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• FFMPEG : Drawtext filter with word wrapping support [duplicate]

  18 août 2018, par Software Development Consultan

  This question already has an answer here :

  • FFMPEG : Creating video using drawtext along with word wrap and padding
    
    1 answer
    

  I need to draw max two line text at top of some backgroud. I need to wrap that text if that is longer. Text will be horizontal center align.

  I have tried and use DrawText filter but not able to find way to use text wrap automatically.

  Some developers suggesting to use subtitle but this is not related to video so I want to check with Drawtext if possible.
  Draw text using Subtitle filter

  Can someone please guide how we can achieve this ?

  Thank you.

• How to set the starting point of the video file a little bit later

  20 septembre 2018, par user27240

  I would like to set the starting point of the video file a little bit later like 0.01 seconds
  when I open the detail page of the video file at smartphon site by using the ffmpeg, and the coding I tried is below.

  for i in /xxxxxx/xxxxxxx/*.mp4; do ffmpeg -i "$i" -pix_fmt yuv420p -movflags +faststart -ss 0.01 "/xxxxxx/xxxxxxx/$(basename "$i" .mp4).mp4"; done

  The reason for that is because when I open the detail page of the video file at smartphone site(iOS and android)
  it is set to stop to play the video by default(I can not set to start the video automatically) with the circled start button at the white background.(The pc site starts the video automatically by default.)
  So I would like to see the actual picture from the video file by delaying the starting point at the smartphone detail page.

  My understanding is that the starting point of 0 second is the white screen, and then the picture starts to be displayed continuosly after that.

  With the command above it does not set it later even though I don’t get any error.

  Can anyone please help me out to code the right command for this case ? Or is there any other way for this case ?

• Nginx not starting after changing config file for live streaming purpose (Windows 10)

  2 décembre 2018, par Mohammad Ali Zinnah

  When I run the nginx.exe then it start a black screen and stay that

  Black Screen show

  I am new to nginx and ffmpeg

  I am tring it but failed

  Windows 10

  nginx 1.7.11.3 Gryphon.zip

  I Tried in cmd nginx -t and get positive

  Here is my config file

  daemon off;
  
  
  
  error_log logs/error.log debug;
  
  
  
  events {
  
      worker_connections 1024;
  
  }

  RTMP Server and Transcoding

  rtmp {
  
      server {
  
          listen 1935;
  
          chunk_size 4000;
  
  
  
          application stream {
  
              live on;
  
  
  
              exec ffmpeg -i rtmp://localhost:1935/stream/$name
  
                -c:a libfdk_aac -b:a 128k -c:v libx264 -b:v 2500k -f flv -g 30 -r 30 -s 1280x720 -preset superfast -profile:v baseline rtmp://localhost:1935/hls/$name_720p2628kbs
  
                -c:a libfdk_aac -b:a 128k -c:v libx264 -b:v 1000k -f flv -g 30 -r 30 -s 854x480 -preset superfast -profile:v baseline rtmp://localhost:1935/hls/$name_480p1128kbs
  
                -c:a libfdk_aac -b:a 128k -c:v libx264 -b:v 750k -f flv -g 30 -r 30 -s 640x360 -preset superfast -profile:v baseline rtmp://localhost:1935/hls/$name_360p878kbs
  
                -c:a libfdk_aac -b:a 128k -c:v libx264 -b:v 400k -f flv -g 30 -r 30 -s 426x240 -preset superfast -profile:v baseline rtmp://localhost:1935/hls/$name_240p528kbs
  
                -c:a libfdk_aac -b:a 64k -c:v libx264 -b:v 200k -f flv -g 15 -r 15 -s 426x240 -preset superfast -profile:v baseline rtmp://localhost:1935/hls/$name_240p264kbs;
  
          }
  
  
  
          application hls {
  
              live on;
  
              hls on;
  
              hls_fragment_naming system;
  
              hls_fragment 5s;
  
              hls_path /opt/data/hls;
  
              hls_nested on;
  
  
  
              hls_variant _720p2628kbs BANDWIDTH=2628000,RESOLUTION=1280x720;
  
              hls_variant _480p1128kbs BANDWIDTH=1128000,RESOLUTION=854x480;
  
              hls_variant _360p878kbs BANDWIDTH=878000,RESOLUTION=640x360;
  
              hls_variant _240p528kbs BANDWIDTH=528000,RESOLUTION=426x240;
  
              hls_variant _240p264kbs BANDWIDTH=264000,RESOLUTION=426x240;
  
          }
  
      }
  
  }
  
  
  
  **HTTP Server**
  
  
  
  http {
  
      server {
  
          listen 80;
  
  
  
          location /hls {
  
              types {
  
                  application/vnd.apple.mpegurl m3u8;
  
                  video/mp2t ts;
  
              }
  
              root /opt/data;
  
              add_header Cache-Control no-cache;
  
              add_header Access-Control-Allow-Origin *;
  
          }
  
  
  
          location /live {
  
            alias /opt/data/hls;
  
            types {
  
                application/vnd.apple.mpegurl m3u8;
  
                video/mp2t ts;
  
            }
  
            add_header Cache-Control no-cache;
  
            add_header Access-Control-Allow-Origin *;
  
          }
  
  
  
          location /stat {
  
              rtmp_stat all;
  
              rtmp_stat_stylesheet static/stat.xsl;
  
          }
  
  
  
          location /static {
  
              alias /www/static;
  
          }
  
  
  
          location = /crossdomain.xml {
  
              root /www/static;
  
              default_type text/xml;
  
              expires 24h;
  
          }
  
      }
  
  }

  I copied this file from internet so feel free to advice me to edit file
  I dont no what my error is . Please Help me