static int voice_test()
{
int rtn = 0;
char* name;
fd_set rfds, wfds;
Audio_t hPcm_Mic;
Audio_t hPcm_Spk;
snd_pcm_channel_params_t params;
bool bQuit = false;
/************************ CAPTURE **************************/
// configuring capture (mic)
name = "voice";
// get audioman handle
rtn = audio_manager_get_handle(AUDIO_TYPE_VIDEO_CHAT, getpid(), (bool)false, &hPcm_Mic.hAudioman);
if(rtn < 0) {
cli_print("audio_manager_get_handle (mic) failed %s", strerror(-rtn));
return -1;
}
cli_print("Opening %s - for capture", name);
rtn = snd_pcm_open_name(&hPcm_Mic.pDs, name, SND_PCM_OPEN_CAPTURE);
if (rtn < 0) {
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
cli_print("snd_pcm_open_name (mic) failed %s", snd_strerror(rtn));
return -1; // snd_pcm calls return negative values; make positive
}
rtn = snd_pcm_set_audioman_handle(hPcm_Mic.pDs, hPcm_Mic.hAudioman);
if (rtn < 0) {
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
cli_print("snd_pcm_set_audioman_handle (mic) failed %s", snd_strerror(rtn));
(void)snd_pcm_close(hPcm_Mic.pDs);
return -1;
}
// disable mmap
(void)snd_pcm_plugin_set_disable(hPcm_Mic.pDs, (unsigned int)PLUGIN_DISABLE_MMAP);
// set parameters
memset(¶ms, 0, sizeof(params));
params.mode = SND_PCM_MODE_BLOCK;
params.channel = SND_PCM_CHANNEL_CAPTURE;
params.start_mode = SND_PCM_START_GO;
params.stop_mode = SND_PCM_STOP_ROLLOVER;
params.buf.block.frag_size = fragsize;
params.buf.block.frags_max = 1;
params.buf.block.frags_min = 1;
params.format.rate = 8000; //samplerate;
params.format.interleave = 1;
params.format.voices = channels;
params.format.format = SND_PCM_SFMT_S16_LE;
rtn = snd_pcm_plugin_params(hPcm_Mic.pDs, ¶ms);
if (rtn < 0) {
cli_print("snd_pcm_plugin_params (mic) failed %s", snd_strerror(rtn));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
return -1;
}
// get file descriptor for use with the select() call
hPcm_Mic.hFD = snd_pcm_file_descriptor(hPcm_Mic.pDs, SND_PCM_CHANNEL_CAPTURE);
if (hPcm_Mic.hFD < 0) {
cli_print("snd_pcm_file_descriptor (mic) failed %s", snd_strerror(hPcm_Mic.hFD));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
return -1;
}
// Signal the driver to ready the capture channel
rtn = snd_pcm_plugin_prepare(hPcm_Mic.pDs, SND_PCM_CHANNEL_CAPTURE);
if (rtn < 0) {
cli_print("snd_pcm_plugin_prepare (mic) failed %s", snd_strerror(errno));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
return -1;
}
fragsize = params.buf.block.frag_size;
/************************ PLAYBACK **************************/
name = "voice";
// get and set audioman handle
rtn = audio_manager_get_handle(AUDIO_TYPE_VIDEO_CHAT, getpid(), (bool)false, &hPcm_Spk.hAudioman);
if (rtn < 0) {
cli_print("audioman audio_manager_get_handle (spk) failed %s", strerror(-rtn) );
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
return -1;
}
#ifdef HANDSET
// set audio manager handle type
rtn = audio_manager_set_handle_type(hPcm_Spk.hAudioman, AUDIO_TYPE_VIDEO_CHAT, device_type, device_type);
if (rtn < 0) {
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
(void)audio_manager_free_handle(hPcm_Spk.hAudioman);
cli_print("audio_manager_set_handle_type (spk) failed %s", strerror(-rtn));
return -1;
}
#endif
// Create a handle and open a connection to an audio interface specified by name
cli_print("Opening %s - for playback", name);
rtn = snd_pcm_open_name(&hPcm_Spk.pDs, name, SND_PCM_OPEN_PLAYBACK);
if (rtn < 0) {
cli_print("snd_pcm_open_name (spk) failed %s", snd_strerror(rtn));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
(void)audio_manager_free_handle(hPcm_Spk.hAudioman);
return -1;
}
rtn = snd_pcm_set_audioman_handle(hPcm_Spk.pDs, hPcm_Spk.hAudioman);
if (rtn < 0) {
cli_print("snd_pcm_set_audioman_handle (spk) failed %s", snd_strerror(rtn));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)snd_pcm_close(hPcm_Spk.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
(void)audio_manager_free_handle(hPcm_Spk.hAudioman);
