Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [h264]

h264 is a widely used video compression codec standard

0
votes
1answer
26 views

raspivid doesn't include b-frames

I'm streaming raw h264 using raspivid on Raspberry Pi 3 and PiCam v1 . However, even I set the h264 profile to main or high, stream only contains I and P frames. Here is the command that I use for ...
1
vote
0answers
44 views

Low video quality with h264_omx encoder

I have a Logitech C922 webcam and I'm recording using ffmpeg with this settings: ffmpeg -thread_queue_size 1024 -f alsa -r 16000 -i hw:1,0 -f video4linux2 -thread_queue_size 512 -s 1920x1080 -i /dev/...
-1
votes
0answers
19 views

Does raspivid buffer NAL units?

I'm quite a noob with data encoding type stuff, and attempting to use websockets to stream raw h.264 to browser clients. My question is, are the buffers that raspivid streams NAL (Network Abstraction ...
0
votes
0answers
54 views

PiCamera starts dropping frames after being run for a few minutes

I am trying to use a Raspberry Pi B+ for long-duration video capture, however I have noticed some odd behavior when running the camera for a long period of time. After a few minutes of recording video,...
0
votes
1answer
48 views

Wrong timing in picamera video capture?

I'm using a real simple python script to capture a video file to a file, taken from the "simple recipes" guide : import picamera camera = picamera.PiCamera() camera.resolution = (640, 480) camera....
1
vote
1answer
101 views

Should playing uncompressed RGB video files consume strictly less resources than playing encoded files?

I don't know much about video, but to play an h264 encoded file into a screen, don't you have to decode it to something like RGB first? I would expect playing a video that is in RGB format to skip the ...
0
votes
0answers
22 views

H.264- B Frame Setting Change

I'm currently using the Pi to stream H.264 video to Amazon Kinesis Video Streams. However, I'm only able to send video intermittently. Their support says that my camera is producing video with B ...
0
votes
0answers
253 views

P2P streaming on raspberry pi 3 using ffmpeg and h264

I am new on using ffmpeg on Raspberry pi 3. I want to implement P2P streamer application for Raspberry pi 3. For now I am just using localhost. I wrote a code on my laptop elitebook 8470p. The code I ...
3
votes
0answers
369 views

uv4l and janus “use of hardware codec is disabled in this restricted edition”

I have a rpi 3 with the v2 camera running stretch 9.1. I've installed raspicam and uv4l according to the instructions on linux-projects.org. I have the janus gateway setup on a separate box. I am ...
2
votes
0answers
487 views

ffmpeg slideshow on raspberry pi raspbian

I'm trying to make a slideshow video from few (in this case 3) .jpgs. To do this, I'm using ffmpeg -r 1/5 -i bat%03d.jpg -c:v libx264 -r 30 -pix_fmt yuv420p proba12.mp4 and actually it works on ...
1
vote
1answer
5k views

Setting up RTSP using v4l2

Around one year ago I built some Raspberry pi streaming device fitting on a model train. Being unhappy with the setup process on how to receive the stream on windows (using MPlayer), I decided to use ...
2
votes
0answers
690 views

omxplayer ignores --fps option when playing h264 file

I made a video using the Raspberry Pi camera that came with a .h264 extension. I know that this file doesn't have the fps metadata associated with it. I found that playing it with omxplayer like this: ...
1
vote
0answers
946 views

Video streaming over Bluetooth from RPi3 to android app

I'm building a robot that is controlled using a Android app by sending commands over Bluetooth. I would like to also get a video over bluetooth to my android app from RPi3. My question here is, did ...
1
vote
0answers
1k views

OpenCV VideoWriter and Hardware h264

I'm working on a python/pygame application, and i'm facing some difficulties when I try to capture a video from a usb camera (640x480) to a h264 encoded file, through OpenCV. Everything work fine with ...
3
votes
1answer
352 views

How Can I Stream Video from SD Card over Ethernet via RTSP?

Problem: I need to stream a video file from my RPi SD card over RTSP to display on a client computer. I'm new to RPi and Linux-based interfaces. I'm also new to RTSP and video streaming. My hardware:...
3
votes
2answers
4k views

Get h264 from Webcam Logitech C922

I've read multiple threads about streaming a Logitech C920 Webcam via raspberry pi with cvlc using basically this command: cvlc v4l2:///dev/video1:chroma=h264:width=800:height=600 --sout '#standard{...