USB系列之-UVC支持的非压缩帧格式及其实例分享:UVC+UAC+CDC实例的RGB888+NV12+Y800帧格式
一
.
前言
本文介绍 UVC 的非压缩帧格式 , 并分享测试实例。分享支持NV12和RGB888和Y800的实例，同时分享整个UVC+UAC+CDC的实例的配置描述符。
二
.UVC
规范支持的未压缩帧格式
规格书
USB_Video_Payload_Uncompressed_1.5.pdf:
《
Universal Serial Bus Device Class Definition for Video Devices: Uncompressed Payload Revision 1.5 August 9, 2012
》中
,
描述未压缩视频负载规范支持任何
YUV
格式。推荐的
YUV
格式是以下四种
:
|
Format
|
GUID
|
|
YUY2
|
32595559-0000-0010-8000-00AA00389B71
|
|
NV12
|
3231564E-0000-0010-8000-00AA00389B71
|
|
M420
|
3032344D-0000-0010-8000-00AA00389B71
|
|
I420
|
30323449-0000-0010-8000-00AA00389B71
|
Uncompressed Video Format Descriptor
描述符描述格式信息
,
其中
guidFormat
字段用于表示具体的格式
,
完整的描述符如下
:
|
Offset
|
Field
|
Size
|
Value
|
Description
|
|
0
|
bLength
|
1
|
Number
|
Size of this descriptor in bytes: 27
|
|
1
|
bDescriptorType
|
1
|
Constant
|
CS_INTERFACE descriptor type
|
|
2
|
bDescriptorSubtype
|
1
|
Constant
|
VS_FORMAT_UNCOMPRESSED
|
|
3
|
bFormatIndex
|
1
|
Number
|
Index of this format descriptor
|
|
4
|
bNumFrameDescriptors
|
1
|
Number
|
Number of frame descriptors following
|
|
5
|
guidFormat
|
16
|
GUID
|
Globally Unique Identifier used to
|
|
21
|
bBitsPerPixel
|
1
|
Number
|
Number of bits per pixel used to
|
|
22
|
bDefaultFrameIndex
|
1
|
Number
|
Optimum Frame Index (used to select
|
|
23
|
bAspectRatioX
|
1
|
Number
|
The X dimension of the picture aspect
|
|
24
|
bAspectRatioY
|
1
|
Number
|
The Y dimension of the picture aspect
|
|
25
|
bmInterlaceFlags
|
1
|
Bitmap
|
Specifies interlace information. If the
|
|
26
|
bCopyProtect
|
1
|
Boolean
|
Specifies whether duplication of the
|
Uncompressed Frame Descriptor
描述符描述帧信息
,
完整描述符如下
:
|
Offset
|
Field
|
Size
|
Value
|
Description
|
|
0
|
bLength
|
1
|
Number
|
Size of this descriptor in bytes when
|
|
1
|
bDescriptorType
|
1
|
Constant
|
CS_INTERFACE descriptor type
|
|
2
|
bDescriptorSubtype
|
1
|
Constant
|
VS_FRAME_UNCOMPRESSED
|
|
3
|
bFrameIndex
|
1
|
Number
|
Index of this frame descriptor
|
|
4
|
bmCapabilities
|
1
|
Number
|
D0: Still image supported
Set to 1 if fixed rate is enabled;
otherwise, set to 0.
D7..2: Reserved, set to 0.
|
|
5
|
wWidth
|
2
|
Number
|
Width of decoded bitmap frame in
|
|
7
|
wHeight
|
2
|
Number
|
Height of decoded bitmap frame in
|
|
9
|
dwMinBitRate
|
4
|
Number
|
Specifies the minimum bit rate at the
|
|
13
|
dwMaxBitRate
|
4
|
Number
|
Specifies the maximum bit rate at the
|
|
17
|
dwMaxVideoFrameBuffe
|
4
|
Number
|
Use of this field has been deprecated.
|
|
21
|
dwDefaultFrameInterval
|
4
|
Number
|
Specifies the frame interval the device
|
|
25
|
bFrameIntervalType
|
1
|
Number
|
Indicates how the frame interval can
|
|
26…
|
See the following frame interval
|
|
|
|
|
Offset
|
Field
|
Size
|
Value
|
Description
|
|
26
|
dwMinFrameInterval
|
4
|
Number
|
Shortest frame interval supported (at
|
|
30
|
dwMaxFrameInterval
|
4
|
Number
|
Longest frame interval supported (at
|
|
34
|
dwFrameIntervalStep
|
4
|
Number
|
Indicates granularity of frame interval
|
|
Offset
|
Field
|
Size
|
Value
|
Description
|
|
26
|
dwFrameInterval
(1)
|
4
|
Number
|
Shortest frame interval supported (at
|
|
…
|
…
|
…
|
…
|
…
|
|
26+(4*
|
dwFrameInterval
(n)
|
4
|
Number
|
Longest frame interval supported (at
|
《
UVC 1.5 Class specification.pdf
》的
P83,Color Matching Descriptor
描述符用于描述颜色信息
,
一种格式后只能有一个该描述符
,
必须放在所有
Uncompressed Frame Descriptor
后。
|
Offset
|
Field
|
Size
|
Value
|
Description
|
|
|
0
|
bLength
|
1
|
Constant
|
6
|
|
|
1
|
bDescriptorType
|
1
|
Number
|
CS_INTERFACE type
|
|
|
2
|
bDescriptorSubtype
|
1
|
Number
|
VS_COLORFORMAT
|
|
|
3
|
bColorPrimaries
|
1
|
Number
|
This defines the color primaries
|
|
|
4
|
bTransferCharacteristics
|
1
|
Number
|
This field defines the opto
|
|
5
|
bMatrixCoefficients
|
1
|
Number
|
Matrix used to compute luma and
|
比如如下是一个描述符拓扑
,
红色部分
Y800
的相关描述符
:
三
.Linux
下支持的格式
源码
root/include/linux/usb/uvc.h
中
(https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/usb/uvc.h?h=v6.9-rc5)
定义了支持的格式的
16
字节的
GUID.
/* SPDX-License-Identifier: GPL-2.0-or-later *//** v4l2 uvc internal API header** Some commonly needed functions for uvc drivers*//* ------------------------------------------------------------------------* GUIDs*/{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03}{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01}{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02}{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0x00, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ 0x7d, 0xeb, 0x36, 0xe4, 0x4f, 0x52, 0xce, 0x11, \0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}{ 0x7e, 0xeb, 0x36, 0xe4, 0x4f, 0x52, 0xce, 0x11, \0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x90, 0x2d, 0x58, 0x4a, \0x92, 0x0b, 0x77, 0x3f, 0x1f, 0x2c, 0x55, 0x6b}{ , , , , 0x66, 0x1a, 0x42, 0xa2, \0x90, 0x65, 0xd0, 0x18, 0x14, 0xa8, 0xef, 0x8a}{ , , , , 0xdb, 0x57, 0x49, 0x5e, \0x8e, 0x3f, 0xf4, 0x79, 0x53, 0x2b, 0x94, 0x6f}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{0x32, 0x00, 0x00, 0x00, 0x02, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}{ , , , , 0x00, 0x00, 0x10, 0x00, \0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}struct uvc_format_desc {u8 guid[16];u32 fcc;};const struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16]);
源码
root/drivers/media/common/uvc.c
中
(https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/media/common/uvc.c?h=v6.9-rc5)
定义了格式结构体数组
uvc_fmts, .guid
就是前面的
16
字节格式
,fcc
即
提供了接口
uvc_format_by_guid
获取格式信息
.
