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/gstamlv4l2videodec.c b/src/gstamlv4l2videodec.c
new file mode 100644
index 0000000..f173492
--- /dev/null
+++ b/src/gstamlv4l2videodec.c
@@ -0,0 +1,1386 @@
+/* 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 <unistd.h>
+#include <string.h>
+
+#include "gstamlv4l2object.h"
+#include "gstamlv4l2videodec.h"
+
+#include <string.h>
+#include <gst/gst-i18n-plugin.h>
+#include <gst/allocators/gstdmabuf.h>
+
+GST_DEBUG_CATEGORY_STATIC(gst_aml_v4l2_video_dec_debug);
+#define GST_CAT_DEFAULT gst_aml_v4l2_video_dec_debug
+
+#ifdef GST_VIDEO_DECODER_STREAM_LOCK
+#undef GST_VIDEO_DECODER_STREAM_LOCK
+#define GST_VIDEO_DECODER_STREAM_LOCK(decoder) \
+ { \
+ GST_DEBUG("aml v4l2 dec locking"); \
+ g_rec_mutex_lock(&GST_VIDEO_DECODER(decoder)->stream_lock); \
+ GST_DEBUG("aml v4l2 dec locked"); \
+ }
+#endif
+
+#ifdef GST_VIDEO_DECODER_STREAM_UNLOCK
+#undef GST_VIDEO_DECODER_STREAM_UNLOCK
+#define GST_VIDEO_DECODER_STREAM_UNLOCK(decoder) \
+ { \
+ g_rec_mutex_unlock(&GST_VIDEO_DECODER(decoder)->stream_lock); \
+ GST_DEBUG("aml v4l2 dec unlocked"); \
+ }
+#endif
+typedef struct
+{
+ gchar *device;
+ GstCaps *sink_caps;
+ GstCaps *src_caps;
+ const gchar *longname;
+ const gchar *description;
+} GstAmlV4l2VideoDecCData;
+
+enum
+{
+ PROP_0,
+ V4L2_STD_OBJECT_PROPS
+};
+
+#define gst_aml_v4l2_video_dec_parent_class parent_class
+G_DEFINE_ABSTRACT_TYPE(GstAmlV4l2VideoDec, gst_aml_v4l2_video_dec,
+ GST_TYPE_VIDEO_DECODER);
+
+static GstFlowReturn gst_aml_v4l2_video_dec_finish(GstVideoDecoder *decoder);
+
+static void
+gst_aml_v4l2_video_dec_set_property(GObject *object,
+ guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(object);
+
+ switch (prop_id)
+ {
+ case PROP_CAPTURE_IO_MODE:
+ if (!gst_aml_v4l2_object_set_property_helper(self->v4l2capture,
+ prop_id, value, pspec))
+ {
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+ }
+ break;
+ case PROP_DUMP_FRAME_LOCATION:
+ if (!gst_aml_v4l2_object_set_property_helper(self->v4l2capture,
+ prop_id, value, pspec))
+ {
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+ }
+ break;
+
+ /* By default, only set on output */
+ default:
+ if (!gst_aml_v4l2_object_set_property_helper(self->v4l2output,
+ prop_id, value, pspec))
+ {
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+ }
+ break;
+ }
+}
+
+static void
+gst_aml_v4l2_video_dec_get_property(GObject *object,
+ guint prop_id, GValue *value, GParamSpec *pspec)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(object);
+
+ switch (prop_id)
+ {
+ case PROP_CAPTURE_IO_MODE:
+ if (!gst_aml_v4l2_object_get_property_helper(self->v4l2capture,
+ prop_id, value, pspec))
+ {
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+ }
+ break;
+
+ /* By default read from output */
+ default:
+ if (!gst_aml_v4l2_object_get_property_helper(self->v4l2output,
+ prop_id, value, pspec))
+ {
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+ }
+ break;
+ }
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_open(GstVideoDecoder *decoder)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+ GstCaps *codec_caps;
+
+ GST_DEBUG_OBJECT(self, "Opening");
+
+ if (!gst_aml_v4l2_object_open(self->v4l2output))
+ goto failure;
+
+ if (!gst_aml_v4l2_object_open_shared(self->v4l2capture, self->v4l2output))
+ goto failure;
+
+ codec_caps = gst_pad_get_pad_template_caps(decoder->sinkpad);
+ self->probed_sinkcaps = gst_aml_v4l2_object_probe_caps(self->v4l2output,
+ codec_caps);
+ gst_caps_unref(codec_caps);
+
+ if (gst_caps_is_empty(self->probed_sinkcaps))
+ goto no_encoded_format;
+
+ return TRUE;
+
+no_encoded_format:
+ GST_ELEMENT_ERROR(self, RESOURCE, SETTINGS,
+ (_("Decoder on device %s has no supported input format"),
+ self->v4l2output->videodev),
+ (NULL));
+ goto failure;
+
+failure:
+ if (GST_AML_V4L2_IS_OPEN(self->v4l2output))
+ gst_aml_v4l2_object_close(self->v4l2output);
+
+ if (GST_AML_V4L2_IS_OPEN(self->v4l2capture))
+ gst_aml_v4l2_object_close(self->v4l2capture);
+
+ gst_caps_replace(&self->probed_srccaps, NULL);
+ gst_caps_replace(&self->probed_sinkcaps, NULL);
+
+ return FALSE;
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_close(GstVideoDecoder *decoder)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+
+ GST_DEBUG_OBJECT(self, "Closing");
+
+ gst_aml_v4l2_object_close(self->v4l2output);
+ gst_aml_v4l2_object_close(self->v4l2capture);
+ gst_caps_replace(&self->probed_srccaps, NULL);
+ gst_caps_replace(&self->probed_sinkcaps, NULL);
+
+ return TRUE;
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_start(GstVideoDecoder *decoder)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+
+ GST_DEBUG_OBJECT(self, "Starting");
+
+ gst_aml_v4l2_object_unlock(self->v4l2output);
