From dbc1163b203b175d246b7454c32ac176f84006d1 Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Wed, 25 Feb 2015 15:29:15 +0100 Subject: prores: Extend the padding check to 16bit Some files produced by the official encoder have up to 16bit of padding instead of the expected padding to the byte. Use a self-explanatory macro instead of a simple number. CC: libav-stable@libav.org Signed-off-by: Luca Barbato --- libavcodec/proresdec.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'libavcodec/proresdec.c') diff --git a/libavcodec/proresdec.c b/libavcodec/proresdec.c index 1bbe267ec3..b2c2b28fdf 100644 --- a/libavcodec/proresdec.c +++ b/libavcodec/proresdec.c @@ -365,6 +365,7 @@ static inline void decode_dc_coeffs(GetBitContext *gb, int16_t *out, } } +#define MAX_PADDING 16 /** * Decode AC coefficients for all blocks in a slice. @@ -389,7 +390,7 @@ static inline int decode_ac_coeffs(GetBitContext *gb, int16_t *out, lev_cb_index = ff_prores_lev_to_cb_index[FFMIN(level, 9)]; bits_left = get_bits_left(gb); - if (bits_left <= 0 || (bits_left <= 8 && !show_bits(gb, bits_left))) + if (bits_left <= 0 || (bits_left <= MAX_PADDING && !show_bits(gb, bits_left))) return 0; run = decode_vlc_codeword(gb, ff_prores_ac_codebook[run_cb_index]); @@ -397,7 +398,7 @@ static inline int decode_ac_coeffs(GetBitContext *gb, int16_t *out, return AVERROR_INVALIDDATA; bits_left = get_bits_left(gb); - if (bits_left <= 0 || (bits_left <= 8 && !show_bits(gb, bits_left))) + if (bits_left <= 0 || (bits_left <= MAX_PADDING && !show_bits(gb, bits_left))) return AVERROR_INVALIDDATA; level = decode_vlc_codeword(gb, ff_prores_ac_codebook[lev_cb_index]) + 1; -- cgit v1.2.3