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  1. Qt
  2. QTBUG-103853

QMediaPlayer position error when rewind

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 6.3.1, 6.4.0 Beta1
    • 6.3.0, 6.4
    • Multimedia
    • None
    • Windows 11 amd64
      i7-12650H
    • Windows
    • 54ee3fb7da (qt/qtmultimedia/dev) cf3cbfb0e0 (qt/qtmultimedia/6.3) cf3cbfb0e0 (qt/tqtc-qtmultimedia/6.3) 54ee3fb7da (qt/tqtc-qtmultimedia/dev) cf3cbfb0e0 (qt/tqtc-qtmultimedia/6.3.1) 54ee3fb7da (qt/qtmultimedia/6.4) 54ee3fb7da (qt/tqtc-qtmultimedia/6.4)

    Description

      1. What do I do

      • rewinding vedio via QMediaPlayer
      QMediaPlayer player;
player.setSource(xxx);
player.play();
player.setPlaybackRate(-1)

      2. What do I expect

      • video frame should rewind
      • QMediaPlayer ::position() should decrease by time

      3. What happened instead

      • Video frame rewind correctly
      • But the position still increase

      4. Which version

      • both 6.3.0 and dev
      • both c++ and qml

      5. Example
      1. unzip and open in qtcreator
      2. run and open an vedio
      3. play then set playbackrate=-1

      6. qtdiag

      Qt 6.3.0 (x86_64-little_endian-llp64 shared (dynamic) release build; by MSVC 2019) on "windows"
OS: Windows 11 Version 2009 [winnt version 10.0.22621]

Architecture: x86_64; features: SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2

Environment:
  QSG_RHI_BACKEND="opengl"
  QtMsBuild="C:\Users\CQ\AppData\Local\QtMsBuild"

Features: QT_NO_EXCEPTIONS

Library info:
  PrefixPath: C:\Qt\6.3.0\msvc2019_64
  DocumentationPath: C:\Qt\Docs\Qt-6.3.0
  HeadersPath: C:\Qt\6.3.0\msvc2019_64\include
  LibrariesPath: C:\Qt\6.3.0\msvc2019_64\lib
  LibraryExecutablesPath: C:\Qt\6.3.0\msvc2019_64\bin
  BinariesPath: C:\Qt\6.3.0\msvc2019_64\bin
  PluginsPath: C:\Qt\6.3.0\msvc2019_64\plugins
  QmlImportsPath: C:\Qt\6.3.0\msvc2019_64\qml
  ArchDataPath: C:\Qt\6.3.0\msvc2019_64
  DataPath: C:\Qt\6.3.0\msvc2019_64
  TranslationsPath: C:\Qt\6.3.0\msvc2019_64\translations
  ExamplesPath: C:\Qt\Examples\Qt-6.3.0
  TestsPath: C:\Qt\6.3.0\msvc2019_64\tests
  SettingsPath:

Standard paths [*...* denote writable entry]:
  DesktopLocation: "Desktop" *C:\Users\CQ\Desktop*
  DocumentsLocation: "Documents" *C:\Users\CQ\Documents*
  FontsLocation: "Fonts" *C:\WINDOWS\Fonts*
  ApplicationsLocation: "Applications" *C:\Users\CQ\AppData\Roaming\Microsoft\Windows\Start Menu\Programs*
  MusicLocation: "Music" *C:\Users\CQ\Music*
  MoviesLocation: "Movies" *C:\Users\CQ\Videos*
  PicturesLocation: "Pictures" *C:\Users\CQ\Pictures*
  TempLocation: "Temporary Directory" *C:\Users\CQ\AppData\Local\Temp*
  HomeLocation: "Home" *C:\Users\CQ*
  AppLocalDataLocation: "Application Data" *C:\Users\CQ\AppData\Local\QtProject\qtdiag* C:\ProgramData\QtProject\qtdiag C:\Qt\6.3.0\msvc2019_64\bin C:\Qt\6.3.0\msvc2019_64\bin\data C:\Qt\6.3.0\msvc2019_64\bin\data\QtProject\qtdiag
  CacheLocation: "Cache" *C:\Users\CQ\AppData\Local\QtProject\qtdiag\cache*
  GenericDataLocation: "Shared Data" *C:\Users\CQ\AppData\Local* C:\ProgramData C:\Qt\6.3.0\msvc2019_64\bin C:\Qt\6.3.0\msvc2019_64\bin\data
  RuntimeLocation: "Runtime" *C:\Users\CQ*
  ConfigLocation: "Configuration" *C:\Users\CQ\AppData\Local\QtProject\qtdiag* C:\ProgramData\QtProject\qtdiag C:\Qt\6.3.0\msvc2019_64\bin C:\Qt\6.3.0\msvc2019_64\bin\data C:\Qt\6.3.0\msvc2019_64\bin\data\QtProject\qtdiag
  DownloadLocation: "Download" *C:\Users\CQ\Downloads*
  GenericCacheLocation: "Shared Cache" *C:\Users\CQ\AppData\Local\cache*
  GenericConfigLocation: "Shared Configuration" *C:\Users\CQ\AppData\Local* C:\ProgramData C:\Qt\6.3.0\msvc2019_64\bin C:\Qt\6.3.0\msvc2019_64\bin\data
  AppDataLocation: "Application Configuration" *C:\Users\CQ\AppData\Roaming\QtProject\qtdiag* C:\ProgramData\QtProject\qtdiag C:\Qt\6.3.0\msvc2019_64\bin C:\Qt\6.3.0\msvc2019_64\bin\data C:\Qt\6.3.0\msvc2019_64\bin\data\QtProject\qtdiag
  AppConfigLocation: "Application Configuration" *C:\Users\CQ\AppData\Local\QtProject\qtdiag* C:\ProgramData\QtProject\qtdiag C:\Qt\6.3.0\msvc2019_64\bin C:\Qt\6.3.0\msvc2019_64\bin\data C:\Qt\6.3.0\msvc2019_64\bin\data\QtProject\qtdiag

