4 Codecs and media handling for MCVideo
26.2813GPPCodecs and media handlingMission Critical Video (MCVideo)Release 17TS
4.1 MCVideo client
4.1.1 Codec
MCVideo clients shall support the H.264 (AVC) codec as the mandatory universal interoperability codec.
MCVideo clients shall support video encoding and decoding of at least 240p. MCVideo clients may support video encoding and decoding up to 720p. More specifically:
– Transmitting capable MCVideo clients should support video encoding via H.264 (AVC) Constrained High Profile (CHP) Level 3.1 up to 1280×720@30fps.
– Receiving capable MCVideo clients should support video decoding via H.264 (AVC) Constrained High Profile (CHP) Level 3.1.
Transmitting capable MCVideo clients may also support variable rate video encoding from 10fps to 30fps and 240p to 1080p.
Receiving capable MCVideo clients may also support H.264 (AVC) Constrained High Profile (CHP) Level 4 with resolutions up to 1080p and framerate up to 30fps.
Based on operator / MCVideo service provider policy, the MCVideo service may optionally and additionally support the H.265 (HEVC) codec. If MCVideo services support the H.265 (HEVC) codec then MCVideo clients should additionally support encoding and decoding H.265 (HEVC). More specifically:
– Transmitting capable MCVideo clients may support video encoding via H.265 (HEVC) Main Profile, Main Tier, Level 3.1 up to 1280×720@30fps.
– Receiving capable MCVideo clients may support decoding of H.265 (HEVC) Main Profile, Main Tier, Level 4 with resolutions up to 1080p and framerate up to 30fps.
– Transmitting capable MCVideo clients may also support H.265 encoding in lossless mode.
– Receiving capable MCVideo clients may also support H.265 decoding in lossless mode.
4.1.2 Audio codec
In cases where the MCVideo service supports combined or separate handling of video and audio streams [3], MCVideo clients may support the same codecs as for MCPTT in accordance with TS 26.179 [6].
4.1.3 User plane protocol
MCVideo clients shall support both RTP [7], [9] and SRTP [8], [10] media transport.
Annex A (informative):
Change history
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Change history |
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Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
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2017-03 |
75 |
Version 14.0.0 |
14.0.0 |
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2018-06 |
80 |
Version 15.0.0 |
15.0.0 |
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2020-07 |
– |
– |
– |
– |
– |
Update to Rel-16 version (MCC) |
16.0.0 |
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2022-04 |
– |
– |
– |
– |
– |
Update to Rel-17 version (MCC) |
17.0.0 |