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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (5279)

  • changing frame-rate for .mov

    5 juin 2013, par Ryan Saxe

    So I have a script in python that uses urllib to download a bunch of images and I then use ImageMagick to add labels to the images and then throw them into a MOV file.

    My issue is that the MOV file is going at 30 frames per second, and that is way too fast for me to be able to watch what is happening. I need something that is more like 5-10 frames per second.

    Is there a way to do this in ImageMagick, FFmpeg or any other easily accessible and cross platform package ?

    EDIT 1 : showing my ImageMagick

    convert -quality 100 *.png my_movie.mov

    I wasn't able to find it, but is there some line I add like -frameRate or something like that to allow me to choose the frame rate ? I can also use FFmpeg along with it so if anybody knows, that would be greay

  • I am using ffmpeg java library to convert captured screenshots to video. Video output is blurry

    2 octobre 2020, par dark prince

    I am using ffmpeg java library to convert captured screenshots to video. Video which is generated as output is blurry.

    


    I am using bit rate as 9000, frames per sec as 25 and video size as that of desktop screen size.

    


    Any suggestions on how to solve this issue.

    


    P.S. I cannot use ffmpeg.exe and command line due to certain restrictions and hence I am opting for ffmpeg java library.

    


    Any suggestions on the issue or suggestions on any better approach will be helpful.

    


