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ac3enc: drop common fixed/float encoder 

User applications should by now be able to support float encoders.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-08-12 16:15:54 +02:00
parent d912e449b6
commit 9f4d37f450
6 changed files with 9 additions and 168 deletions
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6
libavcodec/Makefile
View File

@ -62,9 +62,9 @@ OBJS-$(CONFIG_AAC_ENCODER) += aacenc.o aaccoder.o \
mpeg4audio.o kbdwin.o
OBJS-$(CONFIG_AASC_DECODER) += aasc.o msrledec.o
OBJS-$(CONFIG_AC3_DECODER) += ac3dec.o ac3dec_data.o ac3.o kbdwin.o
OBJS-$(CONFIG_AC3_ENCODER) += ac3enc_combined.o ac3enc_fixed.o ac3enc_float.o ac3tab.o ac3.o kbdwin.o ac3enc.o
OBJS-$(CONFIG_AC3_FLOAT_ENCODER) += ac3enc_float.o ac3tab.o ac3tab.o ac3.o kbdwin.o
OBJS-$(CONFIG_AC3_FIXED_ENCODER) += ac3enc_fixed.o ac3tab.o ac3tab.o ac3.o ac3enc.o
OBJS-$(CONFIG_AC3_ENCODER) += ac3enc_float.o ac3enc.o ac3tab.o \
ac3.o kbdwin.o
OBJS-$(CONFIG_AC3_FIXED_ENCODER) += ac3enc_fixed.o ac3enc.o ac3tab.o ac3.o
OBJS-$(CONFIG_ALAC_DECODER) += alac.o
OBJS-$(CONFIG_ALAC_ENCODER) += alacenc.o
OBJS-$(CONFIG_ALS_DECODER) += alsdec.o bgmc.o mpeg4audio.o

41
libavcodec/ac3.h
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@ -131,49 +131,8 @@ typedef enum {
EAC3_FRAME_TYPE_RESERVED
} EAC3FrameType;
/**
* Encoding Options used by AVOption.
*/
typedef struct AC3EncOptions {
/* AC-3 metadata options*/
int dialogue_level;
int bitstream_mode;
float center_mix_level;
float surround_mix_level;
int dolby_surround_mode;
int audio_production_info;
int mixing_level;
int room_type;
int copyright;
int original;
int extended_bsi_1;
int preferred_stereo_downmix;
float ltrt_center_mix_level;
float ltrt_surround_mix_level;
float loro_center_mix_level;
float loro_surround_mix_level;
int extended_bsi_2;
int dolby_surround_ex_mode;
int dolby_headphone_mode;
int ad_converter_type;
int eac3_mixing_metadata;
int eac3_info_metadata;
/* other encoding options */
int allow_per_frame_metadata;
int stereo_rematrixing;
int channel_coupling;
int cpl_start;
} AC3EncOptions;
void ff_ac3_common_init(void);
extern const int64_t ff_ac3_channel_layouts[];
extern const AVOption ff_ac3_options[];
extern AVCodec ff_ac3_float_encoder;
extern AVCodec ff_ac3_fixed_encoder;
/**
* Calculate the log power-spectral density of the input signal.
* This gives a rough estimate of signal power in the frequency domain by using

5
libavcodec/ac3enc.h
View File

@ -83,7 +83,6 @@ typedef int64_t CoefSumType;
#define AC3ENC_OPT_ADCONV_HDCD 1
#if 0
/**
* Encoding Options used by AVOption.
*/
@ -118,7 +117,7 @@ typedef struct AC3EncOptions {
int channel_coupling;
int cpl_start;
} AC3EncOptions;
#endif
/**
* Data for a single audio block.
*/
@ -257,6 +256,8 @@ typedef struct AC3EncodeContext {
} AC3EncodeContext;
extern const int64_t ff_ac3_channel_layouts[19];
int ff_ac3_encode_init(AVCodecContext *avctx);
int ff_ac3_encode_close(AVCodecContext *avctx);

