| /* |
| * Copyright (c) 2019 Amlogic, Inc. All rights reserved. |
| * |
| * This source code is subject to the terms and conditions defined in the |
| * file 'LICENSE' which is part of this source code package. |
| * |
| * Description: |
| */ |
| #include <errno.h> |
| #include <pthread.h> |
| #include <stdbool.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <sys/time.h> |
| #include <poll.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/prctl.h> |
| #include <sys/ioctl.h> |
| #include <time.h> |
| #include <unistd.h> |
| //#include <linux/amlogic/msync.h> |
| #include "aml_avsync.h" |
| #include "queue.h" |
| #include "pattern.h" |
| #include "aml_avsync_log.h" |
| #include "msync_util.h" |
| #include "msync.h" |
| #include <pthread.h> |
| #include "pcr_monitor.h" |
| enum sync_state { |
| AV_SYNC_STAT_INIT = 0, |
| AV_SYNC_STAT_RUNNING = 1, |
| AV_SYNC_STAT_SYNC_SETUP = 2, |
| AV_SYNC_STAT_SYNC_LOST = 3, |
| }; |
| |
| enum audio_switch_state_ { |
| AUDIO_SWITCH_STAT_INIT = 0, |
| AUDIO_SWITCH_STAT_RESET = 1, |
| AUDIO_SWITCH_STAT_START = 2, |
| AUDIO_SWITCH_STAT_FINISH = 3, |
| }; |
| |
| #define SESSION_DEV "avsync_s" |
| |
| struct av_sync_session { |
| /* session id attached */ |
| int session_id; |
| int fd; |
| bool attached; |
| enum sync_mode mode; |
| /* for audio trickplay */ |
| enum sync_mode backup_mode; |
| enum sync_type type; |
| uint32_t start_policy; |
| |
| /* playback time, will stop increasing during pause */ |
| pts90K vpts; |
| pts90K apts; |
| |
| /* phase adjustment of stream time for rate control (Video ONLY) */ |
| pts90K phase; |
| bool phase_set; |
| |
| /* pts of last rendered frame */ |
| pts90K last_wall; |
| pts90K last_pts; |
| struct vframe *last_frame; |
| |
| bool first_frame_toggled; |
| bool paused; |
| enum sync_state state; |
| void *pattern_detector; |
| void *frame_q; |
| |
| /* start control */ |
| int start_thres; |
| audio_start_cb audio_start; |
| void *audio_start_priv; |
| |
| /* render property */ |
| int delay; |
| pts90K vsync_interval; |
| |
| /* state lock */ |
| pthread_mutex_t lock; |
| /* pattern */ |
| int last_holding_peroid; |
| bool session_started; |
| |
| float speed; |
| |
| /* pause pts */ |
| pts90K pause_pts; |
| pause_pts_done pause_pts_cb; |
| void *pause_cb_priv; |
| |
| /* log control */ |
| uint32_t last_log_syst; |
| uint32_t sync_lost_cnt; |
| struct timeval sync_lost_print_time; |
| |
| pthread_t poll_thread; |
| /* pcr master, IPTV only */ |
| bool quit_poll; |
| enum sync_mode active_mode; |
| uint32_t disc_thres_min; |
| uint32_t disc_thres_max; |
| |
| /* error detection */ |
| uint32_t last_poptime; |
| uint32_t outlier_cnt; |
| pts90K last_disc_pts; |
| |
| // indicate set audio switch |
| bool in_audio_switch; |
| enum audio_switch_state_ audio_switch_state; |
| |
| //pcr monitor handle |
| void *pcr_monitor; |
| int ppm; |
| |
| //video FPS detection |
| pts90K last_fpts; |
| int fps_interval; |
| int fps_interval_acc; |
| int fps_cnt; |
| |
| //video freerun with rate control |
| uint32_t last_r_syst; |
| |
| //Audio dropping detection |
| uint32_t audio_drop_cnt; |
| struct timeval audio_drop_start; |
| }; |
| |
| #define MAX_FRAME_NUM 32 |
| #define DEFAULT_START_THRESHOLD 2 |
| #define TIME_UNIT90K (90000) |
| #define AV_DISC_THRES_MIN (TIME_UNIT90K / 3) |
| #define AV_DISC_THRES_MAX (TIME_UNIT90K * 10) |
| #define A_ADJ_THREDHOLD_HB (900 * 6) //60ms |
| #define A_ADJ_THREDHOLD_LB (900 * 2) //20ms |
| #define AV_PATTERN_RESET_THRES (TIME_UNIT90K / 10) |
| #define SYNC_LOST_PRINT_THRESHOLD 10000000 //10 seconds In micro seconds |
| #define LIVE_MODE(mode) ((mode) == AV_SYNC_MODE_PCR_MASTER || (mode) == AV_SYNC_MODE_IPTV) |
| |
| #define STREAM_DISC_THRES (TIME_UNIT90K / 10) |
| #define OUTLIER_MAX_CNT 8 |
| #define VALID_TS(x) ((x) != -1) |
| |
| static uint64_t time_diff (struct timeval *b, struct timeval *a); |
| static bool frame_expire(struct av_sync_session* avsync, |
| uint32_t systime, |
| uint32_t interval, |
| struct vframe * frame, |
| struct vframe * next_frame, |
| int toggle_cnt); |
| static bool pattern_detect(struct av_sync_session* avsync, |
| int cur_period, |
| int last_period); |
| static void * poll_thread(void * arg); |
| static void trigger_audio_start_cb(struct av_sync_session *avsync, |
| avs_ascb_reason reason); |
| |
| int av_sync_open_session(int *session_id) |
| { |
| int fd = msync_create_session(); |
| int id, rc; |
| |
| if (fd < 0) { |
| log_error("fail"); |
| return -1; |
| } |
| rc = ioctl(fd, AMSYNC_IOC_ALLOC_SESSION, &id); |
| if (rc) { |
| log_error("new session errno:%d", errno); |
| return rc; |
| } |
| *session_id = id; |
| return fd; |
| } |
| |
| void av_sync_close_session(int session) |
| { |
| msync_destory_session(session); |
| } |
| |
| static void* create_internal(int session_id, |
| enum sync_mode mode, |
| enum sync_type type, |
| int start_thres, |
| bool attach) |
| { |
| struct av_sync_session *avsync = NULL; |
| char dev_name[20]; |
| |
| avsync = (struct av_sync_session *)calloc(1, sizeof(*avsync)); |
| if (!avsync) { |
| log_error("OOM"); |
| return NULL; |
| } |
| |
| if (type == AV_SYNC_TYPE_VIDEO) { |
| avsync->pattern_detector = create_pattern_detector(); |
| if (!avsync->pattern_detector) { |
| log_error("pd create fail"); |
| goto err; |
| } |
| |
| if (!start_thres) |
| avsync->start_thres = DEFAULT_START_THRESHOLD; |
