mirror of https://git.ffmpeg.org/ffmpeg.git
Move encoder-specific quantize_c and related tables to the H.264 encoder.
Originally committed as revision 15937 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Diego Biurrun
parent
085bf69f31
commit
f107a02d4e
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@ -1587,85 +1587,6 @@ static inline int get_chroma_qp(H264Context *h, int t, int qscale){
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return h->pps.chroma_qp_table[t][qscale];
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}
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//FIXME need to check that this does not overflow signed 32 bit for low qp, I am not sure, it's very close
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//FIXME check that gcc inlines this (and optimizes intra & separate_dc stuff away)
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static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int separate_dc){
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int i;
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const int * const quant_table= quant_coeff[qscale];
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const int bias= intra ? (1<<QUANT_SHIFT)/3 : (1<<QUANT_SHIFT)/6;
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const unsigned int threshold1= (1<<QUANT_SHIFT) - bias - 1;
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const unsigned int threshold2= (threshold1<<1);
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int last_non_zero;
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if(separate_dc){
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if(qscale<=18){
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//avoid overflows
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const int dc_bias= intra ? (1<<(QUANT_SHIFT-2))/3 : (1<<(QUANT_SHIFT-2))/6;
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const unsigned int dc_threshold1= (1<<(QUANT_SHIFT-2)) - dc_bias - 1;
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const unsigned int dc_threshold2= (dc_threshold1<<1);
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int level= block[0]*quant_coeff[qscale+18][0];
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if(((unsigned)(level+dc_threshold1))>dc_threshold2){
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if(level>0){
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level= (dc_bias + level)>>(QUANT_SHIFT-2);
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block[0]= level;
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}else{
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level= (dc_bias - level)>>(QUANT_SHIFT-2);
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block[0]= -level;
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}
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// last_non_zero = i;
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}else{
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block[0]=0;
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}
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}else{
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const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6;
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const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1;
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const unsigned int dc_threshold2= (dc_threshold1<<1);
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int level= block[0]*quant_table[0];
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if(((unsigned)(level+dc_threshold1))>dc_threshold2){
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if(level>0){
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level= (dc_bias + level)>>(QUANT_SHIFT+1);
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block[0]= level;
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}else{
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level= (dc_bias - level)>>(QUANT_SHIFT+1);
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block[0]= -level;
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}
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// last_non_zero = i;
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}else{
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block[0]=0;
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}
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}
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last_non_zero= 0;
