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https://gitee.com/openharmony/third_party_ffmpeg
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dv: move inverse weight tables to decoder
The encoder has its own tables and does not access the idct_factor member of the DVVideoContext structure. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Christophe Gisquet
Michael Niedermayer
parent
6fe02d25ee
commit
05da586fef
@ -185,7 +185,6 @@ static const uint8_t dv_quant_areas[4] = { 6, 21, 43, 64 };
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int ff_dv_init_dynamic_tables(DVVideoContext *ctx, const AVDVProfile *d)
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{
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int j, i, c, s, p;
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uint32_t *factor1, *factor2;
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p = i = 0;
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for (c = 0; c < d->n_difchan; c++) {
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@ -203,39 +202,6 @@ int ff_dv_init_dynamic_tables(DVVideoContext *ctx, const AVDVProfile *d)
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}
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}
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factor1 = &ctx->idct_factor[0];
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factor2 = &ctx->idct_factor[DV_PROFILE_IS_HD(d) ? 4096 : 2816];
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if (DV_PROFILE_IS_HD(d)) {
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const uint16_t *iweight1, *iweight2;
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if (d->height == 720) {
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iweight1 = &ff_dv_iweight_720_y[0];
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iweight2 = &ff_dv_iweight_720_c[0];
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} else {
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iweight1 = &ff_dv_iweight_1080_y[0];
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iweight2 = &ff_dv_iweight_1080_c[0];
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}
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for (c = 0; c < 4; c++) {
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for (s = 0; s < 16; s++) {
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for (i = 0; i < 64; i++) {
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*factor1++ = (dv100_qstep[s] << (c + 9)) * iweight1[i];
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*factor2++ = (dv100_qstep[s] << (c + 9)) * iweight2[i];
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}
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}
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}
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} else {
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const uint16_t *iweight1 = &ff_dv_iweight_88[0];
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for (j = 0; j < 2; j++, iweight1 = &ff_dv_iweight_248[0]) {
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for (s = 0; s < 22; s++) {
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for (i = c = 0; c < 4; c++) {
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for (; i < dv_quant_areas[c]; i++) {
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*factor1 = iweight1[i] << (ff_dv_quant_shifts[s][c] + 1);
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*factor2++ = (*factor1++) << 1;
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}
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}
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}
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}
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}
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return 0;
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}
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@ -95,6 +95,7 @@ enum dv_pack_type {
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extern RL_VLC_ELEM ff_dv_rl_vlc[1184];
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int ff_dv_init_dynamic_tables(DVVideoContext *s, const AVDVProfile *d);
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int ff_dvvideo_init(AVCodecContext *avctx);
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static inline int dv_work_pool_size(const AVDVProfile *d)
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@ -69,71 +69,6 @@ const uint8_t ff_dv_quant_shifts[22][4] = {
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const uint8_t ff_dv_quant_offset[4] = { 6, 3, 0, 1 };
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const uint16_t ff_dv_iweight_88[64] = {
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32768, 16705, 16705, 17734, 17032, 17734, 18205, 18081,
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18081, 18205, 18725, 18562, 19195, 18562, 18725, 19266,
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19091, 19705, 19705, 19091, 19266, 21407, 19643, 20267,
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20228, 20267, 19643, 21407, 22725, 21826, 20853, 20806,
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20806, 20853, 21826, 22725, 23170, 23170, 21407, 21400,
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21407, 23170, 23170, 24598, 23786, 22018, 22018, 23786,
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24598, 25251, 24465, 22654, 24465, 25251, 25972, 25172,
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25172, 25972, 26722, 27969, 26722, 29692, 29692, 31521,
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};
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const uint16_t ff_dv_iweight_248[64] = {
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32768, 16384, 16705, 16705, 17734, 17734, 17734, 17734,
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18081, 18081, 18725, 18725, 21407, 21407, 19091, 19091,
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19195, 19195, 18205, 18205, 18725, 18725, 19705, 19705,
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20267, 20267, 21826, 21826, 23170, 23170, 20806, 20806,
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20267, 20267, 19266, 19266, 21407, 21407, 20853, 20853,
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21400, 21400, 23786, 23786, 24465, 24465, 22018, 22018,
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23170, 23170, 22725, 22725, 24598, 24598, 24465, 24465,
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25172, 25172, 27969, 27969, 25972, 25972, 29692, 29692
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};
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/**
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* The "inverse" DV100 weights are actually just the spec weights (zig-zagged).