| else { |
| if (start_thres > 5) { |
| log_error("start_thres too big: %d", start_thres); |
| goto err2; |
| } |
| avsync->start_thres = start_thres; |
| } |
| avsync->phase_set = false; |
| avsync->first_frame_toggled = false; |
| } |
| |
| avsync->type = type; |
| avsync->state = AV_SYNC_STAT_INIT; |
| avsync->paused = false; |
| avsync->session_id = session_id; |
| avsync->backup_mode = mode; |
| avsync->last_frame = NULL; |
| avsync->session_started = false; |
| avsync->speed = 1.0f; |
| avsync->pause_pts = AV_SYNC_INVALID_PAUSE_PTS; |
| avsync->vsync_interval = -1; |
| avsync->last_disc_pts = -1; |
| avsync->last_log_syst = -1; |
| avsync->last_pts = -1; |
| avsync->last_wall = -1; |
| avsync->fps_interval = -1; |
| avsync->last_r_syst = -1; |
| if (msync_session_get_disc_thres(session_id, |
| &avsync->disc_thres_min, &avsync->disc_thres_max)) { |
| log_error("fail to get disc thres", dev_name, errno); |
| avsync->disc_thres_min = AV_DISC_THRES_MIN; |
| avsync->disc_thres_max = AV_DISC_THRES_MAX; |
| } |
| |
| pthread_mutex_init(&avsync->lock, NULL); |
| log_info("[%d] mode %d type %d start_thres %d disc_thres %u/%u", |
| session_id, mode, type, start_thres, |
| avsync->disc_thres_min, avsync->disc_thres_max); |
| |
| snprintf(dev_name, sizeof(dev_name), "/dev/%s%d", SESSION_DEV, session_id); |
| avsync->fd = open(dev_name, O_RDONLY | O_CLOEXEC); |
| if (avsync->fd < 0) { |
| log_error("open %s errno %d", dev_name, errno); |
| goto err2; |
| } |
| |
| if (avsync->type == AV_SYNC_TYPE_PCR) { |
| if (pcr_monitor_init(&avsync->pcr_monitor)) { |
| log_error("pcr monitor init"); |
| goto err2; |
| } |
| } |
| |
| if (!attach) { |
| msync_session_set_mode(avsync->fd, mode); |
| avsync->mode = mode; |
| } else { |
| avsync->attached = true; |
| if (msync_session_get_mode(avsync->fd, &avsync->mode)) { |
| log_error("get mode"); |
| goto err3; |
| } |
| avsync->backup_mode = avsync->mode; |
| if (msync_session_get_start_policy(avsync->fd, &avsync->start_policy)) { |
| log_error("get policy"); |
| goto err3; |
| } |
| if (msync_session_get_stat(avsync->fd, &avsync->active_mode, |
| NULL, NULL, NULL, &avsync->in_audio_switch)) { |
| log_error("get state"); |
| goto err3; |
| } |
| if (avsync->in_audio_switch) { |
| log_info("audio_switch_state reseted the audio"); |
| avsync->audio_switch_state = AUDIO_SWITCH_STAT_RESET; |
| } |
| |
| log_info("[%d]retrieve sync mode %d policy %d", |
| session_id, avsync->mode, avsync->start_policy); |
| } |
| |
| return avsync; |
| err3: |
| if (avsync->pcr_monitor) |
| pcr_monitor_destroy(avsync->pcr_monitor); |
| err2: |
| destroy_pattern_detector(avsync->pattern_detector); |
| err: |
| free(avsync); |
| return NULL; |
| } |
| |
| void* av_sync_create(int session_id, |
| enum sync_mode mode, |
| enum sync_type type, |
| int start_thres) |
| { |
| return create_internal(session_id, mode, |
| type, start_thres, false); |
| } |
| |
| void* av_sync_attach(int session_id, enum sync_type type) |
| { |
| return create_internal(session_id, AV_SYNC_MODE_MAX, |
| type, 0, true); |
| } |
| |
| int av_sync_video_config(void *sync, struct video_config* config) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync || !config) |
| return -1; |
| |
| if (config->delay != 1 && config->delay != 2) { |
| log_error("invalid delay: %d\n", config->delay); |
| return -1; |
| } |
| |
| avsync->delay = config->delay; |
| |
| log_info("[%d] delay: %d", |
| avsync->session_id, config->delay); |
| return 0; |
| } |
| |
| static int internal_stop(struct av_sync_session *avsync) |
| { |
| int ret = 0; |
| struct vframe *frame; |
| |
| pthread_mutex_lock(&avsync->lock); |
| while (!dqueue_item(avsync->frame_q, (void **)&frame)) { |
| frame->free(frame); |
| } |
| avsync->state = AV_SYNC_STAT_INIT; |
| pthread_mutex_unlock(&avsync->lock); |
| return ret; |
| } |
| |
| /* destroy and detach from kernel session */ |
| void av_sync_destroy(void *sync) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync) |
| return; |
| |
| log_info("[%d]begin", avsync->session_id); |
| if (avsync->state != AV_SYNC_STAT_INIT) { |
| if (avsync->type == AV_SYNC_TYPE_VIDEO) |
| internal_stop(avsync); |
| |
| avsync->quit_poll = true; |
| if (avsync->poll_thread) { |
| pthread_join(avsync->poll_thread, NULL); |
| avsync->poll_thread = 0; |
| } |
| trigger_audio_start_cb(avsync, AV_SYNC_ASCB_STOP); |
| } |
| |
| if (avsync->session_started) { |
| if (avsync->type == AV_SYNC_TYPE_VIDEO) |
| msync_session_set_video_stop(avsync->fd); |
| else |
| msync_session_set_audio_stop(avsync->fd); |
| } |
| |
| if(avsync->pcr_monitor) |
| pcr_monitor_destroy(avsync->pcr_monitor); |
| |
| close(avsync->fd); |
| pthread_mutex_destroy(&avsync->lock); |
| if (avsync->type == AV_SYNC_TYPE_VIDEO) { |
| destroy_q(avsync->frame_q); |
| destroy_pattern_detector(avsync->pattern_detector); |
| } |
| log_info("[%d]done", avsync->session_id); |
| free(avsync); |
| } |
| |
| int avs_sync_set_start_policy(void *sync, enum sync_start_policy policy) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync || !avsync->fd) |
| return -1; |
| |
| log_info("[%d]policy %u --> %u", avsync->start_policy, policy); |
| avsync->start_policy = policy; |
| /* v_peek will be handled by libamlavsync */ |
| if (policy != AV_SYNC_START_NONE && |
| policy != AV_SYNC_START_V_PEEK) |
