Author Topic: MP4 video encoding (to reduce file size)  (Read 7281 times)

stefi.quattro

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MP4 video encoding (to reduce file size)
« on: January 17, 2013, 12:17:09 PM »
Hi everybody,
I have a video recorded by a camera and I would like to do the following actions:
1 - cutting video in pieces : the video contains different speeches and I want to divide them;
2 - encoding : since the videos must be uploaded on the Internet I need to compress them in order to reduce the filesize (for example it would be ok to reduce the image size).

I did the first operation (even if video and audio are not perfectly sync) but I don't understand which kind of format I can chose for encoding,

could you help me?

The video information are: 
Codec 4CC : H264, Image size  :1440*1080  , frame rate: 50.000fps
Audio
Codec: AC3, Channels: Stereo, Bitrate: 32000Bps/ 256 kbps, frequency: 48000 Hz

thanks
Stefania (Italy)

styrol

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Re: MP4 video encoding (to reduce file size)
« Reply #1 on: January 17, 2013, 10:37:02 PM »
Quote
I did the first operation (even if video and audio are not perfectly sync).
h.264 is time based, to avoid AV sync issues use Avidemux 2.6.
Quote
but I don't understand which kind of format I can chose for encoding
Video: x.264 (use filter to reduce the image size)
Audio: AAC (stereo, 96kbps @ 48000Hz)
Format: MP4 (MP4v2)