Open audio/image input stream only when queue is ready

.changeset/easy-files-serve.md

@@ -0,0 +1,10 @@
+---
+"@gradio/audio": minor
+"@gradio/client": minor
+"@gradio/core": minor
+"@gradio/icons": minor
+"@gradio/image": minor
+"gradio": minor
+---
+
+feat:Open audio/image input stream only when queue is ready

client/js/src/helpers/api_info.ts

@@ -247,6 +247,7 @@ export function handle_message(
 		| "unexpected_error";
 	data?: any;
 	status?: Status;
+	original_msg?: string;
 } {
 	const queue = true;
 	switch (data.msg) {
@@ -373,7 +374,8 @@ export function handle_message(
 					position: 0,
 					success: data.success,
 					eta: data.eta
-				}
+				},
+				original_msg: "process_starts"
 			};
 	}
 

client/js/src/test/api_info.test.ts

@@ -238,6 +238,7 @@ describe("handle_message", () => {
 		const result = handle_message(data, last_status);
 		expect(result).toEqual({
 			type: "update",
+			original_msg: "process_starts",
 			status: {
 				queue: true,
 				stage: "pending",

client/js/src/types.ts

@@ -363,6 +363,7 @@ export interface StatusMessage extends Status {
 	type: "status";
 	endpoint: string;
 	fn_index: number;
+	original_msg?: string;
 }
 
 export interface PayloadMessage extends Payload {

client/js/src/utils/submit.ts

@@ -598,7 +598,7 @@ export function submit(
 							event_id_final = event_id;
 							let callback = async function (_data: object): Promise<void> {
 								try {
-									const { type, status, data } = handle_message(
+									const { type, status, data, original_msg } = handle_message(
 										_data,
 										last_status[fn_index]
 									);
@@ -614,6 +614,7 @@ export function submit(
 											endpoint: _endpoint,
 											fn_index,
 											time: new Date(),
+											original_msg: original_msg,
 											...status
 										});
 									} else if (type === "complete") {

js/audio/Index.svelte

@@ -41,7 +41,15 @@
 	export let streaming: boolean;
 	export let stream_every: number;
 
-	export let close_stream: () => void;
+	let stream_state = "closed";
+	let _modify_stream: (state: "open" | "closed" | "waiting") => void;
+	export function modify_stream_state(
+		state: "open" | "closed" | "waiting"
+	): void {
+		stream_state = state;
+		_modify_stream(state);
+	}
+	export const get_stream_state: () => void = () => stream_state;
 	export let set_time_limit: (time: number) => void;
 	export let gradio: Gradio<{
 		input: never;
@@ -245,7 +253,7 @@
 			{waveform_options}
 			{trim_region_settings}
 			{stream_every}
-			bind:close_stream
+			bind:modify_stream={_modify_stream}
 			bind:set_time_limit
 			upload={gradio.client.upload}
 			stream_handler={gradio.client.stream}

js/audio/interactive/InteractiveAudio.svelte

@@ -41,10 +41,21 @@
 	export let stream_every: number;
 
 	let time_limit: number | null = null;
+	let stream_state: "open" | "waiting" | "closed" = "closed";
 
-	export const close_stream: () => void = () => {
-		time_limit = null;
+	export const modify_stream: (state: "open" | "closed" | "waiting") => void = (
+		state: "open" | "closed" | "waiting"
+	) => {
+		if (state === "closed") {
+			time_limit = null;
+			stream_state = "closed";
+		} else if (state === "waiting") {
+			stream_state = "waiting";
+		} else {
+			stream_state = "open";
+		}
 	};
+
 	export const set_time_limit = (time: number): void => {
 		if (recording) time_limit = time;
 	};
@@ -60,6 +71,7 @@
 	let pending_stream: Uint8Array[] = [];
 	let submit_pending_stream_on_pending_end = false;
 	let inited = false;
+	let stream_open = false;
 
