Adobe Premiere Pro CS4 | ![]() |
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Batch capturing and recapturingAbout batch capturingAdobe Premiere Pro supports batch capturing—automatic, unattended capture of multiple clips from a controllable device. You can define a batch by selecting a group of clips you have logged. These appear as offline (placeholder) clips in the Project panel or in a bin. You can capture any number of logged offline clips by selecting them and choosing File > Batch Capture. When you begin capture, Adobe Premiere Pro automatically re‑sorts entries by tape name and timecode In points so that they’re captured as efficiently as possible. To save time by reducing the number of clips you log manually, consider using Scene Detect. See Use automatic scene detection. When you want to batch capture a set of logged offline clips, select them in the Project panel and choose File > Batch Capture. If you organized offline clips into bins, you can batch capture an entire bin by selecting the bin. Adobe Premiere Pro can capture video in the background so that you can perform other tasks during capture. When you start either a manual capture or batch capturing in Adobe Premiere Pro, you can minimize the Adobe Premiere Pro application or switch to another application without stopping capture. After you restore the Adobe Premiere Pro window, you can click anywhere inside it to halt capture. However, be aware that frames may drop out if you perform a system‑intensive task while capturing. The chance of dropping frames is lower on a high‑performance system, such as one with dual processors. Note: Batch capturing is not recommended for the first and last
30 seconds of your tape because of possible timecode and seeking
issues. Capture these sections manually.
![]() Preparing for batch capturing
Batch capture clips
Troubleshooting batch capturingYou can perform trouble‑free batch capturing if device control and the project’s capture settings are set up properly and if the offline clips you logged are consistent and free of conflicting data. If you encounter problems with batch capturing, make sure that all clips you want to batch capture are set up with the proper settings:
To manage capture errors when the Capture Settings Error dialog box appears, do one of the following:
Import and export batch listsYou can import batch lists in a variety of file formats: tab‑delimited text (TXT), comma‑separated value (CSV), TAB, and PBL. When imported, each entry in the text batch list appears as an offline clip in the Project panel. You can also export offline clips as a CSV batch list so that you can transfer a logged clip list between projects and workstations. To see the format of a batch list, export it and open the file in a text editor such as Notepad or in a spreadsheet application. A batch list text file may come from sources such as Adobe Premiere 6.5, logging utilities such as Pipeline Autolog, or custom video‑production software that uses a database or spreadsheet program to generate a batch list. When you import a batch list, the order of fields in the list must be as follows: tape name, In point, Out point, clip name, and comment. When you export offline clips as a batch list, Adobe Premiere Pro orders the fields as follows: tape name, In point, Out point, clip name, log note, description, scene, and shot/take. Exported field data is exported from the corresponding columns in the List view of the Project panel.
Work with offline clipsAn offline clip is either a clip that has been unlinked from its source file, or a logged clip that has yet to be captured. Offline clips contain information about the source files they represent, and they give you flexibility when actual files are not available. If an offline clip appears in a Timeline panel, “Media Offline” appears in the Program Monitor and in the track. When you log clips from a tape, Adobe Premiere Pro automatically creates offline clips containing the exact information required to capture the clips later. You can also create offline clips manually. Use offline clips in situations such as the following:
Create an offline clipYou can create an offline clip, that is, a placeholder clip for footage you capture later. Edit an offline clipYou can edit an offline clip. You can give it new start and end points, tape name and filename, and a new audio format. You can specify whether it contains audio only, video only, or audio and video. When an edited offline clip is placed in sequences, it retains the updated settings. These updated settings also are used for subsequent batch capture. Replace an offline clip with a captured source fileYou can link an offline clip to a source file, even to a source file different from the one from which the offline clip was made. The linked source file appears anywhere the offline clip is used in a project. It is possible, for example, to edit an online clip into a sequence, make its source offline, and link the offline clip to another source file. The new source appears in the sequence wherever the original one did. Note: The source
file must have the same type of audio track as the offline clip.
For example, if the offline clip has a stereo audio track, you cannot
link it to a source file with a monaural audio track.
About online and offline editingFor online editing, you capture clips at the level of quality required for the final version of the video program. This is the default method of working in Adobe Premiere Pro. Online editing works well when the speed and storage capacity of the host computer are adequate to the demands of the video formats used. For example, most modern computers can handle the data rate of DV in full resolution. They may be challenged, however, by the greater demands of, for example, HDV or HD footage. For many videographers, that’s where offline editing comes in. In offline editing, you capture low‑quality clips for editing purposes, but recapture them at high resolution when it’s time to finish, render, and export your final product. Editing the low‑resolution clips allows standard computers to edit excessively large assets, such as HDV or HD footage, without losing performance speed or running out of storage. It also lets editors use laptop computers to edit—for example, while on location. You may edit a project entirely online. On the other hand, you may edit in a two‑phase workflow: making your initial creative decisions offline, then switching to online for finishing tasks like fine‑tuning, grading, and color correction. You can complete an offline edit of, for example, an HD project with Adobe Premiere Pro and then export your project to the Advanced Authoring Format (AAF) or EDL for transfer to an editing system with more powerful hardware. You can then perform the final online edit and rendering, at full HD resolution, on that system. Recapture clipsYou can recapture clips in an existing project using batch capturing. Clips can be recaptured only if they have been unlinked from their source files, becoming offline clips; if they have names in their Tape Name fields; and if their source medium contains timecode.
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