Panasonic AG-HPG20, Технические характеристики

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Incorporating a New AVC-Intra Codec Circuit
The AG-HPG20 comes with a newly
developed AVC-Intra codec board that
greatly lowers power consumption.
AVC-Intra is a new codec that further
advances HD production. It complies
with the MPEG-4 AVC/H.264
international standard based on
advanced image compression
technology, and offers both superb
image quality and highly efficient
compression. It uses an intra-frame
compression system to bring important
advantages to professional editing. The
AG-HPG20 can record in AVC-Intra
100 for maximum picture quality or in AVC-Intra 50, which has a lower
compression rate, for versatile operation. It also supports DVCPRO HD codec
recording.
• AVC-Intra 100: With the same bit rate as DVCPRO HD, this mode supports
full 10-bit recordings with 1920 x 1080 pixels. It enables the AG-HPG20 to
capture master-quality video for high-end video production.
• AVC-Intra 50: This mode delivers video quality very similar to DVCPRO HD,
yet is able to do so at bit rates usually associated with standard definition (e.g.,
DVCPRO 50). AVC-Intra 50’s lower bit rate doubles the recording time per
P2 card over DVCPRO HD and lowers storage requirements for editing.
HD/SD Multi-Format Recording
The AG-HPG20 supports HD/SD multi-formats and multi-codec recording.
See the table below.
AVC-Intra 100 AVC-Intra 50 DVCPRO HD DVCPRO 50 DVCPRO DV
1080/60i
✓ ✓ ✓
1080/50i
✓ ✓ ✓
720/60p
✓ ✓ ✓
720/50p
✓ ✓ ✓
525/60i
✓ ✓ ✓
625/50i
✓ ✓ ✓
*The AG-HPG20 plays back in 24p, 25p and 30p. It also plays P2 content in over 60i/50i, over
60p/50p, pN (native) and pA (advanced). For details, see the specifications at the end of the
brochure.
Down-Conversion/Up-Conversion/Cross-Conversion Output
During playback, the AG-HPG20 can down-convert HD to SD and output it,
letting you view HD content on an SD monitor. The image aspect can be
selected from squeeze, letterbox and side cut. The AG-HPG20 can also
up-convert SD to HD, and cross-convert between 720 and 1080.
High-Quality 16-Bit, 48-kHz, 8-Channel Digital Audio
The AG-HPG20 is SDI embedded audio ready, and records and plays up to
8 channels of 16-bit digital audio with SDI input.
The P2 Card: Reliable, Reusable and with Extended Recording Time
The P2 card offers a large capacity of 64 GB*
(AJ-P2C064AG) in a small, lightweight package.
Its rugged design withstands even harsh
professional use. It is highly resistant to
temperature fluctuations, dust, impact and
vibrations, and is free of the problems that are
common in tapes, such as condensation, head
clogging and dropouts. The P2 card promises solid reliability and excellent
mobility under the often difficult conditions of field recording. Because data is
automatically recorded in blank card spaces, there is no need for cueing and the
risk of accidentally overwriting valuable data is eliminated.
* Total card capacity includes space for data management, such as system data; therefore, actual
usable area is less than the capacity indicated on the card.
Advanced Recording Functions Employing Two Card Slots
In addition to continuous, double-card recording, the AG-HPG20 enables some
useful recording functions that are possible only with memory cards.
• Hot-swap rec: Thanks to the two card slots, you can hot-swap P2 cards for
continuous non-stop recording. With multiple cards you can record for hours
without interruption.
• Loop rec: This function continuously records video data onto available
memory card areas. When the card becomes full, older data is deleted to free up
the recording area, resulting in loss-less, endless recording. When used with
cameras for time-sensitive information gathering like weather and news
reporting, the loop rec function holds the latest video data for a predetermined
time period.
• UMID recording: UMID data input from a camera can be recorded and
played.
Clip Copying and Editing
P2 records a scene as a clip (file). To play back or delete a clip, or to check and
edit its metadata (file information) or add or delete a shot marker, just select the
clip from the thumbnail display on the built-in 3.5" LCD monitor.
The AG-HPG20 also provides a number of functions that are convenient in the
field, including:
• Clip Copy: The two card slots let you copy clips from one P2 card to another.
You can copy only the usable scenes to use the card's capacity more effectively.
• Thumbnail Image Change: By default, the first image in a clip is used as the
thumbnail. At a desired location within a clip, you can change the thumbnail to
a different image.
• Clip Metadata Edit: A clip's metadata can contain such information as the
camera operator's name, reporter's name and shooting location. The AG-HPG20
lets you check this information and edit the text.
• Text Memo: When recording or previewing a clip, you can attach a memo
(similar to a bookmark) at a desired location (up to 100 locations on a frame
basis). Later you can display or delete a memo, or add a new one. The simplified
editing function lets you copy a segment between memos and create a new clip.
Text information can be added to a memo using the AG-HPG20 or a PC* (with
P2 Viewer installed).
• Shot Marker: During or after recording, you can mark each clip with OK, NG
or another designation.
* Read "Notes Regarding the Handling of P2 Files Using a PC" on the back page.
Sample Images of Intraframe Preduction Left: Original image Center: Intra-frame predictive image Right: Difference image obtained from subtracting the intra-frame predictive image from the original image. This shows the high accuracy of intra prediction.
Advanced Recording and Playback Functions from the High-Quality AVC-Intra Codec and P2 Card