ComponentResult initVorbisComponent(WebMExportGlobalsPtr globals, GenericStreamPtr as)
{
dbg_printf("[WebM] enter initVorbisComponent\n");
ComponentResult err = noErr;
if (globals->audioSettingsAtom == NULL)
getDefaultVorbisAtom(globals);
//This chunk initializes the Component instance that will be used for decompression : TODO put this in its own function
err = OpenADefaultComponent(StandardCompressionType, StandardCompressionSubTypeAudio, &as->aud.vorbisComponentInstance);
if (err) goto bail;
AudioStreamBasicDescription *inFormat = NULL;
inFormat = calloc(1, sizeof(AudioStreamBasicDescription));
if (inFormat == NULL) goto bail;
err = getInputBasicDescription(as, inFormat);
if (err) goto bail;
getInputBasicDescription(as, inFormat);
err = SCSetSettingsFromAtomContainer(as->aud.vorbisComponentInstance, globals->audioSettingsAtom);
if (err) goto bail;
err = QTGetComponentProperty(as->aud.vorbisComponentInstance, kQTPropertyClass_SCAudio,
kQTSCAudioPropertyID_BasicDescription,
sizeof(AudioStreamBasicDescription), &as->aud.asbd, NULL);
if (err) goto bail;
err = QTSetComponentProperty(as->aud.vorbisComponentInstance, kQTPropertyClass_SCAudio, kQTSCAudioPropertyID_InputBasicDescription,
sizeof(AudioStreamBasicDescription), inFormat);
bail:
if (inFormat != NULL)
free(inFormat);
dbg_printf("[WebM]initVorbisComponent return %d\n", err);
return err;
}
int convertToMP4PathThrough(CFStringRef inFile, CFStringRef outFile)
{
OSStatus error;
MovieExportComponent movieExporter = NULL;
Handle inDataRef=0, outDataRef=0;
OSType inDataRefType, outDataRefType;
short inResID = 0;
Movie theMovie=0;
int ret = -1;
error = OpenADefaultComponent(MovieExportType, kQTFileTypeMP4, &movieExporter);
if(error) {
fprintf(stderr,"OpenADefaultComponent error: cannot find the QuickTime conponent\n");
goto last;
}
error = QTNewDataReferenceFromFullPathCFString(inFile, kQTNativeDefaultPathStyle, 0, &inDataRef, &inDataRefType);
if(error) {
fprintf(stderr,"QTNewDataReferenceFromFullPathCFString error: input file path is invalid\n");
goto last;
}
error = QTNewDataReferenceFromFullPathCFString(outFile, kQTNativeDefaultPathStyle, 0, &outDataRef, &outDataRefType);
if(error) {
fprintf(stderr,"QTNewDataReferenceFromFullPathCFString error: output file path is invalid\n");
goto last;
}
error = NewMovieFromDataRef(&theMovie, newMovieActive, &inResID, inDataRef, inDataRefType);
if(error) {
fprintf(stderr,"NewMovieFromDataRef error: cannot open the input file\n");
goto last;
}
Track theTrack = getSoundTrack(theMovie);
Media theMedia = GetTrackMedia(theTrack);
DeleteTrackSegment(theTrack, 0, GetTrackDuration(theTrack));
SetMovieTimeScale(theMovie, GetMediaTimeScale(theMedia));
InsertMediaIntoTrack(theTrack, 0, 0, GetMediaDuration(theMedia), fixed1);
Boolean useHighResolutionAudio = true;
QTSetComponentProperty(
movieExporter,
kQTPropertyClass_MovieExporter,
kQTMovieExporterPropertyID_EnableHighResolutionAudioFeatures,
sizeof(Boolean),
&useHighResolutionAudio
);
UInt32 ftyp = 'mp42';
QTSetComponentProperty(
movieExporter,
kQTPropertyClass_MovieExporter,
'ftyp',
4,
&ftyp
);
QTAtomContainer ac;
MovieExportGetSettingsAsAtomContainer(movieExporter, &ac);
QTAtom ensoAtom = QTFindChildByID(ac, kParentAtomIsContainer, kQTSettingsMovieExportEnableSound, 1, NULL);
if(ensoAtom) {
long size, *data;
QTGetAtomDataPtr(ac,ensoAtom,&size,(Ptr *)&data);
data[0] = EndianS32_NtoB('past');
QTSetAtomData(ac, ensoAtom, size, data);
MovieExportSetSettingsFromAtomContainer(movieExporter, ac);
}
DisposeHandle(ac);
/*Boolean cancelled;
error = MovieExportDoUserDialog(movieExporter, theMovie, NULL, 0, GetMovieDuration(theMovie), &cancelled);
if(cancelled) goto last;
if(error) {
printf("MovieExportDoUserDialog error\n");
goto last;
}*/
error = ConvertMovieToDataRef(theMovie, 0, outDataRef, outDataRefType, kQTFileTypeMP4, FOUR_CHAR_CODE('TVOD'), createMovieFileDeleteCurFile|createMovieFileDontCreateResFile, movieExporter);
if(error) {
fprintf(stderr,"ConvertMovieToDataRef error: cannot translate .mov into .m4a (%d)\n",error);
goto last;
}
ret = 0;
last:
if(movieExporter) CloseComponent(movieExporter);
if(theMovie) DisposeMovie(theMovie);
if(inDataRef) DisposeHandle(inDataRef);
if(outDataRef) DisposeHandle(outDataRef);
return ret;
}
