gstapp-1.0.d.ts

/// <reference path="./gstbase-1.0.d.ts" />
/// <reference path="./gst-1.0.d.ts" />
/// <reference path="./gobject-2.0.d.ts" />
/// <reference path="./glib-2.0.d.ts" />
/// <reference path="./gmodule-2.0.d.ts" />

/**
 * Type Definitions for Gjs (https://gjs.guide/)
 *
 * These type definitions are automatically generated, do not edit them by hand.
 * If you found a bug fix it in `ts-for-gir` or create a bug report on https://github.com/gjsify/ts-for-gir
 *
 * The based EJS template file is used for the generated .d.ts file of each GIR module like Gtk-4.0, GObject-2.0, ...
 */

declare module 'gi://GstApp?version=1.0' {
    // Module dependencies
    import type GstBase from 'gi://GstBase?version=1.0';
    import type Gst from 'gi://Gst?version=1.0';
    import type GObject from 'gi://GObject?version=2.0';
    import type GLib from 'gi://GLib?version=2.0';
    import type GModule from 'gi://GModule?version=2.0';

    export namespace GstApp {
        /**
         * GstApp-1.0
         */

        export namespace AppLeakyType {
            export const $gtype: GObject.GType<AppLeakyType>;
        }

        /**
         * Buffer dropping scheme to avoid the element's internal queue to block when
         * full.
         */
        enum AppLeakyType {
            /**
             * Not Leaky
             */
            NONE,
            /**
             * Leaky on upstream (new buffers)
             */
            UPSTREAM,
            /**
             * Leaky on downstream (old buffers)
             */
            DOWNSTREAM,
        }

        export namespace AppStreamType {
            export const $gtype: GObject.GType<AppStreamType>;
        }

        /**
         * The stream type.
         */
        enum AppStreamType {
            /**
             * No seeking is supported in the stream, such as a
             * live stream.
             */
            STREAM,
            /**
             * The stream is seekable but seeking might not
             * be very fast, such as data from a webserver.
             */
            SEEKABLE,
            /**
             * The stream is seekable and seeking is fast,
             * such as in a local file.
             */
            RANDOM_ACCESS,
        }

        namespace AppSink {
            // Signal signatures
            interface SignalSignatures extends GstBase.BaseSink.SignalSignatures {
                eos: () => void;
                'new-preroll': () => Gst.FlowReturn;
                'new-sample': () => Gst.FlowReturn;
                'new-serialized-event': () => boolean | void;
                'propose-allocation': (arg0: Gst.Query) => boolean | void;
                'pull-preroll': () => Gst.Sample | null;
                'pull-sample': () => Gst.Sample | null;
                'try-pull-object': (arg0: number) => Gst.MiniObject | null;
                'try-pull-preroll': (arg0: number) => Gst.Sample | null;
                'try-pull-sample': (arg0: number) => Gst.Sample | null;
                'notify::buffer-list': (pspec: GObject.ParamSpec) => void;
                'notify::caps': (pspec: GObject.ParamSpec) => void;
                'notify::drop': (pspec: GObject.ParamSpec) => void;
                'notify::emit-signals': (pspec: GObject.ParamSpec) => void;
                'notify::eos': (pspec: GObject.ParamSpec) => void;
                'notify::max-buffers': (pspec: GObject.ParamSpec) => void;
                'notify::max-bytes': (pspec: GObject.ParamSpec) => void;
                'notify::max-time': (pspec: GObject.ParamSpec) => void;
                'notify::wait-on-eos': (pspec: GObject.ParamSpec) => void;
                'notify::async': (pspec: GObject.ParamSpec) => void;
                'notify::blocksize': (pspec: GObject.ParamSpec) => void;
                'notify::enable-last-sample': (pspec: GObject.ParamSpec) => void;
                'notify::last-sample': (pspec: GObject.ParamSpec) => void;
                'notify::max-bitrate': (pspec: GObject.ParamSpec) => void;
                'notify::max-lateness': (pspec: GObject.ParamSpec) => void;
                'notify::processing-deadline': (pspec: GObject.ParamSpec) => void;
                'notify::qos': (pspec: GObject.ParamSpec) => void;
                'notify::render-delay': (pspec: GObject.ParamSpec) => void;
                'notify::stats': (pspec: GObject.ParamSpec) => void;
                'notify::sync': (pspec: GObject.ParamSpec) => void;
                'notify::throttle-time': (pspec: GObject.ParamSpec) => void;
                'notify::ts-offset': (pspec: GObject.ParamSpec) => void;
                'notify::name': (pspec: GObject.ParamSpec) => void;
                'notify::parent': (pspec: GObject.ParamSpec) => void;
            }

            // Constructor properties interface

            interface ConstructorProps extends GstBase.BaseSink.ConstructorProps, Gst.URIHandler.ConstructorProps {
                buffer_list: boolean;
                bufferList: boolean;
                caps: Gst.Caps;
                drop: boolean;
                emit_signals: boolean;
                emitSignals: boolean;
                eos: boolean | any;
                max_buffers: number;
                maxBuffers: number;
                max_bytes: number;
                maxBytes: number;
                max_time: number;
                maxTime: number;
                wait_on_eos: boolean;
                waitOnEos: boolean;
            }
        }

        /**
         * Appsink is a sink plugin that supports many different methods for making
         * the application get a handle on the GStreamer data in a pipeline. Unlike
         * most GStreamer elements, Appsink provides external API functions.
         *
         * appsink can be used by linking to the gstappsink.h header file to access the
         * methods or by using the appsink action signals and properties.
         *
         * The normal way of retrieving samples from appsink is by using the
         * gst_app_sink_pull_sample() and gst_app_sink_pull_preroll() methods.
         * These methods block until a sample becomes available in the sink or when the
         * sink is shut down or reaches EOS. There are also timed variants of these
         * methods, gst_app_sink_try_pull_sample() and gst_app_sink_try_pull_preroll(),
         * which accept a timeout parameter to limit the amount of time to wait.
         *
         * Appsink will internally use a queue to collect buffers from the streaming
         * thread. If the application is not pulling samples fast enough, this queue
         * will consume a lot of memory over time. The "max-buffers", "max-time" and "max-bytes"
         * properties can be used to limit the queue size. The "drop" property controls whether the
         * streaming thread blocks or if older buffers are dropped when the maximum
         * queue size is reached. Note that blocking the streaming thread can negatively
         * affect real-time performance and should be avoided.
         *
         * If a blocking behaviour is not desirable, setting the "emit-signals" property
         * to %TRUE will make appsink emit the "new-sample" and "new-preroll" signals
         * when a sample can be pulled without blocking.
         *
         * The "caps" property on appsink can be used to control the formats that
         * appsink can receive. This property can contain non-fixed caps, the format of
         * the pulled samples can be obtained by getting the sample caps.
         *
         * If one of the pull-preroll or pull-sample methods return %NULL, the appsink
         * is stopped or in the EOS state. You can check for the EOS state with the
         * "eos" property or with the gst_app_sink_is_eos() method.
         *
         * The eos signal can also be used to be informed when the EOS state is reached
         * to avoid polling.
         */
        class AppSink extends GstBase.BaseSink implements Gst.URIHandler {
            static $gtype: GObject.GType<AppSink>;

            // Properties

            get buffer_list(): boolean;
            set buffer_list(val: boolean);
            get bufferList(): boolean;
            set bufferList(val: boolean);
            get caps(): Gst.Caps;
            set caps(val: Gst.Caps);
            get drop(): boolean;
            set drop(val: boolean);
            get emit_signals(): boolean;
            set emit_signals(val: boolean);
            get emitSignals(): boolean;
            set emitSignals(val: boolean);
            // This accessor conflicts with a property or field in a parent class or interface.
            eos: boolean | any;
            /**
             * Maximum amount of buffers in the queue (0 = unlimited).
             */
            get max_buffers(): number;
            set max_buffers(val: number);
            /**
             * Maximum amount of buffers in the queue (0 = unlimited).
             */
            get maxBuffers(): number;
            set maxBuffers(val: number);
            /**
             * Maximum amount of bytes in the queue (0 = unlimited)
             */
            get max_bytes(): number;
            set max_bytes(val: number);
            /**
             * Maximum amount of bytes in the queue (0 = unlimited)
             */
            get maxBytes(): number;
            set maxBytes(val: number);
            /**
             * Maximum total duration of data in the queue (0 = unlimited)
             */
            get max_time(): number;
            set max_time(val: number);
            /**
             * Maximum total duration of data in the queue (0 = unlimited)
             */
            get maxTime(): number;
            set maxTime(val: number);
            /**
             * Wait for all buffers to be processed after receiving an EOS.
             *
             * In cases where it is uncertain if an `appsink` will have a consumer for its buffers
             * when it receives an EOS, set to %FALSE to ensure that the `appsink` will not hang.
             */
            get wait_on_eos(): boolean;
            set wait_on_eos(val: boolean);
            /**
             * Wait for all buffers to be processed after receiving an EOS.
             *
             * In cases where it is uncertain if an `appsink` will have a consumer for its buffers
             * when it receives an EOS, set to %FALSE to ensure that the `appsink` will not hang.
             */
            get waitOnEos(): boolean;
            set waitOnEos(val: boolean);

            /**
             * Compile-time signal type information.
             *
             * This instance property is generated only for TypeScript type checking.
             * It is not defined at runtime and should not be accessed in JS code.
             * @internal
             */
            $signals: AppSink.SignalSignatures;

            // Fields

            basesink: GstBase.BaseSink;

            // Constructors

            constructor(properties?: Partial<AppSink.ConstructorProps>, ...args: any[]);

            _init(...args: any[]): void;

            // Signals

            connect<K extends keyof AppSink.SignalSignatures>(
                signal: K,
                callback: GObject.SignalCallback<this, AppSink.SignalSignatures[K]>,
            ): number;
            connect(signal: string, callback: (...args: any[]) => any): number;
            connect_after<K extends keyof AppSink.SignalSignatures>(
                signal: K,
                callback: GObject.SignalCallback<this, AppSink.SignalSignatures[K]>,
            ): number;
            connect_after(signal: string, callback: (...args: any[]) => any): number;
            emit<K extends keyof AppSink.SignalSignatures>(
                signal: K,
                ...args: GObject.GjsParameters<AppSink.SignalSignatures[K]> extends [any, ...infer Q] ? Q : never
            ): void;
            emit(signal: string, ...args: any[]): void;

