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SoundPlayer: Reduce sample buffer size and add a sample load event

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This commit is contained in:
Cesar Torres 2021-03-21 13:43:27 +01:00 • committed by Andreas Kling
parent 7aa5297835
commit f9e4bff487
3 changed files with 10 additions and 3 deletions
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4
Userland/Applications/SoundPlayer/CMakeLists.txt
View file

@ -3,6 +3,10 @@ set(SOURCES
PlaybackManager.cpp
SampleWidget.cpp
SoundPlayerWidget.cpp
SoundPlayerWidgetAdvancedView.cpp
BarsVisualizationWidget.cpp
AudioAlgorithms.cpp
NoVisualizationWidget.cpp
)
serenity_app(SoundPlayer ICON app-sound-player)

6
Userland/Applications/SoundPlayer/PlaybackManager.cpp
View file

@ -128,13 +128,16 @@ void PlaybackManager::load_next_buffer()
if (m_buffers.size() < 10) {
for (int i = 0; i < 20 && m_loader->loaded_samples() < m_loader->total_samples(); i++) {
auto buffer = m_loader->get_more_samples(PLAYBACK_MANAGER_BUFFER_SIZE);
if (buffer)
if (buffer) {
m_buffers.append(buffer);
}
}
}
if (m_next_ptr < m_buffers.size()) {
m_next_buffer = m_buffers.at(m_next_ptr++);
if (on_load_sample_buffer)
on_load_sample_buffer(*m_next_buffer);
} else {
m_next_buffer = nullptr;
}
@ -163,7 +166,6 @@ void PlaybackManager::next_buffer()
{
if (on_update)
on_update();
if (m_paused)
return;

3
Userland/Applications/SoundPlayer/PlaybackManager.h
View file

@ -32,7 +32,7 @@
#include <LibAudio/Loader.h>
#include <LibCore/Timer.h>
#define PLAYBACK_MANAGER_BUFFER_SIZE 64 * KiB
#define PLAYBACK_MANAGER_BUFFER_SIZE 48 * KiB
#define PLAYBACK_MANAGER_RATE 44100
class PlaybackManager final {
@ -56,6 +56,7 @@ public:
NonnullRefPtr<Audio::ClientConnection> connection() const { return m_connection; }
Function<void()> on_update;
Function<void(Audio::Buffer&)> on_load_sample_buffer;
private:
void next_buffer();