Subtitle encoding parameters
General parameters
Section titled “General parameters”| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitles. DVBTTML and DASHIFTTML are only valid when ITV export type is used. Closed caption CEA 608 is only valid when both IPTV export type and 25i/50p to 29.97i/59.94p frame rate conversion are used. |
| Blackout | This blackout configuration will be applied to the related audio/video/subtitles stream. |
Teletext subtitles
Section titled “Teletext subtitles”Teletext Pass-through
Section titled “Teletext Pass-through”| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitles, in this case, Pass-through. |
| Override subtitle language in the teletext descriptor | Override language information (ISO639 language triplet) of a selected subtitle. The subtitle selected by the magazine and page should be already present in the descriptor |
SDI Teletext Pass-through
Section titled “SDI Teletext Pass-through”Only available with SDI and SDI/IP input.
| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitles, in this case, Pass-through. |
| Adjust display height | Only available with DVB-Subtitles input subtitles. Adjust the display height for NTSC resolution. If not checked, optimized for PAL resolution. |
Teletext descriptor
Section titled “Teletext descriptor”| Parameter | Description |
|---|---|
| Language | Input language to encode in ISO 639 format (3letter code, lowercase). If not present in the input stream, the subtitles will not be transcoded. |
| Magazine | 1digit magazine number (18) used to identify the Teletext service. |
| Page | Page number (099) used to identify the Teletext service. |
| Field | Closed caption field as defined by the standard. Only one of each value is allowed. |
DVB-Subtitles with Teletext subtitles input
Section titled “DVB-Subtitles with Teletext subtitles input”| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitles, in this case, DVB-Subtitles. |
| Magazine | 1digit magazine number (18) used to identify the Teletext service. |
| Page | Page number (099) used to identify the Teletext service. |
DVB-TTML with Teletext subtitles input
Section titled “DVB-TTML with Teletext subtitles input”Only available with Teletext input subtitles and Internet TV export type.
| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitle, in this case, DVB-TTML. |
| Magazine | 1digit magazine number (18) used to identify the Teletext service. |
| Page | Page number (099) used to identify the Teletext service. |
| Profile | Specify the DVB TTML processor profile. |
| Purpose | Purpose of the subtitle service. |
| Suitable for TTS | Boolean value that indicates whether the subtitles are suitable for texttospeech (TTS). If the value is not set, this means unknown suitability. |
| Forced language | Overwrites the language of the audio track. If not set the original language is kept. Format: 3 alphanumeric characters |
DASH-IF-TTML with Teletext subtitles input
Section titled “DASH-IF-TTML with Teletext subtitles input”Only available with Teletext input subtitles and Internet TV export type.
| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitle, in this case, DASHIF-TTML. |
| Magazine | 1digit magazine number (18) used to identify the Teletext service. |
| Page | Page number (099) used to identify the Teletext service. |
| Profile | Specify the DASHIF TTML processor profile. |
| Role | Role of the subtitle service.
|
| Forced language | Overwrites the language of the audio track. If not set the original language is kept. Format: 3 alphanumeric characters |
DVB-TTML with CEA-608/CEA-708 Closed Captions input
Section titled “DVB-TTML with CEA-608/CEA-708 Closed Captions input”Only available with CEA-608/CEA-708 Closed Captions input subtitles and Internet TV export type.
| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitle, in this case, DVB-TTML. |
| Profile | Specify the DVB TTML processor profile. |
| Purpose | Purpose of the subtitle service. |
| Suitable for TTS | Boolean value that indicates whether the subtitles are suitable for texttospeech (TTS). If the value is not set, this means unknown suitability. |
| Forced language | Overwrites the language of the audio track. If not set the original language is kept. Format: 3 alphanumeric characters |
| Closed caption service | Specify the CEA608 or CEA708 service number. Possible values for CEA-608: cc_1, cc_2, cc_3 and cc_4. Possible values for CEA-708: service_1, service _2, service _3 and service _4 |
DASHIF-TTML with CEA-608/CEA-708 Closed Captions input
Section titled “DASHIF-TTML with CEA-608/CEA-708 Closed Captions input”Only available with CEA-608/CEA-708 Closed Captions input subtitles and Internet TV export type.
| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitle, in this case, DASHIF-TTML. |
| Profile | Specify the DASHIF TTML processor profile. |
| Role | Role of the subtitle service.
|
| Forced language | Overwrites the language of the audio track. If not set the original language is kept. Format: 3 alphanumeric characters |
| Closed caption service | Specify the CEA608 or CEA708 service number. Possible values for CEA-608: cc_1, cc_2, cc_3 and cc_4. Possible values for CEA-708: service_1, service _2, service _3 and service _4 |
Closed caption CEA 608
Section titled “Closed caption CEA 608”Only available with Teletext subtitle input, IPTV export type and 25i/50p to 29.97i/59.94p frame rate conversion.
| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitles, in this case, Closed caption CEA 608. |
| Magazine | 1digit magazine number (18) used to identify the Teletext service. |
| Page | Page number (099) used to identify the Teletext service. |
| Field | Closed caption field as defined by the standard. Only one of each value is allowed. |
DVB-Subtitles Pass-through
Section titled “DVB-Subtitles Pass-through”| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitles, in this case, Pass-through. |
| Forced language | Overwrites the language of the audio track. If not set the original language is kept.. |
| Adjust display height | Only available with DVB-Subtitles input subtitles. Adjust the display height for NTSC resolution. If not checked, optimized for PAL resolution. |
DVB-Subtitles with SCTE-27 subtitles input
Section titled “DVB-Subtitles with SCTE-27 subtitles input”| Parameter | Description |
|---|---|
| Codec | Select the codec used to convert the subtitles, in this case, DVB-Subtitles. |
| Forced language | Overwrites the language of the audio track. If not set the original language is kept.. |
DVB-Teletext with ARIB B24 subtitles input
Section titled “DVB-Teletext with ARIB B24 subtitles input”You should define the following parameters:
- Codec used to convert the subtitle, in this case, DVB-Teletext.|
- Selected stream: Selection of the stream to encode in the input subtitle. One subtitle encoding section must be defined per language.
- Teletext encoding: Configuration of the encoding of the teletext stream.
- Teletext descriptor: Configuration of the descriptor of the teletext stream.
Selected stream
Section titled “Selected stream”| Parameter | Description |
|---|---|
| Language | Input language to encode in ISO 639 format (3letter code, lowercase). If not present in the input stream, the subtitles will not be transcoded. |
Teletext encoding
Section titled “Teletext encoding”| Parameter | Description |
|---|---|
| Magazine | 1digit magazine number (18) used to identify the Teletext service. |
| Page | Page number (099) used to identify the Teletext service. |
Teletext descriptor
Section titled “Teletext descriptor”| Parameter | Description |
|---|---|
| Language | Input language to encode in ISO 639 format (3letter code, lowercase). If not present in the input stream, the subtitles will not be transcoded. |
| Magazine | 1digit magazine number (18) used to identify the Teletext service. |
| Page | Page number (099) used to identify the Teletext service. |
| Field | Closed caption field as defined by the standard. Only one of each value is allowed. |
Related information
Configure subtitle encoding
Subtitle burn-in configuration parameters
Section titled “Subtitle burn-in configuration parameters”| Parameter | Description |
|---|---|
| Burn-in | Configuration of the subtitle to be used for burnin in the video. Format available for burnin: DVBsubtitles, Teletext. |
Related information
Configure subtitle burn-in