[FFmpeg-devel] [PATCH] Move the video size and rate abbreviations system from libavformat to libavcodec

Michael Niedermayer michaelni
Tue Jun 5 21:15:11 CEST 2007


Hi

On Sun, Jun 03, 2007 at 11:15:06AM +0200, Stefano Sabatini wrote:
> On date Saturday 2007-06-02 22:23:30 +0200, Michael Niedermayer encoded:
> > Hi
> > 
> > On Sat, Jun 02, 2007 at 07:18:56PM +0200, Stefano Sabatini wrote:
> > > On date Saturday 2007-06-02 17:30:22 +0200, Stefano Sabatini encoded:
> > > > Hi to all FFmpeg developers.
> > > > 
> > > > This patch tries to fix some problems with the video size and rate
> > > > abbreviations system of FFmpeg, some of which have been discussed in
> > > > the "List supported video size and rate abbreviations" thread.
> > > > 
> > > > Suggested changelog message:
> > > > "Redesigns the video size and rate abbreviations system" 
> > > > 
> > > > The patch does as follows:
> > > > 
> > > > * moves the size and rate abbreviations system code (AbvEntry struct
> > > >   definition, frame_abvs array, parse_image_size and parse_frame_rate
> > > >   functions) from libavformat/utils.c to libavcodec/utils.c.
> > > > 
> > > > * splits the frame_abvs array into two different video size and rate
> > > >   abbreviations arrays (defined by two distinct struct) in this way:
> > > > 
> > > >   * AbvEntry -> AVVideoSizeAbbr
> > > >              -> AVVideoRateAbbr
> > > >   * frame_abvs -> avcodec_video_rate_abbrs
> > > >                -> avcodec_video_size_abbrs
> > > >   
> > > >   AVVideo{Size,Rate}Abbr are defined in libavcodec/avcodec.h, 
> > > >   avcodec_video_{size,rate}_abbrs are defined in libavcodec/utils.c
> > > >   and exported in libavcodec/avcodec.h.
> > > > 
> > > > * changes the names of the functions parse_image_size and
> > > >   parse_frame_rate in this way:
> > > > 
> > > >   * parse_image_size -> avcodec_parse_video_size
> > > >   * parse_frame_rate -> avcodec_parse_video_rate
> > > >   
> > > >   Every parse_image_size and parse_frame_rate invocation present in
> > > >   the code (namely in ffmpeg.c, ffplay.c and ffserver.c) is changed
> > > >   accordingly.
> > > > 
> > > > * updates the documentation.
> > 
> > so many things in a single patch :(
> > please split it
> 
> OK, let's start with something simpler.
> I'm also renaming the thread.
> 
> The attached patch does as follows:
> 
> * moves the size and rate abbreviations system code (AbvEntry struct
>   definition, frame_abvs array, parse_image_size and parse_frame_rate
>   functions) from libavformat/utils.c to libavcodec/utils.c, where
>   they seem to fit more properly.  
> 
>   parse_image_size and parse_frame_rate are now exported in
>   libavcodec/avcodec.h.
> 
> Suggested changelog message:
> "Moves the video size and rate abbreviations system code from
> libavformat to libavcodec." 

the patch is probably ok (assuming it doesnt change the code and assuming
i didnt miss any possible ABI compatibility issues)
also maybe the minor version of lavc should be increased with the change

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

I have never wished to cater to the crowd; for what I know they do not
approve, and what they approve I do not know. -- Epicurus
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