Formats, Codecs & Containers

• File extension-container (mp4)

• Container holds audio, visual, metadata etc (separate information in the video inorder to playback)

• Codec- Coder Decoder

• H.264/AVC 

Most commonly used video codec & provides better bitrate

• Makes Audio/visual streams smaller to decode

• H.265/HEVC (High Efficiency Video Coding) 

Half bitrate of H.264, Good for high resolutions. Triple resources to encode & not widely supported

• VP9

Half bitrate of VP9. Royalty free.

• AV1

Unreleased 

• Audio codec

• MP3

Popular with wide support, saves space without noticeable quality loss, limited functionality

• AAC- 

Advanced audio coding- Widely supported, More efficient than MP3, limit on audio channels

• AC3 (Dolby digital)

5.1 Surround sound

• Video formats

Standardised set of rules for storing containers,codecs, meta data and folder structure

• Mp4/MPEG4

Mp4 container (MPEG-4 pt14), ISO base media file (MPEG pt12), H.264 Codec (MPEG-4 pt 10)

Wide support across various platforms

• Adaptive Bitrate Segmentation

Multiple resolutions (1080, 720 etc)

• HLS

.m3u8

• MPEG- DASH

Dynamic adaptive streaming over http. Open source

• Container- MP4

Video codec- H.264

Audio codec- AAC-LC

Channels- Stereo/Stereo 5.1

Aspect ratio- (16:9) -outdated

Frame Rate- 60fps (US)

Tricaster TC1

• Top left- Live video inputs (Live broadcast, graphics, pre- recorded footage) 

• Top right- Program (live) & preview windows 

• Bottom left- Bins to manage footage & audio