe.denominator,
+ streamparm.parm.capture.timeperframe.numerator);
+
+ /* We used to skip frame rate setup if the camera was already setup
+ * with the requested frame rate. This breaks some cameras though,
+ * causing them to not output data (several models of Thinkpad cameras
+ * have this problem at least).
+ * So, don't skip. */
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "Setting capture framerate to %u/%u",
+ fps_n, fps_d);
+ /* We want to change the frame rate, so check whether we can. Some cheap USB
+ * cameras don't have the capability */
+ if ((streamparm.parm.capture.capability & V4L2_CAP_TIMEPERFRAME) == 0)
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "Not setting capture framerate (not supported)");
+ goto done;
+ }
+
+ /* Note: V4L2 wants the frame interval, we have the frame rate */
+ streamparm.parm.capture.timeperframe.numerator = fps_d;
+ streamparm.parm.capture.timeperframe.denominator = fps_n;
+
+ /* some cheap USB cam's won't accept any change */
+ if (v4l2object->ioctl(fd, VIDIOC_S_PARM, &streamparm) < 0)
+ goto set_parm_failed;
+
+ if (streamparm.parm.capture.timeperframe.numerator > 0 &&
+ streamparm.parm.capture.timeperframe.denominator > 0)
+ {
+ /* get new values */
+ fps_d = streamparm.parm.capture.timeperframe.numerator;
+ fps_n = streamparm.parm.capture.timeperframe.denominator;
+
+ GST_INFO_OBJECT(v4l2object->dbg_obj, "Set capture framerate to %u/%u",
+ fps_n, fps_d);
+ }
+ else
+ {
+ /* fix v4l2 capture driver to provide framerate values */
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Reuse caps framerate %u/%u - fix v4l2 capture driver", fps_n, fps_d);
+ }
+
+ GST_VIDEO_INFO_FPS_N(&info) = fps_n;
+ GST_VIDEO_INFO_FPS_D(&info) = fps_d;
+ }
+ else if (v4l2object->type == V4L2_BUF_TYPE_VIDEO_OUTPUT || v4l2object->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ {
+ GST_VIDEO_INFO_FPS_N(&info) =
+ streamparm.parm.output.timeperframe.denominator;
+ GST_VIDEO_INFO_FPS_D(&info) =
+ streamparm.parm.output.timeperframe.numerator;
+
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Got output framerate: %u/%u",
+ streamparm.parm.output.timeperframe.denominator,
+ streamparm.parm.output.timeperframe.numerator);
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "Setting output framerate to %u/%u",
+ fps_n, fps_d);
+ if ((streamparm.parm.output.capability & V4L2_CAP_TIMEPERFRAME) == 0)
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "Not setting output framerate (not supported)");
+ goto done;
+ }
+
+ /* Note: V4L2 wants the frame interval, we have the frame rate */
+ streamparm.parm.output.timeperframe.numerator = fps_d;
+ streamparm.parm.output.timeperframe.denominator = fps_n;
+
+ if (v4l2object->ioctl(fd, VIDIOC_S_PARM, &streamparm) < 0)
+ goto set_parm_failed;
+
+ if (streamparm.parm.output.timeperframe.numerator > 0 &&
+ streamparm.parm.output.timeperframe.denominator > 0)
+ {
+ /* get new values */
+ fps_d = streamparm.parm.output.timeperframe.numerator;
+ fps_n = streamparm.parm.output.timeperframe.denominator;
+
+ GST_INFO_OBJECT(v4l2object->dbg_obj, "Set output framerate to %u/%u",
+ fps_n, fps_d);
+ }
+ else
+ {
+ /* fix v4l2 output driver to provide framerate values */
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Reuse caps framerate %u/%u - fix v4l2 output driver", fps_n, fps_d);
+ }
+
+ GST_VIDEO_INFO_FPS_N(&info) = fps_n;
+ GST_VIDEO_INFO_FPS_D(&info) = fps_d;
+ }
+
+done:
+ /* add boolean return, so we can fail on drivers bugs */
+ gst_aml_v4l2_object_save_format(v4l2object, fmtdesc, &format, &info, &align);
+
+ /* now configure the pool */
+ if (!gst_aml_v4l2_object_setup_pool(v4l2object, caps))
+ goto pool_failed;
+
+ return TRUE;
+
+ /* ERRORS */
+invalid_caps:
+{
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "can't parse caps %" GST_PTR_FORMAT,
+ caps);
+
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Invalid caps")), ("Can't parse caps %" GST_PTR_FORMAT, caps));
+ return FALSE;
+}
+try_fmt_failed:
+{
+ if (errno == EINVAL)
+ {
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Device '%s' has no supported format"), v4l2object->videodev),
+ ("Call to TRY_FMT failed for %" GST_FOURCC_FORMAT " @ %dx%d: %s",
+ GST_FOURCC_ARGS(pixelformat), width, height,
+ g_strerror(errno)));
+ }
+ else
+ {
+ GST_AML_V4L2_ERROR(error, RESOURCE, FAILED,
+ (_("Device '%s' failed during initialization"),
+ v4l2object->videodev),
+ ("Call to TRY_FMT failed for %" GST_FOURCC_FORMAT " @ %dx%d: %s",
+ GST_FOURCC_ARGS(pixelformat), width, height,
+ g_strerror(errno)));
+ }
+ return FALSE;
+}
+set_fmt_failed:
+{
+ if (errno == EBUSY)
+ {
+ GST_AML_V4L2_ERROR(error, RESOURCE, BUSY,
+ (_("Device '%s' is busy"), v4l2object->videodev),
+ ("Call to S_FMT failed for %" GST_FOURCC_FORMAT " @ %dx%d: %s",
+ GST_FOURCC_ARGS(pixelformat), width, height,
+ g_strerror(errno)));
+ }
+ else if (errno == EINVAL)
+ {
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Device '%s' has no supported format"), v4l2object->videodev),
+ ("Call to S_FMT failed for %" GST_FOURCC_FORMAT " @ %dx%d: %s",
+ GST_FOURCC_ARGS(pixelformat), width, height,
+ g_strerror(errno)));
+ }
+ else
+ {