| return msync_session_set_start_policy(avsync->fd, policy); |
| |
| return 0; |
| } |
| |
| int av_sync_pause(void *sync, bool pause) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| bool v_active, a_active, v_timeout; |
| int rc; |
| |
| if (!avsync) |
| return -1; |
| |
| if (avsync->mode == AV_SYNC_MODE_PCR_MASTER) |
| return -1; |
| |
| rc = msync_session_get_stat(avsync->fd, &avsync->active_mode, |
| &v_active, &a_active, &v_timeout, |
| &avsync->in_audio_switch); |
| |
| /* ignore only when video try to pause when audio is acive, on which |
| the control of the STC will be relays. |
| When resume,it can do always as it is possible that video just |
| paused earlier without audio yet,then audio added later before resume. |
| We shall not igore that otherwise it could cause video freeze. */ |
| if (avsync->mode == AV_SYNC_MODE_AMASTER && |
| avsync->type == AV_SYNC_TYPE_VIDEO && |
| a_active && |
| !avsync->in_audio_switch) { |
| if (!pause) { |
| log_info("[%d] clear video pause when audio active", |
| avsync->session_id); |
| avsync->paused = pause; |
| } else { |
| log_info("[%d] ignore the pause from video when audio active", |
| avsync->session_id); |
| } |
| return 0; |
| } |
| |
| if (avsync->in_audio_switch && avsync->type == AV_SYNC_TYPE_AUDIO) { |
| log_info("[%d] ignore the pause from audio", avsync->session_id); |
| avsync->audio_switch_state = AUDIO_SWITCH_STAT_RESET; |
| return 0; |
| } |
| |
| rc = msync_session_set_pause(avsync->fd, pause); |
| avsync->paused = pause; |
| log_info("[%d]paused:%d type:%d rc %d", |
| avsync->session_id, pause, avsync->type, rc); |
| |
| return rc; |
| } |
| |
| int av_sync_push_frame(void *sync , struct vframe *frame) |
| { |
| int ret; |
| struct vframe *prev; |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync) |
| return -1; |
| |
| if (!avsync->frame_q) { |
| /* policy should be final now */ |
| if (msync_session_get_start_policy(avsync->fd, &avsync->start_policy)) { |
| log_error("[%d]get policy", avsync->session_id); |
| return -1; |
| } |
| |
| avsync->frame_q = create_q(MAX_FRAME_NUM); |
| if (!avsync->frame_q) { |
| log_error("[%d]create queue fail", avsync->session_id); |
| return -1; |
| } |
| |
| if (avsync->mode == AV_SYNC_MODE_PCR_MASTER || |
| avsync->mode == AV_SYNC_MODE_IPTV) { |
| int ret; |
| |
| ret = pthread_create(&avsync->poll_thread, NULL, poll_thread, avsync); |
| if (ret) { |
| log_error("[%d]create poll thread errno %d", avsync->session_id, errno); |
| destroy_q(avsync->frame_q); |
| return -1; |
| } |
| } |
| } |
| |
| if (!peek_item(avsync->frame_q, (void **)&prev, 0)) { |
| if (prev->pts == frame->pts && avsync->mode == AV_SYNC_MODE_AMASTER) { |
| dqueue_item(avsync->frame_q, (void **)&prev); |
| prev->free(prev); |
| log_info ("[%d]drop frame with same pts %u", avsync->session_id, frame->pts); |
| } else if (LIVE_MODE(avsync->mode) && avsync->fps_cnt < 100) { |
| int32_t interval = frame->pts - prev->pts; |
| |
| if (interval > 0 && interval <= 4500) { |
| if (avsync->fps_interval_acc == -1) { |
| avsync->fps_interval_acc = interval; |
| avsync->fps_cnt = 1; |
| } else { |
| avsync->fps_interval_acc += interval; |
| avsync->fps_cnt++; |
| avsync->fps_interval = avsync->fps_interval_acc / avsync->fps_cnt; |
| if (avsync->fps_cnt == 100) |
| log_info("[%d] fps_interval = %d", avsync->session_id, avsync->fps_interval); |
| } |
| } |
| } |
| } |
| |
| if (frame->duration == -1) |
| frame->duration = 0; |
| frame->hold_period = 0; |
| ret = queue_item(avsync->frame_q, frame); |
| if (avsync->state == AV_SYNC_STAT_INIT && |
| queue_size(avsync->frame_q) >= avsync->start_thres) { |
| avsync->state = AV_SYNC_STAT_RUNNING; |
| log_info("[%d]state: init --> running", avsync->session_id); |
| } |
| |
| if (ret) |
| log_error("%s queue fail:%d", ret); |
| log_debug("[%d]push %u", avsync->session_id, frame->pts); |
| return ret; |
| |
| } |
| |
| struct vframe *av_sync_pop_frame(void *sync) |
| { |
| struct vframe *frame = NULL, *enter_last_frame = NULL; |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| int toggle_cnt = 0; |
| uint32_t systime; |
| bool pause_pts_reached = false; |
| uint32_t interval; |
| |
| pthread_mutex_lock(&avsync->lock); |
| if (avsync->state == AV_SYNC_STAT_INIT) { |
| log_info("[%d]in state INIT", avsync->session_id); |
| goto exit; |
| } |
| |
| if (!avsync->session_started) { |
| uint32_t pts; |
| |
| if (peek_item(avsync->frame_q, (void **)&frame, 0) || !frame) { |
| log_info("[%d]empty q", avsync->session_id); |
| goto exit; |
| } |
| msync_session_get_wall(avsync->fd, &systime, &interval); |
| pts = frame->pts - avsync->delay * interval; |
| msync_session_set_video_start(avsync->fd, pts); |
| avsync->session_started = true; |
| log_info("[%d]video start %u", avsync->session_id, pts); |
| } |
| |
| if (avsync->start_policy == AV_SYNC_START_ALIGN && |
| !avsync->first_frame_toggled && |
| !msync_clock_started(avsync->fd)) { |
| pthread_mutex_unlock(&avsync->lock); |
| log_trace("[%d]clock not started", avsync->session_id); |
| return NULL; |
| } |
| |
| enter_last_frame = avsync->last_frame; |
| msync_session_get_wall(avsync->fd, &systime, &interval); |
| |
| /* handle refresh rate change */ |
| if (avsync->vsync_interval == AV_SYNC_INVALID_PAUSE_PTS || |
| avsync->vsync_interval != interval) { |
| log_info("[%d]vsync interval update %d --> %u", |