// SPDX-License-Identifier: GPL-2.0-or-later/* ------------------------------------------------------------------------* Video formats*/static const struct uvc_format_desc uvc_fmts[] = {{.guid = UVC_GUID_FORMAT_YUY2,.fcc = V4L2_PIX_FMT_YUYV,},{.guid = UVC_GUID_FORMAT_YUY2_ISIGHT,.fcc = V4L2_PIX_FMT_YUYV,},{.guid = UVC_GUID_FORMAT_NV12,.fcc = V4L2_PIX_FMT_NV12,},{.guid = UVC_GUID_FORMAT_MJPEG,.fcc = V4L2_PIX_FMT_MJPEG,},{.guid = UVC_GUID_FORMAT_YV12,.fcc = V4L2_PIX_FMT_YVU420,},{.guid = UVC_GUID_FORMAT_I420,.fcc = V4L2_PIX_FMT_YUV420,},{.guid = UVC_GUID_FORMAT_M420,.fcc = V4L2_PIX_FMT_M420,},{.guid = UVC_GUID_FORMAT_UYVY,.fcc = V4L2_PIX_FMT_UYVY,},{.guid = UVC_GUID_FORMAT_Y800,.fcc = V4L2_PIX_FMT_GREY,},{.guid = UVC_GUID_FORMAT_Y8,.fcc = V4L2_PIX_FMT_GREY,},{.guid = UVC_GUID_FORMAT_D3DFMT_L8,.fcc = V4L2_PIX_FMT_GREY,},{.guid = UVC_GUID_FORMAT_KSMEDIA_L8_IR,.fcc = V4L2_PIX_FMT_GREY,},{.guid = UVC_GUID_FORMAT_Y10,.fcc = V4L2_PIX_FMT_Y10,},{.guid = UVC_GUID_FORMAT_Y12,.fcc = V4L2_PIX_FMT_Y12,},{.guid = UVC_GUID_FORMAT_Y16,.fcc = V4L2_PIX_FMT_Y16,},{.guid = UVC_GUID_FORMAT_BY8,.fcc = V4L2_PIX_FMT_SBGGR8,},{.guid = UVC_GUID_FORMAT_BA81,.fcc = V4L2_PIX_FMT_SBGGR8,},{.guid = UVC_GUID_FORMAT_GBRG,.fcc = V4L2_PIX_FMT_SGBRG8,},{.guid = UVC_GUID_FORMAT_GRBG,.fcc = V4L2_PIX_FMT_SGRBG8,},{.guid = UVC_GUID_FORMAT_RGGB,.fcc = V4L2_PIX_FMT_SRGGB8,},{.guid = UVC_GUID_FORMAT_RGBP,.fcc = V4L2_PIX_FMT_RGB565,},{.guid = UVC_GUID_FORMAT_BGR3,.fcc = V4L2_PIX_FMT_BGR24,},{.guid = UVC_GUID_FORMAT_BGR4,.fcc = V4L2_PIX_FMT_XBGR32,},{.guid = UVC_GUID_FORMAT_H264,.fcc = V4L2_PIX_FMT_H264,},{.guid = UVC_GUID_FORMAT_H265,.fcc = V4L2_PIX_FMT_HEVC,},{.guid = UVC_GUID_FORMAT_Y8I,.fcc = V4L2_PIX_FMT_Y8I,},{.guid = UVC_GUID_FORMAT_Y12I,.fcc = V4L2_PIX_FMT_Y12I,},{.guid = UVC_GUID_FORMAT_Z16,.fcc = V4L2_PIX_FMT_Z16,},{.guid = UVC_GUID_FORMAT_RW10,.fcc = V4L2_PIX_FMT_SRGGB10P,},{.guid = UVC_GUID_FORMAT_BG16,.fcc = V4L2_PIX_FMT_SBGGR16,},{.guid = UVC_GUID_FORMAT_GB16,.fcc = V4L2_PIX_FMT_SGBRG16,},{.guid = UVC_GUID_FORMAT_RG16,.fcc = V4L2_PIX_FMT_SRGGB16,},{.guid = UVC_GUID_FORMAT_GR16,.fcc = V4L2_PIX_FMT_SGRBG16,},{.guid = UVC_GUID_FORMAT_INVZ,.fcc = V4L2_PIX_FMT_Z16,},{.guid = UVC_GUID_FORMAT_INVI,.fcc = V4L2_PIX_FMT_Y10,},{.guid = UVC_GUID_FORMAT_INZI,.fcc = V4L2_PIX_FMT_INZI,},{.guid = UVC_GUID_FORMAT_CNF4,.fcc = V4L2_PIX_FMT_CNF4,},{.guid = UVC_GUID_FORMAT_HEVC,.fcc = V4L2_PIX_FMT_HEVC,},};const struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16]){unsigned int len = ARRAY_SIZE(uvc_fmts);unsigned int i;for (i = 0; i < len; ++i) {if (memcmp(guid, uvc_fmts[i].guid, 16) == 0)return &uvc_fmts[i];}return NULL;}EXPORT_SYMBOL_GPL(uvc_format_by_guid);MODULE_LICENSE("GPL");
其中
fcc
即
guid
的前
4
个字节拼成一个
u32
的段标志
,
v4l2_fourcc
接口实现该功能。
实现见
root/include/uapi/linux/videodev2.h
中
(https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/videodev2.h?h=v6.9-rc5)
/* Four-character-code (FOURCC) */#define v4l2_fourcc(a, b, c, d)\((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))#define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) | (1U << 31))
上述的宏
V4L2_PIX_FMT_YUYV
等也是在该文件中
例如
/* Luminance+Chrominance formats */
四
.Windwos
下支持的格式
D:\Windows Kits\10\Include\10.0.19041.0\shared\uuids.h
比如
// 32315659-0000-0010-8000-00AA00389B71 'YV12' == MEDIASUBTYPE_YV12
OUR_GUID_ENTRY(MEDIASUBTYPE_YV12,
0x32315659, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
// 3231564E-0000-0010-8000-00AA00389B71 'NV12' == MEDIASUBTYPE_NV12
OUR_GUID_ENTRY(MEDIASUBTYPE_NV12,
0x3231564E, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
注意这里都是小端模式
,
比如
NV
在描述符中写为
0x4E,0x56,0x31,0x32,
0x00,0x00,
0x10,0x00,
0x80,0x00,0x00,0xAA,0x00,0x38,0x9B,0x71,
//// DX-VA uncompressed surface formats//// 32315659-0000-0010-8000-00AA00389B71 'YV12' == MEDIASUBTYPE_YV12OUR_GUID_ENTRY(MEDIASUBTYPE_YV12,0x32315659, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 3231564E-0000-0010-8000-00AA00389B71 'NV12' == MEDIASUBTYPE_NV12OUR_GUID_ENTRY(MEDIASUBTYPE_NV12,0x3231564E, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 3131564E-0000-0010-8000-00AA00389B71 'NV11' == MEDIASUBTYPE_NV11#ifndef MEDIASUBTYPE_NV11_DEFINED#define MEDIASUBTYPE_NV11_DEFINEDOUR_GUID_ENTRY(MEDIASUBTYPE_NV11,0x3131564E, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)#endif// 38303250-0000-0010-8000-00AA00389B71 'P208' == MEDIASUBTYPE_P208OUR_GUID_ENTRY(MEDIASUBTYPE_P208,'802P', 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 38303250-0000-0010-8000-00AA00389B71 'P210' == MEDIASUBTYPE_P210OUR_GUID_ENTRY(MEDIASUBTYPE_P210,'012P', 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 38303250-0000-0010-8000-00AA00389B71 'P216' == MEDIASUBTYPE_P216OUR_GUID_ENTRY(MEDIASUBTYPE_P216,'612P', 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 38303250-0000-0010-8000-00AA00389B71 'P010' == MEDIASUBTYPE_P010OUR_GUID_ENTRY(MEDIASUBTYPE_P010,'010P', 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 38303250-0000-0010-8000-00AA00389B71 'P016' == MEDIASUBTYPE_P016OUR_GUID_ENTRY(MEDIASUBTYPE_P016,'610P', 