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Reading FFmpeg bytes from named pipes, extracted NAL units are bad/corrupted

I'm trying to read .mp4 file wtih ffmpeg and read bytes from the named pipe which I then want to package to RTP stream and send those packets over WebRTC. What I learned is that H264 video consists of ...
Mr Squidr's user avatar
  • 143
0 votes
0 answers
707 views

How to create a named pipe in Windows?

Is it possible without much effort (e.g. in command line or powershell), to create a named pipe? My goal is to write continously to that pipe from a ffmpeg-process. Without opening a Pipe at first the ...
Che's user avatar
  • 49
2 votes
1 answer
728 views

combine raw video and audio buffer and play using named pipes by ffplay

I have one video buffer and one audio buffer, I want to combine these buffers and play using ffplay as a combined entity, currently I am using this command , which obliviously doesn't work... ffplay -...
user avatar
1 vote
1 answer
600 views

offloading to ffmpeg via named pipes in c#/dotnet core

I tried to break this down to the base elements so I hope this is clear. I want to take in a network stream, it may be a 1 way, it may be a protocol that requires 2 way communication, such as RTMP ...
bep's user avatar
  • 742
0 votes
1 answer
660 views

An efficient way to use Windows Named Pipe for IPC

I am using jna module to connect two processes that both perform FFMPEG commands. Send SDTOUT of FFMPEG command on the server side to NampedPipe and receive STDIN from that NampedPipe for other FFMPEG ...
Ehsan5's user avatar
  • 25
0 votes
0 answers
1k views

ffmpeg working with named pipes - Ubuntu 18

I am trying to work ffmpeg with name pipes but I can't get it to work as I want. My idea is simple: I have multiple segments of video and audio, I will use ffmpeg to use them as inputs and produce one ...
Nícholas's user avatar
0 votes
0 answers
2k views

Prevent FFmpeg from closing when a named pipe has been read completely

I'm doing a C++ application for a university project that takes a video file (e.g. matroska) and using FFmpeg (embedding commands inside std::system() instructions) apply these steps: Extract chunks ...
Werther Berselli's user avatar
2 votes
0 answers
123 views

How Read .mp4 video and then put it in NamedPipeServerStream?

How I Might Put .mp4 readed with StreamReader and then put it into pipe? I need to read the data and send it to the pipe. I read the .mpg4 file. Then I process it through ffmpeg. Am I trying to send ...
Oleg Pi's user avatar
  • 21
1 vote
0 answers
353 views

make fifo pipe in java(windows), write some data into it, let other process read the pipe

My objective is to create a named pipe(fifo) in windows(java), write some data(coming from camera) into that and invoke ffmpeg command to make mp4 from that data. But I suspect that it is not opening ...
sourav's user avatar
  • 123
2 votes
1 answer
2k views

Working with mkfifo and transport streams, is this possible?

I want to execute a bash script that would do the following: Application 'ffmpeg' generates a LIVE transport stream (.ts) file. I need to work on this live streaam (perform de-multiplexing, etc). ...
vedant gala's user avatar
0 votes
0 answers
1k views

Running ffmpeg with multiple pipes

Is there a way to let ffmpeg read from multiple buffers or multiple named pipes ? Basically I want to output the first loop to different pipes instead of .jpg files, and run the video filter command ...
baci's user avatar
  • 2,568
0 votes
0 answers
192 views

Vb.Net How Can I Send Video To Named Pipe?

I want to create name pipe and send all videos on my listbox to that named pipe. I can create a named pipe like this : Dim p_to_ffmpeg As NamedPipeServerStream p_to_ffmpeg = New ...
sword1st's user avatar
  • 545
1 vote
0 answers
266 views

Ffmpeg only receives a piece of information from the pipe

First of all - my english is not very good, i`m sorry for that. I use ffmpeg from c# to convert images to video. To interact with ffmpeg, I use pipes. public async Task<byte[]> ExecuteCommand( ...
Maxim Fedorov's user avatar
1 vote
1 answer
1k views

Can ffmpeg resume reading from a pipe after interruption?

I couldn't decide whether this was superuser, SO or video production so my apologies if you think I got it wrong. I've got a number of different video streams from various inputs on the computer (...
T Kilney's user avatar
6 votes
1 answer
2k views

Redirect FFMPEG's output to multiple named pipes on Windows

I am trying to stream video and audio data into two separate named pipes on Windows. ffmpeg.exe -f dshow -i video="My camera name":audio="My microphone name" -map 0:1 -ac 1 -f f32le \\.\pipe\...
tearvisus's user avatar
  • 2,023

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