Hi everyone,

from my sony pdw-f800 pal camera I have some problem with nle (in sync blade 2.2): installing the mainconcept directshow filter (in windows xp) I can import directly to the timeline the .mxf file (only the video part) but if I have big files (e.g. 2 or 3 o 10 or 15GB) the importing process is extremly slow.

This is strange because if I import a .avi file of 25GB encodec in Matrox M-Jpeg SD, the importing time is 1-2 seconds. When I try to import a .mxf file of 10GB it may necessary 20-30 minutes.


The same problem I have if I try import .mxf files in Virtualdub or anothers: seems Virtualdub try to "seek" the entire file, I don't know what it have to do, the CPU is very busy and for a file .mxf of 10 GB is necessary also 20-30 minutes to the virtualdub or avisinth.

If I try to open a file .avi Matrox Mjpeg (SD) encoded of 25GB, virtualdub need of 1-2 second to load it.

So why the system is so slow to load/open this .mxf hd files?

An example is this:

General
Complete name : D:\C0020.mxf
Format : MXF
Commercial name : XDCAM HD422
Format profile : OP-1a
Format settings : Closed / Complete
File size : 263 MiB
Duration : 36s 600ms
Overall bit rate : 60.3 Mbps
Encoded date : 2013-05-24 22:12:18.000
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 : 36s 600ms
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 : 218 MiB (83%)
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio #1
ID : 3
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Duration : 36s 600ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 5.03 MiB (2%)

Audio #2
ID : 4
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Duration : 36s 600ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 5.03 MiB (2%)

Audio #3
ID : 5
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Duration : 36s 600ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 5.03 MiB (2%)

Audio #4
ID : 6
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Duration : 36s 600ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 5.03 MiB (2%)

Audio #5
ID : 7
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Duration : 36s 600ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 5.03 MiB (2%)

Audio #6
ID : 8
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Duration : 36s 600ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 5.03 MiB (2%)

Audio #7
ID : 9
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Duration : 36s 600ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 5.03 MiB (2%)

Audio #8
ID : 10
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Duration : 36s 600ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 5.03 MiB (2%)

Other #1
ID : 1
Type : Time code
Format : MXF TC
Time code of first frame : 01:34:21:15
Time code settings : Striped

Other #2
Type : Time code
Format : SMPTE TC
Muxing mode : SDTI
Time code of first frame : 01:34:21:15

I have to upload this file in my dropbox: (www.dropbox.com logon into it with this credential: user: mrocchini@email.it password is: centrale forlder: "public")

I would like to achieve this:

1) convert a .mxf file (e.g. c0020.mxf) so I achieve the same file but without audio (video only)

2) convert a .mxf file (e.g. c0020.mxf) so I achieve the same file but only with audio PCM 48Khz CH1 and CH2 as a normal interlive .avi file that have audio left and right. So NO timecode, and no extra information.

3) convert the video part of the C0020.mxf file so I achieve a C0020.AVI in matrox mjpeg codec (is possible?)

4) convert the C0020.mxf so I achieve audioC0020.WAV that contain only the CH1+CH2 audio (PCM 48Khz)

Does anyone know I can do this^?

thanks!!