ffmpeg | branch: release/2.3 | Pascal Massimino <pascal.massim...@gmail.com> | Tue Sep 16 17:01:07 2014 +0200| [4a4e30a6d87a0c232a789b3f5c0d6520a3e50014] | committer: Michael Niedermayer
libavcodec/webp: treat out-of-bound palette index as translucent black See https://code.google.com/p/webp/issues/detail?id=206 for a description of the problem/fix. Signed-off-by: Michael Niedermayer <michae...@gmx.at> This patch makes the decoder follow the recommendation of the spec. There is some disagreement (see "[FFmpeg-devel] [PATCH]: libavcodec/webp") about what would be best to be written in the spec, so in case the spec is changed again, this potentially would need to be amended or reverted (cherry picked from commit 4fd21d58a72c38ab63c3a4483b420db260fa7b8d) Signed-off-by: Michael Niedermayer <michae...@gmx.at> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4a4e30a6d87a0c232a789b3f5c0d6520a3e50014 --- libavcodec/webp.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/libavcodec/webp.c b/libavcodec/webp.c index c737f54..66c2d57 100644 --- a/libavcodec/webp.c +++ b/libavcodec/webp.c @@ -1028,7 +1028,7 @@ static int apply_color_indexing_transform(WebPContext *s) ImageContext *img; ImageContext *pal; int i, x, y; - uint8_t *p, *pi; + uint8_t *p; img = &s->image[IMAGE_ROLE_ARGB]; pal = &s->image[IMAGE_ROLE_COLOR_INDEXING]; @@ -1066,11 +1066,11 @@ static int apply_color_indexing_transform(WebPContext *s) p = GET_PIXEL(img->frame, x, y); i = p[2]; if (i >= pal->frame->width) { - av_log(s->avctx, AV_LOG_ERROR, "invalid palette index %d\n", i); - return AVERROR_INVALIDDATA; + AV_WB32(p, 0xFF000000); + } else { + const uint8_t *pi = GET_PIXEL(pal->frame, i, 0); + AV_COPY32(p, pi); } - pi = GET_PIXEL(pal->frame, i, 0); - AV_COPY32(p, pi); } } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
