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NaMo_1534561
New Contributor II

Hello,

I would like to translate "Support Multiple Frame Rates in One Frame Descriptor in a UVC Application – KBA228228" into Japanese.

Please confirm to my work.

Best Regards,

Naoaki Morimoto

2 Replies
JennaJo
Moderator
Moderator

Hello, Morimoto-san

Confirm to work to do.

Thanks,

Jenna

Jenna Jo
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NaMo_1534561
New Contributor II

Hello,

I translated following one into Japanese.

Please confirm below.

Support Multiple Frame Rates in One Frame Descriptor in a UVC Application – KBA228228

Best Regards,

Naoaki Morimoto

UVCアプリケーションの1つのフレームディスクリプタで複数のフレームレートをサポートする – KBA228228

バージョン 4

Author: RoyL_01           Version: **

注意:

この記事では、UVCアプリケーションの1つのディスクリプタで複数のフレームレートをサポートする方法を示します。

1.対応するフレーム記述子を変更します。 次のコードスニペットは、解像度1080pで30 fpsおよび60 fpsを定義しています。

    1.  0x22,                              /* Descriptor size */

    2.  CX3_CS_INTRFC_DESCR,                /* Descriptor type*/

    3.  0x05,                              /* Subtype:  frame interface*/

    4.  0x01,                              /* Frame Descriptor Index: 1 */

    5.  0x00,                              /* No Still image capture method supported */

    6.  0x80,0x07,                        /* Width in pixel:  1920 */

    7.  0x38,0x04,                        /* Height in pixel: 1080 */

    8.  0x00,0x80,0x53,0x3b,            /* Min bit rate (bits/s): 1920 x 1080 x 16 x 30 = 995328000 */

    9.  0x00,0x00,0xa7,0x76,            /* Max bit rate (bits/s): 1920 x 1080 x 16 x 30 = 0x76a70000 */

    10. 0x00,0x48,0x3f,0x00,            /* Maximum video or still frame size in bytes(Deprecated): 1920 x 1080 x 2 */

    11. 0x15,0x16,0x05,0x00,            /* Default frame interval (in 100ns units): (1/30)x10^7 */

    12. 0x02,                              /* Frame interval type : No of discrete intervals */

    13. 0x15,0x16,0x05,0x00,            /* 30 fps */

    14. 0x0a,0x8b,0x02,0x00,            /* 60 fps */

2.Class-specific Video Streaming Input Header DescriptorとCyCx3USBSSConfigDscrのlength filedを変更します。

    1.  0x56,0x00,                          /* Total size of Class specific VS descr */

    1.  0xe9,0x00,                        /* Length of this descriptor and all sub descriptors */

3. 30fpsおよび60fpsのプローブ構造体を作成します。

    1.  /* UVC Probe Control Setting - 1080p_60fps*/

    2.  uint8_t const gl1080pProbeCtrl_60fps[CX3_UVC_MAX_PROBE_SETTING] = { 

    3.      0x00, 0x00,                        /* bmHint : No fixed parameters */

    4.      0x01,                              /* Use 1st Video format index */

    5.      0x01,                              /* Use 1st Video frame index */

    6.      0x0a,0x8b,0x02,0x00,            /* Desired frame interval in 100ns = (1/30)x10^7 */

    7.      0x00, 0x00,                        /* Key frame rate in key frame/video frame units */

    8.      0x00, 0x00,                        /* PFrame rate in PFrame / key frame units */

    9.      0x00, 0x00,                        /* Compression quality control */

    10.     0x00, 0x00,                        /* Window size for average bit rate */

    11.     0x00, 0x00,                        /* Internal video streaming i/f latency in ms */

    12.     0x00,0x48,0x3f,0x00,            /* Max video frame size in bytes = 1920 x 1080 x 2 */

    13. #ifdef CX3_UVC_1_0_SUPPORT 

    14.     0x00, 0x90, 0x00, 0x00              /* No. of bytes device can rx in single payload: 36KB */

    15. #else 

    16.     /* UVC 1.1 Probe Control has additional fields from UVC 1.0 */
    17.     0x00, 0x90, 0x00, 0x00,            /* No. of bytes device can rx in single payload: 36KB */
    18.     0x00, 0x60, 0xE3, 0x16,            /* Device Clock */
    19.     0x00,                              /* Framing Information - Ignored for uncompressed format*/
    20.     0x00,                              /* Preferred payload format version */
    21.     0x00,                              /* Minimum payload format version */
    22.     0x00                                /* Maximum payload format version */
    23. #endif 
    24. };

    1.  /* UVC Probe Control Setting - 1080p_30fps*/

    2.  uint8_t const gl1080pProbeCtrl_30fps[CX3_UVC_MAX_PROBE_SETTING] = { 

    3.      0x00, 0x00,                        /* bmHint : No fixed parameters */

    4.      0x01,                              /* Use 1st Video format index */

    5.      0x01,                              /* Use 1st Video frame index */

    6.      0x15,0x16,0x05,0x00,            /* Desired frame interval in 100ns = (1/30)x10^7 */

    7.      0x00, 0x00,                      /* Key frame rate in key frame/video frame units */

    8.      0x00, 0x00,                      /* PFrame rate in PFrame / key frame units */

    9.      0x00, 0x00,                      /* Compression quality control */

    10.     0x00, 0x00,                      /* Window size for average bit rate */

    11.     0x00, 0x00,                      /* Internal video streaming i/f latency in ms */

    12.     0x00,0x48,0x3f,0x00,            /* Max video frame size in bytes = 1920 x 1080 x 2 */