        import java.awt.AWTException;&#xA;    import java.awt.Dimension;&#xA;    import java.awt.FlowLayout;&#xA;    import java.awt.Rectangle;&#xA;    import java.awt.Robot;&#xA;    import java.awt.Toolkit;&#xA;    import java.awt.event.ActionEvent;&#xA;    import java.awt.event.ActionListener;&#xA;    import java.awt.image.BufferedImage;&#xA;    import java.io.File;&#xA;    import java.io.IOException;&#xA;    import java.util.Date;&#xA;    &#xA;    import javax.imageio.ImageIO;&#xA;    import javax.swing.JButton;&#xA;    import javax.swing.JFrame;&#xA;    import javax.swing.JLabel;&#xA;    import javax.swing.JOptionPane;&#xA;    &#xA;    import org.bytedeco.javacpp.avcodec;&#xA;    import org.bytedeco.javacv.FFmpegFrameRecorder;&#xA;    import org.bytedeco.javacv.OpenCVFrameConverter;&#xA;    &#xA;    public class ScreenRecorder{&#xA;    &#xA;        public static boolean videoComplete=false;&#xA;        public static String inputImageDir="inputImgFolder"&#x2B;File.separator;&#xA;        public static String inputImgExt="png";&#xA;        public static String outputVideo="recording.mp4"; &#xA;        public static int counter=0;&#xA;        public static int imgProcessed=0;&#xA;        public static FFmpegFrameRecorder recorder=null;&#xA;        public static int videoWidth=1920;&#xA;        public static int videoHeight=1080;&#xA;        public static int videoFrameRate=3;&#xA;        public static int videoQuality=0; // 0 is the max quality&#xA;        public static int videoBitRate=9000;&#xA;        public static String videoFormat="mp4";&#xA;        public static int videoCodec=avcodec.AV_CODEC_ID_MPEG4;&#xA;        public static Thread t1=null;&#xA;        public static Thread t2=null;&#xA;        public static JFrame frame=null;&#xA;        public static boolean isRegionSelected=false;&#xA;        public static int c1=0;&#xA;        public static int c2=0;&#xA;        public static int c3=0;&#xA;        public static int c4=0;&#xA;        &#xA;        &#xA;        public static void main(String[] args) {&#xA;            &#xA;            try {&#xA;                if(getRecorder()==null)&#xA;                {&#xA;                    System.out.println("Cannot make recorder object, Exiting program");&#xA;                    System.exit(0);&#xA;                }&#xA;                if(getRobot()==null)&#xA;                {&#xA;                    System.out.println("Cannot make robot object, Exiting program");&#xA;                    System.exit(0);&#xA;                }&#xA;                File scanFolder=new File(inputImageDir);&#xA;                scanFolder.delete();&#xA;                scanFolder.mkdirs();&#xA;                &#xA;                createGUI();&#xA;            } catch (Exception e) {&#xA;                System.out.println("Exception in program "&#x2B;e.getMessage());&#xA;            }&#xA;        }&#xA;        &#xA;        public static void createGUI()&#xA;        {&#xA;            frame=new JFrame("Screen Recorder");&#xA;            JButton b1=new JButton("Select Region for Recording");&#xA;            JButton b2=new JButton("Start Recording");&#xA;            JButton b3=new JButton("Stop Recording");&#xA;            JLabel l1=new JLabel("<br />If you dont select a region then full screen recording <br /> will be made when you click on Start Recording");&#xA;            l1.setFont (l1.getFont ().deriveFont (20.0f));&#xA;            b1.addActionListener(new ActionListener() {&#xA;                @Override&#xA;                public void actionPerformed(ActionEvent e) {&#xA;                    try {&#xA;                        JOptionPane.showMessageDialog(frame, "A new window will open. Use your mouse to select the region you like to record");&#xA;                        new CropRegion().getImage();&#xA;                    } catch (Exception e1) {&#xA;                        // TODO Auto-generated catch block&#xA;                        System.out.println("Issue while trying to call the module to crop region");&#xA;                        e1.printStackTrace();&#xA;                    } &#xA;                }&#xA;            });&#xA;            b2.addActionListener(new ActionListener() {&#xA;                @Override&#xA;                public void actionPerformed(ActionEvent e) {&#xA;                    counter=0;&#xA;                    startRecording();&#xA;                }&#xA;            });&#xA;            b3.addActionListener(new ActionListener() {&#xA;                @Override&#xA;                public void actionPerformed(ActionEvent e) {&#xA;                    stopRecording();&#xA;                    System.out.print("Exiting...");&#xA;                    System.exit(0);&#xA;                }&#xA;            });&#xA;            &#xA;            frame.add(b1);&#xA;            frame.add(b2);&#xA;            frame.add(b3);&#xA;            frame.add(l1);&#xA;            frame.setLayout(new FlowLayout(0));&#xA;            frame.setVisible(true);&#xA;            frame.setSize(1000, 170);&#xA;            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);&#xA;        }&#xA;        &#xA;        public static void startRecording()&#xA;        {&#xA;            t1=new Thread()&#xA;            {&#xA;                public void run() {&#xA;                    try {&#xA;                        takeScreenshot(getRobot());&#xA;                    } catch (Exception e) {&#xA;                        