            // Virtual methods

            vfunc_eos(): void;
            vfunc_new_preroll(): Gst.FlowReturn;
            vfunc_new_sample(): Gst.FlowReturn;
            /**
             * Get the last preroll sample in `appsink`. This was the sample that caused the
             * appsink to preroll in the PAUSED state.
             *
             * This function is typically used when dealing with a pipeline in the PAUSED
             * state. Calling this function after doing a seek will give the sample right
             * after the seek position.
             *
             * Calling this function will clear the internal reference to the preroll
             * buffer.
             *
             * Note that the preroll sample will also be returned as the first sample
             * when calling gst_app_sink_pull_sample().
             *
             * If an EOS event was received before any buffers, this function returns
             * %NULL. Use gst_app_sink_is_eos () to check for the EOS condition.
             *
             * This function blocks until a preroll sample or EOS is received or the appsink
             * element is set to the READY/NULL state.
             */
            vfunc_pull_preroll(): Gst.Sample | null;
            /**
             * This function blocks until a sample or EOS becomes available or the appsink
             * element is set to the READY/NULL state.
             *
             * This function will only return samples when the appsink is in the PLAYING
             * state. All rendered buffers will be put in a queue so that the application
             * can pull samples at its own rate. Note that when the application does not
             * pull samples fast enough, the queued buffers could consume a lot of memory,
             * especially when dealing with raw video frames.
             *
             * If an EOS event was received before any buffers, this function returns
             * %NULL. Use gst_app_sink_is_eos () to check for the EOS condition.
             */
            vfunc_pull_sample(): Gst.Sample | null;
            /**
             * This function blocks until a sample or an event or EOS becomes available or the appsink
             * element is set to the READY/NULL state or the timeout expires.
             *
             * This function will only return samples when the appsink is in the PLAYING
             * state. All rendered buffers and events will be put in a queue so that the application
             * can pull them at its own rate. Note that when the application does not
             * pull samples fast enough, the queued buffers could consume a lot of memory,
             * especially when dealing with raw video frames.
             * Events can be pulled when the appsink is in the READY, PAUSED or PLAYING state.
             *
             * This function will only pull serialized events, excluding
             * the EOS event for which this functions returns
             * %NULL. Use gst_app_sink_is_eos() to check for the EOS condition.
             *
             * This method is a variant of gst_app_sink_try_pull_sample() that can be used
             * to handle incoming events events as well as samples.
             *
             * Note that future releases may extend this API to return other object types
             * so make sure that your code is checking for the actual type it is handling.
             * @param timeout the maximum amount of time to wait for a sample
             */
            vfunc_try_pull_object(timeout: Gst.ClockTime): Gst.MiniObject | null;
            /**
             * Get the last preroll sample in `appsink`. This was the sample that caused the
             * appsink to preroll in the PAUSED state.
             *
             * This function is typically used when dealing with a pipeline in the PAUSED
             * state. Calling this function after doing a seek will give the sample right
             * after the seek position.
             *
             * Calling this function will clear the internal reference to the preroll
             * buffer.
             *
             * Note that the preroll sample will also be returned as the first sample
             * when calling gst_app_sink_pull_sample().
             *
             * If an EOS event was received before any buffers or the timeout expires,
             * this function returns %NULL. Use gst_app_sink_is_eos () to check for the EOS
             * condition.
             *
             * This function blocks until a preroll sample or EOS is received, the appsink
             * element is set to the READY/NULL state, or the timeout expires.
             * @param timeout the maximum amount of time to wait for the preroll sample
             */
            vfunc_try_pull_preroll(timeout: Gst.ClockTime): Gst.Sample | null;
            /**
             * This function blocks until a sample or EOS becomes available or the appsink
             * element is set to the READY/NULL state or the timeout expires.
             *
             * This function will only return samples when the appsink is in the PLAYING
             * state. All rendered buffers will be put in a queue so that the application
             * can pull samples at its own rate. Note that when the application does not
             * pull samples fast enough, the queued buffers could consume a lot of memory,
             * especially when dealing with raw video frames.
             *
             * If an EOS event was received before any buffers or the timeout expires,
             * this function returns %NULL. Use gst_app_sink_is_eos () to check for the EOS
             * condition.
             * @param timeout the maximum amount of time to wait for a sample
             */
            vfunc_try_pull_sample(timeout: Gst.ClockTime): Gst.Sample | null;

            // Methods

            /**
             * Check if `appsink` supports buffer lists.
             * @returns %TRUE if @appsink supports buffer lists.
             */
            get_buffer_list_support(): boolean;
            /**
             * Get the configured caps on `appsink`.
             * @returns the #GstCaps accepted by the sink. gst_caps_unref() after usage.
             */
            get_caps(): Gst.Caps | null;
            /**
             * Check if `appsink` will drop old buffers when the maximum amount of queued
             * data is reached (meaning max buffers, time or bytes limit, whichever is hit first).
             * @returns %TRUE if @appsink is dropping old buffers when the queue is filled.
             */
            get_drop(): boolean;
            /**
             * Check if appsink will emit the "new-preroll" and "new-sample" signals.
             * @returns %TRUE if @appsink is emitting the "new-preroll" and "new-sample" signals.
             */
            get_emit_signals(): boolean;
            /**
             * Get the maximum amount of buffers that can be queued in `appsink`.
             * @returns The maximum amount of buffers that can be queued.
             */
            get_max_buffers(): number;
            /**
             * Get the maximum total size, in bytes, that can be queued in `appsink`.
             * @returns The maximum amount of bytes that can be queued
             */
            get_max_bytes(): number;
            /**
             * Get the maximum total duration that can be queued in `appsink`.
             * @returns The maximum total duration that can be queued.
             */
            get_max_time(): Gst.ClockTime;
            /**
             * Check if `appsink` will wait for all buffers to be consumed when an EOS is
             * received.
             * @returns %TRUE if @appsink will wait for all buffers to be consumed when an EOS is received.
             */
            get_wait_on_eos(): boolean;
            /**
             * Check if `appsink` is EOS, which is when no more samples can be pulled because
             * an EOS event was received.
             *
             * This function also returns %TRUE when the appsink is not in the PAUSED or
             * PLAYING state.
             * @returns %TRUE if no more samples can be pulled and the appsink is EOS.
             */
            is_eos(): boolean;
            /**
             * This function blocks until a sample or an event becomes available or the appsink
             * element is set to the READY/NULL state.
             *
             * This function will only return samples when the appsink is in the PLAYING
             * state. All rendered buffers and events will be put in a queue so that the application
             * can pull them at its own rate. Note that when the application does not
             * pull samples fast enough, the queued buffers could consume a lot of memory,
             * especially when dealing with raw video frames.
             * Events can be pulled when the appsink is in the READY, PAUSED or PLAYING state.
             *
             * This function will only pull serialized events, excluding
             * the EOS event for which this functions returns
             * %NULL. Use gst_app_sink_is_eos() to check for the EOS condition.
             *
             * This method is a variant of gst_app_sink_pull_sample() that can be used
             * to handle incoming events events as well as samples.
             *
             * Note that future releases may extend this API to return other object types
             * so make sure that your code is checking for the actual type it is handling.
             * @returns a #GstSample, or a #GstEvent or NULL when the appsink is stopped or EOS.          Call gst_mini_object_unref() after usage.
             */
            pull_object(): Gst.MiniObject | null;
            /**
             * Get the last preroll sample in `appsink`. This was the sample that caused the
             * appsink to preroll in the PAUSED state.
             *
             * This function is typically used when dealing with a pipeline in the PAUSED
             * state. Calling this function after doing a seek will give the sample right
             * after the seek position.
             *
             * Calling this function will clear the internal reference to the preroll
             * buffer.
             *
             * Note that the preroll sample will also be returned as the first sample
             * when calling gst_app_sink_pull_sample().
             *
             * If an EOS event was received before any buffers, this function returns
             * %NULL. Use gst_app_sink_is_eos () to check for the EOS condition.
             *
             * This function blocks until a preroll sample or EOS is received or the appsink
             * element is set to the READY/NULL state.
             * @returns a #GstSample or NULL when the appsink is stopped or EOS.          Call gst_sample_unref() after usage.
             */
            pull_preroll(): Gst.Sample | null;
            /**
             * This function blocks until a sample or EOS becomes available or the appsink
             * element is set to the READY/NULL state.
             *
             * This function will only return samples when the appsink is in the PLAYING
             * state. All rendered buffers will be put in a queue so that the application
             * can pull samples at its own rate. Note that when the application does not
             * pull samples fast enough, the queued buffers could consume a lot of memory,
             * especially when dealing with raw video frames.
             *
             * If an EOS event was received before any buffers, this function returns
             * %NULL. Use gst_app_sink_is_eos () to check for the EOS condition.
             * @returns a #GstSample or NULL when the appsink is stopped or EOS.          Call gst_sample_unref() after usage.
             */
            pull_sample(): Gst.Sample | null;
            /**
             * Instruct `appsink` to enable or disable buffer list support.
             *
             * For backwards-compatibility reasons applications need to opt in
             * to indicate that they will be able to handle buffer lists.
             * @param enable_lists enable or disable buffer list support
             */
            set_buffer_list_support(enable_lists: boolean): void;
            /**
             * Set the capabilities on the appsink element.  This function takes
             * a copy of the caps structure. After calling this method, the sink will only
             * accept caps that match `caps`. If `caps` is non-fixed, or incomplete,
             * you must check the caps on the samples to get the actual used caps.
             * @param caps caps to set
             */
            set_caps(caps?: Gst.Caps | null): void;
            /**
             * Instruct `appsink` to drop old buffers when the maximum amount of queued
             * data is reached, that is, when any configured limit is hit (max-buffers, max-time or max-bytes).
             * @param drop the new state
             */
            set_drop(drop: boolean): void;
            /**
             * Make appsink emit the "new-preroll" and "new-sample" signals. This option is
             * by default disabled because signal emission is expensive and unneeded when
             * the application prefers to operate in pull mode.
             * @param emit the new state
             */
            set_emit_signals(emit: boolean): void;
            /**
             * Set the maximum amount of buffers that can be queued in `appsink`. After this
             * amount of buffers are queued in appsink, any more buffers will block upstream
             * elements until a sample is pulled from `appsink,` unless 'drop' is set, in which
             * case new buffers will be discarded.
             * @param max the maximum number of buffers to queue
             */
            set_max_buffers(max: number): void;
            /**
             * Set the maximum total size that can be queued in `appsink`. After this
             * amount of buffers are queued in appsink, any more buffers will block upstream
             * elements until a sample is pulled from `appsink,` unless 'drop' is set, in which
             * case new buffers will be discarded.
             * @param max the maximum total size of buffers to queue, in bytes
             */
            set_max_bytes(max: number): void;
            /**
             * Set the maximum total duration that can be queued in `appsink`. After this
             * amount of buffers are queued in appsink, any more buffers will block upstream
             * elements until a sample is pulled from `appsink,` unless 'drop' is set, in which
             * case new buffers will be discarded.
             * @param max the maximum total duration to queue
             */
            set_max_time(max: Gst.ClockTime): void;
            /**
             * Instruct `appsink` to wait for all buffers to be consumed when an EOS is received.
             * @param wait the new state
             */
            set_wait_on_eos(wait: boolean): void;
            /**
             * This function blocks until a sample or an event or EOS becomes available or the appsink
             * element is set to the READY/NULL state or the timeout expires.
             *
             * This function will only return samples when the appsink is in the PLAYING
             * state. All rendered buffers and events will be put in a queue so that the application
             * can pull them at its own rate. Note that when the application does not
             * pull samples fast enough, the queued buffers could consume a lot of memory,
             * especially when dealing with raw video frames.
             * Events can be pulled when the appsink is in the READY, PAUSED or PLAYING state.
             *
             * This function will only pull serialized events, excluding
             * the EOS event for which this functions returns
             * %NULL. Use gst_app_sink_is_eos() to check for the EOS condition.
             *
             * This method is a variant of gst_app_sink_try_pull_sample() that can be used
             * to handle incoming events events as well as samples.
             *
             * Note that future releases may extend this API to return other object types
             * so make sure that your code is checking for the actual type it is handling.
             * @param timeout the maximum amount of time to wait for a sample
             * @returns a #GstSample, or #GstEvent or NULL when the appsink is stopped or EOS or the timeout expires. Call gst_mini_object_unref() after usage.
             */
            try_pull_object(timeout: Gst.ClockTime): Gst.MiniObject | null;
            /**
             * Get the last preroll sample in `appsink`. This was the sample that caused the
             * appsink to preroll in the PAUSED state.
             *
             * This function is typically used when dealing with a pipeline in the PAUSED
             * state. Calling this function after doing a seek will give the sample right
             * after the seek position.
             *
             * Calling this function will clear the internal reference to the preroll
             * buffer.
             *
             * Note that the preroll sample will also be returned as the first sample
             * when calling gst_app_sink_pull_sample().
             *
             * If an EOS event was received before any buffers or the timeout expires,
             * this function returns %NULL. Use gst_app_sink_is_eos () to check for the EOS
             * condition.
             *
             * This function blocks until a preroll sample or EOS is received, the appsink
             * element is set to the READY/NULL state, or the timeout expires.
             * @param timeout the maximum amount of time to wait for the preroll sample
             * @returns a #GstSample or NULL when the appsink is stopped or EOS or the timeout expires.          Call gst_sample_unref() after usage.
             */
            try_pull_preroll(timeout: Gst.ClockTime): Gst.Sample | null;
            /**
             * This function blocks until a sample or EOS becomes available or the appsink
             * element is set to the READY/NULL state or the timeout expires.
             *
             * This function will only return samples when the appsink is in the PLAYING
             * state. All rendered buffers will be put in a queue so that the application
             * can pull samples at its own rate. Note that when the application does not
             * pull samples fast enough, the queued buffers could consume a lot of memory,
             * especially when dealing with raw video frames.
             *
             * If an EOS event was received before any buffers or the timeout expires,
             * this function returns %NULL. Use gst_app_sink_is_eos () to check for the EOS
             * condition.
             * @param timeout the maximum amount of time to wait for a sample
             * @returns a #GstSample or NULL when the appsink is stopped or EOS or the timeout expires.          Call gst_sample_unref() after usage.
             */
            try_pull_sample(timeout: Gst.ClockTime): Gst.Sample | null;

