dmthomas · July 22, 2020 11:57
diff --git a/wwdc2020-2160p.sh b/wwdc2020-2160p.sh
 # Script to download all the WWDC 2020 session videos in the highest 4K video and audio
 # You may have to update ffmpeg before using this script. I needed version 4.3 or higher to successfully download the videos.
 #
 # If you want the lower bitrate audio, do a find/replace of "audio_english_192" with "audio_english_64"
 # If you want lower bitrate or lower resolution video, do a find/replace of "hvc_2160p_16800" with any of the following:
 # "hvc_2160p_11600"
 # "hvc_1440p_8100"
 # "hvc_1080p_5800"
 # "hvc_1080p_4500"
 # "hvc_720p_3400"
 # "hvc_720p_2400"
 # "hvc_540p_1600"
 # "avc_1080p_6000"
 # "avc_720p_4500"
 # "avc_720p_3000"
 # "avc_540p_2000"
 #
 # Test using the below five lines to get the Monday Wrap-up video because it's short before using all or any of the remaining script.
 #ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10691/2/A92788CB-81ED-4CCF-B6B1-4DD7A1F3E87D/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10691 temp.mp4"
 #ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10691/2/A92788CB-81ED-4CCF-B6B1-4DD7A1F3E87D/audio_english_192/prog_index.m3u8 -c copy "Session - 10691 temp.aac"
 #ffmpeg -i "Session - 10691 temp.mp4" -i "Session - 10691 temp.aac" -c copy "Session 10691 - [email protected]"
 #rm "Session - 10691 temp.mp4"
 #rm "Session - 10691 temp.aac"
 #
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/102/1/D80F0868-A427-49B2-8422-D79AB307560E/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 102 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/102/1/D80F0868-A427-49B2-8422-D79AB307560E/audio_english_192/prog_index.m3u8 -c copy "Session - 102 temp.aac"
 ffmpeg -i "Session - 102 temp.mp4" -i "Session - 102 temp.aac" -c copy "Session 102 - Platforms State of the Union.mp4"
 rm "Session - 102 temp.mp4"
 rm "Session - 102 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10004/3/5EA087F0-CA3A-4A96-82EF-C4F9535695B6/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10004 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10004/3/5EA087F0-CA3A-4A96-82EF-C4F9535695B6/audio_english_192/prog_index.m3u8 -c copy "Session - 10004 temp.aac"
 ffmpeg -i "Session - 10004 temp.mp4" -i "Session - 10004 temp.aac" -c copy "Session 10004 - Expanding automation with the App Store Connect API.mp4"
 rm "Session - 10004 temp.mp4"
 rm "Session - 10004 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10005/2/249EF487-AF09-4A6B-8734-218EB66D6671/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10005 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10005/2/249EF487-AF09-4A6B-8734-218EB66D6671/audio_english_192/prog_index.m3u8 -c copy "Session - 10005 temp.aac"
 ffmpeg -i "Session - 10005 temp.mp4" -i "Session - 10005 temp.aac" -c copy "Session 10005 - What's new in assessment.mp4"
 rm "Session - 10005 temp.mp4"
 rm "Session - 10005 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10006/1/02933507-C933-414F-934F-29DD0D82B6AA/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10006 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10006/1/02933507-C933-414F-934F-29DD0D82B6AA/audio_english_192/prog_index.m3u8 -c copy "Session - 10006 temp.aac"
 ffmpeg -i "Session - 10006 temp.mp4" -i "Session - 10006 temp.aac" -c copy "Session 10006 - Introducing Car Keys.mp4"
 rm "Session - 10006 temp.mp4"
 rm "Session - 10006 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10008/4/5AB40083-DB36-4DDE-8F71-52A43F3865DF/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10008 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10008/4/5AB40083-DB36-4DDE-8F71-52A43F3865DF/audio_english_192/prog_index.m3u8 -c copy "Session - 10008 temp.aac"
 ffmpeg -i "Session - 10008 temp.mp4" -i "Session - 10008 temp.aac" -c copy "Session 10008 - Optimize the Core Image pipeline for your video app.mp4"
 rm "Session - 10008 temp.mp4"
 rm "Session - 10008 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10009/6/70938EA4-71D0-4036-A3CB-9A6EF1273325/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10009 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10009/6/70938EA4-71D0-4036-A3CB-9A6EF1273325/audio_english_192/prog_index.m3u8 -c copy "Session - 10009 temp.aac"
