mirror of
https://github.com/godotengine/godot
synced 2024-09-05 09:08:28 +00:00
Updates VideoDecoder plugin API to GDExtension.
Adds VideoStream and relevant resource loaders to migrate external GDNative plugins to GDExtension. Adds a VideoStreamLoader as a specialization of ResourceFormatLoader as ClassDB::is_parent_class is inaccessible from GDExtension currently. Using Object* instead of Ref<T> in order to avoid the refcount bug (godotengine/godot-cpp#652) Also another bug is in ResourceLoader in use on the extension side that requires fixing.
This commit is contained in:
parent
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@ -8,4 +8,18 @@
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="_instantiate_playback" qualifiers="virtual">
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<return type="VideoStreamPlayback" />
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<description>
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Called when the video starts playing, to initialize and return a subclass of [VideoStreamPlayback].
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</description>
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</method>
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</methods>
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<members>
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<member name="file" type="String" setter="set_file" getter="get_file" default="""">
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The video file path or URI that this [VideoStream] resource handles.
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For [VideoStreamTheora], this filename should be an Ogg Theora video file with the [code].ogv[/code] extension.
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</member>
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</members>
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</class>
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104
doc/classes/VideoStreamPlayback.xml
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104
doc/classes/VideoStreamPlayback.xml
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@ -0,0 +1,104 @@
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<?xml version="1.0" encoding="UTF-8" ?>
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<class name="VideoStreamPlayback" inherits="Resource" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
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<brief_description>
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Internal class used by [VideoStream] to manage playback state when played from a [VideoStreamPlayer].
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</brief_description>
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<description>
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This class is intended to be overridden by video decoder extensions with custom implementations of [VideoStream].
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="_get_channels" qualifiers="virtual const">
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<return type="int" />
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<description>
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Returns the number of audio channels.
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</description>
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</method>
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<method name="_get_length" qualifiers="virtual const">
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<return type="float" />
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<description>
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Returns the video duration in seconds, if known, or 0 if unknown.
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</description>
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</method>
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<method name="_get_mix_rate" qualifiers="virtual const">
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<return type="int" />
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<description>
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Returns the audio sample rate used for mixing.
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</description>
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</method>
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<method name="_get_playback_position" qualifiers="virtual const">
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<return type="float" />
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<description>
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Return the current playback timestamp. Called in response to the [member VideoStreamPlayer.stream_position] getter.
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</description>
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</method>
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<method name="_get_texture" qualifiers="virtual const">
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<return type="Texture2D" />
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<description>
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Allocates a [Texture2D] in which decoded video frames will be drawn.
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</description>
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</method>
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<method name="_is_paused" qualifiers="virtual const">
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<return type="bool" />
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<description>
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Returns the paused status, as set by [method _set_paused].
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</description>
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</method>
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<method name="_is_playing" qualifiers="virtual const">
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<return type="bool" />
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<description>
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Returns the playback state, as determined by calls to [method _play] and [method _stop].
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</description>
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</method>
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<method name="_play" qualifiers="virtual">
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<return type="void" />
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<description>
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Called in response to [member VideoStreamPlayer.autoplay] or [method VideoStreamPlayer.play]. Note that manual playback may also invoke [method _stop] multiple times before this method is called. [method _is_playing] should return true once playing.
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</description>
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</method>
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<method name="_seek" qualifiers="virtual">
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<return type="void" />
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<param index="0" name="time" type="float" />
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<description>
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Seeks to [code]time[/code] seconds. Called in response to the [member VideoStreamPlayer.stream_position] setter.
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</description>
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</method>
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<method name="_set_audio_track" qualifiers="virtual">
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<return type="void" />
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<param index="0" name="idx" type="int" />
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<description>
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Select the audio track [code]idx[/code]. Called when playback starts, and in response to the [member VideoStreamPlayer.audio_track] setter.
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</description>
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</method>
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<method name="_set_paused" qualifiers="virtual">
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<return type="void" />
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<param index="0" name="paused" type="bool" />
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<description>
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Set the paused status of video playback. [method _is_paused] must return [code]paused[/code]. Called in response to the [member VideoStreamPlayer.paused] setter.
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</description>
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</method>
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<method name="_stop" qualifiers="virtual">
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<return type="void" />
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<description>
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Stops playback. May be called multiple times before [method _play], or in response to [method VideoStreamPlayer.stop]. [method _is_playing] should return false once stopped.
