Standard Dynamic Range (SDR)
Release: 1.6 | July 31, 2023
PrintThe purpose of this document is to facilitate and define Warner Bros. Discovery's requirements for the successful acquisition of Standard Dynamic Range (SDR) Original Programming content. This specification establishes the composition and technical requirements for all aspects of the delivery to which content providers must comply to complete the content acquisition process.
This specification is not intended to provide guidance on delivering High Dynamic Range, Stereoscopic 3D or multilanguage component content to Warner Bros. Discovery. For additional Contribution Specifications covering these deliveries, reach out to Warner Bros. Discovery Content Acquisitions.
Quality Requirements
It is Warner Bros. Discovery’s intent to acquire the highest quality masters that preserve the original artistic intent while providing a premium viewing experience to the consumer. To meet Warner Bros. Discovery's perceptual and measured quality standards content delivered must conform to the specifications outlined in this document. In preparing content for delivery and to preserve the highest quality it is strongly preferred that all unnecessary transformations or processing that results in the degradation to the master quality be avoided.
Please contact Warner Bros. Discovery Content Acquisitions if your highest quality digital master does not meet the quality standards defined in this specification.
Photosensitive Epilepsy Testing
Photosensitive Epilepsy (PSE) impacts a viewer population who may be prone to seizures caused by flashing images on a screen. Warner Bros. Discovery requires that all content follows the guidance for the reduction of photosensitive epilepsy as defined in ITU-R BT.1702-2. Warner Bros. Discovery strongly recommends that providers use a “Harding Flash & Pattern Analyzer” on all content prior to delivery to ensure it meets these recommendations. Content found to be outside these test parameters will be rejected and will require redelivery.
Expected Deliverables
A complete and valid delivery shall include:
- Master Media File
- Descriptive Metadata
- Images / Artwork
- Closed Captions/Subtitles
- Descriptive Video/Audio Description (DVS) Audio Track
- Full and Forced subtitles (as required by region)
Master Technical Specifications
- Content must be delivered in the Native Frame Rate and Original Aspect Ratio.
- The frame rate must be both continuous and constant throughout the duration of the program.
- Ad break duration should be ~0.5 seconds but must not exceed 1 second from the end of fade-out to beginning of fade-in.
- Metadata in the file header must accurately indicate:
- Scan Type
- Scan Order
- Display Aspect Ratio
Master File Format
Warner Bros. Discovery currently supports two options for content delivery: JPEG 2000 and ProRes 422 HQ.
Option 1: JPEG2000 MXF OP1a
JPEG 2000 Qualification
For providers wishing to deliver JPEG 2000 MXF OP1a masters, an on-boarding output qualification process is required before any content can be delivered. Please reach out to your Warner Bros. Discovery contact to initiate the qualification process.
Codec | JPEG 2000 |
---|---|
Container | MXF OP1a (Conforming to SMPTE ST 378: 2004) |
Frame Rate | Original/Native | Progressive: 23.976, 25, 29.97 | Interlaced: 25, 29.97 |
Scan Type | Native (Progressive or Interlaced) |
Aspect Ratio | Original/Native |
Resolution | HD (1920 x1080) | UHD (3840 x 2160) |
Max Bit Rate | HD 250Mbps | UHD 800Mbps (BCP Level 5) |
Rate Control | Variable Bit Rate (VBR) |
Chroma Bit Depth | 10-bit |
Color Coding/Space | Y'CbCr 4:2:2/Legal Range |
Color Primaries* | ITU-R BT.709 |
Transfer Characteristics* | ITU-R BT.709 |
Matrix Coefficients* | ITU-R BT.709 |
Codec | Linear PCM |
---|---|
Format | Broadcast Wave Format (BWF) |
Sample Bit Depth | 24-bit |
Sample Rate | 48kHz |
Parameter Name | Value (Interlaced) | Value (Progressive) |
---|---|---|
Creslengths | 1042709 | 1302083 |
Creversible | No | No |
Slope | 49150 | 48800 |
Cband_weights:C0 | 0.0901, 0.8378, 0.2758, 0.7018,1, 0.8378, 1 | 0.0901, 0.2758, 0.2758, 0.7018, 0.8378, 0.8378, 1 |
