libavcodec/ac3tab.c - manifest_repos/ffmpeg - Git at Google

 /*
  * AC-3 tables
  * copyright (c) 2001 Fabrice Bellard
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg 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,
  * 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
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */

 /**
  * @file
  * tables taken directly from the AC-3 spec.
  */

 #include "libavutil/channel_layout.h"
 #include "libavutil/mem_internal.h"

 #include "avcodec.h"
 #include "ac3tab.h"

 /**
  * Possible frame sizes.
  * from ATSC A/52 Table 5.18 Frame Size Code Table.
  */
 const uint16_t ff_ac3_frame_size_tab[38][3] = {
     { 64,   69,   96   },
     { 64,   70,   96   },
     { 80,   87,   120  },
     { 80,   88,   120  },
     { 96,   104,  144  },
     { 96,   105,  144  },
     { 112,  121,  168  },
     { 112,  122,  168  },
     { 128,  139,  192  },
     { 128,  140,  192  },
     { 160,  174,  240  },
     { 160,  175,  240  },
     { 192,  208,  288  },
     { 192,  209,  288  },
     { 224,  243,  336  },
     { 224,  244,  336  },
     { 256,  278,  384  },
     { 256,  279,  384  },
     { 320,  348,  480  },
     { 320,  349,  480  },
     { 384,  417,  576  },
     { 384,  418,  576  },
     { 448,  487,  672  },
     { 448,  488,  672  },
     { 512,  557,  768  },
     { 512,  558,  768  },
     { 640,  696,  960  },
     { 640,  697,  960  },
     { 768,  835,  1152 },
     { 768,  836,  1152 },
     { 896,  975,  1344 },
     { 896,  976,  1344 },
     { 1024, 1114, 1536 },
     { 1024, 1115, 1536 },
     { 1152, 1253, 1728 },
     { 1152, 1254, 1728 },
     { 1280, 1393, 1920 },
     { 1280, 1394, 1920 },
 };

 /**
  * Map audio coding mode (acmod) to number of full-bandwidth channels.
  * from ATSC A/52 Table 5.8 Audio Coding Mode
  */
 const uint8_t ff_ac3_channels_tab[8] = {
     2, 1, 2, 3, 3, 4, 4, 5
 };

 /**
  * Map audio coding mode (acmod) to channel layout mask.
  */
 const uint16_t avpriv_ac3_channel_layout_tab[8] = {
     AV_CH_LAYOUT_STEREO,
     AV_CH_LAYOUT_MONO,
     AV_CH_LAYOUT_STEREO,
     AV_CH_LAYOUT_SURROUND,
     AV_CH_LAYOUT_2_1,
     AV_CH_LAYOUT_4POINT0,
     AV_CH_LAYOUT_2_2,
     AV_CH_LAYOUT_5POINT0
 };

 /**
  * Table to remap channels from AC-3 order to SMPTE order.
  * [channel_mode][lfe][ch]
  */
 const uint8_t ff_ac3_dec_channel_map[8][2][6] = {
     COMMON_CHANNEL_MAP
     { { 0, 1, 2, 3,    }, { 0, 1, 4, 2, 3,   } },
     { { 0, 2, 1, 3, 4, }, { 0, 2, 1, 5, 3, 4 } },
 };

 /* possible frequencies */
 const int ff_ac3_sample_rate_tab[] = { 48000, 44100, 32000, 0 };

 /* possible bitrates */
 const uint16_t ff_ac3_bitrate_tab[19] = {
     32, 40, 48, 56, 64, 80, 96, 112, 128,
     160, 192, 224, 256, 320, 384, 448, 512, 576, 640
 };

 /**
  * Table of bin locations for rematrixing bands
  * reference: Section 7.5.2 Rematrixing : Frequency Band Definitions
  */
 const uint8_t ff_ac3_rematrix_band_tab[5] = { 13, 25, 37, 61, 253 };

 /**
  * Table E2.16 Default Coupling Banding Structure
  */
 const uint8_t ff_eac3_default_cpl_band_struct[18] = {
     0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1
 };

