Video Transcoding with Google Transcoder using PHP and HLS protocol

Introduction In this project, the task is to use PHP to transcode videos of various heights using Google Transcoder service and save the output in a Google Storage bucket. The project mainly focuses on achieving transcoding for the HLS protocol. The transcoded video chunks should be saved in the Google Storage bucket. Additionally, the PHP code should query a database table for non-transcoded videos from the last 24 hours and initiate transcoding only for those videos. At the completion of transcoding, all output should be copied to the Google Storage bucket, and an API provided by the client should be called for completion. Finally, a PHP script should be developed to automate the entire job and run as a cron job at regular intervals. Video Transcoding using Google Transcoder Service The first step in achieving the goal is to utilize the Google Transcoder service to transcode the input videos. The Google Transcoder service provides a flexible and reliable platform for video transcoding. The service supports various input formats, including MP4, MOV, and AVI. The transcoded videos will be of different heights and must comply with the HLS protocol. Saving the Output in the Google Storage Bucket The transcoded videos must be saved in a Google Storage bucket. The Google Storage bucket is a scalable and secure platform for storing files. The bucket will be used to store the transcoded video chunks. The PHP code will access the Google Storage bucket and save the transcoded video chunks. Querying the Database Table for Non-Transcoded Videos The next step is to query the database table for non-transcoded videos from the last 24 hours. The PHP code will access the database and retrieve the necessary information about the non-transcoded videos. This step is crucial to ensure that only non-transcoded videos are transcoded, which will save processing time and resources. Initiating Transcoding for Non-Transcoded Videos Once the non-transcoded videos have been identified, the PHP code will initiate transcoding for those videos using the Google Transcoder service. The transcoded videos will be of different heights and must comply with the HLS protocol. Copying the Output to the Google Storage Bucket At the completion of transcoding, the PHP code will copy all output to the Google Storage bucket. This step is necessary to ensure that the transcoded video chunks are available for further processing. Calling the API Provided by the Client Finally, the PHP code will call an API provided by the client for completion. This step will enable the client to receive a notification once the entire job is completed. Automating the Entire Job and Running as a Cron Job To automate the entire job, a PHP script will be developed that performs all the necessary tasks, as described above. The PHP script will be run as a cron job at regular intervals to ensure that all non-transcoded videos are processed in a timely and efficient manner. Conclusion In summary, the project involves using PHP to achieve video transcoding for various input heights using the Google Transcoder service. The transcoded video chunks will be saved in the Google Storage bucket. Additionally, the PHP code will query a database table for non-transcoded videos of the last 24 hours and initiate transcoding only for those videos. At the completion of transcoding, all output will be copied to the Google Storage bucket, and an API provided by the client will be called for completion. Finally, a PHP script will be developed to automate the entire job and run as a cron job at regular intervals.