I didn't even know HDMI extenders over IP existed! I wouldn't use it for TV/movies, because the re-compressed picture can't look all that great. But I could imagine plenty of uses for something like that!
Why do you assume the signal is being recompressed or in any other way manipulating the image?
Sending audio to LKV373 HDMI extenders (2021)
11–20 of 31 posts
Re: Sending audio to LKV373 HDMI extenders (2021)
#12Earlier quoted context omitted.
Well, for one, the fact that it's streaming frames as motion JPEG...
Where do you see that? I quickly glanced at the Amazon listing, and saw nothing about this. I could have glanced too quickly and missed it, but it just seems like a totally strange thing for it to do.
Re: Sending audio to LKV373 HDMI extenders (2021)
#13Earlier quoted context omitted.
Because a 1080p60 video stream is about 3Gb/sec on the wire uncompressed like happens over HDMI. 1920w * 1080h * 3colorbytes * 8bits/byte * 60fps = 2,985,984,000 bits/sec.
Okay, but the original signal is not RAW uncompressed either. It's just a serial signal, so converting that into IP packets is pretty much all I'm assuming this is doing and then converting those back to an HDMI formatted signal on the other end. The only thing different about this unit from others is that it's actually turning them into actual network traffic to connect to an existing network.
HDMI is in fact the RAW color values, uncompressed. Each of the color channels are serial, but that doesn't really change anything about the raw bitrate.
Re: Sending audio to LKV373 HDMI extenders (2021)
#14Earlier quoted context omitted.
Why do you assume the signal is being recompressed or in any other way manipulating the image?
Because a 1080p60 video stream is about 3Gb/sec on the wire uncompressed like happens over HDMI. 1920w * 1080h * 3colorbytes * 8bits/byte * 60fps = 2,985,984,000 bits/sec.
Re: Sending audio to LKV373 HDMI extenders (2021)
#15Earlier quoted context omitted.
Because a 1080p60 video stream is about 3Gb/sec on the wire uncompressed like happens over HDMI. 1920w * 1080h * 3colorbytes * 8bits/byte * 60fps = 2,985,984,000 bits/sec.
Much closer to 5 Gbps when you factor in horizontal/vertical blanking + TMDS 8b10b encoding.
Re: Sending audio to LKV373 HDMI extenders (2021)
#16Earlier quoted context omitted.
Because a 1080p60 video stream is about 3Gb/sec on the wire uncompressed like happens over HDMI. 1920w * 1080h * 3colorbytes * 8bits/byte * 60fps = 2,985,984,000 bits/sec.
Much closer to 5 Gbps when you factor in horizontal/vertical blanking + TMDS 8b10b encoding.
Re: Sending audio to LKV373 HDMI extenders (2021)
#17Earlier quoted context omitted.
Much closer to 5 Gbps when you factor in horizontal/vertical blanking + TMDS 8b10b encoding.
That’s very doable on a 10gb Ethernet network which is becoming more and more normal.
Re: Sending audio to LKV373 HDMI extenders (2021)
#18Earlier quoted context omitted.
Much closer to 5 Gbps when you factor in horizontal/vertical blanking + TMDS 8b10b encoding.
That’s very doable on a 10gb Ethernet network which is becoming more and more normal.
Re: Sending audio to LKV373 HDMI extenders (2021)
#19Earlier quoted context omitted.
Okay, but the original signal is not RAW uncompressed either. It's just a serial signal, so converting that into IP packets is pretty much all I'm assuming this is doing and then converting those back to an HDMI formatted signal on the other end. The only thing different about this unit from others is that it's actually turning them into actual network traffic to connect to an existing network.
> Okay, but the original signal is not RAW uncompressed either. HDMI is in fact the RAW color values, uncompressed. Each of the color channels are serial, but that doesn't really change anything about the raw bitrate.
Re: Sending audio to LKV373 HDMI extenders (2021)
#20Earlier quoted context omitted.
Okay, but the original signal is not RAW uncompressed either. It's just a serial signal, so converting that into IP packets is pretty much all I'm assuming this is doing and then converting those back to an HDMI formatted signal on the other end. The only thing different about this unit from others is that it's actually turning them into actual network traffic to connect to an existing network.
> Okay, but the original signal is not RAW uncompressed either. HDMI is in fact the RAW color values, uncompressed. Each of the color channels are serial, but that doesn't really change anything about the raw bitrate.
HDMI video signal is uncompressed but not raw.