Implement Audio Sharing for Selected Text #992
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,206 @@ | ||
| <!-- | ||
| @component | ||
| A component providing a dropdown where you can choose to download audio or video for selected text | ||
| --> | ||
|
|
||
| <script lang="ts"> | ||
| import { scriptureConfig } from '$assets/config'; | ||
| import { getBook, logShareContent } from '$lib/data/analytics'; | ||
| import { getAudioSourceInfo } from '$lib/data/audio'; | ||
| import { shareAudio, shareText } from '$lib/data/share'; | ||
| import { | ||
| convertStyle, | ||
| getPositioningCSS, | ||
| modal, | ||
| ModalType, | ||
| refs, | ||
| s, | ||
| selectedVerses, | ||
| t | ||
| } from '$lib/data/stores'; | ||
| import { AudioIcon } from '$lib/icons'; | ||
| import FormatAlignLeftIcon from '$lib/icons/image/FormatAlignLeftIcon.svelte'; | ||
| import { | ||
| AudioBufferSource, | ||
| BufferTarget, | ||
| canEncodeAudio, | ||
| Mp4OutputFormat, | ||
| Output, | ||
| WavOutputFormat, | ||
| WebMOutputFormat | ||
| } from 'mediabunny'; | ||
| import type { AudioEncodingConfig } from 'mediabunny'; | ||
| import Modal from './Modal.svelte'; | ||
|
|
||
| let { vertOffset = '2rem' } = $props(); | ||
| async function shareSelectedText() { | ||
| const book = $selectedVerses[0].book; | ||
| const reference = selectedVerses.getCompositeReference(); | ||
| const text = await selectedVerses.getCompositeText(); | ||
| const bookCol = $selectedVerses[0].collection; | ||
| const fullBook = getBook({ collection: bookCol, book: book }); | ||
| const bookAbbrev = fullBook?.abbreviation ?? fullBook?.name; | ||
| const copyShareMessage = scriptureConfig.bookCollections?.find( | ||
| (x) => x.id === bookCol | ||
| )?.copyShareMessage; | ||
| shareText( | ||
| scriptureConfig.name ?? '', | ||
| text + '\n' + reference + (copyShareMessage ? '\n' + copyShareMessage : ''), | ||
| book + '.txt' | ||
| ); | ||
| logShareContent('Text', bookCol, bookAbbrev ?? '', reference); | ||
| } | ||
| async function shareAudioFile() { | ||
| const reference = selectedVerses.getCompositeReference(); | ||
| const audioCtx = new AudioContext(); | ||
| try { | ||
| const audioConfig: AudioEncodingConfig = await pickSupportedAudioConfig(); | ||
| const outputFormat = | ||
| audioConfig.codec === 'aac' | ||
| ? new Mp4OutputFormat() | ||
| : audioConfig.codec === 'opus' | ||
| ? new WebMOutputFormat() | ||
| : new WavOutputFormat(); | ||
| const output = new Output({ | ||
| format: outputFormat, | ||
| target: new BufferTarget() | ||
| }); | ||
|
|
||
| const audioSourceInfo = await getAudioSourceInfo({ | ||
| collection: $refs.collection, | ||
| book: $refs.book, | ||
| chapter: $refs.chapter | ||
| }); | ||
| if (!audioSourceInfo?.source) { | ||
| throw new Error('No audio source available for this chapter'); | ||
| } | ||
|
|
||
| const audioSource = new AudioBufferSource(audioConfig); | ||
| output.addAudioTrack(audioSource); | ||
| await output.start(); | ||
|
|
||
| const audioBlob = await fetch(audioSourceInfo?.source).then((r) => r.blob()); | ||
| const audioBuffer = await audioCtx.decodeAudioData(await audioBlob.arrayBuffer()); | ||
|
|
||
| const sampleRate = audioBuffer.sampleRate; | ||
|
|
||
| for (let i = 0; i < $selectedVerses.length; i++) { | ||
| let startFrame = 0; | ||
| let endFrame = 0; | ||
| let foundVerseTiming = false; | ||
| for (var j = 0; j < (audioSourceInfo?.timing?.length || 0); j++) { | ||
| const timing = audioSourceInfo?.timing?.[j]; | ||
| const verse = timing?.tag?.replace(/\D/g, ''); | ||
| if (verse === $selectedVerses[i].verse) { | ||
| if (!foundVerseTiming) { | ||
| foundVerseTiming = true; | ||
| startFrame = Math.floor((timing?.starttime || 0) * sampleRate); | ||
| endFrame = Math.floor((timing?.endtime || 0) * sampleRate); | ||
| } else { | ||
| endFrame = Math.floor((timing?.endtime || 0) * sampleRate); | ||
| } | ||
| } | ||
| } | ||
| if (!foundVerseTiming || endFrame <= startFrame) { | ||
| console.warn(`No timing found for verse ${$selectedVerses[i].verse}, skipping`); | ||
| continue; | ||
| } | ||
| const trimmedBuffer = audioCtx.createBuffer( | ||
| audioBuffer.numberOfChannels, | ||
| endFrame - startFrame, | ||
| sampleRate | ||
| ); | ||
|
|
||
| for (let ch = 0; ch < audioBuffer.numberOfChannels; ch++) { | ||
| const src = audioBuffer.getChannelData(ch); | ||
| const dst = trimmedBuffer.getChannelData(ch); | ||
| dst.set(src.slice(startFrame, endFrame)); | ||
| } | ||
|
|
||
| await audioSource.add(trimmedBuffer); | ||
| } | ||
|
TheNonPirate marked this conversation as resolved.
