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bio website cafepress.com/2050inc
location Michigan
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visits member for 2 years, 1 month
seen 16 mins ago

Jul
21
comment What do you call the video effect where water looks like it's standing still when filmed
From old western films, this became known as the 'wagon wheel' effect, where the spokes of a forward-moving wagon's wheels often appeared to move backward. When that happens it's technically equivalent to 'aliasing' since the sampling frequency (frame rate) is insufficient to resolve the frequency of interest -- it violates the Nyqvist limitation.
Jul
17
reviewed Approve suggested edit on Shutter slower than video FPS
Jul
17
comment Stock footage search service
I don't know, but if there isn't you might consider Amazon en.wikipedia.org/wiki/Amazon_Mechanical_Turk which is designed for this sort of work. It's not free.
Jul
17
answered Shutter slower than video FPS
Jul
17
comment How much GB or TB is 1 hour of raw uncompressed Ultra HD film?
Heh, this pops up again a year later. And yes, I slipped and computed the per minute size -- multiply by 60 to get the hourly rate.
Jul
16
answered Will I lose quality when converting avi to mkv?
Jul
7
reviewed Approve suggested edit on How can I become a video editor with Adobe Premiere?
Jul
2
comment Cannot capture (HDMI) output of Graphics Card with BlackMagic UltraStudio
>> So there is no solution for my problem? << I'm only speculating here. I have no idea whether the issue is HDCP-related, I was commenting to discover if perhaps it is.
Jul
2
comment Cannot capture (HDMI) output of Graphics Card with BlackMagic UltraStudio
I don't believe there are GFX cards without HCDP. I suspect they all use a combo HDMI/HDCP chip for output.
Jul
1
comment Cannot capture (HDMI) output of Graphics Card with BlackMagic UltraStudio
Assuming frame rate and size are the same, it's possible that the GPU output is encapsulated in HDCP, where the camera's is not. Did you try using a Bluray player playing copyrighted content as the source? That would have HDCP for sure.
Jul
1
reviewed Approve suggested edit on How can I achieve the Ken Burn Effect with greater control or in other software?
Jun
26
answered FFmpeg encod set of time stamped images as Iframes
Jun
25
answered FFmpeg clarification “position of frame”
Jun
24
awarded  Yearling
Jun
24
answered Are Mini DV and Digital 8 considered film?
Jun
17
comment ffprobe - why total bitrate is greater than sum of video and audio bitrates?
As AJ points out, the container may carry other information. Some of this can be considered metadata, and some of it is actual data other than video or audio. The MediaInfo app would likely expose more of that than ffprobe.
Jun
17
answered ffprobe - why total bitrate is greater than sum of video and audio bitrates?
Jun
11
comment Output file longer than source with ffmpeg
I don't know the mechanics of it (how ffmpeg handles it), but you can encode using a 'closed GOP' structure or an unclosed one. If you opt that every GOP is closed, the last GOP may be padded out to its native length. In some situations it's mandatory to end with a closed GOP, so this may be the default here.
Jun
10
answered ffmpeg: Normalize audio in an avi file
Jun
10
comment ffmpeg: Normalize audio in an avi file
I sounds as if the OP has sections with different levels, in which case normalizing won't help since the relative volume of the sections won't change. A compressor would be the automated way to do it, but usually there's no good substitute for manual intervention.