            // Inherited methods
            /**
             * Gets the list of protocols supported by `handler`. This list may not be
             * modified.
             * @returns the     supported protocols.  Returns %NULL if the @handler isn't     implemented properly, or the @handler doesn't support any     protocols.
             */
            get_protocols(): string[] | null;
            /**
             * Gets the currently handled URI.
             * @returns the URI currently handled by   the @handler.  Returns %NULL if there are no URI currently   handled. The returned string must be freed with g_free() when no   longer needed.
             */
            get_uri(): string | null;
            /**
             * Gets the type of the given URI handler
             * @returns the #GstURIType of the URI handler. Returns #GST_URI_UNKNOWN if the @handler isn't implemented correctly.
             */
            get_uri_type(): Gst.URIType;
            /**
             * Tries to set the URI of the given handler.
             * @param uri URI to set
             * @returns %TRUE if the URI was set successfully, else %FALSE.
             */
            set_uri(uri: string): boolean;
            /**
             * Gets the currently handled URI.
             */
            vfunc_get_uri(): string | null;
            /**
             * Tries to set the URI of the given handler.
             * @param uri URI to set
             */
            vfunc_set_uri(uri: string): boolean;
            /**
             * Creates a binding between `source_property` on `source` and `target_property`
             * on `target`.
             *
             * Whenever the `source_property` is changed the `target_property` is
             * updated using the same value. For instance:
             *
             *
             * ```c
             *   g_object_bind_property (action, "active", widget, "sensitive", 0);
             * ```
             *
             *
             * Will result in the "sensitive" property of the widget #GObject instance to be
             * updated with the same value of the "active" property of the action #GObject
             * instance.
             *
             * If `flags` contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual:
             * if `target_property` on `target` changes then the `source_property` on `source`
             * will be updated as well.
             *
             * The binding will automatically be removed when either the `source` or the
             * `target` instances are finalized. To remove the binding without affecting the
             * `source` and the `target` you can just call g_object_unref() on the returned
             * #GBinding instance.
             *
             * Removing the binding by calling g_object_unref() on it must only be done if
             * the binding, `source` and `target` are only used from a single thread and it
             * is clear that both `source` and `target` outlive the binding. Especially it
             * is not safe to rely on this if the binding, `source` or `target` can be
             * finalized from different threads. Keep another reference to the binding and
             * use g_binding_unbind() instead to be on the safe side.
             *
             * A #GObject can have multiple bindings.
             * @param source_property the property on @source to bind
             * @param target the target #GObject
             * @param target_property the property on @target to bind
             * @param flags flags to pass to #GBinding
             * @returns the #GBinding instance representing the     binding between the two #GObject instances. The binding is released     whenever the #GBinding reference count reaches zero.
             */
            bind_property(
                source_property: string,
                target: GObject.Object,
                target_property: string,
                flags: GObject.BindingFlags | null,
            ): GObject.Binding;
            /**
             * Complete version of g_object_bind_property().
             *
             * Creates a binding between `source_property` on `source` and `target_property`
             * on `target,` allowing you to set the transformation functions to be used by
             * the binding.
             *
             * If `flags` contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual:
             * if `target_property` on `target` changes then the `source_property` on `source`
             * will be updated as well. The `transform_from` function is only used in case
             * of bidirectional bindings, otherwise it will be ignored
             *
             * The binding will automatically be removed when either the `source` or the
             * `target` instances are finalized. This will release the reference that is
             * being held on the #GBinding instance; if you want to hold on to the
             * #GBinding instance, you will need to hold a reference to it.
             *
             * To remove the binding, call g_binding_unbind().
             *
             * A #GObject can have multiple bindings.
             *
             * The same `user_data` parameter will be used for both `transform_to`
             * and `transform_from` transformation functions; the `notify` function will
             * be called once, when the binding is removed. If you need different data
             * for each transformation function, please use
             * g_object_bind_property_with_closures() instead.
             * @param source_property the property on @source to bind
             * @param target the target #GObject
             * @param target_property the property on @target to bind
             * @param flags flags to pass to #GBinding
             * @param transform_to the transformation function     from the @source to the @target, or %NULL to use the default
             * @param transform_from the transformation function     from the @target to the @source, or %NULL to use the default
             * @param notify a function to call when disposing the binding, to free     resources used by the transformation functions, or %NULL if not required
             * @returns the #GBinding instance representing the     binding between the two #GObject instances. The binding is released     whenever the #GBinding reference count reaches zero.
             */
            bind_property_full(
                source_property: string,
                target: GObject.Object,
                target_property: string,
                flags: GObject.BindingFlags | null,
                transform_to?: GObject.BindingTransformFunc | null,
                transform_from?: GObject.BindingTransformFunc | null,
                notify?: GLib.DestroyNotify | null,
            ): GObject.Binding;
            // Conflicted with GObject.Object.bind_property_full
            bind_property_full(...args: never[]): any;
            /**
             * This function is intended for #GObject implementations to re-enforce
             * a [floating](floating-refs.html) object reference. Doing this is seldom
             * required: all #GInitiallyUnowneds are created with a floating reference
             * which usually just needs to be sunken by calling g_object_ref_sink().
             */
            force_floating(): void;
            /**
             * Increases the freeze count on `object`. If the freeze count is
             * non-zero, the emission of "notify" signals on `object` is
             * stopped. The signals are queued until the freeze count is decreased
             * to zero. Duplicate notifications are squashed so that at most one
             * #GObject::notify signal is emitted for each property modified while the
             * object is frozen.
             *
             * This is necessary for accessors that modify multiple properties to prevent
             * premature notification while the object is still being modified.
             */
            freeze_notify(): void;
            /**
             * Gets a named field from the objects table of associations (see g_object_set_data()).
             * @param key name of the key for that association
             * @returns the data if found,          or %NULL if no such data exists.
             */
            get_data(key: string): any | null;
            /**
             * Gets a property of an object.
             *
             * The value can be:
             * - an empty GObject.Value initialized by G_VALUE_INIT, which will be automatically initialized with the expected type of the property (since GLib 2.60)
             * - a GObject.Value initialized with the expected type of the property
             * - a GObject.Value initialized with a type to which the expected type of the property can be transformed
             *
             * In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling GObject.Value.unset.
             *
             * Note that GObject.Object.get_property is really intended for language bindings, GObject.Object.get is much more convenient for C programming.
             * @param property_name The name of the property to get
             * @param value Return location for the property value. Can be an empty GObject.Value initialized by G_VALUE_INIT (auto-initialized with expected type since GLib 2.60), a GObject.Value initialized with the expected property type, or a GObject.Value initialized with a transformable type
             */
            get_property(property_name: string, value: GObject.Value | any): any;
            /**
             * This function gets back user data pointers stored via
             * g_object_set_qdata().
             * @param quark A #GQuark, naming the user data pointer
             * @returns The user data pointer set, or %NULL
             */
            get_qdata(quark: GLib.Quark): any | null;
            /**
             * Gets `n_properties` properties for an `object`.
             * Obtained properties will be set to `values`. All properties must be valid.
             * Warnings will be emitted and undefined behaviour may result if invalid
             * properties are passed in.
             * @param names the names of each property to get
             * @param values the values of each property to get
             */
            getv(names: string[], values: (GObject.Value | any)[]): void;
            /**
             * Checks whether `object` has a [floating](floating-refs.html) reference.
             * @returns %TRUE if @object has a floating reference
             */
            is_floating(): boolean;
            /**
             * Emits a "notify" signal for the property `property_name` on `object`.
             *
             * When possible, eg. when signaling a property change from within the class
             * that registered the property, you should use g_object_notify_by_pspec()
             * instead.
             *
             * Note that emission of the notify signal may be blocked with
             * g_object_freeze_notify(). In this case, the signal emissions are queued
             * and will be emitted (in reverse order) when g_object_thaw_notify() is
             * called.
             * @param property_name the name of a property installed on the class of @object.
             */
            notify(property_name: string): void;
            /**
             * Emits a "notify" signal for the property specified by `pspec` on `object`.
             *
             * This function omits the property name lookup, hence it is faster than
             * g_object_notify().
             *
             * One way to avoid using g_object_notify() from within the
             * class that registered the properties, and using g_object_notify_by_pspec()
             * instead, is to store the GParamSpec used with
             * g_object_class_install_property() inside a static array, e.g.:
             *
             *
             * ```c
             *   typedef enum
             *   {
             *     PROP_FOO = 1,
             *     PROP_LAST
             *   } MyObjectProperty;
             *
             *   static GParamSpec *properties[PROP_LAST];
             *
             *   static void
             *   my_object_class_init (MyObjectClass *klass)
             *   {
             *     properties[PROP_FOO] = g_param_spec_int ("foo", NULL, NULL,
             *                                              0, 100,
             *                                              50,
             *                                              G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
             *     g_object_class_install_property (gobject_class,
             *                                      PROP_FOO,
             *                                      properties[PROP_FOO]);
             *   }
             * ```
             *
             *
             * and then notify a change on the "foo" property with:
             *
             *
             * ```c
             *   g_object_notify_by_pspec (self, properties[PROP_FOO]);
             * ```
             *
             * @param pspec the #GParamSpec of a property installed on the class of @object.
             */
            notify_by_pspec(pspec: GObject.ParamSpec): void;
            /**
             * Increases the reference count of `object`.
             *
             * Since GLib 2.56, if `GLIB_VERSION_MAX_ALLOWED` is 2.56 or greater, the type
             * of `object` will be propagated to the return type (using the GCC typeof()
             * extension), so any casting the caller needs to do on the return type must be
             * explicit.
             * @returns the same @object
             */
            ref(): GObject.Object;
            // Conflicted with Gst.Object.ref
            ref(...args: never[]): any;
            /**
             * Increase the reference count of `object,` and possibly remove the
             * [floating](floating-refs.html) reference, if `object` has a floating reference.
             *
             * In other words, if the object is floating, then this call "assumes
             * ownership" of the floating reference, converting it to a normal
             * reference by clearing the floating flag while leaving the reference
             * count unchanged.  If the object is not floating, then this call
             * adds a new normal reference increasing the reference count by one.
             *
             * Since GLib 2.56, the type of `object` will be propagated to the return type
             * under the same conditions as for g_object_ref().
             * @returns @object
             */
            ref_sink(): GObject.Object;
            /**
             * Releases all references to other objects. This can be used to break
             * reference cycles.
             *
             * This function should only be called from object system implementations.
             */
            run_dispose(): void;
            /**
             * Each object carries around a table of associations from
             * strings to pointers.  This function lets you set an association.
             *
             * If the object already had an association with that name,
             * the old association will be destroyed.
             *
             * Internally, the `key` is converted to a #GQuark using g_quark_from_string().
             * This means a copy of `key` is kept permanently (even after `object` has been
             * finalized) — so it is recommended to only use a small, bounded set of values
             * for `key` in your program, to avoid the #GQuark storage growing unbounded.
             * @param key name of the key
             * @param data data to associate with that key
             */
            set_data(key: string, data?: any | null): void;
            /**
             * Sets a property on an object.
             * @param property_name The name of the property to set
             * @param value The value to set the property to
             */
            set_property(property_name: string, value: GObject.Value | any): void;
            /**
             * Remove a specified datum from the object's data associations,
             * without invoking the association's destroy handler.
             * @param key name of the key
             * @returns the data if found, or %NULL          if no such data exists.
             */
            steal_data(key: string): any | null;
            /**
             * This function gets back user data pointers stored via
             * g_object_set_qdata() and removes the `data` from object
             * without invoking its destroy() function (if any was
             * set).
             * Usually, calling this function is only required to update
             * user data pointers with a destroy notifier, for example:
             *
             * ```c
             * void
             * object_add_to_user_list (GObject     *object,
             *                          const gchar *new_string)
             * {
             *   // the quark, naming the object data
             *   GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
             *   // retrieve the old string list
             *   GList *list = g_object_steal_qdata (object, quark_string_list);
             *
             *   // prepend new string
             *   list = g_list_prepend (list, g_strdup (new_string));
             *   // this changed 'list', so we need to set it again
             *   g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
             * }
             * static void
             * free_string_list (gpointer data)
             * {
             *   GList *node, *list = data;
             *
             *   for (node = list; node; node = node->next)
             *     g_free (node->data);
             *   g_list_free (list);
             * }
             * ```
             *
             * Using g_object_get_qdata() in the above example, instead of
             * g_object_steal_qdata() would have left the destroy function set,
             * and thus the partial string list would have been freed upon
             * g_object_set_qdata_full().
             * @param quark A #GQuark, naming the user data pointer
             * @returns The user data pointer set, or %NULL
             */
            steal_qdata(quark: GLib.Quark): any | null;
            /**
             * Reverts the effect of a previous call to
             * g_object_freeze_notify(). The freeze count is decreased on `object`
             * and when it reaches zero, queued "notify" signals are emitted.
             *
             * Duplicate notifications for each property are squashed so that at most one
             * #GObject::notify signal is emitted for each property, in the reverse order
             * in which they have been queued.
             *
             * It is an error to call this function when the freeze count is zero.
             */
            thaw_notify(): void;
            /**
             * Decreases the reference count of `object`. When its reference count
             * drops to 0, the object is finalized (i.e. its memory is freed).
             *
             * If the pointer to the #GObject may be reused in future (for example, if it is
             * an instance variable of another object), it is recommended to clear the
             * pointer to %NULL rather than retain a dangling pointer to a potentially
             * invalid #GObject instance. Use g_clear_object() for this.
             */
            unref(): void;
            /**
             * This function essentially limits the life time of the `closure` to
             * the life time of the object. That is, when the object is finalized,
             * the `closure` is invalidated by calling g_closure_invalidate() on
             * it, in order to prevent invocations of the closure with a finalized
             * (nonexisting) object. Also, g_object_ref() and g_object_unref() are
             * added as marshal guards to the `closure,` to ensure that an extra
             * reference count is held on `object` during invocation of the
             * `closure`.  Usually, this function will be called on closures that
             * use this `object` as closure data.
             * @param closure #GClosure to watch
             */
            watch_closure(closure: GObject.Closure): void;
            /**
             * the `constructed` function is called by g_object_new() as the
             *  final step of the object creation process.  At the point of the call, all
             *  construction properties have been set on the object.  The purpose of this
             *  call is to allow for object initialisation steps that can only be performed
             *  after construction properties have been set.  `constructed` implementors
             *  should chain up to the `constructed` call of their parent class to allow it
             *  to complete its initialisation.
             */
            vfunc_constructed(): void;
            /**
             * emits property change notification for a bunch
             *  of properties. Overriding `dispatch_properties_changed` should be rarely
             *  needed.
             * @param n_pspecs
             * @param pspecs
             */
            vfunc_dispatch_properties_changed(n_pspecs: number, pspecs: GObject.ParamSpec): void;
            /**
             * the `dispose` function is supposed to drop all references to other
             *  objects, but keep the instance otherwise intact, so that client method
             *  invocations still work. It may be run multiple times (due to reference
             *  loops). Before returning, `dispose` should chain up to the `dispose` method
             *  of the parent class.
             */
            vfunc_dispose(): void;
            /**
             * instance finalization function, should finish the finalization of
             *  the instance begun in `dispose` and chain up to the `finalize` method of the
             *  parent class.
             */
            vfunc_finalize(): void;
            /**
             * the generic getter for all properties of this type. Should be
             *  overridden for every type with properties.
             * @param property_id
             * @param value
             * @param pspec
             */
            vfunc_get_property(property_id: number, value: GObject.Value | any, pspec: GObject.ParamSpec): void;
            /**
             * Emits a "notify" signal for the property `property_name` on `object`.
             *
             * When possible, eg. when signaling a property change from within the class
             * that registered the property, you should use g_object_notify_by_pspec()
             * instead.
             *
             * Note that emission of the notify signal may be blocked with
             * g_object_freeze_notify(). In this case, the signal emissions are queued
             * and will be emitted (in reverse order) when g_object_thaw_notify() is
             * called.
             * @param pspec
             */
            vfunc_notify(pspec: GObject.ParamSpec): void;
            /**
             * the generic setter for all properties of this type. Should be
             *  overridden for every type with properties. If implementations of
             *  `set_property` don't emit property change notification explicitly, this will
             *  be done implicitly by the type system. However, if the notify signal is
             *  emitted explicitly, the type system will not emit it a second time.
             * @param property_id
             * @param value
             * @param pspec
             */
            vfunc_set_property(property_id: number, value: GObject.Value | any, pspec: GObject.ParamSpec): void;
            /**
             * Disconnects a handler from an instance so it will not be called during any future or currently ongoing emissions of the signal it has been connected to.
             * @param id Handler ID of the handler to be disconnected
             */
            disconnect(id: number): void;
            /**
             * Sets multiple properties of an object at once. The properties argument should be a dictionary mapping property names to values.
             * @param properties Object containing the properties to set
             */
            set(properties: { [key: string]: any }): void;
            /**
             * Blocks a handler of an instance so it will not be called during any signal emissions
             * @param id Handler ID of the handler to be blocked
             */
            block_signal_handler(id: number): void;
            /**
             * Unblocks a handler so it will be called again during any signal emissions
             * @param id Handler ID of the handler to be unblocked
             */
            unblock_signal_handler(id: number): void;
            /**
             * Stops a signal's emission by the given signal name. This will prevent the default handler and any subsequent signal handlers from being invoked.
             * @param detailedName Name of the signal to stop emission of
             */
            stop_emission_by_name(detailedName: string): void;
        }

