Abstract:
A network video playback method and an apparatus, where location information of an independently decoded frame in a media segment and location information of a non-independently decoded frame that is in the media segment and that references the independently decoded frame are added to a segment index in order to determine a video frame closest to an access time point from the independently decoded frame and the non-independently decoded frame. The independently decoded frame that is referenced by the video frame closest to the access time point is acquired when the video frame closest to the access time point is the non-independently decoded frame, and decoding starts from the video frame closest to the access time point according to the referenced independently decoded frame, and video playback is performed. Hence, access accuracy of network video playback can be improved.
Abstract:
The present invention discloses a video encoding and decoding method, apparatus and system, where the video encoding method includes: determining an independently decodable view in a to-be-encoded picture according to a configuration file corresponding to the video; dividing the picture into at least two tiles, where an area corresponding to one or more tiles that cover the independently decodable view is an independently decodable area; generating an auxiliary message corresponding to the picture, where the auxiliary message includes a location identifier of the independently decodable area; and encoding all tiles included in the picture to form an encoded video bitstream, where the encoded video bitstream includes the auxiliary message. Decoding this encoded video bitstream can lower a requirement for performance of a decoder and improve decoding efficiency.
Abstract:
A method and an apparatus for supporting time shift playback in an adaptive Hypertext Transfer Protocol (HTTP) streaming transmission solution are disclosed. The method includes: sending a live media presentation description (MPD) request message to a media server; receiving a response message that includes MPD for a current time period, where the MPD further includes media presentation information for another time period; determining that a moment of a media segment to be requested currently exceeds a time range corresponding to the MPD; acquiring the corresponding MPD according to the media presentation information corresponding to the media segment, and requesting, according to the acquired corresponding MPD, the media segment. In this manner, a client supports time shift playback of a larger time range, and at the same time, the size of the MPD is capable of remaining in an acceptable range.
Abstract:
The present invention discloses a media data control method and apparatus. The method includes: receiving a control request message sent by a terminal, where the control request message carries identification information of a substream and a uniform resource identifier URI of a media stream to which the substream belongs; obtaining the identification information of the substream and the URI of the media stream to which the substream belongs; determining, according to the identification information of the substream and the URI of the media stream to which the substream belongs, media data of the substream; and performing, based on the media data, a control operation requested by the terminal, for the substream. With the present invention, independent control can be implemented for data of different features under the same type in the case where the data of different features is transmitted through the same media stream.
Abstract:
A video processing method, a terminal, and a server, where the method includes receiving a media presentation description (MPD) file sent by the server, where the MPD file includes region information of a region that can be independently decoded in the video, determining, according to the region information, a region used for playback on a terminal from the region that can be independently decoded, determining a to-be-acquired media segment according to the MPD file, acquiring a location in which data content is stored in the media segment, acquiring, according to the location in which the data content is stored in the media segment, the data content from the media segment stored in the server, and playing a picture of the region for the playback on the terminal. Therefore, it is not required to independently store a partial video on the server, thereby saving a storage resource of the server.
Abstract:
The present invention relates to the multimedia field, and discloses a method, a device, and a system for controlling content report behavior. The method includes: receiving a request for subscribing to a configuration update notification, in which the request is sent by the terminal or the media control function, and a configuration update request that is sent by an SCF and carries the new content report configuration information, and sending a configuration update notification message to the terminal or the media control function, where the configuration update notification message carries the new content report configuration information or acquiring information thereof. The method of the present invention avoids using the message body of the SIP message to transmit the content report configuration information, is compliant and compatible with logic for processing a SIP INFO message specified in the RFC 2976.
Abstract:
The present invention discloses a video encoding and decoding method, apparatus and system, where the video encoding method includes: determining an independently decodable view in a to-be-encoded picture according to a configuration file corresponding to the video; dividing the picture into at least two tiles, where an area corresponding to one or more tiles that cover the independently decodable view is an independently decodable area; generating an auxiliary message corresponding to the picture, where the auxiliary message includes a location identifier of the independently decodable area; and encoding all tiles included in the picture to form an encoded video bitstream, where the encoded video bitstream includes the auxiliary message. Decoding this encoded video bitstream can lower a requirement for performance of a decoder and improve decoding efficiency.
Abstract:
A method and an apparatus for supporting time shift playback in an adaptive HTTP streaming transmission solution are disclosed. The method includes: sending a live MPD request message to a media server; receiving a response message that includes MPD for a current time period, where the MPD further includes media presentation information for another time period; determining that a moment of a media segment to be requested currently exceeds a time range corresponding to the MPD; acquiring the corresponding MPD according to the media presentation information corresponding to the media segment, and requesting, according to the acquired corresponding MPD, the media segment. In this manner, a client supports time shift playback of a larger time range, and at the same time, the size of the MPD is capable of remaining in an acceptable range.
Abstract:
An electronic device detects a first operation of a user; the electronic device obtains a fingerprint image and a touch signal in response to the first operation; and the electronic device determines, based on the fingerprint image and the touch signal, that the fingerprint image is a fingerprint image of a real finger or a fingerprint image of a fake finger.
Abstract:
A video processing method, a terminal, and a server, where the method includes receiving a media presentation description (MPD) file sent by the server, where the MPD file includes region information of a region that can be independently decoded in the video, determining, according to the region information, a region used for playback on a terminal from the region that can be independently decoded, determining a to-be-acquired media segment according to the MPD file, acquiring a location in which data content is stored in the media segment, acquiring, according to the location in which the data content is stored in the media segment, the data content from the media segment stored in the server, and playing a picture of the region for the playback on the terminal. Therefore, it is not required to independently store a partial video on the server, thereby saving a storage resource of the server.