[nylug-talk] Audio & Video of last night's Python Workshop and the General Meeting about Linux Audio with Sunny Dubey

[Allen Chan]

On Thursday 25 October 2007, Ron Guerin wrote:
> Next thing however, is to try processing that video down into a
> more compressed full-sized version, and a smaller image
> podcast-appropriate version.  Perhaps someone will volunteer the
> necessary information.

ffmpeg -i NYLUG-2007-10-10-RAW-DIGICAM.MPG -vcodec mpeg4 nylug20071010.avi

I used the above command to convert the video from its original
2,110,503,721 bytes to 199,235,536, a little less than 10% of the
original size, while retaining the 640x480 video size with only a
slight degradation in visual quality.  This can probably be refined
further using more advanced ffmpeg options.

If anyone is interested, ffmpeg provided the following information:

Input #0, mpeg, from 'NYLUG-2007-10-10-RAW-DIGICAM.MPG':
  Duration: 01:36:36.6, start: 0.110000, bitrate: 2912 kb/s
  Stream #0.0[0x1c0]: Audio: mp2, 32000 Hz, mono, 64 kb/s
  Stream #0.1[0x1e0]: Video: mpeg1video, yuv420p, 640x480, 104857 kb/s, 25.00 fps(r)
Output #0, avi, to 'nylug20071010.avi':
  Stream #0.0: Video: mpeg4, yuv420p, 640x480, q=2-31, 200 kb/s, 25.00 fps(c)
  Stream #0.1: Audio: mp2, 32000 Hz, mono, 64 kb/s