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FFmpeg
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Merge remote-tracking branch 'cus/stable' 

* cus/stable:
  ffplay: do not cycle through unavailable show modes
  ffplay: add option to disable subtitling
  ffplay: use NAN to signal invalid external clock
  ffplay: if audio or video clock is invalid return NAN
  ffplay: allow frame dropping if we redisplay an already displayed frame
  ffplay: return true for pictq_prev_picture if it was successful
  ffplay: only quit from audio_decode_frame before decoding when paused
  ffplay: drop remaining frames in current audio avpacket when seeking
  ffplay: signal seek event to read thread

Merged-by: Michael Niedermayer <michaelni@gmx.at>
tags/n1.2
Michael Niedermayer 13 years ago
parent
1c6477f30f ac37d21f49
commit
e54a1bdc21
1 changed files with 50 additions and 20 deletions
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  1. +50
    -20
      ffplay.c

+ 50
- 20
ffplay.c View File

@@ -176,6 +176,7 @@ typedef struct VideoState {
double external_clock_speed; ///< speed of the external clock

double audio_clock;
int audio_clock_serial;
double audio_diff_cum; /* used for AV difference average computation */
double audio_diff_avg_coef;
double audio_diff_threshold;
@@ -238,6 +239,7 @@ typedef struct VideoState {
double video_current_pts_drift; // video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
int64_t video_current_pos; // current displayed file pos
double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity
int video_clock_serial;
VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
int pictq_size, pictq_rindex, pictq_windex;
SDL_mutex *pictq_mutex;
@@ -275,6 +277,7 @@ static int screen_width = 0;
static int screen_height = 0;
static int audio_disable;
static int video_disable;
static int subtitle_disable;
static int wanted_stream[AVMEDIA_TYPE_NB] = {
[AVMEDIA_TYPE_AUDIO] = -1,
[AVMEDIA_TYPE_VIDEO] = -1,
@@ -1079,6 +1082,8 @@ static void video_display(VideoState *is)
/* get the current audio clock value */
static double get_audio_clock(VideoState *is)
{
if (is->audio_clock_serial != is->audioq.serial)
return NAN;
if (is->paused) {
return is->audio_current_pts;
} else {
@@ -1089,6 +1094,8 @@ static double get_audio_clock(VideoState *is)
/* get the current video clock value */
static double get_video_clock(VideoState *is)
{
if (is->video_clock_serial != is->videoq.serial)
return NAN;
if (is->paused) {
return is->video_current_pts;
} else {
@@ -1150,7 +1157,8 @@ static void update_external_clock_pts(VideoState *is, double pts)
}

static void check_external_clock_sync(VideoState *is, double pts) {
if (fabs(get_external_clock(is) - pts) > AV_NOSYNC_THRESHOLD) {
double ext_clock = get_external_clock(is);
if (isnan(ext_clock) || fabs(ext_clock - pts) > AV_NOSYNC_THRESHOLD) {
update_external_clock_pts(is, pts);
}
}
@@ -1184,6 +1192,7 @@ static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_by
if (seek_by_bytes)
is->seek_flags |= AVSEEK_FLAG_BYTE;
is->seek_req = 1;
SDL_CondSignal(is->continue_read_thread);
}
}

@@ -1229,7 +1238,7 @@ static double compute_target_delay(double delay, VideoState *is)
delay to compute the threshold. I still don't know
if it is the best guess */
sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) {
if (diff <= -sync_threshold)
delay = 0;
else if (diff >= sync_threshold)
@@ -1254,8 +1263,9 @@ static void pictq_next_picture(VideoState *is) {
SDL_UnlockMutex(is->pictq_mutex);
}

static void pictq_prev_picture(VideoState *is) {
static int pictq_prev_picture(VideoState *is) {
VideoPicture *prevvp;
int ret = 0;
/* update queue size and signal for the previous picture */
prevvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE];
if (prevvp->allocated && prevvp->serial == is->videoq.serial) {
@@ -1264,10 +1274,12 @@ static void pictq_prev_picture(VideoState *is) {
if (--is->pictq_rindex == -1)
is->pictq_rindex = VIDEO_PICTURE_QUEUE_SIZE - 1;
is->pictq_size++;
ret = 1;
}
SDL_CondSignal(is->pictq_cond);
SDL_UnlockMutex(is->pictq_mutex);
}
return ret;
}

static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
@@ -1277,6 +1289,7 @@ static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial
is->video_current_pts_drift = is->video_current_pts - time;
is->video_current_pos = pos;
is->frame_last_pts = pts;
is->video_clock_serial = serial;
if (is->videoq.serial == serial)
check_external_clock_sync(is, is->video_current_pts);
}
@@ -1303,8 +1316,9 @@ static void video_refresh(void *opaque, double *remaining_time)
}

if (is->video_st) {
int redisplay = 0;
if (is->force_refresh)
pictq_prev_picture(is);
redisplay = pictq_prev_picture(is);
retry:
if (is->pictq_size == 0) {
SDL_LockMutex(is->pictq_mutex);
@@ -1321,6 +1335,7 @@ retry:

if (vp->serial != is->videoq.serial) {
pictq_next_picture(is);
redisplay = 0;
goto retry;
}