| avsync->session_id, avsync->vsync_interval, interval); |
| if (avsync->fps_interval == -1) |
| avsync->fps_interval = interval; |
| avsync->vsync_interval = interval; |
| avsync->phase_set = false; |
| reset_pattern(avsync->pattern_detector); |
| } |
| while (!peek_item(avsync->frame_q, (void **)&frame, 0)) { |
| struct vframe *next_frame = NULL; |
| |
| peek_item(avsync->frame_q, (void **)&next_frame, 1); |
| if (next_frame) |
| log_debug("[%d]cur_f %u next_f %u size %d", |
| avsync->session_id, frame->pts, next_frame->pts, queue_size(avsync->frame_q)); |
| if (frame_expire(avsync, systime, interval, |
| frame, next_frame, toggle_cnt)) { |
| log_debug("[%d]cur_f %u expire", avsync->session_id, frame->pts); |
| toggle_cnt++; |
| |
| if (pattern_detect(avsync, |
| (avsync->last_frame?avsync->last_frame->hold_period:0), |
| avsync->last_holding_peroid)) |
| log_info("[%d] %u break the pattern", avsync->session_id, avsync->last_frame->pts); |
| |
| if (avsync->last_frame) |
| avsync->last_holding_peroid = avsync->last_frame->hold_period; |
| |
| dqueue_item(avsync->frame_q, (void **)&frame); |
| if (avsync->last_frame) { |
| /* free frame that are not for display */ |
| if (toggle_cnt > 1) { |
| log_debug("[%d]free %u cur %u system/d %u/%u", avsync->session_id, |
| avsync->last_frame->pts, frame->pts, systime, systime - avsync->last_poptime); |
| avsync->last_frame->free(avsync->last_frame); |
| } |
| } else { |
| avsync->first_frame_toggled = true; |
| log_info("[%d]first frame %u", avsync->session_id, frame->pts); |
| } |
| avsync->last_frame = frame; |
| avsync->last_pts = frame->pts; |
| } else |
| break; |
| } |
| |
| /* pause pts */ |
| if (avsync->pause_pts != AV_SYNC_INVALID_PAUSE_PTS && avsync->last_frame) { |
| if (avsync->pause_pts == AV_SYNC_STEP_PAUSE_PTS) |
| pause_pts_reached = true; |
| else |
| pause_pts_reached = (int)(avsync->last_frame->pts - avsync->pause_pts) >= 0; |
| } else if (avsync->pause_pts != AV_SYNC_INVALID_PAUSE_PTS) { |
| if (!peek_item(avsync->frame_q, (void **)&frame, 0)) |
| pause_pts_reached = (int)(frame->pts - avsync->pause_pts) >= 0; |
| } |
| |
| if (pause_pts_reached) { |
| if (avsync->pause_pts_cb) |
| avsync->pause_pts_cb(avsync->pause_pts, |
| avsync->pause_cb_priv); |
| |
| /* stay in paused until av_sync_pause(false) */ |
| avsync->paused = true; |
| avsync->pause_pts = AV_SYNC_INVALID_PAUSE_PTS; |
| log_info ("[%d]reach pause pts: %u", |
| avsync->session_id, avsync->last_frame->pts); |
| } |
| |
| exit: |
| pthread_mutex_unlock(&avsync->lock); |
| if (avsync->last_frame) { |
| if (enter_last_frame != avsync->last_frame) |
| log_debug("[%d]pop %u", avsync->session_id, avsync->last_frame->pts); |
| log_trace("[%d]pop %u", avsync->session_id, avsync->last_frame->pts); |
| /* don't update vpts for out_lier */ |
| if (avsync->last_frame->duration != -1) |
| msync_session_update_vpts(avsync->fd, systime, |
| avsync->last_frame->pts, interval * avsync->delay); |
| } else |
| if (enter_last_frame != avsync->last_frame) |
| log_debug("[%d]pop (nil)", avsync->session_id); |
| |
| avsync->last_poptime = systime; |
| if (avsync->last_frame) |
| avsync->last_frame->hold_period++; |
| return avsync->last_frame; |
| } |
| |
| static inline uint32_t abs_diff(uint32_t a, uint32_t b) |
| { |
| return (int)(a - b) > 0 ? a - b : b - a; |
| } |
| |
| static uint64_t time_diff (struct timeval *b, struct timeval *a) |
| { |
| return (b->tv_sec - a->tv_sec)*1000000 + (b->tv_usec - a->tv_usec); |
| } |
| |
| static bool frame_expire(struct av_sync_session* avsync, |
| uint32_t systime, |
| uint32_t interval, |
| struct vframe * frame, |
| struct vframe * next_frame, |
| int toggle_cnt) |
| { |
| uint32_t fpts = frame->pts; |
| bool expire = false; |
| uint32_t pts_correction = avsync->delay * interval; |
| |
| if (avsync->mode == AV_SYNC_MODE_FREE_RUN) |
| return true; |
| |
| if (avsync->paused && avsync->pause_pts == AV_SYNC_INVALID_PAUSE_PTS) |
| return false; |
| |
| if (avsync->pause_pts == AV_SYNC_STEP_PAUSE_PTS) |
| return true; |
| |
| if (!fpts) { |
| if (avsync->last_frame) { |
| /* try to accumulate duration as PTS */ |
| fpts = avsync->vpts + avsync->last_frame->duration; |
| } else { |
| fpts = avsync->vpts; |
| } |
| } |
| systime += pts_correction; |
| |
| /* phase adjustment */ |
| if (avsync->phase_set) |
| systime += avsync->phase; |
| |
| log_trace("[%d]systime:%u phase:%u correct:%u fpts:%u", |
| avsync->session_id, systime, |
| avsync->phase_set?avsync->phase:0, pts_correction, fpts); |
| if (abs_diff(systime, fpts) > avsync->disc_thres_min) { |
| /* ignore discontinity under pause */ |
| if (avsync->paused) |
| return false; |
| |
| if ((VALID_TS(avsync->last_log_syst) && avsync->last_log_syst != systime) || |
| (VALID_TS(avsync->last_pts) && avsync->last_pts != fpts)) { |
| struct timeval now; |
| |
| gettimeofday(&now, NULL); |
| avsync->last_log_syst = systime; |
| avsync->last_pts = fpts; |
| if (time_diff(&now, &avsync->sync_lost_print_time) >= |
| SYNC_LOST_PRINT_THRESHOLD) { |
| log_warn("[%d]sync lost systime:%u fpts:%u lost:%u", |
| avsync->session_id, systime, fpts, avsync->sync_lost_cnt); |
| avsync->sync_lost_cnt = 0; |
| gettimeofday(&avsync->sync_lost_print_time, NULL); |
| } else |
| avsync->sync_lost_cnt++; |
| } |
| |
| if (avsync->state == AV_SYNC_STAT_SYNC_SETUP && |
| LIVE_MODE(avsync->mode) && |
| VALID_TS(avsync->last_pts) && |
