[FFmpeg-cvslog] jpegdec: actually search for and parse RSTn

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Thu Jun  9 03:35:50 2011 +0200| [7b8ed831eb8432d202dad16dedc1758b018bb1fa] | committer: Michael Niedermayer

jpegdec: actually search for and parse RSTn

Fixes Ticket267

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7b8ed831eb8432d202dad16dedc1758b018bb1fa
---

 libavcodec/mjpegdec.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index afcc1b7..4e58fef 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -881,9 +881,12 @@ static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah, i
                 }
             }
 
-            if (s->restart_interval && !--s->restart_count) {
+            if (s->restart_interval && show_bits(&s->gb, 8) == 0xFF){/* skip RSTn */
+                --s->restart_count;
                 align_get_bits(&s->gb);
-                skip_bits(&s->gb, 16); /* skip RSTn */
+                while(show_bits(&s->gb, 8) == 0xFF)
+                    skip_bits(&s->gb, 8);
+                skip_bits(&s->gb, 8);
                 for (i=0; i<nb_components; i++) /* reset dc */
                     s->last_dc[i] = 1024;
             }