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• Nvidia on Linux : "Codec h264_cuvid is not supported"

  2 août 2020, par Raphael

  I configured FFMPEG to use Nvidia, but when I try this command

  


  ffmpeg -vsync 0 -hwaccel cuvid -c:v h264_cuvid -i input.mp4 -c:a copy -c:v h264_nvenc -b:v 5M output.mp4

  


  I get the error

  


  


  [h264_cuvid @ 0x556eaa3ea780] Codec h264_cuvid is not supported

  


  


  Here's the output of nvidia-smi :

  


  +-----------------------------------------------------------------------------+
| NVIDIA-SMI 450.51.05    Driver Version: 450.51.05    CUDA Version: 11.0     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  GeForce 940MX       On   | 00000000:01:00.0 Off |                  N/A |
| N/A   47C    P5    N/A /  N/A |    396MiB /  2004MiB |     22%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|    0   N/A  N/A      1131      G   /usr/lib/xorg/Xorg                 37MiB |
|    0   N/A  N/A      1883      G   /usr/lib/xorg/Xorg                129MiB |
|    0   N/A  N/A      2175      G   /usr/bin/gnome-shell               92MiB |
|    0   N/A  N/A      3649      G   ...AAAAAAAAA= --shared-files      126MiB |
+-----------------------------------------------------------------------------+


  


  And the output of ffmpeg :

  


  ffmpeg version git-2020-07-25-7c8ad72 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
  configuration: --enable-nonfree --enable-cuda-nvcc --enable-libnpp --enable-gpl --enable-libx264 --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64
  libavutil      56. 57.100 / 56. 57.100
  libavcodec     58. 97.102 / 58. 97.102
  libavformat    58. 49.100 / 58. 49.100
  libavdevice    58. 11.101 / 58. 11.101
  libavfilter     7. 87.100 /  7. 87.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100


  


• FFMPEG incorrect duration from raw video stream

  28 juillet 2020, par LMB

  I have the raw video data from a video stream (no audio) and the duration when I play the raw video in VLC is 67 seconds. When I convert the file to MP4 using FFMPEG the duration is 82.68 seconds.

  


  Video is available here : https://www.filedropper.com/showdownload.php/67seconds
I am using FFMPEG/FFPROBE version git-2020-07-21-b5f1e05 on Windows.

  


  Details of the raw video here :

  


  ffprobe -i 67seconds.raw
ffprobe version git-2020-07-21-b5f1e05 Copyright (c) 2007-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200621
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 55.100 / 56. 55.100
  libavcodec     58. 97.100 / 58. 97.100
  libavformat    58. 49.100 / 58. 49.100
  libavdevice    58. 11.101 / 58. 11.101
  libavfilter     7. 87.100 /  7. 87.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
Input #0, h264, from '67seconds.raw':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Video: h264 (High), yuv420p(progressive), 640x360 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1200k tbn, 50 tbc


  


  The mp4 duration matches my ffprobe calculation against the raw file itself (2067/25 = 82.68 seconds) :

  


  ffprobe -show_entries stream=r_frame_rate,nb_read_frames -select_streams v -count_frames -of compact=p=0:nk=1 -v 0 67seconds.raw
25/1|2067


  


  What would explain this difference in durations between the raw playback and the FFMPEG interpretation and how do I encode to the same duration for this and other stream data ?

  


• Which directory should i put FFmpeg ? [duplicate]

  25 juillet 2020, par Panda Gaming23

  I am making a discord bot and I get the following error

  


  node:4) UnhandledPromiseRejectionWarning: Error: FFmpeg/avconv not found!

2020-07-25T01:00:13.991518+00:00 app[worker.1]:     at Function.getInfo (/app/node_modules/prism-media/src/core/FFmpeg.js:130:11)

2020-07-25T01:00:13.991519+00:00 app[worker.1]:     at Function.create (/app/node_modules/prism-media/src/core/FFmpeg.js:143:38)

2020-07-25T01:00:13.991519+00:00 app[worker.1]:     at new FFmpeg (/app/node_modules/prism-media/src/core/FFmpeg.js:44:27)

2020-07-25T01:00:13.991520+00:00 app[worker.1]:     at AudioPlayer.playUnknown (/app/node_modules/discord.js/src/client/voice/player/BasePlayer.js:47:20)

2020-07-25T01:00:13.991520+00:00 app[worker.1]:     at VoiceConnection.play (/app/node_modules/discord.js/src/client/voice/util/PlayInterface.js:71:28)

2020-07-25T01:00:13.991522+00:00 app[worker.1]:     at play (/app/commands/play.js:14:34)

2020-07-25T01:00:13.991522+00:00 app[worker.1]:     at /app/commands/play.js:42:5

2020-07-25T01:00:13.991522+00:00 app[worker.1]:     at processTicksAndRejections (internal/process/task_queues.js:97:5)

2020-07-25T01:00:13.991629+00:00 app[worker.1]: (node:4) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 6)



  


  Here is the code

  


  const ytdl = require("ytdl-core");
const Discord = require("discord.js");

var servers = {};

module.exports = {
  name: "play",
  description: "this is a music play command!",
  execute(message, args) {
  
  function play(connection, message) {
        var server = servers[message.guild.id];
        
        server.dispatcher = connection.play(ytdl(server.queue[0], {filter: "audioonly"}));
        
        server.queue.shift();
        
        server.dispatcher.on("end", function () {
            if(server.queue[0]){
                play(connection, message);
            }
            else {connection.disconnect();}
        })
    }
    if (!args[0]) {
      message.channel.send("you need to provide a link!");
      return;
    }

    if (!message.member.voice.channel) {
      message.channel.send("you must be in ||a|| voice channel to play the bot!");
      return;
    }

    if (!servers[message.guild.id]) servers[message.guild.id] = { queue: [] };
    
    var server = servers[message.guild.id];
    
    server.queue.push(args[0]);
     
    if (!message.member.voice.connection) message.member.voice.channel.join().then(function(connection) {
    play(connection, message);
    })
  },
};


  


  I would like to know which directory I should put FFmpeg.

  


  I would also like to know if the FFmpeg executable has to be in a folder or compressed or if i can just place the executable in a certain directory

  


  I am hosting my bot using Heroku on a Mac using Discord.js V12

  


  Please help.

  


  Thanks !