JOptionPane.showMessageDialog(frame, "Cannot make robot object, Exiting program "&#x2B;e.getMessage());&#xA;                        System.out.println("Cannot make robot object, Exiting program "&#x2B;e.getMessage());&#xA;                        System.exit(0);&#xA;                    }&#xA;                }&#xA;            };&#xA;            &#xA;            t2=new Thread()&#xA;            {&#xA;                public void run() {&#xA;                    prepareVideo();&#xA;                }&#xA;            };&#xA;            &#xA;            t1.start();&#xA;            t2.start();&#xA;            System.out.println("Started recording at "&#x2B;new Date());&#xA;        }&#xA;        &#xA;        public static Robot getRobot() throws Exception&#xA;        {&#xA;            Robot r=null;&#xA;            try {&#xA;                r = new Robot();&#xA;                return r;&#xA;            } catch (AWTException e) {&#xA;                JOptionPane.showMessageDialog(frame, "Issue while initiating Robot object "&#x2B;e.getMessage());&#xA;                System.out.println("Issue while initiating Robot object "&#x2B;e.getMessage());&#xA;                throw new Exception("Issue while initiating Robot object");&#xA;            }&#xA;        }&#xA;        &#xA;        public static void takeScreenshot(Robot r)&#xA;        {&#xA;            Dimension size = Toolkit.getDefaultToolkit().getScreenSize();&#xA;            Rectangle rec=new Rectangle(size);&#xA;            if(isRegionSelected)&#xA;            {&#xA;                rec=new Rectangle(c1, c2, c3-c1, c4-c2);&#xA;            }&#xA;            while(!videoComplete)&#xA;            {&#xA;            counter&#x2B;&#x2B;;&#xA;            BufferedImage img = r.createScreenCapture(rec);&#xA;            try {&#xA;                ImageIO.write(img, inputImgExt, new File(inputImageDir&#x2B;counter&#x2B;"."&#x2B;inputImgExt));&#xA;            } catch (IOException e) {&#xA;                JOptionPane.showMessageDialog(frame, "Got an issue while writing the screenshot to disk "&#x2B;e.getMessage());&#xA;                System.out.println("Got an issue while writing the screenshot to disk "&#x2B;e.getMessage());&#xA;                counter--;&#xA;            }&#xA;            }&#xA;        }&#xA;        &#xA;        public static void prepareVideo()&#xA;        {&#xA;            File scanFolder=new File(inputImageDir);&#xA;            while(!videoComplete)&#xA;            {&#xA;                File[] inputFiles=scanFolder.listFiles();&#xA;                try {&#xA;                    getRobot().delay(500);&#xA;                } catch (Exception e) {&#xA;                }&#xA;                //for(int i=0;i/imgProcessed&#x2B;&#x2B;;&#xA;                    addImageToVideo(inputFiles[i].getAbsolutePath());&#xA;                    //String imgToAdd=scanFolder.getAbsolutePath()&#x2B;File.separator&#x2B;imgProcessed&#x2B;"."&#x2B;inputImgExt;&#xA;                    //addImageToVideo(imgToAdd);&#xA;                    //new File(imgToAdd).delete();&#xA;                    inputFiles[i].delete();&#xA;                }&#xA;            }&#xA;            &#xA;            File[] inputFiles=scanFolder.listFiles();&#xA;            for(int i=0;i/ maximum quality&#xA;             recorder.start();&#xA;             }&#xA;             catch(Exception e)&#xA;             {&#xA;                 JOptionPane.showMessageDialog(frame, "Exception while starting the recorder object "&#x2B;e.getMessage());&#xA;                 System.out.println("Exception while starting the recorder object "&#x2B;e.getMessage());&#xA;                 throw new Exception("Unable to start recorder");&#xA;             }&#xA;             return recorder;&#xA;        }&#xA;        &#xA;        public static OpenCVFrameConverter.ToIplImage getFrameConverter()&#xA;        {&#xA;            OpenCVFrameConverter.ToIplImage grabberConverter = new OpenCVFrameConverter.ToIplImage();&#xA;            return grabberConverter;&#xA;        }&#xA;        &#xA;        public static void addImageToVideo(String imgPath)&#xA;        {&#xA;            try {&#xA;                getRecorder().record(getFrameConverter().convert(cvLoadImage(imgPath)));&#xA;            } catch (Exception e) {&#xA;                JOptionPane.showMessageDialog(frame, "Exception while adding image to video "&#x2B;e.getMessage());&#xA;                System.out.println("Exception while adding image to video "&#x2B;e.getMessage());&#xA;            }&#xA;        }&#xA;        &#xA;        public static void stopRecording()&#xA;        {&#xA;            try {&#xA;                videoComplete=true;&#xA;                System.out.println("Stopping recording at "&#x2B;new Date());&#xA;                t1.join();&#xA;                System.out.println("Screenshot thread complete");&#xA;                t2.join();&#xA;                System.out.println("Video maker thread complete");&#xA;                getRecorder().stop();&#xA;                System.out.println("Recording has been saved successfully at "&#x2B;new File(outputVideo).getAbsolutePath());&#xA;                JOptionPane.showMessageDialog(frame, "Recording has been saved successfully at "&#x2B;new File(outputVideo).getAbsolutePath());&#xA;            } catch (Exception e) {&#xA;                System.out.println("Exception while stopping the recorder "&#x2B;e.getMessage());&#xA;            }&#xA;        }&#xA;    }&#xA;

