why call the output port of a element to “src pad” in gstreamer?












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I wonder the strange name policy of gstreamer. in a pipeline, the sink pad is actually a input port and the src pad is a output port, but the sink element is the end element, src element is the start element? I think it is wired to understand, could anyone show me more details.










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    I wonder the strange name policy of gstreamer. in a pipeline, the sink pad is actually a input port and the src pad is a output port, but the sink element is the end element, src element is the start element? I think it is wired to understand, could anyone show me more details.










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      I wonder the strange name policy of gstreamer. in a pipeline, the sink pad is actually a input port and the src pad is a output port, but the sink element is the end element, src element is the start element? I think it is wired to understand, could anyone show me more details.










      share|improve this question














      I wonder the strange name policy of gstreamer. in a pipeline, the sink pad is actually a input port and the src pad is a output port, but the sink element is the end element, src element is the start element? I think it is wired to understand, could anyone show me more details.







      gstreamer






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      asked Jan 31 at 7:55









      GordonGordon

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          The "src pad" might be an output for that block but it can also be seen as a source of data for the next block.



          Similarly the "sink pad" might be an input but from the other perspective it is also a place where data can be poured into from other blocks.



          It is just a matter of changing your perspective on the flow of data to look at it from other units and not the unit you are currently looking at. Where do you as a unit push data to? It certainly wouldn't be a source, I want to push data to a sink somewhere and let them deal with it. I also don't want to pull my data from a sink, I want to get it from a source of data.






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            The "src pad" might be an output for that block but it can also be seen as a source of data for the next block.



            Similarly the "sink pad" might be an input but from the other perspective it is also a place where data can be poured into from other blocks.



            It is just a matter of changing your perspective on the flow of data to look at it from other units and not the unit you are currently looking at. Where do you as a unit push data to? It certainly wouldn't be a source, I want to push data to a sink somewhere and let them deal with it. I also don't want to pull my data from a sink, I want to get it from a source of data.






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              0














              The "src pad" might be an output for that block but it can also be seen as a source of data for the next block.



              Similarly the "sink pad" might be an input but from the other perspective it is also a place where data can be poured into from other blocks.



              It is just a matter of changing your perspective on the flow of data to look at it from other units and not the unit you are currently looking at. Where do you as a unit push data to? It certainly wouldn't be a source, I want to push data to a sink somewhere and let them deal with it. I also don't want to pull my data from a sink, I want to get it from a source of data.






              share|improve this answer


























                0












                0








                0







                The "src pad" might be an output for that block but it can also be seen as a source of data for the next block.



                Similarly the "sink pad" might be an input but from the other perspective it is also a place where data can be poured into from other blocks.



                It is just a matter of changing your perspective on the flow of data to look at it from other units and not the unit you are currently looking at. Where do you as a unit push data to? It certainly wouldn't be a source, I want to push data to a sink somewhere and let them deal with it. I also don't want to pull my data from a sink, I want to get it from a source of data.






                share|improve this answer













                The "src pad" might be an output for that block but it can also be seen as a source of data for the next block.



                Similarly the "sink pad" might be an input but from the other perspective it is also a place where data can be poured into from other blocks.



                It is just a matter of changing your perspective on the flow of data to look at it from other units and not the unit you are currently looking at. Where do you as a unit push data to? It certainly wouldn't be a source, I want to push data to a sink somewhere and let them deal with it. I also don't want to pull my data from a sink, I want to get it from a source of data.







                share|improve this answer












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                answered Jan 31 at 8:06









                MokubaiMokubai

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                57.8k16138156






























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