Server side crossfading for progressive download media
Systems and methods are provided to implement and facilitate cross-fading, interstitials and other effects/processing of two or more media elements in a personalized media delivery service to experience consistent high quality. The effects or crossfade processing may occur on the broadcast/publisher/server-side, but may be personalized to a specific user, allowing a personalized experience for each user, where the processing burden is minimized on the downstream side/client device. This approach enables a consistent user experience, independent of client device capabilities. A large-scale personalized content delivery service may be implemented by limiting the processing to the first and last chunks of any file. In exemplary embodiments, this type of processing may easily be accommodated in cloud computing technology, where first and last files are extracted and processed within the cloud to meet the required load. Processing may be done locally, by the broadcaster, with sufficient processing power to manage peak load.
1. A non-transitory computer readable medium containing instructions that, when executed by at least one processor of a computing device, cause the computing device to provide server-side crossfading for a personalized media delivery service, comprising:
identifying a plurality of media clips to use in an effect;
determining, for each of the plurality of clips, multiple chunks to process for the effect;
receiving the multiple chunks at a compressed crossfade module; and
combining compressed data from each of the multiple chunks to generate a revised chunk containing the compressed data;
wherein the revised chunk is equal in quality to the plurality of media clips.
2. The non-transitory computer readable medium of claim 1 , wherein the processing further includes creating a new index file for the revised chunk.
3. The non-transitory computer readable medium of claim 1 , wherein the determining is performed via an algorithm that assesses the number of chunks to process for the effect.
4. The non-transitory computer readable medium of claim 3 , wherein the algorithm inputs at least one of the following parameters: (I) intra and outro information of each of the plurality of clips, (ii) type of the effect, and (iii) audio trajectory of the effect.
5. A non-transitory computer readable medium containing instructions that, when executed by at least one processor of a computing device, cause the computing device to provide server-side crossfading for a personalized media delivery service comprising:
identifying a plurality of media clips to use in an effect;
determining, for each of the plurality of clips, beginning and end chunks to process for the effect and core chunks to be excluded from the effect;
processing the beginning and end chunks of a first one of the plurality of clips in compressed format by time aligning and combining the beginning and end chunks of the first clip with one or more chunks of at least one other clip of the plurality of clips; and
transmitting core chunks and the processed beginning and end chunks of the first clip to a plurality of client devices, each corresponding to a respective user, wherein the processing is personalized such that the beginning and end chunks of the first clip are processed differently for each respective user.
6. The non-transitory computer readable medium of claim 5 , wherein the processing further includes creating a new index file for the first clip.
7. The non-transitory computer readable medium of claim 5 , wherein the determining is performed via an algorithm that assesses the number of chunks to process for the effect.
8. The non-transitory computer readable medium of claim 7 , wherein the algorithm inputs at least one of the following parameters: (I) intra and outro information of each of the plurality of clips, (ii) type of the effect, and (iii) audio trajectory of the effect.
9. The non-transitory computer readable medium of claim 5 , wherein the processing is personalized such that custom chunks of the first clip are processed differently for each respective user, and the core chunks of the first clip are provided to each respective user without additional modifications.
10. The non-transitory computer readable medium of claim 5 , wherein the processing further includes receiving data from the client device used to generate inferences from behavior of the respective user on the client device, wherein the processing is personalized based on the received data.