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remove a Huffman table from WMA which also exists in AAC

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Originally committed as revision 21902 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefan Gehrer 2010-02-19 20:42:55 +00:00
parent cdfc38f43b
commit 3a201bd04f
5 changed files with 10 additions and 48 deletions
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8
libavcodec/Makefile
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@ -339,10 +339,10 @@ OBJS-$(CONFIG_VP6_DECODER) += vp6.o vp56.o vp56data.o \
OBJS-$(CONFIG_VQA_DECODER) += vqavideo.o
OBJS-$(CONFIG_WAVPACK_DECODER) += wavpack.o
OBJS-$(CONFIG_WMAPRO_DECODER) += wmaprodec.o wma.o
OBJS-$(CONFIG_WMAV1_DECODER) += wmadec.o wma.o
OBJS-$(CONFIG_WMAV1_ENCODER) += wmaenc.o wma.o
OBJS-$(CONFIG_WMAV2_DECODER) += wmadec.o wma.o
OBJS-$(CONFIG_WMAV2_ENCODER) += wmaenc.o wma.o
OBJS-$(CONFIG_WMAV1_DECODER) += wmadec.o wma.o aactab.o
OBJS-$(CONFIG_WMAV1_ENCODER) += wmaenc.o wma.o aactab.o
OBJS-$(CONFIG_WMAV2_DECODER) += wmadec.o wma.o aactab.o
OBJS-$(CONFIG_WMAV2_ENCODER) += wmaenc.o wma.o aactab.o
OBJS-$(CONFIG_WMAVOICE_DECODER) += wmavoice.o \
celp_math.o celp_filters.o \
acelp_vectors.o acelp_filters.o \

4
libavcodec/wma.h
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@ -143,8 +143,8 @@ extern const uint16_t ff_wma_critical_freqs[25];
extern const uint16_t ff_wma_hgain_huffcodes[37];
extern const uint8_t ff_wma_hgain_huffbits[37];
extern const float ff_wma_lsp_codebook[NB_LSP_COEFS][16];
extern const uint32_t ff_wma_scale_huffcodes[121];
extern const uint8_t ff_wma_scale_huffbits[121];
extern const uint32_t ff_aac_scalefactor_code[121];
extern const uint8_t ff_aac_scalefactor_bits[121];
int av_cold ff_wma_get_frame_len_bits(int sample_rate, int version,
unsigned int decode_flags);

