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  1. /*
  2.  * This file is part of FFmpeg.
  3.  *
  4.  * FFmpeg is free software; you can redistribute it and/or
  5.  * modify it under the terms of the GNU Lesser General Public
  6.  * License as published by the Free Software Foundation; either
  7.  * version 2.1 of the License, or (at your option) any later version.
  8.  *
  9.  * FFmpeg is distributed in the hope that it will be useful,
  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12.  * Lesser General Public License for more details.
  13.  *
  14.  * You should have received a copy of the GNU Lesser General Public
  15.  * License along with FFmpeg; if not, write to the Free Software
  16.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17.  */
  18.  
  19. #ifndef AVDEVICE_OSS_H
  20. #define AVDEVICE_OSS_H
  21.  
  22. #include "libavcodec/avcodec.h"
  23.  
  24. #include "libavformat/avformat.h"
  25.  
  26. #define OSS_AUDIO_BLOCK_SIZE 4096
  27.  
  28. typedef struct OSSAudioData {
  29.     AVClass *class;
  30.     int fd;
  31.     int sample_rate;
  32.     int channels;
  33.     int frame_size; /* in bytes ! */
  34.     enum AVCodecID codec_id;
  35.     unsigned int flip_left : 1;
  36.     uint8_t buffer[OSS_AUDIO_BLOCK_SIZE];
  37.     int buffer_ptr;
  38. } OSSAudioData;
  39.  
  40. int ff_oss_audio_open(AVFormatContext *s1, int is_output,
  41.                       const char *audio_device);
  42.  
  43. int ff_oss_audio_close(OSSAudioData *s);
  44.  
  45. #endif /* AVDEVICE_OSS_H */
  46.