public static VideoTime FromJsonFile(string jsonPath)
{
string json = File.ReadAllText(jsonPath);
VideoTime obj = JsonConvert.DeserializeObject <VideoTime>(json);
return(obj);
}
public bool LoadVideoJson()
{
try
{
string localJson = Storage.DownloadVideo(_videoJsonUrl);
Logger.Log($"Found override json: {_videoJsonUrl}");
VideoTime obj = FromJsonFile(localJson);
this.Start = obj.Start;
this.Duration = obj.Duration;
}
catch (System.Net.WebException)
{
Logger.Log("No json override found for " + _videoJsonUrl);
return(false);
}
return(true);
}
/// <summary>
/// Downloads video, extracts metadata, trims video to just the course pass, removes audio,
/// generates thumbnail, uploads metadata, thumbnail, final video, deletes ingest video.
/// </summary>
/// <returns>Url of processed video.</returns>
public async Task ProcessAsync()
{
try
{
var download = DownloadVideoAsync();
var timeOverride = GetPassOverrideAsync();
await Task.WhenAll(download, timeOverride);
_localVideoPath = download.Result;
_timeOverrides = timeOverride.Result;
_videoTasks = new VideoTasks(_localVideoPath);
var getCreationTime = GetCreationTimeAsync();
CoursePass pass = await CreateCoursePassAsync();
do
{
var createThumbnail = CreateThumbnailAsync(pass);
var uploadThumbnail = UploadThumbnailAsync(createThumbnail, getCreationTime);
var trimAndSilence = TrimAndSilenceAsync(pass);
var uploadVideo = UploadVideoAsync(trimAndSilence, getCreationTime);
var uploadHotVideo = UploadGoogleVideoAsync(trimAndSilence, getCreationTime);
await FitCenterLineAsync(pass);
await CreateAndUploadMetadataAsync(
pass,
uploadThumbnail,
uploadVideo,
uploadHotVideo
);
} while ((pass = HasAnotherPass(in pass)) != null);
DeleteIngestVideo();
}
catch (System.AggregateException aggEx)
{
throw new ApplicationException($"Unable to process {_sourceVideoUrl}. Failed at: \n" +
aggEx.GetBaseException().Message);
}
}
/// <summary>
/// Download and process JSON CoursePass override if it exists.
/// </summary>
private async Task <VideoTime> GetPassOverrideAsync()
{
VideoTime overrides = null;
try
{
await Task.Run(() => {
string jsonOverrideUrl = VideoTime.GetVideoJsonUrl(_sourceVideoUrl);
string jsonPath = Cloud.Storage.DownloadVideo(jsonOverrideUrl);
if (jsonPath != null)
{
overrides = VideoTime.FromJsonFile(jsonPath);
Logger.Log($"Video overrides found start, duration: {overrides.Start}, {overrides.Duration}");
}
});
}
catch (System.Net.WebException)
{
Logger.Log("No json override found for " + _sourceVideoUrl);
}
return(overrides);
}
