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  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • 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 (...)

  • L’agrémenter visuellement

    10 avril 2011

    MediaSPIP est basé sur un système de thèmes et de squelettes. Les squelettes définissent le placement des informations dans la page, définissant un usage spécifique de la plateforme, et les thèmes l’habillage graphique général.
    Chacun peut proposer un nouveau thème graphique ou un squelette et le mettre à disposition de la communauté.

Sur d’autres sites (6659)

  • Video generation and ffmpeg and locally stored images [closed]

    3 juillet, par Rahul Patil

    I am facing issue in ffmpeg while running the below code

    


    I'm working on a Flask application that generates a video by combining a sequence of images from a folder and a synthesized audio track using Bark (suno/bark-small). The idea is to use FFmpeg to stitch the images into a video, apply padding and scaling, and then merge it with the generated audio. I'm triggering the /generate-video endpoint with a simple curl POST request, passing a script that gets converted to audio. While the image and audio processing work as expected, FFmpeg fails during execution, and the server returns a 500 error. I've added error logging to capture FFmpeg’s stderr output, which suggests something is going wrong either with the generated input.txt file or the format of the inputs passed to FFmpeg. I'm not sure if the issue is related to file paths, the concat demuxer formatting, or possibly audio/video duration mismatch. Any insights on how to debug or correct the FFmpeg command would be appreciated.

    


    the curl request is

    


    curl -X POST http://localhost:5000/generate-video \
     -H "Content-Type: application/json" \
     -d '{"script": "Hello, this is a test script to generate a video."}' \
     --output output_video.mp4


    


    import os
import uuid
import subprocess
from pathlib import Path
import numpy as np
from flask import Flask, request, jsonify, send_file
from transformers import AutoProcessor, AutoModelForTextToWaveform
from scipy.io.wavfile import write as write_wav
import torch

# ========== CONFIG ==========
IMAGE_FOLDER = "./images"
OUTPUT_FOLDER = "./output"
RESOLUTION = (1280, 720)
IMAGE_DURATION = 3  # seconds per image
SAMPLE_RATE = 24000

app = Flask(__name__)
os.makedirs(OUTPUT_FOLDER, exist_ok=True)

# Load Bark-small model and processor
device = "cuda" if torch.cuda.is_available() else "cpu"
processor = AutoProcessor.from_pretrained("suno/bark-small")
model = AutoModelForTextToWaveform.from_pretrained("suno/bark-small").to(device)


# ========== UTILS ==========
def run_ffmpeg(cmd):
    result = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    if result.returncode != 0:
        print("[FFmpeg ERROR]\n", result.stderr.decode())
        raise RuntimeError("FFmpeg failed.")
    else:
        print("[FFmpeg] Success.")


def find_images(folder):
    return sorted([
        f for f in Path(folder).glob("*")
        if f.suffix.lower() in {".jpg", ".jpeg", ".png"}
    ])


def create_ffmpeg_input_list(images, list_file_path):
    with open(list_file_path, "w") as f:
        for img in images:
            f.write(f"file '{img.resolve()}'\n")
            f.write(f"duration {IMAGE_DURATION}\n")
        # Repeat last image to avoid cutoff
        f.write(f"file '{images[-1].resolve()}'\n")


# ========== FLASK ROUTE ==========
@app.route('/generate-video', methods=['POST'])
def generate_video():
    data = request.get_json()
    script = data.get("script")
    if not script:
        return jsonify({"error": "No script provided"}), 400

    images = find_images(IMAGE_FOLDER)
    if not images:
        return jsonify({"error": "No images found in ./images"}), 400

    # Generate audio
    print("[1/3] Generating audio with Bark...")
    inputs = processor(script, return_tensors="pt").to(device)
    with torch.no_grad():
        audio_values = model.generate(**inputs)

    audio_np = audio_values[0].cpu().numpy().squeeze()
    audio_np = np.clip(audio_np, -1.0, 1.0)
    audio_int16 = (audio_np * 32767).astype(np.int16)

    audio_path = os.path.join(OUTPUT_FOLDER, f"{uuid.uuid4()}.wav")
    write_wav(audio_path, SAMPLE_RATE, audio_int16)

