libfdk-aacdec.c File Reference

#include <fdk-aac/aacdecoder_lib.h>
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"

Go to the source code of this file.

Data Structures
struct	FDKAACDecContext

Macros
#define	FDKDEC_VER_AT_LEAST(vl0, vl1)   0
#define	AAC_PCM_MAX_OUTPUT_CHANNELS   AAC_PCM_OUTPUT_CHANNELS
#define	DMX_ANC_BUFFSIZE   128
#define	DECODER_MAX_CHANNELS   8
#define	DECODER_BUFFSIZE   2048 * sizeof(INT_PCM)
#define	OFFSET(x)   offsetof(FDKAACDecContext, x)
#define	AD   AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Enumerations
enum	ConcealMethod { CONCEAL_METHOD_SPECTRAL_MUTING = 0, CONCEAL_METHOD_NOISE_SUBSTITUTION = 1, CONCEAL_METHOD_ENERGY_INTERPOLATION = 2, CONCEAL_METHOD_NB }

Functions
static int	get_stream_info (AVCodecContext *avctx)
static av_cold int	fdk_aac_decode_close (AVCodecContext *avctx)
static av_cold int	fdk_aac_decode_init (AVCodecContext *avctx)
static int	fdk_aac_decode_frame (AVCodecContext *avctx, AVFrame *frame, int *got_frame_ptr, AVPacket *avpkt)
static av_cold void	fdk_aac_decode_flush (AVCodecContext *avctx)

Variables
static const AVOption	fdk_aac_dec_options []
static const AVClass	fdk_aac_dec_class
const FFCodec	ff_libfdk_aac_decoder

Macro Definition Documentation

FDKDEC_VER_AT_LEAST

#define FDKDEC_VER_AT_LEAST	(		vl0,
			vl1
	)		0

Definition at line 35 of file libfdk-aacdec.c.

AAC_PCM_MAX_OUTPUT_CHANNELS

#define AAC_PCM_MAX_OUTPUT_CHANNELS   AAC_PCM_OUTPUT_CHANNELS

Definition at line 39 of file libfdk-aacdec.c.

DMX_ANC_BUFFSIZE

#define DMX_ANC_BUFFSIZE   128

Definition at line 72 of file libfdk-aacdec.c.

DECODER_MAX_CHANNELS

#define DECODER_MAX_CHANNELS   8

Definition at line 73 of file libfdk-aacdec.c.

DECODER_BUFFSIZE

#define DECODER_BUFFSIZE   2048 * sizeof(INT_PCM)

Definition at line 74 of file libfdk-aacdec.c.

OFFSET

#define OFFSET

(

x

)

offsetof(FDKAACDecContext, x)

Definition at line 76 of file libfdk-aacdec.c.

AD

#define AD   AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Definition at line 77 of file libfdk-aacdec.c.

Enumeration Type Documentation

ConcealMethod

enum ConcealMethod

Enumerator
CONCEAL_METHOD_SPECTRAL_MUTING
CONCEAL_METHOD_NOISE_SUBSTITUTION
CONCEAL_METHOD_ENERGY_INTERPOLATION
CONCEAL_METHOD_NB

Definition at line 42 of file libfdk-aacdec.c.

Function Documentation

get_stream_info()

static int get_stream_info ( AVCodecContext *  avctx )

static

Definition at line 114 of file libfdk-aacdec.c.

Referenced by fdk_aac_decode_frame().

fdk_aac_decode_close()

static av_cold int fdk_aac_decode_close ( AVCodecContext *  avctx )

static

Definition at line 231 of file libfdk-aacdec.c.

fdk_aac_decode_init()

static av_cold int fdk_aac_decode_init ( AVCodecContext *  avctx )

static

Definition at line 243 of file libfdk-aacdec.c.

fdk_aac_decode_frame()

static int fdk_aac_decode_frame ( AVCodecContext *  avctx, AVFrame *  frame, int *  got_frame_ptr, AVPacket *  avpkt  )

static

Definition at line 373 of file libfdk-aacdec.c.

fdk_aac_decode_flush()

static av_cold void fdk_aac_decode_flush ( AVCodecContext *  avctx )

static

Definition at line 459 of file libfdk-aacdec.c.

