11.8.2.1. Aspect Ratio ====
The aspect argument of -lavcopts is used to encode the aspect ratio of the file. During playback the aspect ratio is use... ary to append the harddup video filter at the end of the filter chain to avoid this kind of problem. You can find more technical information ... o be used for DVD, but this is mostly a big waste of space. Note that MP3 audio is not compliant for any of these formats, but players often have no problem ... lavcopts. Doing so may help reduce the appearance of blocks in flat-colored areas. Putting it all together, this is an example of a set of lavcopts for a higher quality DVD:
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