 const uint8_t ff_ac3_log_add_tab[260]= {
 0x40,0x3f,0x3e,0x3d,0x3c,0x3b,0x3a,0x39,0x38,0x37,
 0x36,0x35,0x34,0x34,0x33,0x32,0x31,0x30,0x2f,0x2f,
 0x2e,0x2d,0x2c,0x2c,0x2b,0x2a,0x29,0x29,0x28,0x27,
 0x26,0x26,0x25,0x24,0x24,0x23,0x23,0x22,0x21,0x21,
 0x20,0x20,0x1f,0x1e,0x1e,0x1d,0x1d,0x1c,0x1c,0x1b,
 0x1b,0x1a,0x1a,0x19,0x19,0x18,0x18,0x17,0x17,0x16,
 0x16,0x15,0x15,0x15,0x14,0x14,0x13,0x13,0x13,0x12,
 0x12,0x12,0x11,0x11,0x11,0x10,0x10,0x10,0x0f,0x0f,
 0x0f,0x0e,0x0e,0x0e,0x0d,0x0d,0x0d,0x0d,0x0c,0x0c,
 0x0c,0x0c,0x0b,0x0b,0x0b,0x0b,0x0a,0x0a,0x0a,0x0a,
 0x0a,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x08,
 0x08,0x08,0x07,0x07,0x07,0x07,0x07,0x07,0x06,0x06,
 0x06,0x06,0x06,0x06,0x06,0x06,0x05,0x05,0x05,0x05,
 0x05,0x05,0x05,0x05,0x04,0x04,0x04,0x04,0x04,0x04,
 0x04,0x04,0x04,0x04,0x04,0x03,0x03,0x03,0x03,0x03,
 0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x02,
 0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,
 0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x01,0x01,
 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 };

 const uint16_t ff_ac3_hearing_threshold_tab[AC3_CRITICAL_BANDS][3]= {
 { 0x04d0,0x04f0,0x0580 },
 { 0x04d0,0x04f0,0x0580 },
 { 0x0440,0x0460,0x04b0 },
 { 0x0400,0x0410,0x0450 },
 { 0x03e0,0x03e0,0x0420 },
 { 0x03c0,0x03d0,0x03f0 },
 { 0x03b0,0x03c0,0x03e0 },
 { 0x03b0,0x03b0,0x03d0 },
 { 0x03a0,0x03b0,0x03c0 },
 { 0x03a0,0x03a0,0x03b0 },
 { 0x03a0,0x03a0,0x03b0 },
 { 0x03a0,0x03a0,0x03b0 },
 { 0x03a0,0x03a0,0x03a0 },
 { 0x0390,0x03a0,0x03a0 },
 { 0x0390,0x0390,0x03a0 },
 { 0x0390,0x0390,0x03a0 },
 { 0x0380,0x0390,0x03a0 },
 { 0x0380,0x0380,0x03a0 },
 { 0x0370,0x0380,0x03a0 },
 { 0x0370,0x0380,0x03a0 },
 { 0x0360,0x0370,0x0390 },
 { 0x0360,0x0370,0x0390 },
 { 0x0350,0x0360,0x0390 },
 { 0x0350,0x0360,0x0390 },
 { 0x0340,0x0350,0x0380 },
 { 0x0340,0x0350,0x0380 },
 { 0x0330,0x0340,0x0380 },
 { 0x0320,0x0340,0x0370 },
 { 0x0310,0x0320,0x0360 },
 { 0x0300,0x0310,0x0350 },
 { 0x02f0,0x0300,0x0340 },
 { 0x02f0,0x02f0,0x0330 },
 { 0x02f0,0x02f0,0x0320 },
 { 0x02f0,0x02f0,0x0310 },
 { 0x0300,0x02f0,0x0300 },
 { 0x0310,0x0300,0x02f0 },
 { 0x0340,0x0320,0x02f0 },
 { 0x0390,0x0350,0x02f0 },
 { 0x03e0,0x0390,0x0300 },
 { 0x0420,0x03e0,0x0310 },
 { 0x0460,0x0420,0x0330 },
 { 0x0490,0x0450,0x0350 },
 { 0x04a0,0x04a0,0x03c0 },
 { 0x0460,0x0490,0x0410 },
 { 0x0440,0x0460,0x0470 },
 { 0x0440,0x0440,0x04a0 },
 { 0x0520,0x0480,0x0460 },
 { 0x0800,0x0630,0x0440 },
 { 0x0840,0x0840,0x0450 },
 { 0x0840,0x0840,0x04e0 },
 };

 const uint8_t ff_ac3_bap_tab[64]= {
     0, 1, 1, 1, 1, 1, 2, 2, 3, 3,
     3, 4, 4, 5, 5, 6, 6, 6, 6, 7,
     7, 7, 7, 8, 8, 8, 8, 9, 9, 9,
     9, 10, 10, 10, 10, 11, 11, 11, 11, 12,
     12, 12, 12, 13, 13, 13, 13, 14, 14, 14,
     14, 14, 14, 14, 14, 15, 15, 15, 15, 15,
     15, 15, 15, 15,
 };

