html5 video support enabled by default

[totaam]

Hopefully we can find at least one browser / OS combination that works?
Or figure out the problem with broadway? (RangeError: Source is too large)

Original tickets: Xpra-org/xpra#1341, Xpra-org/xpra#1424

[totaam]

Looks like we may also need to special case phones and tablets: HTMLMediaElement.play() Returns a Promise and turn off video if it requires user interaction to play.

[totaam]

• MediaError.message may be able to help us diagnose the underlying problems
• Real Time Streaming to HTML5 (with out webrtc) just using video tag
• or maybe look at using RTP / webrtc (#1338)

[totaam]

Since this isn't making any progress, turn it off until someone fixes it: Xpra-org/xpra@4b125c4

[totaam]

Links that may help:

• h264-live-player based on:
• Broadway - double check the x264 arguments: 2M -bt 4M -coder 0 -bf 0 -flags -loop -wpredp 0 -an

[totaam]

New links:

• Video buffering in IE/Edge using Media Source Extensions
• Frame by frame decode using Media Source Extension: Now every MP4 created will have the MEHD fragment duration set to 0 which causes Chrome to process it as a live stream
• Streaming a video with Media Source Extensions: The Source Buffer emits an event before and after updating, you have to wait until it fires the updateend event before appending another Media Segment.
• Media Source API: Automatically Ensure Seamless Playback of Media Segments in Append Order: Chrome 50 adds additional support to the SourceBuffer mode attribute, allowing you to specify that media segments are played back continuously, in the order that they were appended, no matter whether the media segments initially had discontinuous timestamps

[totaam]

These plans may be scuppered by chrome: Chrome 66 will try to block unwanted noisy autoplaying video

[totaam]

Moving broadway decoding to Xpra-org/xpra#1839.

[totaam]

This could still be used but triggered by the user using a click on an "acceleration option"?

See also #16

[totaam]

New "preloading" option idea: prepare a video context whenever we get a user event (click in window) then tell the server that we support more encodings (ie: h264+mp4) and use it when we get a new stream.

[totaam]

Same as #16, needs help.

[totaam]

No help forthcoming so no progress likely.

[totaam]

Closing in favour of #123