使用 Google Cloud Function 创建具有子目录路径的视频缩略图

Question

I am uploading Videos by rest api into google Cloud bucket and add one function to generate thumbnail with python.Code working on main directory but my video's uploaded in sub/sub/ directory so my code is not working.

import os
from google.cloud import storage
from subprocess import check_output
from videoprops import get_video_properties

client = storage.Client()
def hello_gcs(data, context):
  
  print(context)
  print(data)

  if data['contentType'].startswith('video/'):

     bucket = client.get_bucket(data['bucket'])
     name = data['name']
    
     file_name = '/tmp/'+ name
     print(file_name)

     thumbnail_file_name = '/tmp/' + name.split('.')[0] + '.jpg'
     print(thumbnail_file_name)

     try:
          os.remove(file_name)
     except OSError:
          pass

     try:
          os.remove(thumbnail_file_name)
     except OSError:
          pass

     print("File has been removed")

   
     blob = bucket.get_blob(name)
     blob.download_to_filename(file_name)

     print("Video Downloaded")

     props = get_video_properties(file_name)

     

     if os.path.exists(file_name):
          print("NEW MP4 EXISTS")            
          check_output('ffmpeg  -itsoffset -4  -i '+file_name+' -vcodec mjpeg -vframes 1 -an -f rawvideo -s '+str(props['width'])+'x'+str(props['height'])+' '+thumbnail_file_name, shell=True)
          thumbnail_blob = bucket.blob('thumbnail.jpg')
          thumbnail_blob.upload_from_filename(thumbnail_file_name)
     else:
          print("MP4 not created")
         
     print("uploaded")

  else :
     print("Not a Video")

So im only accessing tmp but not able to create folder like /tmp/Upload/Video/232/video.mp4.

Thanks Dharmesh

Answer 1

Here my code for sub dir videos can generate thumbnail and upload in same dir.

    import os
from google.cloud import storage
from subprocess import check_output
from videoprops import get_video_properties

client = storage.Client()


def hello_gcs(data, context):
  
  print(context)
  print(data)

  if data['contentType'].startswith('video/'):

     bucket = client.get_bucket(data['bucket'])
    
     name = data['name']
     os.makedirs('/tmp/'+os.path.dirname(name), exist_ok=True) 
     file_name = '/tmp/'+ name
     print(file_name)

     thumbnail_file_name = '/tmp/' + name.split('.')[0] + '.jpg'
     print(thumbnail_file_name)

     try:
          os.remove(file_name)
     except OSError:
          pass

     try:
          os.remove(thumbnail_file_name)
     except OSError:
          pass

     print("File has been removed")

   
     blob = bucket.get_blob(name)
     blob.download_to_filename(file_name)

     print("Video Downloaded")

     props = get_video_properties(file_name)

     

     if os.path.exists(file_name):
          print("NEW MP4 EXISTS")            
          check_output('ffmpeg  -itsoffset -4  -i '+file_name+' -vcodec mjpeg -vframes 1 -an -f rawvideo -s '+str(props['width'])+'x'+str(props['height'])+' '+thumbnail_file_name, shell=True)
          thumbnail_blob = bucket.blob(os.path.dirname(name)+'/thumbnail.jpg')
          thumbnail_blob.upload_from_filename(thumbnail_file_name)
      
     else:
          print("MP4 not created")

     
     print("uploaded")

  else :
     print("Not a Video")

Requirement.txt

• google-cloud-storage
• get-video-properties