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• How to set watermark resolution according to video resolution ?

  10 avril 2018, par Kiran

  Here i am trying to create a video editor with top and bottom text.I can set 2 text on top and bottom with different size, color and fonts for that text and i am converting that text to image and adding as watermark.

  But when resolution of video decreases the size of watermark image increase and vise versa.I am using ffmpeg commands.Now i am calculating like as shown below.

    if (video_width <= 300) {
  
  
  
                  Log.e("less than", "300");
  
                  water_resolution_bt = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_bt_width / 2 + 30) + ":" + getDPsFromPixels(getApplicationContext(), tv_bt_height / 2 + 15));
  
  
  
                  water_resolution = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_top_width / 2 + 30) + ":" + getDPsFromPixels(getApplicationContext(), tv_top_height / 2 + 15));
  
  
  
              } else if (video_width > 300 && video_width <= 400) {
  
  
  
                  Log.e("less than", "400");
  
                  water_resolution_bt = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_bt_width / 2 + 130) + ":" + getDPsFromPixels(getApplicationContext(), tv_bt_height / 2 + 70));
  
  
  
                  water_resolution = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_top_width / 2 + 130) + ":" + getDPsFromPixels(getApplicationContext(), tv_top_height / 2 + 70));
  
  
  
              } else if (video_width > 400 && video_width <= 600) {
  
                  Log.e("btw ", "400 and 600");
  
                  water_resolution_bt = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_bt_width + 80) + ":" + getDPsFromPixels(getApplicationContext(), tv_bt_height + 40));
  
  
  
                  water_resolution = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_top_width + 80) + ":" + getDPsFromPixels(getApplicationContext(), tv_top_height + 40));
  
              } else if (video_width > 600 && video_width <= 1000) {
  
                  Log.e("btw ", "600 and 1000");
  
                  water_resolution_bt = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_bt_width + 100) + ":" + getDPsFromPixels(getApplicationContext(), tv_bt_height + 100));
  
  
  
                  water_resolution = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_top_width + 100) + ":" + getDPsFromPixels(getApplicationContext(), tv_top_height + 100));
  
  
  
              } else if (video_width > 1000) {
  
                  Log.e("grthr than ", "1000");
  
                  water_resolution = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_top_width * 2 + 20) + ":" + getDPsFromPixels(getApplicationContext(), tv_top_height * 2 + 20));
  
                  water_resolution_bt = String.valueOf(getDPsFromPixels(getApplicationContext(), tv_bt_width * 2 + 20) + ":" + getDPsFromPixels(getApplicationContext(), tv_bt_height * 2 + 20));
  
  
  
              }

  This will not give accurate results.Can anyone suggest any other calculation methods.I have also tried with "drawtext" method .It also have same issue.

• Choose download resolution in m3u8 list with ffmpeg

  31 mars 2024, par Bruno Andrade

  I'm trying to download video from a m3u8 playlist using ffmpeg but I do not know how to choose the resolution to download. Currently the command is downloading the highest version

  



  the command I am using is :

  



  /home/user/bin/ffmpeg -user_agent "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0" -i "https://sitevideo.com/list.m3u8" -c copy "/home/file/video.ts"


  



  My list is this

  



  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-STREAM-INF:BANDWIDTH=400000,NAME="low"
size1.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=800000,NAME="med"
size2.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=1900000,NAME="best"
size3.m3u8


  


• get video resolution from ffpmeg [duplicate]

  22 mai 2018, par MertTheGreat

  This question already has an answer here :

  • TypeError : can’t use a string pattern on a bytes-like object in re.findall()
    
    2 answers
    
  • How can I get the resolution (width and height) for a video file from a linux command line ?
    
    9 answers
    

  I try to get resolution of a video file, and hope this code would help thanks to arionik from GitHub

  from subprocess import Popen, PIPE
  
  
  
  def getWH(pathvideofile):
  
  in_pipe = Popen(["ffmpeg", "-i", "\"%s\"" % (pathvideofile)], stderr=PIPE)
  
  lines = in_pipe.stderr.readlines()
  
  for line in lines:
  
      rx = re.compile('.+Video.+, (\d{2,4})x(\d{2,4}).+')
  
      m = rx.match(line)
  
      if m is not None:
  
          w = int(m.group(1))
  
          h = int(m.group(2))
  
  return w, h

  But get this error code :

  m = rx.match(line)
  
  TypeError: cannot use a string pattern on a bytes-like object

  What it could be ?

  Thank you,