Several ways are provided for a viewer of a movie to create a deep tag, that is, a bookmark for a segment of the movie. The deep tag can be associated with descriptive text and sent to an address provided by the viewer, either an e-mail address or an instant messaging address. Additionally, before the deep tag is created, it can be checked whether the content owner of the movie is known. If known, the content owner's rules, if any, regarding deep tagging are followed. If unknown, a set of registered content owners can be alerted of the presence of new content. When ownership of the new content is established, the already-created deep tags can be updated in accordance with the content owner's rules, if any, regarding deep tagging.

A device for retrieving media includes a memory configured to store media data of a media presentation; and one or more processors implemented in circuitry and configured to: retrieve a manifest file for a media presentation indicating that container parsing of media data of a bitstream can be started at a resync point of a segment of a representation of the media presentation, the resync point being at a position other than a start of the segment and representing a point at which the container parsing of the media data of the bitstream can be started; use the manifest file to form a request to retrieve the media data of the representation starting at the resync point; send the request to initiate retrieval of the media data of the media presentation starting at the resync point; and present the retrieved media data.

Provided is a method for transmitting a broadcast signal. The method includes generating a plurality of input packets including broadcast data, generating at least one link layer packet using the input packets, wherein a header of the link layer packet includes packet type information and packet configuration information, the packet type information indicates a type of an input packet included in a payload of the link layer packet, and the packet configuration information indicates a payload configuration of the link layer packet, generating a broadcast signal using the link layer packet, and transmitting the broadcast signal.

Provided is a method for transmitting a broadcast signal. The method includes generating a plurality of input packets including broadcast data, generating at least one link layer packet using the input packets, wherein a header of the link layer packet includes packet type information and packet configuration information, the packet type information indicates a type of an input packet included in a payload of the link layer packet, and the packet configuration information indicates a payload configuration of the link layer packet, generating a broadcast signal using the link layer packet, and transmitting the broadcast signal.

In one aspect, an example method includes (i) receiving, by a computing system, media content; (ii) generating, by the computing system, a fingerprint of a portion of the received media content; (iii) determining, by the computing system, that the received media content has a predefined characteristic; (iv) responsive to determining that the received media content has the predefined characteristic, transmitting, by the computing system, the generated fingerprint to a content identification server to identify the portion of the received media content; and (v) performing an action based on the identified portion of media content.

In one aspect, an example method includes (i) receiving, by a computing system, media content; (ii) generating, by the computing system, a fingerprint of a portion of the received media content; (iii) determining, by the computing system, that the received media content has a predefined characteristic; (iv) responsive to determining that the received media content has the predefined characteristic, transmitting, by the computing system, the generated fingerprint to a content identification server to identify the portion of the received media content; and (v) performing an action based on the identified portion of media content.

A video playing method, apparatus and electronic device. The method comprises: obtaining to-be-played video frames; inputting the obtained to-be-played video frames into a preset decoder, and decoding the to-be-played video frames by the preset decoder to obtain decoded to-be-played video frames; storing the decoded to-be-played video frames as texture data in a texture storage area of a graphic processing unit; determining, from the decoded to-be-played video frames stored in the texture storage area, a decoded to-be-played video frame that satisfies a rendering condition as a to-be-rendered video frame; rendering and the determined to-be-rendered video frames by the graphic processing unit and playing the rendered video frame. With the embodiments of the present application, rendering speed of a graphic processing unit (GPU) can be increased to a certain extent. Therefore, video playing performance of the electronic device can be improved.

Devices, computer-readable media, and methods for presenting segments of at least one video program in accordance with a definition document are disclosed. For example, a processor may load a definition document for at least one video program. The definition document may specify segments of the at least one video program for presentation and further specify segment types for the segments. The segment types may identify whether a segment is to include video content, include audio content, or include both video and audio content. The processor may further obtain the at least one video program, present a first segment of the at least one video program in accordance with the definition document, and present a second segment of the plurality of segments of the at least one video program in accordance with the definition document.

Devices, computer-readable media, and methods for presenting segments of at least one video program in accordance with a definition document are disclosed. For example, a processor may load a definition document for at least one video program. The definition document may specify segments of the at least one video program for presentation and further specify segment types for the segments. The segment types may identify whether a segment is to include video content, include audio content, or include both video and audio content. The processor may further obtain the at least one video program, present a first segment of the at least one video program in accordance with the definition document, and present a second segment of the plurality of segments of the at least one video program in accordance with the definition document.

An example device for processing media data is configured to parse a bitstream including the media data, the bitstream being formatted according to Common Media Application Format (CMAF), detect, during the parsing, a file type (FTYP) value for a CMAF track file of the bitstream, determine that a CMAF header of the CMAF track file starts with the FTYP value, and process one or more CMAF fragments following the CMAF header of the CMAF track file. The device may additionally be configured to detect one or more segment type (STYP) values in the bitstream, determine that each of the one or more STYP values corresponds to a start of a respective one of the CMAF fragments, and process each of the CMAF fragments starting from the corresponding STYP value.