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13 lines
975 B
Text
13 lines
975 B
Text
Currently, when an element wants to push or pull, they call gst_pad_*. These functions then decide what
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to do based on the selection of pointers in the pad. There are at least 2 options for each, plus some
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header stuff to do various checking of flags. Unfortunately, because of the selection of pointers in
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the pad, there is at least one case where scheduling has to be tricked, by providing a pointer to a
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function with no body.
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What I propose is that these functions be replaced with macros that call a function pointer directly.
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The default functions (provided by GstPad) would be capable of chaining, that's about it. When a
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schedule is formed, these get replaced with more specific functions, provided by GstBin or a subclass.
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In the chain case, the pad_push_func might even be replaced brute force with the chain function, since
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they have the same prototype. In the cothreaded case, various functions would provide the ability to
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switch, deal with bufpens, etc.
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