+ GST_AML_V4L2_ERROR(error, RESOURCE, FAILED,
+ (_("Device '%s' failed during initialization"),
+ v4l2object->videodev),
+ ("Call to S_FMT failed for %" GST_FOURCC_FORMAT " @ %dx%d: %s",
+ GST_FOURCC_ARGS(pixelformat), width, height,
+ g_strerror(errno)));
+ }
+ return FALSE;
+}
+invalid_dimensions:
+{
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Device '%s' cannot capture at %dx%d"),
+ v4l2object->videodev, width, height),
+ ("Tried to capture at %dx%d, but device returned size %dx%d",
+ width, height, format.fmt.pix.width, format.fmt.pix.height));
+ return FALSE;
+}
+invalid_pixelformat:
+{
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Device '%s' cannot capture in the specified format"),
+ v4l2object->videodev),
+ ("Tried to capture in %" GST_FOURCC_FORMAT
+ ", but device returned format"
+ " %" GST_FOURCC_FORMAT,
+ GST_FOURCC_ARGS(pixelformat),
+ GST_FOURCC_ARGS(format.fmt.pix.pixelformat)));
+ return FALSE;
+}
+invalid_planes:
+{
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Device '%s' does support non-contiguous planes"),
+ v4l2object->videodev),
+ ("Device wants %d planes", format.fmt.pix_mp.num_planes));
+ return FALSE;
+}
+invalid_field:
+{
+ enum v4l2_field wanted_field;
+
+ if (is_mplane)
+ wanted_field = format.fmt.pix_mp.field;
+ else
+ wanted_field = format.fmt.pix.field;
+
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Device '%s' does not support %s interlacing"),
+ v4l2object->videodev,
+ field == V4L2_FIELD_NONE ? "progressive" : "interleaved"),
+ ("Device wants %s interlacing",
+ wanted_field == V4L2_FIELD_NONE ? "progressive" : "interleaved"));
+ return FALSE;
+}
+invalid_colorimetry:
+{
+ gchar *wanted_colorimetry;
+
+ wanted_colorimetry = gst_video_colorimetry_to_string(&info.colorimetry);
+
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Device '%s' does not support %s colorimetry"),
+ v4l2object->videodev, gst_structure_get_string(s, "colorimetry")),
+ ("Device wants %s colorimetry", wanted_colorimetry));
+
+ g_free(wanted_colorimetry);
+ return FALSE;
+}
+get_parm_failed:
+{
+ /* it's possible that this call is not supported */
+ if (errno != EINVAL && errno != ENOTTY)
+ {
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Could not get parameters on device '%s'"),
+ v4l2object->videodev),
+ GST_ERROR_SYSTEM);
+ }
+ goto done;
+}
+set_parm_failed:
+{
+ GST_AML_V4L2_ERROR(error, RESOURCE, SETTINGS,
+ (_("Video device did not accept new frame rate setting.")),
+ GST_ERROR_SYSTEM);
+ goto done;
+}
+pool_failed:
+{
+ /* setup_pool already send the error */
+ return FALSE;
+}
+}
+
+gboolean
+gst_aml_v4l2_object_set_format(GstAmlV4l2Object *v4l2object, GstCaps *caps,
+ GstAmlV4l2Error *error)
+{
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Setting format to %" GST_PTR_FORMAT,
+ caps);
+ return gst_aml_v4l2_object_set_format_full(v4l2object, caps, FALSE, error);
+}
+
+gboolean
+gst_aml_v4l2_object_try_format(GstAmlV4l2Object *v4l2object, GstCaps *caps,
+ GstAmlV4l2Error *error)
+{
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "Trying format %" GST_PTR_FORMAT,
+ caps);
+ return gst_aml_v4l2_object_set_format_full(v4l2object, caps, TRUE, error);
+}
+
+GstFlowReturn
+gst_aml_v4l2_object_poll(GstAmlV4l2Object *v4l2object)
+{
+ gint ret;
+
+ if (!v4l2object->can_poll_device)
+ goto done;
+
+ GST_LOG_OBJECT(v4l2object, "polling device");
+
+again:
+ ret = gst_poll_wait(v4l2object->poll, GST_CLOCK_TIME_NONE);
+ if (G_UNLIKELY(ret < 0))
+ {
+ switch (errno)
+ {
+ case EBUSY:
+ goto stopped;
+ case EAGAIN:
+ case EINTR:
+ goto again;
+ case ENXIO:
+ GST_WARNING_OBJECT(v4l2object,
+ "v4l2 device doesn't support polling. Disabling"
+ " using libv4l2 in this case may cause deadlocks");
+ v4l2object->can_poll_device = FALSE;
+ goto done;
+ default:
+ goto select_error;
+ }
+ }
+
+done:
+ return GST_FLOW_OK;
+
+ /* ERRORS */
+stopped:
+{
+ GST_DEBUG_OBJECT(v4l2object, "stop called");
+ return GST_FLOW_FLUSHING;
+}
+select_error:
+{
+ GST_ELEMENT_ERROR(v4l2object->element, RESOURCE, READ, (NULL),
+ ("poll error %d: %s (%d)", ret, g_strerror(errno), errno));
+ return GST_FLOW_ERROR;
+}
+}
+
+GstFlowReturn
+gst_aml_v4l2_object_dqevent(GstAmlV4l2Object *v4l2object)
+{
+ GstFlowReturn res;
+ struct v4l2_event evt;
+
+ if ((res = gst_aml_v4l2_object_poll(v4l2object)) != GST_FLOW_OK)
+ goto poll_failed;
+
+ memset(&evt, 0x00, sizeof(struct v4l2_event));
+ if (v4l2object->ioctl(v4l2object->video_fd, VIDIOC_DQEVENT, &evt) < 0)
+ goto dqevent_failed;
+
+ switch (evt.type)
+ {
+ case V4L2_EVENT_SOURCE_CHANGE:
+ return GST_AML_V4L2_FLOW_SOURCE_CHANGE;
+ break;
+ case V4L2_EVENT_EOS:
+ return GST_AML_V4L2_FLOW_LAST_BUFFER;
+ break;
+ default:
+ break;
+ }
+
+ return GST_FLOW_OK;
+
+ /* ERRORS */
+poll_failed:
+{
+ GST_DEBUG_OBJECT(v4l2object, "poll error %s", gst_flow_get_name(res));
+ return res;
+}
+dqevent_failed:
+{
+ return GST_FLOW_ERROR;
+}
+}
+
+/**
+ * gst_aml_v4l2_object_acquire_format:
+ * @v4l2object the object
+ * @info a GstVideoInfo to be filled
+ *
+ * Acquire the driver choosen format. This is useful in decoder or encoder elements where
+ * the output format is choosen by the HW.
