Questions tagged [video]

Questions related to playing or editing video on the Raspberry Pi, both in SD and HD.

Filter by
Sorted by
Tagged with
1
vote
0answers
715 views

Mame on Raspbian gives error: “Could not initialize SDL No available video device”

I am building a MAME cabinet. I got some ROMS, tested everything on my laptop, and now I am trying to put it on a raspberry pi 3 to use in the cabinet. I thought it would be nice to minimize memory ...
1
vote
1answer
4k views

RaspberryPi Camera - bcm2835-v4l2 kernel module source

I want to make some optimizations on camera kernel module so it can work better with a camera multiplexer module. There are 4 camera multiplexed by GPIO pins and some hardware. I have cloned the v4l-...
1
vote
1answer
740 views

USB cam with raspberry pi 3: achieving maximum FPS

I am using a ub camera with raspberry pi. When I run v4l2-ctl --list-formats-xext, I get the max FPS is 15 with resolution of 2592x1944. However when I run ffmpeg -t 5 -f v4l2 -framerate 15 -...
1
vote
1answer
381 views

Use Raspberry Pi GPIO to sync multiple video players. Possible?

Is it possible to use GPIO to sync multiple RasPi video players? As shown in the picture below, I need to sync 16 RasPi video players. The master RasPi will trigger the video players (start, stop, ...
0
votes
1answer
907 views

RPi Zero W - /dev/video0

So I have RPi Zero w with raspiban Jessie installed, with a Flex cable connected camera. when I run raspistill I am able to see an image, however when trying to get to ls /dev/video0, it is not ...
1
vote
1answer
228 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
1answer
131 views

Flask server blog question

I am about to embark on my first experience with Rasb Pi and I want to utilize the code from this blog on how to stream motion JPEG thru a Python Flask server, Flask Video Streaming Revisited. The ...
1
vote
0answers
298 views

How can I broadcast OSC messages to multiple RasPi's on my network?

I am trying to figure out how to broadcast OSC messages to multiple RasPi's on my network. I have 14 RasPi's, each running a video player that can be controlled with OSC. Each RasPi and connected to ...
0
votes
1answer
218 views

RasPi Zero W | Random Screen Flashes

MY PROBLEM: My RasPi Zero W is causing random screen flashes. SOME BACKGROUND: I have three RasPi Zero W's running Jessie Lite, that I use for displaying and syncing SD video on multiple Dell ...
0
votes
2answers
3k views

Installing MPV with FFmpeg + MMAL: Could not create EGL surface!

I would like to build mpv from source for the raspberry pi. This is turning out to be quite difficult. Error pi@raspberrypi:~ $ ./mpv-build/mpv/build/mpv --hwdec=mmal --vo=rpi --log-file=~/mpv.log ...
2
votes
1answer
832 views

MPV with MMAL does not open application window

I've built mpv on the raspberry pi 3b+ (stretch-2018-06-27) using the following procedure from: No OpenGL hardware rendering using mpv Quick & Easy: Hardware Accelerated MPV on Raspberry Pi 1/2/3 ...
0
votes
1answer
486 views

mpv error - could not get dispmanx

I've tried to install mpv for raspberry pi using mpv-build (with maal, 256 graphics mem) because I would like to modify the code. it seemed like it was finally a success until I tried to run ...
0
votes
0answers
67 views

Sync 5 Raspberry Pi3 B+

Hi I'm new to programming and Raspberry Pi. What I am looking for is what platform I need to play in sync a unique video-loop for each RPi (off a USB). I have installed Raspian. Each is connected to ...
1
vote
1answer
62 views

Stream video hosted on a server onto a display

I am new to Raspberry Pi. I am working on a project in which a video which is hosted on a server needs to be displayed on a LED screen via a Raspberry Pi. The Pi will receive the video from the server ...
0
votes
0answers
2k views

Video Chat App for Raspberry Pi?

I am searching for an app through which I can send my voice and video feed to another user on laptop using picam and mic module and recieve voice from him. I am gonna use Raspberry Zero W with picam. ...
2
votes
2answers
209 views

128GB in Rpi3b+?

I’m thinking about getting a Samsung 128GB microsd as they’re cheap in Amazon and I assume not fake/shanzai. But can the Rpi3b+ use this? Also it is speed 10 and U3 rated because there’s no longer ...
3
votes
2answers
673 views

2560x1080 how many Hz?

