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ffmpeg: use AV_BUFFERSRC_FLAG_PUSH. 

It reduces the lifespan of buffers in filter graphs,
and therefore the memory consumption.
This commit is contained in:
Nicolas George 2012-08-19 18:08:40 +02:00
parent 3f943fe681
commit ac07f941ae
1 changed files with 7 additions and 4 deletions
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11
ffmpeg.c
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@ -193,7 +193,8 @@ static void sub2video_push_ref(InputStream *ist, int64_t pts)
av_buffersrc_add_ref(ist->filters[i]->filter,
avfilter_ref_buffer(ref, ~0),
AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
AV_BUFFERSRC_FLAG_NO_COPY);
AV_BUFFERSRC_FLAG_NO_COPY |
AV_BUFFERSRC_FLAG_PUSH);
}
static void sub2video_update(InputStream *ist, AVSubtitle *sub, int64_t pts)
@ -1508,7 +1509,8 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
decoded_frame_tb,
(AVRational){1, ist->st->codec->sample_rate});
for (i = 0; i < ist->nb_filters; i++)
av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, 0);
av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame,
AV_BUFFERSRC_FLAG_PUSH);
decoded_frame->pts = AV_NOPTS_VALUE;
@ -1619,9 +1621,10 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
buf->refcount++;
av_buffersrc_add_ref(ist->filters[i]->filter, fb,
AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
AV_BUFFERSRC_FLAG_NO_COPY);
AV_BUFFERSRC_FLAG_NO_COPY |
AV_BUFFERSRC_FLAG_PUSH);
} else
if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, 0)<0) {
if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, AV_BUFFERSRC_FLAG_PUSH)<0) {
av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
exit_program(1);
}