[FFmpeg-cvslog] Make avfilter_config_links() propagate audio information of the source link if it is not explicitely set by the filter .

[Stefano Sabatini]

ffmpeg | branch: master | Stefano Sabatini <stefano.sabatini-lala at poste.it> | Sun Feb 13 22:59:55 2011 +0100| [6985d7bf873f4698caf3b54473f9aa89fabbd29a] | committer: Michael Niedermayer

Make avfilter_config_links() propagate audio information of the source link if it is not explicitely set by the filter.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6985d7bf873f4698caf3b54473f9aa89fabbd29a
---

 libavfilter/avfilter.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index 872ca23..4d18329 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -198,6 +198,12 @@ int avfilter_config_links(AVFilterContext *filter)
                 link->sample_aspect_ratio = link->src->input_count ?
                     link->src->inputs[0]->sample_aspect_ratio : (AVRational){1,1};
 
+            if (link->sample_rate == 0 && link->src && link->src->input_count)
+                link->sample_rate = link->src->inputs[0]->sample_rate;
+
+            if (link->channel_layout == 0 && link->src && link->src->input_count)
+                link->channel_layout = link->src->inputs[0]->channel_layout;
+
             if ((config_link = link->dstpad->config_props))
                 if ((ret = config_link(link)) < 0)
                     return ret;