134 |
// obtain information from given sound card |
// obtain information from given sound card |
135 |
String pcm_name = "hw:" + Parameters["CARD"]; |
String pcm_name = "hw:" + Parameters["CARD"]; |
136 |
snd_pcm_t* pcm_handle = NULL; |
snd_pcm_t* pcm_handle = NULL; |
137 |
if (snd_pcm_open(&pcm_handle, pcm_name.c_str(), SND_PCM_STREAM_PLAYBACK, 0) < 0) return optional<int>::nothing; |
if (snd_pcm_open(&pcm_handle, pcm_name.c_str(), SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK) < 0) return optional<int>::nothing; |
138 |
snd_pcm_hw_params_t* hwparams; |
snd_pcm_hw_params_t* hwparams; |
139 |
snd_pcm_hw_params_alloca(&hwparams); |
snd_pcm_hw_params_alloca(&hwparams); |
140 |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
157 |
// obtain information from given sound card |
// obtain information from given sound card |
158 |
String pcm_name = "hw:" + Parameters["CARD"]; |
String pcm_name = "hw:" + Parameters["CARD"]; |
159 |
snd_pcm_t* pcm_handle = NULL; |
snd_pcm_t* pcm_handle = NULL; |
160 |
if (snd_pcm_open(&pcm_handle, pcm_name.c_str(), SND_PCM_STREAM_PLAYBACK, 0) < 0) return optional<int>::nothing; |
if (snd_pcm_open(&pcm_handle, pcm_name.c_str(), SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK) < 0) return optional<int>::nothing; |
161 |
snd_pcm_hw_params_t* hwparams; |
snd_pcm_hw_params_t* hwparams; |
162 |
snd_pcm_hw_params_alloca(&hwparams); |
snd_pcm_hw_params_alloca(&hwparams); |
163 |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
227 |
// obtain information from given sound card |
// obtain information from given sound card |
228 |
String pcm_name = "hw:" + Parameters["CARD"]; |
String pcm_name = "hw:" + Parameters["CARD"]; |
229 |
snd_pcm_t* pcm_handle = NULL; |
snd_pcm_t* pcm_handle = NULL; |
230 |
if (snd_pcm_open(&pcm_handle, pcm_name.c_str(), SND_PCM_STREAM_PLAYBACK, 0) < 0) return optional<int>::nothing; |
if (snd_pcm_open(&pcm_handle, pcm_name.c_str(), SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK) < 0) return optional<int>::nothing; |
231 |
snd_pcm_hw_params_t* hwparams; |
snd_pcm_hw_params_t* hwparams; |
232 |
snd_pcm_hw_params_alloca(&hwparams); |
snd_pcm_hw_params_alloca(&hwparams); |
233 |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
250 |
// obtain information from given sound card |
// obtain information from given sound card |
251 |
String pcm_name = "hw:" + Parameters["CARD"]; |
String pcm_name = "hw:" + Parameters["CARD"]; |
252 |
snd_pcm_t* pcm_handle = NULL; |
snd_pcm_t* pcm_handle = NULL; |
253 |
if (snd_pcm_open(&pcm_handle, pcm_name.c_str(), SND_PCM_STREAM_PLAYBACK, 0) < 0) return optional<int>::nothing; |
if (snd_pcm_open(&pcm_handle, pcm_name.c_str(), SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK) < 0) return optional<int>::nothing; |
254 |
snd_pcm_hw_params_t* hwparams; |
snd_pcm_hw_params_t* hwparams; |
255 |
snd_pcm_hw_params_alloca(&hwparams); |
snd_pcm_hw_params_alloca(&hwparams); |
256 |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
430 |
* Checks if sound card supports the chosen parameters. |
* Checks if sound card supports the chosen parameters. |
431 |
* |
* |
432 |
* @returns true if hardware supports it |
* @returns true if hardware supports it |
433 |
|
* @throws AudioOutputException - if device cannot be accessed |
434 |
*/ |
*/ |
435 |
bool AudioOutputDeviceAlsa::HardwareParametersSupported(String card, uint channels, int samplerate, uint numfragments, uint fragmentsize) { |
bool AudioOutputDeviceAlsa::HardwareParametersSupported(String card, uint channels, int samplerate, uint numfragments, uint fragmentsize) throw (AudioOutputException) { |
436 |
pcm_name = "hw:" + card; |
pcm_name = "hw:" + card; |
437 |
if (snd_pcm_open(&pcm_handle, pcm_name.c_str(), stream, 0) < 0) return false; |
int err; |
438 |
|
if ((err = snd_pcm_open(&pcm_handle, pcm_name.c_str(), stream, 0)) < 0) { |
439 |
|
throw AudioOutputException(String("Error opening PCM device ") + pcm_name + ": " + snd_strerror(err)); |
440 |
|
} |
441 |
snd_pcm_hw_params_alloca(&hwparams); |
snd_pcm_hw_params_alloca(&hwparams); |
442 |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) { |
443 |
snd_pcm_close(pcm_handle); |
snd_pcm_close(pcm_handle); |
516 |
} |
} |
517 |
|
|
518 |
String AudioOutputDeviceAlsa::Version() { |
String AudioOutputDeviceAlsa::Version() { |
519 |
String s = "$Revision: 1.17 $"; |
String s = "$Revision: 1.18 $"; |
520 |
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
521 |
} |
} |
522 |
|
|