Abstract: A computer readable medium and a method for bandwidth management, the method may include receiving or generating (a) video entity quality information for multiple sets of video entities, each set of video entities comprises video entities that belong to different versions of a same video stream, (b) user device screen size information for each user device out of multiple users devices, (c) user device profile information for each user out of multiple users, and (d) bandwidth constraints relating to bandwidth available for transmission of selected video entities to the user devices; wherein each user of the multiple users is associated with a user device of the multiple users devices; selecting for each user device a selected video entity based on at least (a) the video entity quality information, (b) the user device screen size information, (c) the requested video profile information, and (d) the bandwidth constraints; and, streaming to the multiple user devices from multiple selected video entities.

Abstract: A non-transitory computer readable medium and a method for session based classification. The method may include detecting an initialization of a certain TCP connection; defining the certain TCP connection as an active TCP connection; receiving, by a classifier, an incoming packet that belongs to a session that involves conveying a media asset using a HTTP as an application layer protocol; determining, by the classifier, whether the incoming packet belongs to the certain active TCP connection or not; and if it is determined that the incoming packet belongs to the certain active TCP connection then classifying the incoming to a session that is associated with the certain active TCP connection based upon a mapping between sessions and active TCP connections.

Abstract: Methods and systems for defining a compression and reconstruction scheme of a media stream, for generating and transmitting a base media layer and enhancement data layers and for reconstructing compressed representations of the media stream from the base media layer and the enhancement data layers.

Abstract: A system, method and a computer-readable medium having a computer-readable code embodied therein for providing content to a user, the method includes: generating, by a media provider, an instruction to fulfill a preliminary condition for receiving a second media conveying stream; transmitting the instruction to the user while also sending a first multicast media conveying stream; waiting for a preliminary condition fulfillment time period to lapse from an end of the transmitting of the instruction; and transmitting, by the media provider, the second media conveying stream towards the user, wherein the transmitting is initiated without being aware of an exact timing of a fulfillment of the preliminary condition.

Abstract: A system, method and computer program product, the method includes: locating within a media stream video of interest that starts at a random access point and ends at a packet associated with timing information that corresponds to a decoding time stamp of the random access point; modifying the video of interest to provide modified video of interest; wherein the modifying comprises modifying timing information associated with a beginning of the random access point to reflect a difference between the decoding time stamp and a transmission duration of the modified video of interest to a user; receiving a request, from the user, to perform a channel change and start receiving a channel that comprises the modified video of interest; and transmitting to the user the modified video of interest.

Abstract: A non-transitory computer readable medium and a method for session based classification. The method may include detecting an initialization of a certain TCP connection; defining the certain TCP connection as an active TCP connection; receiving, by a classifier, an incoming packet that belongs to a session that involves conveying a media asset using a HTTP as an application layer protocol; determining, by the classifier, whether the incoming packet belongs to the certain active TCP connection or not; and if it is determined that the incoming packet belongs to the certain active TCP connection then classifying the incoming to a session that is associated with the certain active TCP connection based upon a mapping between sessions and active TCP connections.

Abstract: Methods and systems for defining a compression and reconstruction scheme of a media stream, for generating and transmitting a base media layer and enhancement data layers and for reconstructing compressed representations of the media stream from the base media layer and the enhancement data layers.

Abstract: A method for splicing a first data stream that conveys a first single program transport stream (SPTS) and a second data stream that conveys a second SPTS, the method includes: receiving first data stream metadata units representative of first data stream packets, second data stream metadata units representative of second data stream packets and a request to perform a splicing operation at a n?th splicing point; performing, in response to the splicing request, transport stream layer processing of the first data stream metadata units and of the second data stream metadata units such as to provide a control output stream; and transmitting an output stream in response to the control output stream.

Abstract: A method for transmitting encrypted packets, the method includes: receiving a program that comprises an encrypted video stream, an encrypted audio stream and an encryption information stream; rescheduling a transmission of a certain encrypted video packet of the encrypted video stream to provide an altered encrypted video stream; rescheduling, in response to the rescheduling of the transmission of the certain encrypted video packet and in response to at least one encryption timing constraint, a first transmission of a certain encryption information item that is used to encrypt the certain encrypted video packet to provide an altered encryption information stream; and transmitting an amended program that comprises the altered encrypted video stream, the encrypted audio stream and the altered encryption information stream.

Abstract: An apparatus and method for generating a multiplex of media streams, the method includes the steps of: (i) receiving a set of media streams that comprises first type media stream components and second type media stream components; (ii) applying a modification process that is not adapted to modify second type media stream components, such as to provide at least one modified first type media stream component; and (iii) multiplexing at least the second type media stream components and the modified first type media stream components.

Abstract: Methods and computer program products for modifying a multiple program transport stream, generating a multiple program transport stream and extracting a single program transport stream, the method for modifying the multiple program transport stream includes: receiving a multiple program transport stream; and inserting a decoding time stamp equivalent value program clock reference in a transport stream packet of a program; wherein the transport stream packet is positioned so as the value of the inserted decoding time stamp equivalent value program clock reference is substantially equal to a decoding time stamp of an elementary stream of the program.

Abstract: Methods and systems for defining a compression and reconstruction scheme of a media stream, for generating and transmitting a base media layer and enhancement data layers and for reconstructing compressed representations of the media stream from the base media layer and the enhancement data layers.

Abstract: An apparatus and method for generating a multiplex of media streams, the method includes the steps of: (i) receiving a set of media streams that comprises first type media stream components and second type media stream components; (ii) applying a modification process that is not adapted to modify second type media stream components, such as to provide at least one modified first type media stream component; and (iii) multiplexing at least the second type media stream components and the modified first type media stream components.

Abstract: A method, system and computer program product. The method includes: receiving multiple variable bit rate version of a program; wherein different variable bit rate versions of the program differ from each other by their bit rate; converting each variable bit version of the program to a constant bit version of the program by adding null packets so that once an edge device removes the null packets a valid single program transport stream is generated; and transmitting multiple constant bit versions of the program to a server.

Abstract: Methods and systems for defining a compression and reconstruction scheme of a media stream, for generating and transmitting a base media layer and enhancement data layers and for reconstructing compressed representations of the media stream from the base media layer and the enhancement data layers.

Abstract: Methods and systems for defining a compression and reconstruction scheme of a media stream, for generating and transmitting a base media layer and enhancement data layers and for reconstructing compressed representations of the media stream from the base media layer and the enhancement data layers.

Abstract: Methods and systems for defining a compression and reconstruction scheme of a media stream, for generating and transmitting a base media layer and enhancement data layers and for reconstructing compressed representations of the media stream from the base media layer and the enhancement data layers.

Abstract: The invention provides a method for efficient multiplexing and modifying of media unit sequences. The invention allocates bit rates to media unit sequences and compresses media units in an optimal manner. The invention provides a method the includes calculating a sequence time threshold, for each received media unit sequence and executing modification and media unit replacements in view of the sequence time threshold.