[FFmpeg-soc] Watermark positioning

[Денис Нагорский]

Hi everybody.

Please help me. I download ffmpeg+libavfilter  from
svn://svn.ffmpeg.org/soc/libavfilter.

I need to watermark my video.
I use this command and it is work for me  "/usr/local/bin/ffmpeg -i
out.avi -vf "movie=0:png:logo_small.png [wm];[in][wm] overlay=0:0:1
[out]" 555.avi "

BUT if i try to change margin of my watermark (overlay=10:10:1) its
broke my video (see screen -
http://img163.imageshack.us/img163/1006/sreene.png). You can see green
streaks.

I try another video, but result was the same.
Also i try "overlay=main_w-overlay_w-10:main_h-overlay_h-10" but it
still make green streaks.


How i can place logo in the bottom right corner of the input video?


root@/home/daraba/public_html/ffmpeg# /usr/local/bin/ffmpeg -i out.avi
-vf "movie=0:png:logo_small.png [wm];[in][wm] overlay=10:10:1 [out]"
555.avi
FFmpeg version SVN-r25118, Copyright (c) 2000-2010 the FFmpeg developers
  built on Sep 23 2010 10:13:30 with gcc 4.4.3
  configuration: --enable-avfilter --enable-filter=movie --enable-gpl
--enable-libx264
  libavutil     50.26. 0 / 50.26. 0
  libavcore      0. 9. 0 /  0. 9. 0
  libavcodec    52.89. 0 / 52.89. 0
  libavformat   52.78. 5 / 52.78. 5
  libavdevice   52. 2. 2 / 52. 2. 2
  libavfilter    1.39. 0 /  1.39. 0
  libswscale     0.11. 0 /  0.11. 0
Input #0, avi, from 'out.avi':
  Metadata:
    ISFT            : Lavf52.31.0
  Duration: 00:00:18.50, start: 0.000000, bitrate: 413 kb/s
    Stream #0.0: Video: mpeg4, yuv420p, 740x528 [PAR 1:1 DAR 185:132],
4 fps, 4 tbr, 4 tbn, 4 tbc
File '555.avi' already exists. Overwrite ? [y/N] y
[buffer @ 0xabc5af0] w:740 h:528 pixfmt:yuv420p
[overlay @ 0xabc5f90] auto-inserting filter 'auto-inserted scaler 0'
between the filter 'Filter 0 movie' and the filter 'Filter 1 overlay'
[scale @ 0xac16f90] w:180 h:74 fmt:bgra -> w:180 h:74 fmt:yuva420p
flags:0xa0000004
Output #0, avi, to '555.avi':
  Metadata:
    ISFT            : Lavf52.78.5
    Stream #0.0: Video: mpeg4, yuv420p, 740x528 [PAR 1:1 DAR 185:132],
q=2-31, 200 kb/s, 4 tbn, 4 tbc
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop encoding
frame=   74 fps=  0 q=4.2 Lsize=     951kB time=18.50 bitrate= 421.2kbits/s
video:944kB audio:0kB global headers:0kB muxing overhead 0.783307%