/**
* Injects metadata (other than Cue points) into a tag
*
* @param meta Metadata
* @param tag Tag
* @return New tag with injected metadata
*/
private ITag injectMetaData(IMetaData<?, ?> meta, ITag tag) {
IoBuffer bb = IoBuffer.allocate(1000);
bb.setAutoExpand(true);
Output out = new Output(bb);
Serializer.serialize(out, "onMetaData");
Serializer.serialize(out, meta);
IoBuffer tmpBody = out.buf().flip();
int tmpBodySize = out.buf().limit();
int tmpPreviousTagSize = tag.getPreviousTagSize();
return new Tag(IoConstants.TYPE_METADATA, 0, tmpBodySize, tmpBody, tmpPreviousTagSize);
}
/**
* Injects metadata (Cue Points) into a tag
*
* @param meta Metadata (cue points)
* @param tag Tag
* @return ITag tag New tag with injected metadata
*/
private ITag injectMetaCue(IMetaCue meta, ITag tag) {
// IMeta meta = (MetaCue) cue;
Output out = new Output(IoBuffer.allocate(1000));
Serializer.serialize(out, "onCuePoint");
Serializer.serialize(out, meta);
IoBuffer tmpBody = out.buf().flip();
int tmpBodySize = out.buf().limit();
int tmpPreviousTagSize = tag.getPreviousTagSize();
int tmpTimestamp = getTimeInMilliseconds(meta);
return new Tag(
IoConstants.TYPE_METADATA, tmpTimestamp, tmpBodySize, tmpBody, tmpPreviousTagSize);
}
/**
* Create tag for metadata event.
*
* @return Metadata event tag
*/
private ITag createFileMeta() {
// Create tag for onMetaData event
ByteBuffer buf = ByteBuffer.allocate(1024);
buf.setAutoExpand(true);
Output out = new Output(buf);
// Duration property
out.writeString("onMetaData");
Map<Object, Object> props = new HashMap<Object, Object>();
props.put("duration", duration / 1000.0);
if (firstVideoTag != -1) {
long old = getCurrentPosition();
setCurrentPosition(firstVideoTag);
readTagHeader();
fillBuffer(1);
byte frametype = in.get();
// Video codec id
props.put("videocodecid", frametype & MASK_VIDEO_CODEC);
setCurrentPosition(old);
}
if (firstAudioTag != -1) {
long old = getCurrentPosition();
setCurrentPosition(firstAudioTag);
readTagHeader();
fillBuffer(1);
byte frametype = in.get();
// Audio codec id
props.put("audiocodecid", (frametype & MASK_SOUND_FORMAT) >> 4);
setCurrentPosition(old);
}
props.put("canSeekToEnd", true);
out.writeMap(props, new Serializer());
buf.flip();
ITag result = new Tag(IoConstants.TYPE_METADATA, 0, buf.limit(), null, 0);
result.setBody(buf);
return result;
}
