00001 /* 00002 * Common code between Nellymoser encoder and decoder 00003 * Copyright (c) 2007 a840bda5870ba11f19698ff6eb9581dfb0f95fa5, 00004 * 539459aeb7d425140b62a3ec7dbf6dc8e408a306, and 00005 * 520e17cd55896441042b14df2566a6eb610ed444 00006 * Copyright (c) 2007 Loic Minier <lool at dooz.org> 00007 * Benjamin Larsson 00008 * 00009 * Permission is hereby granted, free of charge, to any person obtaining a 00010 * copy of this software and associated documentation files (the "Software"), 00011 * to deal in the Software without restriction, including without limitation 00012 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 00013 * and/or sell copies of the Software, and to permit persons to whom the 00014 * Software is furnished to do so, subject to the following conditions: 00015 * 00016 * The above copyright notice and this permission notice shall be included in 00017 * all copies or substantial portions of the Software. 00018 * 00019 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00020 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00021 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 00022 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00023 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 00024 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 00025 * DEALINGS IN THE SOFTWARE. 00026 */ 00027 00034 #ifndef AVCODEC_NELLYMOSER_H 00035 #define AVCODEC_NELLYMOSER_H 00036 00037 #include "avcodec.h" 00038 00039 #define NELLY_BANDS 23 00040 #define NELLY_BLOCK_LEN 64 00041 #define NELLY_HEADER_BITS 116 00042 #define NELLY_DETAIL_BITS 198 00043 #define NELLY_BUF_LEN 128 00044 #define NELLY_FILL_LEN 124 00045 #define NELLY_BIT_CAP 6 00046 #define NELLY_BASE_OFF 4228 00047 #define NELLY_BASE_SHIFT 19 00048 #define NELLY_SAMPLES (2 * NELLY_BUF_LEN) 00049 00050 extern const float ff_nelly_dequantization_table[127]; 00051 extern const uint8_t ff_nelly_band_sizes_table[NELLY_BANDS]; 00052 extern const uint16_t ff_nelly_init_table[64]; 00053 extern const int16_t ff_nelly_delta_table[32]; 00054 00055 void ff_nelly_get_sample_bits(const float *buf, int *bits); 00056 00057 #endif /* AVCODEC_NELLYMOSER_H */
1.5.8