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14th March 2013, 22:01 | #11 | |||
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Quote:
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If we're talking about video codecs here then h.264 and wmv 9 are modern ones. If we're talking about container formats then mp4 is a modern one. Quote:
Why people choose mp4 over wmv is beyond me. The mp4 file could be coded with divx/xvid/mpeg-1/2 than the wmv one would be the better choice. If people think wmv codec is old, yes it's old but wmv 9 is pretty new. :P |
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19th March 2013, 15:05 | #12 |
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hmm it seems to complicated.
i have now just installed latest klitecodec pack from http://codecguide.com/ 9.8.2 there is a lot of options in decoding ( i think it means playing -playback). like LAV and ffdshow. and also other point is in which media player are you playing. for me, best so far is daum's potplayer. http://softpedia.com/get/Multime...otPlayer.shtml i can only say 100% sure that when i'm streaming videos online on the website, it is best quality. every time i download it to pc, it is little worse. i dont understand why. i tried to use programs which can download those streaming videos. they download exactly what is playing and in .flv format. it is good, because it is same quality like there, but much less file size. i dont understand how. so there can be few sollutions: 1, files on website, which are downloadable for premium users are ALWAYS worse quality then streaming online. 2, files on website, which are downloadable for premium users are SAME or better quality then streaming online, but I havent correct settings in codecs and in media player. and meanwhile i downloaded all 3 videos from those p0rnpr0s. here are infos from media player: .MPG Format : MPEG-PS File size : 944 MiB Duration : 35mn 52s Overall bit rate mode : Variable Overall bit rate : 3 677 Kbps Video #224 ID : 224 (0xE0) Format : MPEG Video Format version : Version 1 Format settings, BVOP : Yes Format settings, Matrix : Custom Format settings, GOP : Variable Duration : 35mn 52s Bit rate mode : Variable Bit rate : 3 500 Kbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate : 29.970 fps Color space : YUV Bit depth : 8 bits Scan type : Progressive Compression mode : Lossy Bits/(Pixel*Frame) : 0.127 Stream size : 900 MiB (95%) .MP4 Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 File size : 667 MiB Duration : 35mn 52s Overall bit rate mode : Variable Overall bit rate : 2 597 Kbps Encoded date : UTC 2012-10-20 00:55:13 Tagged date : UTC 2012-10-20 00:55:13 Video #1 ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : [email protected] Format settings, CABAC : Yes Format settings, ReFrames : 5 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 35mn 52s Bit rate mode : Variable Bit rate : 2 500 Kbps Width : 950 pixels Height : 536 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 29.970 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.164 Stream size : 641 MiB (96%) Language : English Encoded date : UTC 2012-10-20 00:55:13 Tagged date : UTC 2012-10-20 00:55:13 Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 .WMV Format : Windows Media File size : 681 MiB Duration : 35mn 52s Overall bit rate mode : Constant Overall bit rate : 2 654 Kbps Maximum Overall bit rate : 2 651 Kbps Encoded date : UTC 2012-10-20 01:53:41.395 Video #2 ID : 2 Format : VC-1 Format profile : MP@HL Codec ID : WMV3 Codec ID/Info : Windows Media Video 9 Codec ID/Hint : WMV3 Description of the codec : Windows Media Video 9 - Professional Duration : 35mn 52s Bit rate mode : Constant Bit rate : 2 500 Kbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate : 29.970 fps Bit depth : 8 bits Scan type : Progressive Compression mode : Lossy Bits/(Pixel*Frame) : 0.091 Stream size : 642 MiB (94%) which one is generally, objectively the best quality of video ? it means, i must get just correct settings and player and i will have best quality. the file= data source is best, i must just make it correct to view into my eyes. so which one is best ? |
19th March 2013, 17:41 | #13 | ||
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If the original source is MP4, then MP4 is the best quality. WMV and MPG are just crappy waste of file volume. WMV won't be the original usually. So, if PP is honest and not making up files with no improvement in quality for HD videos, then you want to choose MPG. But personally, I do not think 2500Kbps and 3500Kbps do not make much difference. It is a matter of satisfaction in mind. I can live with Quote:
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20th March 2013, 00:24 | #14 |
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i dont know what was orig file type.
why does it matters ? ty |
20th March 2013, 04:25 | #15 |
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Maybe you cannot know. Because you are not the producer.
Why matter? Because the original has to have the best quality, no doubt.
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20th March 2013, 09:19 | #16 |
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@ Rapier
Choose mp4. Best quality I've seen so far.
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20th March 2013, 13:43 | #17 | |
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1. In this case you would think mpeg -> wmv -> h.264 as the mpeg is the original file. 2. But the encoded files could be of better quality through the use of various filters then the outcome would be wmv -> h.264 -> mpeg. 3. If you play these at their native resolutions then the outcome would be h.264 -> wmv -> mpeg. 4. If you play these files at 1280x720 then it would be wmv -> mpeg -> h.264. 5. If all encodes were done 'correctly' the outcome would be h.264 -> wmv -> mpeg. A lot of ifs, you got all three files so go compare.... |
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20th March 2013, 16:50 | #18 |
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whatever. my computer is fast enough and the video player can handle most formats without issue.
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20th March 2013, 17:18 | #19 |
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I don't like wmv as I find that often the videos will not fast forward nicely in MPC.
So I convert theme to avi.
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Could I suggest that you backup all of your files to an external hard drive and store this offsite. |
20th March 2013, 18:03 | #20 | ||
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Quote:
Aside from that the MPG must be the original, other things you put, well not all of them, but some are doubtful, especially... Quote:
Through every encoding there has to be some data loss; whether you call it improvement or degradation, it is still data loss. To human eyes, some filters make the files have better quality like blur and noise reduction. But actually the original data is lost somehow in the process. So, in terms of data quality, no matter what filter is used, the original is always the best. Other comparisons from 3 to 5, I would say they are relative questions. They may be different in fact. Just take MPG for the best if you can play; otherwise WMV or MP4.
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