[FFmpeg-user] Ffmpeg conversion from JPEG-SOF3(lossless) to JPEG-LS(lossless) cuts the image after some kB

[Steffen Knoll]

Console output:

ffmpeg -y -i C:\Users\sknoll\Desktop\big.sof3 -vcodec jpegls -q:v 0 test.jls
ffmpeg version N-81342-gb93e223 Copyright (c) 2000-2016 the FFmpeg 
developers
   built with gcc 5.4.0 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads 
--enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth 
--enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r 
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray 
--enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme 
--enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame 
--enable-libopencore-amrnb --enable-libopencore-amrwb 
--enable-libopenjpeg --enable-libopus --enable-librtmp 
--enable-libschroedinger --enable-libsnappy --enable-libsoxr 
--enable-libspeex --enable-libtheora --enable-libtwolame 
--enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis 
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 
--enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg 
--enable-lzma --enable-decklink --enable-zlib
   libavutil      55. 28.100 / 55. 28.100
   libavcodec     57. 51.102 / 57. 51.102
   libavformat    57. 46.101 / 57. 46.101
   libavdevice    57.  0.102 / 57.  0.102
   libavfilter     6. 51.100 /  6. 51.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  1.100 /  2.  1.100
   libpostproc    54.  0.100 / 54.  0.100
Input #0, jpeg_pipe, from 'C:\Users\sknoll\Desktop\big.sof3':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: mjpeg, gray16le(bt470bg/unknown/unknown), 
512x512, lossless, 25 tbr, 25 tbn, 25 tbc
[image2 @ 00000000006a5600] Using AVStream.codec to pass codec 
parameters to muxers is deprecated, use AVStream.codecpar instead.
Output #0, image2, to 'test.jls':
   Metadata:
     encoder         : Lavf57.46.101
     Stream #0:0: Video: jpegls, gray16le, 512x512, q=2-31, 200 kb/s, 25 
fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc57.51.102 jpegls
Stream mapping:
   Stream #0:0 -> #0:0 (mjpeg (native) -> jpegls (native))
Press [q] to stop, [?] for help
[mjpeg @ 00000000006a7060] mjpeg_decode_dc: bad vlc: 0:0 (00000000006a4f20)
frame=    1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A speed= 
8.8x
video:5kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB 
muxing overhead: unknown


Unfortunately I didn't find any library that can handle SOF-3 Jpegs.

Sorry for the fauxpas with the download link. It tricked me with a 
cookie. I can download it.....

This should work now:

Original SOF-3: http://www12.zippyshare.com/v/EEcHv1R3/file.html

Converted LS: http://www12.zippyshare.com/v/sBr8u9Dz/file.html



Am 26.08.2016 um 12:48 schrieb Moritz Barsnick:
> On Fri, Aug 26, 2016 at 11:46:00 +0200, Steffen Knoll wrote:
>> I've used following command:
>> ffmpeg -y -i big.sof3 -vcodec jpegls -q:v 0 test.jls
> Would you please also post the complete, uncut console output of your
> command? Thanks.
>
> Have you tried any other tools? With what result?
>
>> However in the converted JPEG-LS the ScanData is only 5149 Bytes.
>> http://s000.tinyupload.com/?file_id=00054117486941883286
> How can I download the samples without a login and without having to
> install an extension?
>
> Moritz
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-- 
best regards

Steffen Knoll