Overview

If the Preset in the system cannot meet the user's requirements, the user can custom their own Preset. Use different interfaces to create Preset according to different coding requirements.

Create Customized Transcoding Presets

1.Log in MCT Console.

2.Select Product Configurations->Transcoding Presets in the left navigation bar , enter the transcoding Preset page.

3.Click Create Transcoding Presets, and enter “Create A Transcoding Preset” page.

4.The user fills the corresponding configuration information according to the demands:

Parameter	Description
Preset name	The beginning must be lowercase, and the rest can consist of lowercase or numbers, with a maximum of no more than 40 characters.
Audio/video format	Assign the AV container. MP4 is the common video container; FLV is the FLASH video container; HLS is the streaming media video container; A-HLS is the self-adaptive code rate HLS; MP3 is the MP3 audio container; M4A is the MPEG4 audio container.
Preset description	(Optional) input the Preset description.
Sample Preset	You can select a sample Preset, please refer to the existing parameter to create the Preset.
Video parameters	Disable the video: When only extracting audio from the video, “Disable the Video” can be activated. Coding standard: H.264 is a type of high compression ratio video coding format, which provides low code rate, continuous and fluent high quality images, and it is equipped with strong fault-tolerant ability and network adaptability. BD265 is an encoder independently developed by Baidu. Encoding specifications: Assign the coding specification of the object video, you can select from Baseline, Main or High; when playing in the meddle-end and high-end devices (Web, iPhone4/Android3.0 or above), High/Main is recommended; low-end embedded devices are suggested to use Baseline. Transcoding mode: Select normal or twopass. Maximum code rate: Assign the video code rate, with the unit of kbps; common video code rate, low-definition: 200 kbps；Standard definition: 600 kbps；High definition: 1200 kbps。 If the assigned code rate is higher than the code rate of the original video, use the code rate of the original video. Constant quality factor: If crf value is set, the maximum code rate represents the maximum target code rate. Maximum frame per second: Assign the video frame rate and the frame number displayed every second, with the common frame rate of 24, 25 or 30; Auto means to be the same as input; if the assigned frame rate is higher than the frame rate of the original video, the frame rate of the original video is used. Maximum size: Specify the resolution ratio of the target video, which is the same as input by default; if the specified resolution ratio is greater than the resolution ratio of the original video, the resolution ratio of the original video is used. Scaling policy: The size shrinking strategies of certain videos, including Keep, ShrinkToFit and Stretch. Keep： Keep the input size proportion；ShrinkToFit： Self-adaptive shrinking, which should be filled with black border as required; Stretch, stretching the original video size. Self-adaptively horizontal and vertical Presets: When the original video is in vertical, the width of the Preset is adjusted to be less than the height automatically to ensure the minimum zoom ratio, and vice versa.
Audio parameters	Disable the audio: When extracting videos only from the video, “Disable Audio” can be enabled. Coding standard: Assign the audio coding standard, AAC or MP3, which correlates the audio/video container. Sampling rate: Auto means to keep the same as input. Code rate: Commonly used code rate: 40 kbps, 80 kbps, 128 kbps, 192 kbps, etc.; if the assigned code rate is higher than the input code rate, the input code rate should be used. Sound channel Assign the audio track number, and the common value is 1 or 2; Auto means to keep the same as input, and if the assigned tack number is more than the input number, use the input track number. Audio normalization: Whether to normalize the audio. Mute: Select to mute the audio.
Advanced parameters	Automatic opening black frame removing: Automatically recognize and remove the opening black frames. Automatic removal of black edge: Automatically recognize the black border region and remove the black border. Automatic watermark removing: Automatically recognize and remove the watermarks. Start time for editing: Support to clip the video according to time dimension, and specify the start time of clipping. Duration time: The duration of video clipping defaults to all videos. Watermark configuration: Video is added with watermarks. Key policy: For the secret key achievement strategy after encrypting the video, please refer to Copyright Protection.

5.Click Create Now to complete customized transcoding Preset creation.

