I have HDMI capture card however the software included has starting point at 6 Mbps in recording.
Do you know software that records H.264 3 Mbps without any problem ? I tried Debut but no luck.
I know that I can transcode later on but this is abother story.
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Let's start with the type of video you are trying to capture -- especially image size and framerate, what kind of capture card and software you are using currently, then your computer details, especially CPU.
Depending on those specs you may or may not be asking the impossible. -
video type : HD over HDMI - 720p 50fps
capture card : Monster X3
software : Monster X3 software, screen grabs are in my second thread
PC : i3450, 8 GB RAM, HD7770
recording live 6 Mbps works like a charm but file size is just too large
and if transcoded by YT video quality is still very good but file size is smaller so I want to record with lower bitrate -
yes, I want to learn two things
1.What software can record directly with 3 Mbps bitrate.
2.How to transcode already recorded material with 6 Mbps. -
Interesting question, I must admit, I always thought HDMI input, being digital just captured the stream as-is.
I didn't realize it was re-encoded during the capture. A bit like DV over Firewire, or ATSC over
the antenna. -
capture card is like a webcam but the signal is just better; you can watch real time this signal but if you want to capture you need to specify encoding parameters; other story is the source signal which in some cases (like dvb-t) can be recorded directly as transport stream
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Hdmi is UNCOMPRESSED digital. So that means ~1.3Gbps for the 720p50 material (in 4:4:4RGB mode), or ~850Mbps (in 4:2:2 YUV mode).
At those rates, your weakest link in the chain is likely your HDD subsystem, unless you are utilizing a 4drive RAID0 system or better.
So you HAVE to compress.
Scott -
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