mirrors/alsa-lib
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-lib.git synced 2025-11-04 13:30:08 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

String array for default rate plugin list

Browse source 
Change the rate converter type to allow string arrays in addition to
a string.  When a string array is given, the rate plugin probes each
string and try to load the converter plugin in the order of the list.

For example, you can set
	defaults.pcm.rate_converter	[ "samplerate" "linear" ]
so that samplerate plugin is preferred to linear plugin if it's
installed.
This commit is contained in:
Takashi Iwai 2007-03-22 00:58:42 +01:00
parent 70e4ec9d08
commit 36987b02c0
4 changed files with 88 additions and 64 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/pcm/pcm_plug.c
View file

@ -50,7 +50,7 @@ typedef struct {
snd_pcm_format_t sformat;
int schannels;
int srate;
const char *rate_converter;
const snd_config_t *rate_converter;
enum snd_pcm_plug_route_policy route_policy;
snd_pcm_route_ttable_entry_t *ttable;
int ttable_ok, ttable_last;
@ -1015,7 +1015,7 @@ static snd_pcm_ops_t snd_pcm_plug_ops = {
int snd_pcm_plug_open(snd_pcm_t **pcmp,
const char *name,
snd_pcm_format_t sformat, int schannels, int srate,
const char *rate_converter,
const snd_config_t *rate_converter,
enum snd_pcm_plug_route_policy route_policy,
snd_pcm_route_ttable_entry_t *ttable,
unsigned int tt_ssize,
@ -1092,6 +1092,9 @@ pcm.name {
}
}
rate_converter STR # type of rate converter
# or
rate_converter [ STR1 STR2 ... ]
# type of rate converter
# default value is taken from defaults.pcm.rate_converter
}
\endcode
@ -1133,7 +1136,7 @@ int _snd_pcm_plug_open(snd_pcm_t **pcmp, const char *name,
unsigned int cused, sused;
snd_pcm_format_t sformat = SND_PCM_FORMAT_UNKNOWN;
int schannels = -1, srate = -1;
const char *rate_converter = NULL;
const snd_config_t *rate_converter = NULL;
snd_config_for_each(i, next, conf) {
snd_config_t *n = snd_config_iterator_entry(i);
@ -1177,12 +1180,7 @@ int _snd_pcm_plug_open(snd_pcm_t **pcmp, const char *name,
#endif
#ifdef BUILD_PCM_PLUGIN_RATE
if (strcmp(id, "rate_converter") == 0) {
const char *str;
if ((err = snd_config_get_string(n, &str)) < 0) {
SNDERR("Invalid type for %s", id);
return -EINVAL;
}
rate_converter = str;
rate_converter = n;
continue;
}
#endif