Java ITag.setBody方法代码示例

import org.red5.io.ITag; //导入方法依赖的package包/类
/**
 * Tag sequence
 * MetaData, Audio config, remaining audio  
 * 
 * Packet prefixes:
 * af 00 ...   06 = Audio extra data (first audio packet)
 * af 01          = Audio frame
 * 
 * Audio extra data(s): 
 * af 00                = Prefix
 * 11 90 4f 14          = AAC Main   = aottype 0
 * 12 10                = AAC LC     = aottype 1
 * 13 90 56 e5 a5 48 00 = HE-AAC SBR = aottype 2
 * 06                   = Suffix
 * 
 * Still not absolutely certain about this order or the bytes - need to verify later
 */
private void createPreStreamingTags() {
	log.debug("Creating pre-streaming tags");
	if (audioDecoderBytes != null) {
		IoBuffer body = IoBuffer.allocate(audioDecoderBytes.length + 3);
		body.put(new byte[] { (byte) 0xaf, (byte) 0 }); //prefix
		if (log.isDebugEnabled()) {
			log.debug("Audio decoder bytes: {}", HexDump.byteArrayToHexString(audioDecoderBytes));
		}
		body.put(audioDecoderBytes);
		body.put((byte) 0x06); //suffix
		ITag tag = new Tag(IoConstants.TYPE_AUDIO, 0, body.position(), null, prevFrameSize);
		body.flip();
		tag.setBody(body);
		//add tag
		firstTags.add(tag);
	} else {
		//default to aac-lc when the esds doesnt contain descripter bytes
		log.warn("Audio decoder bytes were not available");
	}
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
/**
 * Tag sequence MetaData, Audio config, remaining audio
 * 
 * Packet prefixes: af 00 ... 06 = Audio extra data (first audio packet) af 01 = Audio frame
 * 
 * Audio extra data(s): af 00 = Prefix 11 90 4f 14 = AAC Main = aottype 0 12 10 = AAC LC = aottype 1 13 90 56 e5 a5 48 00 = HE-AAC SBR =
 * aottype 2 06 = Suffix
 * 
 * Still not absolutely certain about this order or the bytes - need to verify later
 */
private void createPreStreamingTags() {
    log.debug("Creating pre-streaming tags");
    if (audioDecoderBytes != null) {
        IoBuffer body = IoBuffer.allocate(audioDecoderBytes.length + 3);
        body.put(new byte[] { (byte) 0xaf, (byte) 0 }); //prefix
        if (log.isDebugEnabled()) {
            log.debug("Audio decoder bytes: {}", HexDump.byteArrayToHexString(audioDecoderBytes));
        }
        body.put(audioDecoderBytes);
        body.put((byte) 0x06); //suffix
        ITag tag = new Tag(IoConstants.TYPE_AUDIO, 0, body.position(), null, prevFrameSize);
        body.flip();
        tag.setBody(body);
        //add tag
        firstTags.add(tag);
    } else {
        //default to aac-lc when the esds doesnt contain descripter bytes
        log.warn("Audio decoder bytes were not available");
    }
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
/**
 * Create tag for metadata event.
 *
 * @return         Metadata event tag
 */
ITag createFileMeta() {
	log.debug("Creating onMetaData");
	// Create tag for onMetaData event
	IoBuffer buf = IoBuffer.allocate(1024);
	buf.setAutoExpand(true);
	Output out = new Output(buf);
	out.writeString("onMetaData");
	Map<Object, Object> props = new HashMap<Object, Object>();
	// Duration property
	props.put("duration", ((double) duration / (double) timeScale));

	// Audio codec id - watch for mp3 instead of aac
	props.put("audiocodecid", audioCodecId);
	props.put("aacaot", audioCodecType);
	props.put("audiosamplerate", audioTimeScale);
	props.put("audiochannels", audioChannels);
	props.put("canSeekToEnd", false);
	out.writeMap(props);
	buf.flip();

	//now that all the meta properties are done, update the duration
	duration = Math.round(duration * 1000d);

	ITag result = new Tag(IoConstants.TYPE_METADATA, 0, buf.limit(), null, 0);
	result.setBody(buf);
	return result;
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
/**
 * Creates file metadata object
 * 
 * @return Tag
 */
private ITag createFileMeta() {
	log.debug("createFileMeta");
	// create tag for onMetaData event
	IoBuffer in = IoBuffer.allocate(1024);
	in.setAutoExpand(true);
	Output out = new Output(in);
	out.writeString("onMetaData");
	Map<Object, Object> props = new HashMap<Object, Object>();
	props.put("duration", frameMeta.timestamps[frameMeta.timestamps.length - 1] / 1000.0);
	props.put("audiocodecid", IoConstants.FLAG_FORMAT_MP3);
	if (dataRate > 0) {
		props.put("audiodatarate", dataRate);
	}
	props.put("canSeekToEnd", true);
	//set id3 meta data if it exists
	if (metaData != null) {
		props.put("artist", metaData.getArtist());
		props.put("album", metaData.getAlbum());
		props.put("songName", metaData.getSongName());
		props.put("genre", metaData.getGenre());
		props.put("year", metaData.getYear());
		props.put("track", metaData.getTrack());
		props.put("comment", metaData.getComment());
		if (metaData.hasCoverImage()) {
			Map<Object, Object> covr = new HashMap<Object, Object>(1);
			covr.put("covr", new Object[] { metaData.getCovr() });
			props.put("tags", covr);
		}
		//clear meta for gc
		metaData = null;
	}
	out.writeMap(props);
	in.flip();

