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audio_pause/resume implementacio es kozmetikai valtoztatasok 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1047 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
al3x 2001-06-07 13:03:17 +00:00
parent d346c4eff4
commit f5f7b69b3a
1 changed files with 38 additions and 7 deletions
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45
libao2/ao_alsa5.c
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@ -1,5 +1,5 @@
/*
ao_alsa5 - ALSA 5.x output plugin for MPlayer
ao_alsa5 - ALSA-0.5.x output plugin for MPlayer
(C) Alex Beregszaszi <alex@naxine.org>
@ -237,8 +237,23 @@ static int init(int rate_hz, int channels, int format, int flags)
/* close audio device */
static void uninit()
{
reset();
snd_pcm_close(alsa_handler);
if ((err = snd_pcm_playback_drain(alsa_handler)) < 0)
{
printf("alsa-uninit: playback drain error: %s\n", snd_strerror(err));
return;
}
if ((err = snd_pcm_channel_flush(alsa_handler, SND_PCM_CHANNEL_PLAYBACK)) < 0)
{
printf("alsa-uninit: playback flush error: %s\n", snd_strerror(err));
return;
}
if ((err = snd_pcm_close(alsa_handler)) < 0)
{
printf("alsa-uninit: pcm close error: %s\n", snd_strerror(err));
return;
}
}
/* stop playing and empty buffers (for seeking/pause) */
@ -268,13 +283,29 @@ static void reset()
/* stop playing, keep buffers (for pause) */
static void audio_pause()
{
/* for now, just call reset(); */
reset();
int err;
if ((err = snd_pcm_playback_drain(alsa_handler)) < 0)
{
printf("alsa-pause: playback drain error: %s\n", snd_strerror(err));
return;
}
if ((err = snd_pcm_channel_flush(alsa_handler, SND_PCM_CHANNEL_PLAYBACK)) < 0)
{
printf("alsa-pause: playback flush error: %s\n", snd_strerror(err));
return;
}
}
/* resume playing, after audio_pause() */
static void audio_resume()
{
if ((err = snd_pcm_channel_prepare(alsa_handler, SND_PCM_CHANNEL_PLAYBACK)) < 0)
{
printf("alsa-resume: channel prepare error: %s\n", snd_strerror(err));
return;
}
}
/*
@ -314,7 +345,7 @@ static int get_space()
ch_stat.channel = SND_PCM_CHANNEL_PLAYBACK;
if (snd_pcm_channel_status(alsa_handler, &ch_stat) < 0)
return(0);
return(0); /* error occured */
else
return(ch_stat.free);
}
@ -327,7 +358,7 @@ static int get_delay()
ch_stat.channel = SND_PCM_CHANNEL_PLAYBACK;
if (snd_pcm_channel_status(alsa_handler, &ch_stat) < 0)
return(0);
return(ao_buffersize); /* error occured */
else
return(ch_stat.count);
}