ffplay handles it just fine (it's done several transitions now)
On the basis that it may be a VLC oddity (and I am running an old version: 3.0.16 Vetinari (revision 3.0.13-8-g41878ff4f2)) - I'm going to close this as Invalid for now.
Can always re-open if I run into issues with other players later.
changed title from {-Allow-} seamless transition {- -}between episodes{- via RTMP-} to {+RTMP players do not always+} seamless{+ly+} transition between episodes
If it does start playing up again, though, one option would be enable rtmp_control. We could then have the publish script make a call to redirect all clients to a new stream (realistically, probably back to the same one) - the idea being that it should result in a disconnect + reconnect.
In the meantime, I've implemented a switch (RTMP_FORCE_REDIRECT) to send clients a redirect away from the stream (and then back again) at a change in presentation.
It needs to be set to true to activate (it's off by default).
It doesn't work with VLC - there may well be other players that don't handle it either, RTMP being the vague spec that it is (I'm starting to get flashbacks...)
Just tested against Kodi's player, seems to work fairly seamlessly with the redirect enabled - I've been using the next API to skip ahead. Occasionally the image will stick, presumably because we've got to wait for the next keyframe in the new stream.
Activity
03-Aug-24 14:53
assigned to @btasker
03-Aug-24 14:54
mentioned in issue #1
03-Aug-24 15:32
The settings do seem to be correct (I've added some explicit settings to be sure).
It occurred to me, though, that maybe it's an issue with VLC instead. I've got
ffplaygoing at the moment to see what happens.03-Aug-24 15:59
ffplayhandles it just fine (it's done several transitions now)On the basis that it may be a VLC oddity (and I am running an old version:
3.0.16 Vetinari (revision 3.0.13-8-g41878ff4f2)) - I'm going to close this asInvalidfor now.Can always re-open if I run into issues with other players later.
04-Aug-24 09:14
mentioned in commit github-mirror/Home-TV-Station@eb77852a797a062d3f88ca4b9e6a22052f5659bb
Commit: github-mirror/Home-TV-Station@eb77852a797a062d3f88ca4b9e6a22052f5659bb Author: B Tasker Date: 2024-08-03T16:30:10.000+01:00Message
chore: be explicit about rtmp config (helps with project-management-only/home-tv-station#5)
04-Aug-24 09:59
Re-opening - something similar happens on Kodi too.
The video sticks, but the audio does not. So you get stuck with the last frame of the previous video whilst the audio of the next one plays.
04-Aug-24 10:36
Yeah, so as I suspected, this has to do with changes in the video being fed in (see here).
We need to ensure consistency of resolution + framerate etc.
04-Aug-24 12:08
mentioned in commit github-mirror/Home-TV-Station@ccbc2db3f657c2984c8a319e21837c3177f04202
Commit: github-mirror/Home-TV-Station@ccbc2db3f657c2984c8a319e21837c3177f04202 Author: B Tasker Date: 2024-08-04T13:07:43.000+01:00Message
feat: normalise video parameters to allow seamless changeovers (project-management-only/home-tv-station#5)
04-Aug-24 12:17
The commit above ensure consistency - I've tested it by running and then stopping the testcard.
It does come at a CPU cost though, because we're now doing much more than simply mirroring video.
Streams have the following characteristics:
04-Aug-24 12:50
changed title from {-Allow-} seamless transition {- -}between episodes{- via RTMP-} to {+RTMP players do not always+} seamless{+ly+} transition between episodes
04-Aug-24 16:36
This seems OK so far.
If it does start playing up again, though, one option would be enable
rtmp_control. We could then have the publish script make a call to redirect all clients to a new stream (realistically, probably back to the same one) - the idea being that it should result in a disconnect + reconnect.04-Aug-24 16:55
In the meantime, I've implemented a switch (
RTMP_FORCE_REDIRECT) to send clients a redirect away from the stream (and then back again) at a change in presentation.It needs to be set to
trueto activate (it's off by default).It doesn't work with VLC - there may well be other players that don't handle it either, RTMP being the vague spec that it is (I'm starting to get flashbacks...)
04-Aug-24 17:00
Just tested against Kodi's player, seems to work fairly seamlessly with the redirect enabled - I've been using the next API to skip ahead. Occasionally the image will stick, presumably because we've got to wait for the next keyframe in the new stream.
04-Aug-24 18:00
mentioned in commit github-mirror/Home-TV-Station@9f277e706e983b9038b3bf75b3aa45a077ae3511
Commit: github-mirror/Home-TV-Station@9f277e706e983b9038b3bf75b3aa45a077ae3511 Author: B Tasker Date: 2024-08-04T17:53:33.000+01:00Message
feat: implement ability to force redirect players (project-management-only/home-tv-station#5)