cinelerra/audiooss.h

   1 #ifndef AUDIOOSS_H
   2 #define AUDIOOSS_H
   3
   4 #include "audiodevice.h"
   5 #include "condition.inc"
   6 #include "playbackconfig.inc"
   7
   8 #ifdef HAVE_OSS
   9 #include <sys/soundcard.h>
  10
  11 class OSSThread : public Thread
  12 {
  13 public:
  14         OSSThread(AudioOSS *device);
  15         ~OSSThread();
  16
  17         void run();
  18         void write_data(int fd, unsigned char *data, int bytes);
  19         void read_data(int fd, unsigned char *data, int bytes);
  20 // Must synchronize reads and writes
  21         void wait_read();
  22         void wait_write();
  23
  24         Condition *input_lock;
  25         Condition *output_lock;
  26         Condition *read_lock;
  27         Condition *write_lock;
  28         int rd, wr, fd;
  29         unsigned char *data;
  30         int bytes;
  31         int done;
  32         AudioOSS *device;
  33 };
  34
  35 class AudioOSS : public AudioLowLevel
  36 {
  37 public:
  38         AudioOSS(AudioDevice *device);
  39         ~AudioOSS();
  40
  41         int open_input();
  42         int open_output();
  43         int open_duplex();
  44         int write_buffer(char *buffer, int bytes);
  45         int read_buffer(char *buffer, int bytes);
  46         int close_all();
  47         int64_t device_position();
  48         int flush_device();
  49         int interrupt_playback();
  50
  51 private:
  52         int get_fmt(int bits);
  53         int sizetofrag(int samples, int channels, int bits);
  54         int set_cloexec_flag(int desc, int value);
  55         int get_output(int number);
  56         int get_input(int number);
  57         int dsp_in[MAXDEVICES], dsp_out[MAXDEVICES], dsp_duplex[MAXDEVICES];
  58         OSSThread *thread[MAXDEVICES];
  59 // Temp for each device
  60         unsigned char *data[MAXDEVICES];
  61 // Bytes allocated
  62         int data_allocated[MAXDEVICES];
  63 };
  64
  65 #endif
  66
  67 #endif