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avcodec/mpegvideo_enc: Add check for av_packet_new_side_data()

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Add check for av_packet_new_side_data() to avoid null pointer
dereference if allocation fails.

Fixes: bdc1220eeb ("h263enc: Add an option for outputting info about MBs as side data")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@outlook.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Jiasheng Jiang 2024-06-10 14:18:11 +00:00 committed by Anton Khirnov
parent 5d54a25eea
commit 4065ff69a2
1 changed files with 2 additions and 0 deletions
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2
libavcodec/mpegvideo_enc.c
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@ -1825,6 +1825,8 @@ int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
s->mb_info_ptr = av_packet_new_side_data(pkt,
AV_PKT_DATA_H263_MB_INFO,
s->mb_width*s->mb_height*12);
if (!s->mb_info_ptr)
return AVERROR(ENOMEM);
s->prev_mb_info = s->last_mb_info = s->mb_info_size = 0;
}