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

Updated on 2023-12-25 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.

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	ID of a transcoding template group. A maximum of 10 transcoding template group IDs can be queried at a time.
group_name	No	Array	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. This parameter is unavailable if group_id is specified. The default value is 10. The value ranges from 1 to 100.

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.

**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. 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	Integer	Maximum I-frame interval. The value ranges from 2 to 10. Default value: 5 Unit: second
bframes_count	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	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. The value ranges from 2 to 10. Unit: second
dash_interval	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	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.

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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