mirror of https://git.ffmpeg.org/ffmpeg.git
71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVUTIL_SAMPLEFMT_H
|
|
#define AVUTIL_SAMPLEFMT_H
|
|
|
|
/**
|
|
* all in native-endian format
|
|
*/
|
|
enum AVSampleFormat {
|
|
AV_SAMPLE_FMT_NONE = -1,
|
|
AV_SAMPLE_FMT_U8, ///< unsigned 8 bits
|
|
AV_SAMPLE_FMT_S16, ///< signed 16 bits
|
|
AV_SAMPLE_FMT_S32, ///< signed 32 bits
|
|
AV_SAMPLE_FMT_FLT, ///< float
|
|
AV_SAMPLE_FMT_DBL, ///< double
|
|
AV_SAMPLE_FMT_NB ///< Number of sample formats. DO NOT USE if linking dynamically
|
|
};
|
|
|
|
/**
|
|
* Return the name of sample_fmt, or NULL if sample_fmt is not
|
|
* recognized.
|
|
*/
|
|
const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt);
|
|
|
|
/**
|
|
* Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE
|
|
* on error.
|
|
*/
|
|
enum AVSampleFormat av_get_sample_fmt(const char *name);
|
|
|
|
/**
|
|
* Generate a string corresponding to the sample format with
|
|
* sample_fmt, or a header if sample_fmt is negative.
|
|
*
|
|
* @param buf the buffer where to write the string
|
|
* @param buf_size the size of buf
|
|
* @param sample_fmt the number of the sample format to print the
|
|
* corresponding info string, or a negative value to print the
|
|
* corresponding header.
|
|
* @return the pointer to the filled buffer or NULL if sample_fmt is
|
|
* unknown or in case of other errors
|
|
*/
|
|
char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt);
|
|
|
|
/**
|
|
* Return sample format bits per sample.
|
|
*
|
|
* @param sample_fmt the sample format
|
|
* @return number of bits per sample or zero if unknown for the given
|
|
* sample format
|
|
*/
|
|
int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt);
|
|
|
|
#endif /* AVUTIL_SAMPLEFMT_H */
|