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 <alsa/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         int64_t device_position();
  24         int flush_device();
  25         int interrupt_playback();
  26
  27 private:
  28         void translate_name(char *output, char *input);
  29         snd_pcm_format_t translate_format(int format);
  30         void set_params(snd_pcm_t *dsp,
  31                 int channels,
  32                 int bits,
  33                 int samplerate,
  34                 int samples);
  35         int create_format(snd_pcm_format_t *format, int bits, int channels, int rate);
  36         snd_pcm_t* get_output();
  37         snd_pcm_t* get_input();
  38         snd_pcm_t *dsp_in, *dsp_out, *dsp_duplex;
  39 };
  40
  41 #endif
  42 #endif