A method of synchronizing video and audio when recording with a video recording device and an audio recording device configured for wireless data communication with each other including activating a recording at the video recording device, sending an audio recording command from the video recording device to the audio recording device, storing a recorded video data stream in a memory of the video recording device, receiving an audio data stream from the audio recording device at the video recording device and storing in the memory of the video recording device, determining a delay of the stored audio data stream relative to the stored video data stream, and joining the stored audio data stream and the stored video data stream together, taking the determined delay into consideration, in order to provide a recording data stream with synchronized video and audio.

This application discloses a video data processing method and apparatus and a storage medium. The method includes: displaying a video playing interface corresponding to video data, and recognizing an operation gesture corresponding to a slide operation, determining, according to the slide operation, whether the operation gesture belongs to a first gesture type, in response to determining that the operation gesture belongs to the first gesture type, obtaining a start trigger position and an end trigger position of the slide operation from a slide trajectory of the slide operation, and determining, based on the start and end trigger positions, a slide direction indicated by the slide trajectory, adjusting, based on the slide direction and a progress control direction of a progress bar in the video playing interface, the playing progress of the video data by the preset progress duration, and displaying, on the video playing interface, playing-progress-adjusted video data.

Example systems, apparatus, and methods receive audio information including a plurality of frames from a source device, wherein each frame of the plurality of frames includes one or more audio samples and a time stamp indicating when to play the one or more audio samples of the respective frame. In an example, the time stamp is updated for each of the plurality of frames using a time differential value determined between clock information received from the source device and clock information associated with the device. The updated time stamp is stored for each of the plurality of frames, and the audio information is output based on the plurality of frames and associated updated time stamps. A number of samples per frame to be output is adjusted based on a comparison between the updated time stamp for the frame and a predicted time value for play back of the frame.

Techniques are described for providing alternative media content to a client device along with primary media content.

A messaging channel is embedded directly into a media stream. Messages delivered via the embedded messaging channel are extracted at a client media player. According to a variant embodiment, and in lieu of embedding all of the message data in the media stream, only a coordination index is injected, and the message data is sent separately and merged into the media stream downstream (at the client media player) based on the coordination index. In one example embodiment, multiple data streams (each potentially with different content intended for a particular “type” or class of user) are transmitted alongside the video stream in which the coordination index (e.g., a sequence number) has been injected into a video frame. Based on a user's service level, a particular one of the multiple data streams is released when the sequence number appears in the video frame, and the data in that stream is associated with the media.

A computer system including a server having a processor and a memory, the memory having a video database and a music database, the video database storing at least one video file having a plurality of video file markers, and the music database storing at least one music file having a plurality of music file markers, wherein the server receives and decodes encoded data from computer readable code, identifies and retrieves from the music database a music file based on the decoded data, synchronizes the retrieved music file with one of the video files by aligning the video file markers of the video file with the music file markers for the retrieved music file to produce a synchronized video-music file, and transmits the synchronized video-music file to a display, wherein the video file markers are generated for each video file and the music file markers are generated for each music file.

A server offloads graphics effects processing to a client device with graphics processing resources by determining a modification to a graphics effects operation, generating a portion of a rendered video stream using the modification to the graphics effects operation, and providing an encoded representation of the portion of the rendered video stream to the client device, along with metadata representing the modification implemented. The client device decodes the encoded representation to recover the portion of the rendered video stream and selectively performs a graphics effects operation on the recovered portion to at least partially revert the resulting graphics effects for the portion to the intended effects without the modification implemented by the server.

The systems and methods are described herein for playback of content based on progress point information. The systems and methods detect nearby media devices to transmit or request progress point information. Based on the communicated progress point information, the system may generate an option to play back content at a point within the content up to which content was last consumed. When content providers offer different versions of one content item and the user does not select to play back content from the content provider associated with the progress point information, the system determines a proper playback point in other content providers.

A system for the production of an audiovisual content includes one or more audiovisual sources adapted to generate one or more audiovisual signals at a first quality level; at least one audiovisual processing apparatus operatively connected to the audiovisual sources; at least one remote control unit operatively connected to the audiovisual processing apparatus via a data communication network; the audiovisual processing apparatus being configured for receiving the one or more audiovisual signals at a first quality level from the one or more audiovisual sources; generating at least one copy of the one or more audiovisual signals, the copy being at a second quality level; sending the copy of the one or more audiovisual signals to the remote control unit via the data communication network; receiving, via the data communication network, at least one control signal containing one or more instructions from the remote control unit; generating an audiovisual content on the basis of the one or more audiovisual signals as a function of the one or more instructions.

This application discloses a video source switching method, a playing method, an apparatus, a device, and a storage medium. The video source switching method includes obtaining switching information; determining a first key frame of a first video source according to the switching information, the first key frame being a next key frame of a current playing time of the first video source; querying a first time value of the first key frame; identifying a second video source according to the switching information; and switching video sources if a distance between a current time value of the second video source and the first time value is less than or equal to a threshold.