uvc nv12 1080p 断流
hi 站长，请教一个问题，我在使用potplayer播放uvc camera的nv12格式1080p的流，前面几秒钟可以正常，几秒之后就卡死，然后通过加trace发现被阻塞在了下面这个ioctl，ioctl(fd, VIDIOC_QBUF，&uvcBuf)
百度有提到可能是数据量太大导致来不及传输，但是板子上都是usb3.0的接口，理论上应该是够得，有大佬知道是为什么吗？
ps：关掉potplayer然后重新打开摄像头又可以继续播放几秒钟。
你用的什么的传输方式,BULK 还是 ISO?
另外，你可以在Windows加测试一下是否还是同样的问题。
或者用winpcap，bushound、usb总线分析仪抓包来看你的数据。
NV12的数据大小我记得是宽X高X3/2
如一个6x4的图像其数据布局如下：
所以，此时数据的大小是固定的，所以在使用负载数据头进行数据传输的过程中，每一帧的数据大小应一致。
而你所说的这个问题，很有可能前期数据帧长度一致可以显示出来，后面因为传输数据包的丢失或者一帧的数据大小和实际的长度不一致，导致系统判定为无效包，所以一直在等待有效包。
- 用图像像素格式 NV12、NV2、I420、YV12、YUYV：https://www.usbzh.com/article/detail-214.html
- VC 负载数据头 Payload Header Information-摄像头数据包格式分析 https://www.usbzh.com/article/detail-7.html
hi 站长，在windows和linux都是同样的问题，使用的ISO传输，用bushound抓包了一下，发现一个问题，在我这里抓包的时候，每一包数据都特别大，然后在另一个同学那里抓包感觉他的数据长度就比较短，不知道是不是这个原因导致他有时候能够差多多半小时，我这里却只有打开设备那一下子。
下面是抓包数据：上面这个是我这边的抓包，下面那个是我同学抓包。
从上面的抓包数据来看，首先发了一个很大的全0数据，然后确实有几帧数据大小一致，最后一帧大小不对就直接卡死。
但是从下面的抓包来看，好像数据的大小并没有保持一致，
Device Address Length Phase Data Description Cmd.Phase.Ofs(rep)
------ ------------------- -------- ----- ------------------------------------------------------------------------------------------------------ -------------------------------- ------------------
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 1.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 25 00 00 00 ........%... 1.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 2.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 3.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 25 00 00 00 00 00 00 00 ........%....... 3.2.0
29.0 CTL 01 03 00 00 02 00 00 00 SET FEATURE 4.1.0(2)
29.0 CTL 01 03 00 00 02 01 00 00 SET FEATURE 5.1.0(2)
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 8.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 26 00 00 00 ........&... 8.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 9.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 10.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 26 00 00 00 00 00 00 00 ........&....... 10.2.0
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 11.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 27 00 00 00 ........'... 11.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 12.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 13.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 27 00 00 00 00 00 00 00 ........'....... 13.2.0
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 14.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 28 00 00 00 ........(... 14.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 15.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 16.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 28 00 00 00 00 00 00 00 ........(....... 16.2.0
29.0 CTL 01 03 00 00 02 00 00 00 SET FEATURE 17.1.0
31.0 CTL a1 81 00 01 03 00 1a 00 GET CUR 18.1.0
31.0 26 IN 01 00 01 01 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 46 05 00 00 0c 00 00 ...................F...... 18.2.0
31.0 CTL 21 01 00 01 03 00 1a 00 SET CUR 19.1.0
31.0 26 OUT 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 46 05 00 00 00 00 00 ...................F...... 19.2.0
31.0 CTL a1 81 00 01 03 00 1a 00 GET CUR 20.1.0
31.0 26 IN 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 76 2f 00 00 0c 00 00 ...................v/..... 20.2.0
31.0 CTL a1 83 00 01 03 00 1a 00 GET MAX 21.1.0
31.0 26 IN 01 00 04 07 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 d8 bd 00 00 0c 00 00 .......................... 21.2.0
31.0 CTL a1 82 00 01 03 00 1a 00 GET MIN 22.1.0
31.0 26 IN 01 00 01 01 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 46 05 00 00 0c 00 00 ...................F...... 22.2.0
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 23.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 29 00 00 00 ........)... 23.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 24.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 25.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 29 00 00 00 00 00 00 00 ........)....... 25.2.0
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 26.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 2a 00 00 00 ........*... 26.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 27.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 28.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 2a 00 00 00 00 00 00 00 ........*....... 28.2.0
31.0 CTL 21 01 00 01 03 00 1a 00 SET CUR 29.1.0
31.0 26 OUT 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 76 2f 00 00 00 00 00 ...................v/..... 29.2.0
31.0 CTL a1 81 00 01 03 00 1a 00 GET CUR 30.1.0
31.0 26 IN 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 76 2f 00 00 0c 00 00 ...................v/..... 30.2.0
31.0 CTL 21 01 00 02 03 00 1a 00 SET CUR 31.1.0
31.0 26 OUT 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 76 2f 00 00 0c 00 00 ...................v/..... 31.2.0
31.0 CTL 01 0b 01 00 03 00 00 00 SET INTERFACE 32.1.0
31.4 4191930 ISOC 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................ 33.1.0
31.4 4293306 ISOC 02 81 af af af af af af af af af af af af af af af af af af af af af af af af af af af af af af ................................ 34.1.0
31.4 4261236 ISOC 02 80 85 68 83 69 83 6c 83 6d 82 69 80 6a 80 6b 80 6d 7f 70 7f 77 80 7c 7f 77 7e 73 7e 76 7e 78 ...h.i.l.m.i.j.k.m.p.w...w.s.v.x 35.1.0
