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Completed parametric configuration and begun to use it

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This commit is contained in:
Abramo Bagnara 2001-05-22 09:19:43 +00:00
parent ecfec483a8
commit f5534c46ed
12 changed files with 617 additions and 256 deletions
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116
src/pcm/pcm.c
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@ -995,92 +995,31 @@ static int snd_pcm_open_noupdate(snd_pcm_t **pcmp, const char *name,
{
int err;
snd_config_t *pcm_conf;
const char *name1;
err = snd_config_search_alias(snd_config, "pcm", name, &pcm_conf);
name1 = name;
if (err < 0 || snd_config_get_string(pcm_conf, &name1) >= 0) {
int card, dev, subdev;
char socket[256], sname[256];
char format[16], file[256];
err = sscanf(name1, "hw:%d,%d,%d", &card, &dev, &subdev);
if (err == 3)
return snd_pcm_hw_open(pcmp, name, card, dev, subdev, stream, mode);
err = sscanf(name1, "hw:%d,%d", &card, &dev);
if (err == 2)
return snd_pcm_hw_open(pcmp, name, card, dev, -1, stream, mode);
err = sscanf(name1, "plug:%d,%d,%d", &card, &dev, &subdev);
if (err == 3)
return snd_pcm_plug_open_hw(pcmp, name, card, dev, subdev, stream, mode);
err = sscanf(name1, "plug:%d,%d", &card, &dev);
if (err == 2)
return snd_pcm_plug_open_hw(pcmp, name, card, dev, -1, stream, mode);
err = sscanf(name1, "plug:%256[^,]", sname);
if (err == 1) {
snd_pcm_t *slave;
err = snd_pcm_open(&slave, sname, stream, mode);
if (err < 0)
return err;
return snd_pcm_plug_open(pcmp, name, NULL, 0, 0, 0, slave, 1);
}
err = sscanf(name1, "shm:%256[^,],%256[^,]", socket, sname);
if (err == 2)
return snd_pcm_shm_open(pcmp, name, socket, sname, stream, mode);
err = sscanf(name1, "file:%256[^,],%16[^,],%256[^,]", file, format, sname);
if (err == 3) {
snd_pcm_t *slave;
err = snd_pcm_open(&slave, sname, stream, mode);
if (err < 0)
return err;
return snd_pcm_file_open(pcmp, name1, file, -1, format, slave, 1);
}
err = sscanf(name1, "file:%256[^,],%16[^,]", file, format);
if (err == 2) {
snd_pcm_t *slave;
err = snd_pcm_null_open(&slave, name, stream, mode);
if (err < 0)
return err;
return snd_pcm_file_open(pcmp, name, file, -1, format, slave, 1);
}
err = sscanf(name1, "file:%256[^,]", file);
if (err == 1) {
snd_pcm_t *slave;
err = snd_pcm_null_open(&slave, name, stream, mode);
if (err < 0)
return err;
return snd_pcm_file_open(pcmp, name, file, -1, "raw", slave, 1);
}
if (strcmp(name1, "null") == 0)
return snd_pcm_null_open(pcmp, name, stream, mode);
err = sscanf(name1, "surround40:%d,%d", &card, &dev);
if (err == 2)
return snd_pcm_surround_open(pcmp, name, card, dev, SND_PCM_SURROUND_40, stream, mode);
err = sscanf(name1, "surround40:%d", &card);
if (err == 1)
return snd_pcm_surround_open(pcmp, name, card, 0, SND_PCM_SURROUND_40, stream, mode);
err = sscanf(name1, "surround51:%d,%d", &card, &dev);
if (err == 2)
return snd_pcm_surround_open(pcmp, name, card, dev, SND_PCM_SURROUND_51, stream, mode);
err = sscanf(name1, "surround51:%d", &card);
if (err == 1)
return snd_pcm_surround_open(pcmp, name, card, 0, SND_PCM_SURROUND_51, stream, mode);
SNDERR("Unknown PCM %s", name1);
return -ENOENT;
const char *args = strchr(name, ':');
char *base;
if (args) {
args++;
base = alloca(args - name);
memcpy(base, name, args - name - 1);
base[args - name - 1] = 0;
} else
base = (char *) name;
err = snd_config_search_alias(snd_config, "pcm", base, &pcm_conf);
if (err < 0) {
SNDERR("Unknown PCM %s", name);
return err;
}
return snd_pcm_open_conf(pcmp, name, pcm_conf, stream, mode);
if (args) {
err = snd_config_expand(pcm_conf, args, &pcm_conf);
if (err < 0)
return err;
}
err = snd_pcm_open_conf(pcmp, name, pcm_conf, stream, mode);
if (args)
snd_config_delete(pcm_conf);
return err;
}
#ifndef DOC_HIDDEN
int snd_pcm_open_slave(snd_pcm_t **pcmp, snd_config_t *conf,
snd_pcm_stream_t stream, int mode)
{
const char *str;
if (snd_config_get_string(conf, &str) >= 0)
return snd_pcm_open_noupdate(pcmp, str, stream, mode);
return snd_pcm_open_conf(pcmp, NULL, conf, stream, mode);
}
#endif
/**
* \brief Opens a PCM
* \param pcmp Returned PCM handle
@ -1100,6 +1039,17 @@ int snd_pcm_open(snd_pcm_t **pcmp, const char *name,
return snd_pcm_open_noupdate(pcmp, name, stream, mode);
}
#ifndef DOC_HIDDEN
int snd_pcm_open_slave(snd_pcm_t **pcmp, snd_config_t *conf,
snd_pcm_stream_t stream, int mode)
{
const char *str;
if (snd_config_get_string(conf, &str) >= 0)
return snd_pcm_open_noupdate(pcmp, str, stream, mode);
return snd_pcm_open_conf(pcmp, NULL, conf, stream, mode);
}
#endif
/**
* \brief Wait for a PCM to become ready
* \param pcm PCM handle