Questions tagged [ffmpeg]
a free software package including libraries and programs for handling multimedia data.
97
questions
1
vote
1answer
13 views
Avconv streaming to URL - need help
I'm trying to learn as I go but haven't managed to come up with the answer to my issue here. I'm trying to stream to a URL using the 'pi-camera-connect' package and the 'avconv' package.
The video on ...
1
vote
2answers
67 views
Read ip camera stream video on python using opencv3
I installed opencv3 installation link on my raspberrypi 3 and i've tested this, everything is ok, but when i try to read the ipcamera video stream encountered this error
self.stream = cv2....
0
votes
0answers
19 views
Make sox play .mp4 files
I am trying to play audio files through usb speaker on Raspberry Pi 3B+. As I understood, sox only has mp4 support if you compile it agains ffmpeg.
So far I did
git clone git://git.code.sf.net/p/sox/...
0
votes
0answers
20 views
Is it possible to gradually save data while recording. In order not to lose them in case of power failure?
I use the ffmpeg library to record audio and video. If a power failure occurs, the video file becomes 0 bytes. How can I record, so as not to lose data?
my ffmpeg configuration
ffmpeg \
-hide_banner ...
0
votes
0answers
124 views
ffmpeg for h264 encoding on raspberry pi2
I'm working on my Rasperry pi 2B, with Raspbian 2019-04 and I have compiled ffmpeg as described here:
https://www.reddit.com/r/raspberry_pi/comments/5677qw/...
1
vote
0answers
53 views
Audio/Video drift when streaming to Twitch using FFMpeg
I'm trying to build a Twitch streaming box to stream from an input device.
Link to the project is:
https://github.com/jimbobbennett/RaspberryPiTwitchStreamer
My setup is:
Raspberry Pi Model 3B+
...
1
vote
0answers
42 views
How to merge the audio stream incoming from other system
The ffmpeg is running on my RPi 3B, currently.
My RPi has USB H.264 CAM and USB audio converter and is sending live stream to YouTube with rtmp.
Some case, audio source is coming about 150m far from ...
1
vote
1answer
65 views
FFMPEG Raspivid Videos are shorter than they are supposed to be
I am recording and piping my video with the following command :
raspivid -w 1920 -h 1080 -fps 25 -b 7000000 -o - -t 0 | ffmpeg -re -f h264 -framerate 25 -i - -vcodec copy -y -r 25 -strict ...
0
votes
0answers
43 views
SIP video call Performance issue
I'm facing performance issue during video call made between RaspberryPI3 and Laptop, the video image from RaspberryPI3 are not running smooth and the overall CPU usage consumes more than 80%. Here ...
1
vote
0answers
67 views
Cross-compiling for Raspberry Pi 0/1
I am trying to cross compile FFmpeg for a Raspberry Pi 0/1 running Raspbian Strech.
I am following this guide on the official site but I have come to a standstill.
Although I am trying to compile ...
0
votes
0answers
220 views
RPi Zero W (Jessie) ffmpeg illegal instruction
Trying to build and install ffmpeg with hardware encoder and rtsp streaming enabled. Attempted to follow instructions here: (https://github.com/KhaosT/homebridge-camera-ffmpeg/wiki/Raspberry-PI) but ...
0
votes
0answers
222 views
FFMPEG video rendering on raspberry pi 3b+
I'm currently planning on making a little GIF making machine.
After a button press, the rPi records a 5 seconde video from a 720p USB camera.
Then, the rPi should chroma key the video and then convert ...
1
vote
0answers
308 views
ffmpeg - Video Audio Capture with Compression
I am running ffmpeg script that captures webcam video and microphone audio and then uses video compression before saving the audio/video mp4 file. The script works on my desktop but cause error on my ...
0
votes
1answer
54 views
FFMpeg doesn't have tools/zmqsend
We are trying to use zmqsend (it's part of the ffmpeg repository) to communicate with a ffmpeg instance. On Raspbian, ffmpeg is configured with --enable-libzmq, and libzmq-dev is installed, but ...