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</description>
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</method>
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<method name="_update" qualifiers="virtual">
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<return type="void" />
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<param index="0" name="delta" type="float" />
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<description>
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Ticks video playback for [code]delta[/code] seconds. Called every frame as long as [method _is_paused] and [method _is_playing] return true.
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</description>
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</method>
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<method name="mix_audio">
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<return type="int" />
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<param index="0" name="num_frames" type="int" />
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<param index="1" name="buffer" type="PackedFloat32Array" default="PackedFloat32Array()" />
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<param index="2" name="offset" type="int" default="0" />
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<description>
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Render [code]num_frames[/code] audio frames (of [method _get_channels] floats each) from [code]buffer[/code], starting from index [code]offset[/code] in the array. Returns the number of audio frames rendered, or -1 on error.
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</description>
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</method>
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</methods>
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</class>
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@ -9,19 +9,4 @@
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="get_file">
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<return type="String" />
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<description>
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Returns the Ogg Theora video file handled by this [VideoStreamTheora].
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</description>
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</method>
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<method name="set_file">
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<return type="void" />
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<param index="0" name="file" type="String" />
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<description>
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Sets the Ogg Theora video file that this [VideoStreamTheora] resource handles. The [code]file[/code] name should have the [code].ogv[/code] extension.
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</description>
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</method>
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</methods>
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</class>
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@ -574,25 +574,10 @@ bool VideoStreamPlaybackTheora::is_paused() const {
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return paused;
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}
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void VideoStreamPlaybackTheora::set_loop(bool p_enable) {
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}
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bool VideoStreamPlaybackTheora::has_loop() const {
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return false;
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}
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double VideoStreamPlaybackTheora::get_length() const {
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return 0;
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}
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String VideoStreamPlaybackTheora::get_stream_name() const {
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return "";
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}
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int VideoStreamPlaybackTheora::get_loop_count() const {
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return 0;
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}
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double VideoStreamPlaybackTheora::get_playback_position() const {
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return get_time();
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}
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WARN_PRINT_ONCE("Seeking in Theora videos is not implemented yet (it's only supported for GDExtension-provided video streams).");
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}
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void VideoStreamPlaybackTheora::set_mix_callback(AudioMixCallback p_callback, void *p_userdata) {
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mix_callback = p_callback;
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mix_udata = p_userdata;
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}
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int VideoStreamPlaybackTheora::get_channels() const {
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return vi.channels;
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}
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@ -657,16 +637,9 @@ VideoStreamPlaybackTheora::~VideoStreamPlaybackTheora() {
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memdelete(thread_sem);
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#endif
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clear();
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}
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};
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void VideoStreamTheora::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_file", "file"), &VideoStreamTheora::set_file);
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ClassDB::bind_method(D_METHOD("get_file"), &VideoStreamTheora::get_file);
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "file", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "set_file", "get_file");
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}
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////////////
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void VideoStreamTheora::_bind_methods() {}
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Ref<Resource> ResourceFormatLoaderTheora::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads, float *r_progress, CacheMode p_cache_mode) {
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Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ);
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@ -99,8 +99,6 @@ class VideoStreamPlaybackTheora : public VideoStreamPlayback {
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Ref<ImageTexture> texture;
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AudioMixCallback mix_callback = nullptr;
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void *mix_udata = nullptr;
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bool paused = false;
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#ifdef THEORA_USE_THREAD_STREAMING
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virtual void set_paused(bool p_paused) override;
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virtual bool is_paused() const override;
