81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
--- qsstv/sound/soundalsa.cpp.orig 2016-04-08 23:08:29 UTC
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+++ qsstv/sound/soundalsa.cpp
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@@ -64,6 +64,8 @@ void soundAlsa::prepareCapture()
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{
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int err;
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+ snd_pcm_drop(captureHandle);
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+ snd_pcm_reset(captureHandle);
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if((err=snd_pcm_prepare (captureHandle)) < 0)
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{
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alsaErrorHandler(err,"Unable to prepare "+inputAudioDevice);
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@@ -76,6 +78,8 @@ void soundAlsa::prepareCapture()
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void soundAlsa::preparePlayback()
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{
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+ snd_pcm_drop(playbackHandle);
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+ snd_pcm_reset(playbackHandle);
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snd_pcm_prepare (playbackHandle);
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}
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@@ -97,6 +101,8 @@ int soundAlsa::read(int &countAvailable)
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if ( count == -EPIPE )
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{
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// Overrun
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+ snd_pcm_drop(captureHandle);
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+ snd_pcm_reset(captureHandle);
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snd_pcm_prepare (captureHandle );
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snd_pcm_start (captureHandle);
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errorOut() << "Overrun";
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@@ -140,6 +146,8 @@ int soundAlsa::write(uint numFrames)
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else if ( framesWritten == -EPIPE )
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{
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/* underrun */
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+ snd_pcm_drop(playbackHandle);
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+ snd_pcm_reset(playbackHandle);
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error = snd_pcm_prepare (playbackHandle);
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if ( error < 0 )
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{
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@@ -337,5 +345,42 @@ void getCardList(QStringList &alsaInputL
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n++;
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}
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snd_device_name_free_hint(hints);
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+
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+ snd_config_t *pcmc;
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+ snd_pcm_t *pcm;
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+ if (!snd_config)
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+ snd_config_update();
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+ if(snd_config_search(snd_config, "pcm", &pcmc)==0) {
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+ snd_config_iterator_t i, next;
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+ snd_config_for_each(i, next, pcmc) {
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+ snd_config_t *n = snd_config_iterator_entry(i);
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+ if (snd_config_get_type(n) != SND_CONFIG_TYPE_COMPOUND)
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+ continue;
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+ const char *id;
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+ if(snd_config_get_id(n, &id)==0) {
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+ deviceName = QString(id);
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+ if (deviceName == "hw" ||
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+ deviceName == "plughw" ||
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+ deviceName == "plug" ||
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+ deviceName == "dsnoop" ||
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+ deviceName == "tee" ||
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+ deviceName == "file" ||
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+ deviceName == "null" ||
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+ deviceName == "shm" ||
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+ deviceName == "cards" ||
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+ deviceName == "rate_convert")
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+ continue;
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+ if (snd_pcm_open(&pcm, id, SND_PCM_STREAM_PLAYBACK, 0) == 0) {
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+ alsaOutputList.append(deviceName + " ");
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+ snd_pcm_close(pcm);
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+ }
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+ if (snd_pcm_open(&pcm, id, SND_PCM_STREAM_CAPTURE, 0) == 0) {
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+ alsaInputList.append(deviceName + " ");
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+ snd_pcm_close(pcm);
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+ }
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+ }
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+ }
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+ }
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+
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}
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