Core Code

1. Create MPC configuration items.
   These configuration items are used for MPC to obtain authorization. Table 1 describes the parameters.

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   MpcConfig mpcConfig = new MpcConfig(); mpcConfig.setEndPoint(endPoint);// Set the endpoint. mpcConfig.setProjectId(projectId);// Set the project ID. mpcConfig.setSk(sk);// Set the SK. mpcConfig.setAk(ak);// Set the AK.

   Table 1 MPC parameters

   Parameter	Type	Description
   endPoint	String	Endpoint. The endpoint of MPC is mts.cn-north-4.myhuaweicloud.com. Replace cn-north-4 with the value of region in the address box of the browser after you select MPC on the management console.
   ProjectId	String	Project ID. For details, see Obtaining a Project ID and Account Name.
   ak	String	Access key ID (AK). For details, see Obtaining the AK/SK Pair.
   sk	String	Secret Access Key (SK) used together with the AK. For details, see Obtaining the AK/SK Pair.

2. Create an MpcClient instance.

   If no proxy server is configured, you can directly create an MpcClient instance.

   1 2	// Create an MpcClient instance. MpcClient mpcClient = new MpcClient(mpcConfig);

   If a proxy server needs to be configured, set proxy parameters and then transfer the proxy as a constructor to the MpcClient instance.

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   // Configure the proxy. ClientConfig clientConfig = new ClientConfig(); clientConfig.setProxyHost(proxyHost);// Set the IP address of the proxy server. clientConfig.setProxyPort(Integer.parseInt(proxyPort));// Set the port number of the proxy server. clientConfig.setProxyUserName(proxyUserName);// Set the username for accessing the proxy server. clientConfig.setProxyPassword(proxyPassword);// Set the password for accessing the proxy server. // Use the constructor to initialize MpcClient. MpcClient mpcClient =new MpcClient(mpcConfig, clientConfig);

3. Send a request.

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   // Set request parameters. TransTemplate transTemplate=new TransTemplate(); // Set the template name. transTemplate.setTemplateName("MP4_12222ddd2122"); // Set the template ID. transTemplate.setTenantId("123456");

4. // Set template parameters.
   1. Video parameters

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      TransTemplate.VideoBean videoBean=new TransTemplate.VideoBean(); // Set the video codec. 1 is H.264 and 2 is H.265. videoBean.setCodec(1); // Set the average output bitrate (unit: kbit/s). The value is 0 or an integer ranging from 40 to 30,000. If this is 0, the average output bit rate is an adaptive value. videoBean.setBitrate(6000); /* * Encoding profile * H264_BASE = 1, * H264_MAIN = 2, * H264_HIGH = 3, * H265_MAIN = 4, */ // Set the encoding profile. The recommended value is 3. videoBean.setProfile(3); // Set the encoding level. The value ranges from 1 to 15. The default value is 15. videoBean.setLevel(15); /* * Coding quality level (RMS range) * HSPEED2 = 1,(only for h.265, h.265 default) * HSPEED = 2,(only for h.265) * NORMAL = 3,(h264 / h.265 available, h.264 default) */ // Set the encoding quality. videoBean.setPreset(3); // Set the maximum number of reference frames (unit: frame). For H.264, the value ranges from 1 to 8. The default value is 4. For H.265, the value is fixed at 4. videoBean.setRefFramesCount(4); // Set the maximum I-frame interval (unit: second). The value ranges from 2 to 5. The default value is 5. videoBean.setMaxIframesInterval(5); // Set the maximum B-frame interval (unit: frame). The value ranges from 0 to 8 for H.264 and is 4 by default. The value is fixed at 7 for H.265. videoBean.setbramesCount(4); // Set the frame rate (unit: FPS). The value is 0 or an integer ranging from 5 to 30. If the frame rate is not in this range, the frame rate is automatically changed to 0. If you configure a frame rate higher than the frame rate of your input file, the frame rate is automatically changed to the frame rate of the input file. videoBean.setFrameRate(0); /* * Set the video width (unit: pixel). * H.264: The value is 0 or a multiple of 2 from 32 to 4,096. * H.265: The value must be a multiple of 2 from 160 to 4,096. */ videoBean.setWidth(1920); /* * Set the video height (unit: pixel). * H.264: The value is 0 or a multiple of 2 from 32 to 2,880. * H.265: The value is 0 or a multiple of 2 from 96 to 2,880. * If this parameter is set to 0, the video height is an adaptive value. */ videoBean.setHeight(1080); /* * Whether to enable black bar removal * 0: Disable black bar removal. * 1: Enable black bar removal and low-complexity algorithms for long videos (>5 minutes). * 2: Enable black bar removal and high-complexity algorithms for short videos (≤5 minutes). */ // Set whether to enable black bar removal. The default value is 0. videoBean.setBlackCut(0); // Set video parameters. transTemplate.setVideo(videoBean);

