Patent application number | Description | Published |
20120117225 | METHODS AND APPARATUS FOR PROVIDING A MEDIA STREAM QUALITY SIGNAL - Systems, methods and apparatus are provided for computing quality scores for a media session delivered using an adaptive streaming protocol, where the quality score may be an estimate of a mean opinion score. The quality score reflects the impact of network delivery on a viewer's quality of experience (QoE). In particular, the quality score is generally based on the effects of stream switch events, as stream switches may be the result of impaired network delivery. Other network events, such as re-buffering events may also be incorporated in the score. | 05-10-2012 |
20130083848 | SYSTEMS AND METHODS FOR DYNAMIC TRANSCODING OF INDEXED MEDIA FILE FORMATS - Methods and systems for transcoding from an input media stream to an output media stream, wherein the input media stream and the output media stream are in an indexed file format. The methods and systems are capable of generating an efficiently coded media file where the movie box is generated and sent before transcoding is complete, while maintaining acceptable and consistent quality throughout and minimizing the total size of the file. | 04-04-2013 |
20130086279 | SYSTEMS AND METHODS FOR MEDIA SERVICE DELIVERY - Methods and systems for delivering multimedia content in various telecommunications networks while optimizing quality of experience (QoE). The described methods and systems implement a fast processing path and a slow processing path. In the fast processing path, minimal packet processing is performed to reduce latency. In the slow processing path, increased packet processing is performed to identify media sessions and to perform further data processing. The slow processing path can be used in an online or offline mode, depending on a current flow state. | 04-04-2013 |
20130086631 | SYSTEMS AND METHODS FOR CONTROLLING ACCESS TO A MEDIA STREAM - Systems and methods of controlling access to a multimedia stream in a media streaming session from a multimedia server to a requesting device via a network. The systems and methods facilitate receiving a primary request for the multimedia stream from the requesting device; determining whether to allow access to the primary request from the requesting device in accordance with at least one media session policy; and if access is permitted, then generating a secondary request corresponding to the primary request; providing the secondary request to the multimedia server; receiving a first multimedia stream from the multimedia server in response to the secondary request; determining whether to transmit the first multimedia stream or a second multimedia stream based on the at least one media session policy; and transmitting either the first multimedia stream or the second multimedia stream to the requesting device as indicated by the at least one media session policy. | 04-04-2013 |
Patent application number | Description | Published |
20130041998 | DELIVERY QUALITY OF EXPERIENCE (QoE) IN A COMPUTER NETWORK - An apparatus generally having an interface and a circuit is disclosed. The interface may be connectable to a network to monitor a media program streaming across the network to a media client. The circuit may be configured to (i) generate first information by modeling a buffer of the media client, the first information being representative of a plurality of events related to the buffer during a playback of the media program and (ii) generate a signal representative of a quality of experience of the media program in response to the first information. | 02-14-2013 |
20130304934 | METHODS AND SYSTEMS FOR CONTROLLING QUALITY OF A MEDIA SESSION - Methods and systems for controlling quality of a media stream in a media session. The described methods and system control the quality of the media stream by controlling transcoding of the media session. The transcoding is controlled at the commencement of the media session and dynamically during the life of the media session. The transcoding is controlled by selecting a target quality of experience (QoE) for the media session, computing a predicted QoE for each of a plurality of control points, where each control point has a plurality of transcoding parameters associated therewith, selecting an control point of the plurality of control points, wherein the predicted QoE for the selected control point substantially corresponds with the target QoE and signaling the transcoder to use the selected control point for the media session. | 11-14-2013 |
20130318253 | METHODS AND APPARATUS FOR PROVIDING A PRESENTATION QUALITY SIGNAL - Apparatus, methods and systems using no-reference techniques for computing quality scores for audio and video components of a media session, where the quality scores are estimates of perceived quality by the viewer for the individual components of the media session. A presentation quality score is computed for a media stream by parsing a container of the media stream to determine media stream characteristics, estimating an visual quality factor and based on the visual quality factor, determining the presentation quality score. | 11-28-2013 |
Patent application number | Description | Published |
20110122940 | METHOD AND APPARATUS FOR VC-1 TO MPEG-2 VIDEO TRANSCODING - A method for transcoding from a VC-1 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the VC-1 format to generate a picture; (B) determining a first mode indicator for the picture; and (C) coding the picture into an output video stream in the MPEG-2 format using one of (i) an MPEG-2 field mode coding and (ii) an MPEG-2 frame mode coding as determined from the first mode indicator. | 05-26-2011 |
20110135004 | H.264 TO VC-1 AND VC-1 TO H.264 TRANSCODING - A method for transcoding from an H.264 format to a VC-1 format. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the VC-1 format using one of (i) a VC-1 field motion compensation mode coding and (ii) a VC-1 frame motion compensation mode coding as determined from the mode indicator. | 06-09-2011 |
20120002727 | METHOD AND APPARATUS FOR MPEG-2 TO VC-1 VIDEO TRANSCODING - A method for transcoding from an MPEG-2 format to a VC-1 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the MPEG-2 format to generate a picture; (B) determining a mode indicator for the picture; and (C) coding the picture into an output video stream in the VC-1 format using one of (i) a VC-1 field mode coding and (ii) a VC-1 frame mode coding as determined from the mode indicator. | 01-05-2012 |
20120110167 | DEVICE WITH VIDEO BUFFER MODELING AND METHODS FOR USE THEREWITH - A device includes a frame data analyzer that generates buffer increment data based on frame data sent from the media server to the media client and further based on acknowledgement data sent from the media client to the media server. A playback data generator generates playback data based on frame data buffer contents and further based on player state data. A frame buffer model generator generates a buffer fullness indicator and the frame data buffer contents, based on the buffer increment data and the playback data. A player state generator generates the player state data, based on the buffer fullness indicator and further based on media client data, media server data and player command data. | 05-03-2012 |
20120307907 | MOTION VECTOR REFINEMENT FOR MPEG-2 TO H.264 VIDEO TRANSCODING - A method for transcoding that includes (A) generating a decoded frame by decoding an MPEG-2 input video stream, the decoded frame including decoded macroblocks; (B) determining a search center for encoding a current macroblock corresponding to a pair of the decoded macroblocks on consecutive macroblock rows, when (i) the encoding uses a predictive field mode and (ii) a current field being encoded is a second field of a current frame that has a first field as a reference field, the search center is a temporally scaled version of a decoded motion vector from an upper or a lower macroblock in the pair; (C) generating a refined motion vector by searching in a temporal search direction about the search center; and (D) generating an H.264 output video stream by encoding the current macroblock based on the refined motion vector. | 12-06-2012 |
20130031575 | SYSTEM FOR MONITORING A VIDEO NETWORK AND METHODS FOR USE THEREWITH - A monitoring system includes a video network analyzer processes the packet data to generate network and media session data relating to the distribution of video content via the data distribution network in at least one media session, wherein the network and media session data includes at least one session metric, location data, protocol identification data, video encoding parameter data, and audio encoding parameter data. An analytics database stores the network and media session data for generation of report data. | 01-31-2013 |
20140181266 | SYSTEM, STREAMING MEDIA OPTIMIZER AND METHODS FOR USE THEREWITH - A streaming media optimizer includes a session quality analyzer that receives media session data and network data corresponding to a plurality of media sessions and that generates a plurality of session quality parameters corresponding to the plurality of media sessions in response thereto. A policy system generates session policy data that includes a plurality of quality targets corresponding to the plurality of media sessions. A controller generates control data, based on the session quality data and the session quality parameters, to allocate network resources to control the streaming media in the plurality of media sessions. | 06-26-2014 |