Apple dvd studio pro 4.2 手册
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Native Support for Additional H.264 Formats
DVD Studio Pro can now natively import additional H.264 high definition (HD) video
formats. These assets are not reencoded using the embedded MPEG encoder.
formats. These assets are not reencoded using the embedded MPEG encoder.
The specific formats supported are:
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720p at 23.98 fps and 720p at 29.97 fps:
You can now import H.264 assets with these
frame rates into NTSC HD projects. DVD Studio Pro adds frame-doubling flags during
the compile process to make them conform to the HD DVD specification.
the compile process to make them conform to the HD DVD specification.
Note:
720p at 59.94 fps H.264 assets were already supported in NTSC HD projects.
Important:
720p at 24 fps (not 23.98 fps) and 30 fps (not 29.97 fps) are not native and
will be encoded. Additionally, 720p at 23.98 fps and 720p at 29.97 fps HDV formats
are not native and will be encoded.
are not native and will be encoded.
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720p at 25 fps:
You can now import H.264 assets with this frame rate into PAL HD
projects. DVD Studio Pro adds frame-doubling flags during the compile process to
make them conform to the HD DVD specification.
make them conform to the HD DVD specification.
Note:
720p at 50 fps H.264 assets were already supported in PAL HD projects.
Important:
The 720p at 25 fps HDV format is not native and will be encoded.
About “Native” Support
You can import a wide variety of video formats and frame rates into a DVD Studio Pro
project.
project.
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If the asset is natively supported,
such as those listed above, it will be used as it is
and will immediately show a green dot in the Status column of the Assets tab
(although there may be a short period where the asset is being parsed, as indicated
by a “P” next to the progress bar in the Status column).
(although there may be a short period where the asset is being parsed, as indicated
by a “P” next to the progress bar in the Status column).
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If the asset is not natively supported,
such as a 25 fps asset in an NTSC project, it will
be encoded to a natively supported format. The Status column will either show a
yellow dot, indicating that it needs to be encoded, or will show an “E” next to the
Status column’s progress bar if it is being currently encoded (depending on
whether background encoding is selected in DVD Studio Pro Preferences).
yellow dot, indicating that it needs to be encoded, or will show an “E” next to the
Status column’s progress bar if it is being currently encoded (depending on
whether background encoding is selected in DVD Studio Pro Preferences).
Another way to tell if an asset is natively supported by DVD Studio Pro is to
Control-click it in the Assets tab and see if the Encoder Settings item is dimmed
(indicating that it is native).
Control-click it in the Assets tab and see if the Encoder Settings item is dimmed
(indicating that it is native).
Important:
While DVD Studio Pro can transcode many non-native assets into
compliant formats, you can often achieve better results by using Compressor.
Compressor includes a variety of features, including Frame Controls and filters, that
allow you to get the best results possible for the transcoded assets.
Compressor includes a variety of features, including Frame Controls and filters, that
allow you to get the best results possible for the transcoded assets.