Comment by tracker1
3 months ago
I think the real key is to only compress enough initially so that you don't blow out your storage in terms of size and throughput... Once you have the stream captured at a higher quality, you can always recompress more optimally.
A relatively low compression with hardware h.264 will still take up a lot less space and throughput than mpeg-2 or raw.
The ultimate hack would be to intercept the data stream after the decryption, but before the decoding, so you get still-compressed H264 or whatever...
I suppose it's possible that they use a codec where the decryption also means decompression...