Post processing in ffmpeg to move 'moov atom' in MP4 files (qt-faststart)

问题

Is it possible to run ffmpeg from the command line which will either place the 'moov atom' metadata in the beginning of the MP4 file or run the qt-faststart as a post processing operation in ffmpeg so the generated file is stream-able through the internet?

I can of course run it as a separate command, but would prefer it to be something

as an option within ffmpeg, or
as part of a post conversion, command line option when converting the video files via ffmpeg

Edit 1

http://ffmpeg.org/ffmpeg.html#mov

MOV / MP4 muxer

The muxer options are:

‘-moov_size bytes’

Reserves space for the moov atom at the beginning of the file instead of 
placing the moov atom at the end. If the space reserved is insufficient, 
muxing will fail.

回答1:

Seems like faststart support has been included in ffmpeg. FFmpeg Formats Documentation:

-movflags faststart

Run a second pass moving the moov atom on top of the file. This operation can take a while, and will not work in various situations such as fragmented output, thus it is not enabled by default.