[FFmpeg-devel] [PATCH]Reset rotation information when using the transpose filter

[Carl Eugen Hoyos]

Hi!

A user report indicates that reencoding rotated QuickTime movies with the 
transpose filter (to fix the rotation) leads to videos that QuickTime shows 
incorrectly rotated.

The patch is completely untested;-(

Please comment, Carl Eugen
-------------- next part --------------
diff --git a/libavfilter/vf_transpose.c b/libavfilter/vf_transpose.c
index dc2ee21..050c109 100644
--- a/libavfilter/vf_transpose.c
+++ b/libavfilter/vf_transpose.c
@@ -32,6 +32,7 @@
 #include "libavutil/pixdesc.h"
 #include "libavutil/imgutils.h"
 #include "libavutil/internal.h"
+#include "libavutil/dict.h"
 #include "avfilter.h"
 #include "formats.h"
 #include "internal.h"
@@ -179,6 +180,8 @@ static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
     if (!outlink->out_buf)
         return AVERROR(ENOMEM);
 
+    av_dict_set(&picref->metadata, "rotate", NULL, 0);
+
     outlink->out_buf->pts = picref->pts;
 
     if (picref->video->sample_aspect_ratio.num == 0) {