+ g_atomic_int_set(&self->active, TRUE);
+ self->output_flow = GST_FLOW_OK;
+
+ return TRUE;
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_stop(GstVideoDecoder *decoder)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+
+ GST_DEBUG_OBJECT(self, "Stopping");
+
+ gst_aml_v4l2_object_unlock(self->v4l2output);
+ gst_aml_v4l2_object_unlock(self->v4l2capture);
+
+ /* Wait for capture thread to stop */
+ gst_pad_stop_task(decoder->srcpad);
+
+ GST_VIDEO_DECODER_STREAM_LOCK(decoder);
+ self->output_flow = GST_FLOW_OK;
+ GST_VIDEO_DECODER_STREAM_UNLOCK(decoder);
+
+ /* Should have been flushed already */
+ g_assert(g_atomic_int_get(&self->active) == FALSE);
+
+ gst_aml_v4l2_object_stop(self->v4l2output);
+ gst_aml_v4l2_object_stop(self->v4l2capture);
+
+ if (self->input_state)
+ {
+ gst_video_codec_state_unref(self->input_state);
+ self->input_state = NULL;
+ }
+
+ GST_DEBUG_OBJECT(self, "Stopped");
+
+ return TRUE;
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_set_format(GstVideoDecoder *decoder,
+ GstVideoCodecState *state)
+{
+ GstAmlV4l2Error error = GST_AML_V4L2_ERROR_INIT;
+ gboolean ret = TRUE;
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+ GstCaps *caps;
+
+ GST_DEBUG_OBJECT(self, "Setting format: %" GST_PTR_FORMAT, state->caps);
+ GstCapsFeatures *const features = gst_caps_get_features(state->caps, 0);
+
+ if (gst_caps_features_contains(features, GST_CAPS_FEATURE_MEMORY_DMABUF))
+ self->v4l2output->req_mode = GST_V4L2_IO_DMABUF_IMPORT;
+
+ if (self->input_state)
+ {
+ if (gst_aml_v4l2_object_caps_equal(self->v4l2output, state->caps))
+ {
+ GST_DEBUG_OBJECT(self, "Compatible caps");
+ goto done;
+ }
+ gst_video_codec_state_unref(self->input_state);
+ self->input_state = NULL;
+
+ gst_aml_v4l2_video_dec_finish(decoder);
+ gst_aml_v4l2_object_stop(self->v4l2output);
+
+ /* The renegotiation flow don't blend with the base class flow. To properly
+ * stop the capture pool, if the buffers can't be orphaned, we need to
+ * reclaim our buffers, which will happend through the allocation query.
+ * The allocation query is triggered by gst_video_decoder_negotiate() which
+ * requires the output caps to be set, but we can't know this information
+ * as we rely on the decoder, which requires the capture queue to be
+ * stopped.
+ *
+ * To workaround this issue, we simply run an allocation query with the
+ * old negotiated caps in order to drain/reclaim our buffers. That breaks
+ * the complexity and should not have much impact in performance since the
+ * following allocation query will happen on a drained pipeline and won't
+ * block. */
+ if (self->v4l2capture->pool &&
+ !gst_aml_v4l2_buffer_pool_orphan(&self->v4l2capture->pool))
+ {
+ GstCaps *caps = gst_pad_get_current_caps(decoder->srcpad);
+ if (caps)
+ {
+ GstQuery *query = gst_query_new_allocation(caps, FALSE);
+ gst_pad_peer_query(decoder->srcpad, query);
+ gst_query_unref(query);
+ gst_caps_unref(caps);
+ }
+ }
+
+ gst_aml_v4l2_object_stop(self->v4l2capture);
+ self->output_flow = GST_FLOW_OK;
+ }
+
+ if ((ret = gst_aml_v4l2_set_drm_mode(self->v4l2output)) == FALSE)
+ {
+ GST_ERROR_OBJECT(self, "config output drm mode error");
+ goto done;
+ }
+
+ ret = gst_aml_v4l2_object_set_format(self->v4l2output, state->caps, &error);
+
+ gst_caps_replace(&self->probed_srccaps, NULL);
+ self->probed_srccaps = gst_aml_v4l2_object_probe_caps(self->v4l2capture,
+ gst_aml_v4l2_object_get_raw_caps());
+
+ if (gst_caps_is_empty(self->probed_srccaps))
+ goto no_raw_format;
+
+ caps = gst_caps_copy(self->probed_srccaps);
+ gst_caps_set_features_simple(caps, gst_caps_features_from_string(GST_CAPS_FEATURE_MEMORY_DMABUF));
+ gst_caps_append(self->probed_srccaps, caps);
+ if (ret)
+ self->input_state = gst_video_codec_state_ref(state);
+ else
+ gst_aml_v4l2_error(self, &error);
+
+done:
+ return ret;
+
+no_raw_format:
+ GST_ELEMENT_ERROR(self, RESOURCE, SETTINGS,
+ (_("Decoder on device %s has no supported output format"),
+ self->v4l2output->videodev),
+ (NULL));
+ return GST_FLOW_ERROR;
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_flush(GstVideoDecoder *decoder)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+
+ GST_DEBUG_OBJECT(self, "Flushed");
+
+ /* Ensure the processing thread has stopped for the reverse playback
+ * discount case */
+ if (gst_pad_get_task_state(decoder->srcpad) == GST_TASK_STARTED)
+ {
+ GST_VIDEO_DECODER_STREAM_UNLOCK(decoder);
+
+ gst_aml_v4l2_object_unlock(self->v4l2output);
+ gst_aml_v4l2_object_unlock(self->v4l2capture);
+ gst_pad_stop_task(decoder->srcpad);
+ GST_VIDEO_DECODER_STREAM_LOCK(decoder);
+ }
+
+ self->output_flow = GST_FLOW_OK;
+
+ gst_aml_v4l2_object_unlock_stop(self->v4l2output);
+ gst_aml_v4l2_object_unlock_stop(self->v4l2capture);
+
