RageSoundReader_FileReader::OpenResult RageSoundReader_Vorbisfile::Open( RageFileBasic *pFile )
{
m_pFile = pFile;
vf = new OggVorbis_File;
memset( vf, 0, sizeof(*vf) );
ov_callbacks callbacks;
callbacks.read_func = OggRageFile_read_func;
callbacks.seek_func = OggRageFile_seek_func;
callbacks.close_func = OggRageFile_close_func;
callbacks.tell_func = OggRageFile_tell_func;
int ret = ov_open_callbacks( pFile, vf, NULL, 0, callbacks );
if( ret < 0 )
{
SetError( ov_ssprintf(ret, "ov_open failed") );
delete vf;
vf = NULL;
switch( ret )
{
case OV_ENOTVORBIS:
return OPEN_UNKNOWN_FILE_FORMAT;
default:
return OPEN_FATAL_ERROR;
}
}
eof = false;
read_offset = (int) ov_pcm_tell(vf);
vorbis_info *vi = ov_info( vf, -1 );
channels = vi->channels;
return OPEN_OK;
}
SoundReader_FileReader::OpenResult RageSoundReader_Vorbisfile::Open(CString filename_)
{
filename=filename_;
vf = new OggVorbis_File;
memset( vf, 0, sizeof(*vf) );
RageFile *f = new RageFile;
if( !f->Open( filename ) )
{
SetError( ssprintf("ogg: opening \"%s\" failed: %s", filename.c_str(), f->GetError().c_str()) );
delete f;
delete vf;
vf = NULL;
return OPEN_FATAL_ERROR;
}
ov_callbacks callbacks;
callbacks.read_func = OggRageFile_read_func;
callbacks.seek_func = OggRageFile_seek_func;
callbacks.close_func = OggRageFile_close_func;
callbacks.tell_func = OggRageFile_tell_func;
int ret = ov_open_callbacks( f, vf, NULL, 0, callbacks );
if(ret < 0)
{
SetError( ov_ssprintf(ret, "ov_open failed") );
delete f;
delete vf;
vf = NULL;
switch( ret )
{
case OV_ENOTVORBIS:
return OPEN_UNKNOWN_FILE_FORMAT;
default:
return OPEN_FATAL_ERROR;
}
}
eof = false;
read_offset = (int) ov_pcm_tell(vf);
vorbis_info *vi = ov_info( vf, -1 );
ASSERT_M( vi->channels == 1 || vi->channels == 2, ssprintf("%i", vi->channels) );
channels = vi->channels;
return OPEN_OK;
}
int RageSoundReader_Vorbisfile::SetPosition( int iFrame )
{
eof = false;
const ogg_int64_t sample = ogg_int64_t(iFrame);
int ret = ov_pcm_seek( vf, sample );
if(ret < 0)
{
/* Returns OV_EINVAL on EOF. */
if( ret == OV_EINVAL )
{
eof = true;
return 0;
}
SetError( ov_ssprintf(ret, "ogg: SetPosition failed") );
return -1;
}
read_offset = (int) ov_pcm_tell(vf);
return 1;
}