VOD product rendering controller
A product rendering controller (PRC) manages the overall process of creating video-on-demand (VOD) assets or products from source assets that are obtained from a wide variety of different content sources (e.g., web-based sources) and which are in a wide variety of different native media formats. The source assets are converted to video transport streams such as an MPEG transport stream and transcoded as necessary to create the VOD products. The PRC determines the VOD products that need to be generated, pre-caches data that is to be incorporated into VOD products, and selects the pool of video product generators that is to be used to convert the source assets to VOD products.
1. A method of managing a process for converting source assets from a native format to a video transport stream that conforms to a prescribed protocol, comprising:
identifying a plurality of source assets that are each to be processed by a respective one of a plurality of pools of video product generators that create sequential frames of video products in a video transport stream from source video frames of the source assets;
for each of the source assets, selecting one of the plurality of video pools for processing a respective one of the source assets based at least in part on at least one format-independent image attribute of the respective source asset and at least one characteristic of the selected video product generator pool; and
for each of the source assets, requesting the selected video product generator pool to generate the respective video transport streams.
2. The method of claim 1 , further comprising classifying each of the source assets by a content type, wherein the at least one attribute of each of the source assets corresponds to the content type, the content types being defined by a nature and complexity of the process that will be needed to transform the source assets into video transport streams.
3. The method of claim 2 , wherein selecting one of the plurality of video product generator pools includes, for each of the source assets, selecting a video product generator pool based on the content type of the respective source asset.
4. The method of claim 3 , wherein selecting a video product generator pool based on the content type of the respective source asset includes selecting a video product generator pool that has a processing capability that best matches the content type of the respective source asset.
5. The method of claim 1 , wherein the at least one characteristic of the selected video product generator includes a processing capability of the selected video product generator.
6. The method of claim 1 , further comprising causing pre-established values for global and source asset specific parameters to be applied during processing of the source assets by the video product generators.
7. The method of claim 1 , further comprising assigning expiration times and time-to-live values to selected video products.