I am using react-native-video to stream video in my app. The video starts with paused state.
From onLoadStart and onLoad event i see the video is started to load automatically even though it is paused. These videos are fetched from an URL, not in the assets of the app.
When i have multiple files in one screen it will take too much space in mobile. I want to keep space taken to minimal.
So i want to load files only if it is played by user by clicking the play button.
Is there a way to specify not to autoload files?
I have a webform with and want to open it on smartphone - than take pictures of some documents which need to be merged in one PDF, and on the end this file need to be uploaded to server.
My solution is to use Google Drive to upload PDF (scan) to GDrive and then somehow download this file from gdrive to server via some sort of widget (any links appreciate) installed on website.
Maybe someone have a better idea?
I know its late but my answer might help others. I also face the same challenge and implemented a custom solution based on Javascript and Since you are using web form so this solution will perfectly fits on your need.
You have to use JSPdf javascript library, JSPdf provide you pdf object in your browser and you can upload it download it and there are many other thing to play with.
First you have to initialize JSPdf object as per your requirement. I am creating PDF with page size width:500px and height 500px.
pdf = new jsPDF("l", "pt", [500,500]);
Simply when you will take picture from camera you will have each picture in form of base64, that base64 format you have to insert in JSPdf object
pdf.addImage(imgData, 'JPEG', 0, 0);
you can repeat the above code to add pictures from camera as much as you want, at the back-end these images are compiling and creating pdf document where each page have each images in sequence.
Once you are done, you can get PDF object in form of base64 object using below code that you can upload to any server.
pdf.output('datauristring')
above is only pdf part, you can find complete working example including camera part here Javascript Component to Scan Document
I want to use VideoJS in my project, and I also need closed-caption support. I have read the VideoJS docs on how to use a text-track from a WebVTT file, but most of my .mp4 files have captions embedded in the file itself, there is no WebVTT file available. How can I get the captions out of the mp4 using VideoJS?
Edit: We will be live-streaming video, which is why the closed-captions are embedded into a stream.
To do the extraction step, you don't/can't use VideoJS itself. Instead, there are various standalone video editors that can do the job...just do a google-search like 'video tools to extract sub-titles'. Preferably, find/use a tool that extracts subtitles/captions into an "SRT" file-type. Then, to convert into VTT files, there are various tools for that, too. [ For that step,I use the free SRT->VTT converter avail at: http://atelier.u-sub.net/srt2vtt ]
So I have a youtube page open where I can watch a video.
But this video was taken down by the user. My open page still has the video, if you go to it again (refresh) the new page does not.
Since I have the video loaded in my browser tab (chrome), how can I go about finding the actual file and saving it?
In the old days of YouTube, it may have been possible to find the single video file on your harddrive and save it, but this is no longer the case. As explained in this Computerphile video, all YouTube videos are now split into tiny pieces and downloaded piece by piece.
You can observe this for yourself if you open up Chrome (or Firefox's) Dev Tools and watch the nnetwork tab. You'll see:
all of the pieces of the video loading bit by bit.
One additional thing you'll learn from the Network tab is that the videos are downloaded as octet streams, so you won't be able to find the links to the pieces hidden in the DOM.
One thing you migth try is, in the Network tab, clear the results and then move the cursor to the beginning of the video. You should see the streams come up again. Right click on the path name and then do a "save as", and save it as 0000.mp4 (or whatever), for all the pieces. You should be able to reassemble these pieces in any video editing software. I tested this by getting two pieces from a random YouTube video.
I couldn't find anything that doesn't require a restart (and hence reload) of Chrome.
One (kludgy) hack if possible, though, would be to run a screen video capture and play the video.
I have done this long back using IE6, i.e. fetch the file from the temporary files location and rename it to the extension flv.
The following links should point you in the right direction, but can't say it will work for sure, as I believe recent chrome versions seem to have a defensive cache implementation.
Ubuntu Forum solutions
You might need to tweak the above for your use.
Run a screen recording/capture program such as:
Screenr
CamStudio
Then edit out the youtube bar if its visible.
The buffered video is cached at the following location:
C:\Users\<user name>\AppData\Local\Temp\flaxxxx.tmp
Note you have to change to whatever user you are using, and xxxx is a random number. Also, the .tmp file might be hidden, so make sure your windows explorer is displaying the hidden files.
While the tab is open, you won't be able to copy the file, but if you close it, the file will be automatically deleted. For doing so, download HoboCopy, extract it and after that, run cmd as administrator. Change the directory on the console to the directory where you have extracted HoboCopy and type the following command:
hobocopy C:\users\<user name>\Appdata\Local\Temp C:\videos fla1234.tmp
<user name> - replace with your windows username
C:\videos - the directory where you want the video to be copied to
fla1234.tmp - the name of the file to be copied.
Wait for the copy to be done and then you can rename the destination file, changing '.tmp' to '.flv'. This file can be played with any FLV supporting media player.
i find this software to get the video from temp files folder and play it http://www.nirsoft.net/utils/video_cache_view.html
Video file is cached, therefore suggested ways can help you to save the file. But if you deal with same problems I offer using IDM(Internet Download Manager). After installation of this application for every online video stream (e.g. all flv files in youtube) IDM brings a small picture that you can click on it and downloading will be started automatically without need of any configuration.
You have to install a browser extension to download YouTube videos. You won't find a simple URL for an mp4 file in the HTML source. Try googling "youtube downloader" + your browser name.
As far as I recall, YouTube videos are not served as a continuous HTTP resource, but instead divided into small chunks and assembled client-side by the Flash player. This is why you can jump into the middle of a video, without having to buffer the first half of the video.
Generally speaking, YouTube don't want you to rip their content, so they aren't exactly making it easy for downloaders.
is it possible to play a m3u8 file using video.js on any devices?
So far, I am only able to play them on Android or IOS. Want to play them on PC as well.
This is what I am using but no luck.
Thanks for your help
<source src="http://www.domaine-name.com/name/playlist.m3u8" type='video/mp4'>
From Wikipedia:
An M3U file is a plain text file that specifies the locations of one
or more media files. The file is saved with the "M3U" or "m3u"
filename extension. Each entry carries one specification. The
specification can be any one of the following:
an absolute local pathname; e.g., C:\My Music\Heavysets.mp3
a local pathname relative to the M3U file location; e.g. Heavysets.mp3
a URL.
As M3U only stores the multimedia items locations, you should parse it and play them using the proper audio/video playback lib.
Take a look at this question
EDIT: The link in the comment points to another m3u, you just should get the link to the multimedia files:
Content of first m3u:
#EXTM3U
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=613798
http://tveurope1.zion3media.com:1935/demoweb1/mystream/playlist.m3u8?wowzasessionid=506379083
When you follow that link you will get a playlist like this:
#EXTM3U
#EXT-X-ALLOW-CACHE:NO
#EXT-X-TARGETDURATION:10
#EXT-X-MEDIA-SEQUENCE:1343
#EXTINF:11,
media_1343.ts?wowzasessionid=506379083
#EXTINF:12,
media_1344.ts?wowzasessionid=506379083
#EXTINF:9,
media_1345.ts?wowzasessionid=506379083
Example of multimedia resource from playlist:
http://tveurope1.zion3media.com:1935/demoweb1/mystream/media_1343.ts?wowzasessionid=506379083