 const uint8_t ff_ac3_slow_decay_tab[4]={
     0x0f, 0x11, 0x13, 0x15,
 };

 const uint8_t ff_ac3_fast_decay_tab[4]={
     0x3f, 0x53, 0x67, 0x7b,
 };

 const uint16_t ff_ac3_slow_gain_tab[4]= {
     0x540, 0x4d8, 0x478, 0x410,
 };

 const uint16_t ff_ac3_db_per_bit_tab[4]= {
     0x000, 0x700, 0x900, 0xb00,
 };

 const int16_t ff_ac3_floor_tab[8]= {
     0x2f0, 0x2b0, 0x270, 0x230, 0x1f0, 0x170, 0x0f0, 0xf800,
 };

 const uint16_t ff_ac3_fast_gain_tab[8]= {
     0x080, 0x100, 0x180, 0x200, 0x280, 0x300, 0x380, 0x400,
 };

 const uint64_t ff_eac3_custom_channel_map_locations[16][2] = {
     { 1, AV_CH_FRONT_LEFT },
     { 1, AV_CH_FRONT_CENTER },
     { 1, AV_CH_FRONT_RIGHT },
     { 1, AV_CH_SIDE_LEFT },
     { 1, AV_CH_SIDE_RIGHT },
     { 0, AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER },
     { 0, AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT },
     { 0, AV_CH_BACK_CENTER },
     { 0, AV_CH_TOP_CENTER },
     { 0, AV_CH_SURROUND_DIRECT_LEFT | AV_CH_SURROUND_DIRECT_RIGHT },
     { 0, AV_CH_WIDE_LEFT | AV_CH_WIDE_RIGHT },
     { 0, AV_CH_TOP_FRONT_LEFT | AV_CH_TOP_FRONT_RIGHT},
     { 0, AV_CH_TOP_FRONT_CENTER },
     { 0, AV_CH_TOP_BACK_LEFT | AV_CH_TOP_BACK_RIGHT },
     { 0, AV_CH_LOW_FREQUENCY_2 },
     { 1, AV_CH_LOW_FREQUENCY },
 };
	/*
	* AC-3 tables
	* copyright (c) 2001 Fabrice Bellard
	*
	* This file is part of FFmpeg.
	*
	* FFmpeg 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,
	* 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
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*/

	/**
	* @file
	* tables taken directly from the AC-3 spec.
	*/

	#include "libavutil/channel_layout.h"
	#include "libavutil/mem_internal.h"

	#include "avcodec.h"
	#include "ac3tab.h"

	/**
	* Possible frame sizes.
	* from ATSC A/52 Table 5.18 Frame Size Code Table.
	*/
	const uint16_t ff_ac3_frame_size_tab[38][3] = {
	{ 64, 69, 96 },
	{ 64, 70, 96 },
	{ 80, 87, 120 },
	{ 80, 88, 120 },
	{ 96, 104, 144 },
	{ 96, 105, 144 },
	{ 112, 121, 168 },
	{ 112, 122, 168 },
	{ 128, 139, 192 },
	{ 128, 140, 192 },
	{ 160, 174, 240 },
	{ 160, 175, 240 },
	{ 192, 208, 288 },
	{ 192, 209, 288 },
	{ 224, 243, 336 },
	{ 224, 244, 336 },
	{ 256, 278, 384 },
	{ 256, 279, 384 },
	{ 320, 348, 480 },
	{ 320, 349, 480 },
	{ 384, 417, 576 },
	{ 384, 418, 576 },
	{ 448, 487, 672 },
	{ 448, 488, 672 },
	{ 512, 557, 768 },
	{ 512, 558, 768 },
	{ 640, 696, 960 },
	{ 640, 697, 960 },
	{ 768, 835, 1152 },
	{ 768, 836, 1152 },
	{ 896, 975, 1344 },
	{ 896, 976, 1344 },
	{ 1024, 1114, 1536 },
	{ 1024, 1115, 1536 },
	{ 1152, 1253, 1728 },
	{ 1152, 1254, 1728 },
	{ 1280, 1393, 1920 },
	{ 1280, 1394, 1920 },
	};

	/**
	* Map audio coding mode (acmod) to number of full-bandwidth channels.
	* from ATSC A/52 Table 5.8 Audio Coding Mode
	*/
	const uint8_t ff_ac3_channels_tab[8] = {
	2, 1, 2, 3, 3, 4, 4, 5
	};