31.4 4293306 ISOC 02 80 d4 d6 d8 d8 d6 d6 d6 d4 d5 d3 d3 d4 d5 d5 d7 d8 d6 d6 d7 d6 d4 d6 d6 d4 d4 d4 d5 d5 d5 d4 ................................ 36.1.0
31.4 4293306 ISOC 02 81 c3 c3 c3 c9 b8 b6 b4 ac a9 a7 9e 93 88 81 6f 69 57 42 2d 1c 16 17 18 20 30 43 52 66 73 7f ................oiWB-.... 0CRfs. 37.1.0
31.4 4079988 ISOC 02 80 8a 76 89 76 89 76 89 76 89 77 8a 78 8a 78 8a 78 89 78 89 77 89 78 89 78 89 78 88 78 88 79 ...v.v.v.v.w.x.x.x.x.w.x.x.x.x.y 38.1.0
31 0 ISOC 39.1.0(136)
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 175.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 2b 00 00 00 ........+... 175.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 176.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 177.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 2b 00 00 00 00 00 00 00 ........+....... 177.2.0
31 0 ISOC 178.1.0(157)
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 335.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 2c 00 00 00 ........,... 335.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 336.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 337.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 2c 00 00 00 00 00 00 00 ........,....... 337.2.0
31 0 ISOC 338.1.0(157)
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 495.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 2d 00 00 00 ........-... 495.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 496.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 497.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 2d 00 00 00 00 00 00 00 ........-....... 497.2.0
31 0 ISOC 498.1.0(156)
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 654.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 2e 00 00 00 ............ 654.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 655.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 656.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 2e 00 00 00 00 00 00 00 ................ 656.2.0
31 0 ISOC 657.1.0(157)
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 814.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 2f 00 00 00 ......../... 814.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 815.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 816.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 2f 00 00 00 00 00 00 00 ......../....... 816.2.0
31 0 ISOC 817.1.0(157)
30.0 CTL 21 00 00 00 00 00 0c 00 SEND ENCAP CMD 974.1.0
30.0 12 OUT 08 00 00 00 0c 00 00 00 30 00 00 00 ........0... 974.2.0
30.2 8 IN 01 00 00 00 00 00 00 00 ........ 975.1.0
30.0 CTL a1 01 00 00 00 00 00 10 GET ENCAP RESPON 976.1.0
30.0 16 IN 08 00 00 80 10 00 00 00 30 00 00 00 00 00 00 00 ........0....... 976.2.0
31 0 ISOC 977.1.0(83)
31 0 ISOC 1060.1.0
接着是我同学的抓包数据：
Device Address Length Phase Data Description Cmd.Phase.Ofs(rep) Date
------ ------------------- -------- ----- -------------------------------------------------- ---------------- ------------------ ----------
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 322.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 322.2.16
33 0 ISOC 323.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 323.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 323.2.16
33.4 947898 ISOC 02 81 92 5a 92 5a 92 5a 91 5a 91 5a 90 5a 90 5b ...Z.Z.Z.Z.Z.Z.[ 324.1.0 2022/10/31
90 5b 91 5b 90 5b 90 5c 90 5c 90 5c 90 5c 91 5c .[.[.[.\.\.\.\.\ 324.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 324.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 324.2.16
33 0 ISOC 325.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 325.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 325.2.16
33.4 2162688 ISOC 02 80 25 26 28 2c 31 34 39 3b 39 3c 41 43 44 47 ..%&(,149;9<ACDG 326.1.0 2022/10/31
48 4a 4b 4a 4b 4e 4f 51 50 52 54 55 54 54 56 56 HJKJKNOQPRTUTTVV 326.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 326.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 326.2.16
33 0 ISOC 327.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 327.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 327.2.16
33.4 304128 ISOC 02 80 86 72 86 72 86 72 86 71 86 71 86 71 87 72 ...r.r.r.q.q.q.r 328.1.0 2022/10/31
86 72 86 73 86 72 86 73 86 73 87 73 87 74 87 74 .r.s.r.s.s.s.t.t 328.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 328.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 328.2.16
33.4 643770 ISOC 02 80 89 67 8c 66 8c 66 8b 66 8c 67 8b 67 8b 68 ...g.f.f.f.g.g.h 329.1.0 2022/10/31
8a 69 8a 6a 89 6a 89 6a 8a 6b 8a 6b 8b 6c 8c 6d .i.j.j.j.k.k.l.m 329.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 329.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 329.2.16
33 0 ISOC 330.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 330.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 330.2.16
33.4 2162688 ISOC 02 80 21 25 26 25 22 23 26 27 23 25 27 26 25 26 ..!%&%"#&'#%'&%& 331.1.0 2022/10/31
25 23 24 24 24 21 25 26 25 26 26 24 22 22 23 26 %#$$$!%&%&&$""#& 331.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 331.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 331.2.16
33 0 ISOC 332.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 332.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 332.2.16
33.4 947898 ISOC 02 80 90 64 90 65 90 65 90 65 90 65 90 65 90 65 ...d.e.e.e.e.e.e 333.1.0 2022/10/31
