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Use Pacer to drive all rendering

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This commit is contained in:
Cameron Gutman
2018-08-15 23:57:03 -07:00
parent f6a451d6e7
commit 7d61acb2a8
13 changed files with 65 additions and 75 deletions
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28
app/streaming/video/ffmpeg.cpp
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@@ -53,7 +53,8 @@ FFmpegVideoDecoder::FFmpegVideoDecoder()
m_DecodeBuffer(1024 * 1024, 0),
m_HwDecodeCfg(nullptr),
m_Renderer(nullptr),
m_ConsecutiveFailedDecodes(0)
m_ConsecutiveFailedDecodes(0),
m_Pacer(nullptr)
{
av_init_packet(&m_Pkt);
SDL_AtomicSet(&m_QueuedFrames, 0);
@@ -91,19 +92,29 @@ void FFmpegVideoDecoder::reset()
dropFrame(&event.user);
}
else {
SDL_Delay(100);
SDL_Delay(10);
SDL_PumpEvents();
}
}
delete m_Pacer;
m_Pacer = nullptr;
delete m_Renderer;
m_Renderer = nullptr;
avcodec_free_context(&m_VideoDecoderCtx);
}
bool FFmpegVideoDecoder::completeInitialization(AVCodec* decoder, int videoFormat, int width, int height, bool testOnly)
bool FFmpegVideoDecoder::completeInitialization(AVCodec* decoder, SDL_Window* window,
int videoFormat, int width, int height,
int maxFps, bool testOnly)
{
m_Pacer = new Pacer(m_Renderer);
if (!m_Pacer->initialize(window, maxFps)) {
return false;
}
m_VideoDecoderCtx = avcodec_alloc_context3(decoder);
if (!m_VideoDecoderCtx) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
@@ -254,7 +265,7 @@ bool FFmpegVideoDecoder::initialize(
m_Renderer = new SdlRenderer();
if (vds != StreamingPreferences::VDS_FORCE_HARDWARE &&
m_Renderer->initialize(window, videoFormat, width, height, maxFps) &&
completeInitialization(decoder, videoFormat, width, height, false)) {
completeInitialization(decoder, window, videoFormat, width, height, maxFps, false)) {
return true;
}
else {
@@ -271,12 +282,12 @@ bool FFmpegVideoDecoder::initialize(
m_HwDecodeCfg = config;
// Submit test frame to ensure this codec really works
if (m_Renderer->initialize(window, videoFormat, width, height, maxFps) &&
completeInitialization(decoder, videoFormat, width, height, true)) {
completeInitialization(decoder, window, videoFormat, width, height, maxFps, true)) {
// OK, it worked, so now let's initialize it for real
reset();
if ((m_Renderer = createAcceleratedRenderer(config)) != nullptr &&
m_Renderer->initialize(window, videoFormat, width, height, maxFps) &&
completeInitialization(decoder, videoFormat, width, height, false)) {
completeInitialization(decoder, window, videoFormat, width, height, maxFps, false)) {
return true;
}
else {
@@ -380,7 +391,7 @@ int FFmpegVideoDecoder::submitDecodeUnit(PDECODE_UNIT du)
void FFmpegVideoDecoder::renderFrame(SDL_UserEvent* event)
{
AVFrame* frame = reinterpret_cast<AVFrame*>(event->data1);
m_Renderer->renderFrame(frame);
m_Pacer->submitFrame(frame);
SDL_AtomicDecRef(&m_QueuedFrames);
}
@@ -388,6 +399,9 @@ void FFmpegVideoDecoder::renderFrame(SDL_UserEvent* event)
void FFmpegVideoDecoder::dropFrame(SDL_UserEvent* event)
{
AVFrame* frame = reinterpret_cast<AVFrame*>(event->data1);
// We should really call Pacer::submitFrame() here and let it
// take care of it, but that will regress frame dropping for
// clients without an IVsyncSource implementation.
av_frame_free(&frame);
SDL_AtomicDecRef(&m_QueuedFrames);
}