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ffmpeg.wasm-core
Commit 588361dd authored by Michael Niedermayer's avatar Michael Niedermayer
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avcodec/dca: move remaining tables to dcadata 

Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent 6c91afe4
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Showing with 100 additions and 92 deletions
libavcodec/dcadata.c
View file @ 588361dd
......@@ -22,8 +22,10 @@
#include <stdint.h>
#include "libavutil/channel_layout.h"
#include "libavutil/mem.h"
#include "dca.h"
#include "dcadata.h"
/* Generic tables */
......@@ -7662,6 +7664,95 @@ const float ff_dca_default_coeffs[10][6][2] = {
* where Ch(n) represents the subband samples in the (n)th audio channel.
*/
const uint32_t ff_dca_map_xxch_to_native[28] = {
AV_CH_FRONT_CENTER,
AV_CH_FRONT_LEFT,
AV_CH_FRONT_RIGHT,
AV_CH_SIDE_LEFT,
AV_CH_SIDE_RIGHT,
AV_CH_LOW_FREQUENCY,
AV_CH_BACK_CENTER,
AV_CH_BACK_LEFT,
AV_CH_BACK_RIGHT,
AV_CH_SIDE_LEFT, /* side surround left -- dup sur side L */
AV_CH_SIDE_RIGHT, /* side surround right -- dup sur side R */
AV_CH_FRONT_LEFT_OF_CENTER,
AV_CH_FRONT_RIGHT_OF_CENTER,
AV_CH_TOP_FRONT_LEFT,
AV_CH_TOP_FRONT_CENTER,
AV_CH_TOP_FRONT_RIGHT,
AV_CH_LOW_FREQUENCY, /* lfe2 -- duplicate lfe1 position */
AV_CH_FRONT_LEFT_OF_CENTER, /* side front left -- dup front cntr L */
AV_CH_FRONT_RIGHT_OF_CENTER,/* side front right -- dup front cntr R */
AV_CH_TOP_CENTER, /* overhead */
AV_CH_TOP_FRONT_LEFT, /* side high left -- dup */
AV_CH_TOP_FRONT_RIGHT, /* side high right -- dup */
AV_CH_TOP_BACK_CENTER,
AV_CH_TOP_BACK_LEFT,
AV_CH_TOP_BACK_RIGHT,
AV_CH_BACK_CENTER, /* rear low center -- dup */
AV_CH_BACK_LEFT, /* rear low left -- dup */
AV_CH_BACK_RIGHT /* read low right -- dup */
};
/* -1 are reserved or unknown */
const int ff_dca_ext_audio_descr_mask[8] = {
DCA_EXT_XCH,
-1,
DCA_EXT_X96,
DCA_EXT_XCH | DCA_EXT_X96,
-1,
-1,
DCA_EXT_XXCH,
-1,
};
/* Tables for mapping dts channel configurations to libavcodec multichannel api.
* Some compromises have been made for special configurations. Most configurations
* are never used so complete accuracy is not needed.
*
* L = left, R = right, C = center, S = surround, F = front, R = rear, T = total, OV = overhead.
* S -> side, when both rear and back are configured move one of them to the side channel
* OV -> center back
* All 2 channel configurations -> AV_CH_LAYOUT_STEREO
*/
const uint64_t ff_dca_core_channel_layout[16] = {
AV_CH_FRONT_CENTER, ///< 1, A
AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono)
AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo)
AV_CH_LAYOUT_STEREO, ///< 2, (L + R) + (L - R) (sum-difference)
AV_CH_LAYOUT_STEREO, ///< 2, LT + RT (left and right total)
AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER, ///< 3, C + L + R
AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER, ///< 3, L + R + S
AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 4, C + L + R + S
AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 4, L + R + SL + SR
AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT |
AV_CH_SIDE_RIGHT, ///< 5, C + L + R + SL + SR
AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR
AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT |
AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 6, C + L + R + LR + RR + OV
AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER |
AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 6, CF + CR + LF + RF + LR + RR
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT, ///< 8, CL + C + CR + L + R + SL + S + SR
};
const int8_t ff_dca_lfe_index[16] = {
1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1, 3, 2, 3
};
......
libavcodec/dcadata.h
View file @ 588361dd
......@@ -52,6 +52,11 @@ extern const uint16_t ff_dca_dmixtable[242];
extern const float ff_dca_default_coeffs[10][6][2];
extern const uint32_t ff_dca_map_xxch_to_native[28];
extern const int ff_dca_ext_audio_descr_mask[8];
extern const uint64_t ff_dca_core_channel_layout[16];
extern const int8_t ff_dca_lfe_index[16];
extern const int8_t ff_dca_channel_reorder_lfe[16][9];
......
