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Technical analyst exposes `C- 4` gutter journalism Friday, 4 September 2009 - 2:36 AM SL Time |  | |
- C-4 video created from a video camera, not from a mobile phone.
- Sound dubbed: a case study for gutter journalism.
In video coding or broadcasting to create a final video for any occasion it is the practice to start with high quality video first while transcending with editing for a final product. Mpeg4 is a compressed format.
If one considers the Channel- 4 video:
● It says it came from a mobile phone video source. There are only two formats in mobile video formats. One is an old 3GPP format and the other an advanced Mpeg4, H-264 part 10 which is MP4 format which is highly processor intensive encoding and due to this issue, mobile phones in the present markets does not produce high quality videos. Such processors are not that powerful to take good quality video that Channel- 4 claims since channel - 4 video is much high quality than existing Smart phones can create TODAY.
● Within H-264 coding we also have extra component called Motion Vectors (VMC) which are used to predict motion on temporal and spatial domain. The Channel - 4 video have quite high quality VMC(motion Vector) and this VMC came from a video camera and not from a mobile phone source. Also Mobile source also tend to be blocky in nature when it come to motion.
● Since original video is from AVI and QuickTime format, the whole video scenario indicates that ORIGINAL video is of high quality that came from a video camera source since mobile formats does not use AVI or Quicktime which are high quality video formats.
● If they changed the mobile format to AVI or QT then the final video will be of poor quality. In the analysis it was found that the AVI and QT formats are of very high quality.
● Also it is quite explicit that the camcorder video was transferred to a computer for editing and sound was dubbed later and gun shots were not in synchronism with the video and normally audio is always way ahead of the video since video processing takes time and in this case the audio is very late INDICATING a very amateurish video and audio editing.
(Siri Hewawitharana, former head of Cisco`s global broadcast and digital video practice, has held a number of significant business development and technical leadership roles with some of the world`s most successful telecommunication and broadcasting organisations. These include head of systems engineering for Star TV Hong Kong, head of visual communication for OTC and director of engineering for WIN TV. As chief architect of Optus` Network Systems Design Broadcast and Satellite TV operation, Mr. Hewawitharana was responsible for creating and operating Optus` $47 million Pay TV Video Operations Centre.) |
Source(s)
http://www.defence.lk/new.asp?fname=20090903_05 |
DVLADV
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 3 Sep 2009 20:16:51 GMT Report for Abuse
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The source of the tape was not given most probably for safety reasons, but the govt knows that the tapes are authentic and probable source of the leak. Now it wants to prevent further leaks.
Media Minister orders ITN and Rupavahini Chairmen to take custody of video tapes amidst Channel 4 controversy
This urgent order by the Minister to take into custody all tapes both telecast and not telecast has raised queries as to whether this action of the Minister has any connection with the airing of human executions in SL by men in military uniform by Channel 4 in Britain.
Edited By - DVLADV - 3 Sep 2009 20:18:28 GMT |
ShanA
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 3 Sep 2009 20:26:03 GMT Report for Abuse
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DVLADV
This is mere speculation. Why would ITN film any army executions? Doesn't make any sense. Timing of this video release is more suspicious than whatever Minister said. |
DVLADV
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3 Sep 2009 20:40:13 GMT Report for Abuse
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This is mere speculation.
Unless there is an open and transparent independent inquiry the only thing most have is speculations.
Every article that has been published only addresses the camera used not the authenticity of the clip. Even this the author is only speculating why this cannot be from a camera phone. There is no opinion given. |
ShanA
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3 Sep 2009 20:50:48 GMT Report for Abuse
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How can anybody authenticate a video like this unless source is revealed. Nothing is clear in the video in terms of personnel involved.
GoSL is not going to allow anybody come in to investigate. It is time to stop trying... in different ways. VP is dead. |
AnuD
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3 Sep 2009 22:08:15 GMT Report for Abuse
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Remember during the war Tamils released doctored video.
Tamils accused SLA for rape. Actually, Tamils them selves had done that and has threatened even the anti-LTTE tamil diaspora journalists with that threat.
Tamils would have killed a sinhala soldiers or civilians this way for propaganda purposes. |
Piyal
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3 Sep 2009 23:42:30 GMT Report for Abuse
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Unless there is an open and transparent independent inquiry the only thing most have is speculations.
First you guys asked to prove it's a fake, now asking for an independent inquiry,....
What a world,...
Sinhalayas will release more VDOs
Oooops,.. Cat is out of Robbing's bag,... |
EEELamaya
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 4 Sep 2009 01:05:47 GMT Report for Abuse
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Oneside says Mahawansam is a fake... the other side sayd this video is a fake....
Unless there is an open and transparent independent inquiry the only thing most have is speculations.
WHy not combine both cases 'Mahavansam and C-4 video' and let UN hold an inquiry...! |
Roshan2007
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4 Sep 2009 02:27:04 GMT Report for Abuse
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Oneside says Mahawansam is a fake... the other side sayd this video is a fake....
The tamil academics going to produce Mahavamsam in video and broadcast in Channel 4...... |
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3 Sep 2009 21:44:26 GMT 
3 Sep 2009 22:49:57 GMT