Ticket #12436: BMediaTrack-weirdness.cpp

// gcc -g BMediaTrack-weirdness.cpp -lbe -lmedia -lroot_debug
// LD_PRELOAD=libroot_debug.so ./BMediaTrack-weirdness

#include <stdio.h>
#include <string.h>
#include <media/MediaFile.h>
#include <media/MediaTrack.h>
#include <storage/Entry.h>
//#include <malloc_debug.h>



int main()
{
    entry_ref ref;
#error replace this with a path of your own before compiling
    get_ref_for_path( "/boot/home/Desktop/Savatage-Hall_of_the_Mountain_King-Remastered-2011-GRAVEWISH/04-savatage-strange_wings.mp3", &ref );
    
    BMediaFile file( &ref );
    BMediaTrack * track = file.TrackAt( 0 );
    media_format format;
    memset( &format, 0, sizeof(format) );
    track->DecodedFormat( &format );
    
//adapt this to your file's heading silence's duration
    int count = 22;
    
    for( int j = 0; j < count*2; j++ )
    {
        if( j == count )
        {
            bigtime_t time = 0;
            status_t s = track->SeekToTime( &time );
            printf("\n\n=============================== calling SeekToTime(0) (status 0x%x) =============\n\n", s);
        }
        
        printf( "\nFrames for CurrentTime %Ld:\n", track->CurrentTime() );
        
        char buffer[ format.u.raw_audio.buffer_size ];
        memset( buffer, '\0', sizeof(buffer) );
        int64 frames = 0;
        track->ReadFrames( buffer, &frames );
        
        for( int i = 0; i < 128; i++ )
        {
            if(i%8==0) printf(" ");
            if(i%32==0) printf("\n");
            
            printf("%2.2x", (unsigned char)buffer[i]);
        }
        printf("\n(...)\n");
    }
}