顯示問題標籤 顯示所有問題
  • 已解決
  • 封存

Video playback not working correctly.

Video playback is not working correctly on Windows 8.1 Pro and Firefox version 43.0.4. I've attached an error message I keep getting on YouTube. I get problems off and on… (閱讀更多)

Video playback is not working correctly on Windows 8.1 Pro and Firefox version 43.0.4. I've attached an error message I keep getting on YouTube. I get problems off and on playing video on Dallas Cowboys. com. MSN videos load very slowly and sometimes don't play at all. I've run them in safe mode so I don't think it is the extensions that I use. I have removed Ghostery and Adblock Plus. When I use Google Chrome all these sites load quickly, play with no errors even with Ghostery and Adblock Plus extensions running. What am I missing and how do I fix it?

peterparseghian 於 4 年前 詢問

FredMcD 於 4 年前 解答

  • 封存

Cannot play YouTube HTML5 HD 60fps Videos

Cannot play a single HD video on YouTube using FireFox using HTML5 and Flash. The video stutters and then drops frames and an insane rate while the audio keeps going. I u… (閱讀更多)

Cannot play a single HD video on YouTube using FireFox using HTML5 and Flash. The video stutters and then drops frames and an insane rate while the audio keeps going. I used to be able to play 720p 60fps videos on Firefox but even those drop frames now. I don't understand why since YouTube works fine on Microsoft Edge but I would much rather continue using FIrefox than that so some help here would be greatly appreciated. My specs (laptop): Windows 10 Pro 64-bit AMD E-450 APU with Radeon HD 6320 Graphics 1.65 GHz 4.00 GB RAM Wired connection.

Thank you.

Dessembrae 於 4 年前 詢問

cor-el 最近回覆 於 4 年前

  • 封存

On my new website I cannot get a webm to play

Hi all, First off I'm using Firefox 44 currently and I've used a copy on my work PC that has well used user profile and also a fresh install on my home laptop without any… (閱讀更多)

Hi all,

First off I'm using Firefox 44 currently and I've used a copy on my work PC that has well used user profile and also a fresh install on my home laptop without any additional addons with the same result.

I'm struggling to make html5 videos work across all browsers. I thought I had this nailed until I realised it had stopped working in Firefox. I'm currently using the following code to load video via a html5 webpage (I know this is html talk but please bear with me as I believe it more likely be a bug with firefox than my code):


EDIT: ok so it won't show my html 5 code properly and I can't find any instructions on how I should put html5 code into the questions on this support forum, so here it is in [tags], just replace the [] with <>

<!-- first try HTML5 playback: if serving as XML, expand `controls` to `controls="controls"` and autoplay likewise -->
<!-- warning: playback does not work on iOS3 if you include the poster attribute! fixed in iOS4.0 -->
<video width="900" height="506" poster="videos/poster.jpg" onclick="this.play()" preload="none" controls>
<source src="videos/playme.webmhd.webm" type="video/webm" /><!-- Chrome10+, Ffx4+, Opera10.6+ -->
<source src="videos/playme.mp4" type="video/mp4" /><!-- Safari / iOS, IE9 -->
<source src="videos/playme.oggtheora.ogv" type="video/ogg" /><!-- Firefox3.6+ / Opera 10.5+ -->						

<!-- fallback to Flash: -->
<object width="900" height="506" type="application/x-shockwave-flash" data="videos/player.swf">
<!-- Firefox uses the `data` attribute above, IE/Safari uses the param below -->
<param name="movie" value="videos/player.swf" />
<param name="allowFullScreen" value="true" />
<param name="allowScriptAccess" value="sameDomain" />
<param name="flashvars" value='autostart=true&amp;controlbar=over&amp;file=https://www.examplesite.com/videos/playme.mp4' />
<!-- fallback image -->
<img src="videos/No_Playback.jpg" width="900" height="506" alt="Oops No Playback"  title="Your browser cannot play this file, please use another browser" />
</object>
</video>

The page has several videos listed all with the same result. I don't believe its the code causing any issue either as even if I load the webm video directly in the url it still will not play. I've loaded the webm video in chrome without problem.

