LucasArts SANM/SMUSH video fails to decode

[Dan Loewenherz]

Summary of the bug:

Decoding a LucasArts SANM file fails with "Subcodec 48 is not implemented" and no output file is created.

How to reproduce:

% ffmpeg -i input.SAN output.mp4
...
[sanm @ 0x7fce49017000] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Conversion failed!

View output.txt for full output.

% ffmpeg -version
ffmpeg version 3.1.1 Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 7.3.0 (clang-703.0.31)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.1.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-libx265 --disable-lzma --enable-vda
libavutil      55. 28.100 / 55. 28.100
libavcodec     57. 48.101 / 57. 48.101
libavformat    57. 41.100 / 57. 41.100
libavdevice    57.  0.101 / 57.  0.101
libavfilter     6. 47.100 /  6. 47.100
libavresample   3.  0.  0 /  3.  0.  0
libswscale      4.  1.100 /  4.  1.100
libswresample   2.  1.100 /  2.  1.100
libpostproc    54.  0.100 / 54.  0.100

[Dan Loewenherz]

output.txt

[Dan Loewenherz]

I tried to access the anonymous FTP server to upload input.SAN but I can't connect ("Network is unreachable").

[Carl Eugen Hoyos]

If the issue is reproducible with current FFmpeg git head please upload your sample to your preferred file hoster.

[Dan Loewenherz]

Just checked, yep, reproducible with latest git head (906ee41).

Link to input file: ​https://www.dropbox.com/s/shbkh42z8lq05wj/input.SAN?dl=0

Password is "ffmpeg"

[ami_stuff]

there seems to be an incomplete support for this here (didn't test it myself):

​https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2016-April/192446.html

also here are more samples:

​http://www.datafilehost.com/d/da4a9f44

(uncheck "Download with Secured Download manager", so you won't get exe)

​https://github.com/clone2727/smushplay/

[Michael Niedermayer]

fixed by b22ce90d4228d1cb7727775cc848613ac31b97e9 by Manuel Lauss