Information processing apparatus, information processing method, display control apparatus, display controlling method, and program for display of a plurality of video streams

An information processing method comprising the steps of:

• multiplexing a plurality of video streams;
• adding compose information to a multiplexed stream obtained through said multiplexing, said added compose information including first information designating a screen used for picture display, second information designating display of one of said video streams in reference to other compose information, third information designating a horizontal position that the one of the video streams is to be positioned, and fourth information designating a vertical position that the one of said video streams is to be positioned;
• and
• transmitting said multiplexed stream with said added compose information.

A non-transitory recording medium on which is recorded a program for causing a computer to execute a process comprising the steps of:

• multiplexing a plurality of video streams;
• adding compose information to a multiplexed stream obtained through said multiplexing, said compose information including first information designating a screen used for picture display, second information designating display of one of said video streams in reference to other compose information, third information designating a horizontal position that the one of the video streams is to be positioned, and fourth information designating a vertical position that the one of said video streams is to be positioned;
• and
• transmitting said multiplexed stream with said added compose information.

A display control apparatus for acquiring a multiplexed stream provided by an information processing apparatus for picture display, said multiplexed stream being obtained by multiplexing a plurality of video streams, said information processing apparatus adding to said multiplexed stream compose information including first information designating a screen used for picture display, second information designating display of one of said video streams in reference to other compose information, third information designating a horizontal position that the one of the video streams is to be positioned, and fourth information designating a vertical position that the one of said video streams is to be positioned, said display control apparatus comprising:

• a hardware structure for:
• separating said multiplexed stream into said video streams;
• analyzing said compose information added to said multiplexed stream so as to detect the one of said video streams based on said second information, to detect the horizontal and vertical positions of the one of the video streams based on said third and fourth informations, and to form a window in those positions designated by said third and fourth informations which are on said screen designated by said first information;
• decoding said video streams;
• and
• displaying in respective windows on said screen pictures obtained through the decoding.

A display controlling method for acquiring a multiplexed stream provided by an information processing apparatus for picture display, said multiplexed stream being obtained by multiplexing a plurality of video streams, said information processing apparatus adding to said multiplexed stream compose information including first information designating a screen used for picture display, second information designating display of one of said video streams in reference to other compose information, third information designating a horizontal position that the one of the video streams is to be positioned, and fourth information designating a vertical position that the one of said video streams is to be positioned, said display controlling method comprising the steps of:

• separating said multiplexed stream into said video streams;
• analyzing said compose information added to said multiplexed stream so as to detect the one of said video streams based on said second information, to detect the horizontal and vertical positions of the one of the video streams based on said third and fourth informations, and to form a window in which to display the one of the video streams in those positions designated by said third and fourth informations which are on said screen designated by said first information;
• decoding said video streams;
• and
• displaying in respective windows on said screen pictures obtained through the decoding.

A non-transitory recording medium on which is recorded a program for causing a computer to execute a process for acquiring a multiplexed stream provided by an information processing apparatus for picture display, said multiplexed stream being obtained by multiplexing a plurality of video streams, said information processing apparatus adding to said multiplexed stream compose information including first information designating a screen used for picture display, second information designating display of one of said video streams in reference to other compose information, third information designating a horizontal position that the one of the video streams is to be positioned, and fourth information designating a vertical position that the one of said video streams is to be positioned, said process comprising the steps of:

• separating said multiplexed stream into said video streams;
• analyzing said compose information added to said multiplexed stream so as to detect the one of said video streams based on said second information, to detect the horizontal and vertical positions of the one of the video streams based on said third and fourth informations, and to form a window in those positions designated by said third and fourth informations which are on said screen designated by said first information;
• decoding said video streams;
• and
• displaying in respective windows on said screen pictures obtained through decoding.