Rendering Help!

kjtyler7 wrote on 4/20/2012, 5:32 PM

I have to render to these specs exactly:

Format : MPEG-PS ???(PS?)
File size : 5.99 GiB
Duration : 24mn 18s
Overall bit rate : 35.3 Mbps (may be lowered down to 25mbps)

Video
ID : 224 (0xE0) ???
Format : MPEG Video
Format version : Version 2
Format profile : Main@High
Format settings, BVOP : Yes ???
Format settings, Matrix : Default ???
Format settings, GOP : M=3, N=15 ???
Duration : 24mn 18s
Bit rate : 34.3 Mbps
Maximum bit rate : 35.0 Mbps
Width : 1920 pixels
Height : 1080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Standard : NTSC
Color space : YUV ???
Chroma subsampling : 4:2:0
Bit depth : 8 bits ???
Scan type : Interlaced ???
Scan order : Top Field First
Compression mode : Lossy ???
Bits/(Pixel*Frame) : 0.552 ???
Stream size : 5.83 GiB (97%)
Color primaries : BT.709 ???
Transfer characteristics : BT.470-2 System M ???
Matrix coefficients : BT.470-2 System B, BT.470-2 System G ???

Audio
ID : 192 (0xC0)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Duration : 24mn 18s
Bit rate mode : Constant
Bit rate : 256 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy ???
Delay relative to video : -67ms
Stream size : 44.5 MiB (1%)

I know most of this, but some of it is greek to me. I put "???" next to the ones that i don't understand, or understand how to make them happen in Vegas Pro. Then, when i think i have the settings right, vegas tells me, everytime, "An error occurred while creating the file pilot cs.mpg. The reason for the error could not be determined."

I'm dying here. Any help is appreciated.

Comments

Leee wrote on 4/20/2012, 6:02 PM

Here are some links and basic information to help with some of the items you put ??? next to. Mostly they are talking about video format and codec specifications. For example BT.470-2 System B refers to MPEG codec settings for YUV Color Space settings.
As to why you are not getting this configuration to work, I'll leave that to those who are more knowledgeable in this area. Sometimes I use TMPGEnc to convert files to various formats (or specific settings) if Vegas is being uncooperative.

A good beginners guide to MPEG definitions and settings:
http://www.fh-friedberg.de/fachbereiche/e2/telekom-labor/zinke/mk/mpeg2beg/beginnzi.htm

Some additional definitions and meanings for mpeg-ps:
http://www.videoconverterfactory.com/glossary/mpeg-ps.html

Lossy refers to the quality of the picture and of codecs that use compression to make the file size smaller and more manageable. An uncompressed AVI file is lossless, it doesn't compress the file, but MPEG does, therefore it's considered lossy. Too much compression and you start to see big square blocks where the video moves on the screen.

MPEG-4 Video encoding:
The video is composed of frames called VOPs (Video Object Planes). MPEG-4 offers 3 ways to
encode a VOP:
• VOPs of type I (Intra) are encoded independently from other VOPs.
• VOPs of type P (Predictive) are predicted by motion compensation from the I-VOP.
• VOPs of type B (Bidirectional Interpolated) are predicted from two references, namely a future one
and a past one. These references can be P-VOP or I-VOP.

Former user wrote on 4/20/2012, 6:23 PM

PS= Program Stream.

The MainConcept MPEG encoder does not appear to allow for Transfer Characteristics and Matrix Coefficient to match those settings. Thes are on the Advanced Video tab.

Interlace- Interlaced instead of Progressive with Upper Field First.

I believe it defaults to YUV 4:2:0 color space.
BVOP - use the default
GOP- use the default
8 bits-default

kjtyler7 wrote on 4/21/2012, 9:18 AM

Thanks Dave. Helpful stuff. Now if someone could give me some insight as to why i'm receiving this error message, i can power through this.

Much appreciated.