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This commit is contained in:
Manav Rathi 2024-04-20 20:41:38 +05:30
parent c33b231885
commit dd2c58d7a2
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1 changed files with 32 additions and 39 deletions
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71
web/apps/photos/src/services/ffmpeg.ts
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@ -14,10 +14,9 @@ export async function generateVideoThumbnail(
): Promise<File | ElectronFile> {
try {
let seekTime = 1;
const ffmpegClient = await ffmpegFactory.getFFmpegClient();
while (seekTime >= 0) {
try {
return await ffmpegClient.run(
return await ffmpegExec(
[
FFMPEG_PLACEHOLDER,
"-i",
@ -49,12 +48,11 @@ export async function generateVideoThumbnail(
/** Called during upload */
export async function extractVideoMetadata(file: File | ElectronFile) {
try {
const ffmpegClient = await ffmpegFactory.getFFmpegClient();
// https://stackoverflow.com/questions/9464617/retrieving-and-saving-media-metadata-using-ffmpeg
// -c [short for codex] copy[(stream_specifier)[ffmpeg.org/ffmpeg.html#Stream-specifiers]] => copies all the stream without re-encoding
// -map_metadata [http://ffmpeg.org/ffmpeg.html#Advanced-options search for map_metadata] => copies all stream metadata to the out
// -f ffmetadata [https://ffmpeg.org/ffmpeg-formats.html#Metadata-1] => dump metadata from media files into a simple UTF-8-encoded INI-like text file
const metadata = await ffmpegClient.run(
const metadata = await ffmpegExec(
[
FFMPEG_PLACEHOLDER,
"-i",
@ -82,8 +80,7 @@ export async function extractVideoMetadata(file: File | ElectronFile) {
/** Called when viewing a file */
export async function convertToMP4(file: File) {
try {
const ffmpegClient = await ffmpegFactory.getFFmpegClient();
return await ffmpegClient.run(
return await ffmpegExec(
[
FFMPEG_PLACEHOLDER,
"-i",
@ -102,37 +99,33 @@ export async function convertToMP4(file: File) {
}
}
interface IFFmpeg {
run: (
cmd: string[],
inputFile: File | ElectronFile,
outputFilename: string,
dontTimeout?: boolean,
) => Promise<File | ElectronFile>;
}
class FFmpegFactory {
private client: IFFmpeg;
async getFFmpegClient() {
if (!this.client) {
const electron = globalThis.electron;
if (electron) {
this.client = {
run(cmd, inputFile, outputFilename, dontTimeout) {
return electron.runFFmpegCmd(
cmd,
inputFile,
outputFilename,
dontTimeout,
);
},
};
} else {
this.client = await ComlinkFFmpegWorker.getInstance();
}
}
return this.client;
/**
* Run the given FFMPEG command.
*
* If we're running in the context of our desktop app, use the FFMPEG binary we
* bundle with our desktop app to run the command. Otherwise fallback to the
* WASM ffmpeg we link to from our web app.
*
* As a rough ballpark, the native FFMPEG integration in the desktop app is
* 10-20x faster than the WASM one currently. See: [Note: FFMPEG in Electron].
*/
const ffmpegExec = async (
cmd: string[],
inputFile: File | ElectronFile,
outputFilename: string,
dontTimeout?: boolean,
): Promise<File | ElectronFile> => {
const electron = globalThis.electron;
if (electron) {
return electron.runFFmpegCmd(
cmd,
inputFile,
outputFilename,
dontTimeout,
);
} else {
return ComlinkFFmpegWorker.getInstance().then((worker) =>
worker.run(cmd, inputFile, outputFilename, dontTimeout),
);
}
}
const ffmpegFactory = new FFmpegFactory();
};