    &#xA;

    Imagepanel.java

    &#xA;

    import java.awt.Dimension;&#xA;import java.awt.Graphics;&#xA;import java.awt.Image;&#xA;import javax.swing.ImageIcon;&#xA;import javax.swing.JPanel;&#xA;&#xA;class ImagePanel&#xA;  extends JPanel&#xA;{&#xA;  private Image img;&#xA;  &#xA;  public ImagePanel(String img)&#xA;  {&#xA;    this(new ImageIcon(img).getImage());&#xA;  }&#xA;  &#xA;  public ImagePanel(Image img)&#xA;  {&#xA;    this.img = img;&#xA;    Dimension size = new Dimension(img.getWidth(null), img.getHeight(null));&#xA;    &#xA;    setPreferredSize(size);&#xA;    setMinimumSize(size);&#xA;    setMaximumSize(size);&#xA;    setSize(size);&#xA;    setLayout(null);&#xA;  }&#xA;  &#xA;  public void paintComponent(Graphics g)&#xA;  {&#xA;    g.drawImage(this.img, 0, 0, null);&#xA;  }&#xA;}&#xA;

    &#xA;

    CropRegion.java

    &#xA;

    import java.awt.AWTException;&#xA;import java.awt.Dimension;&#xA;import java.awt.FlowLayout;&#xA;import java.awt.Graphics;&#xA;import java.awt.Rectangle;&#xA;import java.awt.Robot;&#xA;import java.awt.Toolkit;&#xA;import java.awt.event.MouseEvent;&#xA;import java.awt.event.MouseListener;&#xA;import java.awt.event.MouseMotionListener;&#xA;import java.awt.image.BufferedImage;&#xA;import java.io.IOException;&#xA;import javax.swing.JFrame;&#xA;import javax.swing.JLabel;&#xA;import javax.swing.JOptionPane;&#xA;&#xA;&#xA;public class CropRegion implements MouseListener,&#xA;        MouseMotionListener {&#xA;&#xA;    int drag_status = 0;&#xA;    int c1;&#xA;    int c2;&#xA;    int c3;&#xA;    int c4;&#xA;    JFrame frame=null;&#xA;    static int counter=0;&#xA;    JLabel background=null;&#xA;&#xA;    &#xA;    public void getImage() throws AWTException, IOException, InterruptedException {&#xA;        Dimension size = Toolkit.getDefaultToolkit().getScreenSize();&#xA;        Robot robot = new Robot();&#xA;        BufferedImage img = robot.createScreenCapture(new Rectangle(size));&#xA;        ImagePanel panel = new ImagePanel(img);&#xA;        frame=new JFrame();&#xA;        frame.add(panel);&#xA;        frame.setLocation(0, 0);&#xA;        frame.setSize(size);&#xA;        frame.setLayout(new FlowLayout());&#xA;        frame.setUndecorated(true);&#xA;        frame.setVisible(true);&#xA;        frame.addMouseListener(this);&#xA;        frame.addMouseMotionListener(this);&#xA;        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);&#xA;    }&#xA;&#xA;    public void draggedScreen() throws Exception {&#xA;        ScreenRecorder.c1=c1;&#xA;        ScreenRecorder.c2=c2;&#xA;        ScreenRecorder.c3=c3;&#xA;        ScreenRecorder.c4=c4;&#xA;        ScreenRecorder.isRegionSelected=true;&#xA;        JOptionPane.showMessageDialog(frame, "Region Selected.Please click on Start Recording button to record the selected region.");&#xA;        frame.dispose();&#xA;    }&#xA;&#xA;    public void mouseClicked(MouseEvent arg0) {&#xA;    }&#xA;&#xA;    public void mouseEntered(MouseEvent arg0) {&#xA;    }&#xA;&#xA;    public void mouseExited(MouseEvent arg0) {&#xA;    }&#xA;&#xA;    public void mousePressed(MouseEvent arg0) {&#xA;        paint();&#xA;        this.c1 = arg0.getX();&#xA;        this.c2 = arg0.getY();&#xA;    }&#xA;&#xA;    public void mouseReleased(MouseEvent arg0) {&#xA;        paint();&#xA;        if (this.drag_status == 1) {&#xA;            this.c3 = arg0.getX();&#xA;            this.c4 = arg0.getY();&#xA;            try {&#xA;                draggedScreen();&#xA;            } catch (Exception e) {&#xA;                e.printStackTrace();&#xA;            }&#xA;        }&#xA;    }&#xA;&#xA;    public void mouseDragged(MouseEvent arg0) {&#xA;        paint();&#xA;        this.drag_status = 1;&#xA;        this.c3 = arg0.getX();&#xA;        this.c4 = arg0.getY();&#xA;    }&#xA;&#xA;    public void mouseMoved(MouseEvent arg0) {&#xA;    }&#xA;&#xA;    public void paint() {&#xA;        Graphics g = frame.getGraphics();&#xA;        frame.repaint();&#xA;        int w = this.c1 - this.c3;&#xA;        int h = this.c2 - this.c4;&#xA;        w *= -1;&#xA;        h *= -1;&#xA;        if (w &lt; 0) {&#xA;            w *= -1;&#xA;        }&#xA;        g.drawRect(this.c1, this.c2, w, h);&#xA;    }&#xA;}&#xA;

