forked from FFmpeg/FFmpeg
Move TNS and swb_offset tables from aacdectab.h to aactab.c so that they can be
shared with the AAC encoder. Originally committed as revision 19174 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Converse
parent
70f99f8dd2
commit
85e9296f41
4 changed files with 150 additions and 143 deletions
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@ -565,16 +565,16 @@ static int decode_ics_info(AACContext * ac, IndividualChannelStream * ics, GetBi
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}
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}
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ics->num_windows = 8;
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ics->swb_offset = swb_offset_128[ac->m4ac.sampling_index];
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ics->swb_offset = ff_swb_offset_128[ac->m4ac.sampling_index];
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ics->num_swb = ff_aac_num_swb_128[ac->m4ac.sampling_index];
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ics->tns_max_bands = tns_max_bands_128[ac->m4ac.sampling_index];
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ics->tns_max_bands = ff_tns_max_bands_128[ac->m4ac.sampling_index];
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ics->predictor_present = 0;
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} else {
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ics->max_sfb = get_bits(gb, 6);
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ics->num_windows = 1;
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ics->swb_offset = swb_offset_1024[ac->m4ac.sampling_index];
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ics->swb_offset = ff_swb_offset_1024[ac->m4ac.sampling_index];
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ics->num_swb = ff_aac_num_swb_1024[ac->m4ac.sampling_index];
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ics->tns_max_bands = tns_max_bands_1024[ac->m4ac.sampling_index];
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ics->tns_max_bands = ff_tns_max_bands_1024[ac->m4ac.sampling_index];
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ics->predictor_present = get_bits1(gb);
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ics->predictor_reset_group = 0;
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if (ics->predictor_present) {
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@ -34,145 +34,6 @@
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#include <stdint.h>
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/* @name swb_offsets
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* Sample offset into the window indicating the beginning of a scalefactor
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* window band
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*
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* scalefactor window band - term for scalefactor bands within a window,
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* given in Table 4.110 to Table 4.128.
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*
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* scalefactor band - a set of spectral coefficients which are scaled by one
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* scalefactor. In case of EIGHT_SHORT_SEQUENCE and grouping a scalefactor band
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* may contain several scalefactor window bands of corresponding frequency. For
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* all other window_sequences scalefactor bands and scalefactor window bands are
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* identical.
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* @{
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*/
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static const uint16_t swb_offset_1024_96[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 44, 48, 52, 56, 64,
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72, 80, 88, 96, 108, 120, 132, 144,
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156, 172, 188, 212, 240, 276, 320, 384,
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448, 512, 576, 640, 704, 768, 832, 896,
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960, 1024
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};
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static const uint16_t swb_offset_128_96[] = {
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0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 128
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};
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static const uint16_t swb_offset_1024_64[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 44, 48, 52, 56, 64,
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72, 80, 88, 100, 112, 124, 140, 156,
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172, 192, 216, 240, 268, 304, 344, 384,
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424, 464, 504, 544, 584, 624, 664, 704,
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744, 784, 824, 864, 904, 944, 984, 1024
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};
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static const uint16_t swb_offset_1024_48[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 48, 56, 64, 72, 80,
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88, 96, 108, 120, 132, 144, 160, 176,
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196, 216, 240, 264, 292, 320, 352, 384,
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416, 448, 480, 512, 544, 576, 608, 640,
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672, 704, 736, 768, 800, 832, 864, 896,
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928, 1024
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};
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static const uint16_t swb_offset_128_48[] = {
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0, 4, 8, 12, 16, 20, 28, 36,
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44, 56, 68, 80, 96, 112, 128
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};
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static const uint16_t swb_offset_1024_32[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 48, 56, 64, 72, 80,
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88, 96, 108, 120, 132, 144, 160, 176,
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196, 216, 240, 264, 292, 320, 352, 384,
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416, 448, 480, 512, 544, 576, 608, 640,
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672, 704, 736, 768, 800, 832, 864, 896,
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928, 960, 992, 1024
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};
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static const uint16_t swb_offset_1024_24[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 44, 52, 60, 68, 76,
