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avcodec/vble: Allocate buffer later

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Fixes: Timeout
Fixes: 71727/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VBLE_fuzzer-6126342574243840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-09-22 23:05:28 +02:00
parent 5f471b500c
commit 03050a0d90
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GPG Key ID: B18E8928B3948D64
1 changed files with 4 additions and 4 deletions
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8
libavcodec/vble.c
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@ -130,10 +130,6 @@ static int vble_decode_frame(AVCodecContext *avctx, AVFrame *pic,
return AVERROR_INVALIDDATA;
}
/* Allocate buffer */
if ((ret = ff_thread_get_buffer(avctx, pic, 0)) < 0)
return ret;
/* Version should always be 1 */
version = AV_RL32(src);
@ -148,6 +144,10 @@ static int vble_decode_frame(AVCodecContext *avctx, AVFrame *pic,
return AVERROR_INVALIDDATA;
}
/* Allocate buffer */
if ((ret = ff_thread_get_buffer(avctx, pic, 0)) < 0)
return ret;
/* Restore planes. Should be almost identical to Huffyuv's. */
vble_restore_plane(ctx, pic, &gb, 0, offset, avctx->width, avctx->height);