Philipp Hancke 0bace22a0b Expose video mimeType for insertable streams
which allows determining what codec (data format) is used.
Chromium CL:
  https://chromium-review.googlesource.com/c/chromium/src/+/4941907

Split from
  https://webrtc-review.googlesource.com/c/src/+/318283
to reduce CL size and avoid audio woes.

BUG=webrtc:15579

Change-Id: I404107af526df3009c16d2a6148784fe87dfa807
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/323721
Reviewed-by: Tony Herre <herre@google.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#41007}
2023-10-25 16:01:32 +00:00
..
2023-03-21 16:54:19 +00:00