    # Create FFmpeg concat file
    print("[2/3] Preparing image list for FFmpeg...")
    list_file = os.path.join(OUTPUT_FOLDER, "input.txt")
    create_ffmpeg_input_list(images, list_file)

    # Final video path
    final_video_path = os.path.join(OUTPUT_FOLDER, f"{uuid.uuid4()}.mp4")

    # Run FFmpeg
    print("[3/3] Running FFmpeg to create video...")
    ffmpeg_cmd = [
        "ffmpeg", "-y",
        "-f", "concat", "-safe", "0", "-i", list_file,
        "-i", audio_path,
        "-vf", f"scale={RESOLUTION[0]}:{RESOLUTION[1]}:force_original_aspect_ratio=decrease,"
               f"pad={RESOLUTION[0]}:{RESOLUTION[1]}:(ow-iw)/2:(oh-ih)/2:color=black",
        "-c:v", "libx264", "-pix_fmt", "yuv420p",
        "-c:a", "aac", "-b:a", "192k",
        "-shortest", "-movflags", "+faststart",
        final_video_path
    ]

    try:
        run_ffmpeg(ffmpeg_cmd)
    except RuntimeError:
        return jsonify({"error": "FFmpeg failed. Check server logs."}), 500

    return send_file(final_video_path, as_attachment=True)


# ========== RUN APP ==========
if __name__ == '__main__':
    app.run(debug=True)


    


  • How to write a video stream to a server ?

    14 août, par The Mask

    Recently been playing with FFmpeg and it's powerful abilities. Working on a cool project where I'm trying to create a live video stream using FFmpeg. The client (reactJs) and server (nodeJS) are connected via web-socket. The client sends the byte packets to server and the server then spawns an FFmpeg process and serve it to an nginx server.

    


    Client(live-stream.js) :

    


    const stream = await navigator.mediaDevices.getUserMedia({
    video: true,
    audio: true,
  });
  videoRef.current.srcObject = stream;

  const ingestUrl = `ws://localhost:8081/ws`
  const socket = new WebSocket(ingestUrl);
  socket.binaryType = "arraybuffer";
  socket.onopen = () => {
    console.log("✅ WebSocket connection established");
    socket.send(JSON.stringify({ type: "start", stream_key: streamKey }));
    mediaRecorderRef.current.start(500);
  };
  socketRef.current = socket;

  socket.onerror = (error) => {
    console.error("❌ WebSocket error:", error);
  };

  mediaRecorderRef.current = new MediaRecorder(stream, {
    mimeType: "video/webm;codecs=vp8,opus",
    videoBitsPerSecond: 1000000,
    audioBitsPerSecond: 128000
  });
  mediaRecorderRef.current.ondataavailable = (event) => {
    if (event.data.size > 0 && socket.readyState === WebSocket.OPEN) {
      event.data.arrayBuffer().then((buffer) => socket.send(buffer));
    }
  };


    


    Server(index.js) :

    


    const http = require('http');
const WebSocket = require('ws');
const { spawn } = require('child_process');
const fs = require('fs');


const server = new WebSocket.Server({ server:wss, path:'/ws'});

const startFFmpeg = (stream_key) => {
  return ffmpeg = spawn("ffmpeg", [
    "-re",
    "-f", "matroska",
    "-i", "pipe:0",
    "-map", "0:v:0",
    "-map", "0:a:0",
    "-c:v", "libx264",
    "-c:a", "aac ",
    "-b:v", "6000k",
    "-maxrate", "6000k ",
    "-bufsize", "6000k ",
    "-pix_fmt", "yuv420p ",
    "-f", "flv",
    `rtmp://localhost/live/${stream_key}`,
  ]);
}
server.on('connection', (ws) => {
  console.log('📡 New WebSocket connection');

  let ffmpeg = null;
  let buffer = Buffer.alloc(0);
  let streamStarted = false;

  ws.on('message', (msg, isBinary) => {
    if (!isBinary) {
      const parsed = JSON.parse(msg);
      if (parsed.type === "start") {
        const { stream_key } = parsed;
        console.log(`🔑 Stream key: ${stream_key}`);
        console.log(`🎥 Starting ingest for stream key: ${stream_key}`);

        ffmpeg = startFFmpeg(stream_key)
        ffmpeg.stdin.on("error", (e) => {
          console.error("FFmpeg stdin error:", e.message);
        });

