[Libav-user] Writing 16bit greyscale videos

[Masneri, Stefano]

Hi, 

Here's the 16 bit tiff input images: https://www.dropbox.com/s/r3qbx0l8s6tqcpg/testFiles.7z?dl=0

Command used: 
ffmpeg -i test%d.tif -vcodec ffv1 -b:v 2M -r 10 test.avi

Command line output: 
ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 5.2.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gn le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-l able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-lib  --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable ble-decklink --enable-zlib
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Input #0, image2, from 'test%d.tif':
  Duration: 00:00:05.32, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: tiff, gray16le, 124x128, 25 fps, 25 tbr, 25 tbn, 25 tbc File 'test.avi' already exists. Overwrite ? [y/N] y
[ffv1 @ 0557eb80] bits_per_raw_sample > 8, forcing coder 1 Output #0, avi, to 'test.avi':
  Metadata:
    ISFT            : Lavf56.40.101
    Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), gray16le, 124x128, q=2-31, 2000 kb/s, 10 fps, 10 tbn, 10 tbc
    Metadata:
      encoder         : Lavc56.60.100 ffv1
Stream mapping:
  Stream #0:0 -> #0:0 (tiff (native) -> ffv1 (native)) Press [q] to stop, [?] for help
frame=   54 fps=0.0 q=-0.0 Lsize=     307kB time=00:00:05.40 bitrate= 465.2kbits/s dup=0 drop=79
video:300kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.284209%

Thanks and best regards,
Stefano

-----Original Message-----
From: Libav-user [mailto:libav-user-bounces at ffmpeg.org] On Behalf Of Carl Eugen Hoyos
Sent: Mittwoch, 31. August 2016 15:33
To: This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter.
Subject: Re: [Libav-user] Writing 16bit greyscale videos

Hi!

2016-08-31 9:13 GMT+02:00 Masneri, Stefano <stefano.masneri at brain.mpg.de>:
> If needed I can provide the images and the video.

Please do provide minimal input files that allow to reproduce the issue.

Carl Eugen
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