MPEG2 I frame vs MJPEG

[marcorocchini]

what is better for the max quality results?

is no important file size, is important only the best quality of editing

thanks to all

[jagabo]

They're nearly the same. Of course, what settings you use makes the difference.

[marcorocchini]

and what is the best .h264 encoder for you jagabo?

[jagabo]

and what is the best .h264 encoder

x264.

[marcorocchini]

and what is the best .h264 encoder

x264.

General
Complete name : D:\gatteo\C0010.mxf
Format : MXF
Commercial name : XDCAM HD422
Format profile : OP-1a
Format settings : Closed / Complete
File size : 78.3 MiB
Duration : 10s 880ms
Overall bit rate : 60.3 Mbps
Encoded date : 2013-05-24 21:40:57.000
Writing application : SONY Opt 1.22
Writing library : SONY Opt 1.22

Video
ID : 2
Format : MPEG Video
Commercial name : XDCAM HD422
Format version : Version 2
Format profile : 4:2:2@High
Format settings, BVOP : Yes
Format settings, Matrix : Custom
Format settings, GOP : M=3, N=12
Format_Settings_Wrapping : Frame
Duration : 10s 880ms
Bit rate : 50.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.965
Stream size : 64.8 MiB (83%)
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

I have download and install the x264VFW codec

Please can you tell me what is the best setting to encode in high quality?

[jagabo]

Preset: Placebo
CRF Rate Factor: 0

[poisondeathray]

what do you need it for ?

x264 CFR 0 is lossless (no quality loss), but not compatible with many editors, poor editing performance (timeline scrubbing slow)

[marcorocchini]

mmm in virtualdub I get error, please can you download the c0020.mxf file in my dropbox and try to encode in virtualdub?

[poisondeathray]

Again, what do you need it for ?

There are tradeoffs in terms of compatibility, compression(filesize), quality, editing performance (decoding speed), encoding speed

Best quality is lossless codecs (e.g. ut video codec, lagarith, huffyuv) , but filesize is large, editing performance is usually slow . UT is probably the best overall, because it's lossless, yet still offers fairly good editing performance

Commonly used editing intemediates are better in editing performance , minimal quality loss e.g. cineform, prores (mac), matrox MPEG I frame , etc....

[marcorocchini]

the h.264/mp4 output is only for the web.

But at now I'm not able to find a codec for the blade 2.2 nle editor

I have try the matrox mpeg 2 I frame HD codec but the 1.0.0.28 build block blade.exe

the 1.0.0.33 build seems work but when import the trascoded file the image was reversed

Seem work the morgan MJPEG codec

while for encoding in H.264 I get many error and I don't able to transcode :=(

[jagabo]

What error?

[poisondeathray]

you probably need to deinterlace , convert it to 4:2:0 for web

(4:2:2 is supported in some versions of flash, but it's probably better idea to convert to 4:2:0 for compatibility)

A very good intermediate on windows is cineform, there is a free version available "go pro cineform studio"

[Brad]

Preset: Placebo
CRF Rate Factor: 0

Oooo you must be feeling MEAN this morning!

[marcorocchini]

you probably need to deinterlace , convert it to 4:2:0 for web

(4:2:2 is supported in some versions of flash, but it's probably better idea to convert to 4:2:0 for compatibility)

A very good intermediate on windows is cineform, there is a free version available "go pro cineform studio"

poisondeathray I would like have a question:

in Virtualdub is possibile to apply a conversion of level from standard to expanded and chroma filering/interpolation

as the Matrox plugin in attachement?

[marcorocchini]

this is the attachement

[poisondeathray]

Not sure, try it out

Personally, I dislike matrox codecs because they are treated as RGB in programs (clipping in a YUV source, unless you correct for it beforehand, or use full or expanded range - but then there is a contrast change) . Other codecs like cineform are treated as YUV, and are better suited for YUV sources

And if you wanted conversion you can have better control over conversions in avisynth



EDIT: I see, you're asking if there is a native vdub filter that has those options such as matrox configuration - the answer is no. With the exception of a few, most filters in vdub work in RGB (you already incur a standard range Rec 601 conversion to RGB before the filter) . To do this in vdub, you would need avisynth beforehand

[pandy]

what is better for the max quality results?

is no important file size, is important only the best quality of editing

MJPEG is not a standard - MPEG-2 is a standard - huge difference - also MPEG-2 can have custom (flat) quantization matrices and can be 10 bit for DCT, also it can have own metadata and fully support interlace (as MJPEG is progressive).
So for quality (and compatibility) MPEG-2 seem to be much better choice than MJPEG.

[Cornucopia]

Plenty of mjpegs that are interlaced.

Scott

[vhelp]

and, matrox has many mpeg2 codec variations and settings. there is a matrox codec suite that can be d/l 'ed, but i forget the exact name of it. i don't think it is in the tools section though. these (below) are what i have in my codec lineup from that matrox codec suite i installed:

Matrox DVCPRO
Matrox DVCPRO HD
Matrox DVCPRO50
Matrox EZ-MXF AVI (playback only)
Matrox HDV (playback only)
Matrox MPEG-2 I-frame
Matrox MPEG-2 I-frame + Alpha
Matrox MPEG-2 I-frame HD
Matrox MPEG-2 I-frame HD + Alpha
Matrox Offline HD
Matrox Uncompressed HD
Matrox Uncompressed HD + Alpha
Matrox Uncompressed SD
Matrox Uncompressed SD + Alpha

[pandy]

Plenty of mjpegs that are interlaced.

Scott

Coded as progressive - TFF/BFF flag not follow neither stored.