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2570 lines
84 KiB
C
2570 lines
84 KiB
C
/* GStreamer
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* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-playbin2
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*
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* Playbin2 provides a stand-alone everything-in-one abstraction for an
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* audio and/or video player.
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*
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* At this stage, playbin2 is considered UNSTABLE. The API provided in the
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* signals and properties may yet change in the near future. When playbin2
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* is stable, it will probably replace #playbin
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*
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* It can handle both audio and video files and features
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* <itemizedlist>
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* <listitem>
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* automatic file type recognition and based on that automatic
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* selection and usage of the right audio/video/subtitle demuxers/decoders
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* </listitem>
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* <listitem>
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* visualisations for audio files
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* </listitem>
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* <listitem>
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* subtitle support for video files. Subtitles can be store in external
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* files.
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* </listitem>
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* <listitem>
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* stream selection between different video/audio/subtitles streams
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* </listitem>
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* <listitem>
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* meta info (tag) extraction
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* </listitem>
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* <listitem>
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* easy access to the last video frame
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* </listitem>
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* <listitem>
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* buffering when playing streams over a network
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* </listitem>
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* <listitem>
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* volume control with mute option
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* </listitem>
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* </itemizedlist>
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*
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* <refsect2>
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* <title>Usage</title>
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* <para>
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* A playbin element can be created just like any other element using
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* gst_element_factory_make(). The file/URI to play should be set via the #GstPlayBin2:uri
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* property. This must be an absolute URI, relative file paths are not allowed.
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* Example URIs are file:///home/joe/movie.avi or http://www.joedoe.com/foo.ogg
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*
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* Playbin is a #GstPipeline. It will notify the application of everything
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* that's happening (errors, end of stream, tags found, state changes, etc.)
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* by posting messages on its #GstBus. The application needs to watch the
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* bus.
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*
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* Playback can be initiated by setting the element to PLAYING state using
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* gst_element_set_state(). Note that the state change will take place in
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* the background in a separate thread, when the function returns playback
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* is probably not happening yet and any errors might not have occured yet.
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* Applications using playbin should ideally be written to deal with things
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* completely asynchroneous.
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*
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* When playback has finished (an EOS message has been received on the bus)
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* or an error has occured (an ERROR message has been received on the bus) or
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* the user wants to play a different track, playbin should be set back to
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* READY or NULL state, then the #GstPlayBin2:uri property should be set to the
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* new location and then playbin be set to PLAYING state again.
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*
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* Seeking can be done using gst_element_seek_simple() or gst_element_seek()
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* on the playbin element. Again, the seek will not be executed
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* instantaneously, but will be done in a background thread. When the seek
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* call returns the seek will most likely still be in process. An application
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* may wait for the seek to finish (or fail) using gst_element_get_state() with
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* -1 as the timeout, but this will block the user interface and is not
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* recommended at all.
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*
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* Applications may query the current position and duration of the stream
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* via gst_element_query_position() and gst_element_query_duration() and
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* setting the format passed to GST_FORMAT_TIME. If the query was successful,
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* the duration or position will have been returned in units of nanoseconds.
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* </para>
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* </refsect2>
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* <refsect2>
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* <title>Advanced Usage: specifying the audio and video sink</title>
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* <para>
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* By default, if no audio sink or video sink has been specified via the
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* #GstPlayBin2:audio-sink or #GstPlayBin2:video-sink property, playbin will use the autoaudiosink
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* and autovideosink elements to find the first-best available output method.
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* This should work in most cases, but is not always desirable. Often either
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* the user or application might want to specify more explicitly what to use
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* for audio and video output.
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*
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* If the application wants more control over how audio or video should be
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* output, it may create the audio/video sink elements itself (for example
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* using gst_element_factory_make()) and provide them to playbin using the
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* #GstPlayBin2:audio-sink or #GstPlayBin2:video-sink property.
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*
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* GNOME-based applications, for example, will usually want to create
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* gconfaudiosink and gconfvideosink elements and make playbin use those,
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* so that output happens to whatever the user has configured in the GNOME
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* Multimedia System Selector confinguration dialog.
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*
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* The sink elements do not necessarily need to be ready-made sinks. It is
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* possible to create container elements that look like a sink to playbin,
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* but in reality contain a number of custom elements linked together. This
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* can be achieved by creating a #GstBin and putting elements in there and
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* linking them, and then creating a sink #GstGhostPad for the bin and pointing
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* it to the sink pad of the first element within the bin. This can be used
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* for a number of purposes, for example to force output to a particular
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* format or to modify or observe the data before it is output.
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*
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* It is also possible to 'suppress' audio and/or video output by using
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* 'fakesink' elements (or capture it from there using the fakesink element's
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* "handoff" signal, which, nota bene, is fired from the streaming thread!).
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* </para>
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* </refsect2>
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* <refsect2>
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* <title>Retrieving Tags and Other Meta Data</title>
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* <para>
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* Most of the common meta data (artist, title, etc.) can be retrieved by
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* watching for TAG messages on the pipeline's bus (see above).
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*
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* Other more specific meta information like width/height/framerate of video
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* streams or samplerate/number of channels of audio streams can be obtained
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* from the negotiated caps on the sink pads of the sinks.
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* </para>
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* </refsect2>
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* <refsect2>
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* <title>Buffering</title>
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* Playbin handles buffering automatically for the most part, but applications
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* need to handle parts of the buffering process as well. Whenever playbin is
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* buffering, it will post BUFFERING messages on the bus with a percentage
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* value that shows the progress of the buffering process. Applications need
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* to set playbin to PLAYING or PAUSED state in response to these messages.
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* They may also want to convey the buffering progress to the user in some
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* way. Here is how to extract the percentage information from the message
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* (requires GStreamer >= 0.10.11):
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* |[
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* switch (GST_MESSAGE_TYPE (msg)) {
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* case GST_MESSAGE_BUFFERING: {
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* gint percent = 0;
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* gst_message_parse_buffering (msg, &percent);
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* g_print ("Buffering (%%u percent done)", percent);
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* break;
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* }
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* ...
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* }
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* ]|
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* Note that applications should keep/set the pipeline in the PAUSED state when
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* a BUFFERING message is received with a buffer percent value < 100 and set
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* the pipeline back to PLAYING state when a BUFFERING message with a value
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* of 100 percent is received (if PLAYING is the desired state, that is).
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* </refsect2>
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* <refsect2>
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* <title>Embedding the video window in your application</title>
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* By default, playbin (or rather the video sinks used) will create their own
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* window. Applications will usually want to force output to a window of their
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* own, however. This can be done using the #GstXOverlay interface, which most
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* video sinks implement. See the documentation there for more details.
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* </refsect2>
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* <refsect2>
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* <title>Specifying which CD/DVD device to use</title>
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* The device to use for CDs/DVDs needs to be set on the source element
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* playbin creates before it is opened. The only way to do this at the moment
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* is to connect to playbin's "notify::source" signal, which will be emitted
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* by playbin when it has created the source element for a particular URI.
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* In the signal callback you can check if the source element has a "device"
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* property and set it appropriately. In future ways might be added to specify
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* the device as part of the URI, but at the time of writing this is not
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* possible yet.
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* </refsect2>
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* <refsect2>
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* <title>Handling redirects</title>
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* <para>
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* Some elements may post 'redirect' messages on the bus to tell the
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* application to open another location. These are element messages containing
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* a structure named 'redirect' along with a 'new-location' field of string
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* type. The new location may be a relative or an absolute URI. Examples
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* for such redirects can be found in many quicktime movie trailers.
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* </para>
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* </refsect2>
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* <refsect2>
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* <title>Examples</title>
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* |[
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* gst-launch -v playbin uri=file:///path/to/somefile.avi
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* ]| This will play back the given AVI video file, given that the video and
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* audio decoders required to decode the content are installed. Since no
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* special audio sink or video sink is supplied (not possible via gst-launch),
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* playbin will try to find a suitable audio and video sink automatically
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* using the autoaudiosink and autovideosink elements.
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* |[
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* gst-launch -v playbin uri=cdda://4
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* ]| This will play back track 4 on an audio CD in your disc drive (assuming
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* the drive is detected automatically by the plugin).
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* |[
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* gst-launch -v playbin uri=dvd://1
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* ]| This will play back title 1 of a DVD in your disc drive (assuming
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* the drive is detected automatically by the plugin).