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*/
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const uint16_t ff_dv_iweight_1080_y[64] = {
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128, 16, 16, 17, 17, 17, 18, 18,
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18, 18, 18, 18, 19, 18, 18, 19,
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19, 19, 19, 19, 19, 42, 38, 40,
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40, 40, 38, 42, 44, 43, 41, 41,
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41, 41, 43, 44, 45, 45, 42, 42,
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42, 45, 45, 48, 46, 43, 43, 46,
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48, 49, 48, 44, 48, 49, 101, 98,
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98, 101, 104, 109, 104, 116, 116, 123,
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};
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const uint16_t ff_dv_iweight_1080_c[64] = {
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128, 16, 16, 17, 17, 17, 25, 25,
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25, 25, 26, 25, 26, 25, 26, 26,
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26, 27, 27, 26, 26, 42, 38, 40,
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40, 40, 38, 42, 44, 43, 41, 41,
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41, 41, 43, 44, 91, 91, 84, 84,
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84, 91, 91, 96, 93, 86, 86, 93,
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96, 197, 191, 177, 191, 197, 203, 197,
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197, 203, 209, 219, 209, 232, 232, 246,
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};
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const uint16_t ff_dv_iweight_720_y[64] = {
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128, 16, 16, 17, 17, 17, 18, 18,
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18, 18, 18, 18, 19, 18, 18, 19,
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19, 19, 19, 19, 19, 42, 38, 40,
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40, 40, 38, 42, 44, 43, 41, 41,
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41, 41, 43, 44, 68, 68, 63, 63,
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63, 68, 68, 96, 92, 86, 86, 92,
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96, 98, 96, 88, 96, 98, 202, 196,
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196, 202, 208, 218, 208, 232, 232, 246,
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};
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const uint16_t ff_dv_iweight_720_c[64] = {
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128, 24, 24, 26, 26, 26, 36, 36,
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36, 36, 36, 36, 38, 36, 36, 38,
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38, 38, 38, 38, 38, 84, 76, 80,
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80, 80, 76, 84, 88, 86, 82, 82,
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82, 82, 86, 88, 182, 182, 168, 168,
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168, 182, 182, 192, 186, 192, 172, 186,
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192, 394, 382, 354, 382, 394, 406, 394,
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394, 406, 418, 438, 418, 464, 464, 492,
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};
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/*
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* There's a catch about the following three tables: the mapping they establish
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* between (run, level) and vlc is not 1-1. So you have to watch out for that
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@ -26,13 +26,6 @@ extern const uint8_t ff_dv_zigzag248_direct[64];
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extern const uint8_t ff_dv_quant_shifts[22][4];
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extern const uint8_t ff_dv_quant_offset[4];
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extern const uint16_t ff_dv_iweight_88[64];
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extern const uint16_t ff_dv_iweight_248[64];
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extern const uint16_t ff_dv_iweight_1080_y[64];
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extern const uint16_t ff_dv_iweight_1080_c[64];
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extern const uint16_t ff_dv_iweight_720_y[64];
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extern const uint16_t ff_dv_iweight_720_c[64];
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#define NB_DV_VLC 409
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extern const uint16_t ff_dv_vlc_bits[NB_DV_VLC];
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@ -62,6 +62,117 @@ typedef struct BlockInfo {
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static const int dv_iweight_bits = 14;
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static const uint16_t dv_iweight_88[64] = {
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32768, 16705, 16705, 17734, 17032, 17734, 18205, 18081,
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18081, 18205, 18725, 18562, 19195, 18562, 18725, 19266,
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19091, 19705, 19705, 19091, 19266, 21407, 19643, 20267,
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20228, 20267, 19643, 21407, 22725, 21826, 20853, 20806,
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20806, 20853, 21826, 22725, 23170, 23170, 21407, 21400,
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21407, 23170, 23170, 24598, 23786, 22018, 22018, 23786,
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24598, 25251, 24465, 22654, 24465, 25251, 25972, 25172,
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25172, 25972, 26722, 27969, 26722, 29692, 29692, 31521,
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};
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static const uint16_t dv_iweight_248[64] = {
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32768, 16384, 16705, 16705, 17734, 17734, 17734, 17734,
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18081, 18081, 18725, 18725, 21407, 21407, 19091, 19091,
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19195, 19195, 18205, 18205, 18725, 18725, 19705, 19705,
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20267, 20267, 21826, 21826, 23170, 23170, 20806, 20806,
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20267, 20267, 19266, 19266, 21407, 21407, 20853, 20853,
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21400, 21400, 23786, 23786, 24465, 24465, 22018, 22018,
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23170, 23170, 22725, 22725, 24598, 24598, 24465, 24465,
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25172, 25172, 27969, 27969, 25972, 25972, 29692, 29692
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};
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/**
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* The "inverse" DV100 weights are actually just the spec weights (zig-zagged).
