MediaConvert 使用示例 Amazon SDK for .NET

using Amazon.MediaConvert;
using Amazon.MediaConvert.Model;

namespace MediaConvertActions;

public static class HelloMediaConvert
{
    static async Task Main(string[] args)
    {
        // Create the client using the default profile.
        var mediaConvertClient = new AmazonMediaConvertClient();

        Console.WriteLine($"Hello AWS Elemental MediaConvert! Your MediaConvert Jobs are:");
        Console.WriteLine();

        // You can use await and any of the async methods to get a response.
        // Let's get some MediaConvert jobs.
        var response = await mediaConvertClient.ListJobsAsync(
            new ListJobsRequest()
            {
                MaxResults = 10
            }
            );

        foreach (var job in response.Jobs)
        {
            Console.WriteLine($"\tJob: {job.Id} status {job.Status}");
            Console.WriteLine();
        }
    }
}

设置文件位置、客户端和包装器。

        // MediaConvert role Amazon Resource Name (ARN).
        // For information on creating this role, see
        // https://docs.aws.amazon.com/mediaconvert/latest/ug/creating-the-iam-role-in-mediaconvert-configured.html.
        var mediaConvertRole = _configuration["mediaConvertRoleARN"];

        // Include the file input and output locations in settings.json or settings.local.json.
        var fileInput = _configuration["fileInput"];
        var fileOutput = _configuration["fileOutput"];

        AmazonMediaConvertClient mcClient = new AmazonMediaConvertClient();

        var wrapper = new MediaConvertWrapper(mcClient);

        Console.WriteLine(new string('-', 80));
        Console.WriteLine($"Creating job for input file {fileInput}.");
        var jobId = await wrapper.CreateJob(mediaConvertRole!, fileInput!, fileOutput!);
        Console.WriteLine($"Created job with Job ID: {jobId}");
        Console.WriteLine(new string('-', 80));

使用包装程序方法创建任务并返回任务 ID。

    /// <summary>
    /// Create a job to convert a media file.
    /// </summary>
    /// <param name="mediaConvertRole">The Amazon Resource Name (ARN) of the media convert role, as specified here:
    /// https://docs.aws.amazon.com/mediaconvert/latest/ug/creating-the-iam-role-in-mediaconvert-configured.html</param>
    /// <param name="fileInput">The Amazon Simple Storage Service (Amazon S3) location of the input media file.</param>
    /// <param name="fileOutput">The Amazon S3 location for the output media file.</param>
    /// <returns>The ID of the new job.</returns>
    public async Task<string> CreateJob(string mediaConvertRole, string fileInput,
        string fileOutput)
    {
        CreateJobRequest createJobRequest = new CreateJobRequest
        {
            Role = mediaConvertRole
        };

        createJobRequest.UserMetadata.Add("Customer", "Amazon");

        JobSettings jobSettings = new JobSettings
        {
            AdAvailOffset = 0,
            TimecodeConfig = new TimecodeConfig
            {
                Source = TimecodeSource.EMBEDDED
            }
        };
        createJobRequest.Settings = jobSettings;

        #region OutputGroup

        OutputGroup ofg = new OutputGroup
        {
            Name = "File Group",
            OutputGroupSettings = new OutputGroupSettings
            {
                Type = OutputGroupType.FILE_GROUP_SETTINGS,
                FileGroupSettings = new FileGroupSettings
                {
                    Destination = fileOutput
                }
            }
        };

        Output output = new Output
        {
            NameModifier = "_1"
        };

        #region VideoDescription

        VideoDescription vdes = new VideoDescription
        {
            ScalingBehavior = ScalingBehavior.DEFAULT,
            TimecodeInsertion = VideoTimecodeInsertion.DISABLED,
            AntiAlias = AntiAlias.ENABLED,
            Sharpness = 50,
            AfdSignaling = AfdSignaling.NONE,
            DropFrameTimecode = DropFrameTimecode.ENABLED,
            RespondToAfd = RespondToAfd.NONE,
            ColorMetadata = ColorMetadata.INSERT,
            CodecSettings = new VideoCodecSettings
            {
                Codec = VideoCodec.H_264
            }
        };
        output.VideoDescription = vdes;

