gistfile1.txt

ffmpeg -r 25 -i output%d.tiff -vcodec libx264 out.flv
ffmpeg version 0.10.3 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jun 25 2012 00:54:04 with gcc 4.5.3
  configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/share/man --enable-shared --cc=i686-pc-linux-gnu-gcc --cxx=i686-pc-linux-gnu-g++ --ar=i686-pc-linux-gnu-ar --optflags='-O2 -march=core2 -fomit-frame-pointer -pipe' --extra-cflags='-O2 -march=core2 -fomit-frame-pointer -pipe' --extra-cxxflags='-O2 -march=core2 -fomit-frame-pointer -pipe' --disable-static --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --disable-stripping --disable-debug --disable-network --disable-vaapi --enable-libmp3lame --enable-libvo-aacenc --enable-libvorbis --enable-libx264 --enable-libxvid --enable-libfaac --enable-nonfree --disable-indev=v4l --disable-indev=v4l2 --enable-x11grab --enable-libfreetype --enable-pthreads --enable-libgsm --disable-amd3dnow --disable-amd3dnowext --disable-altivec --disable-avx --disable-mmx --disable-mmx2 --disable-ssse3 --disable-vis --disable-neon --cpu=core2 --enable-hardcoded-tables
  libavutil      51. 35.100 / 51. 35.100
  libavcodec     53. 61.100 / 53. 61.100
  libavformat    53. 32.100 / 53. 32.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 61.100 /  2. 61.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  6.100 /  0.  6.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, image2, from 'output%d.tiff':
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: tiff, rgba, 1920x1281, 25 tbr, 25 tbn, 25 tbc
File 'out.flv' already exists. Overwrite ? [y/N] y
Incompatible pixel format 'rgba' for codec 'libx264', auto-selecting format 'yuv420p'
[buffer @ 0x9cff280] w:1920 h:1281 pixfmt:rgba tb:1/1000000 sar:0/1 sws_param:
[buffersink @ 0x9cff4f0] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out'
[scale @ 0x9cff9a0] w:1920 h:1281 fmt:rgba -> w:1920 h:1281 fmt:yuv420p flags:0x4
[libx264 @ 0x9cfe700] height not divisible by 2 (1920x1281)
Output #0, flv, to 'out.flv':
    Stream #0:0: Video: h264, yuv420p, 1920x1281, q=-1--1, 90k tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (tiff -> libx264)
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height