The mcac encoder supports the following configuration properties:
| Property | Type | Description |
|---|
BitRate | integer | 6000, 7000, 8000, 10000, 12000, 14000, 16000, 20000, 24000, 28000, 32000, 40000, 48000, 56000, 64000, 80000, 96000, 112000, 128000, 160000, 192000, 224000, 256000, 320000, 384000, 448000, 512000, 640000, 768000, 896000, 1024000 |
Profile | integer | 2 Low Complexity
5 High Efficiency V1
29 High Efficiency V2 (Parametric Stereo) |
MpegVersion | integer | 0 MPEG-2
1 MPEG-4 |
The channel configuration is determined by the number of audio channels as folllows:
| Channels | Channel Configuration |
|---|
1 | C |
2 | L R |
3 | C L R |
4 | C L R Cs |
5 | C L R Ls Rs |
6 | C L R Ls Rs LFE |
7 | C L R Ls Rs Cs LFE |
8 | C L R Lsd Rsd Ls Rs LFE |
The High Efficiency V1 profile allows the following BitRate values:
| Channels | SampleRate | HEv1 BitRate |
|---|
1 | 16000 - 24000
32000
44100 - 48000 | 10000 - 40000
16000 - 56000
16000 - 64000 |
2 | 16000
22050 - 24000
32000
44100 - 48000 | 16000 - 56000
16000 - 64000
24000 - 80000
32000 - 96000 |
3 | 16000
22050 - 24000
32000
44100 - 48000 | 28000 - 80000
28000 - 96000
48000 - 128000
56000 - 128000 |
4 | 16000
22050 - 24000
32000
44100 - 48000 | 40000 - 112000
40000 - 128000
64000 - 160000
80000 - 192000 |
5 | 16000
22050 - 24000
32000
44100 - 48000 | 48000 - 128000
48000 - 160000
80000 - 192000
96000 - 224000 |
6 | 16000
22050 - 24000
32000
44100 - 48000 | 48000 - 128000
48000 - 160000
80000 - 192000
96000 - 224000 |
The High Efficiency V2 profile allows the following BitRate values:
| Channels | SampleRate | HEv2 BitRate |
|---|
2 | 16000
22050 - 24000
32000
44100 - 48000 | 10000 - 40000
10000 - 48000
16000 - 56000
16000 - 64000 |
The Dolby Digital ec3 encoder supports the following configuration properties:
| Property | Type | Description |
|---|
| OutputFormat | string | Four character code that specifies the output audio stream format:
ac-3 Dolby Digital
ec-3 Dolby Digital Plus |
| AnalogToDigitalConverterType | integer | 0 Standard
1 High Definition |
AudioCodingMode | integer | 0 1+1
1 1/0 C
2 2/0 L R
3 3/0 L C R
4 2/1 L R Cs
5 3/1 L C R Cs
6 2/2 L R Ls Rs
7 3/2 L C R Ls Rs
21 3/4 L C R Ls Rs Lrs Rrs |
BitRate | integer | 32000 40000 48000 56000 64000 80000 96000 112000 128000 160000 192000 224000
256000 320000 384000
448000 512000 576000 640000 |
BitstreamMode | integer | 0 Complete Main
1 Music and Effects
2 Visually Impaired
3 Hearing Impaired
4 Dialogue
5 Commentary
6 Emergency
7 Voice Over |
CopyrightProtected | boolean | |
DialogNormalization | integer | Value in the range 1 to 31 representing a dialog normalization level between -1 and -31 dBFS. |
DolbySurroundMode | integer | 0 not indicated
1 disabled
2 enabled |
DrcLineModeProfile | integer | 0 none
1 film standard compression
2 film light compression
3 music standard compression
4 music light compression
5 speech compression |
DrcRfModeProfile | integer | 0 none
1 film standard compression
2 film light compression
3 music standard compression
4 music light compression
5 speech compression |
EnableLfeLowPassFilter | boolean | Enables or disables the LFE low pass filter. |
EnableLowFrequencyEffects | boolean | Enables the LFE channel. |
LoRoCenterMixLevel | integer | Specifies the center channel level for a conventional (LoRo) stereo down mix:
0 1.414 (+3.0 dB)
1 1.189 (+1.5 dB)
