Device and method for multimedia communications with picture orientation information

An apparatus for displaying media information, the apparatus comprising:

• a memory unit configured to store picture or video information, said picture or video information including at least one output picture and rotation information for the at least one output picture, the rotation information included in a header portion of the picture or video information and the at least one output picture included in a picture field portion of the picture or video information, the picture field portion being encoded and the header portion being distinct from the picture field portion;
• a transport layer processor configured to:
• extract rotation data and a period for the rotation data from the rotation information included in the header portion, the period for the rotation data being identified based on a start time stamp of a picture to which the rotation applies, the start time stamp included in a start field, and an end time stamp of a picture after the end of the rotation period, the end time stamp included in an end field;
• and
• extract the at least one output picture from the picture field portion;
• a decoder configured to decode the extracted at least one output picture;
• and
• a presentation processor configured to generate a version of the decoded at least one output picture for display based on the identified rotation data and the identified period.

A non-transitory computer readable storage medium comprising instructions executable by a processor of an apparatus, the instructions causing the apparatus to:

• obtain picture or video information, said picture or video information including at least one output picture and rotation information for the at least one output picture, the rotation information included in a header portion of the picture or video information and the at least one output picture included in a picture field portion of the picture or video information, the picture field portion being encoded and the header portion being distinct from the picture field portion;
• decode at least one output picture included in the picture field portion of the picture or video information;
• identify rotation data and a period for the rotation data based on the rotation information included in the header portion of the picture or video information, the period for the rotation data being identified based on a start time stamp of a picture to which the rotation applies, the start time stamp included in a start field, and an end time stamp of a picture after the end of the rotation period, the end time stamp included in an end field;
• and
• rotate the decoded at least one output picture in accordance with the identified rotation data and the identified period.

An apparatus for displaying media information, the apparatus comprising:

• means for obtaining picture or video information, said picture or video information including at least one output picture and rotation information for the at least one output picture, the rotation information included in a header portion of the picture or video information and the at least one output picture included in a picture field portion of the picture or video information, the picture field portion being encoded and the header portion being distinct from the picture field portion;
• means for processing transport layer information configured to:
• extract rotation data and a period for the rotation data from the rotation information included in the header portion, the period for the rotation data being identified based on a start time stamp of a picture to which the rotation applies, the start time stamp included in a start field, and an end time stamp of a picture after the end of the rotation period, the end time stamp included in an end field;
• and
• extract the at least one output picture from the picture field portion;
• means for decoding configured to decode the extracted at least one output picture;
• and
• means for generating a display configured to generate a version of the decoded at least one output picture for display based on the identified rotation data and the identified period.