Updated on 2024-03-14 GMT+08:00

Modifying a Transcoding Template Group

Function

This API is used to modify a custom transcoding template group.

Calling Method

For details, see Calling APIs.

URI

PUT /v1/{project_id}/template_group/transcodings

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID. For details about how to obtain the project ID, see Obtaining a Project ID .

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

No

String

User token

The token can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token.

Authorization

No

String

Authentication information. This parameter is mandatory when AK/SK-based authentication is used.

X-Project_Id

No

String

Project ID. This parameter is mandatory when AK/SK-based authentication is used. It is same as the project ID in path parameters.

X-Sdk-Date

No

String

Time when the request is sent. This parameter is mandatory when AK/SK-based authentication is used.

Table 3 Request body parameters

Parameter

Mandatory

Type

Description

group_id

Yes

String

ID of a template group

name

No

String

Name of the template group

videos

No

Array of VideoObj objects

List of output video configurations

audio

No

Audio object

Audio information

video_common

No

VideoCommon object

Common video information

common

No

Common object

Common information

Table 4 VideoObj

Parameter

Mandatory

Type

Description

width

Yes

Integer

Video width, in pixels

  • H.264: The value is a multiple of 2 from 32 to 4,096.

  • H.265: The value is a multiple of 2 from 320 to 4,096.

height

Yes

Integer

Video height, in pixels

  • H.264: The value is a multiple of 2 from 32 to 2,880.

  • H.265: The value is a multiple of 2 from 240 to 2,880.

bitrate

Yes

Integer

Average output bitrate

Its value is 0 or an integer ranging from 40 to 30,000.

Unit: kbit/s

If this parameter is set to 0, the average output bitrate is an adaptive value.

Table 5 Audio

Parameter

Mandatory

Type

Description

output_policy

No

String

Output policy:

  • If output_policy is set to discard in video parameters and transcode in audio parameters, only audio is output.

  • If output_policy is set to transcode in video parameters and to discard in audio parameters, only video is output.

  • If output_policy is set to copy in video parameters, the original video is copied without codec.

  • If output_policy is set to copy in audio parameters, the original audio is copied without codec.

  • output_policy cannot be set to discard in video and audio parameters at the same time.

  • If output_policy is set to transcode in video and video parameters at the same time, video and audio are output.

The options are as follows:

  • discard

  • transcode

  • copy

codec

No

Integer

Audio codec

Possible options are:

  • 1: AAC

  • 2: HEAAC1

  • 3: HEAAC2

  • 4: MP3

sample_rate

No

Integer

Audio sampling rate

The options are as follows:

  • 1: AUDIO_SAMPLE_AUTO

  • 2: AUDIO_SAMPLE_22050 (22,050 Hz)

  • 3: AUDIO_SAMPLE_32000 (32,000 Hz)

  • 4: AUDIO_SAMPLE_44100 (44,100 Hz)

  • 5: AUDIO_SAMPLE_48000 (48,000 Hz)

  • 6: AUDIO_SAMPLE_96000 (96,000 Hz)

NOTE:

When the encoding format is MP3, the audio sampling ratio cannot be 6.

bitrate

No

Integer

Audio bitrate.

The value is 0 or ranges from 8 to 1,000.

Unit: kbit/s

channels

Yes

Integer

Number of audio channels

Options:

  • 1: AUDIO_CHANNELS_1 (mono)

  • 2: AUDIO_CHANNELS_2 (stereo)

  • 6: AUDIO_CHANNELS_5_1 (5.1 surround sound)

When the media packaging format is audio (MP3), the number of audio channels cannot be set to 5.1.

Table 6 VideoCommon

Parameter

Mandatory

Type

Description

output_policy

No

String

Output policy:

  • If output_policy is set to discard in video parameters and transcode in audio parameters, only audio is output.

  • If output_policy is set to transcode in video parameters and to discard in audio parameters, only video is output.

  • If output_policy is set to copy in video parameters, the original video is copied without codec.

  • If output_policy is set to copy in audio parameters, the original audio is copied without codec.

  • output_policy cannot be set to discard in video and audio parameters at the same time.

  • If output_policy is set to transcode in video and video parameters at the same time, video and audio are output.

The options are as follows:

  • discard

  • transcode

  • copy

codec

No

Integer

Video codec

Possible values:

  • 1: H.264

  • 2: H.265

profile

No

Integer

Encoding profile. The recommended value is 3.