File selectors (increasing order of precedence):
  zh_CN windows winnt

Network:
  Using "OpenSSL 1.1.1o  3 May 2022", version: 0x101010ff

Platform capabilities: ThreadedPixmaps OpenGL ThreadedOpenGL WindowMasks MultipleWindows ForeignWindows NonFullScreenWindows NativeWidgets WindowManagement RasterGLSurface AllGLFunctionsQueryable

Style hints:
  mouseDoubleClickInterval: 500
  mousePressAndHoldInterval: 800
  startDragDistance: 10
  startDragTime: 500
  startDragVelocity: 0
  keyboardInputInterval: 400
  keyboardAutoRepeatRate: 32
  cursorFlashTime: 1060
  showIsFullScreen: 0
  showIsMaximized: 0
  passwordMaskDelay: 0
  passwordMaskCharacter: U+25CF
  fontSmoothingGamma: 1.2
  useRtlExtensions: 0
  setFocusOnTouchRelease: 0
  tabFocusBehavior: Qt::TabFocusAllControls
  singleClickActivation: 0

Additional style hints (QPlatformIntegration):
  ReplayMousePressOutsidePopup: 1

Theme:
  Platforms requested : windows
            available :
  Styles requested    : WindowsVista,Windows
         available    : windowsvista,Windows,Fusion
  System font         : "Microsoft YaHei UI" 9
  Native file dialog

Fonts:
  General font : "Microsoft YaHei UI" 9
  Fixed font   : "Courier New" 9
  Title font   : "Microsoft YaHei UI" 9
  Smallest font: "Microsoft YaHei UI" 9

Palette:
  QPalette::WindowText: #ff000000
  QPalette::Button: #fff0f0f0
  QPalette::Light: #ffffffff
  QPalette::Midlight: #ffe3e3e3
  QPalette::Dark: #ffa0a0a0
  QPalette::Mid: #ffa0a0a0
  QPalette::Text: #ff000000
  QPalette::BrightText: #ffffffff
  QPalette::ButtonText: #ff000000
  QPalette::Base: #ffffffff
  QPalette::Window: #fff0f0f0
  QPalette::Shadow: #ff696969
  QPalette::Highlight: #ff0078d7
  QPalette::HighlightedText: #ffffffff
  QPalette::Link: #ff0000ff
  QPalette::LinkVisited: #ffff00ff
  QPalette::AlternateBase: #ffe9e7e3
  QPalette::NoRole: #ff000000
  QPalette::ToolTipBase: #ffffffdc
  QPalette::ToolTipText: #ff000000
  QPalette::PlaceholderText: #80000000

Screens: 1, High DPI scaling: active
# 0 "\\.\DISPLAY1" Depth: 32 Primary: yes
  Manufacturer:
  Model:
  Serial number:
  Geometry: 1707x960+0+0 (native: 2560x1440+0+0) Available: 1707x912+0+0
  Physical size: 344x193 mm  Refresh: 165.003 Hz Power state: 0
  Physical DPI: 126.04,126.342 Logical DPI: 96,96 (native: 144,144) Subpixel_None
  High DPI scaling factor: 1.5 DevicePixelRatio: 1.5
  Primary orientation: 2 Orientation: 2 Native orientation: 0

