support for ffv1 yuv422p16le (10 bit) playback
This is a ffv1 video in a Quicktime wrapper. It is 10 bit YUV 4:2:2 (yuv422p16le). The video does not play back in VLC. Since the video is large I uploaded a sample to http://www.archive.org/download/test20100622_v210_and_ffv1/DHC36.ffv1.flac.mov. The video shows 10 seconds of colorbars digitized from a VHS tape.
ffprobe /Users/daverice/test10/DHC36/DHC36.ffv1.flac.mov
FFprobe version SVN-r23691, Copyright (c) 2007-2010 the FFmpeg developers
built on Jun 21 2010 23:31:01 with gcc 4.2.1 (Apple Inc. build 5659)
configuration: --enable-libopenjpeg
libavutil 50.19. 0 / 50.19. 0
libavcodec 52.77. 0 / 52.77. 0
libavformat 52.68. 0 / 52.68. 0
libavdevice 52. 2. 0 / 52. 2. 0
libavfilter 1.20. 0 / 1.20. 0
libswscale 0.11. 0 / 0.11. 0
Input [#0](https://code.videolan.org/videolan/vlc/-/issues/0), mov,mp4,m4a,3gp,3g2,mj2, from '/Users/daverice/test10/DHC36/DHC36.ffv1.flac.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf52.68.0
Duration: 00:00:09.97, start: 0.000000, bitrate: 86935 kb/s
Stream [#0](https://code.videolan.org/videolan/vlc/-/issues/0).0(eng): Video: ffv1, yuv422p16le, 720x486, 86547 kb/s, 29.87 fps, 29.97 tbr, 30k tbn, 30k tbc
Stream [#0](https://code.videolan.org/videolan/vlc/-/issues/0).1(eng): Audio: flac, 48000 Hz, 1 channels, s16, 95 kb/s
Stream [#0](https://code.videolan.org/videolan/vlc/-/issues/0).2(eng): Audio: flac, 48000 Hz, 1 channels, s16, 95 kb/s
Stream [#0](https://code.videolan.org/videolan/vlc/-/issues/0).3(eng): Audio: flac, 48000 Hz, 1 channels, s16, 95 kb/s
Stream [#0](https://code.videolan.org/videolan/vlc/-/issues/0).4(eng): Audio: flac, 48000 Hz, 1 channels, s16, 95 kb/s