"""gr.Video() component.""" from __future__ import annotations import asyncio import json import subprocess import tempfile import warnings from collections.abc import Callable, Sequence from pathlib import Path from typing import TYPE_CHECKING, Any, Literal from gradio_client import handle_file from gradio_client import utils as client_utils from gradio_client.documentation import document from gradio import processing_utils, utils from gradio._vendor.ffmpy import FFmpeg from gradio.components.base import Component, StreamingOutput from gradio.components.button import Button from gradio.components.image_editor import WatermarkOptions, WebcamOptions from gradio.data_classes import FileData, MediaStreamChunk from gradio.events import Events from gradio.i18n import I18nData from gradio.profiling import trace_phase_sync, traced_sync from gradio.utils import get_upload_folder, set_default_buttons if TYPE_CHECKING: from gradio.components import Timer from gradio.events import Dependency @document() class Video(StreamingOutput, Component): """ Creates a video component that can be used to upload/record videos (as an input) or display videos (as an output). For the video to be playable in the browser it must have a compatible container and codec combination. Allowed combinations are .mp4 with h264 codec, .ogg with theora codec, and .webm with vp9 codec. If the component detects that the output video would not be playable in the browser it will attempt to convert it to a playable mp4 video. If the conversion fails, the original video is returned. Demos: video_identity_2 Guides: streaming-inputs, streaming-outputs, object-detection-from-video """ data_model = FileData EVENTS = [ Events.change, Events.clear, Events.start_recording, Events.stop_recording, Events.stop, Events.play, Events.pause, Events.end, Events.upload, Events.input, ] def __init__( self, value: (str | Path | Callable | None) = None, *, format: str | None = None, sources: ( list[Literal["upload", "webcam"]] | Literal["upload", "webcam"] | None ) = None, height: int | str | None = None, width: int | str | None = None, label: str | I18nData | None = None, every: Timer | float | None = None, inputs: Component | Sequence[Component] | set[Component] | None = None, show_label: bool | None = None, container: bool = True, scale: int | None = None, min_width: int = 160, interactive: bool | None = None, visible: bool | Literal["hidden"] = True, elem_id: str | None = None, elem_classes: list[str] | str | None = None, render: bool = True, key: int | str | tuple[int | str, ...] | None = None, preserved_by_key: list[str] | str | None = "value", webcam_options: WebcamOptions | None = None, include_audio: bool | None = None, autoplay: bool = False, buttons: list[Literal["download", "share"] | Button] | None = None, loop: bool = False, streaming: bool = False, watermark: WatermarkOptions | None = None, subtitles: str | Path | list[dict[str, Any]] | None = None, playback_position: float = 0, ): """ Parameters: value: path or URL for the default value that Video component is going to take. Or can be callable, in which case the function will be called whenever the app loads to set the initial value of the component. format: the file extension with which to save video, such as 'avi' or 'mp4'. This parameter applies both when this component is used as an input to determine which file format to convert user-provided video to, and when this component is used as an output to determine the format of video returned to the user. If None, no file format conversion is done and the video is kept as is. Use 'mp4' to ensure browser playability. sources: list of sources permitted for video. "upload" creates a box where user can drop a video file, "webcam" allows user to record a video from their webcam. If None, defaults to both ["upload, "webcam"]. height: The height of the component, specified in pixels if a number is passed, or in CSS units if a string is passed. This has no effect on the preprocessed video file, but will affect the displayed video. width: The width of the component, specified in pixels if a number is passed, or in CSS units if a string is passed. This has no effect on the preprocessed video file, but will affect the displayed video. label: the label for this component. Appears above the component and is also used as the header if there are a table of examples for this component. If None and used in a `gr.Interface`, the label will be the name of the parameter this component is assigned to. