[FFmpeg-devel] [PATCH 1/3] adpcm_dtk: Decode interleaved channels in parallel

Michael Niedermayer michaelni at gmx.at
Sat May 18 21:36:30 CEST 2013

On Sat, May 18, 2013 at 02:16:58PM -0300, James Almer wrote:
> On 18/05/13 1:42 PM, Michael Niedermayer wrote:
> > On Sun, May 12, 2013 at 07:47:14PM -0300, James Almer wrote:
> >> Signed-off-by: James Almer <jamrial at gmail.com>
> >> ---
> >>  libavcodec/adpcm.c | 55 +++++++++++++++++++++++++++---------------------------
> >>  1 file changed, 27 insertions(+), 28 deletions(-)
> > 
> > does this fix a bug, does it improve speed or what is the purpose
> > of this patch (the commit message doesnt say and it should say)
> It should improve speed since it processes both channels in a single pass, 
> instead of jumping back to the beginning of the frame after processing the
> first channel.

If its intended to improve speed then you should include a mention
of the actual achived speedup in the commit message as well.
You need to benchmark anyway so you yourself know if your changes
improve things ...

> I can resubmit it with a relevant commit message if you want.

please do

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

In a rich man's house there is no place to spit but his face.
-- Diogenes of Sinope
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