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/gst-i18n-plugin.h>
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#include <gst/pbutils/pbutils.h>
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#include "gstplay-enum.h"
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#include "gstplay-marshal.h"
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#include "gstplaysink.h"
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#include "gstfactorylists.h"
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#include "gstscreenshot.h"
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GST_DEBUG_CATEGORY_STATIC (gst_play_bin_debug);
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#define GST_CAT_DEFAULT gst_play_bin_debug
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#define GST_TYPE_PLAY_BIN (gst_play_bin_get_type())
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#define GST_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PLAY_BIN,GstPlayBin))
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#define GST_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PLAY_BIN,GstPlayBinClass))
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#define GST_IS_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PLAY_BIN))
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#define GST_IS_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PLAY_BIN))
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#define VOLUME_MAX_DOUBLE 10.0
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typedef struct _GstPlayBin GstPlayBin;
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typedef struct _GstPlayBinClass GstPlayBinClass;
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typedef struct _GstSourceGroup GstSourceGroup;
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typedef struct _GstSourceSelect GstSourceSelect;
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/* has the info for a selector and provides the link to the sink */
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struct _GstSourceSelect
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{
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const gchar *media; /* the media type of the selector */
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GstPlaySinkType type; /* the sink pad type of the selector */
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GstElement *selector; /* the selector */
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GPtrArray *channels;
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GstPad *srcpad; /* the source pad of the selector */
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GstPad *sinkpad; /* the sinkpad of the sink when the selector is linked */
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};
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#define GST_SOURCE_GROUP_GET_LOCK(group) (((GstSourceGroup*)(group))->lock)
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#define GST_SOURCE_GROUP_LOCK(group) (g_mutex_lock (GST_SOURCE_GROUP_GET_LOCK(group)))
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#define GST_SOURCE_GROUP_UNLOCK(group) (g_mutex_unlock (GST_SOURCE_GROUP_GET_LOCK(group)))
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/* a structure to hold the objects for decoding a uri and the subtitle uri
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*/
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struct _GstSourceGroup
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{
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GstPlayBin *playbin;
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GMutex *lock;
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gboolean valid; /* the group has valid info to start playback */
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gboolean active; /* the group is active */
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/* properties */
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gchar *uri;
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gchar *suburi;
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GValueArray *streaminfo;
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GstElement *source;
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GPtrArray *video_channels; /* links to selector pads */
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GPtrArray *audio_channels; /* links to selector pads */
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GPtrArray *text_channels; /* links to selector pads */
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GPtrArray *subp_channels; /* links to selector pads */
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/* uridecodebins for uri and subtitle uri */
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GstElement *uridecodebin;
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GstElement *suburidecodebin;
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gint pending;
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gulong pad_added_id;
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gulong pad_removed_id;
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gulong no_more_pads_id;
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gulong notify_source_id;
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gulong drained_id;
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gulong autoplug_factories_id;
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gulong autoplug_select_id;
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gulong sub_pad_added_id;
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gulong sub_pad_removed_id;
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gulong sub_no_more_pads_id;
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/* selectors for different streams */
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GstSourceSelect selector[GST_PLAY_SINK_TYPE_LAST];
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};
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#define GST_PLAY_BIN_GET_LOCK(bin) (((GstPlayBin*)(bin))->lock)
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#define GST_PLAY_BIN_LOCK(bin) (g_mutex_lock (GST_PLAY_BIN_GET_LOCK(bin)))
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#define GST_PLAY_BIN_UNLOCK(bin) (g_mutex_unlock (GST_PLAY_BIN_GET_LOCK(bin)))
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/* lock to protect dynamic callbacks, like no-more-pads */
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#define GST_PLAY_BIN_DYN_LOCK(bin) g_mutex_lock ((bin)->dyn_lock)
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#define GST_PLAY_BIN_DYN_UNLOCK(bin) g_mutex_unlock ((bin)->dyn_lock)
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/* lock for shutdown */
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#define GST_PLAY_BIN_SHUTDOWN_LOCK(bin,label) \
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G_STMT_START { \
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if (G_UNLIKELY (g_atomic_int_get (&bin->shutdown))) \
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goto label; \
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GST_PLAY_BIN_DYN_LOCK (bin); \
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if (G_UNLIKELY (g_atomic_int_get (&bin->shutdown))) { \
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GST_PLAY_BIN_DYN_UNLOCK (bin); \
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goto label; \
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} \
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} G_STMT_END
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/* unlock for shutdown */
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#define GST_PLAY_BIN_SHUTDOWN_UNLOCK(bin) \
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GST_PLAY_BIN_DYN_UNLOCK (bin); \
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/**
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* GstPlayBin2:
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*
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* playbin element structure
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*/
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struct _GstPlayBin
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{
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GstPipeline parent;
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GMutex *lock; /* to protect group switching */
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/* the groups, we use a double buffer to switch between current and next */
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GstSourceGroup groups[2]; /* array with group info */
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GstSourceGroup *curr_group; /* pointer to the currently playing group */
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GstSourceGroup *next_group; /* pointer to the next group */
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/* properties */
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guint connection_speed; /* connection speed in bits/sec (0 = unknown) */
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gint current_video; /* the currently selected stream */
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gint current_audio; /* the currently selected stream */
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gint current_text; /* the currently selected stream */
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gchar *encoding; /* subtitle encoding */
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guint64 buffer_duration; /* When buffering, the max buffer duration (ns) */
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guint buffer_size; /* When buffering, the max buffer size (bytes) */
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/* our play sink */
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GstPlaySink *playsink;
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/* the last activated source */
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GstElement *source;
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/* lock protecting dynamic adding/removing */
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GMutex *dyn_lock;
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/* if we are shutting down or not */
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gint shutdown;
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GValueArray *elements; /* factories we can use for selecting elements */
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gboolean have_selector; /* set to FALSE when we fail to create an
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* input-selector, so that we only post a
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* warning once */
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};
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struct _GstPlayBinClass
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{
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GstPipelineClass parent_class;
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/* notify app that the current uri finished decoding and it is possible to
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* queue a new one for gapless playback */
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void (*about_to_finish) (GstPlayBin * playbin);
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/* notify app that number of audio/video/text streams changed */
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void (*video_changed) (GstPlayBin * playbin);
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void (*audio_changed) (GstPlayBin * playbin);
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void (*text_changed) (GstPlayBin * playbin);
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/* get audio/video/text tags for a stream */
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GstTagList *(*get_video_tags) (GstPlayBin * playbin, gint stream);
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GstTagList *(*get_audio_tags) (GstPlayBin * playbin, gint stream);
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GstTagList *(*get_text_tags) (GstPlayBin * playbin, gint stream);
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/* get the last video frame and convert it to the given caps */
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GstBuffer *(*convert_frame) (GstPlayBin * playbin, GstCaps * caps);
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/* get audio/video/text pad for a stream */
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GstPad *(*get_video_pad) (GstPlayBin * playbin, gint stream);
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GstPad *(*get_audio_pad) (GstPlayBin * playbin, gint stream);
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GstPad *(*get_text_pad) (GstPlayBin * playbin, gint stream);
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};
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/* props */
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#define DEFAULT_URI NULL
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#define DEFAULT_SUBURI NULL
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#define DEFAULT_SOURCE NULL
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#define DEFAULT_FLAGS GST_PLAY_FLAG_AUDIO | GST_PLAY_FLAG_VIDEO | GST_PLAY_FLAG_TEXT | \
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GST_PLAY_FLAG_SOFT_VOLUME
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#define DEFAULT_N_VIDEO 0
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#define DEFAULT_CURRENT_VIDEO -1
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#define DEFAULT_N_AUDIO 0
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#define DEFAULT_CURRENT_AUDIO -1
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#define DEFAULT_N_TEXT 0
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#define DEFAULT_CURRENT_TEXT -1
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#define DEFAULT_SUBTITLE_ENCODING NULL
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#define DEFAULT_AUDIO_SINK NULL
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#define DEFAULT_VIDEO_SINK NULL
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#define DEFAULT_VIS_PLUGIN NULL
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#define DEFAULT_TEXT_SINK NULL
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#define DEFAULT_VOLUME 1.0
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#define DEFAULT_MUTE FALSE
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#define DEFAULT_FRAME NULL
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#define DEFAULT_FONT_DESC NULL
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#define DEFAULT_CONNECTION_SPEED 0
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#define DEFAULT_BUFFER_DURATION -1
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#define DEFAULT_BUFFER_SIZE -1
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enum
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{
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PROP_0,
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PROP_URI,
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PROP_SUBURI,
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PROP_SOURCE,
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PROP_FLAGS,
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PROP_N_VIDEO,
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PROP_CURRENT_VIDEO,
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PROP_N_AUDIO,
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PROP_CURRENT_AUDIO,
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PROP_N_TEXT,
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PROP_CURRENT_TEXT,
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PROP_SUBTITLE_ENCODING,
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PROP_AUDIO_SINK,
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|
PROP_VIDEO_SINK,
|
|
PROP_VIS_PLUGIN,
|
|
PROP_TEXT_SINK,
|
|
PROP_VOLUME,
|
|
PROP_MUTE,
|
|
PROP_FRAME,
|
|
PROP_FONT_DESC,
|
|
PROP_CONNECTION_SPEED,
|
|
PROP_BUFFER_SIZE,
|
|
PROP_BUFFER_DURATION,
|
|
PROP_LAST
|
|
};
|
|
|
|
/* signals */
|
|
enum
|
|
{
|
|
SIGNAL_ABOUT_TO_FINISH,
|
|
SIGNAL_CONVERT_FRAME,
|
|
SIGNAL_VIDEO_CHANGED,
|
|
SIGNAL_AUDIO_CHANGED,