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. inputs: components that are used as inputs to calculate `value` if `value` is a function (has no effect otherwise). `value` is recalculated any time the inputs change. show_label: if True, will display label. container: if True, will place the component in a container - providing some extra padding around the border. scale: relative size compared to adjacent Components. For example if Components A and B are in a Row, and A has scale=2, and B has scale=1, A will be twice as wide as B. Should be an integer. scale applies in Rows, and to top-level Components in Blocks where fill_height=True. min_width: minimum pixel width, will wrap if not sufficient screen space to satisfy this value. If a certain scale value results in this Component being narrower than min_width, the min_width parameter will be respected first. interactive: if True, will allow users to upload a video; if False, can only be used to display videos. If not provided, this is inferred based on whether the component is used as an input or output. visible: If False, component will be hidden. If "hidden", component will be visually hidden and not take up space in the layout but still exist in the DOM elem_id: an optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles. elem_classes: an optional list of strings that are assigned as the classes of this component in the HTML DOM. Can be used for targeting CSS styles. render: if False, component will not render be rendered in the Blocks context. Should be used if the intention is to assign event listeners now but render the component later. key: in a gr.render, Components with the same key across re-renders are treated as the same component, not a new component. Properties set in 'preserved_by_key' are not reset across a re-render. preserved_by_key: A list of parameters from this component's constructor. Inside a gr.render() function, if a component is re-rendered with the same key, these (and only these) parameters will be preserved in the UI (if they have been changed by the user or an event listener) instead of re-rendered based on the values provided during constructor. include_audio: whether the component should record/retain the audio track for a video. By default, audio is excluded for webcam videos and included for uploaded videos. autoplay: whether to automatically play the video when the component is used as an output. Note: browsers will not autoplay video files if the user has not interacted with the page yet. buttons: A list of buttons to show in the top right corner of the component. Valid options are "download", "share", or a gr.Button() instance. The "download" button allows the user to save the video to their device. The "share" button allows the user to share the video via Hugging Face Spaces Discussions. Custom gr.Button() instances will appear in the toolbar with their configured icon and/or label, and clicking them will trigger any .click() events registered on the button. By default, no buttons are shown if the component is interactive and both buttons are shown if the component is not interactive. loop: if True, the video will loop when it reaches the end and continue playing from the beginning. streaming: when used set as an output, takes video chunks yielded from the backend and combines them into one streaming video output. Each chunk should be a video file with a .ts extension using an h.264 encoding. Mp4 files are also accepted but they will be converted to h.264 encoding. watermark: A `gr.WatermarkOptions` instance that includes an image file and position to be used as a watermark on the video. The image is not scaled and is displayed on the provided position on the video. Valid formats for the image are: jpeg, png. webcam_options: A `gr.WebcamOptions` instance that allows developers to specify custom media constraints for the webcam stream. This parameter provides flexibility to control the video stream's properties, such as resolution and front or rear camera on mobile devices. See $demo/webcam_constraints subtitles: A subtitle file (srt, vtt, or json) for the video, or a list of subtitle dictionaries in the format [{"text": str, "timestamp": [start, end]}] where timestamps are in seconds. JSON files should contain an array of subtitle objects. playback_position: The starting playback position in seconds. This value is also updated as the video plays, reflecting the current playback position. """ valid_sources: list[Literal["upload", "webcam"]] = ["upload", "webcam"] if sources is None: self.sources = valid_sources elif isinstance(sources, str) and sources in valid_sources: self.sources = [sources] elif isinstance(sources, list) and all(s in valid_sources for s in sources): self.sources = sources else: raise ValueError( f"`sources` must be a list consisting of elements in {valid_sources}" ) for source in self.sources: if source not in valid_sources: raise ValueError( f"`sources` must a list consisting of elements in {valid_sources}" ) self.format = format self.autoplay = autoplay self.height = height self.width = width self.loop = loop self.webcam_options = ( webcam_options if webcam_options is not None else WebcamOptions() ) self.watermark = ( watermark if isinstance(watermark, WatermarkOptions) else WatermarkOptions() ) if isinstance(watermark, (str, Path)): self.watermark.watermark = watermark self.include_audio = ( include_audio if include_audio is not None else "upload" in self.sources ) self.buttons = set_default_buttons(buttons, ["download"]) self.streaming = streaming self.playback_position = playback_position self.subtitles = None if subtitles is not None: if isinstance(subtitles, list): self.subtitles = handle_file( self._process_json_subtitles(subtitles).path ) else: self.subtitles = self._format_subtitles(subtitles) super().