	ITag result = new Tag(IoConstants.TYPE_METADATA, 0, in.limit(), null, prevSize);
	result.setBody(in);
	return result;
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
protected void write(int timeStamp, byte type, IoBuffer data) throws IOException {
	log.trace("timeStamp :: {}", timeStamp);
	ITag tag = new Tag();
	tag.setDataType(type);

	tag.setBodySize(data.limit());
	tag.setTimestamp(timeStamp);
	tag.setBody(data);

	writer.writeTag(tag);
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
/**
 * Create tag for metadata event.
 *
 * @return Metadata event tag
 */
ITag createFileMeta() {
    log.debug("Creating onMetaData");
    // Create tag for onMetaData event
    IoBuffer buf = IoBuffer.allocate(1024);
    buf.setAutoExpand(true);
    Output out = new Output(buf);
    out.writeString("onMetaData");
    Map<Object, Object> props = new HashMap<Object, Object>();
    // Duration property
    props.put("duration", ((double) duration / (double) timeScale));

    // Audio codec id - watch for mp3 instead of aac
    props.put("audiocodecid", audioCodecId);
    props.put("aacaot", audioCodecType);
    props.put("audiosamplerate", audioTimeScale);
    props.put("audiochannels", audioChannels);
    props.put("canSeekToEnd", false);
    out.writeMap(props);
    buf.flip();

    //now that all the meta properties are done, update the duration
    duration = Math.round(duration * 1000d);

    ITag result = new Tag(IoConstants.TYPE_METADATA, 0, buf.limit(), null, 0);
    result.setBody(buf);
    return result;
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
/**
 * Create tag for metadata event.
 *
 * @return         Metadata event tag
 */
ITag createFileMeta() {
	log.debug("Creating onMetaData");
	// Create tag for onMetaData event
	IoBuffer buf = IoBuffer.allocate(1024);
	buf.setAutoExpand(true);
	Output out = new Output(buf);
	out.writeString("onMetaData");
	Map<Object, Object> props = new HashMap<Object, Object>();
	// Duration property
	props.put("duration", ((double) duration / (double) timeScale));

	// Audio codec id - watch for mp3 instead of aac
	props.put("audiocodecid", audioCodecId);
	props.put("aacaot", audioCodecType);
	props.put("audiosamplerate", audioTimeScale);
	props.put("audiochannels", audioChannels);

	props.put("moovposition", moovOffset);
	//tags will only appear if there is an "ilst" atom in the file
	//props.put("tags", "");

	props.put("canSeekToEnd", false);
	out.writeMap(props, new Serializer());
	buf.flip();

	//now that all the meta properties are done, update the duration
	duration = Math.round(duration * 1000d);

	ITag result = new Tag(IoConstants.TYPE_METADATA, 0, buf.limit(), null, 0);
	result.setBody(buf);
	return result;
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
/**
 * Creates file metadata object
 * 
 * @return Tag
 */
private ITag createFileMeta() {
	log.debug("createFileMeta");
	// create tag for onMetaData event
	IoBuffer in = IoBuffer.allocate(1024);
	in.setAutoExpand(true);
	Output out = new Output(in);
	out.writeString("onMetaData");
	Map<Object, Object> props = new HashMap<Object, Object>();
	props.put("duration", frameMeta.timestamps[frameMeta.timestamps.length - 1] / 1000.0);
	props.put("audiocodecid", IoConstants.FLAG_FORMAT_MP3);
	if (dataRate > 0) {
		props.put("audiodatarate", dataRate);
	}
	props.put("canSeekToEnd", true);
	//set id3 meta data if it exists
	if (metaData != null) {
		props.put("artist", metaData.getArtist());
		props.put("album", metaData.getAlbum());
		props.put("songName", metaData.getSongName());
		props.put("genre", metaData.getGenre());
		props.put("year", metaData.getYear());
		props.put("track", metaData.getTrack());
		props.put("comment", metaData.getComment());
		if (metaData.hasCoverImage()) {
			Map<Object, Object> covr = new HashMap<Object, Object>(1);
			covr.put("covr", new Object[] { metaData.getCovr() });
			props.put("tags", covr);
		}
		//clear meta for gc
		metaData = null;
	}
	out.writeMap(props, new Serializer());
	in.flip();