8f 65 8f 65 8f 65 8f 65 8f 65 90 65 90 65 90 64 .e.e.e.e.e.e.e.d 333.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 333.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 333.2.16
33.4 878592 ISOC 02 80 25 26 28 2c 31 34 39 3b 39 3c 41 43 44 47 ..%&(,149;9<ACDG 334.1.0 2022/10/31
48 4a 4b 4a 4b 4e 4f 51 50 52 54 55 54 54 56 56 HJKJKNOQPRTUTTVV 334.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 334.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 334.2.16
33.4 1284096 ISOC 02 80 1d 1d 1c 1c 1b 1c 1b 1b 1c 1d 1c 1b 1b 1b ................ 335.1.0 2022/10/31
1a 19 1a 1c 1d 1c 1c 1c 1d 1d 1f 1e 1f 1e 1e 1f ................ 335.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 335.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 335.2.16
33 0 ISOC 336.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 336.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 336.2.16
33.4 947898 ISOC 02 80 89 67 8c 66 8c 66 8b 66 8c 67 8b 67 8b 68 ...g.f.f.f.g.g.h 337.1.0 2022/10/31
8a 69 8a 6a 89 6a 89 6a 8a 6b 8a 6b 8b 6c 8c 6d .i.j.j.j.k.k.l.m 337.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 337.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 337.2.16
33 0 ISOC 338.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 338.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 338.2.16
33.4 2162688 ISOC 02 80 21 25 26 25 22 23 26 27 23 25 27 26 25 26 ..!%&%"#&'#%'&%& 339.1.0 2022/10/31
25 23 24 24 24 21 25 26 25 26 26 24 22 22 23 26 %#$$$!%&%&&$""#& 339.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 339.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 339.2.16
33 0 ISOC 340.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 340.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 340.2.16
33.4 947898 ISOC 02 80 90 64 90 65 90 65 90 65 90 65 90 65 90 65 ...d.e.e.e.e.e.e 341.1.0 2022/10/31
8f 65 8f 65 8f 65 8f 65 8f 65 90 65 90 65 90 64 .e.e.e.e.e.e.e.d 341.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 341.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 341.2.16
33 0 ISOC 342.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 342.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 342.2.16
33.4 675840 ISOC 02 80 1d 1d 1c 1c 1b 1c 1b 1b 1c 1d 1c 1b 1b 1b ................ 343.1.0 2022/10/31
1a 19 1a 1c 1d 1c 1c 1c 1d 1d 1f 1e 1f 1e 1e 1f ................ 343.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 343.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 343.2.16
33.4 1486848 ISOC 02 80 27 28 28 26 27 29 28 2a 2a 27 24 24 26 25 ..'((&')(**'$$&% 344.1.0 2022/10/31
23 21 22 21 22 25 28 28 23 20 1f 1e 1d 1d 1e 1d #!"!"%((# ...... 344.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 344.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 344.2.16
33 0 ISOC 345.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 345.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 345.2.16
33.4 947898 ISOC 02 81 c8 c9 cc cd cb cb ce ce ce ce d1 d2 d2 d1 ................ 346.1.0 2022/10/31
d0 d0 d0 d0 d0 d1 d0 d0 a3 a3 a4 a4 a8 aa 8e 50 ...............P 346.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 346.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 346.2.16
33 0 ISOC 347.1.0(2) 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 347.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 347.2.16
33.4 2162688 ISOC 02 80 90 64 90 65 90 65 90 65 90 65 90 65 90 65 ...d.e.e.e.e.e.e 349.1.0 2022/10/31
8f 65 8f 65 8f 65 8f 65 8f 65 90 65 90 65 90 64 .e.e.e.e.e.e.e.d 349.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 349.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 349.2.16
33 0 ISOC 350.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 350.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 350.2.16
33.4 947898 ISOC 02 80 1d 1d 1c 1c 1b 1c 1b 1b 1c 1d 1c 1b 1b 1b ................ 351.1.0 2022/10/31
1a 19 1a 1c 1d 1c 1c 1c 1d 1d 1f 1e 1f 1e 1e 1f ................ 351.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 351.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 351.2.16
33 0 ISOC 352.1.0(2) 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 352.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 352.2.16
33.4 2162688 ISOC 02 81 c8 c9 cc cd cb cb ce ce ce ce d1 d2 d2 d1 ................ 354.1.0 2022/10/31
d0 d0 d0 d0 d0 d1 d0 d0 a3 a3 a4 a4 a8 aa 8e 50 ...............P 354.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 354.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 354.2.16
33 0 ISOC 355.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 355.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 355.2.16
33.4 947898 ISOC 02 81 92 5a 92 5a 92 5a 91 5a 91 5a 90 5a 90 5b ...Z.Z.Z.Z.Z.Z.[ 356.1.0 2022/10/31
90 5b 91 5b 90 5b 90 5c 90 5c 90 5c 90 5c 91 5c .[.[.[.\.\.\.\.\ 356.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 356.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 356.2.16
33 0 ISOC 357.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 357.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 357.2.16
33.4 1520640 ISOC 02 80 25 26 28 2c 31 34 39 3b 39 3c 41 43 44 47 ..%&(,149;9<ACDG 358.1.0 2022/10/31
48 4a 4b 4a 4b 4e 4f 51 50 52 54 55 54 54 56 56 HJKJKNOQPRTUTTVV 358.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 358.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 358.2.16
33.4 642048 ISOC 02 81 81 82 81 80 80 80 80 81 83 85 82 81 81 82 ................ 359.1.0 2022/10/31
