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Diffstat (limited to 'src/libac3/downmix.h')
| -rw-r--r-- | src/libac3/downmix.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/libac3/downmix.h b/src/libac3/downmix.h new file mode 100644 index 000000000..7e6dea014 --- /dev/null +++ b/src/libac3/downmix.h @@ -0,0 +1,43 @@ +/* + * + * downmix.h + * + * Copyright (C) Aaron Holtzman - Sept 1999 + * + * Originally based on code by Yeqing Deng. + * + * This file is part of ac3dec, a free Dolby AC-3 stream decoder. + * + * ac3dec is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * ac3dec 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Make; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + */ + +typedef struct dm_par_s { + float unit; + float clev; + float slev; +} dm_par_t; + +void downmix_3f_2r_to_2ch (float *samples, dm_par_t * dm_par); +void downmix_3f_1r_to_2ch (float *samples, dm_par_t * dm_par); +void downmix_2f_2r_to_2ch (float *samples, dm_par_t * dm_par); +void downmix_2f_1r_to_2ch (float *samples, dm_par_t * dm_par); +void downmix_3f_0r_to_2ch (float *samples, dm_par_t * dm_par); + +void stream_sample_2ch_to_s16 (int16_t *s16_samples, float *left, float *right); +void stream_sample_1ch_to_s16 (int16_t *s16_samples, float *center); + + |