/* maximum audio speed change to get correct sync */
#define SAMPLE_CORRECTION_PERCENT_MAX 10
+/* external clock speed adjustment constants for realtime sources based on buffer fullness */
+#define EXTERNAL_CLOCK_SPEED_MIN 0.900
+#define EXTERNAL_CLOCK_SPEED_MAX 1.010
+#define EXTERNAL_CLOCK_SPEED_STEP 0.001
+
/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
#define AUDIO_DIFF_AVG_NB 20
int64_t seek_rel;
int read_pause_return;
AVFormatContext *ic;
+ int realtime;
int audio_stream;
double external_clock; ///< external clock base
double external_clock_drift; ///< external clock base - time (av_gettime) at which we updated external_clock
int64_t external_clock_time; ///< last reference time
+ double external_clock_speed; ///< speed of the external clock
double audio_clock;
double audio_diff_cum; /* used for AV difference average computation */
double video_current_pts; // current displayed pts (different from video_clock if frame fifos are used)
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
VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
int pictq_size, pictq_rindex, pictq_windex;
SDL_mutex *pictq_mutex;
#if !CONFIG_AVFILTER
struct SwsContext *img_convert_ctx;
#endif
+ SDL_Rect last_display_rect;
char filename[1024];
int width, height, xleft, ytop;
}
static inline void fill_rectangle(SDL_Surface *screen,
- int x, int y, int w, int h, int color)
+ int x, int y, int w, int h, int color, int update)
{
SDL_Rect rect;
rect.x = x;
rect.w = w;
rect.h = h;
SDL_FillRect(screen, &rect, color);
+ if (update && w > 0 && h > 0)
+ SDL_UpdateRect(screen, x, y, w, h);
+}
+
+/* draw only the border of a rectangle */
+static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update)
+{
+ int w1, w2, h1, h2;
+
+ /* fill the background */
+ w1 = x;
+ if (w1 < 0)
+ w1 = 0;
+ w2 = width - (x + w);
+ if (w2 < 0)
+ w2 = 0;
+ h1 = y;
+ if (h1 < 0)
+ h1 = 0;
+ h2 = height - (y + h);
+ if (h2 < 0)
+ h2 = 0;
+ fill_rectangle(screen,
+ xleft, ytop,
+ w1, height,
+ color, update);
+ fill_rectangle(screen,
+ xleft + width - w2, ytop,
+ w2, height,
+ color, update);
+ fill_rectangle(screen,
+ xleft + w1, ytop,
+ width - w1 - w2, h1,
+ color, update);
+ fill_rectangle(screen,
+ xleft + w1, ytop + height - h2,
+ width - w1 - w2, h2,
+ color, update);
}
#define ALPHA_BLEND(a, oldp, newp, s)\
calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp);
SDL_DisplayYUVOverlay(vp->bmp, &rect);
+
+ if (rect.x != is->last_display_rect.x || rect.y != is->last_display_rect.y || rect.w != is->last_display_rect.w || rect.h != is->last_display_rect.h || is->force_refresh) {
+ int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
+ fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1);
+ is->last_display_rect = rect;
+ }
}
}
if (s->show_mode == SHOW_MODE_WAVES) {
fill_rectangle(screen,
s->xleft, s->ytop, s->width, s->height,
- bgcolor);
+ bgcolor, 0);
fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
}
fill_rectangle(screen,
s->xleft + x, ys, 1, y,
- fgcolor);
+ fgcolor, 0);
i += channels;
if (i >= SAMPLE_ARRAY_SIZE)
i -= SAMPLE_ARRAY_SIZE;
y = s->ytop + ch * h;
fill_rectangle(screen,
s->xleft, y, s->width, 1,
- fgcolor);
+ fgcolor, 0);
}
SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
} else {
fill_rectangle(screen,
s->xpos, s->height-y, 1, 1,
- fgcolor);
+ fgcolor, 0);
}
}
SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
if (is->paused) {
return is->external_clock;
} else {
- return is->external_clock_drift + av_gettime() / 1000000.0;
+ double time = av_gettime() / 1000000.0;
+ return is->external_clock_drift + time - (time - is->external_clock_time / 1000000.0) * (1.0 - is->external_clock_speed);
}
}
}
}
+static void update_external_clock_speed(VideoState *is, double speed) {
+ update_external_clock_pts(is, get_external_clock(is));
+ is->external_clock_speed = speed;
+}
+
+static void check_external_clock_speed(VideoState *is) {
+ if (is->video_stream >= 0 && is->videoq.nb_packets <= MIN_FRAMES / 2 ||
+ is->audio_stream >= 0 && is->audioq.nb_packets <= MIN_FRAMES / 2) {
+ update_external_clock_speed(is, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->external_clock_speed - EXTERNAL_CLOCK_SPEED_STEP));
+ } else if ((is->video_stream < 0 || is->videoq.nb_packets > MIN_FRAMES * 2) &&
+ (is->audio_stream < 0 || is->audioq.nb_packets > MIN_FRAMES * 2)) {
+ update_external_clock_speed(is, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->external_clock_speed + EXTERNAL_CLOCK_SPEED_STEP));
+ } else {
+ double speed = is->external_clock_speed;
+ if (speed != 1.0)
