Qualcomm Incorporated

Yekui Wang

Thomas Stockhammer

Nikolai Konrad Leung

Ramachandran Subramanian

Marta Karczewicz

Adarsh Krishnan Ramasubramonian

Geert Van Der Auwera

Joel Sole Rojals

Dmytro Rusanovskyy

Giridhar Dhati Mandyam

Charles Nung Lo

Waqar Zia

Done Bugdayci Sansli

Methods and apparatus are disclosed for session initiation in a conference. In one aspect, a method for communicating between multiple parties is disclosed. The method comprises generating, at a first device, a first message for transmission to a second device. The method further comprises receiving, at the first device, a second message for establishing a conference. The second message includes a list of one or more concurrent codec capabilities supported by the second device. The list of one or more concurrent codec capabilities supported by the second device comprises an indication of whether one or more resources usable for one or more concurrent instances of a first listed codec may instead be used for one or more concurrent instances of a second listed codec.

Methods and apparatus for use of compact concurrent codecs in multimedia communications

In various implementations, modifications and/or additions to the ISOBMFF can indicate that a file that has been formatted according to the ISOBMFF, or a format derived from the ISOBMFF, includes virtual reality content. The file can include a restricted scheme information box, written into a track box in the file. The restricted scheme information box can indicate a virtual reality scheme for the contents of the track. For example, a signaling mechanism may indicate a most-viewed viewport associated with the virtual reality data.

Advanced signaling of regions of interest in omnidirectional visual media

In one example, a device for retrieving media data includes a memory configured to store media data, and one or more processors implemented in circuitry and configured to retrieve a file including the media data, web content formatted according to hypertext markup language (HTML), and data indicating how to synchronize the web content with the media data, and present the media data and the web content, wherein to present the media data and the web content, the one or more processors are configured to synchronize presentation of the web content with presentation of the media data according to the data indicating how to synchronize the web content with the media data.

Processing media data using file tracks for web content

In various implementations, provided are techniques, as well as systems that implement these techniques, for SEI messages that distinguish 'essential' information from 'non-essential' information. In various implementations, an encoder can be configured to determine whether information associated with video data is essential or is not essential. In various implementations, different types of SEI messages can be defined, where one or more of these types of SEI messages can indicate whether information associated with a particular video is essential or not essential. Essential information is required for presenting the video data, and is not required for decoding the video data.

Signalling of summarizing video supplemental information

A method of processing a file including video data, including processing a file including fisheye video data, the file including a syntax structure including a plurality of syntax elements that specify attributes of the fisheye video data, wherein the plurality of syntax elements include one or more bits that indicate fisheye video type information, determining, based on the one or more bits of the syntax structure, the fisheye video type information for the fisheye video data, outputting, based on the determination, the fisheye video data for rendering.

Enhanced high-level signaling for fisheye virtual reality video

Techniques and systems are provided for processing video data. In one example, a media file associated with 360-degree video data can be obtained. The 360-degree video data may include a spherical representation of a scene. The media file may include first signaling information and second signaling information of a viewport region corresponding to a region of interest (ROI) in the spherical representation. The first signaling information may include a center position and a dimension of the viewport region measured in a spherical space associated with the spherical representation. The second signaling information may indicate a region of a picture comprising the viewport region, the picture being formed by projecting the spherical representation including the ROI onto a plane. Pixels corresponding to the viewport region from the data of the picture can be extracted based on the first signaling information and second signaling information, and can be provided for rendering.

Systems and methods of signaling of regions of interest

A device includes a processor configured to process a first sample of a first track having a first composition time, determine whether a second track that is associated with the first track has an available sample at the first composition time, when the second track has the available sample at the first composition time, select the available sample of the second track as a second sample having a common composition time with the first composition time of the first sample, when the second track does not have the available sample at the first composition time, select a sample of the second track having a composition time that is a closest available preceding composition time as the second sample having the common composition time with the first composition time of the first sample, and in response to selecting the second sample, process the second sample.

Processing media data using an omnidirectional media format

A method of processing a manifest file including one or more syntax elements in an adaptation set level syntax structure that specify attributes of one or more representations of a corresponding adaptation set, the one or more representations including fisheye video data, determining, based on the one or more syntax elements, the attributes of the one or more representations including the fisheye video data, and retrieving, based on the determination, at least a portion of a segment of the one of the representations including the fisheye video data, the segment comprising an independently retrievable media file.

Enhanced high-level signaling for fisheye virtual reality video in dash

Systems, methods, and computer readable media are described for generating a regional nesting message. In some examples, a video bitstream is obtained and an encoded video bitstream is generated using the video data. The encoded video bitstream includes a regional nesting message that contains a plurality of nested messages and region data defining at least a first region of a picture of the encoded video bitstream. For example, a first nested message of the regional nesting message includes a first set of data and a first region identifier indicating the first region of the picture is associated with the first set of data.

Methods and systems for generating regional nesting messages for video pictures

Techniques and systems are provided for processing video data and processing one or more media format files. For example, video data can be obtained and processed to generate a media format file that includes the video data and a restricted scheme information box associated with the video data. The restricted scheme information box includes a plurality of scheme type boxes that identify a plurality of restricted scheme types required for processing the video data. In another example, the media format file including the video data and the restricted scheme information box associated with the video data is obtained. The media format file can be parsed, and the video data can be processed according to the plurality of restricted scheme types identified by the plurality of scheme type boxes.

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San Diego, CA, United States of America

Yekui Wang