For 30 fps material the largest allowed GOP size is 18. For 25 or 24 fps, the maximum is 15. The GOP size is set using the keyint option.
11.8.1.3. Bitrate Co... ain A/V sync with other muxers such as MPEG. This is why it is necessary to append the harddup video filter at t... =
If the audio sample rate in the original file is not the same as required by the target format, sample rate conversion is required. This is achieved using the -srate optio... :
* acodec: mp2 for VCD, SVCD, or PAL DVD; ac3 is most commonly used for DVD. PCM audio may also be used for DVD, but this is mostly a big waste of space. Note that MP3 audio