        H264Settings h264 = new H264Settings
        {
            InterlaceMode = H264InterlaceMode.PROGRESSIVE,
            NumberReferenceFrames = 3,
            Syntax = H264Syntax.DEFAULT,
            Softness = 0,
            GopClosedCadence = 1,
            GopSize = 90,
            Slices = 1,
            GopBReference = H264GopBReference.DISABLED,
            SlowPal = H264SlowPal.DISABLED,
            SpatialAdaptiveQuantization = H264SpatialAdaptiveQuantization.ENABLED,
            TemporalAdaptiveQuantization = H264TemporalAdaptiveQuantization.ENABLED,
            FlickerAdaptiveQuantization = H264FlickerAdaptiveQuantization.DISABLED,
            EntropyEncoding = H264EntropyEncoding.CABAC,
            Bitrate = 5000000,
            FramerateControl = H264FramerateControl.SPECIFIED,
            RateControlMode = H264RateControlMode.CBR,
            CodecProfile = H264CodecProfile.MAIN,
            Telecine = H264Telecine.NONE,
            MinIInterval = 0,
            AdaptiveQuantization = H264AdaptiveQuantization.HIGH,
            CodecLevel = H264CodecLevel.AUTO,
            FieldEncoding = H264FieldEncoding.PAFF,
            SceneChangeDetect = H264SceneChangeDetect.ENABLED,
            QualityTuningLevel = H264QualityTuningLevel.SINGLE_PASS,
            FramerateConversionAlgorithm =
                H264FramerateConversionAlgorithm.DUPLICATE_DROP,
            UnregisteredSeiTimecode = H264UnregisteredSeiTimecode.DISABLED,
            GopSizeUnits = H264GopSizeUnits.FRAMES,
            ParControl = H264ParControl.SPECIFIED,
            NumberBFramesBetweenReferenceFrames = 2,
            RepeatPps = H264RepeatPps.DISABLED,
            FramerateNumerator = 30,
            FramerateDenominator = 1,
            ParNumerator = 1,
            ParDenominator = 1
        };
        output.VideoDescription.CodecSettings.H264Settings = h264;

        #endregion VideoDescription

        #region AudioDescription

        AudioDescription ades = new AudioDescription
        {
            LanguageCodeControl = AudioLanguageCodeControl.FOLLOW_INPUT,
            // This name matches one specified in the following Inputs.
            AudioSourceName = "Audio Selector 1",
            CodecSettings = new AudioCodecSettings
            {
                Codec = AudioCodec.AAC
            }
        };

        AacSettings aac = new AacSettings
        {
            AudioDescriptionBroadcasterMix = AacAudioDescriptionBroadcasterMix.NORMAL,
            RateControlMode = AacRateControlMode.CBR,
            CodecProfile = AacCodecProfile.LC,
            CodingMode = AacCodingMode.CODING_MODE_2_0,
            RawFormat = AacRawFormat.NONE,
            SampleRate = 48000,
            Specification = AacSpecification.MPEG4,
            Bitrate = 64000
        };
        ades.CodecSettings.AacSettings = aac;
        output.AudioDescriptions.Add(ades);

        #endregion AudioDescription

        #region Mp4 Container

        output.ContainerSettings = new ContainerSettings
        {
            Container = ContainerType.MP4
        };
        Mp4Settings mp4 = new Mp4Settings
        {
            CslgAtom = Mp4CslgAtom.INCLUDE,
            FreeSpaceBox = Mp4FreeSpaceBox.EXCLUDE,
            MoovPlacement = Mp4MoovPlacement.PROGRESSIVE_DOWNLOAD
        };
        output.ContainerSettings.Mp4Settings = mp4;

        #endregion Mp4 Container

        ofg.Outputs.Add(output);
        createJobRequest.Settings.OutputGroups.Add(ofg);

        #endregion OutputGroup

        #region Input

        Input input = new Input
        {
            FilterEnable = InputFilterEnable.AUTO,
            PsiControl = InputPsiControl.USE_PSI,
            FilterStrength = 0,
            DeblockFilter = InputDeblockFilter.DISABLED,
            DenoiseFilter = InputDenoiseFilter.DISABLED,
            TimecodeSource = InputTimecodeSource.EMBEDDED,
            FileInput = fileInput
        };