83 83 84 84 83 83 84 84 84 82 84 84 85 87 88 86 ................ 359.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 359.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 359.2.16
33 0 ISOC 360.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 360.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 360.2.16
33.4 947898 ISOC 02 80 89 67 8c 66 8c 66 8b 66 8c 67 8b 67 8b 68 ...g.f.f.f.g.g.h 361.1.0 2022/10/31
8a 69 8a 6a 89 6a 89 6a 8a 6b 8a 6b 8b 6c 8c 6d .i.j.j.j.k.k.l.m 361.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 361.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 361.2.16
33 0 ISOC 362.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 362.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 362.2.16
33.4 2162688 ISOC 02 80 21 25 26 25 22 23 26 27 23 25 27 26 25 26 ..!%&%"#&'#%'&%& 363.1.0 2022/10/31
25 23 24 24 24 21 25 26 25 26 26 24 22 22 23 26 %#$$$!%&%&&$""#& 363.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 363.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 363.2.16
33 0 ISOC 364.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 364.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 364.2.16
33.4 270336 ISOC 02 80 90 64 90 65 90 65 90 65 90 65 90 65 90 65 ...d.e.e.e.e.e.e 365.1.0 2022/10/31
8f 65 8f 65 8f 65 8f 65 8f 65 90 65 90 65 90 64 .e.e.e.e.e.e.e.d 365.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 365.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 365.2.16
33.4 677562 ISOC 02 80 85 73 85 72 85 72 85 72 86 72 86 73 86 72 ...s.r.r.r.r.s.r 366.1.0 2022/10/31
86 71 86 72 85 72 86 72 86 72 86 72 86 73 86 72 .q.r.r.r.r.r.s.r 366.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 366.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 366.2.16
33.4 608256 ISOC 02 81 81 82 81 80 80 80 80 81 83 85 82 81 81 82 ................ 367.1.0 2022/10/31
83 83 84 84 83 83 84 84 84 82 84 84 85 87 88 86 ................ 367.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 367.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 367.2.16
33.4 1554432 ISOC 02 81 89 86 7f 7c 7f 7e 7b 7a 7c 7b 7a 7b 7b 7a .........z..z..z 368.1.0 2022/10/31
7a 7b 78 77 76 75 74 74 73 72 6f 70 6e 6d 6c 6b z.xwvuttsropnmlk 368.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 368.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 368.2.16
33 0 ISOC 369.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 369.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 369.2.16
33.4 947898 ISOC 02 81 c8 c9 cc cd cb cb ce ce ce ce d1 d2 d2 d1 ................ 370.1.0 2022/10/31
d0 d0 d0 d0 d0 d1 d0 d0 a3 a3 a4 a4 a8 aa 8e 50 ...............P 370.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 370.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 370.2.16
33 0 ISOC 371.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 371.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 371.2.16
33.4 2162688 ISOC 02 81 92 5a 92 5a 92 5a 91 5a 91 5a 90 5a 90 5b ...Z.Z.Z.Z.Z.Z.[ 372.1.0 2022/10/31
90 5b 91 5b 90 5b 90 5c 90 5c 90 5c 90 5c 91 5c .[.[.[.\.\.\.\.\ 372.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 372.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 372.2.16
33 0 ISOC 373.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 373.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 373.2.16
33.4 371712 ISOC 02 80 85 73 85 72 85 72 85 72 86 72 86 73 86 72 ...s.r.r.r.r.s.r 374.1.0 2022/10/31
86 71 86 72 85 72 86 72 86 72 86 72 86 73 86 72 .q.r.r.r.r.r.s.r 374.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 374.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 374.2.16
33.4 576186 ISOC 02 80 a3 3c a5 3b a6 39 a7 37 a7 36 a7 36 a8 37 ...<.;.9.7.6.6.7 375.1.0 2022/10/31
a8 37 a8 37 a8 37 a8 37 a8 37 a8 38 a7 38 a7 38 .7.7.7.7.7.8.8.8 375.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 375.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 375.2.16
33.4 2162688 ISOC 02 81 89 86 7f 7c 7f 7e 7b 7a 7c 7b 7a 7b 7b 7a .........z..z..z 376.1.0 2022/10/31
7a 7b 78 77 76 75 74 74 73 72 6f 70 6e 6d 6c 6b z.xwvuttsropnmlk 376.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 376.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 376.2.16
33 0 ISOC 377.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 377.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 377.2.16
33.4 947898 ISOC 02 81 c8 c9 cc cd cb cb ce ce ce ce d1 d2 d2 d1 ................ 378.1.0 2022/10/31
d0 d0 d0 d0 d0 d1 d0 d0 a3 a3 a4 a4 a8 aa 8e 50 ...............P 378.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 378.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 378.2.16
33 0 ISOC 379.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 379.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 379.2.16
33.4 2095104 ISOC 02 81 92 5a 92 5a 92 5a 91 5a 91 5a 90 5a 90 5b ...Z.Z.Z.Z.Z.Z.[ 380.1.0 2022/10/31
90 5b 91 5b 90 5b 90 5c 90 5c 90 5c 90 5c 91 5c .[.[.[.\.\.\.\.\ 380.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 380.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 380.2.16
33.4 67584 ISOC 02 80 86 71 86 71 86 71 86 71 86 71 86 71 86 72 ...q.q.q.q.q.q.r 381.1.0 2022/10/31
85 72 85 72 85 72 85 71 86 70 86 6f 87 6f 87 70 .r.r.r.q.p.o.o.p 381.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 381.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 381.2.16
