Bug 218221 – [GStreamer][WebRTC] Support for VP9 Profile 2 (10-bit color) encoding

• Component: WebRTC
• Status: RESOLVED FIXED

[Carlos Alberto Lopez Perez]

On r268971 support for  VP9 Profile 2 (10-bit color) was added, but the feature is not working still for the GTK or WPE ports.

The layout test webrtc/vp9-profile2.html added on r268971 fails with:

--- /home/igalia/clopez/webkit/webkit-flatpak/layout-test-results/webrtc/vp9-profile2-expected.txt
+++ /home/igalia/clopez/webkit/webkit-flatpak/layout-test-results/webrtc/vp9-profile2-actual.txt
@@ -1,10 +1,4 @@
 
 
-PASS VP9 profile 2 in getCapabilities
-PASS Verify VP9 activation
-PASS Setting video exchange
-PASS Ensuring connection state is connected
-PASS Track is enabled, video should not be black
-PASS Track is disabled, video should be black
-PASS Track is enabled, video should not be black 2
+FAIL VP9 profile 2 in getCapabilities assert_equals: expected 1 but got 0

[Carlos Alberto Lopez Perez]

Updated expectations in r269021

[Philippe Normand]

I had a look at this one, a few notes:

- the libvpx shipped in the SDK doesn't support high bit depth pixel formats, but that's easy to fix (--enable-vp9-highbitdepth configure option)
- the gst 1.18 vp9dec still chokes after fixing libvpx
- gst 1.19 vp9dec works better thanks to the vp9parse element autoplugged in decodebin3
- the test still fails, here's the diff:

--- /app/webkit/WebKitBuild/Release/layout-test-results/webrtc/vp9-profile2-expected.txt
+++ /app/webkit/WebKitBuild/Release/layout-test-results/webrtc/vp9-profile2-actual.txt
@@ -4,7 +4,7 @@
 PASS Verify VP9 activation
 PASS Setting video exchange
 PASS Ensuring connection state is connected
-PASS Track is enabled, video should not be black
-PASS Track is disabled, video should be black
-PASS Track is enabled, video should not be black 2
+FAIL Track is enabled, video should not be black promise_test: Unhandled rejection with value: object "IndexSizeError: The index is not in the allowed range."
+FAIL Track is disabled, video should be black promise_test: Unhandled rejection with value: object "IndexSizeError: The index is not in the allowed range."
+FAIL Track is enabled, video should not be black 2 promise_test: Unhandled rejection with value: object "IndexSizeError: The index is not in the allowed range."
 

I suspect the decoded video dimensions are not correctly propagated from the player to the media element.

[Philippe Normand]

Re-purposing to GstWebRTC. Patch incoming.

[Philippe Normand]

Pull request: https://github.com/WebKit/WebKit/pull/2414

[EWS]

Committed 252497@main (d3c0cebbf427): <https://commits.webkit.org/252497@main>

Reviewed commits have been landed. Closing PR #2414 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/97068026>