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Code Issues Releases Activity

avcodec/proresenc_anatoliy: move DC codebook LUT to shared proresdata

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This is going to be shared with proresenc_kostya in the upcoming commit.
This commit is contained in:
Clément Bœsch 2023-12-11 01:17:18 +01:00
parent 9f547e2f15
commit f06f2cf16a
3 changed files with 4 additions and 2 deletions
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2
libavcodec/proresdata.c
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@ -44,6 +44,8 @@ const uint8_t ff_prores_interlaced_scan[64] = {
46, 39, 47, 54, 61, 62, 55, 63
};
const uint8_t ff_prores_dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70 };
const uint8_t ff_prores_run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29,
0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };

1
libavcodec/proresdata.h
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@ -29,6 +29,7 @@
extern const uint8_t ff_prores_progressive_scan[64];
extern const uint8_t ff_prores_interlaced_scan[64];
extern const uint8_t ff_prores_dc_codebook[7];
extern const uint8_t ff_prores_run_to_cb[16];
extern const uint8_t ff_prores_level_to_cb[10];

3
libavcodec/proresenc_anatoliy.c
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@ -266,7 +266,6 @@ static av_always_inline int get_level(int val)
return (val ^ sign) - sign;
}
static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
static void encode_dc_coeffs(PutBitContext *pb, int16_t *in,
int blocks_per_slice, int *qmat)
@ -286,7 +285,7 @@ static void encode_dc_coeffs(PutBitContext *pb, int16_t *in,
diff_sign = DIFF_SIGN(delta, sign);
new_code = TO_GOLOMB2(get_level(delta), diff_sign);
encode_codeword(pb, new_code, dc_codebook[FFMIN(code, 6)]);
encode_codeword(pb, new_code, ff_prores_dc_codebook[FFMIN(code, 6)]);
code = new_code;
sign = delta >> 31;