com.googlecode.mp4parser.boxes.mp4.objectdescriptors.DecoderConfigDescriptor Maven / Gradle / Ivy
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A generic parser and writer for all ISO 14496 based files (MP4, Quicktime, DCF, PDCF, ...)
/*
* Copyright 2011 castLabs, Berlin
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.mp4parser.boxes.mp4.objectdescriptors;
import com.coremedia.iso.Hex;
import com.coremedia.iso.IsoTypeReader;
import com.coremedia.iso.IsoTypeWriter;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.logging.Logger;
/**
* class DecoderConfigDescriptor extends BaseDescriptor : bit(8)
* tag=DecoderConfigDescrTag {
* bit(8) objectTypeIndication;
* bit(6) streamType;
* bit(1) upStream;
* const bit(1) reserved=1;
* bit(24) bufferSizeDB;
* bit(32) maxBitrate;
* bit(32) avgBitrate;
* DecoderSpecificInfo decSpecificInfo[0 .. 1];
* profileLevelIndicationIndexDescriptor profileLevelIndicationIndexDescr
* [0..255];
* }
*/
@Descriptor(tags = {0x04})
public class DecoderConfigDescriptor extends BaseDescriptor {
private static Logger log = Logger.getLogger(DecoderConfigDescriptor.class.getName());
int objectTypeIndication;
int streamType;
int upStream;
int bufferSizeDB;
long maxBitRate;
long avgBitRate;
DecoderSpecificInfo decoderSpecificInfo;
AudioSpecificConfig audioSpecificInfo;
List profileLevelIndicationDescriptors = new ArrayList();
byte[] configDescriptorDeadBytes;
public DecoderConfigDescriptor() {
tag = 0x04;
}
@Override
public void parseDetail(ByteBuffer bb) throws IOException {
objectTypeIndication = IsoTypeReader.readUInt8(bb);
int data = IsoTypeReader.readUInt8(bb);
streamType = data >>> 2;
upStream = (data >> 1) & 0x1;
bufferSizeDB = IsoTypeReader.readUInt24(bb);
maxBitRate = IsoTypeReader.readUInt32(bb);
avgBitRate = IsoTypeReader.readUInt32(bb);
BaseDescriptor descriptor;
while (bb.remaining() > 2) { //1byte tag + at least 1byte size
final int begin = bb.position();
descriptor = ObjectDescriptorFactory.createFrom(objectTypeIndication, bb);
final int read = bb.position() - begin;
log.finer(descriptor + " - DecoderConfigDescr1 read: " + read + ", size: " + (descriptor != null ? descriptor.getSize() : null));
if (descriptor != null) {
final int size = descriptor.getSize();
if (read < size) {
//skip
configDescriptorDeadBytes = new byte[size - read];
bb.get(configDescriptorDeadBytes);
}
}
if (descriptor instanceof DecoderSpecificInfo) {
decoderSpecificInfo = (DecoderSpecificInfo) descriptor;
} else if (descriptor instanceof AudioSpecificConfig) {
audioSpecificInfo = (AudioSpecificConfig) descriptor;
} else if (descriptor instanceof ProfileLevelIndicationDescriptor) {
profileLevelIndicationDescriptors.add((ProfileLevelIndicationDescriptor) descriptor);
}
}
}
int getContentSize() {
int out = 13 +
(audioSpecificInfo == null ? 0 : audioSpecificInfo.getSize()) +
(decoderSpecificInfo == null ? 0 : decoderSpecificInfo.getSize());
for (ProfileLevelIndicationDescriptor profileLevelIndicationDescriptor : profileLevelIndicationDescriptors) {
out += profileLevelIndicationDescriptor.getSize();
}
return out;
}
public ByteBuffer serialize() {
ByteBuffer out = ByteBuffer.allocate(getSize());
IsoTypeWriter.writeUInt8(out, tag);
writeSize(out, getContentSize());
IsoTypeWriter.writeUInt8(out, objectTypeIndication);
int flags = (streamType << 2) | (upStream << 1) | 1;
IsoTypeWriter.writeUInt8(out, flags);
IsoTypeWriter.writeUInt24(out, bufferSizeDB);
IsoTypeWriter.writeUInt32(out, maxBitRate);
IsoTypeWriter.writeUInt32(out, avgBitRate);
if (decoderSpecificInfo != null) {
ByteBuffer bb = decoderSpecificInfo.serialize();
out.put(bb);
}
if (audioSpecificInfo != null) {
ByteBuffer bb = audioSpecificInfo.serialize();
out.put(bb);
}
for (ProfileLevelIndicationDescriptor profileLevelIndicationDescriptor : profileLevelIndicationDescriptors) {
out.put(profileLevelIndicationDescriptor.serialize());
}
return (ByteBuffer) out.rewind();
}
public DecoderSpecificInfo getDecoderSpecificInfo() {