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i=1;
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}else{
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last_non_zero= -1;
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i=0;
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}
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for(; i<16; i++){
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const int j= scantable[i];
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int level= block[j]*quant_table[j];
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// if( bias+level >= (1<<(QMAT_SHIFT - 3))
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// || bias-level >= (1<<(QMAT_SHIFT - 3))){
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if(((unsigned)(level+threshold1))>threshold2){
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if(level>0){
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level= (bias + level)>>QUANT_SHIFT;
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block[j]= level;
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}else{
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level= (bias - level)>>QUANT_SHIFT;
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block[j]= -level;
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}
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last_non_zero = i;
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}else{
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block[j]=0;
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}
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}
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return last_non_zero;
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}
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static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
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int src_x_offset, int src_y_offset,
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@ -513,63 +513,6 @@ static const uint8_t dequant8_coeff_init[6][6]={
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{36,32,58,34,46,43},
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};
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#define QUANT_SHIFT 22
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static const int quant_coeff[52][16]={
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{ 419430,258111,419430,258111,258111,167772,258111,167772,419430,258111,419430,258111,258111,167772,258111,167772,},
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{ 381300,239675,381300,239675,239675,149131,239675,149131,381300,239675,381300,239675,239675,149131,239675,149131,},
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{ 322639,209715,322639,209715,209715,134218,209715,134218,322639,209715,322639,209715,209715,134218,209715,134218,},
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{ 299593,186414,299593,186414,186414,116711,186414,116711,299593,186414,299593,186414,186414,116711,186414,116711,},
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{ 262144,167772,262144,167772,167772,107374,167772,107374,262144,167772,262144,167772,167772,107374,167772,107374,},
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{ 233017,145889,233017,145889,145889, 92564,145889, 92564,233017,145889,233017,145889,145889, 92564,145889, 92564,},
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{ 209715,129056,209715,129056,129056, 83886,129056, 83886,209715,129056,209715,129056,129056, 83886,129056, 83886,},
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{ 190650,119837,190650,119837,119837, 74565,119837, 74565,190650,119837,190650,119837,119837, 74565,119837, 74565,},
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{ 161319,104858,161319,104858,104858, 67109,104858, 67109,161319,104858,161319,104858,104858, 67109,104858, 67109,},
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{ 149797, 93207,149797, 93207, 93207, 58356, 93207, 58356,149797, 93207,149797, 93207, 93207, 58356, 93207, 58356,},
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{ 131072, 83886,131072, 83886, 83886, 53687, 83886, 53687,131072, 83886,131072, 83886, 83886, 53687, 83886, 53687,},
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{ 116508, 72944,116508, 72944, 72944, 46282, 72944, 46282,116508, 72944,116508, 72944, 72944, 46282, 72944, 46282,},