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84, 92, 100, 108, 116, 124, 136, 148,
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160, 172, 188, 204, 220, 240, 260, 284,
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308, 336, 364, 396, 432, 468, 508, 552,
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600, 652, 704, 768, 832, 896, 960, 1024
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};
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static const uint16_t swb_offset_128_24[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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36, 44, 52, 64, 76, 92, 108, 128
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};
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static const uint16_t swb_offset_1024_16[] = {
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0, 8, 16, 24, 32, 40, 48, 56,
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64, 72, 80, 88, 100, 112, 124, 136,
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148, 160, 172, 184, 196, 212, 228, 244,
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260, 280, 300, 320, 344, 368, 396, 424,
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456, 492, 532, 572, 616, 664, 716, 772,
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832, 896, 960, 1024
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};
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static const uint16_t swb_offset_128_16[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 40, 48, 60, 72, 88, 108, 128
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};
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static const uint16_t swb_offset_1024_8[] = {
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0, 12, 24, 36, 48, 60, 72, 84,
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96, 108, 120, 132, 144, 156, 172, 188,
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204, 220, 236, 252, 268, 288, 308, 328,
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348, 372, 396, 420, 448, 476, 508, 544,
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580, 620, 664, 712, 764, 820, 880, 944,
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1024
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};
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static const uint16_t swb_offset_128_8[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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36, 44, 52, 60, 72, 88, 108, 128
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};
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static const uint16_t *swb_offset_1024[] = {
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swb_offset_1024_96, swb_offset_1024_96, swb_offset_1024_64,
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swb_offset_1024_48, swb_offset_1024_48, swb_offset_1024_32,
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swb_offset_1024_24, swb_offset_1024_24, swb_offset_1024_16,
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swb_offset_1024_16, swb_offset_1024_16, swb_offset_1024_8,
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swb_offset_1024_8
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};
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static const uint16_t *swb_offset_128[] = {
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/* The last entry on the following row is swb_offset_128_64 but is a
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duplicate of swb_offset_128_96. */
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swb_offset_128_96, swb_offset_128_96, swb_offset_128_96,
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swb_offset_128_48, swb_offset_128_48, swb_offset_128_48,
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swb_offset_128_24, swb_offset_128_24, swb_offset_128_16,
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swb_offset_128_16, swb_offset_128_16, swb_offset_128_8,
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swb_offset_128_8
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};
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// @}
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/* @name tns_max_bands
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* The maximum number of scalefactor bands on which TNS can operate for the long
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* and short transforms respectively. The index to these tables is related to
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* the sample rate of the audio.
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* @{
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*/
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static const uint8_t tns_max_bands_1024[] = {
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31, 31, 34, 40, 42, 51, 46, 46, 42, 42, 42, 39, 39
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};
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static const uint8_t tns_max_bands_128[] = {
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9, 9, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14
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};
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// @}
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/* @name tns_tmp2_map
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* Tables of the tmp2[] arrays of LPC coefficients used for TNS.
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* The suffix _M_N[] indicate the values of coef_compress and coef_res
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@ -899,6 +899,146 @@ const float * const ff_aac_codebook_vectors[] = {
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codebook_vector8, codebook_vector10,
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};
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/* @name swb_offsets
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* Sample offset into the window indicating the beginning of a scalefactor
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* window band
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*
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* scalefactor window band - term for scalefactor bands within a window,
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* given in Table 4.110 to Table 4.128.
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*
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* scalefactor band - a set of spectral coefficients which are scaled by one
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* scalefactor. In case of EIGHT_SHORT_SEQUENCE and grouping a scalefactor band
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* may contain several scalefactor window bands of corresponding frequency. For
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* all other window_sequences scalefactor bands and scalefactor window bands are
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* identical.
