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Diffstat (limited to 'apps/codecs/libwmapro/wma.h')
-rw-r--r-- | apps/codecs/libwmapro/wma.h | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/apps/codecs/libwmapro/wma.h b/apps/codecs/libwmapro/wma.h deleted file mode 100644 index 11274ad970..0000000000 --- a/apps/codecs/libwmapro/wma.h +++ /dev/null | |||
@@ -1,163 +0,0 @@ | |||
1 | /* | ||
2 | * WMA compatible codec | ||
3 | * Copyright (c) 2002-2007 The FFmpeg Project | ||
4 | * | ||
5 | * This file is part of FFmpeg. | ||
6 | * | ||
7 | * FFmpeg is free software; you can redistribute it and/or | ||
8 | * modify it under the terms of the GNU Lesser General Public | ||
9 | * License as published by the Free Software Foundation; either | ||
10 | * version 2.1 of the License, or (at your option) any later version. | ||
11 | * | ||
12 | * FFmpeg is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
15 | * Lesser General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU Lesser General Public | ||
18 | * License along with FFmpeg; if not, write to the Free Software | ||
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
20 | */ | ||
21 | |||
22 | #ifndef AVCODEC_WMA_H | ||
23 | #define AVCODEC_WMA_H | ||
24 | |||
25 | #include "get_bits.h" | ||
26 | #include "put_bits.h" | ||
27 | #include "dsputil.h" | ||
28 | #include "fft.h" | ||
29 | |||
30 | /* size of blocks */ | ||
31 | #define BLOCK_MIN_BITS 7 | ||
32 | #define BLOCK_MAX_BITS 11 | ||
33 | #define BLOCK_MAX_SIZE (1 << BLOCK_MAX_BITS) | ||
34 | |||
35 | #define BLOCK_NB_SIZES (BLOCK_MAX_BITS - BLOCK_MIN_BITS + 1) | ||
36 | |||
37 | /* XXX: find exact max size */ | ||
38 | #define HIGH_BAND_MAX_SIZE 16 | ||
39 | |||
40 | #define NB_LSP_COEFS 10 | ||
41 | |||
42 | /* XXX: is it a suitable value ? */ | ||
43 | #define MAX_CODED_SUPERFRAME_SIZE 16384 | ||
44 | |||
45 | #define MAX_CHANNELS 2 | ||
46 | |||
47 | #define NOISE_TAB_SIZE 8192 | ||
48 | |||
49 | #define LSP_POW_BITS 7 | ||
50 | |||
51 | //FIXME should be in wmadec | ||
52 | #define VLCBITS 9 | ||
53 | #define VLCMAX ((22+VLCBITS-1)/VLCBITS) | ||
54 | |||
55 | typedef float WMACoef; ///< type for decoded coefficients, int16_t would be enough for wma 1/2 | ||
56 | |||
57 | typedef struct CoefVLCTable { | ||
58 | int n; ///< total number of codes | ||
59 | int max_level; | ||
60 | const uint32_t *huffcodes; ///< VLC bit values | ||
61 | const uint8_t *huffbits; ///< VLC bit size | ||
62 | const uint16_t *levels; ///< table to build run/level tables | ||
63 | } CoefVLCTable; | ||
64 | |||
65 | typedef struct WMACodecContext { | ||
66 | AVCodecContext* avctx; | ||
67 | GetBitContext gb; | ||
68 | PutBitContext pb; | ||
69 | int sample_rate; | ||
70 | int nb_channels; | ||
71 | int bit_rate; | ||
72 | int version; ///< 1 = 0x160 (WMAV1), 2 = 0x161 (WMAV2) | ||
73 | int block_align; | ||
74 | int use_bit_reservoir; | ||
75 | int use_variable_block_len; | ||
76 | int use_exp_vlc; ///< exponent coding: 0 = lsp, 1 = vlc + delta | ||
77 | int use_noise_coding; ///< true if perceptual noise is added | ||
78 | int byte_offset_bits; | ||
79 | VLC exp_vlc; | ||
80 | int exponent_sizes[BLOCK_NB_SIZES]; | ||
81 | uint16_t exponent_bands[BLOCK_NB_SIZES][25]; | ||
82 | int high_band_start[BLOCK_NB_SIZES]; ///< index of first coef in high band | ||
83 | int coefs_start; ///< first coded coef | ||
84 | int coefs_end[BLOCK_NB_SIZES]; ///< max number of coded coefficients | ||
85 | int exponent_high_sizes[BLOCK_NB_SIZES]; | ||
86 | int exponent_high_bands[BLOCK_NB_SIZES][HIGH_BAND_MAX_SIZE]; | ||
87 | VLC hgain_vlc; | ||
88 | |||
89 | /* coded values in high bands */ | ||
90 | int high_band_coded[MAX_CHANNELS][HIGH_BAND_MAX_SIZE]; | ||
