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• Revision 8abd92f12f : Remove mode_skip_start and mask code for sub 8x8 This code serves no purpose in

  4 octobre 2013, par Paul Wilkins

  Changed Paths :
   Modify /vp9/encoder/vp9_rdopt.c

  
  
  Remove mode_skip_start and mask code for sub 8x8

  This code serves no purpose in the re-factored sub 8x8 code.

  Change-Id : I5364986224d1a28b71bcb046ec8557a3d14aaa47

• I can't get my backend working with frontend in production but in local environment [duplicate]

  3 août 2024, par YouareGrouseChris

  This is the frontend code :

  


  import React, { useState } from &#x27;react&#x27;;&#xA;import axios from &#x27;axios&#x27;;&#xA;import fileDownload from &#x27;js-file-download&#x27;;&#xA;&#xA;function HomePage() {&#xA;    const [url, setUrl] = useState(&#x27;&#x27;);&#xA;    const [filename, setFilename] = useState(&#x27;&#x27;);&#xA;&#xA;    const handleSubmit = async (e) => {&#xA;        e.preventDefault();&#xA;        try {&#xA;            const response = await axios.post(&#x27;https://api-lnp5.onrender.com/api/download&#x27;, { url, filename }, { responseType: &#x27;blob&#x27; });&#xA;            fileDownload(response.data, filename);&#xA;            console.log(response.data);  // handle the response as needed&#xA;        } catch (error) {&#xA;            console.error(error);&#xA;        }&#xA;    };&#xA;&#xA;    return (&#xA;        <div classname="flex flex-col items-center justify-center h-screen overflow-hidden">&#xA;            <h1 classname="text-3xl font-bold mb-6">Download Reddit video!!!</h1>&#xA;            <form classname="flex flex-col items-center">&#xA;                <label classname="mb-4">&#xA;                    <div classname="text-lg mb-4 inline-block">Video URL:</div>&#xA;                    <div>&#xA;                        <input type="text" value="{url}" />> setUrl(e.target.value)} required &#xA;                            className="border px-3 py-2 rounded focus:outline-none focus:ring focus:border-blue-300 w-96"/>&#xA;                    </div>&#xA;                </label>&#xA;                <label classname="mb-4">&#xA;                    <div classname="text-lg mb-4 inline-block">Filename:</div>&#xA;                    <div>&#xA;                        <input type="text" value="{filename}" />> setFilename(e.target.value)} required &#xA;                            className="border px-3 py-2 rounded focus:outline-none focus:ring focus:border-blue-300 w-96"/>&#xA;                    </div>&#xA;                </label>&#xA;                <button type="submit" classname="bg-blue-500 text-white px-4 py-2 rounded hover:bg-blue-600">Download</button>&#xA;            </form>&#xA;        </div>&#xA;    );&#xA;}&#xA;&#xA;export default HomePage;&#xA;

  


  This is the backend code using python fastapi :

  


  from fastapi import FastAPI, HTTPException

from fastapi.responses import FileResponse
from fastapi.middleware.cors import CORSMiddleware
from pydantic import BaseModel
import requests
import json
import subprocess
import os

app = FastAPI()

origins = [
    "https://videodownload-frontend.onrender.com",  # replace with the origin of your frontend
]

app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

class Video(BaseModel):
    url: str
    filename: str


def get_unique_filename(filename):
    counter = 1
    base_filename, extension = os.path.splitext(filename)
    unique_filename = filename

    while os.path.isfile(unique_filename):
        unique_filename = f"{base_filename}({counter}){extension}"
        counter += 1

    return unique_filename

@app.post("/api/download")
async def download_video(video: Video):
    url = video.url
    filename = get_unique_filename(video.filename)

    url += '.json'
    response = requests.get(url, headers={'User-agent': 'Mozilla/5.0'})

    if response.status_code != 200:
        raise HTTPException(status_code=404, detail="Video not found")

    json_response = json.loads(response.text)
    video_url = json_response[0]["data"]["children"][0]["data"]["secure_media"]["reddit_video"]["fallback_url"]
    audio_url = video_url.rsplit('/', 1)[0] + '/DASH_audio.mp4'