|
||
| await output.finalize(); | ||
|
|
||
| await shareAudio( | ||
| reference, | ||
| await selectedVerses.getCompositeText(), | ||
| reference.replace(/[\\/:*?"<>|]/g, '_') + outputFormat.fileExtension, | ||
| new Blob([output.target.buffer as BlobPart], { | ||
| type: outputFormat.mimeType | ||
| }), | ||
| outputFormat.mimeType | ||
| ); | ||
|
TheNonPirate marked this conversation as resolved.
|
||
| } catch (error) { | ||
| modal.open(ModalType.AudioAlert, 'Audio_Download_Error'); | ||
| console.error('Error generating audio export:', error); | ||
| } finally { | ||
| await audioCtx?.close(); | ||
| } | ||
|
FyreByrd marked this conversation as resolved.
|
||
| } | ||
| async function pickSupportedAudioConfig() { | ||
| const candidates: AudioEncodingConfig[] = [ | ||
| { codec: 'aac', bitrate: 128000 }, | ||
| { codec: 'aac', bitrate: 96000 }, | ||
| { codec: 'aac', bitrate: 64000 }, | ||
| { | ||
| codec: 'opus', | ||
| bitrate: 96000 | ||
| }, | ||
| { codec: 'pcm-f32' }, | ||
| { codec: 'pcm-s24' }, | ||
| { codec: 'pcm-s16' } | ||
| ]; | ||
|
|
||
| for (const cfg of candidates) { | ||
| if (await canEncodeAudio(cfg.codec, cfg)) { | ||
| return cfg; | ||
| } | ||
| } | ||
|
|
||
| throw new Error('No supported audio configuration found.'); | ||
| } //This is used to determine a supported audio configuration. It first tries AAC, but then falls back to opus if AAC isn't supported. This is a duplicate of the function with the same name in VerseOnImage.svelte, so maybe it should be moved to somewhere that exports it for any place that needs it to use it? | ||
| let modalId = 'shareSelector'; | ||
| let modalThis: Modal; | ||
| export function showModal(shareTextOnly: boolean) { | ||
| if (shareTextOnly) { | ||
| shareSelectedText(); | ||
| } else { | ||
| modalThis.showModal(); | ||
| } | ||
| } | ||
| const positioningCSS = $derived(getPositioningCSS(vertOffset, 'bottom')); | ||
| const iconColor = $derived($s?.['ui.bar.audio.hint.text']?.['color'] || 'black'); | ||
| </script> | ||
|
|
||
| <!-- svelte-ignore a11y_consider_explicit_label --> | ||
| <Modal | ||
| bind:this={modalThis} | ||
| id={modalId} | ||
| styling="box-shadow:none; padding:0; width:auto; {positioningCSS}" | ||
| > | ||
|
TheNonPirate marked this conversation as resolved.
|
||
| <div class="grid message" id="container"> | ||
| <button | ||
| class="dy-btn flex items-center justify-center rounded-none border-transparent" | ||
| style={convertStyle($s?.['ui.bar.audio.hint.text'])} | ||
| onclick={() => shareSelectedText()} | ||
| > | ||
| <FormatAlignLeftIcon color={iconColor} /> | ||
| {$t['Share_Text']} | ||
| </button> | ||
| <button | ||
| class="dy-btn flex items-center justify-center rounded-none border-transparent" | ||
| style={convertStyle($s?.['ui.bar.audio.hint.text'])} | ||
| onclick={() => shareAudioFile()} | ||
| > | ||
| <AudioIcon.Volume color={iconColor} /> | ||
| {$t['Share_Audio']} | ||
| </button> | ||
| <!--<button | ||
|
Collaborator
There was a problem hiding this comment. Why is this commented out?
Contributor
Author
There was a problem hiding this comment. It's commented out because video download has not yet been implemented, but that is where the button would go if it was implemented. |
||
| class="dy-btn flex items-center justify-center rounded-none" | ||
| onclick={() => downloadVideo()} | ||
| > | ||
| <VideoIcon /> | ||
| {$t['Share_Video']} | ||
| </button>--> | ||
| </div> | ||
| </Modal> | ||
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