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{ 104858, 64528,104858, 64528, 64528, 41943, 64528, 41943,104858, 64528,104858, 64528, 64528, 41943, 64528, 41943,},
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{ 95325, 59919, 95325, 59919, 59919, 37283, 59919, 37283, 95325, 59919, 95325, 59919, 59919, 37283, 59919, 37283,},
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{ 80660, 52429, 80660, 52429, 52429, 33554, 52429, 33554, 80660, 52429, 80660, 52429, 52429, 33554, 52429, 33554,},
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{ 74898, 46603, 74898, 46603, 46603, 29178, 46603, 29178, 74898, 46603, 74898, 46603, 46603, 29178, 46603, 29178,},
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{ 65536, 41943, 65536, 41943, 41943, 26844, 41943, 26844, 65536, 41943, 65536, 41943, 41943, 26844, 41943, 26844,},
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{ 58254, 36472, 58254, 36472, 36472, 23141, 36472, 23141, 58254, 36472, 58254, 36472, 36472, 23141, 36472, 23141,},
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{ 52429, 32264, 52429, 32264, 32264, 20972, 32264, 20972, 52429, 32264, 52429, 32264, 32264, 20972, 32264, 20972,},
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{ 47663, 29959, 47663, 29959, 29959, 18641, 29959, 18641, 47663, 29959, 47663, 29959, 29959, 18641, 29959, 18641,},
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{ 40330, 26214, 40330, 26214, 26214, 16777, 26214, 16777, 40330, 26214, 40330, 26214, 26214, 16777, 26214, 16777,},
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{ 37449, 23302, 37449, 23302, 23302, 14589, 23302, 14589, 37449, 23302, 37449, 23302, 23302, 14589, 23302, 14589,},
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{ 32768, 20972, 32768, 20972, 20972, 13422, 20972, 13422, 32768, 20972, 32768, 20972, 20972, 13422, 20972, 13422,},
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{ 29127, 18236, 29127, 18236, 18236, 11570, 18236, 11570, 29127, 18236, 29127, 18236, 18236, 11570, 18236, 11570,},
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{ 26214, 16132, 26214, 16132, 16132, 10486, 16132, 10486, 26214, 16132, 26214, 16132, 16132, 10486, 16132, 10486,},
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{ 23831, 14980, 23831, 14980, 14980, 9321, 14980, 9321, 23831, 14980, 23831, 14980, 14980, 9321, 14980, 9321,},
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{ 20165, 13107, 20165, 13107, 13107, 8389, 13107, 8389, 20165, 13107, 20165, 13107, 13107, 8389, 13107, 8389,},
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{ 18725, 11651, 18725, 11651, 11651, 7294, 11651, 7294, 18725, 11651, 18725, 11651, 11651, 7294, 11651, 7294,},
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{ 16384, 10486, 16384, 10486, 10486, 6711, 10486, 6711, 16384, 10486, 16384, 10486, 10486, 6711, 10486, 6711,},
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{ 14564, 9118, 14564, 9118, 9118, 5785, 9118, 5785, 14564, 9118, 14564, 9118, 9118, 5785, 9118, 5785,},
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{ 13107, 8066, 13107, 8066, 8066, 5243, 8066, 5243, 13107, 8066, 13107, 8066, 8066, 5243, 8066, 5243,},
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{ 11916, 7490, 11916, 7490, 7490, 4660, 7490, 4660, 11916, 7490, 11916, 7490, 7490, 4660, 7490, 4660,},
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{ 10082, 6554, 10082, 6554, 6554, 4194, 6554, 4194, 10082, 6554, 10082, 6554, 6554, 4194, 6554, 4194,},
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{ 9362, 5825, 9362, 5825, 5825, 3647, 5825, 3647, 9362, 5825, 9362, 5825, 5825, 3647, 5825, 3647,},
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{ 8192, 5243, 8192, 5243, 5243, 3355, 5243, 3355, 8192, 5243, 8192, 5243, 5243, 3355, 5243, 3355,},
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{ 7282, 4559, 7282, 4559, 4559, 2893, 4559, 2893, 7282, 4559, 7282, 4559, 4559, 2893, 4559, 2893,},
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{ 6554, 4033, 6554, 4033, 4033, 2621, 4033, 2621, 6554, 4033, 6554, 4033, 4033, 2621, 4033, 2621,},
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{ 5958, 3745, 5958, 3745, 3745, 2330, 3745, 2330, 5958, 3745, 5958, 3745, 3745, 2330, 3745, 2330,},
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{ 5041, 3277, 5041, 3277, 3277, 2097, 3277, 2097, 5041, 3277, 5041, 3277, 3277, 2097, 3277, 2097,},
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{ 4681, 2913, 4681, 2913, 2913, 1824, 2913, 1824, 4681, 2913, 4681, 2913, 2913, 1824, 2913, 1824,},
