RV1106 teaches you step by step: ffmpeg uses USB camera to record video without interface

LitchiCheng

RV1106 teaches you step by step: ffmpeg uses USB camera to record video without interface [Copy link]

 

 

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experiment procedure

Install ffmpeg

sudo apt update
sudo apt install ffmpeg

Insert the USB camera, the corresponding device is /dev/video0, you need to update the kernel configuration and the USB mode of the device tree to host, refer to

rv1106 development board configures TypeC interface USB Host and identifies USB device - Domestic chip exchange - Electronic Engineering World - Forum (eeworld.com.cn)

ffmpeg parameter description

-f output format, use v4l2

-s resolution, too large will occupy too much CPU, it is recommended to keep it small

-r frame rate, needs to correspond to the camera support range

-vcodec encoding method

-i Path to the data input stream

-b:v video bitrate, default 1000k

-an no audio

-pix_fmt pixel format, needs to correspond to the camera support range, such as yuv420p, yuvj422p, mjpeg

-b:a audio bitrate

-vcodec libx264, convert to H264 encoding, you can check ffmpeg's codec support

-preset processing mode, ultrafast, superfast, veryfast, faster, fast, medium

Use the following command to record, the video file name is v1.mp4

ffmpeg -f v4l2 -s 432x240 -r 30 -vcodec mjpeg -i /dev/video0 -pix_fmt yuv420p -b:v 2000k -vcodec libx264 -preset veryfast -an v1.mp4

You need to use sudo privileges. The recording process is as shown above. When it ends, you can press the q key or Ctrl-C

The file name is v1.mp4

Open it and take a look

Video Explanation

MianQi

I watched the video and found that the picture was stable and the sound quality was clear.

LitchiCheng

MianQi posted on 2024-2-17 19:14 I watched the video and the explanation was stable and the sound quality was clear.

Thank you for your support. If you have any questions, please leave a message.

li-ai-meng

When rv1106 uses ffmpeg

• sudo apt update cannot resolve domain name
• sudo apt install ffmpeg cannot be installed, how can I solve it?

LitchiCheng

li-ai-meng posted on 2024-4-20 23:36 When using ffmpeg in rv1106, sudo apt update cannot resolve the domain name. sudo apt install ffmpeg cannot be installed. How can I...

You don't have internet?

li-ai-meng

LitchiCheng posted on 2024-4-21 10:28 You are not connected to the Internet, right?

If I use network sharing to share WiFi to the network card of the network port, then the ssh connected via the network cable will be automatically disconnected. How can I solve this problem?

LitchiCheng

li-ai-meng posted on 2024-4-22 19:29 If you use network sharing to share WiFi to the network card of the network port, and then the ssh connected via the network cable is automatically disconnected, how can this be solved? ...

I haven't encountered it before. You can research it yourself. I used a direct network cable.

四眼兔子

I would like to ask, after installing ffmpeg in the buildroot image I use, I cannot use libx264 encoding. How can I configure it to add support for libx264?

四眼兔子

LitchiCheng posted on 2024-2-18 09:07 Thank you for your support. If you have any questions, please leave a message

I would like to ask how to add libx264 support to the buildroot image. I haven't been able to do it for many days.

LitchiCheng

Four-eyed rabbit posted on 2024-10-8 10:25 Please advise on how to add support for libx264 to the buildroot image. I haven't done it for many days

How did you fail to operate it now?

四眼兔子

LitchiCheng posted on 2024-10-8 11:24 How did you fail to fix it now?

I modified the Buildroot configuration and added support for ffmpeg. The configuration under ffmpeg is as follows:

For support for libx264, search for the keyword "libx264" in buildroot but nothing is found:

But searching for "x264" yielded one, so I selected it, as shown below:

Then recompile, generate the image, burn it, use ffmpeg related instructions, call 264 encoding related parameters, and an error will be reported: libx264 encoding cannot be found

四眼兔子

LitchiCheng posted on 2024-10-8 11:24 How did you fail to fix it now?

Hello, can you reply? I can't add libx264 in buildroot