I can see from the network tab of the web console that it is trying to load the webm file and that the MIME type is correct, but it just displays the poster for the video and the correct length of the video. If I hit play it won't play, similarly if I try to seek it won't either. I've tried it with multiple videos too.

I did initially convert the videos from mp4 h264 into a webm using the webmhd preset in miro video converter. However I've also used the following command using ffmpeg to reconvert the video as suggested elsewhere online:

ffmpeg -i input.webm -codec copy -avoid_negative_ts 1 output.webm

As it is suggested that it could be a bug with negative timestamps in some version of firefox, but this still fails to load anything but the first video frame.

I've attached a screenshot of what I can see. The poster is a yellow jpg which states press play, so what you're actually seeing is the first frame of the webm video after I've hit play (as preload has been set to none).

I'm assuming it doesn't use the mp4 as a fallback because the webm should be working? I don't want to have to put the mp4 first as its larger in file size and not an open standard that will be permanently adopted. Plus the mp4s seem to take an age to load on android mobiles.

Now this code works fine in all other browsers, as does the webm files as stated above, except for either Firefox or Firefox Mobile on Android (can't test it on Mac as not an apple owner). I've tied it on various PCs and laptops (windows 7 & 10), and also my Sony xperia Z3. Currently using my windows 10 hp omen to type this.

ffmpeg video conversion output:

C:\ffmpeg\bin>ffmpeg -i input.webmhd.webm -codec copy -avoid_negative_ts 1 output.webm ffmpeg version N-79889-g9486de5 Copyright (c) 2000-2016 the FFmpeg developers

 built with gcc 5.3.0 (GCC)
 configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
 libavutil      55. 24.100 / 55. 24.100
 libavcodec     57. 40.100 / 57. 40.100
 libavformat    57. 36.100 / 57. 36.100
 libavdevice    57.  0.101 / 57.  0.101
 libavfilter     6. 45.100 /  6. 45.100
 libswscale      4.  1.100 /  4.  1.100
 libswresample   2.  0.101 /  2.  0.101
 libpostproc    54.  0.100 / 54.  0.100

Input #0, matroska,webm, from 'input.webmhd.webm':

 Metadata:
   encoder         : Lavf54.3.100
   creation_time   : 1970-01-01 00:00:00
 Duration: 00:01:28.54, start: -0.002000, bitrate: 232 kb/s
   Stream #0:0(eng): Video: vp8, yuv420p, 1280x716, SAR 1:1 DAR 320:179, 15 fps, 15 tbr, 1k tbn (default)
   Stream #0:1(eng): Audio: vorbis, 44100 Hz, stereo, fltp (default)

[webm @ 000000000258e740] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.

   Last message repeated 1 times

Output #0, webm, to 'output.webm':

 Metadata:
   encoder         : Lavf57.36.100
   Stream #0:0(eng): Video: vp8, yuv420p, 1280x716 [SAR 1:1 DAR 320:179], q=2-31, 15 fps, 15 tbr, 1k tbn (default)
   Stream #0:1(eng): Audio: vorbis, 44100 Hz, stereo (default)

Stream mapping:

 Stream #0:0 -> #0:0 (copy)
 Stream #0:1 -> #0:1 (copy)

Press [q] to stop, [?] for help frame= 1328 fps=0.0 q=-1.0 Lsize= 2509kB time=00:01:28.52 bitrate= 232.1kbits/s speed=2.34e+003x video:1794kB audio:674kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.643398%

I am happy to provide sample webm videos or any other necessary information you may require. Please let me know.

Any help would be greatly appreciated, thank you.

bottyz 於 4 年前 詢問

jscher2000 最近回覆 於 4 年前

  • 已解決
  • 封存

YouTube videos stopped playing on V 37.0

Running 37.0 Firefox on Windows 7 - 64 bit. All updates updated. Flash is 17,0,0,134 and checks out at Adobe site. This afternoon YouTube videos stopped playing. In the … (閱讀更多)

Running 37.0 Firefox on Windows 7 - 64 bit. All updates updated. Flash is 17,0,0,134 and checks out at Adobe site.

