libavcodec/vorbis_data.c File Reference

#include "dsputil.h"
#include "vorbis.h"
#include "libavutil/audioconvert.h"

Go to the source code of this file.

Variables
const uint8_t	ff_vorbis_channel_layout_offsets [8][8]
const uint8_t	ff_vorbis_encoding_channel_layout_offsets [8][8]
const uint64_t	ff_vorbis_channel_layouts [9]
static const float	vwin64 [32]
static const float	vwin128 [64]
static const float	vwin256 [128]
static const float	vwin512 [256]
static const float	vwin1024 [512]
static const float	vwin2048 [1024]
static const float	vwin4096 [2048]
static const float	vwin8192 [4096]
const float	ff_vorbis_floor1_inverse_db_table [256]
const float *const	ff_vorbis_vwin [8]

---

Variable Documentation

const uint8_t ff_vorbis_channel_layout_offsets[8][8]

Initial value:

 {
    { 0 },
    { 0, 1 },
    { 0, 2, 1 },
    { 0, 1, 2, 3 },
    { 0, 2, 1, 3, 4 },
    { 0, 2, 1, 5, 3, 4 },
    { 0, 2, 1, 6, 5, 3, 4 },
    { 0, 2, 1, 7, 5, 6, 3, 4 },
}

Definition at line 25 of file vorbis_data.c.

Referenced by vorbis_decode_frame().

const uint64_t ff_vorbis_channel_layouts[9]

Initial value:

 {
    AV_CH_LAYOUT_MONO,
    AV_CH_LAYOUT_STEREO,
    AV_CH_LAYOUT_SURROUND,
    AV_CH_LAYOUT_QUAD,
    AV_CH_LAYOUT_5POINT0_BACK,
    AV_CH_LAYOUT_5POINT1_BACK,
    AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER,
    AV_CH_LAYOUT_7POINT1,
    0
}

Definition at line 47 of file vorbis_data.c.

Referenced by ff_flac_decode_frame_header(), and vorbis_decode_init().

const uint8_t ff_vorbis_encoding_channel_layout_offsets[8][8]

Initial value:

 {
    { 0 },
    { 0, 1 },
    { 0, 2, 1 },
    { 0, 1, 2, 3 },
    { 0, 2, 1, 3, 4 },
    { 0, 2, 1, 4, 5, 3 },
    { 0, 2, 1, 5, 6, 4, 3 },
    { 0, 2, 1, 6, 7, 4, 5, 3 },
}

Definition at line 36 of file vorbis_data.c.

Referenced by oggvorbis_encode_frame().

const float ff_vorbis_floor1_inverse_db_table[256]

Definition at line 2123 of file vorbis_data.c.

Referenced by floor_fit(), render_line(), and render_line_unrolled().

const float* const ff_vorbis_vwin[8]

Initial value:

 {
      vwin64,  vwin128,  vwin256,  vwin512,
    vwin1024, vwin2048, vwin4096, vwin8192
}

Definition at line 2190 of file vorbis_data.c.

Referenced by create_vorbis_context(), and vorbis_parse_id_hdr().

const float vwin1024[512] [static]

Definition at line 191 of file vorbis_data.c.

const float vwin128[64] [static]

Initial value:

 {
    0.0002365472F, 0.0021280687F, 0.0059065254F, 0.0115626550F,
    0.0190823442F, 0.0284463735F, 0.0396300935F, 0.0526030430F,
    0.0673285281F, 0.0837631763F, 0.1018564887F, 0.1215504095F,
    0.1427789367F, 0.1654677960F, 0.1895342001F, 0.2148867160F,
    0.2414252576F, 0.2690412240F, 0.2976177952F, 0.3270303960F,
    0.3571473350F, 0.3878306189F, 0.4189369387F, 0.4503188188F,
    0.4818259135F, 0.5133064334F, 0.5446086751F, 0.5755826278F,
    0.6060816248F, 0.6359640047F, 0.6650947483F, 0.6933470543F,
    0.7206038179F, 0.7467589810F, 0.7717187213F, 0.7954024542F,
    0.8177436264F, 0.8386902831F, 0.8582053981F, 0.8762669622F,
    0.8928678298F, 0.9080153310F, 0.9217306608F, 0.9340480615F,
    0.9450138200F, 0.9546851041F, 0.9631286621F, 0.9704194171F,
    0.9766389810F, 0.9818741197F, 0.9862151938F, 0.9897546035F,
    0.9925852598F, 0.9947991032F, 0.9964856900F, 0.9977308602F,
    0.9986155015F, 0.9992144193F, 0.9995953200F, 0.9998179155F,
    0.9999331503F, 0.9999825563F, 0.9999977357F, 0.9999999720F,
}

Definition at line 70 of file vorbis_data.c.

const float vwin2048[1024] [static]

Definition at line 322 of file vorbis_data.c.

const float vwin256[128] [static]

Definition at line 89 of file vorbis_data.c.

const float vwin4096[2048] [static]

Definition at line 581 of file vorbis_data.c.

const float vwin512[256] [static]

Definition at line 124 of file vorbis_data.c.

const float vwin64[32] [static]

Initial value:

 {
    0.0009460463F, 0.0085006468F, 0.0235352254F, 0.0458950567F,
    0.0753351908F, 0.1115073077F, 0.1539457973F, 0.2020557475F,
    0.2551056759F, 0.3122276645F, 0.3724270287F, 0.4346027792F,
    0.4975789974F, 0.5601459521F, 0.6211085051F, 0.6793382689F,
    0.7338252629F, 0.7837245849F, 0.8283939355F, 0.8674186656F,
    0.9006222429F, 0.9280614787F, 0.9500073081F, 0.9669131782F,
    0.9793740220F, 0.9880792941F, 0.9937636139F, 0.9971582668F,
    0.9989462667F, 0.9997230082F, 0.9999638688F, 0.9999995525F,
}

Definition at line 59 of file vorbis_data.c.

const float vwin8192[4096] [static]

Definition at line 1096 of file vorbis_data.c.