| Methods Summary |
|---|
| private boolean | determineVariableBitrate(org.jaudiotagger.audio.asf.data.AsfHeader header)Determines if the "isVbr" field is set in the extended content
description.
final List<Class<? extends ChunkReader>> readers = new ArrayList<Class<? extends ChunkReader>>();
readers.add(ContentDescriptionReader.class);
readers.add(ContentBrandingReader.class);
readers.add(MetadataReader.class);
readers.add(LanguageListReader.class);
// Create the header extension object reader with just content
// description reader as well
// as extended content description reader.
final AsfExtHeaderReader extReader = new AsfExtHeaderReader(readers,
true);
readers.add(FileHeaderReader.class);
readers.add(StreamChunkReader.class);
HEADER_READER = new AsfHeaderReader(readers, true);
HEADER_READER.setExtendedHeaderReader(extReader);
assert header != null;
boolean result = false;
final MetadataContainer extDesc = header
.findExtendedContentDescription();
if (extDesc != null) {
final List<MetadataDescriptor> descriptors = extDesc
.getDescriptorsByName("IsVBR");
if (descriptors != null && !descriptors.isEmpty()) {
result = Boolean.TRUE.toString().equals(
descriptors.get(0).getString());
}
}
return result;
|
| private org.jaudiotagger.audio.generic.GenericAudioHeader | getAudioHeader(org.jaudiotagger.audio.asf.data.AsfHeader header)Creates a generic audio header instance with provided data from header.
final GenericAudioHeader info = new GenericAudioHeader();
if (header.getFileHeader() == null) {
throw new CannotReadException(
"Invalid ASF/WMA file. File header object not available.");
}
if (header.getAudioStreamChunk() == null) {
throw new CannotReadException(
"Invalid ASF/WMA file. No audio stream contained.");
}
info.setBitrate(header.getAudioStreamChunk().getKbps());
info.setChannelNumber((int) header.getAudioStreamChunk()
.getChannelCount());
info.setEncodingType("ASF (audio): "
+ header.getAudioStreamChunk().getCodecDescription());
info
.setLossless(header.getAudioStreamChunk()
.getCompressionFormat() == AudioStreamChunk.WMA_LOSSLESS);
info.setPreciseLength(header.getFileHeader().getPreciseDuration());
info.setSamplingRate((int) header.getAudioStreamChunk()
.getSamplingRate());
info.setVariableBitRate(determineVariableBitrate(header));
return info;
|
| protected org.jaudiotagger.audio.generic.GenericAudioHeader | getEncodingInfo(java.io.RandomAccessFile raf)(overridden)
raf.seek(0);
GenericAudioHeader info;
try {
final AsfHeader header = AsfHeaderReader.readInfoHeader(raf);
if (header == null) {
throw new CannotReadException(
"Some values must have been "
+ "incorrect for interpretation as asf with wma content.");
}
info = getAudioHeader(header);
} catch (final Exception e) {
if (e instanceof IOException) {
throw (IOException) e;
} else if (e instanceof CannotReadException) {
throw (CannotReadException) e;
} else {
throw new CannotReadException("Failed to read. Cause: "
+ e.getMessage(), e);
}
}
return info;
|
| private org.jaudiotagger.tag.asf.AsfTag | getTag(org.jaudiotagger.audio.asf.data.AsfHeader header)Creates a tag instance with provided data from header.
return TagConverter.createTagOf(header);
|
| protected org.jaudiotagger.tag.asf.AsfTag | getTag(java.io.RandomAccessFile raf)(overridden)
raf.seek(0);
AsfTag tag;
try {
final AsfHeader header = AsfHeaderReader.readTagHeader(raf);
if (header == null) {
throw new CannotReadException(
"Some values must have been "
+ "incorrect for interpretation as asf with wma content.");
}
tag = TagConverter.createTagOf(header);
} catch (final Exception e) {
logger.severe(e.getMessage());
if (e instanceof IOException) {
throw (IOException) e;
} else if (e instanceof CannotReadException) {
throw (CannotReadException) e;
} else {
throw new CannotReadException("Failed to read. Cause: "
+ e.getMessage());
}
}
return tag;
|
| public org.jaudiotagger.audio.AudioFile | read(java.io.File f){@inheritDoc}
if (!f.canRead()) {
throw new CannotReadException(
ErrorMessage.GENERAL_READ_FAILED_DO_NOT_HAVE_PERMISSION_TO_READ_FILE
.getMsg(f.getAbsolutePath()));
}
InputStream stream = null;
try {
stream = new FullRequestInputStream(new BufferedInputStream(
new FileInputStream(f)));
final AsfHeader header = HEADER_READER.read(Utils.readGUID(stream),
stream, 0);
if (header == null) {
throw new CannotReadException(ErrorMessage.ASF_HEADER_MISSING
.getMsg(f.getAbsolutePath()));
}
if (header.getFileHeader() == null) {
throw new CannotReadException(
ErrorMessage.ASF_FILE_HEADER_MISSING.getMsg(f
.getAbsolutePath()));
}
// Just log a warning because file seems to play okay
if (header.getFileHeader().getFileSize().longValue() != f.length()) {
logger
.warning(ErrorMessage.ASF_FILE_HEADER_SIZE_DOES_NOT_MATCH_FILE_SIZE
.getMsg(f.getAbsolutePath(), header
.getFileHeader().getFileSize()
.longValue(), f.length()));
}
return new AudioFile(f, getAudioHeader(header), getTag(header));
} catch (final CannotReadException e) {
throw e;
} catch (final Exception e) {
throw new CannotReadException("\"" + f + "\" :" + e, e);
} finally {
try {
if (stream != null) {
stream.close();
}
} catch (final Exception ex) {
LOGGER.severe("\"" + f + "\" :" + ex);
}
}
|
