wt
496ee6f0f2
- Wait until the picker movie's file size stops changing before staging it, so a movie whose final bytes are still being flushed is never copied truncated (which produced drafts without a thumbnail and unplayable previews). - Log the whole camera video path (pickup size, staging result, analyze outcome, thumbnail decode) under the video-preview os_log category for fast on-device diagnosis. - Cover the video analysis pipeline with a simulator test that generates an HEVC QuickTime movie and asserts duration plus JPEG thumbnail, and guard the diagnostics in Scripts/verify.sh.
69 lines
2.6 KiB
Swift
69 lines
2.6 KiB
Swift
import AVFoundation
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import XCTest
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@testable import Luma
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final class MediaPreviewProcessorVideoTests: XCTestCase {
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/// Reproduces the camera-video analysis on the simulator: the pipeline
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/// must produce a duration and a JPEG thumbnail for a freshly written
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/// HEVC QuickTime movie.
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func testVideoAnalysisProducesDurationAndThumbnail() async throws {
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let url = try await Self.makeTestMovie()
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defer { try? FileManager.default.removeItem(at: url) }
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let processor = MediaPreviewProcessor()
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let analysis = await processor.analyze(
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url: url,
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kind: .video,
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mimeType: "video/quicktime"
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)
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XCTAssertNotNil(analysis.duration)
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if let duration = analysis.duration {
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XCTAssertGreaterThan(duration, 0)
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}
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XCTAssertNotNil(analysis.thumbnailData)
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XCTAssertFalse(analysis.thumbnailData?.isEmpty ?? true)
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}
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private static func makeTestMovie() async throws -> URL {
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let output = FileManager.default.temporaryDirectory
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.appendingPathComponent("test-camera-\(UUID().uuidString).mov")
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let writer = try AVAssetWriter(outputURL: output, fileType: .mov)
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let input = AVAssetWriterInput(
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mediaType: .video,
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outputSettings: [
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AVVideoCodecKey: AVVideoCodecType.hevc,
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AVVideoWidthKey: 640,
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AVVideoHeightKey: 480,
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]
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)
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input.expectsMediaDataInRealTime = true
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let adaptor = AVAssetWriterInputPixelBufferAdaptor(
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assetWriterInput: input,
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sourcePixelBufferAttributes: [
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kCVPixelBufferPixelFormatTypeKey as String: kCVPixelFormatType_32BGRA,
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kCVPixelBufferWidthKey as String: 640,
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kCVPixelBufferHeightKey as String: 480,
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]
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)
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writer.add(input)
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guard writer.startWriting() else {
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throw writer.error ?? NSError(domain: "test", code: 1)
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}
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writer.startSession(atSourceTime: .zero)
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for frame in 0..<60 {
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while !input.isReadyForMoreMediaData {
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try await Task.sleep(nanoseconds: 2_000_000)
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}
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var buffer: CVPixelBuffer?
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CVPixelBufferCreate(
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kCFAllocatorDefault, 640, 480, kCVPixelFormatType_32BGRA, nil, &buffer
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)
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adaptor.append(buffer!, withPresentationTime: CMTime(value: Int64(frame), timescale: 30))
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}
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input.markAsFinished()
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await writer.finishWriting()
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return output
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}
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}
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