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g723.1 encoder

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Mohamed Naufal 2011-10-10 02:48:34 +02:00 committed by Michael Niedermayer
parent 19562b68cb
commit ef64c45c94
4 changed files with 1218 additions and 1 deletions
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1
libavcodec/Makefile
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@ -161,6 +161,7 @@ OBJS-$(CONFIG_FRAPS_DECODER) += fraps.o
OBJS-$(CONFIG_FRWU_DECODER) += frwu.o
OBJS-$(CONFIG_G723_1_DECODER) += g723_1.o acelp_vectors.o \
celp_filters.o celp_math.o
OBJS-$(CONFIG_G723_1_ENCODER) += g723_1.o
OBJS-$(CONFIG_G729_DECODER) += g729dec.o lsp.o celp_math.o acelp_filters.o acelp_pitch_delay.o acelp_vectors.o g729postfilter.o
OBJS-$(CONFIG_GIF_DECODER) += gifdec.o lzw.o
OBJS-$(CONFIG_GIF_ENCODER) += gif.o lzwenc.o

2
libavcodec/allcodecs.c
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@ -258,7 +258,7 @@ void avcodec_register_all(void)
REGISTER_DECODER (DSICINAUDIO, dsicinaudio);
REGISTER_ENCDEC (EAC3, eac3);
REGISTER_ENCDEC (FLAC, flac);
REGISTER_DECODER (G723_1, g723_1);
REGISTER_ENCDEC (G723_1, g723_1);
REGISTER_DECODER (G729, g729);
REGISTER_DECODER (GSM, gsm);
REGISTER_DECODER (GSM_MS, gsm_ms);

1146
libavcodec/g723_1.c
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File diff suppressed because it is too large Load Diff

70
libavcodec/g723_1_data.h
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@ -28,6 +28,8 @@
#define SUBFRAMES 4
#define SUBFRAME_LEN 60
#define FRAME_LEN (SUBFRAME_LEN << 2)
#define HALF_FRAME_LEN (FRAME_LEN / 2)
#define LPC_FRAME (HALF_FRAME_LEN + SUBFRAME_LEN)
#define LPC_ORDER 10
#define LSP_BANDS 3
#define LSP_CB_SIZE 256
@ -77,6 +79,26 @@ typedef struct {
int16_t sc_gain; ///< scaling gain
} PPFParam;
/**
* Harmonic filter parameters
*/
typedef struct {
int index;
int gain;
} HFParam;
/**
* Optimized fixed codebook excitation parameters
*/
typedef struct {
int min_err;
int amp_index;
int grid_index;
int dirac_train;
int pulse_pos[PULSE_MAX];
int pulse_sign[PULSE_MAX];
} FCBParam;
/**
* Postfilter gain weighting factors scaled by 2^15
*/
@ -1243,3 +1265,51 @@ static const int16_t postfilter_tbl[2][LPC_ORDER] = {
/* Pole */
{24576, 18432, 13824, 10368, 7776, 5832, 4374, 3281, 2460, 1845}
};
/**
* Hamming window coefficients scaled by 2^15
*/
static const int16_t hamming_window[LPC_FRAME] = {
2621, 2631, 2659, 2705, 2770, 2853, 2955, 3074, 3212, 3367,
3541, 3731, 3939, 4164, 4405, 4663, 4937, 5226, 5531, 5851,
6186, 6534, 6897, 7273, 7661, 8062, 8475, 8899, 9334, 9780,
10235, 10699, 11172, 11653, 12141, 12636, 13138, 13645, 14157, 14673,
15193, 15716, 16242, 16769, 17298, 17827, 18356, 18884, 19411, 19935,
20457, 20975, 21489, 21999, 22503, 23002, 23494, 23978, 24455, 24924,
25384, 25834, 26274, 26704, 27122, 27529, 27924, 28306, 28675, 29031,
29373, 29700, 30012, 30310, 30592, 30857, 31107, 31340, 31557, 31756,
31938, 32102, 32249, 32377, 32488, 32580, 32654, 32710, 32747, 32766,
32766, 32747, 32710, 32654, 32580, 32488, 32377, 32249, 32102, 31938,
31756, 31557, 31340, 31107, 30857, 30592, 30310, 30012, 29700, 29373,
29031, 28675, 28306, 27924, 27529, 27122, 26704, 26274, 25834, 25384,
24924, 24455, 23978, 23494, 23002, 22503, 21999, 21489, 20975, 20457,
19935, 19411, 18884, 18356, 17827, 17298, 16769, 16242, 15716, 15193,
14673, 14157, 13645, 13138, 12636, 12141, 11653, 11172, 10699, 10235,
9780, 9334, 8899, 8475, 8062, 7661, 7273, 6897, 6534, 6186,
5851, 5531, 5226, 4937, 4663, 4405, 4164, 3939, 3731, 3541,
3367, 3212, 3074, 2955, 2853, 2770, 2705, 2659, 2631, 2621
};
/**
* Binomial window coefficients scaled by 2^15
*/
static const int16_t binomial_window[LPC_ORDER] = {
32749, 32695, 32604, 32477, 32315, 32118, 31887, 31622, 31324, 30995
};
/**
* 0.994^i scaled by 2^15
*/
static const int16_t bandwidth_expand[LPC_ORDER] = {
32571, 32376, 32182, 31989, 31797, 31606, 31416, 31228, 31040, 30854
};
/**
* 0.5^i scaled by 2^15
*/
static const int16_t percept_flt_tbl[2][LPC_ORDER] = {
/* Zero part */
{29491, 26542, 23888, 21499, 19349, 17414, 15673, 14106, 12695, 11425},
/* Pole part */
{16384, 8192, 4096, 2048, 1024, 512, 256, 128, 64, 32}
};