Re: [FFmpeg-devel] [PATCH 3/3] WIP: lavf/utils: try to avoid decoding a frame to get the codec parameters

2015-10-29 Thread wm4
On Thu, 29 Oct 2015 08:34:42 +0100 Clément Bœsch wrote: > On Wed, Oct 28, 2015 at 06:34:06PM +0100, Hendrik Leppkes wrote: > > On Sat, Oct 17, 2015 at 10:34 PM, Matthieu Bouron > > wrote: > > > From: Matthieu Bouron > > > > > > Avoid decoding twice images such as jpeg and png, once in the > >

Re: [FFmpeg-devel] [PATCH 3/3] WIP: lavf/utils: try to avoid decoding a frame to get the codec parameters

2015-10-29 Thread Hendrik Leppkes
On Thu, Oct 29, 2015 at 8:34 AM, Clément Bœsch wrote: > On Wed, Oct 28, 2015 at 06:34:06PM +0100, Hendrik Leppkes wrote: >> On Sat, Oct 17, 2015 at 10:34 PM, Matthieu Bouron >> wrote: >> > From: Matthieu Bouron >> > >> > Avoid decoding twice images such as jpeg and png, once in the >> > avformat

Re: [FFmpeg-devel] [PATCH 3/3] WIP: lavf/utils: try to avoid decoding a frame to get the codec parameters

2015-10-29 Thread Clément Bœsch
On Thu, Oct 29, 2015 at 08:34:42AM +0100, Clément Bœsch wrote: > On Wed, Oct 28, 2015 at 06:34:06PM +0100, Hendrik Leppkes wrote: > > On Sat, Oct 17, 2015 at 10:34 PM, Matthieu Bouron > > wrote: > > > From: Matthieu Bouron > > > > > > Avoid decoding twice images such as jpeg and png, once in the

Re: [FFmpeg-devel] [PATCH 3/3] WIP: lavf/utils: try to avoid decoding a frame to get the codec parameters

2015-10-29 Thread Clément Bœsch
On Wed, Oct 28, 2015 at 06:34:06PM +0100, Hendrik Leppkes wrote: > On Sat, Oct 17, 2015 at 10:34 PM, Matthieu Bouron > wrote: > > From: Matthieu Bouron > > > > Avoid decoding twice images such as jpeg and png, once in the > > avformat_find_stream_info and once when the actual decode is made. > >

Re: [FFmpeg-devel] [PATCH 3/3] WIP: lavf/utils: try to avoid decoding a frame to get the codec parameters

2015-10-28 Thread wm4
On Wed, 28 Oct 2015 13:30:59 -0400 "Ronald S. Bultje" wrote: > Hi, > > On Sat, Oct 17, 2015 at 4:34 PM, Matthieu Bouron > wrote: > > > From: Matthieu Bouron > > > > Avoid decoding twice images such as jpeg and png, once in the > > avformat_find_stream_info and once when the actual decode is m

Re: [FFmpeg-devel] [PATCH 3/3] WIP: lavf/utils: try to avoid decoding a frame to get the codec parameters

2015-10-28 Thread Hendrik Leppkes
On Sat, Oct 17, 2015 at 10:34 PM, Matthieu Bouron wrote: > From: Matthieu Bouron > > Avoid decoding twice images such as jpeg and png, once in the > avformat_find_stream_info and once when the actual decode is made. > > The decoder must honor the skip_frame option in order to skip > decoding. For

Re: [FFmpeg-devel] [PATCH 3/3] WIP: lavf/utils: try to avoid decoding a frame to get the codec parameters

2015-10-28 Thread Ronald S. Bultje
Hi, On Sat, Oct 17, 2015 at 4:34 PM, Matthieu Bouron wrote: > From: Matthieu Bouron > > Avoid decoding twice images such as jpeg and png, once in the > avformat_find_stream_info and once when the actual decode is made. > > The decoder must honor the skip_frame option in order to skip > decoding

Re: [FFmpeg-devel] [PATCH 3/3] WIP: lavf/utils: try to avoid decoding a frame to get the codec parameters

2015-10-28 Thread Michael Niedermayer
On Sat, Oct 17, 2015 at 10:34:24PM +0200, Matthieu Bouron wrote: > From: Matthieu Bouron > > Avoid decoding twice images such as jpeg and png, once in the > avformat_find_stream_info and once when the actual decode is made. > > The decoder must honor the skip_frame option in order to skip > deco

[FFmpeg-devel] [PATCH 3/3] WIP: lavf/utils: try to avoid decoding a frame to get the codec parameters

2015-10-17 Thread Matthieu Bouron
From: Matthieu Bouron Avoid decoding twice images such as jpeg and png, once in the avformat_find_stream_info and once when the actual decode is made. The decoder must honor the skip_frame option in order to skip decoding. For now the AVDISCARD_ALL flag is only set for the mjpeg and png decoders