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 38303250-0000-0010-8000-00AA00389B71 'Y210' == MEDIASUBTYPE_Y210OUR_GUID_ENTRY(MEDIASUBTYPE_Y210,'012Y', 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 38303250-0000-0010-8000-00AA00389B71 'Y216' == MEDIASUBTYPE_Y216OUR_GUID_ENTRY(MEDIASUBTYPE_Y216,'612Y', 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 38303450-0000-0010-8000-00AA00389B71 'P408' == MEDIASUBTYPE_P408OUR_GUID_ENTRY(MEDIASUBTYPE_P408,'804P', 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 3432564E-0000-0010-8000-00AA00389B71 'NV24' == MEDIASUBTYPE_NV24OUR_GUID_ENTRY(MEDIASUBTYPE_NV24,0x3432564E, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 4F303234-0000-0010-8000-00AA00389B71 '420O' == MEDIASUBTYPE_420OOUR_GUID_ENTRY(MEDIASUBTYPE_420O,0x4F303234, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 31434D49-0000-0010-8000-00AA00389B71 'IMC1' == MEDIASUBTYPE_IMC1OUR_GUID_ENTRY(MEDIASUBTYPE_IMC1,0x31434D49, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 32434d49-0000-0010-8000-00AA00389B71 'IMC2' == MEDIASUBTYPE_IMC2OUR_GUID_ENTRY(MEDIASUBTYPE_IMC2,0x32434D49, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 33434d49-0000-0010-8000-00AA00389B71 'IMC3' == MEDIASUBTYPE_IMC3OUR_GUID_ENTRY(MEDIASUBTYPE_IMC3,0x33434D49, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 34434d49-0000-0010-8000-00AA00389B71 'IMC4' == MEDIASUBTYPE_IMC4OUR_GUID_ENTRY(MEDIASUBTYPE_IMC4,0x34434D49, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 30343353-0000-0010-8000-00AA00389B71 'S340' == MEDIASUBTYPE_S340OUR_GUID_ENTRY(MEDIASUBTYPE_S340,0x30343353, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 32343353-0000-0010-8000-00AA00389B71 'S342' == MEDIASUBTYPE_S342OUR_GUID_ENTRY(MEDIASUBTYPE_S342,0x32343353, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// e436eb7f-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_OverlayOUR_GUID_ENTRY(MEDIASUBTYPE_Overlay,0xe436eb7f, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// e436eb80-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_MPEGPacketOUR_GUID_ENTRY(MEDIASUBTYPE_MPEG1Packet,0xe436eb80, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// e436eb81-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_MPEG1PayloadOUR_GUID_ENTRY(MEDIASUBTYPE_MPEG1Payload,0xe436eb81, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// 00000050-0000-0010-8000-00AA00389B71 MEDIASUBTYPE_MPEG1AudioPayloadOUR_GUID_ENTRY(MEDIASUBTYPE_MPEG1AudioPayload,0x00000050, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71)// e436eb82-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_MPEG1SystemStreamOUR_GUID_ENTRY(MEDIATYPE_MPEG1SystemStream,0xe436eb82, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// the next consecutive number is assigned to MEDIATYPE_Stream and appears higher up// e436eb84-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_MPEG1SystemOUR_GUID_ENTRY(MEDIASUBTYPE_MPEG1System,0xe436eb84, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// e436eb85-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_MPEG1VideoCDOUR_GUID_ENTRY(MEDIASUBTYPE_MPEG1VideoCD,0xe436eb85, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// e436eb86-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_MPEG1VideoOUR_GUID_ENTRY(MEDIASUBTYPE_MPEG1Video,0xe436eb86, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// e436eb87-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_MPEG1AudioOUR_GUID_ENTRY(MEDIASUBTYPE_MPEG1Audio,0xe436eb87, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// e436eb88-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_AviOUR_GUID_ENTRY(MEDIASUBTYPE_Avi,0xe436eb88, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// {3DB80F90-9412-11d1-ADED-0000F8754B99} MEDIASUBTYPE_AsfOUR_GUID_ENTRY(MEDIASUBTYPE_Asf,0x3db80f90, 0x9412, 0x11d1, 0xad, 0xed, 0x0, 0x0, 0xf8, 0x75, 0x4b, 0x99)// e436eb89-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_QTMovieOUR_GUID_ENTRY(MEDIASUBTYPE_QTMovie,0xe436eb89, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// 617a7072-0000-0010-8000-00AA00389B71 MEDIASUBTYPE_RpzaOUR_GUID_ENTRY(MEDIASUBTYPE_QTRpza,0x617a7072, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 20636d73-0000-0010-8000-00AA00389B71 MEDIASUBTYPE_SmcOUR_GUID_ENTRY(MEDIASUBTYPE_QTSmc,0x20636d73, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 20656c72-0000-0010-8000-00AA00389B71 MEDIASUBTYPE_RleOUR_GUID_ENTRY(MEDIASUBTYPE_QTRle,0x20656c72, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 6765706a-0000-0010-8000-00AA00389B71 MEDIASUBTYPE_JpegOUR_GUID_ENTRY(MEDIASUBTYPE_QTJpeg,0x6765706a, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// e436eb8a-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_PCMAudio_ObsoleteOUR_GUID_ENTRY(MEDIASUBTYPE_PCMAudio_Obsolete,0xe436eb8a, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// 00000001-0000-0010-8000-00AA00389B71 