#include <wma.h>
Public Member Functions | |
| DECLARE_ALIGNED_16 (float, exponents[MAX_CHANNELS][BLOCK_MAX_SIZE]) | |
| DECLARE_ALIGNED_16 (float, coefs[MAX_CHANNELS][BLOCK_MAX_SIZE]) | |
| DECLARE_ALIGNED_16 (FFTSample, output[BLOCK_MAX_SIZE *2]) | |
| DECLARE_ALIGNED_16 (float, frame_out[MAX_CHANNELS][BLOCK_MAX_SIZE *2]) | |
Data Fields | |
| AVCodecContext * | avctx |
| GetBitContext | gb |
| PutBitContext | pb |
| int | sample_rate |
| int | nb_channels |
| int | bit_rate |
| int | version |
| 1 = 0x160 (WMAV1), 2 = 0x161 (WMAV2) | |
| int | block_align |
| int | use_bit_reservoir |
| int | use_variable_block_len |
| int | use_exp_vlc |
| exponent coding: 0 = lsp, 1 = vlc + delta | |
| int | use_noise_coding |
| true if perceptual noise is added | |
| int | byte_offset_bits |
| VLC | exp_vlc |
| int | exponent_sizes [BLOCK_NB_SIZES] |
| uint16_t | exponent_bands [BLOCK_NB_SIZES][25] |
| int | high_band_start [BLOCK_NB_SIZES] |
| index of first coef in high band | |
| int | coefs_start |
| first coded coef | |
| int | coefs_end [BLOCK_NB_SIZES] |
| max number of coded coefficients | |
| int | exponent_high_sizes [BLOCK_NB_SIZES] |
| int | exponent_high_bands [BLOCK_NB_SIZES][HIGH_BAND_MAX_SIZE] |
| VLC | hgain_vlc |
| int | high_band_coded [MAX_CHANNELS][HIGH_BAND_MAX_SIZE] |
| int | high_band_values [MAX_CHANNELS][HIGH_BAND_MAX_SIZE] |
| VLC | coef_vlc [2] |
| uint16_t * | run_table [2] |
| uint16_t * | level_table [2] |
| uint16_t * | int_table [2] |
| const CoefVLCTable * | coef_vlcs [2] |
| int | frame_len |
| frame length in samples | |
| int | frame_len_bits |
| frame_len = 1 << frame_len_bits | |
| int | nb_block_sizes |
| number of block sizes | |
| int | reset_block_lengths |
| int | block_len_bits |
| log2 of current block length | |
| int | next_block_len_bits |
| log2 of next block length | |
| int | prev_block_len_bits |
| log2 of prev block length | |
| int | block_len |
| block length in samples | |
| int | block_num |
| block number in current frame | |
| int | block_pos |
| current position in frame | |
| uint8_t | ms_stereo |
| true if mid/side stereo mode | |
| uint8_t | channel_coded [MAX_CHANNELS] |
| true if channel is coded | |
| int | exponents_bsize [MAX_CHANNELS] |
| log2 ratio frame/exp. length | |
| float | max_exponent [MAX_CHANNELS] |
| int16_t | coefs1 [MAX_CHANNELS][BLOCK_MAX_SIZE] |
| MDCTContext | mdct_ctx [BLOCK_NB_SIZES] |
| float * | windows [BLOCK_NB_SIZES] |
| uint8_t | last_superframe [MAX_CODED_SUPERFRAME_SIZE+4] |
| int | last_bitoffset |
| int | last_superframe_len |
| float | noise_table [NOISE_TAB_SIZE] |
| int | noise_index |
| float | noise_mult |
| float | lsp_cos_table [BLOCK_MAX_SIZE] |
| float | lsp_pow_e_table [256] |
| float | lsp_pow_m_table1 [(1<< LSP_POW_BITS)] |
| float | lsp_pow_m_table2 [(1<< LSP_POW_BITS)] |
| DSPContext | dsp |
Definition at line 61 of file wma.h.
| WMACodecContext::DECLARE_ALIGNED_16 | ( | float | , | |
| frame_out | [MAX_CHANNELS][BLOCK_MAX_SIZE *2] | |||
| ) |
| WMACodecContext::DECLARE_ALIGNED_16 | ( | FFTSample | , | |
| output | [BLOCK_MAX_SIZE *2] | |||
| ) |
| WMACodecContext::DECLARE_ALIGNED_16 | ( | float | , | |
| coefs | [MAX_CHANNELS][BLOCK_MAX_SIZE] | |||
| ) |
| WMACodecContext::DECLARE_ALIGNED_16 | ( | float | , | |
| exponents | [MAX_CHANNELS][BLOCK_MAX_SIZE] | |||
| ) |
Definition at line 62 of file wma.h.
Referenced by encode_block(), encode_init(), ff_wma_init(), wma_decode_block(), wma_decode_frame(), wma_decode_init(), and wma_decode_superframe().
Definition at line 69 of file wma.h.
Referenced by encode_frame(), encode_init(), encode_superframe(), ff_wma_init(), and wma_decode_superframe().
block length in samples
Definition at line 105 of file wma.h.
Referenced by decode_exp_lsp(), decode_exp_vlc(), encode_block(), encode_exp_vlc(), encode_superframe(), init_exp(), wma_decode_block(), and wma_window().
log2 of current block length
Definition at line 102 of file wma.h.
Referenced by apply_window_and_mdct(), decode_exp_vlc(), encode_block(), encode_exp_vlc(), encode_superframe(), init_exp(), wma_decode_block(), and wma_window().
block number in current frame
Definition at line 106 of file wma.h.
Referenced by wma_decode_block(), and wma_decode_frame().
current position in frame
Definition at line 107 of file wma.h.
Referenced by wma_decode_block(), and wma_decode_frame().
| uint8_t WMACodecContext::channel_coded[MAX_CHANNELS] |
true if channel is coded
Definition at line 109 of file wma.h.
Referenced by encode_block(), and wma_decode_block().
| const CoefVLCTable* WMACodecContext::coef_vlcs[2] |
| int16_t WMACodecContext::coefs1[MAX_CHANNELS][BLOCK_MAX_SIZE] |
| int WMACodecContext::coefs_end[BLOCK_NB_SIZES] |
max number of coded coefficients
Definition at line 80 of file wma.h.
Referenced by encode_block(), ff_wma_init(), and wma_decode_block().
first coded coef
Definition at line 79 of file wma.h.
Referenced by encode_block(), ff_wma_init(), and wma_decode_block().
Definition at line 75 of file wma.h.
Referenced by decode_exp_vlc(), ff_wma_end(), and wma_decode_init().
| uint16_t WMACodecContext::exponent_bands[BLOCK_NB_SIZES][25] |
Definition at line 77 of file wma.h.
Referenced by decode_exp_vlc(), encode_exp_vlc(), ff_wma_init(), and init_exp().
| int WMACodecContext::exponent_high_bands[BLOCK_NB_SIZES][HIGH_BAND_MAX_SIZE] |
Definition at line 82 of file wma.h.
Referenced by encode_block(), ff_wma_init(), and wma_decode_block().
| int WMACodecContext::exponent_high_sizes[BLOCK_NB_SIZES] |
Definition at line 81 of file wma.h.
Referenced by encode_block(), ff_wma_init(), and wma_decode_block().
| int WMACodecContext::exponent_sizes[BLOCK_NB_SIZES] |
| int WMACodecContext::exponents_bsize[MAX_CHANNELS] |
log2 ratio frame/exp. length
Definition at line 110 of file wma.h.
Referenced by wma_decode_block().
frame length in samples
Definition at line 97 of file wma.h.
Referenced by encode_init(), ff_wma_init(), wma_decode_block(), wma_decode_frame(), wma_decode_init(), and wma_decode_superframe().
frame_len = 1 << frame_len_bits
Definition at line 98 of file wma.h.
Referenced by apply_window_and_mdct(), decode_exp_vlc(), encode_block(), encode_exp_vlc(), encode_init(), encode_superframe(), ff_wma_init(), init_exp(), wma_decode_block(), wma_decode_init(), and wma_window().
Definition at line 63 of file wma.h.
Referenced by decode_exp_lsp(), decode_exp_vlc(), wma_decode_block(), and wma_decode_superframe().
Definition at line 83 of file wma.h.
Referenced by ff_wma_end(), wma_decode_block(), and wma_decode_init().
| int WMACodecContext::high_band_coded[MAX_CHANNELS][HIGH_BAND_MAX_SIZE] |
| int WMACodecContext::high_band_start[BLOCK_NB_SIZES] |
index of first coef in high band
Definition at line 78 of file wma.h.
Referenced by ff_wma_init(), and wma_decode_block().
| int WMACodecContext::high_band_values[MAX_CHANNELS][HIGH_BAND_MAX_SIZE] |
| uint16_t* WMACodecContext::int_table[2] |
| uint8_t WMACodecContext::last_superframe[MAX_CODED_SUPERFRAME_SIZE+4] |
| uint16_t* WMACodecContext::level_table[2] |
| float WMACodecContext::lsp_cos_table[BLOCK_MAX_SIZE] |
Definition at line 128 of file wma.h.
Referenced by wma_lsp_to_curve(), and wma_lsp_to_curve_init().
| float WMACodecContext::lsp_pow_e_table[256] |
| float WMACodecContext::lsp_pow_m_table1[(1<< LSP_POW_BITS)] |
| float WMACodecContext::lsp_pow_m_table2[(1<< LSP_POW_BITS)] |
| float WMACodecContext::max_exponent[MAX_CHANNELS] |
Definition at line 112 of file wma.h.
Referenced by decode_exp_lsp(), decode_exp_vlc(), encode_block(), init_exp(), and wma_decode_block().
| MDCTContext WMACodecContext::mdct_ctx[BLOCK_NB_SIZES] |
Definition at line 116 of file wma.h.
Referenced by apply_window_and_mdct(), encode_init(), ff_wma_end(), wma_decode_block(), and wma_decode_init().
| uint8_t WMACodecContext::ms_stereo |
true if mid/side stereo mode
Definition at line 108 of file wma.h.
Referenced by encode_block(), encode_superframe(), and wma_decode_block().
number of block sizes
Definition at line 99 of file wma.h.
Referenced by encode_init(), ff_wma_end(), ff_wma_init(), wma_decode_block(), and wma_decode_init().
Definition at line 66 of file wma.h.
Referenced by encode_block(), ff_wma_init(), wma_decode_block(), wma_decode_frame(), and wma_decode_superframe().
log2 of next block length
Definition at line 103 of file wma.h.
Referenced by encode_block(), wma_decode_block(), and wma_window().
| float WMACodecContext::noise_table[NOISE_TAB_SIZE] |
Definition at line 64 of file wma.h.
Referenced by encode_block(), encode_exp_vlc(), encode_frame(), and encode_superframe().
log2 of prev block length
Definition at line 104 of file wma.h.
Referenced by encode_block(), wma_decode_block(), and wma_window().
Definition at line 101 of file wma.h.
Referenced by ff_wma_init(), wma_decode_block(), and wma_decode_superframe().
| uint16_t* WMACodecContext::run_table[2] |
Definition at line 70 of file wma.h.
Referenced by encode_frame(), encode_init(), wma_decode_init(), and wma_decode_superframe().
exponent coding: 0 = lsp, 1 = vlc + delta
Definition at line 72 of file wma.h.
Referenced by encode_block(), encode_init(), ff_wma_end(), ff_wma_init(), wma_decode_block(), and wma_decode_init().
true if perceptual noise is added
Definition at line 73 of file wma.h.
Referenced by encode_block(), ff_wma_end(), ff_wma_init(), wma_decode_block(), and wma_decode_init().
Definition at line 71 of file wma.h.
Referenced by encode_block(), encode_init(), ff_wma_init(), wma_decode_block(), and wma_decode_init().
1 = 0x160 (WMAV1), 2 = 0x161 (WMAV2)
Definition at line 68 of file wma.h.
Referenced by decode_exp_vlc(), encode_block(), encode_exp_vlc(), ff_wma_init(), and wma_decode_block().
| float* WMACodecContext::windows[BLOCK_NB_SIZES] |
Definition at line 117 of file wma.h.
Referenced by apply_window_and_mdct(), ff_wma_init(), and wma_window().
1.5.8