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29th September 2010, 11:01 | #1 | Link |
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The most efficient method of 1080i > 720p conversion?
I recently picked up a hauppauge hd-pvr usb capture device to record my xbox 360 game-play footage. I am looking for the most efficient way to go from a 1080i 29.976fps 1920 x 1080 .ts file down to something that would convert to 720p @ 60fps whilst preserving detail but at the same time providing adequate speed...
these clips are most likely going to end up on youtube in 720p res when my final project is finished... thx! |
29th September 2010, 11:40 | #3 | Link | |
23sKiDdOo!
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Please post more information about source and destination and you will get more information. (a TS File means nothing, in can contain AVC,VC1,MPEG2 and so on...) |
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29th September 2010, 17:44 | #7 | Link |
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here is the vid dl link, it is about 79mb in size...
http://www.mediafire.com/?d64wwbhgni7qyek here is some clip info as per mediainfo General ID : 0 Complete name : UFC 1080i.TS Format : MPEG-TS File size : 79.0 MiB Duration : 46s 73ms Overall bit rate : 14.4 Mbps Maximum Overall bit rate : 18.0 Mbps Video ID : 4113 (0x1011) Menu ID : 1 (0x1) Format : AVC Format/Info : Advanced Video Codec Format profile : Main@L4.0 Format settings, CABAC : Yes Format settings, ReFrames : 4 frames Format settings, GOP : M=1, N=64 Codec ID : 27 Duration : 46s 79ms Bit rate mode : Variable Bit rate : 13.3 Mbps Maximum bit rate : 20.0 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 29.970 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Interlaced Scan order : Top Field First Bits/(Pixel*Frame) : 0.214 Stream size : 72.9 MiB (92%) Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177 Transfer characteristics : BT.709-5, BT.1361 Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177 |
29th September 2010, 20:16 | #8 | Link |
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I'm no expert but I learned by myself by searching these forums, maybe you could try QTGMC for the deinterlacing (which is slow but extremely good) and some resizer (Lanczos4, Blackman) down to 720p ?
Last edited by Boulotaur2024; 29th September 2010 at 20:20. |
29th September 2010, 21:35 | #9 | Link |
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Your source is relatively clean in terms of fields, but the capture contains some macroblocking and blurring. For 720p, and given that Youtube will re-encode it anyway and that many people will see it in 480p or 360p, I believe
Code:
DGSource("C:\Users\matt\Downloads\UFC 1080i.dgi",fieldop=0) Load_Stdcall_Plugin("C:\Program Files\MeGUI\tools\yadif\yadif.dll") Yadif(order=1) #30p for Youtube rather than 60p Spline64Resize(1280,720) Edit: You can also crop 4 black pixels from the left if you're so inclined. |
7th October 2010, 16:06 | #12 | Link |
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wow dude your definitely correct as far as youtube butchering the quality...it seems whatever they use to encode the clip with themselves is garbage. Does anyone know the specs of clip footage that would get the least butchered on youtube...something that wouldnt really need to be re-encoded using their processors?
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8th October 2010, 08:26 | #13 | Link | |
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9th October 2010, 06:13 | #14 | Link | |
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I find it useful to resize horizontally first, before bobbing to 60p on my dated machine.
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28th November 2010, 02:57 | #15 | Link |
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Going back to original topic, a proper way to convert 1080i to 720p would be to promote each field to its own frame, doing some interpolation to make up for lost resolution (540-->720). This will preserve the temporal difference between each field present in true interlaced video. This is what hardware scalers and TV stations do.
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28th November 2010, 17:17 | #16 | Link | |
Derek Prestegard IRL
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Derek
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