        namespace AppSrc {
            // Signal signatures
            interface SignalSignatures extends GstBase.BaseSrc.SignalSignatures {
                'end-of-stream': () => Gst.FlowReturn;
                'enough-data': () => void;
                'need-data': (arg0: number) => void;
                'push-buffer': (arg0: Gst.Buffer) => Gst.FlowReturn;
                'push-buffer-list': (arg0: Gst.BufferList) => Gst.FlowReturn;
                'push-sample': (arg0: Gst.Sample) => Gst.FlowReturn;
                'seek-data': (arg0: number) => boolean | void;
                'notify::block': (pspec: GObject.ParamSpec) => void;
                'notify::caps': (pspec: GObject.ParamSpec) => void;
                'notify::current-level-buffers': (pspec: GObject.ParamSpec) => void;
                'notify::current-level-bytes': (pspec: GObject.ParamSpec) => void;
                'notify::current-level-time': (pspec: GObject.ParamSpec) => void;
                'notify::duration': (pspec: GObject.ParamSpec) => void;
                'notify::emit-signals': (pspec: GObject.ParamSpec) => void;
                'notify::format': (pspec: GObject.ParamSpec) => void;
                'notify::handle-segment-change': (pspec: GObject.ParamSpec) => void;
                'notify::is-live': (pspec: GObject.ParamSpec) => void;
                'notify::leaky-type': (pspec: GObject.ParamSpec) => void;
                'notify::max-buffers': (pspec: GObject.ParamSpec) => void;
                'notify::max-bytes': (pspec: GObject.ParamSpec) => void;
                'notify::max-latency': (pspec: GObject.ParamSpec) => void;
                'notify::max-time': (pspec: GObject.ParamSpec) => void;
                'notify::min-latency': (pspec: GObject.ParamSpec) => void;
                'notify::min-percent': (pspec: GObject.ParamSpec) => void;
                'notify::size': (pspec: GObject.ParamSpec) => void;
                'notify::stream-type': (pspec: GObject.ParamSpec) => void;
                'notify::automatic-eos': (pspec: GObject.ParamSpec) => void;
                'notify::blocksize': (pspec: GObject.ParamSpec) => void;
                'notify::do-timestamp': (pspec: GObject.ParamSpec) => void;
                'notify::num-buffers': (pspec: GObject.ParamSpec) => void;
                'notify::typefind': (pspec: GObject.ParamSpec) => void;
                'notify::name': (pspec: GObject.ParamSpec) => void;
                'notify::parent': (pspec: GObject.ParamSpec) => void;
            }