__init__( label=label, every=every, inputs=inputs, show_label=show_label, container=container, scale=scale, min_width=min_width, interactive=interactive, visible=visible, elem_id=elem_id, elem_classes=elem_classes, render=render, key=key, preserved_by_key=preserved_by_key, value=value, ) self._value_description = "a string filepath to a video" @traced_sync("preprocess_video") def preprocess(self, payload: FileData | None) -> str | None: """ Parameters: payload: An instance of FileData containing the video file. Returns: Passes the uploaded video as a `str` filepath or URL whose extension can be modified by `format`. """ if payload is None: return None if not payload.path: raise ValueError("Payload path missing") file_name = Path(payload.path) uploaded_format = file_name.suffix.replace(".", "") needs_formatting = self.format is not None and uploaded_format != self.format flip = self.sources == ["webcam"] and self.webcam_options.mirror # TODO: Check other image extensions to see if they work. valid_watermark_extensions = [".png", ".jpg", ".jpeg"] if self.watermark.watermark is not None: if not isinstance(self.watermark.watermark, (str, Path)): raise ValueError( f"Provided watermark file not an expected file type. " f"Received: {self.watermark.watermark}" ) if Path(self.watermark.watermark).suffix not in valid_watermark_extensions: raise ValueError( f"Watermark file does not have a supported extension. " f"Expected one of {','.join(valid_watermark_extensions)}. " f"Received: {Path(self.watermark.watermark).suffix}." ) if needs_formatting or flip: format = f".{self.format if needs_formatting else uploaded_format}" output_options = ["-vf", "hflip", "-c:a", "copy"] if flip else [] output_options += ["-an"] if not self.include_audio else [] flip_suffix = "_flip" if flip else "" output_file_name = str( file_name.with_name(f"{file_name.stem}{flip_suffix}{format}") ) output_filepath = Path(output_file_name) if output_filepath.exists(): return str(output_filepath.resolve()) ff = FFmpeg( # type: ignore inputs={str(file_name): None}, outputs={output_file_name: output_options}, ) ff.run() return str(output_filepath.resolve()) elif not self.include_audio: output_file_name = str(file_name.with_name(f"muted_{file_name.name}")) if Path(output_file_name).exists(): return output_file_name ff = FFmpeg( # type: ignore inputs={str(file_name): None}, outputs={output_file_name: ["-an"]}, ) ff.run() return output_file_name else: return str(file_name) @traced_sync("postprocess_video") def postprocess(self, value: str | Path | None) -> FileData | None: """ Parameters: value: Expects one of either: - a {str} or {pathlib.Path} filepath to a video which is displayed - a {Tuple[str | pathlib.Path, str | pathlib.Path | None]} where the first element is a filepath to a video and the second element is an optional filepath to a subtitle file. Returns: FileData object containing the video file. """ if self.streaming: return value # type: ignore if value is None or value in ([None, None], (None, None)): return None if isinstance(value, (str, Path)): processed_video = self._format_video(value) return processed_video def _format_video(self, video: str | Path | None) -> FileData | None: """ Processes a video to ensure that it is in the correct format and adds a watermark if requested. """ if video is None: return None video = str(video) returned_format = video.split(".")[-1].lower() if self.format is None or returned_format == self.format: conversion_needed = False else: conversion_needed = True is_url = client_utils.is_http_url_like(video) # For cases where the video is a URL and does not need to be converted # to another format and have a watermark added, we can just return the URL if not self.watermark.watermark and (is_url and not conversion_needed): return FileData(path=video) # For cases where the video needs to be converted to another format # or have a watermark added. if is_url: video = processing_utils.save_url_to_cache( video, cache_dir=self.GRADIO_CACHE ) if ( processing_utils.ffmpeg_installed() and not processing_utils.video_is_playable(video) ): warnings.warn( "Video does not have browser-compatible container or codec. Converting to mp4." ) with trace_phase_sync("postprocess_video_convert_video_to_playable_mp4"): video = processing_utils.convert_video_to_playable_mp4(video) # Recalculate the format in case convert_video_to_playable_mp4 already made it the selected format returned_format = utils.get_extension_from_file_path_or_url(video).lower() if ( self.format is not None and returned_format != self.format ) or self.watermark.watermark: global_option_list = ["-y"] inputs_dict = {video: None} output_file_name = video[0 : video.rindex(".") + 1] if self.format is not None: output_file_name += self.format else: output_file_name += returned_format if self.watermark.watermark: inputs_dict[str(self.watermark.watermark)] = None pos = self.watermark.position margin = 5 if isinstance(pos, tuple): x, y = pos watermark_cmd = f"overlay={x}:{y}" elif pos == "top-left": watermark_cmd = f"overlay={margin}:{margin}" elif pos == "top-right": watermark_cmd = f"overlay=W-w-{margin}:{margin}" elif pos == "bottom-left": watermark_cmd = f"overlay={margin}:H-h-{margin}" elif pos == "bottom-right": watermark_cmd = f"overlay=W-w-{margin}:H-h-{margin}" else: watermark_cmd = "overlay=W-w-5:H-h-5" global_option_list += ["-filter_complex", watermark_cmd] output_file_name = ( Path(output_file_name).stem + "_watermarked" + Path(output_file_name).suffix ) ff = FFmpeg( # type: ignore inputs=inputs_dict, outputs={output_file_name: None}, global_options=global_option_list, ) ff.run() video = output_file_name return FileData(path=video, orig_name=Path(video).name) def _process_json_subtitles(self, subtitles: list[dict[str, Any]]) -> FileData: """Convert JSON subtitles to VTT format.""" def seconds_to_vtt_timestamp(seconds: float) -> str: """Convert seconds to VTT timestamp format (HH:MM:SS.mmm)""" hours = int(seconds // 3600) minutes = int((seconds % 3600) // 60) secs = seconds % 60 return f"{hours:02d}:{minutes:02d}:{secs:06.3f}" # Validate input for i, subtitle in enumerate(subtitles): if not isinstance(subtitle, dict): raise ValueError(f"Subtitle at index {i} must be a dictionary") if "text" not in subtitle: raise ValueError(f"Subtitle at index {i} missing required 'text' field") if "timestamp" not in subtitle: raise ValueError( f"Subtitle at index {i} missing required 'timestamp' field" ) if ( not isinstance(subtitle["timestamp"], (list, tuple)) or len(subtitle["timestamp"]) != 2 ): raise ValueError( f"Subtitle at index {i} 'timestamp' must be a list/tuple of [start, end]" ) # Create VTT file temp_file = tempfile.NamedTemporaryFile( delete=False, suffix=".vtt", dir=get_upload_folder(), mode="w", encoding="utf-8", ) try: temp_file.write("WEBVTT\n\n") for subtitle in subtitles: start_time = seconds_to_vtt_timestamp(subtitle["timestamp"][0]) end_time = seconds_to_vtt_timestamp(subtitle["timestamp"][1]) text = subtitle["text"] temp_file.write(f"{start_time} --> {end_time}\n") temp_file.write(f"{text}\n\n") temp_file.close() return FileData(path=str(temp_file.name)) except Exception as e: temp_file.close() raise ValueError(f"Error creating VTT file from JSON subtitles: {e}") from e def _format_subtitles(self, subtitle: str | Path | None) -> FileData | None: """ Convert subtitle format to VTT and process the video to ensure it meets the HTML5 requirements. """ def srt_to_vtt(srt_file_path, vtt_file_path): """Convert an SRT subtitle file to a VTT subtitle file""" with ( open(srt_file_path, encoding="utf-8") as srt_file, open(vtt_file_path, "w", encoding="utf-8") as vtt_file, ): vtt_file.write("WEBVTT\n\n") for subtitle_block in srt_file.read().strip().split("\n\n"): subtitle_lines = subtitle_block.split("\n") subtitle_timing = subtitle_lines[1].replace(",", ".") subtitle_text = "\n".join(subtitle_lines[2:]) vtt_file.write(f"{subtitle_timing} --> {subtitle_timing}\n") vtt_file.write(f"{subtitle_text}\n\n") file_path = Path(subtitle) # type: ignore if file_path.suffix.lower() == ".json": try: with open(file_path, encoding="utf-8") as f: json_data = json.load(f) if isinstance(json_data, list): return handle_file(self._process_json_subtitles(json_data).path) else: raise ValueError( "JSON subtitle file must contain a list of subtitle objects" ) from None except json.JSONDecodeError as e: raise ValueError(f"Invalid JSON format in subtitle file: {e}") from e except Exception as e: raise ValueError(f"Error reading JSON subtitle file: {e}") from e if subtitle is None: return None valid_extensions = (".srt", ".vtt", ".json") if Path(subtitle).suffix not in valid_extensions: raise ValueError( f"Invalid value for parameter `subtitle`: {subtitle}. Please choose a file with one of these extensions: {valid_extensions}" ) # HTML5 only support vtt format if Path(subtitle).suffix == ".srt": temp_file = tempfile.NamedTemporaryFile( delete=False, suffix=".vtt", dir=get_upload_folder() ) srt_to_vtt(subtitle, temp_file.name) subtitle = temp_file.name return handle_file(subtitle) def example_payload(self) -> Any: return handle_file( "https://github.com/gradio-app/gradio/raw/main/gradio/media_assets/videos/world.mp4" ) def example_value(self) -> Any: return "https://github.com/gradio-app/gradio/raw/main/gradio/media_assets/videos/world.mp4" @staticmethod def get_video_duration_ffprobe(filename: str): result = subprocess.run( [ "ffprobe", "-v", "quiet", "-print_format", "json", "-show_format", "-show_streams", filename, ], capture_output=True, check=True, ) data = json.loads(result.stdout) duration = None if "format" in data and "duration" in data["format"]: duration = float(data["format"]["duration"]) else: for stream in data.get("streams", []): if "duration" in stream: duration = float(stream["duration"]) break return duration @staticmethod async def async_convert_mp4_to_ts(mp4_file, ts_file): ff = FFmpeg( # type: ignore inputs={mp4_file: None}, outputs={ ts_file: "-c:v libx264 -c:a aac -f mpegts -bsf:v h264_mp4toannexb -bsf:a aac_adtstoasc" }, global_options=["-y"], ) command = ff.cmd.split(" ") process = await asyncio.create_subprocess_exec( *command, stdout=asyncio.subprocess.PIPE, # type: ignore stderr=asyncio.subprocess.PIPE, # type: ignore ) _, stderr = await process.communicate() if process.returncode != 0: error_message = stderr.decode().strip() raise RuntimeError(f"FFmpeg command failed: {error_message}") return ts_file async def combine_stream( self, stream: list[bytes], desired_output_format: str | None = None, # noqa: ARG002 only_file=False, ) -> FileData: """Combine video chunks into a single video file. Do not take desired_output_format into consideration as mp4 is a safe format for playing in browser. """ # Use an mp4 extension here so that the cached example # is playable in the browser output_file = tempfile.NamedTemporaryFile( delete=False, suffix=".mp4", dir=self.GRADIO_CACHE ) ts_files = [ processing_utils.save_bytes_to_cache( s, "video_chunk.ts", cache_dir=self.GRADIO_CACHE ) for s in stream ] command = [ "ffmpeg", "-i", f"concat:{'|'.join(ts_files)}", "-y", "-safe", "0", "-c", "copy", output_file.name, ] process = await asyncio.create_subprocess_exec( *command, stdout=asyncio.subprocess.PIPE, # type: ignore stderr=asyncio.subprocess.PIPE, # type: ignore ) _, stderr = await process.communicate() if process.returncode != 0: error_message = stderr.decode().strip() raise RuntimeError(f"FFmpeg command failed: {error_message}") video = FileData( path=output_file.name, is_stream=False, orig_name="video-stream.mp4", ) if only_file: return video return video async def stream_output( self, value: str | None, output_id: str, first_chunk: bool, # noqa: ARG002 ) -> tuple[MediaStreamChunk | None, dict]: output_file = { "video": { "path": output_id, "is_stream": True, # Need to set orig_name so that downloaded file has correct # extension "orig_name": "video-stream.mp4", "meta": {"_type": "gradio.FileData"}, } } if value is None: return None, output_file ts_file = value if not value.endswith(".ts"): if not value.endswith(".mp4"): raise RuntimeError( "Video must be in .mp4 or .ts format to be streamed as chunks", ) ts_file = value.replace(".mp4", ".ts") await self.async_convert_mp4_to_ts(value, ts_file) duration = self.get_video_duration_ffprobe(ts_file) if not duration: raise RuntimeError("Cannot determine video chunk duration") chunk: MediaStreamChunk = { "data": Path(ts_file).read_bytes(), "duration": duration, "extension": ".ts", } return chunk, output_file from typing import Callable, Literal, Sequence, Any, TYPE_CHECKING from gradio.blocks import Block if TYPE_CHECKING: from gradio.components import Timer from gradio.components.base import Component def change(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ... def clear(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ... def start_recording(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ... def stop_recording(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ... def stop(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ... def play(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ... def pause(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ... def end(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ... def upload(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ... def input(self, fn: Callable[..., Any] | None = None, inputs: Block | Sequence[Block] | set[Block] | None = None, outputs: Block | Sequence[Block] | None = None, api_name: str | None = None, scroll_to_output: bool = False, show_progress: Literal["full", "minimal", "hidden"] = "full", show_progress_on: Component | Sequence[Component] | None = None, queue: bool | None = None, batch: bool = False, max_batch_size: int = 4, preprocess: bool = True, postprocess: bool = True, cancels: dict[str, Any] | list[dict[str, Any]] | None = None, every: Timer | float | None = None, trigger_mode: Literal["once", "multiple", "always_last"] | None = None, js: str | Literal[True] | None = None, concurrency_limit: int | None | Literal["default"] = "default", concurrency_id: str | None = None, api_visibility: Literal["public", "private", "undocumented"] = "public", key: int | str | tuple[int | str, ...] | None = None, api_description: str | None | Literal[False] = None, validator: Callable[..., Any] | None = None, ) -> Dependency: """ Parameters: fn: the function