libfdk-aacenc.c File Reference

#include <fdk-aac/aacenc_lib.h>
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "audio_frame_queue.h"
#include "codec_internal.h"
#include "encode.h"
#include "profiles.h"

Go to the source code of this file.

Data Structures
struct	AACContext
	main AAC context More...

Macros
#define	FDKENC_VER_AT_LEAST(vl0, vl1)   0

Functions
static const char *	aac_get_error (AACENC_ERROR err)
static int	aac_encode_close (AVCodecContext *avctx)
static av_cold int	aac_encode_init (AVCodecContext *avctx)
static int	aac_encode_frame (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)

Variables
static const AVOption	aac_enc_options []
static const AVClass	aac_enc_class
static const AVProfile	profiles []
static const FFCodecDefault	aac_encode_defaults []
static const AVChannelLayout	aac_ch_layouts [16]
static const int	aac_sample_rates []
const FFCodec	ff_libfdk_aac_encoder

Macro Definition Documentation

FDKENC_VER_AT_LEAST

#define FDKENC_VER_AT_LEAST	(		vl0,
			vl1
	)		0

Definition at line 36 of file libfdk-aacenc.c.

Function Documentation

aac_get_error()

static const char* aac_get_error ( AACENC_ERROR  err )

static

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

Referenced by aac_encode_frame(), and aac_encode_init().

aac_encode_close()

static int aac_encode_close ( AVCodecContext *  avctx )

static

Definition at line 110 of file libfdk-aacenc.c.

Referenced by aac_encode_init().

aac_encode_init()

static av_cold int aac_encode_init ( AVCodecContext *  avctx )

static

Definition at line 121 of file libfdk-aacenc.c.

aac_encode_frame()

static int aac_encode_frame ( AVCodecContext *  avctx, AVPacket *  avpkt, const AVFrame *  frame, int *  got_packet_ptr  )

static

Definition at line 359 of file libfdk-aacenc.c.

Variable Documentation

aac_enc_options

const AVOption aac_enc_options[]

static

Initial value:

= {
    { "afterburner", "Afterburner (improved quality)", 0x42, AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
    { "eld_sbr", "Enable SBR for ELD (for SBR in other configurations, use the -profile parameter)", 0x42, AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
 
 
 
    { "signaling", "SBR/PS signaling style", 0x42, AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
    { "default", "Choose signaling implicitly (explicit hierarchical by default, implicit if global header is disabled)", 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
    { "implicit", "Implicit backwards compatible signaling", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
    { "explicit_sbr", "Explicit SBR, implicit PS signaling", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
    { "explicit_hierarchical", "Explicit hierarchical signaling", 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
    { "latm", "Output LATM/LOAS encapsulated data", 0x42, AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
    { "header_period", "StreamMuxConfig and PCE repetition period (in frames)", 0x42, AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 0xffff, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
    { "vbr", "VBR mode (1-5)", 0x42, AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 5, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
    FF_AAC_PROFILE_OPTS
    { NULL }
}

Definition at line 53 of file libfdk-aacenc.c.

aac_enc_class

const AVClass aac_enc_class

static

Initial value:

= {
    .class_name = "libfdk_aac",
    .item_name  = av_default_item_name,
    .option     = aac_enc_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 71 of file libfdk-aacenc.c.

profiles

const AVProfile profiles[]

static

Initial value:

= {
    { FF_PROFILE_AAC_LOW,   "LC"       },
    { FF_PROFILE_AAC_HE,    "HE-AAC"   },
    { FF_PROFILE_AAC_HE_V2, "HE-AACv2" },
    { FF_PROFILE_AAC_LD,    "LD"       },
    { FF_PROFILE_AAC_ELD,   "ELD"      },
    { FF_PROFILE_UNKNOWN },
}

Definition at line 436 of file libfdk-aacenc.c.

Referenced by print_profile().

aac_encode_defaults

const FFCodecDefault aac_encode_defaults[]

static

Initial value:

= {
    { "b", "0" },
    { NULL }
}

Definition at line 445 of file libfdk-aacenc.c.

aac_ch_layouts

const AVChannelLayout aac_ch_layouts[16]

static

Initial value:

= {
    AV_CHANNEL_LAYOUT_MONO,
    AV_CHANNEL_LAYOUT_STEREO,
    AV_CHANNEL_LAYOUT_SURROUND,
    AV_CHANNEL_LAYOUT_4POINT0,
    AV_CHANNEL_LAYOUT_5POINT0_BACK,
    AV_CHANNEL_LAYOUT_5POINT1_BACK,
 
 
 
 
 
 
 
 
 
 
    { 0 },
}

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

aac_sample_rates

const int aac_sample_rates[]

static

Initial value:

= {
    96000, 88200, 64000, 48000, 44100, 32000,
    24000, 22050, 16000, 12000, 11025, 8000, 0
}

Definition at line 492 of file libfdk-aacenc.c.

ff_libfdk_aac_encoder

const FFCodec ff_libfdk_aac_encoder

Initial value:

= {
    .p.name                = "libfdk_aac",
    CODEC_LONG_NAME("Fraunhofer FDK AAC"),
    .p.type                = AVMEDIA_TYPE_AUDIO,
    .p.id                  = AV_CODEC_ID_AAC,
    .p.capabilities        = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
                             AV_CODEC_CAP_SMALL_LAST_FRAME,
    .caps_internal         = FF_CODEC_CAP_NOT_INIT_THREADSAFE,
    .priv_data_size        = sizeof(AACContext),
    .init                  = aac_encode_init,
    FF_CODEC_ENCODE_CB(aac_encode_frame),
    .close                 = aac_encode_close,
    .p.sample_fmts         = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
                                                            AV_SAMPLE_FMT_NONE },
    .p.priv_class          = &aac_enc_class,
    .defaults              = aac_encode_defaults,
    .p.profiles            = profiles,
    .p.supported_samplerates = aac_sample_rates,
    .p.wrapper_name        = "libfdk",
 
    .p.ch_layouts          = aac_ch_layouts,
}

Definition at line 497 of file libfdk-aacenc.c.