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Work item:
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P.1204 (ex P.NATS-ph2)
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Subject/title:
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Video quality assessment of streaming services over reliable transport for resolutions up to 4K
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Status:
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Approved on 2020-01-13
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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-
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Liaison:
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N/A
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Supporting members:
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Deutsche Telekom, Ericsson, Huawei, Netscout, NTT, Opticom, Rohde & Schwarz
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Summary:
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Recommendation ITU-T P.1204 provides the introductory document for a set of documents that describe model algorithms for monitoring the video quality for streaming using reliable transport (e.g. HTTP-based adaptive streaming over TCP, QUIC). The standard comprises different variants of models for sequence-related (between 5 and 10 sec.) and per-1-second video-quality estimation. The variants differ in the type of input information they use: Bitstream-based, pixel-based, and hybrid (using both bitstream and pixel information).
In principle, the per-1-second outputs of these video-quality models can be used together with an audio-quality model for integration into audiovisual quality and, together with information about initial loading delay and media playout stalling events, further into a final per-session model output, an estimate of integral per-session quality (see e.g. ITU-T Recs. P.1203, P.1203.2, P.1203.3).
The respective ITU-T work item has formerly been referred to as "P.NATS Phase 2", and was conducted in collaboration between ITU-T Study Group 12 and the Video Quality Experts Group (VQEG).
The structure of the set of recommendations reflects the different functionality of modules described in each document:
-ITU-T P.1204: Introductory document (this Recommendation)
-DRAFT P.1204.1: Video quality assessment of streaming services over reliable transport for resolutions up to 4K with access to transport information (under development)
-DRAFT P.1204.2: Video quality assessment of streaming services over reliable transport for resolutions up to 4K with access to video frame information (under development)
-ITU-T P.1204.3: Video quality assessment of streaming services over reliable transport for resolutions up to 4K with access to full bitstream information
-ITU-T P.1204.4: Video quality assessment of streaming services over reliable transport for resolutions up to 4K with access to full and reduced reference pixel information
-ITU-T P.1204.5: Video quality assessment of streaming services over reliable transport for resolutions up to 4K with access to transport and received pixel information
The ITU-T P.1204-series of Recommendations addresses three application areas, which are respectively indicated in the module-related P.1204.1 (draft, under development), P.1204.2 (draft, under development), and Recommendations ITU-T P.1204.3, ITU-T P.1204.4, ITU-T P.1204.5:
-Large-screen presentation as with fixed-network video streaming
-Mobile streaming on handheld devices such as smartphones
-Presentation on tablet-type devices
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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First registration in the WP:
2017-02-02 11:31:57
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Last update:
2020-01-22 18:02:06
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