 	const NUM_HEADER_BYTES = 44;
 	let audio_chunks: Blob[] = [];
@@ -167,6 +179,7 @@
 			pending_stream.push(payload);
 		} else {
 			let blobParts = [header].concat(pending_stream, [payload]);
+			if (!recording || stream_state === "waiting") return;
 			dispatch_blob(blobParts, "stream");
 			pending_stream = [];
 		}
@@ -240,6 +253,7 @@
 					{i18n}
 					{waveform_settings}
 					{waveform_options}
+					waiting={stream_state === "waiting"}
 				/>
 			{:else}
 				<AudioRecorder

js/audio/streaming/StreamAudio.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
 	import { onMount } from "svelte";
 	import type { I18nFormatter } from "@gradio/utils";
+	import { Spinner } from "@gradio/icons";
 	import WaveSurfer from "wavesurfer.js";
 	import RecordPlugin from "wavesurfer.js/dist/plugins/record.js";
 	import type { WaveformOptions } from "../shared/types";
@@ -15,6 +16,7 @@
 	export let waveform_options: WaveformOptions = {
 		show_recording_waveform: true
 	};
+	export let waiting = false;
 
 	let micWaveform: WaveSurfer;
 	let waveformRecord: RecordPlugin;
@@ -48,7 +50,7 @@
 		/>
 	{/if}
 	<div class="controls">
-		{#if recording}
+		{#if recording && !waiting}
 			<button
 				class={paused_recording ? "stop-button-paused" : "stop-button"}
 				on:click={() => {
@@ -62,6 +64,18 @@
 				</span>
 				{paused_recording ? i18n("audio.pause") : i18n("audio.stop")}
 			</button>
+		{:else if recording && waiting}
+			<button
+				class="spinner-button"
+				on:click={() => {
+					stop();
+				}}
+			>
+				<div class="icon">
+					<Spinner />
+				</div>
+				{i18n("audio.waiting")}
+			</button>
 		{:else}
 			<button
 				class="record-button"
@@ -95,6 +109,13 @@
 		margin: var(--spacing-xl);
 	}
 
+	.icon {
+		width: var(--size-4);
+		height: var(--size-4);
+		fill: var(--primary-600);
+		stroke: var(--primary-600);
+	}
+
 	.stop-button-paused {
 		display: none;
 		height: var(--size-8);
@@ -136,6 +157,18 @@
 		display: flex;
 	}
 
+	.spinner-button {
+		height: var(--size-8);
+		width: var(--size-24);
+		background-color: var(--block-background-fill);
+		border-radius: var(--radius-3xl);
+		align-items: center;
+		border: 1px solid var(--primary-600);
+		margin: 0 var(--spacing-xl);
+		display: flex;
+		justify-content: space-evenly;
+	}
+
 	.record-button::before {
 		content: "";
 		height: var(--size-4);

js/core/src/Blocks.svelte

@@ -51,7 +51,8 @@
 		targets,
 		update_value,
 		get_data,
-		close_stream,
+		modify_stream,
+		get_stream_state,
 		set_time_limit,
 		loading_status,
 		scheduled_updates,
@@ -280,13 +281,25 @@
 
 			let submission: ReturnType<typeof app.submit>;
 			app.set_current_payload(payload);
-			if (streaming && submit_map.has(dep_index)) {
-				await app.post_data(
-					// @ts-ignore
-					`${app.config.root}/stream/${submit_map.get(dep_index).event_id()}`,
-					{ ...payload, session_hash: app.session_hash }
-				);
-				return;
+			if (streaming) {
+				if (!submit_map.has(dep_index)) {
+					dep.inputs.forEach((id) => modify_stream(id, "waiting"));
+				} else if (
+					submit_map.has(dep_index) &&
+					dep.inputs.some((id) => get_stream_state(id) === "waiting")
+				) {
+					return;
+				} else if (
+					submit_map.has(dep_index) &&
+					dep.inputs.some((id) => get_stream_state(id) === "open")
+				) {
+					await app.post_data(
+						// @ts-ignore
+						`${app.config.root}/stream/${submit_map.get(dep_index).event_id()}`,
+						{ ...payload, session_hash: app.session_hash }
+					);
+					return;
+				}
 			}
 			try {
 				submission = app.submit(
@@ -371,13 +384,29 @@
 				];
 			}
 