    13. #ifdef CX3_UVC_1_0_SUPPORT 

    14.      0x00, 0x90, 0x00, 0x00              /* No. of bytes device can rx in single payload: 36KB */

    15. #else 

    16.      /* UVC 1.1 Probe Control has additional fields from UVC 1.0 */

    17.     0x00, 0x90, 0x00, 0x00,            /* No. of bytes device can rx in single payload: 36KB */

    18.     0x00, 0x60, 0xE3, 0x16,            /* Device Clock */

    19.     0x00,                              /* Framing Information - Ignored for uncompressed format*/

    20.     0x00,                              /* Preferred payload format version */

    21.     0x00,                              /* Minimum payload format version */

    22.     0x00                                /* Maximum payload format version */

    23. #endif 

    24. }; 

4.対応するプローブ構造体を返すように、「CyCx3UvcAppGetProbeControlData」ルーチンを変更します。

    1.  /*Returns the pointer to the Probe Control structure for the corresponding frame index.*/

    2.  uint8_t * 

    3.  CyCx3UvcAppGetProbeControlData ( 

    4.          CyU3PUSBSpeed_t usbConType, 

    5.          uint8_t        frameIndex, 

    6.          uint32_t glCurrentFrameInterval 

    7.          ) 

    8. 

    9.  uint32_t frame_fps = 10000000 / glCurrentFrameInterval; 

    10.      if (usbConType == CY_U3P_SUPER_SPEED) 

    11.     

    12.        if (frameIndex == 1) 

    13.       

    14.          if(frame_fps == 30) 

    15.         

    16.            /* 1920 x 1080 @30.0 fps */

    17.            CyU3PDebugPrint(4,"\n Line:%d: Return 30 fps structure",__LINE__); 

    18.                return ((uint8_t *) gl1080pProbeCtrl_30fps); 

    19.         

    20.          else if(frame_fps == 60) 

    21.          {              /* 1920 x 1080 @60.0 fps */

    22.            CyU3PDebugPrint(4,"\n Line:%d Return 60 fps structure",__LINE__); 

    23.                return ((uint8_t *) gl1080pProbeCtrl_60fps); 

    24.         

    25.       

    26.     

    27.      else if (usbConType == CY_U3P_HIGH_SPEED) 

    28.     

    29.     

    30.      else

    31.     

    32.        

    33.      } 

    34.      return NULL; 

    35. }

 

5. CyCx3UvcAppHandleSetCurReq関数を変更して、set_curコマンドを処理します。

    1.    /* Set Probe Control */

    2.    if (wValue == CX3_UVC_VS_PROBE_CONTROL) 

    3.   

    4.        glCurrentFrameIndex = glCommitCtrl[3]; 

    5.    #ifdef Two_frame_rate 

    6.        glCurrentFrameInterval = ((uint32_t)glCommitCtrl[7] << 24) | ((uint32_t)glCommitCtrl[6] << 16) | ((uint32_t)glCommitCtrl[5] << 😎 | ((uint32_t)glCommitCtrl[4] << 0); 

    8.        CyU3PDebugPrint(4,"\r\n Line:%d: glCurrentFrameInterval = 0x%x",__LINE__,glCurrentFrameInterval); 

    9.    #endif 

    10. 

6. CyCx3UvcAppImageSensorSetVideoResolution関数を変更します。

1.  /* Set the video resolution through this function. This function lists all the

2.  *  supported resolutions in SuperSpeed and HighSpeed. The frame index of resolutions

3.  *  supported in Still Capture can be different from the frame index of resolutions supported

4.  *  in Video streaming.

5.  */

6.  static void

7.  CyCx3UvcAppImageSensorSetVideoResolution( 

8.          uint8_t resolution_index, 

9.          uint32_t frame_Interval 

10.         ) 

11.

12. CyU3PReturnStatus_t status = CY_U3P_SUCCESS; 

13. uint32_t frameRate= 10000000/frame_Interval; 

14. switch (CyU3PUsbGetSpeed ()) 

15.

16. case CY_U3P_SUPER_SPEED: 

17. switch (resolution_index) 

18.

19. case 0x01: 

20.

21. if(frameRate == 30) 

22.

23. CyU3PDebugPrint(4,"\r\n Line:%d: Set 30 fps",__LINE__); 

24. /* Write 1080pSettings */

25. #ifndef FX3_STREAMING 

26. status = CyU3PMipicsiSetIntfParams (&OV5640_YUY2_1080p, CyFalse); 

27. if (status != CY_U3P_SUCCESS) 

28.

29. CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams SS1 Err = 0x%x", status); 

30.

31. #endif 

32. CyCx3_ImageSensor_Set_1080p (); 

33.

34.

35.

36. else if (frameRate == 60) 

37.

38. CyU3PDebugPrint(4,"\r\n Line:%d: Set 60 fps",__LINE__); 

39. /* Write 1080pSettings */

40. #ifndef FX3_STREAMING 

41. status = CyU3PMipicsiSetIntfParams (&OV5640_YUY2_1080p, CyFalse); 

42. if (status != CY_U3P_SUCCESS) 

43.

44. CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams SS1 Err = 0x%x", status); 

45.

46. #endif 

47. CyCx3_ImageSensor_Set_1080p (); 

48.

49.

50.

51.

52.

53.

54. break

55.

56.

57.

58. break

59.

60.

61. case CY_U3P_HIGH_SPEED: 

62. switch (resolution_index) 

63.

64.

65.

66.

67.

68.

69. break

70.

71.

7.プロジェクトをビルドし、テストのためにイメージファイルをUVCデバイスにダウンロードします。

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