Encoding Requirements and Recommendations
20
HD Encoding Recommendations
1. The recommended encoding bit rate is a minimum of 10 Mbps.
The standard broadcast rate is 19.4 Mbps. The maximum total
bit rate is 40 Mbps. The audio and video PES IDs (PIDS) can
be set in software for multi-stream applications.
2. When encoding it is recommended to:
Set Video PID: e0 (hex-decimal: 224)
Set Audio PID: c0 (hex-decimal: 192)
Standardizing all PIDs ensures that al files may be played back
to back with only minimal adjustments.
3. Audio/video streams cannot be mixed with video-only on the
same channel during playback. It is recommended to encode an
audio track with “tone” if there is no audio present on the
source tape. This will standardize all MPEG files and provide
easy future management of video content.
4. It is recommended that files be at least 30 seconds in length.
5. If files are to be used in cross-channel synchronization, it is
recommended that the files begin with 3-4 seconds of black at
the beginning to allow the files to sync up with each other.
Encoding Software
Use applications such as
Pixel Tools
(www.pixeltools.com.) and
VIDEO CLIPPRO
(www.vitecmm.com) for post-production work.
These guidelines are meant to serve only as information for
professional video studios that do their own encoding.
Pixel Tools
This software creates a video-only transport stream from an AVI
file or an animation sequence of BMP, TGA or TIFF images.
❏
Pixel Tools
can add an audio track with its transport
multiplexor and audio encoder.
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