[FFmpeg-cvslog] JPEG-LS: clip offset based on cur_scan to valid range.
Reimar Döffinger
git at videolan.org
Sat Aug 27 22:13:16 CEST 2011
ffmpeg | branch: master | Reimar Döffinger <Reimar.Doeffinger at gmx.de> | Sat Aug 27 21:28:38 2011 +0200| [2cd7a9ebe0e177b1f318ed4b0fa4240801fc9383] | committer: Reimar Döffinger
JPEG-LS: clip offset based on cur_scan to valid range.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger at gmx.de>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2cd7a9ebe0e177b1f318ed4b0fa4240801fc9383
---
libavcodec/jpeglsdec.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c
index 8ea2cb5..5e98b64 100644
--- a/libavcodec/jpeglsdec.c
+++ b/libavcodec/jpeglsdec.c
@@ -286,8 +286,8 @@ int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near, int point_transfor
// av_log(s->avctx, AV_LOG_DEBUG, "JPEG-LS params: %ix%i NEAR=%i MV=%i T(%i,%i,%i) RESET=%i, LIMIT=%i, qbpp=%i, RANGE=%i\n",s->width,s->height,state->near,state->maxval,state->T1,state->T2,state->T3,state->reset,state->limit,state->qbpp, state->range);
// av_log(s->avctx, AV_LOG_DEBUG, "JPEG params: ILV=%i Pt=%i BPP=%i, scan = %i\n", ilv, point_transform, s->bits, s->cur_scan);
if(ilv == 0) { /* separate planes */
- off = s->cur_scan - 1;
stride = (s->nb_components > 1) ? 3 : 1;
+ off = av_clip(s->cur_scan - 1, 0, stride);
width = s->width * stride;
cur += off;
for(i = 0; i < s->height; i++) {
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