[FFmpeg-devel] [PATCH] lavfi/avfiltergraph: only return EOF in avfilter_graph_request_oldest if all sinks EOFed

Marton Balint cus at passwd.hu
Sun May 7 16:47:55 EEST 2017

On Sun, 7 May 2017, Nicolas George wrote:

> Le septidi 17 floréal, an CCXXV, Marton Balint a écrit :
>> Fixes a regression introduced in 32c59a115d3cc757676b5384a5ea44b5a7a7b872,
>> becoming effective in 912969a33e313c57c906e87a7e2367b78a2160f4.
>> Fixes trimmed output of
>> ffmpeg -f lavfi -i "sine=d=0.01" -f lavfi -i "sine=d=1" -filter_complex "[0:a]anull[a1];[1:a]anull[a2]" -map "[a1]" -f null none -map "[a2]" -f framecrc -
>> ---
>>  libavfilter/avfiltergraph.c | 9 ++++++---
>>  1 file changed, 6 insertions(+), 3 deletions(-)
> LGTM, thanks for finding that.
> Out of curiosity, how did you arrive to a graph with buffersc and
> buffersink connected directly?

The original command and filter graph which I used when I hit this bug was 
quite complex and was operating on a real file, I had to come up with a 
simplified version to make debugging easier.

Obviously you can replace anull with any audio filter and still experience 
the trimmed output.


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