HDV
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| '''[[HDV]]''' is a format for recording and playback of '''[[high-definition video]]''' on a DV cassette tape. | '''[[HDV]]''' is a format for recording and playback of '''[[high-definition video]]''' on a DV cassette tape. | ||
| - | Reference | ||
| - | |||
| - | # See Wikipedia [http://en.wikipedia.org/wiki/HDV] | ||
| ==Specifications== | ==Specifications== | ||
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| |} | |} | ||
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| + | == Reference == | ||
| + | # See Wikipedia [http://en.wikipedia.org/wiki/HDV] | ||
| ---- | ---- | ||
Current revision
HDV is a format for recording and playback of high-definition video on a DV cassette tape.
[edit] Specifications
The table below lists three HDV formats: HDV 720p, HDV 1080i and HDV 1080p, this is done for convenience only. HDV 1080p is not officially defined as a separate standard, but is included instead into HDV 1080i specification as optional format. All HDV camcorders that are capable of 1080p recording can also record native 1080i video.
| Format | HDV 720p | HDV 1080i | HDV 1080p |
|---|---|---|---|
| Media | Full-size DV or compact Videotape#Camcorders|DVC cassette | ||
| Video | |||
| Scanning type | progressive | interlaced | progressive |
| Frame aspect ratio | 16x9 | ||
| Frame size in pixels | 1280 x 720 | 1440 x 1080 | |
| Pixel aspect ratio | 1.0 | 1.33 | |
| Video signal | 720/60p, 720/30p, 720/50p, 720/25p, 720/24p | 1080/60i, 1080/50i | 1080/30p, 1080/25p, 1080/24p |
| Video Compression | MPEG2 Video (profile & level: MP@H-14/HL) | MPEG-2|MPEG2 Video (profile & level: MP@H-14) | |
| Sampling frequency for luminance | 74.25 MHz | 55.6875 MHz | |
| Chroma sampling format | 4:2:0 | ||
| Quantization | 8 bits (both luminance and chrominance) | ||
| Compressed video bitstream rate | ~19.7 Mbit/s | ~25 Mbit/s | |
| Audio | |||
| Compression | MPEG-1 Audio Layer II, PCM | MPEG-1 Audio Layer II | |
| Sampling frequency | 48 kHz | ||
| Quantization | 16 bits | ||
| Audio modes and data rate | Stereo (2-channel) at 384 kbit/s (192 kbit/s per channel); optional 4-channel at 96 kbit/s per channel. | ||
| System | |||
| Stream type | MPEG-2 transport stream (MPEG-2 TS) | ||
| Stream interface | IEEE 1394 in alpha mode (also known as FireWire 400 or i.LINK) | ||
| File extension | .m2t (generally) | ||
[edit] Reference
- See Wikipedia [1]
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