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#include <alsa/asoundlib.h>
#include <pthread.h>
#include "pa_util.h"
#include "pa_process.h"
#include "pa_cpuload.h"
#include "pa_stream.h"
typedef struct PaAlsaStream
{
PaUtilStreamRepresentation streamRepresentation;
PaUtilCpuLoadMeasurer cpuLoadMeasurer;
PaUtilBufferProcessor bufferProcessor;
snd_pcm_t *pcm_capture;
snd_pcm_t *pcm_playback;
int callback_finished; /* bool: are we in the "callback finished" state? */
int frames_per_period;
int playback_hostsampleformat;
int capture_channels;
int playback_channels;
int capture_interleaved; /* bool: is capture interleaved? */
int playback_interleaved; /* bool: is playback interleaved? */
int callback_mode; /* bool: are we running in callback mode? */
pthread_t callback_thread;
/* the callback thread uses these to poll the sound device, waiting
* for data to be ready/available */
unsigned int capture_nfds;
unsigned int playback_nfds;
struct pollfd *pfds;
/* these aren't really stream state, the callback uses them */
snd_pcm_uframes_t capture_offset;
snd_pcm_uframes_t playback_offset;
}
PaAlsaStream;
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