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• avutil/common : Move everything inside inclusion guards

  4 février 2021, par Andreas Rheinhardt

  avutil/common : Move everything inside inclusion guards
  libavutil/common.h is a public header that provides generic math
  
  functions whereas libavutil/intmath.h is a private header that contains
  
  plattform-specific optimized versions of said math functions. common.h
  
  includes intmath.h (when building the FFmpeg libraries) so that the
  
  optimized versions are used for them.
  This interdependency sometimes causes trouble : intmath.h once contained
  
  an inlined ff_sqrt function that relied upon av_log2_16bit. In case there
  
  was no optimized logarithm available on this plattform, intmath.h needed
  
  to include common.h to get the generic implementation and this has been
  
  done after the optimized versions (if any) have been provided so that
  
  common.h used the optimized versions ; it also needed to be done before
  
  ff_sqrt. Yet when intmath.h was included from common.h and if an ordinary
  
  inclusion guard was used by common.h, the #include "common.h" in intmath.h
  
  was a no-op and therefore av_log2_16bit was still unknown at the end of
  
  intmath.h (and also in ff_sqrt) if no optimized version was available.
  Before a955b5965825631986ba854d007d4e934e466c7d this was solved by
  
  duplicating the #ifndef av_log2_16bit check after the inclusion of
  
  common.h in intmath.h ; said commit instead moved these checks to the
  
  end of common.h, outside the inclusion guards and made common.h include
  
  itself to get these unguarded defines. This is still the current
  
  state of affairs.
  Yet this is unnecessary since 9734b8ba56d05e970c353dfd5baafa43fdb08024
  
  as said commit removed ff_sqrt as well as the #include "common.h" from
  
  intmath.h. Therefore this commit moves everything inside the inclusion
  
  guards and makes common.h not include itself.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavutil/common.h

• Nodejs couldn't find the ffmpeg module for some reason

  29 décembre 2020, par Chawchawchaw

  I need to display the live streaming vidoe(rtsp) on a website(http, vue framework) with nodejs and vue framework.

  


  I've looked it up a lot and got the basic logic of what they are and how it works.
So I'm planning on to convert rtsp to hls with nodejs using socket.io and display it on a web.(let me know if there's more efficient way way to do it)

  


  The thing is, for some reason, when I try to develop it in my backend(nodejs), node just keep sends me an error that FFMpeg module wasn't found. It's been over a week.. please help.

  


  Btw, all works with ffmpeg cmd(window powerShell).

  


  How I set up(ffmpeg) :

  


  


  1. downloaded ffmpeg from https://ffmpeg.org/

     


  


  2. added to system path : C :\Users\Marie\Desktop\ffmpeg-4.3.1-2020-11-19-full_build\bin

     


  


  3. tested with window powerShell and converted rstp to m3u8 :

     


     ffmpeg -i 'rtsp ://ip.ip.ip/media/video1' -hls_time 3 -hls_wrap 10 'C :\Users\Marie\Desktop\tmp\hls/streaming.m3u8'

     


  


  


  below is a screen shot of no. 3 result


  


  ---

  


  how I set up(nodejs)

  


  

  1. npm i ffmpeg fluent-ffmpeg rtsp-ffmpeg

  


  2. I've just copied and pasted the example working code and changed rtsp link to mine. e.g : (https://www.npmjs.com/package/rtsp-ffmpeg)

  


  


  => didn't work out, error says can't find ffmpeg module

  


  

  3. set up path manually e.g.) ffmpeg.setFfmpegPath(path)

  


  


  => didn't work out. error says can't find ffmpeg module

  


  ...
I've seriously tried almost everything like delete, re-install ffmpeg, changed path, added path manyally, .. Please help....