        AudioSelector audsel = new AudioSelector
        {
            Offset = 0,
            DefaultSelection = AudioDefaultSelection.NOT_DEFAULT,
            ProgramSelection = 1,
            SelectorType = AudioSelectorType.TRACK
        };
        audsel.Tracks.Add(1);
        input.AudioSelectors.Add("Audio Selector 1", audsel);

        input.VideoSelector = new VideoSelector
        {
            ColorSpace = ColorSpace.FOLLOW
        };

        createJobRequest.Settings.Inputs.Add(input);

        #endregion Input

        CreateJobResponse createJobResponse =
            await _amazonMediaConvert.CreateJobAsync(createJobRequest);

        var jobId = createJobResponse.Job.Id;

        return jobId;
    }

设置文件位置、客户端和包装器。

        // MediaConvert role Amazon Resource Name (ARN).
        // For information on creating this role, see
        // https://docs.aws.amazon.com/mediaconvert/latest/ug/creating-the-iam-role-in-mediaconvert-configured.html.
        var mediaConvertRole = _configuration["mediaConvertRoleARN"];

        // Include the file input and output locations in settings.json or settings.local.json.
        var fileInput = _configuration["fileInput"];
        var fileOutput = _configuration["fileOutput"];

        AmazonMediaConvertClient mcClient = new AmazonMediaConvertClient();

        var wrapper = new MediaConvertWrapper(mcClient);

通过 ID 获取任务。

        Console.WriteLine(new string('-', 80));
        Console.WriteLine($"Getting job information for Job ID {jobId}");
        var job = await wrapper.GetJobById(jobId);
        Console.WriteLine($"Job {job.Id} created on {job.CreatedAt:d} has status {job.Status}.");
        Console.WriteLine(new string('-', 80));

    /// <summary>
    /// Get the job information for a job by its ID.
    /// </summary>
    /// <param name="jobId">The ID of the job.</param>
    /// <returns>The Job object.</returns>
    public async Task<Job> GetJobById(string jobId)
    {
        var jobResponse = await _amazonMediaConvert.GetJobAsync(
                new GetJobRequest
                {
                    Id = jobId
                });

        return jobResponse.Job;
    }

设置文件位置、客户端和包装器。

        // MediaConvert role Amazon Resource Name (ARN).
        // For information on creating this role, see
        // https://docs.aws.amazon.com/mediaconvert/latest/ug/creating-the-iam-role-in-mediaconvert-configured.html.
        var mediaConvertRole = _configuration["mediaConvertRoleARN"];

        // Include the file input and output locations in settings.json or settings.local.json.
        var fileInput = _configuration["fileInput"];
        var fileOutput = _configuration["fileOutput"];

        AmazonMediaConvertClient mcClient = new AmazonMediaConvertClient();

        var wrapper = new MediaConvertWrapper(mcClient);

列出具有特定状态的任务。

        Console.WriteLine(new string('-', 80));
        Console.WriteLine($"Listing all complete jobs.");
        var completeJobs = await wrapper.ListAllJobsByStatus(JobStatus.COMPLETE);
        completeJobs.ForEach(j =>
        {
            Console.WriteLine($"Job {j.Id} created on {j.CreatedAt:d} has status {j.Status}.");
        });

使用分页工具列出任务。

    /// <summary>
    /// List all of the jobs with a particular status using a paginator.
    /// </summary>
    /// <param name="status">The status to use when listing jobs.</param>
    /// <returns>The list of jobs matching the status.</returns>
    public async Task<List<Job>> ListAllJobsByStatus(JobStatus? status = null)
    {
        var returnedJobs = new List<Job>();

        var paginatedJobs = _amazonMediaConvert.Paginators.ListJobs(
                new ListJobsRequest
                {
                    Status = status
                });

        // Get the entire list using the paginator.
        await foreach (var job in paginatedJobs.Jobs)
        {
            returnedJobs.Add(job);
        }

        return returnedJobs;
    }