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{ 4096, 2621, 4096, 2621, 2621, 1678, 2621, 1678, 4096, 2621, 4096, 2621, 2621, 1678, 2621, 1678,},
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{ 3641, 2280, 3641, 2280, 2280, 1446, 2280, 1446, 3641, 2280, 3641, 2280, 2280, 1446, 2280, 1446,},
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{ 3277, 2016, 3277, 2016, 2016, 1311, 2016, 1311, 3277, 2016, 3277, 2016, 2016, 1311, 2016, 1311,},
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{ 2979, 1872, 2979, 1872, 1872, 1165, 1872, 1165, 2979, 1872, 2979, 1872, 1872, 1165, 1872, 1165,},
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{ 2521, 1638, 2521, 1638, 1638, 1049, 1638, 1049, 2521, 1638, 2521, 1638, 1638, 1049, 1638, 1049,},
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{ 2341, 1456, 2341, 1456, 1456, 912, 1456, 912, 2341, 1456, 2341, 1456, 1456, 912, 1456, 912,},
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{ 2048, 1311, 2048, 1311, 1311, 839, 1311, 839, 2048, 1311, 2048, 1311, 1311, 839, 1311, 839,},
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{ 1820, 1140, 1820, 1140, 1140, 723, 1140, 723, 1820, 1140, 1820, 1140, 1140, 723, 1140, 723,},
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{ 1638, 1008, 1638, 1008, 1008, 655, 1008, 655, 1638, 1008, 1638, 1008, 1008, 655, 1008, 655,},
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{ 1489, 936, 1489, 936, 936, 583, 936, 583, 1489, 936, 1489, 936, 936, 583, 936, 583,},
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{ 1260, 819, 1260, 819, 819, 524, 819, 524, 1260, 819, 1260, 819, 819, 524, 819, 524,},
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{ 1170, 728, 1170, 728, 728, 456, 728, 456, 1170, 728, 1170, 728, 728, 456, 728, 456,},
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};
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/* Deblocking filter (p153) */
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static const uint8_t alpha_table[52*3] = {
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@ -120,3 +120,141 @@ static const uint8_t inter_cbp_to_golomb[48] = {
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1, 32, 33, 36, 34, 37, 44, 40, 35, 45, 38, 41, 39, 42, 43, 19,
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6, 24, 25, 20, 26, 21, 46, 28, 27, 47, 22, 29, 23, 30, 31, 12
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};
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#define QUANT_SHIFT 22
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static const int quant_coeff[52][16] = {
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{ 419430, 258111, 419430, 258111, 258111, 167772, 258111, 167772, 419430, 258111, 419430, 258111, 258111, 167772, 258111, 167772,},
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{ 381300, 239675, 381300, 239675, 239675, 149131, 239675, 149131, 381300, 239675, 381300, 239675, 239675, 149131, 239675, 149131,},
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{ 322639, 209715, 322639, 209715, 209715, 134218, 209715, 134218, 322639, 209715, 322639, 209715, 209715, 134218, 209715, 134218,},
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{ 299593, 186414, 299593, 186414, 186414, 116711, 186414, 116711, 299593, 186414, 299593, 186414, 186414, 116711, 186414, 116711,},
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{ 262144, 167772, 262144, 167772, 167772, 107374, 167772, 107374, 262144, 167772, 262144, 167772, 167772, 107374, 167772, 107374,},
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{ 233017, 145889, 233017, 145889, 145889, 92564, 145889, 92564, 233017, 145889, 233017, 145889, 145889, 92564, 145889, 92564,},
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{ 209715, 129056, 209715, 129056, 129056, 83886, 129056, 83886, 209715, 129056, 209715, 129056, 129056, 83886, 129056, 83886,},
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{ 190650, 119837, 190650, 119837, 119837, 74565, 119837, 74565, 190650, 119837, 190650, 119837, 119837, 74565, 119837, 74565,},
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{ 161319, 104858, 161319, 104858, 104858, 67109, 104858, 67109, 161319, 104858, 161319, 104858, 104858, 67109, 104858, 67109,},
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{ 149797, 93207, 149797, 93207, 93207, 58356, 93207, 58356, 149797, 93207, 149797, 93207, 93207, 58356, 93207, 58356,},
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{ 131072, 83886, 131072, 83886, 83886, 53687, 83886, 53687, 131072, 83886, 131072, 83886, 83886, 53687, 83886, 53687,},
