|
Best Porn Sites | Live Sex | Register | FAQ | Search | Today's Posts | Mark Forums Read |
Computer and Tech Help Discuss hardware, software, applications, malware removal, etc. |
|
Thread Tools |
23rd January 2013, 01:53 | #1 |
Addicted Join Date: Oct 2008
Posts: 171
Thanks: 317
Thanked 197 Times in 93 Posts
|
ConvertXtoDVD questions
I am using ConvertXtoDVD 5.0.0.37 and have tried to convert files with two-pass encoding enabled. It caused the conversion process to take three times as long as it did with single-pass encoding. I am wondering, what exactly does two-pass encoding do? Is it necessary for video files with the following characteristics?
Duration : 1h 37mn Bit rate : 862 Kbps Width : 624 pixels Height : 352 pixels Display aspect ratio : 16:9 Frame rate : 23.976 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Compression mode : Lossy Bits/(Pixel*Frame) : 0.164 Stream size : 603 MiB (86%) Writing library : XviD 1.1.2 (UTC 2006-11-01) and Codec ID : XVID Codec ID/Hint : XviD Duration : 1h 22mn Bit rate : 1 563 Kbps Width : 720 pixels Height : 320 pixels Display aspect ratio : 2.25:1 Frame rate : 23.976 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Compression mode : Lossy Bits/(Pixel*Frame) : 0.283 Stream size : 925 MiB (94%) Writing library : XviD 1.2.0.dev47 (UTC 2006-11-01) Also, what does the VSO Batcher do and how does it work? There is no manual for this program and the information available on VSO's website is sketchy. Thanks for your help. |
The Following User Says Thank You to Jan17Onions For This Useful Post: |
|
23rd January 2013, 05:50 | #2 |
Registered User
Forum Lord Join Date: Nov 2009
Posts: 1,167
Thanks: 508
Thanked 1,697 Times in 795 Posts
|
Removed at request of claimed rights holder.
Last edited by BigJake; 29th March 2013 at 12:43.
|
The Following User Says Thank You to OddBa11 For This Useful Post: |
23rd January 2013, 15:18 | #3 |
Registered User
Addicted Join Date: Jun 2012
Location: Bosnia
Posts: 187
Thanks: 445
Thanked 309 Times in 133 Posts
|
I am also using convertxtodvd, I always use two pass for videos that are longer than 1 hour because a high bitrate isn't possible to fit on a regular DVD, on shorter videos you can go without two pass but use a higher bitrate, its a quality thing.
|
The Following 2 Users Say Thank You to ZeeeK_o For This Useful Post: |
23rd January 2013, 21:32 | #4 |
Addicted Join Date: Oct 2008
Posts: 171
Thanks: 317
Thanked 197 Times in 93 Posts
|
Other ConvertXtoDVD Questions
Thanks for your replies.
What happens when I enable the maximize bitrate option under Encoding? Also, what are the differences between the various filters used for upscaling and downscaling? There is Box, Fast Box, Linear, Fast Linear, Cosine, Spline, Mitchell, Lanczos, Cubit, Hermite, Gaussian, Blackman, Hann, Hamming, SinSh. |
The Following User Says Thank You to Jan17Onions For This Useful Post: |
23rd January 2013, 23:46 | #5 |
Fan of Cairy Hunt
Postaholic Join Date: Mar 2007
Location: Alice's Restaurant
Posts: 5,154
Thanks: 19,782
Thanked 22,958 Times in 4,188 Posts
|
I haven't used ConvertXtoDVD, but I have played around with two pass encoding on a variety of other video apps. Personally I haven't been able to discern any significant increase in quality when I have used two pass encoding.
If you enable maximise bitrate you will probably end up with a very large file. The general rule is the higher the bitrate the better the quality, and the larger the file. However I would qualify that with a couple of points. First - the quality of the original material. If the original material is relatively low quality increasing the bitrate will not improve the quality of the re-encoded image. At best it will maintain the original low quality at it's highest level when re-encoding. Second - there is a law of diminishing returns. There comes a point where further increase in bitrate does nothing to improve quality. Once you go beyond that point you just keep increasing the output file size. Third - the intended purpose of the converted file. Are you going to view the output on a bog standard PC monitor or do you want to view the output on a HD TV. If it is the former you can keep the bitrate relatively low, if it is the latter then you keep the bitrate relatively high. I only recognise two of the filters in your list. Gaussian is generally a term associated with blur effects - e.g. Gaussian Blur, and I would think that filter will give a soft focus effect. Lanzcos is a filter often associated with upscaling videos and images. As I understand it it uses information from preceeding and subsequent frames to improve quality on upscaled videos and it also take longer to encode. Lastly, encoding video is highly technical subject. Most, me included, have to learn by trial and error because we don't have the technical knowledge to fully understand what is going on. So you end up trying things out and make a subjective decision on the results. To save time try encoding small representative sections of vid with different settings (e.g. 1 pass v. 2 pass) and compare the results. |
The Following User Says Thank You to Pad For This Useful Post: |
Thread Tools | |
|
|