| abs_diff(avsync->last_pts, fpts) > STREAM_DISC_THRES) { |
| /* outlier by stream error */ |
| avsync->outlier_cnt++; |
| frame->duration = -1; |
| if (avsync->outlier_cnt < OUTLIER_MAX_CNT) { |
| log_info("render outlier %u", fpts); |
| return true; |
| } |
| } |
| |
| avsync->outlier_cnt = 0; |
| avsync->state = AV_SYNC_STAT_SYNC_LOST; |
| avsync->phase_set = false; |
| reset_pattern(avsync->pattern_detector); |
| |
| if (LIVE_MODE(avsync->mode) && avsync->last_disc_pts != fpts) { |
| log_info ("[%d]video disc %u --> %u", |
| avsync->session_id, systime, fpts); |
| msync_session_set_video_dis(avsync->fd, fpts); |
| avsync->last_disc_pts = fpts; |
| } |
| |
| if ((int)(systime - fpts) > 0) { |
| if ((int)(systime - fpts) < avsync->disc_thres_max) { |
| /* catch up PCR */ |
| return true; |
| } else { |
| /* render according to FPS */ |
| if (!VALID_TS(avsync->last_r_syst) || |
| (int)(systime - avsync->last_r_syst) >= avsync->fps_interval) { |
| avsync->last_r_syst = systime; |
| return true; |
| } |
| return false; |
| } |
| } else if (LIVE_MODE(avsync->mode)) { |
| /* hold if the gap is small */ |
| if ((int)(fpts - systime) < avsync->disc_thres_max) { |
| return false; |
| } else { |
| /* render according to FPS */ |
| if (!VALID_TS(avsync->last_r_syst) || |
| (int)(systime - avsync->last_r_syst) >= avsync->fps_interval) { |
| avsync->last_r_syst = systime; |
| return true; |
| } |
| return false; |
| } |
| } |
| } |
| |
| /* In some cases, keeping pattern will enlarge the gap */ |
| if (abs_diff(systime, fpts) > AV_PATTERN_RESET_THRES && |
| avsync->first_frame_toggled) { |
| reset_pattern(avsync->pattern_detector); |
| log_warn("sync pattern reset sys:%u fpts:%u", |
| systime, fpts); |
| } |
| |
| expire = (int)(systime - fpts) >= 0; |
| |
| /* scatter the frame in different vsync whenever possible */ |
| if (expire && next_frame && next_frame->pts && toggle_cnt) { |
| /* multi frame expired in current vsync but no frame in next vsync */ |
| if (systime + interval < next_frame->pts) { |
| expire = false; |
| log_debug("[%d]unset expire systime:%d inter:%d next_pts:%d toggle_cnt:%d", |
| avsync->session_id, systime, interval, next_frame->pts, toggle_cnt); |
| } |
| } else if (!expire && next_frame && next_frame->pts && !toggle_cnt |
| && avsync->first_frame_toggled) { |
| /* next vsync will have at least 2 frame expired */ |
| if (systime + interval >= next_frame->pts) { |
| expire = true; |
| log_debug("[%d]set expire systime:%d inter:%d next_pts:%d", |
| avsync->session_id, systime, interval, next_frame->pts); |
| } |
| } |
| |
| if (avsync->state == AV_SYNC_STAT_SYNC_SETUP) |
| correct_pattern(avsync->pattern_detector, frame, next_frame, |
| (avsync->last_frame?avsync->last_frame->hold_period:0), |
| avsync->last_holding_peroid, systime, |
| interval, &expire); |
| |
| if (expire) { |
| avsync->vpts = fpts; |
| /* phase adjustment */ |
| if (!avsync->phase_set) { |
| uint32_t phase_thres = interval / 4; |
| if ( systime > fpts && (systime - fpts) < phase_thres) { |
| /* too aligned to current VSYNC, separate them to 1/4 VSYNC */ |
| avsync->phase += phase_thres - (systime - fpts); |
| avsync->phase_set = true; |
| log_info("[%d]adjust phase to %d", avsync->session_id, avsync->phase); |
| } |
| if (!avsync->phase_set && systime > fpts && |
| systime < (fpts + interval) && |
| (systime - fpts) > interval - phase_thres) { |
| /* too aligned to previous VSYNC, separate them to 1/4 VSYNC */ |
| avsync->phase += phase_thres + fpts + interval - systime; |
| avsync->phase_set = true; |
| log_info("[%d]adjust phase to %d", avsync->session_id, avsync->phase); |
| } |
| } |
| |
| if (avsync->state != AV_SYNC_STAT_SYNC_SETUP) |
| log_info("[%d]sync setup", avsync->session_id); |
| avsync->state = AV_SYNC_STAT_SYNC_SETUP; |
| avsync->sync_lost_cnt = 0; |
| } |
| return expire; |
| } |
| |
| static bool pattern_detect(struct av_sync_session* avsync, int cur_period, int last_period) |
| { |
| bool ret = false; |
| log_trace("[%d]cur_period: %d last_period: %d", |
| avsync->session_id, cur_period, last_period); |
| if (detect_pattern(avsync->pattern_detector, AV_SYNC_FRAME_P32, cur_period, last_period)) |
| ret = true; |
| if (detect_pattern(avsync->pattern_detector, AV_SYNC_FRAME_P22, cur_period, last_period)) |
| ret = true; |
| if (detect_pattern(avsync->pattern_detector, AV_SYNC_FRAME_P41, cur_period, last_period)) |
| ret = true; |
| if (detect_pattern(avsync->pattern_detector, AV_SYNC_FRAME_P11, cur_period, last_period)) |
| ret = true; |
| |
| return ret; |
| } |
| |
| int av_sync_set_speed(void *sync, float speed) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (speed < 0.001f || speed > 100) { |
| log_error("[%d]wrong speed %f [0.0001, 100]", avsync->session_id, speed); |
| return -1; |
| } |
| |
| if (avsync->mode == AV_SYNC_MODE_PCR_MASTER || |
| avsync->mode == AV_SYNC_MODE_IPTV) { |
| log_info("[%d]ignore set speed in mode %d", avsync->session_id, avsync->mode); |
| return 0; |
| } |
| |
| avsync->speed = speed; |
| |
| if (avsync->type == AV_SYNC_TYPE_AUDIO) { |
| if (speed == 1.0) { |
| avsync->mode = avsync->backup_mode; |
| log_info("[%d]audio back to mode %d", avsync->session_id, avsync->mode); |
| } else { |
| avsync->backup_mode = avsync->mode; |
| avsync->mode = AV_SYNC_MODE_FREE_RUN; |
| log_info("[%d]audio to freerun mode", avsync->session_id); |
