VideoHelp Forum




+ Reply to Thread
Results 1 to 15 of 15
  1. Hi,

    I want to encode videos using DV to xVid. Working with DV is not an option. Don't suggest buying a large hard drive, getting a new computer or anything that suggests I should work with DV.

    Would this be a good workflow? ::

    1.capture DV

    2. convert to intermediate codec, h.264 intraframe compression only

    3. work/store h.264 data, delete DV data, finally export to xVid

    would this workflow end up having roughly the same quality as DV directly to xVid?
    does this intermediate codec contribute to a huge degradation in quality?
    is this a reasonable, common practice way to do this?
    is AVC-Intra 100 better to use?

    Any and all answers welcome, just don't suggest I work with and store DV! Thank you.
    Quote Quote  
  2. Don't waste time, just convert straight to XviD, if that's what you want.
    Quote Quote  
  3. Yes, a similar question. But not the same. I've found out x.264 is the best bet for intraframe only compression.
    Quote Quote  
  4. Member hech54's Avatar
    Join Date
    Jul 2001
    Location
    Yank in Europe
    Search PM
    I'm still trying to figure out how you are going to convert to even h264 if you are not willing to work with DV....which also happens to be your source.
    Quote Quote  
  5. Originally Posted by hech54 View Post
    I'm still trying to figure out how you are going to convert to even h264 if you are not willing to work with DV....which also happens to be your source.
    DV to h.264... work with h.264 while editing, convert to xVid for final files/cuts
    Quote Quote  
  6. Member hech54's Avatar
    Join Date
    Jul 2001
    Location
    Yank in Europe
    Search PM
    Originally Posted by anonymous_whatever View Post
    Originally Posted by hech54 View Post
    I'm still trying to figure out how you are going to convert to even h264 if you are not willing to work with DV....which also happens to be your source.
    DV to h.264... work with h.264 while editing, convert to xVid for final files/cuts
    So you are willing to have DV footage stored on your computer at least temporarily?
    Do you know that h264 video is much more difficult to accurately edit than DV?
    Quote Quote  
  7. Member
    Join Date
    Aug 2009
    Location
    United States
    Search Comp PM
    Originally Posted by anonymous_whatever View Post
    is AVC-Intra 100 better to use?
    AVC-Intra 100 is a HD format that takes 50GB per hour whereas DV takes 12GB per hour. For editing standard definition using a 4:2:2 colorspace I would recommend DV50 as the intermediate.
    Last edited by ejolson; 11th Feb 2012 at 03:34.
    Quote Quote  
  8. Originally Posted by hech54 View Post
    Originally Posted by anonymous_whatever View Post
    Originally Posted by hech54 View Post
    I'm still trying to figure out how you are going to convert to even h264 if you are not willing to work with DV....which also happens to be your source.
    DV to h.264... work with h.264 while editing, convert to xVid for final files/cuts
    So you are willing to have DV footage stored on your computer at least temporarily?
    Do you know that h264 video is much more difficult to accurately edit than DV?
    I can have DV footage stored temporarily, yes. That is a necessity here, no matter what route the conversion goes.
    I am aware that h.264 is more difficult, yes. Correct me here if necessary in this:

    Since h.264 can use only intraframe compression, I can use this with no increased difficulty in editing. I would take the DV, use intraframe compression, and still be able to edit easily while maintaining some quality and a smaller file size.

