Questions tagged [h264]
h264 is a widely used video compression codec standard
32
questions
7
votes
3
answers
15k
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{...
- 608
4
votes
1
answer
998
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 ...
- 41
4
votes
1
answer
820
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:...
- 41
3
votes
3
answers
4k
views
Hardware-encoding (h264_v4l2m2m) a MJPEG stream from a webcam
I have a 1080p webcam connected to a Raspberry Pi 4B over USB. The camera supports the following formats:
Raw : yuyv422 : YUYV 4:2:2
Compressed: mjpeg : Motion-JPEG
...
- 131
2
votes
1
answer
5k
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How do you set hardware video encoder options with V4L2 M2M?
TL;DR When using ffmpeg and the h264_v4l2m2m hardware-accelerated codec, how do I set the encoder options such as the bitrate and key frame interval?
Details
I am using these commands to capture raw ...
- 1,804
2
votes
2
answers
1k
views
Problem with VLC video player on my Raspberry Pi 4
I have captured video from a Raspberry Pi camera and saved to desktop as video.h264. VLC player opens with huge window. I cannot navigate the window to get to any settings.
It worked fine for a few ...
2
votes
1
answer
5k
views
Video encoding on Raspberry Pi 4 via ffmpeg and h264_v4l2m2m produces corrupted video
Raspberry Pi 4, 4 GB
Rapsberry Pi OS Lite, 64 bit (2022-09-22)
Kernel 5.15.61-v8+
ffmpeg 4.3.4-0+deb11u1+rpt3
config.txt has the following relevant entry:
# Enable DRM VC4 V3D driver
dtoverlay=vc4-...
- 43
2
votes
1
answer
3k
views
How to improve "motion" framerate, or feed "raspivid" h264 stream into "motion"?
I'm running Pi 4 with a 5 megapixel OV5647 camera attached to its camera port. I'm using motion to run motion detection, with the goal of running low-res stream at 2 frames per second for detection ...
- 171
2
votes
1
answer
88
views
PiCamera stream differences
I'm trying to create a h264 stream from my Pi 3 and display it on an Android application.
After several attempts I found quite a simple solution:
raspivid -n -ih -t 0 -w 640 -h 480 -fps 25 -b 2000000 -...
- 122
2
votes
1
answer
271
views
Monitoring hardware accelerated video decoding
I'm using RPi4 board with Raspbian on top of it
I wonder if there is a way to tell if any process currently using hardware accelerated video playback?
Ideally it would be nice to be able to say ...
- 121
2
votes
0
answers
889
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 ...
2
votes
0
answers
2k
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:
...
- 111
2
votes
0
answers
3k
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 ...
- 1,406
1
vote
2
answers
4k
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UV4L raspicam webstreaming in H264
I'm having some trouble getting H264 streaming to work. I've been digging around a little and it seems the problem is that UV4L is sending raw H264, which is not directly playable in Chrome. Does ...
- 11
1
vote
1
answer
14k
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 ...
1
vote
1
answer
66
views
converting .h264 to other video formats [closed]
How do I convert(compile?) h264 video from raspivid to a usable format?
I have tried using various video conversion programs in windows but none recognize the h254 format.
1
vote
0
answers
161
views
Can hardware decoding of h.264 be enabled in Kodi on Ubuntu?
Running Ubuntu 23.04 (and previously 22.10) on a Pi 4 doesn't seem to allow me to hardware decode h.264 in Kodi from Debian from the Ubuntu repo. I draw this conclusion from the Video decoder: f-h264 (...
- 185
1
vote
0
answers
720
views
Pi 4: ffmpeg can't set gop size when using h264_v4l2m2m to encode video
The Raspberry Pi 4 can encode videos using hardware acceleration by using 64 bit Raspberry Pi OS, a particular ffmpeg fork and the h264_v4l2m2m codec. Alternatively, Ubuntu and the 4.4 version of ...
- 43
1
vote
0
answers
194
views
Strange segfault after several hours of running program
I created a program fairly closely related to hello_pi/hello_video.c. And for some reason after several hours of running the program I get these very strange segfaults that I cannot for the life of me ...
- 141
1
vote
0
answers
332
views
Is it possible to run H.264 hardware encoding on video from a monochrome ArduCam module?
I am early in the design phase for a camera array of ~12 units. Each unit will be comprised of an ArduCam camera module (possibly the OV9281) and a Raspberry Pi to compress the video data and send it ...
- 216
1
vote
0
answers
698
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/...
- 11
1
vote
1
answer
352
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 ...
- 13
1
vote
0
answers
1k
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 ...
- 11
0
votes
1
answer
190
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 ...
- 155
0
votes
1
answer
1k
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....
- 1,406
0
votes
1
answer
1k
views
Omxplayer doesn't play videos when OpenGL enabled
Today I setup my new RPI3 B+ with raspbian stretch as a desktop (OpenGL enabled 128 mem split). I use RPIs for some time as servers but not as desktop. I tried to play video (with avc codec) with ...
- 1
0
votes
0
answers
10
views
OMXplayer cannot seek in HLS stream
I am using OMXplayer to play HLS streams from NRK with a RPI3B+. Until now I have used dbuscontrol.sh to seek forward and backward in the streams, but suddenly it has become impossible to seek.
...
0
votes
0
answers
65
views
GStreamer: Mjpeg to H264 with hardware encoding
I'm having trouble with my pipeline for taking mjpeg video from a USB webcam and encoding it into H264 with the hardware encoding through GStreamer on a PI4 (ubuntu 22.04, but I have tried pi os 64 ...
0
votes
0
answers
147
views
Stream video with RTSP (live 555)
I'm trying to stream video from the pi with live555 (RTSP).
I don't have any errors on the raspberry pi side :
pi@raspberrypi:~/live/raspi $ raspivid -w 1024 -h 768 -fps 25 -b 300000 -t 99999999 -o - |...
- 9
0
votes
0
answers
319
views
Trying to do hardware H264 encoding with gstreamer on a Raspberry Pi 4B
I am attempting to do hardware-accelerated H264 encoding on a Raspberry Pi 4B. I am running bullseye with an aarch64 kernel and a 32-bit userland:
ben@raspberrypi:~ $ cat /etc/os-release
PRETTY_NAME=&...
0
votes
0
answers
249
views
Random disconnection of an USB Camera with Raspberry Pi 4
I've got a Raspberry Pi 4 with an USB2.0 camera connected through a slip ring. When I boot, there's no problem at all, but sometimes the Raspberry is unable to detect the camera while streaming (I'm ...
0
votes
0
answers
3k
views
Raspberry pi 4 - Hardware offload of h264 video decoding in Chromium
I am trying to develop a web application displayed in chromium in kiosk mod (78.0.3904.108 (Official Build) Built on Raspbian , running on Raspbian 10 (32-bit)).
I am hoping to play h264 medias ...
- 1