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80 lines
2.5 KiB
80 lines
2.5 KiB
/* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVUTIL_SAMPLEFMT_H |
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#define AVUTIL_SAMPLEFMT_H |
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#include "avutil.h" |
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/** |
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* all in native-endian format |
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*/ |
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enum AVSampleFormat { |
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AV_SAMPLE_FMT_NONE = -1, |
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AV_SAMPLE_FMT_U8, ///< unsigned 8 bits |
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AV_SAMPLE_FMT_S16, ///< signed 16 bits |
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AV_SAMPLE_FMT_S32, ///< signed 32 bits |
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AV_SAMPLE_FMT_FLT, ///< float |
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AV_SAMPLE_FMT_DBL, ///< double |
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AV_SAMPLE_FMT_NB ///< Number of sample formats. DO NOT USE if linking dynamically |
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}; |
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/** |
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* Return the name of sample_fmt, or NULL if sample_fmt is not |
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* recognized. |
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*/ |
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const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt); |
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/** |
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* Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE |
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* on error. |
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*/ |
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enum AVSampleFormat av_get_sample_fmt(const char *name); |
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/** |
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* Generate a string corresponding to the sample format with |
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* sample_fmt, or a header if sample_fmt is negative. |
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* |
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* @param buf the buffer where to write the string |
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* @param buf_size the size of buf |
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* @param sample_fmt the number of the sample format to print the |
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* corresponding info string, or a negative value to print the |
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* corresponding header. |
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* @return the pointer to the filled buffer or NULL if sample_fmt is |
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* unknown or in case of other errors |
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*/ |
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char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt); |
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#if FF_API_GET_BITS_PER_SAMPLE_FMT |
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/** |
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* @deprecated Use av_get_bytes_per_sample() instead. |
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*/ |
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attribute_deprecated |
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int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt); |
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#endif |
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/** |
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* Return number of bytes per sample. |
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* |
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* @param sample_fmt the sample format |
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* @return number of bytes per sample or zero if unknown for the given |
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* sample format |
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*/ |
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int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt); |
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#endif /* AVUTIL_SAMPLEFMT_H */
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