diff options
author | Zdenek Kabelac <kabi@informatics.muni.cz> | 2002-04-22 10:27:25 +0000 |
---|---|---|
committer | Zdenek Kabelac <kabi@informatics.muni.cz> | 2002-04-22 10:27:25 +0000 |
commit | 976f969b24f109fa7a6fabaf0e85fb654ed7abb9 (patch) | |
tree | 3569a55bcf4f57cb2b08644ed7265e156423cf68 /libavcodec/liba52/a52.h | |
parent | ee6f786146e08da970f92c0b80b71b2e85fbd96c (diff) | |
download | ffmpeg-streaming-976f969b24f109fa7a6fabaf0e85fb654ed7abb9.zip ffmpeg-streaming-976f969b24f109fa7a6fabaf0e85fb654ed7abb9.tar.gz |
* add support for liba52
Originally committed as revision 411 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/liba52/a52.h')
-rw-r--r-- | libavcodec/liba52/a52.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/libavcodec/liba52/a52.h b/libavcodec/liba52/a52.h new file mode 100644 index 0000000..9db52cc --- /dev/null +++ b/libavcodec/liba52/a52.h @@ -0,0 +1,62 @@ +/* + * a52.h + * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org> + * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca> + * + * This file is part of a52dec, a free ATSC A-52 stream decoder. + * See http://liba52.sourceforge.net/ for updates. + * + * a52dec 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. + * + * a52dec 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 A52_H +#define A52_H + +#ifndef LIBA52_DOUBLE +typedef float sample_t; +#else +typedef double sample_t; +#endif + +typedef struct a52_state_s a52_state_t; + +#define A52_CHANNEL 0 +#define A52_MONO 1 +#define A52_STEREO 2 +#define A52_3F 3 +#define A52_2F1R 4 +#define A52_3F1R 5 +#define A52_2F2R 6 +#define A52_3F2R 7 +#define A52_CHANNEL1 8 +#define A52_CHANNEL2 9 +#define A52_DOLBY 10 +#define A52_CHANNEL_MASK 15 + +#define A52_LFE 16 +#define A52_ADJUST_LEVEL 32 + +a52_state_t * a52_init (uint32_t mm_accel); +sample_t * a52_samples (a52_state_t * state); +int a52_syncinfo (uint8_t * buf, int * flags, + int * sample_rate, int * bit_rate); +int a52_frame (a52_state_t * state, uint8_t * buf, int * flags, + sample_t * level, sample_t bias); +void a52_dynrng (a52_state_t * state, + sample_t (* call) (sample_t, void *), void * data); +int a52_block (a52_state_t * state); +void a52_free (a52_state_t * state); + +#endif /* A52_H */ |