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• ffmpeg send video to ffserver without reencode, CPU usage still very high.How ?

  3 septembre 2019, par Wayne Chen

  I’m using ffmpeg to send H.264 video to ffserver. Command looks like this :

  ffmpeg -re -stream_loop -1 -i test.mp4 -c copy http://localhost:8090/feed1.ffm

  I thought with -c copy option, the CPU usage of ffmpeg should be very low, but it actually used 99% of CPU.Please help cutdown the usage of CPU.
  Thanks

  ----------------------

  ffserver.conf :

  <feed>
  
  File /tmp/feed1.ffm
  
  FileMaxSize 5M
  
  ACL allow 127.0.0.1
  
  ACL allow 192.168.1.250
  
  </feed>
  
  
  
  <stream>
  
  Feed feed1.ffm
  
  Format rtp
  
  VideoCodec libx264
  
  VideoFrameRate 25
  
  VideoBufferSize 80000
  
  VideoSize 1920x1080
  
  PreRoll 15
  
  NoDefaults
  
  NoAudio
  
  </stream>

  ffserver log：

  ffserver -d -f /etc/ffserver.conf
  
  ffserver version 3.3.9 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609
  
    configuration: --enable-gpl --enable-nonfree --enable-pthreads --enable-libmp3lame --enable-libtheora --enable-libx264 --enable-version3 --enable-ffplay --enable-ffserver --enable-shared
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  Tue Sep  3 09:45:38 2019 Codecs do not match for stream 0
  
  Tue Sep  3 09:45:38 2019 [ffm @ 0x1072d80]Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  Tue Sep  3 09:45:38 2019 Codecs do not match for stream 0
  
  Tue Sep  3 09:45:38 2019 [ffm @ 0x10695e0]Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  Tue Sep  3 09:45:38 2019 FFserver started.
  
  Tue Sep  3 09:45:39 2019 192.168.1.240 - - [] " " 200 0
  
  Tue Sep  3 09:45:39 2019 192.168.1.240 - - [] " " 200 0
  
  Tue Sep  3 09:45:39 2019 192.168.1.240:0 - - "PLAY test2-rtsp/streamid=0 RTP/TCP"
  
  Tue Sep  3 09:45:39 2019 192.168.1.240:0 - - "PLAY test1-rtsp/streamid=0 RTP/TCP"
  
  Tue Sep  3 09:45:39 2019 192.168.1.240:0 - - "PLAY test2-rtsp/streamid=0 RTP/TCP"
  
  Tue Sep  3 09:45:39 2019 192.168.1.240:0 - - "PLAY test1-rtsp/streamid=0 RTP/TCP"

  FFmpeg log：

  wayne@ubuntu:~$ ffmpeg -re -stream_loop -1 -i test_main.mp4 -c copy http://localhost:8090/feed1.ffm & ffmpeg -re -stream_loop -1 -i test_minor.mp4
  
  4 -c copy http://localsudffmpeg -re -stream_loop -1 -i test_main.mp4 -c copy http://localhost:8090/feed1.ffm & ffmpm
  
  ffmpeg version 3.3.9 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609
  
    configuration: --enable-gpl --enable-nonfree --enable-pthreads --enable-libmp3lame --enable-libtheora --enable-libx264 --enable-version3 --enable-ffplay --enable-ffserver --enable-shared
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_main.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.40.101
  
    Duration: 00:00:51.60, start: 0.000000, bitrate: 987 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 985 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
  [tcp @ 0x19ca600] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  [tcp @ 0x19d58a0] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 0x19d67c0] VBV bufsize set but maxrate unspecified, ignored
  
  [libx264 @ 0x19d67c0] using SAR=1/1
  
  [libx264 @ 0x19d67c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 0x19d67c0] profile Progressive High, level 4.0, 4:2:0, 8-bit
  
  Output #0, ffm, to 'http://localhost:8090/feed1.ffm':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      creation_time   : now
  
      encoder         : Lavf57.71.100
  
      Stream #0:0(eng): Video: h264 (libx264), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 1000k tbn, 25 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : Lavc57.89.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 655360000 vbv_delay: -1
  
  frame=   13 fps=0.0 q=0.0 size=       4kB time=00:00:00.00 bitrate=N/A speed=   0x    
  
  frame=   26 fps= 26 q=0.0 size=       4kB time=00:00:00.00 bitrate=N/A speed=   0x    
  
  frame=   38 fps= 25 q=0.0 size=       4kB time=00:00:00.00 bitrate=N/A speed=   0x    
  
  frame=   43 fps= 18 q=28.0 size=       4kB time=-00:00:00.03 bitrate=N/A speed=N/A    
  
  frame=   55 fps= 19 q=28.0 size=      16kB time=00:00:00.44 bitrate= 297.9kbits/s speed=0.151x    
  
  frame=   59 fps= 17 q=28.0 size=      44kB time=00:00:00.60 bitrate= 600.7kbits/s speed=0.171x  

• Downloader downloads high quality video but muted

  5 avril 2023, par Stef-Lev

  I have created a next.js video downloader and I want to download videos of the highest quality. When I trigger the download I only get a muted mp4 file (in high quality) and a muted mp3 file. Here is the api file. How could I download the video, the audio and then merge them with ffmpeg correctly ?