    &#xA;

  • FFmpeg parse NALs from H264 bitstream

    25 août 2020, par sipwiz

    I'm able to use FFmpeg to encode a dummy frame into an H264 bitstream. What I'd additionally like to do is extract the individual NAL's from the bitstream.

    &#xA;

    From lots of hunting around it seems like using an AVParser and av_parser_parse2 is the way to do it ? I can see the functionality is there in h264_parser.c I just can't work out how to hook it up. Although maybe AVparser only deals in frames and AVBitStreamFilter or something else is needed ?

    &#xA;

    In my example below I am successfully encoding to H264 and transmitting the results over RTP. ffplay is able to receive and display the H264 RTP packets it receives so I'm confident the H264 encoding is working correctly.

    &#xA;

    #include <ctime>&#xA;#include <iomanip>&#xA;#include <iostream>&#xA;#include <string>&#xA;#include <sstream>&#xA;&#xA;#include "strutils.h"&#xA;&#xA;extern "C"&#xA;{&#xA;#include <libavcodec></libavcodec>avcodec.h>&#xA;#include <libavformat></libavformat>avformat.h>&#xA;#include <libavformat></libavformat>avio.h>&#xA;#include <libavutil></libavutil>imgutils.h>&#xA;#include <libswscale></libswscale>swscale.h>&#xA;#include <libavutil></libavutil>time.h>&#xA;}&#xA;&#xA;#define WIDTH 640&#xA;#define HEIGHT 480&#xA;#define FRAMES_PER_SECOND 30&#xA;#define RTP_OUTPUT_FORMAT "rtp"&#xA;#define RTP_URL "rtp://127.0.0.1:5024"&#xA;#define ERROR_LEN 128&#xA;#define codecID AVCodecID::AV_CODEC_ID_H264 // AVCodecID::AV_CODEC_ID_VP8;&#xA;&#xA;SwsContext* _swsContext;&#xA;AVCodec* _codec;&#xA;AVCodecContext* _codecCtx;&#xA;AVFormatContext* _formatContext;&#xA;AVStream* _rtpOutStream;&#xA;char _errorLog[ERROR_LEN];&#xA;AVCodecParserContext* _codecParserCtx;&#xA;&#xA;int main()&#xA;{&#xA;  std::cout &lt;&lt; "FFmpeg Encoder and RTP Stream Test" &lt;&lt; std::endl;&#xA;&#xA;  av_log_set_level(AV_LOG_DEBUG);&#xA;&#xA;  // Initialise codec context.&#xA;  _codec = avcodec_find_encoder(codecID);&#xA;  if (_codec == NULL) {&#xA;    throw std::runtime_error("Could not find codec for ID " &#x2B; std::to_string(codecID) &#x2B; ".");&#xA;  }&#xA;&#xA;  _codecCtx = avcodec_alloc_context3(_codec);&#xA;  if (!_codecCtx) {&#xA;    std::cerr &lt;&lt; "Failed to initialise codec context." &lt;&lt; std::endl;;&#xA;  }&#xA;&#xA;  _codecCtx->width = WIDTH;&#xA;  _codecCtx->height = HEIGHT;&#xA;  //_codecCtx->bit_rate = 500000;&#xA;  _codecCtx->time_base.den = FRAMES_PER_SECOND;&#xA;  _codecCtx->time_base.num = 1;&#xA;  //_codecCtx->gop_size = 10;&#xA;  //_codecCtx->max_b_frames = 1;&#xA;  _codecCtx->pix_fmt = AVPixelFormat::AV_PIX_FMT_YUV420P;&#xA;&#xA;  int res = avcodec_open2(_codecCtx, _codec, NULL);&#xA;  if (res &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to open codec: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, res) &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  // Set up a parser to extract NAL&#x27;s from the H264 bit stream.&#xA;  // Note this is not needed for sending the RTP (I need to separate the NALs for another reason).&#xA;  _codecParserCtx = av_parser_init(codecID);&#xA;  if (!