[Bug 753032] mpegtsmux: AVFoundation can not play videos muxed with mpegts if h.264 profile is high-4:4:4

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=753032

--- Comment #3 from Tim-Philipp Müller <t.i.m at zen.co.uk> ---
You have filed this bug against mpegtsmux, not x264enc. Why is that? Does it
work if you use mp4mux instead of mpegtsmux?

As for x264enc, it seems to behave correctly as far as I can tell:

1) Y444 in, outputs high-4:4:4

   gst-launch-1.0 videotestsrc ! video/x-raw,format=Y444 ! x264enc ! fakesink
-v


2) Y444 in, with output requested to be main/high profile -> error

   gst-launch-1.0 videotestsrc ! video/x-raw,format=Y444 ! x264enc !
video/x-h264,profile=high ! fakesink -v


3) Y444 in + videoconvert, with output requested to be main/high profile ->
converts to I420 and outputs main/high profile

   gst-launch-1.0 videotestsrc ! video/x-raw,format=Y444 ! videoconvert !
x264enc ! video/x-h264,profile=high ! fakesink -v

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