  


  import ytdl from "ytdl-core";
import fs from "fs";
import { Server } from "socket.io";
import ffmpeg from "fluent-ffmpeg";

export default async function handler(req, res) {
  if (res.socket.server.io) {
    console.log("Socket is already running");
    res.end();
    return;
  }
  console.log("Socket is initializing");
  const io = new Server(res.socket.server);
  res.socket.server.io = io;

  io.on("connection", async (socket) => {
    console.log(socket.id, "socketID");

    const sendError = async (msg) => {
      socket.emit("showError", msg);
    };

    const sendProgress = async (msg) => {
      console.log(msg);
      socket.emit("showProgress", msg);
    };

    const sendComplete = async (msg) => {
      console.log(msg);
      socket.emit("showComplete", msg);
    };

    const downloadVideo = async (url) => {
      try {
        const videoInfo = await ytdl.getInfo(url);
        const outputPath = path.join(
          process.cwd(),
          "mp4s",
          `${videoInfo.videoDetails.title}.mp4`
        );
        const audioPath = path.join(
          process.cwd(),
          "mp4s",
          `${videoInfo.videoDetails.title}.mp3`
        );

        const videoFormat = ytdl.chooseFormat(videoInfo.formats, {
          quality: "highestvideo",
          filter: "videoonly",
        });
        const audioFormat = ytdl.chooseFormat(videoInfo.formats, {
          quality: "highestaudio",
          filter: "audioonly",
        });
        const videoStream = ytdl(url, { quality: videoFormat.itag });
        const audioStream = ytdl(url, { quality: audioFormat.itag });

        const videoOutput = fs.createWriteStream(outputPath);
        const audioOutput = fs.createWriteStream(audioPath);

        audioStream.pipe(audioOutput);
        videoStream.pipe(videoOutput);

        let downloadedBytes = 0;
        let totalBytes =
          videoFormat.contentLength || videoInfo.length_seconds * 1000000;

        videoOutput.on("data", (chunk) => {
          downloadedBytes += chunk.length;
          const progress = Math.round((downloadedBytes / totalBytes) * 100);
          sendProgress({ progress });
        });

        videoOutput.on("error", (err) => {
          console.error(err);
          sendError({
            status: "error",
            message: "An error occurred while writing the video file",
          });
        });

        audioOutput.on("error", (err) => {
          console.error(err);
          sendError({
            status: "error",
            message: "An error occurred while writing the audio file",
          });
        });

        videoOutput.on("finish", () => {
          audioOutput.on("finish", () => {
            if (fs.existsSync(outputPath) && fs.existsSync(audioPath)) {
              const outputFile = path.join(
                process.cwd(),
                "mp4s",
                `${videoInfo.videoDetails.title}-with-audio.mp4`
              );
              const command = ffmpeg()
                .input(outputPath)
                .input(audioPath)
                .outputOptions("-c:v copy")
                .outputOptions("-c:a aac")
                .outputOptions("-b:a 192k")
                .outputOptions("-strict -2")
                .output(outputFile)
                .on("end", () => {
                  fs.unlink(outputPath, () => {});
                  fs.unlink(audioPath, () => {});
                  sendComplete({
                    status: "success",
                  });
                })
                .on("error", (err) => {
                  console.error("ffmpeg error:", err.message);
                  sendError({
                    status: "error",
                    message:
                      "An error occurred while processing the audio and video files",
                  });
                });
              command.run();
            } else {
              console.error("Output or audio file not found");
              sendError({
                status: "error",
                message: "Output or audio file not found",
              });
            }
          });
        });
      } catch (error) {
        console.error(error);
        sendError({
          status: "error",
          message: "An error occurred while downloading the video",
        });
      }
    };
    socket.on("downloadVideo", downloadVideo);
  });
  res.end();
}


  


  I am also using socket.io to show the progress in the frontend, but for some reason I don't get the progress correctly. Is it possible to do that ?

  


• High Definition Compatible Digital (HDCD) decoder filter, using libhdcd

  26 août 2016, par Burt P

  High Definition Compatible Digital (HDCD) decoder filter, using libhdcd
  Signed-off-by : Burt P <pburt0@gmail.com>
  
  Signed-off-by : Diego Biurrun <diego@biurrun.de>
  
  Signed-off-by : Luca Barbato <lu_zero@gentoo.org>
  

  • [DBH] Changelog
  • [DBH] configure
  • [DBH] doc/filters.texi
  • [DBH] doc/general.texi
  • [DBH] libavfilter/Makefile
  • [DBH] libavfilter/af_hdcd.c
  • [DBH] libavfilter/allfilters.c
  • [DBH] libavfilter/version.h