Dynamic GL LibGL Vendor: Intel
Renderer: Intel(R) UHD Graphics
Version: 4.6.0 - Build 30.0.101.1368
Shading language: 4.60 - Build 30.0.101.1368
Format: Version: 4.6 Profile: 2 Swap behavior: 2 Buffer size (RGBA): 8,8,8,8 Depth buffer: 24 Stencil buffer: 8
Profile: None (QOpenGLFunctions_4_6)

Vulkan instance available
Supported instance extensions:
  VK_KHR_device_group_creation, version 1
  VK_KHR_display, version 23
  VK_KHR_external_fence_capabilities, version 1
  VK_KHR_external_memory_capabilities, version 1
  VK_KHR_external_semaphore_capabilities, version 1
  VK_KHR_get_display_properties2, version 1
  VK_KHR_get_physical_device_properties2, version 2
  VK_KHR_get_surface_capabilities2, version 1
  VK_KHR_surface, version 25
  VK_KHR_surface_protected_capabilities, version 1
  VK_KHR_win32_surface, version 6
  VK_EXT_debug_report, version 10
  VK_EXT_debug_utils, version 2
  VK_EXT_direct_mode_display, version 1
  VK_EXT_swapchain_colorspace, version 4
  VK_NV_external_memory_capabilities, version 1
Supported layers:
  VK_LAYER_NV_optimus, version 1, spec version 1.3.194, NVIDIA Optimus layer
  VK_LAYER_VALVE_steam_overlay, version 1, spec version 1.2.136, Steam Overlay Layer
  VK_LAYER_VALVE_steam_fossilize, version 1, spec version 1.2.136, Steam Pipeline Caching Layer
Available physical devices:
  API version 1.2.203, vendor 0x8086, device 0x46A3, Intel(R) UHD Graphics, type 1, driver version 0.404.1368  API version 1.3.194, vendor 0x10DE, device 0x249D, NVIDIA GeForce RTX 3070 Laptop GPU, type 2, driver version 512.380.0


GPU #1:
         Card name         : Intel(R) UHD Graphics
       Driver Name         : igd10iumd64.dll
    Driver Version         : 30.0.101.1368
         Vendor ID         : 0x8086
         Device ID         : 0x46A3
         SubSys ID         : 0x136D1043
       Revision ID         : 0x000C