        ffmpeg.stderr.on("data", (data) => {
          console.log(`FFmpeg Data: ${data}`);
        });

        ffmpeg.on("close", (code) => {
          console.log(`FFmpeg exited with code ${code}`);
        });

        ffmpeg.on("exit", (code, signal) => {
          console.log(`FFmpeg exited with code: ${code}, signal: ${signal}`);
          if (signal === 'SIGSEGV') {
            console.log('🔄 FFmpeg segfaulted, attempting restart...');
            setTimeout(() => {
              if (ws.readyState === WebSocket.OPEN) {
                startFFmpeg(stream_key);
              }
            }, 1000);
          }
        });

        streamStarted = true;
      }
    } else if (isBinary && ffmpeg && ffmpeg.stdin.writable) {
        try {
        // Convert to Buffer if it's an ArrayBuffer
        let data;
        if (msg instanceof ArrayBuffer) {
          data = Buffer.from(msg);
        } else {
          data = Buffer.from(msg);
        }

        // Buffer the data
        buffer = Buffer.concat([buffer, data]);
        
        // Write in larger chunks to reduce overhead
        if (buffer.length >= 8192) { // 8KB threshold
          console.log(`📥 Writing ${buffer.length} bytes to FFmpeg`);
          
          if (ffmpeg.stdin.write(buffer)) {
            buffer = Buffer.alloc(0);
          } else {
            // Handle backpressure
            ffmpeg.stdin.once('drain', () => {
              buffer = Buffer.alloc(0);
              ffmpeg.stdin.setMaxListeners(20); // or a safe upper bound
            });
          }
        }
      } catch (e) {
        console.error("FFmpeg write error:", e);
      }
    }
  });
  
  ws.on('close', () => {
    console.log('❌ WebSocket closed');
    streamStarted = false;

    if (ffmpeg){     // Write any remaining buffer
      if (buffer.length > 0 && ffmpeg.stdin.writable) {
        console.log(`📥 Writing final ${buffer.length} bytes to FFmpeg`);
        ffmpeg.stdin.write(buffer);
      }
            
      // Gracefully close FFmpeg
      if (ffmpeg.stdin.writable) {
        ffmpeg.stdin.end();
      }
      
      setTimeout(() => {
        if (ffmpeg && !ffmpeg.killed) {
          ffmpeg.kill('SIGTERM');
          setTimeout(() => {
            if (ffmpeg && !ffmpeg.killed) {
              ffmpeg.kill('SIGKILL');
            }
          }, 5000);
        }
      }, 1000);
    }
  });
});

wss.listen(8081, "localhost", () => {
  console.log("🛰️ Server listening on http://localhost:8081/ws");
});


    


    The problem statment :
Been facing error like pixels drops in the video, bad quality. FFmpeg is crashing with error :

    


    FFmpeg Data: Input #0, matroska,webm, from 'pipe:0':

FFmpeg Data:   Metadata:
    encoder         : Chrome
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)

FFmpeg Data:   Stream #0:1(eng): Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 
FFmpeg Data: 1k tbr, 1k tbn (default)
    Metadata:
      alpha_mode      : 1

FFmpeg Data: Unknown pixel format requested: yuv420p .

FFmpeg stdin error: write EPIPE
FFmpeg exited with code: 1, signal: null
FFmpeg exited with code 1


    


  • RTP Stream shows gray background then crashes

    5 novembre 2019, par Carlo

    I’m trying to play some RTP stream in python using opencv and an SDP file. I’m getting a gray window with some distorted images at the top(see attached image) and after a few seconds the program would crash and the gray window would close.

    output

    I also tried to capture the packets of the stream via wireshark and extract the video information using media info.