38
libavcodec/wmadata.h
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@ -92,44 +92,6 @@ const float ff_wma_lsp_codebook[NB_LSP_COEFS][16] = {
{ -1.56144989, -1.65944032, -1.72689685, -1.77857740, -1.82203011, -1.86220079, -1.90283983, -1.94820479, },
};
const uint32_t ff_wma_scale_huffcodes[121] = {
0x3ffe8, 0x3ffe6, 0x3ffe7, 0x3ffe5, 0x7fff5, 0x7fff1, 0x7ffed, 0x7fff6,
0x7ffee, 0x7ffef, 0x7fff0, 0x7fffc, 0x7fffd, 0x7ffff, 0x7fffe, 0x7fff7,
0x7fff8, 0x7fffb, 0x7fff9, 0x3ffe4, 0x7fffa, 0x3ffe3, 0x1ffef, 0x1fff0,
0x0fff5, 0x1ffee, 0x0fff2, 0x0fff3, 0x0fff4, 0x0fff1, 0x07ff6, 0x07ff7,
0x03ff9, 0x03ff5, 0x03ff7, 0x03ff3, 0x03ff6, 0x03ff2, 0x01ff7, 0x01ff5,
0x00ff9, 0x00ff7, 0x00ff6, 0x007f9, 0x00ff4, 0x007f8, 0x003f9, 0x003f7,
0x003f5, 0x001f8, 0x001f7, 0x000fa, 0x000f8, 0x000f6, 0x00079, 0x0003a,
0x00038, 0x0001a, 0x0000b, 0x00004, 0x00000, 0x0000a, 0x0000c, 0x0001b,
0x00039, 0x0003b, 0x00078, 0x0007a, 0x000f7, 0x000f9, 0x001f6, 0x001f9,
0x003f4, 0x003f6, 0x003f8, 0x007f5, 0x007f4, 0x007f6, 0x007f7, 0x00ff5,
0x00ff8, 0x01ff4, 0x01ff6, 0x01ff8, 0x03ff8, 0x03ff4, 0x0fff0, 0x07ff4,
0x0fff6, 0x07ff5, 0x3ffe2, 0x7ffd9, 0x7ffda, 0x7ffdb, 0x7ffdc, 0x7ffdd,
0x7ffde, 0x7ffd8, 0x7ffd2, 0x7ffd3, 0x7ffd4, 0x7ffd5, 0x7ffd6, 0x7fff2,
0x7ffdf, 0x7ffe7, 0x7ffe8, 0x7ffe9, 0x7ffea, 0x7ffeb, 0x7ffe6, 0x7ffe0,
0x7ffe1, 0x7ffe2, 0x7ffe3, 0x7ffe4, 0x7ffe5, 0x7ffd7, 0x7ffec, 0x7fff4,
0x7fff3,
};
const uint8_t ff_wma_scale_huffbits[121] = {
18, 18, 18, 18, 19, 19, 19, 19,
19, 19, 19, 19, 19, 19, 19, 19,
19, 19, 19, 18, 19, 18, 17, 17,
16, 17, 16, 16, 16, 16, 15, 15,
14, 14, 14, 14, 14, 14, 13, 13,
12, 12, 12, 11, 12, 11, 10, 10,
10, 9, 9, 8, 8, 8, 7, 6,
6, 5, 4, 3, 1, 4, 4, 5,
6, 6, 7, 7, 8, 8, 9, 9,
10, 10, 10, 11, 11, 11, 11, 12,
12, 13, 13, 13, 14, 14, 16, 15,
16, 15, 18, 19, 19, 19, 19, 19,
19, 19, 19, 19, 19, 19, 19, 19,
19, 19, 19, 19, 19, 19, 19, 19,
19, 19, 19, 19, 19, 19, 19, 19,
19,
};
static const uint32_t coef0_huffcodes[666] = {
0x00258, 0x0003d, 0x00000, 0x00005, 0x00008, 0x00008, 0x0000c, 0x0001b,
0x0001f, 0x00015, 0x00024, 0x00032, 0x0003a, 0x00026, 0x0002c, 0x0002f,

6
libavcodec/wmadec.c
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@ -116,9 +116,9 @@ static int wma_decode_init(AVCodecContext * avctx)
}
if (s->use_exp_vlc) {
init_vlc(&s->exp_vlc, EXPVLCBITS, sizeof(ff_wma_scale_huffbits), //FIXME move out of context
ff_wma_scale_huffbits, 1, 1,
ff_wma_scale_huffcodes, 4, 4, 0);
init_vlc(&s->exp_vlc, EXPVLCBITS, sizeof(ff_aac_scalefactor_bits), //FIXME move out of context
ff_aac_scalefactor_bits, 1, 1,
ff_aac_scalefactor_code, 4, 4, 0);
} else {
wma_lsp_to_curve_init(s, s->frame_len);
}

2
libavcodec/wmaenc.c
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@ -134,7 +134,7 @@ static void encode_exp_vlc(WMACodecContext *s, int ch, const int *exp_param){
int exp = *exp_param++;
int code = exp - last_exp + 60;
assert(code >= 0 && code < 120);
put_bits(&s->pb, ff_wma_scale_huffbits[code], ff_wma_scale_huffcodes[code]);
put_bits(&s->pb, ff_aac_scalefactor_bits[code], ff_aac_scalefactor_code[code]);
/* XXX: use a table */
q+= *ptr++;
last_exp= exp;