+ *
+ * Returns: %TRUE on success, %FALSE on failure.
+ */
+gboolean
+gst_aml_v4l2_object_acquire_format(GstAmlV4l2Object *v4l2object, GstVideoInfo *info)
+{
+ struct v4l2_fmtdesc *fmtdesc;
+ struct v4l2_format fmt;
+ struct v4l2_crop crop;
+ struct v4l2_selection sel;
+ struct v4l2_rect *r = NULL;
+ GstVideoFormat format;
+ guint width, height;
+ GstVideoAlignment align;
+
+ gst_video_info_init(info);
+ gst_video_alignment_reset(&align);
+
+ memset(&fmt, 0x00, sizeof(struct v4l2_format));
+ fmt.type = v4l2object->type;
+ if (v4l2object->ioctl(v4l2object->video_fd, VIDIOC_G_FMT, &fmt) < 0)
+ goto get_fmt_failed;
+
+ fmtdesc = gst_aml_v4l2_object_get_format_from_fourcc(v4l2object,
+ fmt.fmt.pix.pixelformat);
+ if (fmtdesc == NULL)
+ goto unsupported_format;
+
+ /* No need to care about mplane, the four first params are the same */
+ format = gst_aml_v4l2_object_v4l2fourcc_to_video_format(fmt.fmt.pix.pixelformat);
+
+ /* fails if we do no translate the fmt.pix.pixelformat to GstVideoFormat */
+ if (format == GST_VIDEO_FORMAT_UNKNOWN)
+ goto unsupported_format;
+
+ if (fmt.fmt.pix.width == 0 || fmt.fmt.pix.height == 0)
+ goto invalid_dimensions;
+
+ width = fmt.fmt.pix.width;
+ height = fmt.fmt.pix.height;
+
+ /* Use the default compose rectangle */
+ memset(&sel, 0, sizeof(struct v4l2_selection));
+ sel.type = v4l2object->type;
+ sel.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
+ if (v4l2object->ioctl(v4l2object->video_fd, VIDIOC_G_SELECTION, &sel) >= 0)
+ {
+ r = &sel.r;
+ }
+ else
+ {
+ /* For ancient kernels, fall back to G_CROP */
+ memset(&crop, 0, sizeof(struct v4l2_crop));
+ crop.type = v4l2object->type;
+ if (v4l2object->ioctl(v4l2object->video_fd, VIDIOC_G_CROP, &crop) >= 0)
+ r = &crop.c;
+ }
+ if (r)
+ {
+ align.padding_left = r->left;
+ align.padding_top = r->top;
+ align.padding_right = width - r->width - r->left;
+ align.padding_bottom = height - r->height - r->top;
+ width = r->width;
+ height = r->height;
+ }
+
+ gst_video_info_set_format(info, format, width, height);
+
+ switch (fmt.fmt.pix.field)
+ {
+ case V4L2_FIELD_ANY:
+ case V4L2_FIELD_NONE:
+ info->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
+ break;
+ case V4L2_FIELD_INTERLACED:
+ case V4L2_FIELD_INTERLACED_TB:
+ case V4L2_FIELD_INTERLACED_BT:
+ info->interlace_mode = GST_VIDEO_INTERLACE_MODE_INTERLEAVED;
+ break;
+ default:
+ goto unsupported_field;
+ }
+
+ gst_aml_v4l2_object_get_colorspace(&fmt, &info->colorimetry);
+
+ gst_aml_v4l2_object_save_format(v4l2object, fmtdesc, &fmt, info, &align);
+
+ /* Shall we setup the pool ? */
+
+ return TRUE;
+
+get_fmt_failed:
+{
+ GST_ELEMENT_WARNING(v4l2object->element, RESOURCE, SETTINGS,
+ (_("Video device did not provide output format.")), GST_ERROR_SYSTEM);
+ return FALSE;
+}
+invalid_dimensions:
+{
+ GST_ELEMENT_WARNING(v4l2object->element, RESOURCE, SETTINGS,
+ (_("Video device returned invalid dimensions.")),
+ ("Expected non 0 dimensions, got %dx%d", fmt.fmt.pix.width,
+ fmt.fmt.pix.height));
+ return FALSE;
+}
+unsupported_field:
+{
+ GST_ELEMENT_ERROR(v4l2object->element, RESOURCE, SETTINGS,
+ (_("Video device uses an unsupported interlacing method.")),
+ ("V4L2 field type %d not supported", fmt.fmt.pix.field));
+ return FALSE;
+}
+unsupported_format:
+{
+ GST_ELEMENT_ERROR(v4l2object->element, RESOURCE, SETTINGS,
+ (_("Video device uses an unsupported pixel format.")),
+ ("V4L2 format %" GST_FOURCC_FORMAT " not supported",
+ GST_FOURCC_ARGS(fmt.fmt.pix.pixelformat)));
+ return FALSE;
+}
+}
+
+gboolean
+gst_aml_v4l2_object_set_crop(GstAmlV4l2Object *obj)
+{
+ struct v4l2_selection sel = {0};
+ struct v4l2_crop crop = {0};
+
+ sel.type = obj->type;
+ sel.target = V4L2_SEL_TGT_CROP;
+ sel.flags = 0;
+ sel.r.left = obj->align.padding_left;
+ sel.r.top = obj->align.padding_top;
+ sel.r.width = obj->info.width;
+ sel.r.height = obj->info.height;
+
+ crop.type = obj->type;
+ crop.c = sel.r;
+
+ if (obj->align.padding_left + obj->align.padding_top +
+ obj->align.padding_right + obj->align.padding_bottom ==
+ 0)
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj, "no cropping needed");
+ return TRUE;
+ }
+
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "Desired cropping left %u, top %u, size %ux%u", crop.c.left, crop.c.top,
+ crop.c.width, crop.c.height);
+
+ if (obj->ioctl(obj->video_fd, VIDIOC_S_SELECTION, &sel) < 0)
+ {
+ if (errno != ENOTTY)
+ {
+ GST_WARNING_OBJECT(obj->dbg_obj,
+ "Failed to set crop rectangle with VIDIOC_S_SELECTION: %s",
+ g_strerror(errno));
+ return FALSE;
+ }
+ else
+ {
