#ifndef AVCODEC_AAC_H
#define AVCODEC_AAC_H
+#ifndef USE_FIXED
+#define USE_FIXED 0
+#endif
+
+#if USE_FIXED
+
+#include "libavutil/softfloat.h"
+
+#define FFT_FLOAT 0
+#define FFT_FIXED_32 1
+
+#define AAC_RENAME(x) x ## _fixed
+#define AAC_RENAME_32(x) x ## _fixed_32
+#define AAC_FLOAT SoftFloat
+#define INTFLOAT int
+#define SHORTFLOAT int16_t
+#define AAC_SIGNE int
+#define FIXR(a) ((int)((a) * 1 + 0.5))
+#define FIXR10(a) ((int)((a) * 1024.0 + 0.5))
+#define Q23(a) (int)((a) * 8388608.0 + 0.5)
+#define Q30(x) (int)((x)*1073741824.0 + 0.5)
+#define Q31(x) (int)((x)*2147483648.0 + 0.5)
+#define RANGE15(x) x
+#define GET_GAIN(x, y) (-(y) << (x)) + 1024
+#define AAC_MUL26(x, y) (int)(((int64_t)(x) * (y) + 0x2000000) >> 26)
+#define AAC_MUL30(x, y) (int)(((int64_t)(x) * (y) + 0x20000000) >> 30)
+#define AAC_MUL31(x, y) (int)(((int64_t)(x) * (y) + 0x40000000) >> 31)
+
+#else
+
+#define FFT_FLOAT 1
+#define FFT_FIXED_32 0
+
+#define AAC_RENAME(x) x
+#define AAC_RENAME_32(x) x
+#define AAC_FLOAT float
+#define INTFLOAT float
+#define SHORTFLOAT float
+#define AAC_SIGNE unsigned
+#define FIXR(x) ((float)(x))
+#define FIXR10(x) ((float)(x))
+#define Q23(x) x
+#define Q30(x) x
+#define Q31(x) x
+#define RANGE15(x) (32768.0 * (x))
+#define GET_GAIN(x, y) powf((x), -(y))
+#define AAC_MUL26(x, y) ((x) * (y))
+#define AAC_MUL30(x, y) ((x) * (y))
+#define AAC_MUL31(x, y) ((x) * (y))
+
+#endif /* USE_FIXED */
+
#include "libavutil/float_dsp.h"
+#include "libavutil/fixed_dsp.h"
#include "avcodec.h"
+#if !USE_FIXED
#include "imdct15.h"
+#endif
#include "fft.h"
#include "mpeg4audio.h"
#include "sbr.h"
* Predictor State
*/
typedef struct PredictorState {
- float cor0;
- float cor1;
- float var0;
- float var1;
- float r0;
- float r1;
+ AAC_FLOAT cor0;
+ AAC_FLOAT cor1;
+ AAC_FLOAT var0;
+ AAC_FLOAT var1;
+ AAC_FLOAT r0;
+ AAC_FLOAT r1;
} PredictorState;
#define MAX_PREDICTORS 672
typedef struct LongTermPrediction {
int8_t present;
int16_t lag;
- float coef;
+ INTFLOAT coef;
int8_t used[MAX_LTP_LONG_SFB];
} LongTermPrediction;
int length[8][4];
int direction[8][4];
int order[8][4];
- float coef[8][4][TNS_MAX_ORDER];
+ INTFLOAT coef[8][4][TNS_MAX_ORDER];
} TemporalNoiseShaping;
/**
int ch_select[8]; /**< [0] shared list of gains; [1] list of gains for right channel;
* [2] list of gains for left channel; [3] lists of gains for both channels
*/
- float gain[16][120];
+ INTFLOAT gain[16][120];
} ChannelCoupling;
/**
Pulse pulse;
enum BandType band_type[128]; ///< band types
int band_type_run_end[120]; ///< band type run end points
- float sf[120]; ///< scalefactors
+ INTFLOAT sf[120]; ///< scalefactors
int sf_idx[128]; ///< scalefactor indices (used by encoder)
uint8_t zeroes[128]; ///< band is not coded (used by encoder)
float is_ener[128]; ///< Intensity stereo pos (used by encoder)
float pns_ener[128]; ///< Noise energy values (used by encoder)
- DECLARE_ALIGNED(32, float, pcoeffs)[1024]; ///< coefficients for IMDCT, pristine
- DECLARE_ALIGNED(32, float, coeffs)[1024]; ///< coefficients for IMDCT, maybe processed
- DECLARE_ALIGNED(32, float, saved)[1536]; ///< overlap
- DECLARE_ALIGNED(32, float, ret_buf)[2048]; ///< PCM output buffer
- DECLARE_ALIGNED(16, float, ltp_state)[3072]; ///< time signal for LTP
+ DECLARE_ALIGNED(32, INTFLOAT, pcoeffs)[1024]; ///< coefficients for IMDCT, pristine
+ DECLARE_ALIGNED(32, INTFLOAT, coeffs)[1024]; ///< coefficients for IMDCT, maybe processed
+ DECLARE_ALIGNED(32, INTFLOAT, saved)[1536]; ///< overlap
+ DECLARE_ALIGNED(32, INTFLOAT, ret_buf)[2048]; ///< PCM output buffer
+ DECLARE_ALIGNED(16, INTFLOAT, ltp_state)[3072]; ///< time signal for LTP
PredictorState predictor_state[MAX_PREDICTORS];
- float *ret; ///< PCM output
+ INTFLOAT *ret; ///< PCM output
} SingleChannelElement;
/**
* (We do not want to have these on the stack.)
* @{
*/
- DECLARE_ALIGNED(32, float, buf_mdct)[1024];
+ DECLARE_ALIGNED(32, INTFLOAT, buf_mdct)[1024];
/** @} */
/**
FFTContext mdct_small;
FFTContext mdct_ld;
FFTContext mdct_ltp;
+#if USE_FIXED
+ AVFixedDSPContext *fdsp;
+#else
IMDCT15Context *mdct480;
AVFloatDSPContext *fdsp;
+#endif /* USE_FIXED */
int random_state;
/** @} */
int dmono_mode; ///< 0->not dmono, 1->use first channel, 2->use second channel
/** @} */
- DECLARE_ALIGNED(32, float, temp)[128];
+ DECLARE_ALIGNED(32, INTFLOAT, temp)[128];
OutputConfiguration oc[2];
int warned_num_aac_frames;
/* aacdec functions pointers */
void (*imdct_and_windowing)(AACContext *ac, SingleChannelElement *sce);
void (*apply_ltp)(AACContext *ac, SingleChannelElement *sce);
- void (*apply_tns)(float coef[1024], TemporalNoiseShaping *tns,
+ void (*apply_tns)(INTFLOAT coef[1024], TemporalNoiseShaping *tns,
IndividualChannelStream *ics, int decode);
- void (*windowing_and_mdct_ltp)(AACContext *ac, float *out,
- float *in, IndividualChannelStream *ics);
+ void (*windowing_and_mdct_ltp)(AACContext *ac, INTFLOAT *out,
+ INTFLOAT *in, IndividualChannelStream *ics);
void (*update_ltp)(AACContext *ac, SingleChannelElement *sce);
+ void (*vector_pow43)(int *coefs, int len);
+ void (*subband_scale)(int *dst, int *src, int scale, int offset, int len);
};
projects / ffmpeg / blobdiff