To generate
a MPEG (*.mpeg, *.mpg) file, it is necessary to set the output format
properly. For that open
the "Profile Settings" dialog window (or make use of the "Properties"
window). In the Main section select "MPEG, Moving Picture Experts
Group" from the "Output
Format" list:
Video
encoding parameters.
Go to the Video
section. The following parameters are available here:
Codec - the codec that will be used
for compression of the video stream. This parameter can take one of the
following values:
MPEG
- 1.
MPEG
- 2.
Bitrate
- the number of bits used for representation of one second of the encoded
video stream. The higher its value, the larger the produced file size
and the higher the produced file quality. We guess the optimal value can
be found in an experimental way only. However, it is necessary to remember
that the ratio between the produced file size and quality also depends
on the selected frame
rate and frame size.
Motion
search precision - the precision of the motion vector search. This
parameter affects the ratio between the produced file quality and the
time taken for editing. It can take one of the following values:
Lowest Quality (very
fast).
Low Quality (fast).
Normal (normal)
- recommended.
High Quality (slow).
Highest Quality
(very slow).
Search
Type - the type of the motion vector search. This parameter can
take one of the following values:
Estimate Search
- if selected, the algorithms of approximate search will be used, which
will allow to save time. Error probability is not large at that, therefore
we recommend to use this search type in most cases.
Full Search - if
selected, the algorithm of exhaustive search will be used, which will
allow to detect the motion vector with 100% precision. In this case error
probability is equal to zero, but the search will take more time.
Depending on the selected codec, the following
parameters may be available:
Encoding
mode - the encoding mode. This
parameter can take one of the following values:
Non-interlace - recommended.
Interlace.
Top Field.
Bottom Field.
Video
format - the video format. This
parameter can take one of the following values:
Component.
PAL.
NTSC - recommended.
SECAM.
MAC.
Unspecified.
Ouptut
YUV - the output YUV format. This
parameter can take one of the following values:
YCbCr - recommended.
CCIR601.
Quantization
matrix - the quantization matrix. This
parameter can take one of the following values:
Default - recommended.
Mpeg Standard.
CG/Animation.
YUV
format - the YUV format. This
parameter can take one of the following values:
4.2.0 - recommended.
4.2.2.
4.4.4.
DC
component precision - the number of bits used for encoding of a
video unit. This parameter
can take one of the following values:
8 bits.
9 bits.
10 bits.
11 bits.
Audio encoding
parameters.
Go to the Audio
section. The following parameters are available here:
Codec - the codec that will be used
for compression of the audio stream. This parameter can take one of the
following values:
Mpeg
Audio Layer - 1.
Mpeg
Audio Layer - 2.
Sampling
Rate - the number of samples used for representation of one
second of the audio stream.This
parameter can take one of the following values:
48000 Hz.
44100 Hz
32000 Hz
Channel
- the number and type of channels in the audio stream. This
parameter can take one of the following values:
Stereo.
Mono.
Join Stereo
Dual Channel
Bitrate
- the number of bits used
for representation of one second of the audio stream.
Error protection - if enabled, error
protection will be turned on during encoding.
Original flag - if enabled, the produced
file's audio stream will be marked as original.
Copyright flag - if enabled, the produced
file's audio stream will be marked as copyright protected.
Private flag - if enabled, the produced
file's audio stream will be marked as closed.
De-emphasis flag - the type of de-emphasis.
This parameter can take one of the following values:
