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• Discord.js music bot : TypeError : this.inputMedia.pipe is not a function

  7 août 2019, par Ivs

  I’m writing a music Discord bot using Discord.js. The bot uses ytdl-core, node-opus, and I have installed ffmpeg on my OS (Ubuntu 19.04). When I try to make the bot join a voice channel and start playing a YouTube URL, it throws the following error :

  TypeError: this.inputMedia.pipe is not a function
  
      at FfmpegProcess.connectStream (/home/ivan/.../node_modules/discord.js/node_modules/prism-media/src/transcoders/ffmpeg/FfmpegProcess.js:73:21)
  
      at new FfmpegProcess (/home/ivan/.../node_modules/discord.js/node_modules/prism-media/src/transcoders/ffmpeg/FfmpegProcess.js:28:14)
  
      at FfmpegTranscoder.transcode (/home/ivan/.../node_modules/discord.js/node_modules/prism-media/src/transcoders/ffmpeg/Ffmpeg.js:34:18)
  
      at MediaTranscoder.transcode (/home/ivan/.../node_modules/discord.js/node_modules/prism-media/src/transcoders/MediaTranscoder.js:27:31)
  
      at Prism.transcode (/home/ivan/.../node_modules/discord.js/node_modules/prism-media/src/Prism.js:13:28)
  
      at AudioPlayer.playUnknownStream (/home/ivan/.../node_modules/discord.js/src/client/voice/player/AudioPlayer.js:97:35)
  
      at VoiceConnection.playStream (/home/ivan/.../node_modules/discord.js/src/client/voice/VoiceConnection.js:478:24)
  
      at voiceChannel.join.then.connection (/home/ivan/.../commands/play.js:32:47)
  
      at process._tickCallback (internal/process/next_tick.js:68:7)

  Here is my code :

  const ytdl = require("ytdl-core");
  
  
  
  exports.run = (client, message, args, config) => {
  
      return new Promise((resolve, reject) => {
  
          if (args.length !== 1) {
  
              message.channel.send("Play command takes 1 YouTube link.");
  
              reject("Wrong number of arguments");
  
              return;
  
          }
  
          const voiceChannel = message.member.voiceChannel;
  
          if(!voiceChannel) {
  
              message.channel.send("You need to connect to a voice channel first");
  
              reject("Not connected to voice channel");
  
              return;
  
          }
  
          const perms = voiceChannel.permissionsFor(message.client.user);
  
          if (!perms.has("CONNECT")) {
  
              message.channel.send("You need to add the 'connect' permission for this bot");
  
              reject("NO CONNECT PERMISSION");
  
              return;
  
          }
  
          if (!perms.has("SPEAK")) {
  
              message.channel.send("You need to add the 'speak' permission for this bot");
  
              reject("NO SPEAK PERMISSION");
  
              return;
  
          }
  
          const streamOptions = { seek: 0, volume: 1, passes: 2 };
  
          voiceChannel.join()
  
              .then(connection => {
  
                  const stream = ytdl(args[0], {filter: 'audioonly'});
  
                  const dispatcher = connection.playStream(ytdl, streamOptions);
  
                  dispatcher.on("end", reason => {
  
                      console.log("reason: " + reason);
  
                      voiceChannel.leave();
  
                  })
  
                  dispatcher.on("error", err => {
  
                      console.log(err);
  
                  })
  
              })
  
          .catch(err => console.log(err));
  
      });    
  
  }

  I have tried reinstalling ffmpeg, node and npm, discord.js and node-opus. I have the newest version of Discord.js installed, and ffmpeg version 4.1.3-0ubuntu1. Anyone have any suggestions ?

  Thanks.

• How can I install brew (or ffmpeg) on Heroku ?

  28 mai 2018, par Donovant

  As per the title, I’d like to know whether and how to install brew, because I need to install ffmpeg lib

  I tried what it’s written here :

  sh -c "$(curl -fsSL https://raw.githubusercontent.com/Linuxbrew/install/master/install.sh)"
  
  
  
  test -d ~/.linuxbrew && PATH="$HOME/.linuxbrew/bin:$HOME/.linuxbrew/sbin:$PATH"
  
  test -d /home/linuxbrew/.linuxbrew && PATH="/home/linuxbrew/.linuxbrew/bin:/home/linuxbrew/.linuxbrew/sbin:$PATH"
  
  test -r ~/.bash_profile && echo "export PATH='$(brew --prefix)/bin:$(brew --prefix)/sbin'":'"$PATH"' >>~/.bash_profile
  
  echo "export PATH='$(brew --prefix)/bin:$(brew --prefix)/sbin'":'"$PATH"' >>~/.profile

  but then brew is still not found :

  bash: brew: command not found

• FFMpeg on Android, undefined references to libavcodec functions, although it is listed on command line

  1er juin 2016, par dimsuz

  I have a problem with unresolved references to ffmpeg’s libavcodec functions, so far failed to find the answer in other places (including my mind) :)

  Let me describe my setup - it takes space, but is really basic, it might be that I’m failing to see some error...

