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| author | Jacob Graff <jacob@giphy.com> | 2019-05-09 16:45:56 -0400 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2019-05-11 16:42:13 +0200 |
| commit | 0158dd14a35ff88c4837d4b463e1f393040884c9 (patch) | |
| tree | b937ebaf150f1f77ec2cf2191428f89d64065e2c /libavcodec | |
| parent | 68bac50604a52760ccb9d9dd43f100436fd66b71 (diff) | |
| download | ffmpeg-0158dd14a35ff88c4837d4b463e1f393040884c9.tar.gz | |
avcodec/gif: fix issues with transparent crop
Resolves issues with some transparent gifs.
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/gif.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/libavcodec/gif.c b/libavcodec/gif.c index 9f2f30d863..8c3bfdcc46 100644 --- a/libavcodec/gif.c +++ b/libavcodec/gif.c @@ -136,7 +136,7 @@ static void gif_crop_translucent(AVCodecContext *avctx, while (*y_start < y_end) { int is_trans = 1; for (int i = 0; i < w; i++) { - if (buf[w * *y_start + i] != trans) { + if (buf[linesize * *y_start + i] != trans) { is_trans = 0; break; } @@ -148,10 +148,10 @@ static void gif_crop_translucent(AVCodecContext *avctx, } // crop bottom - while (y_end < h) { + while (y_end > *y_start) { int is_trans = 1; for (int i = 0; i < w; i++) { - if (buf[w * y_end + i] != trans) { + if (buf[linesize * y_end + i] != trans) { is_trans = 0; break; } @@ -165,7 +165,7 @@ static void gif_crop_translucent(AVCodecContext *avctx, while (*x_start < x_end) { int is_trans = 1; for (int i = *y_start; i < y_end; i++) { - if (buf[w * i + *x_start] != trans) { + if (buf[linesize * i + *x_start] != trans) { is_trans = 0; break; } @@ -176,10 +176,10 @@ static void gif_crop_translucent(AVCodecContext *avctx, } // crop right - while (x_end < w) { + while (x_end > *x_start) { int is_trans = 1; for (int i = *y_start; i < y_end; i++) { - if (buf[w * i + x_end] != trans) { + if (buf[linesize * i + x_end] != trans) { is_trans = 0; break; } |