118
libavcodec/ac3enc_combined.c
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@ -1,118 +0,0 @@
#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
#include "avcodec.h"
#include "ac3.h"
typedef struct CombineContext{
AVClass *av_class; ///< AVClass used for AVOption
AC3EncOptions options; ///< encoding options
void *ctx;
AVCodec *codec;
}CombineContext;
#define OFFSET(param) offsetof(CombineContext, options.param)
#define AC3ENC_PARAM (AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
#define AC3ENC_TYPE_AC3_FIXED 0
#define AC3ENC_TYPE_AC3 1
#define AC3ENC_TYPE_EAC3 2
#define AC3ENC_TYPE 12354
/* common option values */
#define AC3ENC_OPT_NONE -1
#define AC3ENC_OPT_AUTO -1
#define AC3ENC_OPT_OFF 0
#define AC3ENC_OPT_ON 1
#define AC3ENC_OPT_NOT_INDICATED 0
#define AC3ENC_OPT_MODE_ON 1
#define AC3ENC_OPT_MODE_OFF 2
/* specific option values */
#define AC3ENC_OPT_LARGE_ROOM 1
#define AC3ENC_OPT_SMALL_ROOM 2
#define AC3ENC_OPT_DOWNMIX_LTRT 1
#define AC3ENC_OPT_DOWNMIX_LORO 2
#define AC3ENC_OPT_ADCONV_STANDARD 0
#define AC3ENC_OPT_ADCONV_HDCD 1
#include "ac3enc_opts_template.c"
static AVClass ac3enc_class = { "AC-3 Encoder", av_default_item_name,
eac3_options, LIBAVUTIL_VERSION_INT };
static av_cold AVCodec *get_codec(enum AVSampleFormat s){
#if CONFIG_AC3_FIXED_ENCODER
if(s==AV_SAMPLE_FMT_S16) return &ff_ac3_fixed_encoder;
#endif
#if CONFIG_AC3_FLOAT_ENCODER
if(s==AV_SAMPLE_FMT_FLT) return &ff_ac3_float_encoder;
#endif
return NULL;
}
static av_cold int encode_init(AVCodecContext *avctx)
{
CombineContext *c= avctx->priv_data;
int ret;
int offset= (uint8_t*)&c->options - (uint8_t*)c;
c->codec= get_codec(avctx->sample_fmt);
if(!c->codec){
av_log(avctx, AV_LOG_ERROR, "Unsupported sample format\n");
return -1;
}
c->ctx= av_mallocz(c->codec->priv_data_size);
memcpy((uint8_t*)c->ctx + offset, &c->options, (uint8_t*)&c->ctx - (uint8_t*)&c->options);
FFSWAP(void *,avctx->priv_data, c->ctx);
ret= c->codec->init(avctx);
FFSWAP(void *,avctx->priv_data, c->ctx);
return ret;
}
static int encode_frame(AVCodecContext *avctx, unsigned char *frame,
int buf_size, void *data)
{
CombineContext *c= avctx->priv_data;
int ret;
FFSWAP(void *,avctx->priv_data, c->ctx);
ret= c->codec->encode(avctx, frame, buf_size, data);
FFSWAP(void *,avctx->priv_data, c->ctx);
return ret;
}
static av_cold int encode_close(AVCodecContext *avctx)
{
CombineContext *c= avctx->priv_data;
int ret;
FFSWAP(void *,avctx->priv_data, c->ctx);
ret= c->codec->close(avctx);
FFSWAP(void *,avctx->priv_data, c->ctx);
return ret;
}
AVCodec ff_ac3_encoder = {
"ac3",
AVMEDIA_TYPE_AUDIO,
CODEC_ID_AC3,
sizeof(CombineContext),
encode_init,
encode_frame,
encode_close,
NULL,
.sample_fmts = (const enum AVSampleFormat[]){
#if CONFIG_AC3_FLOAT_ENCODER
AV_SAMPLE_FMT_FLT,
#endif
#if CONFIG_AC3_FIXED_ENCODER
AV_SAMPLE_FMT_S16,
#endif
AV_SAMPLE_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"),
.priv_class = &ac3enc_class,
.channel_layouts = ff_ac3_channel_layouts,
};

4
libavcodec/ac3enc_float.c
View File

@ -120,8 +120,8 @@ static void clip_coefficients(DSPContext *dsp, float *coef, unsigned int len)
#if CONFIG_AC3_ENCODER
AVCodec ff_ac3_float_encoder = {
.name = "ac3 float",
AVCodec ff_ac3_encoder = {
.name = "ac3",
.type = AVMEDIA_TYPE_AUDIO,
.id = CODEC_ID_AC3,
.priv_data_size = sizeof(AC3EncodeContext),

3
libavcodec/allcodecs.c
View File

@ -239,8 +239,7 @@ void avcodec_register_all(void)
REGISTER_ENCDEC (AAC, aac);
REGISTER_DECODER (AAC_LATM, aac_latm);
REGISTER_ENCDEC (AC3, ac3);
REGISTER_ENCODER (AC3_FIXED, ac3_fixed); //deprecated, just for libav compatibility
// REGISTER_ENCODER (AC3_FLOAT, ac3_float); dont remove dont outcomment, for configure
REGISTER_ENCODER (AC3_FIXED, ac3_fixed);
REGISTER_ENCDEC (ALAC, alac);
REGISTER_DECODER (ALS, als);
REGISTER_DECODER (AMRNB, amrnb);