2 1.000 (0.0 dB)
3 0.841 (-1.5 dB)
4 0.707 (-3.0 dB)
5 0.595 (-4.5 dB)
6 0.500 (-6.0 dB)
7 0.000 (-inf dB) |
LoRoSurroundMixLevel | integer | Specifies the surround channel level for a conventional (LoRo) stereo down mix. |
LtRtCenterMixLevel | integer | Specifies the center channel level for a matrix (LtRt) stereo down mix. |
LtRtSurroundMixLevel | integer | Specifies the surround channel level for a matrix (LtRt) stereo down mix. |
MixingLevel | integer | Audio production mixing level (80 - 111). |
NinetyDegreePhaseShift | boolean | |
OriginalBitstream | boolean | |
RoomType | integer | 0 not indicated
1 large room
2 small room |
SuroundExMode | integer | 0 not indicated
1 disabled
2 enabled |
ThreeDecibelAttenuation | boolean | |
If not specified the channel configuration is determined by the number of audio channels as follows:
| Channels | AudioCodingMode | EnableLowFrequencyEffects |
|---|
1 | 1 1/0 C | false |
2 | 2 2/0 L R | false |
3 | 3 3/0 L C R | false |
4 | 6 2/2 L R Ls Rs | false |
5 | 7 3/2 L C R Ls Rs | false |
6 | 7 3/2 L C R Ls Rs | true |
7 | 21 3/4 L C R Ls Rs Lrs Rrs | false |
8 | 21 3/4 L C R Ls Rs Lrs Rrs | true |
The following BitRate values are supported:
| AudioCodingMode | Minimum BitRate | Default BitRate |
|---|
0 1+1 | 96000 | 192000 |
1 1/0 C | 56000 | 96000 |
2 2/0 L R | 96000 | 192000 |
3 3/0 L C R | 160000 | 256000 |
4 2/1 L R Cs | 160000 | 256000 |
5 3/1 L C R Cs | 192000 | 320000 |
6 2/2 L R Ls Rs | 192000 | 320000 |
7 3/2 L C R Ls Rs | 224000 | 384000 |
21 3/4 L C R Ls Rs Lrs Rrs | 256000 | 448000 |
The dlbe encoder supports the following configuration properties:
| Property | Type | Description |
|---|
OutputFormat | string | sowt 16 Bit Little Endian
42ni 24 Bit Little Endian
23ni 32 Bit Little Endian |
FrameRate | integer | Specifies the video frame rate:
0 Not specified
1 23.976
2 24
3 25
4 29.97
5 30
6 50
7 59.94
8 60 |
ProgramConfiguration | integer | Specifies the program configuration. |
BitDepth | integer | Specifies the output bit depth, either 16 or 20 bits.
Note that for 16 precision the program configuration is limited to a total of 6 channels. |
KeyPresent | boolean | Indicates whether bitstream keys are present. |
Timecode | string | Starting time code. |
EncoderDelay | integer | |
Program | array | Dolby digital metadata for each program. See program metadata. |
| Value | Programs | Channels |
|---|
| 0 | 5.1 + 2 | L1 C1 Ls1 L2 R1 LFE1 Rs1 R2 |
| 1 | 5.1 + 1 + 1 | L1 C1 Ls1 C2 R1 LFE1 Rs1 C3 |
| 2 | 4 + 4 | L1 C1 L2 C2 R1 Cs1 R2 Cs2 |
| 3 | 4 + 2 + 2 | L1 C1 L2 L3 R1 Cs1 R2 R2 |
| 4 | 4 + 2 + 1 + 1 | L1 C1 L2 C3 R1 Cs1 R2 C4 |
| 5 | 4 + 1 + 1 + 1 + 1 | L1 C1 C2 C4 R1 Cs1 C3 C5 |
| 6 | 2 + 2 + 2 + 2 | L1 L2 L3 L4 R1 R2 R3 R4 |
| 7 | 2 + 2 + 2 + 1 + 1 | L1 L2 L3 C4 R1 R2 R3 C5 |
| 8 | 2 + 2 + 1 + 1 + 1 + 1 | L1 L2 C3 C5 R1 R2 C4 C6 |
| 9 | 2 + 1 + 1 + 1 + 1 + 1 + 1 | L1 C2 C4 C6 R1 C3 C5 C7 |
| 10 | 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 | C1 C3 C5 C7 C2 C4 C6 C8 |
| 11 | 5.1 | L1 C1 Ls1 R1 LFE1 Rs1 |
| 12 | 4 + 2 | L1 C1 L2 R1 Cs1 R2 |
| 13 | 4 + 1 + 1 | L1 C1 C2 R1 Cs1 C3 |
| 14 | 2 + 2 + 2 | L1 L2 L3 R1 R2 R3 |
| 15 | 2 + 2 + 1 + 1 | L1 L2 C3 R1 R2 C3 |
| 16 | 2 + 1 + 1 + 1 + 1 | L1 C2 C4 R1 C3 C5 |
| 17 | 1 + 1 + 1 + 1 + 1 + 1 | C1 C3 C5 C2 C4 C6 |
| 18 | 4 | L1 C1 R1 Cs1 |
| 19 | 2 + 2 | L1 L2 R1 R2 |
| 20 | 2 + 1 + 1 | L1 C2 R1 C3 |