| } |
| } |
| #if 0 |
| if (avsync->mode != AV_SYNC_MODE_VMASTER) { |
| log_info("ignore set speed in mode %d", avsync->mode); |
| return 0; |
| } |
| #endif |
| |
| log_info("session[%d] set rate to %f", avsync->session_id, speed); |
| return msync_session_set_rate(avsync->fd, speed); |
| } |
| |
| int av_sync_change_mode(void *sync, enum sync_mode mode) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync) |
| return -1; |
| |
| if (msync_session_set_mode(avsync->fd, mode)) { |
| log_error("[%d]fail to set mode %d", avsync->session_id, mode); |
| return -1; |
| } |
| avsync->mode = mode; |
| log_info("[%d]update sync mode to %d", avsync->session_id, mode); |
| return 0; |
| } |
| |
| int av_sync_get_mode(void *sync, enum sync_mode *mode) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync || !mode) |
| return -1; |
| |
| *mode = avsync->mode; |
| return 0; |
| } |
| |
| int av_sync_set_pause_pts(void *sync, pts90K pts) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync) |
| return -1; |
| |
| avsync->pause_pts = pts; |
| log_info("[%d]set pause pts: %u", avsync->session_id, pts); |
| return 0; |
| } |
| |
| int av_sync_set_pause_pts_cb(void *sync, pause_pts_done cb, void *priv) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync) |
| return -1; |
| |
| avsync->pause_pts_cb = cb; |
| avsync->pause_cb_priv = priv; |
| return 0; |
| } |
| |
| static void trigger_audio_start_cb(struct av_sync_session *avsync, |
| avs_ascb_reason reason) |
| { |
| if (avsync) { |
| pthread_mutex_lock(&avsync->lock); |
| if (avsync->audio_start) { |
| avsync->audio_start(avsync->audio_start_priv, reason); |
| avsync->session_started = true; |
| avsync->audio_start = NULL; |
| avsync->state = AV_SYNC_STAT_SYNC_SETUP; |
| } |
| pthread_mutex_unlock(&avsync->lock); |
| } |
| } |
| |
| avs_start_ret av_sync_audio_start( |
| void *sync, |
| pts90K pts, |
| pts90K delay, |
| audio_start_cb cb, |
| void *priv) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| uint32_t start_mode; |
| avs_start_ret ret = AV_SYNC_ASTART_ERR; |
| bool create_poll_t = false; |
| |
| if (!avsync) |
| return ret; |
| |
| if (msync_session_set_audio_start(avsync->fd, pts, delay, &start_mode)) |
| log_error("[%d]fail to set audio start", avsync->session_id); |
| |
| if (avsync->in_audio_switch |
| && avsync->audio_switch_state == AUDIO_SWITCH_STAT_RESET) { |
| log_info("%d audio_switch_state to start start mode %d", |
| avsync->session_id, start_mode); |
| avsync->audio_switch_state = AUDIO_SWITCH_STAT_START; |
| } |
| |
| if (start_mode == AVS_START_SYNC) { |
| ret = AV_SYNC_ASTART_SYNC; |
| avsync->session_started = true; |
| avsync->state = AV_SYNC_STAT_RUNNING; |
| } else if (start_mode == AVS_START_ASYNC) { |
| ret = AV_SYNC_ASTART_ASYNC; |
| avsync->state = AV_SYNC_STAT_RUNNING; |
| } else if (start_mode == AVS_START_AGAIN) { |
| ret = AV_SYNC_ASTART_AGAIN; |
| } |
| |
| if (ret == AV_SYNC_ASTART_AGAIN) |
| goto exit; |
| |
| if (avsync->mode == AV_SYNC_MODE_AMASTER || avsync->in_audio_switch) { |
| create_poll_t = true; |
| if (start_mode == AVS_START_ASYNC) { |
| if (!cb) { |
| log_error("[%d]invalid cb", avsync->session_id); |
| return AV_SYNC_ASTART_ERR; |
| } |
| avsync->audio_start = cb; |
| avsync->audio_start_priv = priv; |
| } |
| } else if (LIVE_MODE(avsync->mode)) |
| create_poll_t = true; |
| |
| if (create_poll_t && !avsync->poll_thread) { |
| int ret; |
| |
| log_info("[%d]start poll thread", avsync->session_id); |
| avsync->quit_poll = false; |
| ret = pthread_create(&avsync->poll_thread, NULL, poll_thread, avsync); |
| if (ret) { |
| log_error("[%d]create poll thread errno %d", avsync->session_id, errno); |
| return AV_SYNC_ASTART_ERR; |
| } |
| } |
| if (LIVE_MODE(avsync->mode)) { |
| uint32_t systime; |
| msync_session_get_wall(avsync->fd, &systime, NULL); |
| log_info("[%d]return %u w %u pts %u d %u", |
| avsync->session_id, ret, systime, pts, delay); |
| } |
| exit: |
| log_info("[%d]return %u", avsync->session_id, ret); |
| return ret; |
| } |
| |
| int av_sync_audio_render( |
| void *sync, |
| pts90K pts, |
| struct audio_policy *policy) |
| { |
| int ret = 0; |
| bool out_lier = false; |
| uint32_t systime; |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| avs_audio_action action = AA_SYNC_AA_MAX; |
| |
| if (!avsync || !policy) |
| return -1; |
| |
| msync_session_get_wall(avsync->fd, &systime, NULL); |
| |
| log_trace("audio render pts %u, systime %u, mode %u diff ms %d", |
| pts, systime, avsync->mode, (int)(pts-systime)/90); |
| |
| if (avsync->in_audio_switch |
| && avsync->audio_switch_state == AUDIO_SWITCH_STAT_START) { |
| if (abs_diff(systime, pts) < A_ADJ_THREDHOLD_HB) { |
| log_info("Audio pts in system range sys %u pts %u\n", systime, pts); |
| avsync->audio_switch_state = AUDIO_SWITCH_STAT_FINISH; |
| action = AV_SYNC_AA_RENDER; |
| } else if ((int)(systime - pts) > 0) { |
| log_info("[%d] audio change drop %d ms sys %u pts %u", avsync->session_id, |
| (int)(systime - pts)/90, systime, pts); |
| action = AV_SYNC_AA_DROP; |
| } else { |
| action = AV_SYNC_AA_INSERT; |
| log_info("[%d] audio change insert %d ms sys %u pts %u", avsync->session_id, |
| (int)(pts - systime)/90, systime, pts); |
| } |
| goto done; |
| } |
| |
| if (avsync->mode == AV_SYNC_MODE_FREE_RUN || |
| avsync->mode == AV_SYNC_MODE_AMASTER) { |