   2. Audio parameters

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      // Set audio parameters. TransTemplate.AudioBean audioBean=new TransTemplate.AudioBean(); /* * Audio bitrate, in kbit/s. * The value is 0 or ranges from 8 to 1,000. */ audioBean.setBitrate(128); /* * Number of audio channels * AUDIO_CHANNELS_1=1, * AUDIO_CHANNELS_2=2, */ audioBean.setChannels(2); /* * Audio codec * AAC : 1 (default) * HEAAC1 : 2 * HEAAC2 : 3 * MP3 : 4 */ audioBean.setCodec(1); /* * Audio sampling rate * AUDIO_SAMPLE_AUTO=1 (default) * AUDIO_SAMPLE_22050=2, * AUDIO_SAMPLE_32000=3, * AUDIO_SAMPLE_44100=4, * AUDIO_SAMPLE_48000=5, * AUDIO_SAMPLE_96000=6, */ audioBean.setSampleRate(4); // Set audio parameters. transTemplate.setAudio(audioBean);

   3. Common parameters

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      // Set common parameters. TransTemplate.CommonBean commonBean=new TransTemplate.CommonBean(); /* * DASH interval, in seconds * The value ranges from 2 to 10. The default value is 5. */ commonBean.setDashInterval(5); /* * HLS segment interval, in seconds * The value ranges from 2 to 10. The default value is 5. */ commonBean.setHlsInterval(5); /* * Packaging type. * Available options: * 1: HLS * 2: DASH * 3: HLS+DASH * 4: MP4 * 5: MP3 * 6: ADTS * If pack_type is set to 5 or 6, do not set video parameters. */ commonBean.setPackType(1); /* * Whether to enable low bitrate HD * false: disabled (default) * true: enabled */ commonBean.setPvc(false); // Set common parameters. transTemplate.setCommon(commonBean);

5. Send a request for modifying a transcoding template and return a message.

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   // Send a request. BaseResponse baseResponse = mpcClient.modifyTemplate(transTemplate); // Return a message. System.out.println(new Gson().toJson(baseResponse));

Sample Code

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/*
* Service process:
* 1. Import the SDK package MPCSDK.jar.
* 2. Set configuration items, including the endpoint, AK, SK, and project ID, for accessing MPC and authorization.
* 3. Set request parameters for modifying a transcoding template, including the video and audio parameters.
* 4. Send a request.
* 5. Return the result.
*/
import com.google.gson.Gson;
import com.huawei.mpc.client.ClientConfig;
import com.huawei.mpc.client.MpcClient;
import com.huawei.mpc.client.MpcConfig;
import com.huawei.mpc.model.BaseResponse;
import com.huawei.mpc.model.template.TransTemplate;


// Set the method for constructing MPC configuration items.
MpcConfig mpcconfig = new MpcConfig();

// Mandatory. Set the endpoint of MPC. For details, see section "Obtaining Key Parameters."
mpcConfig.setEndPoint(endPoint);
// Mandatory. Set the user's project ID. For details, see section "Obtaining Key Parameters."
mpcConfig.setProjectId(projectId);

// Mandatory. Set the SK. For details, see section "Obtaining Key Parameters."
mpcConfig.setSk(sk);

// Mandatory. Set the AK. For details, see section "Obtaining Key Parameters."
mpcConfig.setAk(ak);
       
/*if you need proxy*/
// Optional. Set the proxy if necessary.
/*
ClientConfig clientConfig = new ClientConfig();
// Set the IP address of the proxy server.
clientConfig.setProxyHost(proxyHost);
// Set the port number of the proxy server.
clientConfig.setProxyPort(Integer.parseInt(proxyPort));
// Set the username for accessing the proxy server.
clientConfig.setProxyUserName(proxyUserName);
// Set the password for accessing the proxy server.
clientConfig.setProxyPassword(proxyPassword);
*/


// MPC construction method
MpcClient mpcClient = new MpcClient(mpcconfig);
// Set template parameters.
TransTemplate transTemplate=new TransTemplate();

/*
* Transcoding template name(Length <= 256)
*/
// Set the transcoding template name.
transTemplate.setTemplateName("MP4_12222ddd2122");

/*
* Transcoding template id(Integer type)
*/
// Set the transcoding template ID.
transTemplate.setTemplateId(551);

/*VideoBean*/
// Set video parameters.
TransTemplate.VideoBean videoBean=new TransTemplate.VideoBean();

/*
* Video encoding format (RMS range) [1,2] The default 1
* H264 = 1,H265 = 2
*/
// Set the video codec.
videoBean.setCodec(1);

