2002-08-02 11:23:05 +00:00
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METADATA ON BUFFERS IS OUTDATED
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-------------------------------
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2000-01-30 10:44:33 +00:00
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Buffer mutability properties are the most important part of gst, and
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similarly are the most complex.
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The simple case is that a buffer is created, memory allocated, data put
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in it, and passed to the next filter. That filter reads the data, does
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something (like creating a new buffer and decoding into it), and
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unreferences the buffer. This causes the data to be freed and the buffer
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to be destroyed.
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A more complex case is when the filter modifies the data in place. It
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does so and simply passes on the buffer to the next element. This is just
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as easy to deal with.
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If the second filter adds metadata to the buffer, it just has to add the
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pointer to the list. The next element simply traverses the list and
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