+ if (self->v4l2output->pool)
+ gst_aml_v4l2_buffer_pool_flush(self->v4l2output->pool);
+
+ /* gst_aml_v4l2_buffer_pool_flush() calls streamon the capture pool and must be
+ * called after gst_aml_v4l2_object_unlock_stop() stopped flushing the buffer
+ * pool. */
+ if (self->v4l2capture->pool)
+ gst_aml_v4l2_buffer_pool_flush(self->v4l2capture->pool);
+
+ return TRUE;
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_negotiate(GstVideoDecoder *decoder)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+
+ /* We don't allow renegotiation without carefull disabling the pool */
+ if (self->v4l2capture->pool &&
+ gst_buffer_pool_is_active(GST_BUFFER_POOL(self->v4l2capture->pool)))
+ return TRUE;
+
+ return GST_VIDEO_DECODER_CLASS(parent_class)->negotiate(decoder);
+}
+
+static gboolean
+gst_aml_v4l2_decoder_cmd(GstAmlV4l2Object *v4l2object, guint cmd, guint flags)
+{
+ struct v4l2_decoder_cmd dcmd = {
+ 0,
+ };
+
+ GST_DEBUG_OBJECT(v4l2object->element,
+ "sending v4l2 decoder command %u with flags %u", cmd, flags);
+
+ if (!GST_AML_V4L2_IS_OPEN(v4l2object))
+ return FALSE;
+
+ dcmd.cmd = cmd;
+ dcmd.flags = flags;
+ if (v4l2object->ioctl(v4l2object->video_fd, VIDIOC_DECODER_CMD, &dcmd) < 0)
+ goto dcmd_failed;
+
+ return TRUE;
+
+dcmd_failed:
+ if (errno == ENOTTY)
+ {
+ GST_INFO_OBJECT(v4l2object->element,
+ "Failed to send decoder command %u with flags %u for '%s'. (%s)",
+ cmd, flags, v4l2object->videodev, g_strerror(errno));
+ }
+ else
+ {
+ GST_ERROR_OBJECT(v4l2object->element,
+ "Failed to send decoder command %u with flags %u for '%s'. (%s)",
+ cmd, flags, v4l2object->videodev, g_strerror(errno));
+ }
+ return FALSE;
+}
+
+static GstFlowReturn
+gst_aml_v4l2_video_dec_finish(GstVideoDecoder *decoder)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+ GstFlowReturn ret = GST_FLOW_OK;
+ GstBuffer *buffer;
+
+ if (gst_pad_get_task_state(decoder->srcpad) != GST_TASK_STARTED)
+ goto done;
+
+ GST_DEBUG_OBJECT(self, "Finishing decoding");
+
+ GST_VIDEO_DECODER_STREAM_UNLOCK(decoder);
+
+ if (gst_aml_v4l2_decoder_cmd(self->v4l2output, V4L2_DEC_CMD_STOP, 0))
+ {
+ GstTask *task = decoder->srcpad->task;
+
+ /* If the decoder stop command succeeded, just wait until processing is
+ * finished */
+ GST_DEBUG_OBJECT(self, "Waiting for decoder stop");
+ GST_OBJECT_LOCK(task);
+ while (GST_TASK_STATE(task) == GST_TASK_STARTED)
+ GST_TASK_WAIT(task);
+ GST_OBJECT_UNLOCK(task);
+ ret = GST_FLOW_FLUSHING;
+ }
+ else
+ {
+ /* otherwise keep queuing empty buffers until the processing thread has
+ * stopped, _pool_process() will return FLUSHING when that happened */
+ while (ret == GST_FLOW_OK)
+ {
+ buffer = gst_buffer_new();
+ ret =
+ gst_aml_v4l2_buffer_pool_process(GST_AML_V4L2_BUFFER_POOL(self->v4l2output->pool), &buffer);
+ gst_buffer_unref(buffer);
+ }
+ }
+
+ /* and ensure the processing thread has stopped in case another error
+ * occured. */
+ gst_aml_v4l2_object_unlock(self->v4l2capture);
+ gst_pad_stop_task(decoder->srcpad);
+ GST_VIDEO_DECODER_STREAM_LOCK(decoder);
+
+ if (ret == GST_FLOW_FLUSHING)
+ ret = self->output_flow;
+
+ GST_DEBUG_OBJECT(decoder, "Done draining buffers");
+
+ /* TODO Shall we cleanup any reffed frame to workaround broken decoders ? */
+
+done:
+ return ret;
+}
+
+static GstFlowReturn
+gst_aml_v4l2_video_dec_drain(GstVideoDecoder *decoder)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+
+ GST_DEBUG_OBJECT(self, "Draining...");
+ gst_aml_v4l2_video_dec_finish(decoder);
+ gst_aml_v4l2_video_dec_flush(decoder);
+
+ return GST_FLOW_OK;
+}
+
+static GstVideoCodecFrame *
+gst_aml_v4l2_video_dec_get_oldest_frame(GstVideoDecoder *decoder)
+{
+ GstVideoCodecFrame *frame = NULL;
+ GList *frames, *l;
+ gint count = 0;
+
+ frames = gst_video_decoder_get_frames(decoder);
+
+ for (l = frames; l != NULL; l = l->next)
+ {
+ GstVideoCodecFrame *f = l->data;
+
+ if (!frame || (GST_CLOCK_TIME_IS_VALID(frame->pts) && GST_CLOCK_TIME_IS_VALID(f->pts) && (frame->pts > f->pts)))
+ frame = f;
+
+ count++;
+ }
+
+ if (frame)
+ {
+ GST_LOG_OBJECT(decoder,
+ "Oldest frame is %d %" GST_TIME_FORMAT " and %d frames left",
+ frame->system_frame_number, GST_TIME_ARGS(frame->pts), count - 1);
+ gst_video_codec_frame_ref(frame);
+ }
+
+ g_list_free_full(frames, (GDestroyNotify)gst_video_codec_frame_unref);
+
+ return frame;
+}
+
+static gboolean
+gst_aml_v4l2_video_remove_padding(GstCapsFeatures *features,
+ GstStructure *structure, gpointer user_data)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(user_data);
+ GstVideoAlignment *align = &self->v4l2capture->align;
+ GstVideoInfo *info = &self->v4l2capture->info;
+ int width, height;
+
+ if (!gst_structure_get_int(structure, "width", &width))
+ return TRUE;
+
+ if (!gst_structure_get_int(structure, "height", &height))
