hvirtual/cinelerra/audioalsa.h

   1 #ifndef AUDIOALSA_H
   2 #define AUDIOALSA_H
   3
   4 #include "arraylist.h"
   5 #include "audiodevice.h"
   6
   7 #ifdef HAVE_ALSA
   8 #include "asoundlib.h"
   9
  10 class AudioALSA : public AudioLowLevel
  11 {
  12 public:
  13         AudioALSA(AudioDevice *device);
  14         ~AudioALSA();
  15
  16         static void list_devices(ArrayList<char*> *devices, int pcm_title = 0);
  17         int open_input();
  18         int open_output();
  19         int open_duplex();
  20         int write_buffer(char *buffer, int size);
  21         int read_buffer(char *buffer, int size);
  22         int close_all();
  23         int close_input();
  24         int64_t device_position();
  25         int flush_device();
  26         int interrupt_playback();
  27
  28 private:
  29         int close_output();
  30         void translate_name(char *output, char *input);
  31         snd_pcm_format_t translate_format(int format);
  32         void set_params(snd_pcm_t *dsp,
  33                 int channels,
  34                 int bits,
  35                 int samplerate,
  36                 int samples);
  37         int create_format(snd_pcm_format_t *format, int bits, int channels, int rate);
  38         snd_pcm_t* get_output();
  39         snd_pcm_t* get_input();
  40         snd_pcm_t *dsp_in, *dsp_out, *dsp_duplex;
  41         int64_t samples_written;
  42         Timer *timer;
  43         int delay;
  44         Mutex *timer_lock;
  45         int interrupted;
  46 };
  47
  48 #endif
  49 #endif