acbegen
commented
3 years ago There are several issues regarding what is supported for playback in a number of interesting scenarios. For example, period misalignments during the ad breaks, gaps in media timeline, varying level of support for subtitle formats. Different players (browsers, consoles, smart TVs, Roku, etc.) behave differently (or fail differently) when handling these cases. MSE based players can be made to deal with these as smoothly as possible but native players can rarely be fixed. DRM and multi-key is a different story and also support for it varies quite significantly among the platforms.
Is there any benefit in documenting the peculiarities of different platforms? These include support for codecs/profiles (audio and video), subtitle formats, DRMs, handling of gaps, multi-period support for DASH playback, support for low-latency playback, supported HLS version/features, support for adaptive playback or even things such as limits on the min/max playback buffer sizes (if any). `` Not only the TV models from different years (of the same vendor) but also the models of the same year might show significant differences when it comes to native player features/support.
It is impossible to test every brand and model for every feature since this would require access to: 1) A great number of test assets 2) A great deal of devices (with different firmwares, etc.) 3) And a lot of time
However, if a “live” document/table existed documenting as many devices and features as possible (maybe thru crowdsourcing), it could be a tremendous service to the community.
Is this something of interest to CTA-WAVE? How does this related to other activities within CTA or WAVE? DPCTF is probably the closest TF in this case. Test assets, a test harness and a good illustration technique are the key components here.
Just throwing the idea in case anybody else has views on this.
wilaw
JohnRiv
technogeek00
jpiesing
WAVE is holding a workshop on Monday, May 3rd from 07:00-11:00 PT to cover some of the decision points which require a deeper discussion than the regular TF meetings.
Use this issue tracker to contribute discussion items. These will be collated by the TWG Chair before the meeting and converted in to a presentation deck to drive the agenda for the day.
For each item, please suggest a title, and provide some background text as well as the decision to made or call-to-action. Also state which TF you feel the work falls under.