+ return TRUE;
+
+ if (align->padding_left != 0 || align->padding_top != 0 ||
+ height != info->height + align->padding_bottom)
+ return TRUE;
+
+ if (height == info->height + align->padding_bottom)
+ {
+ /* Some drivers may round up width to the padded with */
+ if (width == info->width + align->padding_right)
+ gst_structure_set(structure,
+ "width", G_TYPE_INT, width - align->padding_right,
+ "height", G_TYPE_INT, height - align->padding_bottom, NULL);
+ /* Some drivers may keep visible width and only round up bytesperline */
+ else if (width == info->width)
+ gst_structure_set(structure,
+ "height", G_TYPE_INT, height - align->padding_bottom, NULL);
+ }
+
+ return TRUE;
+}
+
+static void
+gst_aml_v4l2_video_dec_loop(GstVideoDecoder *decoder)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+ GstAmlV4l2BufferPool *v4l2_pool;
+ GstAmlV4l2Error error = GST_AML_V4L2_ERROR_INIT;
+ GstBufferPool *pool;
+ GstVideoCodecFrame *frame;
+ GstBuffer *buffer = NULL;
+ GstFlowReturn ret;
+
+ if (G_UNLIKELY(!GST_AML_V4L2_IS_ACTIVE(self->v4l2capture)))
+ {
+ GstVideoInfo info;
+ GstVideoCodecState *output_state;
+ GstCaps *acquired_caps, *available_caps, *caps, *filter;
+ GstStructure *st;
+
+ GST_DEBUG_OBJECT(self, "waitting source change event");
+ /* Wait until received SOURCE_CHANGE event to get right video format */
+ while (self->v4l2capture->can_wait_event && self->v4l2capture->need_wait_event)
+ {
+ ret = gst_aml_v4l2_object_dqevent(self->v4l2capture);
+ if (ret == GST_AML_V4L2_FLOW_SOURCE_CHANGE)
+ {
+ GST_DEBUG_OBJECT(self, "Received source change event");
+ break;
+ }
+ else if (ret == GST_AML_V4L2_FLOW_LAST_BUFFER)
+ {
+ GST_DEBUG_OBJECT(self, "Received eos event");
+ goto beach;
+ }
+ else if (ret != GST_FLOW_OK)
+ {
+ GST_ERROR_OBJECT(self, "dqevent error");
+ goto beach;
+ }
+ }
+ self->v4l2capture->need_wait_event = FALSE;
+
+ if (!gst_aml_v4l2_object_acquire_format(self->v4l2capture, &info))
+ goto not_negotiated;
+
+ /* Create caps from the acquired format, remove the format field */
+ acquired_caps = gst_video_info_to_caps(&info);
+ GST_DEBUG_OBJECT(self, "Acquired caps: %" GST_PTR_FORMAT, acquired_caps);
+ st = gst_caps_get_structure(acquired_caps, 0);
+ gst_structure_remove_fields(st, "format", "colorimetry", "chroma-site",
+ NULL);
+
+ /* Probe currently available pixel formats */
+ available_caps = gst_caps_copy(self->probed_srccaps);
+ GST_DEBUG_OBJECT(self, "Available caps: %" GST_PTR_FORMAT, available_caps);
+
+ /* Replace coded size with visible size, we want to negotiate visible size
+ * with downstream, not coded size. */
+ gst_caps_map_in_place(available_caps, gst_aml_v4l2_video_remove_padding, self);
+
+ filter = gst_caps_intersect_full(available_caps, acquired_caps,
+ GST_CAPS_INTERSECT_FIRST);
+ caps = gst_caps_copy(filter);
+ gst_caps_set_features_simple(caps, gst_caps_features_from_string(GST_CAPS_FEATURE_MEMORY_DMABUF));
+ gst_caps_append(filter, caps);
+
+ GST_DEBUG_OBJECT(self, "Filtered caps: %" GST_PTR_FORMAT, filter);
+ gst_caps_unref(acquired_caps);
+ gst_caps_unref(available_caps);
+ caps = gst_pad_peer_query_caps(decoder->srcpad, filter);
+ gst_caps_unref(filter);
+
+ GST_DEBUG_OBJECT(self, "Possible decoded caps: %" GST_PTR_FORMAT, caps);
+ if (gst_caps_is_empty(caps))
+ {
+ gst_caps_unref(caps);
+ goto not_negotiated;
+ }
+
+ /* Fixate pixel format */
+ caps = gst_caps_fixate(caps);
+
+ GST_DEBUG_OBJECT(self, "Chosen decoded caps: %" GST_PTR_FORMAT, caps);
+
+ /* Try to set negotiated format, on success replace acquired format */
+ if (gst_aml_v4l2_object_set_format(self->v4l2capture, caps, &error))
+ gst_video_info_from_caps(&info, caps);
+ else
+ gst_aml_v4l2_clear_error(&error);
+ gst_caps_unref(caps);
+
+ output_state = gst_video_decoder_set_output_state(decoder,
+ info.finfo->format, info.width, info.height, self->input_state);
+
+ /* Copy the rest of the information, there might be more in the future */
+ output_state->info.interlace_mode = info.interlace_mode;
+ gst_video_codec_state_unref(output_state);
+
+ if (!gst_video_decoder_negotiate(decoder))
+ {
+ if (GST_PAD_IS_FLUSHING(decoder->srcpad))
+ goto flushing;
+ else
+ goto not_negotiated;
+ }
+
+ /* Ensure our internal pool is activated */
+ if (!gst_buffer_pool_set_active(GST_BUFFER_POOL(self->v4l2capture->pool),
+ TRUE))
+ goto activate_failed;
+ }
+
+ GST_LOG_OBJECT(decoder, "Allocate output buffer");
+
+ v4l2_pool = GST_AML_V4L2_BUFFER_POOL(self->v4l2capture->pool);
+
+ self->output_flow = GST_FLOW_OK;
+ do
+ {
+ /* We cannot use the base class allotate helper since it taking the internal
+ * stream lock. we know that the acquire may need to poll until more frames
+ * comes in and holding this lock would prevent that.