            // Constructor properties interface

            interface ConstructorProps extends GstBase.BaseSrc.ConstructorProps, Gst.URIHandler.ConstructorProps {
                block: boolean;
                caps: Gst.Caps;
                current_level_buffers: number;
                currentLevelBuffers: number;
                current_level_bytes: number;
                currentLevelBytes: number;
                current_level_time: number;
                currentLevelTime: number;
                duration: number;
                emit_signals: boolean;
                emitSignals: boolean;
                format: Gst.Format;
                handle_segment_change: boolean;
                handleSegmentChange: boolean;
                is_live: boolean | any;
                isLive: boolean;
                leaky_type: AppLeakyType;
                leakyType: AppLeakyType;
                max_buffers: number;
                maxBuffers: number;
                max_bytes: number;
                maxBytes: number;
                max_latency: number;
                maxLatency: number;
                max_time: number;
                maxTime: number;
                min_latency: number;
                minLatency: number;
                min_percent: number;
                minPercent: number;
                size: number;
                stream_type: AppStreamType;
                streamType: AppStreamType;
            }
        }

        /**
         * The appsrc element can be used by applications to insert data into a
         * GStreamer pipeline. Unlike most GStreamer elements, appsrc provides
         * external API functions.
         *
         * appsrc can be used by linking with the libgstapp library to access the
         * methods directly or by using the appsrc action signals.
         *
         * Before operating appsrc, the caps property must be set to fixed caps
         * describing the format of the data that will be pushed with appsrc. An
         * exception to this is when pushing buffers with unknown caps, in which case no
         * caps should be set. This is typically true of file-like sources that push raw
         * byte buffers. If you don't want to explicitly set the caps, you can use
         * gst_app_src_push_sample. This method gets the caps associated with the
         * sample and sets them on the appsrc replacing any previously set caps (if
         * different from sample's caps).
         *
         * The main way of handing data to the appsrc element is by calling the
         * gst_app_src_push_buffer() method or by emitting the push-buffer action signal.
         * This will put the buffer onto a queue from which appsrc will read from in its
         * streaming thread. It is important to note that data transport will not happen
         * from the thread that performed the push-buffer call.
         *
         * The "max-bytes", "max-buffers" and "max-time" properties control how much
         * data can be queued in appsrc before appsrc considers the queue full. A
         * filled internal queue will always signal the "enough-data" signal, which
         * signals the application that it should stop pushing data into appsrc. The
         * "block" property will cause appsrc to block the push-buffer method until
         * free data becomes available again.
         *
         * When the internal queue is running out of data, the "need-data" signal is
         * emitted, which signals the application that it should start pushing more data
         * into appsrc.
         *
         * In addition to the "need-data" and "enough-data" signals, appsrc can emit the
         * "seek-data" signal when the "stream-mode" property is set to "seekable" or
         * "random-access". The signal argument will contain the new desired position in
         * the stream expressed in the unit set with the "format" property. After
         * receiving the seek-data signal, the application should push-buffers from the
         * new position.
         *
         * These signals allow the application to operate the appsrc in two different
         * ways:
         *
         * The push mode, in which the application repeatedly calls the push-buffer/push-sample
         * method with a new buffer/sample. Optionally, the queue size in the appsrc
         * can be controlled with the enough-data and need-data signals by respectively
         * stopping/starting the push-buffer/push-sample calls. This is a typical
         * mode of operation for the stream-type "stream" and "seekable". Use this
         * mode when implementing various network protocols or hardware devices.
         *
         * The pull mode, in which the need-data signal triggers the next push-buffer call.
         * This mode is typically used in the "random-access" stream-type. Use this
         * mode for file access or other randomly accessible sources. In this mode, a
         * buffer of exactly the amount of bytes given by the need-data signal should be
         * pushed into appsrc.
         *
         * In all modes, the size property on appsrc should contain the total stream
         * size in bytes. Setting this property is mandatory in the random-access mode.
         * For the stream and seekable modes, setting this property is optional but
         * recommended.
         *
         * When the application has finished pushing data into appsrc, it should call
         * gst_app_src_end_of_stream() or emit the end-of-stream action signal. After
         * this call, no more buffers can be pushed into appsrc until a flushing seek
         * occurs or the state of the appsrc has gone through READY.
         */
        class AppSrc extends GstBase.BaseSrc implements Gst.URIHandler {
            static $gtype: GObject.GType<AppSrc>;

            // Properties

            /**
             * When max-bytes are queued and after the enough-data signal has been emitted,
             * block any further push-buffer calls until the amount of queued bytes drops
             * below the max-bytes limit.
             */
            get block(): boolean;
            set block(val: boolean);
            /**
             * The GstCaps that will negotiated downstream and will be put
             * on outgoing buffers.
             */
            get caps(): Gst.Caps;
            set caps(val: Gst.Caps);
            /**
             * The number of currently queued buffers inside appsrc.
             */
            get current_level_buffers(): number;
            /**
             * The number of currently queued buffers inside appsrc.
             */
            get currentLevelBuffers(): number;
            /**
             * The number of currently queued bytes inside appsrc.
             */
            get current_level_bytes(): number;
            /**
             * The number of currently queued bytes inside appsrc.
             */
            get currentLevelBytes(): number;
            /**
             * The amount of currently queued time inside appsrc.
             */
            get current_level_time(): number;
            /**
             * The amount of currently queued time inside appsrc.
             */
            get currentLevelTime(): number;
            /**
             * The total duration in nanoseconds of the data stream. If the total duration is known, it
             * is recommended to configure it with this property.
             */
            get duration(): number;
            set duration(val: number);
            /**
             * Make appsrc emit the "need-data", "enough-data" and "seek-data" signals.
             * This option is by default enabled for backwards compatibility reasons but
             * can disabled when needed because signal emission is expensive.
             */
            get emit_signals(): boolean;
            set emit_signals(val: boolean);
            /**
             * Make appsrc emit the "need-data", "enough-data" and "seek-data" signals.
             * This option is by default enabled for backwards compatibility reasons but
             * can disabled when needed because signal emission is expensive.
             */
            get emitSignals(): boolean;
            set emitSignals(val: boolean);
            /**
             * The format to use for segment events. When the source is producing
             * timestamped buffers this property should be set to GST_FORMAT_TIME.
             */
            get format(): Gst.Format;
            set format(val: Gst.Format);
            /**
             * When enabled, appsrc will check GstSegment in GstSample which was
             * pushed via gst_app_src_push_sample() or "push-sample" signal action.
             * If a GstSegment is changed, corresponding segment event will be followed
             * by next data flow.
             *
             * FIXME: currently only GST_FORMAT_TIME format is supported and therefore
             * GstAppSrc::format should be time. However, possibly #GstAppSrc can support
             * other formats.
             */
            get handle_segment_change(): boolean;
            set handle_segment_change(val: boolean);
            /**
             * When enabled, appsrc will check GstSegment in GstSample which was
             * pushed via gst_app_src_push_sample() or "push-sample" signal action.
             * If a GstSegment is changed, corresponding segment event will be followed
             * by next data flow.
             *
             * FIXME: currently only GST_FORMAT_TIME format is supported and therefore
             * GstAppSrc::format should be time. However, possibly #GstAppSrc can support
             * other formats.
             */
            get handleSegmentChange(): boolean;
            set handleSegmentChange(val: boolean);
            /**
             * Instruct the source to behave like a live source. This includes that it
             * will only push out buffers in the PLAYING state.
             */
            // This accessor conflicts with a field or function name in a parent class or interface.
            is_live: boolean | any;
            /**
             * Instruct the source to behave like a live source. This includes that it
             * will only push out buffers in the PLAYING state.
             */
            get isLive(): boolean;
            set isLive(val: boolean);
            /**
             * When set to any other value than GST_APP_LEAKY_TYPE_NONE then the appsrc
             * will drop any buffers that are pushed into it once its internal queue is
             * full. The selected type defines whether to drop the oldest or new
             * buffers.
             */
            get leaky_type(): AppLeakyType;
            set leaky_type(val: AppLeakyType);
            /**
             * When set to any other value than GST_APP_LEAKY_TYPE_NONE then the appsrc
             * will drop any buffers that are pushed into it once its internal queue is
             * full. The selected type defines whether to drop the oldest or new
             * buffers.
             */
            get leakyType(): AppLeakyType;
            set leakyType(val: AppLeakyType);
            /**
             * The maximum amount of buffers that can be queued internally.
             * After the maximum amount of buffers are queued, appsrc will emit the
             * "enough-data" signal.
             */
            get max_buffers(): number;
            set max_buffers(val: number);
            /**
             * The maximum amount of buffers that can be queued internally.
             * After the maximum amount of buffers are queued, appsrc will emit the
             * "enough-data" signal.
             */
            get maxBuffers(): number;
            set maxBuffers(val: number);
            /**
             * The maximum amount of bytes that can be queued internally.
             * After the maximum amount of bytes are queued, appsrc will emit the
             * "enough-data" signal.
             */
            get max_bytes(): number;
            set max_bytes(val: number);
            /**
             * The maximum amount of bytes that can be queued internally.
             * After the maximum amount of bytes are queued, appsrc will emit the
             * "enough-data" signal.
             */
            get maxBytes(): number;
            set maxBytes(val: number);
            get max_latency(): number;
            set max_latency(val: number);
            get maxLatency(): number;
            set maxLatency(val: number);
            /**
             * The maximum amount of time that can be queued internally.
             * After the maximum amount of time are queued, appsrc will emit the
             * "enough-data" signal.
             */
            get max_time(): number;
            set max_time(val: number);
            /**
             * The maximum amount of time that can be queued internally.
             * After the maximum amount of time are queued, appsrc will emit the
             * "enough-data" signal.
             */
            get maxTime(): number;
            set maxTime(val: number);
            /**
             * The minimum latency of the source. A value of -1 will use the default
             * latency calculations of #GstBaseSrc.
             */
            get min_latency(): number;
            set min_latency(val: number);
            /**
             * The minimum latency of the source. A value of -1 will use the default
             * latency calculations of #GstBaseSrc.
             */
            get minLatency(): number;
            set minLatency(val: number);
            /**
             * Make appsrc emit the "need-data" signal when the amount of bytes in the
             * queue drops below this percentage of max-bytes.
             */
            get min_percent(): number;
            set min_percent(val: number);
            /**
             * Make appsrc emit the "need-data" signal when the amount of bytes in the
             * queue drops below this percentage of max-bytes.
             */
            get minPercent(): number;
            set minPercent(val: number);
            /**
             * The total size in bytes of the data stream. If the total size is known, it
             * is recommended to configure it with this property.
             */
            get size(): number;
            set size(val: number);
            /**
             * The type of stream that this source is producing.  For seekable streams the
             * application should connect to the seek-data signal.
             */
            get stream_type(): AppStreamType;
            set stream_type(val: AppStreamType);
            /**
             * The type of stream that this source is producing.  For seekable streams the
             * application should connect to the seek-data signal.
             */
            get streamType(): AppStreamType;
            set streamType(val: AppStreamType);