  


  Edited :
package.json

  


  {
  "name": "streaming",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "node app.js"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "^4.17.1",
    "ffmpeg": "0.0.4",
    "fluent-ffmpeg": "^2.1.2",
    "jsmpeg": "^1.0.0",
    "node-media-server": "^2.2.4",
    "node-onvif": "^0.1.7",
    "node-rtsp-stream": "0.0.9",
    "rtsp-ffmpeg": "0.0.15",
    "socket.io": "^3.0.4",
    "ws": "^7.4.1"
  }
}


  


  app.js

  


  const Stream = require('node-rtsp-stream')

// let path = 'C:/Users/Marie/Desktop/ffmpeg-4.3.1-2020-11-19-full_build/bin/ffmpeg.exe'
// let path = 'C:/Users/Marie/Desktop/ffmpeg-4.3.1-2020-11-19-full_build/bin/'
let path = 'C:/Users/Marie/Desktop/ffmpeg-4.3.1-2020-11-19-full_build/bin'
const ffmpeg = require('fluent-ffmpeg')

ffmpeg.setFfmpegPath(path)

stream = new Stream({
  name: 'name',
  streamUrl: 'rtsp://ip.ip.ip.ip/media/video1',
  wsPort: 9999,
  ffmpegOptions: { // options ffmpeg flags
    '-stats': '', // an option with no neccessary value uses a blank string
    '-r': 30 // options with required values specify the value after the key
  }
})


  


  Error : spawn ffmpeg ENOENT

  


  app.js (for another test)

  


  const app = require( 'express' )(),
    server = require( 'http' ).Server( app ),
    io = require( 'socket.io' )( server ),
    rtsp = require( 'rtsp-ffmpeg' )

process.env.FFMPEG_PATH = 'C:/Users/Marie/Desktop/ffmpeg-4.3.1-2020-11-19-full_build/bin/ffmpeg.exe'
// console.log( rtsp.FFMpeg )

server.listen( 6147 )
var uri = 'rtsp://ip.ip.ip.ip/media/video1',
    stream = new rtsp.FFMpeg( { input: uri } )
io.on( 'connection', function ( socket )
{
    var pipeStream = function ( data )
    {
        socket.emit( 'data', data.toString( 'base64' ) )
    }
    stream.on( 'data', pipeStream )
    socket.on( 'disconnect', function ()
    {
        stream.removeListener( 'data', pipeStream )
    } )
} )
app.get( '/', function ( req, res )
{
    res.sendFile( __dirname + '/index.html' )
} )


  


  error :
FMpeg executable wasn't found. Install this package and check FFMpeg.cmd property

  


  nodejs version = 10.16.3

  


• Unable to find a suitable output format for ' -framerate 5' -framerate 5 : Invalid argument

  7 décembre 2020, par Rashmi N

  I am trying to create .ts files from a set of images. My ffmpeg command is

  


   [/usr/bin/ffmpeg,  -framerate 5,  -re -f image2pipe ,  -i - ,  -pix_fmt yuv420p ,  -preset veryfast ,  -c:v libx264 ,  -profile:v main ,  -crf 20 ,  -sc_threshold 0 ,  -g 48 ,  -keyint_min 48 ,  -hls_time 5 ,  -hls_list_size 0 ,  -hls_flags append_list+omit_endlist+round_durations ,  -b 800k ,  -maxrate 1100k ,  -bufsize 2200k , /home/rashmi/Music/output.m3u8]


  


  Im calling this from a java function

  


