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Diffstat (limited to '')
| -rw-r--r-- | media/ffvpx/libavcodec/mpegaudiodsp.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/mpegaudiodsp.h b/media/ffvpx/libavcodec/mpegaudiodsp.h new file mode 100644 index 0000000000..7bc635191a --- /dev/null +++ b/media/ffvpx/libavcodec/mpegaudiodsp.h @@ -0,0 +1,92 @@ +/* + * 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 AVCODEC_MPEGAUDIODSP_H +#define AVCODEC_MPEGAUDIODSP_H + +#include <stddef.h> +#include <stdint.h> + +#include "libavutil/macros.h" + +typedef struct MPADSPContext { + void (*apply_window_float)(float *synth_buf, float *window, + int *dither_state, float *samples, + ptrdiff_t incr); + void (*apply_window_fixed)(int32_t *synth_buf, int32_t *window, + int *dither_state, int16_t *samples, + ptrdiff_t incr); + void (*dct32_float)(float *dst, const float *src); + void (*dct32_fixed)(int *dst, const int *src); + + void (*imdct36_blocks_float)(float *out, float *buf, float *in, + int count, int switch_point, int block_type); + void (*imdct36_blocks_fixed)(int *out, int *buf, int *in, + int count, int switch_point, int block_type); +} MPADSPContext; + +void ff_mpadsp_init(MPADSPContext *s); + +extern int32_t ff_mpa_synth_window_fixed[]; +extern float ff_mpa_synth_window_float[]; + +extern const int32_t ff_mpa_enwindow[257]; + +void ff_mpa_synth_filter_fixed(MPADSPContext *s, + int32_t *synth_buf_ptr, int *synth_buf_offset, + int32_t *window, int *dither_state, + int16_t *samples, ptrdiff_t incr, + int32_t *sb_samples); + +void ff_mpa_synth_filter_float(MPADSPContext *s, + float *synth_buf_ptr, int *synth_buf_offset, + float *window, int *dither_state, + float *samples, ptrdiff_t incr, + float *sb_samples); + +void ff_mpadsp_init_aarch64(MPADSPContext *s); +void ff_mpadsp_init_arm(MPADSPContext *s); +void ff_mpadsp_init_ppc(MPADSPContext *s); +void ff_mpadsp_init_x86(MPADSPContext *s); +void ff_mpadsp_init_x86_tabs(void); +void ff_mpadsp_init_mipsfpu(MPADSPContext *s); +void ff_mpadsp_init_mipsdsp(MPADSPContext *s); + +void ff_mpa_synth_init_float(void); +void ff_mpa_synth_init_fixed(void); + +void ff_mpadsp_apply_window_float(float *synth_buf, float *window, + int *dither_state, float *samples, + ptrdiff_t incr); +void ff_mpadsp_apply_window_fixed(int32_t *synth_buf, int32_t *window, + int *dither_state, int16_t *samples, + ptrdiff_t incr); + +void ff_imdct36_blocks_float(float *out, float *buf, float *in, + int count, int switch_point, int block_type); + +void ff_imdct36_blocks_fixed(int *out, int *buf, int *in, + int count, int switch_point, int block_type); + +/** For SSE implementation, MDCT_BUF_SIZE/2 should be 128-bit aligned */ +#define MDCT_BUF_SIZE FFALIGN(36, 2*4) + +extern int ff_mdct_win_fixed[8][MDCT_BUF_SIZE]; +extern float ff_mdct_win_float[8][MDCT_BUF_SIZE]; + +#endif /* AVCODEC_MPEGAUDIODSP_H */ |