| action = AV_SYNC_AA_RENDER; |
| goto done; |
| } |
| |
| /* stopping procedure, unblock audio rendering */ |
| if (avsync->mode == AV_SYNC_MODE_PCR_MASTER && |
| avsync->active_mode == AV_SYNC_MODE_FREE_RUN) { |
| action = AV_SYNC_AA_DROP; |
| goto done; |
| } |
| |
| if (avsync->mode == AV_SYNC_MODE_FREE_RUN || |
| avsync->mode == AV_SYNC_MODE_AMASTER) { |
| action = AV_SYNC_AA_RENDER; |
| goto done; |
| } |
| |
| if (avsync->state == AV_SYNC_STAT_SYNC_SETUP && |
| LIVE_MODE(avsync->mode) && |
| abs_diff(systime, pts) > STREAM_DISC_THRES) { |
| /* outlier by stream error */ |
| avsync->outlier_cnt++; |
| if (avsync->outlier_cnt > OUTLIER_MAX_CNT) { |
| /* treat as disc, just drop current frame */ |
| avsync->state = AV_SYNC_STAT_SYNC_LOST; |
| avsync->outlier_cnt = 0; |
| action = AV_SYNC_AA_DROP; |
| systime = pts; |
| goto done; |
| } |
| log_info("[%d]ignore outlier %u", avsync->session_id, pts); |
| pts = systime; |
| action = AV_SYNC_AA_RENDER; |
| out_lier = true; |
| goto done; |
| } |
| |
| avsync->outlier_cnt = 0; |
| /* low bound from sync_lost to sync_setup */ |
| if (abs_diff(systime, pts) < A_ADJ_THREDHOLD_LB) { |
| avsync->state = AV_SYNC_STAT_SYNC_SETUP; |
| action = AV_SYNC_AA_RENDER; |
| goto done; |
| } |
| |
| /* high bound of sync_setup */ |
| if (abs_diff(systime, pts) < A_ADJ_THREDHOLD_HB && |
| avsync->state != AV_SYNC_STAT_SYNC_LOST) { |
| avsync->state = AV_SYNC_STAT_SYNC_SETUP; |
| action = AV_SYNC_AA_RENDER; |
| goto done; |
| } |
| |
| if ((int)(systime - pts) > 0) { |
| avsync->state = AV_SYNC_STAT_SYNC_LOST; |
| action = AV_SYNC_AA_DROP; |
| goto done; |
| } |
| |
| if ((int)(systime - pts) < 0) { |
| avsync->state = AV_SYNC_STAT_SYNC_LOST; |
| action = AV_SYNC_AA_INSERT; |
| goto done; |
| } |
| |
| done: |
| policy->action = action; |
| policy->delta = (int)(systime - pts); |
| if (action == AV_SYNC_AA_RENDER) { |
| avsync->apts = pts; |
| if (!avsync->in_audio_switch) { |
| if (!out_lier) |
| msync_session_update_apts(avsync->fd, systime, pts, 0); |
| log_debug("[%d]return %d sys %u - pts %u = %d", |
| avsync->session_id, action, systime, pts, systime - pts); |
| } else if(avsync->audio_switch_state == AUDIO_SWITCH_STAT_FINISH) { |
| msync_session_update_apts(avsync->fd, systime, pts, 0); |
| log_info("[%d] audio switch done sys %u pts %u", |
| avsync->session_id, systime, pts); |
| msync_session_set_audio_switch(avsync->fd, false); |
| avsync->in_audio_switch = false; |
| avsync->audio_switch_state = AUDIO_SWITCH_STAT_INIT; |
| } else { |
| log_trace("[%d] in audio switch ret %d sys %u - pts %u = %d", |
| avsync->session_id, action, systime, pts, systime - pts); |
| } |
| avsync->audio_drop_cnt = 0; |
| } else { |
| if (abs_diff(systime, pts) > avsync->disc_thres_min && |
| avsync->last_disc_pts != pts && |
| !avsync->in_audio_switch) { |
| log_info ("[%d]audio disc %u --> %u", |
| avsync->session_id, systime, pts); |
| msync_session_set_audio_dis(avsync->fd, pts); |
| avsync->last_disc_pts = pts; |
| } else if (action == AV_SYNC_AA_DROP) { |
| struct timeval now; |
| |
| /* dropping recovery */ |
| gettimeofday(&now, NULL); |
| if (!avsync->audio_drop_cnt) |
| avsync->audio_drop_start = now; |
| avsync->audio_drop_cnt++; |
| if (time_diff(&now, &avsync->audio_drop_start) > 500000) { |
| log_info ("[%d]audio keep dropping sys %u vs a %u", |
| avsync->session_id, systime, pts); |
| msync_session_set_audio_dis(avsync->fd, pts); |
| } |
| } |
| if (action != AV_SYNC_AA_DROP) |
| avsync->audio_drop_cnt = 0; |
| log_debug("[%d]return %d sys %u - pts %u = %d", |
| avsync->session_id, action, systime, pts, systime - pts); |
| } |
| |
| return ret; |
| } |
| |
| int av_sync_get_clock(void *sync, pts90K *pts) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync || !pts) |
| return -1; |
| return msync_session_get_wall(avsync->fd, pts, NULL); |
| } |
| |
| static void handle_mode_change_a(struct av_sync_session* avsync, |
| bool v_active, bool a_active, bool v_timeout) |
| { |
| log_info("[%d]amode %d mode %d v/a/vt %d/%d/%d", avsync->session_id, |
| avsync->active_mode, avsync->mode, v_active, a_active, v_timeout); |
| if (avsync->active_mode == AV_SYNC_MODE_AMASTER) { |
| float speed; |
| if (avsync->start_policy == AV_SYNC_START_ALIGN && |
| a_active && avsync->audio_start) { |
| if (v_active || v_timeout || avsync->in_audio_switch) { |
| log_info("audio start cb"); |
| trigger_audio_start_cb(avsync, AV_SYNC_ASCB_OK); |
| } |
| } |
| |
| if (!msync_session_get_rate(avsync->fd, &speed)) { |
| /* speed change is triggered by asink, |
| * attached audio HAL will handle it |
| */ |
| if (speed != avsync->speed) |
| log_info("[%d]new rate %f", avsync->session_id, speed); |
| if (speed == 1.0) { |
| avsync->mode = avsync->backup_mode; |
| log_info("[%d]audio back to mode %d", avsync->session_id, avsync->mode); |
| } else { |
| avsync->backup_mode = avsync->mode; |
| avsync->mode = AV_SYNC_MODE_FREE_RUN; |
| log_info("[%d]audio to freerun mode", avsync->session_id); |
| } |
| avsync->speed = speed; |
| } |
| } else if (avsync->active_mode == AV_SYNC_MODE_PCR_MASTER) { |
| struct session_debug debug; |
| if (!msync_session_get_debug_mode(avsync->fd, &debug)) { |
| if (debug.debug_freerun) { |
| avsync->backup_mode = avsync->mode; |
| avsync->mode = AV_SYNC_MODE_FREE_RUN; |
| log_warn("[%d]audio to freerun mode", avsync->session_id); |
| } else { |
