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format: Add string to pa_format_info conversion function

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This will help accept string formats from the command like (so we can
set formats using pactl).
This commit is contained in:
Arun Raghavan 2011-08-12 21:55:48 +05:30
parent 348c51bfcd
commit 8bffbcde1b
2 changed files with 65 additions and 10 deletions
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68
src/pulse/format.c
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@ -41,20 +41,30 @@
static int pa_format_info_prop_compatible(const char *one, const char *two);
const char *pa_encoding_to_string(pa_encoding_t e) {
static const char* const table[]= {
[PA_ENCODING_PCM] = "pcm",
[PA_ENCODING_AC3_IEC61937] = "ac3-iec61937",
[PA_ENCODING_EAC3_IEC61937] = "eac3-iec61937",
[PA_ENCODING_MPEG_IEC61937] = "mpeg-iec61937",
[PA_ENCODING_DTS_IEC61937] = "dts-iec61937",
[PA_ENCODING_ANY] = "any",
};
static const char* const _encoding_str_table[]= {
[PA_ENCODING_PCM] = "pcm",
[PA_ENCODING_AC3_IEC61937] = "ac3-iec61937",
[PA_ENCODING_EAC3_IEC61937] = "eac3-iec61937",
[PA_ENCODING_MPEG_IEC61937] = "mpeg-iec61937",
[PA_ENCODING_DTS_IEC61937] = "dts-iec61937",
[PA_ENCODING_ANY] = "any",
};
const char *pa_encoding_to_string(pa_encoding_t e) {
if (e < 0 || e >= PA_ENCODING_MAX)
return NULL;
return table[e];
return _encoding_str_table[e];
}
pa_encoding_t pa_encoding_from_string(const char *encoding) {
pa_encoding_t e;
for (e = PA_ENCODING_ANY; e < PA_ENCODING_MAX; e++)
if (pa_streq(_encoding_str_table[e], encoding))
return e;
return PA_ENCODING_INVALID;
}
pa_format_info* pa_format_info_new(void) {
@ -125,6 +135,44 @@ char *pa_format_info_snprint(char *s, size_t l, const pa_format_info *f) {
return s;
}
pa_format_info* pa_format_info_from_string(const char *str) {
pa_format_info *f = pa_format_info_new();
char *encoding = NULL, *properties = NULL;
size_t pos;
pos = strcspn(str, ",");
encoding = pa_xstrndup(str, pos);
f->encoding = pa_encoding_from_string(pa_strip(encoding));
if (f->encoding == PA_ENCODING_INVALID)
goto error;
if (pos != strlen(str)) {
pa_proplist *plist;
properties = pa_xstrdup(&str[pos+1]);
plist = pa_proplist_from_string(properties);
if (!plist)
goto error;
pa_proplist_free(f->plist);
f->plist = plist;
}
out:
if (encoding)
pa_xfree(encoding);
if (properties)
pa_xfree(properties);
return f;
error:
pa_format_info_free(f);
f = NULL;
goto out;
}
int pa_format_info_is_compatible(pa_format_info *first, pa_format_info *second) {
const char *key;
void *state = NULL;