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virtual void set_loop(bool p_enable) override;
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virtual bool has_loop() const override;
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virtual double get_length() const override;
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virtual String get_stream_name() const;
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virtual int get_loop_count() const;
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virtual double get_playback_position() const override;
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virtual void seek(double p_time) override;
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virtual Ref<Texture2D> get_texture() const override;
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virtual void update(double p_delta) override;
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virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata) override;
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virtual int get_channels() const override;
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virtual int get_mix_rate() const override;
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class VideoStreamTheora : public VideoStream {
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GDCLASS(VideoStreamTheora, VideoStream);
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String file;
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int audio_track;
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protected:
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static void _bind_methods();
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return pb;
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}
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void set_file(const String &p_file) { file = p_file; }
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String get_file() { return file; }
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void set_audio_track(int p_track) override { audio_track = p_track; }
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VideoStreamTheora() { audio_track = 0; }
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@ -236,7 +236,6 @@ void VideoStreamPlayer::set_stream(const Ref<VideoStream> &p_stream) {
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AudioServer::get_singleton()->unlock();
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if (!playback.is_null()) {
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playback->set_loop(loops);
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playback->set_paused(paused);
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texture = playback->get_texture();
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void VideoStreamPlayer::set_audio_track(int p_track) {
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audio_track = p_track;
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if (stream.is_valid()) {
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stream->set_audio_track(audio_track);
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}
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if (playback.is_valid()) {
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playback->set_audio_track(audio_track);
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}
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}
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int VideoStreamPlayer::get_audio_track() const {
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@ -65,7 +65,6 @@ class VideoStreamPlayer : public Control {
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float volume = 1.0;
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double last_audio_time = 0.0;
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bool expand = false;
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bool loops = false;
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int buffering_ms = 500;
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int audio_track = 0;
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int bus_index = 0;
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@ -393,6 +393,8 @@ void register_scene_types() {
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GDREGISTER_CLASS(LineEdit);
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GDREGISTER_CLASS(VideoStreamPlayer);
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GDREGISTER_VIRTUAL_CLASS(VideoStreamPlayback);
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GDREGISTER_VIRTUAL_CLASS(VideoStream);
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#ifndef ADVANCED_GUI_DISABLED
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GDREGISTER_CLASS(FileDialog);
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#ifndef _3D_DISABLED
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GDREGISTER_CLASS(AudioStreamPlayer3D);
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#endif
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GDREGISTER_ABSTRACT_CLASS(VideoStream);
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GDREGISTER_CLASS(AudioStreamWAV);
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GDREGISTER_CLASS(AudioStreamPolyphonic);
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GDREGISTER_ABSTRACT_CLASS(AudioStreamPlaybackPolyphonic);
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198
scene/resources/video_stream.cpp
Normal file
198
scene/resources/video_stream.cpp
Normal file
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/**************************************************************************/
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/* video_stream.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "video_stream.h"
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#include "core/config/project_settings.h"
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#include "servers/audio_server.h"
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// VideoStreamPlayback starts here.
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void VideoStreamPlayback::_bind_methods() {
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ClassDB::bind_method(D_METHOD("mix_audio", "num_frames", "buffer", "offset"), &VideoStreamPlayback::mix_audio, DEFVAL(PackedFloat32Array()), DEFVAL(0));
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GDVIRTUAL_BIND(_stop);
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GDVIRTUAL_BIND(_play);
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GDVIRTUAL_BIND(_is_playing);
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GDVIRTUAL_BIND(_set_paused, "paused");
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GDVIRTUAL_BIND(_is_paused);
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GDVIRTUAL_BIND(_get_length);
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GDVIRTUAL_BIND(_get_playback_position);
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GDVIRTUAL_BIND(_seek, "time");
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GDVIRTUAL_BIND(_set_audio_track, "idx");
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GDVIRTUAL_BIND(_get_texture);
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GDVIRTUAL_BIND(_update, "delta");
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GDVIRTUAL_BIND(_get_channels);
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GDVIRTUAL_BIND(_get_mix_rate);
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}
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VideoStreamPlayback::VideoStreamPlayback() {
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}
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VideoStreamPlayback::~VideoStreamPlayback() {
