avcodec/vc1_parser: Check init_get_bits8()
Addresses Coverity issue #1441935. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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@ -26,6 +26,7 @@
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*/
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#include "libavutil/attributes.h"
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#include "libavutil/avassert.h"
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#include "parser.h"
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#include "vc1.h"
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#include "get_bits.h"
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@ -66,7 +67,9 @@ static void vc1_extract_header(AVCodecParserContext *s, AVCodecContext *avctx,
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GetBitContext gb;
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int ret;
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vpc->v.s.avctx = avctx;
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init_get_bits8(&gb, buf, buf_size);
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ret = init_get_bits8(&gb, buf, buf_size);
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av_assert1(ret >= 0); // buf_size is bounded by UNESCAPED_THRESHOLD
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switch (vpc->prev_start_code) {
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case VC1_CODE_SEQHDR & 0xFF:
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ff_vc1_decode_sequence_header(avctx, &vpc->v, &gb);
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