cinelerra/audioalsa.h

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