This afternoon YouTube videos stopped playing. In the center of the frame are circling dots. The video appears to have loaded, as I can move the time slider and see frames at the various times, I just does not play, just gives the circling "loading" dots. YouTube runs fine in IE. In Foxfire, if I go to other sites, like news and videos/ads play just fine.

I disabled all add-ons, set Shockwave & Flash to "always activate" and still the YouTube videos will not play. Seem to download, just not play.

Thanks in advance for any help.

weejee1 於 5 年前 詢問

guigs 於 5 年前 解答

  • 已解決
  • 封存

How to get HTML5 Videos working for firefox?

So recently I built a PC. I installed firefox and cannot seem to get HTML 5 video working. I enabled webm in the config to at least get HD on youtube however without that… (閱讀更多)

So recently I built a PC. I installed firefox and cannot seem to get HTML 5 video working. I enabled webm in the config to at least get HD on youtube however without that I'd be stuck at it only loading in 360p. When I go to the HTML5 test page from youtube it has no check marks for H.264 and MSE & H.264. Not sure what the problem is. Firefox does HTML 5 fine on my old laptop. I moved my profile from my old firefox to my new firefox so that I would keep all my preferences and so on. Also I am on Widnows 8.1 N if that at all makes a difference.

CloudHD 於 5 年前 詢問

jscher2000 於 5 年前 解答

  • 封存

How to manage HTML5 in-built plugin?

I want to keep it disabled like Flash player unless I asked to "allow plugin" and second this is it buffers full length video occupying and sometimes wasting bandwidth. H… (閱讀更多)

I want to keep it disabled like Flash player unless I asked to "allow plugin" and second this is it buffers full length video occupying and sometimes wasting bandwidth. How to manage both?

ezee 於 4 年前 詢問

the-edmeister 最近回覆 於 4 年前

  • 封存

HTML5 video lags in web browser of firefox

I have an nVidia GeForce 9500 GT on a 32-bit Linux Mate 17.2 system. If I try to watch 1080p videos in a web browser, the videos are lagging, even when they're fully buff… (閱讀更多)

I have an nVidia GeForce 9500 GT on a 32-bit Linux Mate 17.2 system. If I try to watch 1080p videos in a web browser, the videos are lagging, even when they're fully buffered. If I download the video and play it outside of a browser, it works fine, and if I play it within a browser on Windows it's also fine. The graphics card driver I have on Linux is the best one, and installed correctly, If I run this Linux via Live USB and go to Youtube in Firefox, I see the videos play in Flash player and 1080p works fine. If I try to play HTML5 video in a media player, it lags. How can I fix this?

ramiav 於 4 年前 詢問

ramiav 最近回覆 於 4 年前

  • 封存

Approach for legacy site that use Flash or other legacy tech

Mozilla announced last year that it will stop support some legacy technology and as we know Firefox will block flash starting August 2016. What are some ways to deal with… (閱讀更多)

Mozilla announced last year that it will stop support some legacy technology and as we know Firefox will block flash starting August 2016.

What are some ways to deal with site that still using Flash or legacy technology, so the apps do not break. Chrome introduced Legacy Browser Support (LBS) plugin that redirected sites. Is Mozilla going to introduce any such tool or other approach, so it does not effect user experience and gives developers more time to make their apps compatible.

This is an open question, and I am looking to hear bunch of ideas as to what would happen an Enterprise network for those sites.

SAI157 於 4 年前 詢問

jscher2000 最近回覆 於 4 年前

  • 封存

Help! I'm over my honeymoon phase with HTML5 video - maybe we need plugin-container back?

After being puzzled by Firefox making it more difficult to use Adobe Flash Player and apparently being forcibly shown HTML5 I was geeking out and hoping it means Adobe Fl… (閱讀更多)

After being puzzled by Firefox making it more difficult to use Adobe Flash Player and apparently being forcibly shown HTML5 I was geeking out and hoping it means Adobe Flash Crasher is on its way into obsolescence and extinction. Although it looks ike Youtube's video quality has decreased, at least for now.

