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ffmpeg: probe buffersinks once more after EOF.

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Reap buffers stored in the buffer sinks even when
the avfilter_graph_request_oldest() loop only returns EOF.

avfilter_graph_request_oldest() can cause frames to arrive
to the sinks even when it returns EOF.
This commit is contained in:
Nicolas George
2012-07-17 18:02:33 +02:00
parent 5e99df019a
commit bf8ce5a5c3
1 changed files with 3 additions and 3 deletions
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6
ffmpeg.c
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@@ -1928,7 +1928,7 @@ static int poll_filters(void)
AVFilterBufferRef *picref;
AVFrame *filtered_frame = NULL;
int i, ret, ret_all;
unsigned nb_success, nb_eof;
unsigned nb_success = 1, av_uninit(nb_eof);
int64_t frame_pts;
while (1) {
@@ -2001,6 +2001,8 @@ static int poll_filters(void)
avfilter_unref_buffer(picref);
}
}
if (!nb_success) /* from last round */
break;
/* Request frames through all the graphs */
ret_all = nb_success = nb_eof = 0;
for (i = 0; i < nb_filtergraphs; i++) {
@@ -2017,8 +2019,6 @@ static int poll_filters(void)
ret_all = ret;
}
}
if (!nb_success)
break;
/* Try again if anything succeeded */
}
return nb_eof == nb_filtergraphs ? AVERROR_EOF : ret_all;