PDTV: Difference between revisions
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'''PDTV''' is an [[abbreviation]] short for ''Pure Digital Television''. Often seen as part of the filename of [[TV]] shows shared through [[Peer-to-peer file sharing|P2P]] systems on the [[Internet]]. In this case, PDTV refers not to container, bitrate or dimensions of the video, but the digital nature of the capture source. Alternately European rippers often use the label |
'''PDTV''' is an [[abbreviation]] short for ''Pure Digital Television''. Often seen as part of the filename of [[TV]] shows shared through [[Peer-to-peer file sharing|P2P]] systems on the [[Internet]]. In this case, PDTV refers not to container, bitrate or dimensions of the video, but the digital nature of the capture source. Alternately European rippers often use the label DVB or DVBRip to specify a purely digital rip of a [[DVB]] broadcast and North American rippers use the DSR or DSRip (Digital Satelite Rip) designation. |
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An early PDTV release contained the following description: |
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| ⚫ | ''PDTV'' encompasses a broad array of capture methods and sources, but generally it involves the capture of [[Standard-definition television|SD]] or non-[[High-definition television|HD]] digital television broadcasts without any [[Analog-to-digital converter|analog-to-digital conversion]], instead relying on directly [[ripping]] [[MPEG]] streams. |
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<blockquote>"Basically we capture the mpeg stream as it comes from the satellite. There is no analog processing at any time, the file that tmgenc is fed with, is digital quality, where there is zero loss. Whatmore is that file fed has a dvd-like bitrate (4000-6000). Now you probably have an idea of why we've decided to call it PURE Digital TV-RiP"<ref>Doom9 Video Forum, posted January 4th 2002, quoting a description from the December 10th 2001 release of an episode of the telvision show [[CSI: Crime Scene Investigation|CSI]]. Retrieved 2008-08-23 http://forum.doom9.org/archive/index.php/t-12793.html</ref></blockquote> |
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| ⚫ | ''PDTV'' encompasses a broad array of capture methods and sources, but generally it involves the capture of [[Standard-definition television|SD]] or non-[[High-definition television|HD]]<ref>http://www.economicexpert.com/a/PDTV.html</ref> digital television broadcasts without any [[Analog-to-digital converter|analog-to-digital conversion]], instead relying on directly [[ripping]] [[MPEG]] streams. PDTV sources can be captured by a variety of [[TV tuner card|digital TV tuner cards]] with an available digital feed such as [[QAM tuner|ClearQAM]] unencrypted cable, [[Digital Terrestrial Television]], [[DVB|Digital Video Broadcast]] or other satellite sources. Just as with [[Freeview]] (DVB-T) in the United Kingdom, [[DTV Transition|broadcast television]] in the United States has no barriers to PDTV capture. Hardware such as the [[HDHomeRun]] when connected to an [[ATSC]] (Antenna) or unecrypted [[QAM tuner|ClearQAM]] cable feed allows lossless digital capture of MPEG-2 streams (Pure Digital Television), without monthly fees or other restrictions normally implemented by a [[Set-top box]]. Although different from the [[Analog_hole]], Pure Digital Television capture imposes no technological restriction on what is done with the stream; playback, [[Mashup_(video)|Mash-Ups]] and even recompression/pirated distribution are possible without the permission of the rights holder. |
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| ⚫ | P2P videos label PDTV commonly have resolutionsin 512x384 for fullscreen (4:3) content<ref>512x384 is one quarter of the common display resolution 1024x768 ([[XGA]]) allowing for fast scaling to full screen.</ref>. or 640x352 for widescreen (16:9)<ref> |
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| ⚫ | P2P videos label PDTV commonly have resolutionsin 512x384 for fullscreen (4:3) content<ref>512x384 is one quarter of the common display resolution 1024x768 ([[XGA]]) allowing for fast scaling to full screen.</ref>. or 640x352 for widescreen (16:9)<ref>640x352's width of 640 pixels similarly allows trivial scaling to [[1080p]],[[720p]],[[WUXGA]],[[SXGA]] and [[WXGA]] displays (1920x1080, 1280x720, 1920x1200, 1280x1024 and 1280x800 respectively).</ref>, but these resolutions are not PDTV specific. |
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{{Forms of pirated film releases}} |
{{Forms of pirated film releases}} |
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Revision as of 00:24, 24 August 2008
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PDTV is an abbreviation short for Pure Digital Television. Often seen as part of the filename of TV shows shared through P2P systems on the Internet. In this case, PDTV refers not to container, bitrate or dimensions of the video, but the digital nature of the capture source. Alternately European rippers often use the label DVB or DVBRip to specify a purely digital rip of a DVB broadcast and North American rippers use the DSR or DSRip (Digital Satelite Rip) designation.
An early PDTV release contained the following description:
"Basically we capture the mpeg stream as it comes from the satellite. There is no analog processing at any time, the file that tmgenc is fed with, is digital quality, where there is zero loss. Whatmore is that file fed has a dvd-like bitrate (4000-6000). Now you probably have an idea of why we've decided to call it PURE Digital TV-RiP"[1]
PDTV encompasses a broad array of capture methods and sources, but generally it involves the capture of SD or non-HD[2] digital television broadcasts without any analog-to-digital conversion, instead relying on directly ripping MPEG streams. PDTV sources can be captured by a variety of digital TV tuner cards with an available digital feed such as ClearQAM unencrypted cable, Digital Terrestrial Television, Digital Video Broadcast or other satellite sources. Just as with Freeview (DVB-T) in the United Kingdom, broadcast television in the United States has no barriers to PDTV capture. Hardware such as the HDHomeRun when connected to an ATSC (Antenna) or unecrypted ClearQAM cable feed allows lossless digital capture of MPEG-2 streams (Pure Digital Television), without monthly fees or other restrictions normally implemented by a Set-top box. Although different from the Analog_hole, Pure Digital Television capture imposes no technological restriction on what is done with the stream; playback, Mash-Ups and even recompression/pirated distribution are possible without the permission of the rights holder.
P2P videos label PDTV commonly have resolutionsin 512x384 for fullscreen (4:3) content[3]. or 640x352 for widescreen (16:9)[4], but these resolutions are not PDTV specific.
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- ^ Doom9 Video Forum, posted January 4th 2002, quoting a description from the December 10th 2001 release of an episode of the telvision show CSI. Retrieved 2008-08-23 http://forum.doom9.org/archive/index.php/t-12793.html
- ^ http://www.economicexpert.com/a/PDTV.html
- ^ 512x384 is one quarter of the common display resolution 1024x768 (XGA) allowing for fast scaling to full screen.
- ^ 640x352's width of 640 pixels similarly allows trivial scaling to 1080p,720p,WUXGA,SXGA and WXGA displays (1920x1080, 1280x720, 1920x1200, 1280x1024 and 1280x800 respectively).