_codecParserCtx) {&#xA;    std::cerr &lt;&lt; "Failed to initialise codec parser." &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  // Initialise RTP output stream.&#xA;  AVOutputFormat* fmt = av_guess_format(RTP_OUTPUT_FORMAT, NULL, NULL);&#xA;  if (!fmt) {&#xA;    std::cerr &lt;&lt; "Failed to guess output format for " &lt;&lt; RTP_OUTPUT_FORMAT &lt;&lt; "." &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  res = avformat_alloc_output_context2(&amp;_formatContext, fmt, fmt->name, RTP_URL);&#xA;  if (res &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to allocate output context: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, res) &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  _rtpOutStream = avformat_new_stream(_formatContext, _codec);&#xA;  if (!_rtpOutStream) {&#xA;    std::cerr &lt;&lt; "Failed to allocate output stream." &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  res = avio_open(&amp;_formatContext->pb, _formatContext->url, AVIO_FLAG_WRITE);&#xA;  if (res &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to open RTP output context for writing: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, res) &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  res = avcodec_parameters_from_context(_rtpOutStream->codecpar, _codecCtx);&#xA;  if (res &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to copy codec parameters to stream: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, res) &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  res = avformat_write_header(_formatContext, NULL);&#xA;  if (res &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to write output header: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, res) &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  av_dump_format(_formatContext, 0, RTP_URL, 1);&#xA;&#xA;  // Set a dummy frame with a YUV420 image.&#xA;  AVFrame* frame = av_frame_alloc();&#xA;  frame->format = AVPixelFormat::AV_PIX_FMT_YUV420P;&#xA;  frame->width = WIDTH;&#xA;  frame->height = HEIGHT;&#xA;  frame->pts = 0;&#xA;&#xA;  res = av_frame_get_buffer(frame, 0);&#xA;  if (res &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed on av_frame_get_buffer: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, res) &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  res = av_frame_make_writable(frame);&#xA;  if (res &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed on av_frame_make_writable: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, res) &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  for (int y = 0; y &lt; HEIGHT; y&#x2B;&#x2B;) {&#xA;    for (int x = 0; x &lt; WIDTH; x&#x2B;&#x2B;) {&#xA;      frame->data[0][y * frame->linesize[0] &#x2B; x] = x &#x2B; y &#x2B; 1 * 3;&#xA;    }&#xA;  }&#xA;&#xA;  for (int y = 0; y &lt; HEIGHT / 2; y&#x2B;&#x2B;) {&#xA;    for (int x = 0; x &lt; WIDTH / 2; x&#x2B;&#x2B;) {&#xA;      frame->data[1][y * frame->linesize[1] &#x2B; x] = 128 &#x2B; y &#x2B; 2;&#xA;      frame->data[2][y * frame->linesize[2] &#x2B; x] = 64 &#x2B; y &#x2B; 5;&#xA;    }&#xA;  }&#xA;&#xA;  std::cout &lt;&lt; "press any key to start the stream..." &lt;&lt; std::endl;&#xA;  getchar();&#xA;&#xA;  // Start the loop to encode the static dummy frame and output on the RTP stream.