libavcodec/dcadec.c
View file @ 588361dd
......@@ -108,94 +108,6 @@ enum DCAXxchSpeakerMask {
#define DCA_NSYNCAUX 0x9A1105A0
static const uint32_t map_xxch_to_native[28] = {
AV_CH_FRONT_CENTER,
AV_CH_FRONT_LEFT,
AV_CH_FRONT_RIGHT,
AV_CH_SIDE_LEFT,
AV_CH_SIDE_RIGHT,
AV_CH_LOW_FREQUENCY,
AV_CH_BACK_CENTER,
AV_CH_BACK_LEFT,
AV_CH_BACK_RIGHT,
AV_CH_SIDE_LEFT, /* side surround left -- dup sur side L */
AV_CH_SIDE_RIGHT, /* side surround right -- dup sur side R */
AV_CH_FRONT_LEFT_OF_CENTER,
AV_CH_FRONT_RIGHT_OF_CENTER,
AV_CH_TOP_FRONT_LEFT,
AV_CH_TOP_FRONT_CENTER,
AV_CH_TOP_FRONT_RIGHT,
AV_CH_LOW_FREQUENCY, /* lfe2 -- duplicate lfe1 position */
AV_CH_FRONT_LEFT_OF_CENTER, /* side front left -- dup front cntr L */
AV_CH_FRONT_RIGHT_OF_CENTER,/* side front right -- dup front cntr R */
AV_CH_TOP_CENTER, /* overhead */
AV_CH_TOP_FRONT_LEFT, /* side high left -- dup */
AV_CH_TOP_FRONT_RIGHT, /* side high right -- dup */
AV_CH_TOP_BACK_CENTER,
AV_CH_TOP_BACK_LEFT,
AV_CH_TOP_BACK_RIGHT,
AV_CH_BACK_CENTER, /* rear low center -- dup */
AV_CH_BACK_LEFT, /* rear low left -- dup */
AV_CH_BACK_RIGHT /* read low right -- dup */
};
/* -1 are reserved or unknown */
static const int dca_ext_audio_descr_mask[] = {
DCA_EXT_XCH,
-1,
DCA_EXT_X96,
DCA_EXT_XCH | DCA_EXT_X96,
-1,
-1,
DCA_EXT_XXCH,
-1,
};
/* Tables for mapping dts channel configurations to libavcodec multichannel api.
* Some compromises have been made for special configurations. Most configurations
* are never used so complete accuracy is not needed.
*
* L = left, R = right, C = center, S = surround, F = front, R = rear, T = total, OV = overhead.
* S -> side, when both rear and back are configured move one of them to the side channel
* OV -> center back
* All 2 channel configurations -> AV_CH_LAYOUT_STEREO
*/
static const uint64_t dca_core_channel_layout[] = {
AV_CH_FRONT_CENTER, ///< 1, A
AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono)
AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo)
AV_CH_LAYOUT_STEREO, ///< 2, (L + R) + (L - R) (sum-difference)
AV_CH_LAYOUT_STEREO, ///< 2, LT + RT (left and right total)
AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER, ///< 3, C + L + R
AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER, ///< 3, L + R + S
AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 4, C + L + R + S
AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 4, L + R + SL + SR
AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT |
AV_CH_SIDE_RIGHT, ///< 5, C + L + R + SL + SR
AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR
AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT |
AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 6, C + L + R + LR + RR + OV
AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER |
AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 6, CF + CR + LF + RF + LR + RR
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2
AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT, ///< 8, CL + C + CR + L + R + SL + S + SR
};
/** Bit allocation */
typedef struct BitAlloc {
......@@ -1505,7 +1417,7 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data,
}
if (s->ext_coding)
s->core_ext_mask = dca_ext_audio_descr_mask[s->ext_descr];
s->core_ext_mask = ff_dca_ext_audio_descr_mask[s->ext_descr];
else
s->core_ext_mask = 0;
......@@ -1620,7 +1532,7 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data,
< num_core_channels + !!s->lfe + s->xxch_chset_nch[0]))
{ /* xxx should also do MA extensions */
if (s->amode < 16) {
avctx->channel_layout = dca_core_channel_layout[s->amode];
avctx->channel_layout = ff_dca_core_channel_layout[s->amode];
if (s->prim_channels + !!s->lfe > 2 &&
avctx->request_channel_layout == AV_CH_LAYOUT_STEREO) {
......@@ -1714,7 +1626,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
channel_layout = 0;
for (i = 0; i < s->xxch_nbits_spk_mask; ++i) {
if (channel_mask & (1 << i)) {
channel_layout |= map_xxch_to_native[i];
channel_layout |= ff_dca_map_xxch_to_native[i];
}
}
......@@ -1735,7 +1647,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
: s->xxch_core_spkmask;
for (i = 0; i < s->xxch_nbits_spk_mask; i++) {
if (mask & ~(DCA_XXCH_LFE1 | DCA_XXCH_LFE2) & (1 << i)) {
lavc = map_xxch_to_native[i];
lavc = ff_dca_map_xxch_to_native[i];
posn = av_popcount(channel_layout & (lavc - 1));
s->xxch_order_tab[j++] = posn;
}
......
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