libavutil/samplefmt.h
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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 AVUTIL_SAMPLEFMT_H
00020 #define AVUTIL_SAMPLEFMT_H
00021 
00022 #include "avutil.h"
00023 
00027 enum AVSampleFormat {
00028     AV_SAMPLE_FMT_NONE = -1,
00029     AV_SAMPLE_FMT_U8,          
00030     AV_SAMPLE_FMT_S16,         
00031     AV_SAMPLE_FMT_S32,         
00032     AV_SAMPLE_FMT_FLT,         
00033     AV_SAMPLE_FMT_DBL,         
00034 
00035     AV_SAMPLE_FMT_U8P,         
00036     AV_SAMPLE_FMT_S16P,        
00037     AV_SAMPLE_FMT_S32P,        
00038     AV_SAMPLE_FMT_FLTP,        
00039     AV_SAMPLE_FMT_DBLP,        
00040 
00041     AV_SAMPLE_FMT_NB           
00042 };
00043 
00048 const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt);
00049 
00054 enum AVSampleFormat av_get_sample_fmt(const char *name);
00055 
00068 char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt);
00069 
00070 #if FF_API_GET_BITS_PER_SAMPLE_FMT
00071 
00074 attribute_deprecated
00075 int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt);
00076 #endif
00077 
00085 int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt);
00086 
00093 int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt);
00094 
00105 int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
00106                                enum AVSampleFormat sample_fmt, int align);
00107 
00129 int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, uint8_t *buf,
00130                            int nb_channels, int nb_samples,
00131                            enum AVSampleFormat sample_fmt, int align);
00132 
00146 int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels,
00147                      int nb_samples, enum AVSampleFormat sample_fmt, int align);
00148 
00149 #endif /* AVUTIL_SAMPLEFMT_H */