return decoderSpecificInfo;
}
public void setDecoderSpecificInfo(DecoderSpecificInfo decoderSpecificInfo) {
this.decoderSpecificInfo = decoderSpecificInfo;
}
public AudioSpecificConfig getAudioSpecificInfo() {
return audioSpecificInfo;
}
public void setAudioSpecificInfo(AudioSpecificConfig audioSpecificInfo) {
this.audioSpecificInfo = audioSpecificInfo;
}
public List getProfileLevelIndicationDescriptors() {
return profileLevelIndicationDescriptors;
}
public int getObjectTypeIndication() {
return objectTypeIndication;
}
public void setObjectTypeIndication(int objectTypeIndication) {
this.objectTypeIndication = objectTypeIndication;
}
public int getStreamType() {
return streamType;
}
public void setStreamType(int streamType) {
this.streamType = streamType;
}
public int getUpStream() {
return upStream;
}
public void setUpStream(int upStream) {
this.upStream = upStream;
}
public int getBufferSizeDB() {
return bufferSizeDB;
}
public void setBufferSizeDB(int bufferSizeDB) {
this.bufferSizeDB = bufferSizeDB;
}
public long getMaxBitRate() {
return maxBitRate;
}
public void setMaxBitRate(long maxBitRate) {
this.maxBitRate = maxBitRate;
}
public long getAvgBitRate() {
return avgBitRate;
}
public void setAvgBitRate(long avgBitRate) {
this.avgBitRate = avgBitRate;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append("DecoderConfigDescriptor");
sb.append("{objectTypeIndication=").append(objectTypeIndication);
sb.append(", streamType=").append(streamType);
sb.append(", upStream=").append(upStream);
sb.append(", bufferSizeDB=").append(bufferSizeDB);
sb.append(", maxBitRate=").append(maxBitRate);
sb.append(", avgBitRate=").append(avgBitRate);
sb.append(", decoderSpecificInfo=").append(decoderSpecificInfo);
sb.append(", audioSpecificInfo=").append(audioSpecificInfo);
sb.append(", configDescriptorDeadBytes=").append(Hex.encodeHex(configDescriptorDeadBytes != null ? configDescriptorDeadBytes : new byte[]{}));
sb.append(", profileLevelIndicationDescriptors=").append(profileLevelIndicationDescriptors == null ? "null" : Arrays.asList(profileLevelIndicationDescriptors).toString());
sb.append('}');
return sb.toString();
}
/*objectTypeIndication values
0x00 Forbidden
0x01 Systems ISO/IEC 14496-1 a
0x02 Systems ISO/IEC 14496-1 b
0x03 Interaction Stream
0x04 Systems ISO/IEC 14496-1 Extended BIFS Configuration c
0x05 Systems ISO/IEC 14496-1 AFX d
0x06 Font Data Stream
0x07 Synthesized Texture Stream
0x08 Streaming Text Stream
0x09-0x1F reserved for ISO use
0x20 Visual ISO/IEC 14496-2 e
0x21 Visual ITU-T Recommendation H.264 | ISO/IEC 14496-10 f
0x22 Parameter Sets for ITU-T Recommendation H.264 | ISO/IEC 14496-10 f
0x23-0x3F reserved for ISO use
0x40 Audio ISO/IEC 14496-3 g
0x41-0x5F reserved for ISO use
0x60 Visual ISO/IEC 13818-2 Simple Profile
0x61 Visual ISO/IEC 13818-2 Main Profile
0x62 Visual ISO/IEC 13818-2 SNR Profile
0x63 Visual ISO/IEC 13818-2 Spatial Profile
0x64 Visual ISO/IEC 13818-2 High Profile
0x65 Visual ISO/IEC 13818-2 422 Profile
0x66 Audio ISO/IEC 13818-7 Main Profile
0x67 Audio ISO/IEC 13818-7 LowComplexity Profile
0x68 Audio ISO/IEC 13818-7 Scaleable Sampling Rate Profile
0x69 Audio ISO/IEC 13818-3
0x6A Visual ISO/IEC 11172-2
0x6B Audio ISO/IEC 11172-3
0x6C Visual ISO/IEC 10918-1
0x6D reserved for registration authority i
0x6E Visual ISO/IEC 15444-1
0x6F - 0x9F reserved for ISO use
0xA0 - 0xBF reserved for registration authority i
0xC0 - 0xE0 user private
0xE1 reserved for registration authority i
0xE2 - 0xFE user private
0xFF no object type specified h
*/
/* streamType values
0x00 Forbidden
0x01 ObjectDescriptorStream (see 7.2.5)
0x02 ClockReferenceStream (see 7.3.2.5)
0x03 SceneDescriptionStream (see ISO/IEC 14496-11)
0x04 VisualStream
0x05 AudioStream
0x06 MPEG7Stream
0x07 IPMPStream (see 7.2.3.2)
0x08 ObjectContentInfoStream (see 7.2.4.2)
0x09 MPEGJStream
0x0A Interaction Stream
0x0B IPMPToolStream (see [ISO/IEC 14496-13])
0x0C - 0x1F reserved for ISO use
0x20 - 0x3F user private
*/
}