 ffmpeg -i "Session - 10009 temp.mp4" -i "Session - 10009 temp.aac" -c copy "Session 10009 - Edit and play back HDR video with AVFoundation.mp4"
 rm "Session - 10009 temp.mp4"
 rm "Session - 10009 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10010/2/2225D15B-77FC-4E59-8FE2-B672B817B8AE/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10010 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10010/2/2225D15B-77FC-4E59-8FE2-B672B817B8AE/audio_english_192/prog_index.m3u8 -c copy "Session - 10010 temp.aac"
 ffmpeg -i "Session - 10010 temp.mp4" -i "Session - 10010 temp.aac" -c copy "Session 10010 - Export HDR media in your app with AVFoundation.mp4"
 rm "Session - 10010 temp.mp4"
 rm "Session - 10010 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10011/1/E824C41D-19F4-4AC3-AED5-23467D2DAB0E/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10011 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10011/1/E824C41D-19F4-4AC3-AED5-23467D2DAB0E/audio_english_192/prog_index.m3u8 -c copy "Session - 10011 temp.aac"
 ffmpeg -i "Session - 10011 temp.mp4" -i "Session - 10011 temp.aac" -c copy "Session 10011 - Author fragmented MPEG-4 content with AVAssetWriter.mp4"
 rm "Session - 10011 temp.mp4"
 rm "Session - 10011 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10012/2/24D04013-C950-4074-891E-EFBB3ABD9D62/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10012 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10012/2/24D04013-C950-4074-891E-EFBB3ABD9D62/audio_english_192/prog_index.m3u8 -c copy "Session - 10012 temp.aac"
 ffmpeg -i "Session - 10012 temp.mp4" -i "Session - 10012 temp.aac" -c copy "Session 10012 - Discover ray tracing with Metal.mp4"
 rm "Session - 10012 temp.mp4"
 rm "Session - 10012 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10013/2/A859FF75-C6A9-4C68-BE40-1BC692C81505/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10013 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10013/2/A859FF75-C6A9-4C68-BE40-1BC692C81505/audio_english_192/prog_index.m3u8 -c copy "Session - 10013 temp.aac"
 ffmpeg -i "Session - 10013 temp.mp4" -i "Session - 10013 temp.aac" -c copy "Session 10013 - Get to know Metal function pointers.mp4"
 rm "Session - 10013 temp.mp4"
 rm "Session - 10013 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10017/4/56EE5AF2-2087-4A9D-99F9-9308C0CCCB53/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10017 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10017/4/56EE5AF2-2087-4A9D-99F9-9308C0CCCB53/audio_english_192/prog_index.m3u8 -c copy "Session - 10017 temp.aac"
 ffmpeg -i "Session - 10017 temp.mp4" -i "Session - 10017 temp.aac" -c copy "Session 10017 - Core Data: Sundries and maxims.mp4"
 rm "Session - 10017 temp.mp4"
 rm "Session - 10017 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10019/5/3AF1C46A-B904-4AC4-91A5-15312B249C5F/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10019 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10019/5/3AF1C46A-B904-4AC4-91A5-15312B249C5F/audio_english_192/prog_index.m3u8 -c copy "Session - 10019 temp.aac"
 ffmpeg -i "Session - 10019 temp.mp4" -i "Session - 10019 temp.aac" -c copy "Session 10019 - App accessibility for Switch Control.mp4"
 rm "Session - 10019 temp.mp4"
 rm "Session - 10019 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10020/5/C64A687F-F0D4-4294-AB34-A289CFFC3AE7/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10020 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10020/5/C64A687F-F0D4-4294-AB34-A289CFFC3AE7/audio_english_192/prog_index.m3u8 -c copy "Session - 10020 temp.aac"
 ffmpeg -i "Session - 10020 temp.mp4" -i "Session - 10020 temp.aac" -c copy "Session 10020 - Make your app visually accessible.mp4"
 rm "Session - 10020 temp.mp4"
 rm "Session - 10020 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10021/5/F235075E-8CFC-43D9-8B58-07F6C7337FFD/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10021 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10021/5/F235075E-8CFC-43D9-8B58-07F6C7337FFD/audio_english_192/prog_index.m3u8 -c copy "Session - 10021 temp.aac"
 ffmpeg -i "Session - 10021 temp.mp4" -i "Session - 10021 temp.aac" -c copy "Session 10021 - Build Metal-based Core Image kernels with Xcode.mp4"
