[FFmpeg-user] using -vtag on input files

[Roee Kashi]

Hi,

back in 2012 I could use -vtag on an input rawvideo file, thus tell ffmpeg
the pixel format is YV12.

at a certain point there was a regression in that feature so vtag is again
allowed only for outputs.

currently since I have to convert YV12 rawvideo files to avi, I can only
use this version:

> ffmpeg.exe -version
ffmpeg version N-37063-g14d94a1
built on Jan 23 2012 17:40:00 with gcc 4.6.2
configuration: --disable-static --enable-shared --enable-gpl
--enable-version3 --disable-w32threads --enable-runtime-cpudetect
--enable-avisynth --ena
ble-bzlib --enable-frei0r --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libfreetype --enable-libgsm
--enable-libmp3lame --enable-libo
penjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex
--enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc
--enable-libvorbi
s --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid
--enable-zlib
libavutil      51. 34.101 / 51. 34.101
libavcodec     53. 57.105 / 53. 57.105
libavformat    53. 30.100 / 53. 30.100
libavdevice    53.  4.100 / 53.  4.100
libavfilter     2. 59.101 /  2. 59.101
libswscale      2.  1.100 /  2.  1.100
libswresample   0.  6.100 /  0.  6.100
libpostproc    52.  0.100 / 52.  0.100

can this option be added to new git-master so I could update my ffmpeg
release?

BR,
Roee Kashi.