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authorAnton Khirnov <anton@khirnov.net>2012-04-27 17:27:40 +0200
committerAnton Khirnov <anton@khirnov.net>2012-05-09 08:49:36 +0200
commitab165047a6142ca0c8c333c36f4ebb96477622d7 (patch)
tree4c402cc651c64b9574619f0ce9df3be59c00da01
parent5699884c2e2b76c43df405b8613e40a953338738 (diff)
lavfi: add a function for copying properties from AVFilterBufferRef->AVFrame
Based on a commit by Stefano Sabatini <stefano.sabatini-lala@poste.it>
-rw-r--r--libavfilter/avfilter.c30
-rw-r--r--libavfilter/avfilter.h8
2 files changed, 38 insertions, 0 deletions
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index d1c82cee2f..f12ca3a097 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -708,6 +708,36 @@ int avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src)
return 0;
}
+int avfilter_copy_buf_props(AVFrame *dst, const AVFilterBufferRef *src)
+{
+ memcpy(dst->data, src->data, sizeof(dst->data));
+ memcpy(dst->linesize, src->linesize, sizeof(dst->linesize));
+
+ dst->pts = src->pts;
+ dst->format = src->format;
+
+ switch (src->type) {
+ case AVMEDIA_TYPE_VIDEO:
+ dst->width = src->video->w;
+ dst->height = src->video->h;
+ dst->sample_aspect_ratio = src->video->pixel_aspect;
+ dst->interlaced_frame = src->video->interlaced;
+ dst->top_field_first = src->video->top_field_first;
+ dst->key_frame = src->video->key_frame;
+ dst->pict_type = src->video->pict_type;
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ dst->sample_rate = src->audio->sample_rate;
+ dst->channel_layout = src->audio->channel_layout;
+ dst->nb_samples = src->audio->nb_samples;
+ break;
+ default:
+ return AVERROR(EINVAL);
+ }
+
+ return 0;
+}
+
void avfilter_copy_buffer_ref_props(AVFilterBufferRef *dst, AVFilterBufferRef *src)
{
// copy common properties
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index c2049f98fe..ef61a5da6a 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -848,4 +848,12 @@ static inline void avfilter_insert_outpad(AVFilterContext *f, unsigned index,
*/
int avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src);
+/**
+ * Copy the frame properties and data pointers of src to dst, without copying
+ * the actual data.
+ *
+ * @return 0 on success, a negative number on error.
+ */
+int avfilter_copy_buf_props(AVFrame *dst, const AVFilterBufferRef *src);
+
#endif /* AVFILTER_AVFILTER_H */