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core: Add a pa_format_info structure

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This will be used to represent the format of data provided by the client
for both compressed and PCM formats in a new extended API.
This commit is contained in:
Arun Raghavan 2011-02-25 12:35:14 +05:30
parent 802c8b6fcc
commit c3839c7637
8 changed files with 205 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

42
src/pulsecore/tagstruct.c
View file

@ -291,6 +291,17 @@ void pa_tagstruct_put_proplist(pa_tagstruct *t, pa_proplist *p) {
pa_tagstruct_puts(t, NULL);
}
void pa_tagstruct_put_format_info(pa_tagstruct *t, pa_format_info *f) {
pa_assert(t);
pa_assert(f);
extend(t, 1);
t->data[t->length++] = PA_TAG_FORMAT_INFO;
pa_tagstruct_putu8(t, (uint8_t) f->encoding);
pa_tagstruct_put_proplist(t, f->plist);
}
int pa_tagstruct_gets(pa_tagstruct*t, const char **s) {
int error = 0;
size_t n;
@ -631,6 +642,37 @@ fail:
return -1;
}
int pa_tagstruct_get_format_info(pa_tagstruct *t, pa_format_info *f) {
size_t saved_rindex;
uint8_t encoding;
pa_assert(t);
pa_assert(f);
if (t->rindex+1 > t->length)
return -1;
if (t->data[t->rindex] != PA_TAG_FORMAT_INFO)
return -1;
saved_rindex = t->rindex;
t->rindex++;
if (pa_tagstruct_getu8(t, &encoding) < 0)
goto fail;
f->encoding = encoding;
if (pa_tagstruct_get_proplist(t, f->plist) < 0)
goto fail;
return 0;
fail:
t->rindex = saved_rindex;
return -1;
}
void pa_tagstruct_put(pa_tagstruct *t, ...) {
va_list va;
pa_assert(t);

6
src/pulsecore/tagstruct.h
View file

@ -27,6 +27,7 @@
#include <sys/time.h>
#include <pulse/sample.h>
#include <pulse/format.h>
#include <pulse/channelmap.h>
#include <pulse/volume.h>
#include <pulse/proplist.h>
@ -58,7 +59,8 @@ enum {
PA_TAG_CHANNEL_MAP = 'm',
PA_TAG_CVOLUME = 'v',
PA_TAG_PROPLIST = 'P',
PA_TAG_VOLUME = 'V'
PA_TAG_VOLUME = 'V',
PA_TAG_FORMAT_INFO = 'f',
};
pa_tagstruct *pa_tagstruct_new(const uint8_t* data, size_t length);
@ -84,6 +86,7 @@ void pa_tagstruct_put_channel_map(pa_tagstruct *t, const pa_channel_map *map);
void pa_tagstruct_put_cvolume(pa_tagstruct *t, const pa_cvolume *cvolume);
void pa_tagstruct_put_proplist(pa_tagstruct *t, pa_proplist *p);
void pa_tagstruct_put_volume(pa_tagstruct *t, pa_volume_t volume);
void pa_tagstruct_put_format_info(pa_tagstruct *t, pa_format_info *f);
int pa_tagstruct_get(pa_tagstruct *t, ...);
@ -101,5 +104,6 @@ int pa_tagstruct_get_channel_map(pa_tagstruct *t, pa_channel_map *map);
int pa_tagstruct_get_cvolume(pa_tagstruct *t, pa_cvolume *v);
int pa_tagstruct_get_proplist(pa_tagstruct *t, pa_proplist *p);
int pa_tagstruct_get_volume(pa_tagstruct *t, pa_volume_t *v);
int pa_tagstruct_get_format_info(pa_tagstruct *t, pa_format_info *f);
#endif