hp.telephony.media
Interface CoderConstants

All Known Subinterfaces:

ASRRecorderEvent, FaxEvent, Player, PlayerConstants, PlayerEvent, Recorder, RecorderConstants, RecorderEvent, SMSPlayerEvent, SMSRecorderEvent, TTSPlayerEvent

All Known Implementing Classes:

AsyncMediaGroup

public interface CoderConstants

Define the Symbol constants for the Coders.

These are inherited into the Player and Recorder interfaces. These are used as value for Player/Recorder.p_CoderTypes correlated to PlayerConstants/RecorderConstants. p_FileFormat

The CODECs available to media operations are the following when setting p_FileFormat to v_RawFormat, v_WavFormat or v_GSMFormat :

p_CoderTypes		p_FileFormat
		v_RawFormat	v_WavFormat	v_GSMFormat
v_Linear16Bit_64k	default, internal, plain format	supported	supported	N/A
v_ALawPCM_64k	common european format	supported	supported	N/A
v_MuLawPCM_64k	common american format	supported	supported	N/A
v_ADPCM_32k	IMA's adapatative differential pulse coded modulation	supported (no chunking)	supported (no chunking)	N/A
v_ADPCM_32kOKI	OKI's AD PCM	supported (no chunking)	supported (no chunking)	N/A
v_G723_1b	5.3 or 6.3kb/s G723.1 Annex B, used with p_G723_bitrate and p_G723_annexa	N/A	supported (proprietary payload type)	N/A
v_AMR	AMR format at Adaptating Rate, used with additional parameters.	N/A	supported (proprietary payload type)	N/A
v_G729a	G729 format at 8kb/s	N/A	supported (proprietary payload type)	N/A
v_ADPCM_16kG726	G726 format at 16kb/s	supported (no chunking)	N/A	N/A
v_ADPCM_32kG726	G726 format at 32kb/s	supported (no chunking)	N/A	N/A
v_GSM	GSM format	N/A	N/A	supported

The same CODECs are available to media operations when setting p_FileFormat to v_RawFormat, v_WavFormat or v_GSMFormat

NOTE: when playing a file with p_FileFormat set to v_WavFormat, the p_CoderTypes value is not used as it will be retrieved from the wav file header

Code snippet for playing OKI files (4 bits per sample, 8000 samples per second)

 params.put(PlayerConstants.p_FileFormat         ,PlayerConstants.v_RawFormat);
 params.put(PlayerConstants.p_CoderTypes         ,new Symbol[] {PlayerConstants.v_ADPCM_32kOKI});
 mediagroup.play("/home/IVR/how.to.use", 0, myRtcs, params);
 

Code snippet for recording a WAV file (16 bits per sample)

 params.put(PlayerConstants.p_CoderTypes         ,new Symbol[] {PlayerConstants.v_Linear16Bit_64k});
 params.put(PlayerConstants.p_FileFormat         ,PlayerConstants.v_WavFormat);
 mediagroup.record("/tmp/message.wav.007", myRtcs, params);
 

Since:

OCMP 2.0

Field Summary

static Symbol	p_AMR_SDPelement
static Symbol	p_channels
static Symbol	p_crc
static Symbol	p_G723_annexa Value can be either v_G723_yes, detects speech, generates comfort noise or v_G723_no_vad, keeps media with no voice activity as is.
static Symbol	p_G723_bitrate Value can be either v_G723_63, 6.3kbps or v_G723_53, 5.3kbps.
static Symbol	p_G729_annexb Value can be either v_G729_yes, detects speech, generates comfort noise or v_G729_no_vad, keeps media with no voice activity as is.
static Symbol	p_interleaving
static Symbol	p_maxptime
static Symbol	p_modechangeneighbor
static Symbol	p_modechangeperiod
static Symbol	p_modeset
static Symbol	p_octetalign
static Symbol	p_ptime
static Symbol	p_robustsorting
static Symbol	v_ADPCM_16kG726
static Symbol	v_ADPCM_24k
static Symbol	v_ADPCM_32k
static Symbol	v_ADPCM_32kG726
static Symbol	v_ADPCM_32kOKI
static Symbol	v_ADPCM_44k
static Symbol	v_ALawPCM_48k
static Symbol	v_ALawPCM_64k
static Symbol	v_ALawPCM_88k
static Symbol	v_AMR
static Symbol	v_AMR_WB
static Symbol	v_G723_1b
static Symbol	v_G723_53 Value for p_G723_bitrate.
static Symbol	v_G723_63 Value for p_G723_bitrate.
static Symbol	v_G723_no_vad Value for p_G723_annexa.
static Symbol	v_G723_yes Value for p_G723_annexa.
static Symbol	v_G729_no_vad Value for p_G729_annexb.
static Symbol	v_G729_yes Value for p_G729_annexb.
static Symbol	v_G729a
static Symbol	v_GSM
static Symbol	v_Linear16Bit_64k
static Symbol	v_Linear8Bit_48k
static Symbol	v_Linear8Bit_64k
static Symbol	v_Linear8Bit_88k
static Symbol	v_MuLawPCM_48k
static Symbol	v_MuLawPCM_64k
static Symbol	v_MuLawPCM_88k