            /**
             * Compile-time signal type information.
             *
             * This instance property is generated only for TypeScript type checking.
             * It is not defined at runtime and should not be accessed in JS code.
             * @internal
             */
            $signals: AppSrc.SignalSignatures;

            // Fields

            basesrc: GstBase.BaseSrc;

            // Constructors

            constructor(properties?: Partial<AppSrc.ConstructorProps>, ...args: any[]);

            _init(...args: any[]): void;

            // Signals

            connect<K extends keyof AppSrc.SignalSignatures>(
                signal: K,
                callback: GObject.SignalCallback<this, AppSrc.SignalSignatures[K]>,
            ): number;
            connect(signal: string, callback: (...args: any[]) => any): number;
            connect_after<K extends keyof AppSrc.SignalSignatures>(
                signal: K,
                callback: GObject.SignalCallback<this, AppSrc.SignalSignatures[K]>,
            ): number;
            connect_after(signal: string, callback: (...args: any[]) => any): number;
            emit<K extends keyof AppSrc.SignalSignatures>(
                signal: K,
                ...args: GObject.GjsParameters<AppSrc.SignalSignatures[K]> extends [any, ...infer Q] ? Q : never
            ): void;
            emit(signal: string, ...args: any[]): void;

            // Virtual methods

            /**
             * Indicates to the appsrc element that the last buffer queued in the
             * element is the last buffer of the stream.
             */
            vfunc_end_of_stream(): Gst.FlowReturn;
            vfunc_enough_data(): void;
            vfunc_need_data(length: number): void;
            /**
             * Adds a buffer to the queue of buffers that the appsrc element will
             * push to its source pad.  This function takes ownership of the buffer.
             *
             * When the block property is TRUE, this function can block until free
             * space becomes available in the queue.
             * @param buffer a #GstBuffer to push
             */
            vfunc_push_buffer(buffer: Gst.Buffer): Gst.FlowReturn;
            /**
             * Adds a buffer list to the queue of buffers and buffer lists that the
             * appsrc element will push to its source pad.  This function takes ownership
             * of `buffer_list`.
             *
             * When the block property is TRUE, this function can block until free
             * space becomes available in the queue.
             * @param buffer_list a #GstBufferList to push
             */
            vfunc_push_buffer_list(buffer_list: Gst.BufferList): Gst.FlowReturn;
            /**
             * Extract a buffer from the provided sample and adds it to the queue of
             * buffers that the appsrc element will push to its source pad. Any
             * previous caps that were set on appsrc will be replaced by the caps
             * associated with the sample if not equal.
             *
             * This function does not take ownership of the
             * sample so the sample needs to be unreffed after calling this function.
             *
             * When the block property is TRUE, this function can block until free
             * space becomes available in the queue.
             * @param sample a #GstSample from which buffer and caps may be extracted
             */
            vfunc_push_sample(sample: Gst.Sample): Gst.FlowReturn;
            vfunc_seek_data(offset: number): boolean;

            // Methods

            /**
             * Indicates to the appsrc element that the last buffer queued in the
             * element is the last buffer of the stream.
             * @returns #GST_FLOW_OK when the EOS was successfully queued. #GST_FLOW_FLUSHING when @appsrc is not PAUSED or PLAYING.
             */
            end_of_stream(): Gst.FlowReturn;
            /**
             * Get the configured caps on `appsrc`.
             * @returns the #GstCaps produced by the source. gst_caps_unref() after usage.
             */
            get_caps(): Gst.Caps | null;
            /**
             * Get the number of currently queued buffers inside `appsrc`.
             * @returns The number of currently queued buffers.
             */
            get_current_level_buffers(): number;
            /**
             * Get the number of currently queued bytes inside `appsrc`.
             * @returns The number of currently queued bytes.
             */
            get_current_level_bytes(): number;
            /**
             * Get the amount of currently queued time inside `appsrc`.
             * @returns The amount of currently queued time.
             */
            get_current_level_time(): Gst.ClockTime;
            /**
             * Get the duration of the stream in nanoseconds. A value of GST_CLOCK_TIME_NONE means that the duration is
             * not known.
             * @returns the duration of the stream previously set with gst_app_src_set_duration();
             */
            get_duration(): Gst.ClockTime;
            /**
             * Check if appsrc will emit the "new-preroll" and "new-buffer" signals.
             * @returns %TRUE if @appsrc is emitting the "new-preroll" and "new-buffer" signals.
             */
            get_emit_signals(): boolean;
            /**
             * Retrieve the min and max latencies in `min` and `max` respectively.
             */
            get_latency(): [number, number];
            /**
             * Returns the currently set #GstAppLeakyType. See gst_app_src_set_leaky_type()
             * for more details.
             * @returns The currently set #GstAppLeakyType.
             */
            get_leaky_type(): AppLeakyType;
            /**
             * Get the maximum amount of buffers that can be queued in `appsrc`.
             * @returns The maximum amount of buffers that can be queued.
             */
            get_max_buffers(): number;
            /**
             * Get the maximum amount of bytes that can be queued in `appsrc`.
             * @returns The maximum amount of bytes that can be queued.
             */
            get_max_bytes(): number;
            /**
             * Get the maximum amount of time that can be queued in `appsrc`.
             * @returns The maximum amount of time that can be queued.
             */
            get_max_time(): Gst.ClockTime;
            /**
             * Get the size of the stream in bytes. A value of -1 means that the size is
             * not known.
             * @returns the size of the stream previously set with gst_app_src_set_size();
             */
            get_size(): number;
            /**
             * Get the stream type. Control the stream type of `appsrc`
             * with gst_app_src_set_stream_type().
             * @returns the stream type.
             */
            get_stream_type(): AppStreamType;
            /**
             * Adds a buffer to the queue of buffers that the appsrc element will
             * push to its source pad.  This function takes ownership of the buffer.
             *
             * When the block property is TRUE, this function can block until free
             * space becomes available in the queue.
             * @param buffer a #GstBuffer to push
             * @returns #GST_FLOW_OK when the buffer was successfully queued. #GST_FLOW_FLUSHING when @appsrc is not PAUSED or PLAYING. #GST_FLOW_EOS when EOS occurred.
             */
            push_buffer(buffer: Gst.Buffer): Gst.FlowReturn;
            /**
             * Adds a buffer list to the queue of buffers and buffer lists that the
             * appsrc element will push to its source pad.  This function takes ownership
             * of `buffer_list`.
             *
             * When the block property is TRUE, this function can block until free
             * space becomes available in the queue.
             * @param buffer_list a #GstBufferList to push
             * @returns #GST_FLOW_OK when the buffer list was successfully queued. #GST_FLOW_FLUSHING when @appsrc is not PAUSED or PLAYING. #GST_FLOW_EOS when EOS occurred.
             */
            push_buffer_list(buffer_list: Gst.BufferList): Gst.FlowReturn;
            /**
             * Extract a buffer from the provided sample and adds it to the queue of
             * buffers that the appsrc element will push to its source pad. Any
             * previous caps that were set on appsrc will be replaced by the caps
             * associated with the sample if not equal.
             *
             * This function does not take ownership of the
             * sample so the sample needs to be unreffed after calling this function.
             *
             * When the block property is TRUE, this function can block until free
             * space becomes available in the queue.
             * @param sample a #GstSample from which buffer and caps may be extracted
             * @returns #GST_FLOW_OK when the buffer was successfully queued. #GST_FLOW_FLUSHING when @appsrc is not PAUSED or PLAYING. #GST_FLOW_EOS when EOS occurred.
             */
            push_sample(sample: Gst.Sample): Gst.FlowReturn;
            /**
             * Set the capabilities on the appsrc element.  This function takes
             * a copy of the caps structure. After calling this method, the source will
             * only produce caps that match `caps`. `caps` must be fixed and the caps on the
             * buffers must match the caps or left NULL.
             * @param caps caps to set
             */
            set_caps(caps?: Gst.Caps | null): void;
            // Conflicted with GstBase.BaseSrc.set_caps
            set_caps(...args: never[]): any;
            /**
             * Set the duration of the stream in nanoseconds. A value of GST_CLOCK_TIME_NONE means that the duration is
             * not known.
             * @param duration the duration to set
             */
            set_duration(duration: Gst.ClockTime): void;
            /**
             * Make appsrc emit the "new-preroll" and "new-buffer" signals. This option is
             * by default disabled because signal emission is expensive and unneeded when
             * the application prefers to operate in pull mode.
             * @param emit the new state
             */
            set_emit_signals(emit: boolean): void;
            /**
             * Configure the `min` and `max` latency in `src`. If `min` is set to -1, the
             * default latency calculations for pseudo-live sources will be used.
             * @param min the min latency
             * @param max the max latency
             */
            set_latency(min: number, max: number): void;
            /**
             * When set to any other value than GST_APP_LEAKY_TYPE_NONE then the appsrc
             * will drop any buffers that are pushed into it once its internal queue is
             * full. The selected type defines whether to drop the oldest or new
             * buffers.
             * @param leaky the #GstAppLeakyType
             */
            set_leaky_type(leaky: AppLeakyType | null): void;
            /**
             * Set the maximum amount of buffers that can be queued in `appsrc`.
             * After the maximum amount of buffers are queued, `appsrc` will emit the
             * "enough-data" signal.
             * @param max the maximum number of buffers to queue
             */
            set_max_buffers(max: number): void;
            /**
             * Set the maximum amount of bytes that can be queued in `appsrc`.
             * After the maximum amount of bytes are queued, `appsrc` will emit the
             * "enough-data" signal.
             * @param max the maximum number of bytes to queue
             */
            set_max_bytes(max: number): void;
            /**
             * Set the maximum amount of time that can be queued in `appsrc`.
             * After the maximum amount of time are queued, `appsrc` will emit the
             * "enough-data" signal.
             * @param max the maximum amonut of time to queue
             */
            set_max_time(max: Gst.ClockTime): void;
            /**
             * Set the size of the stream in bytes. A value of -1 means that the size is
             * not known.
             * @param size the size to set
             */
            set_size(size: number): void;
            /**
             * Set the stream type on `appsrc`. For seekable streams, the "seek" signal must
             * be connected to.
             *
             * A stream_type stream
             * @param type the new state
             */
            set_stream_type(type: AppStreamType | null): void;

