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introspect: Get formats for sources

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This gets the list of supported formats for a source in
pa_context_get_source_info*(). Also prints these in 'pactl list'.
This commit is contained in:
Colin Guthrie 2011-05-16 22:15:57 +01:00
parent 5d35375aa7
commit fdf3a08814
5 changed files with 82 additions and 18 deletions
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66
src/pulse/introspect.c
View file

@ -405,11 +405,16 @@ pa_operation* pa_context_set_sink_port_by_name(pa_context *c, const char *name,
static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
pa_operation *o = userdata;
int eol = 1;
pa_source_info i;
uint32_t j;
pa_assert(pd);
pa_assert(o);
pa_assert(PA_REFCNT_VALUE(o) >= 1);
/* For safety incase someone use fail: outside the while loop below */
pa_zero(i);
if (!o->context)
goto finish;
@ -421,11 +426,9 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
} else {
while (!pa_tagstruct_eof(t)) {
pa_source_info i;
pa_bool_t mute;
uint32_t flags;
uint32_t state;
unsigned j;
const char *ap;
pa_zero(i);
@ -460,9 +463,7 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
(o->context->version >= 16 &&
(pa_tagstruct_getu32(t, &i.n_ports)))) {
pa_context_fail(o->context, PA_ERR_PROTOCOL);
pa_proplist_free(i.proplist);
goto finish;
goto fail;
}
if (o->context->version >= 16) {
@ -475,11 +476,7 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
pa_tagstruct_gets(t, &i.ports[0][j].description) < 0 ||
pa_tagstruct_getu32(t, &i.ports[0][j].priority) < 0) {
pa_context_fail(o->context, PA_ERR_PROTOCOL);
pa_xfree(i.ports[0]);
pa_xfree(i.ports);
pa_proplist_free(i.proplist);
goto finish;
goto fail;
}
i.ports[j] = &i.ports[0][j];
@ -488,13 +485,8 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
i.ports[j] = NULL;
}
if (pa_tagstruct_gets(t, &ap) < 0) {
pa_context_fail(o->context, PA_ERR_PROTOCOL);
pa_xfree(i.ports[0]);
pa_xfree(i.ports);
pa_proplist_free(i.proplist);
goto finish;
}
if (pa_tagstruct_gets(t, &ap) < 0)
goto fail;
if (ap) {
for (j = 0; j < i.n_ports; j++)
@ -505,6 +497,22 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
}
}
if (o->context->version >= 22) {
uint8_t n_formats;
if (pa_tagstruct_getu8(t, &n_formats) < 0 || n_formats < 1)
goto fail;
i.formats = pa_xnew0(pa_format_info*, n_formats);
for (j = 0; j < n_formats; j++) {
i.n_formats++;
i.formats[j] = pa_format_info_new();
if (pa_tagstruct_get_format_info(t, i.formats[j]) < 0)
goto fail;
}
}
i.mute = (int) mute;
i.flags = (pa_source_flags_t) flags;
i.state = (pa_source_state_t) state;
@ -514,6 +522,11 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
cb(o->context, &i, 0, o->userdata);
}
if (i.formats) {
for (j = 0; j < i.n_formats; j++)
pa_format_info_free(i.formats[j]);
pa_xfree(i.formats);
}
if (i.ports) {
pa_xfree(i.ports[0]);
pa_xfree(i.ports);
@ -530,6 +543,25 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
finish:
pa_operation_done(o);
pa_operation_unref(o);
return;
fail:
pa_assert(i.proplist);
pa_context_fail(o->context, PA_ERR_PROTOCOL);
if (i.formats) {
for (j = 0; j < i.n_formats; j++)
pa_format_info_free(i.formats[j]);
pa_xfree(i.formats);
}
if (i.ports) {
pa_xfree(i.ports[0]);
pa_xfree(i.ports);
}
pa_proplist_free(i.proplist);
goto finish;
}
pa_operation* pa_context_get_source_info_list(pa_context *c, pa_source_info_cb_t cb, void *userdata) {

2
src/pulse/introspect.h
View file

@ -310,6 +310,8 @@ typedef struct pa_source_info {
uint32_t n_ports; /**< Number of entries in port array \since 0.9.16 */
pa_source_port_info** ports; /**< Array of available ports, or NULL. Array is terminated by an entry set to NULL. The number of entries is stored in n_ports \since 0.9.16 */
pa_source_port_info* active_port; /**< Pointer to active port in the array, or NULL \since 0.9.16 */
uint8_t n_formats; /**< Number of formats supported by the source. \since 1.0 */
pa_format_info **formats; /**< Array of formats supported by the source. \since 1.0 */
} pa_source_info;
/** Callback prototype for pa_context_get_source_info_by_name() and friends */