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Improve initialization performance when using Vulkan Video decoding

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This commit is contained in:
Cameron Gutman
2025-12-07 17:57:22 -06:00
parent 9c6d2bab19
commit dbcc6a9089
1 changed files with 19 additions and 22 deletions
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41
app/streaming/video/ffmpeg.cpp
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@@ -339,19 +339,20 @@ bool FFmpegVideoDecoder::initializeRendererInternal(IFFmpegRenderer* renderer, P
bool FFmpegVideoDecoder::createFrontendRenderer(PDECODER_PARAMETERS params, bool useAlternateFrontend)
{
if (useAlternateFrontend) {
// For cases where we're already using Vulkan Video decoding, always use the Vulkan renderer too.
// The alternate frontend logic is primarily for cases where a different renderer like EGL or DRM
// may provide additional performance or HDR capabilities. Neither of these are true for Vulkan.
if (useAlternateFrontend && m_BackendRenderer->getRendererType() != IFFmpegRenderer::RendererType::Vulkan) {
if (params->videoFormat & VIDEO_FORMAT_MASK_10BIT) {
#if defined(HAVE_LIBPLACEBO_VULKAN) && !defined(VULKAN_IS_SLOW)
// The Vulkan renderer can also handle HDR with a supported compositor. We prefer
// rendering HDR with Vulkan if possible since it's more fully featured than DRM.
if (m_BackendRenderer->getRendererType() != IFFmpegRenderer::RendererType::Vulkan) {
m_FrontendRenderer = new PlVkRenderer(false, m_BackendRenderer);
if (initializeRendererInternal(m_FrontendRenderer, params) && (m_FrontendRenderer->getRendererAttributes() & RENDERER_ATTRIBUTE_HDR_SUPPORT)) {
return true;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
m_FrontendRenderer = new PlVkRenderer(false, m_BackendRenderer);
if (initializeRendererInternal(m_FrontendRenderer, params) && (m_FrontendRenderer->getRendererAttributes() & RENDERER_ATTRIBUTE_HDR_SUPPORT)) {
return true;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
#endif
#ifdef HAVE_DRM
@@ -370,28 +371,24 @@ bool FFmpegVideoDecoder::createFrontendRenderer(PDECODER_PARAMETERS params, bool
#endif
#if defined(HAVE_LIBPLACEBO_VULKAN) && defined(VULKAN_IS_SLOW)
if (m_BackendRenderer->getRendererType() != IFFmpegRenderer::RendererType::Vulkan) {
m_FrontendRenderer = new PlVkRenderer(false, m_BackendRenderer);
if (initializeRendererInternal(m_FrontendRenderer, params) && (m_FrontendRenderer->getRendererAttributes() & RENDERER_ATTRIBUTE_HDR_SUPPORT)) {
return true;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
m_FrontendRenderer = new PlVkRenderer(false, m_BackendRenderer);
if (initializeRendererInternal(m_FrontendRenderer, params) && (m_FrontendRenderer->getRendererAttributes() & RENDERER_ATTRIBUTE_HDR_SUPPORT)) {
return true;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
#endif
}
else
{
#ifdef HAVE_LIBPLACEBO_VULKAN
if (qgetenv("PREFER_VULKAN") == "1") {
if (m_BackendRenderer->getRendererType() != IFFmpegRenderer::RendererType::Vulkan) {
m_FrontendRenderer = new PlVkRenderer(false, m_BackendRenderer);
if (initializeRendererInternal(m_FrontendRenderer, params)) {
return true;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
m_FrontendRenderer = new PlVkRenderer(false, m_BackendRenderer);
if (initializeRendererInternal(m_FrontendRenderer, params)) {
return true;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
}
#endif
}