In one aspect, a method is performed by a computing system that is in communication with a content-presentation device, where the content-presentation device is scheduled to perform, at a modification start-time, a content-modification operation that comprises modifying a modifiable content-segment that the content-presentation device is scheduled to receive. The method includes determining that the content-presentation device has detected, within a predefined time period after the modification start-time and during performance of the content-modification operation, a mismatch between reference fingerprint data representing the modifiable content-segment and query fingerprint data representing content received by the content-presentation device from a tuner device connected to the content-presentation device. The method also includes determining that the mismatch is due to the tuner device having modified the modifiable content-segment before the modification start-time and, in response to determining that the mismatch is due to the tuner device having modified the modifiable content-segment before the modification start-time, performing an action.

Systems and methods are provided for obtaining a set of images representing a view of a geographic region to be compressed, the set of images including a first image and a second image. A first image file can be generated based on the set of images, wherein the first image is encoded in a first color channel associated with the image file, and wherein the second image is encoded in a second color channel associated with the image file. A video file can be generated based at least in part on the image file. The video file can be provided to a client device over one or more computer networks.

The methods and systems described herein aid users by providing thorough and efficient content consumption. For example, the methods and systems buffer content segments related to a current portion of the content that the system is generating for display. The methods and systems determine a characteristic of the current portion of the content and related content segments based on the characteristic. Confidence scores are determined by the systems and methods for each of the related content segments, and one or more related content segments with higher confidence scores are buffered in memory. Accordingly, the methods and systems described herein provide a thorough viewing of content through related segments that are buffered in memory for quick access.

In various implementations, a method of presenting video streams at a head-mountable device (HMD) includes generating a first video stream at a first frame rate for a first display portion. In some implementations, the first frame rate indicates a rate at which frames are presented by the first display portion. In various implementations, the method includes generating a second video stream at a second frame rate for a second display portion. In some implementations, the second frame rate indicates a rate at which frames are presented by the second display portion. In some implementations, the second frame rate is within a threshold relative to the first frame rate. In various implementations, the method includes temporally shifting the second video stream relative to the first video stream so that a majority of refresh times of the first display portion are different from refresh times of the second display portion.

In various implementations, a method of presenting video streams at a head-mountable device (HMD) includes generating a first video stream at a first frame rate for a first display portion. In some implementations, the first frame rate indicates a rate at which frames are presented by the first display portion. In various implementations, the method includes generating a second video stream at a second frame rate for a second display portion. In some implementations, the second frame rate indicates a rate at which frames are presented by the second display portion. In some implementations, the second frame rate is within a threshold relative to the first frame rate. In various implementations, the method includes temporally shifting the second video stream relative to the first video stream so that a majority of refresh times of the first display portion are different from refresh times of the second display portion.

A method includes storing multicast transmission data at a peer-to-peer server. The multicast transmission data indicates multicast groups to which network elements are joined. The method includes receiving, at the peer-to-peer server from a first network element, a request related to a previously sent data packet of media content. The method includes determining, at the peer-to-peer server, whether a second network element can be identified, where the second network element was joined to a multicast group associated with the media content when the previously sent data packet was sent. The method also includes, in response to identifying the second network element, sending information identifying the second network element from the peer-to-peer server to the first network element.

A method for transmitting video content segments includes providing Low Frame Rate (LFR) and High Frame Rate (HFR) encoding mode designations for video content segments having static scenes and scenes with motion, respectively. Each video content segment is encoded accordance with its encoding mode designation and then transmitted with its encoding mode designation to enable retrieval and decoding by a decoder. Encoded video content appears as LFR content for processing as LFR content by equipment unaware of the present encoding.

The present application discloses an intelligent processing method and system for video data, wherein, in the method an intelligent camera set a warning rule, the method comprises: the intelligent camera collecting video data and analyzing the collected video data in real time, generating intelligent data if the warning rule is met, which intelligent data contain an encoder identifier and motion trajectory information; the intelligent camera packaging the video data and the intelligent data into a program stream and sending it to a frame analyzing component in a cloud storage system; the frame analyzing component unpacking the received program stream to obtain the video data and the intelligent data, and storing the video data and the intelligent data in storage components respectively; the storage components sending storage address information of the video data and the intelligent data to an index server for recording respectively. The solutions of the present application can perform intelligent processing for the collected video data in real time.

Simplifying subtitle display processing in a variable speed reproduction mode on the receiving side is intended.

A video stream formed with a video packet having coded image data in a payload is generated. A subtitle stream formed with a subtitle packet having subtitle information in a payload is generated. A multiplexed stream including the video stream and the subtitle stream is generated and transmitted. In generating the multiplexed stream, the subtitle packet is arranged at a random access position.

Simplifying subtitle display processing in a variable speed reproduction mode on the receiving side is intended.

A video stream formed with a video packet having coded image data in a payload is generated. A subtitle stream formed with a subtitle packet having subtitle information in a payload is generated. A multiplexed stream including the video stream and the subtitle stream is generated and transmitted. In generating the multiplexed stream, the subtitle packet is arranged at a random access position.