Control
Description
playback on devices that support only H.263 standard (for example 3gp video
for iPod or mobile phones).
Insert VBV parameters
Enables insertion of VBV parameters into the encoded stream. Format of
MPEG-4 sequence header allows declaration of the VBV model parameters
(VBV buffer size, average bitrate) used in the video encoding process. The
parameters declaration is optional.
Use GOV headers
Enables insertion of GOV headers into the encoded stream. MPEG-4 video
stream can be devided into Groups Of VOPs (GOV). Every GOV starts with I-
frame that optionally contains GOV and VOL headers. GOV header contains the
time stamp of group beginning and the group structure information. GOV is
named 'open' if it contains B-frames referring to frames from neighbour
groups. It is recommended to insert GOV headers into MPEG-4 video intended
for further editing.
VOL header for every I-
Frame
Enables insertion of VOL headers for every I-frame. The VOL header contains
the main parameters of encoded video stream that are needed for successful
video decoding. VOL headers repeated in the stream allow the video stream
decoding from any position (not only from the beginning). It is recommended
to insert VOL headers into MPEG-4 video intended for network broadcasting.
It is may be needed to turn the option off only when video with very low
bitrate and small GOV is encoded (VOL headers before every I-frame waste
the low bitrate reserve taking it away from video data).
Custom aspect ratio
Allows the non-standard aspect ratio setting.
6.4 MPEG Multiplexer Advanced Settings
The MPEG multiplexer advanced settings allow the user both to adjust the multiplexing process
and to create multiprogram streams.
Figure 47.
Multiplexing Advanced Settings
Elecard Converter Studio
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User Guide
