[FFmpeg-devel] [PATCH] make pcm_dvd use the full bit depth
Wed Aug 13 00:13:28 CEST 2008
> Lars T?uber wrote:
> > this fixes my last patch
> > the sound should be alright again
> > can't test again tonight but will do tomorrow
> > [...]
> > @@ -489,7 +505,7 @@
> > /* Note: Do not forget to add new entries to the Makefile as well.
> > */
> > PCM_CODEC (CODEC_ID_PCM_ALAW, SAMPLE_FMT_S16, pcm_alaw, "A-law
> > PCM");
> > -PCM_CODEC (CODEC_ID_PCM_DVD, SAMPLE_FMT_S16, pcm_dvd, "signed
> > 16|20|24-bit big-endian PCM");
> > +PCM_CODEC (CODEC_ID_PCM_DVD, SAMPLE_FMT_S32, pcm_dvd, "signed
> > 20|24-bit big-endian PCM");
> I guess it should be SAMPLE_FMT_S24.
> But I'm not sure if a final decision was made about internal storage
> format of SAMPLE_FMT_S24. I think Michael wanted it to be the same as
> SAMPLE_FMT_S32, so this would require no more change to your code.
As reference, here are the 24 bit format used by OSSv4:
http://manuals.opensound.com/developer/AFMT_S24_PACKED.html ... :)
Seems they use padded 32 bit actually.
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