On Mon, Aug 04, 2014 at 06:56:01AM +0200, Anton Khirnov wrote:
> 
> On Sun, 3 Aug 2014 14:37:21 +0200, Diego Biurrun <[email protected]> wrote:
> > On Sun, Aug 03, 2014 at 02:35:35PM +0200, Diego Biurrun wrote:
> > > --- a/libavcodec/svq1dec.c
> > > +++ b/libavcodec/svq1dec.c
> > > @@ -60,6 +60,10 @@ typedef struct SVQ1Context {
> > >      AVFrame *prev;
> > > +
> > > +    uint8_t *pkt_swapped;
> > > +    int pkt_swapped_allocated;
> > > +
> > >      int width;
> > > @@ -626,7 +630,24 @@ static int svq1_decode_frame(AVCodecContext *avctx, 
> > > void *data,
> > >  
> > >      /* swap some header bytes (why?) */
> > >      if (s->frame_code != 0x20) {
> > > -        uint32_t *src = (uint32_t *)(buf + 4);
> > > +        uint32_t *src;
> > > +
> > > +        memcpy(s->pkt_swapped, buf, buf_size);
> > > +        buf = s->pkt_swapped;
> > > +        init_get_bits(&s->gb, buf, buf_size * 8);
> > > +        skip_bits(&s->gb, 22);
> > > +
> > > +        src = (uint32_t *)(s->pkt_swapped + 4);
> > >  
> > 
> > I have locally changed pkt_swapped to a union of uint8_t and uint32_t,
> > which eliminates the cast.  Do you agree that is preferable?
> 
> No it's not.
> 
> Just get over your hate of casts already, they are not always inherently bad.
> Using a union just obscures what's going on (and is still the same thing as a
> cast).

I disagree, but whatever.  Push the version you prefer.

Do you really think this is relevant for the stable release branches?

Diego
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