/*
* Video Bit rate is within [40,30000]
*/
// Set the average output bitrate (unit: kbit/s).
videoBean.setBitrate(6000);

/*
* Coding grade (RMS range)
* H264_BASE = 1,
* H264_MAIN = 2,
* H264_HIGH = 3,
* H265_MAIN = 4,
*/
// Set the encoding profile.
videoBean.setProfile(3);

/*
* The encoding level (Valid Range) [1,15], default 15
*/
// Set the encoding level.
videoBean.setLevel(15);

/*
* Coding quality level (RMS range)
* HSPEED2 = 1,(only for h.265, h.265 default)
* HSPEED = 2,(only for h.265)
* NORMAL = 3,(h264 / h.265 available, h.264 default)
*/
// Set the encoding quality.
videoBean.setPreset(3);

/*
* Maximum reference frame number (unit: frame)
* H264: Range [1,8], default 4
* H265: fixed value 4
*/
// Set the maximum number of reference frames (unit: frame).
videoBean.setRefFramesCount(4);

/*
* I frame maximum interval (unit: second)
* Range [2,5], default: 5
*/
// Set the maximum I-frame interval (unit: second).
videoBean.setMaxIFramesInterval(5);

/*
* Maximum B frame interval (unit: frame)
* H264: Range [0,8], default 4
* H265: fixed value 7
*/
// Set the maximum B-frame interval (unit: frame).
videoBean.setbFramesCount(4);

/*
* Frame rate (unit: frame per second) (Valid range)
* FRAMERATE_AUTO = 1,
* FRAMERATE_10 = 2,
* FRAMERATE_15 = 3,
* FRAMERATE_2397 = 4, // 23.97 fps
* FRAMERATE_24 = 5,
* FRAMERATE_25 = 6,
* FRAMERATE_2997 = 7, // 29.97 fps
* FRAMERATE_30 = 8,
* FRAMERATE_50 = 9,
* FRAMERATE_60 = 10
*/
// Set the frame rate (unit: FPS).
videoBean.setFrameRate(1);

/*
* Video width (in pixels)
* H264: Range [32,4096], must be a multiple of 2
* H265: Range [160,4096], must be a multiple of 4
*/
// Set the video width (unit: pixel).
videoBean.setWidth(1920);

/*
* Video height (in pixels)
* H264: Range [32,2880], must be a multiple of 2
* H265: Range [96,2880], must be a multiple of 4
*/
// Set the video height (unit: pixel).
videoBean.setHeight(1080);

/*AudioBean*/
// Set audio parameters.
TransTemplate.AudioBean audioBean=new TransTemplate.AudioBean();

/*
* Audio Bit rate is within [64,320]
*/
// Set the audio bitrate (unit: kbit/s).
audioBean.setBitrate(128);

/*
* The number of channels (RMS range) is 1 or 2
*/
// Set the number of audio channels.
audioBean.setChannels(2);

/*
* Audio encoding format (RMS range) defaults to 1 Optional 2 or 3
*/
// Set the audio codec.
audioBean.setCodec(1);

/*
* Audio sampling rate (RMS range) Default is 1 Optional 2,3,4,5,6
*/
// Set the audio sampling rate.
audioBean.setSampleRate(4);

/*CommonBean*/
// Set common parameters.
TransTemplate.CommonBean commonBean=new TransTemplate.CommonBean();

/*
* DASH interval (in seconds)
* Range: [2,10], default 5
*/
// Set the DASH interval (unit: second).
commonBean.setDashInterval(5);

/*
* HLS shading interval (in seconds)
* Range: [2,10], default 5
*/
// Set the HLS segment interval (unit: second).
commonBean.setHlsInterval(5);

/*
* Package Type (DASH + MP4, HLS + TS, MP4)
* Bitmap to describe the package format, each bit represents a package format,currently supports two:
* 1 means DASH + MP4 format
* 2 indicates HLS + TS format
* 3 means HLS + TS and DASH + MP4 format
* 4 means MP4 format (note that here refers to MP4 is a video and audio Segment MP4 large files
*/
// Set the packaging type.
commonBean.setPackType(1);

/*
* PVC switch
* false: off (the current default off),true: open
*/
// Set whether to enable low bitrate HD.
commonBean.setPvc(false);

/*
* QDS switch
* false: off (the current default off),true: open
*/
// QDS switch
commonBean.setQds(false);

// Set video parameters.
transTemplate.setVideo(videoBean);
// Set audio parameters.
transTemplate.setAudio(audioBean);
// Set common parameters.
transTemplate.setCommon(commonBean);

// Send a request.
BaseResponse baseResponse = mpcClient.modifyTemplate(transTemplate);
// Return a message.
System.out.println(new Gson().toJson(baseResponse));