This two patch series includes a patch for Spice (server) to automatically select h/w based encoder elements and another one for Spice-gtk (client) to automatically select h/w based decoder elements with Intel GPUs when these two conditions are met: - An Intel GPU is available and is active (driver loaded) - The relevant h/w based encoder/decoder elements are registered (i.e, Intel Media SDK Gstreamer plugin (libgstmsdk.so) and associated libraries (such as vaapi) are properly installed).
When tested on a Gen 12 Intel GPU (codenamed AlderLake/TigerLake) with Qemu/Spice + h/w encoder elements, we noticed that the time to encode a 1920x1080 BGRx frame was reduced to ~2-3 ms compared to ~12-16 ms with a s/w encoder (x264enc). Other advantages include reduced overall CPU utilization. However, once these patches are applied, the only way to force Spice/Spice-gtk to fallback to s/w based encoder/decoder is to remove the msdk and or vaapi plugins from GST_PLUGIN_PATH. This might be desirable for debugging purposes or for other reasons. Cc: Frediano Ziglio <[email protected]> Cc: Gerd Hoffmann <[email protected]> Cc: Marc-André Lureau <[email protected]> Cc: Dongwon Kim <[email protected]> Cc: Mazlan, Hazwan Arif <[email protected]> Cc: Teng, Jin Chung <[email protected]> Vivek Kasireddy (1): channel-display-gst: Use h/w based decoders with Intel GPUs if possible meson.build | 3 + src/channel-display-gst.c | 195 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 198 insertions(+) -- 2.39.2