|
|
SIGNAL_TEXT_CHANGED,
|
|
SIGNAL_GET_VIDEO_TAGS,
|
|
SIGNAL_GET_AUDIO_TAGS,
|
|
SIGNAL_GET_TEXT_TAGS,
|
|
SIGNAL_GET_VIDEO_PAD,
|
|
SIGNAL_GET_AUDIO_PAD,
|
|
SIGNAL_GET_TEXT_PAD,
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
static void gst_play_bin_class_init (GstPlayBinClass * klass);
|
|
static void gst_play_bin_init (GstPlayBin * playbin);
|
|
static void gst_play_bin_finalize (GObject * object);
|
|
|
|
static void gst_play_bin_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * spec);
|
|
static void gst_play_bin_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * spec);
|
|
|
|
static GstStateChangeReturn gst_play_bin_change_state (GstElement * element,
|
|
GstStateChange transition);
|
|
|
|
static void gst_play_bin_handle_message (GstBin * bin, GstMessage * message);
|
|
|
|
static GstTagList *gst_play_bin_get_video_tags (GstPlayBin * playbin,
|
|
gint stream);
|
|
static GstTagList *gst_play_bin_get_audio_tags (GstPlayBin * playbin,
|
|
gint stream);
|
|
static GstTagList *gst_play_bin_get_text_tags (GstPlayBin * playbin,
|
|
gint stream);
|
|
|
|
static GstBuffer *gst_play_bin_convert_frame (GstPlayBin * playbin,
|
|
GstCaps * caps);
|
|
|
|
static GstPad *gst_play_bin_get_video_pad (GstPlayBin * playbin, gint stream);
|
|
static GstPad *gst_play_bin_get_audio_pad (GstPlayBin * playbin, gint stream);
|
|
static GstPad *gst_play_bin_get_text_pad (GstPlayBin * playbin, gint stream);
|
|
|
|
static gboolean setup_next_source (GstPlayBin * playbin);
|
|
|
|
static GstElementClass *parent_class;
|
|
|
|
static guint gst_play_bin_signals[LAST_SIGNAL] = { 0 };
|
|
|
|
static const GstElementDetails gst_play_bin_details =
|
|
GST_ELEMENT_DETAILS ("Player Bin 2",
|
|
"Generic/Bin/Player",
|
|
"Autoplug and play media from an uri",
|
|
"Wim Taymans <wim.taymans@gmail.com>");
|
|
|
|
static void
|
|
gst_play_marshal_BUFFER__BOXED (GClosure * closure,
|
|
GValue * return_value G_GNUC_UNUSED,
|
|
guint n_param_values,
|
|
const GValue * param_values,
|
|
gpointer invocation_hint G_GNUC_UNUSED, gpointer marshal_data)
|
|
{
|
|
typedef GstBuffer *(*GMarshalFunc_OBJECT__BOXED) (gpointer data1,
|
|
gpointer arg_1, gpointer data2);
|
|
register GMarshalFunc_OBJECT__BOXED callback;
|
|
register GCClosure *cc = (GCClosure *) closure;
|
|
register gpointer data1, data2;
|
|
GstBuffer *v_return;
|
|
|
|
g_return_if_fail (return_value != NULL);
|
|
g_return_if_fail (n_param_values == 2);
|
|
|
|
if (G_CCLOSURE_SWAP_DATA (closure)) {
|
|
data1 = closure->data;
|
|
data2 = g_value_peek_pointer (param_values + 0);
|
|
} else {
|
|
data1 = g_value_peek_pointer (param_values + 0);
|
|
data2 = closure->data;
|
|
}
|
|
callback =
|
|
(GMarshalFunc_OBJECT__BOXED) (marshal_data ? marshal_data : cc->callback);
|
|
|
|
v_return = callback (data1, g_value_get_boxed (param_values + 1), data2);
|
|
|
|
gst_value_take_buffer (return_value, v_return);
|
|
}
|
|
|
|
static GType
|
|
gst_play_bin_get_type (void)
|
|
{
|
|
static GType gst_play_bin_type = 0;
|
|
|
|
if (!gst_play_bin_type) {
|
|
static const GTypeInfo gst_play_bin_info = {
|
|
sizeof (GstPlayBinClass),
|
|
NULL,
|
|
NULL,
|
|
(GClassInitFunc) gst_play_bin_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstPlayBin),
|
|
0,
|
|
(GInstanceInitFunc) gst_play_bin_init,
|
|
NULL
|
|
};
|
|
|
|
gst_play_bin_type = g_type_register_static (GST_TYPE_PIPELINE,
|
|
"GstPlayBin2", &gst_play_bin_info, 0);
|
|
}
|
|
|
|
return gst_play_bin_type;
|
|
}
|
|
|
|
static void
|
|
gst_play_bin_class_init (GstPlayBinClass * klass)
|
|
{
|
|
GObjectClass *gobject_klass;
|
|
GstElementClass *gstelement_klass;
|
|
GstBinClass *gstbin_klass;
|
|
|
|
gobject_klass = (GObjectClass *) klass;
|
|
gstelement_klass = (GstElementClass *) klass;
|
|
gstbin_klass = (GstBinClass *) klass;
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
gobject_klass->set_property = gst_play_bin_set_property;
|
|
gobject_klass->get_property = gst_play_bin_get_property;
|
|
|
|
gobject_klass->finalize = GST_DEBUG_FUNCPTR (gst_play_bin_finalize);
|
|
|
|
/**
|
|
* GstPlayBin2:uri
|
|
*
|
|
* Set the next URI that playbin will play. This property can be set from the
|
|
* about-to-finish signal to queue the next media file.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_URI,
|
|
g_param_spec_string ("uri", "URI", "URI of the media to play",
|
|
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstPlayBin2:suburi
|
|
*
|
|
* Set the next subtitle URI that playbin will play. This property can be
|
|
* set from the about-to-finish signal to queue the next subtitle media file.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_SUBURI,
|
|
g_param_spec_string ("suburi", ".sub-URI", "Optional URI of a subtitle",
|
|
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_klass, PROP_SOURCE,
|
|
g_param_spec_object ("source", "Source", "Source element",
|
|
GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstPlayBin2:flags
|
|
*
|
|
* Control the behaviour of playbin.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_FLAGS,
|
|
g_param_spec_flags ("flags", "Flags", "Flags to control behaviour",
|
|
GST_TYPE_PLAY_FLAGS, DEFAULT_FLAGS,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstPlayBin2:n-video
|
|
*
|
|
* Get the total number of available video streams.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_N_VIDEO,
|
|
g_param_spec_int ("n-video", "Number Video",
|
|
"Total number of video streams", 0, G_MAXINT, 0,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
/**
|
|
* GstPlayBin2:current-video
|
|
*
|
|
* Get or set the currently playing video stream. By default the first video
|
|
* stream with data is played.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_CURRENT_VIDEO,
|
|
g_param_spec_int ("current-video", "Current Video",
|
|
"Currently playing video stream (-1 = auto)",
|
|
-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
/**
|
|
* GstPlayBin2:n-audio
|
|
*
|
|
* Get the total number of available audio streams.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_N_AUDIO,
|
|
g_param_spec_int ("n-audio", "Number Audio",
|
|
"Total number of audio streams", 0, G_MAXINT, 0,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
/**
|
|
* GstPlayBin2:current-audio
|
|
*
|
|
* Get or set the currently playing audio stream. By default the first audio
|
|
* stream with data is played.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_CURRENT_AUDIO,
|
|
g_param_spec_int ("current-audio", "Current audio",
|
|
"Currently playing audio stream (-1 = auto)",
|
|
-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
/**
|
|
* GstPlayBin2:n-text
|
|
*
|
|
* Get the total number of available subtitle streams.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_N_TEXT,
|
|
g_param_spec_int ("n-text", "Number Text",
|
|
"Total number of text streams", 0, G_MAXINT, 0,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
/**
|
|
* GstPlayBin2:current-text:
|
|
*
|
|
* Get or set the currently playing subtitle stream. By default the first
|
|
* subtitle stream with data is played.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_CURRENT_TEXT,
|
|
g_param_spec_int ("current-text", "Current Text",
|
|
"Currently playing text stream (-1 = auto)",
|
|
-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_klass, PROP_SUBTITLE_ENCODING,
|
|
g_param_spec_string ("subtitle-encoding", "subtitle encoding",
|
|
"Encoding to assume if input subtitles are not in UTF-8 encoding. "
|
|
"If not set, the GST_SUBTITLE_ENCODING environment variable will "
|
|
"be checked for an encoding to use. If that is not set either, "
|
|
"ISO-8859-15 will be assumed.", NULL,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_klass, PROP_VIDEO_SINK,
|
|
g_param_spec_object ("video-sink", "Video Sink",
|
|
"the video output element to use (NULL = default sink)",
|
|
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
g_object_class_install_property (gobject_klass, PROP_AUDIO_SINK,
|
|
g_param_spec_object ("audio-sink", "Audio Sink",
|
|
"the audio output element to use (NULL = default sink)",
|
|
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
g_object_class_install_property (gobject_klass, PROP_VIS_PLUGIN,
|
|
g_param_spec_object ("vis-plugin", "Vis plugin",
|
|
"the visualization element to use (NULL = default)",
|
|
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
g_object_class_install_property (gobject_klass, PROP_TEXT_SINK,
|
|
g_param_spec_object ("text-sink", "Text plugin",
|
|
"the text output element to use (NULL = default textoverlay)",
|
|
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_klass, PROP_VOLUME,
|
|
g_param_spec_double ("volume", "Volume", "The audio volume",
|
|
0.0, VOLUME_MAX_DOUBLE, 1.0,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
g_object_class_install_property (gobject_klass, PROP_MUTE,
|
|
g_param_spec_boolean ("mute", "Mute",
|
|
"Mute the audio channel without changing the volume", FALSE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstPlayBin2:frame:
|
|
* @playbin: a #GstPlayBin2
|
|
*
|
|
* Get the currently rendered or prerolled frame in the sink.
|
|
* The #GstCaps on the buffer will describe the format of the buffer.
|
|
*/
|
|
g_object_class_install_property (gobject_klass, PROP_FRAME,
|
|
gst_param_spec_mini_object ("frame", "Frame",
|
|
"The last frame (NULL = no video available)",
|
|
GST_TYPE_BUFFER, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
g_object_class_install_property (gobject_klass, PROP_FONT_DESC,
|
|
g_param_spec_string ("subtitle-font-desc",
|
|
"Subtitle font description",
|
|
"Pango font description of font "
|
|
"to be used for subtitle rendering", NULL,
|
|
G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_klass, PROP_CONNECTION_SPEED,
|
|
g_param_spec_uint ("connection-speed", "Connection Speed",
|
|
"Network connection speed in kbps (0 = unknown)",
|
|
0, G_MAXUINT, DEFAULT_CONNECTION_SPEED,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_klass, PROP_BUFFER_SIZE,
|
|
g_param_spec_int ("buffer-size", "Buffer size (bytes)",
|
|
"Buffer size when buffering network streams",
|
|
-1, G_MAXINT, DEFAULT_BUFFER_SIZE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
g_object_class_install_property (gobject_klass, PROP_BUFFER_DURATION,
|
|
g_param_spec_int64 ("buffer-duration", "Buffer duration (ns)",
|
|
"Buffer duration when buffering network streams",
|
|
-1, G_MAXINT64, DEFAULT_BUFFER_DURATION,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstPlayBin2::about-to-finish
|
|
* @playbin: a #GstPlayBin2
|
|
*
|
|
* This signal is emitted when the current uri is about to finish. You can
|
|
* set the uri and suburi to make sure that playback continues.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_ABOUT_TO_FINISH] =
|
|
g_signal_new ("about-to-finish", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, about_to_finish), NULL, NULL,
|
|
gst_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
|
|
|
|
/**
|
|
* GstPlayBin2::video-changed
|
|
* @playbin: a #GstPlayBin2
|
|
*
|
|
* This signal is emitted whenever the number or order of the video
|
|
* streams has changed. The application will most likely want to select
|
|
* a new video stream.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_VIDEO_CHANGED] =
|
|
g_signal_new ("video-changed", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, video_changed), NULL, NULL,
|
|
gst_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
|
|
/**
|
|
* GstPlayBin2::audio-changed
|
|
* @playbin: a #GstPlayBin2
|
|
*
|
|
* This signal is emitted whenever the number or order of the audio
|
|
* streams has changed. The application will most likely want to select
|
|
* a new audio stream.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_AUDIO_CHANGED] =
|
|
g_signal_new ("audio-changed", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, audio_changed), NULL, NULL,
|
|
gst_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
|
|
/**
|
|
* GstPlayBin2::text-changed
|
|
* @playbin: a #GstPlayBin2
|
|
*
|
|
* This signal is emitted whenever the number or order of the text
|
|
* streams has changed. The application will most likely want to select
|
|
* a new text stream.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_TEXT_CHANGED] =
|
|
g_signal_new ("text-changed", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, text_changed), NULL, NULL,
|
|
gst_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
|
|
|
|
/**
|
|
* GstPlayBin2::get-video-tags
|
|
* @playbin: a #GstPlayBin2
|
|
* @stream: a video stream number
|
|
*
|
|
* Action signal to retrieve the tags of a specific video stream number.
|
|
* This information can be used to select a stream.
|
|
*
|
|
* Returns: a GstTagList with tags or NULL when the stream number does not
|
|
* exist.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_GET_VIDEO_TAGS] =
|
|
g_signal_new ("get-video-tags", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, get_video_tags), NULL, NULL,
|
|
gst_play_marshal_BOXED__INT, GST_TYPE_TAG_LIST, 1, G_TYPE_INT);
|
|
/**
|
|
* GstPlayBin2::get-audio-tags
|
|
* @playbin: a #GstPlayBin2
|
|
* @stream: an audio stream number
|
|
*
|
|
* Action signal to retrieve the tags of a specific audio stream number.
|
|
* This information can be used to select a stream.
|
|
*
|
|
* Returns: a GstTagList with tags or NULL when the stream number does not
|
|
* exist.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_GET_AUDIO_TAGS] =
|
|
g_signal_new ("get-audio-tags", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, get_audio_tags), NULL, NULL,
|
|
gst_play_marshal_BOXED__INT, GST_TYPE_TAG_LIST, 1, G_TYPE_INT);
|
|
/**
|
|
* GstPlayBin2::get-text-tags
|
|
* @playbin: a #GstPlayBin2
|
|
* @stream: a text stream number
|
|
*
|
|
* Action signal to retrieve the tags of a specific text stream number.
|
|
* This information can be used to select a stream.
|
|
*
|
|
* Returns: a GstTagList with tags or NULL when the stream number does not
|
|
* exist.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_GET_TEXT_TAGS] =
|
|
g_signal_new ("get-text-tags", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, get_text_tags), NULL, NULL,
|
|
gst_play_marshal_BOXED__INT, GST_TYPE_TAG_LIST, 1, G_TYPE_INT);
|
|
/**
|
|
* GstPlayBin2::convert-frame
|
|
* @playbin: a #GstPlayBin2
|
|
* @caps: the target format of the frame
|
|
*
|
|
* Action signal to retrieve the currently playing video frame in the format
|
|
* specified by @caps.
|
|
* If @caps is %NULL, no conversion will be performed and this function is
|
|
* equivalent to the #GstPlayBin::frame property.
|
|
*
|
|
* Returns: a #GstBuffer of the current video frame converted to #caps.
|
|
* The caps on the buffer will describe the final layout of the buffer data.
|
|
* %NULL is returned when no current buffer can be retrieved or when the
|
|
* conversion failed.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_CONVERT_FRAME] =
|
|
g_signal_new ("convert-frame", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, convert_frame), NULL, NULL,
|
|
gst_play_marshal_BUFFER__BOXED, GST_TYPE_BUFFER, 1, GST_TYPE_CAPS);
|
|
|
|
/**
|
|
* GstPlayBin2::get-video-pad
|
|
* @playbin: a #GstPlayBin2
|
|
* @stream: a video stream number
|
|
*
|
|
* Action signal to retrieve the stream-selector sinkpad for a specific
|
|
* video stream.
|
|
* This pad can be used for notifications of caps changes, stream-specific
|
|
* queries, etc.
|
|
*
|
|
* Returns: a #GstPad, or NULL when the stream number does not exist.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_GET_VIDEO_PAD] =
|
|
g_signal_new ("get-video-pad", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, get_video_pad), NULL, NULL,
|
|
gst_play_marshal_OBJECT__INT, GST_TYPE_PAD, 1, G_TYPE_INT);
|
|
/**
|
|
* GstPlayBin2::get-audio-pad
|
|
* @playbin: a #GstPlayBin2
|
|
* @stream: an audio stream number
|
|
*
|
|
* Action signal to retrieve the stream-selector sinkpad for a specific
|
|
* audio stream.
|
|
* This pad can be used for notifications of caps changes, stream-specific
|
|
* queries, etc.
|
|
*
|
|
* Returns: a #GstPad, or NULL when the stream number does not exist.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_GET_AUDIO_PAD] =
|
|
g_signal_new ("get-audio-pad", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, get_audio_pad), NULL, NULL,
|
|
gst_play_marshal_OBJECT__INT, GST_TYPE_PAD, 1, G_TYPE_INT);
|
|
/**
|
|
* GstPlayBin2::get-text-pad
|
|
* @playbin: a #GstPlayBin2
|
|
* @stream: a text stream number
|
|
*
|
|
* Action signal to retrieve the stream-selector sinkpad for a specific
|
|
* text stream.
