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#include <algorithm>
#include <string>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#define BKNI_TRACK_MALLOCS 1
#include "nexus_platform.h"
#include "nexus_platform_features.h"
#include "bstd.h"
#include "bkni.h"
#include "bkni_multi.h"
#include "nexus_audio_playback.h"
#include "nexus_audio_output.h"
#include "nexus_audio_input.h"
#include "nexus_audio_decoder.h"
#include "nexus_audio_mixer.h"
#include "nexus_stc_channel.h"
#include "nexus_pid_channel.h"
#include "nexus_parser_band.h"
#include "device_nexus.h"
#include "debug.h"
namespace audiere {
NexusAudioDevice*
NexusAudioDevice::create(const ParameterList& parameters) {
bool initPlatform = parameters.getBoolean("initPlatform", false);
BKNI_EventHandle event;
NEXUS_PlatformConfiguration config;
NEXUS_AudioPlaybackHandle playback;
NEXUS_AudioPlaybackStartSettings playbackSettings;
NexusAudioDevice *device;
if (initPlatform)
NEXUS_Platform_Init(NULL);
NEXUS_Platform_GetConfiguration(&config);
playback = NEXUS_AudioPlayback_Open(0, NULL);
if (!playback)
{
ADR_LOG("Unable to open playback channel\n");
return 0;
}
NEXUS_AudioOutput_AddInput(NEXUS_AudioDac_GetConnector(config.outputs.audioDacs[0]),
NEXUS_AudioPlayback_GetConnector(playback));
NEXUS_AudioPlayback_GetDefaultStartSettings(&playbackSettings);
playbackSettings.sampleRate = 44100;
playbackSettings.bitsPerSample = 16;
playbackSettings.signedData = true;
playbackSettings.stereo = true;
playbackSettings.dataCallback.callback = DataCallback;
playbackSettings.dataCallback.param = 0;
BKNI_CreateEvent(&event);
device = new NexusAudioDevice(playback, event, 44100, 4096);
playbackSettings.dataCallback.context = device;
NEXUS_AudioPlayback_Start(playback, &playbackSettings);
return device;
}
void NexusAudioDevice::DataCallback(void *pParam1, int param2)
{
if (!pParam1)
return;
NexusAudioDevice *device = (NexusAudioDevice*)pParam1;
if (device->m_event)
BKNI_SetEvent(device->m_event);
}
NexusAudioDevice::NexusAudioDevice(NEXUS_AudioPlaybackHandle playback,
BKNI_EventHandle event,
int rate,
int buffer_size)
: MixerDevice(rate), m_event(event), m_playback(playback), m_rate(rate)
{
m_buffer_size = buffer_size;
m_buffer = new char [buffer_size];
}
NexusAudioDevice::~NexusAudioDevice() {
ADR_GUARD("NexusAudioDevice::~NexusAudioDevice");
NEXUS_PlatformConfiguration config;
NEXUS_Platform_GetConfiguration(&config);
NEXUS_AudioPlayback_Stop(m_playback);
NEXUS_AudioOutput_RemoveAllInputs(NEXUS_AudioDac_GetConnector(config.outputs.audioDacs[0]));
NEXUS_AudioPlayback_Close(m_playback);
BKNI_DestroyEvent(m_event);
delete [] m_buffer;
}
void ADR_CALL
NexusAudioDevice::update() {
int sample_len;
size_t sample_left;
char* sample_buf;
sample_buf = m_buffer;
sample_len = m_buffer_size / 4;
sample_left = read(sample_len, sample_buf);
while (sample_left > 0) {
int16_t *buffer;
size_t buffersize;
BERR_Code err;
/* Check available buffer space */
err = NEXUS_AudioPlayback_GetBuffer(m_playback, (void **)&buffer, &buffersize);
if (err)
break;
if (buffersize) {
/* Copy samples into buffer */
buffersize /= 4;
if (buffersize > sample_left)
buffersize = sample_left;
memcpy(buffer, sample_buf, buffersize * 4);
err = NEXUS_AudioPlayback_ReadComplete(m_playback, buffersize * 4);
if (err)
break;
sample_buf += buffersize * 4;
sample_left -= buffersize;
} else {
/* Wait for data callback */
err = BKNI_WaitForEvent(m_event, 1000);
if (err)
break;
}
}
}
const char* ADR_CALL
NexusAudioDevice::getName() {
return "nexus";
}
}
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