PulseAudio: Remove get_latency() caching
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3 changed files with 14 additions and 17 deletions
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@ -132,7 +132,7 @@
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<method name="get_output_latency" qualifiers="const">
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<return type="float" />
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<description>
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Returns the audio driver's output latency.
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Returns the audio driver's output latency. This can be expensive, it is not recommended to call this every frame.
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</description>
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</method>
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<method name="get_speaker_mode" qualifiers="const">
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@ -114,7 +114,7 @@
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Number of islands in the 3D physics engine.
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</constant>
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<constant name="AUDIO_OUTPUT_LATENCY" value="30" enum="Monitor">
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Output latency of the [AudioServer].
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Output latency of the [AudioServer]. Equivalent to calling [method AudioServer.get_output_latency], it is not recommended to call this every frame.
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</constant>
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<constant name="MONITOR_MAX" value="31" enum="Monitor">
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Represents the size of the [enum Monitor] enum.
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@ -353,27 +353,24 @@ Error AudioDriverPulseAudio::init() {
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}
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float AudioDriverPulseAudio::get_latency() {
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if (latency == 0) { //only do this once since it's approximate anyway
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lock();
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lock();
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pa_usec_t palat = 0;
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if (pa_stream_get_state(pa_str) == PA_STREAM_READY) {
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int negative = 0;
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pa_usec_t pa_lat = 0;
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if (pa_stream_get_state(pa_str) == PA_STREAM_READY) {
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int negative = 0;
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if (pa_stream_get_latency(pa_str, &palat, &negative) >= 0) {
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if (negative) {
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palat = 0;
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}
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if (pa_stream_get_latency(pa_str, &pa_lat, &negative) >= 0) {
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if (negative) {
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pa_lat = 0;
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}
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}
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if (palat > 0) {
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latency = double(palat) / 1000000.0;
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}
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unlock();
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}
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if (pa_lat > 0) {
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latency = double(pa_lat) / 1000000.0;
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}
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unlock();
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return latency;
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}
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