Field Detail

v_ADPCM_24k

public static final Symbol v_ADPCM_24k

Since:

Not supported

v_ADPCM_32k

public static final Symbol v_ADPCM_32k

Since:

OCMP 2.2

v_ADPCM_32kOKI

public static final Symbol v_ADPCM_32kOKI

Since:

2.4

v_ADPCM_16kG726

public static final Symbol v_ADPCM_16kG726

Since:

OCMP 2.4

v_ADPCM_32kG726

public static final Symbol v_ADPCM_32kG726

Since:

OCMP 2.4

v_ADPCM_44k

public static final Symbol v_ADPCM_44k

Since:

Not supported

v_G729a

public static final Symbol v_G729a

Since:

OCMP 3.1

v_G723_63

public static final Symbol v_G723_63

Value for p_G723_bitrate.

Since:

OCMP 3.1

v_G723_53

public static final Symbol v_G723_53

Value for p_G723_bitrate.

Since:

OCMP 3.1

p_G723_bitrate

public static final Symbol p_G723_bitrate

Value can be either v_G723_63, 6.3kbps or v_G723_53, 5.3kbps.

Since:

OCMP 3.1

v_G723_no_vad

public static final Symbol v_G723_no_vad

Value for p_G723_annexa.

Since:

OCMP 3.1

v_G723_yes

public static final Symbol v_G723_yes

Value for p_G723_annexa.

Since:

OCMP 3.1

p_G723_annexa

public static final Symbol p_G723_annexa

Value can be either v_G723_yes, detects speech, generates comfort noise or v_G723_no_vad, keeps media with no voice activity as is.

Since:

OCMP 3.1

v_G729_no_vad

public static final Symbol v_G729_no_vad

Value for p_G729_annexb.

Since:

OCMP 3.1

v_G729_yes

public static final Symbol v_G729_yes

Value for p_G729_annexb.

Since:

OCMP 3.1

p_G729_annexb

public static final Symbol p_G729_annexb

Value can be either v_G729_yes, detects speech, generates comfort noise or v_G729_no_vad, keeps media with no voice activity as is.

Since:

OCMP 3.1

v_G723_1b

public static final Symbol v_G723_1b

Since:

OCMP 3.1

v_GSM

public static final Symbol v_GSM

Since:

OCMP 2.4

v_AMR_WB

public static final Symbol v_AMR_WB

Since:

Not supported

v_AMR

public static final Symbol v_AMR

Since:

OCMP 2.4

v_ALawPCM_48k

public static final Symbol v_ALawPCM_48k

Since:

OCMP 2.4

v_ALawPCM_64k

public static final Symbol v_ALawPCM_64k

Since:

OCMP 2.2

v_ALawPCM_88k

public static final Symbol v_ALawPCM_88k

Since:

Not supported

v_MuLawPCM_48k

public static final Symbol v_MuLawPCM_48k

Since:

Not supported

v_MuLawPCM_64k

public static final Symbol v_MuLawPCM_64k

Since:

OCMP 2.2

v_MuLawPCM_88k

public static final Symbol v_MuLawPCM_88k

Since:

Not supported

v_Linear8Bit_48k

public static final Symbol v_Linear8Bit_48k

Since:

Not supported

v_Linear8Bit_64k

public static final Symbol v_Linear8Bit_64k

Since:

Not supported

v_Linear8Bit_88k

public static final Symbol v_Linear8Bit_88k

Since:

Not supported

v_Linear16Bit_64k

public static final Symbol v_Linear16Bit_64k

Since:

OCMP 2.2

p_AMR_SDPelement

public static final Symbol p_AMR_SDPelement

Since:

OCMP 2.4

p_channels

public static final Symbol p_channels

p_ptime

public static final Symbol p_ptime

p_interleaving

public static final Symbol p_interleaving

p_robustsorting

public static final Symbol p_robustsorting

p_crc

public static final Symbol p_crc

p_maxptime

public static final Symbol p_maxptime

p_modechangeneighbor

public static final Symbol p_modechangeneighbor

p_modechangeperiod

public static final Symbol p_modechangeperiod

p_modeset

public static final Symbol p_modeset

p_octetalign

public static final Symbol p_octetalign