Periodically I’m tempted by the ultra wide monitors on the market. If I buy one, it’ll be the 29” LG but my question is can the new pi 3b+ do 60 Hz at 2560x1080?
1
vote
0answers
390 views

Displaying only video/image while python program running on background

I have a Raspberry Pi 3B with a Python3 code running 24/7. Right now, I'm running Raspbian Stretch desktop on console mode with no I/O. I only connect a screen via HDMI and an USB keyboard for ...
1
vote
0answers
1k views

3B+ Raspbian video playback slow

Just set up a brand new little system but when I try to play back videos they don't quite play at the right speed. It wouldn't be noticeable except that it makes the audio just a little flat- sounds ...
4
votes
1answer
305 views

Does gpu memory affect video processing speeds using openCV or image array manipulations?

I am using my pi for video processing. The data transformations include image array manipulations and object detection. It does not include any video display. Essentially, the pi takes in a video ...
0
votes
1answer
628 views

Force 1080i video at 59.94fps

I'm trying to set up a Raspberry pi to output video to an ancient TV transmitter which requires HD interlaced video at 59.94fps. The Pi HDMI output is connected to a BlackMagic micro HDMI to SDI ...
1
vote
0answers
440 views

How to wrap a H264 stream to a MP4 container

I have successfully streamed an h264 video over the local network with this command. raspivid -o - -t 0 -n -w 1280 -h 720 -vf -vs -fps 30 -b 3500000 | cvlc -vvv stream:///dev/stdin --sout '#rtp{...
1
vote
0answers
188 views

Picamera video problem (video is not complete)

I'm using my picamera in combination with the raspberry pi to capture video data synchrounously to other sensor data. Every sensor captures data in its own thread. All sensors start at the start of ...
0
votes
1answer
337 views

AVFrame YUV420P to dispmanx VC_IMAGE_YUV420

I'm using ffmpeg for decoding a video with h264_mmal encoder. And all test videos are in YUV420P color encoding. Also I'm using dispmanx for drawing frames from a video. Only problem which I have is ...
1
vote
1answer
576 views

How to setup video/graphics correctly on the Raspberry Pi 3?

My question is similar to this. However I need to clarify some details. I can't find anything about this statement "I also read that the vc4 driver does not use the gpu_mem parameter, confusing ...
3
votes
1answer
172 views

omxplayer works but fbdevsink doesn't — any ideas?

I'm trying to output video content on the Pi without X11. I'd like to use tvservice to set the resolution settings then be able to run pipelines like this: gst-launch-1.0 videotestsrc ! videoconvert ...
0
votes
1answer
1k views

Problems using bcm2835_v4l2 module w/ ffmpeg

I've run into some problems using the native bcm2835_v4l2 module on my Raspberry Pi Zero W (running Raspbian Stretch). The module is loaded and the associated video device is visible: $ v4l2-ctl --...
0
votes
0answers
164 views

HD video streaming via webcam very choppy

I've tried Cheese and GuvcView, but both are extremely choppy. When I open open GuvcView even if I try and set FPS to 24/sec it only will give me 3 FPS. I am remoting into the RP3 via TeamViewer. ...
2
votes
3answers
2k views

I want to webcam stream 24/7 to open Internet

I am a teacher, and we are using a 3-D printer. I have a Raspberry Pi 3 Model B, as well as the Webcam Module Version 2, and I have the camera set up and can see video by typing in localhost:8081 into ...
1
vote
1answer
755 views

Show multiple HD streams at once on raspberry pi?

We have a situation where we have a large number of incoming HD video streams which we would like to monitor in a way similar to this wall of monitors each showing 16 channels. This can probably be ...
0
votes
2answers
3k views

UV4L audio + video recording or stream?

I have experimented with a number of different ways of streaming both audio and video from the raspberry pi. The UV4L web server has great webRTC support, and the bi-directional audio/video ...
1
vote
1answer
1k views

How to stream and store video from Raspberry Pi camera and watch it live

I want to create a live video streaming through raspberry pi which can be integrated with my website. The stream must be an open standard so that it can be easily played on any JS video player with ...
1
vote
1answer
84 views

Programming the night vision sensor

I have set this up with the PIR sensor and a night camera. I have been able to write a simple(ish) program (P1) so it so that when motion is detected, it saves an image – the filename of the image is ...
1
vote
1answer
1k views

