[theora] ffmpeg2theora: issue converting from a png image list
michael at free-electrons.com
Wed Jul 15 14:24:03 PDT 2009
Hi Jan, all
I am trying to generate a video introduction with a fade-in / fade-out
effect. To do this with ffmpeg2theora only, I generated a list of PNG
images: img001.png, img002.png... img299.png
The ffmpeg2theora man page says:
Encode a series of images:
ffmpeg2theora frame%06d.png -o output.ogv
That's exactly what I tried with the latest 0.24 release of ffmpeg2theora:
ffmpeg2theora-0.24.linux32.bin img-%03d.png -o output.ogv
Input #0, image2, from 'img-%03d.png':
Duration: 00:00:12.00, start: 0.000000, bitrate: N/A
Stream #0.0: Video: png, yuv420p, 1280x720, 25 tbr, 25 tbn, 25 tbc
The same problem happens with the release in Ubuntu 9.04, and with the
0.22 release. I haven't tried earlier releases yet.
To reproduce this issue, you can get the images from the tarball on
I would like to avoid using mencoder + ffmpeg2theora to do the job
(unless I manage to generate the theora video directly from mencoder).
I hope this helps to fix this issue... Don't hesitate to get back to me
if you have any question.
Michael Opdenacker, Free Electrons
Kernel, drivers and embedded Linux development,
consulting, training and support.
+ 33 621 604 642
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