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}
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void VideoStreamPlayback::stop() {
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GDVIRTUAL_CALL(_stop);
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}
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void VideoStreamPlayback::play() {
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GDVIRTUAL_CALL(_play);
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}
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bool VideoStreamPlayback::is_playing() const {
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bool ret;
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if (GDVIRTUAL_CALL(_is_playing, ret)) {
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return ret;
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}
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return false;
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}
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void VideoStreamPlayback::set_paused(bool p_paused) {
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GDVIRTUAL_CALL(_is_playing, p_paused);
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}
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bool VideoStreamPlayback::is_paused() const {
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bool ret;
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if (GDVIRTUAL_CALL(_is_paused, ret)) {
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return ret;
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}
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return false;
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}
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double VideoStreamPlayback::get_length() const {
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double ret;
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if (GDVIRTUAL_CALL(_get_length, ret)) {
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return ret;
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}
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return 0;
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}
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double VideoStreamPlayback::get_playback_position() const {
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double ret;
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if (GDVIRTUAL_CALL(_get_playback_position, ret)) {
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return ret;
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}
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return 0;
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}
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void VideoStreamPlayback::seek(double p_time) {
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GDVIRTUAL_CALL(_seek, p_time);
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}
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void VideoStreamPlayback::set_audio_track(int p_idx) {
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GDVIRTUAL_CALL(_set_audio_track, p_idx);
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}
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Ref<Texture2D> VideoStreamPlayback::get_texture() const {
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Ref<Texture2D> ret;
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if (GDVIRTUAL_CALL(_get_texture, ret)) {
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return ret;
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}
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return nullptr;
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}
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void VideoStreamPlayback::update(double p_delta) {
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if (!GDVIRTUAL_CALL(_update, p_delta)) {
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ERR_FAIL_MSG("VideoStreamPlayback::update unimplemented");
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}
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}
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void VideoStreamPlayback::set_mix_callback(AudioMixCallback p_callback, void *p_userdata) {
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mix_callback = p_callback;
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mix_udata = p_userdata;
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}
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int VideoStreamPlayback::get_channels() const {
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int ret;
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if (GDVIRTUAL_CALL(_get_channels, ret)) {
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_channel_count = ret;
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return ret;
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}
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return 0;
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}
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int VideoStreamPlayback::get_mix_rate() const {
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int ret;
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if (GDVIRTUAL_CALL(_get_mix_rate, ret)) {
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return ret;
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}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int VideoStreamPlayback::mix_audio(int num_frames, PackedFloat32Array buffer, int offset) {
|
||||
if (num_frames <= 0) {
|
||||
return 0;
|
||||
}
|
||||
if (!mix_callback) {
|
||||
return -1;
|
||||
}
|
||||
ERR_FAIL_INDEX_V(offset, buffer.size(), -1);
|
||||
ERR_FAIL_INDEX_V((_channel_count < 1 ? 1 : _channel_count) * num_frames - 1, buffer.size() - offset, -1);
|
||||
return mix_callback(mix_udata, buffer.ptr() + offset, num_frames);
|
||||
}
|
||||
|
||||
/* --- NOTE VideoStream starts here. ----- */
|
||||
|
||||
Ref<VideoStreamPlayback> VideoStream::instantiate_playback() {
|
||||
Ref<VideoStreamPlayback> ret;
|
||||
if (GDVIRTUAL_CALL(_instantiate_playback, ret)) {
|
||||
ERR_FAIL_COND_V_MSG(ret.is_null(), nullptr, "Plugin returned null playback");
|
||||
ret->set_audio_track(audio_track);
|
||||
return ret;
|
||||
}
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
void VideoStream::set_file(const String &p_file) {
|
||||
file = p_file;
|
||||
}
|
||||
|
||||
String VideoStream::get_file() {
|
||||
return file;
|
||||
}
|
||||
|
||||
void VideoStream::_bind_methods() {
|
||||
ClassDB::bind_method(D_METHOD("set_file", "file"), &VideoStream::set_file);
|
||||
ClassDB::bind_method(D_METHOD("get_file"), &VideoStream::get_file);
|
||||
|
||||
ADD_PROPERTY(PropertyInfo(Variant::STRING, "file"), "set_file", "get_file");
|
||||
|
||||
GDVIRTUAL_BIND(_instantiate_playback);
|
||||
}
|
||||
|
||||
VideoStream::VideoStream() {
|
||||
}
|
||||
|
||||
VideoStream::~VideoStream() {
|
||||
}
|
||||
|
||||
void VideoStream::set_audio_track(int p_track) {
|
||||
audio_track = p_track;
|
||||
}
|
|
@ -31,6 +31,7 @@
|
|||
#ifndef VIDEO_STREAM_H
|
||||
#define VIDEO_STREAM_H
|
||||
|
||||
#include "core/io/file_access.h"
|
||||
#include "scene/resources/texture.h"
|
||||
|
||||
class VideoStreamPlayback : public Resource {
|
||||
|
@ -39,40 +40,77 @@ class VideoStreamPlayback : public Resource {
|
|||
public:
|
||||
typedef int (*AudioMixCallback)(void *p_udata, const float *p_data, int p_frames);
|
||||
|
||||
virtual void stop() = 0;
|
||||
virtual void play() = 0;
|
||||
protected:
|
||||
AudioMixCallback mix_callback = nullptr;
|
||||
void *mix_udata = nullptr;
|
||||
mutable int _channel_count = 0; // Used only to assist with bounds checking in mix_audio.