MEDIASUBTYPE_PCMOUR_GUID_ENTRY(MEDIASUBTYPE_PCM,0x00000001, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71)// e436eb8b-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_WAVEOUR_GUID_ENTRY(MEDIASUBTYPE_WAVE,0xe436eb8b, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// e436eb8c-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_AUOUR_GUID_ENTRY(MEDIASUBTYPE_AU,0xe436eb8c, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// e436eb8d-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_AIFFOUR_GUID_ENTRY(MEDIASUBTYPE_AIFF,0xe436eb8d, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)// 64(d)73(s)76(v)64(d)-0000-0010-8000-00AA00389B71 'dvsd' == MEDIASUBTYPE_dvsdOUR_GUID_ENTRY(MEDIASUBTYPE_dvsd,0x64737664, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 64(d)68(h)76(v)64(d)-0000-0010-8000-00AA00389B71 'dvhd' == MEDIASUBTYPE_dvhdOUR_GUID_ENTRY(MEDIASUBTYPE_dvhd,0x64687664, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 6c(l)73(s)76(v)64(d)-0000-0010-8000-00AA00389B71 'dvsl' == MEDIASUBTYPE_dvslOUR_GUID_ENTRY(MEDIASUBTYPE_dvsl,0x6c737664, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 35(5)32(2)76(v)64(d)-0000-0010-8000-00AA00389B71 'dv25' == MEDIASUBTYPE_dv25OUR_GUID_ENTRY(MEDIASUBTYPE_dv25,0x35327664, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 30(0)35(5)76(v)64(d)-0000-0010-8000-00AA00389B71 'dv50' == MEDIASUBTYPE_dv50OUR_GUID_ENTRY(MEDIASUBTYPE_dv50,0x30357664, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 31(1)68(h)76(v)64(d)-0000-0010-8000-00AA00389B71 'dvh1' == MEDIASUBTYPE_dvh1OUR_GUID_ENTRY(MEDIASUBTYPE_dvh1,0x31687664, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// 6E8D4A22-310C-11d0-B79A-00AA003767A7 MEDIASUBTYPE_Line21_BytePairOUR_GUID_ENTRY(MEDIASUBTYPE_Line21_BytePair,0x6e8d4a22, 0x310c, 0x11d0, 0xb7, 0x9a, 0x0, 0xaa, 0x0, 0x37, 0x67, 0xa7)// 6E8D4A23-310C-11d0-B79A-00AA003767A7 MEDIASUBTYPE_Line21_GOPPacketOUR_GUID_ENTRY(MEDIASUBTYPE_Line21_GOPPacket,0x6e8d4a23, 0x310c, 0x11d0, 0xb7, 0x9a, 0x0, 0xaa, 0x0, 0x37, 0x67, 0xa7)// 6E8D4A24-310C-11d0-B79A-00AA003767A7 MEDIASUBTYPE_Line21_VBIRawDataOUR_GUID_ENTRY(MEDIASUBTYPE_Line21_VBIRawData,0x6e8d4a24, 0x310c, 0x11d0, 0xb7, 0x9a, 0x0, 0xaa, 0x0, 0x37, 0x67, 0xa7)//0AF414BC-4ED2-445e-9839-8F095568AB3C MEDIASUBTYPE_708_608DataOUR_GUID_ENTRY(MEDIASUBTYPE_708_608Data,0xaf414bc, 0x4ed2, 0x445e, 0x98, 0x39, 0x8f, 0x9, 0x55, 0x68, 0xab, 0x3c)// F52ADDAA-36F0-43F5-95EA-6D866484262A MEDIASUBTYPE_DtvCcDataOUR_GUID_ENTRY(MEDIASUBTYPE_DtvCcData,0xF52ADDAA, 0x36F0, 0x43F5, 0x95, 0xEA, 0x6D, 0x86, 0x64, 0x84, 0x26, 0x2A)// 7EA626DB-54DA-437b-BE9F-F73073ADFA3C MEDIASUBTYPE_CC_CONTAINEROUR_GUID_ENTRY(MEDIASUBTYPE_CC_CONTAINER,0x7ea626db, 0x54da, 0x437b, 0xbe, 0x9f, 0xf7, 0x30, 0x73, 0xad, 0xfa, 0x3c)// F72A76E3-EB0A-11D0-ACE4-0000C0CC16BA MEDIASUBTYPE_TELETEXTOUR_GUID_ENTRY(MEDIASUBTYPE_TELETEXT,0xf72a76e3, 0xeb0a, 0x11d0, 0xac, 0xe4, 0x00, 0x00, 0xc0, 0xcc, 0x16, 0xba)// 663DA43C-03E8-4e9a-9CD5-BF11ED0DEF76 MEDIASUBTYPE_VBIOUR_GUID_ENTRY(MEDIASUBTYPE_VBI,0x663da43c, 0x3e8, 0x4e9a, 0x9c, 0xd5, 0xbf, 0x11, 0xed, 0xd, 0xef, 0x76)// 2791D576-8E7A-466F-9E90-5D3F3083738B MEDIASUBTYPE_WSSOUR_GUID_ENTRY(MEDIASUBTYPE_WSS,0x2791D576, 0x8E7A, 0x466F, 0x9E, 0x90, 0x5D, 0x3F, 0x30, 0x83, 0x73, 0x8B)// 01CA73E3-DCE6-4575-AFE1-2BF1C902CAF3 MEDIASUBTYPE_XDSOUR_GUID_ENTRY(MEDIASUBTYPE_XDS,0x1ca73e3, 0xdce6, 0x4575, 0xaf, 0xe1, 0x2b, 0xf1, 0xc9, 0x2, 0xca, 0xf3)// A1B3F620-9792-4d8d-81A4-86AF25772090 MEDIASUBTYPE_VPSOUR_GUID_ENTRY(MEDIASUBTYPE_VPS,0xa1b3f620, 0x9792, 0x4d8d, 0x81, 0xa4, 0x86, 0xaf, 0x25, 0x77, 0x20, 0x90)// derived from WAVE_FORMAT_DRM// 00000009-0000-0010-8000-00aa00389b71OUR_GUID_ENTRY(MEDIASUBTYPE_DRM_Audio,0x00000009, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// derived from WAVE_FORMAT_IEEE_FLOAT// 00000003-0000-0010-8000-00aa00389b71OUR_GUID_ENTRY(MEDIASUBTYPE_IEEE_FLOAT,0x00000003, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// derived from WAVE_FORMAT_DOLBY_AC3_SPDIF// 00000092-0000-0010-8000-00aa00389b71OUR_GUID_ENTRY(MEDIASUBTYPE_DOLBY_AC3_SPDIF,0x00000092, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// derived from WAVE_FORMAT_RAW_SPORT// 00000240-0000-0010-8000-00aa00389b71OUR_GUID_ENTRY(MEDIASUBTYPE_RAW_SPORT,0x00000240, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)// derived from wave format tag 0x241, call it SPDIF_TAG_241h for now// 00000241-0000-0010-8000-00aa00389b71OUR_GUID_ENTRY(MEDIASUBTYPE_SPDIF_TAG_241h,0x00000241, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
五.
各种格式测试
以下以
GB888
和
Y800,NV12
为例，其他的格式类似
.
首先需要修改描述符
RGB888
uuids.h
找到
guid
// e436eb7d-524f-11ce-9f53-0020af0ba770 MEDIASUBTYPE_RGB24OUR_GUID_ENTRY(MEDIASUBTYPE_RGB24,0xe436eb7d, 0x524f, 0x11ce, 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70)
Y800
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/usb/uvc.h?h=v6.9-rc5
下找到
NV12
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/usb/uvc.h?h=v6.9-rc5
下找到
Uuids.h
下找到
// 3231564E-0000-0010-8000-00AA00389B71 'NV12' == MEDIASUBTYPE_NV12OUR_GUID_ENTRY(MEDIASUBTYPE_NV12,0x3231564E, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71)
完整的配置描述符如下，这里是一个
UVC+UAC+CDC
的设备
.
