Init commit

packages/ffmpeg/src/ffmpeg-container.ts

@@ -0,0 +1,45 @@
+import { Readable, Writable } from 'stream'
+import { FFmpegCommandWrapper, FFmpegCommandWrapperOptions } from './ffmpeg-command-wrapper.js'
+
+export class FFmpegContainer {
+  private readonly commandWrapper: FFmpegCommandWrapper
+
+  constructor (options: FFmpegCommandWrapperOptions) {
+    this.commandWrapper = new FFmpegCommandWrapper(options)
+  }
+
+  mergeInputs (options: {
+    inputs: (Readable | string)[]
+    output: Writable
+    logError: boolean
+
+    coverPath?: string
+  }) {
+    const { inputs, output, logError, coverPath } = options
+
+    const command = this.commandWrapper.buildCommand(inputs)
+
+    for (let i = 0; i < inputs.length; i++) {
+      command.outputOption('-map ' + i)
+    }
+
+    if (coverPath) {
+      command.addInput(coverPath)
+      command.outputOption('-map ' + inputs.length)
+    }
+
+    command.outputOption('-c copy')
+      .outputOption('-movflags frag_every_frame+empty_moov')
+      .outputOption('-min_frag_duration 5M') // 5 seconds
+      .format('mp4')
+      .output(output)
+
+    return this.commandWrapper.runCommand({ silent: !logError })
+  }
+
+  forceKill () {
+    if (!this.commandWrapper) return
+
+    this.commandWrapper.getCommand().kill('SIGKILL')
+  }
+}