Help Center/ Media Processing Center/ API Reference/ Transcoding Template Group APIs/ Querying Transcoding Template Groups

Updated on 2026-02-25 GMT+08:00

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Querying Transcoding Template Groups

Function

This API is used to query one or more custom transcoding template groups.

Calling Method

For details, see Calling APIs.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.

If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
mpc:templateGroup:view	Write	-	-	-	-

URI

GET /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.

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
group_id	No	Array of strings	ID of a transcoding template group. A maximum of 10 transcoding template group IDs can be queried at a time.
group_name	No	Array of strings	Name of a transcoding template group. A maximum of 10 transcoding template group names can be queried at a time.
page	No	Integer	Page number. If group_id is specified, this parameter is invalid. Default value: 0
size	No	Integer	Number of records on each page. Value range: [1,1000]. This parameter is invalid when group_id is specified.

Request Parameters

**Table 3** 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.

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
template_group_list	Array of TemplateGroup objects	Details about the template groups
total	Integer	Total number of transcoding template groups

**Table 5** TemplateGroup
Parameter	Type	Description
group_id	String	ID of each queried template group
name	String	Name of each queried template group
template_ids	Array of integers	IDs of templates in each queried template group
videos	Array of VideoAndTemplate objects	List of output video configurations
audio	Audio object	Audio information
video_common	VideoCommon object	Common video information
common	Common object	Common information

**Table 6** VideoAndTemplate
Parameter	Type	Description
template_id	Integer	Template ID
width	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	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	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.
stream_name	String	Stream name

**Table 7** Audio
Parameter	Type	Description
output_policy	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	Integer	Audio codec Possible options are: 1: AAC 2: HEAAC1 3: HEAAC2 4: MP3
sample_rate	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	Integer	Audio bitrate. The value is 0 or ranges from 8 to 1,000. Unit: kbit/s
channels	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 8** VideoCommon
Parameter	Type	Description
output_policy	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	Integer	Video codec Possible values: 1: H.264 2: H.265
profile	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	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	Integer	Encoding quality. The options include: 1: VIDEO_PRESET_SPEED (fast encoding) 3: VIDEO_PRESET_HIGHQUALITY (high-quality encoding). 4: VIDEO_PRESET_QUALITY (quality encoding). 5: VIDEO_PRESET_BALANCE (balanced encoding) The default value is 1.
max_iframes_interval	Integer	Maximum I-frame interval. The value ranges from 2 to 10. Default value: 5 Unit: second
bframes_count	Integer	Maximum B-frame interval. Range H.264: The value ranges from 0 to 8. The default value is 4. H.265: The value ranges from 0 to 7. The default value is 7. Unit: frame
frame_rate	Integer	Frame rate. The value is 0 (adaptive) or an integer ranging from 5 to 60. Unit: FPS
black_cut	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 9** Common
Parameter	Type	Description
PVC	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	Integer	HLS segment duration. This parameter is used only when pack_type is set to 1 or 3. Value range: [2,10] Unit: second
dash_interval	Integer	DASH segment duration. This parameter is used only when pack_type is set to 2 or 3. Value range: [2,10] Unit: second
pack_type	Integer	Container format. The options include: 1: HLS 2: DASH 3: HLS+DASH 4: MP4 5: MP3 6: ADTS 8: MOV 9: FLV 10: AVI NOTE: If pack_type is set to 5 or 6, do not configure video parameters. If pack_type is set to 9, multi-audio is not supported. If pack_type is set to 10, H.265 encoding is not supported.

Status code: 403

**Table 10** Response body parameters
Parameter	Type	Description
error_code	String	Error code
error_msg	String	Error description

Example Requests

GET https://{endpoint}/v1/{project_id}/template_group/transcodings?page=0&size=10

Example Responses

Status code: 200

Transcoding template group queried successfully.

{
  "total" : 1,
  "template_group_list" : [ {
    "group_id" : "397565a34913415c91955254add0461a",
    "name" : "test_templageGroup",
    "template_ids" : [ 276195 ],
    "videos" : [ {
      "template_id" : 276195,
      "width" : 854,
      "height" : 480,
      "bitrate" : 500
    } ],
    "audio" : {
      "output_policy" : "transcode",
      "codec" : 1,
      "bitrate" : 0,
      "sample_rate" : 1,
      "channels" : 2
    },
    "video_common" : {
      "output_policy" : "transcode",
      "codec" : 1,
      "profile" : 3,
      "level" : 15,
      "preset" : 3,
      "max_iframes_interval" : 5,
      "bframes_count" : 4,
      "frame_rate" : 0,
      "black_cut" : 0
    },
    "common" : {
      "PVC" : false,
      "hls_interval" : 5,
      "dash_interval" : 5,
      "pack_type" : 4
    }
  } ]
}

Status code: 403

Failed to query the transcoding template group.

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

Status Codes

Status Code	Description
200	Transcoding template group queried successfully.
403	Failed to query the transcoding template group.

Error Codes

See Error Codes.

Parent Topic: Transcoding Template Group APIs

Previous topic: Creating a Transcoding Template Group

Next topic: Modifying a Transcoding Template Group

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