|
|
* This pad can be used for notifications of caps changes, stream-specific
|
|
* queries, etc.
|
|
*
|
|
* Returns: a #GstPad, or NULL when the stream number does not exist.
|
|
*/
|
|
gst_play_bin_signals[SIGNAL_GET_TEXT_PAD] =
|
|
g_signal_new ("get-text-pad", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
|
|
G_STRUCT_OFFSET (GstPlayBinClass, get_text_pad), NULL, NULL,
|
|
gst_play_marshal_OBJECT__INT, GST_TYPE_PAD, 1, G_TYPE_INT);
|
|
|
|
klass->get_video_tags = gst_play_bin_get_video_tags;
|
|
klass->get_audio_tags = gst_play_bin_get_audio_tags;
|
|
klass->get_text_tags = gst_play_bin_get_text_tags;
|
|
|
|
klass->convert_frame = gst_play_bin_convert_frame;
|
|
|
|
klass->get_video_pad = gst_play_bin_get_video_pad;
|
|
klass->get_audio_pad = gst_play_bin_get_audio_pad;
|
|
klass->get_text_pad = gst_play_bin_get_text_pad;
|
|
|
|
gst_element_class_set_details (gstelement_klass, &gst_play_bin_details);
|
|
|
|
gstelement_klass->change_state =
|
|
GST_DEBUG_FUNCPTR (gst_play_bin_change_state);
|
|
|
|
gstbin_klass->handle_message =
|
|
GST_DEBUG_FUNCPTR (gst_play_bin_handle_message);
|
|
}
|
|
|
|
static void
|
|
init_group (GstPlayBin * playbin, GstSourceGroup * group)
|
|
{
|
|
/* store the array for the different channels */
|
|
group->video_channels = g_ptr_array_new ();
|
|
group->audio_channels = g_ptr_array_new ();
|
|
group->text_channels = g_ptr_array_new ();
|
|
group->subp_channels = g_ptr_array_new ();
|
|
group->lock = g_mutex_new ();
|
|
/* init selectors. The selector is found by finding the first prefix that
|
|
* matches the media. */
|
|
group->playbin = playbin;
|
|
group->selector[0].media = "audio/x-raw-";
|
|
group->selector[0].type = GST_PLAY_SINK_TYPE_AUDIO_RAW;
|
|
group->selector[0].channels = group->audio_channels;
|
|
group->selector[1].media = "audio/";
|
|
group->selector[1].type = GST_PLAY_SINK_TYPE_AUDIO;
|
|
group->selector[1].channels = group->audio_channels;
|
|
group->selector[2].media = "video/x-raw-";
|
|
group->selector[2].type = GST_PLAY_SINK_TYPE_VIDEO_RAW;
|
|
group->selector[2].channels = group->video_channels;
|
|
group->selector[3].media = "video/x-dvd-subpicture";
|
|
group->selector[3].type = GST_PLAY_SINK_TYPE_SUBPIC;
|
|
group->selector[3].channels = group->subp_channels;
|
|
group->selector[4].media = "video/";
|
|
group->selector[4].type = GST_PLAY_SINK_TYPE_VIDEO;
|
|
group->selector[4].channels = group->video_channels;
|
|
group->selector[5].media = "text/";
|
|
group->selector[5].type = GST_PLAY_SINK_TYPE_TEXT;
|
|
group->selector[5].channels = group->text_channels;
|
|
}
|
|
|
|
static void
|
|
free_group (GstPlayBin * playbin, GstSourceGroup * group)
|
|
{
|
|
g_free (group->uri);
|
|
g_ptr_array_free (group->video_channels, TRUE);
|
|
g_ptr_array_free (group->audio_channels, TRUE);
|
|
g_ptr_array_free (group->text_channels, TRUE);
|
|
g_ptr_array_free (group->subp_channels, TRUE);
|
|
g_mutex_free (group->lock);
|
|
}
|
|
|
|
static void
|
|
gst_play_bin_init (GstPlayBin * playbin)
|
|
{
|
|
GstFactoryListType type;
|
|
|
|
playbin->lock = g_mutex_new ();
|
|
playbin->dyn_lock = g_mutex_new ();
|
|
|
|
/* assume we can create a selector */
|
|
playbin->have_selector = TRUE;
|
|
|
|
/* init groups */
|
|
playbin->curr_group = &playbin->groups[0];
|
|
playbin->next_group = &playbin->groups[1];
|
|
init_group (playbin, &playbin->groups[0]);
|
|
init_group (playbin, &playbin->groups[1]);
|
|
|
|
/* first filter out the interesting element factories */
|
|
type = GST_FACTORY_LIST_DECODER | GST_FACTORY_LIST_SINK;
|
|
playbin->elements = gst_factory_list_get_elements (type);
|
|
gst_factory_list_debug (playbin->elements);
|
|
|
|
/* add sink */
|
|
playbin->playsink = g_object_new (GST_TYPE_PLAY_SINK, NULL);
|
|
gst_bin_add (GST_BIN_CAST (playbin), GST_ELEMENT_CAST (playbin->playsink));
|
|
gst_play_sink_set_flags (playbin->playsink, DEFAULT_FLAGS);
|
|
|
|
playbin->encoding = g_strdup (DEFAULT_SUBTITLE_ENCODING);
|
|
|
|
playbin->current_video = DEFAULT_CURRENT_VIDEO;
|
|
playbin->current_audio = DEFAULT_CURRENT_AUDIO;
|
|
playbin->current_text = DEFAULT_CURRENT_TEXT;
|
|
|
|
playbin->buffer_duration = DEFAULT_BUFFER_DURATION;
|
|
playbin->buffer_size = DEFAULT_BUFFER_SIZE;
|
|
}
|
|
|
|
static void
|
|
gst_play_bin_finalize (GObject * object)
|
|
{
|
|
GstPlayBin *playbin;
|
|
|
|
playbin = GST_PLAY_BIN (object);
|
|
|
|
free_group (playbin, &playbin->groups[0]);
|
|
free_group (playbin, &playbin->groups[1]);
|
|
|
|
if (playbin->source)
|
|
gst_object_unref (playbin->source);
|
|
|
|
g_value_array_free (playbin->elements);
|
|
g_free (playbin->encoding);
|
|
g_mutex_free (playbin->lock);
|
|
g_mutex_free (playbin->dyn_lock);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gst_play_bin_set_uri (GstPlayBin * playbin, const gchar * uri)
|
|
{
|
|
GstSourceGroup *group;
|
|
|
|
if (uri == NULL) {
|
|
g_warning ("cannot set NULL uri");
|
|
return;
|
|
}
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = playbin->next_group;
|
|
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
/* store the uri in the next group we will play */
|
|
g_free (group->uri);
|
|
group->uri = g_strdup (uri);
|
|
group->valid = TRUE;
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
|
|
GST_DEBUG ("set new uri to %s", uri);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
}
|
|
|
|
static void
|
|
gst_play_bin_set_suburi (GstPlayBin * playbin, const gchar * suburi)
|
|
{
|
|
GstSourceGroup *group;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = playbin->next_group;
|
|
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
g_free (group->suburi);
|
|
group->suburi = g_strdup (suburi);
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
|
|
GST_DEBUG ("setting new .sub uri to %s", suburi);
|
|
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
}
|
|
|
|
/* get the currently playing group or if nothing is playing, the next
|
|
* group. Must be called with the PLAY_BIN_LOCK. */
|
|
static GstSourceGroup *
|
|
get_group (GstPlayBin * playbin)
|
|
{
|
|
GstSourceGroup *result;
|
|
|
|
if (!(result = playbin->curr_group))
|
|
result = playbin->next_group;
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstPad *
|
|
gst_play_bin_get_video_pad (GstPlayBin * playbin, gint stream)
|
|
{
|
|
GstPad *sinkpad = NULL;
|
|
GstSourceGroup *group;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
if (stream < group->video_channels->len) {
|
|
sinkpad = g_ptr_array_index (group->video_channels, stream);
|
|
gst_object_ref (sinkpad);
|
|
}
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
return sinkpad;
|
|
}
|
|
|
|
static GstPad *
|
|
gst_play_bin_get_audio_pad (GstPlayBin * playbin, gint stream)
|
|
{
|
|
GstPad *sinkpad = NULL;
|
|
GstSourceGroup *group;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
if (stream < group->audio_channels->len) {
|
|
sinkpad = g_ptr_array_index (group->audio_channels, stream);
|
|
gst_object_ref (sinkpad);
|
|
}
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
return sinkpad;
|
|
}
|
|
|
|
static GstPad *
|
|
gst_play_bin_get_text_pad (GstPlayBin * playbin, gint stream)
|
|
{
|
|
GstPad *sinkpad = NULL;
|
|
GstSourceGroup *group;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
if (stream < group->text_channels->len) {
|
|
sinkpad = g_ptr_array_index (group->text_channels, stream);
|
|
gst_object_ref (sinkpad);
|
|
}
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
return sinkpad;
|
|
}
|
|
|
|
|
|
static GstTagList *
|
|
get_tags (GstPlayBin * playbin, GPtrArray * channels, gint stream)
|
|
{
|
|
GstTagList *result;
|
|
GstPad *sinkpad;
|
|
|
|
if (!channels || stream >= channels->len)
|
|
return NULL;
|
|
|
|
sinkpad = g_ptr_array_index (channels, stream);
|
|
g_object_get (sinkpad, "tags", &result, NULL);
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstTagList *
|
|
gst_play_bin_get_video_tags (GstPlayBin * playbin, gint stream)
|
|
{
|
|
GstTagList *result;
|
|
GstSourceGroup *group;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
result = get_tags (playbin, group->video_channels, stream);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstTagList *
|
|
gst_play_bin_get_audio_tags (GstPlayBin * playbin, gint stream)
|
|
{
|
|
GstTagList *result;
|
|
GstSourceGroup *group;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
result = get_tags (playbin, group->audio_channels, stream);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstTagList *
|
|
gst_play_bin_get_text_tags (GstPlayBin * playbin, gint stream)
|
|
{
|
|
GstTagList *result;
|
|
GstSourceGroup *group;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
result = get_tags (playbin, group->text_channels, stream);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_play_bin_convert_frame (GstPlayBin * playbin, GstCaps * caps)
|
|
{
|
|
GstBuffer *result;
|
|
|
|
result = gst_play_sink_get_last_frame (playbin->playsink);
|
|
if (result != NULL && caps != NULL) {
|
|
GstBuffer *temp;
|
|
|
|
temp = gst_play_frame_conv_convert (result, caps);
|
|
gst_buffer_unref (result);
|
|
result = temp;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/* Returns current stream number, or -1 if none has been selected yet */
|
|
static int
|
|
get_current_stream_number (GstPlayBin * playbin, GPtrArray * channels)
|
|
{
|
|
/* Internal API cleanup would make this easier... */
|
|
int i;
|
|
GstPad *pad, *current;
|
|
GstObject *selector = NULL;
|
|
int ret = -1;
|
|
|
|
for (i = 0; i < channels->len; i++) {
|
|
pad = g_ptr_array_index (channels, i);
|
|
if ((selector = gst_pad_get_parent (pad))) {
|
|
g_object_get (selector, "active-pad", ¤t, NULL);
|
|
gst_object_unref (selector);
|
|
|
|
if (pad == current) {
|
|
gst_object_unref (current);
|
|
ret = i;
|
|
break;
|
|
}
|
|
|
|
if (current)
|
|
gst_object_unref (current);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_play_bin_set_current_video_stream (GstPlayBin * playbin, gint stream)
|
|
{
|
|
GstSourceGroup *group;
|
|
GPtrArray *channels;
|
|
GstPad *sinkpad;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
if (!(channels = group->video_channels))
|
|
goto no_channels;
|
|
|
|
if (stream == -1 || channels->len <= stream) {
|
|
sinkpad = NULL;
|
|
} else {
|
|
/* take channel from selected stream */
|
|
sinkpad = g_ptr_array_index (channels, stream);
|
|
}
|
|
|
|
if (sinkpad)
|
|
gst_object_ref (sinkpad);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
if (sinkpad) {
|
|
GstObject *selector;
|
|
|
|
if ((selector = gst_pad_get_parent (sinkpad))) {
|
|
/* activate the selected pad */
|
|
g_object_set (selector, "active-pad", sinkpad, NULL);
|
|
gst_object_unref (selector);
|
|
}
|
|
gst_object_unref (sinkpad);
|
|
}
|
|
return TRUE;
|
|
|
|
no_channels:
|
|
{
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_play_bin_set_current_audio_stream (GstPlayBin * playbin, gint stream)
|
|
{
|
|
GstSourceGroup *group;
|
|
GPtrArray *channels;
|
|
GstPad *sinkpad;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
if (!(channels = group->audio_channels))
|
|
goto no_channels;
|
|
|
|
if (stream == -1 || channels->len <= stream) {
