Video codec characteristics for 5G-based services and applications
The present technical report documents relevant interoperability requirements, performance characteristics and implementation constraints of video codecs in 5G services, and characterizes video codecs, in particular 3GPP defined codecs H.264/AVC and H.265/HEVC in order to have a benchmark for the addition of potential future video codecs. For this purpose, the document:
- Collects a summary of the video coding capabilities in 3GPP services.
- Collects a subset of relevant scenarios for video codecs in 5G-based services and applications, including video formats (resolution, frame rates, colour space, etc.), encoding and decoding requirements, adaptive streaming requirements.
- Collects relevant and exemplary test conditions and material for such scenarios, including test sequences.
- Defines performance metrics for such scenarios with focus on objective performance metrics.
- Collects relevant interoperability functionalities and enabling elements for video codecs in different 5G services such as MTSI and Telepresence (i.e. RTP based conversational communications), or 5G media streaming (e.g. based on DASH/CMAF) supporting the identified scenarios.
- Collects relevant criteria and key performance indicators for the integration of video codecs in 5G processing platforms, taking into account factors such as encoding and decoding complexity in the context of the defined scenarios.
- Provides anchors for the existing codecs H.264/AVC and H.265/HEVC in the context of the above scenarios and document the findings in a consistent manner and characterizes H.265/HEVC against H.264/AVC
- Provides initial information on EVC video codec developed in ISO/IEC SC29 WG 4 and H.266/VVC video codec developed in JVET (ITU-T SG16 Q6 and ISO/IEC SC29 WG 5) in the context of the above scenarios, including test streams and characterization results.
- Provides initial information AV1 video codec developed by the Alliance for Open Media in the context of the above scenarios, including test streams and characterization results.