+ update_external_clock_speed(is, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed));
+ }
+}
+
/* seek in the stream */
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
{
SubPicture *sp, *sp2;
+ if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)
+ check_external_clock_speed(is);
+
if (is->video_st) {
if (is->force_refresh)
pictq_prev_picture(is);
/* compute nominal last_duration */
last_duration = vp->pts - is->frame_last_pts;
- if (last_duration > 0 && last_duration < 10.0) {
+ if (last_duration > 0 && last_duration < is->max_frame_duration) {
/* if duration of the last frame was sane, update last_duration in video state */
is->frame_last_duration = last_duration;
}
goto fail;
}
- return avfilter_graph_config(graph, NULL);
+ ret = avfilter_graph_config(graph, NULL);
fail:
avfilter_inout_free(&outputs);
avfilter_inout_free(&inputs);
char buffersrc_args[256];
int ret;
AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
- AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format, *filt_crop;
+ AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_crop;
AVCodecContext *codec = is->video_st->codec;
+ if (!buffersink_params)
+ return AVERROR(ENOMEM);
+
snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
graph->scale_sws_opts = av_strdup(sws_flags_str);
avfilter_get_by_name("buffer"),
"ffplay_buffer", buffersrc_args, NULL,
graph)) < 0)
- return ret;
+ goto fail;
buffersink_params->pixel_fmts = pix_fmts;
ret = avfilter_graph_create_filter(&filt_out,
avfilter_get_by_name("ffbuffersink"),
"ffplay_buffersink", NULL, buffersink_params, graph);
- av_freep(&buffersink_params);
if (ret < 0)
- return ret;
+ goto fail;
/* SDL YUV code is not handling odd width/height for some driver
* combinations, therefore we crop the picture to an even width/height. */
if ((ret = avfilter_graph_create_filter(&filt_crop,
avfilter_get_by_name("crop"),
"ffplay_crop", "floor(in_w/2)*2:floor(in_h/2)*2", NULL, graph)) < 0)
- return ret;
- if ((ret = avfilter_graph_create_filter(&filt_format,
- avfilter_get_by_name("format"),
- "format", "yuv420p", NULL, graph)) < 0)
- return ret;
- if ((ret = avfilter_link(filt_crop, 0, filt_format, 0)) < 0)
- return ret;
- if ((ret = avfilter_link(filt_format, 0, filt_out, 0)) < 0)
- return ret;
+ goto fail;
+ if ((ret = avfilter_link(filt_crop, 0, filt_out, 0)) < 0)
+ goto fail;
if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_crop)) < 0)
- return ret;
+ goto fail;
is->in_video_filter = filt_src;
is->out_video_filter = filt_out;
+fail:
+ av_freep(&buffersink_params);
return ret;
}
avctx = ic->streams[stream_index]->codec;
codec = avcodec_find_decoder(avctx->codec_id);
- opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
switch(avctx->codec_type){
case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
if(codec->capabilities & CODEC_CAP_DR1)
avctx->flags |= CODEC_FLAG_EMU_EDGE;
+ opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
if (!av_dict_get(opts, "threads", NULL, 0))
av_dict_set(&opts, "threads", "auto", 0);
- if (!codec ||
- avcodec_open2(avctx, codec, &opts) < 0)
+ if (avcodec_open2(avctx, codec, &opts) < 0)
return -1;
if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
if (seek_by_bytes < 0)
seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
+ is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0;
+
/* if seeking requested, we execute it */
if (start_time != AV_NOPTS_VALUE) {
int64_t timestamp;
}
}
+ is->realtime = is_realtime(ic);
+
for (i = 0; i < ic->nb_streams; i++)
ic->streams[i]->discard = AVDISCARD_ALL;
if (!video_disable)
goto fail;
}
- if (infinite_buffer < 0 && is_realtime(ic))
+ if (infinite_buffer < 0 && is->realtime)
infinite_buffer = 1;
for (;;) {
packet_queue_flush(&is->videoq);
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);
+ } else {
+ update_external_clock_pts(is, seek_target / (double)AV_TIME_BASE);
+ }
}
- update_external_clock_pts(is, (seek_target + ic->start_time) / (double)AV_TIME_BASE);
is->seek_req = 0;
eof = 0;
}
is->continue_read_thread = SDL_CreateCond();
update_external_clock_pts(is, 0.0);
+ 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->av_sync_type = av_sync_type;
is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
fill_rectangle(screen,
is->xleft, is->ytop, is->width, is->height,
- bgcolor);
- SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
+ bgcolor, 1);
}
/* handle an event sent by the GUI */
} else {
pos = get_master_clock(cur_stream);
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;
stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
}
break;
projects / ffmpeg / blobdiff