+ */
+ pool = gst_video_decoder_get_buffer_pool(decoder);
+
+ /* Pool may be NULL if we started going to READY state */
+ if (pool == NULL)
+ {
+ ret = GST_FLOW_FLUSHING;
+ goto beach;
+ }
+
+ ret = gst_buffer_pool_acquire_buffer(pool, &buffer, NULL);
+ g_object_unref(pool);
+
+ if (ret != GST_FLOW_OK)
+ goto beach;
+
+ GST_LOG_OBJECT(decoder, "Process output buffer");
+ ret = gst_aml_v4l2_buffer_pool_process(v4l2_pool, &buffer);
+ if (ret == GST_AML_V4L2_FLOW_SOURCE_CHANGE)
+ {
+ gst_aml_v4l2_object_stop(self->v4l2capture);
+ return;
+ }
+
+ } while (ret == GST_AML_V4L2_FLOW_CORRUPTED_BUFFER);
+
+ if (ret != GST_FLOW_OK)
+ goto beach;
+
+ frame = gst_aml_v4l2_video_dec_get_oldest_frame(decoder);
+
+ if (frame)
+ {
+ frame->output_buffer = buffer;
+ buffer = NULL;
+ ret = gst_video_decoder_finish_frame(decoder, frame);
+
+ if (ret != GST_FLOW_OK)
+ goto beach;
+ }
+ else
+ {
+ GST_WARNING_OBJECT(decoder, "Decoder is producing too many buffers");
+ gst_buffer_unref(buffer);
+ }
+
+ return;
+ /* ERRORS */
+not_negotiated:
+{
+ GST_ERROR_OBJECT(self, "not negotiated");
+ ret = GST_FLOW_NOT_NEGOTIATED;
+ goto beach;
+}
+activate_failed:
+{
+ GST_ERROR_OBJECT(self, "Buffer pool activation failed");
+ GST_ELEMENT_ERROR(self, RESOURCE, SETTINGS,
+ (_("Failed to allocate required memory.")),
+ ("Buffer pool activation failed"));
+ ret = GST_FLOW_ERROR;
+ goto beach;
+}
+flushing:
+{
+ ret = GST_FLOW_FLUSHING;
+ goto beach;
+}
+beach:
+ GST_DEBUG_OBJECT(decoder, "Leaving output thread: %s",
+ gst_flow_get_name(ret));
+
+ gst_buffer_replace(&buffer, NULL);
+ self->output_flow = ret;
+ gst_aml_v4l2_object_unlock(self->v4l2output);
+ gst_pad_pause_task(decoder->srcpad);
+}
+
+static GstFlowReturn
+gst_aml_v4l2_video_dec_handle_frame(GstVideoDecoder *decoder,
+ GstVideoCodecFrame *frame)
+{
+ GstAmlV4l2Error error = GST_AML_V4L2_ERROR_INIT;
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+ GstBufferPool *pool = GST_BUFFER_POOL(self->v4l2output->pool);
+ GstFlowReturn ret = GST_FLOW_OK;
+ gboolean processed = FALSE;
+ GstBuffer *tmp;
+ GstTaskState task_state;
+ GstCaps *caps;
+
+ GST_DEBUG_OBJECT(self, "Handling frame %d", frame->system_frame_number);
+
+ if (G_UNLIKELY(!g_atomic_int_get(&self->active)))
+ goto flushing;
+
+ if (G_UNLIKELY(!GST_AML_V4L2_IS_ACTIVE(self->v4l2output)))
+ {
+ if (!self->input_state)
+ goto not_negotiated;
+ if (!gst_aml_v4l2_object_set_format(self->v4l2output, self->input_state->caps,
+ &error))
+ goto not_negotiated;
+ }
+
+ if (G_UNLIKELY(!GST_AML_V4L2_IS_ACTIVE(self->v4l2capture)))
+ {
+ GstBuffer *codec_data;
+
+ GST_DEBUG_OBJECT(self, "Sending header");
+
+ codec_data = self->input_state->codec_data;
+
+ /* We are running in byte-stream mode, so we don't know the headers, but
+ * we need to send something, otherwise the decoder will refuse to
+ * intialize.
+ */
+ if (codec_data)
+ {
+ gst_buffer_ref(codec_data);
+ }
+ else
+ {
+ codec_data = gst_buffer_ref(frame->input_buffer);
+ processed = TRUE;
+ }
+
+ /* Ensure input internal pool is active */
+ if (!gst_buffer_pool_is_active(pool))
+ {
+ GstStructure *config = gst_buffer_pool_get_config(pool);
+ guint min = MAX(self->v4l2output->min_buffers, GST_AML_V4L2_MIN_BUFFERS);
+ guint max = VIDEO_MAX_FRAME;
+
+ // gst_buffer_pool_config_set_params (config, self->input_state->caps,
+ // self->v4l2output->info.size, min, max);
+ gst_buffer_pool_config_set_params(config, self->input_state->caps, self->v4l2output->info.size, self->v4l2output->min_buffers, self->v4l2output->min_buffers);
+
+ /* There is no reason to refuse this config */
+ if (!gst_buffer_pool_set_config(pool, config))
+ goto activate_failed;
+
+ if (!gst_buffer_pool_set_active(pool, TRUE))
+ goto activate_failed;
+ }
+
+ GST_VIDEO_DECODER_STREAM_UNLOCK(decoder);
+ ret =
+ gst_aml_v4l2_buffer_pool_process(GST_AML_V4L2_BUFFER_POOL(self->v4l2output->pool), &codec_data);
+ GST_VIDEO_DECODER_STREAM_LOCK(decoder);
+
+ gst_buffer_unref(codec_data);
+
+ /* For decoders G_FMT returns coded size, G_SELECTION returns visible size
+ * in the compose rectangle. gst_aml_v4l2_object_acquire_format() checks both
+ * and returns the visible size as with/height and the coded size as
+ * padding. */
+ }
+
+ task_state = gst_pad_get_task_state(GST_VIDEO_DECODER_SRC_PAD(self));
+ if (task_state == GST_TASK_STOPPED || task_state == GST_TASK_PAUSED)
+ {
+ /* It's possible that the processing thread stopped due to an error */
+ if (self->output_flow != GST_FLOW_OK &&
+ self->output_flow != GST_FLOW_FLUSHING)
+ {
+ GST_DEBUG_OBJECT(self, "Processing loop stopped with error, leaving");
+ ret = self->output_flow;
+ goto drop;
+ }
+
+ GST_DEBUG_OBJECT(self, "Starting decoding thread");
+
+ /* Start the processing task, when it quits, the task will disable input
+ * processing to unlock input if draining, or prevent potential block */
+ self->output_flow = GST_FLOW_FLUSHING;
+ if (!gst_pad_start_task(decoder->srcpad,
+ (GstTaskFunction)gst_aml_v4l2_video_dec_loop, self, NULL))
+ goto start_task_failed;
