unpacking video audio data from .mov file

[Dave1024]

Hi,

I am trying to unpack a .mov file and retrive video (h.264) and audio(aac) data. In the .mov file 1 video track and 9 audio track.

I got one more track which is for 'tmcd'.when i try to read the content i get sample number 1 and sample size is 4.

Further i understand this is timecode value. I had following doubts

1. i had 650 video frames but why i get only 4 byte time information ?
2. .mov tmcd will give only start time value ?

will you please tell how can i extract each track from .mov container using ffmpeg. if i can do that i can easily analyze the data of tmcd track.

Please help me to solve the issue

Thanks
Dave