[FFmpeg-cvslog] avcodec/gif: fix issues with transparent crop
Jacob Graff
git at videolan.org
Sat May 11 17:54:04 EEST 2019
ffmpeg | branch: master | Jacob Graff <jacob at giphy.com> | Thu May 9 16:45:56 2019 -0400| [0158dd14a35ff88c4837d4b463e1f393040884c9] | committer: Paul B Mahol
avcodec/gif: fix issues with transparent crop
Resolves issues with some transparent gifs.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0158dd14a35ff88c4837d4b463e1f393040884c9
---
libavcodec/gif.c | 12 ++++++------
1 file 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;
}
More information about the ffmpeg-cvslog
mailing list