From: José Relvas <josemonsantorelvas@gmail.com>
Date: Thu, 11 Jul 2024 19:31:11 +0000 (+0100)
Subject: screencastService: Add gstreamer pipeline for h264 low-power hw encode
X-Git-Tag: archive/raspbian/50.5-1+rpi1~1^2~226^2^2~18
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=44beaa0e1d66ae3950785eaa10d2400d37ddb1c0;p=gnome-shell.git

screencastService: Add gstreamer pipeline for h264 low-power hw encode

VA-API low-power encoder profiles (such as vah264lpenc) reduce power consumption by relying entirely on fixed-function hardware blocks.
Use vah264lpenc over vah264enc by default, in order to save on energy and 3D engine capacity.

Signed-off-by: José Relvas <josemonsantorelvas@gmail.com>
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3416>
---

diff --git a/js/dbusServices/screencast/screencastService.js b/js/dbusServices/screencast/screencastService.js
index c01aa830f..e82eae399 100644
--- a/js/dbusServices/screencast/screencastService.js
+++ b/js/dbusServices/screencast/screencastService.js
@@ -31,6 +31,17 @@ const DEFAULT_DRAW_CURSOR = true;
 const PIPELINE_BLOCKLIST_FILENAME = 'gnome-shell-screencast-pipeline-blocklist';
 
 const PIPELINES = [
+    {
+        id: 'hwenc-dmabuf-h264-vaapi-lp',
+        fileExtension: 'mp4',
+        pipelineString:
+            'capsfilter caps=video/x-raw(memory:DMABuf),format=DMA_DRM,max-framerate=%F/1 ! \
+             vapostproc ! \
+             vah264lpenc ! \
+             queue ! \
+             h264parse ! \
+             mp4mux fragment-duration=500 fragment-mode=first-moov-then-finalise',
+    },
     {
         id: 'hwenc-dmabuf-h264-vaapi',
         fileExtension: 'mp4',