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I wonder if there is a JAVA SDK that I can use for converting avi, video format, to mp3. I am trying to build an app in Android or BlackBerry OS 5 - 7.1 that can convert video to mp3. Thank you.
An avi is a container format not a video format. It can hold a number of different video and audio formats.
The best bet would be to extract the audio stream and convert that to MP3.
See this question for more details on dealing with these in java:
Dealing with video (DVDs, .avi .mkv) in Java
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Shai Almog
You have made facebook clone and whatsapp clone.So you can easily help me.Can you please give me the source code for that or i have made a similar app in android studio and can I convert it to Codename one
The full source code for these applications is available as part of this course https://codenameone.teachable.com/p/build-real-world-full-stack-mobile-apps-in-java
Pulling out a snippet for something like this is nearly impossible as the apps are large and intertwined. There are samples for file upload in the javadocs and a sample image gallery in the kitchen sink demo.
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I would like to know if there are any open source libraries to convert a set of images to video (not .MP4),other than ffmpeg. I need to use this library in my android app hence being compatible for this environment as well.
Any suggestions in this regard will be appreciated
You can try JCodec. It's an open source pure java implementation of video and audio codecs and formats.
Or Xuggler API can also be used but since you're looking for something other than ffmpeg, this might not be your cup of tea as Xuggler extensively incorporates FFMPEG in its functionality.
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I have a string of binary. I need to convert this to a wav file. Is there any existing library to achieve that goal? If so how would I write the bytes to an audio file in preferably Java or Python, but any language works.
See the documentation for Wave_write Objects included with Python's standard library. You will need to open a WAV file first in 'wb' (write only) mode, and then use the appropriate methods:
Wave_write.close()
Wave_write.setnchannels(n)
Wave_write.setsampwidth(n)
Wave_write.setframerate(n)
Wave_write.setnframes(n)
Wave_write.setcomptype(type, name)
Wave_write.setparams(tuple)
Wave_write.tell()
Wave_write.writeframesraw(data)
Wave_write.writeframes(data)
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I am looking desperately for a Java library that would be able to generate thumbnails for a large number of file types. Like Office Suite documents, Open Office Documents, PDF, Images etc... The thumbnails has to be readable.
From my understanding .net has hooks to call windows for doing exactly this but the code has to be platform independent (hence java)
I have found some libraries for image thumbnail generation some for word document but nothing that seems very good.
I am looking a one does it all library for generating the thumbnails does it exist?
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I need a library to use to export some music info that I have in c++ to a midi file (needs to work in Android ndk).
I am afraid tse3 is to big for the Android platform and I would prefer a smaller library, but I do not know one. Is there a way for me to export a midi file from c++ through ndk Android?
Here's a lightweight Java MIDI library compatible with Android if you want. It's not NDK like you want, but you can pretty easily build a MIDI file from whatever data you have.
http://code.google.com/p/android-midi-lib/