topic Uncompressed video frame format for USB Video device class in Embedded Software and Tools Clinic https://community.nxp.com/t5/Embedded-Software-and-Tools/Uncompressed-video-frame-format-for-USB-Video-device-class/m-p/1023421#M101 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>I am struggling to make video streaming uncompressed RGB565 over USB. I have the iMX streaming data to PC in this format:</P><P>[12 bytes header] [RGB1 RGB2 ... RGBn]</P><P>where RGBn is the 2 bytes of RGB565 of the last frame. This means I start sending bitmap data bytes directly after the protocol header. The problem is the Camera app on PC side doesn't seem to recognize any images.&nbsp;</P><P>I record the stream and compare this with compressed JPEG example, the activity of [12 bytes header] is the same. The only difference is the JPEG payload has JPEG specific header information, while uncompressed RGB565 does not.</P><P>Eg,&nbsp;<SPAN>[12 bytes header] [JPEG header JPEG payload1 ... payloadn]</SPAN></P><P>Or may be uncompressed data should have header also ? if so, what is the uncompressed payload start header ? eg: BMP header , etc ...</P><P></P><P>I have used many apps, windows webcam app, VLC, webcam viewer, ... they all show black screen while on NXP side it shows streaming data.</P><P></P><P>Please help! Thank you !</P><P></P><P>I have sample traffic send RGB24 data out :</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P>sent 202062B8, 12<BR /> C 2 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 3F 1F 0 0 FF 0 0 FF 0<BR />sent 202062B8, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 202066AC, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20206AA0, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20206E94, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20207288, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 2020767C, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20207A70, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20207E64, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20208258, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 2020864C, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20208A40, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20208E34, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20209228, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020961C, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20209A10, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20209E04, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020A1F8, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 2020A5EC, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 2020A9E0, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020ADD4, 752<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 3 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 3F 1F 0 0 FF 0 0 FF 0<BR />sent 202062B8, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 202066AC, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20206AA0, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20206E94, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20207288, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 2020767C, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20207A70, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20207E64, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20208258, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 2020864C, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20208A40, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20208E34, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20209228, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020961C, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20209A10, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20209E04, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020A1F8, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 2020A5EC, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 2020A9E0, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020ADD4, 752<BR /> C 0 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12</P></BLOCKQUOTE></BODY></HTML> Thu, 27 Feb 2020 00:59:52 GMT danny30 2020-02-27T00:59:52Z Uncompressed video frame format for USB Video device class https://community.nxp.com/t5/Embedded-Software-and-Tools/Uncompressed-video-frame-format-for-USB-Video-device-class/m-p/1023421#M101 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>I am struggling to make video streaming uncompressed RGB565 over USB. I have the iMX streaming data to PC in this format:</P><P>[12 bytes header] [RGB1 RGB2 ... RGBn]</P><P>where RGBn is the 2 bytes of RGB565 of the last frame. This means I start sending bitmap data bytes directly after the protocol header. The problem is the Camera app on PC side doesn't seem to recognize any images.&nbsp;</P><P>I record the stream and compare this with compressed JPEG example, the activity of [12 bytes header] is the same. The only difference is the JPEG payload has JPEG specific header information, while uncompressed RGB565 does not.</P><P>Eg,&nbsp;<SPAN>[12 bytes header] [JPEG header JPEG payload1 ... payloadn]</SPAN></P><P>Or may be uncompressed data should have header also ? if so, what is the uncompressed payload start header ? eg: BMP header , etc ...</P><P></P><P>I have used many apps, windows webcam app, VLC, webcam viewer, ... they all show black screen while on NXP side it shows streaming data.</P><P></P><P>Please help! Thank you !</P><P></P><P>I have sample traffic send RGB24 data out :</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P>sent 202062B8, 12<BR /> C 2 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 3F 1F 0 0 FF 0 0 FF 0<BR />sent 202062B8, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 202066AC, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20206AA0, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20206E94, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20207288, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 2020767C, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20207A70, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20207E64, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20208258, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 2020864C, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20208A40, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20208E34, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20209228, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020961C, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20209A10, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20209E04, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020A1F8, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 2020A5EC, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 2020A9E0, 1024<BR /> C 1 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020ADD4, 752<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 1 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 3 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 3F 1F 0 0 FF 0 0 FF 0<BR />sent 202062B8, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 202066AC, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20206AA0, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20206E94, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20207288, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 2020767C, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20207A70, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20207E64, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20208258, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 2020864C, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 20208A40, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20208E34, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20209228, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020961C, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 20209A10, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 20209E04, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020A1F8, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0 FF<BR />sent 2020A5EC, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0<BR />sent 2020A9E0, 1024<BR /> C 0 0 0 0 0 0 0 0 0 0 0 0 FF 0 0 FF 0 0 FF 0 0 FF 0 0<BR />sent 2020ADD4, 752<BR /> C 0 0 0 0 0 0 0 0 0 0 0<BR />sent 202062B8, 12</P></BLOCKQUOTE></BODY></HTML> Thu, 27 Feb 2020 00:59:52 GMT https://community.nxp.com/t5/Embedded-Software-and-Tools/Uncompressed-video-frame-format-for-USB-Video-device-class/m-p/1023421#M101 danny30 2020-02-27T00:59:52Z