Possible options are:

  • 1: VIDEO_PROFILE_H264_BASE

  • 2: VIDEO_PROFILE_H264_MAIN

  • 3: VIDEO_PROFILE_H264_HIGH

  • 4: VIDEO_PROFILE_H265_MAIN

level

No

Integer

Encoding level

Options:

  • 0: AUTO

  • 1: VIDEO_LEVEL_1_0

  • 2: VIDEO_LEVEL_1_1

  • 3: VIDEO_LEVEL_1_2

  • 4: VIDEO_LEVEL_1_3

  • 5: VIDEO_LEVEL_2_0

  • 6: VIDEO_LEVEL_2_1

  • 7: VIDEO_LEVEL_2_2

  • 8: VIDEO_LEVEL_3_0

  • 9: VIDEO_LEVEL_3_1

  • 10: VIDEO_LEVEL_3_2

  • 11: VIDEO_LEVEL_4_0

  • 12: VIDEO_LEVEL_4_1

  • 13: VIDEO_LEVEL_4_2

  • 14: VIDEO_LEVEL_5_0

  • 15: VIDEO_LEVEL_5_1

preset

No

Integer

Encoding quality.

Possible options:

  • 1: VIDEO_PRESET_SPEED (fast encoding)

  • 2: VIDEO_PRESET_NORMAL (common encoding), which is not recommended

  • 3: VIDEO_PRESET_HIGHQUALITY (high-quality encoding)

Default value: 1

max_iframes_interval

No

Integer

Maximum I-frame interval.

The value ranges from 2 to 10.

Default value: 5

Unit: second

bframes_count

No

Integer

Maximum B-frame interval

The options are as follows:

  • H264: The value ranges from 0 to 8 and defaults to 4.

  • H.265: The value ranges from 0 to 8 and defaults to 7.

Unit: frame

frame_rate

No

Integer

Frame rate.

The value is 0 (adaptive) or an integer ranging from 5 to 60.

Unit: FPS

black_cut

No

Integer

Whether to enable black bar removal.

  • 0: disables black bar removal

  • 1: enables black bar removal and low-complexity algorithms for videos longer than 5 minutes

  • 2: enables black bar removal and high-complexity algorithms for videos no longer than 5 minutes

Table 7 Common

Parameter

Mandatory

Type

Description

PVC

No

Boolean

Whether to enable low-bitrate HD

The options are as follows:

  • false: disabled (This function is disabled by default.)

  • true: enabled

(The value 0 indicates that the function is disabled. Other positive integers and negative values indicate true.)

hls_interval

No

Integer

HLS segment duration. This parameter is used only when pack_type is set to 1 or 3.

The value ranges from 2 to 10.

Unit: second

dash_interval

No

Integer

DASH segment duration. This parameter is used only when pack_type is set to 2 or 3.

The value ranges from 2 to 10.

Unit: second

pack_type

Yes

Integer

Packaging type

Possible options are:

  • 1: HLS

  • 2: DASH

  • 3: HLS+DASH

  • 4: MP4

  • 5: MP3

  • 6: ADTS

NOTE:

If pack_type is set to 5 or 6, do not configure video parameters.

Response Parameters

Status code: 400

Table 8 Response body parameters

Parameter

Type

Description

error_code

String

Error code

error_msg

String

Error description

Example Requests

Updates a transcoding template group.

PUT https://{endpoint}/v1/{project_id}/template_group/transcodings

{
  "group_id" : "bd55741ccdf04e678f800c010aa12b68",
  "name" : "test_group",
  "videos" : [ {
    "width" : 480,
    "height" : 270,
    "bitrate" : 200
  }, {
    "width" : "1280",
    "height" : "720",
    "bitrate" : "700"
  } ],
  "audio" : {
    "codec" : 1,
    "sample_rate" : 1,
    "channels" : 2,
    "bitrate" : 0
  },
  "video_common" : {
    "codec" : 1,
    "black_cut" : 0,
    "profile" : 3,
    "level" : 15,
    "preset" : 3,
    "max_iframes_interval" : 5,
    "bframes_count" : 4,
    "frame_rate" : 0
  },
  "common" : {
    "PVC" : false,
    "pack_type" : 1,
    "hls_interval" : 5,
    "dash_interval" : 5
  }
}

Example Responses

Status code: 400

Failed to modify the transcoding template group.

{
  "error_code" : "MPC.10212",
  "error_msg" : "Operation failed."
}

Status Codes

Status Code

Description

204

Transcoding template group modified successfully.

400

Failed to modify the transcoding template group.

Error Codes

See Error Codes.