* Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
* Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file aacdectab.h
+ * @file
* AAC decoder data
* @author Oded Shimon ( ods15 ods15 dyndns org )
* @author Maxim Gavrilov ( maxim.gavrilov gmail com )
*/
-#ifndef FFMPEG_AACDECTAB_H
-#define FFMPEG_AACDECTAB_H
+#ifndef AVCODEC_AACDECTAB_H
+#define AVCODEC_AACDECTAB_H
+#include "libavutil/audioconvert.h"
#include "aac.h"
#include <stdint.h>
-/* @name swb_offsets
- * Sample offset into the window indicating the beginning of a scalefactor
- * window band
- *
- * scalefactor window band - term for scalefactor bands within a window,
- * given in Table 4.110 to Table 4.128.
- *
- * scalefactor band - a set of spectral coefficients which are scaled by one
- * scalefactor. In case of EIGHT_SHORT_SEQUENCE and grouping a scalefactor band
- * may contain several scalefactor window bands of corresponding frequency. For
- * all other window_sequences scalefactor bands and scalefactor window bands are
- * identical.
- * @{
+/* @name ltp_coef
+ * Table of the LTP coefficients
*/
-
-static const uint16_t swb_offset_1024_96[] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 32, 36, 40, 44, 48, 52, 56, 64,
- 72, 80, 88, 96, 108, 120, 132, 144,
- 156, 172, 188, 212, 240, 276, 320, 384,
- 448, 512, 576, 640, 704, 768, 832, 896,
- 960, 1024
-};
-
-static const uint16_t swb_offset_128_96[] = {
- 0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 128
-};
-
-static const uint16_t swb_offset_1024_64[] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 32, 36, 40, 44, 48, 52, 56, 64,
- 72, 80, 88, 100, 112, 124, 140, 156,
- 172, 192, 216, 240, 268, 304, 344, 384,
- 424, 464, 504, 544, 584, 624, 664, 704,
- 744, 784, 824, 864, 904, 944, 984, 1024
-};
-
-static const uint16_t swb_offset_1024_48[] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 32, 36, 40, 48, 56, 64, 72, 80,
- 88, 96, 108, 120, 132, 144, 160, 176,
- 196, 216, 240, 264, 292, 320, 352, 384,
- 416, 448, 480, 512, 544, 576, 608, 640,
- 672, 704, 736, 768, 800, 832, 864, 896,
- 928, 1024
+static const float ltp_coef[8] = {
+ 0.570829, 0.696616, 0.813004, 0.911304,
+ 0.984900, 1.067894, 1.194601, 1.369533,
};
-static const uint16_t swb_offset_128_48[] = {
- 0, 4, 8, 12, 16, 20, 28, 36,
- 44, 56, 68, 80, 96, 112, 128
-};
-
-static const uint16_t swb_offset_1024_32[] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 32, 36, 40, 48, 56, 64, 72, 80,
- 88, 96, 108, 120, 132, 144, 160, 176,
- 196, 216, 240, 264, 292, 320, 352, 384,
- 416, 448, 480, 512, 544, 576, 608, 640,
- 672, 704, 736, 768, 800, 832, 864, 896,
- 928, 960, 992, 1024
-};
-
-static const uint16_t swb_offset_1024_24[] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 32, 36, 40, 44, 52, 60, 68, 76,
- 84, 92, 100, 108, 116, 124, 136, 148,
- 160, 172, 188, 204, 220, 240, 260, 284,
- 308, 336, 364, 396, 432, 468, 508, 552,
- 600, 652, 704, 768, 832, 896, 960, 1024
+/* @name tns_tmp2_map
+ * Tables of the tmp2[] arrays of LPC coefficients used for TNS.
+ * The suffix _M_N[] indicate the values of coef_compress and coef_res
+ * respectively.
