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f92e880040
Original commit message from CVS: * gst/playback/README: * gst/playback/gstdecodebin.c: (gst_decode_bin_factory_filter), (gst_decode_bin_init), (find_compatibles), (close_pad_link), (try_to_link_1), (no_more_pads), (close_link), (type_found): Add some debug info to decodebin, update README
47 lines
1.9 KiB
Plaintext
47 lines
1.9 KiB
Plaintext
decoderbin:
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A bin with a sinkpad that decodes the data into raw formats. It works by sending
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the input data through a typefind element and then recursively autoplugs elements
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from the registry until a raw format is obtained. It will then create a new ghostpad
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on itself to signal the app of the new pad.
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TODO
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- reuse of decoderbin, cleanup in READY state
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- threading after demuxing?
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- error handling
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baseplaybin:
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A bin with an uri property. It will find the right source element from the registry
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and connect a decoderbin to it. When going to the PAUSED state, it will iterate the
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decoderbin and listen for new pad signals from it. It will connect a queue to each
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new pad and will iterate the decoderbin until one of the queues is filled. It is
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assumed that by that time all the streams will be found so that when leaving the
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PAUSED state, one can query the number of streams in the media file with the given
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uri.
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Before going to the PLAYING state, it is possible to connect a custom element to
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each of the streams. To do that, you have to add the element to the bin and then
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connect the pad(s) from the stream(s). You do not have to add the elements in
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a thread, the bin will take care of then when it's needed. You are allowed to use
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threads inside the elements, of course.
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The bin tries to be smart and doesn't add a queue when there is only one possible
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stream.
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TODO
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- reuse, cleanup in ready state
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- debugging
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- when the first pad is closed, it's possible that another dynamic element is
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added somewhere so that we need a queue for the first pad as well.
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- error handling
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playbin:
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Extends baseplaybin, sets up default audiosink and videosink for first audio/video
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stream detected. implements seeking and querying on the configured sinks.
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TODO
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- reuse, refcounting, cleanup in READY state
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- debugging
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- error handling
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