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File Writer
The File Writer filter writes a stream of bits to disk. The output format matches the input format. The AVI MUX filter is currently the only filter to which the File Writer can connect, so it writes all data to the specified file in audio-video interleaved (AVI) format. You can create a new output file or specify an existing file; if the file already exists, it will be completely overwritten with the new data.
The time stamps on samples delivered to the file writer are byte offsets in the file. The input pin exposes the COM IStream interface and supports a subset of the interface. This enables the upstream filter to write data when the graph is stopped.
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