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{ 116508, 72944, 116508, 72944, 72944, 46282, 72944, 46282, 116508, 72944, 116508, 72944, 72944, 46282, 72944, 46282,},
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{ 104858, 64528, 104858, 64528, 64528, 41943, 64528, 41943, 104858, 64528, 104858, 64528, 64528, 41943, 64528, 41943,},
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{ 95325, 59919, 95325, 59919, 59919, 37283, 59919, 37283, 95325, 59919, 95325, 59919, 59919, 37283, 59919, 37283,},
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{ 80660, 52429, 80660, 52429, 52429, 33554, 52429, 33554, 80660, 52429, 80660, 52429, 52429, 33554, 52429, 33554,},
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{ 74898, 46603, 74898, 46603, 46603, 29178, 46603, 29178, 74898, 46603, 74898, 46603, 46603, 29178, 46603, 29178,},
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{ 65536, 41943, 65536, 41943, 41943, 26844, 41943, 26844, 65536, 41943, 65536, 41943, 41943, 26844, 41943, 26844,},
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{ 58254, 36472, 58254, 36472, 36472, 23141, 36472, 23141, 58254, 36472, 58254, 36472, 36472, 23141, 36472, 23141,},
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{ 52429, 32264, 52429, 32264, 32264, 20972, 32264, 20972, 52429, 32264, 52429, 32264, 32264, 20972, 32264, 20972,},
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{ 47663, 29959, 47663, 29959, 29959, 18641, 29959, 18641, 47663, 29959, 47663, 29959, 29959, 18641, 29959, 18641,},
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{ 40330, 26214, 40330, 26214, 26214, 16777, 26214, 16777, 40330, 26214, 40330, 26214, 26214, 16777, 26214, 16777,},
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{ 37449, 23302, 37449, 23302, 23302, 14589, 23302, 14589, 37449, 23302, 37449, 23302, 23302, 14589, 23302, 14589,},
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{ 32768, 20972, 32768, 20972, 20972, 13422, 20972, 13422, 32768, 20972, 32768, 20972, 20972, 13422, 20972, 13422,},
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{ 29127, 18236, 29127, 18236, 18236, 11570, 18236, 11570, 29127, 18236, 29127, 18236, 18236, 11570, 18236, 11570,},
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{ 26214, 16132, 26214, 16132, 16132, 10486, 16132, 10486, 26214, 16132, 26214, 16132, 16132, 10486, 16132, 10486,},
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{ 23831, 14980, 23831, 14980, 14980, 9321, 14980, 9321, 23831, 14980, 23831, 14980, 14980, 9321, 14980, 9321,},
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{ 20165, 13107, 20165, 13107, 13107, 8389, 13107, 8389, 20165, 13107, 20165, 13107, 13107, 8389, 13107, 8389,},
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{ 18725, 11651, 18725, 11651, 11651, 7294, 11651, 7294, 18725, 11651, 18725, 11651, 11651, 7294, 11651, 7294,},
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{ 16384, 10486, 16384, 10486, 10486, 6711, 10486, 6711, 16384, 10486, 16384, 10486, 10486, 6711, 10486, 6711,},
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{ 14564, 9118, 14564, 9118, 9118, 5785, 9118, 5785, 14564, 9118, 14564, 9118, 9118, 5785, 9118, 5785,},
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{ 13107, 8066, 13107, 8066, 8066, 5243, 8066, 5243, 13107, 8066, 13107, 8066, 8066, 5243, 8066, 5243,},
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{ 11916, 7490, 11916, 7490, 7490, 4660, 7490, 4660, 11916, 7490, 11916, 7490, 7490, 4660, 7490, 4660,},
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{ 10082, 6554, 10082, 6554, 6554, 4194, 6554, 4194, 10082, 6554, 10082, 6554, 6554, 4194, 6554, 4194,},
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{ 9362, 5825, 9362, 5825, 5825, 3647, 5825, 3647, 9362, 5825, 9362, 5825, 5825, 3647, 5825, 3647,},
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{ 8192, 5243, 8192, 5243, 5243, 3355, 5243, 3355, 8192, 5243, 8192, 5243, 5243, 3355, 5243, 3355,},
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{ 7282, 4559, 7282, 4559, 4559, 2893, 4559, 2893, 7282, 4559, 7282, 4559, 4559, 2893, 4559, 2893,},
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{ 6554, 4033, 6554, 4033, 4033, 2621, 4033, 2621, 6554, 4033, 6554, 4033, 4033, 2621, 4033, 2621,},
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{ 5958, 3745, 5958, 3745, 3745, 2330, 3745, 2330, 5958, 3745, 5958, 3745, 3745, 2330, 3745, 2330,},
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{ 5041, 3277, 5041, 3277, 3277, 2097, 3277, 2097, 5041, 3277, 5041, 3277, 3277, 2097, 3277, 2097,},