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* @{
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*/
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static const uint16_t swb_offset_1024_96[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 44, 48, 52, 56, 64,
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72, 80, 88, 96, 108, 120, 132, 144,
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156, 172, 188, 212, 240, 276, 320, 384,
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448, 512, 576, 640, 704, 768, 832, 896,
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960, 1024
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};
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static const uint16_t swb_offset_128_96[] = {
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0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 128
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};
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static const uint16_t swb_offset_1024_64[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 44, 48, 52, 56, 64,
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72, 80, 88, 100, 112, 124, 140, 156,
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172, 192, 216, 240, 268, 304, 344, 384,
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424, 464, 504, 544, 584, 624, 664, 704,
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744, 784, 824, 864, 904, 944, 984, 1024
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};
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static const uint16_t swb_offset_1024_48[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 48, 56, 64, 72, 80,
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88, 96, 108, 120, 132, 144, 160, 176,
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196, 216, 240, 264, 292, 320, 352, 384,
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416, 448, 480, 512, 544, 576, 608, 640,
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672, 704, 736, 768, 800, 832, 864, 896,
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928, 1024
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};
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static const uint16_t swb_offset_128_48[] = {
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0, 4, 8, 12, 16, 20, 28, 36,
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44, 56, 68, 80, 96, 112, 128
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};
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static const uint16_t swb_offset_1024_32[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 48, 56, 64, 72, 80,
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88, 96, 108, 120, 132, 144, 160, 176,
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196, 216, 240, 264, 292, 320, 352, 384,
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416, 448, 480, 512, 544, 576, 608, 640,
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672, 704, 736, 768, 800, 832, 864, 896,
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928, 960, 992, 1024
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};
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static const uint16_t swb_offset_1024_24[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 36, 40, 44, 52, 60, 68, 76,
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84, 92, 100, 108, 116, 124, 136, 148,
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160, 172, 188, 204, 220, 240, 260, 284,
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308, 336, 364, 396, 432, 468, 508, 552,
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600, 652, 704, 768, 832, 896, 960, 1024
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};
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static const uint16_t swb_offset_128_24[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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36, 44, 52, 64, 76, 92, 108, 128
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};
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static const uint16_t swb_offset_1024_16[] = {
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0, 8, 16, 24, 32, 40, 48, 56,
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64, 72, 80, 88, 100, 112, 124, 136,
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148, 160, 172, 184, 196, 212, 228, 244,
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260, 280, 300, 320, 344, 368, 396, 424,
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456, 492, 532, 572, 616, 664, 716, 772,
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832, 896, 960, 1024
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};
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static const uint16_t swb_offset_128_16[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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32, 40, 48, 60, 72, 88, 108, 128
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};
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static const uint16_t swb_offset_1024_8[] = {
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0, 12, 24, 36, 48, 60, 72, 84,
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96, 108, 120, 132, 144, 156, 172, 188,
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204, 220, 236, 252, 268, 288, 308, 328,
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348, 372, 396, 420, 448, 476, 508, 544,
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580, 620, 664, 712, 764, 820, 880, 944,
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1024
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};
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static const uint16_t swb_offset_128_8[] = {
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0, 4, 8, 12, 16, 20, 24, 28,
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36, 44, 52, 60, 72, 88, 108, 128
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};
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const uint16_t *ff_swb_offset_1024[] = {
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swb_offset_1024_96, swb_offset_1024_96, swb_offset_1024_64,
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swb_offset_1024_48, swb_offset_1024_48, swb_offset_1024_32,
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swb_offset_1024_24, swb_offset_1024_24, swb_offset_1024_16,
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swb_offset_1024_16, swb_offset_1024_16, swb_offset_1024_8,
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swb_offset_1024_8
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};
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const uint16_t *ff_swb_offset_128[] = {
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/* The last entry on the following row is swb_offset_128_64 but is a
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duplicate of swb_offset_128_96. */
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swb_offset_128_96, swb_offset_128_96, swb_offset_128_96,
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swb_offset_128_48, swb_offset_128_48, swb_offset_128_48,
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swb_offset_128_24, swb_offset_128_24, swb_offset_128_16,
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swb_offset_128_16, swb_offset_128_16, swb_offset_128_8,
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swb_offset_128_8
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};
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// @}
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/* @name ff_tns_max_bands
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* The maximum number of scalefactor bands on which TNS can operate for the long
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* and short transforms respectively. The index to these tables is related to
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* the sample rate of the audio.
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* @{
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*/
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const uint8_t ff_tns_max_bands_1024[] = {
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31, 31, 34, 40, 42, 51, 46, 46, 42, 42, 42, 39, 39
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};
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const uint8_t ff_tns_max_bands_128[] = {
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9, 9, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14
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};
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// @}
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#if CONFIG_HARDCODED_TABLES
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/**
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@ -65,6 +65,12 @@ extern const uint16_t ff_aac_spectral_sizes[11];
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extern const float *ff_aac_codebook_vectors[];
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extern const uint16_t *ff_swb_offset_1024[13];
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extern const uint16_t *ff_swb_offset_128 [13];
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extern const uint8_t ff_tns_max_bands_1024[13];
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extern const uint8_t ff_tns_max_bands_128 [13];
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#if CONFIG_HARDCODED_TABLES
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extern const float ff_aac_pow2sf_tab[428];
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#else
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Add table
Reference in a new issue