Vorbis I decoder. More...
#include <inttypes.h>
#include <math.h>
#include "avcodec.h"
#include "get_bits.h"
#include "dsputil.h"
#include "fft.h"
#include "fmtconvert.h"
#include "vorbis.h"
#include "xiph.h"
#include <assert.h>
Go to the source code of this file.
Data Structures | |
struct | vorbis_codebook |
struct | vorbis_floor |
union | vorbis_floor::vorbis_floor_u |
struct | vorbis_floor::vorbis_floor_u::vorbis_floor0_s |
struct | vorbis_floor::vorbis_floor_u::vorbis_floor1_s |
struct | vorbis_residue |
struct | vorbis_mapping |
struct | vorbis_mode |
struct | vorbis_context_s |
Defines | |
#define | BITSTREAM_READER_LE |
#define | V_NB_BITS 8 |
#define | V_NB_BITS2 11 |
#define | V_MAX_VLCS (1 << 16) |
#define | V_MAX_PARTITIONS (1 << 20) |
#define | BARK(x) (13.1f * atan(0.00074f * (x)) + 2.24f * atan(1.85e-8f * (x) * (x)) + 1e-4f * (x)) |
#define | VALIDATE_INDEX(idx, limit) |
#define | GET_VALIDATED_INDEX(idx, bits, limit) |
Typedefs | |
typedef union vorbis_floor_u | vorbis_floor_data |
typedef struct vorbis_floor0_s | vorbis_floor0 |
typedef struct vorbis_floor1_s | vorbis_floor1 |
typedef int(* | vorbis_floor_decode_func )(struct vorbis_context_s *, vorbis_floor_data *, float *) |
typedef struct vorbis_context_s | vorbis_context |
Functions | |
static float | vorbisfloat2float (unsigned val) |
static void | vorbis_free (vorbis_context *vc) |
static int | vorbis_parse_setup_hdr_codebooks (vorbis_context *vc) |
static int | vorbis_parse_setup_hdr_tdtransforms (vorbis_context *vc) |
static int | vorbis_floor0_decode (vorbis_context *vc, vorbis_floor_data *vfu, float *vec) |
static void | create_map (vorbis_context *vc, unsigned floor_number) |
static int | vorbis_floor1_decode (vorbis_context *vc, vorbis_floor_data *vfu, float *vec) |
static int | vorbis_parse_setup_hdr_floors (vorbis_context *vc) |
static int | vorbis_parse_setup_hdr_residues (vorbis_context *vc) |
static int | vorbis_parse_setup_hdr_mappings (vorbis_context *vc) |
static int | vorbis_parse_setup_hdr_modes (vorbis_context *vc) |
static int | vorbis_parse_setup_hdr (vorbis_context *vc) |
static int | vorbis_parse_id_hdr (vorbis_context *vc) |
static av_cold int | vorbis_decode_init (AVCodecContext *avccontext) |
static av_always_inline int | vorbis_residue_decode_internal (vorbis_context *vc, vorbis_residue *vr, unsigned ch, uint8_t *do_not_decode, float *vec, unsigned vlen, unsigned ch_left, int vr_type) |
static int | vorbis_residue_decode (vorbis_context *vc, vorbis_residue *vr, unsigned ch, uint8_t *do_not_decode, float *vec, unsigned vlen, unsigned ch_left) |
void | vorbis_inverse_coupling (float *mag, float *ang, int blocksize) |
static int | vorbis_parse_audio_packet (vorbis_context *vc) |
static int | vorbis_decode_frame (AVCodecContext *avccontext, void *data, int *got_frame_ptr, AVPacket *avpkt) |
static av_cold int | vorbis_decode_close (AVCodecContext *avccontext) |
Variables | |
static const char | idx_err_str [] = "Index value %d out of range (0 - %d) for %s at %s:%i\n" |
AVCodec | ff_vorbis_decoder |
Vorbis I decoder.
Definition in file vorbisdec.c.
#define BARK | ( | x | ) | (13.1f * atan(0.00074f * (x)) + 2.24f * atan(1.85e-8f * (x) * (x)) + 1e-4f * (x)) |
Definition at line 159 of file vorbisdec.c.
Referenced by create_map().
#define BITSTREAM_READER_LE |
Definition at line 28 of file vorbisdec.c.
#define GET_VALIDATED_INDEX | ( | idx, | ||
bits, | ||||
limit | ||||
) |
{\ idx = get_bits(gb, bits);\ VALIDATE_INDEX(idx, limit)\ }
Definition at line 170 of file vorbisdec.c.
Referenced by vorbis_parse_audio_packet(), vorbis_parse_setup_hdr_floors(), vorbis_parse_setup_hdr_mappings(), vorbis_parse_setup_hdr_modes(), and vorbis_parse_setup_hdr_residues().
#define V_MAX_PARTITIONS (1 << 20) |
Definition at line 41 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr_residues().
#define V_MAX_VLCS (1 << 16) |
Definition at line 40 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr_codebooks().
#define V_NB_BITS 8 |
Definition at line 38 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr_codebooks().
#define V_NB_BITS2 11 |
Definition at line 39 of file vorbisdec.c.