生成测试图片
static uint32_t update_buffer_rgb888(uint8_t* buffer, uint32_t h_size, uint32_t v_size){static unsigned int index = 0;uint8_t r = 0;uint8_t g = 0;uint8_t b = 0;uint32_t itemnum = sizeof(color_table)/sizeof(color_table[0]);int posindex;uint8_t* p = (uint8_t*)buffer;if(index >= itemnum){index = 0;}for(uint32_t pos=0; pos{posindex = (index + pos)%itemnum;/* 显示彩色条纹, 条纹开始颜色依次变化 */r = ((color_table[posindex] >> 16) & 0xFF);g = ((color_table[posindex] >> 8) & 0xFF);b = ((color_table[posindex] >> 0) & 0xFF);for(uint32_t i=0;i{*p++ = r;*p++ = g;*p++ = b;}}index++;return h_size*v_size*3;}/*Y = 0.298R + 0.612G + 0.117B; [13,235]U = -0.168R - 0.330G + 0.498B + 128; [16,239]V = 0.449R - 0.435G - 0.083B + 128; [16,239]*/static uint32_t update_buffer_nv12(uint8_t* buffer, uint32_t h_size, uint32_t v_size){uint8_t* py = (uint8_t*)buffer;uint8_t* puv = (uint8_t*)(buffer+h_size*v_size);static unsigned int index = 0;uint8_t y = 0;uint8_t u = 0;uint8_t v = 0;uint8_t r = 0;uint8_t g = 0;uint8_t b = 0;uint8_t itemnum = sizeof(color_table)/sizeof(color_table[0]);int posindex;if(index >= itemnum){index = 0;}for(int pos=0; pos{posindex = (index + pos)%itemnum;/* 显示彩色条纹, 条纹开始颜色依次变化 */r = (color_table[posindex] >> 16) & 0xFF;g = (color_table[posindex] >> 8) & 0xFF;b = (color_table[posindex] >> 0) & 0xFF;y = (0.298*r + 0.612*g + 0.117*b);u = (-0.168*r - 0.330*g + 0.498*b + 128);v = (0.449*r - 0.435*g - 0.083*b + 128);if(y>235){y=235;}if(y<16){y=16;}if(u>239){u=239;}if(u<16){u=16;}if(v>239){v=239;}if(v<16){v=16;}for(uint32_t i=0;i{*py++ = y;}for(uint32_t i=0;i<(h_size*v_size/4)/itemnum;i++){*puv++ = u;*puv++ = v;}}index++;return h_size*v_size*3/2;}/*Y = 0.298R + 0.612G + 0.117B; [13,235]U = -0.168R - 0.330G + 0.498B + 128; [16,239]V = 0.449R - 0.435G - 0.083B + 128; [16,239]*/static uint32_t update_buffer_y800(uint8_t* buffer, uint32_t h_size, uint32_t v_size){uint8_t* py = (uint8_t*)buffer;static unsigned int index = 0;int y = 0;uint8_t r = 0;uint8_t g = 0;uint8_t b = 0;uint8_t itemnum = sizeof(color_table)/sizeof(color_table[0]);int posindex;if(index >= itemnum){index = 0;}for(int pos=0; pos{posindex = (index + pos)%itemnum;/* 显示彩色条纹, 条纹开始颜色依次变化 */r = (color_table[posindex] >> 16) & 0xFF;g = (color_table[posindex] >> 8) & 0xFF;b = (color_table[posindex] >> 0) & 0xFF;y = (0.298*r + 0.612*g + 0.117*b);if(y>235){y=235;}if(y<16){y=16;}for(uint32_t i=0;i{*py++ = y;}}index++;return h_size*v_size;}
根据当前选择的格式发送不同格式图片
while(1){int itf;uint32_t len = 0;if ((itf = usbd_uvc_get_onoffstate(0)) <= 0){s_uvc_busy_u8 = 0; /* UVC没有打开则不能传输 *///printf("uvc off\r\n");}else{if (s_uvc_busy_u8 == 0){uint8_t format;uint8_t frame;if(0 == usbd_uvc_get_format_frame_index(0,&format,&frame)){printf("format:%d,frame:%d\n",format,frame);}if(format == 1){len = update_buffer_rgb888((uint8_t*)DDR_IN_BUFFER_ADDR,H_SIZE, V_SIZE);}else if(format == 2){len = update_buffer_nv12((uint8_t*)DDR_IN_BUFFER_ADDR,H_SIZE, V_SIZE);}else if(format == 3){len = update_buffer_y800((uint8_t*)DDR_IN_BUFFER_ADDR,H_SIZE, V_SIZE);}s_uvc_busy_u8 = 1; /* UVC打开且当前没有在传输则进行传输 */if (0 != usbd_uvc_sendframe(0, DDR_IN_BUFFER_ADDR), len, uvc_send_cb){s_uvc_busy_u8 = 0; /* 返回非0,实际并没有发送,此时不能置位标志,否则后面标志无法自动清零 */}//while(s_uvc_busy_u8 == 1);}else{//printf("uvc busy\r\n");os_delay(10);}}}
切换到格式
3
的的
probe
和
commit
过程如下
Device Address Length Phase Data Description Delta Cmd.Phase.Ofs(rep) Date Time Driver------ ------------------- -------- ----- ------------------------------------------------------------------------------------------------------ -------------------------------- ----- ------------------ ---------- ------------ ------------63.0 CTL 01 0b 01 00 03 00 00 00 SET INTERFACE 6.0sc 1.1.0(2) 2024/04/28 19:16:59.308 usbaudio63.0 CTL 01 0b 00 00 03 00 00 00 SET INTERFACE 3.7ms 2.1.0(2) 2024/04/28 19:16:59.311 usbaudio62.0 CTL a1 81 00 01 01 00 1a 00 GET CUR 2.1sc 5.1.0 2024/04/28 19:17:01.491 ntoskrnl62.0 26 IN 00 00 03 01 9a e9 03 00 00 00 00 00 00 00 00 00 00 00 00 c0 3f 00 00 00 00 00 ....................?..... 94us 5.2.0 2024/04/28 19:17:01.49162.0 CTL 21 01 00 01 01 00 1a 00 SET CUR 18us 6.1.0 2024/04/28 19:17:01.491 ntoskrnl62.0 26 OUT 00 00 03 01 9a e9 03 00 00 00 00 00 00 00 00 00 00 00 00 c0 3f 00 00 00 00 00 ....................?..... 112us 6.2.0 2024/04/28 19:17:01.49162.0 CTL a1 81 00 01 01 00 1a 00 GET CUR 11us 7.1.0 2024/04/28 19:17:01.491 ntoskrnl62.0 26 IN 00 00 03 01 9a e9 03 00 00 00 00 00 00 00 00 00 00 00 00 c0 3f 00 00 00 00 00 ....................?..... 85us 7.2.0 2024/04/28 19:17:01.49162.0 CTL a1 83 00 01 01 00 1a 00 GET MAX 10us 8.1.0 2024/04/28 19:17:01.491 ntoskrnl62.0 26 IN 00 00 01 05 00 35 0c 00 00 00 00 00 00 00 00 00 00 00 00 c0 3f 00 ff 03 00 00 .....5..............?..... 98us 8.2.0 2024/04/28 19:17:01.49162.0 CTL a1 82 00 01 01 00 1a 00 GET MIN 8us 9.1.0 2024/04/28 19:17:01.491 ntoskrnl62.0 26 IN 00 00 01 01 80 1a 06 00 00 00 00 00 00 00 00 00 00 00 00 c0 3f 00 ff 03 00 00 ....................?..... 116us 9.2.0 2024/04/28 19:17:01.49163.0 CTL 01 0b 01 00 03 00 00 00 SET INTERFACE 218ms 10.1.0 2024/04/28 19:17:01.710 usbaudio62.0 CTL 21 01 00 01 01 00 1a 00 SET CUR 98ms 11.1.0 2024/04/28 19:17:01.809 ntoskrnl62.0 26 OUT 00 00 03 01 9a e9 03 00 00 00 00 00 00 00 00 00 00 00 00 c0 3f 00 00 00 00 00 ....................?..... 257us 11.2.0 2024/04/28 19:17:01.81062.0 CTL a1 81 00 01 01 00 1a 00 GET CUR 14us 12.1.0 2024/04/28 19:17:01.810 ntoskrnl62.0 26 IN 00 00 03 01 9a e9 03 00 00 00 00 00 00 00 00 00 00 00 00 c0 3f 00 00 00 00 00 ....................?..... 97us 12.2.0 2024/04/28 19:17:01.81062.0 CTL 21 01 00 02 01 00 1a 00 SET CUR 12us 13.1.0 2024/04/28 19:17:01.810 ntoskrnl62.0 26 OUT 00 00 03 01 9a e9 03 00 00 00 00 00 00 00 00 00 00 00 00 c0 3f 00 00 00 00 00 ....................?..... 120us 13.2.0 2024/04/28 19:17:01.81062.0 CTL 01 0b 01 00 01 00 00 00 SET INTERFACE 12us 14.1.0 2024/04/28 19:17:01.810 ntoskrnl62.0 CTL 01 0b 00 00 01 00 00 00 SET INTERFACE 3.1sc 15.1.0 2024/04/28 19:17:05.002 ntoskrnl63.0 CTL 01 0b 00 00 03 00 00 00 SET INTERFACE 52ms 16.1.0 2024/04/28 19:17:05.055 usbaudio
六.