	/**
	* Map audio coding mode (acmod) to channel layout mask.
	*/
	const uint16_t avpriv_ac3_channel_layout_tab[8] = {
	AV_CH_LAYOUT_STEREO,
	AV_CH_LAYOUT_MONO,
	AV_CH_LAYOUT_STEREO,
	AV_CH_LAYOUT_SURROUND,
	AV_CH_LAYOUT_2_1,
	AV_CH_LAYOUT_4POINT0,
	AV_CH_LAYOUT_2_2,
	AV_CH_LAYOUT_5POINT0
	};

	/**
	* Table to remap channels from AC-3 order to SMPTE order.
	* [channel_mode][lfe][ch]
	*/
	const uint8_t ff_ac3_dec_channel_map[8][2][6] = {
	COMMON_CHANNEL_MAP
	{ { 0, 1, 2, 3, }, { 0, 1, 4, 2, 3, } },
	{ { 0, 2, 1, 3, 4, }, { 0, 2, 1, 5, 3, 4 } },
	};

	/* possible frequencies */
	const int ff_ac3_sample_rate_tab[] = { 48000, 44100, 32000, 0 };

	/* possible bitrates */
	const uint16_t ff_ac3_bitrate_tab[19] = {
	32, 40, 48, 56, 64, 80, 96, 112, 128,
	160, 192, 224, 256, 320, 384, 448, 512, 576, 640
	};

	/**
	* Table of bin locations for rematrixing bands
	* reference: Section 7.5.2 Rematrixing : Frequency Band Definitions
	*/
	const uint8_t ff_ac3_rematrix_band_tab[5] = { 13, 25, 37, 61, 253 };

	/**
	* Table E2.16 Default Coupling Banding Structure
	*/
	const uint8_t ff_eac3_default_cpl_band_struct[18] = {
	0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1
	};

	const uint8_t ff_ac3_log_add_tab[260]= {
	0x40,0x3f,0x3e,0x3d,0x3c,0x3b,0x3a,0x39,0x38,0x37,
	0x36,0x35,0x34,0x34,0x33,0x32,0x31,0x30,0x2f,0x2f,
	0x2e,0x2d,0x2c,0x2c,0x2b,0x2a,0x29,0x29,0x28,0x27,
	0x26,0x26,0x25,0x24,0x24,0x23,0x23,0x22,0x21,0x21,
	0x20,0x20,0x1f,0x1e,0x1e,0x1d,0x1d,0x1c,0x1c,0x1b,
	0x1b,0x1a,0x1a,0x19,0x19,0x18,0x18,0x17,0x17,0x16,
	0x16,0x15,0x15,0x15,0x14,0x14,0x13,0x13,0x13,0x12,
	0x12,0x12,0x11,0x11,0x11,0x10,0x10,0x10,0x0f,0x0f,
	0x0f,0x0e,0x0e,0x0e,0x0d,0x0d,0x0d,0x0d,0x0c,0x0c,
	0x0c,0x0c,0x0b,0x0b,0x0b,0x0b,0x0a,0x0a,0x0a,0x0a,
	0x0a,0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08,0x08,
	0x08,0x08,0x07,0x07,0x07,0x07,0x07,0x07,0x06,0x06,
	0x06,0x06,0x06,0x06,0x06,0x06,0x05,0x05,0x05,0x05,
	0x05,0x05,0x05,0x05,0x04,0x04,0x04,0x04,0x04,0x04,
	0x04,0x04,0x04,0x04,0x04,0x03,0x03,0x03,0x03,0x03,
	0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x02,
	0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,
	0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x01,0x01,
	0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
	0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
	0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
	};

