[FFmpeg-user] FFmpeg image2 Strange Jitter/Jerky Motion

[Andrew Ayre]

Hi, I have a set of jpegs named 00000.jpg to 00099.jpg and all 1920 x
1080 in size. If I flick forwards through these files using Windows
Photo Viewer I see a smooth camera motion from frame to frame.

However if I use FFmpeg and image2 to generate a x264 1080p movie, then
the motion is no longer smooth. In fact the more motion there is the
jerkier FFmpeg makes it. Here is the movie:

Note that this is nothing to do with You Tube - what you see on there is
identical to the .mp4 file on my hard drive.

I've created a lot of movies using the same version of FFmpeg and the
same command line without problems before. Any ideas on how I can fix this?

Thanks, Andy

ffmpeg -r 15 -i %05d.jpg -s hd1080 -vcodec libx264 -vpre hq -bf 0 -crf
16 quadpan_15fps_1080p.mp4

FFmpeg version SVN-r23392, Copyright (c) 2000-2010 the FFmpeg developers
built on May 31 2010 12:54:58 with gcc 4.4.4
configuration: --enable-gpl --enable-postproc --enable-pthreads
--enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora
--enable-libx264 --enable-shared --enable-nonfree --enable-libvorbis
--enable-libgsm --enable-libspeex --enable-libschroedinger
--enable-libdirac --enable-avfilter --enable-avfilter-lavf
--enable-libopenjpeg --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-version3
libavutil 50.16. 0 / 50.16. 0
libavcodec 52.72. 0 / 52.70. 0
libavformat 52.67. 0 / 52.66. 0
libavdevice 52. 2. 0 / 52. 2. 0
libavfilter 1.20. 0 / 1.20. 0
libswscale 0.10. 0 / 0.10. 0
libpostproc 51. 2. 0 / 51. 2. 0

[Peter]

Post by Andrew Ayre
Hi, I have a set of jpegs named 00000.jpg to 00099.jpg and all 1920 x
1080 in size. If I flick forwards through these files using Windows
Photo Viewer I see a smooth camera motion from frame to frame.
However if I use FFmpeg and image2 to generate a x264 1080p movie, then
the motion is no longer smooth. In fact the more motion there is the

Are you sure the photos are in sequence? When you use Windows Photo Viewer and
see smooth motion, are the numbers in order?