@@ -1351,9 +1366,11 @@ retry:
if (is->pictq_size > 1) {
VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
duration = nextvp->pts - vp->pts;
if(!is->step && (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
is->frame_drops_late++;
if(!is->step && (redisplay || framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
if (!redisplay)
is->frame_drops_late++;
pictq_next_picture(is);
redisplay = 0;
goto retry;
}
}
@@ -1669,7 +1686,7 @@ static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacke
double clockdiff = get_video_clock(is) - get_master_clock(is);
double dpts = av_q2d(is->video_st->time_base) * *pts;
double ptsdiff = dpts - is->frame_last_pts;
if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
if (!isnan(clockdiff) && fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
is->frame_last_dropped_pos = pkt->pos;
@@ -2030,7 +2047,7 @@ static int synchronize_audio(VideoState *is, int nb_samples)

diff = get_audio_clock(is) - get_master_clock(is);

if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) {
is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
/* not enough measures to have a correct estimate */
@@ -2089,6 +2106,9 @@ static int audio_decode_frame(VideoState *is)
} else
avcodec_get_frame_defaults(is->frame);

if (is->audioq.serial != is->audio_pkt_temp_serial)
break;

if (is->paused)
return -1;

@@ -2192,7 +2212,7 @@ static int audio_decode_frame(VideoState *is)
av_free_packet(pkt);
memset(pkt_temp, 0, sizeof(*pkt_temp));

if (is->paused || is->audioq.abort_request) {
if (is->audioq.abort_request) {
return -1;
}

@@ -2213,6 +2233,7 @@ static int audio_decode_frame(VideoState *is)
/* if update the audio clock with the pts */
if (pkt->pts != AV_NOPTS_VALUE) {
is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
is->audio_clock_serial = is->audio_pkt_temp_serial;
}
}
}
@@ -2254,7 +2275,7 @@ static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
/* Let's assume the audio driver that is used by SDL has two periods. */
is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
if (is->audioq.serial == is->audio_pkt_temp_serial)
if (is->audioq.serial == is->audio_clock_serial)
check_external_clock_sync(is, is->audio_current_pts);
}

@@ -2615,7 +2636,7 @@ static int read_thread(void *arg)
wanted_stream[AVMEDIA_TYPE_AUDIO],
st_index[AVMEDIA_TYPE_VIDEO],
NULL, 0);
if (!video_disable)
if (!video_disable && !subtitle_disable)
st_index[AVMEDIA_TYPE_SUBTITLE] =
av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
wanted_stream[AVMEDIA_TYPE_SUBTITLE],
@@ -2698,8 +2719,7 @@ static int read_thread(void *arg)
packet_queue_put(&is->videoq, &flush_pkt);
}
if (is->seek_flags & AVSEEK_FLAG_BYTE) {
//FIXME: use a cleaner way to signal obsolete external clock...
update_external_clock_pts(is, (double)AV_NOPTS_VALUE);
update_external_clock_pts(is, NAN);
} else {
update_external_clock_pts(is, seek_target / (double)AV_TIME_BASE);
}
@@ -2835,11 +2855,12 @@ static VideoState *stream_open(const char *filename, AVInputFormat *iformat)

is->continue_read_thread = SDL_CreateCond();

//FIXME: use a cleaner way to signal obsolete external clock...
update_external_clock_pts(is, (double)AV_NOPTS_VALUE);
update_external_clock_pts(is, NAN);
update_external_clock_speed(is, 1.0);
is->audio_current_pts_drift = -av_gettime() / 1000000.0;
is->video_current_pts_drift = is->audio_current_pts_drift;
is->audio_clock_serial = -1;
is->video_clock_serial = -1;
is->av_sync_type = av_sync_type;
is->read_tid = SDL_CreateThread(read_thread, is);
if (!is->read_tid) {
@@ -2922,10 +2943,17 @@ static void toggle_full_screen(VideoState *is)
static void toggle_audio_display(VideoState *is)
{
int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
fill_rectangle(screen,
is->xleft, is->ytop, is->width, is->height,
bgcolor, 1);
int next = is->show_mode;
do {
next = (next + 1) % SHOW_MODE_NB;
} while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st));
if (is->show_mode != next) {
fill_rectangle(screen,
is->xleft, is->ytop, is->width, is->height,
bgcolor, 1);
is->force_refresh = 1;
is->show_mode = next;
}
}

static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) {
@@ -2987,7 +3015,6 @@ static void event_loop(VideoState *cur_stream)
break;
case SDLK_w:
toggle_audio_display(cur_stream);
cur_stream->force_refresh = 1;
break;
case SDLK_PAGEUP:
incr = 600.0;
@@ -3022,6 +3049,8 @@ static void event_loop(VideoState *cur_stream)
stream_seek(cur_stream, pos, incr, 1);
} else {
pos = get_master_clock(cur_stream);
if (isnan(pos))
pos = (double)cur_stream->seek_pos / AV_TIME_BASE;
pos += incr;
if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE)
pos = cur_stream->ic->start_time / (double)AV_TIME_BASE;
@@ -3209,6 +3238,7 @@ static const OptionDef options[] = {
{ "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
{ "an", OPT_BOOL, { &audio_disable }, "disable audio" },
{ "vn", OPT_BOOL, { &video_disable }, "disable video" },
{ "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" },
{ "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
{ "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
{ "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },


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