Archive for March 21st, 2006

WAV to MP4 -2009 Code

Tuesday, March 21st, 2006

I tried your suggestion. The call to FindNextComponent() with the modification to the component description that you suggested is still succeeding. However, still getting the -2009 code.

 

Tom Hesley

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WAV to MP4 Export Problems

Tuesday, March 21st, 2006

Friends,

I’m getting an invalid track code (-2009) when exporting WAVE audio to MP4. Can anyone offer a solution?

Points to consider are:

  • I’m running QuickTime Pro 7.0.3.
  • Using the QT7 SDK and linking with the qtmlClient.lib library.
  • Developing with MS Visual C++ 2003 .NET on a Windows XP Pro P4 machine.
  • I’ve successfully played ‘movie’ once it’s imported, just prior to exportation to MP4.
  • Notice that I’m asking that the user input dialog be displayed which prompts for compression and file types, kbps values, and such. Even with that user input, the function in red below gives the -2009 error.
  • My WAVE files are stereo with 16-bit single-channel sample sizes, and were sampled at 44.1 Khz.

Here’s my code…

// Initialize the QuickTime environment.
InitializeQTML(0L); // Initialize QTML
EnterMovies(); // Initialize QuickTime

// Format the input WAVE file name.
FSSpec inFileRec, outFileRec;
NativePathNameToFSSpec(
“G:\\Music\\WAV Unnormalized\\Sex Bomb (Peppermint Disco Mix) – Tom Jones & Mousse T..wav”,
&inFileRec,
0L);

// Format the output file name.
NativePathNameToFSSpec(
“G:\\Music\\Mp4\\Sex Bomb (Peppermint Disco Mix) – Tom Jones & Mousse T..mp4″,
&outFileRec,
0L);

// Open the input WAVE file for reading.
short inFileRefNum;
OSErr nErr = OpenMovieFile(&inFileRec, &inFileRefNum, fsRdPerm);

// Create a QuickTime movie (in memory) from the WAV file.
Movie movie = NULL;
short inResId = 0;
Str255 strName;
Boolean bWasChanged;
nErr = NewMovieFromFile( &movie,
inFileRefNum,
&inResId,
NULL,
newMovieActive,
&bWasChanged);

long trackCount = GetMovieTrackCount(movie);
// This call ^^^ returns a track count of 1, which is seems reasonable. My WAV files are stereo
// however, so should this count perhaps be 2 ?

// At any rate, things appear to be working correctly so far…

// Get the MP4 component for the exportation, so I can set certain export parameters…
Component c = 0;
ComponentInstance theExporter = NULL;
ComponentDescription cd =
{
kAnyComponentType,
kQTFileTypeMP4,
kAppleManufacturer,
0,
0};

OSErr err = invalidComponentID;
c = FindNextComponent(0, &cd);
if (c == 0)
{
MessageBox(hWnd, “Could not find component.”, “Error”, MB_OK);
}

err = OpenAComponent(c, &theExporter);
if (err || theExporter == 0)
{
MessageBox(hWnd, “Could not open the MP4 exporter.”, “Error”, MB_OK);
};

// find the first sound track in the specified movie
Track myTrack = GetMovieIndTrackType(movie, 1, AudioMediaCharacteristic, movieTrackCharacteristic | movieTrackEnabledOnly);
if (myTrack == NULL)
{
MessageBox(hWnd, “Could not get audio track.”, “Error”, MB_OK);
}

// I called the GetMovieIndTrackType() function just to verify that the track information could be
// retrieved.

// So far, so good. All functions to this point succeed.
// Now, export the audio-only movie to MP4…
err = ConvertMovieToFile(movie,
NULL,
&outFileRec,
kQTFileTypeMP4,
FOUR_CHAR_CODE(‘TVOD’),
smSystemScript,
NULL,
showUserSettingsDialog | movieToFileOnlyExport |movieFileSpecValid, theExporter);

// This ConvertMovieToFile() call ^^^^ is returning the -2009 error and I just don’t understand why.

// Close the movie.
CloseComponent(theExporter);
CloseMovieFile(inFileRefNum);
DisposeMovie(movie);

// Properly clean up and stop the QuickTime functionality.
ExitMovies(); // Terminate QuickTime
TerminateQTML(); // Terminate QTML

 

Thanks in advance,
Tom Hesley

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