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Add option to render recording locally using "maestro record --local" (…
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30 changes: 30 additions & 0 deletions
30
maestro-cli/src/main/java/maestro/cli/graphics/AWTUtils.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package maestro.cli.graphics | ||
|
|
||
| import org.jcodec.api.FrameGrab | ||
| import org.jcodec.api.awt.AWTSequenceEncoder | ||
| import org.jcodec.common.io.NIOUtils | ||
| import java.awt.Graphics2D | ||
| import java.io.File | ||
|
|
||
| fun Graphics2D.use(block: (g: Graphics2D) -> Unit) { | ||
| try { | ||
| block(this) | ||
| } finally { | ||
| dispose() | ||
| } | ||
| } | ||
|
|
||
| fun AWTSequenceEncoder.use(block: (encoder: AWTSequenceEncoder) -> Unit) { | ||
| try { | ||
| block(this) | ||
| } finally { | ||
| finish() | ||
| } | ||
| } | ||
|
|
||
| fun useFrameGrab(file: File, block: (grab: FrameGrab) -> Unit) { | ||
| NIOUtils.readableChannel(file).use { channelIn -> | ||
| val grab = FrameGrab.createFrameGrab(channelIn) | ||
| block(grab) | ||
| } | ||
| } |
78 changes: 78 additions & 0 deletions
78
maestro-cli/src/main/java/maestro/cli/graphics/LocalVideoRenderer.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package maestro.cli.graphics | ||
|
|
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| import maestro.cli.runner.resultview.AnsiResultView | ||
| import maestro.cli.view.ProgressBar | ||
| import maestro.cli.view.render | ||
| import okio.ByteString.Companion.decodeBase64 | ||
| import org.jcodec.api.PictureWithMetadata | ||
| import org.jcodec.api.awt.AWTSequenceEncoder | ||
| import org.jcodec.common.io.NIOUtils | ||
| import org.jcodec.common.model.Rational | ||
| import org.jcodec.scale.AWTUtil | ||
| import java.awt.image.BufferedImage | ||
| import java.io.File | ||
|
|
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| interface FrameRenderer { | ||
| fun render( | ||
| outputWidthPx: Int, | ||
| outputHeightPx: Int, | ||
| screen: BufferedImage, | ||
| text: String, | ||
| ): BufferedImage | ||
| } | ||
|
|
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| class LocalVideoRenderer( | ||
| private val frameRenderer: FrameRenderer, | ||
| private val outputFile: File, | ||
| private val outputFPS: Int, | ||
| private val outputWidthPx: Int, | ||
| private val outputHeightPx: Int, | ||
| ) : VideoRenderer { | ||
|
|
||
| override fun render( | ||
| screenRecording: File, | ||
| textFrames: List<AnsiResultView.Frame>, | ||
| ) { | ||
| System.err.println() | ||
| System.err.println("@|bold Rendering video - This may take some time...|@".render()) | ||
| System.err.println() | ||
| System.err.println(outputFile.absolutePath) | ||
|
|
||
| val uploadProgress = ProgressBar(50) | ||
| NIOUtils.writableFileChannel(outputFile.absolutePath).use { out -> | ||
| AWTSequenceEncoder(out, Rational.R(outputFPS, 1)).use { encoder -> | ||
| useFrameGrab(screenRecording) { grab -> | ||
| val outputDurationSeconds = grab.videoTrack.meta.totalDuration | ||
| val outputFrameCount = (outputDurationSeconds * outputFPS).toInt() | ||
| var curFrame: PictureWithMetadata = grab.nativeFrameWithMetadata!! | ||
| var nextFrame: PictureWithMetadata? = grab.nativeFrameWithMetadata | ||
| (0..outputFrameCount).forEach { frameIndex -> | ||
| val currentTimestampSeconds = frameIndex.toDouble() / outputFPS | ||
|
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| // !! Due to smart cast limitation: https://youtrack.jetbrains.com/issue/KT-7186 | ||
| @Suppress("UNNECESSARY_NOT_NULL_ASSERTION") | ||
| while (nextFrame != null && nextFrame!!.timestamp <= currentTimestampSeconds) { | ||
| curFrame = nextFrame!! | ||
| nextFrame = grab.nativeFrameWithMetadata | ||
| } | ||
|
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| val curImage = AWTUtil.toBufferedImage(curFrame.picture) | ||
| val curTextFrame = textFrames.lastOrNull { frame -> frame.timestamp.div(1000.0) <= currentTimestampSeconds } ?: textFrames.first() | ||
| val curText = curTextFrame.content.decodeBase64()!!.string(Charsets.UTF_8).stripAnsiCodes() | ||
| val outputImage = frameRenderer.render(outputWidthPx, outputHeightPx, curImage, curText) | ||
| encoder.encodeImage(outputImage) | ||
|
|
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| uploadProgress.set(frameIndex / outputFrameCount.toFloat()) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| System.err.println() | ||
| System.err.println() | ||
| System.err.println("Rendering complete! If you're sharing on Twitter be sure to tag us \uD83D\uDE04 @|bold @mobile__dev|@".render()) | ||
| } | ||
|
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| private fun String.stripAnsiCodes(): String { | ||
| return replace("\\u001B\\[[;\\d]*[mH]".toRegex(), "") | ||
| } | ||
| } |
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