hvirtual/cinelerra/audiooss.h

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