Irrilevant ? If i burn a dvd with a 24p stream it is not going to work...if you call this irrilevalt...go figure...
Yes. READ. What one
CALLS IT is irrelevant. Shakespeare:
What's in a name? That which we call a rose by any other word would smell as sweet. Get it? There are 48 data fields per second in the stream. Doesn't matter if you call it 60i/48i/24i/24p. Newman, Bohdy, and I are all referring to the same thing.
Here's
another way of wording this:
On DVDs, telecined material may be either hard telecined, or soft telecined. In the hard-telecined case, video is stored on the DVD at the playback framerate (29.97 frames/sec for NTSC, 25 frames/sec for PAL), using the telecined frames as shown above. In the soft-telecined case, the material is stored on the DVD at the film rate (24 or 23.976 frames/s) in the original progressive format, with special flags inserted into the MPEG-2 video stream that instruct the DVD player to repeat certain fields so as to accomplish the required pulldown during playback. Progressive scan DVD players additionally offer output at 480p by using these flags to duplicate frames rather than fields.
NTSC DVDs are often soft telecined, although lower-quality hard-telecined DVDs exist.
You are talking about hard telecine. We are talking about soft telecine that is found in virtually all Hollywood DVDs. There are only 48 fields of data per second. Your split C frame never occurs, and compression is never an issue.
No you haven't. Doesn't matter if it's 24fps progressive or 24fps interlaced. It's just semantics. Either way, the C frame artifacts never occur.
Here's another place you were wrong:
Bohdy said:
They are used by the DVD player to actially apply pulldown after decoding, to turn 24fps video into 30p/60i video for output.
Here is where you are wrong, completly wrong, the flags are use for
removing the pulldown, for recovering the original 24p from the 60i source.
Really? Then why has
this guy written a program to insert the very same flags that Bohdy was talking about?
Are you so conceited that you think your interpretation of David Newman is correct and EVERYONE else on the internet is wrong? Or do you think just maybe your interpretation is wrong, and everyone else including Newman is correct?
DVHS? It only records the bitstream found in an HDTV broadcast, which had 24p at the start. DVHS movies are the same situation as DVDs. Firewire? It just transfers the raw bitstream whether it's 48i or 60i. No firewire device uncompresses 48i, inserts extra frames, then recompresses it into a 60i mpeg2 stream. In other words, no firewire device changes soft telecine to hard telecine. Neither firewire nor DVHS affect anything here unless of course you're again talking about camcorders. In fact firewire is even better because a native 24p display device gets all the data.
When you said you prefer 24p, was that comparing standard telecine 1080i with 1080p/24,
both on the same native 24p display like the Pioneer? I bet you couldn't tell the difference there.
--------------------------------------------------------------------
Anyway, I'm through with you.
You were wrong saying Hollywood DVD's don't have a 23.976 fps data stream.
You were wrong saying flags aren't used to do the 3:2 pulldown in the DVD player.
You were wrong about the C frame compression issue affecting most DVD's.
You incessantly argued interlaced 24fps vs. progressive 24fps, when both invalidated your C frame issue equally.
You were wrong about firewire and DVHS making a difference.
You haven't said
why standard cadence can still cause issues.
Bye. I hope you've learned something. Keep working on that English and it'll get better for sure.