&#xA;  AVPacket* pkt = av_packet_alloc();&#xA;  uint8_t* data{ nullptr };&#xA;  int dataSize;&#xA;&#xA;  while (true) {&#xA;    int sendres = avcodec_send_frame(_codecCtx, frame);&#xA;    if (sendres != 0) {&#xA;      std::cerr &lt;&lt; "avcodec_send_frame error: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, sendres) &lt;&lt; std::endl;&#xA;    }&#xA;&#xA;    // Read encoded packets.&#xA;    int ret = 0;&#xA;    while (ret >= 0) {&#xA;&#xA;      ret = avcodec_receive_packet(_codecCtx, pkt);&#xA;&#xA;      if (ret == AVERROR(EAGAIN)) {&#xA;        // Encoder needs more data.&#xA;        break;&#xA;      }&#xA;      else if (ret &lt; 0) {&#xA;        std::cerr &lt;&lt; "Failed to encode frame: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, sendres) &lt;&lt; std::endl;&#xA;        break;&#xA;      }&#xA;      else {&#xA;        std::cout &lt;&lt; "Encoded packet pts " &lt;&lt; pkt->pts &lt;&lt; ", size " &lt;&lt; pkt->size &lt;&lt; "." &lt;&lt; std::endl;&#xA;        std::cout &lt;&lt; toHex(pkt->data, pkt->data &#x2B; pkt->size) &lt;&lt; std::endl;&#xA;&#xA;        int pktOffset = 0;&#xA;&#xA;        // TODO: Find a way to separate the NALs from the Annex B H264 byte stream in the AVPacket data.&#xA;        //AVBitStreamFilter &#xA;        &#xA;        while (pkt->size > pktOffset) {&#xA;          int bytesRead = av_parser_parse2(_codecParserCtx, _codecCtx, &amp;data, &amp;dataSize, pkt->data &#x2B; pktOffset, pkt->size - pktOffset, AV_NOPTS_VALUE, AV_NOPTS_VALUE, 0);&#xA;&#xA;          if (bytesRead == 0) {&#xA;            std::cout &lt;&lt; "Failed to parse data from packet." &lt;&lt; std::endl;&#xA;            break;&#xA;          }&#xA;          else if (bytesRead &lt; 0) {&#xA;            std::cerr &lt;&lt; "av_parser_parse2 error: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, bytesRead) &lt;&lt; std::endl;&#xA;            break;&#xA;          }&#xA;          else {&#xA;            std::cout &lt;&lt; "Codec parser bytes read " &lt;&lt; bytesRead &lt;&lt; "." &lt;&lt; std::endl;&#xA;            pktOffset &#x2B;= bytesRead;&#xA;          }&#xA;        }&#xA;      }&#xA;&#xA;      // Write the encoded packet to the RTP stream.&#xA;      int sendRes = av_write_frame(_formatContext, pkt);&#xA;      if (sendRes &lt; 0) {&#xA;        std::cerr &lt;&lt; "Failed to write frame to output stream: " &lt;&lt; av_make_error_string(_errorLog, ERROR_LEN, sendres) &lt;&lt; std::endl;&#xA;        break;&#xA;      }&#xA;&#xA;      std::cout &lt;&lt; "press any key to continue..." &lt;&lt; std::endl;&#xA;      getchar();&#xA;    }&#xA;&#xA;    av_usleep(1000000 / FRAMES_PER_SECOND);&#xA;&#xA;    frame->pts&#x2B;&#x2B;;&#xA;  }&#xA;&#xA;  av_packet_free(&amp;pkt);&#xA;  av_frame_free(&amp;frame);&#xA;  avcodec_close(_codecCtx);&#xA;  avcodec_free_context(&amp;_codecCtx);&#xA;  avformat_free_context(_formatContext);&#xA;&#xA;  return 0;&#xA;}&#xA;</sstream></string></iostream></iomanip></ctime>

