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rhubarb-lip-sync
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Speedup through better multithreading 

* Fixed excessive locking
* Using more threads for voice recognition
This commit is contained in:
Daniel Wolf 2016-08-03 21:39:15 +02:00
parent 1cb41b8309
commit 6888dadd04
1 changed files with 9 additions and 7 deletions
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16
src/phoneExtraction.cpp
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@ -361,13 +361,15 @@ BoundedTimeline<Phone> detectPhones(
std::stack<lambda_unique_ptr<ps_decoder_t>> decoderPool;
std::mutex decoderPoolMutex;
auto getDecoder = [&] {
std::lock_guard<std::mutex> lock(decoderPoolMutex);
if (decoderPool.empty()) {
decoderPool.push(createDecoder(dialog));
{
std::lock_guard<std::mutex> lock(decoderPoolMutex);
if (!decoderPool.empty()) {
auto decoder = std::move(decoderPool.top());
decoderPool.pop();
return std::move(decoder);
}
}
auto decoder = std::move(decoderPool.top());
decoderPool.pop();
return std::move(decoder);
return createDecoder(dialog);
};
auto returnDecoder = [&](lambda_unique_ptr<ps_decoder_t> decoder) {
std::lock_guard<std::mutex> lock(decoderPoolMutex);
@ -408,7 +410,7 @@ BoundedTimeline<Phone> detectPhones(
// Don't use more threads than there are utterances to be processed
static_cast<int>(utterances.size()),
// Don't waste time creating additional threads (and decoders!) if the recording is short
static_cast<int>(duration_cast<std::chrono::seconds>(audioClip->getTruncatedRange().getLength()).count() / 10)
static_cast<int>(duration_cast<std::chrono::seconds>(audioClip->getTruncatedRange().getLength()).count() / 5)
});
logging::debug("Speech recognition -- start");
runParallel(processUtterance, utterances, threadCount, dialogProgressSink, getUtteranceProgressWeight);