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• How much video data is required to get stream information using ffprobe?

  21 October 2014, by Mayank

  I am using java to download a video file from my cloud. Later on I am using java runtime to execute ffprobe on that video file. The video file size could be in hundreds of MBs. I want to know that can I make only a partial download of the video file (say around 10kb) and run ffprobe on this content and still get all relevant information? If yes, how much data should be downloaded to guarantee successful ffprobe results?

• FFMPEG RTSP Streaming delay

  25 July 2016, by Spartan

  I am using FFMPEG with android and saving the RTSP Stream from my IP Camera to directly into local storage using following command:

  ffmpeg -i rtsp://@192.168.241.1:62156 -acodec copy -vcodec copy c:/abc.mp4

  This command is working fine and I am able to store RTSP directly into local storage of device.

  Problem: (The delay in start of the RTSP download)

  This problem mostly occurring with lower end devices and the delay time to start the download RTSP is variably changing(from 0-4 seconds) based upon the configuration of devices. In higher end devices the delay is around 100 to 300 milliseconds and that is okay.

  If somehow I can get the delay time in starting the RTSP download then I can handle my cases. So my question is: Is there any way to get the delay time?

• Trouble downloading files in Dropbox Python API v2

  16 August 2019, by jack

  I’m trying to download .mov files from Dropbox, manipulate them with ffmpeg, and upload back to Dropbox, but I’m getting an error when I use the files_download method.

  I’m able to read files from Dropbox without any problem using dbx.files_list_folder

  When trying to download files, I’ve used the following:

  import dropbox
  
  access_token = 'MY TOKEN'
  
  dbx = dropbox.Dropbox(access_token)
  
  metadata,file=dbx.files_download('path to .mov file')

  and I get the error

  SSLError: HTTPSConnectionPool(host='content.dropboxapi.com', port=443): Max retries exceeded with url: /2/files/download (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')])")))

  I don’t know if this is a cause, but I didn’t use the Dropbox app key or app secret in setting things up. In going through the API v2 setup, it looked like all you need is the API Access token, but I’m wondering if there’s a permissions error.

  I’ll only be using this app for myself—it’s not meant for production.