I've used this code
<iframe width="640" height="480" src="http://www.youtube.com/embed/....?rel=0" frameborder="0" allowfullscreen></iframe>
to embed a youtube video.
I would like to automatically set the quality to the max available (which in my case is apparently 480); what happens is:
1) Firefox 12.0: the starting quality is never 480, sometime 360 sometime 240 (yes it changes from time to time)
2) Safari 5.1.4: there is just one option, 360. Why?
I read Youtube - How to force 480p video quality in embed link / <iframe> but even if I increase the frame size nothing changes. The javascript method also seems to be not reliable.
Thanks.
Try adding “&ap=%2526fmt%3D18″ and “&ap=%2526fmt%3D22″ to the embed url. I believe D22 is 1280 and D18 is 460?
The syntax is apparently not the same for embedded as it is for the browser's regular url (which is what is given in the answer in your link)
EDIT:
Found the codec information; put the FMT value after the D (ex D18 D22)
http://en.wikipedia.org/wiki/YouTube#Quality_and_codecs
Related
Referencing this article: https://cloudinary.com/blog/evolution_of_img_gif_without_the_gif
What is the compatibility situation with videos in img in 2020? I don't know what the name of the feature is called to look for in caniuse.
Now you can <img src=".mp4">s in Safari Technology Preview
Early results show mp4s in tags display 20x faster and decode 7x faster than the GIF equivalent - in addition
to being 1/14th the file size!
Now we wait for the other browsers to catch-up
By today (Oct 2022), we still can only use <img src=".mp4"> on Safari.
If you want to make MP4 files work like GIFs on other browsers, you might wanna use <video autoplay muted loop>.
I am trying to use videogular2 and I have simply replaced the static video content link with a shareable link from Google drive that points to an MP4 video file.
<vg-player>
<video [vgMedia]="media" #media id="singleVideo" preload="auto" controls>
<source src="https://drive.google.com/open?id=xyz" type="video/mp4">
</video>
</vg-player>
Under Chrome browser the video player shows a resistance icon at the center and cannot play anything as it can be seen at the following screenshot:
Under Internet Explorer the video player shows the text "Invalid source" and the play button on the left as it can be seen on the next image:
But if I use the sample URL: http://static.videogular.com/assets/videos/videogular.mp4
it works very well.
I would appreciate any ideas/pointers related to what I am doing wrong.
I had the same problem and solve it using an address like the following:
https://drive.google.com/uc?id=ID_OF_YOUR_VIDEO&export=download&authuser=0
thank you for reminding me this. I found the answer long time a go but I haven't updated SO. I will accept your answer of course.
In order to view a Google video from my application (not necessarily using the Videogular plugin) I used an iframe:
<iframe src="https://drive.google.com/file/d/ *** VIDEO ID *** /preview?pli=1" frameborder="0" target="_parent">
</iframe>
If you want to start the video from a specific time and not from start add this parameter at the video url:
&t=10
where 10 is the start time in seconds. In this case the video will start playing from the 10th second.
I'm currently rendering a list of HTML5 video elements.
I have multiple video files on a single page, i do not want to download a lot of data until the user clicks play.
I would like to grab frame 1 and show it as the poster. I dont have access to an alternative posters for each video.
I'm looking at the preload attribute with a value of 'metadata' for the video element here:
http://www.w3schools.com/tags/att_video_preload.asp
This looks to have limited browser support.
Using preload='metadata' works in firefox and chrome and show frame 1 as a poster.
Using preload='metadata' disables preloading in safari, but disabled the poster.
I have been unable to test in IE.
How do i show the HTML5 video elements frame 1 as a poster, in safari, without preloading a large chunk of data.
<video controls preload='metadata'>
<source src="{{video.url | trusted}}" type="video/mp4">
Your browser does not support the video tag.
</video>
Version v42 and above now seem to respect this. Yay!
(current beta version as of yesterday - so not yet available)
You can see now a 206 partial content request, and 66kb downloaded (my video is 600kb+)
However: VERY IMPORTANT
In case you didn't know, Chrome can only have 6 simultaneous connections at the same time to the same server.
Currently in v42 + v43 they have a terrible bug which means that once the metadata is loaded that file is not released back into the 'pool' for available connections. So if you load 6 or more videos the 7th blocks and won't download.
I've reported this as a bug https://code.google.com/p/chromium/issues/detail?id=468930
This may not be the case for all videos, but I have 10 short MP4 videos encoded with Adobe Media Encoder and they get stuck.