33 0 ISOC 382.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 382.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 382.2.16
33.4 947898 ISOC 02 80 a3 3c a5 3b a6 39 a7 37 a7 36 a7 36 a8 37 ...<.;.9.7.6.6.7 383.1.0 2022/10/31
a8 37 a8 37 a8 37 a8 37 a8 37 a8 38 a7 38 a7 38 .7.7.7.7.7.8.8.8 383.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 383.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 383.2.16
33.4 946176 ISOC 02 81 89 86 7f 7c 7f 7e 7b 7a 7c 7b 7a 7b 7b 7a .........z..z..z 384.1.0 2022/10/31
7a 7b 78 77 76 75 74 74 73 72 6f 70 6e 6d 6c 6b z.xwvuttsropnmlk 384.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 384.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 384.2.16
33.4 1216512 ISOC 02 81 13 13 13 14 15 15 16 16 17 18 17 18 19 19 ................ 385.1.0 2022/10/31
19 1a 1b 1a 1a 1b 1b 1c 1c 1c 1c 1d 1d 1d 1e 1e ................ 385.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 385.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 385.2.16
33 0 ISOC 386.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 386.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 386.2.16
33.4 947898 ISOC 02 80 21 25 26 25 22 23 26 27 23 25 27 26 25 26 ..!%&%"#&'#%'&%& 387.1.0 2022/10/31
25 23 24 24 24 21 25 26 25 26 26 24 22 22 23 26 %#$$$!%&%&&$""#& 387.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 387.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 387.2.16
33 0 ISOC 388.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 388.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 388.2.16
33.4 304128 ISOC 02 80 86 71 86 71 86 71 86 71 86 71 86 71 86 72 ...q.q.q.q.q.q.r 389.1.0 2022/10/31
85 72 85 72 85 72 85 71 86 70 86 6f 87 6f 87 70 .r.r.r.q.p.o.o.p 389.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 389.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 389.2.16
33.4 1858560 ISOC 02 80 43 91 9d 91 53 46 5e a4 96 50 46 69 95 86 ..C...SF^..PFi.. 390.1.0 2022/10/31
54 56 8b 89 51 50 8b 83 52 55 8c 81 62 77 82 58 TV..QP..RU..bw.X 390.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 390.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 390.2.16
33 0 ISOC 391.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 391.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 391.2.16
33.4 947898 ISOC 02 81 89 86 7f 7c 7f 7e 7b 7a 7c 7b 7a 7b 7b 7a .........z..z..z 392.1.0 2022/10/31
7a 7b 78 77 76 75 74 74 73 72 6f 70 6e 6d 6c 6b z.xwvuttsropnmlk 392.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 392.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 392.2.16
33 0 ISOC 393.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 393.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 393.2.16
33.4 777216 ISOC 02 81 c8 c9 cc cd cb cb ce ce ce ce d1 d2 d2 d1 ................ 394.1.0 2022/10/31
d0 d0 d0 d0 d0 d1 d0 d0 a3 a3 a4 a4 a8 aa 8e 50 ...............P 394.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 394.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 394.2.16
33.4 1385472 ISOC 02 81 40 3f 3f 3f 3e 3e 3f 3e 3d 3d 3e 3e 3d 3c ..@???>>?>==>>=< 395.1.0 2022/10/31
3c 3b 3b 3b 3c 3d 3c 3b 3b 3b 3c 3b 3a 3a 38 37 <;;;<=<;;;<;::87 395.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 395.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 395.2.16
33 0 ISOC 396.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 396.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 396.2.16
33.4 947898 ISOC 02 80 86 71 86 71 86 71 86 71 86 71 86 71 86 72 ...q.q.q.q.q.q.r 397.1.0 2022/10/31
85 72 85 72 85 72 85 71 86 70 86 6f 87 6f 87 70 .r.r.r.q.p.o.o.p 397.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 397.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 397.2.16
33 0 ISOC 398.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 398.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 398.2.16
33.4 2162688 ISOC 02 80 a3 3c a5 3b a6 39 a7 37 a7 36 a7 36 a8 37 ...<.;.9.7.6.6.7 399.1.0 2022/10/31
a8 37 a8 37 a8 37 a8 37 a8 37 a8 38 a7 38 a7 38 .7.7.7.7.7.8.8.8 399.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 399.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 399.2.16
33 0 ISOC 400.1.0(2) 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 400.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 400.2.16
33.4 947898 ISOC 02 81 c8 c9 cc cd cb cb ce ce ce ce d1 d2 d2 d1 ................ 402.1.0 2022/10/31
d0 d0 d0 d0 d0 d1 d0 d0 a3 a3 a4 a4 a8 aa 8e 50 ...............P 402.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 402.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 402.2.16
33.4 2162688 ISOC 02 81 40 3f 3f 3f 3e 3e 3f 3e 3d 3d 3e 3e 3d 3c ..@???>>?>==>>=< 403.1.0 2022/10/31
3c 3b 3b 3b 3c 3d 3c 3b 3b 3b 3c 3b 3a 3a 38 37 <;;;<=<;;;<;::87 403.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 403.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 403.2.16
33 0 ISOC 404.1.0(2) 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 404.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 404.2.16
33.4 947898 ISOC 02 80 43 91 9d 91 53 46 5e a4 96 50 46 69 95 86 ..C...SF^..PFi.. 406.1.0 2022/10/31
54 56 8b 89 51 50 8b 83 52 55 8c 81 62 77 82 58 TV..QP..RU..bw.X 406.1.16
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 406.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 406.2.16
33 0 ISOC 407.1.0 2022/10/31
33 IRP 06 00 70 06 00 00 00 00 00 00 00 00 00 00 00 00 407.2.0 2022/10/31
