From 8c0fa61a9713a1306fca7997dd04d72ea1f060ea Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 9 Jun 2011 03:35:50 +0200 Subject: [PATCH] jpegdec: actually search for and parse RSTn Fixes decoding of MJPEG files produced by some UVC Logitec web cameras, such as "Notebook Pro" and "HD C910". References: http://trac.videolan.org/vlc/ticket/4215 http://ffmpeg.org/trac/ffmpeg/ticket/267 Signed-off-by: Michael Niedermayer Reviewed-by: Kostya (cherry picked from commit 7b8ed831eb8432d202dad16dedc1758b018bb1fa) --- libavcodec/mjpegdec.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c index b28fdf8549..7eea6d78aa 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -879,9 +879,12 @@ 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; ilast_dc[i] = 1024; }