scodec | Scala combinator library for working with binary data | Parser library
kandi X-RAY | scodec Summary
kandi X-RAY | scodec Summary
The primary abstraction is a ] shared/src/main/scala/scodec/Codec.scala), which supports encoding a value of type `A to a BitVector and decoding a BitVector to a value of type A. The [codecs] shared/src/main/scala/scodec/codecs.scala) objects provides a number of predefined codecs and combinators.
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Trending Discussions on scodec
QUESTION
I've been using ffmpeg to convert mkv to mp4 and the following is the command I used.
...ANSWER
Answered 2022-Jan-24 at 04:37Your input video stream uses AV1
codec, and as the log says,
QUESTION
I am having trouble launching VLC with arguments from python script. I am using python 3.9.6 on Win10 21H1 build 1081.
Running this command works from cmd.exe which I have translated in the python code.
...ANSWER
Answered 2021-Aug-17 at 12:56In first use second argument of subprocess.run() method for passing arguments for vlc Subprocess management.
Two arguments of subprocess.run() method is usefull:
- If capture_output is true, stdout and stderr will be captured. Usefull for troubleshooting.
- The timeout argument. If the timeout expires, the child process will be killed and waited for.
QUESTION
I've been using the Xamarin libVLCSharp player for a while on iOS and Android and it works well. I've added a transcoding feature, but for some reason my libVLCSharp code works fine to transcode on Android (change codec, bitrate, fps), but the same transcode media options on iOS (iPhone 12 pro, iOS 14.4.2) produce no changes in the output video file compared to the input video file. I have attached the sample video file which I am attempting to transcode.
Here is my C# code (which contains the transcode media options that works on Android, but not iOS):
...ANSWER
Answered 2021-Apr-26 at 01:41Try with
QUESTION
I want to stream a video from my computer to another computer using http
in vlc
. I have read the steps of how to do the streaming of the video from here
https://wiki.videolan.org/Documentation:Streaming_HowTo_New/
But here they have explain how you can stream from the PC and use the same one to receive the video but I want to stream to the other computer.
Here what steps I have followed till now:
- Opening the
VLC
player - Clicked on
stream
frommedia
menu. - Selected the file to stream.
- Now it is showing me the full path of the video so I clicked on next.
5.Now in the destination setup window I choosed
http
from drop down menu and click on Add but here the problem is it is only giving me the option to choose the port number and giving some path but not giving the option of entering theIP
address of the receiver side.
If I didn't give any IP so how it will know where to stream, If in the above step I just click on next after choosing port number it will show me to choose codec
If i choose the codec then in the next screen it will give me the stream string output
, Now in this stream string output
which is given below
ANSWER
Answered 2020-Dec-26 at 11:02I recommend using OBS instead: https://obsproject.com/ Look up the documentation for http streaming. Good luck and have fun!
QUESTION
I use ffmpeg to convert video to hls format (m3u8) and I use videojs to read this video. But I have a problem, subtitles appeared 1.4 seconds before the real timestamp.
I execute this command to extract video, audio and subtitles :
...ANSWER
Answered 2020-Jul-16 at 16:07See my previous answer:
Ffmpeg burnt in subtitles out of sync when converting to hls
For some reason FFMPEG adds about 1.4 seconds to the presentation time of the MPEG-2 Transport Stream when writing. So your video and audio are late. If you add -muxdelay 0 to your FFMPEG command line the sync issue should be resolved.
QUESTION
I have read many posts related to extracting streams per language with ffmpeg, but it seems that the -map 0:m:language:xxx
is global, and goes for all streams.
Let’s say I have a video file that contains hopefully one english audio stream and some french subtitle streams, among possibly many other streams. I want to get a smaller file with the first video track, the (first) english audio stream and all the french subtitle streams.
If I run
...ANSWER
Answered 2020-May-15 at 09:56I'm afraid this can't be done in a single command because of the "first english audio stream" requirement. However, you can first extract all english audio streams and then pick the first one in second command like so:
Extract the first video, all english audio streams, all french subtitle streams to a temporary file:
QUESTION
I am trying to add multiple languages of subtitles to a video using ffmpeg. I succeeded in adding 1 language, but can't seem to add a second one. I use this simple script to add english subtitles to my video.
...ANSWER
Answered 2020-Mar-31 at 17:07Without -map
for the subtitle stream, ffmpeg will select only one subtitle stream from among all inputs.
QUESTION
I have below case class
...ANSWER
Answered 2020-Mar-23 at 20:37What you would need to do is to define Codec
for tuple of strings, which then you will need to use to create codec for List[(String, String)]
which can be converted to Map[String, String]
and vice versa, hence covert Codec
using xmap
function.
So the final solution might look like:
QUESTION
I want to stream from my rapsberry the microphone via HTTP with VLC.
This command works fine:
...ANSWER
Answered 2020-Jan-08 at 00:19Not all codecs can be muxed, check VLC documentation.
Currently PCM(wave) can be muxed only in RTP.
mux
is the encapsulation method required for streaming. wav
in VLC is a container intended for storing.
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