If in doubt, or experiencing this problem you've got no choice but to set preload='auto' for now. Hopefully this bug will never make it into the wild.
I have a problem on a website.
When I reach this url http://www.diamir.com/en/product/diamir-vipec-12/, on page load, videos are not loading correctly. When I click on the play button, video remain black and only after a while become clear. It's really a strange behavior. I don't know if it is an issue with the codec or something else.
The website is optimized using PageSpeed Service from Google.
Codec: AVC (Baseline#L1.3)
Here is the HTML source:
<video controls class="img-responsive">
<source src="http://a3.diamir.com/wp-content/uploads/2013/11/02-FrontalSafetyRelease-SMALL-H.264_x264.mp4" type="video/mp4">
<source src="http://a1.diamir.com/wp-content/uploads/2013/11/02-FrontalSafetyRelease-SMALL-H.264_VP8.webm" type="video/webm">
</video>
Someone has had the same issue?
There are a couple of things you need to fix/take into account:
your videos play well in Chrome but IE displays an error message and firefox just won't read them.
your mp4 has the MOOV box after the MDAT box which means your mp4s are not prepared for web delivery. This issue is described here
Suggestions to fix it:
use Handbrake, ffmpeg or MP4Box to prepare your MP4 files for web delivery (aka faststart)
use the preload attritube set to "auto" in your HTML5 video tag for faster playback on click after page load (if you do that do not load too many videos on the same page or your end user will suffer network congestion)
set width an height for your HTML5 video tag otherwise it will scale to the resolution of the video file. You may want to keep control on that especially for responsive design.
Your videos have no audio track. That should not be a problem for HTML5 video playback but keep that mind if needs be. I have seen cases where you need to add a silent audio track to make it work on all devices (especially for exotic fallback from HTML5 video).
You can read there for more infos on HTML5 video. I suggest you double check the section called "MIME Types Rear Their Ugly Head" as well.
There seems to be a huge issue with the iframe url parameter "vq" (in this case "vq=hd720").
If you use this paraneter, the video screen in the flash player turns black.
This example URL worked until today:
http://www.youtube.com/embed/dFVDJlM6zLY?vq=hd720
(feel free to replace the example YouTube ID)
Now, this example works only without the "vq" parameter (vq=hd720):
http://www.youtube.com/embed/dFVDJlM6zLY
The problem is, that we delivered this YouTube iframe in a lot of websites for a lot of clients and it worked quite well for month (years?). Now every single site has black youtube videos!!!
Does anyone know if this parameter was depricated?
Was there a new YouTube API release today?
The parameter was already discussed and recommended in diffrent forums:
e.g. Force youtube embed to start in 720p
Any ideas how to force Google (YouTube) to solve this problem?
It seems that the only way out of this (currently) is to remove the vq parameter or set it to auto. This seems like a widespread problem though, that has occurred very recently. You may wish to star this issue at google make them take notice:
https://code.google.com/p/gdata-issues/issues/detail?id=6009
I was having a similar issue but when I tried to force an embeded youtube video to play in HD at a dimension smaller than the HD resolution.
I was able to get around the "black screen" HD issue by using the old embed code.
If you set the video size to the highest resolution you can then use vq=hd720 parameter and set the video width and height to a lower resolution
<object width="1280" height="720"><param name="movie" value="//www.youtube.com/v/VIDEO_ID?hl=en_US&version=3&rel=0&vq=hd720"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="//www.youtube.com/v/kyilUYoxcww?hl=en_US&version=3&rel=0" type="application/x-shockwave-flash" width="560" height="315" allowscriptaccess="always" allowfullscreen="true"></embed></object>
Hope this helps!
Just had this exact problem. Found changing it to vq=auto works in the code. But on the videos we're working with it's coming out at a slightly lower quality than we'd like.
Nevertheless, this at least removes the blackout.
What are your 3d settings set to? Here's what I've noticed...
1) Taking away the vq=hd setting works.
2) Turning the 3D setting on the video player ON (or sometimes OFF the ON again) makes the
video work.
3) Curious about number 2, I went to the video settings on the video (the admin settings) and changed the 3D settings under Advanced. I changed it from "Disable 3D for this video" to "Please make this video 3D." For some reason this works -- the vq code is back to working the way it should.
HOWEVER I don't know if I would recommend doing this! The reason I set all my videos to "Disable 3D for this video" in the first place was because if I left on on the on the default "No Preference," it often caused glitches in the video.
Has YouTube changed anything with the 3D settings recently? I think thay may have but am not certain.