217580 2020-10-11 08:47:48 -0700 [GStreamer] Peertube videos don't play 2020-10-15 07:23:24 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build Unspecified Linux RESOLVED DUPLICATE 165394 P2 Normal --- 1 hoboprimate webkit-unassigned aperez bugs-noreply pnormand oldest_to_newest 1696632 0 hoboprimate 2020-10-11 08:47:48 -0700 Videos from peertube websites don't play, tested on Epiphany 3.38. From https://peer.tube/ : "PeerTube, a federated (ActivityPub) video streaming platform using P2P (BitTorrent) directly in the web browser with WebTorrent and Angular." 1696633 1 hoboprimate 2020-10-11 08:48:47 -0700 Example video link: https://peer.tube/videos/watch/5a370009-1868-46de-a5c2-2b34405fc5c7 1696634 2 hoboprimate 2020-10-11 08:50:20 -0700 Correction, audio plays but not video, as seen in the following video: https://peer.tube/videos/watch/f3cb1945-a8f7-481f-a465-946c6f884e50 1696825 3 aperez 2020-10-12 05:49:26 -0700 (In reply to hoboprimate from comment #2) > Correction, audio plays but not video, as seen in the following video: > > https://peer.tube/videos/watch/f3cb1945-a8f7-481f-a465-946c6f884e50 This one plays fine for me, both with current stable (WebKitGTK 2.30.1) and a recent build from “trunk”; the video seems to be encoded with H.264 (and AAC for the audio), so I suspect your system maybe does not have a GStreamer plug-in installed to decode H.264. For example here I have the following in my system % gst-inspect-1.0 | grep -i '264.*dec' va: vah264dec: VA-API H.264 Decoder libav: avdec_h264: libav H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 decoder % The fist one is provided by gstreamer-vaapi [1] (hardware accelerated, works will with Intel GPUs, but YMMV with others) and the second comes from gst-libav [2], which should work everywhere (as it's software based). There is also a decode based on OpenH264 included as part of the gst-plugins-bad package (which I do not have installed). You may want to check which packages include those in your distribution, and install them. If after that, the video still doesn't play, please let us know — we may need to ask you for a GStreamer debug log to figure out what the exact problem is. --- [1] https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi [2] https://gitlab.freedesktop.org/gstreamer/gst-libav 1696826 4 aperez 2020-10-12 05:54:35 -0700 (In reply to hoboprimate from comment #1) > Example video link: > > https://peer.tube/videos/watch/5a370009-1868-46de-a5c2-2b34405fc5c7 OTOH for this one I get the video, but not the audio… Downloading the video I see that the audio codec is also AAC — same as for the other one which played fine; puzzling! Leaving this here as a hint, in case it helps the multimedia savvy people: checking from the Web Inspector the <video> element has a VideoTrack associated, but there is no AudioTrack; the player seems to be using MSE. 1696827 5 aperez 2020-10-12 05:59:09 -0700 Adding [GStreamer] tag: The missing audio issue for the first video linked also affects WPE. 1696847 6 hoboprimate 2020-10-12 08:10:18 -0700 (In reply to Adrian Perez from comment #4) > (In reply to hoboprimate from comment #1) > > Example video link: > > > > https://peer.tube/videos/watch/5a370009-1868-46de-a5c2-2b34405fc5c7 > > OTOH for this one I get the video, but not the audio… Downloading the > video I see that the audio codec is also AAC — same as for the other > one which played fine; puzzling! After installing all gstreamer codecs (I was missing a "bad" package) I'm now getting the same results as you :) The first link plays correctly, and this one doesn't play audio. 1697211 7 pnormand 2020-10-13 02:47:20 -0700 Here with MiniBrowser from trunk: (In reply to hoboprimate from comment #1) > Example video link: > > https://peer.tube/videos/watch/5a370009-1868-46de-a5c2-2b34405fc5c7 Video plays, no audio. (In reply to hoboprimate from comment #2) > Correction, audio plays but not video, as seen in the following video: > > https://peer.tube/videos/watch/f3cb1945-a8f7-481f-a465-946c6f884e50 Video and audio play fine. 1698074 8 pnormand 2020-10-15 05:10:08 -0700 (In reply to Philippe Normand from comment #7) > Here with MiniBrowser from trunk: > > (In reply to hoboprimate from comment #1) > > Example video link: > > > > https://peer.tube/videos/watch/5a370009-1868-46de-a5c2-2b34405fc5c7 > > Video plays, no audio. > I've checked this, the issue is that the same SourceBuffer exposes a video and an audio track, which is not supported in the GStreamer backend yet. See https://bugs.webkit.org/show_bug.cgi?id=165394 So I'd close this bug if nobody opposes. 1698094 9 aperez 2020-10-15 07:23:24 -0700 (In reply to Philippe Normand from comment #8) > (In reply to Philippe Normand from comment #7) > > Here with MiniBrowser from trunk: > > > > (In reply to hoboprimate from comment #1) > > > Example video link: > > > > > > https://peer.tube/videos/watch/5a370009-1868-46de-a5c2-2b34405fc5c7 > > > > Video plays, no audio. > > > > I've checked this, the issue is that the same SourceBuffer exposes a video > and an audio track, which is not supported in the GStreamer backend yet. See > https://bugs.webkit.org/show_bug.cgi?id=165394 > > So I'd close this bug if nobody opposes. In comment 6 the reporter has confirmed that installing the needed GStreamer elements H.264 video decoding works as expected, so I agree that we can keep tracking the remaining issue in bug #165394 and close this one as duplicate. With this bug report we have now a good publicly available reproducer for multiple streams issue, so thanks to the reporter for that! 🤘️ *** This bug has been marked as a duplicate of bug 165394 ***