[FFmpeg-user] Convert a series of SGI images to video

[Werner Robitza]

I was able to solve this by using the tool from this forum post:

http://www.avsforum.com/t/1111599/original-uncompressed-video-35mm#post_15629296

sgitoyuv 1920 1080 <input> <output>

It creates a YCbCr YUV frame. I ran this on all frames, and concatenated
them to one YUV file. Then:

ffmpeg -f rawvideo -s 1920x1080 -pix_fmt uyvy422 -r 50 -i input.yuv -c copy
out.avi


On Fri, Mar 1, 2013 at 12:31 PM, Werner Robitza <werner.robitza at gmail.com>wrote:

> I'm trying to create one video file out of a number of SGI images,
> specifically the SVT High Definition Multi Format Test Set.
>
> ftp://anonymous@vqeg.its.bldrdoc.gov/HDTV/SVT_MultiFormat
>
> Each frame is an image, e.g.:
>
> fmpeg -i 15523.sgi
> ffmpeg version 1.1.3 Copyright (c) 2000-2013 the FFmpeg developers
>   built on Feb 24 2013 18:10:01 with Apple LLVM version 4.2
> (clang-425.0.24) (based on LLVM 3.2svn)
>   configuration: --prefix=/usr/local/Cellar/ffmpeg/1.1.3 --enable-shared
> --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree
> --enable-hardcoded-tables --enable-avresample --cc=cc --host-cflags=
> --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame
> --enable-libxvid --enable-libtheora --enable-libvorbis --enable-libvpx
> --enable-libvo-aacenc --enable-libass --enable-ffplay
> --enable-libschroedinger --enable-libfdk-aac --enable-libopus
> --enable-frei0r --enable-libopenjpeg
> --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1/include/openjpeg-1.5 '
>   libavutil      52. 13.100 / 52. 13.100
>   libavcodec     54. 86.100 / 54. 86.100
>   libavformat    54. 59.106 / 54. 59.106
>   libavdevice    54.  3.102 / 54.  3.102
>   libavfilter     3. 32.100 /  3. 32.100
>   libswscale      2.  1.103 /  2.  1.103
>   libswresample   0. 17.102 /  0. 17.102
>   libpostproc    52.  2.100 / 52.  2.100
> [image2 @ 0x7fd494028400] Stream #0: not enough frames to estimate rate;
> consider increasing probesize
> Input #0, image2, from '15523.sgi':
>   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
>     Stream #0:0: Video: sgi, rgb48be, 1920x1080, 25 tbr, 25 tbn, 25 tbc
>
> How can I convert those to one, e.g., AVI file with uncompressed YUV
> contents (4:2:2 or 4:2:0 is okay)?
>
> I've been trying
>
> cat *.sgi | ffmpeg -y -f image2pipe -c:v sgi -r 50 -i - -c:v rawvideo -f
> rawvideo -pix_fmt yuv420p out.avi
>
> But this results in:
>
> ffmpeg version 1.1.3 Copyright (c) 2000-2013 the FFmpeg developers
>   built on Feb 24 2013 18:10:01 with Apple LLVM version 4.2
> (clang-425.0.24) (based on LLVM 3.2svn)
>   configuration: --prefix=/usr/local/Cellar/ffmpeg/1.1.3 --enable-shared
> --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree
> --enable-hardcoded-tables --enable-avresample --cc=cc --host-cflags=
> --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame
> --enable-libxvid --enable-libtheora --enable-libvorbis --enable-libvpx
> --enable-libvo-aacenc --enable-libass --enable-ffplay
> --enable-libschroedinger --enable-libfdk-aac --enable-libopus
> --enable-frei0r --enable-libopenjpeg
> --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1/include/openjpeg-1.5 '
>   libavutil      52. 13.100 / 52. 13.100
>   libavcodec     54. 86.100 / 54. 86.100
>   libavformat    54. 59.106 / 54. 59.106
>   libavdevice    54.  3.102 / 54.  3.102
>   libavfilter     3. 32.100 /  3. 32.100
>   libswscale      2.  1.103 /  2.  1.103
>   libswresample   0. 17.102 /  0. 17.102
>   libpostproc    52.  2.100 / 52.  2.100
> [image2pipe @ 0x7fde82032600] max_analyze_duration 5000000 reached at
> 5000000
> [image2pipe @ 0x7fde82032600] Estimating duration from bitrate, this may
> be inaccurate
> Input #0, image2pipe, from 'pipe:':
>   Duration: N/A, bitrate: N/A
>     Stream #0:0: Video: sgi, rgb48be, 1920x1080, 50 fps, 50 tbr, 50 tbn,
> 50 tbc
> Output #0, rawvideo, to 'out.avi':
>   Metadata:
>     encoder         : Lavf54.59.106
>     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1920x1080,
> q=2-31, 200 kb/s, 90k tbn, 50 tbc
> Stream mapping:
>   Stream #0:0 -> #0:0 (sgi -> rawvideo)
> Error while decoding stream #0:0: Invalid data found when processing input
> [sgi @ 0x7fde82040e00] bad magic number
> (error repeated)
>
> Ideas? The test set is available for everyone to download. The SGI data
> format is ‘sgi16’ (interleaved RGB).
>