AWS Code Sample
Catalog

create_hls_job.py

create_hls_job.py demonstrates how to create an Elastic Transcoder HLS job.

# Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. # # This file is licensed under the Apache License, Version 2.0 (the "License"). # You may not use this file except in compliance with the License. A copy of the # License is located at # # http://aws.amazon.com/apache2.0/ # # This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS # OF ANY KIND, either express or implied. See the License for the specific # language governing permissions and limitations under the License. import boto3 from botocore.exceptions import ClientError def create_elastic_transcoder_hls_job(pipeline_id, input_file, outputs, output_file_prefix, playlists): """Create an Elastic Transcoder HSL job :param pipeline_id: string; ID of an existing Elastic Transcoder pipeline :param input_file: string; Name of existing object in pipeline's S3 input bucket :param outputs: list of dictionaries; Parameters defining each output file :param output_file_prefix: string; Prefix for each output file name :param playlists: list of dictionaries; Parameters defining each playlist :return Dictionary containing information about the job If job could not be created, returns None """ etc_client = boto3.client('elastictranscoder') try: response = etc_client.create_job(PipelineId=pipeline_id, Input={'Key': input_file}, Outputs=outputs, OutputKeyPrefix=output_file_prefix, Playlists=playlists) except ClientError as e: print(f'ERROR: {e}') return None return response['Job'] def main(): """Exercise Elastic Transcoder create_job operation Before running this script, all Elastic Transcoder setup must be completed, such as defining the pipeline and specifying the S3 input and output buckets. Also, the file to transcode must exist in the S3 input bucket. """ # Job configuration settings. Set these values before running the script. pipeline_id = 'PIPELINE_ID' # ID of an existing Elastic Transcoder pipeline input_file = 'FILE_TO_TRANSCODE' # Name of an existing file in the S3 input bucket output_file = 'TRANSCODED_FILE' # Desired root name of the transcoded output files # Other job configuration settings. Optionally change as desired. output_file_prefix = 'elastic-transcoder-samples/output/hls/' # Prefix for all output files segment_duration = '2' # Maximum segment duration in seconds # Elastic Transcoder presets used to create HLS multi-segment # output files in MPEG-TS format hls_64k_audio_preset_id = '1351620000001-200071' # HLS Audio 64kb/second hls_0400k_preset_id = '1351620000001-200050' # HLS 400k hls_0600k_preset_id = '1351620000001-200040' # HLS 600k hls_1000k_preset_id = '1351620000001-200030' # HLS 1M hls_1500k_preset_id = '1351620000001-200020' # HLS 1.5M hls_2000k_preset_id = '1351620000001-200010' # HLS 2M # Define the various outputs outputs = [ { 'Key': 'hlsAudio/' + output_file, 'PresetId': hls_64k_audio_preset_id, 'SegmentDuration': segment_duration, }, { 'Key': 'hls0400k/' + output_file, 'PresetId': hls_0400k_preset_id, 'SegmentDuration': segment_duration, }, { 'Key': 'hls0600k/' + output_file, 'PresetId': hls_0600k_preset_id, 'SegmentDuration': segment_duration, }, { 'Key': 'hls1000k/' + output_file, 'PresetId': hls_1000k_preset_id, 'SegmentDuration': segment_duration, }, { 'Key': 'hls1500k/' + output_file, 'PresetId': hls_1500k_preset_id, 'SegmentDuration': segment_duration, }, { 'Key': 'hls2000k/' + output_file, 'PresetId': hls_2000k_preset_id, 'SegmentDuration': segment_duration, }, ] # Define the playlist playlists = [ { 'Name': 'hls_' + output_file, 'Format': 'HLSv3', 'OutputKeys': [x['Key'] for x in outputs] } ] # Create an HLS job in Elastic Transcoder job_info = create_elastic_transcoder_hls_job(pipeline_id, input_file, outputs, output_file_prefix, playlists) if job_info is None: exit(1) # Output job ID and exit. Do not wait for the job to finish. print(f'Created Amazon Elastic Transcoder HLS job {job_info["Id"]}') if __name__ == '__main__': main()

Sample Details

Service: elastictranscoder

Last tested: 2019-02-04

Author: AWS

On this page: