Libav 0.7.1
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00001 /* 00002 * This file is part of Libav. 00003 * 00004 * Libav is free software; you can redistribute it and/or 00005 * modify it under the terms of the GNU Lesser General Public 00006 * License as published by the Free Software Foundation; either 00007 * version 2.1 of the License, or (at your option) any later version. 00008 * 00009 * Libav is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 * Lesser General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU Lesser General Public 00015 * License along with Libav; if not, write to the Free Software 00016 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00017 */ 00018 00019 #ifndef AVCODEC_MPEGAUDIODSP_H 00020 #define AVCODEC_MPEGAUDIODSP_H 00021 00022 #include <stdint.h> 00023 00024 typedef struct MPADSPContext { 00025 void (*apply_window_float)(float *synth_buf, float *window, 00026 int *dither_state, float *samples, int incr); 00027 void (*apply_window_fixed)(int32_t *synth_buf, int32_t *window, 00028 int *dither_state, int16_t *samples, int incr); 00029 void (*dct32_float)(float *dst, const float *src); 00030 void (*dct32_fixed)(int *dst, const int *src); 00031 } MPADSPContext; 00032 00033 void ff_mpadsp_init(MPADSPContext *s); 00034 00035 extern int32_t ff_mpa_synth_window_fixed[]; 00036 extern float ff_mpa_synth_window_float[]; 00037 00038 void ff_mpa_synth_filter_fixed(MPADSPContext *s, 00039 int32_t *synth_buf_ptr, int *synth_buf_offset, 00040 int32_t *window, int *dither_state, 00041 int16_t *samples, int incr, 00042 int32_t *sb_samples); 00043 00044 void ff_mpa_synth_filter_float(MPADSPContext *s, 00045 float *synth_buf_ptr, int *synth_buf_offset, 00046 float *window, int *dither_state, 00047 float *samples, int incr, 00048 float *sb_samples); 00049 00050 void ff_mpadsp_init_arm(MPADSPContext *s); 00051 void ff_mpadsp_init_mmx(MPADSPContext *s); 00052 void ff_mpadsp_init_altivec(MPADSPContext *s); 00053 00054 void ff_mpa_synth_init_float(float *window); 00055 void ff_mpa_synth_init_fixed(int32_t *window); 00056 00057 void ff_mpadsp_apply_window_float(float *synth_buf, float *window, 00058 int *dither_state, float *samples, 00059 int incr); 00060 void ff_mpadsp_apply_window_fixed(int32_t *synth_buf, int32_t *window, 00061 int *dither_state, int16_t *samples, 00062 int incr); 00063 00064 #endif /* AVCODEC_MPEGAUDIODSP_H */