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 407.2.16
33.4 1486848 ISOC 02 81 89 86 7f 7c 7f 7e 7b 7a 7c 7b 7a 7b 7b 7a .........z..z..z 408.1.0 2022/10/31
7a 7b 78 77 76 75 74 74 73 72 6f 70 6e 6d 6c 6b z.xwvuttsropnmlk 408.1.16
从你COMMIT的数据来看：
----------------------------------
USB中文网 http://www.usbzh.com
----------------------------------
============UVC1.0============
0x01, 0x00, UINT16 bmHint;dwFrameInterval保持不变;
0x01, UINT8 bFormatIndex=1,
0x05, UINT8 bFrameIndex=5,
0x15, 0x16, 0x05, 0x00, UINT32 dwFrameInterval=333333,;33.3333,ms/帧
0x00, 0x00, UINT16 wKeyFrameRate=0,;缩格式中只有第1帧为关键帧;
0x00, 0x00, UINT16 wPFrameRate=0,;压缩格式P帧速率;
0x00, 0x00, UINT16 wCompQuality=0,,压缩质量1-10000;
0x00, 0x00, UINT16 wCompWindowSize;0,,平均比特率控制的窗口大小;
0x00, 0x00, UINT16 wDelay;0,,内部视频流接口延迟（毫秒）;
0x00, 0x76, 0x2F, 0x00, UINT32 dwMaxVideoFrameSize;3110400,Bytes
0x00, 0x0C, 0x00, 0x00, UINT32 dwMaxPayloadTransferSize;3072,Bytes
- dwMaxVideoFrameSize:这个值必须大于等于你的数据长度。
- dwMaxPayloadTransferSize：这个数据是每次UVC传输时，负载数据头的最大长度。但是你看你的包，每次URB都大于这个值。所以说明一个问题，要么你的负载头设置的有问题，要么你的参数不一致。
你应该看一下这个东西：UVC等时传输中的dwMaxVideoFrameSize和dwMaxPayloadTransferSize关系 https://www.usbzh.com/article/detail-267.html
hi 站长大大，
我修改了一下dwMaxVideoFrameSize，直接把这个值放大了两倍，但是似乎断流的问题跟这个并没有关系，因为也是跑了一段时间之后就会断流。
我观察到抓包的数据，发现正常播放的时候，数据包在3110586这么大小，但是前面有一端数据的大小在4261236左右，我不太理解这一段是怎么来的。而且，在正常播放的时候，有时候会将3110586拆成两包数据分成 两个urb发送，这个又是由什么决定的呢？
最后，最关键的问题还是断流的原因没有找到，不知道您还有什么思路吗? :-)
Device Length Phase Data Description Cmd.Phase.Ofs(rep)
------ -------- ----- ------------------------------------------------------------------------------------------------------ -------------------------------- ------------------
42.0 CTL a1 81 00 01 03 00 1a 00 GET CUR 1.1.0
42.0 26 IN 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 ec 5e 00 00 0c 00 00 ....................^..... 1.2.0
42.0 URB 88 00 08 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 b0 3c 31 59 0e 96 ff ff CONTROL TRANSFER 1.3.0
42.0 CTL 21 01 00 01 03 00 1a 00 SET CUR 2.1.0
42.0 26 OUT 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 ec 5e 00 00 00 00 00 ....................^..... 2.2.0
42.0 URB 88 00 08 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 b0 3c 31 59 0e 96 ff ff CONTROL TRANSFER 2.3.0
42.0 CTL a1 81 00 01 03 00 1a 00 GET CUR 3.1.0
42.0 26 IN 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 ec 5e 00 00 0c 00 00 ....................^..... 3.2.0
42.0 URB 88 00 08 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 b0 3c 31 59 0e 96 ff ff CONTROL TRANSFER 3.3.0
42.0 CTL a1 83 00 01 03 00 1a 00 GET MAX 4.1.0
42.0 26 IN 01 00 04 07 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 d8 bd 00 00 0c 00 00 .......................... 4.2.0
42.0 URB 88 00 08 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 b0 3c 31 59 0e 96 ff ff CONTROL TRANSFER 4.3.0
42.0 CTL a1 82 00 01 03 00 1a 00 GET MIN 5.1.0
42.0 26 IN 01 00 01 01 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 8c 0a 00 00 0c 00 00 .......................... 5.2.0
42.0 URB 88 00 08 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 b0 3c 31 59 0e 96 ff ff CONTROL TRANSFER 5.3.0
42.0 CTL 21 01 00 01 03 00 1a 00 SET CUR 6.1.0
42.0 26 OUT 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 ec 5e 00 00 00 00 00 ....................^..... 6.2.0
42.0 URB 88 00 08 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 b0 3c 31 59 0e 96 ff ff CONTROL TRANSFER 6.3.0
42.0 CTL a1 81 00 01 03 00 1a 00 GET CUR 7.1.0
42.0 26 IN 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 ec 5e 00 00 0c 00 00 ....................^..... 7.2.0
42.0 URB 88 00 08 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 b0 3c 31 59 0e 96 ff ff CONTROL TRANSFER 7.3.0
42.0 CTL 21 01 00 02 03 00 1a 00 SET CUR 8.1.0
42.0 26 OUT 01 00 01 05 15 16 05 00 00 00 00 00 00 00 00 00 00 00 00 ec 5e 00 00 0c 00 00 ....................^..... 8.2.0
42.0 URB 88 00 08 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 b0 3c 31 59 0e 96 ff ff CONTROL TRANSFER 8.3.0
42.0 CTL 01 0b 01 00 03 00 00 00 SET INTERFACE 9.1.0
42.0 URB 50 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0 39 f4 58 0e 96 ff ff SELECT INTERFACE 9.2.0
42.4 4191930 ISOC 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................ 10.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 10.2.0
42.4 4293306 ISOC 02 80 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................................ 11.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 11.2.0
42.4 4261236 ISOC 02 81 83 86 83 86 83 85 82 85 82 85 82 85 81 85 82 85 82 85 82 85 82 85 82 85 82 85 82 85 82 85 ................................ 12.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 12.2.0
42.4 4293306 ISOC 02 81 56 56 57 56 56 56 56 56 56 56 56 55 56 56 56 56 57 57 56 56 57 57 57 57 56 54 56 58 57 57 ..VVWVVVVVVVVUVVVVWWVVWWWWVTVXWW 13.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 13.2.0
42.4 4293306 ISOC 02 80 4d 4d 4c 4d 4c 4d 4c 4b 4c 4d 4e 4f 4e 4d 4d 4d 4d 4b 4c 4d 4d 4d 4d 4d 4d 4d 4d 4d 4d 4d ..MMLMLMLKLMNONMMMMKLMMMMMMMMMMM 14.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 14.2.0
42.4 4261236 ISOC 02 81 90 77 91 77 91 77 91 77 91 77 91 77 90 77 91 77 91 76 91 76 91 76 91 76 90 76 91 75 91 75 ...w.w.w.w.w.w.w.w.v.v.v.v.v.u.u 15.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 15.2.0
