I want to know the version of a mp3 file format.
What should I do?
I am reading file properties with java programs
The website wotsit.org has specifications and descriptions of file formats. Wikipedia is also often a good starting point. Read MP3 on Wikipedia.
If your goal is just to read the metadata from MP3 files (track title, artist name, etc.): That information is stored in ID3 tags inside the file. There are several Java libraries available for reading ID3 tags. Google for "java id3" and you'll find them.
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I have some .ogg sound files that must be merged together.But the problem is in that the java only support .wav extension (as I used AudioSystem and AudioInputStream).
I've searched among different pages for converting and I've not found a better way than.
Do you know a better way other than using Command line tool?
I think you may have to inspect and tinker with the source code. This can be obtained from various libraries that have JOrbis and other files needed for ogg playback and encoding (there are several on github).
For a project where I needed to load decompressed ogg files (that were originally wav) into memory, I used source code from the example OggPlayer (usually included in the package) and intercepted the bytes before they were written to a SourceDataLine. You can maybe also find a hook in example code that compresses wav to ogg and then link the two parts.
I have a complicated requirement. We have a big .iso file being present on a remote server. The file contains a small .txt file which is containing important information about the iso (version).
I need to check this file before(!) downloading the complete iso file. This needs to be done within Java.
For ZIP files I found a solution here (How to extract a single file from a remote archive file?), but I am not pretty sure, if this is also not downloading the whole file.
I had a look for the loopy (http://loopy.sourceforge.net/) library, but seems that they only work with "File" objects, which needs the file to be on local drive.
ISO is 9660 format.
What would also be possible is reading the "Lable" of the ISO within Java, because it also contains that version information.
Does anybody has a suggestion? :)
Thanks in advice
Where does the music files, that is played in Minecraft, get stored in the latest minecraft.jar?
Just extracting the jar-file as a zip-file, doesn't reveal any audio files, only .class, .png, .txt, .lang and one .bin file for the font glyphs.
How does Minecraft encrypt the audio files?
The audio files come from here, which is just an XML file. They're not encrypted, and the client downloads them as it needs them. Don't do anything naughty, and read through the Minecraft brand guidelines, which covers third party usage of these resources.
i want to make an app which can add the file properties of a song file that the user inputs. Like adding the Album name of the song.. i am still a newbie in android app development...
Thank you.
I assume you're looking to edit the ID3 tags of an MP3 file (other formats, including MP4, usually have a different system for metadata).
Basically, you're going to want to:
Open the MP3 file
Read in the existing ID3 tags from the MP3 file
Populate text views with the data
When the user saves, write the new ID3 tags to the MP3 file.
It looks like there's a fairly old library for dealing with id3 tags in Java, so you might even save yourself a lot of effort going that route.
I have followed the sample code below to upload a zip file in the blobstore. I am able to upload the zip file in but i have some concerns reading the file.
Sample Code http://code.google.com/appengine/docs/python/blobstore/overview.html#Complete_Sample_App
My zip file has 6 CSV files where my system will read the files and import the values in the datastore. However i am aware that there are some restrictions to read the file which must be less than 1MB.
Can anyone suggest how i can go about reading the zip file and process the CSV file? What will happen if my data saved in the blobstore is more than 1MB?
Hope to hear from you. Advance thank.
Individual API calls to the blobstore API must be less than 1MB, but you can read as much data as you want with multiple calls. See this blog post for an example of using BlobReader to read the contents of a zip file from the blobstore; it's written using Python, but BlobReader is available in the Java SDK too, and the same technique applies.