VLC black screen on videos [duplicate]

i've just installed the last version of raspian desktop on my new raspberry. I did the update and upgrade and i did a reboot. I installed VLC and i copyed a film .avi in the microsd card in the videos ...
2
votes
1answer
1k views

How to change gamma and contrast through pi

I want to watch the movie. I use omxplayer and computer monitor. Is it possible to change gamma and contrast?
1
vote
0answers
456 views

Trouble getting Flash Player plugin to run under Chromium

I have just set up a Raspberry Pi 3 model B, which came with the "Boolean Box" for my daughter. Everything worked fine, but the browser that was on the SD card did not run Flash, which would be ...
0
votes
0answers
56 views

Raspberry pi 3 Memory partition

I have installed Raspbian stretch latest on my Rpi 3 B on a 8gb sdcard and I can't run any videos or windows application through wine. It says 1G/3G partition is required and no video is played ...
1
vote
1answer
3k views

changing default apps in raspbian

I was not able to change the default app in raspbian (lxde and pcmanfm) when right clicking and using the corresponding menu entries and the checkbox. The lists that contain the default associations ...
1
vote
1answer
784 views

Videoplayer in Kivy GUI not working. GStreamer problem?

I'm trying to create a video player GUI for my Raspberry Pi (Raspbian Linux 9 Stretch) using python 2.7 and Kivy. The GUI was created, but the video refused to load or play. I think the problem may ...
1
vote
0answers
826 views

How to capture non-fish-eye video with wide angle lens?

We're using this fisheye lens: https://www.amazon.com/SainSmart-Fish-Eye-Camera-Raspberry-Arduino/dp/B00N1YJKFS/ref=sr_1_1?ie=UTF8&qid=1511631477&sr=8-1&keywords=raspberry+pi+wide When we ...
2
votes
0answers
88 views

Libav-tool avconv: Error Creating Filter when Combining Still Images

I'm trying to use the Libav tool to collate still images into mp4 file. I am using it like this avconv -r 1 -I *jpg -vcodec libx264 filename.mp4 The images are named with the date and time and form ...
4
votes
1answer
2k views

SPI vs 8-bit TFT

I read that 8-bit is faster than SPI, how much faster is 8-bit than SPI? Say, if I wanted to run a video loop of a wheel spinning, would the speed difference between SPI and 8-bit mode be obvious?
1
vote
2answers
10k views

Restore Pi to factory settings without flashing SD

My question is different to How can I reset to the factory settings? hence why I have posted. The problem I am facing is that I have a Raspberry B+ which I have had for about 2 years. I didn't use ...
2
votes
1answer
269 views

VGA Mode on RaspPi

Reading the config.txt docs, I found this: These values are valid if hdmi_group=1 (CEA) hdmi_mode=1 VGA Does this make the output on my HDMI port be VGA? I have a cable that with a VGA and ...
1
vote
0answers
33 views

Looking for a setup / software solution for Media Playback

Disclaimer: I have a Raspberry B+ My RPi is currently connected to my amplifier (via cinch). I set it up as an Airplay Receiver and it works well for music (mostly Spotify). Now I want to use it as ...
1
vote
1answer
5k views

Raspberry PI Zero W browsers (Chromium, Midori, Kweb, Epiphany) choppy playing videos. Any better options?

Basically, my project includes displaying high-quality images videos different files like text, pdf etc.. on raspberry pi zero W. What is the best OS suitable for this application? I have used ...
1
vote
1answer
172 views

Best technique to communicate from 25+km

I am working on my senior capstone and I am needing a way to send commands with as low latency as possible. I have found the LoRa but I am concerned there will be a high delay. I fly high altitude ...
0
votes
1answer
309 views

Text overlay over video stream when saving to file system

I'am using raspberry pi zero as controller which communicate over UART with external board with five sensors. What I need is a way to save video stream from raspicam to filesystem with embedded text (...
2
votes
0answers
253 views

audio video out of sync / framerate issue?

I am trying to sync the raspberry pi camera (revision 1.3) to an external microphone. The sync is fine for the first 5 minutes or so, but around the 20 minute mark, the difference becomes really ...
1
vote
1answer
175 views

Start pi_video_looper from Python

I am new to Python so please be kind ;) I am trying to start the Adafruit Video Looper from a python script. Basically I have this code: from pi_video_looper.Adafruit_Video_Looper.video_looper ...

1 2
3
4 5
10