[FFmpeg-devel] [PATCH v2] avcodec/v410dec: add support for frame and slice threading

[Michael Niedermayer]

On Mon, Nov 25, 2019 at 11:40:04AM +0800, lance.lmwang at gmail.com wrote:
> From: Limin Wang <lance.lmwang at gmail.com>
> 
> 1, Test server configure:
> [root at localhost ~]# cat /proc/cpuinfo  |grep "model name"
> model name	: Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz
> model name	: Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz
> ...
> 
> [root at localhost ~]# free -h
>               total        used        free      shared  buff/cache   available
>               Mem:           102G        1.1G        100G         16M        657M        100G
>               Swap:          4.0G          0B        4.0G
> 
> 2, Test result:
> encode the v410 input data for testing:
>  ./ffmpeg -y -i 4k_422.ts  -c:v v410 -vframes 10 test.avi
> 
> master:
> ./ffmpeg -y -stream_loop 1000 -i ./test.avi -benchmark -f null -
> frame=10010 fps= 37 q=-0.0 Lsize=N/A time=00:38:26.30 bitrate=N/A speed= 8.6x
> video:5240kB audio:432432kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
> bench: utime=166.016s stime=102.192s rtime=268.120s
> bench: maxrss=273400kB
> 
> patch applied:
> ./ffmpeg -y -threads 2 -thread_type slice -stream_loop 1000 -i ./test.avi -benchmark -f null -
> frame=10010 fps= 53 q=-0.0 Lsize=N/A time=00:38:26.30 bitrate=N/A speed=12.3x
> video:5240kB audio:432432kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
> bench: utime=165.135s stime=100.456s rtime=187.994s
> bench: maxrss=275476kB
> 
> ./ffmpeg -y -threads 2 -thread_type frame -stream_loop 1000 -i ./test.avi -benchmark -f null -
> frame=10010 fps= 61 q=-0.0 Lsize=N/A time=00:38:26.30 bitrate=N/A speed=14.1x
> video:5240kB audio:432432kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
> bench: utime=171.386s stime=122.102s rtime=163.637s
> bench: maxrss=340308kB
> 
> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> ---
>  libavcodec/v410dec.c | 72 +++++++++++++++++++++++++++++++++++++---------------
>  1 file changed, 51 insertions(+), 21 deletions(-)

will apply

thx

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

Elect your leaders based on what they did after the last election, not
based on what they say before an election.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 181 bytes
Desc: not available
URL: <https://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20191125/23325660/attachment.sig>