FFmpeg
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#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/crc.h"
#include "libavutil/float_dsp.h"
#include "libavutil/libm.h"
#include "avcodec.h"
#include "get_bits.h"
#include "internal.h"
#include "mathops.h"
#include "mpegaudiodsp.h"
#include "mpegaudio.h"
#include "mpegaudiodecheader.h"
#include "mpegaudiodata.h"
#include "mpegaudiodectab.h"
#include "mpegaudio_tablegen.h"
Go to the source code of this file.
Data Structures | |
struct | GranuleDef |
struct | MPADecodeContext |
Macros | |
#define | BACKSTEP_SIZE 512 |
#define | EXTRABYTES 24 |
#define | LAST_BUF_SIZE 2 * BACKSTEP_SIZE + EXTRABYTES |
#define | HEADER_SIZE 4 |
#define | SCALE_GEN(v) { FIXR_OLD(1.0 * (v)), FIXR_OLD(0.7937005259 * (v)), FIXR_OLD(0.6299605249 * (v)) } |
#define | C3 FIXHR(0.86602540378443864676/2) |
#define | C4 FIXHR(0.70710678118654752439/2) |
#define | C5 FIXHR(0.51763809020504152469/2) |
#define | C6 FIXHR(1.93185165257813657349/4) |
#define | SPLIT(dst, sf, n) |
#define | READ_FLIP_SIGN(dst, src) |
#define | ISQRT2 FIXR(0.70710678118654752440) |
#define | AA(j) |
Variables | |
static VLC | huff_vlc [16] |
static VLC_TYPE | huff_vlc_tables [0+128+128+128+130+128+154+166+142+204+190+170+542+460+662+414][2] |
static const int | huff_vlc_tables_sizes [16] |
static VLC | huff_quad_vlc [2] |
static VLC_TYPE | huff_quad_vlc_tables [128+16][2] |
static const int | huff_quad_vlc_tables_sizes [2] = { 128, 16 } |
static uint16_t | band_index_long [9][23] |
static INTFLOAT | is_table [2][16] |
static INTFLOAT | is_table_lsf [2][2][16] |
static INTFLOAT | csa_table [8][4] |
static int16_t | division_tab3 [1<< 6] |
static int16_t | division_tab5 [1<< 8] |
static int16_t | division_tab9 [1<< 11] |
static int16_t *const | division_tabs [4] |
static uint16_t | scale_factor_modshift [64] |
static int32_t | scale_factor_mult [15][3] |
static const int32_t | scale_factor_mult2 [3][3] |
MPEG Audio decoder
Definition in file mpegaudiodec_template.c.
#define BACKSTEP_SIZE 512 |
Definition at line 47 of file mpegaudiodec_template.c.
#define EXTRABYTES 24 |
Definition at line 48 of file mpegaudiodec_template.c.
#define LAST_BUF_SIZE 2 * BACKSTEP_SIZE + EXTRABYTES |
Definition at line 49 of file mpegaudiodec_template.c.
#define HEADER_SIZE 4 |
Definition at line 94 of file mpegaudiodec_template.c.
#define SCALE_GEN | ( | v | ) | { FIXR_OLD(1.0 * (v)), FIXR_OLD(0.7937005259 * (v)), FIXR_OLD(0.6299605249 * (v)) } |
Definition at line 134 of file mpegaudiodec_template.c.
#define C3 FIXHR(0.86602540378443864676/2) |
Definition at line 455 of file mpegaudiodec_template.c.
#define C4 FIXHR(0.70710678118654752439/2) |
Definition at line 456 of file mpegaudiodec_template.c.
#define C5 FIXHR(0.51763809020504152469/2) |
Definition at line 457 of file mpegaudiodec_template.c.
#define C6 FIXHR(1.93185165257813657349/4) |
Definition at line 458 of file mpegaudiodec_template.c.
#define SPLIT | ( | dst, | |
sf, | |||
n | |||
) |
Definition at line 756 of file mpegaudiodec_template.c.
#define READ_FLIP_SIGN | ( | dst, | |
src | |||
) |
Definition at line 848 of file mpegaudiodec_template.c.
#define ISQRT2 FIXR(0.70710678118654752440) |
Definition at line 1037 of file mpegaudiodec_template.c.
#define AA | ( | j | ) |
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Convert region offsets to region sizes and truncate size to big_values.
Definition at line 147 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 158 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 176 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 186 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
Definition at line 213 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer1(), and mp_decode_layer2().
Definition at line 227 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer2().
Definition at line 243 of file mpegaudiodec_template.c.
Referenced by huffman_decode().
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Definition at line 262 of file mpegaudiodec_template.c.
Referenced by decode_init().
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Definition at line 422 of file mpegaudiodec_template.c.
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Definition at line 462 of file mpegaudiodec_template.c.
Referenced by compute_imdct().
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Definition at line 504 of file mpegaudiodec_template.c.
Referenced by mp_decode_frame().
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Definition at line 569 of file mpegaudiodec_template.c.
Referenced by mp_decode_frame().
Definition at line 776 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 785 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 822 of file mpegaudiodec_template.c.
Referenced by huffman_decode().
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Definition at line 853 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 1004 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 1039 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 1196 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 1227 of file mpegaudiodec_template.c.
Referenced by mp_decode_layer3().
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Definition at line 1307 of file mpegaudiodec_template.c.
Referenced by mp_decode_frame().
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Definition at line 1561 of file mpegaudiodec_template.c.
Referenced by decode_frame().
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Definition at line 1662 of file mpegaudiodec_template.c.
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Definition at line 1732 of file mpegaudiodec_template.c.
Referenced by flush().
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Definition at line 1740 of file mpegaudiodec_template.c.
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Definition at line 100 of file mpegaudiodec_template.c.
Referenced by decode_init_static(), and huffman_decode().
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Definition at line 104 of file mpegaudiodec_template.c.
Referenced by decode_init_static().
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Definition at line 105 of file mpegaudiodec_template.c.
Referenced by decode_init_static().
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Definition at line 109 of file mpegaudiodec_template.c.
Referenced by decode_init_static(), and huffman_decode().
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Definition at line 110 of file mpegaudiodec_template.c.
Referenced by decode_init_static().
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Definition at line 111 of file mpegaudiodec_template.c.
Referenced by decode_init_static().
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Definition at line 113 of file mpegaudiodec_template.c.
Referenced by decode_init_static(), and init_long_region().
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Definition at line 116 of file mpegaudiodec_template.c.
Referenced by compute_stereo(), and decode_init_static().
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Definition at line 117 of file mpegaudiodec_template.c.
Referenced by compute_stereo(), and decode_init_static().
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Definition at line 118 of file mpegaudiodec_template.c.
Referenced by decode_init_static().
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Definition at line 120 of file mpegaudiodec_template.c.
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Definition at line 121 of file mpegaudiodec_template.c.
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Definition at line 122 of file mpegaudiodec_template.c.
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Definition at line 124 of file mpegaudiodec_template.c.
Referenced by decode_init_static(), and mp_decode_layer2().
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Definition at line 129 of file mpegaudiodec_template.c.
Referenced by decode_init_static(), l1_unscale(), and l2_unscale_group().
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Definition at line 131 of file mpegaudiodec_template.c.
Referenced by decode_init_static(), and l1_unscale().
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Definition at line 137 of file mpegaudiodec_template.c.
Referenced by l2_unscale_group().