ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Thu Aug 18 22:26:38 2022 +0200| [d93dccdc9f6fa41dc5ef743bc195c4fc052a34b4] | committer: Michael Niedermayer
avcodec/bethsoftvideo: Check block_type before frame alloc Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d93dccdc9f6fa41dc5ef743bc195c4fc052a34b4 --- libavcodec/bethsoftvideo.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/libavcodec/bethsoftvideo.c b/libavcodec/bethsoftvideo.c index 9fbfc3db4f..4562053829 100644 --- a/libavcodec/bethsoftvideo.c +++ b/libavcodec/bethsoftvideo.c @@ -79,6 +79,11 @@ static int bethsoftvid_decode_frame(AVCodecContext *avctx, AVFrame *rframe, int code, ret; int yoffset; + bytestream2_init(&vid->g, avpkt->data, avpkt->size); + block_type = bytestream2_get_byte(&vid->g); + if (block_type < 1 || block_type > 4) + return AVERROR_INVALIDDATA; + if ((ret = ff_reget_buffer(avctx, vid->frame, 0)) < 0) return ret; wrap_to_next_line = vid->frame->linesize[0] - avctx->width; @@ -92,11 +97,10 @@ static int bethsoftvid_decode_frame(AVCodecContext *avctx, AVFrame *rframe, return ret; } - bytestream2_init(&vid->g, avpkt->data, avpkt->size); dst = vid->frame->data[0]; frame_end = vid->frame->data[0] + vid->frame->linesize[0] * avctx->height; - switch(block_type = bytestream2_get_byte(&vid->g)){ + switch(block_type){ case PALETTE_BLOCK: { *got_frame = 0; if ((ret = set_palette(vid, &vid->g)) < 0) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