0
votes
0answers
194 views
How to record video from two cameras simultaneously?
I connected two PS3 Eye cameras to my raspberry pi. Separately, cameras work fine. I can record the video in any supported resolution and frame rate. Unfortunately when I tried to record video from ...
1
vote
1answer
986 views
How to increase usb webcam fps?
To record video from my USB webcam I use ffmpeg with v4l2 driver (command below).
ffmpeg -f v4l2 -r 30 -s 640x480 -an -sn -i /dev/video0 -f avi temp
Unfortunately fps is too low for 640x480 (around ...
0
votes
0answers
114 views
raspicam TCP video streaming over ssh - almost there… but need help
I am trying to pipe raspivid over ssh to my main computer, and then via gstreamer send the stream to a dummy video device (thanks to V4l2loopback)
environment :
v4l2loopback version: 0.12.0
kernel ...
0
votes
0answers
42 views
Record video and audio from framebuffer
I'm trying to record in a video the actual content of the framebuffer along the audio currently outputted (alsa). For the video I'm using the following command:
ffmpeg -y -f fbdev -i /dev/fb0 -vsync -...
0
votes
0answers
106 views
Getting low FPS while using x11grab ffmpeg
Question : Why I am getting ~7 FPS even I have specified 30 ?
I am using raspberry pi 3 and compiled latest soruce code from the GIT and still getting low fps(~7) while using below ffmpeg command ...
1
vote
0answers
232 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
vote
1answer
415 views
Raspberry Pi Zero hardware based video encoding
I'm trying to build a dashcam with a Raspberry Pi Zero with an official Raspberry Pi Camera (version 2) in an official Raspberry Pi Zero case mounted with a old GPS device cradle. I installed motion ...
0
votes
1answer
164 views
Retroactive audio recording/continuously record audio, save last X minutes on command?
I'm trying to set up my Raspberry Pi to continuously record the last X minutes of audio until given the command to save it to a file. The only comparison I can make is an NVIDIA Shadowplay for audio. ...
0
votes
1answer
1k views
Pi3 B+ FFMPEG encode x265 very slow
I just bought a RPI3 B+ with the hopes of using it as a media encoding box. I built ffmpeg, and use the following to transcode media from h264 to h265
ffmpeg -i "$i" -c:v libx265 -crf 28 -c:a aac -b:...
0
votes
2answers
2k 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
481 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 ...
1
vote
0answers
140 views
Audioinjector streaming over RTP input errors: “hw:0,0: Protocol not found”, “Unknown input format: 'alsa'”
Using a RPI 3B running Debian Jessie, I've been trying to get a simple stream of the "flatmax" audioinjector's onboard mic over RTP to a VLC player. I've tried many different commands such as:
...
0
votes
1answer
320 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 ...
2
votes
1answer
100 views
What is ffmpeg “rpt1” version?
When I run apt-cache show ffmpeg, there are two versions available. One of them has "rpt1" on the end of the version number. I can't find any info about this; what is the difference between the two? ...
0
votes
0answers
663 views
Broadcasting a local RTSP video stream with a Pi 3
I would like to use an RPi 3 to broadcast a local RTSP stream from a wireless cam to YouTube Live. OBS accomplishes this on my Macbook but OBS doesn't appear to work on the Pi and the solutions I've ...
1
vote
0answers
796 views
Streaming RTSP feed over DLNA
I have a 'smart' TV that has a very limited set of functions, one of them being it can stream videos from any DLNA server on the LAN.
I have an RTSP stream on the network that I would like to view on ...
1
vote
0answers
707 views
Streaming audio on the Raspberry Pi Zero W with ffmpeg
I have a problem with ffmpeg giving no audio when recording using alsa.
Does anyone know how to get a Raspberry Pi Zero W to record and stream audio with ffmpeg using alsa?
I have a project where I ...
0
votes
0answers
1k views
How to stream low latency camera feed to RTMP server
Are there any optimizations or recommended techniques for streaming a camera feed from a raspberry pi to an RTMP server. Currently I get a 1-2 second lag when I run:
raspivid -n -t 0 -w 1280 -h 720 -...