+ }
+
+ if (!processed)
+ {
+ GST_VIDEO_DECODER_STREAM_UNLOCK(decoder);
+ ret =
+ gst_aml_v4l2_buffer_pool_process(GST_AML_V4L2_BUFFER_POOL(self->v4l2output->pool), &frame->input_buffer);
+ GST_VIDEO_DECODER_STREAM_LOCK(decoder);
+
+ if (ret == GST_FLOW_FLUSHING)
+ {
+ if (gst_pad_get_task_state(GST_VIDEO_DECODER_SRC_PAD(self)) !=
+ GST_TASK_STARTED)
+ ret = self->output_flow;
+ goto drop;
+ }
+ else if (ret != GST_FLOW_OK)
+ {
+ goto process_failed;
+ }
+ }
+
+ /* No need to keep input arround */
+ tmp = frame->input_buffer;
+ frame->input_buffer = gst_buffer_new();
+ gst_buffer_copy_into(frame->input_buffer, tmp,
+ GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS |
+ GST_BUFFER_COPY_META,
+ 0, 0);
+ gst_buffer_unref(tmp);
+
+ gst_video_codec_frame_unref(frame);
+ return ret;
+
+ /* ERRORS */
+not_negotiated:
+{
+ GST_ERROR_OBJECT(self, "not negotiated");
+ ret = GST_FLOW_NOT_NEGOTIATED;
+ gst_aml_v4l2_error(self, &error);
+ goto drop;
+}
+activate_failed:
+{
+ GST_ELEMENT_ERROR(self, RESOURCE, SETTINGS,
+ (_("Failed to allocate required memory.")),
+ ("Buffer pool activation failed"));
+ ret = GST_FLOW_ERROR;
+ goto drop;
+}
+flushing:
+{
+ ret = GST_FLOW_FLUSHING;
+ goto drop;
+}
+
+start_task_failed:
+{
+ GST_ELEMENT_ERROR(self, RESOURCE, FAILED,
+ (_("Failed to start decoding thread.")), (NULL));
+ ret = GST_FLOW_ERROR;
+ goto drop;
+}
+process_failed:
+{
+ GST_ELEMENT_ERROR(self, RESOURCE, FAILED,
+ (_("Failed to process frame.")),
+ ("Maybe be due to not enough memory or failing driver"));
+ ret = GST_FLOW_ERROR;
+ goto drop;
+}
+drop:
+{
+ gst_video_decoder_drop_frame(decoder, frame);
+ return ret;
+}
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_decide_allocation(GstVideoDecoder *decoder,
+ GstQuery *query)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+ GstClockTime latency;
+ gboolean ret = FALSE;
+
+ if (gst_aml_v4l2_object_decide_allocation(self->v4l2capture, query))
+ ret = GST_VIDEO_DECODER_CLASS(parent_class)->decide_allocation(decoder, query);
+
+ if (GST_CLOCK_TIME_IS_VALID(self->v4l2capture->duration))
+ {
+ latency = self->v4l2capture->min_buffers * self->v4l2capture->duration;
+ GST_DEBUG_OBJECT(self, "Setting latency: %" GST_TIME_FORMAT " (%" G_GUINT32_FORMAT " * %" G_GUINT64_FORMAT, GST_TIME_ARGS(latency),
+ self->v4l2capture->min_buffers, self->v4l2capture->duration);
+ gst_video_decoder_set_latency(decoder, latency, latency);
+ }
+ else
+ {
+ GST_WARNING_OBJECT(self, "Duration invalid, not setting latency");
+ }
+
+ return ret;
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_src_query(GstVideoDecoder *decoder, GstQuery *query)
+{
+ gboolean ret = TRUE;
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+
+ switch (GST_QUERY_TYPE(query))
+ {
+ case GST_QUERY_CAPS:
+ {
+ GstCaps *filter, *result = NULL;
+ GstPad *pad = GST_VIDEO_DECODER_SRC_PAD(decoder);
+
+ gst_query_parse_caps(query, &filter);
+
+ if (self->probed_srccaps)
+ result = gst_caps_ref(self->probed_srccaps);
+ else
+ result = gst_pad_get_pad_template_caps(pad);
+
+ if (filter)
+ {
+ GstCaps *tmp = result;
+ result =
+ gst_caps_intersect_full(filter, tmp, GST_CAPS_INTERSECT_FIRST);
+ gst_caps_unref(tmp);
+ }
+
+ GST_DEBUG_OBJECT(self, "Returning src caps %" GST_PTR_FORMAT, result);
+
+ gst_query_set_caps_result(query, result);
+ gst_caps_unref(result);
+ break;
+ }
+
+ default:
+ ret = GST_VIDEO_DECODER_CLASS(parent_class)->src_query(decoder, query);
+ break;
+ }
+
+ return ret;
+}
+
+static GstCaps *
+gst_aml_v4l2_video_dec_sink_getcaps(GstVideoDecoder *decoder, GstCaps *filter)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+ GstCaps *result;
+
+ result = gst_video_decoder_proxy_getcaps(decoder, self->probed_sinkcaps,
+ filter);
+
+ GST_DEBUG_OBJECT(self, "Returning sink caps %" GST_PTR_FORMAT, result);
+
+ return result;
+}
+
+static gboolean
+gst_aml_v4l2_video_dec_sink_event(GstVideoDecoder *decoder, GstEvent *event)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(decoder);
+ gboolean ret;
+ GstEventType type = GST_EVENT_TYPE(event);
+
+ switch (type)
+ {
+ case GST_EVENT_FLUSH_START:
+ GST_DEBUG_OBJECT(self, "flush start");
+ gst_aml_v4l2_object_unlock(self->v4l2output);
+ gst_aml_v4l2_object_unlock(self->v4l2capture);
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_VIDEO_DECODER_CLASS(parent_class)->sink_event(decoder, event);
+
+ switch (type)
+ {
+ case GST_EVENT_FLUSH_START:
+ /* The processing thread should stop now, wait for it */
+ gst_pad_stop_task(decoder->srcpad);
+ GST_DEBUG_OBJECT(self, "flush start done");
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static GstStateChangeReturn
+gst_aml_v4l2_video_dec_change_state(GstElement *element,
+ GstStateChange transition)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(element);
+ GstVideoDecoder *decoder = GST_VIDEO_DECODER(element);
+
+ if (transition == GST_STATE_CHANGE_PAUSED_TO_READY)
+ {
+ g_atomic_int_set(&self->active, FALSE);
+ gst_aml_v4l2_object_unlock(self->v4l2output);
