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https://github.com/mpv-player/mpv
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patch from Pierre Lombard <p_l@gmx.fr>
If the sound channel is already busy the async open fails and returns -EBUSY. There's no need to try to open it synchronously as it will block mplayer till the sound channel is released. (Granted there's a very slight chance your sound device happen to be freed between those two calls but it's not the common case). The behavior is changed by this oneliner to match the ao_oss behavior (disable sound if the sound device is busy). git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10899 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -503,7 +503,7 @@ static int init(int rate_hz, int channels, int format, int flags)
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//modes = 0, SND_PCM_NONBLOCK, SND_PCM_ASYNC
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if ((err = snd_pcm_open(&alsa_handler, alsa_device, SND_PCM_STREAM_PLAYBACK, open_mode)) < 0)
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{
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if (ao_noblock) {
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if (err != -EBUSY && ao_noblock) {
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printf("alsa-init: open in nonblock-mode failed, trying to open in block-mode\n");
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if ((err = snd_pcm_open(&alsa_handler, alsa_device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
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printf("alsa-init: playback open error: %s\n", snd_strerror(err));
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@ -503,7 +503,7 @@ static int init(int rate_hz, int channels, int format, int flags)
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//modes = 0, SND_PCM_NONBLOCK, SND_PCM_ASYNC
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if ((err = snd_pcm_open(&alsa_handler, alsa_device, SND_PCM_STREAM_PLAYBACK, open_mode)) < 0)
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{
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if (ao_noblock) {
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if (err != -EBUSY && ao_noblock) {
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printf("alsa-init: open in nonblock-mode failed, trying to open in block-mode\n");
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if ((err = snd_pcm_open(&alsa_handler, alsa_device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
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printf("alsa-init: playback open error: %s\n", snd_strerror(err));
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