Pixelate effect when converting MOV to FLV via FFMPEG I have a .MOV video -created with Final Cut Pro 7 - which I'm converting to .flv using FFMPEG. I'm very happy about the quality and the size of the output file, but whenever I have fade in/out transitions in the input video, I get a pixelate effect on the output file. Any advice on how to solve this, without increase too much the output file size?

FRAME_SIZE=720x576
BIT_RATE=1200k

ffmpeg -s $FRAME_SIZE -i $1 -g 250 -ar 44100 -deinterlace -b $BIT_RATE -minrate $BIT_RATE -maxrate $BIT_RATE -bufsize 10000k -qblur 0.3 $2


Where $1 and $2 are, respectively, the input and output file.
You should explicitly specify a video codec using -vcodec as well as quality settings.

The problem is that ffmpeg's defaults aren't very sensible when you only specify a container format for the output, often choosing a sub-standard video format by default.

If you want H.264 output, try using the presets, e.g. -vcodec libx264 -vpre max. (To see what presets are available, try ls /usr/share/ffmpeg/*.ffpreset.)