Cband_weights:C1 | 0.0863, 0.2564, 0.2564, 0.2564, 0.4691, 0.4691, 0.4691, 0.6523, 0.6523, 0.6523, 0.7797, 0. 7797, 0.7797, 1 | 0.0863, 0.0863, 0.2564, 0.2564, 0.2564, 0.4691, 0.4691, 0.4691, 0.6523, 0.6523, 0.6523, 0.7797, 0.7797, 0.7797, 1 |
Cband_weights:C2 | 0.1835, 0.4130, 0.4130, 0.4130, 0.6464, 0.6464, 0.6464, 0.8254, 0.8254, 0.8254, 0.9424, 0.9424, 0.9424, 1 | 0.1835, 0.1835, 0.4130, 0.4130, 0.4130, 0.6464, 0.6464, 0.6464, 0.8254, 0.8254, 0.8254, 0.9424, 0 .9424, 0.9424, 1 |
Cblk | 32,32 | 64,64 |
Clayer | 1 | 1 |
Clevel | 5 | 5 |
Corder | CPRL | CPRL |
Cprecincts | 256,256, 256,256, 256,256, 256,256, 256,256,128,128 | 256,256, 256,256, 256,256, 256,256, 256,256, 128,128 |
ORGtparts | C | C |
ORGgen_plt | Yes | Yes |
ORGgen_tlm | 3 | 3 |
Qstep | 0.0009765625 | 0.0009765625 |
Sprofile | 2 | 2 |
Option 2: ProResHQ
Codec | ProRes 422 HQ |
---|---|
Container | QuickTime MOV |
Frame Rate | Original/Native | Progressive: 23.976, 25, 29.97 | Interlaced: 25, 29.97 |
Scan Type | Native (Progressive or Interlaced) |
Aspect Ratio | Original/Native |
Resolution | HD (1920 x1080) | UHD (3840 x 2160) |
Max Bit Rate | HD ~ 176 to 220Mbps | UHD ~ 796 to 880Mbps |
Rate Control | Variable Bit Rate (VBR) |
Chroma Bit Depth | 10-bit |
Color Coding/Space | Y'CbCr 4:2:2/Legal Range |
Color Primaries* | ITU-R BT.709 |
Transfer Characteristics* | ITU-R BT.709 |
Matrix Coefficients* | ITU-R BT.709 |
Codec | Linear PCM |
---|---|
Sample Bit Depth | 24-bit |
Sample Rate | 48kHz |
Master Composition
All content must deliver free of any on-screen identifiers (such as overlay branding, burn-ins, crawls) and/or any advertising/promotional messaging (such as bumpers, links, end cards). In addition, Warner Bros. Discovery will not accept episodic content that includes any logos, bugs, bumpers or stings before or after the program.
Season and/or episode recaps should not be stitched to the beginning of content and must be provided as separate video deliverables to the HBO Max Marketing team.
All content must conform to the following composition:
10" Slate / Silence | 30" Black / Silence | Program @ 01:00:00:00 | 30" Black / Silence | Textless | 5" Black / Silence |
If there are multiple textless segments, insert 5 seconds of black/silence in between each segment. If the content requires no textless segments, then the composition shall end after the Program. No additional black should be appended.
Slate
First frame of video must begin with a visual slate. Slate shall contain:
Episode No (if applicable):
Production Company:
Program Run Time:
Aspect Ratio:
Production Audio: [Language/Configurations]
Textless Included
Audio Technical Specifications
- Each Soundfield group must be arranged into a single track. (e.g. 5.1 would be 1 track with 6 channels)
- Stereo labels must match the method used to create the Soundfield: LR for stereo mix, LtRt for matrixed downmix.
- All audio channels must be labeled in the file metadata, where appropriate for each file format.
- All audio tracks must conform (be synchronous) with video and have the same duration.
- Where both exist, a near field mix is preferred over a Theatrical mix.
- Content with 5.1 surround must be provided with a separate, corresponding 2.0 track.
- Warner Bros. Discovery will accept discrete mono essence tracks, however, single soundfield is strongly preferred.
- In addition to Stereo, 5.1 surround, and Music & Effects deliveries for the Original Production Language, the following must also be delivered, according to regional/contractual obligations (refer to the Audio Track Layout for more):
- Stereo for Additional Audio Language(s).
- 5.1 for Additional Audio Language(s).
- Music and Effects.
Audio loudness
Content must conform to either ITU-1770-3 (for US content deliveries) or EBU R 128-2020 (for content deliveries outside of the US).
For ITU-1770-3, target audio loudness must conform with:
- Target loudness for 2 Channel Program Audio (e.g. L,R) must be ∑ -24 LKFS +/- 2 dB
- Target loudness for 5.1 Channel Program Audio must be ∑ -24 LKFS +/- 2 dB (minus LFE)
- True Peak does not exceed -2 dBTP (dynamics processing should be applied as needed)
For EBU R 128-2020, target audio loudness must conform with:
- Program Loudness Level must be normalized to a Target Level of −23.0 LUFS ±1db.
