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Improve unsupported FPS options and performance

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This commit is contained in:
Cameron Gutman
2018-09-08 15:09:46 -07:00
parent 64a08f0533
commit c9a7c15f98
7 changed files with 110 additions and 65 deletions
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41
app/streaming/session.cpp
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@@ -417,6 +417,10 @@ bool Session::validateLaunch()
if (m_Preferences.unsupportedFps && m_StreamConfig.fps > 60) {
emitLaunchWarning("Using unsupported FPS options may cause stuttering or lag.");
if (m_Preferences.enableVsync) {
emitLaunchWarning("V-sync will be disabled when streaming at a higher frame rate than the display.");
}
}
if (m_StreamConfig.supportsHevc) {
@@ -1001,18 +1005,31 @@ void Session::exec(int displayOriginX, int displayOriginY)
SDL_FlushEvent(SDL_RENDER_DEVICE_RESET);
SDL_FlushEvent(SDL_RENDER_TARGETS_RESET);
// Choose a new decoder (hopefully the same one, but possibly
// not if a GPU was removed or something).
if (!chooseDecoder(m_Preferences.videoDecoderSelection,
m_Window, m_ActiveVideoFormat, m_ActiveVideoWidth,
m_ActiveVideoHeight, m_ActiveVideoFrameRate,
m_Preferences.enableVsync,
s_ActiveSession->m_VideoDecoder)) {
SDL_AtomicUnlock(&m_DecoderLock);
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Failed to recreate decoder after reset");
emit displayLaunchError("Unable to initialize video decoder. Please check your streaming settings and try again.");
goto DispatchDeferredCleanup;
{
// If the stream exceeds the display refresh rate (plus some slack),
// forcefully disable V-sync to allow the stream to render faster
// than the display.
int displayHz = StreamUtils::getDisplayRefreshRate(m_Window);
bool enableVsync = m_Preferences.enableVsync;
if (displayHz + 5 < m_StreamConfig.fps) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"Disabling V-sync because refresh rate limit exceeded");
enableVsync = false;
}
// Choose a new decoder (hopefully the same one, but possibly
// not if a GPU was removed or something).
if (!chooseDecoder(m_Preferences.videoDecoderSelection,
m_Window, m_ActiveVideoFormat, m_ActiveVideoWidth,
m_ActiveVideoHeight, m_ActiveVideoFrameRate,
enableVsync,
s_ActiveSession->m_VideoDecoder)) {
SDL_AtomicUnlock(&m_DecoderLock);
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Failed to recreate decoder after reset");
emit displayLaunchError("Unable to initialize video decoder. Please check your streaming settings and try again.");
goto DispatchDeferredCleanup;
}
}
// Request an IDR frame to complete the reset