Variable Documentation

fdk_aac_dec_options

const AVOption fdk_aac_dec_options[]

static

Initial value:

= {
    { "conceal", "Error concealment method", OFFSET(conceal_method), AV_OPT_TYPE_INT, { .i64 = CONCEAL_METHOD_NOISE_SUBSTITUTION }, CONCEAL_METHOD_SPECTRAL_MUTING, CONCEAL_METHOD_NB - 1, AD, .unit = "conceal" },
    { "spectral", "Spectral muting",      0, AV_OPT_TYPE_CONST, { .i64 = CONCEAL_METHOD_SPECTRAL_MUTING },      INT_MIN, INT_MAX, AD, .unit = "conceal" },
    { "noise",    "Noise Substitution",   0, AV_OPT_TYPE_CONST, { .i64 = CONCEAL_METHOD_NOISE_SUBSTITUTION },   INT_MIN, INT_MAX, AD, .unit = "conceal" },
    { "energy",   "Energy Interpolation", 0, AV_OPT_TYPE_CONST, { .i64 = CONCEAL_METHOD_ENERGY_INTERPOLATION }, INT_MIN, INT_MAX, AD, .unit = "conceal" },
    { "drc_boost", "Dynamic Range Control: boost, where [0] is none and [127] is max boost",
                     OFFSET(drc_boost),      AV_OPT_TYPE_INT,   { .i64 = -1 }, -1, 127, AD, .unit = NULL    },
    { "drc_cut",   "Dynamic Range Control: attenuation factor, where [0] is none and [127] is max compression",
                     OFFSET(drc_cut),        AV_OPT_TYPE_INT,   { .i64 = -1 }, -1, 127, AD, .unit = NULL    },
    { "drc_level", "Dynamic Range Control: reference level, quantized to 0.25dB steps where [0] is 0dB and [127] is -31.75dB, -1 for auto, and -2 for disabled",
                     OFFSET(drc_level),      AV_OPT_TYPE_INT,   { .i64 = -1},  -2, 127, AD, .unit = NULL    },
    { "drc_heavy", "Dynamic Range Control: heavy compression, where [1] is on (RF mode) and [0] is off",
                     OFFSET(drc_heavy),      AV_OPT_TYPE_INT,   { .i64 = -1},  -1, 1,   AD, .unit = NULL    },
 
 
 
 
 
 
 
 
 
 
 
 
    { "downmix", "Request a specific channel layout from the decoder", OFFSET(downmix_layout), AV_OPT_TYPE_CHLAYOUT, {.str = NULL}, .flags = AD },
    { NULL }
}

Definition at line 78 of file libfdk-aacdec.c.

fdk_aac_dec_class

const AVClass fdk_aac_dec_class

static

Initial value:

= {
    .class_name = "libfdk-aac decoder",
    .item_name  = av_default_item_name,
    .option     = fdk_aac_dec_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 107 of file libfdk-aacdec.c.

ff_libfdk_aac_decoder

const FFCodec ff_libfdk_aac_decoder

Initial value:

= {
    .p.name         = "libfdk_aac",
    CODEC_LONG_NAME("Fraunhofer FDK AAC"),
    .p.type         = AVMEDIA_TYPE_AUDIO,
    .p.id           = AV_CODEC_ID_AAC,
    .priv_data_size = sizeof(FDKAACDecContext),
    .init           = fdk_aac_decode_init,
    FF_CODEC_DECODE_CB(fdk_aac_decode_frame),
    .close          = fdk_aac_decode_close,
    .flush          = fdk_aac_decode_flush,
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_CHANNEL_CONF
 
 
 
    ,
    .p.priv_class   = &fdk_aac_dec_class,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
    .p.wrapper_name = "libfdk",
}

Definition at line 472 of file libfdk-aacdec.c.