+ if (obj->ioctl(obj->video_fd, VIDIOC_S_CROP, &crop) < 0)
+ {
+ GST_WARNING_OBJECT(obj->dbg_obj, "VIDIOC_S_CROP failed");
+ return FALSE;
+ }
+
+ if (obj->ioctl(obj->video_fd, VIDIOC_G_CROP, &crop) < 0)
+ {
+ GST_WARNING_OBJECT(obj->dbg_obj, "VIDIOC_G_CROP failed");
+ return FALSE;
+ }
+
+ sel.r = crop.c;
+ }
+ }
+
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "Got cropping left %u, top %u, size %ux%u", crop.c.left, crop.c.top,
+ crop.c.width, crop.c.height);
+
+ return TRUE;
+}
+
+gboolean
+gst_aml_v4l2_object_caps_equal(GstAmlV4l2Object *v4l2object, GstCaps *caps)
+{
+ GstStructure *config;
+ GstCaps *oldcaps;
+ gboolean ret;
+
+ if (!v4l2object->pool)
+ return FALSE;
+
+ config = gst_buffer_pool_get_config(v4l2object->pool);
+ gst_buffer_pool_config_get_params(config, &oldcaps, NULL, NULL, NULL);
+
+ ret = oldcaps && gst_caps_is_equal(caps, oldcaps);
+
+ gst_structure_free(config);
+
+ return ret;
+}
+
+gboolean
+gst_aml_v4l2_object_caps_is_subset(GstAmlV4l2Object *v4l2object, GstCaps *caps)
+{
+ GstStructure *config;
+ GstCaps *oldcaps;
+ gboolean ret;
+
+ if (!v4l2object->pool)
+ return FALSE;
+
+ config = gst_buffer_pool_get_config(v4l2object->pool);
+ gst_buffer_pool_config_get_params(config, &oldcaps, NULL, NULL, NULL);
+
+ ret = oldcaps && gst_caps_is_subset(oldcaps, caps);
+
+ gst_structure_free(config);
+
+ return ret;
+}
+
+GstCaps *
+gst_aml_v4l2_object_get_current_caps(GstAmlV4l2Object *v4l2object)
+{
+ GstStructure *config;
+ GstCaps *oldcaps;
+
+ if (!v4l2object->pool)
+ return NULL;
+
+ config = gst_buffer_pool_get_config(v4l2object->pool);
+ gst_buffer_pool_config_get_params(config, &oldcaps, NULL, NULL, NULL);
+
+ if (oldcaps)
+ gst_caps_ref(oldcaps);
+
+ gst_structure_free(config);
+
+ return oldcaps;
+}
+
+gboolean
+gst_aml_v4l2_object_unlock(GstAmlV4l2Object *v4l2object)
+{
+ gboolean ret = TRUE;
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "start flushing");
+
+ gst_poll_set_flushing(v4l2object->poll, TRUE);
+
+ if (v4l2object->pool && gst_buffer_pool_is_active(v4l2object->pool))
+ gst_buffer_pool_set_flushing(v4l2object->pool, TRUE);
+
+ return ret;
+}
+
+gboolean
+gst_aml_v4l2_object_unlock_stop(GstAmlV4l2Object *v4l2object)
+{
+ gboolean ret = TRUE;
+
+ GST_LOG_OBJECT(v4l2object->dbg_obj, "stop flushing");
+
+ if (v4l2object->pool && gst_buffer_pool_is_active(v4l2object->pool))
+ gst_buffer_pool_set_flushing(v4l2object->pool, FALSE);
+
+ gst_poll_set_flushing(v4l2object->poll, FALSE);
+
+ return ret;
+}
+
+gboolean
+gst_aml_v4l2_object_stop(GstAmlV4l2Object *v4l2object)
+{
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "stopping");
+
+ if (!GST_AML_V4L2_IS_OPEN(v4l2object))
+ goto done;
+ if (!GST_AML_V4L2_IS_ACTIVE(v4l2object))
+ goto done;
+
+ if (v4l2object->pool)
+ {
+ if (!gst_aml_v4l2_buffer_pool_orphan(&v4l2object->pool))
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj, "deactivating pool");
+ gst_buffer_pool_set_active(v4l2object->pool, FALSE);
+ gst_object_unref(v4l2object->pool);
+ }
+ v4l2object->pool = NULL;
+ }
+
+ GST_AML_V4L2_SET_INACTIVE(v4l2object);
+
+done:
+ return TRUE;
+}
+
+GstCaps *
+gst_aml_v4l2_object_probe_caps(GstAmlV4l2Object *v4l2object, GstCaps *filter)
+{
+ GstCaps *ret;
+ GSList *walk;
+ GSList *formats;
+
+ formats = gst_aml_v4l2_object_get_format_list(v4l2object);
+
+ ret = gst_caps_new_empty();
+
+ if (v4l2object->keep_aspect && !v4l2object->par)
+ {
+ struct v4l2_cropcap cropcap;
+
+ memset(&cropcap, 0, sizeof(cropcap));
+
+ cropcap.type = v4l2object->type;
+ if (v4l2object->ioctl(v4l2object->video_fd, VIDIOC_CROPCAP, &cropcap) < 0)
+ {
+ if (errno != ENOTTY)
+ GST_WARNING_OBJECT(v4l2object->dbg_obj,
+ "Failed to probe pixel aspect ratio with VIDIOC_CROPCAP: %s",
+ g_strerror(errno));
+ }
+ else if (cropcap.pixelaspect.numerator && cropcap.pixelaspect.denominator)
+ {
+ v4l2object->par = g_new0(GValue, 1);
+ g_value_init(v4l2object->par, GST_TYPE_FRACTION);
+ gst_value_set_fraction(v4l2object->par, cropcap.pixelaspect.numerator,
+ cropcap.pixelaspect.denominator);
+ }
+ }
+
+ for (walk = formats; walk; walk = walk->next)
+ {
+ struct v4l2_fmtdesc *format;
+ GstStructure *template;
+ GstCaps *tmp, *tmp2;
+
+ format = (struct v4l2_fmtdesc *)walk->data;
+
+ template = gst_aml_v4l2_object_v4l2fourcc_to_bare_struct(format->pixelformat);
+
+ if (!template)
+ {
+ GST_DEBUG_OBJECT(v4l2object->dbg_obj,
+ "unknown format %" GST_FOURCC_FORMAT,
+ GST_FOURCC_ARGS(format->pixelformat));
+ continue;
+ }
+
+ /* If we have a filter, check if we need to probe this format or not */
