Class MediaInput

java.lang.Object

javaforce.media.MediaCoder

javaforce.media.MediaFormat

javaforce.media.MediaInput

All Implemented Interfaces:

MediaIO

public class MediaInput
extends MediaFormat
implements MediaIO

Field Summary

Fields inherited from class MediaCoder

AUDIO_FRAME, AV_CODEC_ID_AAC, AV_CODEC_ID_AC3, AV_CODEC_ID_DEFAULT, AV_CODEC_ID_FLAC, AV_CODEC_ID_GSM_MS, AV_CODEC_ID_H263, AV_CODEC_ID_H264, AV_CODEC_ID_H265, AV_CODEC_ID_MP2, AV_CODEC_ID_MP3, AV_CODEC_ID_MPEG1VIDEO, AV_CODEC_ID_MPEG2VIDEO, AV_CODEC_ID_MPEG4, AV_CODEC_ID_NONE, AV_CODEC_ID_OPUS, AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_SPEEX, AV_CODEC_ID_THEORA, AV_CODEC_ID_VORBIS, AV_CODEC_ID_VP8, AV_CODEC_ID_VP9, AV_FORMAT_ID_AVI, AV_FORMAT_ID_MKV, AV_FORMAT_ID_MOV, AV_FORMAT_ID_MP1, AV_FORMAT_ID_MP2, AV_FORMAT_ID_MP4, AV_FORMAT_ID_OGG, AV_FORMAT_ID_WAV, AV_FORMAT_ID_WEBM, ctx, debug, END_FRAME, NULL_FRAME, PROFILE_BASELINE, PROFILE_HIGH, PROFILE_MAIN, SEEK_CUR, SEEK_END, SEEK_SET, shared, VIDEO_FRAME

Constructor Summary

Constructors

Constructor	Description
MediaInput()

Method Summary

Modifier and Type	Method	Description
boolean	close()	Closes media file and frees resources.
MediaAudioDecoder	createAudioDecoder()	Create audio decoder.
MediaAudioDecoder	createAudioDecoder(int chs, int freq)	Create audio decoder.
MediaVideoDecoder	createVideoDecoder()	Create video decoder.
MediaVideoDecoder	createVideoDecoder(int width, int height)	Create video decoder.
int	getAudioChannels(long ctx)
int	getAudioSampleRate(long ctx)
CodecInfo	getCodecInfo()	Returns media video/audio codec info.
long	getDuration(long ctx)
int	getPacketData(long ctx, byte[] data, int offset, int length)	Copies next packet into data and returns stream.
boolean	getPacketKeyFrame(long ctx)	Returns next packet key frame flag.
float	getVideoFrameRate(long ctx)
int	getVideoHeight(long ctx)
int	getVideoKeyFrameInterval(long ctx)
int	getVideoWidth(long ctx)
boolean	open(String file, String format)	Opens media file for decoding.
boolean	open(MediaIO io)	Opens media using user supplied MediaIO for decoding.
int	read(byte[] data)	Request to read data.
int	read(long ctx)	Reads next packet and returns size.
Packet	readPacket()	Reads next packet.
boolean	seek(long seconds)	Seek media to time in seconds.
long	seek(long pos, int how)	Request to seek file.
int	write(byte[] data)	Request to write data.

Methods inherited from class MediaFormat

getAudioBitRate, getAudioCodecID, getAudioStream, getVideoBitRate, getVideoCodecID, getVideoStream

Methods inherited from class MediaCoder

getStream, init, isRunning, setLogging, setStream

Methods inherited from class Object

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

Constructor Details

MediaInput

public MediaInput()

Method Details

open

public boolean open(String file,
 String format)

Opens media file for decoding.

read

public int read(byte[] data)

Description copied from interface: MediaIO

Request to read data.

Specified by:

read in interface MediaIO

Parameters:

data - = buffer to receive data

write

public int write(byte[] data)

Description copied from interface: MediaIO

Request to write data.

Specified by:

write in interface MediaIO

Parameters:

data - = buffer of data to be written.

seek

public long seek(long pos,
 int how)

Description copied from interface: MediaIO

Request to seek file.

Specified by:

seek in interface MediaIO

Parameters:

pos - = position

how - = how to seek (see MediaCoder.SEEK_... types)

open

public boolean open(MediaIO io)

Opens media using user supplied MediaIO for decoding.

getDuration

public long getDuration(long ctx)

getVideoWidth

public int getVideoWidth(long ctx)

getVideoHeight

public int getVideoHeight(long ctx)

getVideoFrameRate

public float getVideoFrameRate(long ctx)

getVideoKeyFrameInterval

public int getVideoKeyFrameInterval(long ctx)

getAudioChannels

public int getAudioChannels(long ctx)

getAudioSampleRate

public int getAudioSampleRate(long ctx)

getCodecInfo

public CodecInfo getCodecInfo()

Returns media video/audio codec info.

close

public boolean close()

Closes media file and frees resources.

createVideoDecoder

public MediaVideoDecoder createVideoDecoder(int width,
 int height)

Create video decoder.

Parameters:

width - = desired width (-1 = no conversion)

height - = desired height (-1 = no conversion)

createVideoDecoder

public MediaVideoDecoder createVideoDecoder()

Create video decoder.

createAudioDecoder

public MediaAudioDecoder createAudioDecoder(int chs,
 int freq)

Create audio decoder.

Parameters:

chs - = desired channels (-1 = no conversion)

freq - = desired sample rate (-1 = no conversion)

createAudioDecoder

public MediaAudioDecoder createAudioDecoder()

Create audio decoder.

read

public int read(long ctx)

Reads next packet and returns size. Used internally by readPacket().

getPacketKeyFrame

public boolean getPacketKeyFrame(long ctx)

Returns next packet key frame flag. Used internally by readPacket().

getPacketData

public int getPacketData(long ctx,
 byte[] data,
 int offset,
 int length)

Copies next packet into data and returns stream. Used internally by readPacket().

readPacket

public Packet readPacket()

Reads next packet. Packet.stream will indicate which stream it is.

seek

public boolean seek(long seconds)

Seek media to time in seconds.