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add new introspection data field for sinks/sources: a flags field which specifies whether the sink/source supports hw volume control and latency querying

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@661 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-04-07 23:02:48 +00:00
parent 272ab200c2
commit f6d95b7291
4 changed files with 26 additions and 2 deletions
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12
src/polyp/def.h
View file

@ -273,6 +273,18 @@ typedef enum pa_seek_mode {
PA_SEEK_RELATIVE_END = 3, /**< Seek relatively to the current end of the buffer queue. */
} pa_seek_mode_t;
/** Special sink flags. \since 0.8 */
typedef enum pa_sink_flags {
PA_SINK_HW_VOLUME_CTRL = 1, /**< Supports hardware volume control */
PA_SINK_LATENCY = 2 /**< Supports latency querying */
} pa_sink_flags_t;
/** Special source flags. \since 0.8 */
typedef enum pa_source_flags {
PA_SOURCE_HW_VOLUME_CTRL = 1, /**< Supports hardware volume control */
PA_SOURCE_LATENCY = 2 /**< Supports latency querying */
} pa_source_flags_t;
PA_C_DECL_END
#endif

12
src/polyp/introspect.c
View file

@ -135,6 +135,7 @@ static void context_get_sink_info_callback(pa_pdispatch *pd, uint32_t command, P
eol = -1;
} else {
uint32_t flags;
while (!pa_tagstruct_eof(t)) {
pa_sink_info i;
@ -150,12 +151,15 @@ static void context_get_sink_info_callback(pa_pdispatch *pd, uint32_t command, P
pa_tagstruct_getu32(t, &i.monitor_source) < 0 ||
pa_tagstruct_gets(t, &i.monitor_source_name) < 0 ||
pa_tagstruct_get_usec(t, &i.latency) < 0 ||
pa_tagstruct_gets(t, &i.driver) < 0) {
pa_tagstruct_gets(t, &i.driver) < 0 ||
pa_tagstruct_getu32(t, &flags) < 0) {
pa_context_fail(o->context, PA_ERR_PROTOCOL);
goto finish;
}
i.flags = (pa_sink_flags_t) flags;
if (o->callback) {
pa_sink_info_cb_t cb = (pa_sink_info_cb_t) o->callback;
cb(o->context, &i, 0, o->userdata);
@ -242,6 +246,7 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
while (!pa_tagstruct_eof(t)) {
pa_source_info i;
uint32_t flags;
if (pa_tagstruct_getu32(t, &i.index) < 0 ||
pa_tagstruct_gets(t, &i.name) < 0 ||
@ -254,12 +259,15 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
pa_tagstruct_getu32(t, &i.monitor_of_sink) < 0 ||
pa_tagstruct_gets(t, &i.monitor_of_sink_name) < 0 ||
pa_tagstruct_get_usec(t, &i.latency) < 0 ||
pa_tagstruct_gets(t, &i.driver) < 0) {
pa_tagstruct_gets(t, &i.driver) < 0 ||
pa_tagstruct_getu32(t, &flags) < 0) {
pa_context_fail(o->context, PA_ERR_PROTOCOL);
goto finish;
}
i.flags = (pa_source_flags_t) flags;
if (o->callback) {
pa_source_info_cb_t cb = (pa_source_info_cb_t) o->callback;
cb(o->context, &i, 0, o->userdata);

2
src/polyp/introspect.h
View file

@ -63,6 +63,7 @@ typedef struct pa_sink_info {
const char *monitor_source_name; /**< The name of the monitor source */
pa_usec_t latency; /**< Length of filled playback buffer of this sink */
const char *driver; /**< Driver name. \since 0.8 */
pa_sink_flags_t flags; /**< Flags \since 0.8 */
} pa_sink_info;
/** Callback prototype for pa_context_get_sink_info_by_name() and friends */
@ -91,6 +92,7 @@ typedef struct pa_source_info {
const char *monitor_of_sink_name; /**< Name of the owning sink, or PA_INVALID_INDEX */
pa_usec_t latency; /**< Length of filled record buffer of this source. \since 0.5 */
const char *driver; /**< Driver name \since 0.8 */
pa_source_flags_t flags; /**< Flags \since 0.8 */
} pa_source_info;
/** Callback prototype for pa_context_get_source_info_by_name() and friends */

2
src/polypcore/protocol-native.c
View file

@ -1232,6 +1232,7 @@ static void sink_fill_tagstruct(pa_tagstruct *t, pa_sink *sink) {
PA_TAG_STRING, sink->monitor_source->name,
PA_TAG_USEC, pa_sink_get_latency(sink),
PA_TAG_STRING, sink->driver,
PA_TAG_U32, (sink->get_hw_volume ? PA_SINK_HW_VOLUME_CTRL : 0) | (sink->get_latency ? PA_SINK_LATENCY : 0),
PA_TAG_INVALID);
}
@ -1251,6 +1252,7 @@ static void source_fill_tagstruct(pa_tagstruct *t, pa_source *source) {
PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL,
PA_TAG_USEC, pa_source_get_latency(source),
PA_TAG_STRING, source->driver,
PA_TAG_U32, (source->get_hw_volume ? PA_SOURCE_HW_VOLUME_CTRL : 0) | (source->get_latency ? PA_SOURCE_LATENCY : 0),
PA_TAG_INVALID);
}