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webp: do not call av_frame_free() on the user-provided frame 

Fixes double-free on error.
This commit is contained in:
Justin Ruggles 2013-12-04 16:53:17 -05:00
parent b73a8922d8
commit f51e3a1971
1 changed files with 2 additions and 6 deletions
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8
libavcodec/webp.c
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@ -1129,10 +1129,8 @@ static int vp8_lossless_decode_frame(AVCodecContext *avctx, AVFrame *p,
if (is_alpha_chunk)
s->image[IMAGE_ROLE_ARGB].is_alpha_primary = 1;
ret = decode_entropy_coded_image(s, IMAGE_ROLE_ARGB, w, h);
if (ret < 0) {
av_frame_free(&p);
if (ret < 0)
goto free_and_return;
}
/* apply transformations */
for (i = s->nb_transforms - 1; i >= 0; i--) {
@ -1150,10 +1148,8 @@ static int vp8_lossless_decode_frame(AVCodecContext *avctx, AVFrame *p,
ret = apply_color_indexing_transform(s);
break;
}
if (ret < 0) {
av_frame_free(&p);
if (ret < 0)
goto free_and_return;
}
}
*got_frame = 1;