VideoFrameWriter is designed to accept webrtc::VideoFrame as input and
write it with Y4mFrameWriterImpl to the output file, transforming
webrtc::VideoFrame to the uint8_t* frame_buffer. VideoFrameWriter will
be used to write webrtc::VideoFrames during dumping input and output
video in peer connection level test framework and will be injected
in webrtc::test::FrameGenerator and rtc::VideoSinkInterface<VideoFrame>.
Bug: webrtc:10138
Change-Id: Iadec7d3ad66f226836acbebe070cf88ceb242f62
Reviewed-on: https://webrtc-review.googlesource.com/c/117200
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26305}