[FFmpeg-devel] [PATCH] Move sample format definitions from libavcodec to libavcore.

Stefano Sabatini stefano.sabatini-lala
Sat Oct 30 01:08:32 CEST 2010


On date Friday 2010-10-29 23:06:05 +0200, Michael Niedermayer encoded:
> On Fri, Oct 29, 2010 at 05:16:38PM -0700, Stefano Sabatini wrote:
> > On date Thursday 2010-10-28 20:22:18 +0200, Michael Niedermayer encoded:
> > > On Thu, Oct 28, 2010 at 04:28:18PM -0700, Stefano Sabatini wrote:
> > > > On date Wednesday 2010-10-27 11:22:43 +0200, Michael Niedermayer encoded:
> > > > > On Mon, Oct 25, 2010 at 08:12:43PM -0700, Stefano Sabatini wrote:
> > > > > > On date Monday 2010-10-25 14:53:59 +0200, Michael Niedermayer encoded:
> > > > > > > On Sun, Oct 24, 2010 at 11:38:20PM -0700, Stefano Sabatini wrote:
> > > > > > > > ---
> > > > > > > >  libavcodec/avcodec.h  |   27 +++++++++++++++------------
> > > > > > > >  libavcore/Makefile    |    1 +
> > > > > > > >  libavcore/samplefmt.h |   35 +++++++++++++++++++++++++++++++++++
> > > > > > > >  3 files changed, 51 insertions(+), 12 deletions(-)
> > > > > > > >  create mode 100644 libavcore/samplefmt.h
> > > > > > [...]
> > > > > > > > --- /dev/null
> > > > > > > > +++ b/libavcore/samplefmt.h
> > > > > > > 
> > > > > > > do we really want a header per enum ?
> > > > > > 
> > > > > > No, I'm also planning to move there these functions from
> > > > > > libavcodec/audioconvert.h (with some renamings):
> > > > > > 
> > > > > > void avcodec_sample_fmt_string(char *buf, int buf_size, int sample_fmt);
> > > > > > const char *avcodec_get_sample_fmt_name(int sample_fmt);
> > > > > > enum SampleFormat avcodec_get_sample_fmt(const char* name);
> > > > > > const char *avcodec_get_channel_name(int channel_id);
> > > > > > int64_t avcodec_get_channel_layout(const char *name);
> > > > > > void avcodec_get_channel_layout_string(char *buf, int buf_size, int nb_channels, int64_t channel_layout);
> > > > > > int64_t avcodec_guess_channel_layout(int nb_channels, enum CodecID codec_id, const char *fmt_name);
> > > > > > int avcodec_channel_layout_num_channels(int64_t channel_layout);
> > > > > > 
> > > > > > suggest a better name for the file or place where to move them.
> > > > > 
> > > > > audio.h maybe?
> > > > 
> > > > Not that I care much about the name, but audio.h seems a bit too
> > > > generic while samplefmt.h is more specific and is symmetric to
> > > > pixfmt.h, which is in my opinion a nice feature.
> > > 
> > > the channel stuff has nothing to do with sample formats
> > 
> > OK but please let's try not to waste time bikeshedding on the
> > names. This is my overall plan:
> 
> these are public names and if they make no sense at all it will hurt useability
> similarly having one header per struct and enum is a nightmare for anyone trying
> to use avcore
> 
> if you want samplefmt.h its no problem but if the number of headers

I suppose this counts as a "patch OK".

> grows while there is no logic seperation between them then we need a audio.h
> that includes all and no single user will ever do anything but use audio.h.
> Its just evolution, unfit headers die ;)
> And the easiest to remember is fitter ...

I suppose we can add the audio.h when we'll have more headers to
manage.

I'll apply in few days if I see no opposition.
-- 
FFmpeg = Funny and Faithful Magnificient Prodigious Ermetic Gigant



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