[FFmpeg-user] using ffmpeg to make mp4 from png file series

[Ben Foster]

Hi,

I have a series of png files that I would like to make into an mpeg movie
that would be playable on a Mac.  I am trying this w/ the following command:
ffmpeg -f image2 -i "oplus_maps_zp1_%03d.png" -pix_fmt yuv420p file.mp4

The error in question is:  [libx264 @ 0x35e1f00] width not divisible by 2
(455x450)

I assume this means my input file width should be divisible by 2.  I used
ImageMagick
convert to create png files with an even number of pixels in width, but it
did not solve
the problem.  Can anybody help?  Thanks,

Ben Foster
foster at ucar.edu

[foster at yslogin6 oplus_maps_zp1.movie]$ !ffmpeg
ffmpeg -f image2 -i "oplus_maps_zp1_%03d.png" -pix_fmt yuv420p file.mp4
ffmpeg version 1.1.2 Copyright (c) 2000-2013 the FFmpeg developers
  built on Feb 19 2013 10:15:04 with gcc 4.4.6 (GCC) 20110731 (Red Hat
4.4.6-3)
  configuration: --disable-yasm --prefix=/glade/p/hao/wiltbemj/local
--enable-libx264 --enable-gpl
--extra-ldflags=-L/glade/p/hao/wiltbemj/local/lib/
--extra-cflags=-I/glade/p/hao/wiltbemj/local/include
--extra-libs=/glade/p/hao/wiltbemj/local/lib/libx264.a
  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
Input #0, image2, from 'oplus_maps_zp1_%03d.png':
  Duration: 00:00:03.88, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: png, rgb24, 455x450, 25 fps, 25 tbr, 25 tbn, 25 tbc
[libx264 @ 0x35e1f00] width not divisible by 2 (455x450)
Output #0, mp4, to 'file.mp4':
    Stream #0:0: Video: h264, yuv420p, 455x450, q=-1--1, 90k tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (png -> libx264)
Error while opening encoder for output stream #0:0 - maybe incorrect
parameters such as bit_rate, rate, width or height
[foster at yslogin6 oplus_maps_zp1.movie]$

-- 
Ben Foster
National Center for Atmospheric Research (NCAR)
High Altitude Observatory (HAO)
303-497-1595