| avsync->mode = avsync->backup_mode; |
| log_warn("[%d]audio back to mode %d", |
| avsync->session_id, avsync->mode); |
| } |
| } |
| } |
| } |
| |
| static void handle_mode_change_v(struct av_sync_session* avsync, |
| bool v_active, bool a_active, bool v_timeout) |
| { |
| log_info("[%d]amode mode %d %d v/a %d/%d", avsync->session_id, |
| avsync->active_mode, avsync->mode, v_active, a_active); |
| if (avsync->active_mode == AV_SYNC_MODE_PCR_MASTER) { |
| struct session_debug debug; |
| if (!msync_session_get_debug_mode(avsync->fd, &debug)) { |
| if (debug.debug_freerun) { |
| avsync->backup_mode = avsync->mode; |
| avsync->mode = AV_SYNC_MODE_FREE_RUN; |
| log_warn("[%d]video to freerun mode", avsync->session_id); |
| } else |
| avsync->mode = avsync->backup_mode; |
| log_warn("[%d]video back to mode %d", |
| avsync->session_id, avsync->mode); |
| } |
| } |
| } |
| |
| static void * poll_thread(void * arg) |
| { |
| int ret = 0; |
| struct av_sync_session *avsync = (struct av_sync_session *)arg; |
| const int fd = avsync->fd; |
| struct pollfd pfd = { |
| /* default blocking capture */ |
| .events = POLLIN | POLLRDNORM | POLLPRI | POLLOUT | POLLWRNORM, |
| .fd = avsync->fd, |
| }; |
| |
| prctl (PR_SET_NAME, "avs_poll"); |
| log_info("[%d]enter", avsync->session_id); |
| while (!avsync->quit_poll) { |
| for (;;) { |
| ret = poll(&pfd, 1, 10); |
| if (ret > 0) |
| break; |
| if (avsync->quit_poll) |
| goto exit; |
| if (errno == EINTR) |
| continue; |
| } |
| |
| /* error handling */ |
| if (pfd.revents & POLLERR) |
| log_error("[%d]POLLERR received", avsync->session_id); |
| |
| /* mode change. Non-exclusive wait so all the processes |
| * shall be woken up |
| */ |
| if (pfd.revents & POLLPRI) { |
| bool v_active, a_active, v_timeout; |
| |
| msync_session_get_stat(fd, &avsync->active_mode, |
| &v_active, &a_active, &v_timeout, &avsync->in_audio_switch); |
| |
| if (avsync->type == AV_SYNC_TYPE_AUDIO) |
| handle_mode_change_a(avsync, v_active, a_active, v_timeout); |
| else if (avsync->type == AV_SYNC_TYPE_VIDEO) |
| handle_mode_change_v(avsync, v_active, a_active, v_timeout); |
| } |
| } |
| exit: |
| log_info("[%d]quit", avsync->session_id); |
| return NULL; |
| } |
| |
| int av_sync_set_pcr_clock(void *sync, pts90K pts, uint64_t mono_clock) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| struct pcr_info pcr; |
| enum pcr_monitor_status status; |
| int ppm; |
| if (!avsync) |
| return -1; |
| |
| if (avsync->type != AV_SYNC_TYPE_PCR) |
| return -2; |
| |
| pcr.monoclk = mono_clock / 1000; |
| pcr.pts = (long long) pts * 1000 / 90; |
| pcr_monitor_process(avsync->pcr_monitor, &pcr); |
| |
| status = pcr_monitor_get_status(avsync->pcr_monitor); |
| |
| if (status >= DEVIATION_READY) { |
| pcr_monitor_get_deviation(avsync->pcr_monitor, &ppm); |
| if (avsync->ppm != ppm) { |
| avsync->ppm = ppm; |
| log_info("[%d]ppm:%d", avsync->session_id, ppm); |
| if (msync_session_set_clock_dev(avsync->fd, ppm)) |
| log_error("set clock dev fail"); |
| } |
| } |
| |
| return msync_session_set_pcr(avsync->fd, pts, mono_clock); |
| } |
| |
| int av_sync_get_pcr_clock(void *sync, pts90K *pts, uint64_t * mono_clock) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync) |
| return -1; |
| |
| return msync_session_get_pcr(avsync->fd, pts, mono_clock); |
| } |
| |
| int av_sync_set_session_name(void *sync, const char *name) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync) |
| return -1; |
| |
| return msync_session_set_name(avsync->fd, name); |
| } |
| |
| int av_sync_set_audio_switch(void *sync, bool start) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| bool v_active, a_active, v_timeout; |
| |
| if (!avsync) |
| return -1; |
| if (msync_session_get_stat(avsync->fd, &avsync->active_mode, |
| &v_active, &a_active, |
| &v_timeout, &avsync->in_audio_switch)) { |
| log_error("[%d] can not get session state", |
| avsync->session_id); |
| return -1; |
| } |
| if (!v_active || !a_active) { |
| log_error("[%d] no apply if not AV both active v %d a %d", |
| avsync->session_id, v_active, a_active); |
| return -1; |
| } |
| if (msync_session_set_audio_switch(avsync->fd, start)) { |
| log_error("[%d]fail to set audio switch %d", avsync->session_id, start); |
| return -1; |
| } |
| avsync->in_audio_switch = start; |
| avsync->audio_switch_state = AUDIO_SWITCH_STAT_INIT; |
| log_info("[%d]update audio switch to %d", avsync->session_id, start); |
| return 0; |
| } |
| |
| int av_sync_get_audio_switch(void *sync, bool *start) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync) |
| return -1; |
| if (msync_session_get_stat(avsync->fd, &avsync->active_mode, |
| NULL, NULL, NULL, &avsync->in_audio_switch)) { |
| log_error("[%d] can not audio seamless switch state", |
| avsync->session_id); |
| return -1; |
| } |
| if (start) *start = avsync->in_audio_switch; |
| return 0; |
| } |
| |
| enum clock_recovery_stat av_sync_get_clock_devication(void *sync, int32_t *ppm) |
| { |
| struct av_sync_session *avsync = (struct av_sync_session *)sync; |
| |
| if (!avsync || !ppm) |
| return CLK_RECOVERY_ERR; |
| if (avsync->mode != AV_SYNC_MODE_PCR_MASTER) |
| return CLK_RECOVERY_NOT_RUNNING; |
| |
| if (msync_session_get_clock_dev(avsync->fd, ppm)) |
| return CLK_RECOVERY_ERR; |
| |
| if (*ppm == 0) |
| return CLK_RECOVERY_ONGOING; |
| else |
| return CLK_RECOVERY_READY; |
| } |