support decoding the CineForm codec

[dericed]

I found that ffmpeg can't read CineForm? CFHD files.

There are some samples available here:  http://samples.mplayerhq.hu/V-codecs/CFHD/
I may be able to provide more samples if needed.

ffmpeg -y -i MT_BeartoothHighway_1min_Cineform.avi anything.mp4
ffmpeg version N-34835-g4a9f466 Copyright (c) 2000-2012 the FFmpeg developers
  built on Mar  4 2012 08:53:39 with gcc 4.2.1 (Apple Inc. build 5666) (dot 3)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD --enable-shared --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-libfreetype --cc=/usr/bin/gcc-4.2 --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass
  libavutil      51. 41.100 / 51. 41.100
  libavcodec     54.  7.100 / 54.  7.100
  libavformat    54.  2.100 / 54.  2.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 63.100 /  2. 63.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  7.100 /  0.  7.100
  libpostproc    52.  0.100 / 52.  0.100
[avi @ 0x7fb4c201ae00] decoding for stream 0 failed
[avi @ 0x7fb4c201ae00] Could not find codec parameters (Video: none (CFHD / 0x44484643), 1280x720)
Input #0, avi, from 'MT_BeartoothHighway_1min_Cineform.avi':
  Duration: 00:01:01.96, start: 0.000000, bitrate: 16472 kb/s
    Stream #0:0: Video: none (CFHD / 0x44484643), 1280x720, 29.97 fps, 29.97 tbr, 29.97 tbn, 29.97 tbc
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2 channels, s16, 1536 kb/s
Video pixel format is unknown, stream cannot be encoded

[compn]

we need a specification or whitepaper or other info on this codec to speed up development of a decoder.

try contacting cineform , maybe they will share with us?

[leandroprz]

I contacted Cineform support and they replied back:

===========
Thank you for you interest in Cineform. Please would you provide some more details of your project ?
===========

I'm no developer so I don't know what to reply.

[compn]

tell them you want cineform cfhd decoding support in the ffmpeg project.
 http://www.ffmpeg.org
that may answer their questions.

[ianken]

FWIW: Cineform is on it's way to becoming a SMPTE standard as "VC5"

 https://kws.smpte.org/apps/group_public/project/details.php?project_id=15

[compn]

someone could try again to get a response back from cineform...

[richardpl]

Is there dll somewhere?