总结
以上分享了
UVC
的非压缩帧格式
,
除了规格书推荐的几种常见格式
,
实际不同平台的主机系统可能会支持更多的格式
,
当然不同平台支持的格式也可能不一样，以上分享了如何去查找
linux
和
windows
下支持的格式
,
并进行了多帧格式测试。
七. 附录整 个配置描述符
Configuration Descriptor -------------------bLength : 0x09 (9 bytes)bDescriptorType : 0x02 (Configuration Descriptor)wTotalLength : 0x0287 (647 bytes)bNumInterfaces : 0x07 (7 Interfaces)bConfigurationValue : 0x01 (Configuration 1)iConfiguration : 0x00 (No String Descriptor)bmAttributes : 0x80D7: Reserved, set 1 : 0x01D6: Self Powered : 0x00 (no)D5: Remote Wakeup : 0x00 (no): Reserved, set 0 : 0x00MaxPower : 0xC8 (400 mA)Data (HexDump) : 09 02 87 02 07 01 00 80 C8 08 0B 00 02 0E 03 00 ................05 09 04 00 00 00 0E 01 00 05 0D 24 01 00 01 50 ...........$...P00 80 C3 C9 01 01 01 12 24 02 01 01 02 00 00 00 ........$.......00 00 00 00 00 03 0A 00 00 0B 24 05 02 01 00 00 ..........$.....02 7B 07 00 1D 24 06 03 70 33 F0 28 11 63 2E 4A .{...$..p3.(.c.JBA 2C 68 90 EB 33 40 16 08 01 02 04 FF FF FF FF .,h..3@.........00 09 24 03 05 01 01 00 04 00 09 04 01 00 00 0E ..$.............02 00 00 13 24 01 03 E8 00 81 00 05 00 00 00 02 ....$...........00 00 00 00 00 00 1B 24 04 01 01 7D EB 36 E4 4F .......$...}.6.O52 CE 11 9F 53 00 20 AF 0B A7 70 18 01 00 00 00 R...S. ...p.....00 26 24 05 01 02 00 05 D0 02 00 00 77 01 00 00 .&$.........w...77 01 00 20 1C 00 9A E9 03 00 03 0A 8B 02 00 9A w.. ............E9 03 00 40 42 0F 00 06 24 0D 01 01 04 1B 24 04 ...@B...$.....$.02 01 4E 56 31 32 00 00 10 00 80 00 00 AA 00 38 ..NV12.........89B 71 0C 01 00 00 00 00 26 24 05 01 02 00 05 D0 .q......&$......02 00 00 77 01 00 00 77 01 00 20 1C 00 9A E9 03 ...w...w.. .....00 03 0A 8B 02 00 9A E9 03 00 40 42 0F 00 06 24 ..........@B...$0D 01 01 04 1B 24 04 03 01 59 38 30 30 00 00 10 .....$...Y800...00 80 00 00 AA 00 38 9B 71 08 01 00 00 00 00 26 ......8.q......&24 05 01 02 00 05 D0 02 00 00 77 01 00 00 77 01 $.........w...w.00 20 1C 00 9A E9 03 00 03 0A 8B 02 00 9A E9 03 . ..............00 40 42 0F 00 06 24 0D 01 01 04 09 04 01 01 01 .@B...$.........0E 02 00 00 07 05 81 05 FF 13 01 08 0B 02 03 01 ................02 00 07 09 04 02 00 00 01 01 00 07 0A 24 01 00 .............$..01 46 00 02 03 04 0C 24 02 01 01 01 00 01 04 00 .F.....$........00 00 09 24 06 02 01 01 01 02 00 09 24 03 03 01 ...$........$...03 00 02 00 0C 24 02 04 01 02 00 01 00 00 00 00 .....$..........09 24 06 05 04 01 43 00 00 07 24 05 07 01 05 00 .$....C...$.....09 24 03 06 01 01 02 07 00 09 04 03 00 00 01 02 .$..............00 00 09 04 03 01 01 01 02 00 00 07 24 01 01 01 ............$...01 00 0B 24 02 01 01 02 10 01 80 3E 00 09 05 02 ...$.......>....09 20 00 04 00 00 07 25 01 00 00 00 00 09 04 04 . .....%........00 00 01 02 00 00 09 04 04 01 01 01 02 00 00 07 ................24 01 06 01 01 00 0B 24 02 01 01 02 10 01 80 3E $......$.......>00 09 05 82 05 20 00 04 00 00 07 25 01 00 00 00 ..... .....%....00 08 0B 05 02 02 02 01 00 09 04 05 00 00 02 02 ................01 00 05 24 00 10 01 05 24 01 00 01 04 24 02 02 ...$....$....$..05 24 06 00 01 09 04 06 00 02 0A 00 00 00 07 05 .$..............83 02 00 02 00 07 05 03 02 00 02 00 12 01 00 02 ................EF 02 01 40 4A 4C 55 4C 00 01 01 02 00 01 00 00 ...@JLUL........0A 06 00 02 EF 02 01 .......IAD Descriptor --------------------bLength : 0x08 (8 bytes)bDescriptorType : 0x0B (Interface Association Descriptor)bFirstInterface : 0x00 (Interface 0)bInterfaceCount : 0x02 (2 Interfaces)bFunctionClass : 0x0E (Video)bFunctionSubClass : 0x03 (Video Interface Collection)bFunctionProtocol : 0x00 (PC_PROTOCOL_UNDEFINED)iFunction : 0x05 (String Descriptor 5)Language 0x0409 : "XXXX USB CAMERA"Data (HexDump) : 08 0B 00 02 0E 03 00 05 ........Interface Descriptor -----------------bLength : 0x09 (9 bytes)bDescriptorType : 0x04 (Interface Descriptor)bInterfaceNumber : 0x00 (Interface 0)bAlternateSetting : 0x00bNumEndpoints : 0x00 (Default Control Pipe only)bInterfaceClass : 0x0E (Video)bInterfaceSubClass : 0x01 (Video Control)bInterfaceProtocol : 0x00iInterface : 0x05 (String Descriptor 5)Language 0x0409 : "XXXX USB CAMERA"Data (HexDump) : 09 04 00 00 00 0E 01 00 05 .........Video Control Interface Header Descriptor -----bLength : 0x0D (13 bytes)bDescriptorType : 0x24 (Video Control Interface)bDescriptorSubtype : 0x01 (Video Control Header)bcdUVC : 0x0100 (UVC Version 1.00)wTotalLength : 0x0050 (80 bytes)dwClockFreq : 0x01C9C380 (30 MHz)bInCollection : 0x01 (1 VideoStreaming interface): 0x01 (Interface 1)Data (HexDump) : 0D 24 01 00 01 50 00 80 C3 C9 01 01 01 .