gst | Go bindings for GStreamer
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kandi X-RAY | gst Summary
This package is based on GLib bindings. It should be goinstalable. Try. See examples directory and
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QUESTION
I am writing a program in C language using gtk3 library. I want it to be able to receive a h264 video stream from a certain IP address (localhost) and UDP/RTP PORT (5000).
In order to do it, I am using gstreamer to both stream and receive the video.
I managed to stream the video using the following pipeline :
send.sh :
gst-launch-1.0 filesrc location=sample-mp4-file.mp4 ! decodebin ! x264enc ! 'video/x-h264, stream-format=(string)byte-stream' ! h264parse ! rtph264p
I managed to display the video in a new window using the following pipeline :
receive.sh :
gst-launch-1.0 udpsrc port=5000 caps="application/x-rtp,encoding-name=H264" ! rtph264depay ! decodebin ! videoconvert ! autovideosink
At this point, everything works fine. But now I want to receive the stream and display it inside my C/GTK program. I am using the following code (found on internet and adapted to make it compile) :
...ANSWER
Answered 2021-Jun-15 at 11:39Here is the solution I found :
Changin xvimagesink by ximagesink :
sink = gst_element_factory_make ("xvimagesink", NULL); g_assert(sink);
becomes
sink = gst_element_factory_make ("ximagesink", NULL); g_assert(sink);
Hope it will help some of you facing the same problem.
QUESTION
Is there any better way for doing this using plain javascript or using lodash package. I feel this code is a bit ugly and violates the DRY principle.
...ANSWER
Answered 2021-Jun-06 at 13:44Create an array of keys you want to transform, and then reduce it, using the original object as the initial value:
QUESTION
I am inserting some values into database table using ORM.
Here is what I am doing:
...ANSWER
Answered 2021-May-31 at 05:56is_routed
should be a boolean field.
This is how it is suppose to be -
is_routed = models.BooleanField(default=False, blank=False, null=False)
rest of the things look perfect to me. It must work now.
QUESTION
I am trying to use the camera feed on my Jetson Nano (running headless over SSH) in 2 different applications.
From the command line, I am able to run
...ANSWER
Answered 2021-May-26 at 22:52Well, I managed to figure it out thanks to both commentors, here is my solution on my Jetson Nano, but it can be tweaked for any Gstreamer application.
First, use v4l2loopback
to create 2 virtual devices like so:
QUESTION
I am trying to find out that how bitbake search for recipe in build process ? For example, I have a recipe something like below:
...ANSWER
Answered 2021-May-26 at 10:28You have two different files: a .bb
and a .bbappend
.
A .bb
is the base recipe of one (or multiple) packages. It generally describe how to fetch, configure, compile, install files in a package for your target.
A .bbappend
file is an 'append' file. It allows a meta (here meta-petalinux) to modify an existing recipe in another meta without copying it. A .bbappend
can modify any steps of the bb file: source fetch, configure, compile, install...
You can for example create your own bbappend of Gstreamer, to enable pango (disbaled by default on my Yocto). The bbappend filename is gstreamer1.0-plugins-base_%.bbappend
and only contains PACKAGECONFIG_append = "pango"
The Yocto Manual can give you more information on bbappend files here.
QUESTION
I am trying to print an Invoice modal component, for the POS-58-Series printer using the window.print(), but I am not able to print the specific component as a header is also printing.
...ANSWER
Answered 2021-May-25 at 12:58you can use
QUESTION
I'd like to be able to stream the video from my webcam to an Android app with a latency below 500ms, on my local network.
To capture and send the video over the network, I use ffmpeg.
...ANSWER
Answered 2021-May-20 at 11:24I do not know a native low latency player in Android.
However you can use a WebView
in Android Studio and use a player in the web.
With this solution I streamed the webcam of my pc to my phone (in the local network) with livecam.
They use websockets to transmit the video frame by frame, which is not ideal. With this method I had 370 ms of latency.
QUESTION
So I am trying to make a drum machine with gstreamer. For those who are not familiar with a drum machine have a look at:
https://www.youtube.com/watch?v=KC7UaUD5rEA
Basically you have a specific sample loaded to a track. Each track has 16 steps which you can enable or disable. When you press play the drum machine will loop over the steps and when a step is enabled it will play that sound.
I got it working with the current setup: 8 x (filesrc | wavparse | audioconvert | volume) | audiomixer | alsasink
I put the pipeline in play state and each step I perform a seek_simple back to the start of the pipeline. To trigger the sound I mute and demute the wav each step according to the wanted rhythm/pattern.
The issue: By performing the seek back to the start the tail of the wav sample/sound is cut off and this makes a choppy sound. Ideally I'd like to re-trigger a wav sample but the previous one should continue to play until done.
The question: How can I re trigger a sound without cutting of it's tail?
Ps: I've tried to play with the seek flags "flush", "keep_unit", ... but without success.
My loop:
...ANSWER
Answered 2021-May-19 at 07:44I managed to achieve my goal by using this C library: https://soundprogramming.net/programming/tutorial-using-sdl2-and-sdl_mixer-to-play-samples/
This example gives a way to play multiple sound simultaneously. I then made a python wrapper around it and push a wav file to it. Follow this tutorial:
https://docs.python.org/3/extending/index.html
Feel free to post the gstreamer solution.
thx
QUESTION
I'm very new to gstreamer and rust and am trying to render a video made from sections of other videos. Based on the docs, gstreamer-rs examples, and this question about doing the same thing in python, I think my code looks pretty good, but throws errors.
This is my code:
...ANSWER
Answered 2021-May-19 at 07:11I didn't try running your code, but one problem I found when reading was the following
QUESTION
I need to add a custom stream-property to my gstreamer player command, however when I try to set the property as an integer, it doesn't get passed to pulseaudio. For example:
...ANSWER
Answered 2021-May-18 at 09:27After a lot of trial and error I found that this works:
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