[FFmpeg-devel] FFserver bug?

Michael Niedermayer michaelni at gmx.at
Wed Nov 5 02:08:35 CET 2014


On Wed, Nov 05, 2014 at 12:07:14AM +0100, Lukasz Marek wrote:
> On 31.10.2014 03:19, Michael Niedermayer wrote:
> >On Fri, Oct 31, 2014 at 02:14:29AM +0100, Sevan Gelici wrote:
> >>Hi,
> >>
> >>Two days ago i updated my linux system and also ffmpeg was updated. When i
> >>started to stream it was not working anymore. I am using ffserver. i
> >>determined the problem which causes the problem thats the bitrate it makes
> >>like 50mb of it. i reinstalled the system a couple times because of some
> >>tests and still i don't get it work. Can someone help me with this pls.
> >
> >do you know which commit / revission has caused the regression ?
> 
> I wanted to learn git bisect and checked it.
> 
> Last working rev is f478e8500a3d1fb0c6014956de42d87e292b9e3b
> 
> The issue is present at next merge commit:
> 9b7cb02319b65596b5ef106a830fd813248fb580

> but it segfaults. It can be fixed by cherry-picking:
> 24a324855cbdb8d1be3ac2cc5e22d007c38d7c8d

git show 24a324855cbdb8d1be3ac2cc5e22d007c38d7c8d
fatal: bad object 24a324855cbdb8d1be3ac2cc5e22d007c38d7c8d


> 
> Maybe worth to mention I recently created function to dump
> AvCodecContext, to test if ffm is transmitting context properly. And
> strange thing I noticed ffm demuxer's read_header callback is called
> only once, even though there are 2 streams. I haven't investigate it
> further yet, but it smells like a bug in ffmpeg tool.
> 

> BTW, during bisecting sometimes I landed in libav's tree (when
> merged commit was tested) Some one know how to avoid that?

see tools/bisect-create

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

If you think the mosad wants you dead since a long time then you are either
wrong or dead since a long time.
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