91 | int high_band_values[MAX_CHANNELS][HIGH_BAND_MAX_SIZE]; | ||
92 | |||
93 | /* there are two possible tables for spectral coefficients */ | ||
94 | //FIXME the following 3 tables should be shared between decoders | ||
95 | VLC coef_vlc[2]; | ||
96 | uint16_t *run_table[2]; | ||
97 | float *level_table[2]; | ||
98 | uint16_t *int_table[2]; | ||
99 | const CoefVLCTable *coef_vlcs[2]; | ||
100 | /* frame info */ | ||
101 | int frame_len; ///< frame length in samples | ||
102 | int frame_len_bits; ///< frame_len = 1 << frame_len_bits | ||
103 | int nb_block_sizes; ///< number of block sizes | ||
104 | /* block info */ | ||
105 | int reset_block_lengths; | ||
106 | int block_len_bits; ///< log2 of current block length | ||
107 | int next_block_len_bits; ///< log2 of next block length | ||
108 | int prev_block_len_bits; ///< log2 of prev block length | ||
109 | int block_len; ///< block length in samples | ||
110 | int block_num; ///< block number in current frame | ||
111 | int block_pos; ///< current position in frame | ||
112 | uint8_t ms_stereo; ///< true if mid/side stereo mode | ||
113 | uint8_t channel_coded[MAX_CHANNELS]; ///< true if channel is coded | ||
114 | int exponents_bsize[MAX_CHANNELS]; ///< log2 ratio frame/exp. length | ||
115 | DECLARE_ALIGNED(16, float, exponents)[MAX_CHANNELS][BLOCK_MAX_SIZE]; | ||
116 | float max_exponent[MAX_CHANNELS]; | ||
117 | WMACoef coefs1[MAX_CHANNELS][BLOCK_MAX_SIZE]; | ||
118 | DECLARE_ALIGNED(16, float, coefs)[MAX_CHANNELS][BLOCK_MAX_SIZE]; | ||
119 | DECLARE_ALIGNED(16, FFTSample, output)[BLOCK_MAX_SIZE * 2]; | ||
120 | FFTContext mdct_ctx[BLOCK_NB_SIZES]; | ||
121 | float *windows[BLOCK_NB_SIZES]; | ||
122 | /* output buffer for one frame and the last for IMDCT windowing */ | ||
123 | DECLARE_ALIGNED(16, float, frame_out)[MAX_CHANNELS][BLOCK_MAX_SIZE * 2]; | ||
124 | /* last frame info */ | ||
125 | uint8_t last_superframe[MAX_CODED_SUPERFRAME_SIZE + 4]; /* padding added */ | ||
126 | int last_bitoffset; | ||
127 | int last_superframe_len; | ||
128 | float noise_table[NOISE_TAB_SIZE]; | ||
129 | int noise_index; | ||
130 | float noise_mult; /* XXX: suppress that and integrate it in the noise array */ | ||
131 | /* lsp_to_curve tables */ | ||
132 | float lsp_cos_table[BLOCK_MAX_SIZE]; | ||
133 | float lsp_pow_e_table[256]; | ||
134 | float lsp_pow_m_table1[(1 << LSP_POW_BITS)]; | ||
135 | float lsp_pow_m_table2[(1 << LSP_POW_BITS)]; | ||
136 | DSPContext dsp; | ||
137 | |||
138 | #ifdef TRACE | ||
139 | int frame_count; | ||
140 | #endif | ||
141 | } WMACodecContext; | ||
142 | |||
143 | extern const uint16_t ff_wma_critical_freqs[25]; | ||
144 | extern const uint16_t ff_wma_hgain_huffcodes[37]; | ||
145 | extern const uint8_t ff_wma_hgain_huffbits[37]; | ||
146 | extern const float ff_wma_lsp_codebook[NB_LSP_COEFS][16]; | ||
147 | extern const uint32_t ff_aac_scalefactor_code[121]; | ||
148 | extern const uint8_t ff_aac_scalefactor_bits[121]; | ||
149 | |||
150 | int av_cold ff_wma_get_frame_len_bits(int sample_rate, int version, | ||
151 | unsigned int decode_flags); | ||
152 | int ff_wma_init(AVCodecContext * avctx, int flags2); | ||
153 | int ff_wma_total_gain_to_bits(int total_gain); | ||
154 | int ff_wma_end(AVCodecContext *avctx); | ||
155 | unsigned int ff_wma_get_large_val(GetBitContext* gb); | ||
156 | int ff_wma_run_level_decode(AVCodecContext* avctx, GetBitContext* gb, | ||
157 | VLC *vlc, | ||
158 | const float *level_table, const uint16_t *run_table, | ||
159 | int version, WMACoef *ptr, int offset, | ||
160 | int num_coefs, int block_len, int frame_len_bits, | ||
161 | int coef_nb_bits); | ||
162 | |||
163 | #endif /* AVCODEC_WMA_H */ | ||