1602660 - Webm file with odd audio track is detected as corrupted by Firefox - NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005)

Status: NEW

(Core :: Audio/Video: Playback, defect, P3)

Description

[Nicolas Roy-Renaud]

Attachment: (Corrupted?) WebM file with a silent Opus audio track and a still placeholder image

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:70.0) Gecko/20100101 Firefox/70.0

Steps to reproduce:

1. Try to open the attached file in VLC (or any video player)
2. Try to open the attached file in Chromium (or any non-Firefox browser)
3. Try to open the attached file in Firefox

Actual results:

VLC and Chromium can decode the file without issues, but Firefox reports it as being corrupted because of a problem with the audio track.

Expected results:

Firefox should decode the attached webm file correctly.

Comment 1

[Gingerbread Man]

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0
20191209215019

It plays in Vivaldi 2.9. Browser Console output:

Media resource https://bugzilla.mozilla.org/attachment.cgi?id=9114798 could not be decoded. attachment.cgi
Media resource https://bugzilla.mozilla.org/attachment.cgi?id=9114798 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) attachment.cgi

Comment 2

[Vitaly Zdanevich]

Looks like my case also - recorded this video (without audio) with this command:

ffmpeg -f x11grab -video_size 1920x1080 -framerate 25 -i :0 -c:v libvpx-vp9 out.webm

Plays in Chromium.