to call when this event is triggered. Often a machine learning model's prediction function. Each parameter of the function corresponds to one input component, and the function should return a single value or a tuple of values, with each element in the tuple corresponding to one output component. inputs: list of gradio.components to use as inputs. If the function takes no inputs, this should be an empty list. outputs: list of gradio.components to use as outputs. If the function returns no outputs, this should be an empty list. api_name: defines how the endpoint appears in the API docs. Can be a string or None. If set to a string, the endpoint will be exposed in the API docs with the given name. If None (default), the name of the function will be used as the API endpoint. scroll_to_output: if True, will scroll to output component on completion show_progress: how to show the progress animation while event is running: "full" shows a spinner which covers the output component area as well as a runtime display in the upper right corner, "minimal" only shows the runtime display, "hidden" shows no progress animation at all show_progress_on: Component or list of components to show the progress animation on. If None, will show the progress animation on all of the output components. queue: if True, will place the request on the queue, if the queue has been enabled. If False, will not put this event on the queue, even if the queue has been enabled. If None, will use the queue setting of the gradio app. batch: if True, then the function should process a batch of inputs, meaning that it should accept a list of input values for each parameter. The lists should be of equal length (and be up to length `max_batch_size`). The function is then *required* to return a tuple of lists (even if there is only 1 output component), with each list in the tuple corresponding to one output component. max_batch_size: maximum number of inputs to batch together if this is called from the queue (only relevant if batch=True) preprocess: if False, will not run preprocessing of component data before running 'fn' (e.g. leaving it as a base64 string if this method is called with the `Image` component). postprocess: if False, will not run postprocessing of component data before returning 'fn' output to the browser. cancels: a list of other events to cancel when this listener is triggered. For example, setting cancels=[click_event] will cancel the click_event, where click_event is the return value of another components .click method. Functions that have not yet run (or generators that are iterating) will be cancelled, but functions that are currently running will be allowed to finish. every: continuously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer. trigger_mode: if "once" (default for all events except `.change()`) would not allow any submissions while an event is pending. If set to "multiple", unlimited submissions are allowed while pending, and "always_last" (default for `.change()` and `.key_up()` events) would allow a second submission after the pending event is complete. js: optional frontend js method to run before running 'fn'. Input arguments for js method are values of 'inputs' and 'outputs', return should be a list of values for output components. concurrency_limit: if set, this is the maximum number of this event that can be running simultaneously. Can be set to None to mean no concurrency_limit (any number of this event can be running simultaneously). Set to "default" to use the default concurrency limit (defined by the `default_concurrency_limit` parameter in `Blocks.queue()`, which itself is 1 by default). concurrency_id: if set, this is the id of the concurrency group. Events with the same concurrency_id will be limited by the lowest set concurrency_limit. api_visibility: controls the visibility and accessibility of this endpoint. Can be "public" (shown in API docs and callable by clients), "private" (hidden from API docs and not callable by the Gradio client libraries), or "undocumented" (hidden from API docs but callable by clients and via gr.load). If fn is None, api_visibility will automatically be set to "private". key: A unique key for this event listener to be used in @gr.render(). If set, this value identifies an event as identical across re-renders when the key is identical. api_description: Description of the API endpoint. Can be a string, None, or False. If set to a string, the endpoint will be exposed in the API docs with the given description. If None, the function's docstring will be used as the API endpoint description. If False, then no description will be displayed in the API docs. validator: Optional validation function to run before the main function. If provided, this function will be executed first with queue=False, and only if it completes successfully will the main function be called. The validator receives the same inputs as the main function. """ ...