            // Inherited methods
            /**
             * Gets the list of protocols supported by `handler`. This list may not be
             * modified.
             * @returns the     supported protocols.  Returns %NULL if the @handler isn't     implemented properly, or the @handler doesn't support any     protocols.
             */
            get_protocols(): string[] | null;
            /**
             * Gets the currently handled URI.
             * @returns the URI currently handled by   the @handler.  Returns %NULL if there are no URI currently   handled. The returned string must be freed with g_free() when no   longer needed.
             */
            get_uri(): string | null;
            /**
             * Gets the type of the given URI handler
             * @returns the #GstURIType of the URI handler. Returns #GST_URI_UNKNOWN if the @handler isn't implemented correctly.
             */
            get_uri_type(): Gst.URIType;
            /**
             * Tries to set the URI of the given handler.
             * @param uri URI to set
             * @returns %TRUE if the URI was set successfully, else %FALSE.
             */
            set_uri(uri: string): boolean;
            /**
             * Gets the currently handled URI.
             */
            vfunc_get_uri(): string | null;
            /**
             * Tries to set the URI of the given handler.
             * @param uri URI to set
             */
            vfunc_set_uri(uri: string): boolean;
            /**
             * Creates a binding between `source_property` on `source` and `target_property`
             * on `target`.
             *
             * Whenever the `source_property` is changed the `target_property` is
             * updated using the same value. For instance:
             *
             *
             * ```c
             *   g_object_bind_property (action, "active", widget, "sensitive", 0);
             * ```
             *
             *
             * Will result in the "sensitive" property of the widget #GObject instance to be
             * updated with the same value of the "active" property of the action #GObject
             * instance.
             *
             * If `flags` contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual:
             * if `target_property` on `target` changes then the `source_property` on `source`
             * will be updated as well.
             *
             * The binding will automatically be removed when either the `source` or the
             * `target` instances are finalized. To remove the binding without affecting the
             * `source` and the `target` you can just call g_object_unref() on the returned
             * #GBinding instance.
             *
             * Removing the binding by calling g_object_unref() on it must only be done if
             * the binding, `source` and `target` are only used from a single thread and it
             * is clear that both `source` and `target` outlive the binding. Especially it
             * is not safe to rely on this if the binding, `source` or `target` can be
             * finalized from different threads. Keep another reference to the binding and
             * use g_binding_unbind() instead to be on the safe side.
             *
             * A #GObject can have multiple bindings.
             * @param source_property the property on @source to bind
             * @param target the target #GObject
             * @param target_property the property on @target to bind
             * @param flags flags to pass to #GBinding
             * @returns the #GBinding instance representing the     binding between the two #GObject instances. The binding is released     whenever the #GBinding reference count reaches zero.
             */
            bind_property(
                source_property: string,
                target: GObject.Object,
                target_property: string,
                flags: GObject.BindingFlags | null,
            ): GObject.Binding;
            /**
             * Complete version of g_object_bind_property().
             *
             * Creates a binding between `source_property` on `source` and `target_property`
             * on `target,` allowing you to set the transformation functions to be used by
             * the binding.
             *
             * If `flags` contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual:
             * if `target_property` on `target` changes then the `source_property` on `source`
             * will be updated as well. The `transform_from` function is only used in case
             * of bidirectional bindings, otherwise it will be ignored
             *
             * The binding will automatically be removed when either the `source` or the
             * `target` instances are finalized. This will release the reference that is
             * being held on the #GBinding instance; if you want to hold on to the
             * #GBinding instance, you will need to hold a reference to it.
             *
             * To remove the binding, call g_binding_unbind().
             *
             * A #GObject can have multiple bindings.
             *
             * The same `user_data` parameter will be used for both `transform_to`
             * and `transform_from` transformation functions; the `notify` function will
             * be called once, when the binding is removed. If you need different data
             * for each transformation function, please use
             * g_object_bind_property_with_closures() instead.
             * @param source_property the property on @source to bind
             * @param target the target #GObject
             * @param target_property the property on @target to bind
             * @param flags flags to pass to #GBinding
             * @param transform_to the transformation function     from the @source to the @target, or %NULL to use the default
             * @param transform_from the transformation function     from the @target to the @source, or %NULL to use the default
             * @param notify a function to call when disposing the binding, to free     resources used by the transformation functions, or %NULL if not required
             * @returns the #GBinding instance representing the     binding between the two #GObject instances. The binding is released     whenever the #GBinding reference count reaches zero.
             */
            bind_property_full(
                source_property: string,
                target: GObject.Object,
                target_property: string,
                flags: GObject.BindingFlags | null,
                transform_to?: GObject.BindingTransformFunc | null,
                transform_from?: GObject.BindingTransformFunc | null,
                notify?: GLib.DestroyNotify | null,
            ): GObject.Binding;
            // Conflicted with GObject.Object.bind_property_full
            bind_property_full(...args: never[]): any;
            /**
             * This function is intended for #GObject implementations to re-enforce
             * a [floating](floating-refs.html) object reference. Doing this is seldom
             * required: all #GInitiallyUnowneds are created with a floating reference
             * which usually just needs to be sunken by calling g_object_ref_sink().
             */
            force_floating(): void;
            /**
             * Increases the freeze count on `object`. If the freeze count is
             * non-zero, the emission of "notify" signals on `object` is
             * stopped. The signals are queued until the freeze count is decreased
             * to zero. Duplicate notifications are squashed so that at most one
             * #GObject::notify signal is emitted for each property modified while the
             * object is frozen.
             *
             * This is necessary for accessors that modify multiple properties to prevent
             * premature notification while the object is still being modified.
             */
            freeze_notify(): void;
            /**
             * Gets a named field from the objects table of associations (see g_object_set_data()).
             * @param key name of the key for that association
             * @returns the data if found,          or %NULL if no such data exists.
             */
            get_data(key: string): any | null;
            /**
             * Gets a property of an object.
             *
             * The value can be:
             * - an empty GObject.Value initialized by G_VALUE_INIT, which will be automatically initialized with the expected type of the property (since GLib 2.60)
             * - a GObject.Value initialized with the expected type of the property
             * - a GObject.Value initialized with a type to which the expected type of the property can be transformed
             *
             * In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling GObject.Value.unset.
             *
             * Note that GObject.Object.get_property is really intended for language bindings, GObject.Object.get is much more convenient for C programming.
             * @param property_name The name of the property to get
             * @param value Return location for the property value. Can be an empty GObject.Value initialized by G_VALUE_INIT (auto-initialized with expected type since GLib 2.60), a GObject.Value initialized with the expected property type, or a GObject.Value initialized with a transformable type
             */
            get_property(property_name: string, value: GObject.Value | any): any;
            /**
             * This function gets back user data pointers stored via
             * g_object_set_qdata().
             * @param quark A #GQuark, naming the user data pointer
             * @returns The user data pointer set, or %NULL
             */
            get_qdata(quark: GLib.Quark): any | null;
            /**
             * Gets `n_properties` properties for an `object`.
             * Obtained properties will be set to `values`. All properties must be valid.
             * Warnings will be emitted and undefined behaviour may result if invalid
             * properties are passed in.
             * @param names the names of each property to get
             * @param values the values of each property to get
             */
            getv(names: string[], values: (GObject.Value | any)[]): void;
            /**
             * Checks whether `object` has a [floating](floating-refs.html) reference.
             * @returns %TRUE if @object has a floating reference
             */
            is_floating(): boolean;
            /**
             * Emits a "notify" signal for the property `property_name` on `object`.
             *
             * When possible, eg. when signaling a property change from within the class
             * that registered the property, you should use g_object_notify_by_pspec()
             * instead.
             *
             * Note that emission of the notify signal may be blocked with
             * g_object_freeze_notify(). In this case, the signal emissions are queued
             * and will be emitted (in reverse order) when g_object_thaw_notify() is
             * called.
             * @param property_name the name of a property installed on the class of @object.
             */
            notify(property_name: string): void;
            /**
             * Emits a "notify" signal for the property specified by `pspec` on `object`.
             *
             * This function omits the property name lookup, hence it is faster than
             * g_object_notify().
             *
             * One way to avoid using g_object_notify() from within the
             * class that registered the properties, and using g_object_notify_by_pspec()
             * instead, is to store the GParamSpec used with
             * g_object_class_install_property() inside a static array, e.g.:
             *
             *
             * ```c
             *   typedef enum
             *   {
             *     PROP_FOO = 1,
             *     PROP_LAST
             *   } MyObjectProperty;
             *
             *   static GParamSpec *properties[PROP_LAST];
             *
             *   static void
             *   my_object_class_init (MyObjectClass *klass)
             *   {
             *     properties[PROP_FOO] = g_param_spec_int ("foo", NULL, NULL,
             *                                              0, 100,
             *                                              50,
             *                                              G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
             *     g_object_class_install_property (gobject_class,
             *                                      PROP_FOO,
             *                                      properties[PROP_FOO]);
             *   }
             * ```
             *
             *
             * and then notify a change on the "foo" property with:
             *
             *
             * ```c
