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lavfi: make copy_buffer_ref common.

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This commit is contained in:
Nicolas George
2012-07-19 11:14:04 +02:00
parent b0629366a2
commit 97f86680eb
3 changed files with 43 additions and 39 deletions
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libavfilter/buffer.c
+39
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@@ -22,10 +22,12 @@
#include "libavutil/audioconvert.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavcodec/avcodec.h"
#include "avfilter.h"
#include "internal.h"
#include "audio.h"
#include "avcodec.h"
void ff_avfilter_default_free_buffer(AVFilterBuffer *ptr)
@@ -175,3 +177,40 @@ void avfilter_copy_buffer_ref_props(AVFilterBufferRef *dst, AVFilterBufferRef *s
default: break;
}
}
AVFilterBufferRef *ff_copy_buffer_ref(AVFilterLink *outlink,
AVFilterBufferRef *ref)
{
AVFilterBufferRef *buf;
int channels;
switch (outlink->type) {
case AVMEDIA_TYPE_VIDEO:
buf = ff_get_video_buffer(outlink, AV_PERM_WRITE,
ref->video->w, ref->video->h);
if(!buf)
return NULL;
av_image_copy(buf->data, buf->linesize,
(void*)ref->data, ref->linesize,
ref->format, ref->video->w, ref->video->h);
break;
case AVMEDIA_TYPE_AUDIO:
buf = ff_get_audio_buffer(outlink, AV_PERM_WRITE,
ref->audio->nb_samples);
if(!buf)
return NULL;
channels = av_get_channel_layout_nb_channels(ref->audio->channel_layout);
av_samples_copy(buf->extended_data, ref->buf->extended_data,
0, 0, ref->audio->nb_samples,
channels,
ref->format);
break;
default:
return NULL;
}
avfilter_copy_buffer_ref_props(buf, ref);
return buf;
}