#define VALIDATE_INDEX | ( | idx, | ||
limit | ||||
) |
if (idx >= limit) {\ av_log(vc->avccontext, AV_LOG_ERROR,\ idx_err_str,\ (int)(idx), (int)(limit - 1), #idx, __FILE__, __LINE__);\ return AVERROR_INVALIDDATA;\ }
Definition at line 163 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr_floors().
typedef struct vorbis_context_s vorbis_context |
typedef struct vorbis_floor0_s vorbis_floor0 |
Definition at line 56 of file vorbisdec.c.
typedef struct vorbis_floor1_s vorbis_floor1 |
Definition at line 57 of file vorbisdec.c.
typedef union vorbis_floor_u vorbis_floor_data |
Definition at line 55 of file vorbisdec.c.
typedef int(* vorbis_floor_decode_func)(struct vorbis_context_s *, vorbis_floor_data *, float *) |
Definition at line 61 of file vorbisdec.c.
static void create_map | ( | vorbis_context * | vc, | |
unsigned | floor_number | |||
) | [static] |
Definition at line 810 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr_floors().
static av_cold int vorbis_decode_close | ( | AVCodecContext * | avccontext | ) | [static] |
Definition at line 1701 of file vorbisdec.c.
static int vorbis_decode_frame | ( | AVCodecContext * | avccontext, | |
void * | data, | |||
int * | got_frame_ptr, | |||
AVPacket * | avpkt | |||
) | [static] |
Definition at line 1643 of file vorbisdec.c.
static av_cold int vorbis_decode_init | ( | AVCodecContext * | avccontext | ) | [static] |
Definition at line 979 of file vorbisdec.c.
static int vorbis_floor0_decode | ( | vorbis_context * | vc, | |
vorbis_floor_data * | vfu, | |||
float * | vec | |||
) | [static] |
Definition at line 1055 of file vorbisdec.c.
static int vorbis_floor1_decode | ( | vorbis_context * | vc, | |
vorbis_floor_data * | vfu, | |||
float * | vec | |||
) | [static] |
Definition at line 1161 of file vorbisdec.c.
static void vorbis_free | ( | vorbis_context * | vc | ) | [static] |
Definition at line 188 of file vorbisdec.c.
Referenced by vorbis_decode_close(), and vorbis_decode_init().
void vorbis_inverse_coupling | ( | float * | mag, | |
float * | ang, | |||
int | blocksize | |||
) |
Definition at line 1459 of file vorbisdec.c.
static int vorbis_parse_audio_packet | ( | vorbis_context * | vc | ) | [static] |
Definition at line 1485 of file vorbisdec.c.
Referenced by vorbis_decode_frame().
static int vorbis_parse_id_hdr | ( | vorbis_context * | vc | ) | [static] |
Definition at line 914 of file vorbisdec.c.
Referenced by vorbis_decode_init().
static int vorbis_parse_setup_hdr | ( | vorbis_context * | vc | ) | [static] |
Definition at line 868 of file vorbisdec.c.
Referenced by vorbis_decode_init().
static int vorbis_parse_setup_hdr_codebooks | ( | vorbis_context * | vc | ) | [static] |
Definition at line 234 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr().
static int vorbis_parse_setup_hdr_floors | ( | vorbis_context * | vc | ) | [static] |
Definition at line 483 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr().
static int vorbis_parse_setup_hdr_mappings | ( | vorbis_context * | vc | ) | [static] |
Definition at line 743 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr().
static int vorbis_parse_setup_hdr_modes | ( | vorbis_context * | vc | ) | [static] |
Definition at line 841 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr().
static int vorbis_parse_setup_hdr_residues | ( | vorbis_context * | vc | ) | [static] |
Definition at line 663 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr().
static int vorbis_parse_setup_hdr_tdtransforms | ( | vorbis_context * | vc | ) | [static] |
Definition at line 457 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr().
static int vorbis_residue_decode | ( | vorbis_context * | vc, | |
vorbis_residue * | vr, | |||
unsigned | ch, | |||
uint8_t * | do_not_decode, | |||
float * | vec, | |||
unsigned | vlen, | |||
unsigned | ch_left | |||
) | [inline, static] |
Definition at line 1441 of file vorbisdec.c.
Referenced by vorbis_parse_audio_packet().
static av_always_inline int vorbis_residue_decode_internal | ( | vorbis_context * | vc, | |
vorbis_residue * | vr, | |||
unsigned | ch, | |||
uint8_t * | do_not_decode, | |||
float * | vec, | |||
unsigned | vlen, | |||
unsigned | ch_left, | |||
int | vr_type | |||
) | [static] |
Definition at line 1287 of file vorbisdec.c.
Referenced by vorbis_residue_decode().
static float vorbisfloat2float | ( | unsigned | val | ) | [static] |
Definition at line 176 of file vorbisdec.c.
Referenced by vorbis_parse_setup_hdr_codebooks().
{ .name = "vorbis", .type = AVMEDIA_TYPE_AUDIO, .id = CODEC_ID_VORBIS, .priv_data_size = sizeof(vorbis_context), .init = vorbis_decode_init, .close = vorbis_decode_close, .decode = vorbis_decode_frame, .capabilities = CODEC_CAP_DR1, .long_name = NULL_IF_CONFIG_SMALL("Vorbis"), .channel_layouts = ff_vorbis_channel_layouts, .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }, }
Definition at line 1710 of file vorbisdec.c.
const char idx_err_str[] = "Index value %d out of range (0 - %d) for %s at %s:%i\n" [static] |
Definition at line 162 of file vorbisdec.c.