             *   g_object_notify_by_pspec (self, properties[PROP_FOO]);
             * ```
             *
             * @param pspec the #GParamSpec of a property installed on the class of @object.
             */
            notify_by_pspec(pspec: GObject.ParamSpec): void;
            /**
             * Increases the reference count of `object`.
             *
             * Since GLib 2.56, if `GLIB_VERSION_MAX_ALLOWED` is 2.56 or greater, the type
             * of `object` will be propagated to the return type (using the GCC typeof()
             * extension), so any casting the caller needs to do on the return type must be
             * explicit.
             * @returns the same @object
             */
            ref(): GObject.Object;
            // Conflicted with Gst.Object.ref
            ref(...args: never[]): any;
            /**
             * Increase the reference count of `object,` and possibly remove the
             * [floating](floating-refs.html) reference, if `object` has a floating reference.
             *
             * In other words, if the object is floating, then this call "assumes
             * ownership" of the floating reference, converting it to a normal
             * reference by clearing the floating flag while leaving the reference
             * count unchanged.  If the object is not floating, then this call
             * adds a new normal reference increasing the reference count by one.
             *
             * Since GLib 2.56, the type of `object` will be propagated to the return type
             * under the same conditions as for g_object_ref().
             * @returns @object
             */
            ref_sink(): GObject.Object;
            /**
             * Releases all references to other objects. This can be used to break
             * reference cycles.
             *
             * This function should only be called from object system implementations.
             */
            run_dispose(): void;
            /**
             * Each object carries around a table of associations from
             * strings to pointers.  This function lets you set an association.
             *
             * If the object already had an association with that name,
             * the old association will be destroyed.
             *
             * Internally, the `key` is converted to a #GQuark using g_quark_from_string().
             * This means a copy of `key` is kept permanently (even after `object` has been
             * finalized) — so it is recommended to only use a small, bounded set of values
             * for `key` in your program, to avoid the #GQuark storage growing unbounded.
             * @param key name of the key
             * @param data data to associate with that key
             */
            set_data(key: string, data?: any | null): void;
            /**
             * Sets a property on an object.
             * @param property_name The name of the property to set
             * @param value The value to set the property to
             */
            set_property(property_name: string, value: GObject.Value | any): void;
            /**
             * Remove a specified datum from the object's data associations,
             * without invoking the association's destroy handler.
             * @param key name of the key
             * @returns the data if found, or %NULL          if no such data exists.
             */
            steal_data(key: string): any | null;
            /**
             * This function gets back user data pointers stored via
             * g_object_set_qdata() and removes the `data` from object
             * without invoking its destroy() function (if any was
             * set).
             * Usually, calling this function is only required to update
             * user data pointers with a destroy notifier, for example:
             *
             * ```c
             * void
             * object_add_to_user_list (GObject     *object,
             *                          const gchar *new_string)
             * {
             *   // the quark, naming the object data
             *   GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
             *   // retrieve the old string list
             *   GList *list = g_object_steal_qdata (object, quark_string_list);
             *
             *   // prepend new string
             *   list = g_list_prepend (list, g_strdup (new_string));
             *   // this changed 'list', so we need to set it again
             *   g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
             * }
             * static void
             * free_string_list (gpointer data)
             * {
             *   GList *node, *list = data;
             *
             *   for (node = list; node; node = node->next)
             *     g_free (node->data);
             *   g_list_free (list);
             * }
             * ```
             *
             * Using g_object_get_qdata() in the above example, instead of
             * g_object_steal_qdata() would have left the destroy function set,
             * and thus the partial string list would have been freed upon
             * g_object_set_qdata_full().
             * @param quark A #GQuark, naming the user data pointer
             * @returns The user data pointer set, or %NULL
             */
            steal_qdata(quark: GLib.Quark): any | null;
            /**
             * Reverts the effect of a previous call to
             * g_object_freeze_notify(). The freeze count is decreased on `object`
             * and when it reaches zero, queued "notify" signals are emitted.
             *
             * Duplicate notifications for each property are squashed so that at most one
             * #GObject::notify signal is emitted for each property, in the reverse order
             * in which they have been queued.
             *
             * It is an error to call this function when the freeze count is zero.
             */
            thaw_notify(): void;
            /**
             * Decreases the reference count of `object`. When its reference count
             * drops to 0, the object is finalized (i.e. its memory is freed).
             *
             * If the pointer to the #GObject may be reused in future (for example, if it is
             * an instance variable of another object), it is recommended to clear the
             * pointer to %NULL rather than retain a dangling pointer to a potentially
             * invalid #GObject instance. Use g_clear_object() for this.
             */
            unref(): void;
            /**
             * This function essentially limits the life time of the `closure` to
             * the life time of the object. That is, when the object is finalized,
             * the `closure` is invalidated by calling g_closure_invalidate() on
             * it, in order to prevent invocations of the closure with a finalized
             * (nonexisting) object. Also, g_object_ref() and g_object_unref() are
             * added as marshal guards to the `closure,` to ensure that an extra
             * reference count is held on `object` during invocation of the
             * `closure`.  Usually, this function will be called on closures that
             * use this `object` as closure data.
             * @param closure #GClosure to watch
             */
            watch_closure(closure: GObject.Closure): void;
            /**
             * the `constructed` function is called by g_object_new() as the
             *  final step of the object creation process.  At the point of the call, all
             *  construction properties have been set on the object.  The purpose of this
             *  call is to allow for object initialisation steps that can only be performed
             *  after construction properties have been set.  `constructed` implementors
             *  should chain up to the `constructed` call of their parent class to allow it
             *  to complete its initialisation.
             */
            vfunc_constructed(): void;
            /**
             * emits property change notification for a bunch
             *  of properties. Overriding `dispatch_properties_changed` should be rarely
             *  needed.
             * @param n_pspecs
             * @param pspecs
             */
            vfunc_dispatch_properties_changed(n_pspecs: number, pspecs: GObject.ParamSpec): void;
            /**
             * the `dispose` function is supposed to drop all references to other
             *  objects, but keep the instance otherwise intact, so that client method
             *  invocations still work. It may be run multiple times (due to reference
             *  loops). Before returning, `dispose` should chain up to the `dispose` method
             *  of the parent class.
             */
            vfunc_dispose(): void;
            /**
             * instance finalization function, should finish the finalization of
             *  the instance begun in `dispose` and chain up to the `finalize` method of the
             *  parent class.
             */
            vfunc_finalize(): void;
            /**
             * the generic getter for all properties of this type. Should be
             *  overridden for every type with properties.
             * @param property_id
             * @param value
             * @param pspec
             */
            vfunc_get_property(property_id: number, value: GObject.Value | any, pspec: GObject.ParamSpec): void;
            /**
             * Emits a "notify" signal for the property `property_name` on `object`.
             *
             * When possible, eg. when signaling a property change from within the class
             * that registered the property, you should use g_object_notify_by_pspec()
             * instead.
             *
             * Note that emission of the notify signal may be blocked with
             * g_object_freeze_notify(). In this case, the signal emissions are queued
             * and will be emitted (in reverse order) when g_object_thaw_notify() is
             * called.
             * @param pspec
             */
            vfunc_notify(pspec: GObject.ParamSpec): void;
            /**
             * the generic setter for all properties of this type. Should be
             *  overridden for every type with properties. If implementations of
             *  `set_property` don't emit property change notification explicitly, this will
             *  be done implicitly by the type system. However, if the notify signal is
             *  emitted explicitly, the type system will not emit it a second time.
             * @param property_id
             * @param value
             * @param pspec
             */
            vfunc_set_property(property_id: number, value: GObject.Value | any, pspec: GObject.ParamSpec): void;
            /**
             * Disconnects a handler from an instance so it will not be called during any future or currently ongoing emissions of the signal it has been connected to.
             * @param id Handler ID of the handler to be disconnected
             */
            disconnect(id: number): void;
            /**
             * Sets multiple properties of an object at once. The properties argument should be a dictionary mapping property names to values.
             * @param properties Object containing the properties to set
             */
            set(properties: { [key: string]: any }): void;
            /**
             * Blocks a handler of an instance so it will not be called during any signal emissions
             * @param id Handler ID of the handler to be blocked
             */
            block_signal_handler(id: number): void;
            /**
             * Unblocks a handler so it will be called again during any signal emissions
             * @param id Handler ID of the handler to be unblocked
             */
            unblock_signal_handler(id: number): void;
            /**
             * Stops a signal's emission by the given signal name. This will prevent the default handler and any subsequent signal handlers from being invoked.
             * @param detailedName Name of the signal to stop emission of
             */
            stop_emission_by_name(detailedName: string): void;
        }

        type AppSinkClass = typeof AppSink;
        abstract class AppSinkPrivate {
            static $gtype: GObject.GType<AppSinkPrivate>;
        }

        type AppSrcClass = typeof AppSrc;
        abstract class AppSrcPrivate {
            static $gtype: GObject.GType<AppSrcPrivate>;
        }

        /**
         * Name of the imported GIR library
         * `see` https://gitlab.gnome.org/GNOME/gjs/-/blob/master/gi/ns.cpp#L188
         */
        const __name__: string;
        /**
         * Version of the imported GIR library
         * `see` https://gitlab.gnome.org/GNOME/gjs/-/blob/master/gi/ns.cpp#L189
         */
        const __version__: string;
    }

    export default GstApp;
}

declare module 'gi://GstApp' {
    import GstApp10 from 'gi://GstApp?version=1.0';
    export default GstApp10;
}
// END