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• How to display print statement from a function on GUI in Tkinter

  12 février 2021, par amarykya_ishtmella

  I am writing a GUI that takes videos and downsamples them.

  


  I have three buttons
1.Input for getting the input directory
2.Output for getting the directory to write the output files
3.Downsample : For downsampling function.

  


  I want to print "Done downsampling" after the downsampling process is over on the GUI display.

  


  I was using a label, but it's not working. Can anyone help me out with this ?

  


  

from tkinter import *
from tkinter import ttk
import mttkinter
from tkinter.filedialog import *
import tkinter as tk

froot = Tk() 
froot.title('GHC')
froot.iconbitmap()
froot.geometry('500x500') 


n = ttk.Notebook(froot)
n.pack(pady=10) #pady is giving the space at the bottom
f1 = tk.Frame(n,width=500,height=500,bg = "blue")
f2 = tk.Frame(n,width=500,height=500, bg = "red")
f1.pack(fill="both",expand=1)
f2.pack(fill="both",expand=1)

n.add(f1, text='Downsample')
n.add(f2, text='Analyze')


### button to get input path to folder

#directory = None
def open_file(): 
    file = askdirectory() 
    if file is not None:
        global directory
        directory =file
        print (directory)
btn = Button(f1, text ='Input folder', command = lambda:open_file())
btn.pack(side = TOP, pady = 10) 



### button to get output folder
#directory2 = None
def output_file(): 
    file2 = askdirectory() 
    if file2 is not None:
        global directory2
        directory2 =file2
        print (directory2)
btn2 = Button(f1, text ='Output folder', command = lambda:output_file())
btn2.pack(side=BOTTOM,pady = 10) 


root=str(directory)
outputpath=str(directory2)

btn2 = Button(f1, text ='Downsample', command =lambda:downsamplevideos(root,outputpath))
btn2.pack(pady = 10)
#####

def get_videos (root):

    files = []

    for f in os.listdir(root):

        joined = root + '/' + f

        if os.path.isdir(root + '/' + f):

            files += get_videos(joined)

        else:

            # if f.split('.')[-1] == mp4

            files += [joined]

    return files

def downsamplevideos(root,ouputpath):
    for files in get_videos(root):
        dirpath=files.split('/')[-2]
        filename=files.split('/')[-1]
        outputvideofile= dirpath +filename
        process=(   
        ffmpeg
        .input(files)
        .filter_('scale', 532, 300)
        .output(os.path.join(outputpath,"{}".format(outputvideofile))
        .overwrite_output()
        .run(capture_stdout=True, capture_stderr=False)
        )
    global labelprint
    labelprint=ttk.Label(f1,text="Downsampling Done") ##also tried here Label(), tk.Label()...did not work
    labelprint.pack()

#########


  


  I am getting the following error :

  


  
  File "", line 85
    labelprint=ttk.Label(f1,text="Downsampling Done")
             ^
SyntaxError: invalid syntax


  


• writeImages and renaming the images using PHP

  3 mai 2015, par Kiran Kumar Dash

  I am working on a multimedia project. So, I am having a case where I am producing a sequence of images from a string input using he code below :

  <?php
  
  
  
      /*** a new Imagick object ***/ 
  
      $aniGif = new Imagick();
  
  
  
      /*** set the image format to gif ***/
  
      $aniGif->setFormat( "gif" );
  
  
  
      /*** a new ImagickPixel object for the colors ***/
  
      $color = new ImagickPixel( "white" );
  
  
  
      /*** set color to white ***/
  
      $color->setColor( "white" );
  
  
  
      $colorarray =array("white", "red", "blue" , "aqua", "fuchsia", "gray", "lime", "maroon", "navy", "orange", "purple", "silver", "teal", "yellow",  "green", "maroon", "green", "olive");
  
  
  
      /*** the text for the image ***/
  
      $string = "Hello Kiran Kumar";
  
  
  
  
  
      /*** a new draw object ***/
  
      $draw = new ImagickDraw();
  
  
  
      /*** set the draw font to helvetica ***/
  
      $draw->setFont( "./SociaLAnimaL.ttf" );
  
  
  
      /*** set the draw font to helvetica ***/
  
      $draw->setFontSize( "100" );
  
  
  
      /*** loop over the text ***/
  
      for ( $i = 0; $i <= strlen( $string ); $i++ )
  
      {
  
          /*** grab a character ***/
  
          $part = substr( $string, 0, $i );
  
  
  
          /*** a new ImagickPixel object for the colors ***/
  
          $color = new ImagickPixel( "white" );
  
  
  
          /*Generate random number for random color*/
  
          $randomNumber = rand(0,16);
  
  
  
          /*** create a new gif frame ***/
  
          $aniGif->newImage( 1920, 1200, $colorarray[$randomNumber] );
  
  
  
          /*** add the character to the image ***/
  
          $aniGif->annotateImage( $draw, 960, 600, 0, $part );
  
  
  
          /*** set the frame delay to 30 ***/
  
          $aniGif->setImageDelay( 30 );
  
  
  
      }
  
       /*** write the file ***/
  
          $aniGif->writeImages($directory.'kiran.jpg', $out);
  
  
  
  
  
  
  
  
  
      echo 'all done';
  
  
  
