decoding with some pbm files

[jrun]

Summary of the bug:
How to reproduce:

% ffmpeg -i 002.pbm -f null -

ffmpeg version

N-81451-g8a78fc5 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.9.3 (Gentoo 4.9.3 p1.5, pie-0.6.4)
configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64
--docdir=/usr/share/doc/ffmpeg-9999/html --mandir=/usr/share/man --enable-shared
--cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++
--ar=x86_64-pc-linux-gnu-ar --optflags='-O2 -pipe' --disable-static
--enable-avfilter --enable-avresample --disable-stripping --disable-indev=v4l2
--disable-outdev=v4l2 --disable-indev=oss --disable-indev=jack
--disable-outdev=oss --disable-outdev=sdl --enable-bzlib
--disable-runtime-cpudetect --disable-debug --disable-gcrypt --disable-gnutls
--disable-gmp --enable-gpl --enable-hardcoded-tables --enable-iconv
--disable-lzma --enable-network --disable-openssl --enable-postproc
--disable-libsmbclient --disable-ffplay --disable-sdl --disable-vaapi
--enable-vdpau --disable-xlib --enable-libxcb --enable-libxcb-shm
--enable-libxcb-xfixes --enable-zlib --disable-libcdio --disable-libiec61883
--disable-libdc1394 --disable-libcaca --disable-openal --enable-opengl
--disable-libv4l2 --disable-libpulse --disable-libopencore-amrwb
--disable-libopencore-amrnb --disable-libfdk-aac --disable-libopenjpeg
--disable-libbluray --disable-libcelt --disable-libgme --disable-libgsm
--disable-mmal --disable-libmodplug --enable-libopus --disable-libilbc
--disable-librtmp --disable-libssh --disable-libschroedinger --disable-libspeex
--disable-libvorbis --disable-libvpx --disable-libzvbi --disable-libbs2b
--disable-chromaprint --disable-libebur128 --disable-libflite --disable-frei0r
--disable-libfribidi --disable-fontconfig --disable-ladspa --disable-libass
--disable-libfreetype --disable-librubberband --enable-libzimg --disable-libsoxr
--enable-pthreads --disable-libvo-amrwbenc --disable-libmp3lame
--disable-libfaac --disable-libkvazaar --disable-nvenc --enable-libopenh264
--disable-libsnappy --disable-libtheora --disable-libtwolame
--disable-libwavpack --disable-libwebp --disable-libx264 --disable-libx265
--disable-libxvid --disable-amd3dnow --disable-amd3dnowext --disable-aesni
--disable-avx --disable-avx2 --disable-fma3 --disable-fma4 --disable-xop
--disable-doc --disable-htmlpages --enable-manpages

libavutil      55. 29.100 / 55. 29.100
libavcodec     57. 54.100 / 57. 54.100
libavformat    57. 48.100 / 57. 48.100
libavdevice    57.  0.102 / 57.  0.102
libavfilter     6. 54.100 /  6. 54.100
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

built on:

Linux darkstar 4.7.0-hardened #1 SMP
Wed Aug 17 14:01:06 2016 x86_64 Intel(R) Core(TM) i3-2130 CPU @ 3.40GHz GenuineIntel
GNU/Linux

[Carl Eugen Hoyos]

Why does the console output you attached describe another file than the one you attached?
Which application shows an image for the file you attached?

[jrun]

oops! my bad. attaching the right report.

[Carl Eugen Hoyos]

Which application shows an image for the file you attached?

[jrun]

Replying to cehoyos:

Which application shows an image for the file you attached?

sxiv
imv

[Carl Eugen Hoyos]

$ sxiv 002.pbm
sxiv: 002.pbm: Error opening image
sxiv: no more files to display, aborting

FreeImage reads the file though.

[Carl Eugen Hoyos]

Feel free to test attached patch.
How was your sample created? It seems like a bug to me that FreeImage reads the file, nothing else (including Netpbm) does afaict because the end of the file (that apparently only contains "0"s) is missing, around 400kB.

[jrun]

if i crop the scanning area to the point that there is no black at the bottom, then ffmpeg is happy. trying the patch in a minute.

[Carl Eugen Hoyos]

The file you attached is produced by your scanner? Which scanner is this?

[jrun]

this is what sane sees:

hpaio:/usb/HP_Officejet_Pro_X476dn_MFP

[jrun]

works here. thanks.

[Elon Musk]

Why you reopened it if you can not fix it?