 rm "Session - 10021 temp.mp4"
 rm "Session - 10021 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10022/2/28325B31-AC65-4DD2-9FB7-47C67AF86D8E/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10022 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10022/2/28325B31-AC65-4DD2-9FB7-47C67AF86D8E/audio_english_192/prog_index.m3u8 -c copy "Session - 10022 temp.aac"
 ffmpeg -i "Session - 10022 temp.mp4" -i "Session - 10022 temp.aac" -c copy "Session 10022 - Create a seamless speech experience in your apps.mp4"
 rm "Session - 10022 temp.mp4"
 rm "Session - 10022 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10026/5/B32D5162-C0B7-418D-B9F9-DED5EFD06655/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10026 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10026/5/B32D5162-C0B7-418D-B9F9-DED5EFD06655/audio_english_192/prog_index.m3u8 -c copy "Session - 10026 temp.aac"
 ffmpeg -i "Session - 10026 temp.mp4" -i "Session - 10026 temp.aac" -c copy "Session 10026 - Lists in UICollectionView.mp4"
 rm "Session - 10026 temp.mp4"
 rm "Session - 10026 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10027/1/83130B0F-2957-4A34-8FF3-AFD3AD6E7739/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10027 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10027/1/83130B0F-2957-4A34-8FF3-AFD3AD6E7739/audio_english_192/prog_index.m3u8 -c copy "Session - 10027 temp.aac"
 ffmpeg -i "Session - 10027 temp.mp4" -i "Session - 10027 temp.aac" -c copy "Session 10027 - Modern cell configuration.mp4"
 rm "Session - 10027 temp.mp4"
 rm "Session - 10027 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10028/2/D443EC7E-54A5-4B9A-B073-18EBE9A7CE2A/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10028 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10028/2/D443EC7E-54A5-4B9A-B073-18EBE9A7CE2A/audio_english_192/prog_index.m3u8 -c copy "Session - 10028 temp.aac"
 ffmpeg -i "Session - 10028 temp.mp4" -i "Session - 10028 temp.aac" -c copy "Session 10028 - Meet WidgetKit.mp4"
 rm "Session - 10028 temp.mp4"
 rm "Session - 10028 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10031/3/1B7C8541-59F6-419E-A1AF-A97B2A636C1B/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10031 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10031/3/1B7C8541-59F6-419E-A1AF-A97B2A636C1B/audio_english_192/prog_index.m3u8 -c copy "Session - 10031 temp.aac"
 ffmpeg -i "Session - 10031 temp.mp4" -i "Session - 10031 temp.aac" -c copy "Session 10031 - Stacks, Grids, and Outlines in SwiftUI.mp4"
 rm "Session - 10031 temp.mp4"
 rm "Session - 10031 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10033/4/304690FC-B7D9-4ADD-9ECB-1A44B05144B7/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10033 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10033/4/304690FC-B7D9-4ADD-9ECB-1A44B05144B7/audio_english_192/prog_index.m3u8 -c copy "Session - 10033 temp.aac"
 ffmpeg -i "Session - 10033 temp.mp4" -i "Session - 10033 temp.aac" -c copy "Session 10033 - Build SwiftUI views for widgets.mp4"
 rm "Session - 10033 temp.mp4"
 rm "Session - 10033 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10034/1/DD97BF31-3402-43A6-81EB-079E0E1F7EED/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10034 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10034/1/DD97BF31-3402-43A6-81EB-079E0E1F7EED/audio_english_192/prog_index.m3u8 -c copy "Session - 10034 temp.aac"
 ffmpeg -i "Session - 10034 temp.mp4" -i "Session - 10034 temp.aac" -c copy "Session 10034 - Widgets Code-along, part 1 - The adventure begins.mp4"
 rm "Session - 10034 temp.mp4"
 rm "Session - 10034 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10035/2/70BC41EB-D88F-4E60-9C0F-83A10608927B/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10035 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10035/2/70BC41EB-D88F-4E60-9C0F-83A10608927B/audio_english_192/prog_index.m3u8 -c copy "Session - 10035 temp.aac"
 ffmpeg -i "Session - 10035 temp.mp4" -i "Session - 10035 temp.aac" -c copy "Session 10035 - Widgets Code-along, part 2 - Alternate timelines.mp4"
 rm "Session - 10035 temp.mp4"