|
|
sinkpad = NULL;
|
|
} else {
|
|
/* take channel from selected stream */
|
|
sinkpad = g_ptr_array_index (channels, stream);
|
|
}
|
|
|
|
if (sinkpad)
|
|
gst_object_ref (sinkpad);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
if (sinkpad) {
|
|
GstObject *selector;
|
|
|
|
if ((selector = gst_pad_get_parent (sinkpad))) {
|
|
/* activate the selected pad */
|
|
g_object_set (selector, "active-pad", sinkpad, NULL);
|
|
gst_object_unref (selector);
|
|
}
|
|
gst_object_unref (sinkpad);
|
|
}
|
|
return TRUE;
|
|
|
|
no_channels:
|
|
{
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_play_bin_set_current_text_stream (GstPlayBin * playbin, gint stream)
|
|
{
|
|
GstSourceGroup *group;
|
|
GPtrArray *channels;
|
|
GstPad *sinkpad;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
if (!(channels = group->text_channels))
|
|
goto no_channels;
|
|
|
|
if (stream == -1 || channels->len <= stream) {
|
|
sinkpad = NULL;
|
|
} else {
|
|
/* take channel from selected stream */
|
|
sinkpad = g_ptr_array_index (channels, stream);
|
|
}
|
|
|
|
if (sinkpad)
|
|
gst_object_ref (sinkpad);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
if (sinkpad) {
|
|
GstObject *selector;
|
|
|
|
if ((selector = gst_pad_get_parent (sinkpad))) {
|
|
/* activate the selected pad */
|
|
g_object_set (selector, "active-pad", sinkpad, NULL);
|
|
gst_object_unref (selector);
|
|
}
|
|
gst_object_unref (sinkpad);
|
|
}
|
|
return TRUE;
|
|
|
|
no_channels:
|
|
{
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_play_bin_set_encoding (GstPlayBin * playbin, const gchar * encoding)
|
|
{
|
|
GstElement *elem;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
g_free (playbin->encoding);
|
|
playbin->encoding = g_strdup (encoding);
|
|
|
|
/* set subtitles on all current and next decodebins. */
|
|
if ((elem = playbin->groups[0].uridecodebin))
|
|
g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
|
|
if ((elem = playbin->groups[0].suburidecodebin))
|
|
g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
|
|
if ((elem = playbin->groups[1].uridecodebin))
|
|
g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
|
|
if ((elem = playbin->groups[1].suburidecodebin))
|
|
g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
}
|
|
|
|
static void
|
|
gst_play_bin_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstPlayBin *playbin;
|
|
|
|
playbin = GST_PLAY_BIN (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_URI:
|
|
gst_play_bin_set_uri (playbin, g_value_get_string (value));
|
|
break;
|
|
case PROP_SUBURI:
|
|
gst_play_bin_set_suburi (playbin, g_value_get_string (value));
|
|
break;
|
|
case PROP_FLAGS:
|
|
gst_play_sink_set_flags (playbin->playsink, g_value_get_flags (value));
|
|
gst_play_sink_reconfigure (playbin->playsink);
|
|
break;
|
|
case PROP_CURRENT_VIDEO:
|
|
gst_play_bin_set_current_video_stream (playbin, g_value_get_int (value));
|
|
break;
|
|
case PROP_CURRENT_AUDIO:
|
|
gst_play_bin_set_current_audio_stream (playbin, g_value_get_int (value));
|
|
break;
|
|
case PROP_CURRENT_TEXT:
|
|
gst_play_bin_set_current_text_stream (playbin, g_value_get_int (value));
|
|
break;
|
|
case PROP_SUBTITLE_ENCODING:
|
|
gst_play_bin_set_encoding (playbin, g_value_get_string (value));
|
|
break;
|
|
case PROP_VIDEO_SINK:
|
|
gst_play_sink_set_video_sink (playbin->playsink,
|
|
g_value_get_object (value));
|
|
break;
|
|
case PROP_AUDIO_SINK:
|
|
gst_play_sink_set_audio_sink (playbin->playsink,
|
|
g_value_get_object (value));
|
|
break;
|
|
case PROP_VIS_PLUGIN:
|
|
gst_play_sink_set_vis_plugin (playbin->playsink,
|
|
g_value_get_object (value));
|
|
break;
|
|
case PROP_TEXT_SINK:
|
|
gst_play_sink_set_text_sink (playbin->playsink,
|
|
g_value_get_object (value));
|
|
break;
|
|
case PROP_VOLUME:
|
|
gst_play_sink_set_volume (playbin->playsink, g_value_get_double (value));
|
|
break;
|
|
case PROP_MUTE:
|
|
gst_play_sink_set_mute (playbin->playsink, g_value_get_boolean (value));
|
|
break;
|
|
case PROP_FONT_DESC:
|
|
gst_play_sink_set_font_desc (playbin->playsink,
|
|
g_value_get_string (value));
|
|
break;
|
|
case PROP_CONNECTION_SPEED:
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
playbin->connection_speed = g_value_get_uint (value) * 1000;
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
case PROP_BUFFER_SIZE:
|
|
playbin->buffer_size = g_value_get_int (value);
|
|
break;
|
|
case PROP_BUFFER_DURATION:
|
|
playbin->buffer_duration = g_value_get_int64 (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_play_bin_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstPlayBin *playbin;
|
|
|
|
playbin = GST_PLAY_BIN (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_URI:
|
|
{
|
|
GstSourceGroup *group;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
g_value_set_string (value, group->uri);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
}
|
|
case PROP_SUBURI:
|
|
{
|
|
GstSourceGroup *group;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
g_value_set_string (value, group->suburi);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
}
|
|
case PROP_SOURCE:
|
|
{
|
|
GST_OBJECT_LOCK (playbin);
|
|
g_value_set_object (value, playbin->source);
|
|
GST_OBJECT_UNLOCK (playbin);
|
|
break;
|
|
}
|
|
case PROP_FLAGS:
|
|
g_value_set_flags (value, gst_play_sink_get_flags (playbin->playsink));
|
|
break;
|
|
case PROP_N_VIDEO:
|
|
{
|
|
GstSourceGroup *group;
|
|
gint n_video;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
n_video = (group->video_channels ? group->video_channels->len : 0);
|
|
g_value_set_int (value, n_video);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
}
|
|
case PROP_CURRENT_VIDEO:
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
g_value_set_int (value, playbin->current_video);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
case PROP_N_AUDIO:
|
|
{
|
|
GstSourceGroup *group;
|
|
gint n_audio;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
n_audio = (group->audio_channels ? group->audio_channels->len : 0);
|
|
g_value_set_int (value, n_audio);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
}
|
|
case PROP_CURRENT_AUDIO:
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
g_value_set_int (value, playbin->current_audio);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
case PROP_N_TEXT:
|
|
{
|
|
GstSourceGroup *group;
|
|
gint n_text;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
n_text = (group->text_channels ? group->text_channels->len : 0);
|
|
g_value_set_int (value, n_text);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
}
|
|
case PROP_CURRENT_TEXT:
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
g_value_set_int (value, playbin->current_text);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
case PROP_SUBTITLE_ENCODING:
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
g_value_set_string (value, playbin->encoding);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
case PROP_VIDEO_SINK:
|
|
g_value_set_object (value,
|
|
gst_play_sink_get_video_sink (playbin->playsink));
|
|
break;
|
|
case PROP_AUDIO_SINK:
|
|
g_value_set_object (value,
|
|
gst_play_sink_get_audio_sink (playbin->playsink));
|
|
break;
|
|
case PROP_VIS_PLUGIN:
|
|
g_value_set_object (value,
|
|
gst_play_sink_get_vis_plugin (playbin->playsink));
|
|
break;
|
|
case PROP_TEXT_SINK:
|
|
g_value_set_object (value,
|
|
gst_play_sink_get_text_sink (playbin->playsink));
|
|
break;
|
|
case PROP_VOLUME:
|
|
g_value_set_double (value, gst_play_sink_get_volume (playbin->playsink));
|
|
break;
|
|
case PROP_MUTE:
|
|
g_value_set_boolean (value, gst_play_sink_get_mute (playbin->playsink));
|
|
break;
|
|
case PROP_FRAME:
|
|
gst_value_take_buffer (value, gst_play_bin_convert_frame (playbin, NULL));
|
|
break;
|
|
case PROP_FONT_DESC:
|
|
g_value_take_string (value,
|
|
gst_play_sink_get_font_desc (playbin->playsink));
|
|
break;
|
|
case PROP_CONNECTION_SPEED:
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
g_value_set_uint (value, playbin->connection_speed / 1000);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
break;
|
|
case PROP_BUFFER_SIZE:
|
|
GST_OBJECT_LOCK (playbin);
|
|
g_value_set_int (value, playbin->buffer_size);
|
|
GST_OBJECT_UNLOCK (playbin);
|
|
break;
|
|
case PROP_BUFFER_DURATION:
|
|
GST_OBJECT_LOCK (playbin);
|
|
g_value_set_int64 (value, playbin->buffer_duration);
|
|
GST_OBJECT_UNLOCK (playbin);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* mime types we are not handling on purpose right now, don't post a
|
|
* missing-plugin message for these */
|
|
static const gchar *blacklisted_mimes[] = {
|
|
"video/x-dvd-subpicture", NULL
|
|
};
|
|
|
|
static void
|
|
gst_play_bin_handle_message (GstBin * bin, GstMessage * msg)
|
|
{
|
|
if (gst_is_missing_plugin_message (msg)) {
|
|
gchar *detail;
|
|
guint i;
|
|
|
|
detail = gst_missing_plugin_message_get_installer_detail (msg);
|
|
for (i = 0; detail != NULL && blacklisted_mimes[i] != NULL; ++i) {
|
|
if (strstr (detail, "|decoder-") && strstr (detail, blacklisted_mimes[i])) {
|
|
GST_LOG_OBJECT (bin, "suppressing message %" GST_PTR_FORMAT, msg);
|
|
gst_message_unref (msg);
|
|
g_free (detail);
|
|
return;
|
|
}
|
|
}
|
|
g_free (detail);
|
|
}
|
|
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
|
|
}
|
|
|
|
static void
|
|
selector_active_pad_changed (GObject * selector, GParamSpec * pspec,
|
|
GstPlayBin * playbin)
|
|
{
|
|
gchar *property;
|
|
GstSourceGroup *group;
|
|
GstSourceSelect *select = NULL;
|
|
int i;
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
group = get_group (playbin);
|
|
|
|
for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
|
|
if (selector == G_OBJECT (group->selector[i].selector)) {
|
|
select = &group->selector[i];
|
|
}
|
|
}
|
|
|
|
/* We got a pad-change after our group got switched out; no need to notify */
|
|
if (!select) {
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
return;
|
|
}
|
|
|
|
switch (select->type) {
|
|
case GST_PLAY_SINK_TYPE_VIDEO:
|
|
case GST_PLAY_SINK_TYPE_VIDEO_RAW:
|
|
property = "current-video";
|
|
playbin->current_video = get_current_stream_number (playbin,
|
|
group->video_channels);
|
|
break;
|
|
case GST_PLAY_SINK_TYPE_AUDIO:
|
|
case GST_PLAY_SINK_TYPE_AUDIO_RAW:
|
|
property = "current-audio";
|
|
playbin->current_audio = get_current_stream_number (playbin,
|
|
group->audio_channels);
|
|
break;
|
|
case GST_PLAY_SINK_TYPE_TEXT:
|
|
property = "current-text";
|
|
playbin->current_text = get_current_stream_number (playbin,
|
|
group->text_channels);
|
|
break;
|
|
default:
|
|
property = NULL;
|
|
}
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
if (property)
|
|
g_object_notify (G_OBJECT (playbin), property);
|
|
}
|
|
|
|
static void
|
|
selector_blocked (GstPad * pad, gboolean blocked, gpointer user_data)
|
|
{
|
|
/* no nothing */
|
|
GST_DEBUG_OBJECT (pad, "blocked callback, blocked: %d", blocked);
|
|
}
|
|
|
|
/* this function is called when a new pad is added to decodebin. We check the
|
|
* type of the pad and add it to the selector element of the group.
