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[Bug] Gallery and QML Mediaplayer cannot play 36c3 videos

Tracked by Jolla (In release)

asked 2019-12-31 14:05:06 +0300

cy8aer gravatar image

updated 2019-12-31 14:10:12 +0300

Gallery and the QML Mediaplayer are not able to play 36c3 videos. But sailfish-browser is able to play webm.

Expected: Video is played Actual behavior: Error message in Gallery

  • Open the browser
  • Start the video via file:///-url
  • Then -> Video is played

if you try to start mp4 in the browser it also fails because of missing libraries!

I also tried to play a video via Qt.openUrlExternaly. This works with stream ("https://") videos because then the browser is started. It fails with local files because then the Gallery app is started to play.

I also tried qml Video (https://doc.qt.io/qt-5/qml-qtmultimedia-video.html) but it fails on both - stream and file - too.

I expect that these video fail because of multi lang. There should be some older bug from me somewhere...

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Pretty sure the browser is still on its own software codecs, as performance on Youtube is still bad with webm/vpX. I too am curious what is keeping the new fancy HW acceleration from playing these 36c3 videos.

attah ( 2019-12-31 14:11:38 +0300 )edit

did you tried lls?

coderus ( 2019-12-31 15:18:10 +0300 )edit

@coderus: hm I try to play offline videos out of my new congress app - with harbour-tools. And that does not work. Of course lls would do but this is not found on an out of the box device :-(

cy8aer ( 2019-12-31 23:35:56 +0300 )edit

but if it can then you can steal some code of it

coderus ( 2020-01-03 11:53:52 +0300 )edit

1 Answer

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answered 2020-01-03 14:42:33 +0300

Andy Branson gravatar image

Looks like there's something unusual in the VP8 video stream that's causing the droid hw codec to error out. If you disable that in gst-droid config then it falls back to libvpx sw decoding which plays the video correctly. Needs more investigation to find out what's wrong down there - we don't get much more than an EOS out of it.

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Asked: 2019-12-31 14:05:06 +0300

Seen: 275 times

Last updated: Jan 03 '20