dts.h
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上传日期:2015-12-05
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- /*
- * dts.h
- * Copyright (C) 2004 Gildas Bazin <gbazin@videolan.org>
- *
- * This file is part of dtsdec, a free DTS Coherent Acoustics stream decoder.
- * See http://www.videolan.org/dtsdec.html for updates.
- *
- * dtsdec 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 of the License, or
- * (at your option) any later version.
- *
- * dtsdec 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #ifndef DTS_H
- #define DTS_H
- #define LIBDTS_DOUBLE
- # ifdef __cplusplus
- extern "C" {
- # endif
- #if defined(LIBDTS_FIXED)
- typedef int32_t sample_t;
- typedef int32_t level_t;
- #elif defined(LIBDTS_DOUBLE)
- typedef double sample_t;
- typedef double level_t;
- #else
- typedef float sample_t;
- typedef float level_t;
- #endif
- typedef struct dts_state_s dts_state_t;
- #define DTS_MONO 0
- #define DTS_CHANNEL 1
- #define DTS_STEREO 2
- #define DTS_STEREO_SUMDIFF 3
- #define DTS_STEREO_TOTAL 4
- #define DTS_3F 5
- #define DTS_2F1R 6
- #define DTS_3F1R 7
- #define DTS_2F2R 8
- #define DTS_3F2R 9
- #define DTS_4F2R 10
- #define DTS_DOLBY 101 /* FIXME */
- #define DTS_CHANNEL_MAX DTS_3F2R /* We don't handle anything above that */
- #define DTS_CHANNEL_BITS 6
- #define DTS_CHANNEL_MASK 0x3F
- #define DTS_LFE 0x80
- #define DTS_ADJUST_LEVEL 0x100
- dts_state_t * dts_init (uint32_t mm_accel);
- int dts_syncinfo (dts_state_t *state, uint8_t * buf, int * flags,
- int * sample_rate, int * bit_rate, int *frame_length);
- int dts_frame (dts_state_t * state, uint8_t * buf, int * flags,
- level_t * level, sample_t bias);
- void dts_dynrng (dts_state_t * state,
- level_t (* call) (level_t, void *), void * data);
- int dts_blocks_num (dts_state_t * state);
- int dts_block (dts_state_t * state);
- sample_t * dts_samples (dts_state_t * state);
- void dts_free (dts_state_t * state);
- # ifdef __cplusplus
- }
- # endif
- #endif /* DTS_H */