    video_response = requests.get(video_url, stream=True)
    audio_response = requests.get(audio_url, stream=True)

    with open('video_temp.mp4', 'wb') as f:
        for chunk in video_response.iter_content(chunk_size=1024 * 1024):
            if chunk:
                f.write(chunk)
    if audio_response.status_code == 200:
        with open('audio_temp.mp4', 'wb') as f:
            for chunk in audio_response.iter_content(chunk_size=1024 * 1024):
                if chunk:
                    f.write(chunk)
        subprocess.run(['ffmpeg', '-i', 'video_temp.mp4', '-i', 'audio_temp.mp4', '-c', 'copy', filename])
    else:
        os.rename('video_temp.mp4', filename)

    return FileResponse(filename, media_type='application/octet-stream', filename=filename)


  


  I deployed the fastapi by docker to Render. When I start the frontend development server, I could communicate with the backend without problems. But when I deployed both frontend and backend to Render, it shows always the CORS policy

  


  

  


  Why is it ? if I could communicate with backend when starting local development server, it should be not related to backend.

  


  This is URL to my frontend : https://videodownload-frontend.onrender.com/

  


  Thank you !

  


  I tried reconnect and restart the web service, also I tried to add CORS in fastapi. The api works fine with local server opened up. What should I do to debug ? thank you

  


• I am streaming mp3 music via ffmpeg to a local rtmp server then converting to hls, but am having difficulties end to end testing

  12 avril 2020, par SquirrelSenpai

  I am streaming mp3 music via ffmpeg to a local rtmp server then converting to hls, but am having difficulties end to end testing. I am know test.m3u8 playlist should be produce, however I am unable to check inside /nginx/hls/ as it is locked by www-data during operation. I have tried multiple permutation of what I thought the output hls stream would be in vlc with no luck. localhost:8080/live/test.m3u8, localhost:8080/hls/test.m3u8

  



  Any tips on effective testing would be much appreciated.

  



  Technologies involved :

  



  

  • FFMPEG

  


  • NGINX (This and the below 3 are part of a module)

  


  • HLS

  


  • RTMP

  


  



  Working :

  



  ffmpeg -hide_banner -i http://149.255.59.164:8138 -f mp3 test.mp3


  



  Seemingly working, correctly reads files, shows conversion of some kind
  
size= 362kB time=00:00:23.09 bitrate= 128.3kbits/s speed=3.21x

  



  fmpeg -hide_banner -i http://x.x.x.x:8138 -f mp3 rtmp://localhost:1935/live/test


  



  Nginx.conf

  



  user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
        worker_connections 768;
        # multi_accept on;
}

rtmp_auto_push on;

rtmp{

        server{

                listen 1935;

                chunk_size 4000;

                #one publisher, many subscribers

                application live {

                        # enable live streaming
                        live on;
                        record off;

                        # publish only from localhost
                        allow publish 127.0.0.1;
                        deny publish all;

                        # hls - required for web browser consumption
                        hls on;
                        hls_path /tmp/hls;
                        hls_fragment 3;
                        hls_playlist_length 60;

                        # disable consuming the streaming from nginx as rtmp
                        deny play all;

                }

        }

}

# HTTP can be used for accessing RTMP stats
http {

    server {

        listen      8080;

        # This URL provides RTMP statistics in XML
        location /stat {
            rtmp_stat all;

            # Use this stylesheet to view XML as web page
            # in browser
            rtmp_stat_stylesheet stat.xsl;
        }

        location /stat.xsl {
            # XML stylesheet to view RTMP stats.
            # Copy stat.xsl wherever you want
            # and put the full directory path here
            root /path/to/stat.xsl/;
        }

        location /hls {
            # Serve HLS fragments
            types {
                application/vnd.apple.mpegurl m3u8;
                video/mp2t ts;
            }
            root /tmp;
            add_header Cache-Control no-cache;
        }

        location /dash {
            # Serve DASH fragments
            root /tmp;
            add_header Cache-Control no-cache;
        }
    }
}