42.4 4293306 ISOC 02 81 59 59 59 59 59 58 59 5a 59 59 59 58 58 59 5a 59 59 59 5a 5a 59 59 5a 5a 59 58 58 59 5a 5a ..YYYYYXYZYYYXXYZYYYZZYYZZYXXYZZ 16.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 16.2.0
42.4 4293306 ISOC 02 80 58 57 58 58 58 58 58 58 58 57 56 57 58 58 58 58 58 57 57 57 58 58 57 57 56 56 57 57 57 57 ..XWXXXXXXXWVWXXXXXWWWXXWWVVWWWW 17.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 17.2.0
42.4 4261236 ISOC 02 81 90 71 90 72 90 71 90 72 90 72 90 71 90 71 90 71 90 71 90 71 90 71 90 71 90 71 90 71 90 71 ...q.r.q.r.r.q.q.q.q.q.q.q.q.q.q 18.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 18.2.0
42.4 4293306 ISOC 02 81 59 59 5a 59 57 58 5a 5a 58 58 59 5a 59 58 59 5a 5a 5a 5a 5a 59 59 5a 5a 5b 5b 5a 5a 5a 5a ..YYZYWXZZXXYZYXYZZZZZYYZZ[[ZZZZ 19.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 19.2.0
42.4 4261236 ISOC 02 80 81 84 81 84 81 84 81 84 80 84 81 84 81 84 81 84 81 84 81 84 81 84 81 84 81 84 81 84 81 84 ................................ 20.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 20.2.0
42.4 4293306 ISOC 02 80 61 60 60 62 63 63 63 63 63 63 63 62 63 64 64 65 65 64 64 64 5b 5b 5b 5c 5c 5c 5b 5a 5b 5b ..a``bcccccccbcddeeddd[[[\\\[Z[[ 21.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 21.2.0
42.4 4293306 ISOC 02 81 66 66 66 65 65 66 66 66 67 68 68 67 67 67 67 67 68 67 68 69 6a 69 69 68 67 68 68 68 67 67 ..fffeefffghhggggghghijiihghhhgg 22.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 22.2.0
42.4 4261236 ISOC 02 80 90 7c 90 7c 90 7c 90 7c 90 7b 90 7c 90 7c 90 7c 90 7c 90 7c 90 7c 90 7c 90 7c 90 7b 90 7b ................................ 23.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 23.2.0
42.4 4293306 ISOC 02 80 5c 5c 5d 5e 5d 5c 5d 5d 5e 5d 5c 5c 5d 5c 5d 5d 5d 5d 5c 5c 5d 5d 5d 5d 5e 5e 5e 5d 5d 5e ..\\]^]\]]^]\\]\]]]]\\]]]]^^^]]^ 24.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 24.2.0
42.4 4293306 ISOC 02 81 61 61 60 62 62 62 62 62 62 61 61 5f 60 61 62 63 61 5f 61 63 62 5f 60 61 62 62 61 61 61 61 ..aa`bbbbbbaa_`abca_acb_`abbaaaa 25.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 25.2.0
42.4 4261236 ISOC 02 82 90 72 90 72 90 72 90 72 90 72 90 72 90 72 90 72 90 71 90 72 90 72 90 72 90 72 90 72 90 71 ...r.r.r.r.r.r.r.r.q.r.r.r.r.r.q 26.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 26.2.0
42.4 4293306 ISOC 02 80 49 48 48 49 49 4a 4a 4a 49 48 49 4a 4a 4a 4a 4a 4a 49 48 49 4a 4a 49 4a 4a 4a 4a 4a 49 48 ..IHHIIJJJIHIJJJJJJIHIJJIJJJJJIH 27.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 27.2.0
42.4 4261236 ISOC 02 81 83 81 84 81 84 81 84 81 84 81 84 81 83 81 83 81 83 81 83 81 83 81 84 81 84 81 84 81 84 81 ................................ 28.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 28.2.0
42.4 4293306 ISOC 02 81 51 51 50 50 50 51 51 51 50 50 51 50 51 50 50 50 50 50 51 50 4f 4f 4f 4f 50 4f 4f 50 4f 4f ..QQPPPQQQPPQPQPPPPPQPOOOOPOOPOO 29.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 29.2.0
42.4 4293306 ISOC 02 80 50 51 50 4d 4f 50 50 51 51 51 50 51 51 4f 51 52 51 50 52 51 51 51 51 52 52 53 52 52 52 51 ..PQPMOPPQQQPQQOQRQPRQQQQRRSRRRQ 30.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 30.2.0
42.4 4261236 ISOC 02 81 90 72 90 73 90 73 90 73 90 73 90 73 90 73 90 73 90 74 90 74 90 73 90 73 90 73 90 73 90 73 ...r.s.s.s.s.s.s.s.t.t.s.s.s.s.s 31.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 31.2.0
42.4 4293306 ISOC 02 81 5e 60 61 61 61 60 60 61 61 61 62 61 60 5f 60 61 61 61 61 61 62 62 61 63 63 62 62 63 63 62 ..^`aaa``aaaba`_`aaaaabbaccbbccb 32.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 32.2.0
42.4 4261236 ISOC 02 80 59 59 59 5a 5b 59 59 59 5a 5b 5a 5a 5a 5a 59 59 5a 5a 5a 5b 5b 59 5a 5a 5a 5a 5a 5b 5a 5a ..YYYZ[YYYZ[ZZZZYYZZZ[[YZZZZZ[ZZ 33.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 33.2.0
42.4 4293306 ISOC 02 80 71 bd 5f 3b 55 57 57 58 57 57 57 57 56 56 57 57 55 55 55 54 56 57 57 56 56 56 58 58 55 56 ..q._;UWWXWWWWVVWWUUUTVWWVVVXXUV 34.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 34.2.0
42.4 4293306 ISOC 02 81 63 64 64 64 63 63 64 64 64 63 64 63 63 63 63 64 64 64 63 63 64 64 63 61 62 65 65 64 64 66 ..cdddccdddcdccccdddccddcabeeddf 35.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 35.2.0
42.4 4261236 ISOC 02 80 7d 88 7d 88 7e 88 7e 88 7e 88 7e 88 7d 89 7e 89 7e 89 7e 88 7e 88 7e 88 7d 88 7d 88 7d 88 ................................ 36.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 36.2.0
42.4 4293306 ISOC 02 80 5b 5a 5a 5b 5b 5b 5a 5a 5b 5c 5b 5b 5b 5b 5a 5a 5a 5b 5c 5d 5c 5b 5b 5c 5d 5b 5b 5c 5c 5c ..[ZZ[[[ZZ[\[[[[ZZZ[\]\[[\][[\\\ 37.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 37.2.0
42.4 4293306 ISOC 02 81 58 58 58 57 57 58 58 58 58 54 56 57 56 55 56 58 58 5a 59 58 58 56 56 57 56 55 55 57 57 56 ..XXXWWXXXXTVWVUVXXZYXXVVWVUUWWV 38.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 38.2.0
42.4 4261236 ISOC 02 80 90 78 90 78 90 78 90 78 90 78 90 77 90 77 90 77 90 77 90 77 90 78 90 78 90 78 90 78 90 78 ...x.x.x.x.x.w.w.w.w.w.x.x.x.x.x 39.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 39.2.0
42.4 4293306 ISOC 02 80 58 58 58 58 59 59 58 58 5a 5b 5a 5a 5b 5b 59 5a 5b 5b 5a 5a 5a 5a 5b 5a 5a 5b 5b 5a 5a 5b ..XXXXYYXXZ[ZZ[[YZ[[ZZZZ[ZZ[[ZZ[ 40.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 40.2.0
42.4 4261236 ISOC 02 81 52 51 51 51 4f 51 54 53 50 4f 51 56 58 59 59 58 58 59 58 58 58 58 59 5a 5a 59 59 59 58 57 ..RQQQOQTSPOQVXYYXXYXXXXYZZYYYXW 41.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 41.2.0
