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Questions - raw

How to retrieve raw data from YUV2 streaming

I am interfacing qvga sensor streaming out yuv2 format data through host application on windows (usb). How can I use any opencv-python example application to stream or capture raw data from yuv2 forma...
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Emlinux

python

opencv

yuv

raw

uvc

Votes: 0

Answers: 1

Latest Answer

The true format of the pixels in your video is int16 grayscale pixel, but it is marked as YUV2 format (probably for compatibility with grabbers that do not support 16 bit). I saw the same technique us...
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Rotem

recording audio in raw or pcm format using python

I am trying to use porcupine on my Jetson Nano as a wake word. In order to do this I need to record audio in pcm format(which I believe is raw format) using python. I also need the sample rate to be 1...
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gs97ahn

python

audio

pcm

raw

Votes: 0

Answers: 1

Latest Answer

It looks like there is a demo already setup for this from porcupine's side. Checkout their demo here - it's a lot of code so I won't paste it all. Essentially it requires installing the pvporcupinedem...
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WoodyDev

Why do I get a seg fault when copying to data buffer with PACKET_TX_RING?

The following code generates a segmentation fault on iteration 33. The offending line of code is memcpy(data, datagram, 4096);. How could a simple memcpy generate a segmentation fault? The output of m...
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James Read

c

sockets

raw

Votes: 0

Answers: 1

Latest Answer

The issue is here: ps_header = ((struct tpacket_hdr *)((void *)ps_header_start) + (c_buffer_sz*i_index)); You're taking ps_header_start, casting it to a struct tpacket_hdr * and then adding a buffer ...
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Gil Hamilton

Why is recvfrom blocking forever with PF_PACKET socket?

The following code reads an IPv4 address from an input file which has an IPv4 address of a known web server on each line. It sends a TCP SYN with a PF_PACKET type socket. The main function launches tw...
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James Read

c

sockets

raw

Votes: 0

Answers: 0

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