[FFmpeg-cvslog] r17715 - trunk/doc/general.texi

[Diego Biurrun]

On Mon, Mar 02, 2009 at 09:08:19AM +0200, Kostya wrote:
> On Mon, Mar 02, 2009 at 07:04:37AM +0100, Diego Biurrun wrote:
> > On Mon, Mar 02, 2009 at 06:08:58AM +0100, diego wrote:
> > > 
> > > Log:
> > > Decoding of PAM, PBM, PGM, PGMYUV and PPM image formats is not supported.
> > 
> > Hmm, this seems to be wrong, i.e. FFmpeg does support decoding these
> > formats.  However libavcodec/allcodecs.c just lists encoders for them.
> > What am I missing?
> 
> The fact all of those are PNM incarnations that are handled by single decoder.

I figured out as much by now:

#if CONFIG_PAM_ENCODER
AVCodec pam_encoder = {
    "pam",
    CODEC_TYPE_VIDEO,
    CODEC_ID_PAM,
    sizeof(PNMContext),
    common_init,
    pam_encode_frame,
    NULL, //encode_end,
    pnm_decode_frame,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_GRAY8, PIX_FMT_MONOWHITE, PIX_FMT_NONE},
    .long_name= NULL_IF_CONFIG_SMALL("PAM (Portable AnyMap) image"),
};
#endif // CONFIG_PAM_ENCODER

This carries both encoding and decoding functions.  Doesn't this at least
imply that they cannot be disabled separately?

Diego