diff options
| -rw-r--r-- | src/audioOutputs/audioOutput_alsa.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/audioOutputs/audioOutput_alsa.c b/src/audioOutputs/audioOutput_alsa.c index b7b0a1151..06dbeb956 100644 --- a/src/audioOutputs/audioOutput_alsa.c +++ b/src/audioOutputs/audioOutput_alsa.c @@ -38,9 +38,6 @@ static const char default_device[] = "default"; #include <alsa/asoundlib.h> -/* #define MPD_SND_PCM_NONBLOCK SND_PCM_NONBLOCK */ -#define MPD_SND_PCM_NONBLOCK 0 - /* * This macro will evaluate both statements, but only returns the result * of the second statement to the reader. Thus it'll stringify the @@ -65,6 +62,7 @@ typedef struct _AlsaData { alsa_writei_t *writei; unsigned int buffer_time; unsigned int period_time; + unsigned int period_sleep; int sampleSize; int useMmap; } AlsaData; @@ -175,16 +173,14 @@ static int alsa_openDevice(AudioOutput * audioOutput) ad->device, audioFormat->bits); err = E(snd_pcm_open, &ad->pcmHandle, ad->device, - SND_PCM_STREAM_PLAYBACK, MPD_SND_PCM_NONBLOCK); + SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK); if (err < 0) { ad->pcmHandle = NULL; goto error; } -#if MPD_SND_PCM_NONBLOCK == SND_PCM_NONBLOCK if ((err = E(snd_pcm_nonblock, ad->pcmHandle, 0)) < 0) goto error; -#endif /* MPD_SND_PCM_NONBLOCK == SND_PCM_NONBLOCK */ period_time_ro = period_time = ad->period_time; configure_hw: @@ -250,6 +246,7 @@ configure_hw: } else if (err < 0) goto error; + ad->period_sleep = period_time >> 1; DEBUG("ALSA(%s) period_time: %u, buffer_time: %u\n", ad->device, period_time, buffer_time); if ((err = E(snd_pcm_hw_params_get_buffer_size, hwparams, @@ -376,7 +373,12 @@ static int alsa_playAudio(AudioOutput * audioOutput, while (size > 0) { ret = ad->writei(ad->pcmHandle, playChunk, size); - if (ret == -EAGAIN || ret == -EINTR) + if (ret == -EAGAIN) { + DEBUG("ALSA busy, sleeping %d\n", ad->period_sleep); + my_usleep(ad->period_sleep); + continue; + } + if (ret == -EINTR) continue; if (ret < 0) { |