System Built-in Preset

The common transcoding Preset is shown in the following:

Preset name	Preset description
mct.video_mp4_3840x2160_6000kbps	MP4-4K
mct.video_mp4_2048x1152_5000kbps	MP4-2K
mct.video_mp4_1920x1080_3800kbps	MP4-Full HD
mct.video_mp4_1280x720_2000kbps	MP4-High definition
mct.video_mp4_854x480_1000kbps	MP4-Standard definition
mct.video_mp4_640x360_600kbps	MP4-Fluency
mct.video_mp4_320x180_300kbps	MP4-XLD
mct.video_mp4_transmux	Remuxing-MP4
mct.video_flv_3840x2160_6000kbps	FLV-4K
mct.video_flv_2048x1152_5000kbps	FLV-2K
mct.video_flv_1920x1080_3800kbps	FLV-Full HD
mct.video_flv_1280x720_2000kbps	FLV-High definition
mct.video_flv_854x480_1000kbps	FLV-Standard definition
mct.video_flv_640x360_600kbps	FLV-Fluency
mct.video_flv_320x180_300kbps	FLV-XLD
mct.video_flv_transmux	Remuxing-FLV
mct.video_hls_3840x2160_6000kbps	hls-4K
mct.video_hls_2048x1152_5000kbps	hls-2K
mct.video_hls_1920x1080_3800kbps	hls-Full HD
mct.video_hls_1280x720_2000kbps	hls-High definition
mct.video_hls_848x477_1000kbps	hls-Standard definition
mct.video_hls_640x360_600kbps	hls-Fluency
mct.video_hls_320x180_300kbps	hls-XLD
mct.video_hls_transmux	Remuxing-hls
mct.audio_mp3_320kbps	Mp3-320
mct.audio_mp3_192kbps	MP3-192
mct.audio_mp3_160kbps	MP3-160
mct.audio_mp3_128kbps	MP3-128
mct.audio_mp3_64kbps	MP3-64

Please see below for the transcoding Preset of Intelligent sense and super-definition 1.0:

Preset name	Preset description
mct.video_mp4_4k_cae1	MP4-4K-intelligent super-definition
mct.video_mp4_2k_cae1	MP4-2K-intelligent super-definition
mct.video_mp4_1080p_cae1	MP4-Full HD-AI full-HD
mct.video_mp4_480p_cae1	MP4-SD-AI Full-HD
mct.video_mp4_360p_cae1	MP4-Smoothness - Intelligent sense and super definition 1.0
mct.video_mp4_720p_cae1	MP4-HD-AI Full-HD
mct.video_flv_4k_cae1	FLV-4K-intelligent super-definition
mct.video_flv_2k_cae1	FLV-2K-intelligent super-definition
mct.video_flv_1080p_cae1	FLV-Full HD-AI full-HD
mct.video_flv_720p_cae1	FLV-HD-AI Full-HD
mct.video_flv_480p_cae1	FLV-SD-AI Full-HD
mct.video_flv_360p_cae1	FLV-Smoothness - Intelligent sense and super definition 1.0
mct.video_hls_4k_cae1	hls-4K-intelligent super-definition
mct.video_hls_2k_cae1	hls-2K-intelligent super-definition
mct.video_hls_1080p_cae1	hls-Full HD-AI full-HD
mct.video_hls_720p_cae1	hls-HD-AI Full-HD
mct.video_hls_480p_cae1	hls-SD-AI Full-HD
mct.video_hls_360p_cae1	hls-Smoothness - Intelligent sense and super definition 1.0

Please see below for the transcoding Preset of Intelligent sense and super-definition 2.0:

Preset name	Preset description
mct.video_mp4_1080p_cae2	MP4-Full HD-AI full-HD2.0
mct.video_mp4_480p_cae2	MP4-SD-AI Full-HD2.0
mct.video_mp4_360p_cae2	MP4-Smoothness - Intelligent sense and super definition 1.02.0
mct.video_mp4_720p_cae2	MP4-HD-AI Full-HD2.0

Super resolution:

Preset name	Preset description
mct.2Kto4K	MP4-2K transfers to 4K
mct.LDtoFHD	MP4-SD transfers to HD

Related API and SDK

• Use API to create the preset :

  • Create Preset

• Use SDK to create the preset:

  • Java SDK
  • Python SDK