+ gst_aml_v4l2_object_unlock(self->v4l2capture);
+ gst_pad_stop_task(decoder->srcpad);
+ }
+
+ return GST_ELEMENT_CLASS(parent_class)->change_state(element, transition);
+}
+
+static void
+gst_aml_v4l2_video_dec_dispose(GObject *object)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(object);
+
+ gst_caps_replace(&self->probed_sinkcaps, NULL);
+ gst_caps_replace(&self->probed_srccaps, NULL);
+
+ G_OBJECT_CLASS(parent_class)->dispose(object);
+}
+
+static void
+gst_aml_v4l2_video_dec_finalize(GObject *object)
+{
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(object);
+
+ gst_aml_v4l2_object_destroy(self->v4l2capture);
+ gst_aml_v4l2_object_destroy(self->v4l2output);
+
+ G_OBJECT_CLASS(parent_class)->finalize(object);
+}
+
+static void
+gst_aml_v4l2_video_dec_init(GstAmlV4l2VideoDec *self)
+{
+ /* V4L2 object are created in subinstance_init */
+ self->is_secure_path = FALSE;
+}
+
+static void
+gst_aml_v4l2_video_dec_subinstance_init(GTypeInstance *instance, gpointer g_class)
+{
+ GstAmlV4l2VideoDecClass *klass = GST_AML_V4L2_VIDEO_DEC_CLASS(g_class);
+ GstAmlV4l2VideoDec *self = GST_AML_V4L2_VIDEO_DEC(instance);
+ GstVideoDecoder *decoder = GST_VIDEO_DECODER(instance);
+
+ gst_video_decoder_set_packetized(decoder, TRUE);
+
+ self->v4l2output = gst_aml_v4l2_object_new(GST_ELEMENT(self),
+ GST_OBJECT(GST_VIDEO_DECODER_SINK_PAD(self)),
+ V4L2_BUF_TYPE_VIDEO_OUTPUT, klass->default_device,
+ gst_aml_v4l2_get_output, gst_aml_v4l2_set_output, NULL);
+ self->v4l2output->no_initial_format = TRUE;
+ self->v4l2output->keep_aspect = FALSE;
+
+ self->v4l2capture = gst_aml_v4l2_object_new(GST_ELEMENT(self),
+ GST_OBJECT(GST_VIDEO_DECODER_SRC_PAD(self)),
+ V4L2_BUF_TYPE_VIDEO_CAPTURE, klass->default_device,
+ gst_aml_v4l2_get_input, gst_aml_v4l2_set_input, NULL);
+ self->v4l2capture->need_wait_event = TRUE;
+}
+
+static void
+gst_aml_v4l2_video_dec_class_init(GstAmlV4l2VideoDecClass *klass)
+{
+ GstElementClass *element_class;
+ GObjectClass *gobject_class;
+ GstVideoDecoderClass *video_decoder_class;
+
+ parent_class = g_type_class_peek_parent(klass);
+
+ element_class = (GstElementClass *)klass;
+ gobject_class = (GObjectClass *)klass;
+ video_decoder_class = (GstVideoDecoderClass *)klass;
+
+ GST_DEBUG_CATEGORY_INIT(gst_aml_v4l2_video_dec_debug, "amlv4l2videodec", 0,
+ "AML V4L2 Video Decoder");
+
+ gobject_class->dispose = GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_dispose);
+ gobject_class->finalize = GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_finalize);
+ gobject_class->set_property =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_set_property);
+ gobject_class->get_property =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_get_property);
+
+ video_decoder_class->open = GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_open);
+ video_decoder_class->close = GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_close);
+ video_decoder_class->start = GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_start);
+ video_decoder_class->stop = GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_stop);
+ video_decoder_class->finish = GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_finish);
+ video_decoder_class->flush = GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_flush);
+ video_decoder_class->drain = GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_drain);
+ video_decoder_class->set_format =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_set_format);
+ video_decoder_class->negotiate =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_negotiate);
+ video_decoder_class->decide_allocation =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_decide_allocation);
+ /* FIXME propose_allocation or not ? */
+ video_decoder_class->handle_frame =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_handle_frame);
+ video_decoder_class->getcaps =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_sink_getcaps);
+ video_decoder_class->src_query =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_src_query);
+ video_decoder_class->sink_event =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_sink_event);
+
+ element_class->change_state =
+ GST_DEBUG_FUNCPTR(gst_aml_v4l2_video_dec_change_state);
+
+ gst_aml_v4l2_object_install_m2m_properties_helper(gobject_class);
+}
+
+static void
+gst_aml_v4l2_video_dec_subclass_init(gpointer g_class, gpointer data)
+{
+ GstAmlV4l2VideoDecClass *klass = GST_AML_V4L2_VIDEO_DEC_CLASS(g_class);
+ GstElementClass *element_class = GST_ELEMENT_CLASS(g_class);
+ GstAmlV4l2VideoDecCData *cdata = data;
+
+ klass->default_device = cdata->device;
+
+ /* Note: gst_pad_template_new() take the floating ref from the caps */
+ gst_element_class_add_pad_template(element_class,
+ gst_pad_template_new("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
+ cdata->sink_caps));
+ gst_element_class_add_pad_template(element_class,
+ gst_pad_template_new("src", GST_PAD_SRC, GST_PAD_ALWAYS,
+ cdata->src_caps));
+