	ITag result = new Tag(IoConstants.TYPE_METADATA, 0, in.limit(), null, prevSize);
	result.setBody(in);
	return result;
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
/** {@inheritDoc} */
public ITag readTag() {
	ITag tag = null;
	try {
		lock.acquire();
		long oldPos = getCurrentPosition();
		tag = readTagHeader();
		if (tag != null) {
			boolean isMetaData = tag.getDataType() == TYPE_METADATA;
			log.debug("readTag, oldPos: {}, tag header: \n{}", oldPos, tag);
			if (!metadataSent && !isMetaData && generateMetadata) {
				// Generate initial metadata automatically
				setCurrentPosition(oldPos);
				KeyFrameMeta meta = analyzeKeyFrames();
				if (meta != null) {
					metadataSent = true;
					return createFileMeta();
				}
			}
			int bodySize = tag.getBodySize();
			IoBuffer body = IoBuffer.allocate(bodySize, false);
			// XXX Paul: this assists in 'properly' handling damaged FLV files		
			long newPosition = getCurrentPosition() + bodySize;
			if (newPosition <= getTotalBytes()) {
				int limit;
				while (getCurrentPosition() < newPosition) {
					fillBuffer(newPosition - getCurrentPosition());
					if (getCurrentPosition() + in.remaining() > newPosition) {
						limit = in.limit();
						in.limit((int) (newPosition - getCurrentPosition()) + in.position());
						body.put(in);
						in.limit(limit);
					} else {
						body.put(in);
					}
				}
				body.flip();
				tag.setBody(body);
			}
		} else {
			log.debug("Tag was null");
		}
	} catch (InterruptedException e) {
		log.warn("Exception acquiring lock", e);
	} finally {
		lock.release();
	}
	return tag;
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
/**
 * Creates file metadata object
 * 
 * @return Tag
 */
private ITag createFileMeta() {
    log.debug("createFileMeta");
    // create tag for onMetaData event
    IoBuffer in = IoBuffer.allocate(1024);
    in.setAutoExpand(true);
    Output out = new Output(in);
    out.writeString("onMetaData");
    Map<Object, Object> props = new HashMap<Object, Object>();
    props.put("audiocodecid", IoConstants.FLAG_FORMAT_MP3);
    props.put("canSeekToEnd", true);
    // set id3 meta data if it exists
    if (metaData != null) {
        if (metaData.artist != null) {
            props.put("artist", metaData.artist);
        }
        if (metaData.album != null) {
            props.put("album", metaData.album);
        }
        if (metaData.songName != null) {
            props.put("songName", metaData.songName);
        }
        if (metaData.genre != null) {
            props.put("genre", metaData.genre);
        }
        if (metaData.year != null) {
            props.put("year", metaData.year);
        }
        if (metaData.track != null) {
            props.put("track", metaData.track);
        }
        if (metaData.comment != null) {
            props.put("comment", metaData.comment);
        }
        if (metaData.duration != null) {
            props.put("duration", metaData.duration);
        }
        if (metaData.channels != null) {
            props.put("channels", metaData.channels);
        }
        if (metaData.sampleRate != null) {
            props.put("samplerate", metaData.sampleRate);
        }
        if (metaData.hasCoverImage()) {
            Map<Object, Object> covr = new HashMap<>(1);
            covr.put("covr", new Object[] { metaData.getCovr() });
            props.put("tags", covr);
        }
        //clear meta for gc
        metaData = null;
    }
    log.debug("Metadata properties map: {}", props);
    // check for duration
    if (!props.containsKey("duration")) {
        // generate it from framemeta
        if (frameMeta != null) {
            props.put("duration", frameMeta.timestamps[frameMeta.timestamps.length - 1] / 1000.0);
        } else {
            log.debug("Frame meta was null");
        }
    }
    // set datarate
    if (dataRate > 0) {
        props.put("audiodatarate", dataRate);
    }
    out.writeMap(props);
    in.flip();
    // meta-data
    ITag result = new Tag(IoConstants.TYPE_METADATA, 0, in.limit(), null, prevSize);
    result.setBody(in);
    return result;
}
 

import org.red5.io.ITag; //导入方法依赖的package包/类
/**
 * Write incoming data to the file.
 * 
 * @param timestamp adjusted timestamp
 * @param msg stream data
 */
private final void write(int timestamp, IRTMPEvent msg) {
	byte dataType = msg.getDataType();
	log.debug("Write - timestamp: {} type: {}", timestamp, dataType);
	//if the last message was a reset or we just started, use the header timer
	if (startTimestamp == -1) {
		startTimestamp = timestamp;
		timestamp = 0;
	} else {
		timestamp -= startTimestamp;
	}
	// create a tag
	ITag tag = new Tag();
	tag.setDataType(dataType);
	tag.setTimestamp(timestamp);
	// get data bytes
	IoBuffer data = ((IStreamData<?>) msg).getData().duplicate();
	if (data != null) {
		tag.setBodySize(data.limit());
		tag.setBody(data);
	}
	// only allow blank tags if they are of audio type
	if (tag.getBodySize() > 0 || dataType == ITag.TYPE_AUDIO) {
		try {
			if (timestamp >= 0) {
				if (!writer.writeTag(tag)) {
					log.warn("Tag was not written");
				}
			} else {
				log.warn("Skipping message with negative timestamp.");
			}
		} catch (IOException e) {
			log.error("Error writing tag", e);
		} finally {
			if (data != null) {
				data.clear();
				data.free();
			}
		}
	}
	data = null;
}