Qt Rendering Hardware Interface supported backends:
OpenGL (with default QSurfaceFormat):
  Driver Info: Device: Intel Intel(R) UHD Graphics 4.6.0 - Build 30.0.101.1368 Device ID: 0x0 Vendor ID: 0x0 Device type: Unknown
  Min Texture Size: 1
  Max Texture Size: 16384
  Max Color Attachments: 8
  Frames in Flight: 1
  Async Readback Limit: 1
  MaxThreadGroupsPerDimension: 65535
  MaxThreadsPerThreadGroup: 1024
  MaxThreadGroupX: 1024
  MaxThreadGroupY: 1024
  MaxThreadGroupZ: 64
  TextureArraySizeMax: 2048
  MaxUniformBufferRange: 16384
  Uniform Buffer Alignment: 1
  Supported MSAA sample counts: 1,2,4,8,16
  Features:
    v MultisampleTexture
    v MultisampleRenderBuffer
    - DebugMarkers
    - Timestamps
    v Instancing
    - CustomInstanceStepRate
    v PrimitiveRestart
    v NonDynamicUniformBuffers
    v NonFourAlignedEffectiveIndexBufferOffset
    v NPOTTextureRepeat
    - RedOrAlpha8IsRed
    v ElementIndexUint
    v Compute
    v WideLines
    v VertexShaderPointSize
    v BaseVertex
    - BaseInstance
    v TriangleFanTopology
    v ReadBackNonUniformBuffer
    v ReadBackNonBaseMipLevel
    v TexelFetch
    v RenderToNonBaseMipLevel
    v IntAttributes
    v ScreenSpaceDerivatives
    - ReadBackAnyTextureFormat
    v PipelineCacheDataLoadSave
    v ImageDataStride
    v RenderBufferImport
    v ThreeDimensionalTextures
    v RenderTo3DTextureSlice
    v TextureArrays
  Texture formats: RGBA8 BGRA8 R8 R16 RG8 RED_OR_ALPHA8 RGBA16F RGBA32F R16F R32F D16 D32F BC1 BC2 BC3 ETC2_RGB8 ETC2_RGB8A1 ETC2_RGBA8 ASTC_4x4 ASTC_5x4 ASTC_5x5 ASTC_6x5 ASTC_6x6 ASTC_8x5 ASTC_8x6 ASTC_8x8 ASTC_10x5 ASTC_10x6 ASTC_10x8 ASTC_10x10 ASTC_12x10 ASTC_12x12
Vulkan:
  Driver Info: Device: Intel(R) UHD Graphics Device ID: 0x46A3 Vendor ID: 0x8086 Device type: Integrated
  Min Texture Size: 1
  Max Texture Size: 16384
  Max Color Attachments: 8
  Frames in Flight: 2
  Async Readback Limit: 2
  MaxThreadGroupsPerDimension: 65536
  MaxThreadsPerThreadGroup: 1024
  MaxThreadGroupX: 1024
  MaxThreadGroupY: 1024
  MaxThreadGroupZ: 64
  TextureArraySizeMax: 2048
  MaxUniformBufferRange: 2147483647
  Uniform Buffer Alignment: 64
  Supported MSAA sample counts: 1,2,4,8,16
  Features:
    v MultisampleTexture
    v MultisampleRenderBuffer
    - DebugMarkers
    v Timestamps
    v Instancing
    - CustomInstanceStepRate
    v PrimitiveRestart
    v NonDynamicUniformBuffers
    v NonFourAlignedEffectiveIndexBufferOffset
    v NPOTTextureRepeat
    v RedOrAlpha8IsRed
    v ElementIndexUint
    v Compute
    v WideLines
    v VertexShaderPointSize
    v BaseVertex
    v BaseInstance
    v TriangleFanTopology
    v ReadBackNonUniformBuffer
    v ReadBackNonBaseMipLevel
    v TexelFetch
    v RenderToNonBaseMipLevel
    v IntAttributes
    v ScreenSpaceDerivatives
    v ReadBackAnyTextureFormat
    v PipelineCacheDataLoadSave
    v ImageDataStride
    - RenderBufferImport
    v ThreeDimensionalTextures
    - RenderTo3DTextureSlice
    v TextureArrays
  Texture formats: RGBA8 BGRA8 R8 R16 RG8 RED_OR_ALPHA8 RGBA16F RGBA32F R16F R32F D16 D32F BC1 BC2 BC3 BC4 BC5 BC6H BC7 ETC2_RGB8 ETC2_RGB8A1 ETC2_RGBA8 ASTC_4x4 ASTC_5x4 ASTC_5x5 ASTC_6x5 ASTC_6x6 ASTC_8x5 ASTC_8x6 ASTC_8x8 ASTC_10x5 ASTC_10x6 ASTC_10x8 ASTC_10x10 ASTC_12x10 ASTC_12x12
Direct3D 11:
  Driver Info: Device: Intel(R) UHD Graphics Device ID: 0x46A3 Vendor ID: 0x8086 Device type: Unknown
  Min Texture Size: 1
  Max Texture Size: 16384
  Max Color Attachments: 8
  Frames in Flight: 1
  Async Readback Limit: 1
  MaxThreadGroupsPerDimension: 65535
  MaxThreadsPerThreadGroup: 1024
  MaxThreadGroupX: 1024
  MaxThreadGroupY: 1024
  MaxThreadGroupZ: 64
  TextureArraySizeMax: 2048
  MaxUniformBufferRange: 65536
  Uniform Buffer Alignment: 256
  Supported MSAA sample counts: 1,2,4,8
  Features:
    v MultisampleTexture
    v MultisampleRenderBuffer
    v DebugMarkers
    v Timestamps
    v Instancing
    v CustomInstanceStepRate
    v PrimitiveRestart
    - NonDynamicUniformBuffers
    v NonFourAlignedEffectiveIndexBufferOffset
    v NPOTTextureRepeat
    v RedOrAlpha8IsRed
    v ElementIndexUint
    v Compute
    - WideLines
    - VertexShaderPointSize
    v BaseVertex
    v BaseInstance
    - TriangleFanTopology
    v ReadBackNonUniformBuffer
    v ReadBackNonBaseMipLevel
    v TexelFetch
    v RenderToNonBaseMipLevel
    v IntAttributes
    v ScreenSpaceDerivatives
    v ReadBackAnyTextureFormat
    - PipelineCacheDataLoadSave
    v ImageDataStride
    - RenderBufferImport
    v ThreeDimensionalTextures
    v RenderTo3DTextureSlice
    v TextureArrays
  Texture formats: RGBA8 BGRA8 R8 R16 RG8 RED_OR_ALPHA8 RGBA16F RGBA32F R16F R32F D16 D32F BC1 BC2 BC3 BC4 BC5 BC6H BC7

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            anrocha André De La Rocha (Inactive)
            cq2001 Q C
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            Dates

              Created:
              Updated:
              Resolved:

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