text: /*
   * This file is part of FFmpeg.
   *
   * FFmpeg 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.
   *
   * FFmpeg 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 FFmpeg; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  #ifndef AVDEVICE_OSS_H
  #define AVDEVICE_OSS_H
  
  #include <stdint.h>
  #include "libavutil/log.h"
  #include "libavcodec/codec_id.h"
  #include "libavformat/avformat.h"
  
  #define OSS_AUDIO_BLOCK_SIZE 4096
  
  typedef struct OSSAudioData {
      AVClass *class;
      int fd;
      int sample_rate;
      int channels;
      int frame_size; /* in bytes ! */
      enum AVCodecID codec_id;
      unsigned int flip_left : 1;
      uint8_t buffer[OSS_AUDIO_BLOCK_SIZE];
      int buffer_ptr;
  } OSSAudioData;
  
  int ff_oss_audio_open(AVFormatContext *s1, int is_output,
                        const char *audio_device);
  
  int ff_oss_audio_close(OSSAudioData *s);
  
  #endif /* AVDEVICE_OSS_H */
  