|
Lowering bitrate
|
|
|
cad0
Junior Member
|
14. August 2005 @ 17:35 |
Link to this message
|
|
I need to lower the bitrate on a DivX file so I can make it playable on my standalone (Philips DVP642. I'm assuming it's the bitrate cuz right now it won't play at all and it was suggested that many standalones won't play over 900k bitrate?
|
|
Advertisement
|
 |
|
|
|
celtic_d
AfterDawn Addict
|
14. August 2005 @ 19:22 |
Link to this message
|
Should support 4,000 since that is what the DivX specs allow for and I believe that the player is certified?
DivX.com/cgi-bin/divx.cfg/php/enduser/std_adp.php?p_faqid=1709&p_created=1123719501&p_sid=*Yyva1Nh&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MTUmcF9wcm9kcz0wJnBfY2F0cz0mcF9wdj0mcF9jdj0mcF9zZWFyY2hfdHlwZT1hbnN3ZXJzLnNlYXJjaF9ubCZwX3BhZ2U9MSZwX3NlYXJjaF90ZXh0PXByb2ZpbGU*&p_li=&p_topview=1" class="korostus" target="_blank">http://support.DivX.com/cgi-bin/divx.cfg/php/enduser/std_adp.php?...
|
|
cad0
Junior Member
|
14. August 2005 @ 20:45 |
Link to this message
|
Hmm then I'm lost as to why it's not playing. Here's some info
http://www.retailspace4lease.com/temp.html
Packed bitstream: Yes
QPel: No
GMC: Yes (3 warp points)
Interlaced: No
Aspect ratio: Square pixels
Quant type: H.263
I-VOPs: 3109 (1.51%)
P-VOPs: 39706 (19.28%)
B-VOPs: 116849 (56.72%)
S-VOPs: 46333 (22.49%)
N-VOPs: 0 (0.00%)
Max consecutive B-VOPs: 2
1 consec: 44.19%
2 consec: 55.81%
Warp points used:
2: 23.01%
3: 76.99%
This message has been edited since posting. Last time this message was edited on 14. August 2005 @ 20:47
|
|
celtic_d
AfterDawn Addict
|
14. August 2005 @ 23:01 |
Link to this message
|
|
The problem is the 2/3 warp point GMC. Still means re-encoding.
|
|
cad0
Junior Member
|
15. August 2005 @ 09:30 |
Link to this message
|
|
Hmm I tried doing it on Vdub and Vdubmod but I get a "Statsfile not found" error.
|
|
celtic_d
AfterDawn Addict
|
16. August 2005 @ 00:10 |
Link to this message
|
|
If you are doing a two pass encoding. Make sure that you do the first pass before the second.
|
|
cad0
Junior Member
|
16. August 2005 @ 11:11 |
Link to this message
|
Yup that was it thnx. Should I bump up the bitrate as high as possible to still fit in the disc or keep it the same as the original.
On a side note a few questions about TMPGEnc. Have you tried the Noise reduction feature? Is the extra encoding time worth it? And when encoding DivX to mpeg2 (to play DVD on tv) should I keep the resolution the same as original or force it to 720x480.
|
|
celtic_d
AfterDawn Addict
|
16. August 2005 @ 19:30 |
Link to this message
|
If you have the space, up the bitrate.
Make sure that you use the DXN HT profile though, as this enables VBV to keep the max bitrate/bitrate peaks in check.
Also I wouldn't use a bitrate that gives a larger filesize than the first pass.
For noise reduction, I would suggest using AVISynth instead. It is more flexible and also should be faster since most filters can work in YV12.
For compatibility encode at 720x480 or another DVD compliant resolution and author as DVD video.
|
|
cad0
Junior Member
|
16. August 2005 @ 20:28 |
Link to this message
|
|
Where in Vdub is the option to use that profile. Are you referring
to the "Profile @ Level" under configuration. If so I don't see
the profile you're referring to. Only levels are AS @ L_ , ARTS @ L_ , Simple @L_.
Also what do I need to do to use the 2ndpass encoding option. would
I just first encode using Twopass - 1st pass then use the resulting
file to encode using Twopass - 2nd pass. Should I use the same settings (bitrate) for both? Sorry for all the noob questions.
This message has been edited since posting. Last time this message was edited on 16. August 2005 @ 20:40
|
|
celtic_d
AfterDawn Addict
|
17. August 2005 @ 00:01 |
Link to this message
|
|
You need a 1.1.x build to get the extra profiles.
The first pass (unless you play with zones) is preformed at a constant quant 2.
Yep, first pass, then 2nd. Same settings, although you can for instance use VHQ1 for the first and VHQ 4 for the 2nd.
|
|
cad0
Junior Member
|
18. August 2005 @ 09:33 |
Link to this message
|
I must be doing something wrong. The final pass gives me a black vid compressed to 1/3 the size of the original. I haven't tested it on the standalone since I all I saw was a black vid when playing on a comp.
This is wat I did. Opened the orginal file that I merged from 2 files. Encoded using DXN HT NTSC profile Twopass-1stpass. This resulted in the said black vid compressed to 1/3 the size of the original. I then imported the vid I just encoded and used DXN HT NTSC profile Twopass-2ndpass but resulted in the same black vid.
|
|
Advertisement
|
|
|
|
celtic_d
AfterDawn Addict
|
18. August 2005 @ 17:26 |
Link to this message
|
This is because you have discard 1st pass enabled as such the 1st pass AVI doesn't contain any video and is supposed to be black. You shouldn't be using it as the source for your 2nd pass anyway. You should use the same source for both especially since it doesn't sound like you are running any filters so there would be no speed advantage anyway.
So, load video. Run first pass. Run 2nd pass. Don't change the video source inbetween.
|
