Application Name |
The transcoding template takes effect only when the value of this parameter is the
same as the application name that is specified in the ingest URL. |
Template Type |
Valid values: Standard, Narrowband HD™, Original Quality Template, and Audio Only.
Standard transcoding templates and Narrowband HD™ transcoding templates vary in transcoding
quality and performance, and are charged at different prices. Original quality templates
do not modify the configuration of videos. Audio-only transcoding templates remove
the video of the input stream and generate an audio-only stream in the Opus format.
|
Resolution |
The resolution of the output stream. Unit: pixels. Different types of resolutions
correspond to different prices. The following types of resolutions are supported:
- Low definition (LD): 640 × 480 and lower
- Standard definition (SD): 1280 × 720 and lower
- High definition (HD): 1920 × 1080 and lower
- 2K: 2560 × 1440 and lower
- 4K: 3840 × 2160 and lower
Note Custom transcoding is charged based on the resolutions, not the template IDs for standard
templates and Narrowband HD™ templates of default transcoding. The resolutions include
LD, SD, HD, 2K, and 4K. The template IDs for standard templates include lld, lsd,
lhd, and lud. The template IDs for Narrowband HD™ templates include ld, sd, hd, and
ud.
The resolution of an output stream is determined based on the range where the long
side and short side of the video image fall.
For example, to determine whether the resolution of an output stream is 1280 × 720,
which is SD:
- If the long side of the video image contains no more than 1,280 pixels and the short
side of the video image contains no more than 720 pixels, the resolution of the output
stream is SD.
- If the long side of the video image contains more than 1,280 pixels, or the short
side of the video image contains more than 720 pixels, the resolution of the output
stream is higher than SD.
|
Video Bitrate |
The bitrate that corresponds to the resolution. Unit: Kbit/s. The following types
of resolutions correspond to different bitrate ranges:
- LD: 100–800 Kbit/s
- SD: 200–1,500 Kbit/s
- HD: 500–4,000 Kbit/s
- 2K: 2,000–8,000 Kbit/s
- 4K: 4,000–30,000 Kbit/s
|
Video Frame Rate |
The frame rate of the output stream. The frame rate of the output stream must be smaller
than or equal to the frame rate of the input stream.
|
Video GOP |
The group of pictures (GOP) indicates the interval between two I-frames. The GOP of
the output stream must be smaller than or equal to the GOP of the input stream. To
ensure low latency, the GOP of the output stream cannot exceed 3 seconds.
|
B-frame Removal |
If you turn on B-frame Removal, the output stream contains no B-frames. |
Opus Transcoding |
If you turn on Opus Transcoding, the output audio stream is encoded in the Opus format
with a sampling rate of 48 kHz.
|
Trigger Transcoding |
- If you turn on Trigger Transcoding, transcoding is triggered only when a stream is
pulled for the first time.
- If you turn off Trigger Transcoding, transcoding is triggered whenever a stream is
ingested, no matter whether the stream is pulled.
|
Settings ID |
The ID of the transcoding template.
The value of the Settings ID parameter is used to construct a URL for a live stream that requires transcoding.
For more information about how to construct a URL, see Ingest URL and Streaming URLs. You can append the template ID to the streaming URL to watch the transcoded stream
with the specified resolution.
Notice The template ID must be different from default transcoding template IDs. The default
transcoding template IDs include lld, lsd, lhd, lud, ld, sd, hd, and ud.
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