	const uint16_t ff_ac3_hearing_threshold_tab[AC3_CRITICAL_BANDS][3]= {
	{ 0x04d0,0x04f0,0x0580 },
	{ 0x04d0,0x04f0,0x0580 },
	{ 0x0440,0x0460,0x04b0 },
	{ 0x0400,0x0410,0x0450 },
	{ 0x03e0,0x03e0,0x0420 },
	{ 0x03c0,0x03d0,0x03f0 },
	{ 0x03b0,0x03c0,0x03e0 },
	{ 0x03b0,0x03b0,0x03d0 },
	{ 0x03a0,0x03b0,0x03c0 },
	{ 0x03a0,0x03a0,0x03b0 },
	{ 0x03a0,0x03a0,0x03b0 },
	{ 0x03a0,0x03a0,0x03b0 },
	{ 0x03a0,0x03a0,0x03a0 },
	{ 0x0390,0x03a0,0x03a0 },
	{ 0x0390,0x0390,0x03a0 },
	{ 0x0390,0x0390,0x03a0 },
	{ 0x0380,0x0390,0x03a0 },
	{ 0x0380,0x0380,0x03a0 },
	{ 0x0370,0x0380,0x03a0 },
	{ 0x0370,0x0380,0x03a0 },
	{ 0x0360,0x0370,0x0390 },
	{ 0x0360,0x0370,0x0390 },
	{ 0x0350,0x0360,0x0390 },
	{ 0x0350,0x0360,0x0390 },
	{ 0x0340,0x0350,0x0380 },
	{ 0x0340,0x0350,0x0380 },
	{ 0x0330,0x0340,0x0380 },
	{ 0x0320,0x0340,0x0370 },
	{ 0x0310,0x0320,0x0360 },
	{ 0x0300,0x0310,0x0350 },
	{ 0x02f0,0x0300,0x0340 },
	{ 0x02f0,0x02f0,0x0330 },
	{ 0x02f0,0x02f0,0x0320 },
	{ 0x02f0,0x02f0,0x0310 },
	{ 0x0300,0x02f0,0x0300 },
	{ 0x0310,0x0300,0x02f0 },
	{ 0x0340,0x0320,0x02f0 },
	{ 0x0390,0x0350,0x02f0 },
	{ 0x03e0,0x0390,0x0300 },
	{ 0x0420,0x03e0,0x0310 },
	{ 0x0460,0x0420,0x0330 },
	{ 0x0490,0x0450,0x0350 },
	{ 0x04a0,0x04a0,0x03c0 },
	{ 0x0460,0x0490,0x0410 },
	{ 0x0440,0x0460,0x0470 },
	{ 0x0440,0x0440,0x04a0 },
	{ 0x0520,0x0480,0x0460 },
	{ 0x0800,0x0630,0x0440 },
	{ 0x0840,0x0840,0x0450 },
	{ 0x0840,0x0840,0x04e0 },
	};

	const uint8_t ff_ac3_bap_tab[64]= {
	0, 1, 1, 1, 1, 1, 2, 2, 3, 3,
	3, 4, 4, 5, 5, 6, 6, 6, 6, 7,
	7, 7, 7, 8, 8, 8, 8, 9, 9, 9,
	9, 10, 10, 10, 10, 11, 11, 11, 11, 12,
	12, 12, 12, 13, 13, 13, 13, 14, 14, 14,
	14, 14, 14, 14, 14, 15, 15, 15, 15, 15,
	15, 15, 15, 15,
	};

	const uint8_t ff_ac3_slow_decay_tab[4]={
	0x0f, 0x11, 0x13, 0x15,
	};

	const uint8_t ff_ac3_fast_decay_tab[4]={
	0x3f, 0x53, 0x67, 0x7b,
	};

	const uint16_t ff_ac3_slow_gain_tab[4]= {
	0x540, 0x4d8, 0x478, 0x410,
	};

	const uint16_t ff_ac3_db_per_bit_tab[4]= {
	0x000, 0x700, 0x900, 0xb00,
	};

	const int16_t ff_ac3_floor_tab[8]= {
	0x2f0, 0x2b0, 0x270, 0x230, 0x1f0, 0x170, 0x0f0, 0xf800,
	};

	const uint16_t ff_ac3_fast_gain_tab[8]= {
	0x080, 0x100, 0x180, 0x200, 0x280, 0x300, 0x380, 0x400,
	};

	const uint64_t ff_eac3_custom_channel_map_locations[16][2] = {
	{ 1, AV_CH_FRONT_LEFT },
	{ 1, AV_CH_FRONT_CENTER },
	{ 1, AV_CH_FRONT_RIGHT },
	{ 1, AV_CH_SIDE_LEFT },
	{ 1, AV_CH_SIDE_RIGHT },
	{ 0, AV_CH_FRONT_LEFT_OF_CENTER \| AV_CH_FRONT_RIGHT_OF_CENTER },
	{ 0, AV_CH_BACK_LEFT \| AV_CH_BACK_RIGHT },
	{ 0, AV_CH_BACK_CENTER },
	{ 0, AV_CH_TOP_CENTER },
	{ 0, AV_CH_SURROUND_DIRECT_LEFT \| AV_CH_SURROUND_DIRECT_RIGHT },
	{ 0, AV_CH_WIDE_LEFT \| AV_CH_WIDE_RIGHT },
	{ 0, AV_CH_TOP_FRONT_LEFT \| AV_CH_TOP_FRONT_RIGHT},
	{ 0, AV_CH_TOP_FRONT_CENTER },
	{ 0, AV_CH_TOP_BACK_LEFT \| AV_CH_TOP_BACK_RIGHT },
	{ 0, AV_CH_LOW_FREQUENCY_2 },
	{ 1, AV_CH_LOW_FREQUENCY },
	};