Re: [FFmpeg-devel] [PATCH] lavc/mjpegdec: hint next marker position in ff_mjpeg_find_marker

2017-01-29 Thread Matthieu Bouron
On Sat, Jan 28, 2017 at 10:40:18PM +0100, Michael Niedermayer wrote: > On Sat, Jan 28, 2017 at 01:59:10PM +0100, Matthieu Bouron wrote: > > On Sat, Jan 28, 2017 at 12:59:39PM +0100, Matthieu Bouron wrote: > > > On Sat, Jan 28, 2017 at 02:25:34AM +0100, Michael Niedermayer wrote: > > > > On Fri, Jan

Re: [FFmpeg-devel] [PATCH] lavc/mjpegdec: hint next marker position in ff_mjpeg_find_marker

2017-01-28 Thread Michael Niedermayer
On Sat, Jan 28, 2017 at 01:59:10PM +0100, Matthieu Bouron wrote: > On Sat, Jan 28, 2017 at 12:59:39PM +0100, Matthieu Bouron wrote: > > On Sat, Jan 28, 2017 at 02:25:34AM +0100, Michael Niedermayer wrote: > > > On Fri, Jan 27, 2017 at 09:47:18AM +0100, Matthieu Bouron wrote: > > > > On Fri, Jan 27,

Re: [FFmpeg-devel] [PATCH] lavc/mjpegdec: hint next marker position in ff_mjpeg_find_marker

2017-01-28 Thread Matthieu Bouron
On Sat, Jan 28, 2017 at 12:59:39PM +0100, Matthieu Bouron wrote: > On Sat, Jan 28, 2017 at 02:25:34AM +0100, Michael Niedermayer wrote: > > On Fri, Jan 27, 2017 at 09:47:18AM +0100, Matthieu Bouron wrote: > > > On Fri, Jan 27, 2017 at 02:30:40AM +0100, Michael Niedermayer wrote: > > > > On Thu, Jan

Re: [FFmpeg-devel] [PATCH] lavc/mjpegdec: hint next marker position in ff_mjpeg_find_marker

2017-01-28 Thread Matthieu Bouron
On Sat, Jan 28, 2017 at 02:25:34AM +0100, Michael Niedermayer wrote: > On Fri, Jan 27, 2017 at 09:47:18AM +0100, Matthieu Bouron wrote: > > On Fri, Jan 27, 2017 at 02:30:40AM +0100, Michael Niedermayer wrote: > > > On Thu, Jan 26, 2017 at 05:47:51PM +0100, Matthieu Bouron wrote: > > > > Speeds up n

Re: [FFmpeg-devel] [PATCH] lavc/mjpegdec: hint next marker position in ff_mjpeg_find_marker

2017-01-27 Thread Michael Niedermayer
On Fri, Jan 27, 2017 at 09:47:18AM +0100, Matthieu Bouron wrote: > On Fri, Jan 27, 2017 at 02:30:40AM +0100, Michael Niedermayer wrote: > > On Thu, Jan 26, 2017 at 05:47:51PM +0100, Matthieu Bouron wrote: > > > Speeds up next marker search when a SOS marker is found. > > > > > > ff_mjpeg_find_mark

Re: [FFmpeg-devel] [PATCH] lavc/mjpegdec: hint next marker position in ff_mjpeg_find_marker

2017-01-27 Thread Matthieu Bouron
On Fri, Jan 27, 2017 at 02:30:40AM +0100, Michael Niedermayer wrote: > On Thu, Jan 26, 2017 at 05:47:51PM +0100, Matthieu Bouron wrote: > > Speeds up next marker search when a SOS marker is found. > > > > ff_mjpeg_find_marker goes from 54% to 30% under perf record ffmpeg -i > > sample_2992x4000.jp

Re: [FFmpeg-devel] [PATCH] lavc/mjpegdec: hint next marker position in ff_mjpeg_find_marker

2017-01-26 Thread Michael Niedermayer
On Thu, Jan 26, 2017 at 05:47:51PM +0100, Matthieu Bouron wrote: > Speeds up next marker search when a SOS marker is found. > > ff_mjpeg_find_marker goes from 54% to 30% under perf record ffmpeg -i > sample_2992x4000.jpg > --- > libavcodec/mjpegdec.c | 31 +-- > libavc

[FFmpeg-devel] [PATCH] lavc/mjpegdec: hint next marker position in ff_mjpeg_find_marker

2017-01-26 Thread Matthieu Bouron
Speeds up next marker search when a SOS marker is found. ff_mjpeg_find_marker goes from 54% to 30% under perf record ffmpeg -i sample_2992x4000.jpg --- libavcodec/mjpegdec.c | 31 +-- libavcodec/mjpegdec.h | 2 +- libavcodec/mxpegdec.c | 5 +++-- 3 files changed, 29