|
||||
|
||||
virtual bool is_playing() const = 0;
|
||||
static void _bind_methods();
|
||||
GDVIRTUAL0(_stop);
|
||||
GDVIRTUAL0(_play);
|
||||
GDVIRTUAL0RC(bool, _is_playing);
|
||||
GDVIRTUAL1(_set_paused, bool);
|
||||
GDVIRTUAL0RC(bool, _is_paused);
|
||||
GDVIRTUAL0RC(double, _get_length);
|
||||
GDVIRTUAL0RC(double, _get_playback_position);
|
||||
GDVIRTUAL1(_seek, double);
|
||||
GDVIRTUAL1(_set_audio_track, int);
|
||||
GDVIRTUAL0RC(Ref<Texture2D>, _get_texture);
|
||||
GDVIRTUAL1(_update, double);
|
||||
GDVIRTUAL0RC(int, _get_channels);
|
||||
GDVIRTUAL0RC(int, _get_mix_rate);
|
||||
|
||||
virtual void set_paused(bool p_paused) = 0;
|
||||
virtual bool is_paused() const = 0;
|
||||
int mix_audio(int num_frames, PackedFloat32Array buffer = {}, int offset = 0);
|
||||
|
||||
virtual void set_loop(bool p_enable) = 0;
|
||||
virtual bool has_loop() const = 0;
|
||||
public:
|
||||
VideoStreamPlayback();
|
||||
virtual ~VideoStreamPlayback();
|
||||
|
||||
virtual double get_length() const = 0;
|
||||
virtual void stop();
|
||||
virtual void play();
|
||||
|
||||
virtual double get_playback_position() const = 0;
|
||||
virtual void seek(double p_time) = 0;
|
||||
virtual bool is_playing() const;
|
||||
|
||||
virtual void set_audio_track(int p_idx) = 0;
|
||||
virtual void set_paused(bool p_paused);
|
||||
virtual bool is_paused() const;
|
||||
|
||||
virtual Ref<Texture2D> get_texture() const = 0;
|
||||
virtual double get_length() const;
|
||||
|
||||
virtual void update(double p_delta) = 0;
|
||||
virtual double get_playback_position() const;
|
||||
virtual void seek(double p_time);
|
||||
|
||||
virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata) = 0;
|
||||
virtual int get_channels() const = 0;
|
||||
virtual int get_mix_rate() const = 0;
|
||||
virtual void set_audio_track(int p_idx);
|
||||
|
||||
virtual Ref<Texture2D> get_texture() const;
|
||||
virtual void update(double p_delta);
|
||||
|
||||
virtual void set_mix_callback(AudioMixCallback p_callback, void *p_userdata);
|
||||
virtual int get_channels() const;
|
||||
virtual int get_mix_rate() const;
|
||||
};
|
||||
|
||||
class VideoStream : public Resource {
|
||||
GDCLASS(VideoStream, Resource);
|
||||
OBJ_SAVE_TYPE(VideoStream); // Saves derived classes with common type so they can be interchanged.
|
||||
OBJ_SAVE_TYPE(VideoStream);
|
||||
|
||||
protected:
|
||||
static void
|
||||
_bind_methods();
|
||||
|
||||
GDVIRTUAL0R(Ref<VideoStreamPlayback>, _instantiate_playback);
|
||||
|
||||
String file;
|
||||
int audio_track = 0;
|
||||
|
||||
public:
|
||||
virtual void set_audio_track(int p_track) = 0;
|
||||
virtual Ref<VideoStreamPlayback> instantiate_playback() = 0;
|
||||
void set_file(const String &p_file);
|
||||
String get_file();
|
||||
|
||||
virtual void set_audio_track(int p_track);
|
||||
virtual Ref<VideoStreamPlayback> instantiate_playback();
|
||||
|
||||
VideoStream();
|
||||
~VideoStream();
|
||||
};
|
||||
|
||||
#endif // VIDEO_STREAM_H
|
||||
|
|
Loading…
Reference in a new issue