Media Profile: CMAF AAC Adaptive ('caaa')

"Audio profile that enables seamless AAC bitrate switching using the AAC Adaptive Media Profile as defined in CMAF. Supports mono and stereo channel configurations. Allows the usage of the AAC-LC, HE-AAC and HE-AACv2 profiles defined for MPEG-4 AAC."

For a Provisional media profile: CMAF AAC Adaptive ('caaa')

Name/company of designated proponent

Matteo Agnelli / Fraunhofer IIS [email protected]

Note: The Designated proponent is responsible for providing all deliverables necessary to meet the WAVE Media Profile requirements.

Market relevance

Meet at least one of the following conditions.

Codec with existing market relevance

1. Digital Media Service Providers (at least 3): NAMES

2. Digital Media Playback Devices available in the market (at least 5):

   2.1. Windows 10 (Surface Pro 4, Surface book, Surface Studio)

   2.2. Xbox (One, One S)

   2.3. iOS 10 (iPhone >=5, iPad (>=4 g), iPad Pro, iPad Mini)

   2.4. Safari/OS X (>=Yosemite)

   2.5. Android (>=4.0)

   2.6. Chromecast

Codec with WAVE membership support

1. Device manufacturers which are WAVE members (at least 2): NAMES

2. Content providers which are WAVE members (at least 2): NAMES

3. Other Wave members (at least total of 6 including the above members): NAMES

Note: A WAVE member company self-declares at the time of voting whether they wish to be considered a device manufacturer, a content provider or other.

Open standards

List the standard for the media profile:

• ISO/IEC 23000-19 Common Media Application Format

Note: To meet the WAVE Media Profile ‘open standard’ requirement, the media profile in question must have been developed following an open specification process which supports independent implementations, or is in the process of being published under such a process.

Normative references

List the normative reference of the media profile:

• ISO/IEC 23000-19 Information technology — Coding of audio-visual objects — Part 19: Common media application format (CMAF) for segmented media

Note: To meet the WAVE Media Profile ‘normative referenceable’ requirement, the organization where the media profile has been or will be published must meet the CTA normative reference policy and be at a level of technical maturity where only editorial changes are possible.

Test and conformance tools

Please provide a timeline for test content and conformance tools.

Test Content

Timeline:

• 08/2017: complete set of test vectors

Conformance Tools

Timeline:

• 10/2017: verification tool for checking CMAF AAC elementary bitstream constraints

Note 1: To become an approved WAVE Media Profile the test and conformance tools for content verification as well as test vectors for device verification must be available to WAVE.

Note 2: Media Profiles included in this specification for which no test and conformance material is provided are only published as Provisional WAVE Media Profiles and may be removed if no test and conformance material is provided before releasing a new version of this specification.

For an Approved media profile:

WAVE compatibility

1. Does the media profile specification include its ISOBMFF encapsulation? (Y/N): Y

   1.1. If the case of Y, which organization/spec? ISO/IEC 23000-19

   1.2. In the case of N,

   Do you have a preliminary draft to be included in a WAVE spec? (Y/N):
   
   When will the complete media profile specification be published by external org? DATE
   

2. Have you tested the media profiles with W3C MSE? (Y/N): Y

3. Any reported incompatibilities with W3C MSE? (Y/N): N