[FFmpeg-devel] [PATCH 0/9] Merge lazy filter initialization in ffmpeg CLI

[Michael Niedermayer]

On Fri, Feb 10, 2017 at 03:22:28PM +0100, Michael Niedermayer wrote:
> On Fri, Feb 10, 2017 at 03:15:29PM +0100, Michael Niedermayer wrote:
> > On Fri, Feb 10, 2017 at 01:35:32PM +0100, wm4 wrote:
> > > These patches merge the previously skipped Libav commits, which made
> > > avconv lazily initialize libavfilter graphs. This means the filters
> > > are initialized with the actual output format, instead of whatever
> > > libavformat reports.
> > > 
> > > It's a prerequisite to making hardware decoding support saner, as
> > > hardware decoders will output a different pixfmt than the software
> > > format reported by libavformat. This can be seen on ffmpeg_qsv.c,
> > > which doesn't lose any functionality, even though half of the code
> > > is removed.
> > > 
> > > There are some differences in how ffmpeg.c and avconv.c filter-flow
> > > works. Also, avconv.c doesn't have sub2video. Relatively intrusive
> > > changes were required.
> > > 
> > > The status of cuvid is unknown, but work in progress.
> > > 
> > > Anton Khirnov (4):
> > >   ffmpeg: do packet ts rescaling in write_packet()
> > >   ffmpeg: init filtergraphs only after we have a frame on each input
> > >   ffmpeg: move flushing the queued frames to configure_filtergraph()
> > >   ffmpeg: restructure sending EOF to filters
> > > 
> > > Timo Rothenpieler (3):
> > >   ffmpeg_cuvid: adapt for recent filter graph initialization changes
> > >   avcodec/cuvid: add format mismatch debug logs
> > >   avcodec/cuvid: update hw_frames_ctx reference after get_format call
> > > 
> > > wm4 (2):
> > >   ffmpeg: make sure packets put into the muxing FIFO are refcounted
> > >   ffmpeg: fix printing of filter input/output names
> > 
> > This patchset breaks
> > ./ffmpeg -i Voting_Machine.wmv test.avi
> > 
> > http://data.onas.ru/fun-clips/Voting_Machine.wmv
> > 
> > didnt bisect which patch causes it
> 
> heres another example:
> 
> ./ffmpeg -i ~/tickets/4329/bogus_video.mp4 -vframes 5  -vf crop=720:404  out.mov
> ./ffplay out.mov
> before this patchset out.mov had an audio stream

sample seems to be here:
http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket4329/

[...]


-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Into a blind darkness they enter who follow after the Ignorance,
they as if into a greater darkness enter who devote themselves
to the Knowledge alone. -- Isha Upanishad
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 181 bytes
Desc: Digital signature
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20170210/11839fd9/attachment.sig>