FordGT90Concept
"I go fast!1!11!1!"
- Joined
- Oct 13, 2008
- Messages
- 26,263 (4.38/day)
- Location
- IA, USA
System Name | BY-2021 |
---|---|
Processor | AMD Ryzen 7 5800X (65w eco profile) |
Motherboard | MSI B550 Gaming Plus |
Cooling | Scythe Mugen (rev 5) |
Memory | 2 x Kingston HyperX DDR4-3200 32 GiB |
Video Card(s) | AMD Radeon RX 7900 XT |
Storage | Samsung 980 Pro, Seagate Exos X20 TB 7200 RPM |
Display(s) | Nixeus NX-EDG274K (3840x2160@144 DP) + Samsung SyncMaster 906BW (1440x900@60 HDMI-DVI) |
Case | Coolermaster HAF 932 w/ USB 3.0 5.25" bay + USB 3.2 (A+C) 3.5" bay |
Audio Device(s) | Realtek ALC1150, Micca OriGen+ |
Power Supply | Enermax Platimax 850w |
Mouse | Nixeus REVEL-X |
Keyboard | Tesoro Excalibur |
Software | Windows 10 Home 64-bit |
Benchmark Scores | Faster than the tortoise; slower than the hare. |
They choose MPEG-2 for two reasons:
1) it had broad use with DVD so ASIC decoders and encoders were already widely available.
2) it has a lot of error recovery capability (e.g. to recover from scratches on discs) which is an absolute necessity with terrestrial broadcasts.
ATSC 3.0 rollout is going to be very expensive for everyone (producers, distributors, broadcasters, and consumers). It's coming, but slowly.
As you pointed out, 20ish Mb/s isn't much. A single 4K channel is going to need at least 30 Mb/s with HEVC and that's interlaced at 25 fps. They need about 80 Mb/s for 29.97 fps 4:4:4 progressive scan 4K on HEVC. And how many devices can even handle decoding that?
1) it had broad use with DVD so ASIC decoders and encoders were already widely available.
2) it has a lot of error recovery capability (e.g. to recover from scratches on discs) which is an absolute necessity with terrestrial broadcasts.
ATSC 3.0 rollout is going to be very expensive for everyone (producers, distributors, broadcasters, and consumers). It's coming, but slowly.
As you pointed out, 20ish Mb/s isn't much. A single 4K channel is going to need at least 30 Mb/s with HEVC and that's interlaced at 25 fps. They need about 80 Mb/s for 29.97 fps 4:4:4 progressive scan 4K on HEVC. And how many devices can even handle decoding that?
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