我在QML中使用播放器，安装了k-lite-codec软件包，并尝试播放mp4和avi视频格式，但它不播放它们，仅播放声音。 为什么是这样？ 怎么了？
关闭应用程序后，我得到以下调试日志：
D3D11 WARNING: Process is terminating. Using simple reporting. Please call ReportLiveObjects() at runtime for standard reporting. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Producer at 0x03DBE8CC, Refcount: 8. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03E35D18, Refcount: 2. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03DBF780, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03CE68C4, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03DC56FC, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03DC58D4, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03DC5ACC, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03DC5CC4, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03DC6184, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03DC6734, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object at 0x03DC6CE4, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Object : 10 [ STATE_CREATION WARNING #0: UNKNOWN]
DXGI WARNING: Live Producer at 0x03D1C814, Refcount: 3. [ STATE_CREATION WARNING #0: ]
DXGI WARNING: Live Object at 0x03D4DCA0, Refcount: 3. [ STATE_CREATION WARNING #0: ]
DXGI WARNING: Live Object : 1 [ STATE_CREATION WARNING #0: ]
答案 0 :(得分：0)
由于您提到了k-lite-codec，因此我假设您正在使用Windows。检查是否可以在Windows Media Player中播放它。如果不是（仅声音），则说明您的系统中缺少必要的编解码器。