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 <stdint.h> 23 #include "libavutil/log.h" 24 #include "libavcodec/codec_id.h" 25 #include "libavformat/avformat.h" 26 27 #define OSS_AUDIO_BLOCK_SIZE 4096 28 29 typedef struct OSSAudioData { 30 AVClass *class; 31 int fd; 32 int sample_rate; 33 int sample_size; /* in bytes ! */ 34 int channels; 35 int frame_size; /* in bytes ! */ 36 enum AVCodecID codec_id; 37 unsigned int flip_left : 1; 38 uint8_t buffer[OSS_AUDIO_BLOCK_SIZE]; 39 int buffer_ptr; 40 } OSSAudioData; 41 42 int ff_oss_audio_open(AVFormatContext *s1, int is_output, 43 const char *audio_device); 44 45 int ff_oss_audio_close(OSSAudioData *s); 46 47 #endif /* AVDEVICE_OSS_H */ 48