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*/
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static const uint16_t dv_iweight_1080_y[64] = {
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128, 16, 16, 17, 17, 17, 18, 18,
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18, 18, 18, 18, 19, 18, 18, 19,
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19, 19, 19, 19, 19, 42, 38, 40,
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40, 40, 38, 42, 44, 43, 41, 41,
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41, 41, 43, 44, 45, 45, 42, 42,
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42, 45, 45, 48, 46, 43, 43, 46,
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48, 49, 48, 44, 48, 49, 101, 98,
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98, 101, 104, 109, 104, 116, 116, 123,
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};
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static const uint16_t dv_iweight_1080_c[64] = {
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128, 16, 16, 17, 17, 17, 25, 25,
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25, 25, 26, 25, 26, 25, 26, 26,
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26, 27, 27, 26, 26, 42, 38, 40,
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40, 40, 38, 42, 44, 43, 41, 41,
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41, 41, 43, 44, 91, 91, 84, 84,
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84, 91, 91, 96, 93, 86, 86, 93,
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96, 197, 191, 177, 191, 197, 203, 197,
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197, 203, 209, 219, 209, 232, 232, 246,
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};
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static const uint16_t dv_iweight_720_y[64] = {
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128, 16, 16, 17, 17, 17, 18, 18,
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18, 18, 18, 18, 19, 18, 18, 19,
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19, 19, 19, 19, 19, 42, 38, 40,
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40, 40, 38, 42, 44, 43, 41, 41,
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41, 41, 43, 44, 68, 68, 63, 63,
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63, 68, 68, 96, 92, 86, 86, 92,
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96, 98, 96, 88, 96, 98, 202, 196,
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196, 202, 208, 218, 208, 232, 232, 246,
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};
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const uint16_t dv_iweight_720_c[64] = {
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128, 24, 24, 26, 26, 26, 36, 36,
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36, 36, 36, 36, 38, 36, 36, 38,
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38, 38, 38, 38, 38, 84, 76, 80,
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80, 80, 76, 84, 88, 86, 82, 82,
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82, 82, 86, 88, 182, 182, 168, 168,
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168, 182, 182, 192, 186, 192, 172, 186,
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192, 394, 382, 354, 382, 394, 406, 394,
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394, 406, 418, 438, 418, 464, 464, 492,
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};
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static void dv_init_weight_tables(DVVideoContext *ctx, const AVDVProfile *d)
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{
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int j, i, c, s;
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uint32_t *factor1 = &ctx->idct_factor[0],
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*factor2 = &ctx->idct_factor[DV_PROFILE_IS_HD(d) ? 4096 : 2816];
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if (DV_PROFILE_IS_HD(d)) {
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/* quantization quanta by QNO for DV100 */
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static const uint8_t dv100_qstep[16] = {
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1, /* QNO = 0 and 1 both have no quantization */
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1,
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2, 3, 4, 5, 6, 7, 8, 16, 18, 20, 22, 24, 28, 52
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};
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const uint16_t *iweight1, *iweight2;
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if (d->height == 720) {
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iweight1 = &dv_iweight_720_y[0];
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iweight2 = &dv_iweight_720_c[0];
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} else {
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iweight1 = &dv_iweight_1080_y[0];
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iweight2 = &dv_iweight_1080_c[0];
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}
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for (c = 0; c < 4; c++) {
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for (s = 0; s < 16; s++) {
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for (i = 0; i < 64; i++) {
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*factor1++ = (dv100_qstep[s] << (c + 9)) * iweight1[i];
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*factor2++ = (dv100_qstep[s] << (c + 9)) * iweight2[i];
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}
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}
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}
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} else {
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static const uint8_t dv_quant_areas[4] = { 6, 21, 43, 64 };
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const uint16_t *iweight1 = &dv_iweight_88[0];
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for (j = 0; j < 2; j++, iweight1 = &dv_iweight_248[0]) {
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for (s = 0; s < 22; s++) {
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for (i = c = 0; c < 4; c++) {
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for (; i < dv_quant_areas[c]; i++) {
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*factor1 = iweight1[i] << (ff_dv_quant_shifts[s][c] + 1);
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*factor2++ = (*factor1++) << 1;
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}
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}
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}
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}
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}
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}
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static av_cold int dvvideo_decode_init(AVCodecContext *avctx)
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{
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DVVideoContext *s = avctx->priv_data;
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@ -375,6 +486,7 @@ static int dvvideo_decode_frame(AVCodecContext *avctx, void *data,
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av_log(avctx, AV_LOG_ERROR, "Error initializing the work tables.\n");
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return ret;
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}
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dv_init_weight_tables(s, sys);
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s->sys = sys;
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}
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