is this YUV or RGB?

[marcorocchini]

Hi

considering my source https://dl.dropboxusercontent.com/u/39871584/C0020.mxf

I use virtualdub (Virtualdub 1.10.04+FFmpeginputdriverplugin V0.8.1.4) in fast recompress mode to encode video with morgan mjpeg codec with this parameters:



General
Complete name : D:\vd.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 269 MiB
Duration : 36s 600ms
Overall bit rate : 61.7 Mbps
Writing library : VirtualDub build 35491/release

Video
ID : 0
Format : JPEG
Codec ID : MJPG
Duration : 36s 600ms
Bit rate : 61.7 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Original height : 1 088 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
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) : 1.190
Stream size : 269 MiB (100%)

But now I try to use mencoder as this:

mencoder C0020.mxf -ovc vfw -xvfwopts codec=m3jpeg32.dll:compdata=dialog -nosound -o outputMencoder.avi

and set in the dialog the same parameters used in virtualdub

MEncoder sherpya-r36986+g9c99bc1-4.8 (C) 2000-2014 MPlayer Team
success: format: 0 data: 0x0 - 0x106e6e60
libavformat version 55.34.100 (internal)
libavformat file format detected.
[lavf] stream 0: video (mpeg2video), -vid 0
[lavf] stream 1: audio (pcm_s24le), -aid 0
[lavf] stream 2: audio (pcm_s24le), -aid 1
[lavf] stream 3: audio (pcm_s24le), -aid 2
[lavf] stream 4: audio (pcm_s24le), -aid 3
[lavf] stream 5: audio (pcm_s24le), -aid 4
[lavf] stream 6: audio (pcm_s24le), -aid 5
[lavf] stream 7: audio (pcm_s24le), -aid 6
[lavf] stream 8: audio (pcm_s24le), -aid 7
VIDEO: [MPG2] 1920x1080 0bpp 25.000 fps 0.0 kbps ( 0.0 kbyte/s)
[V] filefmt:44 fourcc:0x3247504D size:1920x1080 fps:25.000 ftime:=0.0400
Loading codec DLL: 'm3jpeg32.dll'
Loaded DLL driver m3jpeg32.dll at 10000000
HIC: 2671b98
568 - 568 - 568
Compressor type: 63646976
Compressor subtype: 47504a4d
Compressor flags: 3, version 65536, ICM version: 260
Flags: quality
ICCompressGetFormatSize ret: 68
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
================================================== ========================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 55.52.102 (internal)
Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
================================================== ========================
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
Opening video filter: [flip]
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
[swscaler @ 01474f00]using unscaled yuv422p -> bgr24 special converter
Opening video filter: [expand]
Expand: -1 x -1, -1 ; -1, osd: 0, aspect: 0.000000, round: 1
Starting compression:
Input format:
biSize 40
biWidth 1920
biHeight 1080
biPlanes 1
biBitCount 24
biCompression 0x0 ('')
biSizeImage 6220800
Output format:
biSize 40
biWidth 1920
biHeight 1080
biPlanes 1
biBitCount 24
biCompression 0x47504a4d ('MJPG')
biSizeImage 6220800
Output format after query/begin:
biSize 40
biWidth 1920
biHeight 1080
biPlanes 1
biBitCount 24
biCompression 0x47504a4d ('MJPG')
biSizeImage 6220800
Fontconfig error: Cannot load default config file 0mb A-V:0.000 [0:0]

Fontconfig failed to select a font. Trying without fontconfig...
New_Face failed. Maybe the font path is wrong.
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
Fontconfig failed to select a font. Trying without fontconfig...
New_Face failed. Maybe the font path is wrong.
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
Writing header...
ODML: vprp aspect is 16:9.
Writing header...
ODML: vprp aspect is 16:9.
Pos: 0.1s 3f ( 1%) 0.00fps Trem: 0min 34mb A-V:0.000 [0:0]
[VD_FFMPEG] DRI failure.
Pos: 36.6s 916f (99%) 27.25fps Trem: 0min 293mb A-V:0.000 [67178:0]

Skipping frame!
Pos: 36.6s 917f (99%) 27.28fps Trem: 0min 293mb A-V:0.000 [67178:0]

Flushing video frames.
Writing index...
Writing header...
ODML: vprp aspect is 16:9.

Video stream: 67178.013 kbit/s (8397251 B/s) size: 307339408 bytes 36.600 sec
s 917 frames


Resultant ouputMencoder.avi is:

General
Complete name : D:\outputMencoder.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 293 MiB
Duration : 36s 600ms
Overall bit rate : 67.2 Mbps
Writing application : MEncoder sherpya-r36986+g9c99bc1-4.8
Writing library : MPlayer

Video
ID : 0
Format : JPEG
Codec ID : MJPG
Duration : 36s 600ms
Bit rate : 67.2 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Original height : 1 088 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
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) : 1.296
Stream size : 293 MiB (100%)


But I demand: is shure the outputMencoder.avi is really YUV and not an RGB video file?

If is RGB how can I change the commandline of mencoder to avoid YUV/RGB conversion (or internal hide conversion), can I encode in yuvj422p also to have correct video levels? ouputMencoder.avi have the black too stretched, meanwhile the virtualdub one (vd.avi) is correct

[El Heggunte]

Try adding the switch -vc mpeg12 to the command-line
(according to the manpage at least, -vc is not an "Mplayer-only" option).

Also, instead of opening the MXF file directly, you could use an intermediate Avisynth script

[marcorocchini]

-vc mpeg12 does not work, however I have to achieve a mjpeg file

with avisynt I have installed FFDshow (output YUY2) + LavSplitter to frameserve avisynth

gatto.avs is :
DirectShowSource("d:\c0020.mxf")
ConvertToYUY2()

and then:

mencoder C:\gatto.avs -ss 0 -endpos 50 -ovc vfw -xvfwopts codec=m3jpeg32.dll:compdata=dialog -nosound -o outputMencoder.avi

but seems nothing change, levels are bad.

Hoewever I have try mencoder hoping preserve timecode and vtag=MJPG but also mencoder seems too problematic