摘要:
A data processing method for a high density multimedia interface (HDMI) includes receiving video and audio data, sampling the receiving data according to a sample clock, outputting a sampling pattern according to the sampled receiving data and the sample clock, comparing the sampling pattern with a plurality of predetermined patterns, deciding the timing sequence of the receiving data when the sampling pattern and one of the plurality of predetermined patterns are the same, and outputting the video and audio data according to the correct timing sequence.
摘要:
A display apparatus and method for processing an image in a display apparatus are provided. The display apparatus includes a display unit, a receiving unit which receives a frame image including a first image and a second image and sync information of the frame image, a determination unit which determines whether the frame image is consistent with a reference pattern using the sync information, and an image processing unit which, if the frame image is inconsistent with the reference pattern, adjusts the frame image based on a level of inconsistency, and a controlling unit which controls the display unit to display the adjusted frame image.
摘要:
A data recovery device and a method thereof for processing a television signal having a plurality of horizontal scan signals are disclosed. The data recovery device includes a reference level processing unit and a data processing circuit. The method for data recovery is by means of the reference level processing unit to generate a plurality of reference levels according to a reference component of each of the horizontal scan signals. And the data processing circuit is used to process the N+1th horizontal scan signal in accordance with the Nth reference level.
摘要:
Systems and methods are operable to correct synchronization between a video stream and an audio stream presented to a user. An exemplary embodiment receives a synchronization correction instruction, wherein the synchronization correction is configured to be initiated by the user; and incrementally adjusts one of the video stream and the audio stream by a synchronization correction, wherein the synchronization correction advances or retards presentation of at least one of the video stream and the audio stream by a predefined duration.
摘要:
A synchronization detector of a video signal processor includes a line buffer, a parameter extraction unit and synchronization detection unit. The line buffer sequentially stores a digital video signal corresponding to an input analog video signal, line by line of the input analog video signal. The parameter extraction unit continuously extracts horizontal synchronization parameters from the digital video signal stored line by line and continuously extracts vertical synchronization parameters from a portion of the digital video signal stored line by line. The synchronization detection unit generates horizontal and vertical synchronization signals of the input analog video signal using time information related to local minimum values of the horizontal synchronization parameters and time information related to local minimum values of the vertical synchronization parameters.
摘要:
Embodiments of the invention are generally directed to video frame synchronization. An embodiment of a method includes receiving a first video data stream from a first source at a first port of a multi-port device, a first video frame of the first video data stream arriving at the first port at a first arrival time, and receiving a second video data stream from a second source at a second port of the multi-port device, a second video frame of the second video data stream arriving at the second port at a second arrival time. The method further includes determining an offset between the first arrival time and the second arrival time, determining one or more correction factors based at least in part on the offset, the one or more correction factors including a first correction factor for the first source, and sending a first command to the first source to modify a time of transmission by the first source of a third video frame following the first frame using the correction factor.
摘要:
Techniques for evaluating media player performance are described. A particular implementation supplies media to a media player where the media includes a video component which has a waveform that alternates between a first video state and a second video state, and an audio component which has a waveform that alternates between a first audio state and a second audio state. In the supplied media the audio and video components are temporally synchronized in transition between respective first and second states. The process further analyzes corresponding output from the media player to determine an extent to which the audio and video components are temporally unsynchronized.
摘要:
An apparatus having a first circuit, a second circuit and a third circuit. The first circuit may be configured to (i) demultiplex a multimedia stream having one or more video and audio streams and (ii) generate one or more video signals and one or more audio data signals in response to demultiplexing the multimedia stream. The multimedia stream may be independent of embedded time stamps. The second circuit may be configured to (i) decode the one or more video data signals and the one or more audio data signals and (ii) generate a video current time signal for each decoded video signal and an audio current time signal for each decoded audio signal. The third circuit may be configured to synchronize the playback of each decoded audio signal and each decoded video signal with the video current time signal and the audio current time signal.
摘要:
Embodiments of the disclosed invention include an apparatus, method, and computer program product for providing a video source with a secondary audio source. For example, in one embodiment, a content provider receives a broadcast signal that includes a video component and an audio component from a content producer. The content provider receives a second audio component that provides audio corresponding to the video component of the broadcast signal. The second audio component is received from a second source, such as, but not limited to, a radio broadcast and/or an internet source. The content producer transmits the video component and the second audio component to a consumer device.
摘要:
A video data generation apparatus generates video data based on audio data and frame image data, which are generated independently of each other. The video data generation apparatus sequentially inputs the audio data at fixed intervals, while sequentially inputting the frame image data in time series at irregular intervals. Simultaneously with input of one frame of frame image data, the video data generation apparatus starts a data acquisition process to obtain next one frame of frame image data. The video data generation apparatus stores audio data, which have been input in a period between a start of the data acquisition process by the data acquirer and input of one frame of frame image data by the data acquisition process, in combination with the frame image data of one frame obtained by the data acquisition process, as one audio image complex data, and generates the video data based on multiple stored audio image complex data.