摘要:
A moving image distribution server for distributing to a reproducing apparatus moving image data including video data and audio data and capable of prescribing decoding times and reproducing times for the video data and the audio data, the moving image distribution server including a data storage unit for storing in advance the moving image data including information as to the decoding times and the reproducing times for the video data and the audio data, a phase adjustment variable storage unit for storing a predetermined phase adjustment variable, and a first rewriter for reading the moving image data stored in the data storage unit, and changing the information included therein as to the decoding times or the reproducing times based on the predetermined phase adjustment variable to adjust the phase relationship between the video data and the audio data.
摘要:
A circuit is used to process video signal from a video sensor. The video signal includes video content signal and synchronization signals. The circuit includes a status register, a data register, and a processor. The status register provides a sampling clock signal to the data register and the video sensor. The sampling clock signal is synchronized with the synchronization signals to sample the video signal. The status register stores the synchronization signals. The data register storing the video content signal. The processor is coupled to the status register and the data register. The processor reads the video content signal from the data register according to the synchronization signals in the status register.
摘要:
A method of operating a multimedia player is provided. The method includes decoding an audio stream of the multimedia player and rendering the decoded audio stream in the multimedia player, updating the media time of the media player with an audio timestamp of the rendered audio stream as the audio stream is rendered, and, while decoding and rendering the audio stream, decoding a video stream and checking the media clock to determine if a video timestamp of the decoded video stream is within a threshold of the media clock time, and if not then adapting post-processing of the video stream to decrease video stream post-processing time.
摘要:
An audio/video system comprises an audio signal processing path having an audio path delay and a video signal processing path having a video path delay. The audio path delay may be different from the video path delay. The audio path delay and/or the video path delay may change, for example because of replacement of a component within the audio signal processing path or the video signal processing path. Delay matching (synchronization) in the audio/video system comprises adjusting the audio path delay to be substantially equal to the video path delay. Matching the audio path delay to the video path delay generally includes adding delay to the signal processing path with the lesser delay.
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 method is disclosed that includes receiving a broadcast signal from a first source, the broadcast signal includes a video component and a first audio component. The method further includes receiving a second audio component from a second source, the second audio component providing audio corresponding to the video component of the broadcast. The method outputs the video component and the second audio component while suppressing the output of the first audio component.
摘要:
To allow viewer to adapt audiovisual content to their attention level, the audiovisual signal processing arrangement (104, 106), comprising an audiovisual signal processing unit (104) arranged to receive from a control unit (106) at least one complexity setting value (S_Inf-c) specifying a complexity of information in an audiovisual signal, the audiovisual signal processing unit (104) being arranged to process an inputted audiovisual signal S(A, V) to decrease or increase its information complexity as determined by the complexity setting value (S_Inf-c), wherein the audiovisual signal processing unit (104) is arranged to process at least an audio component (A) of the audiovisual signal S(A, V).
摘要:
This invention relates to a device and a method of generating a first and a second fingerprint (102,104) usable for synchronisation of at least two signals (101,103) and corresponding method and device for synchronising two or more signals. A fingerprint pair is generated on the basis of a segment of a first signal e.g. an audio signal and of a segment of a second signal e.g. a video signal at each synchronisation time point. The generated fingerprint pair(s) are stored in a database (203) and communicated or distributed to a synchronisation device (303). During synchronisation, fingerprint(s) of the audio signal and fingerprint(s) of the video signal to be synchronised are generated and matched against fingerprints in the database. When a match is found, the fingerprints also determine the synchronisation time point, which is used to synchronise the two signals. In this way, a simple, reliable and efficient way of synchronising at least two signals is obtained. Further, this is enabled without modifying either the first and second signal (or subsequent signals). The signals may even be distorted or changed to some extent while still enabling synchronisation.
摘要:
An apparatus for processing an informational signal includes a first processing section for receiving the informational signal, executing a first processing on the informational signal, and outputting the processed informational signal. The apparatus also includes a second processing section, which is located at a posterior stage of the first processing section, for receiving the processed informational signal and executing a second processing on the processed informational signal. The apparatus further includes transmitting device for transmitting meta-information corresponding to each predetermined period of time in the informational signal from the first processing section to the second processing section. The processing in the second processing section is controlled based on the meta-information transmitted by the transmitting device.
摘要:
Some embodiments of the invention provide a method for synchronizing an audio stream with a video stream. This method involves searching in the audio stream for audio data having values that match a distinct set of audio data values and synchronizing the audio stream with the video stream based on the search. In some embodiments, the distinct set of audio data values is defined by a predetermined distinct tone. In other embodiments, the distinct set of audio data values is defined by audio data contained in the video stream.
摘要:
A multimedia processor includes an audio processor configured to process an audio input signal to generate an audio output signal and an assistant signal, and a video processor coupled with the audio processor and configured to process video input signal and the assistant signal to generate a video output signal simultaneously according to the video input signal and the assistant signal. Provided with the assistant signal, the video processor acquires more video processing-related information for rendering video content in a more realistic manner. Mal-motion detection can thus be prevented, and video quality can be improved.