org.jcodec.containers.mp4.muxer

Class MP4Muxer

java.lang.Object

org.jcodec.containers.mp4.muxer.MP4Muxer

All Implemented Interfaces:

Muxer

Direct Known Subclasses:

WebOptimizedMP4Muxer

public class MP4Muxer
extends Object
implements Muxer

This class is part of JCodec ( www.jcodec.org ) This software is distributed under FreeBSD License Creates MP4 file out of a set of samples

Author:

The JCodec project

Field Summary

Fields

Modifier and Type	Field and Description
protected long	mdatOffset
protected SeekableByteChannel	out

Constructor Summary

Constructors

Constructor and Description
MP4Muxer(SeekableByteChannel output, FileTypeBox ftyp)

Method Summary

Modifier and Type	Method and Description
MuxerTrack	addAudioTrack(Codec codec, AudioCodecMeta meta) Adds an audio track and stores the provided metadata fields inside the container.
CodecMP4MuxerTrack	addCompressedAudioTrack(Codec codec, AudioFormat format)
PCMMP4MuxerTrack	addPCMAudioTrack(AudioFormat format)
TimecodeMP4MuxerTrack	addTimecodeTrack()
<T extends AbstractMP4MuxerTrack> T	addTrack(T track)
CodecMP4MuxerTrack	addTrackWithId(MP4TrackType type, Codec codec, int trackId)
MuxerTrack	addVideoTrack(Codec codec, VideoCodecMeta meta) Adds a video track and stores the provided metadata fields inside the container.
static MP4Muxer	createMP4Muxer(SeekableByteChannel output, Brand brand)
static MP4Muxer	createMP4MuxerToChannel(SeekableByteChannel output)
MovieBox	finalizeHeader()
void	finish() Finalize writing this file.
List<AbstractMP4MuxerTrack>	getAudioTracks()
int	getNextTrackId()
AbstractMP4MuxerTrack	getTimecodeTrack()
List<AbstractMP4MuxerTrack>	getTracks()
AbstractMP4MuxerTrack	getVideoTrack()
boolean	hasTrackId(int trackId)
void	storeHeader(MovieBox movie)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

mdatOffset

protected long mdatOffset

out

protected SeekableByteChannel out

Constructor Detail

MP4Muxer

public MP4Muxer(SeekableByteChannel output,
                FileTypeBox ftyp)
         throws IOException

Throws:

IOException

Method Detail

createMP4MuxerToChannel

public static MP4Muxer createMP4MuxerToChannel(SeekableByteChannel output)
                                        throws IOException

Throws:

IOException

createMP4Muxer

public static MP4Muxer createMP4Muxer(SeekableByteChannel output,
                                      Brand brand)
                               throws IOException

Throws:

IOException

addTimecodeTrack

public TimecodeMP4MuxerTrack addTimecodeTrack()

addTrackWithId

public CodecMP4MuxerTrack addTrackWithId(MP4TrackType type,
                                         Codec codec,
                                         int trackId)

getNextTrackId

public int getNextTrackId()

addTrack

public <T extends AbstractMP4MuxerTrack> T addTrack(T track)

hasTrackId

public boolean hasTrackId(int trackId)

getTracks

public List<AbstractMP4MuxerTrack> getTracks()

finish

public void finish()
            throws IOException

Description copied from interface: Muxer

Finalize writing this file. This function needs to be called at the end of the muxing session since some muxers use global headers and those can only be known at the end of the coding session. After calling this method no further muxing is possible with this muxer though this check might not be enforced by individual muxers. Calling any muxer methods after this function returns yields an undefined behavior.

Specified by:

finish in interface Muxer

Throws:

IOException

storeHeader

public void storeHeader(MovieBox movie)
                 throws IOException

Throws:

IOException

finalizeHeader

public MovieBox finalizeHeader()
                        throws IOException

Throws:

IOException

getVideoTrack

public AbstractMP4MuxerTrack getVideoTrack()

getTimecodeTrack

public AbstractMP4MuxerTrack getTimecodeTrack()

getAudioTracks

public List<AbstractMP4MuxerTrack> getAudioTracks()

addPCMAudioTrack

public PCMMP4MuxerTrack addPCMAudioTrack(AudioFormat format)

addCompressedAudioTrack

public CodecMP4MuxerTrack addCompressedAudioTrack(Codec codec,
                                                  AudioFormat format)

addVideoTrack

public MuxerTrack addVideoTrack(Codec codec,
                                VideoCodecMeta meta)

Description copied from interface: Muxer

Adds a video track and stores the provided metadata fields inside the container. Note: some containers don't store all or any metadata fields in which case some or all provided metadata will be ignored.

Specified by:

addVideoTrack in interface Muxer

Parameters:

codec - Codec type stored in this track.

meta - Video metadata including the codec type.

Returns:

A track used further to store media samples.

addAudioTrack

public MuxerTrack addAudioTrack(Codec codec,
                                AudioCodecMeta meta)

Description copied from interface: Muxer

Adds an audio track and stores the provided metadata fields inside the container. Note: some containers don't store all or any metadata fields in which case some or all provided metadata will be ignored.

Specified by:

addAudioTrack in interface Muxer

Parameters:

codec - Codec type stored in this track.

meta - Audio metadata including the codec type.

Returns:

A track used further to store media samples.