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null-sink: add an option that allows rewinds to be disabled

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Wellington Wallace 2019-05-04 13:21:21 -03:00 • committed by Wellington Wallace Miguel Melo
parent b89d33bb18
commit 16a7f1e02c
1 changed files with 12 additions and 1 deletions
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13
src/modules/module-null-sink.c
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@ -53,7 +53,8 @@ PA_MODULE_USAGE(
"rate=<sample rate> " "rate=<sample rate> "
"channels=<number of channels> " "channels=<number of channels> "
"channel_map=<channel map>" "channel_map=<channel map>"
"formats=<semi-colon separated sink formats>"); "formats=<semi-colon separated sink formats>"
"norewinds=<disable rewinds>");
#define DEFAULT_SINK_NAME "null" #define DEFAULT_SINK_NAME "null"
#define BLOCK_USEC (PA_USEC_PER_SEC * 2) #define BLOCK_USEC (PA_USEC_PER_SEC * 2)
@ -71,6 +72,8 @@ struct userdata {
pa_usec_t timestamp; pa_usec_t timestamp;
pa_idxset *formats; pa_idxset *formats;
bool norewinds;
}; };
static const char* const valid_modargs[] = { static const char* const valid_modargs[] = {
@ -81,6 +84,7 @@ static const char* const valid_modargs[] = {
"channels", "channels",
"channel_map", "channel_map",
"formats", "formats",
"norewinds",
NULL NULL
}; };
@ -169,6 +173,9 @@ static void process_rewind(struct userdata *u, pa_usec_t now) {
pa_assert(u); pa_assert(u);
if (u->norewinds)
goto do_nothing;
rewind_nbytes = u->sink->thread_info.rewind_nbytes; rewind_nbytes = u->sink->thread_info.rewind_nbytes;
if (!PA_SINK_IS_OPENED(u->sink->thread_info.state) || rewind_nbytes <= 0) if (!PA_SINK_IS_OPENED(u->sink->thread_info.state) || rewind_nbytes <= 0)
@ -349,6 +356,10 @@ int pa__init(pa_module*m) {
goto fail; goto fail;
} }
if(pa_modargs_get_value_boolean(ma, "norewinds", &u->norewinds) < 0){
pa_log("Failed to disable rewinds.");
}
u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY); u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY);
pa_sink_new_data_done(&data); pa_sink_new_data_done(&data);