[FFmpeg-cvslog] utils: check that parameters havnt changed in reget_buffer()

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Jan 11 23:52:55 2012 +0100| [44e191457a1268a8112ec7b35cf18de2957123b3] | committer: Michael Niedermayer

utils: check that parameters havnt changed in reget_buffer()

Fixes Ticket902

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=44e191457a1268a8112ec7b35cf18de2957123b3
---

 libavcodec/utils.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 78bc6e7..91c5e43 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -557,6 +557,11 @@ int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
 
     assert(s->codec_type == AVMEDIA_TYPE_VIDEO);
 
+    if (pic->data[0] && (pic->width != s->width || pic->height != s->height || pic->format != s->pix_fmt)) {
+        av_log(s, AV_LOG_WARNING, "Width/height/fmt changing with reget buffer");
+        s->release_buffer(s, pic);
+    }
+
     /* If no picture return a new buffer */
     if(pic->data[0] == NULL) {
         /* We will copy from buffer, so must be readable */