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https://gitee.com/openharmony/third_party_ffmpeg
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40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 AVCODEC_DVAUDIO_H
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#define AVCODEC_DVAUDIO_H
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#include <stdint.h>
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static inline int dv_get_audio_sample_count(const uint8_t *buffer, int dsf)
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{
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int samples = buffer[0] & 0x3f; /* samples in this frame - min samples */
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switch ((buffer[3] >> 3) & 0x07) {
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case 0:
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return samples + (dsf ? 1896 : 1580);
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case 1:
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return samples + (dsf ? 1742 : 1452);
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case 2:
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default:
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return samples + (dsf ? 1264 : 1053);
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}
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}
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#endif /* AVCODEC_DVAUDIO_H */
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