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pulse-server: align format to pulseaudio json message format

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PulseAudio uses json now as the message format. Reformat our output
and parse our input accordingly.
This commit is contained in:
Wim Taymans 2021-07-29 20:54:32 +02:00
parent 1216371f8c
commit 393f3e6d05
1 changed files with 25 additions and 24 deletions
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49
src/modules/module-protocol-pulse/message-handler.c
View file

@ -8,6 +8,7 @@
#include <spa/pod/builder.h>
#include <spa/pod/pod.h>
#include <spa/utils/defs.h>
#include <spa/utils/json.h>
#include <spa/utils/string.h>
#include <pipewire/pipewire.h>
@ -29,9 +30,8 @@ static int bluez_card_object_message_handler(struct pw_manager *m, struct pw_man
return -EINVAL;
if (spa_streq(message, "switch-codec")) {
regex_t re;
regmatch_t matches[2];
char *codec;
char codec[256];
struct spa_json it;
char buf[1024];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buf, sizeof(buf));
struct spa_pod_frame f[1];
@ -41,19 +41,12 @@ static int bluez_card_object_message_handler(struct pw_manager *m, struct pw_man
/* Parse args */
if (params == NULL)
return -EINVAL;
if (regcomp(&re, "[:space:]*{\\([0-9]*\\)}[:space:]*", 0) != 0)
return -EIO;
if (regexec(&re, params, SPA_N_ELEMENTS(matches), matches, 0) != 0) {
regfree(&re);
return -EINVAL;
}
regfree(&re);
codec = strndup(params + matches[1].rm_so, matches[1].rm_eo - matches[1].rm_so);
if (codec) {
codec_id = atoi(codec);
free(codec);
}
spa_json_init(&it, params, strlen(params));
if (spa_json_get_string(&it, codec, sizeof(codec)-1) <= 0)
return -EINVAL;
codec_id = atoi(codec);
/* Switch codec */
spa_pod_builder_push_object(&b, &f[0],
@ -69,24 +62,27 @@ static int bluez_card_object_message_handler(struct pw_manager *m, struct pw_man
uint32_t i;
FILE *r;
size_t size;
bool first = true;
r = open_memstream(response, &size);
if (r == NULL)
return -ENOMEM;
fputc('{', r);
fputc('[', r);
for (i = 0; i < n_codecs; ++i) {
const char *desc = codecs[i].description;
fprintf(r, "{{%d}{%s}}", (int)codecs[i].id, desc ? desc : "Unknown");
fprintf(r, "%s{\"name\":\"%d\",\"description\":\"%s\"}",
first ? "" : ",",
(int)codecs[i].id, desc ? desc : "Unknown");
}
fputc('}', r);
fputc(']', r);
return fclose(r) ? -errno : 0;
} else if (spa_streq(message, "get-codec")) {
if (active == SPA_ID_INVALID)
*response = strdup("{none}");
*response = strdup("null");
else
*response = spa_aprintf("{%d}", (int)codecs[active].id);
*response = spa_aprintf("\"%d\"", (int)codecs[active].id);
return *response ? 0 : -ENOMEM;
}
@ -100,17 +96,22 @@ static int core_object_message_handler(struct pw_manager *m, struct pw_manager_o
if (spa_streq(message, "list-handlers")) {
FILE *r;
size_t size;
bool first = true;
r = open_memstream(response, &size);
if (r == NULL)
return -ENOMEM;
fputc('{', r);
fputc('[', r);
spa_list_for_each(o, &m->object_list, link) {
if (o->message_object_path)
fprintf(r, "{{%s}{%s}}", o->message_object_path, o->type);
if (o->message_object_path) {
fprintf(r, "%s{\"name\":\"%s\",\"description\":\"%s\"}",
first ? "" : ",",
o->message_object_path, o->type);
first = false;
}
}
fputc('}', r);
fputc(']', r);
return fclose(r) ? -errno : 0;
}