- True Peak Level of a program must not exceed −1 dBTP.
Audio Track Layout
- Track order below is preferred but not mandatory as it will vary depending on track availability. Please exclude track(s) if not available, do not fill with silent or duplicate tracks.
- If the Original Production Language is not English, then an English dub track is required, where available (see Dubbing Credits/Cards for more).
- The total channel count must not exceed 32.
Descriptive Video/Audio Description
Warner Bros. Discovery requires the delivery of Descriptive Video / Audio Description tracks, where pre-existing, to be delivered in the following manner:
- Descriptive Video/Audio Description must be mixed with primary stereo audio.
- Descriptive Video/Audio Description must conform to the primary program video.
- Descriptive Video/Audio Description must adhere to Master Technical Specifications.
Language/Type | Soundfield | Track | Channel | |
---|---|---|---|---|
Original Production Language | Stereo | Track 1 | Channel 1 Channel 2 | L/Lt R/Rt |
Original Production Language | 5.1 Surround | Track 2 | Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 | L R C LFE Ls Rs |
Additional Audio Language(s) (As required by region) | Stereo | Track 3 | Channel 1 Channel 2 | L/Lt R/Rt |
Additional Audio Language(s) (As required by region) | 5.1 Surround | Track 4 | Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 | L R C LFE Ls Rs |
Music & Effects | Stereo | Track 5 | Channel 1 Channel 2 | L/Lt R/Rt |
Descriptive Video/Audio Description | Stereo | Track 6 | Channel 1 Channel 2 | L/Lt R/Rt |
Dialogue | Stereo | Track 7 | Channel 1 Channel 2 | L/Lt R/Rt |
Sound Effects | Stereo | Track 8 | Channel 1 Channel 2 | L/Lt R/Rt |
Music | Stereo | Track 9 | Channel 1 Channel 2 | L/Lt R/Rt |
Content Delivery Filename Convention
Guidelines
- Filename must not include spaces or special characters, e.g. ~ ! @ # $ % ^ & * ( ) ` ; < > ? , [ ] { } ’ ” |. With the exception of – (dash) and _ (underscore).
- Underscores must be used to separate categories within filename.
- All filenames must contain a file type extension and must be lowercase. Uppercase extension will result in an invalid content delivery.
- Filename category should use CamelCase: multiple words joined together with the first letter of each word capitalized, e.g. Search Party -> SearchParty.
Syntax
ProgramTitle_EpNo_EditType_Language_MediaType_RevNo.ext
Category | Definition | Required/ As Applicable |
---|---|---|
ProgramTitle | Is the tile of the program | Required |
EpNo | Is expressed as a concatenation of season and episode number in season. Season is indicated by a single digit (e.g. 2) and episode number by two digits (e.g. 01) Using this convention the example would be 201 | As Applicable |
Edit Type | Is the edit type of the program (for example: textless, consolidated, etc.) | As Applicable |
Language | Is the primary language of the media file | Required |
Media Type | Is the type of media file delivered (video, audio, captions, subtitles, etc.) | Required |
RevNo | Is the revision number, added only when necessary and preceded by ‘REV’ | As Applicable |
Example
Sopranos_201_Master_Eng_Video.mxf
Godfather_ Eng_Captions.xml
Content Delivery Method
There are two supported methods for content delivery:
- User initiated upload via Warner Bros. Discovery secure delivery Portal.
- High volume upload via Warner Bros. Discovery Automated Content Delivery (ACD).
All providers must be on-boarded to one of the supported delivery methods prior to delivering any content to Warner Bros. Discovery.
Supplemental Assets
Asset Imagery
Content artwork and imagery must be delivered for all content. For more information on the images required, see Image Specifications.
Title Metadata
Descriptive metadata must be provided prior to delivering of any content to Warner Bros. Discovery. For more information on the metadata required, see Descriptive Metadata Template.
Release History
v1.6 July 31, 2023
- Replaced "LtRt" with "L,R" for an example in the audio loudness specs
v1.5 May 17, 2023
- Broke "Color Primaries/Matrix" out into 3 different fields and added a note
v1.4 September 6, 2022
- Changed "WarnerMedia" to "Warner Bros. Discovery"
v1.3 June 14, 2022
- Removed Audio Technical Specification #7 - "Each soundfield group should be arrange into a single track.". This is already specified in Audio Technical Specification #1
v1.2 May 6, 2022
- Updated WMContentAcquistions email address
v1.1 May 14, 2021
- Moved the DVS section from the Component Audio page to the Audio Track Layout section
- Added to Audio Track Layout (32 limit on channel count)
- Added to Audio Technical Specifications