+ if (filter)
+ {
+ GstCaps *format_caps = gst_caps_new_empty();
+
+ gst_caps_append_structure(format_caps, gst_structure_copy(template));
+
+ if (!gst_caps_can_intersect(format_caps, filter))
+ {
+ gst_caps_unref(format_caps);
+ gst_structure_free(template);
+ continue;
+ }
+
+ gst_caps_unref(format_caps);
+ }
+
+ tmp = gst_aml_v4l2_object_probe_caps_for_format(v4l2object,
+ format->pixelformat, template);
+
+ if (tmp)
+ {
+ tmp2 = gst_caps_copy(tmp);
+ gst_caps_set_features_simple(tmp2, gst_caps_features_from_string(GST_CAPS_FEATURE_MEMORY_DMABUF));
+ gst_caps_append(ret, tmp);
+ gst_caps_append(ret, tmp2);
+ }
+
+ gst_structure_free(template);
+ }
+
+ if (filter)
+ {
+ GstCaps *tmp;
+
+ tmp = ret;
+ ret = gst_caps_intersect_full(filter, ret, GST_CAPS_INTERSECT_FIRST);
+ gst_caps_unref(tmp);
+ }
+
+ GST_INFO_OBJECT(v4l2object->dbg_obj, "probed caps: %" GST_PTR_FORMAT, ret);
+
+ return ret;
+}
+
+GstCaps *
+gst_aml_v4l2_object_get_caps(GstAmlV4l2Object *v4l2object, GstCaps *filter)
+{
+ GstCaps *ret;
+
+ if (v4l2object->probed_caps == NULL)
+ v4l2object->probed_caps = gst_aml_v4l2_object_probe_caps(v4l2object, NULL);
+
+ if (filter)
+ {
+ ret = gst_caps_intersect_full(filter, v4l2object->probed_caps,
+ GST_CAPS_INTERSECT_FIRST);
+ }
+ else
+ {
+ ret = gst_caps_ref(v4l2object->probed_caps);
+ }
+
+ return ret;
+}
+
+gboolean
+gst_aml_v4l2_object_decide_allocation(GstAmlV4l2Object *obj, GstQuery *query)
+{
+ GstCaps *caps;
+ GstBufferPool *pool = NULL, *other_pool = NULL;
+ GstStructure *config;
+ guint size, min, max, own_min = 0;
+ gboolean update;
+ gboolean has_video_meta;
+ gboolean can_share_own_pool, pushing_from_our_pool = FALSE;
+ GstAllocator *allocator = NULL;
+ GstAllocationParams params = {0};
+
+ GST_DEBUG_OBJECT(obj->dbg_obj, "decide allocation");
+
+ g_return_val_if_fail(obj->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ obj->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
+ FALSE);
+
+ gst_query_parse_allocation(query, &caps, NULL);
+
+ if (obj->pool == NULL)
+ {
+ if (!gst_aml_v4l2_object_setup_pool(obj, caps))
+ goto pool_failed;
+ }
+
+ if (gst_query_get_n_allocation_params(query) > 0)
+ gst_query_parse_nth_allocation_param(query, 0, &allocator, ¶ms);
+
+ if (gst_query_get_n_allocation_pools(query) > 0)
+ {
+ gst_query_parse_nth_allocation_pool(query, 0, &pool, &size, &min, &max);
+ update = TRUE;
+ }
+ else
+ {
+ pool = NULL;
+ min = max = 0;
+ size = 0;
+ update = FALSE;
+ }
+
+ GST_DEBUG_OBJECT(obj->dbg_obj, "allocation: size:%u min:%u max:%u pool:%" GST_PTR_FORMAT, size, min, max, pool);
+
+ has_video_meta =
+ gst_query_find_allocation_meta(query, GST_VIDEO_META_API_TYPE, NULL);
+
+ can_share_own_pool = (has_video_meta || !obj->need_video_meta);
+
+ gst_aml_v4l2_get_driver_min_buffers(obj);
+ /* We can't share our own pool, if it exceed V4L2 capacity */
+ if (min + obj->min_buffers + 1 > VIDEO_MAX_FRAME)
+ can_share_own_pool = FALSE;
+
+ /* select a pool */
+ switch (obj->mode)
+ {
+ case GST_V4L2_IO_RW:
+ if (pool)
+ {
+ /* in READ/WRITE mode, prefer a downstream pool because our own pool
+ * doesn't help much, we have to write to it as well */
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "read/write mode: using downstream pool");
+ /* use the bigest size, when we use our own pool we can't really do any
+ * other size than what the hardware gives us but for downstream pools
+ * we can try */
+ size = MAX(size, obj->info.size);
+ }
+ else if (can_share_own_pool)
+ {
+ /* no downstream pool, use our own then */
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "read/write mode: no downstream pool, using our own");
+ pool = gst_object_ref(obj->pool);
+ size = obj->info.size;
+ pushing_from_our_pool = TRUE;
+ }
+ break;
+
+ case GST_V4L2_IO_USERPTR:
+ case GST_V4L2_IO_DMABUF_IMPORT:
+ /* in importing mode, prefer our own pool, and pass the other pool to
+ * our own, so it can serve itself */
+ if (pool == NULL)
+ goto no_downstream_pool;
+ gst_aml_v4l2_buffer_pool_set_other_pool(GST_AML_V4L2_BUFFER_POOL(obj->pool),
+ pool);
+ other_pool = pool;
+ gst_object_unref(pool);
+ pool = gst_object_ref(obj->pool);
+ size = obj->info.size;
+ break;
+
+ case GST_V4L2_IO_MMAP:
+ case GST_V4L2_IO_DMABUF:
+ /* in streaming mode, prefer our own pool */
+ /* Check if we can use it ... */
+ if (can_share_own_pool)
+ {
+ if (pool)
+ gst_object_unref(pool);
+ pool = gst_object_ref(obj->pool);
+ size = obj->info.size;
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "streaming mode: using our own pool %" GST_PTR_FORMAT, pool);
