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Allow DrmRenderer to act as a non-DRM hwaccel backend

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This case basically works like a degenerate case of a DRM hwaccel
without DRM master where we just provide EGL export functionality
except that we don't even need a DRM FD in this case.

There are patches floating around the FFmpeg list for this:
https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=12604
This commit is contained in:
Cameron Gutman
2024-08-17 16:51:48 -05:00
parent 8e2aa87c4f
commit 1bb16be183
3 changed files with 77 additions and 47 deletions
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17
app/streaming/video/ffmpeg.cpp
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@@ -324,7 +324,7 @@ bool FFmpegVideoDecoder::createFrontendRenderer(PDECODER_PARAMETERS params, bool
// 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);
m_FrontendRenderer = new DrmRenderer(AV_HWDEVICE_TYPE_NONE, m_BackendRenderer);
if (m_FrontendRenderer->initialize(params) && (m_FrontendRenderer->getRendererAttributes() & RENDERER_ATTRIBUTE_HDR_SUPPORT)) {
return true;
}
@@ -385,7 +385,7 @@ bool FFmpegVideoDecoder::createFrontendRenderer(PDECODER_PARAMETERS params, bool
#if (defined(VULKAN_IS_SLOW) || defined(GL_IS_SLOW)) && defined(HAVE_DRM)
// Try DrmRenderer first if we have a slow GPU
m_FrontendRenderer = new DrmRenderer(false, m_BackendRenderer);
m_FrontendRenderer = new DrmRenderer(AV_HWDEVICE_TYPE_NONE, m_BackendRenderer);
if (m_FrontendRenderer->initialize(params)) {
return true;
}
@@ -899,14 +899,23 @@ IFFmpegRenderer* FFmpegVideoDecoder::createHwAccelRenderer(const AVCodecHWConfig
#endif
#ifdef HAVE_DRM
case AV_HWDEVICE_TYPE_DRM:
return new DrmRenderer(true);
return new DrmRenderer(hwDecodeCfg->device_type);
#endif
#ifdef HAVE_LIBPLACEBO_VULKAN
case AV_HWDEVICE_TYPE_VULKAN:
return new PlVkRenderer(true);
#endif
default:
return nullptr;
switch (hwDecodeCfg->pix_fmt) {
#ifdef HAVE_DRM
case AV_PIX_FMT_DRM_PRIME:
// Support out-of-tree non-DRM hwaccels that output DRM_PRIME frames
// https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=12604
return new DrmRenderer(hwDecodeCfg->device_type);
#endif
default:
return nullptr;
}
}
}
// Second pass for our second-tier hwaccel implementations