eac3enc.c File Reference

E-AC-3 encoder. More...

#include "libavutil/attributes.h"
#include "ac3enc.h"
#include "eac3enc.h"
#include "eac3_data.h"
#include "ac3enc_opts_template.c"

Macros
#define	CONFIG_AC3ENC_FLOAT   1
#define	AC3ENC_TYPE   AC3ENC_TYPE_EAC3

Functions
av_cold void	ff_eac3_exponent_init (void)
	Initialize E-AC-3 exponent tables.
void	ff_eac3_get_frame_exp_strategy (AC3EncodeContext *s)
	Determine frame exponent strategy use and indices.
void	ff_eac3_set_cpl_states (AC3EncodeContext *s)
	Set coupling states. More...
void	ff_eac3_output_frame_header (AC3EncodeContext *s)
	Write the E-AC-3 frame header to the output bitstream.

Variables
AVCodec	ff_eac3_encoder

Detailed Description

E-AC-3 encoder.

Function Documentation

ff_eac3_set_cpl_states()

void ff_eac3_set_cpl_states

(

AC3EncodeContext *

s

)

Set coupling states.

This determines whether certain flags must be written to the bitstream or whether they will be implicitly already known by the decoder.

Variable Documentation

ff_eac3_encoder

AVCodec ff_eac3_encoder

Initial value:

= {
    .name            = "eac3",
    .long_name       = NULL_IF_CONFIG_SMALL("ATSC A/52 E-AC-3"),
    .type            = AVMEDIA_TYPE_AUDIO,
    .id              = AV_CODEC_ID_EAC3,
    .priv_data_size  = sizeof(AC3EncodeContext),
    .init            = ff_ac3_float_encode_init,
    .encode2         = ff_ac3_float_encode_frame,
    .close           = ff_ac3_encode_close,
    .sample_fmts     = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP,
                                                      AV_SAMPLE_FMT_NONE },
    .priv_class      = &eac3enc_class,
    .channel_layouts = ff_ac3_channel_layouts,
    .defaults        = ac3_defaults,
}