+ pushing_from_our_pool = TRUE;
+ }
+ else if (pool)
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "streaming mode: copying to downstream pool %" GST_PTR_FORMAT,
+ pool);
+ }
+ else
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "streaming mode: no usable pool, copying to generic pool");
+ size = MAX(size, obj->info.size);
+ }
+ break;
+ case GST_V4L2_IO_AUTO:
+ default:
+ GST_WARNING_OBJECT(obj->dbg_obj, "unhandled mode");
+ break;
+ }
+
+ if (size == 0)
+ goto no_size;
+
+ /* If pushing from our own pool, configure it with queried minimum,
+ * otherwise use the minimum required */
+ if (pushing_from_our_pool)
+ {
+ /* When pushing from our own pool, we need what downstream one, to be able
+ * to fill the pipeline, the minimum required to decoder according to the
+ * driver and 2 more, so we don't endup up with everything downstream or
+ * held by the decoder. We account 2 buffers for v4l2 so when one is being
+ * pushed downstream the other one can already be queued for the next
+ * frame. */
+ own_min = min + obj->min_buffers + 2;
+
+ /* If no allocation parameters where provided, allow for a little more
+ * buffers and enable copy threshold */
+ if (!update)
+ {
+ own_min += 2;
+ gst_aml_v4l2_buffer_pool_copy_at_threshold(GST_AML_V4L2_BUFFER_POOL(pool),
+ TRUE);
+ }
+ else
+ {
+ gst_aml_v4l2_buffer_pool_copy_at_threshold(GST_AML_V4L2_BUFFER_POOL(pool),
+ FALSE);
+ }
+ }
+ else
+ {
+ /* In this case we'll have to configure two buffer pool. For our buffer
+ * pool, we'll need what the driver one, and one more, so we can dequeu */
+ own_min = obj->min_buffers + 1;
+ own_min = MAX(own_min, GST_AML_V4L2_MIN_BUFFERS);
+
+ /* for the downstream pool, we keep what downstream wants, though ensure
+ * at least a minimum if downstream didn't suggest anything (we are
+ * expecting the base class to create a default one for the context) */
+ min = MAX(min, GST_AML_V4L2_MIN_BUFFERS);
+
+ /* To import we need the other pool to hold at least own_min */
+ if (obj->pool == pool)
+ min += own_min;
+ }
+
+ /* Request a bigger max, if one was suggested but it's too small */
+ if (max != 0)
+ max = MAX(min, max);
+
+ /* First step, configure our own pool */
+ config = gst_buffer_pool_get_config(obj->pool);
+
+ if (obj->need_video_meta || has_video_meta)
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj, "activate Video Meta");
+ gst_buffer_pool_config_add_option(config,
+ GST_BUFFER_POOL_OPTION_VIDEO_META);
+ }
+
+ gst_buffer_pool_config_set_allocator(config, allocator, ¶ms);
+ gst_buffer_pool_config_set_params(config, caps, size, own_min + DEFAULT_EXTRA_CAPTURE_BUF_SIZE, own_min + DEFAULT_EXTRA_CAPTURE_BUF_SIZE);
+
+ GST_DEBUG_OBJECT(obj->dbg_obj, "setting own pool config to %" GST_PTR_FORMAT, config);
+
+ /* Our pool often need to adjust the value */
+ if (!gst_buffer_pool_set_config(obj->pool, config))
+ {
+ config = gst_buffer_pool_get_config(obj->pool);
+
+ GST_DEBUG_OBJECT(obj->dbg_obj, "own pool config changed to %" GST_PTR_FORMAT, config);
+
+ /* our pool will adjust the maximum buffer, which we are fine with */
+ if (!gst_buffer_pool_set_config(obj->pool, config))
+ goto config_failed;
+ }
+
+ /* Now configure the other pool if different */
+ if (obj->pool != pool)
+ other_pool = pool;
+
+ if (other_pool)
+ {
+ GstAmlV4l2VideoDec *self = (GstAmlV4l2VideoDec *)obj->element;
+ if (self->is_secure_path)
+ {
+ params.flags |= GST_MEMORY_FLAG_LAST << 1; // in drmallocator GST_MEMORY_FLAG_LAST << 1 represent GST_MEMORY_FLAG_SECURE
+ GST_DEBUG_OBJECT(obj, "set secure flag for drmbufferpool flag:0x%x", params.flags);
+ }
+ config = gst_buffer_pool_get_config(other_pool);
+ gst_buffer_pool_config_set_allocator(config, allocator, ¶ms);
+ gst_buffer_pool_config_set_params(config, caps, size, own_min + DEFAULT_EXTRA_CAPTURE_BUF_SIZE, own_min + DEFAULT_EXTRA_CAPTURE_BUF_SIZE);
+ gst_buffer_pool_config_set_video_alignment(config, &obj->align);
+
+ GST_DEBUG_OBJECT(obj->dbg_obj, "setting other pool config to %" GST_PTR_FORMAT, config);
+
+ /* if downstream supports video metadata, add this to the pool config */
+ if (has_video_meta)
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj, "activate Video Meta");
+ gst_buffer_pool_config_add_option(config,
+ GST_BUFFER_POOL_OPTION_VIDEO_META);
+ }
+
+ if (!gst_buffer_pool_set_config(other_pool, config))
+ {
+ config = gst_buffer_pool_get_config(other_pool);
+
+ if (!gst_buffer_pool_config_validate_params(config, caps, size, min,
+ max))
+ {
+ gst_structure_free(config);
