[FFmpeg-devel] [PATCH 3/3] lavfi: EBU R.128 advance pointer to samples

Clément Bœsch ubitux at gmail.com
Fri Feb 15 16:40:47 CET 2013


On Fri, Feb 15, 2013 at 03:13:08PM +0000, Kieran Kunhya wrote:
> On Sat, Jan 19, 2013 at 12:36 AM, Clément Bœsch <ubitux at gmail.com> wrote:
> > On Fri, Jan 18, 2013 at 05:14:01AM +0000, sedacca at comcast.net wrote:
> >> Correct the advancement of a pointer to skip over LFE samples as
> >> intended in the loudness computation.
> >>
> >> This suggested patch is 3 of 3 for Ticket #2144 "libavfilter ebur128
> >> loudness inaccuracy, irregular time interval, LFE interference".
> >> This suggested patch supersedes the contribution of January 15, 2013
> >> in the thread “[PATCH] lavfi: EBU R.128 irreg time, ch weights, skip
> >> LFE” which combined multiple fixes in one batch.
> >>
> >> ---
> >>  libavfilter/f_ebur128.c |    4 ++--
> >>  1 file changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/libavfilter/f_ebur128.c b/libavfilter/f_ebur128.c
> >> index 3e0cabc..dedaa5d 100644
> >> --- a/libavfilter/f_ebur128.c
> >> +++ b/libavfilter/f_ebur128.c
> >> @@ -470,6 +470,8 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
> >>          for (ch = 0; ch < nb_channels; ch++) {
> >>              double bin;
> >>
> >> +            ebur128->x[ch * 3] = *samples++; // set X[i]
> >> +
> >>              if (!ebur128->ch_weighting[ch])
> >>                  continue;
> >>
> >> @@ -483,8 +485,6 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
> >>                                        - dst[1]*name##_A1 - dst[2]*name##_A2;    \
> >>  } while (0)
> >>
> >> -            ebur128->x[ch * 3] = *samples++; // set X[i]
> >> -
> >>              // TODO: merge both filters in one?
> >>              FILTER(y, x, PRE);  // apply pre-filter
> >>              ebur128->x[ch * 3 + 2] = ebur128->x[ch * 3 + 1];
> >
> > Ah, looks better, thanks. LGTM.
> >
> > --
> > Clément B.
> >
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >
> 
> Can somebody commit this?

Sorry, I'm still catching up with upstream. Applied, sorry for the delay.

-- 
Clément B.
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