 rm "Session - 10035 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10036/2/DEDFDF9D-EC34-4B75-9E5B-D3E51C6F02CA/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10036 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10036/2/DEDFDF9D-EC34-4B75-9E5B-D3E51C6F02CA/audio_english_192/prog_index.m3u8 -c copy "Session - 10036 temp.aac"
 ffmpeg -i "Session - 10036 temp.mp4" -i "Session - 10036 temp.aac" -c copy "Session 10036 - Widgets Code-along, part 3 - Advancing timelines.mp4"
 rm "Session - 10036 temp.mp4"
 rm "Session - 10036 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10037/2/4F91FDCC-9D6D-49CE-97C9-693004DDE30C/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10037 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10037/2/4F91FDCC-9D6D-49CE-97C9-693004DDE30C/audio_english_192/prog_index.m3u8 -c copy "Session - 10037 temp.aac"
 ffmpeg -i "Session - 10037 temp.mp4" -i "Session - 10037 temp.aac" -c copy "Session 10037 - App essentials in SwiftUI.mp4"
 rm "Session - 10037 temp.mp4"
 rm "Session - 10037 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10039/2/77FEC8BA-EBFE-492B-BD87-7F4B92EEDF69/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10039 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10039/2/77FEC8BA-EBFE-492B-BD87-7F4B92EEDF69/audio_english_192/prog_index.m3u8 -c copy "Session - 10039 temp.aac"
 ffmpeg -i "Session - 10039 temp.mp4" -i "Session - 10039 temp.aac" -c copy "Session 10039 - Build document-based apps in SwiftUI.mp4"
 rm "Session - 10039 temp.mp4"
 rm "Session - 10039 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10040/2/1883A34E-C606-4F56-9A9C-35B67257264E/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10040 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10040/2/1883A34E-C606-4F56-9A9C-35B67257264E/audio_english_192/prog_index.m3u8 -c copy "Session - 10040 temp.aac"
 ffmpeg -i "Session - 10040 temp.mp4" -i "Session - 10040 temp.aac" -c copy "Session 10040 - Data Essentials in SwiftUI.mp4"
 rm "Session - 10040 temp.mp4"
 rm "Session - 10040 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10041/5/A0813DDE-8B07-4794-8A8E-5B4369D5E189/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10041 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10041/5/A0813DDE-8B07-4794-8A8E-5B4369D5E189/audio_english_192/prog_index.m3u8 -c copy "Session - 10041 temp.aac"
 ffmpeg -i "Session - 10041 temp.mp4" -i "Session - 10041 temp.aac" -c copy "Session 10041 - What's new in SwiftUI.mp4"
 rm "Session - 10041 temp.mp4"
 rm "Session - 10041 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10042/4/B38E5ED8-1188-4675-877A-272A47769177/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10042 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10042/4/B38E5ED8-1188-4675-877A-272A47769177/audio_english_192/prog_index.m3u8 -c copy "Session - 10042 temp.aac"
 ffmpeg -i "Session - 10042 temp.mp4" -i "Session - 10042 temp.aac" -c copy "Session 10042 - Build SwiftUI apps for tvOS.mp4"
 rm "Session - 10042 temp.mp4"
 rm "Session - 10042 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10043/2/949BD199-627B-486F-A85A-1255E4B935EC/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10043 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10043/2/949BD199-627B-486F-A85A-1255E4B935EC/audio_english_192/prog_index.m3u8 -c copy "Session - 10043 temp.aac"
 ffmpeg -i "Session - 10043 temp.mp4" -i "Session - 10043 temp.aac" -c copy "Session 10043 - Build an Action Classifier with Create ML.mp4"
 rm "Session - 10043 temp.mp4"
 rm "Session - 10043 temp.aac"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10045/1/05C8FECE-B00F-4E58-9B29-B62713F310D7/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10045 temp.mp4"
 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10045/1/05C8FECE-B00F-4E58-9B29-B62713F310D7/audio_english_192/prog_index.m3u8 -c copy "Session - 10045 temp.aac"
 ffmpeg -i "Session - 10045 temp.mp4" -i "Session - 10045 temp.aac" -c copy "Session 10045 - Advances in diffable data sources.mp4"
 rm "Session - 10045 temp.mp4"
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 ffmpeg -i https://devstreaming-cdn.apple.com/videos/wwdc/2020/10046/3/81191926-FCF7-408D-A0CF-AD8C402ACF1C/hvc_2160p_16800/prog_index.m3u8 -c copy "Session - 10046 temp.mp4"
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