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• PHP - Upload video convert mp4 and upload to Amazon S3

  31 octobre 2019, par Kadir Geçit

  I’m using amazon s3 as video storage for my website. I’m having problems for some videos. black screen or sound problems etc.

  I want to convert the video to mp4 format after uploading the video to my server and then upload it to amazon. Is it possible with FFMPEG ?

  I’m using this code for uploading files now :

  $file1 = $_FILES['file']['name'];
  
  $videoFileType = strtolower(pathinfo($file1,PATHINFO_EXTENSION));
  
  $file_name = sprintf('%s_%s', uniqid(),uniqid().".".$videoFileType);
  
  $temp_file_location = $_FILES["file"]["tmp_name"];
  
  
  
  require 'application/libraries/Amazon/aws-autoloader.php';
  
          $s3 = new Aws\S3\S3Client([
  
              'region'  => $amazon_region,
  
              'version' => 'latest',
  
              'credentials' => [
  
              'key'    => $amazon_key,
  
              'secret' => $amazon_secret,
  
              ]
  
          ]);     
  
  
  
          $result = $s3->putObject([
  
              'Bucket' => $amazon_bucket,
  
              'Key'    => $file_name,
  
              'SourceFile' => $temp_file_location,
  
              'ACL'    => 'public-read',
  
              'CacheControl' => 'max-age=3153600',
  
          ]);
  
              $filepath = $result['ObjectURL'] . PHP_EOL;
  
  
  
              echo json_encode([
  
                  'status' => 'ok',
  
                  'path' => $filepath
  
  
  
              ]);

• Trouble downloading files in Dropbox Python API v2

  16 août 2019, par 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.

• libavcodec/vp8dec : fix the multi-thread HWAccel decode error

  11 juin 2019, par Shaofei Wang

  libavcodec/vp8dec : fix the multi-thread HWAccel decode error
  Fix the issue : https://github.com/intel/media-driver/issues/317
  the root cause is update_dimensions will be called multple times
  
  when decoder thread number is not only 1, but update_dimensions
  
  call get_pixel_format in each decode thread will trigger the
  
  hwaccel_uninit/hwaccel_init more than once. But only one hwaccel
  
  should be shared with all decode threads.
  
  in current context,
  
  there are 3 situations in the update_dimensions() :
  
  1. First time calling. No matter single thread or multithread,
  
     get_pixel_format() should be called after dimensions were
  
     set ;
  
  2. Dimention changed at the runtime. Dimention need to be
  
     updated when macroblocks_base is already allocated,
  
     get_pixel_format() should be called to recreate new frames
  
     according to updated dimension ;
  
  3. Multithread first time calling. After decoder init, the
  
     other threads will call update_dimensions() at first time
  
     to allocate macroblocks_base and set dimensions.
  
     But get_pixel_format() is shouldn't be called due to low
  
     level frames and context are already created.
  In this fix, we only call update_dimensions as need.
  Signed-off-by : Wang, Shaofei <shaofei.wang@intel.com>
  
  Reviewed-by : Jun, Zhao <jun.zhao@intel.com>
  
  Reviewed-by : Haihao Xiang <haihao.xiang@intel.com>
  
  Signed-off-by : Ronald S. Bultje <rsbultje@gmail.com>
  

  • [DH] libavcodec/vp8.c