diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-10-02 04:18:23 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-10-03 20:34:35 +0200 |
| commit | 4ee77cefaed0cf19b03b4b6f4945f52301165469 (patch) | |
| tree | 48e8ed4fc887d6c51510ca47d214ab896c92f41c /libavcodec/proresdec2.c | |
| parent | c37138e01a93da2f9dd2cc5d4b77e5a38581d130 (diff) | |
| download | ffmpeg-4ee77cefaed0cf19b03b4b6f4945f52301165469.tar.gz | |
avcodec/proresdec2: Use LAST_SKIP_BITS where possible
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/proresdec2.c')
| -rw-r--r-- | libavcodec/proresdec2.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/libavcodec/proresdec2.c b/libavcodec/proresdec2.c index 22dc70eeb4..a7cea2b3b8 100644 --- a/libavcodec/proresdec2.c +++ b/libavcodec/proresdec2.c @@ -250,7 +250,7 @@ static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, cons return pic_data_size; } -#define DECODE_CODEWORD(val, codebook) \ +#define DECODE_CODEWORD(val, codebook, SKIP) \ do { \ unsigned int rice_order, exp_order, switch_bits; \ unsigned int q, buf, bits; \ @@ -271,14 +271,14 @@ static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, cons return AVERROR_INVALIDDATA; \ val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \ ((switch_bits + 1) << rice_order); \ - SKIP_BITS(re, gb, bits); \ + SKIP(re, gb, bits); \ } else if (rice_order) { \ SKIP_BITS(re, gb, q+1); \ val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \ - SKIP_BITS(re, gb, rice_order); \ + SKIP(re, gb, rice_order); \ } else { \ val = q; \ - SKIP_BITS(re, gb, q+1); \ + SKIP(re, gb, q+1); \ } \ } while (0) @@ -296,7 +296,7 @@ static av_always_inline int decode_dc_coeffs(GetBitContext *gb, int16_t *out, OPEN_READER(re, gb); - DECODE_CODEWORD(code, FIRST_DC_CB); + DECODE_CODEWORD(code, FIRST_DC_CB, LAST_SKIP_BITS); prev_dc = TOSIGNED(code); out[0] = prev_dc; @@ -305,7 +305,7 @@ static av_always_inline int decode_dc_coeffs(GetBitContext *gb, int16_t *out, code = 5; sign = 0; for (i = 1; i < blocks_per_slice; i++, out += 64) { - DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6U)]); + DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6U)], LAST_SKIP_BITS); if(code) sign ^= -(code & 1); else sign = 0; prev_dc += (((code + 1) >> 1) ^ sign) - sign; @@ -341,14 +341,14 @@ static av_always_inline int decode_ac_coeffs(AVCodecContext *avctx, GetBitContex if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left))) break; - DECODE_CODEWORD(run, run_to_cb[FFMIN(run, 15)]); + DECODE_CODEWORD(run, run_to_cb[FFMIN(run, 15)], LAST_SKIP_BITS); pos += run + 1; if (pos >= max_coeffs) { av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs); return AVERROR_INVALIDDATA; } - DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)]); + DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)], SKIP_BITS); level += 1; i = pos >> log2_block_count; |