    &#xA;

    The output from the first available frame that contains 4 separate NALs is below (apologies for the size). Since the H264 byte stream is using an Annex B format the NALs can be easily extracted, the delimiter being either 00000001 or 000001. If possible I'd rather use the proper FFmpeg way of parsing instead of re-inventing the wheel.

    &#xA;

    FFmpegCppEncodingTest\x64\Debug>FFmpegCppEncodingTest.exe&#xA;FFmpeg Encoder and RTP Stream Test&#xA;[libx264 @ 00000252de7e2180] using mv_range_thread = 24&#xA;[libx264 @ 00000252de7e2180] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2&#xA;[libx264 @ 00000252de7e2180] profile High, level 3.0, 4:2:0, 8-bit&#xA;[rtp @ 00000252df9d4c80] No default whitelist set&#xA;[udp @ 00000252df9d46c0] No default whitelist set&#xA;[udp @ 00000252df501440] No default whitelist set&#xA;Output #0, rtp, to &#x27;rtp://127.0.0.1:5024&#x27;:&#xA;  Metadata:&#xA;    encoder         : Lavf58.49.100&#xA;    Stream #0:0, 0, 1/90000: Video: h264 (libx264), 1 reference frame, yuv420p, 640x480 (0x0), 0/1, q=-1--1, 90k tbn&#xA;press any key to start the stream...&#xA;&#xA;[libx264 @ 00000252de7e2180] frame=   0 QP=23.20 NAL=3 Slice:I Poc:0   I:1200 P:0    SKIP:0    size=8262 bytes&#xA;Encoded packet pts 0, size 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&#xA;Codec parser bytes read 8262, data size 0.&#xA;nal: .&#xA;[rtp @ 00000252df4ef8c0] Sending NAL 7 of len 24 M=0&#xA;[rtp @ 00000252df4ef8c0] Sending NAL 8 of len 6 M=0&#xA;[rtp @ 00000252df4ef8c0] Sending NAL 6 of len 673 M=0&#xA;[rtp @ 00000252df4ef8c0] Sending NAL 5 of len 7545 M=1&#xA;[rtp @ 00000252df4ef8c0] NAL size 7545 > 1460&#xA;press any key to continue...&#xA;&#xA;[libx264 @ 00000252de7e2180] frame=   1 QP=23.21 NAL=2 Slice:P Poc:8   I:52   P:101  SKIP:1047 size=482 bytes&#xA;Encoded packet pts 4, size 482.&#xA;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&#xA;Failed to parse data from packet.&#xA;[rtp @ 00000252df4ef8c0] Sending NAL 1 of len 478 M=1&#xA;press any key to continue...&#xA;&#xA;[libx264 @ 00000252de7e2180] frame=   2 QP=26.00 NAL=2 Slice:B Poc:4   I:0    P:102  SKIP:1098 size=91 bytes&#xA;Encoded packet pts 2, size 91.&#xA;00000001419e42789bff42138e8cab7ce34f0aaf2f3fb0c41aac77dad7803c8a422c3668a09d337695ffad27dd3d2a1499cf8812c8873f3308741b44759e97059270a4f8678646dfa543ae4da163dacc33a85b2694e7e3c052a861&#xA;Codec parser bytes read 91, data size 0.&#xA;nal: .&#xA;[rtp @ 00000252df4ef8c0] Sending NAL 1 of len 87 M=1&#xA;press any key to continue...&#xA;&#xA;[libx264 @ 00000252de7e2180] frame=   3 QP=28.00 NAL=0 Slice:B Poc:2   I:0    P:74   SKIP:1126 size=82 bytes&#xA;Encoded packet pts 1, size 82.&#xA;00000001019e6174457f4a9778ce66461da66e887d240ad470ec49fe325654c49141af33481787c812ab8d6e27331c0203d4fe099ef254623da56868fdac9a5e5f4e08ec8ef08390748186902972dbe37080&#xA;Failed to parse data from packet.&#xA;[rtp @ 00000252df4ef8c0] Sending NAL 1 of len 78 M=1&#xA;press any key to continue...&#xA;

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