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View Full Version : Encoding 1080p for progressive download @ 8mbps


Blue_MiSfit
23rd July 2008, 10:13
Hi guys,

I want to do progressive download 1080p @ 8mbps (25mbps max). I want to achieve as close to transparency as possible, granted it's not going to be perfect in all cases.

Ideally, I would like the bitrate for the first section of the movie to bit a bit lower - so the first few minutes would download quickly. Would adjusting the curves be the best way to achieve this goal?

I will of course be using high profile x264, with Psy-RDO and VAQ. My settings so far are sub-me 6, b-rdo, 8x8dct, and me umh.

I'm guessing deblocking 0,0 would be the best bet. What other settings could I tweak to boost quality? Encoding speed isn't much of an issue, but I'd like to avoid silly things like exhaustive search.

If it matters, I'll be muxing into a transport stream with AC3 audio.

My sources will either be 25mbps H.264 / VC1 or 15-30mbps MPEG-2 - maybe something more exotic in the future like 80mbps QuickTime Photo JPEG. AviSynth filtering will be done on a case-per case basis...

Any and all suggestions would be appreciated!

~MiSfit

Sharktooth
23rd July 2008, 11:27
set a buffer size of 8000000, maxbitrate 25000000
set a zone for the first section to lower the avg bitrate.