42.4 4293306 ISOC 02 81 45 46 45 44 43 43 43 44 44 45 45 44 43 45 45 44 43 44 44 45 44 44 44 44 44 44 44 44 43 44 ..EFEDCCCDDEEDCEEDCDDEDDDDDDDDCD 42.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 42.2.0
42.4 4293306 ISOC 02 80 50 50 4f 4e 4f 50 50 4f 4f 4f 4f 4f 50 50 4e 4f 50 4e 4e 50 50 51 50 4f 50 51 4f 4f 51 50 ..PPONOPPOOOOOPPNOPNNPPQPOPQOOQP 43.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 43.2.0
42.4 1353402 ISOC 02 81 87 7d 87 7d 87 7d 87 7d 86 7d 86 7d 86 7e 85 7e 85 7e 85 7e 85 7e 85 7f 85 7e 85 7e 85 7e ................................ 44.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 44.2.0
42.4 2468538 ISOC 02 80 5a 5a 5b 5b 5a 5a 59 59 5a 5a 5a 5a 59 59 5a 5a 5a 5a 5a 59 59 5a 5a 5a 5a 59 59 58 58 59 ..ZZ[[ZZYYZZZZYYZZZZZYYZZZZYYXXY 45.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 45.2.0
42.4 270336 ISOC 02 80 50 51 50 4d 4f 50 50 51 51 51 50 51 51 4f 51 52 51 50 52 51 51 51 51 52 52 53 52 52 52 51 ..PQPMOPPQQQPQQOQRQPRQQQQRRSRRRQ 46.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 46.2.0
42.4 2840250 ISOC 02 81 4b 4b 4a 4b 4b 49 4a 4a 4b 4c 4c 4c 4a 4a 4b 4b 4b 4b 4b 4b 4b 4c 4c 4c 4c 4c 4d 4c 4d 4d ..KKJKKIJJKLLLJJKKKKKKKLLLLLMLMM 47.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 47.2.0
42 0 ISOC 48.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 48.2.0
42.4 3110586 ISOC 02 80 59 59 59 5a 5b 59 59 59 5a 5b 5a 5a 5a 5a 59 59 5a 5a 5a 5b 5b 59 5a 5a 5a 5a 5a 5b 5a 5a ..YYYZ[YYYZ[ZZZZYYZZZ[[YZZZZZ[ZZ 49.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 49.2.0
42 0 ISOC 50.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 50.2.0
42.4 3110586 ISOC 02 81 63 64 64 64 63 63 64 64 64 63 64 63 63 63 63 64 64 64 63 63 64 64 63 61 62 65 65 64 64 66 ..cdddccdddcdccccdddccddcabeeddf 51.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 51.2.0
42 0 ISOC 52.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 52.2.0
42.4 3110586 ISOC 02 80 5b 5a 5a 5b 5b 5b 5a 5a 5b 5c 5b 5b 5b 5b 5a 5a 5a 5b 5c 5d 5c 5b 5b 5c 5d 5b 5b 5c 5c 5c ..[ZZ[[[ZZ[\[[[[ZZZ[\]\[[\][[\\\ 53.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 53.2.0
42 0 ISOC 54.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 54.2.0
42.4 3110586 ISOC 02 80 90 78 90 78 90 78 90 78 90 78 90 77 90 77 90 77 90 77 90 77 90 78 90 78 90 78 90 78 90 78 ...x.x.x.x.x.w.w.w.w.w.x.x.x.x.x 55.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 55.2.0
42 0 ISOC 56.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 56.2.0
42.4 2804736 ISOC 02 81 52 51 51 51 4f 51 54 53 50 4f 51 56 58 59 59 58 58 59 58 58 58 58 59 5a 5a 59 59 59 58 57 ..RQQQOQTSPOQVXYYXXYXXXXYZZYYYXW 57.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 57.2.0
42.4 305850 ISOC 02 80 91 74 91 73 91 73 91 73 90 74 8b 7a 8b 7a 8f 77 90 76 90 75 90 75 90 75 90 75 90 75 90 75 ...t.s.s.s.t.z.z.w.v.u.u.u.u.u.u 58.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 58.2.0
42.4 2433024 ISOC 02 80 50 50 4f 4e 4f 50 50 4f 4f 4f 4f 4f 50 50 4e 4f 50 4e 4e 50 50 51 50 4f 50 51 4f 4f 51 50 ..PPONOPPOOOOOPPNOPNNPPQPOPQOOQP 59.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 59.2.0
42.4 677562 ISOC 02 81 89 82 89 82 89 82 88 82 88 82 88 82 88 82 87 82 87 83 87 83 87 83 87 83 87 82 86 82 87 82 ................................ 60.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 60.2.0
42.4 2162688 ISOC 02 80 5a 5a 5b 5b 5a 5a 59 59 5a 5a 5a 5a 59 59 5a 5a 5a 5a 5a 59 59 5a 5a 5a 5a 59 59 58 58 59 ..ZZ[[ZZYYZZZZYYZZZZZYYZZZZYYXXY 61.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 61.2.0
42.4 947898 ISOC 02 80 83 81 83 81 83 81 83 82 84 82 83 82 83 82 83 81 83 82 83 81 83 81 84 82 84 82 83 82 83 82 ................................ 62.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 62.2.0
42.4 1757184 ISOC 02 81 4b 4b 4a 4b 4b 49 4a 4a 4b 4c 4c 4c 4a 4a 4b 4b 4b 4b 4b 4b 4b 4c 4c 4c 4c 4c 4d 4c 4d 4d ..KKJKKIJJKLLLJJKKKKKKKLLLLLMLMM 63.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 63.2.0
42.4 1353402 ISOC 02 81 5f 5f 5f 5f 5f 5f 5f 5f 5e 5e 5d 5b 5d 5f 5f 5c 5e 5f 5d 5c 5c 5e 60 60 60 5f 5f 60 5f 5d ..________^^][]__\^_]\\^```__`_] 64.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 64.2.0
42.4 1385472 ISOC 02 80 59 59 59 5a 5b 59 59 59 5a 5b 5a 5a 5a 5a 59 59 5a 5a 5a 5b 5b 59 5a 5a 5a 5a 5a 5b 5a 5a ..YYYZ[YYYZ[ZZZZYYZZZ[[YZZZZZ[ZZ 65.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 65.2.0
42.4 1725114 ISOC 02 80 50 4f 4f 4f 4f 4f 4f 4f 50 51 50 4f 4f 4f 4f 4f 4f 4f 4f 4f 50 50 4f 50 50 50 4f 4f 50 50 ..POOOOOOOPQPOOOOOOOOOPPOPPPOOPP 66.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 66.2.0
42.4 979968 ISOC 02 81 63 64 64 64 63 63 64 64 64 63 64 63 63 63 63 64 64 64 63 63 64 64 63 61 62 65 65 64 64 66 ..cdddccdddcdccccdddccddcabeeddf 67.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 67.2.0
42.4 2130618 ISOC 02 81 49 49 48 48 49 49 49 48 48 49 48 48 49 49 48 48 48 49 48 48 48 4a 49 47 47 48 48 47 47 48 ..IIHHIIIHHIHHIIHHHIHHHJIGGHHGGH 68.1.0
42.4 URB 98 06 0a 00 00 00 00 00 88 b3 3a a2 f1 69 00 00 00 00 00 00 00 00 00 00 a0 7c d4 52 0e 96 ff ff ISOC TRANSFER 68.2.0
你看你的：0x00, 0x76, 0x2F, 0x00, UINT32 dwMaxVideoFrameSize;3110400,Bytes
这代表一帧的最大字节数，主机会使用这个来分配一帧的最大内存空间。如果你的数据超过这个，肯定不行的。
所以你一帧的数据应小于或等于这个值。
或者你找一个可以的摄像头（格式，分辨率），用BUSHOUND抓一下他的包，按它的设置PRO和COMMIT的26字节。