$...P.......Video Control Input Terminal Descriptor ------bLength : 0x12 (18 bytes)bDescriptorType : 0x24 (Video Control Interface)bDescriptorSubtype : 0x02 (Input Terminal)bTerminalID : 0x01 (1)wTerminalType : 0x0201 (ITT_CAMERA)bAssocTerminal : 0x00 (Not associated with an Output Terminal)iTerminal : 0x00 (No String Descriptor)Camera Input Terminal Data:wObjectiveFocalLengthMin : 0x0000wObjectiveFocalLengthMax : 0x0000wOcularFocalLength : 0x0000bControlSize : 0x03 (3 bytes)bmControls : 0x0A, 0x00, 0x00D0 : 0 no - Scanning ModeD1 : 1 yes - Auto-Exposure ModeD2 : 0 no - Auto-Exposure PriorityD3 : 1 yes - Exposure Time (Absolute)D4 : 0 no - Exposure Time (Relative)D5 : 0 no - Focus (Absolute)D6 : 0 no - Focus (Relative)D7 : 0 no - Iris (Absolute)D8 : 0 no - Iris (Relative)D9 : 0 no - Zoom (Absolute)D10 : 0 no - Zoom (Relative)D11 : 0 no - Pan (Absolute)D12 : 0 no - Pan (Relative)D13 : 0 no - Roll (Absolute)D14 : 0 no - Roll (Relative)D15 : 0 no - Tilt (Absolute)D16 : 0 no - Tilt (Relative)D17 : 0 no - Focus AutoD18 : 0 no - ReservedD19 : 0 no - ReservedD20 : 0 no - ReservedD21 : 0 no - ReservedD22 : 0 no - ReservedD23 : 0 no - ReservedData (HexDump) : 12 24 02 01 01 02 00 00 00 00 00 00 00 00 03 0A .$..............00 00 ..Video Control Processing Unit Descriptor -----bLength : 0x0B (11 bytes)bDescriptorType : 0x24 (Video Control Interface)bDescriptorSubtype : 0x05 (Processing Unit)bUnitID : 0x02 (2)bSourceID : 0x01 (1)wMaxMultiplier : 0x0000bControlSize : 0x02 (2 bytes)bmControls : 0x7B, 0x07D0 : 1 yes - BrightnessD1 : 1 yes - ContrastD2 : 0 no - HueD3 : 1 yes - SaturationD4 : 1 yes - SharpnessD5 : 1 yes - GammaD6 : 1 yes - White Balance TemperatureD7 : 0 no - White Balance ComponentD8 : 1 yes - Backlight CompensationD9 : 1 yes - GainD10 : 1 yes - Power Line FrequencyD11 : 0 no - Hue, AutoD12 : 0 no - White Balance Temperature, AutoD13 : 0 no - White Balance Component, AutoD14 : 0 no - Digital MultiplierD15 : 0 no - Digital Multiplier LimitiProcessing : 0x00 (No String Descriptor)Data (HexDump) : 0B 24 05 02 01 00 00 02 7B 07 00 .$......{..Video Control Extension Unit Descriptor -----bLength : 0x1D (29 bytes)bDescriptorType : 0x24 (Video Control Interface)bDescriptorSubtype : 0x06 (Extension Unit)bUnitID : 0x03 (ID 3)guidExtensionCode : {28F03370-6311-4A2E-BA2C-6890EB334016}bNumControls : 0x08 (8 Controls)bNrInPins : 0x01 (1 Input Pin): 0x02bControlSize : 0x04 (4 bytes)bmControls : 0xFF, 0xFF, 0xFF, 0xFFD0 : 1 yes - Vendor-Specific (Optional)D1 : 1 yes - Vendor-Specific (Optional)D2 : 1 yes - Vendor-Specific (Optional)D3 : 1 yes - Vendor-Specific (Optional)D4 : 1 yes - Vendor-Specific (Optional)D5 : 1 yes - Vendor-Specific (Optional)D6 : 1 yes - Vendor-Specific (Optional)D7 : 1 yes - Vendor-Specific (Optional)D8 : 1 yes - Vendor-Specific (Optional)D9 : 1 yes - Vendor-Specific (Optional)D10 : 1 yes - Vendor-Specific (Optional)D11 : 1 yes - Vendor-Specific (Optional)D12 : 1 yes - Vendor-Specific (Optional)D13 : 1 yes - Vendor-Specific (Optional)D14 : 1 yes - Vendor-Specific (Optional)D15 : 1 yes - Vendor-Specific (Optional)D16 : 1 yes - Vendor-Specific (Optional)D17 : 1 yes - Vendor-Specific (Optional)D18 : 1 yes - Vendor-Specific (Optional)D19 : 1 yes - Vendor-Specific (Optional)D20 : 1 yes - Vendor-Specific (Optional)D21 : 1 yes - Vendor-Specific (Optional)D22 : 1 yes - Vendor-Specific (Optional)D23 : 1 yes - Vendor-Specific (Optional)D24 : 1 yes - Vendor-Specific (Optional)D25 : 1 yes - Vendor-Specific (Optional)D26 : 1 yes - Vendor-Specific (Optional)D27 : 1 yes - Vendor-Specific (Optional)D28 : 1 yes - Vendor-Specific (Optional)D29 : 1 yes - Vendor-Specific (Optional)D30 : 1 yes - Vendor-Specific (Optional)D31 : 1 yes - Vendor-Specific (Optional)iExtension : 0x00 (No String Descriptor)Data (HexDump) : 1D 24 06 03 70 33 F0 28 11 63 2E 4A BA 2C 68 90 .$..p3.(.c.J.,h.EB 33 40 16 08 01 02 04 FF FF FF FF 00 .3@..........Video Control Output Terminal Descriptor ------bLength : 0x09 (9 bytes)bDescriptorType : 0x24 (Video Control Interface)bDescriptorSubtype : 0x03 (Output Terminal)bTerminalID : 0x05 (5)wTerminalType : 0x0101 (TT_STREAMING)bAssocTerminal : 0x00 (Not associated with an Input Terminal)bSourceID : 0x04 (4)iTerminal : 0x00 (No String Descriptor)Data (HexDump) : 09 24 03 05 01 01 00 04 00 .$.......Interface Descriptor -----------------bLength : 0x09 (9 bytes)bDescriptorType : 0x04 (Interface Descriptor)bInterfaceNumber : 0x01 (Interface 1)bAlternateSetting : 0x00bNumEndpoints : 0x00 (Default Control Pipe only)bInterfaceClass : 0x0E (Video)bInterfaceSubClass : 0x02 (Video Streaming)bInterfaceProtocol : 0x00iInterface : 0x00 (No String Descriptor)Data (HexDump) : 09 04 01 00 00 0E 02 00 00 .........VC-Specific VS Video Input Header Descriptor -----bLength : 0x13 (19 bytes)bDescriptorType : 0x24 (Video Streaming Interface)bDescriptorSubtype : 0x01 (Input Header)bNumFormats : 0x03wTotalLength : 0x00E8 (232 bytes)bEndpointAddress : 0x81 (Direction=IN EndpointID=1)bmInfo : 0x00 (Dynamic Format Change not