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Mac OS X  |  Audio / Video  |  Editors  |  MPressionist HDTV

MPressionist HDTV

MPressionist HDTV - 3.2

MPEG-1/2 analysis for DVD, DVB, HDTV

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All Time: (5.0)
This Version: Not rated (0.0)
Current Version: 3.2
Release Date: 2006-04-07
License: Update
Downloads (this version): 2,001
Downloads (all versions): 3,982
Price: $2997.00

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Product Description:

Digigami MPressionist HDTV is an all-new version of Digigami's premiere MPEG video diagnostic tool. The new version has been extensively optimized for the G4 and G5 processors using the Velocity Engine. The tool gives the broadcast engineer complete access to the video bitstreams in MPEG-2 Transport or Program streams, with built-in demultiplexing features that can extract individual elementary streams from multi-program system multiplex files captured live or directly from encoder sources. MPressionist HD provides access to all sequence, group_of_pictures, and picture layer header values, allowing the engineer to check time code, determine if flags are set correctly and generally double-check bitstream requirements. Works with all DTV video formats, including 1920x1080i, 1280x720p, 704x480i, 720x480p, 720x576i etc. Graphics overlays are superimposed over the moving picture, providing access to both stream-level and picture-level statistics and compression values. Correlate bitrate fluctuations with compression changes.

What's new in this version:

  • Unicode FileName support supporting Japanese, Chinese and long file names
  • Addition to Frame presets for HD-DVD frame sizes
  • Bug fixes

Operating System Requirements:

This product is designed to run on the following operating systems:

  • Mac OS X 10.4 PPC
  • Mac OS X 10.3.9
  • Mac OS X 10.3
  • Mac OS X 10.2

Additional Requirements:

  • Mac OS X 10.2.8 or higher
    30" Apple Cinema Display for 1920x1080i
    20" Apple Cinema Display for 1280x720p (recommended)

Screenshots:

MPressionist HDTV
Here we see an analysis of an actual HDTV broadcast stream. You can see that the hardware encoder is using stuffing to keep the bitrate from dropping. 1280x720p - just barely fits on a PowerBook 17" - fine on an Apple Cinema.		 MPressionist HDTV
The red lines indicate per-macroblock relative quantization. We're also looking at changes in GOP size over the length of the movie, and the 2:3 pulldown cadence. Macroblock 'inspector' reveals all macroblock values in the bitstream.

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MPressionist HDTV ReviewNothing else like it. - Version: 2.0.8, 3/16/2005 06:13AM PST

(1 of 1 users found this comment useful)

bitsrus
I've been using MPressionist HD since it came out. I've found it to be a key tool in my MPEG encoding workflow. I verify virtually every encode with MPressionist to be sure the peak bitrate and quality are what I expected. It's especially valuable for determining if the top_field_first flag is set correctly. I haven't found anything else that gives me the same information.

The developer is very responsive to suggestions and help requests.
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