    Note:The extracted video was playing smoothly.

    capture

    Media information using GSpot

    another

    The SDP file contains :

    v=0
    
m=video 5000 RTP/AVP 103
    
c=IN IP4 239.194.115.71
    
a=rtpmap:103 H264/90000

    These are the error codes shown in the terminal :

    [h264 @ 0000029d3c8d85c0] non-existing PPS 2 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] no frame!
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] no frame!
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] no frame!
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] no frame!
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c8d85c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c8d85c0] decode_slice_header error
    
[h264 @ 0000029d3c8d85c0] no frame!
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c8d85c0] top block unavailable for requested intra mode
    
[h264 @ 0000029d3c8d85c0] error while decoding MB 2 0, bytestream 353
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] error while decoding MB 58 2, bytestream -11
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c8d85c0] error while decoding MB 13 3, bytestream -9
    
[h264 @ 0000029d3393e540] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3393e9c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3393e9c0] decode_slice_header error
    
[h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c952300] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c952300] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c952300] decode_slice_header error
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3cf7c940] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3cf7c940] non-existing PPS 0 referenced
    
[h264 @ 0000029d3cf7c940] decode_slice_header error
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3393e540] non-existing PPS 0 referenced
    
[h264 @ 0000029d3393e540] decode_slice_header error
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e9c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3393e9c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3393e9c0] decode_slice_header error
    
[h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c952300] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c952300] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c952300] decode_slice_header error
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3cf7c940] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3cf7c940] non-existing PPS 0 referenced
    
[h264 @ 0000029d3cf7c940] decode_slice_header error
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3393e540] non-existing PPS 0 referenced
    
[h264 @ 0000029d3393e540] decode_slice_header error
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3393e9c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3393e9c0] decode_slice_header error
    
[h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c952300] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c952300] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c952300] decode_slice_header error
    
[h264 @ 0000029d3c952300] no frame!
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3cf7c940] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3cf7c940] non-existing PPS 0 referenced
    
[h264 @ 0000029d3cf7c940] decode_slice_header error
    
[h264 @ 0000029d3cf7c940] no frame!
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3393e540] non-existing PPS 0 referenced
    
[h264 @ 0000029d3393e540] decode_slice_header error
    
[h264 @ 0000029d3393e540] no frame!
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3393e9c0] non-existing PPS 0 referenced
    
[h264 @ 0000029d3393e9c0] decode_slice_header error
    
[h264 @ 0000029d3393e9c0] no frame!
    
[h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c952300] SPS unavailable in decode_picture_timing
    
[h264 @ 0000029d3c952300] non-existing PPS 0 referenced
    
[h264 @ 0000029d3c952300] decode_slice_header error
    
[h264 @ 0000029d3c952300] no frame!
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3cf7c940] top block unavailable for requested intra mode
    
[h264 @ 0000029d3cf7c940] error while decoding MB 2 0, bytestream 353
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e9c0] error while decoding MB 58 2, bytestream -11
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e9c0] error while decoding MB 13 3, bytestream -9
    
[h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c952300] cabac decode of qscale diff failed at 59 2
    
[h264 @ 0000029d3c952300] error while decoding MB 59 2, bytestream 217
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3cf7c940] cabac decode of qscale diff failed at 70 1
    
[h264 @ 0000029d3cf7c940] error while decoding MB 70 1, bytestream 337
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] error while decoding MB 71 2, bytestream -17
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] error while decoding MB 33 2, bytestream -11
    
[h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c952300] top block unavailable for requested intra mode
    
[h264 @ 0000029d3c952300] error while decoding MB 2 0, bytestream 371
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 11, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3393e540] cabac decode of qscale diff failed at 118 1
    
[h264 @ 0000029d3393e540] error while decoding MB 118 1, bytestream 379
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3c952300] cabac decode of qscale diff failed at 70 1
    
[h264 @ 0000029d3c952300] error while decoding MB 70 1, bytestream 377
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3cf7c940] Invalid NAL unit 12, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e540] Invalid NAL unit 10, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] Invalid NAL unit 0, skipping.
    
[h264 @ 0000029d3393e9c0] top block unavailable for requested intra mode -1
    
[h264 @ 0000029d3393e9c0] error while decoding MB 4 0, bytestream 291
    
[h264 @ 0000029d3c952300] Invalid NAL unit 12, skipping.
    
[h264 @ 00
    
Process finished with exit code -1

    Python code :

    vcap = cv2.VideoCapture('test.sdp')
    

    
while (1):
    
    ret, frame = vcap.read()
    
    cv2.imshow('VIDEO', frame)
    
    cv2.waitKey(1)

    wireshark dump :

    https://drive.google.com/open?id=1zppjXVgEcL8Ws-xP3e1J7NJF1UGdPzMA

    Am I using a wrong codec code or clock-rate inside the SDP file for it to display the stream properly ?

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