|
|
*/
|
|
static void
|
|
pad_added_cb (GstElement * decodebin, GstPad * pad, GstSourceGroup * group)
|
|
{
|
|
GstPlayBin *playbin;
|
|
GstCaps *caps;
|
|
const GstStructure *s;
|
|
const gchar *name;
|
|
GstPad *sinkpad;
|
|
GstPadLinkReturn res;
|
|
GstSourceSelect *select = NULL;
|
|
gint i;
|
|
gboolean changed = FALSE;
|
|
|
|
playbin = group->playbin;
|
|
|
|
caps = gst_pad_get_caps (pad);
|
|
s = gst_caps_get_structure (caps, 0);
|
|
name = gst_structure_get_name (s);
|
|
|
|
GST_DEBUG_OBJECT (playbin,
|
|
"pad %s:%s with caps %" GST_PTR_FORMAT " added in group %p",
|
|
GST_DEBUG_PAD_NAME (pad), caps, group);
|
|
|
|
/* major type of the pad, this determines the selector to use */
|
|
for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
|
|
if (g_str_has_prefix (name, group->selector[i].media)) {
|
|
select = &group->selector[i];
|
|
break;
|
|
}
|
|
}
|
|
/* no selector found for the media type, don't bother linking it to a
|
|
* selector. This will leave the pad unlinked and thus ignored. */
|
|
if (select == NULL)
|
|
goto unknown_type;
|
|
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
if (select->selector == NULL && playbin->have_selector) {
|
|
/* no selector, create one */
|
|
GST_DEBUG_OBJECT (playbin, "creating new selector");
|
|
select->selector = gst_element_factory_make ("input-selector", NULL);
|
|
if (select->selector == NULL) {
|
|
/* post the missing selector message only once */
|
|
playbin->have_selector = FALSE;
|
|
gst_element_post_message (GST_ELEMENT_CAST (playbin),
|
|
gst_missing_element_message_new (GST_ELEMENT_CAST (playbin),
|
|
"input-selector"));
|
|
GST_ELEMENT_WARNING (playbin, CORE, MISSING_PLUGIN,
|
|
(_("Missing element '%s' - check your GStreamer installation."),
|
|
"input-selector"), (NULL));
|
|
} else {
|
|
g_signal_connect (select->selector, "notify::active-pad",
|
|
G_CALLBACK (selector_active_pad_changed), playbin);
|
|
|
|
GST_DEBUG_OBJECT (playbin, "adding new selector %p", select->selector);
|
|
gst_bin_add (GST_BIN_CAST (playbin), select->selector);
|
|
gst_element_set_state (select->selector, GST_STATE_PAUSED);
|
|
}
|
|
}
|
|
|
|
if (select->srcpad == NULL) {
|
|
if (select->selector) {
|
|
/* save source pad of the selector */
|
|
select->srcpad = gst_element_get_static_pad (select->selector, "src");
|
|
} else {
|
|
/* no selector, use the pad as the source pad then */
|
|
select->srcpad = gst_object_ref (pad);
|
|
}
|
|
/* block the selector srcpad. It's possible that multiple decodebins start
|
|
* pushing data into the selectors before we have a chance to collect all
|
|
* streams and connect the sinks, resulting in not-linked errors. After we
|
|
* configured the sinks we will unblock them all. */
|
|
gst_pad_set_blocked_async (select->srcpad, TRUE, selector_blocked, NULL);
|
|
}
|
|
|
|
/* get sinkpad for the new stream */
|
|
if (select->selector) {
|
|
if ((sinkpad = gst_element_get_request_pad (select->selector, "sink%d"))) {
|
|
GST_DEBUG_OBJECT (playbin, "got pad %s:%s from selector",
|
|
GST_DEBUG_PAD_NAME (sinkpad));
|
|
|
|
/* store the selector for the pad */
|
|
g_object_set_data (G_OBJECT (sinkpad), "playbin2.select", select);
|
|
|
|
/* store the pad in the array */
|
|
GST_DEBUG_OBJECT (playbin, "pad %p added to array", sinkpad);
|
|
g_ptr_array_add (select->channels, sinkpad);
|
|
|
|
res = gst_pad_link (pad, sinkpad);
|
|
if (GST_PAD_LINK_FAILED (res))
|
|
goto link_failed;
|
|
|
|
/* store selector pad so we can release it */
|
|
g_object_set_data (G_OBJECT (pad), "playbin2.sinkpad", sinkpad);
|
|
|
|
changed = TRUE;
|
|
GST_DEBUG_OBJECT (playbin, "linked pad %s:%s to selector %p",
|
|
GST_DEBUG_PAD_NAME (pad), select->selector);
|
|
}
|
|
} else {
|
|
/* no selector, don't configure anything, we'll link the new pad directly to
|
|
* the sink. */
|
|
changed = FALSE;
|
|
sinkpad = NULL;
|
|
}
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
|
|
if (changed) {
|
|
int signal;
|
|
switch (select->type) {
|
|
case GST_PLAY_SINK_TYPE_VIDEO:
|
|
case GST_PLAY_SINK_TYPE_VIDEO_RAW:
|
|
/* we want to return NOT_LINKED for unselected pads but only for audio
|
|
* and video pads because text pads might come from an external file. */
|
|
g_object_set (sinkpad, "always-ok", FALSE, NULL);
|
|
signal = SIGNAL_VIDEO_CHANGED;
|
|
break;
|
|
case GST_PLAY_SINK_TYPE_AUDIO:
|
|
case GST_PLAY_SINK_TYPE_AUDIO_RAW:
|
|
g_object_set (sinkpad, "always-ok", FALSE, NULL);
|
|
signal = SIGNAL_AUDIO_CHANGED;
|
|
break;
|
|
case GST_PLAY_SINK_TYPE_TEXT:
|
|
signal = SIGNAL_TEXT_CHANGED;
|
|
break;
|
|
case GST_PLAY_SINK_TYPE_SUBPIC:
|
|
default:
|
|
signal = -1;
|
|
}
|
|
|
|
if (signal >= 0)
|
|
g_signal_emit (G_OBJECT (playbin), gst_play_bin_signals[signal], 0, NULL);
|
|
}
|
|
|
|
done:
|
|
gst_caps_unref (caps);
|
|
return;
|
|
|
|
/* ERRORS */
|
|
unknown_type:
|
|
{
|
|
GST_ERROR_OBJECT (playbin, "unknown type %s for pad %s:%s",
|
|
name, GST_DEBUG_PAD_NAME (pad));
|
|
goto done;
|
|
}
|
|
link_failed:
|
|
{
|
|
GST_ERROR_OBJECT (playbin,
|
|
"failed to link pad %s:%s to selector, reason %d",
|
|
GST_DEBUG_PAD_NAME (pad), res);
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* called when a pad is removed from the uridecodebin. We unlink the pad from
|
|
* the selector. This will make the selector select a new pad. */
|
|
static void
|
|
pad_removed_cb (GstElement * decodebin, GstPad * pad, GstSourceGroup * group)
|
|
{
|
|
GstPlayBin *playbin;
|
|
GstPad *peer;
|
|
GstElement *selector;
|
|
GstSourceSelect *select;
|
|
|
|
playbin = group->playbin;
|
|
|
|
GST_DEBUG_OBJECT (playbin,
|
|
"pad %s:%s removed from group %p", GST_DEBUG_PAD_NAME (pad), group);
|
|
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
/* get the selector sinkpad */
|
|
if (!(peer = g_object_get_data (G_OBJECT (pad), "playbin2.sinkpad")))
|
|
goto not_linked;
|
|
|
|
if ((select = g_object_get_data (G_OBJECT (peer), "playbin2.select"))) {
|
|
/* remove the pad from the array */
|
|
g_ptr_array_remove (select->channels, peer);
|
|
GST_DEBUG_OBJECT (playbin, "pad %p removed from array", peer);
|
|
}
|
|
|
|
/* unlink the pad now (can fail, the pad is unlinked before it's removed) */
|
|
gst_pad_unlink (pad, peer);
|
|
|
|
/* get selector, this can be NULL when the element is removing the pads
|
|
* because it's being disposed. */
|
|
selector = GST_ELEMENT_CAST (gst_pad_get_parent (peer));
|
|
if (!selector) {
|
|
gst_object_unref (peer);
|
|
goto no_selector;
|
|
}
|
|
|
|
/* release the pad to the selector, this will make the selector choose a new
|
|
* pad. */
|
|
gst_element_release_request_pad (selector, peer);
|
|
gst_object_unref (peer);
|
|
|
|
gst_object_unref (selector);
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
not_linked:
|
|
{
|
|
GST_DEBUG_OBJECT (playbin, "pad not linked");
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
return;
|
|
}
|
|
no_selector:
|
|
{
|
|
GST_DEBUG_OBJECT (playbin, "selector not found");
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* we get called when all pads are available and we must connect the sinks to
|
|
* them.
|
|
* The main purpose of the code is to see if we have video/audio and subtitles
|
|
* and pick the right pipelines to display them.
|
|
*
|
|
* The selectors installed on the group tell us about the presence of
|
|
* audio/video and subtitle streams. This allows us to see if we need
|
|
* visualisation, video or/and audio.
