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implement a ringbuffer in the audioworklet to optimize runtimes

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Jakob Ketterl
2019-10-19 18:09:50 +02:00
parent cc32e28b36
commit 00c5467a89
2 changed files with 33 additions and 45 deletions
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21
htdocs/openwebrx.js
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@ -1586,8 +1586,6 @@ function audio_onprocess(e) {
}
}
var audio_buffer_progressbar_update_disabled = false;
var audio_buffer_total_average_level = 0;
var audio_buffer_total_average_level_length = 0;
@ -1596,8 +1594,11 @@ function audio_buffers_total_length() {
}
function audio_buffer_progressbar_update(reportedValue) {
if (audio_buffer_progressbar_update_disabled) return;
var audio_buffer_value = (reportedValue || audio_buffers_total_length()) / audio_context.sampleRate;
var audio_buffer_value = reportedValue;
if (typeof(audio_buffer_value) === 'undefined') {
audio_buffer_value = audio_buffers_total_length();
}
audio_buffer_value /= audio_context.sampleRate;
audio_buffer_total_average_level_length++;
audio_buffer_total_average_level = (audio_buffer_total_average_level * ((audio_buffer_total_average_level_length - 1) / audio_buffer_total_average_level_length)) + (audio_buffer_value / audio_buffer_total_average_level_length);
var overrun = audio_buffer_value > audio_buffer_maximal_length_sec;
@ -1609,14 +1610,7 @@ function audio_buffer_progressbar_update(reportedValue) {
if (underrun) {
text = "underrun";
}
if (overrun || underrun) {
audio_buffer_progressbar_update_disabled = true;
window.setTimeout(function () {
audio_buffer_progressbar_update_disabled = false;
audio_buffer_progressbar_update();
}, 1000);
}
progressbar_set(e("openwebrx-bar-audio-buffer"), (underrun) ? 1 : audio_buffer_value, "Audio " + text + " [" + (audio_buffer_value).toFixed(1) + " s]", overrun || underrun);
progressbar_set(e("openwebrx-bar-audio-buffer"), audio_buffer_value, "Audio " + text + " [" + (audio_buffer_value).toFixed(1) + " s]", overrun || underrun);
}
@ -1748,8 +1742,7 @@ function audio_init() {
}, audio_flush_interval_ms);
audio_node.port.addEventListener('message', function(m){
var json = JSON.parse(m.data);
if (json.buffersize) {
audio_buffer_progressbar_update_disabled = false;
if (typeof(json.buffersize) !== 'undefined') {
audio_buffer_progressbar_update(json.buffersize);
}
});