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Code Issues Releases Activity

avconv: stop using setpts for input framerate forced with -r

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The setpts filter does not signal to the rest of the filtergraph that
the stream is CFR. Just generate the timestamps manually instead.
This commit is contained in:
Anton Khirnov 2016-07-15 06:50:47 +02:00
parent 9064777dbb
commit b0f36a0043
4 changed files with 10 additions and 18 deletions

2
avconv.c

@ -1392,6 +1392,8 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pts,
decoded_frame->pkt_dts);
if (ist->framerate.num)
decoded_frame->pts = ist->cfr_next_pts++;
if (ist->st->sample_aspect_ratio.num)
decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;

5
avconv.h

@ -269,6 +269,11 @@ typedef struct InputStream {
int64_t last_dts;
int64_t min_pts; /* pts with the smallest value in a current stream */
int64_t max_pts; /* pts with the higher value in a current stream */
// when forcing constant input framerate through -r,
// this contains the pts that will be given to the next decoded frame
int64_t cfr_next_pts;
int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
PtsCorrectionContext pts_ctx;
double ts_scale;

19
avconv_filter.c

@ -519,6 +519,8 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
par->height = ifilter->height;
par->format = ifilter->format;
par->time_base = tb;
if (ist->framerate.num)
par->frame_rate = ist->framerate;
par->hw_frames_ctx = ifilter->hw_frames_ctx;
ret = av_buffersrc_parameters_set(ifilter->filter, par);
@ -552,23 +554,6 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
}
}
if (ist->framerate.num) {
AVFilterContext *setpts;
snprintf(name, sizeof(name), "force CFR for input from stream %d:%d",
ist->file_index, ist->st->index);
if ((ret = avfilter_graph_create_filter(&setpts,
avfilter_get_by_name("setpts"),
name, "N", NULL,
fg->graph)) < 0)
return ret;
if ((ret = avfilter_link(last_filter, 0, setpts, 0)) < 0)
return ret;
last_filter = setpts;
}
snprintf(name, sizeof(name), "trim for input stream %d:%d",
ist->file_index, ist->st->index);
ret = insert_trim(((f->start_time == AV_NOPTS_VALUE) || !f->accurate_seek) ?

2
configure vendored

@ -2436,7 +2436,7 @@ swscale_deps="avutil"
avconv_deps="avcodec avfilter avformat avresample swscale"
avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
fps_filter null_filter resample_filter scale_filter
setpts_filter trim_filter"
trim_filter"
avplay_deps="avcodec avfilter avformat avresample sdl"
avplay_libs='$sdl_libs'
avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"