+ gst_element_class_set_metadata(element_class, cdata->longname,
+ "Codec/Decoder/Video/Hardware", cdata->description,
+ "Xuesong Jiang <Xuesong.Jiang@amlogic.com>");
+
+ gst_caps_unref(cdata->sink_caps);
+ gst_caps_unref(cdata->src_caps);
+ g_free(cdata);
+}
+
+/* Probing functions */
+gboolean
+gst_aml_v4l2_is_video_dec(GstCaps *sink_caps, GstCaps *src_caps)
+{
+ gboolean ret = FALSE;
+
+ if (gst_caps_is_subset(sink_caps, gst_aml_v4l2_object_get_codec_caps()) && gst_caps_is_subset(src_caps, gst_aml_v4l2_object_get_raw_caps()))
+ ret = TRUE;
+
+ return ret;
+}
+
+static gchar *
+gst_aml_v4l2_video_dec_set_metadata(GstStructure *s, GstAmlV4l2VideoDecCData *cdata,
+ const gchar *basename)
+{
+ gchar *codec_name = NULL;
+ gchar *type_name = NULL;
+ gboolean got_value = FALSE;
+
+#define SET_META(codec) \
+ G_STMT_START \
+ { \
+ cdata->longname = "AML V4L2 " codec " Decoder"; \
+ cdata->description = "Decodes " codec " streams via V4L2 API"; \
+ codec_name = g_ascii_strdown(codec, -1); \
+ } \
+ G_STMT_END
+
+ if (gst_structure_has_name(s, "image/jpeg"))
+ {
+ SET_META("JPEG");
+ }
+ else if (gst_structure_has_name(s, "video/mpeg"))
+ {
+ gint mpegversion = 0;
+ gint *list = NULL;
+ got_value = gst_structure_get_int(s, "mpegversion", &mpegversion);
+ if (FALSE == got_value)
+ {
+ got_value = gst_structure_get_list(s, "mpegversion", &list);
+ if (TRUE == got_value && (1 == *list || 2 == *list))
+ {
+ SET_META("MPEG2");
+ }
+ else
+ {
+ SET_META("MPEG4");
+ }
+ }
+ else
+ {
+ SET_META("MPEG4");
+ }
+ }
+ else if (gst_structure_has_name(s, "video/x-h263"))
+ {
+ SET_META("H263");
+ }
+ else if (gst_structure_has_name(s, "video/x-fwht"))
+ {
+ SET_META("FWHT");
+ }
+ else if (gst_structure_has_name(s, "video/x-h264"))
+ {
+ SET_META("H264");
+ }
+ else if (gst_structure_has_name(s, "video/x-h265"))
+ {
+ SET_META("H265");
+ }
+ else if (gst_structure_has_name(s, "video/x-wmv"))
+ {
+ SET_META("VC1");
+ }
+ else if (gst_structure_has_name(s, "video/x-vp8"))
+ {
+ SET_META("VP8");
+ }
+ else if (gst_structure_has_name(s, "video/x-vp9"))
+ {
+ SET_META("VP9");
+ }
+ else if (gst_structure_has_name(s, "video/x-av1"))
+ {
+ SET_META("AV1");
+ }
+ else if (gst_structure_has_name(s, "video/x-bayer"))
+ {
+ SET_META("BAYER");
+ }
+ else if (gst_structure_has_name(s, "video/x-sonix"))
+ {
+ SET_META("SONIX");
+ }
+ else if (gst_structure_has_name(s, "video/x-pwc1"))
+ {
+ SET_META("PWC1");
+ }
+ else if (gst_structure_has_name(s, "video/x-pwc2"))
+ {
+ SET_META("PWC2");
+ }
+ else
+ {
+ /* This code should be kept on sync with the exposed CODEC type of format
+ * from gstamlv4l2object.c. This warning will only occure in case we forget
+ * to also add a format here. */
+ gchar *s_str = gst_structure_to_string(s);
+ g_warning("Missing fixed name mapping for caps '%s', this is a GStreamer "
+ "bug, please report at https://bugs.gnome.org",
+ s_str);
+ g_free(s_str);
+ }
+
+ if (codec_name)
+ {
+ type_name = g_strdup_printf("amlv4l2%sdec", codec_name);
+ if (g_type_from_name(type_name) != 0)
+ {
+ g_free(type_name);
+ type_name = g_strdup_printf("amlv4l2%s%sdec", basename, codec_name);
+ }
+
+ g_free(codec_name);
+ }
+
+ return type_name;
+#undef SET_META
+}
+
+void gst_aml_v4l2_video_dec_register(GstPlugin *plugin, const gchar *basename,
+ const gchar *device_path, GstCaps *sink_caps, GstCaps *src_caps)
+{
+ gint i;
+
+ for (i = 0; i < gst_caps_get_size(sink_caps); i++)
+ {
+ GstAmlV4l2VideoDecCData *cdata;
+ GstStructure *s;
+ GTypeQuery type_query;
+ GTypeInfo type_info = {
+ 0,
+ };
+ GType type, subtype;
+ gchar *type_name;
+
+ s = gst_caps_get_structure(sink_caps, i);
+
+ cdata = g_new0(GstAmlV4l2VideoDecCData, 1);
+ cdata->device = g_strdup(device_path);
+ cdata->sink_caps = gst_caps_new_empty();
+ gst_caps_append_structure(cdata->sink_caps, gst_structure_copy(s));
+ gst_caps_append_structure(cdata->sink_caps, gst_structure_copy(s));
+ gst_caps_set_features(cdata->sink_caps, 0, gst_caps_features_from_string(GST_CAPS_FEATURE_MEMORY_DMABUF));
+ cdata->src_caps = gst_caps_copy(src_caps);
+ gst_caps_set_features_simple(cdata->src_caps, gst_caps_features_from_string(GST_CAPS_FEATURE_MEMORY_DMABUF));
+ gst_caps_append(cdata->src_caps, gst_caps_copy(src_caps));
+ type_name = gst_aml_v4l2_video_dec_set_metadata(s, cdata, basename);
+
+ /* Skip over if we hit an unmapped type */
+ if (!type_name)
+ {
+ g_free(cdata);
+ continue;
+ }
+
+ type = gst_aml_v4l2_video_dec_get_type();
+ g_type_query(type, &type_query);
+ memset(&type_info, 0, sizeof(type_info));
+ type_info.class_size = type_query.class_size;
+ type_info.instance_size = type_query.instance_size;
+ type_info.class_init = gst_aml_v4l2_video_dec_subclass_init;
+ type_info.class_data = cdata;
+ type_info.instance_init = gst_aml_v4l2_video_dec_subinstance_init;
+
+ subtype = g_type_register_static(type, type_name, &type_info, 0);
+ if (!gst_element_register(plugin, type_name, GST_RANK_PRIMARY + 1,
+ subtype))
+ GST_WARNING("Failed to register plugin '%s'", type_name);
+
+ g_free(type_name);
+ }
+}