This document defines the default set of transcoding profiles for OpenTV Platform. They have been selected based on:
-
Cost/performance
-
Device compatibility
-
Encoder capabilities
General settings are as follows:
-
Passthrough hertz/framerate – framerate support will vary on device but target up to 60 fps for compatibility.
-
The operator can choose to reduce number of variants on ABR sets
Encoding modes
-
VOD 2 Pass, VBR
-
Live CBR (capped), 1 pass
Bitrate tables
SD – with curtains as needed
|
Video bitrates (Kbits/s) |
Pixel sizes |
Audio bitrate (Kbits/s) / encoding |
Video codec |
Notes |
|---|---|---|---|---|
|
64 |
N/A |
32 LC-AAC |
N/A |
Audio only, HLS only |
|
235 |
720x480 |
32 LC-AAC |
H264 4.1 Main |
|
|
375 |
720x480 |
32 LC-AAC |
H264 4.1 Main |
|
|
560 |
720x480 |
32 LC-AAC |
H264 4.1 Main |
|
|
750 |
720x480 |
32 LC-AAC |
H264 4.1 Main |
|
|
1050 |
720x480 |
32 LC-AAC |
H264 4.1 Main |
|
|
1750 |
720x480 |
32 LC-AAC |
H264 4.1 Main |
|
HD – 16:9 or greater
|
Video bitrates (Kbits/s) |
Pixel sizes |
Audio bitrate (Kbits/s) / encoding |
Video codec |
Notes |
|---|---|---|---|---|
|
Below 1750 as SD |
|
|
|
|
|
2350 |
1280x720 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
H264 4.1 Main |
|
|
3000 |
1280x720 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
H264 4.1 Main |
|
|
4300 |
1920x1080 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
H264 4.1 Main |
|
|
5800 |
1920x1080 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
H264 4.1 Main |
|
UHD – 16:9 or greater
|
Video bitrates (Kbits/s) |
Pixel sizes |
Audio bitrate (Kbits/s) / encoding |
Video codec |
Notes |
|---|---|---|---|---|
|
64 |
N/A |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
N/A |
Audio only |
|
235 |
720x480 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 3.1 |
|
|
560 |
720x480 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 3.1 |
|
|
1050 |
720x480 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 3.1 |
|
|
1750 |
720x480 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 3.1 |
|
|
2350 |
1280x720 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 4.1 |
|
|
3000 |
1280x720 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 4.1 |
|
|
4300 |
1920x1080 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 4.1 |
|
|
5800 |
1920x1080 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 4.1 |
|
|
8000 |
3840×2160 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 5.1 |
|
|
10000 |
3840×2160 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 5.1 |
|
|
15000 |
3840×2160 |
64 HE-AAC Stereo or 300 E-AC-3 5.1 |
HEVC Main and Main 10 Profiles 5.1 |
|
Many Android Phones only support 3.1 – however that is only up to 720p. Android TV mandates 4.1, which supports 4K. OpenTV Player supports 5. 1 on IOS but not on Android.