0
votes
1answer
364 views
Straming Raspberry camera to own Apache Server - Command not found
I am planning to implement a camera video stream from the Raspberry Pi to its own Apache server. I trying to solve this for a week now and i am pretty frustrated by now. I came across this tutorial ...
0
votes
1answer
220 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 ...
0
votes
1answer
621 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 --...
1
vote
1answer
4k views
Create a RTSP stream using motion and a USB webcam
I've just set up a fresh RaspberryPi (Zero W) and started installing motion, in order to receive a livestream of my (old) USB webcam (Microsoft LiveCam HD-3000). I know this is a pretty old one but ...
0
votes
1answer
1k views
Problem with every even photo using USB camera
I use Raspberry Pi 3 with Linux RaspberryPi 4.9.59-v7+ onboard together with Logitech HD Webcam C270. It works quite well, I am able to preview video stream in Qt V4l2 Test Utility, take a photo with ...
4
votes
1answer
1k views
ffmpeg performance degrades over time
I am using a Pi Zero W with the Pi camera (noir) to stream live to Youtube using ffmpeg.
The command line I am using is:
raspivid -o - -t 0 -h 720 -w 1296 -fps 24 -b 6000000 | ./ffmpeg -ar 44100 -ac ...
2
votes
0answers
611 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
117 views
Can armhf compiled software run on armel os?
I am setting up my media server on my raspberry pi 3 (armv7) using docker. I downloaded a image of a media server and installed it, the problem is that image uses Opensuse and if I run dpkg --print-...
0
votes
1answer
3k views
avconv for converting mkv to mp4
I would like to convert a video file from mkv to mp4.
Usually (Debian 9, main laptop), I do:
$ ffmpeg -i input.mkv -c:v libx264 output.mp4
On the other hand, on raspbian ffmpeg is replaced with ...
1
vote
0answers
223 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
2answers
844 views
Using ffmpeg to capture whatever is being globally sent to video output (ie: hdmi output)
I have setup a RTSP monitor with a Raspberry Pi 3, using this tutorial:
https://community.ubnt.com/t5/UniFi-Video/Tutorial-RTSP-Raspberry-Pi-B-Viewer-6-Cam-4-Cam/td-p/1536448
TLDR: it uses the ...
0
votes
1answer
244 views
“avplay audio.wav” generates error: “Could not initialize SDL - Unable to open a console terminal”
When I try to play an audio file using avplay on a raspberry pi3 running raspbian jessie, I get the following error.
pi@raspberrypi:~/sounds $ /usr/bin/avplay clip1.wav
avplay version 11.9-6:11.9-1~...
1
vote
1answer
2k views
How do I set up live Twitch streaming from RetroArch on a Pi 3?
I have been tinkering with Raspberry Pi's for a few years now and have some experience with installs, command line and using SSH e.t.c...
I currently have Pi 3 with Retropie 1.6.3 installed and I can ...
1
vote
1answer
5k views
FFMPEG: Unknown input format: 'alsa'
I have a Raspberry Pi 3 and I keep trying to install FFMPEG, but whenever I try to record audio through my USB webcam's mic with
sudo ffmpeg -f alsa -i hw:1 -t 30 out.wav
I get the following error:
...
1
vote
1answer
635 views
Tons of Bluetooth: hci0: Frame reassembly failed (-84) messages
Sorry in advance if the explanation is too general, I can attach code if needed...
I'm working on a project where a python program is running in a device, and a Bluetooth socket is opened and ...
1
vote
0answers
2k 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
vote
1answer
4k views
RPI-3: Performance issue on FFmpeg with mmal support
Issue: FFMPEG GPU/Hardware acceleration is not enabled on RPI. FFPlay is jittery, patchy and takes close to 100% CPU.
Description: The video streaming of mpeg4 files is very slow (the video streaming ...
3
votes
1answer
415 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:...
