Reducing size of HD footage for instagram/telegram etc

cris wrote on 11/4/2017, 7:03 AM

Hei!

I just finished a music video trailer for a client, he loved the filming, the coloring and the montage, so all went very well. The result is a 1-minute square HD video, which takes about 90Mb of space.

Now one of his markets is an Asian country, and he asked me if it was possible to get the size down to 4-5Mb (!) and then, after talking a little, 10Mb. What he tells me is it's about the bad internet connections in these places (my guess is that it makes it difficult for people running marketing channels down there to upload.. once uploaded, size shouldn't matter at all of course).

I didn't commit because I think the quality of 1m of video compressed to 5Mb would be rather horrible. I tried the Magix codec to 360p, and yes, I get around 5Mb but it looks terrible, pixelated and with color smearings - something I would never put out for my own band.

We had very little time to get the formats, so the best I could do (and they were happy) was to export the video to my phone and use iMovie there to compress down to its "medium" setting (I guess 360p) and the result was about 25Mb with a quality acceptable on a small phone screen. All went well in the end.

But since nobody's asked me before to get down to such small size, I wonder if there's something more I could have done, or any codec which comes with Movie studio that could help?

 

 

Comments

Steve Grisetti wrote on 11/4/2017, 8:17 AM

The size of your video file is a combination of its duration, resolution, frame rate, bit rate and compression. So, short of making a shorter video, decreasing its resolution and/or frame rate (which means a less clear picture) or decreasing its bit rate and increasing its compression (making it blotchier), there's no magic way to make a smaller file.

I don't know how you can possibly make a 10 meg 1-minute video that is even remotely watchable.

FayFen wrote on 11/5/2017, 7:41 AM

It could be better if you did it 960X540 (1/4 HD) at 1.5Mbps as WMV or MP4.

reducing saturation a bit could help with compression.

cris wrote on 11/5/2017, 11:53 AM

Thanks. Yes, I told them exactly what Steve writes, asked just in case there was something I hadn't thought of. Nobody's ever be concerned with the file size before.

But I'll experiment a little with a 1/4 HD. The video is quite desaturated already (they wanted that "almost black and white" look) so not sure there's much to take there, but thx for the tip.