| 21 | 1 + 1 + 1 + 1 | C1 C3 C2 C4 |
| 22 | 7.1 | L1 C1 Ls1 Lrs1 R1 LFE1 Rs1 Rrs1 |
| 23 | 7.1 Screen | L1 C1 Ls1 Lc1 R1 LFE1 Rs1 Rc1 |
The following Dolby Digital metadata properties can be provided for each program:
| Property | Type | Description |
|---|
Description | string | Program description, maximum 32 characters. |
| AnalogToDigitalConverterType | integer | 0 Standard
1 High Definition |
AudioCodingMode | integer | 1 1/0 C
2 2/0 L R
3 3/0 L C R
4 2/1 L R Cs
5 3/1 L C R Cs
6 2/2 L R Ls Rs
7 3/2 L C R Ls Rs |
BitstreamMode | integer | 0 Complete Main
1 Music and Effects
2 Visually Impaired
3 Hearing Impaired
4 Dialogue
5 Commentary
6 Emergency
7 Voice Over |
CopyrightProtected | boolean | |
DialogNormalization | integer | Value in the range 1 to 31 representing a dialog normalization level between -1 and -31 dBFS. |
DolbySurroundMode | integer | 0 not indicated
1 disabled
2 enabled |
DrcLineModeProfile | integer | 0 none
1 film standard compression
2 film light compression
3 music standard compression
4 music light compression
5 speech compression |
DrcRfModeProfile | integer | 0 none
1 film standard compression
2 film light compression
3 music standard compression
4 music light compression
5 speech compression |
EnableHighPassFilter | boolean | Enables or disables the DC high pass filter. |
EnableLfeLowPassFilter | boolean | Enables or disables the LFE low pass filter. |
EnableLowFrequencyEffects | boolean | Enables or disables the LFE channel. |
EnableLowPassFilter | boolean | Enables or disables the bandwidth limiting low pass filter. |
LoRoCenterMixLevel | integer | Specifies the center channel level for a conventional (LoRo) stereo down mix:
0 1.414 (+3.0 dB)
1 1.189 (+1.5 dB)
2 1.000 (0.0 dB)
3 0.841 (-1.5 dB)
4 0.707 (-3.0 dB)
5 0.595 (-4.5 dB)
6 0.500 (-6.0 dB)
7 0.000 (-inf dB) |
LoRoSurroundMixLevel | integer | Specifies the surround channel level for a conventional (LoRo) stereo down mix. |
LtRtCenterMixLevel | integer | Specifies the center channel level for a matrix (LtRt) stereo down mix. |
LtRtSurroundMixLevel | integer | Specifies the surround channel level for a matrix (LtRt) stereo down mix. |
MixingLevel | integer | Audio production mixing level (80 - 111). |
NinetyDegreePhaseShift | boolean | Enables or disables the surround channel 90 degree phase shift filter. |
OriginalBitstream | boolean | |
PreferredDownmixMode | integer | 0 not indicated
1 Lt/Rt downmix
2 Lo/Ro downmix |
RoomType | integer | Audio production room type:
0 not indicated
1 large room
2 small room |
SuroundExMode | integer | 0 not indicated
1 disabled
2 enabled |
ThreeDecibelAttenuation | boolean | Enables or disables the surround channel 3dB attenuator. |
The mc2a encoder supports the following configuration properties:
| Property | Type | Description |
|---|
BitRate | integer | 32000 48000 56000 64000 80000 96000 112000 128000 160000 192000 224000 256000 288000 320000 352000 384000 416000 448000 |
Layer | integer | 3 Layer 1
2 Layer 2 |
Version | integer | 1 MPEG-1
0 MPEG-2 |
The following BitRate values are supported:
| Channels | Layer 1 BitRate | Layer 2 BitRate |
|---|
| 1 | 32000 96000 | 32000 48000 56000 80000 |
| 2 | | 224000 256000 320000 384000 |
| Any | 64000 128000 160000 192000 224000 256000 288000 320000 352000 384000 416000 448000 | 64000 96000 112000 128000 160000 192000 |
