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GStreamer error: can't play video #24180

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elaye opened this issue Sep 11, 2019 · 6 comments
Open

GStreamer error: can't play video #24180

elaye opened this issue Sep 11, 2019 · 6 comments
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A-content/media
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Media playback

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@elaye
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elaye commented Sep 11, 2019

I'm testing a very simple HTML file with just a video like this:

<!DOCTYPE html>
<html>
  <body>
    <video src="./video.mp4" type="video/mp4" controls style="display: block;"></video>
  </body>
</html>

The video doesn't display and I have the following error in the terminal:

[2019-09-11T12:15:47Z ERROR script::dom::htmlmediaelement] Player error: "Error from element /GstPlayBin:playbin/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstQTDemux:qtdemux0: GStreamer encountered a general stream error.\nGStreamer encountered a general stream error.\nqtdemux.c(7577): gst_qtdemux_process_adapter (): /GstPlayBin:playbin/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstQTDemux:qtdemux0:\nno \'moov\' atom within the first 10 MB"

The video plays fine in Quicktime Player, mpv and gst-play. I can play it in other browsers too.

My version of GStreamer is 1.16.0 and I'm running servo on MacOS 10.14.6 (Mojave).
@ceyusa
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ceyusa commented Sep 11, 2019

I always tested the video using a local http server (python's simple http). I don't know how the local resource works in this case, if it's fast enough to feed the player.

@ferjm
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ferjm commented Sep 11, 2019

@elaye thanks for the issue report. Could you share the mp4 you are testing with, please?

@ferjm
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ferjm commented Sep 11, 2019

This may be a dup or be related to #23241

@ferjm ferjm added this to To do in Media playback Sep 11, 2019
@elaye
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elaye commented Sep 11, 2019

@ceyusa good call ! I tried with a local http server and it works fine so my use of a local resource seems to be the issue.

@ferjm
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ferjm commented Sep 11, 2019

Ideally, we should make a/v playback from local resources work as reliably as possible as well :). So I would still like to investigate the reason of this error you are experiencing.

@elaye
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elaye commented Sep 12, 2019

It seems there are two different issues depending on the size of the video.
With a short video the playback freezes after a couple of frames and with a longer video I have the error mentioned above.
I put my tests online so you can try to reproduce it.

https://github.com/elaye/tests/tree/master/servo/local-video-playback

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@ceyusa @jdm @ferjm @elaye