Steven White
May 18th, 2005, 08:58 AM
Well, I finally got Premeriere Pro 1.5.1 and can now happily edit HDV. I'm trying to figure out at this point how to effectivley render out WMV-HD via the media encoder... and I'm running into some problems. I have a 1080i project that I want to render to WMV-HD to 1080i, 720p60 and 720p30. There are presets for all of these... however this is what I get:
In 1080i mode, the video renders from the 1080i project just fine, but looks terribly compressed because I can't push the data rate higher than 10000 kbps (this video is undoubtedly VERY hard on compressors - it's hand-held 1080i of a hyperactive kitten - but the original HDV looks excellent). Furthermore, on display the interlacing is completely obvious - I would have thought the media player would be able to deinterlace on playback... I guess not?
In 720p60 mode, rendering from the 1080i project, the result is a 60p project with every 2nd frame idential, and interlacing artifacts up the wazoo. Clearly, the software isn't smart enough to deinterlace the 1080i and render to 60p.
In 720p30 mode, rendering from the 1080i project, the result is the same as the previous one, except there are no repreated frames.
In trying to export to DVD I get similar problems, but I have no indication as to whether the 1080i is being down-converted properly, and I can't re-import the MPEG-2 into either AE or PPro to see what's up with the fields. On playback, it looks like frame-blended 30p.
I do know how to fix this problem the hard way. I could render out the project uncompressed and import it into After Effects. (I can't import Cineform or copy/paste from Premiere, as I don't have Connect/AspectHD). From there, I could make 720p60 and 720p30 compositions. Importing the 1080i file and deinterlacing with upper-field first I could then make a 720p60 and 720p30 to export either uncompressed or with the media encoder directly to WMV. Similarly, I could create a 480p60 project, render that out uncompressed, and then re-render it combining the 60 frames into fields... import this into Encore DVD and transcode for highest quality playback.
What I'm wondering is if there's anyway to do the equivlent in Premiere Pro 1.5.1 - either by creating new projects and importing (I tried this, but couldn't get it to produce 60p in a 720p60 composition). This workflow I describe seems rediculously complicated, and I can't imagine anyone inexperienced with post-production to replicate the workflow without an elaborate tutorial. How the heck are you supposed to be able to make optimized 480i DVDs out of Premiere Pro from HD source?
Suggestions? It's not that I don't love AE and finding workarounds - its that I want to minimize painful render times.
Note: I predict no problems with CF30 as its essentially progressive content.
Also, separate from the Media Encoder is the Export->Movie option, which allows Cineform files. How does this handle the 1080i fields? I notice a 480p60 option... (should I deinterlace on export?... If I don't deinterlace I seem to get field-blending again! If I do deinterlace I get 30p video I think I'm getting 30p in a 60p stream again).
Furthermore, PPro 1.5.1 has very flexible MPEG-2 output settings. Is there a place I could look to essentially duplicate HDCAM specs, HDV (there's no HDV preset), and typical HD broadcast MPEG-2? There are a hell of a lot of settings!
-Steve
In 1080i mode, the video renders from the 1080i project just fine, but looks terribly compressed because I can't push the data rate higher than 10000 kbps (this video is undoubtedly VERY hard on compressors - it's hand-held 1080i of a hyperactive kitten - but the original HDV looks excellent). Furthermore, on display the interlacing is completely obvious - I would have thought the media player would be able to deinterlace on playback... I guess not?
In 720p60 mode, rendering from the 1080i project, the result is a 60p project with every 2nd frame idential, and interlacing artifacts up the wazoo. Clearly, the software isn't smart enough to deinterlace the 1080i and render to 60p.
In 720p30 mode, rendering from the 1080i project, the result is the same as the previous one, except there are no repreated frames.
In trying to export to DVD I get similar problems, but I have no indication as to whether the 1080i is being down-converted properly, and I can't re-import the MPEG-2 into either AE or PPro to see what's up with the fields. On playback, it looks like frame-blended 30p.
I do know how to fix this problem the hard way. I could render out the project uncompressed and import it into After Effects. (I can't import Cineform or copy/paste from Premiere, as I don't have Connect/AspectHD). From there, I could make 720p60 and 720p30 compositions. Importing the 1080i file and deinterlacing with upper-field first I could then make a 720p60 and 720p30 to export either uncompressed or with the media encoder directly to WMV. Similarly, I could create a 480p60 project, render that out uncompressed, and then re-render it combining the 60 frames into fields... import this into Encore DVD and transcode for highest quality playback.
What I'm wondering is if there's anyway to do the equivlent in Premiere Pro 1.5.1 - either by creating new projects and importing (I tried this, but couldn't get it to produce 60p in a 720p60 composition). This workflow I describe seems rediculously complicated, and I can't imagine anyone inexperienced with post-production to replicate the workflow without an elaborate tutorial. How the heck are you supposed to be able to make optimized 480i DVDs out of Premiere Pro from HD source?
Suggestions? It's not that I don't love AE and finding workarounds - its that I want to minimize painful render times.
Note: I predict no problems with CF30 as its essentially progressive content.
Also, separate from the Media Encoder is the Export->Movie option, which allows Cineform files. How does this handle the 1080i fields? I notice a 480p60 option... (should I deinterlace on export?... If I don't deinterlace I seem to get field-blending again! If I do deinterlace I get 30p video I think I'm getting 30p in a 60p stream again).
Furthermore, PPro 1.5.1 has very flexible MPEG-2 output settings. Is there a place I could look to essentially duplicate HDCAM specs, HDV (there's no HDV preset), and typical HD broadcast MPEG-2? There are a hell of a lot of settings!
-Steve