return -1;
}
// disable mmap
(void)snd_pcm_plugin_set_disable(hPcm_Spk.pDs, (unsigned int)PLUGIN_DISABLE_MMAP);
// set parameters
memset(¶ms, 0, sizeof(params));
params.mode = SND_PCM_MODE_BLOCK;
params.channel = SND_PCM_CHANNEL_PLAYBACK;
params.start_mode = SND_PCM_START_GO;
params.stop_mode = SND_PCM_STOP_ROLLOVER;
params.buf.block.frag_size = fragsize;
params.buf.block.frags_max = 1;
params.buf.block.frags_min = 1;
params.format.rate = samplerate;
params.format.interleave = 1;
params.format.voices = channels;
params.format.format = SND_PCM_SFMT_S16_LE;
// Set the configurable parameters for a PCM channel
rtn = snd_pcm_plugin_params(hPcm_Spk.pDs, ¶ms);
if (rtn < 0) {
cli_print("snd_pcm_plugin_params (spk) failed %s", snd_strerror(rtn));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)snd_pcm_close(hPcm_Spk.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
(void)audio_manager_free_handle(hPcm_Spk.hAudioman);
return -1;
}
// get file descriptor for use with the select() call
hPcm_Spk.hFD = snd_pcm_file_descriptor(hPcm_Spk.pDs, SND_PCM_CHANNEL_PLAYBACK);
if (hPcm_Spk.hFD < 0) {
cli_print("snd_pcm_file_descriptor (spk) failed %s", snd_strerror(hPcm_Spk.hFD));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)snd_pcm_close(hPcm_Spk.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
(void)audio_manager_free_handle(hPcm_Spk.hAudioman);
return -1;
}
// Signal the driver to ready the playback channel
rtn = snd_pcm_plugin_prepare(hPcm_Spk.pDs, SND_PCM_CHANNEL_PLAYBACK);
if (rtn < 0) {
cli_print("snd_pcm_plugin_prepare (spk) failed %s", snd_strerror(rtn));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)snd_pcm_close(hPcm_Spk.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
(void)audio_manager_free_handle(hPcm_Spk.hAudioman);
return -1;
}
fragsize = params.buf.block.frag_size;
rtn = snd_pcm_capture_go(hPcm_Mic.pDs);
if( rtn < 0) {
cli_print("snd_pcm_capture_go (mic) failed %s", snd_strerror(rtn));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)snd_pcm_close(hPcm_Spk.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
(void)audio_manager_free_handle(hPcm_Spk.hAudioman);
return -1;
}
rtn = snd_pcm_playback_go(hPcm_Spk.pDs);
if (rtn < 0) {
cli_print("snd_pcm_playback_go (spk) failed %s", snd_strerror(rtn));
(void)snd_pcm_close(hPcm_Mic.pDs);
(void)snd_pcm_close(hPcm_Spk.pDs);
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
(void)audio_manager_free_handle(hPcm_Spk.hAudioman);
return -1;
}
/******************* PLAYBACK/RECORD LOOP **************************/
while(!bQuit)
{
int width;
struct timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = 350000; // 350 ms
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_SET(hPcm_Mic.hFD, &rfds);
FD_SET(hPcm_Spk.hFD, &wfds);
width = ((hPcm_Spk.hFD > hPcm_Mic.hFD) ? hPcm_Spk.hFD : hPcm_Mic.hFD) + 1;
rtn = select(width, &rfds, &wfds, NULL, &timeout);
if (rtn > 0) {
if (FD_ISSET(hPcm_Spk.hFD, &wfds)) {
bQuit = process_write(hPcm_Spk.pDs);
}
if (FD_ISSET(hPcm_Mic.hFD, &rfds)) {
bQuit = process_read(hPcm_Mic.pDs);
}
}
else if (rtn == 0){
cli_print("select: timed out");
bQuit = true;
}
else { // (rtn < 0)
cli_print("select: %s", strerror(errno));
bQuit = true;
}
}
// Ensure audio processing is stopped
if ((rtn = snd_pcm_plugin_playback_drain(hPcm_Spk.pDs)) < 0) {
cli_print("snd_pcm_plugin_playback_drain (spk) failed %s", snd_strerror(rtn));
}
if ((rtn = snd_pcm_plugin_flush(hPcm_Mic.pDs, SND_PCM_CHANNEL_CAPTURE)) < 0) {
cli_print("snd_pcm_plugin_flush (mic) failed %s", snd_strerror(rtn));
}
if ((rtn = snd_pcm_close(hPcm_Spk.pDs)) < 0) {
cli_print("snd_pcm_close (spk) failed %s", snd_strerror(rtn));
}
if ((rtn = snd_pcm_close(hPcm_Mic.pDs)) < 0) {
cli_print("snd_pcm_close (mic) failed %s", snd_strerror(rtn));
}
if (hPcm_Spk.hAudioman) {
(void)audio_manager_free_handle(hPcm_Spk.hAudioman);
}
if (hPcm_Mic.hAudioman) {
(void)audio_manager_free_handle(hPcm_Mic.hAudioman);
}
return 0;
}
