how to get multiple thumbnail from video in android? - android

I have some videos in my sd card and I want to retrieve multiple thumbnail from any video. I used code from Android: Is it possible to display video thumbnails?
but this returns only one thumbnail, is there any way to retrieve more than one screenshots from a vides, is so then please suggest me, Thanks in advance.

You could generate multiple thumbnails using ffmpeg
http://blog.prashanthellina.com/2008/03/29/creating-video-thumbnails-using-ffmpeg/
basically you can add ffmpeg lib to your app and then let the lib generate the thumbnail for you.

Related

Where should I put mp4 file during development?

I'm not good at English, so I'm sorry if there are any mistakes in the expression.
I want to Object detection application on Android.
Here is how the app works:
Take some videos for which you want to perform object detection
Select a video from the taken videos
Detect specify object and get that coodinates
To develop avobe app,I have some videos for vertification.
Here is my question. Which folder should I put the vertification videos?
For now, I put the videos in raw folder.
But,I am creating an app assuming that the videos were taken with a camera. If so, should it be in the same place as if it were taken by the camera? and, which folder should the videos be placed in?
I'm new to android development.
Could anyone give me some advice? Thank you.
As you are new to Android development I am going to explain in detail.
First you have the videos for verification. You should put those videos in raw folder. But what if the size of those videos is too large? That means the size of your APK will also increase which is not a good thing if you want to upload your app on google play store. In this case, you can store those videos on your own server, and when user installs your app download those videos from the server.
Now let's come to the second question: Where should I put the videos taken with the camera?
You can put these videos in any of the following paths.
context.getFilesDir();
or
context.getExternalFilesDir(null);
These paths are on which you can store the camera-shooted videos and do any processing on them. If you want to know the difference between these two paths that's another topic. You can learn about them here.

Error : Android BOX integration

I am developing an android app with box api integration. In which I have to fetch videos from logged in users' uploaded videos. I also need to show video thumbnails. I found something from below link.
Link:=> https://box-content.readme.io/reference#get-a-thumbnail-for-a-file
But in response I got the contents of image. i don't know how to fetch that type of response.
Can anyone help me please to come out of this???
Thanks in advance.
The Get Thumbnail API can generate either a png or jpg thumbnail file from a video. But it cannot generate a video thumbnail (such as a mp4 or gif file) from a video.

How to get video thumbnail (frame) from live video url

I have video uploaded on server. which is trailer of movie. I can play this video direct to my videoView with the help of live url. My question: is there any method in android which help me out to get a video frame from url without download the video to local storage. I know one method name "createvideothumbnail" but it will not work in my case. because i need to get the video thumbnail without download the whole video. as you have seen the mechanism is implemented in imdb official app (Trailer section).
Please help, thanks in advance
Getting thumbnails without download the complete video is not possible until now (API Level 22) i´m pretty sure that the application that you describe load thumbnails that were created previously.
the current option would be using the class:
import android.provider.MediaStore.Video.Thumbnails;
or create the thumbnails in a separated process.

android- Converting pdf into images

I'm developing an Android application which involves reading pdf files.
Initially on syncing with the server a set of pdf files will be saved into the device's SD card.
Now, I have a requirement to convert this pdf file into images. Because on doing that the speed of loading the pages are faster..
can anyone help me with this and if possible give me links to some sample code..
I got this idea from here https://stackoverflow.com/a/4779852/1105585 ....
but i don't know how this works... help plz..
I'm currently working on an app that loads files and adds effects to the images. One of the formats suppose to support is PDF. I used leadtools libs for the rasterrizing pdfs (converting pdf into raster images) and some image effects.
Hope this helps.
PDF isn't made up of images, they're vectors,.
couple open-source java PDF to Image converters
http://www.jpedal.org/
http://code.google.com/p/pdfonejava/
On desktop I've used iText java library for that kind of task. Not sure if its Android compatible but worth of giving a shot as its easy to implement.

How to get the First frame from Video file?

I have some video files.I need to show every video file as a ImageView .On that Image view i need to set first frame of the video as a image.How to do this?
Hi check wordpress App they are taking thumbnail from Video
Here is the link for source code of Wordpress App
Thank you.

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