摘要:
A local system encodes previously decoded video data using a transcoding quantization value based on a source quantization value provided by a previous encoder as part of the retrieved video data. The transcoding quantization value can be determined additionally based the fullness of the video buffer of a target system, where a measure of the fullness can be obtained directly from the target system or modeled by the local system. The video data is encoded by the local system and then provided to a target system for decoding and subsequent display and/or storage.
摘要:
A local system encodes previously decoded video data using a transcoding quantization value based on a source quantization value provided by a previous encoder as part of the retrieved video data. The transcoding quantization value can be determined additionally based the fullness of the video buffer of a target system, where a measure of the fullness can be obtained directly from the target system or modeled by the local system. The video data is encoded by the local system and then provided to a target system for decoding and subsequent display and/or storage.
摘要:
A local system encodes previously decoded video data using a transcoding quantization value based on a source quantization value provided by a previous encoder as part of the retrieved video data. The transcoding quantization value can be determined additionally based the fullness of the video buffer of a target system, where a measure of the fullness can be obtained directly from the target system or modeled by the local system. The video data is encoded by the local system and then provided to a target system for decoding and subsequent display and/or storage.
摘要:
A video decoder includes an entropy decoding device that generates entropy decoded (EDC) data from an encoded video signal. A multi-format video decoding device includes a plurality of vector processor units that generate a decoded video signal from the EDC data. The plurality of vector processing units includes at least one filter vector processor that operates in conjunction with a plurality of programmable filter parameters.
摘要:
A technique for encoding and decoding video information uses a plurality of video processing modules (VPMs), whereby each video processing module is dedicated to a particular video processing function, such as filtering, matrix arithmetic operations, and the like. Information is transferred between the video processing modules using a set of first-in first-out (FIFO) buffers. For example, to transfer pixel information from a first VPM to a second VPM, the first VPM stores the pixel information at the head of a FIFO buffer, while the second VPM retrieves information from the tail of the FIFO buffer. The FIFO buffer thus permits transfer of information between the VPMs without storage of the information to a cache or other techniques that can reduce video processing speed.
摘要:
A multimedia server receives a plurality of programs of a multimedia source. The multimedia server includes a tuning module to receive the plurality of programs and to select a set of programs from the plurality of programs based on a set of program select commands that is derived from select requests. A program mixer mixes the set of programs into a stream of program data. One or more transceiving modules transmit the stream of program data on to corresponding communication paths and receive the select requests. A client module produces the select requests for one or more clients. The client module includes a selection module to produce at least one of the select requests. A network interface controller transmits at least one of select requests to the multimedia server and receives the stream of program data via the communication path or paths in response.
摘要:
A system and a method for manipulating video data received over a media channels is disclosed herein. The method includes using an index table to reference stored video data, including motion vectors, so that they can be efficiently accessed by encoder and decoder portions of a transcoder, where the decoder generates source pixel images, and the encoder generates estimated motion vectors based on the motion vector data stored.
摘要:
A first data storage requirement of a first multimedia data representative of a multimedia program to be stored at a storage device is determined. An available remaining storage capacity of the storage device is determined. The first multimedia data is transcoded to generate a second multimedia data having a second data storage requirement that is less than the first data storage requirement if the first storage requirement exceeds the available remaining storage capacity of the storage device. Alternately, a second multimedia data stored at the storage device and representative of a second multimedia program is selected based on user preference information. The second multimedia data is transcoded to generate a third multimedia data having a lower data storage requirement. The third multimedia data is stored at the storage device in place of the second multimedia data to increase the available remaining storage capacity of the storage device.
摘要:
A multimedia program type of a received multimedia data is determined. Based on the determined multimedia program type, a peak bit rate limit and/or an average bit rate limit are determined. In instances where a transrated version of the multimedia data is to be stored, a remaining storage capacity of a storage device is determined and the peak bit rate limit and/or the average bit rate limit can be adjusted based on the remaining storage capacity. The multimedia data then is transrated to generate transrated multimedia data that has a peak bit rate that does not exceed the selected peak bit rate limit and/or having an average bit rate that does not exceed the selected average bit rate limit. The transrating of the multimedia additionally can include the application of rule sets based on content characteristics. After transrating, the multimedia data can be transmitted via a network to a destination multimedia device, stored locally for subsequent use, or a combination thereof.
摘要:
A device and method for storage device emulation in a multimedia processing system are provided. The device includes a processing module to process multimedia data, a first mass storage device interface operably coupled to the processing module, the first mast storage interface operable to couple to a mass storage device interface of a multimedia processing device and a second mass storage device interface operably coupled to the first mass storage device and the processing module, wherein the second mass storage device is operable to couple to one or more mass storage devices. A method is also provided. The method comprises receiving a first multimedia data at first mass storage device interface of a first multimedia processing device, processing the first multimedia data at the first multimedia processing device to generate a first processed multimedia data and providing the first processed multimedia data to a second mass storage device interface of the first multimedia processing device for output.