+ goto config_failed;
+ }
+
+ if (!gst_buffer_pool_set_config(other_pool, config))
+ goto config_failed;
+ }
+ }
+
+ if (pool)
+ {
+ /* For simplicity, simply read back the active configuration, so our base
+ * class get the right information */
+ config = gst_buffer_pool_get_config(pool);
+ gst_buffer_pool_config_get_params(config, NULL, &size, &min, &max);
+ gst_structure_free(config);
+ }
+
+ if (update)
+ gst_query_set_nth_allocation_pool(query, 0, pool, size, min, max);
+ else
+ gst_query_add_allocation_pool(query, pool, size, min, max);
+
+ if (allocator)
+ gst_object_unref(allocator);
+
+ if (pool)
+ gst_object_unref(pool);
+
+ return TRUE;
+
+pool_failed:
+{
+ /* setup_pool already send the error */
+ goto cleanup;
+}
+config_failed:
+{
+ GST_ELEMENT_ERROR(obj->element, RESOURCE, SETTINGS,
+ (_("Failed to configure internal buffer pool.")), (NULL));
+ goto cleanup;
+}
+no_size:
+{
+ GST_ELEMENT_ERROR(obj->element, RESOURCE, SETTINGS,
+ (_("Video device did not suggest any buffer size.")), (NULL));
+ goto cleanup;
+}
+cleanup:
+{
+ if (allocator)
+ gst_object_unref(allocator);
+
+ if (pool)
+ gst_object_unref(pool);
+ return FALSE;
+}
+no_downstream_pool:
+{
+ GST_ELEMENT_ERROR(obj->element, RESOURCE, SETTINGS,
+ (_("No downstream pool to import from.")),
+ ("When importing DMABUF or USERPTR, we need a pool to import from"));
+ return FALSE;
+}
+}
+
+gboolean
+gst_aml_v4l2_object_propose_allocation(GstAmlV4l2Object *obj, GstQuery *query)
+{
+ GstBufferPool *pool;
+ /* we need at least 2 buffers to operate */
+ guint size, min, max;
+ GstCaps *caps;
+ gboolean need_pool;
+
+ /* Set defaults allocation parameters */
+ size = obj->info.size;
+ min = GST_AML_V4L2_MIN_BUFFERS;
+ max = VIDEO_MAX_FRAME;
+
+ gst_query_parse_allocation(query, &caps, &need_pool);
+
+ if (caps == NULL)
+ goto no_caps;
+
+ switch (obj->mode)
+ {
+ case GST_V4L2_IO_MMAP:
+ case GST_V4L2_IO_DMABUF:
+ if ((pool = obj->pool))
+ gst_object_ref(pool);
+ break;
+ default:
+ pool = NULL;
+ break;
+ }
+
+ if (pool != NULL)
+ {
+ GstCaps *pcaps;
+ GstStructure *config;
+
+ /* we had a pool, check caps */
+ config = gst_buffer_pool_get_config(pool);
+ gst_buffer_pool_config_get_params(config, &pcaps, NULL, NULL, NULL);
+
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "we had a pool with caps %" GST_PTR_FORMAT, pcaps);
+ if (!gst_caps_is_equal(caps, pcaps))
+ {
+ gst_structure_free(config);
+ gst_object_unref(pool);
+ goto different_caps;
+ }
+ gst_structure_free(config);
+ }
+ gst_aml_v4l2_get_driver_min_buffers(obj);
+
+ min = MAX(obj->min_buffers, GST_AML_V4L2_MIN_BUFFERS);
+
+ gst_query_add_allocation_pool(query, pool, size, min, max);
+
+ /* we also support various metadata */
+ gst_query_add_allocation_meta(query, GST_VIDEO_META_API_TYPE, NULL);
+
+ if (pool)
+ gst_object_unref(pool);
+
+ return TRUE;
+
+ /* ERRORS */
+no_caps:
+{
+ GST_DEBUG_OBJECT(obj->dbg_obj, "no caps specified");
+ return FALSE;
+}
+different_caps:
+{
+ /* different caps, we can't use this pool */
+ GST_DEBUG_OBJECT(obj->dbg_obj, "pool has different caps");
+ return FALSE;
+}
+}
+
+gboolean
+gst_aml_v4l2_object_try_import(GstAmlV4l2Object *obj, GstBuffer *buffer)
+{
+ GstVideoMeta *vmeta;
+ guint n_mem = gst_buffer_n_memory(buffer);
+
+ /* only import if requested */
+ switch (obj->mode)
+ {
+ case GST_V4L2_IO_USERPTR:
+ case GST_V4L2_IO_DMABUF_IMPORT:
+ break;
+ default:
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "The io-mode does not enable importation");
+ return FALSE;
+ }
+
+ vmeta = gst_buffer_get_video_meta(buffer);
+ if (!vmeta && obj->need_video_meta)
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj, "Downstream buffer uses standard "
+ "stride/offset while the driver does not.");
+ return FALSE;
+ }
+
+ /* we need matching strides/offsets and size */
+ if (vmeta)
+ {
+ guint p;
+ gboolean need_fmt_update = FALSE;
+
+ if (vmeta->n_planes != GST_VIDEO_INFO_N_PLANES(&obj->info))
+ {
+ GST_WARNING_OBJECT(obj->dbg_obj,
+ "Cannot import buffers with different number planes");
+ return FALSE;
+ }
+
+ for (p = 0; p < vmeta->n_planes; p++)
+ {
+ if (vmeta->stride[p] < obj->info.stride[p])
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "Not importing as remote stride %i is smaller then %i on plane %u",
+ vmeta->stride[p], obj->info.stride[p], p);
+ return FALSE;
+ }
+ else if (vmeta->stride[p] > obj->info.stride[p])
+ {
+ need_fmt_update = TRUE;
+ }
+
+ if (vmeta->offset[p] < obj->info.offset[p])
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "Not importing as offset %" G_GSIZE_FORMAT
