diff options
| -rw-r--r-- | libavcodec/webp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libavcodec/webp.c b/libavcodec/webp.c index 19cb1fc223..c737f5492d 100644 --- a/libavcodec/webp.c +++ b/libavcodec/webp.c @@ -482,7 +482,9 @@ static int decode_entropy_image(WebPContext *s) max = 0; for (y = 0; y < img->frame->height; y++) { for (x = 0; x < img->frame->width; x++) { - int p = GET_PIXEL_COMP(img->frame, x, y, 2); + int p0 = GET_PIXEL_COMP(img->frame, x, y, 1); + int p1 = GET_PIXEL_COMP(img->frame, x, y, 2); + int p = p0 << 8 | p1; max = FFMAX(max, p); } } @@ -567,7 +569,9 @@ static HuffReader *get_huffman_group(WebPContext *s, ImageContext *img, if (gimg->size_reduction > 0) { int group_x = x >> gimg->size_reduction; int group_y = y >> gimg->size_reduction; - group = GET_PIXEL_COMP(gimg->frame, group_x, group_y, 2); + int g0 = GET_PIXEL_COMP(gimg->frame, group_x, group_y, 1); + int g1 = GET_PIXEL_COMP(gimg->frame, group_x, group_y, 2); + group = g0 << 8 | g1; } return &img->huffman_groups[group * HUFFMAN_CODES_PER_META_CODE]; |