  ?>

  Now the problem is the writeimages object is generating images as kiran-0.jpg, kiran-1.jpg, kiran-2.jpg and so on. but what I am expecting is kiran001.jpg, kiran002.jpg, kiran003.jpg...and so on so that I can create a video out of it in while maintaining the sequence.Here is the code for video creation :

  <?php
  
  $ffmpeg= "/home/kiran/bin/ffmpeg";
  
      echo exec("$ffmpeg -f image2 -framerate 2/1 -pattern_type glob -i \"/var/www/html/fftest/getthumbnail/tmp/animate/est/*.jpg\" -i \"/var/www/html/fftest/getthumbnail/audios/audio1.mp3\" -c:v libx264 -c:a copy -shortest  -s 1920x1080 -r 60 -vf \"format=yuv420p\" \"/var/www/html/fftest/getthumbnail/output/animatedaudiocolor21.avi\" 2>&1" , $output, $return);
  
  ?>

  As you can see I am using -pattern type glob to select all the images, but this is getting confused with he naming sequence of kiran-0, kiran-1.

  So, what I am expecting here is how can I use writeimage object o name my images as the way mentioned above. so that I can use kiran%03d.jpg in my ffmpeg command instead of *.jpg.

  Or if any one can help me providing a code so that I can rename all the images in the expected manner.I tried the below code to rename all images :

  <?php
  
  $fileFolder="/fftest/getthumbnail/tmp/animate/test";
  
  $directory = $_SERVER['DOCUMENT_ROOT'].$fileFolder.'/';
  
  
  
  $i = 001; 
  
  $handler = opendir($directory);
  
  while ($file = readdir($handler)) {
  
      if ($file != "." && $file != "..") {
  
          $newName = 'kiran'.$i ;
  
          rename($directory.$file, $directory.$newName); // here; prepended a $directory
  
          $i++;
  
      }
  
  }
  
  closedir($handler);
  
  
  
  ?>

  But the code is unable to rename the images in sequence.

  Help please...

• continuous record/recognize audio with pocketsphinx/ffmpeg

  10 novembre 2017, par Michael

  as the title already says, I want to continuous record raw audio through my microphone.
  So the idea was running a simple C program in the background as service that would create chunks of audio and send those files through the sphinx speech recognition.

  After that I can do some processing with the recognized words.

  The problem is the (continuous) recognition. I can’t just record audio chunks containing 10 seconds what i’ve said, because maybe chunk[33] -> chunk[34] belong together and then sphinx would output something like :

  recognized chunk[33] -> ["enable light"]
  
  recognized chunk[34] -> ["5 with 50 percent"]

  Another approach would be to continuous record audio but then I can’t process big audio files with sphinx.

  I’m using the basic example from pocketsphinx :

  #include 
  
  
  
  int main(int argc, char *argv[])
  
  {
  
  ps_decoder_t *ps;
  
  cmd_ln_t *config;
  
  FILE *fh;
  
  char const *hyp, *uttid;
  
  int16 buf[512];
  
  int rv;
  
  int32 score;
  
  
  
  config = cmd_ln_init(NULL, ps_args(), TRUE,
  
               "-hmm", MODELDIR "/en-us/en-us",
  
               "-lm", MODELDIR "/en-us/en-us.lm.bin",
  
               "-dict", MODELDIR "/en-us/cmudict-en-us.dict",
  
               NULL);
  
  if (config == NULL) {
  
  fprintf(stderr, "Failed to create config object, see log for details\n");
  
  return -1;
  
  }
  
  
  
  ps = ps_init(config);
  
  if (ps == NULL) {
  
  fprintf(stderr, "Failed to create recognizer, see log for details\n");
  
  return -1;
  
  }
  
  
  
  fh = fopen("audiochunk_33.raw", "rb");
  
  if (fh == NULL) {
  
  fprintf(stderr, "Unable to open input file goforward.raw\n");
  
  return -1;
  
  }
  
  
  
  rv = ps_start_utt(ps);
  
  
  
  while (!feof(fh)) {
  
  size_t nsamp;
  
  nsamp = fread(buf, 2, 512, fh);
  
  rv = ps_process_raw(ps, buf, nsamp, FALSE, FALSE);
  
  }
  
  
  
  rv = ps_end_utt(ps);
  
  hyp = ps_get_hyp(ps, &score);
  
  printf("Recognized: %s\n", hyp);
  
  
  
  fclose(fh);
  
  ps_free(ps);
  
  cmd_ln_free_r(config);
  
  
  
  return 0;

  }

  And here is a basic example using ffmpeg to create a simple audio file/chunk :

  #include 
  
  #include 
  
  #include 
  
  
  
  #define N 44100
  
  
  
  void main()
  
  {
  
  // Create audio buffer
  
  int16_t buf[N] = {0}; // buffer
  
  int n;                // buffer index
  
  double Fs = 44100.0;  // sampling frequency
  
  
  
  // Generate 1 second of audio data - it's just a 1 kHz sine wave
  
  for (n=0 ; n<n></n>Fs);
  
  
  
  // Pipe the audio data to ffmpeg, which writes it to a wav file
  
  FILE *pipeout;
  
  pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - beep.wav", "w");
  
  fwrite(buf, 2, N, pipeout);
  
  pclose(pipeout);
  
  }

  BR
  Michael