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diracdec: Fix FPE on invalid low_delay data

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This commit is contained in:
Kieran Kunhya
2015-12-09 00:56:02 +00:00
committed by Rostislav Pehlivanov
parent cdf8c9038d
commit 3652dd5d0c
1 changed files with 5 additions and 0 deletions
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5
libavcodec/diracdec.c
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@@ -2002,6 +2002,11 @@ static int dirac_decode_data_unit(AVCodecContext *avctx, const uint8_t *buf, int
if (s->version.minor == 2 && parse_code == 0x88) if (s->version.minor == 2 && parse_code == 0x88)
s->ld_picture = 1; s->ld_picture = 1;
if (s->low_delay && !(s->ld_picture || s->hq_picture) ) {
av_log(avctx, AV_LOG_ERROR, "Invalid low delay flag\n");
return AVERROR_INVALIDDATA;
}
if ((ret = get_buffer_with_edge(avctx, pic->avframe, (parse_code & 0x0C) == 0x0C ? AV_GET_BUFFER_FLAG_REF : 0)) < 0) if ((ret = get_buffer_with_edge(avctx, pic->avframe, (parse_code & 0x0C) == 0x0C ? AV_GET_BUFFER_FLAG_REF : 0)) < 0)
return ret; return ret;
s->current_picture = pic; s->current_picture = pic;