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{ 4681, 2913, 4681, 2913, 2913, 1824, 2913, 1824, 4681, 2913, 4681, 2913, 2913, 1824, 2913, 1824,},
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{ 4096, 2621, 4096, 2621, 2621, 1678, 2621, 1678, 4096, 2621, 4096, 2621, 2621, 1678, 2621, 1678,},
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{ 3641, 2280, 3641, 2280, 2280, 1446, 2280, 1446, 3641, 2280, 3641, 2280, 2280, 1446, 2280, 1446,},
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{ 3277, 2016, 3277, 2016, 2016, 1311, 2016, 1311, 3277, 2016, 3277, 2016, 2016, 1311, 2016, 1311,},
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{ 2979, 1872, 2979, 1872, 1872, 1165, 1872, 1165, 2979, 1872, 2979, 1872, 1872, 1165, 1872, 1165,},
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{ 2521, 1638, 2521, 1638, 1638, 1049, 1638, 1049, 2521, 1638, 2521, 1638, 1638, 1049, 1638, 1049,},
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{ 2341, 1456, 2341, 1456, 1456, 912, 1456, 912, 2341, 1456, 2341, 1456, 1456, 912, 1456, 912,},
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{ 2048, 1311, 2048, 1311, 1311, 839, 1311, 839, 2048, 1311, 2048, 1311, 1311, 839, 1311, 839,},
|
||||
{ 1820, 1140, 1820, 1140, 1140, 723, 1140, 723, 1820, 1140, 1820, 1140, 1140, 723, 1140, 723,},
|
||||
{ 1638, 1008, 1638, 1008, 1008, 655, 1008, 655, 1638, 1008, 1638, 1008, 1008, 655, 1008, 655,},
|
||||
{ 1489, 936, 1489, 936, 936, 583, 936, 583, 1489, 936, 1489, 936, 936, 583, 936, 583,},
|
||||
{ 1260, 819, 1260, 819, 819, 524, 819, 524, 1260, 819, 1260, 819, 819, 524, 819, 524,},
|
||||
{ 1170, 728, 1170, 728, 728, 456, 728, 456, 1170, 728, 1170, 728, 728, 456, 728, 456,},
|
||||
};
|
||||
|
||||
//FIXME need to check that this does not overflow signed 32 bit for low qp, I am not sure, it's very close
|
||||
//FIXME check that gcc inlines this (and optimizes intra & separate_dc stuff away)
|
||||
static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale,
|
||||
int intra, int separate_dc)
|
||||
{
|
||||
int i;
|
||||
const int * const quant_3Btable = quant_coeff[qscale];
|
||||
const int bias = intra ? (1 << QUANT_SHIFT) / 3 : (1 << QUANT_SHIFT) / 6;
|
||||
const unsigned int threshold1 = (1 << QUANT_SHIFT) - bias - 1;
|
||||
const unsigned int threshold2 = (threshold1 << 1);
|
||||
int last_non_zero;
|
||||
|
||||
if (separate_dc) {
|
||||
if (qscale <= 18) {
|
||||
//avoid overflows
|
||||
const int dc_bias = intra ? (1 << (QUANT_SHIFT - 2)) / 3 : (1 << (QUANT_SHIFT - 2)) / 6;
|
||||
const unsigned int dc_threshold1 = (1 << (QUANT_SHIFT - 2)) - dc_bias - 1;
|
||||
const unsigned int dc_threshold2 = (dc_threshold1 << 1);
|
||||
|
||||
int level = block[0]*quant_coeff[qscale+18][0];
|
||||
if (((unsigned)(level + dc_threshold1)) > dc_threshold2) {
|
||||
if (level > 0) {
|
||||
level = (dc_bias + level) >> (QUANT_SHIFT - 2);
|
||||
block[0] = level;
|
||||
} else {
|
||||
level = (dc_bias - level) >> (QUANT_SHIFT - 2);
|
||||
block[0] = -level;
|
||||
}
|
||||
// last_non_zero = i;
|
||||
} else {
|
||||
block[0] = 0;
|
||||
}
|
||||
} else {
|
||||
const int dc_bias = intra ? (1 << (QUANT_SHIFT + 1)) / 3 : (1 << (QUANT_SHIFT + 1)) / 6;
|
||||
const unsigned int dc_threshold1 = (1 << (QUANT_SHIFT + 1)) - dc_bias - 1;
|
||||
const unsigned int dc_threshold2 = (dc_threshold1 << 1);
|
||||
|
||||
int level = block[0]*quant_table[0];
|
||||
if (((unsigned)(level + dc_threshold1)) > dc_threshold2) {
|
||||
if (level > 0) {
|
||||
level = (dc_bias + level) >> (QUANT_SHIFT + 1);
|
||||
block[0] = level;
|
||||
} else {
|
||||
level = (dc_bias - level) >> (QUANT_SHIFT + 1);
|
||||
block[0] = -level;
|
||||
}
|
||||
// last_non_zero = i;
|
||||
} else {
|
||||
block[0] = 0;
|
||||
}
|
||||
}
|
||||
last_non_zero = 0;
|
||||
i = 1;
|
||||
} else {
|
||||
last_non_zero = -1;
|
||||
i = 0;
|
||||
}
|
||||
|
||||
for (; i < 16; i++) {
|
||||
const int j = scantable[i];
|
||||
int level = block[j]*quant_table[j];
|
||||
|
||||
// if ( bias+level >= (1 << (QMAT_SHIFT - 3))
|
||||
// || bias-level >= (1 << (QMAT_SHIFT - 3))) {
|
||||
if (((unsigned)(level + threshold1)) > threshold2) {
|
||||
if (level > 0) {
|
||||
level = (bias + level) >> QUANT_SHIFT;
|
||||
block[j] = level;
|
||||
} else {
|
||||
level = (bias - level) >> QUANT_SHIFT;
|
||||
block[j] = -level;
|
||||
}
|
||||
last_non_zero = i;
|
||||
} else {
|
||||
block[j] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
return last_non_zero;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue