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Diffstat (limited to 'contrib/ffmpeg/libavcodec/wma.h')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/wma.h | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/contrib/ffmpeg/libavcodec/wma.h b/contrib/ffmpeg/libavcodec/wma.h deleted file mode 100644 index cd4daa7e5..000000000 --- a/contrib/ffmpeg/libavcodec/wma.h +++ /dev/null @@ -1,149 +0,0 @@ -/* - * WMA compatible codec - * Copyright (c) 2002-2007 The FFmpeg Project. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef WMA_H -#define WMA_H - -#include "bitstream.h" -#include "dsputil.h" - -/* size of blocks */ -#define BLOCK_MIN_BITS 7 -#define BLOCK_MAX_BITS 11 -#define BLOCK_MAX_SIZE (1 << BLOCK_MAX_BITS) - -#define BLOCK_NB_SIZES (BLOCK_MAX_BITS - BLOCK_MIN_BITS + 1) - -/* XXX: find exact max size */ -#define HIGH_BAND_MAX_SIZE 16 - -#define NB_LSP_COEFS 10 - -/* XXX: is it a suitable value ? */ -#define MAX_CODED_SUPERFRAME_SIZE 16384 - -#define MAX_CHANNELS 2 - -#define NOISE_TAB_SIZE 8192 - -#define LSP_POW_BITS 7 - -//FIXME should be in wmadec -#define VLCBITS 9 -#define VLCMAX ((22+VLCBITS-1)/VLCBITS) - -typedef struct CoefVLCTable { - int n; ///< total number of codes - int max_level; - const uint32_t *huffcodes; ///< VLC bit values - const uint8_t *huffbits; ///< VLC bit size - const uint16_t *levels; ///< table to build run/level tables -} CoefVLCTable; - -typedef struct WMACodecContext { - 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; - - /* coded values in high bands */ - int high_band_coded[MAX_CHANNELS][HIGH_BAND_MAX_SIZE]; - int high_band_values[MAX_CHANNELS][HIGH_BAND_MAX_SIZE]; - - /* there are two possible tables for spectral coefficients */ -//FIXME the following 3 tables should be shared between decoders - VLC coef_vlc[2]; - uint16_t *run_table[2]; - uint16_t *level_table[2]; - uint16_t *int_table[2]; - CoefVLCTable *coef_vlcs[2]; - /* frame info */ - 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 - /* block info */ - 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 - DECLARE_ALIGNED_16(float, exponents[MAX_CHANNELS][BLOCK_MAX_SIZE]); - float max_exponent[MAX_CHANNELS]; - int16_t coefs1[MAX_CHANNELS][BLOCK_MAX_SIZE]; - DECLARE_ALIGNED_16(float, coefs[MAX_CHANNELS][BLOCK_MAX_SIZE]); - DECLARE_ALIGNED_16(FFTSample, output[BLOCK_MAX_SIZE * 2]); - MDCTContext mdct_ctx[BLOCK_NB_SIZES]; - float *windows[BLOCK_NB_SIZES]; - DECLARE_ALIGNED_16(FFTSample, mdct_tmp[BLOCK_MAX_SIZE]); ///< temporary storage for imdct - /* output buffer for one frame and the last for IMDCT windowing */ - DECLARE_ALIGNED_16(float, frame_out[MAX_CHANNELS][BLOCK_MAX_SIZE * 2]); - /* last frame info */ - uint8_t last_superframe[MAX_CODED_SUPERFRAME_SIZE + 4]; /* padding added */ - int last_bitoffset; - int last_superframe_len; - float noise_table[NOISE_TAB_SIZE]; - int noise_index; - float noise_mult; /* XXX: suppress that and integrate it in the noise array */ - /* lsp_to_curve tables */ - 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; - -#ifdef TRACE - int frame_count; -#endif -} WMACodecContext; - -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]; - -int ff_wma_init(AVCodecContext * avctx, int flags2); -int ff_wma_total_gain_to_bits(int total_gain); -int ff_wma_end(AVCodecContext *avctx); - -#endif |