[FFmpeg-devel] [PATCH] showwaves: fix PTS computation.

Nicolas George nicolas.george at normalesup.org
Sat Jun 23 12:03:49 CEST 2012


Signed-off-by: Nicolas George <nicolas.george at normalesup.org>
---
 libavfilter/avf_showwaves.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavfilter/avf_showwaves.c b/libavfilter/avf_showwaves.c
index 90d3ec9..121f785 100644
--- a/libavfilter/avf_showwaves.c
+++ b/libavfilter/avf_showwaves.c
@@ -202,7 +202,10 @@ static void filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamples)
                                     outlink->w, outlink->h);
             outpicref->video->w = outlink->w;
             outpicref->video->h = outlink->h;
-            outpicref->pts = insamples->pts;
+            outpicref->pts = insamples->pts +
+                             av_rescale_q((p - (int16_t *)insamples->data[0]) / nb_channels,
+                                          (AVRational){ 1, inlink->sample_rate },
+                                          outlink->time_base);
             outlink->out_buf = outpicref;
             linesize = outpicref->linesize[0];
             memset(outpicref->data[0], 0, showwaves->h*linesize);
-- 
1.7.10



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