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Aug
19
comment What is the relationship between hardware acceleration and DXVA/QuickSync/Cuda?
Yes, the software likely could use the direct technologies and be slightly more efficient if it was to make ideal use of all possible hardware for it's exact purpose, but that's also a lot more labor intensive to maintain and handle different possible roles that can be filled by different hardware. Implementing once with something like DXVA and letting it handle the wireup to hardware makes things much easier for the developer and could potentially result in better overall utilization if the connections to the various other technologies are out of date or less flushed out than DXVA is.
Aug
19
revised What is the relationship between hardware acceleration and DXVA/QuickSync/Cuda?
added 227 characters in body
Aug
19
comment What is the relationship between hardware acceleration and DXVA/QuickSync/Cuda?
@Pressacco not exactly, it isn't just making CUDA or QuickSync calls necessarily. It may be integrated in the driver and may make lower use of the hardware as well. A lot depends on driver support. It's also possible a vendor may put functionality specifically for DXVA calls. I'm not certain as I don't know if DXVA puts any specific requirements that can't be implemented directly in terms of any particular existing hardware API. DirectX in general (and OpenCL like it) are at a more general level designed to be implemented once and work on diverse hardware. CUDA and QuickSync aren't.
Aug
19
comment What is the relationship between hardware acceleration and DXVA/QuickSync/Cuda?
good point about DirectX. I updated my answer below to include a section on APIs as well.
Aug
19
revised What is the relationship between hardware acceleration and DXVA/QuickSync/Cuda?
added 642 characters in body
Aug
19
answered What is the relationship between hardware acceleration and DXVA/QuickSync/Cuda?
Aug
19
comment What is the relationship between hardware acceleration and DXVA/QuickSync/Cuda?
You are basically correct. What exactly is the question? i took a guess at it, but if that isn't what you are looking for, please clarify what you are looking for.
Jul
11
comment Smartphone vs camcorder
Yes. The rest of my post goes over quite a few reasons. Not the least of which is optics. Don't use a phone, just don't. It isn't suited to the task at all.
Jul
11
comment Smartphone vs camcorder
.3846 inches diagonally instead of .5, and actually, it sounds like the article I read may have been wrong. Other sources are saying it is only a 1/3 inch sensor, which means it's only .3333 inches diagonally. This chart gives length and width measurements. As you can see, the area of a 1/2 inch sensor is 30.72 square mm. Comparatively, a 1/3 inch sensor only is 17.28 square centimeters, so it is almost half the size.
Jul
11
comment Smartphone vs camcorder
Yeah, certainly worth mentioning, it just wouldn't be a deciding factor for me personally, just because neither would produce an acceptable result for my tastes, but I agree it is still worth pointing out.
Jul
10
comment Smartphone vs camcorder
Ehh, in either case you really want to do your audio recording separately for best results, so I wouldn't really define the audio as a significant drawback, though you are right that the built in audio on a camera will be better. It's just a bit like saying a car that lets you go 5 miles an hour is better than having to crawl everywhere, neither really gets the job done well.
Jul
9
answered How can i receive video feed from my hardware video switcher to my pc live
Jul
9
answered Smartphone vs camcorder
Jul
9
comment Color calibration with a color chart
@Basj - see the update above. Sorry about the delay.
Jul
9
revised Color calibration with a color chart
added 667 characters in body
Jul
8
comment Detect GoPro camera model from MP4
It is possible that exiftool couldn't read the particular tag maybe, but probably unlikely. I believe EXIFtool is usually pretty complete. Sometimes it outputs a code that may not be human readable, but I don't see any such values.
Jul
7
comment Color calibration with a color chart
Yes, I use the free version. I'll try to post a screenshot and more details tonight when I'm actually home.
Jul
7
answered Detect GoPro camera model from MP4
Jul
7
answered Color calibration with a color chart