// Initialize audio and report back a few parameters of the channel
int setupAudio( )
{
int error;
snd_pcm_channel_info_t pi;
snd_pcm_channel_params_t pp;
snd_pcm_channel_setup_t ps;
//if ((error = snd_pcm_open_name (&playback_handle, "pcmPreferred", SND_PCM_OPEN_PLAYBACK)) < 0) {
if ((error = snd_pcm_open_name (&playback_handle, "tones", SND_PCM_OPEN_PLAYBACK)) < 0) {
slogf( _SLOG_SETCODE(_SLOGC_AUDIO, 0), _SLOG_CRITICAL, "Unable to open preferred audio driver\n");
return -error;
}
sample_handle = snd_pcm_file_descriptor( playback_handle, SND_PCM_CHANNEL_PLAYBACK );
if ((error = snd_pcm_plugin_set_disable (playback_handle, PLUGIN_DISABLE_MMAP)) < 0) {
slogf( _SLOG_SETCODE(_SLOGC_AUDIO, 0), _SLOG_CRITICAL, "Unable to disable mmap\n");
snd_pcm_close(playback_handle);
return -error;
}
if ((error = snd_pcm_plugin_set_enable (playback_handle, PLUGIN_ROUTING)) < 0)
{
slogf ( _SLOG_SETCODE(_SLOGC_AUDIO, 0), _SLOG_CRITICAL, "snd_pcm_plugin_set_enable failed: %s\n", snd_strerror (error));
snd_pcm_close(playback_handle);
return -error;
}
// Find what sample rate and format to use
memset( &pi, 0, sizeof(pi) );
pi.channel = SND_PCM_CHANNEL_PLAYBACK;
if ((error = snd_pcm_channel_info (playback_handle, &pi)) < 0) {
slogf( _SLOG_SETCODE(_SLOGC_AUDIO, 0), _SLOG_CRITICAL, "Unable to get plugin info\n");
snd_pcm_close(playback_handle);
return -error;
}
// Initialize the playback channel
memset(&pp, 0, sizeof(pp) );
pp.mode = SND_PCM_MODE_BLOCK;
pp.channel = SND_PCM_CHANNEL_PLAYBACK;
pp.start_mode = SND_PCM_START_FULL;
pp.stop_mode = SND_PCM_STOP_STOP;
pp.buf.block.frag_size = pi.max_fragment_size;
pp.buf.block.frags_max = 3;
pp.buf.block.frags_min = 1;
pp.format.interleave = 1;
pp.format.format = SND_PCM_SFMT_S16_LE;
pp.format.rate = 48000;
pp.format.voices = 2;
memset( &ps, 0, sizeof( ps ) );
memset( &group, 0, sizeof( group ) );
ps.channel = SND_PCM_CHANNEL_PLAYBACK;
ps.mixer_gid = &group.gid;
//strcpy(pp.sw_mixer_subchn_name, "Wave playback channel");
strcpy(pp.sw_mixer_subchn_name, "voice_ringtone");
if ((error = snd_pcm_plugin_params( playback_handle, &pp)) < 0)
{
slogf( _SLOG_SETCODE(_SLOGC_AUDIO, 0), _SLOG_CRITICAL, "Unable to set plugin params\n");
snd_pcm_close(playback_handle);
return -error;
}
if ((error = snd_pcm_plugin_prepare (playback_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0) {
slogf( _SLOG_SETCODE(_SLOGC_AUDIO, 0), _SLOG_CRITICAL, "Unable to set prepare plugin\n");
snd_pcm_close(playback_handle);
return -error;
}
if ((error = snd_pcm_plugin_setup (playback_handle, &ps)) < 0) {
slogf( _SLOG_SETCODE(_SLOGC_AUDIO, 0), _SLOG_CRITICAL, "Unable to setup plugin\n");
snd_pcm_close(playback_handle);
return -error;
}
card = ps.mixer_card;
device = ps.mixer_device;
if( audioman_handle ) {
if ((error = snd_pcm_set_audioman_handle (playback_handle, audioman_handle)) < 0) {
slogf( _SLOG_SETCODE(_SLOGC_AUDIO, 0), _SLOG_CRITICAL, "Unable to set audioman handle \n");
snd_pcm_close(playback_handle);
return -error;
}
}
sample_frequency = ps.format.rate;
frag_samples = ps.buf.block.frag_size / 4;
frame_size = ps.buf.block.frag_size;
format = pp.format.format;
/*
// Only support 16-bit samples for now
frag_buffer = malloc( ps.buf.block.frag_size * 2 );
if( frag_buffer == NULL ) {
slogf( _SLOG_SETCODE(_SLOGC_AUDIO, 0), _SLOG_CRITICAL, "Unable to alloc frag buffer\n");
snd_pcm_close(playback_handle);
return ENOMEM;
}
*/
fprintf (stderr,"Playback Format %s card = %d\n", snd_pcm_get_format_name (ps.format.format),card);
fprintf (stderr,"Playback preferred frame_size %d \n", pi.max_fragment_size);
fprintf (stderr,"Playback frame_size %d \n", ps.buf.block.frag_size);
fprintf (stderr,"Playback frame_samples %d \n", frag_samples);
fprintf (stderr,"Playback Rate %d \n", ps.format.rate);
if (group.gid.name[0] == 0)
{
fprintf (stderr,"Playback Mixer Pcm Group [%s] Not Set \n", group.gid.name);
return -1;
}
fprintf (stderr, "Playback Mixer Pcm Group [%s]\n", group.gid.name);
return EOK;
}