+ * @{
+ */
+static const float tns_tmp2_map_1_3[4] = {
+ 0.00000000, -0.43388373, 0.64278758, 0.34202015,
};
-static const uint16_t swb_offset_128_24[] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 36, 44, 52, 64, 76, 92, 108, 128
+static const float tns_tmp2_map_0_3[8] = {
+ 0.00000000, -0.43388373, -0.78183150, -0.97492790,
+ 0.98480773, 0.86602539, 0.64278758, 0.34202015,
};
-static const uint16_t swb_offset_1024_16[] = {
- 0, 8, 16, 24, 32, 40, 48, 56,
- 64, 72, 80, 88, 100, 112, 124, 136,
- 148, 160, 172, 184, 196, 212, 228, 244,
- 260, 280, 300, 320, 344, 368, 396, 424,
- 456, 492, 532, 572, 616, 664, 716, 772,
- 832, 896, 960, 1024
+static const float tns_tmp2_map_1_4[8] = {
+ 0.00000000, -0.20791170, -0.40673664, -0.58778524,
+ 0.67369562, 0.52643216, 0.36124167, 0.18374951,
};
-static const uint16_t swb_offset_128_16[] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 32, 40, 48, 60, 72, 88, 108, 128
+static const float tns_tmp2_map_0_4[16] = {
+ 0.00000000, -0.20791170, -0.40673664, -0.58778524,
+ -0.74314481, -0.86602539, -0.95105654, -0.99452192,
+ 0.99573416, 0.96182561, 0.89516330, 0.79801720,
+ 0.67369562, 0.52643216, 0.36124167, 0.18374951,
};
-static const uint16_t swb_offset_1024_8[] = {
- 0, 12, 24, 36, 48, 60, 72, 84,
- 96, 108, 120, 132, 144, 156, 172, 188,
- 204, 220, 236, 252, 268, 288, 308, 328,
- 348, 372, 396, 420, 448, 476, 508, 544,
- 580, 620, 664, 712, 764, 820, 880, 944,
- 1024
+static const float * const tns_tmp2_map[4] = {
+ tns_tmp2_map_0_3,
+ tns_tmp2_map_0_4,
+ tns_tmp2_map_1_3,
+ tns_tmp2_map_1_4
};
+// @}
-static const uint16_t swb_offset_128_8[] = {
- 0, 4, 8, 12, 16, 20, 24, 28,
- 36, 44, 52, 60, 72, 88, 108, 128
-};
+static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 0, 0, 0, 0, 0 };
-static const uint16_t *swb_offset_1024[] = {
- swb_offset_1024_96, swb_offset_1024_96, swb_offset_1024_64,
- swb_offset_1024_48, swb_offset_1024_48, swb_offset_1024_32,
- swb_offset_1024_24, swb_offset_1024_24, swb_offset_1024_16,
- swb_offset_1024_16, swb_offset_1024_16, swb_offset_1024_8
+static const uint8_t aac_channel_layout_map[7][5][3] = {
+ { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, },
+ { { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
+ { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
+ { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
+ { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
+ { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
+ { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, },
};
-static const uint16_t *swb_offset_128[] = {
- /* The last entry on the following row is swb_offset_128_64 but is a
- duplicate of swb_offset_128_96. */
- swb_offset_128_96, swb_offset_128_96, swb_offset_128_96,
- swb_offset_128_48, swb_offset_128_48, swb_offset_128_48,
- swb_offset_128_24, swb_offset_128_24, swb_offset_128_16,
- swb_offset_128_16, swb_offset_128_16, swb_offset_128_8
+static const uint64_t aac_channel_layout[8] = {
+ AV_CH_LAYOUT_MONO,
+ AV_CH_LAYOUT_STEREO,
+ AV_CH_LAYOUT_SURROUND,
+ AV_CH_LAYOUT_4POINT0,
+ AV_CH_LAYOUT_5POINT0_BACK,
+ AV_CH_LAYOUT_5POINT1_BACK,
+ AV_CH_LAYOUT_7POINT1_WIDE_BACK,
+ 0,
};
-// @}
-
-#endif /* FFMPEG_AACDECTAB_H */
+#endif /* AVCODEC_AACDECTAB_H */
projects / ffmpeg / blobdiff