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    [Duplicated]ffmpeg video decoder problem

    Opera for Windows
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    • burnout426
      burnout426 Volunteer last edited by

      Already tried settings and flags for hardware acceleration and re-installing.

      So, you tried with hardware acceleration off at the URL opera://settings/system and you tried with hardware acceleration on while messing with the Angle flag?

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      • burnout426
        burnout426 Volunteer @kinodegna last edited by

        @kinodegna said in [Duplicated]ffmpeg video decoder problem:

        @leocg for example any mp4 file https://codeda.com/data/syncTest.mp4 or locally downloaded file:///D:/Downloads/syncTest.mp4

        That plays fine for me on Windows 11 Version 22H2 (Build 22621.1105) in Opera 94.0.4606.54 64-bit.

        I do notice that with this particular mp4, it has opus for audio instead of aac. Not sure if that matters for Opera and Vivaldi's use of Windows 10's Media Foundation. Maybe though.

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        • burnout426
          burnout426 Volunteer last edited by

          Also, could you provide the full opera://media-internals log?

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          • burnout426
            burnout426 Volunteer last edited by

            Following https://support.microsoft.com/en-us/windows/media-feature-pack-for-windows-10-11-n-september-2022-78cfeea5-c7d9-4aa8-b38f-ee4df1392009 anyway to see if that helps with playback of h.264 videos.

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              kinodegna Anawilliam 2 Replies Last reply
            • kinodegna
              kinodegna @burnout426 last edited by kinodegna

              @burnout426 I have already checked several times (and ways): all this N-version packages are not supported by my version of Windows 10
              Here is full log:
              https://codeda.com/data/media-internals.txt
              If you have some better mp4 for testing I will test on it
              Also tried all 5 variants in "Choose ANGLE graphics backend" and hardware acceleration in opera://settings/system and opera://flags/#disable-accelerated-video-decode and opera://flags/#disable-accelerated-video-encode

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                burnout426 2 Replies Last reply
              • burnout426
                burnout426 Volunteer @kinodegna last edited by

                @kinodegna Another question. Did this just start happening? As in, did Opera play mp4 files no problem until recently?

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                • burnout426
                  burnout426 Volunteer @kinodegna last edited by

                  @kinodegna said in [Duplicated]ffmpeg video decoder problem:

                  If you have some better mp4 for testing I will test on it

                  What about the video-only ones at https://test-videos.co.uk/bigbuckbunny/mp4-h264?

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                  • burnout426
                    burnout426 Volunteer last edited by

                    Try test standalone installations of regular Opera, Opera GX, Opera Beta, and Opera Developer. Just curious if any of them play mp4s for you. Guessing not, but...

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                    • burnout426
                      burnout426 Volunteer last edited by

                      You can try this tool. There's an option under "Fixes" to reset the Media Foundation. You can try to see if that helps.

                      Also, if possible, temporarily create a new local user account (not tied to a Microsoft account) on Windows, log into it and try Opera and Vivaldi there just to see if it works there.

                      Could be a recent Windows update broke something with the media foundation configuration.

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                      • kinodegna
                        kinodegna last edited by kinodegna

                        @burnout426 it has happened after upgrading Windows 7 to Windows 10 with Media Creation Tool
                        I have created new Windows account, installed and tested on all 4 versions just after installation and had same problem on every of them. Didn't try Vivaldi there because it was first time I ever installed it.
                        And yes, it happens on video-only mp4 files. But if I create audio-only mp4 it plays fine
                        Also tried all fixes from Codec Tweak Tool > General > Fixes (including Reset Media Foundation). Even after system reboot nothing changes for the problem.

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                          burnout426 1 Reply Last reply
                        • burnout426
                          burnout426 Volunteer @kinodegna last edited by

                          @kinodegna said in [Duplicated]ffmpeg video decoder problem:

                          it has happened after upgrading Windows 7 to Windows 10 with Media Creation Tool

                          Hmm, there could be something to that. I guess you could check your system files.

                          Installing Windows 10 from scratch (no upgrade) has a high probability of fixing it (unless it has something to do with the Enterprise version of Windows).

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                            kinodegna 1 Reply Last reply
                          • kinodegna
                            kinodegna @burnout426 last edited by

                            @burnout426 already tried both dism and sfc. All system files are OK. It was my first idea.
                            And of course installing Windows from scratch will help. But I have no option to do it now.

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                            • kinodegna
                              kinodegna last edited by

                              What is a difference between decoding h264 in Chrome/Edge (where is no issue) and Opera/Vivaldi?

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                                leocg 1 Reply Last reply
                              • leocg
                                leocg Moderator Volunteer @kinodegna last edited by

                                @kinodegna Chrome/Edge has the license to use the h264 codec and don't depend on the OS for it like Opera and Vivaldi.

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                                • burnout426
                                  burnout426 Volunteer last edited by

                                  In Windows, at "Settings -> Apps -> Optional Features -> More Windows Features" (optionalfeatures.exe), instead of just checking if Windows Media Player is enabled under "Media Features", try removing Windows Media Player and then adding it back in.

                                  I'm surprised that h.264 works in Windows Media Player but not in Opera. Under "Legacy Components", do you happen to have "Direct Play" enabled? It's not enabled here.

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                                    kinodegna 1 Reply Last reply
                                  • burnout426
                                    burnout426 Volunteer last edited by

                                    Are you running Opera and Vivaldi directly or via something like Sandboxie?

                                    Any security software (anti-virus or other) that you're able to disable temporarily to see if it's interfering for some weird reason?

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                                      kinodegna 1 Reply Last reply
                                    • kinodegna
                                      kinodegna @burnout426 last edited by

                                      @burnout426 only ESET NOD32 Antivirus. I've just removed it (and its services) from windows startup and re-tested. The problem is still present.

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                                      • kinodegna
                                        kinodegna @burnout426 last edited by kinodegna

                                        @burnout426 said in [Duplicated]ffmpeg video decoder problem:

                                        Direct Play

                                        What is it? How can check if it enabled?

                                        I've removed WMP, check that it was actually removed after rebooting, then added the component back and rebooted again. WMP still plays h264 and Opera still can't.

                                        Also, as I remember, the only thing that I have been asked to remove to continue updating Windows 7 to Windows 10 was Windows Media Player. But after update it was already installed.

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                                          kinodegna 1 Reply Last reply
                                        • kinodegna
                                          kinodegna @kinodegna last edited by kinodegna

                                          Found Legacy Components in optionalfeatures.exe. It's not checked and child "Direct Play" also not checked.
                                          I've enabled it and rebooted - no changes, disabled and rebooted - still no changes.

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                                            burnout426 1 Reply Last reply
                                          • burnout426
                                            burnout426 Volunteer @kinodegna last edited by

                                            @kinodegna said in [Duplicated]ffmpeg video decoder problem:

                                            "Direct Play"

                                            It's the old way of providing codecs for Windows. It won't have any effect on Opera and Vivaldi, but I was wondering if that's how h.264 was still working in Windows Media Player.

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