enc.c File Reference

#include <float.h>
#include "enc.h"
#include "pvq.h"
#include "enc_psy.h"
#include "tab.h"
#include "libavutil/channel_layout.h"
#include "libavutil/float_dsp.h"
#include "libavutil/mem.h"
#include "libavutil/mem_internal.h"
#include "libavutil/opt.h"
#include "libavcodec/audio_frame_queue.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/codec_internal.h"
#include "libavcodec/encode.h"

Go to the source code of this file.

Data Structures
struct	OpusEncContext

Macros
#define	OPUSENC_FLAGS   AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM

Functions
static void	opus_write_extradata (AVCodecContext *avctx)
static int	opus_gen_toc (OpusEncContext *s, uint8_t *toc, int *size, int *fsize_needed)
static void	celt_frame_setup_input (OpusEncContext *s, CeltFrame *f)
static void	celt_apply_preemph_filter (OpusEncContext *s, CeltFrame *f)
static void	celt_frame_mdct (OpusEncContext *s, CeltFrame *f)
static void	celt_enc_tf (CeltFrame *f, OpusRangeCoder *rc)
static void	celt_enc_quant_pfilter (OpusRangeCoder *rc, CeltFrame *f)
static void	exp_quant_coarse (OpusRangeCoder *rc, CeltFrame *f, float last_energy[][CELT_MAX_BANDS], int intra)
static void	celt_quant_coarse (CeltFrame *f, OpusRangeCoder *rc, float last_energy[][CELT_MAX_BANDS])
static void	celt_quant_fine (CeltFrame *f, OpusRangeCoder *rc)
static void	celt_quant_final (OpusEncContext *s, OpusRangeCoder *rc, CeltFrame *f)
static void	celt_encode_frame (OpusEncContext *s, OpusRangeCoder *rc, CeltFrame *f, int index)
static int	write_opuslacing (uint8_t *dst, int v)
static void	opus_packet_assembler (OpusEncContext *s, AVPacket *avpkt)
static AVFrame *	spawn_empty_frame (OpusEncContext *s)
static int	opus_encode_frame (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
static av_cold int	opus_encode_end (AVCodecContext *avctx)
static av_cold int	opus_encode_init (AVCodecContext *avctx)

Variables
static const AVOption	opusenc_options []
static const AVClass	opusenc_class
static const FFCodecDefault	opusenc_defaults []
const FFCodec	ff_opus_encoder

Macro Definition Documentation

OPUSENC_FLAGS

#define OPUSENC_FLAGS   AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM

Definition at line 727 of file enc.c.

Function Documentation

opus_write_extradata()

static void opus_write_extradata ( AVCodecContext * avctx )

static

Definition at line 68 of file enc.c.

Referenced by opus_encode_init().

opus_gen_toc()

static int opus_gen_toc ( OpusEncContext * s, uint8_t * toc, int * size, int * fsize_needed )

static

Definition at line 81 of file enc.c.

Referenced by opus_packet_assembler().

celt_frame_setup_input()

static void celt_frame_setup_input ( OpusEncContext * s, CeltFrame * f )

static

Definition at line 124 of file enc.c.

Referenced by celt_encode_frame().

celt_apply_preemph_filter()

static void celt_apply_preemph_filter ( OpusEncContext * s, CeltFrame * f )

static

Definition at line 175 of file enc.c.

Referenced by celt_encode_frame().

celt_frame_mdct()

static void celt_frame_mdct ( OpusEncContext * s, CeltFrame * f )

static

Definition at line 210 of file enc.c.

Referenced by celt_encode_frame().

celt_enc_tf()

static void celt_enc_tf ( CeltFrame * f, OpusRangeCoder * rc )

static

Definition at line 275 of file enc.c.

Referenced by celt_encode_frame().

celt_enc_quant_pfilter()

static void celt_enc_quant_pfilter ( OpusRangeCoder * rc, CeltFrame * f )

static

Definition at line 302 of file enc.c.

Referenced by celt_encode_frame().

exp_quant_coarse()

static void exp_quant_coarse ( OpusRangeCoder * rc, CeltFrame * f, float last_energy[][CELT_MAX_BANDS], int intra )

static

Definition at line 339 of file enc.c.

