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8.2.1.4 Encoder Video Profile
– AVC
Codec - AVC
Profile
Profile controls stream complexity. Available Profiles is restricted by Chroma
Sampling and Bit Depth above.
Level
Auto
– Encoder selects appropriate Level based on resolution, bitrate etc.
CABAC
Selects entropy coding mode. CABAC off results in CAVLC being used. Less
computational complexity for the decoder.
IDR
Frequency
Selects how frequently I frames are upgraded to IDR frames. Value of ‘0’ means no
IDR frames. Value of 4 means every 4
th
I frame is upgraded to IDR frame.
Bitrate
Elementary stream bitrate. Configurable range depends on resolution, tier, latency
mode etc.
GOP Mode
In Dynamic mode encoder alters GOP to optimize VQ.
GOP
Structure
Selects GOP composition. (Latency mode restricts options.)
Max B
Frames
Maximum number of successive B frames.
GOP Size
GOP size. Average distance between I/IDR frames.
8.2.2 Audio Profile
The Encoder Audio Profile defines the
output
characteristics of an audio component. Encoder Audio Profiles are defined
using the Encoder Audio Profile App on the dashboard. Note that if a service consists of multiple audio tracks, multiple
audio profiles may be used for the same service.
Depending on audio codec, different parameters are available for configuration.
Summary of Contents for DMG 4000
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