Merging VCube, Руководство пользователя

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Appendices : MPEG Settings (MainConcept Encoder) Page 246
VCD (Video CD) — This profile produces MPEG-1 output suitable for burning to a recordable CD in a special format
that can be played in Video CD players, computers and many standalone DVD players. The maximum resolution
for MPEG-1 VCD is 352x288 with 25 frames per second and 352x240 with 30 frames per second respectively.
MPEG-2 — The MPEG-2 format has been created by the Motion Pictures Experts Group, and it enables you to
compress video and audio data with a higher bitrates for best quality using a specific standard. You can save the
format on a computer as well as a normal CD-ROM or DVD, and play it back using a software or hardware decoder.
The MPEG-2 format is used for SVCDs and DVDs.
SVCD (Super Video CD) — This option generates MPEG-2 output suitable for burning to a Super Video CD. This for-
mat is similar to Video CD, but offers higher quality. The disadvantages are that Super Video CDs require more pro-
cessing power when played back on computers. They are generally not as compatible with standalone DVD
players, and they cannot hold as much video as standard Video CDs.
DVD — Please select this MPEG type to produce high quality MPEG-2 output for DVD (Digital Versatile Disc),
which can be played back on normal DVD-Player.
CableLabs _ Produces a very low constant bitrate and can be used for both SD or HD formats
DVB — Is the abbreviation for Digital Video Broadcast, I.e. it is a standardized process for digital video and televi-
sion transmission. Using this method, the video and audio streams are combined. The data will be compressed in
MPEG-2. There are several DVB standards for different transmission methods, such as DVB-T, DVB-S, DVB-C etc.
MicroMV — The MMV format is generated by Sony MICROMV camcorders. The video footage is recorded in
MPEG-2 format with a data rate of 12 MBit. It needs less space in a quality which is only slightly worse than DV.
When you convert video files with the MPEG Encoder into MMV, you can play them back to the MIRCOMV cam-
corder afterwards.
DVHS — D-VHS (Digital Data-Video Home System) is a specific extension of the popular VHS format. It can process
ATSC, HDV and DVB data streams. D-VHS allows digital high-definition MPEG-2 transport streams recordings and
playback.
HDV HD1 (720p) — 720p is a HDV (High-Definition Video) format for digital video, which has been introduced by
several companies (Canon, Sony JVC and Sharp). HD1 has a resolution of 1280x720 pixels progressive (frame
based), and it always has an aspect ratio of 16:9. Depending on the video standard 720p uses 60, 50, 30 or 25
frames per second. HDV is an MPEG-2 format, which can store high-resolution HD video footage on a normal DV
tape.
HDV HD2 (1080i) — 1080i has been developed along with the HDV format 720p, and it is not quite certain yet
which of the two standards will establish itself in the end. HD2 has a resolution of 1440x1080 pixels interlaced
(field based), and is always displayed in 16:9. Depending on the video standard 1080i uses 50 or 60 frames per sec-
ond. HDV is an MPEG-2 format, which can store high-resolution HD video footage on a normal DV tape.
ATSC — This is the abbreviation for Advanced Television Systems Committee, the name of the group, who origi-
nated the standard for digital television in the USA. ATSC offers norm specifications for high-definition digital tele-
vision (HDTV) as well as for normal standard digital television (SDTV) in MPEG format. It supports resolutions such
as 720p and 1080i. The i stands for interlaced (field based), and the p for progressive (frame based).
D10 — Is a professional video format using a I frame every picture. No GOP with a constant bitrate.
XDCAM IMX — Is the Sony version of the D10. Embedded AC3 audio isn't supported by VCube for this format.
XDCAM HD — Is the HD version of the XDCAM IMX. It uses GOP to fit into almost the same bitrate as SD. Embed-
ded AC3 audio isn't supported by VCube for this format.
Inconsistent Settings
Inconsistent settings are highlighted in red in the MPEG settings summary. Render settings or codec settings must
be adjusted to match.
• Mpeg settings using long GOP should be avoided for use in VCube to ensure a responsive seeking.
• MJPEG or DV codecs are preferred because of their intra-frame compression.