  I built an FFMPeg with ndk r5 toolchain, ffmpeg port I got from http://bambuser.com/opensource (as recommended in other questions here). It built fine, so I put several static libraries in my project like this :

  <project>/jni/bambuser_ffmpeg/libavcodec.a
  
  <project>/jni/bambuser_ffmpeg/libavformat.a
  
  <project>/jni/bambuser_ffmpeg/libavcore.a
  
  <project>/jni/bambuser_ffmpeg/libavutil.a
  
  </project></project></project></project>

  Next, I created an Android.mk in bambuser_ffmpeg folder to list these libs as a prebuilt ones :

  LOCAL_PATH := $(call my-dir)
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE := bambuser-libavcore
  
  LOCAL_SRC_FILES := libavcore.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE := bambuser-libavformat
  
  LOCAL_SRC_FILES := libavformat.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  (same for other two libs)

  Next, I have another module which references these libs in its Android.mk, sets up include paths, etc :

  LOCAL_PATH := $(call my-dir)
  
  
  
  include $(CLEAR_VARS)
  
  
  
  LOCAL_MODULE := ffmpegtest
  
  LOCAL_STATIC_LIBRARIES := bambuser-libavcodec bambuser-libavcore bambuser-libavformat bambuser-libavutil
  
  LOCAL_SRC_FILES := ffmpeg_test.cpp
  
  LOCAL_C_INCLUDES := $(LOCAL_PATH)/../bambuser_ffmpeg/include
  
  LOCAL_LDLIBS    := -llog -lz
  
  
  
  include $(BUILD_SHARED_LIBRARY)

  And finally I have my ffmpeg_test.cpp which is really basic, like this :

  #include 
  
  
  
  extern "C" {
  
  #include <libavcodec></libavcodec>avcodec.h>
  
  #include <libavformat></libavformat>avformat.h>
  
  }
  
  
  
  extern "C" {
  
      JNIEXPORT jint JNICALL Java_com_the7art_ffmpegtest_PaintThread_testFFMpeg(JNIEnv* env, jobject obj, jstring fileName);
  
  }
  
  
  
  JNIEXPORT jint JNICALL Java_com_the7art_ffmpegtest_PaintThread_testFFMpeg(JNIEnv* env, jobject obj, jstring fileName)
  
  {
  
      av_register_all();
  
      return 0;
  
  }

  When I run ndk-build, it compiles fine, but when linking it prints an unresolved reference to almost every function in libavcodec. Looks like only this lib’s functions are failing to be located :

  /home/dimka/src/mobile/android/ffmpegtest/obj/local/armeabi/libavformat.a(allformats.o) :
  In function

  av_register_all':
 /home/dimka/work/suzy/tmp/ffmpeg-android/ffmpeg/libavformat/allformats.c:47:
 undefined reference to
 

  avcodec_register_all’
  /home/dimka/src/mobile/android/ffmpegtest/obj/local/armeabi/libavformat.a(utils.o) :
  In function

  parse_frame_rate':
 /home/dimka/work/suzy/tmp/ffmpeg-android/ffmpeg/libavformat/utils.c:3240:
 undefined reference to
 

  av_parse_video_rate’
  /home/dimka/src/mobile/android/ffmpegtest/obj/local/armeabi/libavformat.a(utils.o) :
  In function

  parse_image_size':
 /home/dimka/work/suzy/tmp/ffmpeg-android/ffmpeg/libavformat/utils.c:3234:
 undefined reference to
 

  av_parse_video_size’
  /home/dimka/src/mobile/android/ffmpegtest/obj/local/armeabi/libavformat.a(utils.o) :
  In function

  flush_packet_queue':
 /home/dimka/work/suzy/tmp/ffmpeg-android/ffmpeg/libavformat/utils.c:1277:
 undefined reference to
 

  av_free_packet’
  /home/dimka/work/suzy/tmp/ffmpeg-android/ffmpeg/libavformat/utils.c:1283 :
  undefined reference to

  av_free_packet'
 /home/dimka/src/mobile/android/ffmpegtest/obj/local/armeabi/libavformat.a(utils.o):
 In function

  get_audio_frame_size’ :
  /home/dimka/work/suzy/tmp/ffmpeg-android/ffmpeg/libavformat/utils.c:766 :
  undefined reference to

  av_get_bits_per_sample'
 /home/dimka/src/mobile/android/ffmpegtest/obj/local/armeabi/libavformat.a(utils.o):
 In function
 

  ff_interleave_add_packet’ :
  /home/dimka/work/suzy/tmp/ffmpeg-android/ffmpeg/libavformat/utils.c:2909 :
  undefined reference to `av_dup_packet’

  and so on...

  I fail to figure why this is happening. I tried running ndk-build V=1 to check the actual linking command, and libavcodec is sitting there perfectly right, like it should. All other ffmpeg libs are there too.

  Any hints ?