supported)bTerminalLink : 0x05 (Output Terminal ID 5)bStillCaptureMethod : 0x00 (No Still Capture)nbTriggerSupport : 0x00 (Hardware Triggering not supported)bTriggerUsage : 0x00 (Host will initiate still image capture)bControlSize : 0x02 (2 bytes each)Video Payload Format 1 : 0x00 0x00D0 : 0 no - Key Frame RateD1 : 0 no - P Frame RateD2 : 0 no - Compression QualityD3 : 0 no - Compression Window SizeD4 : 0 no - Generate Key FrameD5 : 0 no - Update Frame SegmentD6 : 0 no - ReservedD7 : 0 no - ReservedVideo Payload Format 2 : 0x00 0x00D0 : 0 no - Key Frame RateD1 : 0 no - P Frame RateD2 : 0 no - Compression QualityD3 : 0 no - Compression Window SizeD4 : 0 no - Generate Key FrameD5 : 0 no - Update Frame SegmentD6 : 0 no - ReservedD7 : 0 no - ReservedVideo Payload Format 3 : 0x00 0x00D0 : 0 no - Key Frame RateD1 : 0 no - P Frame RateD2 : 0 no - Compression QualityD3 : 0 no - Compression Window SizeD4 : 0 no - Generate Key FrameD5 : 0 no - Update Frame SegmentD6 : 0 no - ReservedD7 : 0 no - ReservedData (HexDump) : 13 24 01 03 E8 00 81 00 05 00 00 00 02 00 00 00 .$..............00 00 00 ...VS Uncompressed Format Type Descriptor --------bLength : 0x1B (27 bytes)bDescriptorType : 0x24 (Video Streaming Interface)bDescriptorSubtype : 0x04 (Uncompressed Format Type)bFormatIndex : 0x01 (1)bNumFrameDescriptors : 0x01 (1 Frame Descriptor)guidFormat : {E436EB7D-524F-11CE-9F53-0020AF0BA770} (unknown)bBitsPerPixel : 0x18 (24 bits per pixel)bDefaultFrameIndex : 0x01 (Index 1)bAspectRatioX : 0x00bAspectRatioY : 0x00bmInterlaceFlags : 0x00D0 IL stream or variable: 0 (no)D1 Fields per frame : 0 (2 fields)D2 Field 1 first : 0 (no)D3 Reserved : 0Field pattern : 0 (Field 1 only)Display Mode : 0 (Bob only)bCopyProtect : 0x00 (No restrictions)Data (HexDump) : 1B 24 04 01 01 7D EB 36 E4 4F 52 CE 11 9F 53 00 .$...}.6.OR...S.20 AF 0B A7 70 18 01 00 00 00 00 ...p......VS Uncompressed Frame Type Descriptor --------This is the Default (optimum) Frame indexbLength : 0x26 (38 bytes)bDescriptorType : 0x24 (Video Streaming Interface)bDescriptorSubtype : 0x05 (Uncompressed Frame Type)bFrameIndex : 0x01bmCapabilities : 0x02wWidth : 0x0500 (1280)wHeight : 0x02D0 (720)dwMinBitRate : 0x01770000 (24576000 bps -> 3.72 MB/s)dwMaxBitRate : 0x01770000 (24576000 bps -> 3.72 MB/s)dwMaxVideoFrameBufferSize: 0x001C2000 (1843200 bytes)dwDefaultFrameInterval : 0x0003E99A (25.6410 ms -> 39.0000 fps)bFrameIntervalType : 0x03 (3 discrete frame intervals supported): 0x00028B0A (16.6666 ms -> 60.0000 fps): 0x0003E99A (25.6410 ms -> 39.0000 fps): 0x000F4240 (100.0000 ms -> 10.0000 fps)Data (HexDump) : 26 24 05 01 02 00 05 D0 02 00 00 77 01 00 00 77 &$.........w...w01 00 20 1C 00 9A E9 03 00 03 0A 8B 02 00 9A E9 .. .............03 00 40 42 0F 00 ..@B..VS Color Matching Descriptor Descriptor -------bLength : 0x06 (6 bytes)bDescriptorType : 0x24 (Video Streaming Interface)bDescriptorSubtype : 0x0D (Color Matching)bColorPrimaries : 0x01 (BT.709, sRGB)bTransferCharacteristics : 0x01 (BT.709)bMatrixCoefficients : 0x04 (SMPTE 170M)Data (HexDump) : 06 24 0D 01 01 04 .$....VS Uncompressed Format Type Descriptor --------bLength : 0x1B (27 bytes)bDescriptorType : 0x24 (Video Streaming Interface)bDescriptorSubtype : 0x04 (Uncompressed Format Type)bFormatIndex : 0x02 (2)bNumFrameDescriptors : 0x01 (1 Frame Descriptor)guidFormat : {3231564E-0000-0010-8000-00AA00389B71} (NV12)bBitsPerPixel : 0x0C (12 bits per pixel)bDefaultFrameIndex : 0x01 (Index 1)bAspectRatioX : 0x00bAspectRatioY : 0x00bmInterlaceFlags : 0x00D0 IL stream or variable: 0 (no)D1 Fields per frame : 0 (2 fields)D2 Field 1 first : 0 (no)D3 Reserved : 0Field pattern : 0 (Field 1 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03 00 03 0A 8B 02 00 9A E9 .. .............03 00 40 42 0F 00 ..@B..VS Color Matching Descriptor Descriptor -------bLength : 0x06 (6 bytes)bDescriptorType : 0x24 (Video Streaming Interface)bDescriptorSubtype : 0x0D (Color Matching)bColorPrimaries : 0x01 (BT.709, sRGB)bTransferCharacteristics : 0x01 (BT.709)bMatrixCoefficients : 0x04 (SMPTE 170M)Data (HexDump) : 06 24 0D 01 01 04 .$....VS Uncompressed Format Type Descriptor --------bLength : 0x1B (27 bytes)bDescriptorType : 0x24 (Video Streaming Interface)bDescriptorSubtype : 0x04 (Uncompressed Format Type)bFormatIndex : 0x03 (3)bNumFrameDescriptors : 0x01 (1 Frame Descriptor)guidFormat : {30303859-0000-0010-8000-00AA00389B71} (Y800)bBitsPerPixel : 0x08 (8 bits per pixel)bDefaultFrameIndex : 0x01 (Index 1)bAspectRatioX : 0x00bAspectRatioY : 0x00bmInterlaceFlags : 0x00D0 IL stream or variable: 0 (no)D1 Fields per frame : 0 (2 fields)D2 Field 1 first : 0 (no)D3 Reserved : 0Field pattern : 0 (Field 1 only)Display Mode : 0 (Bob 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