I hate Adobe Flash Player. while I'm sure its coding must be impressive IMO it is the worst video playing software ever. Slow, inconsistent, buggy, crashy, tricky. In my experience it can't do the one thing it exists to do very well: play .FLV files. The .FLV filetype is ok though and there are other programs like RealPlayer and VLC that can technically deal with it, but I guess Adobe doesn't want them meddling.

But now I'm seeing HTML5 is causing similar problems. After each time I rerun Firefox after an APPCRASH (they happen so regularly and predictably) I know it's just a matter of time until the next one. And the cause is almost always YouTube, running FireFox's memory up even when I don't have many tabs open. Then I start getting blotches of the black screen of death and I know that session is now in its death throes. Memory Fox and clearing cache may buy me another 45 minutes, tops.

Is there some way I can have my streamed media confined like we use to have it when FireFox was good and only the video would crash but not the whole application? I'm actually missing that now.

YoullSee 於 5 年前 詢問

guigs 最近回覆 於 5 年前

  • 已解決
  • 封存

YouTube videos are black when using HTML5 player.

Today when I started up my laptop, Firefox wouldn't play any YouTube video - the audio still works and the preview of the frame when seeking is there, but instead of vide… (閱讀更多)

Today when I started up my laptop, Firefox wouldn't play any YouTube video - the audio still works and the preview of the frame when seeking is there, but instead of video there is just a black screen. I have NO intention of installing Flash Player. Please help? Thanks in advance.

username9001 於 5 年前 詢問

guigs 於 5 年前 解答

  • 封存

I use GNU/Linux, and Adobe has crippled flash for Linux, so sometimes flash won't work; What is the best plugin to make use of html5?

I have tried Flash Control, HTML5 Everywhere, Flash Block, Shumway and so far none are doing what I want or are very intuitive. I am grateful that Mozilla is developing h… (閱讀更多)

I have tried Flash Control, HTML5 Everywhere, Flash Block, Shumway and so far none are doing what I want or are very intuitive. I am grateful that Mozilla is developing html5 to replace unsafe flash. Adobe appears to be working with Microsoft and Google to force older computers into the trash pile that do not have sse2 instruction, force issues onto GNU/Linux users by not fully supporting flash, and also making Firefox appear to have "performance issues" to coerce people into using less secure browsers like Chrome or IE.

Is there a simple and obvious way to choose to use my older version of flash or HTML5, depending on the web site? What plugin is best?

LongTimeMozillaUser 於 4 年前 詢問

FredMcD 最近回覆 於 4 年前

  • 封存

Firefox crashes/freezes computer with Youtube, hardware-video-decoding.failed setting ineffective

Ever since the HTML5 player has taken over Youtube, I've had problems with it perma-freezing my computer as soon as any window was opened. Until recently I got around tha… (閱讀更多)

Ever since the HTML5 player has taken over Youtube, I've had problems with it perma-freezing my computer as soon as any window was opened. Until recently I got around that by setting media.windows-media-foundation.enabled to false, forcing Youtube to use the Flash player. Lately, though, it's somehow gone back to the HTML5 player with 360p resolution only, so I went digging through the config file again in search of solutions. That's when I found two settings I hadn't noticed before, media.hardware-video-decoding.enabled (which I found true) and media.hardware-video-decoding.failed (which I also found true, though I hadn't touched it before). Re-enabling windows-media-foundation caused the hard-freezes to reoccur, but I discovered that by setting media.hardware-video-decoding.enabled to false I was able to leave the windows-media-foundation option true, and I can now use Youtube's HTML5 player in all resolutions. I conclude from this that the media.hardware-video-decoding.failed setting is bugged somehow, since it didn't seem to prevent the freezes.

y3kcjd5 於 4 年前 詢問

jscher2000 最近回覆 於 4 年前