H.264

Encountered a capability negotiation issue when conferencing with a HUAWEI terminal. It happened in a dual stream(H.239) capability negotiation. Environments: 1. According to the H.245 TCS, both terminal have 1080P 60 fps capability. 2. The band width setting was extreme low. 3. HUAWEI sent a OLC request with 4CIF H.264 […]

[H.323] TCS negotiation rule of HUAWEI

2015/01/19 in Technical tagged H.264 / H.323 / TCS by Jacky Wei

Encounter a H.264 video capability issue while conferencing with HUAWEI TEx0 MT. Both MTs(H800 and TEx0) have 1080P 60 fps H.264 video capability, but HUAWEI MT will send an OLC request with 1080P 30 fps when starting open the logical channel, while conferencing with Cisco MTs, this issue doesn’t happen. […]

An issue about HUAWEI TEx0 H.264 video capability calculating

2015/01/08 in Technical tagged H.264 / H.323 / HUAWEI / MaxFS / MaxMBPS / TCS / TEx0 by Jacky Wei

video resolution table — A sample packet of H.245 terminalCapabilitySet Step 1: LEVEL(unsignedMin: 78 – Level 3.2) H.264 Level: 3.2, we can find out the max capability of level 3.2 by referring to the H.264 level limitation table.

H.323 capability calculation for H.264 video

2014/07/22 in Technical tagged H.264 / H.323 by Jacky Wei

本文主要描述了KDV1000终端和Polycom会议终端对通时Polycom设备浏览KDV1000的High Profile码流绿屏问题。

A bug of H.264 video from KDV1000 can not be ...

2014/05/06 in TechTip中文 tagged CABAC / H.264 by Jacky Wei

Great news from Cisco: Cisco will open open-source their H.264 codec, and make H.264 free for use in WebRTC. Here are the details, which came from blogs of Cisco by Rowan Trollope: ——————————————— When it comes to making collaboration technology such as high-definition video open and broadly available, it’s clear […]