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lavfi/buffersrc: set channel layout if it is known.

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If buffersrc was configured for frames with an unknown layout,
the incoming frames will have channel_layout = 0.
If the format negotiation has selected a known (and compatible)
channel layout for the link, the frame is assumed to have
that layout, the field must be set before injecting the frame
in the filters.
This commit is contained in:
Nicolas George 2013-02-17 15:45:12 +01:00
parent d714576037
commit 01649c79c8
1 changed files with 4 additions and 0 deletions
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4
libavfilter/buffersrc.c
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@ -121,6 +121,8 @@ int av_buffersrc_add_ref(AVFilterContext *s, AVFilterBufferRef *buf, int flags)
CHECK_VIDEO_PARAM_CHANGE(s, c, buf->video->w, buf->video->h, buf->format);
break;
case AVMEDIA_TYPE_AUDIO:
if (!buf->audio->channel_layout)
buf->audio->channel_layout = c->channel_layout;
CHECK_AUDIO_PARAM_CHANGE(s, c, buf->audio->sample_rate, buf->audio->channel_layout,
buf->format);
break;
@ -370,6 +372,8 @@ static int config_props(AVFilterLink *link)
link->sample_aspect_ratio = c->pixel_aspect;
break;
case AVMEDIA_TYPE_AUDIO:
if (!c->channel_layout)
c->channel_layout = link->channel_layout;
break;
default:
return AVERROR(EINVAL);