Implement avfilter_get_video_buffer_ref_from_arrays().

Originally committed as revision 25827 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 40 insertions, 0 deletions

diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index a761c81cfc..6146a3a06a 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -267,6 +267,46 @@ AVFilterBufferRef *avfilter_get_video_buffer(AVFilterLink *link, int perms, int
     return ret;
 }
 
+AVFilterBufferRef *
+avfilter_get_video_buffer_ref_from_arrays(uint8_t *data[4], int linesize[4], int perms,
+                                          int w, int h, enum PixelFormat format)
+{
+    AVFilterBuffer *pic = av_mallocz(sizeof(AVFilterBuffer));
+    AVFilterBufferRef *picref = av_mallocz(sizeof(AVFilterBufferRef));
+
+    if (!pic || !picref)
+        goto fail;
+
+    picref->buf = pic;
+    picref->buf->free = ff_avfilter_default_free_buffer;
+    if (!(picref->video = av_mallocz(sizeof(AVFilterBufferRefVideoProps))))
+        goto fail;
+
+    picref->video->w = w;
+    picref->video->h = h;
+
+    /* make sure the buffer gets read permission or it's useless for output */
+    picref->perms = perms | AV_PERM_READ;
+
+    pic->refcount = 1;
+    picref->type = AVMEDIA_TYPE_VIDEO;
+    picref->format = format;
+
+    memcpy(pic->data,        data,          sizeof(pic->data));
+    memcpy(pic->linesize,    linesize,      sizeof(pic->linesize));
+    memcpy(picref->data,     pic->data,     sizeof(picref->data));
+    memcpy(picref->linesize, pic->linesize, sizeof(picref->linesize));
+
+    return picref;
+
+fail:
+    if (picref && picref->video)
+        av_free(picref->video);
+    av_free(picref);
+    av_free(pic);
+    return NULL;
+}
+
 AVFilterBufferRef *avfilter_get_audio_buffer(AVFilterLink *link, int perms,
                                              enum AVSampleFormat sample_fmt, int size,
                                              int64_t channel_layout, int planar)