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Add a libplacebo-based Vulkan renderer for HDR and Vulkan video decoding support

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Vulkan H.264/HEVC video decoding isn't supported with Fedora's Mesa binaries due to
patent issues, so only the VAAPI/DRM-PRIME import path was tested locally with ANV.

HDR video is getting tonemapped to my SDR monitor reasonably, so HDR output probably
works with GameScope but I haven't confirmed yet.

See #1117
This commit is contained in:
Cameron Gutman
2023-12-12 23:54:23 -06:00
parent 1ef083c952
commit aac5ad3fd0
9 changed files with 852 additions and 20 deletions
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59
app/streaming/video/ffmpeg.cpp
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@@ -40,6 +40,10 @@
#include "ffmpeg-renderers/cuda.h"
#endif
#ifdef HAVE_LIBPLACEBO_VULKAN
#include "ffmpeg-renderers/plvk.h"
#endif
// This is gross but it allows us to use sizeof()
#include "ffmpeg_videosamples.cpp"
@@ -288,21 +292,47 @@ void FFmpegVideoDecoder::reset()
bool FFmpegVideoDecoder::createFrontendRenderer(PDECODER_PARAMETERS params, bool useAlternateFrontend)
{
if (useAlternateFrontend) {
#ifdef HAVE_DRM
// If we're trying to stream HDR, we need to use the DRM renderer in direct
// rendering mode so it can set the HDR metadata on the display. EGL does
// not currently support this (and even if it did, Mesa and Wayland don't
// currently have protocols to actually get that metadata to the display).
if ((params->videoFormat & VIDEO_FORMAT_MASK_10BIT) && m_BackendRenderer->canExportDrmPrime()) {
m_FrontendRenderer = new DrmRenderer(false, m_BackendRenderer);
if (m_FrontendRenderer->initialize(params)) {
return true;
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(m_BackendRenderer);
if (m_FrontendRenderer->initialize(params) && (m_FrontendRenderer->getRendererAttributes() & RENDERER_ATTRIBUTE_HDR_SUPPORT)) {
return true;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
}
#endif
#ifdef HAVE_DRM
// If we're trying to stream HDR, we need to use the DRM renderer in direct
// rendering mode so it can set the HDR metadata on the display. EGL does
// not currently support this (and even if it did, Mesa and Wayland don't
// currently have protocols to actually get that metadata to the display).
if (m_BackendRenderer->canExportDrmPrime()) {
m_FrontendRenderer = new DrmRenderer(false, m_BackendRenderer);
if (m_FrontendRenderer->initialize(params) && (m_FrontendRenderer->getRendererAttributes() & RENDERER_ATTRIBUTE_HDR_SUPPORT)) {
return true;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
}
#endif
#if defined(HAVE_LIBPLACEBO_VULKAN) && defined(VULKAN_IS_SLOW)
if (m_BackendRenderer->getRendererType() != IFFmpegRenderer::RendererType::Vulkan) {
m_FrontendRenderer = new PlVkRenderer(m_BackendRenderer);
if (m_FrontendRenderer->initialize(params) && (m_FrontendRenderer->getRendererAttributes() & RENDERER_ATTRIBUTE_HDR_SUPPORT)) {
return true;
}
delete m_FrontendRenderer;
m_FrontendRenderer = nullptr;
}
#endif
}
#if defined(HAVE_EGL) && !defined(GL_IS_SLOW)
if (m_BackendRenderer->canExportEGL()) {
m_FrontendRenderer = new EGLRenderer(m_BackendRenderer);
@@ -313,6 +343,7 @@ bool FFmpegVideoDecoder::createFrontendRenderer(PDECODER_PARAMETERS params, bool
m_FrontendRenderer = nullptr;
}
#endif
// If we made it here, we failed to create the EGLRenderer
return false;
}
@@ -783,6 +814,10 @@ IFFmpegRenderer* FFmpegVideoDecoder::createHwAccelRenderer(const AVCodecHWConfig
#ifdef HAVE_DRM
case AV_HWDEVICE_TYPE_DRM:
return new DrmRenderer(true);
#endif
#ifdef HAVE_LIBPLACEBO_VULKAN
case AV_HWDEVICE_TYPE_VULKAN:
return new PlVkRenderer(nullptr);
#endif
default:
return nullptr;