[FFmpeg-devel] [PATCH][WIP]: multithreaded audio frame encoding

[Michael Niedermayer]

On Mon, Jan 25, 2016 at 06:47:57PM +0100, Paul B Mahol wrote:
> On 1/25/16, Paul B Mahol <onemda at gmail.com> wrote:
> > Hi,
> >
> > nonworking patch atttached.
> >
> 
> Working patch attached.

>  alacenc.c              |    2 +-
>  frame_thread_encoder.c |   14 +++++++++++---
>  frame_thread_encoder.h |    2 +-
>  utils.c                |   14 ++++++++++----
>  wavpackenc.c           |    8 ++++----

is it intended that wavpack encoding differ with threads ?
it seems they are smaller so nothing wrong, just unexpected

./ffmpeg -i ~/videos/matrixbench_mpeg2.mpg  -flags +bitexact -fflags +bitexact -t 30 new.wv
./ffmpeg -i ~/videos/matrixbench_mpeg2.mpg  -flags +bitexact -fflags +bitexact -t 30 -threads 1 -thread_type 0 old.wv
md5sum old.wv new.wv
4979304cc5b1149ebddc2a4c5c94aef7  old.wv
f9a6cd192ace7ec69496096cd3bd1796  new.wv
-rw-r----- 1 michael michael 2177102 Jan 25 19:16 new.wv
-rw-r----- 1 michael michael 2199058 Jan 25 19:17 old.wv

./ffmpeg -i new.wv -f crc -
./ffmpeg -i old.wv -f crc -
CRC=0x30bad4dd
CRC=0x30bad4dd


[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I do not agree with what you have to say, but I'll defend to the death your
right to say it. -- Voltaire
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