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nutdec: only copy the header if it exists

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Fixes runtime error: null pointer passed as argument 2, which is
declared to never be null

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Andreas Cadhalpun 2015-12-18 17:24:09 +01:00 committed by Anton Khirnov
parent 8431629dd1
commit 9cdddb93bb
1 changed files with 2 additions and 1 deletions
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libavformat/nutdec.c
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@ -890,7 +890,8 @@ static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code)
ret = av_new_packet(pkt, size + nut->header_len[header_idx]);
if (ret < 0)
return ret;
memcpy(pkt->data, nut->header[header_idx], nut->header_len[header_idx]);
if (nut->header[header_idx])
memcpy(pkt->data, nut->header[header_idx], nut->header_len[header_idx]);
pkt->pos = avio_tell(bc); // FIXME
avio_read(bc, pkt->data + nut->header_len[header_idx], size);