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feat: add video-to-audio extraction support #9

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3 changes: 2 additions & 1 deletion electron/converters/audio-converter.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -136,12 +136,13 @@ export async function convertAudio(options: AudioConvertOptions): Promise<Conver
}
}

// Execute FFmpeg conversion
// Execute FFmpeg conversion (audioOnly ensures video sources are stripped to audio)
const result = await executeFFmpeg({
inputPath: sourcePath,
outputPath,
format: targetFormat,
quality,
audioOnly: true,
onProgress,
metadata: options.metadata,
})
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6 changes: 4 additions & 2 deletions electron/converters/utils/ffmpeg-wrapper.ts
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Expand Up @@ -25,6 +25,7 @@ export interface FFmpegConvertOptions {
outputPath: string
format: string
quality: number // 1-100
audioOnly?: boolean // Extract audio only
onProgress?: (percent: number) => void
metadata?: Record<string, string> // Custom metadata
}
Expand Down Expand Up @@ -252,8 +253,9 @@ export async function executeFFmpeg(options: FFmpegConvertOptions): Promise<FFmp
const mediaInfo = await probeMediaFile(options.inputPath)
const totalDuration = mediaInfo?.duration || 0

// Determine if this is a video or audio conversion
const isVideo = !!(mediaInfo?.videoCodec)
// Determine if this is a video or audio conversion.
// audioOnly forces audio-only args even when source has a video stream.
const isVideo = !!(mediaInfo?.videoCodec) && !options.audioOnly

const args = buildFFmpegArgs({
inputPath: options.inputPath,
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21 changes: 21 additions & 0 deletions electron/main.ts
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Expand Up @@ -416,6 +416,27 @@ ipcMain.handle('convert-files', async (_event, payload: ConvertPayload) => {
currentOperation: 'Finalizing...',
startTime,
})
} else if (category === 'video' && isAudioFormat(file.targetFormat)) {
// Video → audio extraction (e.g. MP4 → MP3)
result = await convertAudio({
sourcePath: file.sourcePath,
outputDir: outputDir,
targetFormat: file.targetFormat,
quality,
overwriteBehavior,
onProgress: (percent) => {
const elapsed = (Date.now() - startTime) / 1000
const eta = percent > 0 ? Math.round((elapsed / percent) * (100 - percent)) : 0
mainWindow?.webContents.send('conversion-progress', {
fileId: file.fileId,
progress: percent,
status: 'converting',
currentOperation: 'Extracting audio...',
eta,
startTime,
})
},
})
} else if (category === 'video' && isVideoFormat(file.sourceExt)) {
// Video conversion with progress tracking
result = await convertVideo({
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16 changes: 8 additions & 8 deletions src/config/formats.ts
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Expand Up @@ -177,49 +177,49 @@ export const FORMAT_MAP: Record<string, FormatInfo> = {
mp4: {
category: 'video',
label: 'MP4',
targets: ['mkv', 'avi', 'mov', 'webm', 'gif'],
targets: ['mkv', 'avi', 'mov', 'webm', 'gif', 'mp3', 'aac', 'wav', 'ogg', 'flac', 'm4a'],
description: 'MPEG-4 Part 14 - most widely supported video format'
},
mkv: {
category: 'video',
label: 'MKV',
targets: ['mp4', 'avi', 'mov', 'webm'],
targets: ['mp4', 'avi', 'mov', 'webm', 'mp3', 'aac', 'wav', 'ogg', 'flac', 'm4a'],
description: 'Matroska Video - open container format, supports multiple tracks'
},
avi: {
category: 'video',
label: 'AVI',
targets: ['mp4', 'mkv', 'mov', 'webm'],
targets: ['mp4', 'mkv', 'mov', 'webm', 'mp3', 'aac', 'wav', 'ogg', 'flac', 'm4a'],
description: 'Audio Video Interleave - legacy Windows format'
},
mov: {
category: 'video',
label: 'MOV',
targets: ['mp4', 'mkv', 'avi', 'webm'],
targets: ['mp4', 'mkv', 'avi', 'webm', 'mp3', 'aac', 'wav', 'ogg', 'flac', 'm4a'],
description: 'QuickTime Movie - Apple video format'
},
webm: {
category: 'video',
label: 'WebM',
targets: ['mp4', 'mkv', 'avi', 'mov'],
targets: ['mp4', 'mkv', 'avi', 'mov', 'mp3', 'aac', 'wav', 'ogg', 'flac', 'm4a'],
description: 'Web Media - open format optimized for web streaming'
},
'3gp': {
category: 'video',
label: '3GP',
targets: ['mp4', 'mkv', 'avi'],
targets: ['mp4', 'mkv', 'avi', 'mp3', 'aac', 'wav'],
description: '3rd Generation Partnership Project - mobile video format'
},
flv: {
category: 'video',
label: 'FLV',
targets: ['mp4', 'mkv', 'avi', 'webm'],
targets: ['mp4', 'mkv', 'avi', 'webm', 'mp3', 'aac', 'wav', 'ogg', 'flac', 'm4a'],
description: 'Flash Video - legacy web video format'
},
wmv: {
category: 'video',
label: 'WMV',
targets: ['mp4', 'mkv', 'avi', 'webm'],
targets: ['mp4', 'mkv', 'avi', 'webm', 'mp3', 'aac', 'wav', 'ogg', 'flac', 'm4a'],
description: 'Windows Media Video - Microsoft streaming format'
},

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