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7th December 2009, 21:55 | #1 | Link |
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Adobe Encore FORCES transcode
Hello mates,
After encoding with CCE+AviSynth I'm using DGPulldown to flag up the MPEG from 23.976 or 25 to 29.97, but when importing to Adobe Encore a transcode is forced... is someone familiar with this problem? Does this has something to do with the way DGPulldown applies pulldown flags? If so, should I apply pulldown before encoding with CCE? maybe an AviSynth script or something... or which program is similar to DGPulldown (altering MPEG2 RFF/TFF flags + no need to process audio)? I'm pretty sure my files are 100% DVD compliant (I can author with DVD-lab and everything is fine) I thought that maybe it had something to do with Open/Closed GOPs, but I did a test and it doesn't make a difference, except for a warning in DVD-lab, but the DVD is still playable. Thanks. Last edited by juantohu; 8th December 2009 at 23:23. |
7th December 2009, 22:57 | #3 | Link | |
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Quote:
Format : MPEG Video Format version : Version 2 Format profile : Main@Main Format settings, Matrix : Default Duration : 21mn 14s Overall bit rate : 2 925 Kbps Bit rate mode : Variable Bit rate : 2 802 Kbps Nominal bit rate : 9 000 Kbps Width : 720 pixels Height : 480 pixels Display aspect ratio : 16:9 Frame rate : 23.976 fps Standard : NTSC Colorimetry : 4:2:0 Scan type : Progressive Scan order : 2:3 Pulldown Bits/(Pixel*Frame) : 0.338 Stream size : 426 MiB (96%) |
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7th December 2009, 23:32 | #5 | Link |
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Overall quality, Photoshop integration, export as DVD/Blu-ray/Flash, etc...
Besides, I don't know if it's a DVD-lab issue, but my subtitles ALWAYS show earlier, no matter which option I choose (and yes, I'm sure that they are correctly in sync with the video before authoring) ALSO, when I import subs they don't preserve italics, very annoying. Anyway, what's an alternative method or software to DGPulldown? Should I apply pulldown before encoding (with AVS script) or after encoding (DGPulldown or similar)? ...is scan order/frame rate the problem in the first place? what else could cause this forced transcode in Encore? --- EDIT: Frame rate IS the problem. I encoded again using 29.97 as output (source was 23.976) and Encore finally accepted it as DVD compliant! (no forced transcoding) So, Encore doesn't like pulldown flags... I've always encoded using original frame rate and then flagged up with DGPulldown, so this is quite new to me. Last edited by juantohu; 8th December 2009 at 23:08. Reason: Found the answer myself |
8th December 2009, 05:55 | #6 | Link |
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After applying pulldown the resultant m2v should have the new frame rate. The values in your second post don't show that. There are 3 options for handling m2v files that are not 25fps or 29.97fps, transcode, perform pulldown, or reject the file.
Apparently DVD-Lab can add pulldown, and Encore transcodes. Are you sure that DGPulldown is leaving the framerate at 23.976? If so that should be reported to neuron2, but first make sure you are using the latest version. A workaround, if DGPulldown is leaving the frame rate at 23.976, would be to use ReStream or DVDPatcher after DGPulldown to change the framerate in the file header. Last edited by mpucoder; 8th December 2009 at 06:05. |
8th December 2009, 06:10 | #7 | Link | |
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I've encoded using original frame rate (23.976) and then tried DGPulldon, pulldown.exe, CCE pulldown, DVD-lab's pulldown... to flag up to 29.97... and Encore always transcodes my video.
ONLY if I choose 29.97 as output frame rate in CCE then Encore decides not to transcode. It's like Encore saying "no, pulldown flags aren't allowed, only true 29.97". So, what the hell? Quote:
Frame rate : 23.976 fps Scan order : 2:3 Pulldown is that what you're talking about? I will try using DVDPatcher to change the header and then report back. Thanks mate --- EDIT: DVD-lab can add pulldown, but in my case it isn't required because it accepts my CCE>DGPulldown file as DVD compliant, when Encore wants to force a transcode. Yes, I'm using DGPulldown latest version. EDIT 2: OK, I used DVDPatcher to change the header (both first header only and entire file) and the frame rate is still reported as 23.976 fps with 2:3 Pulldown, thus, Encore wants to transcode it. EDIT 3: When applying pulldown with pulldown.exe the output is reported as 29.97 fps but Encore STILL wants to transcode it! Seriously, what am I doing wrong? I'm going mad... Last edited by juantohu; 8th December 2009 at 07:05. |
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9th December 2009, 19:44 | #12 | Link |
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EDIT:
Nevermind my previous post... I was using another program (Bitrate Viewer instead of BitRate Viewer) So, in BRV, I click on GOPs and the "Gop no." column has 2178 rows... the "Pic n." column never goes above 15... is that the max GOP length? Last edited by juantohu; 9th December 2009 at 20:14. |
9th December 2009, 20:23 | #13 | Link | |
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A 15 frame GOP results in 19 frame GOP after pulldown. |
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9th December 2009, 20:36 | #14 | Link |
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I opened my M2V file (MPEG2 at 23.976 fps with 2:3 Pulldown), not the source AVI.
What did you mean? that 15 frames is already too high for the source or for the resultant M2V? ..if the later, then I guess I'll have to encode again. Which settings do I have to change in CCE-SP2 in order to reduce GOP length? or is it something that I have to put in my AVS script? EDIT: AGAIN... nevermind that previous post haha! I just realized the obvious regarding AVIs and GOP length... anyway, that previous question didn't have any sense. So, then I guess I'll have to encode again. Which settings do I have to change in CCE-SP2 in order to reduce GOP length? or is it something that I have to put in my AVS script? Last edited by juantohu; 9th December 2009 at 20:48. Reason: duh! |
9th December 2009, 20:43 | #15 | Link |
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opening .m2v in gspot will also tell you that information about GOP length, M/N and if it's DVD compliant
I just tested 2 clips, 1 from HCenc and 1 from CCE and both are accepted by Encore CS4 with NTSC DVD . They both read "don't transcode" in the project window In CCE, there is a checkbox for DVD, and that should make the settings compliant. I let CCE do the pulldown, and I let HCEnc do it as well The other things to remember are to disable the line offset and TFF in the advanced settings, and check progressive in the picture quality, and I usually diable low pass filter as well These are all listed in the manual Last edited by poisondeathray; 9th December 2009 at 20:46. |
9th December 2009, 20:58 | #16 | Link | |
Spielberger
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You shuld do it as poisondeathray suggested, check "for DVD" in Video setting...CCE will do it for you. To reduce GOP length manually modify N/M value in "Advanced settings" from 5 to 4 (results in GOP length of max 12 frames). |
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9th December 2009, 22:09 | #17 | Link | |||
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*the CCE 2.70 guide says "Keep Output top field first stream checked unless you have a bottom field first stream (rare and normally only interlaced content).", that's why I have it enabled. I will try checking "for DVD" and/or changing N/M from 5 to 4 and then post the results. --- EDIT: Man... that "Don't Transcode" message sure makes me feel happy You were right, checking "for DVD" did the trick... that checkbox is equivalent to checking "Pulldown", "Inv 3:2 Pulldown" and changing N/M value to 4. So, now my question is: if I ONLY change N/M value from 5 to 4 in CCE, and then apply pulldown with DGPulldown... would that be different than applying pulldown directly in CCE? Does DGPulldown apply pulldown in an "unique" way or something like that? Quote:
Last edited by juantohu; 9th December 2009 at 22:41. |
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9th December 2009, 22:49 | #18 | Link | ||||
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avisynth, cce, dvdlab, encore, transcode |
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