On Thu, Jul 07, 2011 at 12:34:47AM +0100, Måns Rullgård wrote:
> Diego Biurrun <[email protected]> writes:
> 
> > libavcodec/libgsm.c:148: warning: passing argument 2 of ‘gsm_decode’ 
> > discards qualifiers from pointer target type
> > /usr/include/gsm/gsm.h:68: note: expected ‘gsm_byte *’ but argument is of 
> > type ‘const uint8_t *’
> >
> > --- a/libavcodec/libgsm.c
> > +++ b/libavcodec/libgsm.c
> > @@ -139,7 +139,7 @@ AVCodec ff_libgsm_ms_encoder = {
> >  static int libgsm_decode_frame(AVCodecContext *avctx,
> >                                 void *data, int *data_size,
> >                                 AVPacket *avpkt) {
> > -    const uint8_t *buf = avpkt->data;
> > +    uint8_t *buf = avpkt->data;
> >      int buf_size = avpkt->size;
> >      *data_size = 0; /* In case of error */
> >      if(buf_size < avctx->block_align) return -1;
> > -- 
> 
> Maybe something should rather have a const added instead.

gsm_decode() is external API that we have no control over.

Diego
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