|
|
*/
|
|
static void
|
|
no_more_pads_cb (GstElement * decodebin, GstSourceGroup * group)
|
|
{
|
|
GstPlayBin *playbin;
|
|
GstPadLinkReturn res;
|
|
gint i;
|
|
gboolean configure;
|
|
|
|
playbin = group->playbin;
|
|
|
|
GST_DEBUG_OBJECT (playbin, "no more pads in group %p", group);
|
|
|
|
GST_PLAY_BIN_SHUTDOWN_LOCK (playbin, shutdown);
|
|
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
|
|
GstSourceSelect *select = &group->selector[i];
|
|
|
|
/* check if the specific media type was detected and thus has a selector
|
|
* created for it. If there is the media type, get a sinkpad from the sink
|
|
* and link it. We only do this if we have not yet requested the sinkpad
|
|
* before. */
|
|
if (select->srcpad && select->sinkpad == NULL) {
|
|
GST_DEBUG_OBJECT (playbin, "requesting new sink pad %d", select->type);
|
|
select->sinkpad =
|
|
gst_play_sink_request_pad (playbin->playsink, select->type);
|
|
res = gst_pad_link (select->srcpad, select->sinkpad);
|
|
GST_DEBUG_OBJECT (playbin, "linked type %s, result: %d", select->media,
|
|
res);
|
|
if (res != GST_PAD_LINK_OK) {
|
|
GST_ELEMENT_ERROR (playbin, CORE, PAD,
|
|
("Internal playbin error."),
|
|
("Failed to link selector to sink. Error %d", res));
|
|
}
|
|
}
|
|
}
|
|
GST_DEBUG_OBJECT (playbin, "pending %d > %d", group->pending,
|
|
group->pending - 1);
|
|
|
|
if (group->pending > 0)
|
|
group->pending--;
|
|
|
|
if (group->pending == 0) {
|
|
/* we are the last group to complete, we will configure the output and then
|
|
* signal the other waiters. */
|
|
GST_LOG_OBJECT (playbin, "last group complete");
|
|
configure = TRUE;
|
|
} else {
|
|
GST_LOG_OBJECT (playbin, "have more pending groups");
|
|
configure = FALSE;
|
|
}
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
|
|
if (configure) {
|
|
GST_LOG_OBJECT (playbin, "reconfigure sink");
|
|
/* we configure the modes if we were the last decodebin to complete. */
|
|
gst_play_sink_reconfigure (playbin->playsink);
|
|
|
|
/* signal the other decodebins that they can continue now. */
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
/* unblock all selectors */
|
|
for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
|
|
GstSourceSelect *select = &group->selector[i];
|
|
|
|
if (select->srcpad) {
|
|
GST_DEBUG_OBJECT (playbin, "unblocking %" GST_PTR_FORMAT,
|
|
select->srcpad);
|
|
gst_pad_set_blocked_async (select->srcpad, FALSE, selector_blocked,
|
|
NULL);
|
|
}
|
|
}
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
}
|
|
|
|
GST_PLAY_BIN_SHUTDOWN_UNLOCK (playbin);
|
|
|
|
return;
|
|
|
|
shutdown:
|
|
{
|
|
GST_DEBUG ("ignoring, we are shutting down");
|
|
/* Request a flushing pad from playsink that we then link to the selector.
|
|
* Then we unblock the selectors so that they stop with a WRONG_STATE
|
|
* instead of a NOT_LINKED error.
|
|
*/
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
|
|
GstSourceSelect *select = &group->selector[i];
|
|
|
|
if (select->srcpad) {
|
|
if (select->sinkpad == NULL) {
|
|
GST_DEBUG_OBJECT (playbin, "requesting new flushing sink pad");
|
|
select->sinkpad =
|
|
gst_play_sink_request_pad (playbin->playsink,
|
|
GST_PLAY_SINK_TYPE_FLUSHING);
|
|
res = gst_pad_link (select->srcpad, select->sinkpad);
|
|
GST_DEBUG_OBJECT (playbin, "linked flushing, result: %d", res);
|
|
}
|
|
GST_DEBUG_OBJECT (playbin, "unblocking %" GST_PTR_FORMAT,
|
|
select->srcpad);
|
|
gst_pad_set_blocked_async (select->srcpad, FALSE, selector_blocked,
|
|
NULL);
|
|
}
|
|
}
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void
|
|
drained_cb (GstElement * decodebin, GstSourceGroup * group)
|
|
{
|
|
GstPlayBin *playbin;
|
|
|
|
playbin = group->playbin;
|
|
|
|
GST_DEBUG_OBJECT (playbin, "about to finish in group %p", group);
|
|
|
|
/* after this call, we should have a next group to activate or we EOS */
|
|
g_signal_emit (G_OBJECT (playbin),
|
|
gst_play_bin_signals[SIGNAL_ABOUT_TO_FINISH], 0, NULL);
|
|
|
|
/* now activate the next group. If the app did not set a uri, this will
|
|
* fail and we can do EOS */
|
|
setup_next_source (playbin);
|
|
}
|
|
|
|
/* Called when we must provide a list of factories to plug to @pad with @caps.
|
|
* We first check if we have a sink that can handle the format and if we do, we
|
|
* return NULL, to expose the pad. If we have no sink (or the sink does not
|
|
* work), we return the list of elements that can connect. */
|
|
static GValueArray *
|
|
autoplug_factories_cb (GstElement * decodebin, GstPad * pad,
|
|
GstCaps * caps, GstSourceGroup * group)
|
|
{
|
|
GstPlayBin *playbin;
|
|
GValueArray *result;
|
|
|
|
playbin = group->playbin;
|
|
|
|
GST_DEBUG_OBJECT (playbin, "factories group %p for %s:%s, %" GST_PTR_FORMAT,
|
|
group, GST_DEBUG_PAD_NAME (pad), caps);
|
|
|
|
/* filter out the elements based on the caps. */
|
|
result = gst_factory_list_filter (playbin->elements, caps);
|
|
|
|
GST_DEBUG_OBJECT (playbin, "found factories %p", result);
|
|
gst_factory_list_debug (result);
|
|
|
|
return result;
|
|
}
|
|
|
|
/* We are asked to select an element. See if the next element to check
|
|
* is a sink. If this is the case, we see if the sink works by setting it to
|
|
* READY. If the sink works, we return SELECT_EXPOSE to make decodebin
|
|
* expose the raw pad so that we can setup the mixers. */
|
|
static GstAutoplugSelectResult
|
|
autoplug_select_cb (GstElement * decodebin, GstPad * pad,
|
|
GstCaps * caps, GstElementFactory * factory, GstSourceGroup * group)
|
|
{
|
|
GstPlayBin *playbin;
|
|
GstElement *element;
|
|
const gchar *klass;
|
|
|
|
playbin = group->playbin;
|
|
|
|
GST_DEBUG_OBJECT (playbin, "select group %p for %s:%s, %" GST_PTR_FORMAT,
|
|
group, GST_DEBUG_PAD_NAME (pad), caps);
|
|
|
|
GST_DEBUG_OBJECT (playbin, "checking factory %s",
|
|
GST_PLUGIN_FEATURE_NAME (factory));
|
|
|
|
/* if it's not a sink, we just make decodebin try it */
|
|
if (!gst_factory_list_is_type (factory, GST_FACTORY_LIST_SINK))
|
|
return GST_AUTOPLUG_SELECT_TRY;
|
|
|
|
/* it's a sink, see if an instance of it actually works */
|
|
GST_DEBUG_OBJECT (playbin, "we found a sink");
|
|
|
|
klass = gst_element_factory_get_klass (factory);
|
|
|
|
/* if we are asked to do visualisations and it's an audio sink, skip the
|
|
* element. We can only do visualisations with raw sinks */
|
|
if (gst_play_sink_get_flags (playbin->playsink) & GST_PLAY_FLAG_VIS) {
|
|
if (strstr (klass, "Audio")) {
|
|
GST_DEBUG_OBJECT (playbin, "skip audio sink because of vis");
|
|
return GST_AUTOPLUG_SELECT_SKIP;
|
|
}
|
|
}
|
|
|
|
if ((element = gst_element_factory_create (factory, NULL)) == NULL) {
|
|
GST_WARNING_OBJECT (playbin, "Could not create an element from %s",
|
|
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
|
|
return GST_AUTOPLUG_SELECT_SKIP;
|
|
}
|
|
|
|
/* ... activate it ... We do this before adding it to the bin so that we
|
|
* don't accidentally make it post error messages that will stop
|
|
* everything. */
|
|
if ((gst_element_set_state (element,
|
|
GST_STATE_READY)) == GST_STATE_CHANGE_FAILURE) {
|
|
GST_WARNING_OBJECT (playbin, "Couldn't set %s to READY",
|
|
GST_ELEMENT_NAME (element));
|
|
gst_object_unref (element);
|
|
return GST_AUTOPLUG_SELECT_SKIP;
|
|
}
|
|
|
|
/* get klass to figure out if it's audio or video */
|
|
if (strstr (klass, "Audio")) {
|
|
GST_DEBUG_OBJECT (playbin, "configure audio sink");
|
|
gst_play_sink_set_audio_sink (playbin->playsink, element);
|
|
g_object_notify (G_OBJECT (playbin), "audio-sink");
|
|
} else if (strstr (klass, "Video")) {
|
|
GST_DEBUG_OBJECT (playbin, "configure video sink");
|
|
gst_play_sink_set_video_sink (playbin->playsink, element);
|
|
g_object_notify (G_OBJECT (playbin), "video-sink");
|
|
} else {
|
|
GST_WARNING_OBJECT (playbin, "unknown sink klass %s found", klass);
|
|
}
|
|
|
|
/* tell decodebin to expose the pad because we are going to use this
|
|
* sink */
|
|
GST_DEBUG_OBJECT (playbin, "we found a working sink, expose pad");
|
|
|
|
return GST_AUTOPLUG_SELECT_EXPOSE;
|
|
}
|
|
|
|
static void
|
|
notify_source_cb (GstElement * uridecodebin, GParamSpec * pspec,
|
|
GstSourceGroup * group)
|
|
{
|
|
GstPlayBin *playbin;
|
|
GstElement *source;
|
|
|
|
playbin = group->playbin;
|
|
|
|
g_object_get (group->uridecodebin, "source", &source, NULL);
|
|
|
|
GST_OBJECT_LOCK (playbin);
|
|
if (playbin->source)
|
|
gst_object_unref (playbin->source);
|
|
playbin->source = source;
|
|
GST_OBJECT_UNLOCK (playbin);
|
|
|
|
g_object_notify (G_OBJECT (playbin), "source");
|
|
}
|
|
|
|
/* must be called with the group lock */
|
|
static gboolean
|
|
group_set_locked_state_unlocked (GstPlayBin * playbin, GstSourceGroup * group,
|
|
gboolean locked)
|
|
{
|
|
GST_DEBUG_OBJECT (playbin, "locked_state %d on group %p", locked, group);
|
|
|
|
if (group->uridecodebin)
|
|
gst_element_set_locked_state (group->uridecodebin, locked);
|
|
if (group->suburidecodebin)
|
|
gst_element_set_locked_state (group->suburidecodebin, locked);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#define REMOVE_SIGNAL(obj,id) \
|
|
if (id) { \
|
|
g_signal_handler_disconnect (obj, id); \
|
|
id = 0; \
|
|
}
|
|
|
|
/* must be called with PLAY_BIN_LOCK */
|
|
static gboolean
|
|
activate_group (GstPlayBin * playbin, GstSourceGroup * group)
|
|
{
|
|
GstElement *uridecodebin;
|
|
GstElement *suburidecodebin = NULL;
|
|
|
|
g_return_val_if_fail (group->valid, FALSE);
|
|
g_return_val_if_fail (!group->active, FALSE);
|
|
|
|
GST_DEBUG_OBJECT (playbin, "activating group %p", group);
|
|
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
if (group->uridecodebin) {
|
|
GST_DEBUG_OBJECT (playbin, "reusing existing uridecodebin");
|
|
REMOVE_SIGNAL (group->uridecodebin, group->pad_added_id);
|
|
REMOVE_SIGNAL (group->uridecodebin, group->pad_removed_id);
|
|
REMOVE_SIGNAL (group->uridecodebin, group->no_more_pads_id);
|
|
REMOVE_SIGNAL (group->uridecodebin, group->notify_source_id);
|
|
REMOVE_SIGNAL (group->uridecodebin, group->drained_id);
|
|
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_factories_id);
|
|
REMOVE_SIGNAL (group->uridecodebin, group->autoplug_select_id);
|
|
gst_element_set_state (group->uridecodebin, GST_STATE_NULL);
|
|
uridecodebin = group->uridecodebin;
|
|
} else {
|
|
GST_DEBUG_OBJECT (playbin, "making new uridecodebin");
|
|
uridecodebin = gst_element_factory_make ("uridecodebin", NULL);
|
|
if (!uridecodebin)
|
|
goto no_decodebin;
|
|
gst_bin_add (GST_BIN_CAST (playbin), uridecodebin);
|
|
group->uridecodebin = uridecodebin;
|
|
}
|
|
|
|
/* configure connection speed */
|
|
g_object_set (uridecodebin, "connection-speed", playbin->connection_speed,
|
|
NULL);
|
|
/* configure subtitle encoding */
