完善 OTG 相机有线传图：支持 Sony/Canon 自动识别，页面 detach 保持会话以便再次进入复连。

引入进程级 CameraTetheringSession 与共享 USB Browser；离开传图页仅取消 UI 回调，App 终止时再完整 shutdown 释放 PTP 与 Browser 资源。 Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-01 15:45:35 +08:00
parent 5f7ef24683
commit 90d135b5ac
34 changed files with 2870 additions and 310 deletions
--- a/suixinkanTests/CameraTethering/CanonPTPCommandsTests.swift
+++ b/suixinkanTests/CameraTethering/CanonPTPCommandsTests.swift
@ -0,0 +1,85 @@
+//
+//  CanonPTPCommandsTests.swift
+//  suixinkanTests
+//
+
+import XCTest
+@testable import suixinkan
+
+/// Canon PTP 命令与事件解析测试。
+final class CanonPTPCommandsTests: XCTestCase {
+    /// 测试 SetRemoteMode 命令包 opcode。
+    func testBuildSetRemoteModeCommand() {
+        let data = PTPHelper.buildCommand(
+            code: CanonPTPCommand.eosSetRemoteMode,
+            transactionID: 1,
+            parameters: [1]
+        )
+
+        XCTAssertEqual(data.count, 16)
+        XCTAssertEqual(data[6], 0x14)
+        XCTAssertEqual(data[7], 0x91)
+    }
+
+    /// 测试 ObjectAddedEx (0xC181) 事件解析。
+    func testParseObjectAddedExEvent() {
+        var blob = Data()
+        let recordSize: UInt32 = 8 + 40
+        blob.append(contentsOf: withUnsafeBytes(of: recordSize.littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: CanonPTPCommand.eosObjectAddedEx.littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0x1234).littleEndian) { Data($0) }) // handle
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0x00010001).littleEndian) { Data($0) }) // storage
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0x3801).littleEndian) { Data($0) }) // ofc
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0).littleEndian) { Data($0) }) // flags
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0).littleEndian) { Data($0) }) // parent
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0).littleEndian) { Data($0) }) // reserved
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(1024).littleEndian) { Data($0) }) // size
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0).littleEndian) { Data($0) }) // reserved
+        let filename = "IMG_0001.JPG"
+        blob.append(filename.data(using: .ascii)!)
+        blob.append(0)
+
+        let events = CanonEosEventParser.parse(blob)
+        XCTAssertEqual(events.count, 1)
+        guard case .objectAdded(let added) = events[0] else {
+            return XCTFail("expected objectAdded")
+        }
+        XCTAssertEqual(added.objectHandle, 0x1234)
+        XCTAssertEqual(added.filename, "IMG_0001.JPG")
+        XCTAssertEqual(added.size, 1024)
+    }
+
+    /// 测试 ObjectAddedEx2 (0xC1A7) 大文件 size 解析。
+    func testParseObjectAddedEx2Event() {
+        var blob = Data()
+        let recordSize: UInt32 = 8 + 48
+        blob.append(contentsOf: withUnsafeBytes(of: recordSize.littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: CanonPTPCommand.eosObjectAddedEx2.littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0x5678).littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0x00010001).littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0x3801).littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0).littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0).littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(512).littleEndian) { Data($0) }) // sizeLow
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(1).littleEndian) { Data($0) }) // sizeHigh
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0).littleEndian) { Data($0) })
+        blob.append(contentsOf: withUnsafeBytes(of: UInt32(0).littleEndian) { Data($0) })
+        blob.append("LARGE.JPG".data(using: .ascii)!)
+        blob.append(0)
+
+        let events = CanonEosEventParser.parse(blob)
+        XCTAssertEqual(events.count, 1)
+        guard case .objectAdded(let added) = events[0] else {
+            return XCTFail("expected objectAdded")
+        }
+        XCTAssertEqual(added.objectHandle, 0x5678)
+        XCTAssertEqual(added.size, 512 | (1 << 32))
+    }
+
+    /// 测试支持的文件名扩展名过滤。
+    func testSupportedFilenameExtensions() {
+        XCTAssertTrue(CanonPTPHelper.isSupportedFilename("photo.JPG"))
+        XCTAssertTrue(CanonPTPHelper.isSupportedFilename("photo.cr2"))
+        XCTAssertFalse(CanonPTPHelper.isSupportedFilename("photo.tif"))
+    }
+}