  List<string> command = new ArrayList&lt;>();&#xA;            command.add(PATH);&#xA;            command.add(" -framerate " &#x2B; streamInput.getVideoFPS());&#xA;            command.add(" -re -f image2pipe ");&#xA;            command.add(" -i - ");&#xA;            command.add(" -pix_fmt yuv420p ");&#xA;            command.add(" -preset veryfast ");&#xA;            command.add(" -c:v libx264 ");&#xA;            command.add(" -profile:v main ");&#xA;            command.add(" -crf 20 ");&#xA;            command.add(" -sc_threshold 0 ");&#xA;            command.add(" -g 48 ");&#xA;            command.add(" -keyint_min 48 ");&#xA;            command.add(" -hls_time " &#x2B; streamInput.getSegmentLength() &#x2B; " ");&#xA;            command.add(" -hls_list_size 0 ");&#xA;            command.add(" -hls_flags append_list&#x2B;omit_endlist&#x2B;round_durations ");&#xA;            command.add(" -b 800k ");&#xA;            command.add(" -maxrate 1100k ");&#xA;            command.add(" -bufsize 2200k ");&#xA;            command.add(streamInput.getManifestFilePath());&#xA;&#xA;&#xA;            System.out.println("FFMPEG COMMAND:\n"&#x2B; command.toString());&#xA;            ProcessBuilder pb = new ProcessBuilder(command);&#xA;            pb.redirectInput(ProcessBuilder.Redirect.PIPE);&#xA;            pb.directory(Paths.get(streamInput.getFolderPath()).toFile());&#xA;            Process ffmpegProcess = pb.inheritIO().start();&#xA;&#xA;            OutputStream ffmpegInput = ffmpegProcess.getOutputStream();&#xA;&#xA;&#xA;&#xA;            for(File frame: frames){&#xA;//                System.out.println(frame.getAbsolutePath());&#xA;&#xA;                byte[] image;&#xA;                image = new byte[(int)frame.length()];&#xA;&#xA;                FileInputStream fileInputStream = new FileInputStream(frame);&#xA;                fileInputStream.read(image);&#xA;                ImageInputStream iis = ImageIO.createImageInputStream(&#xA;                        new ByteArrayInputStream(image));&#xA;                BufferedImage img = ImageIO.read(iis);&#xA;                ImageIO.write(img, "PNG", ffmpegInput);&#xA;&#xA;&#xA;&#xA;            }&#xA;</string>

  


  I am getting

  


  [/usr/bin/ffmpeg,  -framerate 5,  -re -f image2pipe ,  -i - ,  -pix_fmt yuv420p ,  -preset veryfast ,  -c:v libx264 ,  -profile:v main ,  -crf 20 ,  -sc_threshold 0 ,  -g 48 ,  -keyint_min 48 ,  -hls_time 5 ,  -hls_list_size 0 ,  -hls_flags append_list+omit_endlist+round_durations ,  -b 800k ,  -maxrate 1100k ,  -bufsize 2200k , /home/rashmi/Music/output.m3u8]
ffmpeg version 4.3-2~18.04.york0 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version='2~18.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
[NULL @ 0x55a3c18a3e40] Unable to find a suitable output format for ' -framerate 5'
 -framerate 5: Invalid argument
javax.imageio.IIOException: I/O error writing PNG file!
    at java.desktop/com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1277)
    at java.desktop/javax.imageio.ImageWriter.write(ImageWriter.java:613)
    at java.desktop/javax.imageio.ImageIO.doWrite(ImageIO.java:1628)
    at java.desktop/javax.imageio.ImageIO.write(ImageIO.java:1594)
    at com.streaming.hls.utils.StreamSegmentGenerator.buildStreamSegmet(StreamSegmentGenerator.java:81)
    at com.streaming.hls.utils.StreamSegmentGenerator.main(StreamSegmentGenerator.java:110)
Caused by: java.io.IOException: Stream closed
    at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442)
    at java.base/java.io.OutputStream.write(OutputStream.java:162)
    at java.desktop/javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:255)
    at java.desktop/com.sun.imageio.plugins.png.ChunkStream.finish(PNGImageWriter.java:142)
    at java.desktop/com.sun.imageio.plugins.png.PNGImageWriter.write_IHDR(PNGImageWriter.java:487)
    at java.desktop/com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1244)
    ... 5 more


  


  I tried replacing -framerate with -r, that also threw the same error. But when I run the command directly in the terminal its working. I am not sure what is wrong.
[NULL @ 0x55a3c18a3e40] Unable to find a suitable output format for ' -framerate 5'
-framerate 5 : Invalid argument