+ " is smaller then %" G_GSIZE_FORMAT " on plane %u",
+ vmeta->offset[p], obj->info.offset[p], p);
+ return FALSE;
+ }
+ else if (vmeta->offset[p] > obj->info.offset[p])
+ {
+ need_fmt_update = TRUE;
+ }
+ }
+
+ if (need_fmt_update)
+ {
+ struct v4l2_format format;
+ gint wanted_stride[GST_VIDEO_MAX_PLANES] = {
+ 0,
+ };
+
+ format = obj->format;
+
+ /* update the current format with the stride we want to import from */
+ if (V4L2_TYPE_IS_MULTIPLANAR(obj->type))
+ {
+ guint i;
+
+ GST_DEBUG_OBJECT(obj->dbg_obj, "Wanted strides:");
+
+ for (i = 0; i < obj->n_v4l2_planes; i++)
+ {
+ gint stride = vmeta->stride[i];
+
+ if (GST_VIDEO_FORMAT_INFO_IS_TILED(obj->info.finfo))
+ stride = GST_VIDEO_TILE_X_TILES(stride) << GST_VIDEO_FORMAT_INFO_TILE_WS(obj->info.finfo);
+
+ format.fmt.pix_mp.plane_fmt[i].bytesperline = stride;
+ wanted_stride[i] = stride;
+ GST_DEBUG_OBJECT(obj->dbg_obj, " [%u] %i", i, wanted_stride[i]);
+ }
+ }
+ else
+ {
+ gint stride = vmeta->stride[0];
+
+ GST_DEBUG_OBJECT(obj->dbg_obj, "Wanted stride: %i", stride);
+
+ if (GST_VIDEO_FORMAT_INFO_IS_TILED(obj->info.finfo))
+ stride = GST_VIDEO_TILE_X_TILES(stride) << GST_VIDEO_FORMAT_INFO_TILE_WS(obj->info.finfo);
+
+ format.fmt.pix.bytesperline = stride;
+ wanted_stride[0] = stride;
+ }
+
+ if (obj->ioctl(obj->video_fd, VIDIOC_S_FMT, &format) < 0)
+ {
+ GST_WARNING_OBJECT(obj->dbg_obj,
+ "Something went wrong trying to update current format: %s",
+ g_strerror(errno));
+ return FALSE;
+ }
+
+ gst_aml_v4l2_object_save_format(obj, obj->fmtdesc, &format, &obj->info,
+ &obj->align);
+
+ if (V4L2_TYPE_IS_MULTIPLANAR(obj->type))
+ {
+ guint i;
+
+ for (i = 0; i < obj->n_v4l2_planes; i++)
+ {
+ if (format.fmt.pix_mp.plane_fmt[i].bytesperline != wanted_stride[i])
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "[%i] Driver did not accept the new stride (wants %i, got %i)",
+ i, format.fmt.pix_mp.plane_fmt[i].bytesperline,
+ wanted_stride[i]);
+ return FALSE;
+ }
+ }
+ }
+ else
+ {
+ if (format.fmt.pix.bytesperline != wanted_stride[0])
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj,
+ "Driver did not accept the new stride (wants %i, got %i)",
+ format.fmt.pix.bytesperline, wanted_stride[0]);
+ return FALSE;
+ }
+ }
+ }
+ }
+
+ /* we can always import single memory buffer, but otherwise we need the same
+ * amount of memory object. */
+ if (n_mem != 1 && n_mem != obj->n_v4l2_planes)
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj, "Can only import %i memory, "
+ "buffers contains %u memory",
+ obj->n_v4l2_planes, n_mem);
+ return FALSE;
+ }
+
+ /* For DMABuf importation we need DMABuf of course */
+ if (obj->mode == GST_V4L2_IO_DMABUF_IMPORT)
+ {
+ guint i;
+
+ for (i = 0; i < n_mem; i++)
+ {
+ GstMemory *mem = gst_buffer_peek_memory(buffer, i);
+
+ if (!gst_is_dmabuf_memory(mem))
+ {
+ GST_DEBUG_OBJECT(obj->dbg_obj, "Cannot import non-DMABuf memory.");
+ return FALSE;
+ }
+ }
+ }
+
+ /* for the remaining, only the kernel driver can tell */
+ return TRUE;
+}
+
+gboolean gst_aml_v4l2_set_drm_mode(GstAmlV4l2Object *v4l2object)
+{
+ /* On AmLogic, output obj use of GST_V4L2_IO_DMABUF_IMPORT implies secure memory */
+ if (v4l2object->req_mode == GST_V4L2_IO_DMABUF_IMPORT)
+ {
+ int rc;
+ struct v4l2_queryctrl queryctrl;
+ struct v4l2_control control;
+
+ GstAmlV4l2VideoDec *self = (GstAmlV4l2VideoDec *)v4l2object->element;
+ self->is_secure_path = TRUE;
+
+#define V4L2_CID_USER_AMLOGIC_BASE (V4L2_CID_USER_BASE + 0x1100)
+#define AML_V4L2_SET_DRMMODE (V4L2_CID_USER_AMLOGIC_BASE + 0)
+ memset(&queryctrl, 0, sizeof(queryctrl));
+ queryctrl.id = AML_V4L2_SET_DRMMODE;
+
+ rc = v4l2object->ioctl(v4l2object->video_fd, VIDIOC_QUERYCTRL, &queryctrl);
+ if (rc == 0)
+ {
+ if (!(queryctrl.flags & V4L2_CTRL_FLAG_DISABLED))
+ {
+ memset(&control, 0, sizeof(control));
+ control.id = AML_V4L2_SET_DRMMODE;
+ control.value = 1;
+ rc = v4l2object->ioctl(v4l2object->video_fd, VIDIOC_S_CTRL, &control);
+ if (rc != 0)
+ {
+ GST_ERROR_OBJECT(v4l2object, "AML_V4L2_SET_DRMMODE fail: rc %d", rc);
+ return FALSE;
+ }
+ GST_DEBUG_OBJECT(v4l2object, "AML_V4L2_SET_DRMMODE set succ");
+ return TRUE;
+ }
+ else
+ {
+ GST_DEBUG_OBJECT(v4l2object, "AML_V4L2_SET_DRMMODE is disabled");
+ return TRUE;
+ }
+ }
+ else
+ {
+ GST_ERROR_OBJECT(v4l2object, "VIDIOC_QUERYCTRL for AML_V4L2_SET_DRMMODE fail");
+ return FALSE;
+ }
+ }
+ else
+ {
+ GST_DEBUG_OBJECT(v4l2object, "req mode is not GST_V4L2_IO_DMABUF_IMPORT, DRM mode does not need to be configured");
+ return TRUE;
+ }
+}
\ No newline at end of file