1801483 - "No video with supported format and MIME type found" error (mp4 w/HEVC encoding)

Status: RESOLVED DUPLICATE of bug 1332136

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

Description

[Imtiaz]

Attachment: Screenshot 2022-11-19 at 20-19-33 Android 14 will let the predictive back gesture work inside apps.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:107.0) Gecko/20100101 Firefox/107.0

Steps to reproduce:

Go to https://9to5google.com/2022/11/14/android-14-predictive-back-gesture/ and scroll down.

Opening the video link in new tab (https://9to5google.com/wp-content/uploads/sites/4/2022/11/back-preview-android-14.mp4) doesn't work either.

Actual results:

The video doesn't play & show the error instead.

Expected results:

The video was supposed to play, but it didn't.

Works without any problem in Microsoft Edge 107.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Mayank Bansal]

Can repro with Nightly.

Comment 3

[Mayank Bansal]

Attachment: about:support

Comment 4

[Jim Mathies [:jimm]]

Console -
Media resource https://9to5google.com/wp-content/uploads/sites/4/2022/11/back-preview-android-14.mp4 could not be decoded. back-preview-android-14.mp4
Media resource https://9to5google.com/wp-content/uploads/sites/4/2022/11/back-preview-android-14.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_DEMUXER_ERR (0x806e000c)
Details: virtual RefPtr<MP4Demuxer::InitPromise> __cdecl mozilla::MP4Demuxer::Init(void): No MP4 audio () or video () tracks

Comment 5

[John Lin [:jhlin][:jolin]]

I downloaded the file and checked it with ffprobe. The video is encoded in HEVC:

 Stream #0:0[0x1](und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, progressive), 526x592 [SAR 527:526 DAR 527:592], 1074 kb/s, 59.89 fps, 50 tbr, 12800 tbn (default)

which we do not support.