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 "internal.h"

Include dependency graph for libfdk-aacenc.c:

Go to the source code of this file.

Data Structures
struct	AACContext
	main AAC context More...

Typedefs
typedef struct AACContext	AACContext

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 AVCodecDefault	aac_encode_defaults []
static const uint64_t	aac_channel_layout []
static const int	aac_sample_rates []
AVCodec	ff_libfdk_aac_encoder

Typedef Documentation

typedef struct AACContext AACContext

Function Documentation

static int aac_encode_close ( AVCodecContext *  avctx )

static

Definition at line 94 of file libfdk-aacenc.c.

Referenced by aac_encode_init().

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

static

Definition at line 296 of file libfdk-aacenc.c.

static av_cold int aac_encode_init ( AVCodecContext *  avctx )

static

Definition at line 106 of file libfdk-aacenc.c.

static const char* aac_get_error ( AACENC_ERROR  err )

static

Definition at line 62 of file libfdk-aacenc.c.

Referenced by aac_encode_frame(), and aac_encode_init().

Variable Documentation

const uint64_t aac_channel_layout[]

static

Initial value:

= {
    AV_CH_LAYOUT_MONO,
    AV_CH_LAYOUT_STEREO,
    AV_CH_LAYOUT_SURROUND,
    AV_CH_LAYOUT_4POINT0,
    AV_CH_LAYOUT_5POINT0_BACK,
    AV_CH_LAYOUT_5POINT1_BACK,
    0,
}

Definition at line 379 of file libfdk-aacenc.c.

const AVClass aac_enc_class

static

Initial value:

= {
    "libfdk_aac", av_default_item_name, aac_enc_options, LIBAVUTIL_VERSION_INT
}

Definition at line 58 of file libfdk-aacenc.c.

const AVOption aac_enc_options[]

static

Initial value:

= {
    { "afterburner", "Afterburner (improved quality)", offsetof(AACContext, afterburner), 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)", offsetof(AACContext, eld_sbr), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
    { "signaling", "SBR/PS signaling style", offsetof(AACContext, signaling), 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", offsetof(AACContext, latm), 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)", offsetof(AACContext, header_period), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 0xffff, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
    { "vbr", "VBR mode (1-5)", offsetof(AACContext, vbr), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 5, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
    { NULL }
}

Definition at line 44 of file libfdk-aacenc.c.

const AVCodecDefault aac_encode_defaults[]

static

Initial value:

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

Definition at line 374 of file libfdk-aacenc.c.

const int aac_sample_rates[]

static

Initial value:

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

Definition at line 389 of file libfdk-aacenc.c.

AVCodec ff_libfdk_aac_encoder

Initial value:

= {
    .name                  = "libfdk_aac",
    .type                  = AVMEDIA_TYPE_AUDIO,
    .id                    = AV_CODEC_ID_AAC,
    .priv_data_size        = sizeof(AACContext),
    .init                  = aac_encode_init,
    .encode2               = aac_encode_frame,
    .close                 = aac_encode_close,
    .capabilities          = CODEC_CAP_SMALL_LAST_FRAME | CODEC_CAP_DELAY,
    .sample_fmts           = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
                                                            AV_SAMPLE_FMT_NONE },
    .long_name             = NULL_IF_CONFIG_SMALL("Fraunhofer FDK AAC"),
    .priv_class            = &aac_enc_class,
    .defaults              = aac_encode_defaults,
    .profiles              = profiles,
    .supported_samplerates = aac_sample_rates,
    .channel_layouts       = aac_channel_layout,
}

Definition at line 394 of file libfdk-aacenc.c.

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 365 of file libfdk-aacenc.c.