+			function open_stream_events(
+				status: StatusMessage,
+				id: number,
+				dep: Dependency
+			): void {
+				if (
+					status.original_msg === "process_starts" &&
+					dep.connection === "stream"
+				) {
+					modify_stream(id, "open");
+				}
+			}
+
 			function handle_status_update(message: StatusMessage): void {
 				const { fn_index, ...status } = message;
 				if (status.stage === "streaming" && status.time_limit) {
 					dep.inputs.forEach((id) => {
 						set_time_limit(id, status.time_limit);
 					});
 				}
+				dep.inputs.forEach((id) => {
+					open_stream_events(message, id, dep);
+				});
 				//@ts-ignore
 				loading_status.update({
 					...status,
@@ -428,7 +457,7 @@
 						}
 					});
 					dep.inputs.forEach((id) => {
-						close_stream(id);
+						modify_stream(id, "closed");
 					});
 					submit_map.delete(dep_index);
 				}

js/core/src/init.ts

@@ -28,7 +28,8 @@ export function create_components(): {
 	targets: Writable<TargetMap>;
 	update_value: (updates: UpdateTransaction[]) => void;
 	get_data: (id: number) => any | Promise<any>;
-	close_stream: (id: number) => void;
+	modify_stream: (id: number, state: "open" | "waiting" | "closed") => void;
+	get_stream_state: (id: number) => "open" | "waiting" | "closed" | "not_set";
 	set_time_limit: (id: number, time_limit: number | undefined) => void;
 	loading_status: ReturnType<typeof create_loading_status_store>;
 	scheduled_updates: Writable<boolean>;
@@ -347,13 +348,25 @@ export function create_components(): {
 		return comp.props.value;
 	}
 
-	function close_stream(id: number): void {
+	function modify_stream(
+		id: number,
+		state: "open" | "closed" | "waiting"
+	): void {
 		const comp = _component_map.get(id);
-		if (comp && comp.instance.close_stream) {
-			comp.instance.close_stream();
+		if (comp && comp.instance.modify_stream_state) {
+			comp.instance.modify_stream_state(state);
 		}
 	}
 
+	function get_stream_state(
+		id: number
+	): "open" | "closed" | "waiting" | "not_set" {
+		const comp = _component_map.get(id);
+		if (comp && comp.instance.get_stream_state)
+			return comp.instance.get_stream_state();
+		return "not_set";
+	}
+
 	function set_time_limit(id: number, time_limit: number | undefined): void {
 		const comp = _component_map.get(id);
 		if (comp && comp.instance.set_time_limit) {
@@ -366,7 +379,8 @@ export function create_components(): {
 		targets: target_map,
 		update_value,
 		get_data,
-		close_stream,
+		modify_stream,
+		get_stream_state,
 		set_time_limit,
 		loading_status,
 		scheduled_updates: update_scheduled_store,

js/core/src/lang/en.json

@@ -16,7 +16,8 @@
 		"record": "Record",
 		"no_microphone": "No microphone found",
 		"pause": "Pause",
-		"play": "Play"
+		"play": "Play",
+		"waiting": "Waiting"
 	},
 	"blocks": {
 		"connection_can_break": "On mobile, the connection can break if this tab is unfocused or the device sleeps, losing your position in queue.",

js/core/src/lang/zh-CN.json

@@ -16,7 +16,8 @@
 		"record": "录制",
 		"no_microphone": "找不到麦克风",
 		"pause": "暂停",
-		"play": "播放"
+		"play": "播放",
+		"waiting": "等待"
 	},
 	"blocks": {
 		"connection_can_break": "在移动设备上，如果此标签页失去焦点或设备休眠，连接可能会中断，导致您在队列中失去位置。",