[FFmpeg-devel] [PATCH v2 0/8] Merge lazy filter initialization in ffmpeg CLI
michael at niedermayer.cc
Wed Feb 15 20:57:17 EET 2017
On Wed, Feb 15, 2017 at 03:22:33PM +0100, Michael Niedermayer wrote:
> On Wed, Feb 15, 2017 at 10:24:15AM +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
> > and ffmpeg_cuvid.c, which don'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.
> > I plan to push this tomorrow, except if critical errors are found.
> > 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 (2):
> > ffmpeg_cuvid: adapt for recent filter graph initialization changes
> > 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
> breaks: (Application provided invalid, non monotonically increasing dts to muxer in stream 1: 1824120 >= 70020)
> ./ffmpeg -skip_frame nokey -ss 20 -i ~/tickets/2024/dvbsubtest.ts -qscale 2 -scodec dvbsub -t 6 -an file.ts
heres another issue:
./ffmpeg -i ~/tickets/3015/test_video -filter:a apad -f flv -vcodec flv -ar 22050 -shortest file.flv
the output files looses a audio stream
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
The worst form of inequality is to try to make unequal things equal.
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