[FFmpeg-devel] [PATCH 2/5] lavf/demux: treat EAGAIN as REDO unless AVFMT_FLAG_NONBLOCK is set

Anton Khirnov anton at khirnov.net
Thu Nov 10 14:31:44 EET 2022


Quoting Michael Niedermayer (2022-11-10 13:28:27)
> On Tue, Nov 08, 2022 at 12:25:47PM +0100, Anton Khirnov wrote:
> > Lavf only supports a very limited approximation of non-blocking
> > behavior, so we should not return random EAGAINs to callers unless they
> > specifically requested it.
> > ---
> >  libavformat/demux.c | 8 ++++++--
> >  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> this changes seeking behavior of for example:
> libavformat/tests/seek fate-suite/dss/sp.dss
> 
> (this seemed to return EAGAIN before sometimes)

Are you saying that is wrong? I don't see why seeks should return EAGAIN
either.

-- 
Anton Khirnov


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