Referenced by celt_quant_coarse().

celt_quant_coarse()

static void celt_quant_coarse ( CeltFrame * f, OpusRangeCoder * rc, float last_energy[][CELT_MAX_BANDS] )

static

Definition at line 382 of file enc.c.

Referenced by celt_encode_frame().

celt_quant_fine()

static void celt_quant_fine ( CeltFrame * f, OpusRangeCoder * rc )

static

Definition at line 402 of file enc.c.

Referenced by celt_encode_frame().

celt_quant_final()

static void celt_quant_final ( OpusEncContext * s, OpusRangeCoder * rc, CeltFrame * f )

static

Definition at line 419 of file enc.c.

Referenced by celt_encode_frame().

celt_encode_frame()

static void celt_encode_frame ( OpusEncContext * s, OpusRangeCoder * rc, CeltFrame * f, int index )

static

Definition at line 437 of file enc.c.

Referenced by opus_encode_frame().

write_opuslacing()

static int write_opuslacing ( uint8_t * dst, int v )

inlinestatic

Definition at line 502 of file enc.c.

Referenced by opus_packet_assembler().

opus_packet_assembler()

static void opus_packet_assembler ( OpusEncContext * s, AVPacket * avpkt )

static

Definition at line 509 of file enc.c.

Referenced by opus_encode_frame().

spawn_empty_frame()

static AVFrame * spawn_empty_frame ( OpusEncContext * s )

static

Definition at line 535 of file enc.c.

Referenced by opus_encode_frame(), and opus_encode_init().

opus_encode_frame()

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

static

Definition at line 559 of file enc.c.

opus_encode_end()

static av_cold int opus_encode_end ( AVCodecContext * avctx )

static

Definition at line 631 of file enc.c.

opus_encode_init()

static av_cold int opus_encode_init ( AVCodecContext * avctx )

static

Definition at line 649 of file enc.c.

Variable Documentation

opusenc_options

const AVOption opusenc_options[]

static

Initial value:

= {
    { "opus_delay", "Maximum delay in milliseconds",  0x42 , AV_OPT_TYPE_FLOAT, { .dbl = OPUS_MAX_LOOKAHEAD }, 2.5f, OPUS_MAX_LOOKAHEAD, OPUSENC_FLAGS, .unit = "max_delay_ms" },
    { "apply_phase_inv", "Apply intensity stereo phase inversion",  0x42 , AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, OPUSENC_FLAGS, .unit = "apply_phase_inv" },
    { NULL },
}

Definition at line 728 of file enc.c.

opusenc_class

const AVClass opusenc_class

static

Initial value:

= {
    .class_name = "Opus encoder",
    .item_name  = av_default_item_name,
    .option     = opusenc_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 734 of file enc.c.

opusenc_defaults

const FFCodecDefault opusenc_defaults[]

static

Initial value:

= {
    { "b", "0" },
    { "compression_level", "10" },
    { NULL },
}

Definition at line 741 of file enc.c.

ff_opus_encoder

const FFCodec ff_opus_encoder

Initial value:

= {
    .p.name         = "opus",
    CODEC_LONG_NAME("Opus"),
    .p.type         = AVMEDIA_TYPE_AUDIO,
    .p.id           = AV_CODEC_ID_OPUS,
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
                      AV_CODEC_CAP_SMALL_LAST_FRAME | AV_CODEC_CAP_EXPERIMENTAL,
    .defaults       = opusenc_defaults,
    .p.priv_class   = &opusenc_class,
    .priv_data_size = sizeof(OpusEncContext),
    .init           = opus_encode_init,
    FF_CODEC_ENCODE_CB(opus_encode_frame),
    .close          = opus_encode_end,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
    CODEC_SAMPLERATES(48000),
    CODEC_CH_LAYOUTS(AV_CHANNEL_LAYOUT_MONO, AV_CHANNEL_LAYOUT_STEREO),
    CODEC_SAMPLEFMTS(AV_SAMPLE_FMT_FLTP),
}

Definition at line 747 of file enc.c.