    note that I do realize that h.264 uses intra and inter frame compression, but i have heard it can use only intra frame
    Quote Quote  
  9. Originally Posted by ejolson View Post
    Originally Posted by anonymous_whatever View Post
    is AVC-Intra 100 better to use?
    AVC-Intra 100 is a HD format that takes 50GB per hour whereas DV takes 12GB per hour. For editing standard definition using a 4:2:2 colorspace I would recommend DV50 as the intermediate.
    Excellent to hear a suggestion. So is every frame a keyframe in DV50 video?
    Is the codec available for download anywhere?
    Last edited by anonymous_whatever; 11th Feb 2012 at 05:42.
    Quote Quote  
  10. Member hech54's Avatar
    Join Date
    Jul 2001
    Location
    Yank in Europe
    Search PM
    Originally Posted by anonymous_whatever View Post
    I can have DV footage stored temporarily, yes. That is a necessity here, no matter what route the conversion goes.:
    That is not the impression I got.
    Originally Posted by anonymous_whatever View Post
    Hi,
    I want to encode videos using DV to xVid. Working with DV is not an option. Don't suggest buying a large hard drive, getting a new computer or anything that suggests I should work with DV.
    I thought you were going to use the analog outputs to a computer capture card.
    Quote Quote  
  11. Originally Posted by anonymous_whatever View Post

    Since h.264 can use only intraframe compression, I can use this with no increased difficulty in editing. I would take the DV, use intraframe compression, and still be able to edit easily while maintaining some quality and a smaller file size.
    No, I would re-read that other thread

    h.264 can use intra frame compressoin, and it's easier to edit than long GOP h.264. But intra frame with all the options activated is still more difficult to edit than DV because it's more compressed (more compression means more CPU required to decompress when editing) . Features like CABAC and inloop deblocking for example take a heavy toll on CPU for decoding. You will not like it on a single core, even for SD footage . But if you disable all those features, it becomes almost as bad as older formats compression wise

    Excellent to hear a suggestion. So is every frame a keyframe in DV50 video?
    Is the codec available for download anywhere?
    Yes, intraframe. But you probably don't want this - 2x as large as normal DV. The "50" refers to the bitrate. So lower quality (because it's lossy re-encoding) and 2x the filesize. Lose-lose situation.
    Quote Quote  
  12. Originally Posted by hech54 View Post
    Originally Posted by anonymous_whatever View Post
    I can have DV footage stored temporarily, yes. That is a necessity here, no matter what route the conversion goes.:
    That is not the impression I got.
    Originally Posted by anonymous_whatever View Post
    Hi,
    I want to encode videos using DV to xVid. Working with DV is not an option. Don't suggest buying a large hard drive, getting a new computer or anything that suggests I should work with DV.
    I thought you were going to use the analog outputs to a computer capture card.
    No, no, DV is fine for temporary storage. There are no analog inputs involved. MiniDV with firewire.
    Quote Quote  
  13. Member
    Join Date
    Aug 2009
    Location
    United States
    Search Comp PM
    Originally Posted by poisondeathray View Post
    Yes, intraframe. But you probably don't want this - 2x as large as normal DV. The "50" refers to the bitrate. So lower quality (because it's lossy re-encoding) and 2x the filesize. Lose-lose situation.
    The advantage of DV50 over DV is the 4:2:2 color space. A higher resolution intermediate format can make a quality improvement when compositing, color grading and motion graphics are included in editing. How much editing will you be doing?
    Quote Quote  
  14. Originally Posted by ejolson View Post
    Originally Posted by poisondeathray View Post
    Yes, intraframe. But you probably don't want this - 2x as large as normal DV. The "50" refers to the bitrate. So lower quality (because it's lossy re-encoding) and 2x the filesize. Lose-lose situation.
    The advantage of DV50 over DV is the 4:2:2 color space. A higher resolution intermediate format can make a quality improvement when compositing, color grading and motion graphics are included in editing. How much editing will you be doing?
    Absolutely true, But it not for me

    For chroma, I usually upsample it differently in other programs than an NLE or AE which use low quality point (nearest neighbor algorithm) resample, even from 4:2:2 subsampling . Also I use uncompressed for compositing. Even the smallest DCT artifacts can negatively impact your compositing

    The OP's main goal was to reduce filesize for editing
    Quote Quote  



Similar Threads

Visit our sponsor! Try DVDFab and backup Blu-rays!