CannotReadException: Unable to determine start of audio in file

[Theo Klink]

I have just implemented jaudiotagger and editong mp3 files works fine. However I am stuck at the opening of an m4a file. I have tried many different m4a files but the error occurs for all. Looking at the output, it clearly reads the file. How can I progress?

  public String getmp4AlbumTag(File SourceFile)
        throws Exception {
    String album = null;
    try {
        AudioFile musicFile =  AudioFileIO.read(SourceFile);
        if (musicFile != null ) {
            Mp4Tag tag = (Mp4Tag)musicFile.getTag();
            if(tag!=null) {
                album = tag.getFirst(Mp4FieldKey.ALBUM);
            }
        }
    } catch (CannotReadException | IOException | TagException
            | ReadOnlyFileException | InvalidAudioFrameException e5) {
        throw e5;
    }
    return album;
   }

Stacktrace:

11-22 10:04:03.366 2165-2165/com.flyingdutchman.newplaylistmanager I/org.jaudiotagger.audio: Reading file:path/storage/sdcard/Music/Top20/01. Omi - Cheerleader (Felix Jaehn Remix Radio Edit).m4a:abs:/storage/sdcard/Music/Top20/01. Omi - Cheerleader (Felix Jaehn Remix Radio Edit).m4a
11-22 10:04:03.366 2165-2165/com.flyingdutchman.newplaylistmanager I/generic: File /storage/sdcard/Music/Top20/01. Omi - Cheerleader (Felix Jaehn Remix Radio Edit).m4a being read
11-22 10:04:03.366 2165-2165/com.flyingdutchman.newplaylistmanager I/atom: Encoding infos content:
                                                                            SAMPLING : 44100
                                                                            PROFILE : LOW_COMPLEXITY
                                                                            CHANNB : 2
                                                                            VBR : true
                                                                            INFOS : 
                                                                            BITRATE : 256
                                                                            KIND : MPEG4_AUDIO
                                                                            BRAND : M4A 
                                                                            LENGTH : 180.0
                                                                            TYPE : AAC
11-22 10:04:03.366 2165-2165/com.flyingdutchman.newplaylistmanager W/System.err: org.jaudiotagger.audio.exceptions.CannotReadException: Unable to determine start of audio in file
11-22 10:04:03.366 2165-2165/com.flyingdutchman.newplaylistmanager W/System.err:     at org.jaudiotagger.audio.mp4.Mp4AtomTree.buildTree(Mp4AtomTree.java:191)

[IJabz]

Could you email [e-mail] a problem file please

[IJabz]

Are you using the latest code in source control ?

[Theo Klink]

In Gradle I have added:

// https://mvnrepository.com/artifact/org/jaudiotagger

compile group: 'org', name: 'jaudiotagger', version: '2.0.3'

regards, Theo Klink. http://www.theo.klinkweb.nl

[Theo Klink]

Do you mean the Stacktrace and code or something specific?

regards, Theo Klink. http://www.theo.klinkweb.nl

[IJabz]

I meant an audio file, but if you are using 2.0.3 that is extremely old, you need to use the latest code base, and then I expect it will work

[Theo Klink]

Thanks, I will get the latest version first before I send any files.

regards, Theo Klink. http://www.theo.klinkweb.nl

[Theo Klink]

I am having all sorts of trouble with jaudiotagger-2.2.6-SNAPSHOT.jar but jaudiotagger-2.2.4-SNAPSHOT.jar seems to behave.

jaudiotagger-2.2.6-SNAPSHOT.jar fails when trying to read the file. It gets to

 private void prepareReadersAndWriters() 

where is crashes on

this.writers.put(SupportedFileFormat.FLAC.getFilesuffix(), new FlacFileWriter()); 

with the following:

this=com.android.internal.os.ZygoteInit$MethodAndArgsCaller
ex=java.lang.reflect.InvocationTargetException
cause=java.lang.VerifyError: org/jaudiotagger/audio/flac/FlacTagWriter

[IJabz]

The latest codebase doesnt work with Android (see the issue list) , but Ill close this issue now it is resolved

[IJabz]

Fixed by updating to a later version