|
|
g_object_set (uridecodebin, "subtitle-encoding", playbin->encoding, NULL);
|
|
/* configure uri */
|
|
g_object_set (uridecodebin, "uri", group->uri, NULL);
|
|
g_object_set (uridecodebin, "buffer-duration", playbin->buffer_duration,
|
|
NULL);
|
|
g_object_set (uridecodebin, "buffer-size", playbin->buffer_size, NULL);
|
|
|
|
/* connect pads and other things */
|
|
group->pad_added_id = g_signal_connect (uridecodebin, "pad-added",
|
|
G_CALLBACK (pad_added_cb), group);
|
|
group->pad_removed_id = g_signal_connect (uridecodebin, "pad-removed",
|
|
G_CALLBACK (pad_removed_cb), group);
|
|
group->no_more_pads_id = g_signal_connect (uridecodebin, "no-more-pads",
|
|
G_CALLBACK (no_more_pads_cb), group);
|
|
group->notify_source_id = g_signal_connect (uridecodebin, "notify::source",
|
|
G_CALLBACK (notify_source_cb), group);
|
|
/* we have 1 pending no-more-pads */
|
|
group->pending = 1;
|
|
|
|
/* is called when the uridecodebin is out of data and we can switch to the
|
|
* next uri */
|
|
group->drained_id =
|
|
g_signal_connect (uridecodebin, "drained", G_CALLBACK (drained_cb),
|
|
group);
|
|
|
|
/* will be called when a new media type is found. We return a list of decoders
|
|
* including sinks for decodebin to try */
|
|
group->autoplug_factories_id =
|
|
g_signal_connect (uridecodebin, "autoplug-factories",
|
|
G_CALLBACK (autoplug_factories_cb), group);
|
|
group->autoplug_select_id = g_signal_connect (uridecodebin, "autoplug-select",
|
|
G_CALLBACK (autoplug_select_cb), group);
|
|
|
|
if (group->suburi) {
|
|
/* subtitles */
|
|
if (group->suburidecodebin) {
|
|
GST_DEBUG_OBJECT (playbin, "reusing existing suburidecodebin");
|
|
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_added_id);
|
|
REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_removed_id);
|
|
REMOVE_SIGNAL (group->suburidecodebin, group->sub_no_more_pads_id);
|
|
gst_element_set_state (group->suburidecodebin, GST_STATE_NULL);
|
|
suburidecodebin = group->suburidecodebin;
|
|
} else {
|
|
GST_DEBUG_OBJECT (playbin, "making new suburidecodebin");
|
|
suburidecodebin = gst_element_factory_make ("uridecodebin", NULL);
|
|
if (!suburidecodebin)
|
|
goto no_decodebin;
|
|
|
|
gst_bin_add (GST_BIN_CAST (playbin), suburidecodebin);
|
|
group->suburidecodebin = suburidecodebin;
|
|
}
|
|
|
|
/* configure connection speed */
|
|
g_object_set (suburidecodebin, "connection-speed",
|
|
playbin->connection_speed, NULL);
|
|
/* configure subtitle encoding */
|
|
g_object_set (suburidecodebin, "subtitle-encoding", playbin->encoding,
|
|
NULL);
|
|
/* configure uri */
|
|
g_object_set (suburidecodebin, "uri", group->suburi, NULL);
|
|
|
|
/* connect pads and other things */
|
|
group->sub_pad_added_id = g_signal_connect (suburidecodebin, "pad-added",
|
|
G_CALLBACK (pad_added_cb), group);
|
|
group->sub_pad_removed_id = g_signal_connect (suburidecodebin,
|
|
"pad-removed", G_CALLBACK (pad_removed_cb), group);
|
|
group->sub_no_more_pads_id = g_signal_connect (suburidecodebin,
|
|
"no-more-pads", G_CALLBACK (no_more_pads_cb), group);
|
|
|
|
/* we have 2 pending no-more-pads */
|
|
group->pending = 2;
|
|
}
|
|
|
|
/* release the group lock before setting the state of the decodebins, they
|
|
* might fire signals in this thread that we need to handle with the
|
|
* group_lock taken. */
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
|
|
if (suburidecodebin) {
|
|
if (gst_element_set_state (suburidecodebin,
|
|
GST_STATE_PAUSED) == GST_STATE_CHANGE_FAILURE)
|
|
goto suburidecodebin_failure;
|
|
}
|
|
if (gst_element_set_state (uridecodebin,
|
|
GST_STATE_PAUSED) == GST_STATE_CHANGE_FAILURE)
|
|
goto uridecodebin_failure;
|
|
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
/* alow state changes of the playbin2 affect the group elements now */
|
|
group_set_locked_state_unlocked (playbin, group, FALSE);
|
|
group->active = TRUE;
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_decodebin:
|
|
{
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
return FALSE;
|
|
}
|
|
suburidecodebin_failure:
|
|
{
|
|
GST_DEBUG_OBJECT (playbin, "failed state change of subtitle uridecodebin");
|
|
return FALSE;
|
|
}
|
|
uridecodebin_failure:
|
|
{
|
|
GST_DEBUG_OBJECT (playbin, "failed state change of uridecodebin");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* unlink a group of uridecodebins from the sink.
|
|
* must be called with PLAY_BIN_LOCK */
|
|
static gboolean
|
|
deactivate_group (GstPlayBin * playbin, GstSourceGroup * group)
|
|
{
|
|
gint i;
|
|
|
|
g_return_val_if_fail (group->valid, FALSE);
|
|
g_return_val_if_fail (group->active, FALSE);
|
|
|
|
GST_DEBUG_OBJECT (playbin, "unlinking group %p", group);
|
|
|
|
GST_SOURCE_GROUP_LOCK (group);
|
|
group->active = FALSE;
|
|
for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
|
|
GstSourceSelect *select = &group->selector[i];
|
|
|
|
GST_DEBUG_OBJECT (playbin, "unlinking selector %s", select->media);
|
|
|
|
if (select->srcpad) {
|
|
if (select->sinkpad) {
|
|
GST_LOG_OBJECT (playbin, "unlinking from sink");
|
|
gst_pad_unlink (select->srcpad, select->sinkpad);
|
|
|
|
/* release back */
|
|
GST_LOG_OBJECT (playbin, "release sink pad");
|
|
gst_play_sink_release_pad (playbin->playsink, select->sinkpad);
|
|
select->sinkpad = NULL;
|
|
}
|
|
gst_object_unref (select->srcpad);
|
|
select->srcpad = NULL;
|
|
}
|
|
|
|
if (select->selector) {
|
|
gst_element_set_state (select->selector, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN_CAST (playbin), select->selector);
|
|
select->selector = NULL;
|
|
}
|
|
}
|
|
/* we still have the decodebins added to the playbin2 but we can't remove them
|
|
* yet or change their state because this function might be called from the
|
|
* streaming threads, instead block the state so that state changes on the
|
|
* playbin2 don't affect us anymore */
|
|
group_set_locked_state_unlocked (playbin, group, TRUE);
|
|
GST_SOURCE_GROUP_UNLOCK (group);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* setup the next group to play, this assumes the next_group is valid and
|
|
* configured. It swaps out the current_group and activates the valid
|
|
* next_group. */
|
|
static gboolean
|
|
setup_next_source (GstPlayBin * playbin)
|
|
{
|
|
GstSourceGroup *new_group, *old_group;
|
|
|
|
GST_DEBUG_OBJECT (playbin, "setup sources");
|
|
|
|
/* see if there is a next group */
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
new_group = playbin->next_group;
|
|
if (!new_group || !new_group->valid)
|
|
goto no_next_group;
|
|
|
|
/* first unlink the current source, if any */
|
|
old_group = playbin->curr_group;
|
|
if (old_group && old_group->valid) {
|
|
/* unlink our pads with the sink */
|
|
deactivate_group (playbin, old_group);
|
|
old_group->valid = FALSE;
|
|
}
|
|
|
|
/* activate the new group */
|
|
if (!activate_group (playbin, new_group))
|
|
goto activate_failed;
|
|
|
|
/* swap old and new */
|
|
playbin->curr_group = new_group;
|
|
playbin->next_group = old_group;
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_next_group:
|
|
{
|
|
GST_DEBUG_OBJECT (playbin, "no next group");
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
return FALSE;
|
|
}
|
|
activate_failed:
|
|
{
|
|
GST_DEBUG_OBJECT (playbin, "activate failed");
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* The group that is currently playing is copied again to the
|
|
* next_group so that it will start playing the next time.
|
|
*/
|
|
static gboolean
|
|
save_current_group (GstPlayBin * playbin)
|
|
{
|
|
GstSourceGroup *curr_group;
|
|
|
|
GST_DEBUG_OBJECT (playbin, "save current group");
|
|
|
|
/* see if there is a current group */
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
curr_group = playbin->curr_group;
|
|
if (curr_group && curr_group->valid) {
|
|
/* unlink our pads with the sink */
|
|
deactivate_group (playbin, curr_group);
|
|
}
|
|
/* swap old and new */
|
|
playbin->curr_group = playbin->next_group;
|
|
playbin->next_group = curr_group;
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* clear the locked state from all groups. This function is called before a
|
|
* state change to NULL is performed on them. */
|
|
static gboolean
|
|
groups_set_locked_state (GstPlayBin * playbin, gboolean locked)
|
|
{
|
|
GST_DEBUG_OBJECT (playbin, "setting locked state to %d on all groups",
|
|
locked);
|
|
|
|
GST_PLAY_BIN_LOCK (playbin);
|
|
GST_SOURCE_GROUP_LOCK (playbin->curr_group);
|
|
group_set_locked_state_unlocked (playbin, playbin->curr_group, locked);
|
|
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
|
|
GST_SOURCE_GROUP_LOCK (playbin->next_group);
|
|
group_set_locked_state_unlocked (playbin, playbin->next_group, locked);
|
|
GST_SOURCE_GROUP_UNLOCK (playbin->next_group);
|
|
GST_PLAY_BIN_UNLOCK (playbin);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_play_bin_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret;
|
|
GstPlayBin *playbin;
|
|
|
|
playbin = GST_PLAY_BIN (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
GST_LOG_OBJECT (playbin, "clearing shutdown flag");
|
|
g_atomic_int_set (&playbin->shutdown, 0);
|
|
if (!setup_next_source (playbin))
|
|
goto source_failed;
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
/* FIXME unlock our waiting groups */
|
|
GST_LOG_OBJECT (playbin, "setting shutdown flag");
|
|
g_atomic_int_set (&playbin->shutdown, 1);
|
|
|
|
/* wait for all callbacks to end by taking the lock.
|
|
* No dynamic (critical) new callbacks will
|
|
* be able to happen as we set the shutdown flag. */
|
|
GST_PLAY_BIN_DYN_LOCK (playbin);
|
|
GST_LOG_OBJECT (playbin, "dynamic lock taken, we can continue shutdown");
|
|
GST_PLAY_BIN_DYN_UNLOCK (playbin);
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
/* unlock so that all groups go to NULL */
|
|
groups_set_locked_state (playbin, FALSE);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
return ret;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
/* FIXME Release audio device when we implement that */
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
save_current_group (playbin);
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
/* make sure the groups don't perform a state change anymore until we
|
|
* enable them again */
|
|
groups_set_locked_state (playbin, TRUE);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
source_failed:
|
|
{
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
gst_play_bin2_plugin_init (GstPlugin * plugin)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (gst_play_bin_debug, "playbin2", 0, "play bin");
|
|
|
|
return gst_element_register (plugin, "playbin2", GST_RANK_NONE,
|
|
GST_TYPE_PLAY_BIN);
|
|
}
|