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Old 28th August 2014, 07:53   #1  |  Link
jok
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Join Date: Oct 2003
Posts: 37
video door phone xvid (Zoran) compatibility

Hi,

I've got a 9" video door phone that records to avi files with Xvid codec (Zoran). I'm trying to convert other videos in this format but until now with no success.
Here is what mediainfo reports about a file recorded by the video door phone:

Code:
Format                                   : AVI
Format/Info                              : Audio Video Interleave
File size                                : 11.6 MiB
Duration                                 : 31s 974ms
Overall bit rate                         : 3 033 Kbps

Video
ID                                       : 0
Format                                   : MPEG-4 Visual
Format profile                           : Advanced Simple@L5
Format settings, BVOP                    : No
Format settings, QPel                    : No
Format settings, GMC                     : No warppoints
Format settings, Matrix                  : Default (MPEG)
Codec ID                                 : XVID
Codec ID/Hint                            : XviD
Duration                                 : 31s 960ms
Bit rate                                 : 2 962 Kbps
Width                                    : 720 pixels
Height                                   : 540 pixels
Display aspect ratio                     : 4:3
Frame rate                               : 25.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.305
Stream size                              : 11.3 MiB (98%)
Writing library                          : Zoran

Audio
ID                                       : 1
Format                                   : MPEG Audio
Format version                           : Version 2
Format profile                           : Layer 2
Codec ID                                 : 50
Duration                                 : 31s 974ms
Bit rate mode                            : Constant
Bit rate                                 : 64.0 Kbps
Channel(s)                               : 1 channel
Sampling rate                            : 22.05 KHz
Compression mode                         : Lossy
Stream size                              : 250 KiB (2%)
Alignment                                : Aligned on interleaves
Interleave, duration                     : 52 ms (1.31 video frame)
I've tried to convert another video using virtual dub and set Xvid codec with the same settings, than used MPEG modifier to change writing library to Zoran and here is the result:

Code:
Format                                   : AVI
Format/Info                              : Audio Video Interleave
File size                                : 29.6 MiB
Duration                                 : 2mn 5s
Overall bit rate                         : 1 977 Kbps

Video
ID                                       : 0
Format                                   : MPEG-4 Visual
Format profile                           : Advanced Simple@L5
Format settings, BVOP                    : No
Format settings, QPel                    : No
Format settings, GMC                     : No warppoints
Format settings, Matrix                  : Default (MPEG)
Codec ID                                 : XVID
Codec ID/Hint                            : XviD
Duration                                 : 2mn 5s
Bit rate                                 : 1 904 Kbps
Width                                    : 720 pixels
Height                                   : 540 pixels
Display aspect ratio                     : 4:3
Frame rate                               : 25.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.196
Stream size                              : 28.5 MiB (96%)
Writing library                          : Zoran

Audio
ID                                       : 1
Format                                   : MPEG Audio
Format version                           : Version 2
Format profile                           : Layer 2
Codec ID                                 : 50
Duration                                 : 2mn 5s
Bit rate mode                            : Constant
Bit rate                                 : 64.0 Kbps
Channel(s)                               : 1 channel
Sampling rate                            : 22.05 KHz
Compression mode                         : Lossy
Stream size                              : 981 KiB (3%)
Alignment                                : Aligned on interleaves
Interleave, duration                     : 52 ms (1.31 video frame)
But the video doesn't play on the door phone.
FourCC code changer reports XVID codec both on original and converted video.
GSpot on the original file reports: AVI v1.0
So I've tried saving in this old format without success.

Then I've noticed that in the original video there was one keyframe (I-frame) every 20 frame (GSpot report: B->B 0 max; I->I N=20 (100%)). So I've set xvid to produce the same keyframe frequency but the video didn't play.


Then I've tried to modify the original door phone file striping out the audio (direct stream copy with no audio using virtual dub), changing the name, the writing library and four CC code and the video still played on the door phone.

So it is not an audio or four CC problem.


I've no other ideas, please, can anyone help me ?

Thank you a lot.

Best regards,
Jok
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advanced simple@l5, mediainfo, video door phone, xvid, zoran

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