An audio/video (or audiovisual, “A/V”) signal processing apparatus and method for extracting a compact representation of a multimedia description and transcoding hints metadata for transcoding between different (e.g., MPEG) compressed content representations, manipulating (e.g., MPEG compressed) bitstream parameters such as frame rate, bit rate, session size, quantization parameters, and picture coding type structure (e.g., group of pictures, or “GOP”), classifying A/V content, and retrieving multimedia information.

Method and apparatus for generating compact transcoding hints metadata

According to one embodiment, a circuit configured to form an output video stream includes a resolution modification circuit configured to receive a plurality of video frames from a frame buffer, and configured to modify resolution of the plurality of video frames, when the desired resolution for the output video stream is different than a resolution of the input video stream, the plurality of frames of data derived from an input video stream, a frame reducing circuit coupled to the resolution reducing circuit configured to reduce a number of video frames in the plurality of video frames from the resolution reducing circuit, when a desired frame rate for the output video stream is different than a frame rate of the input video stream, a depth reduction circuit coupled to the frame reducing circuit configured to reduce bit depth of the plurality of video frames from the frame reducing circuit, when a desired bit depth for the output video stream is different than a bit depth of the input video stream, and a rate reduction circuit coupled to the depth reduction circuit, configured to scale the plurality of video frames from the depth reduction circuit, in response to a desired bit rate for the output video stream, and an encoder coupled to the rate reduction circuit, configured to encode the plurality of video frames from the rate reduction circuit into the output video stream is also contemplated.

System for transforming streaming video data

A method for forming an output stream of data includes determining an output resolution for the output stream of data, determining an output frame rate for the output stream of data, determining an output color depth for the output stream of data, retrieving a first frame of data, a second frame of data, and a third frame of data from an input stream of data, the input stream of data having an input resolution, an input frame rate, and an input color depth, subsampling the first frame of data, the second frame of data, and the third frame of data to respectively form a first subsampled frame of data, a second subsampled frame of data, and a third subsampled frame of data, when the output resolution is lower than the input resolution, dropping the second subsampled frame of data, when the output frame rate is lower than the input frame rate, reducing color depth for the first subsampled frame of data and the second subsampled frame of data to respectively form a first reduced frame of data and a second reduced frame of data, when the output color depth is smaller than the input color depth, and converting the first reduced frame of data and the second reduced frame of data into the output stream of data.

Methods for transforming streaming video data

A communication system (100) includes a first content delivery network (280), a second content delivery network (280) and a communication network (132). A content management system (221) generates a content delivery network identification and associates the content delivery network identification with content. A content distribution system (260) selects the first content delivery network or the second content delivery network in response to the content delivery network identification to form a selected content delivery network. The content distribution system (260) communicates the content to the selected content delivery network (280) in response to the content delivery network identification. The selected content delivery network (280) communicates the content to a user device (110, 112) through the selected content delivery network (280) and the communication network (132).

Method and system for managing content in a content processing system having multiple content delivery networks

A system includes a content management system having a first set of business rules for a first content including a first target and a second set of business rules for a second content including a second target. The system also includes a workflow system that receives the first and second targets. The work flow system obtains first content with a first business rule identification and second content with a second business rule identification. The content management system associates the first content with the first set of business rules and associates the second content with the second set of business rules. A processing system processes the first content to form first processed content in response to the first business rules and processes the second content to form second processed content in response to the second business rules. A content repository stores the first and second processed content.

Method and system for utilizing multiple content delivery networks for distributing content

A process and apparatus for converting an MPEG-2 bistream into an SMPTE-259 compatible bitstream are characterized by a frame rate converter which is selectively enabled to drop every 1001st frame of the incoming MPEG-2 bitstream depending on the input bitstream frame rate. If the input bitstream frame rate is other than 29.97 or 59.94 Hz, a frame dropper is enabled to discard every 1001st frame. The present converter can convert many different types of input bitstreams, such as all I types, IPIP types, or complex GOP types containing I, P, and B frames. The enabled frame dropper will drop either the I or P frame if it occurs as the 1001st frame, but if the 1001st frame is of the B frame type, the pixel information of the B frame is dropped. This produces a minimum in loss of information during the conversion. The format converter allows existing SMPTE-259 routing equipment to route and utilize MPEG-2 bitstreams, such as HDTV applications.

Bhatt Bhavesh Bhalchandra

Papers

Process and apparatus for converting an mpeg-2 bitstream into an smpte-259 compatible bitstream