After a command to stop recording a video is received, an image capture device may buffer footage in a buffer memory. The buffer memory may be used as a post-capture cache. The footage buffered in the buffer memory may be appended to the end of previously captured footage, appended to the beginning of subsequently captured footage, and/or used to bridge two separately captured footage.

Real-time latency of audio/video streams is identified. Signatures of a reference audio/video stream and signatures of a test audio/video stream are buffered. A needle is constructed as a vector including a set of signatures of the reference audio/video stream. Correlations of the needle to successive vectors of sets of signatures of the test audio/video stream are computed using a correlation function that calculates relatedness of the needle vector to each of the successive vectors of the test audio/video stream. A synchronization offset is identified between the test stream and the reference stream according to a maximum correlation point of the correlations of the needle to the successive sets of signatures of the test audio/video stream. The reference audio/video stream and the test audio/video stream are aligned according to the synchronization offset.

Methods, devices, systems and computer software/program code products include techniques for creating a deep frame buffer, such techniques being implementable in conjunction with an apparatus comprising a main camera and an array of buddy cameras, the main camera and the buddy cameras being operable to capture images; and techniques for creating at least one depth buffer, such techniques being implementable in conjunction with an apparatus comprising at least two cameras.

After a command to stop recording a video is received, an image capture device may buffer footage in a buffer memory. The buffer memory may be used as a post-capture cache. The footage buffered in the buffer memory may be appended to the end of previously captured footage, appended to the beginning of subsequently captured footage, and/or used to bridge two separately captured footage.

An input circuit writes image data into a line buffer. An output circuit reads pixel data of a pixel to be sampled among the pixel data, the pixel specified correspondingly to a shrinking ratio. Further, with a throughput obtained by multiplying a throughput of the output circuit by a square of an inverse number of the shrinking ratio, the input circuit skips another pixel than the pixel to be sampled among the pixel data of an input block of a predetermined size that extends over lines of an inverse number of the shrinking ratio, and writes the pixel data into the line buffer. Upon writing pixel data of an adjacent input block of the input block in a secondary scanning direction into the line buffer, the output circuit reads from the line buffer the pixel data of the pixel to be sampled and continuously outputs the pixel data.

Techniques for selective display frame fetching can include receiving or fetching rendered display frames by a display engine. The display engine can obtain an indication of a new frame and, in response to the indication of the new frame not including an indication of a flip completion event: (i) fill the display buffer with the new frame; (ii) scan out the new frame from the display buffer to a display port; and (iii) apply an adaptive contrast and backlight enhancement based on a histogram of changes in the new frame.

A data processing method of a multimedia device is disclosed. The multimedia device pauses playback of multimedia data in response to a pause signal. The method includes: buffering the multimedia data before the pause signal is received to obtain prerecorded multimedia data; writing the prerecorded multimedia data into a storage unit in response to the pause signal; reading the prerecorded multimedia data from the storage unit in response to a playback signal; and playing the prerecorded multimedia data.

Image capture devices and methods may be used to pre-buffer media storage. The pre-buffering method includes recording an image capture segment in a circular buffer. The circular buffer includes a number of recordable segments. The pre-buffering method includes determining whether a key moment command is received. If a key moment command is not received, the method includes recording a next image capture segment in a next adjacent recordable segment of the circular buffer if the next adjacent recordable segment of the predetermined number of recordable segments is available. If a key moment command is not received, the method includes overwriting an oldest recordable segment if the next adjacent recordable segment of the predetermined number of recordable segments is not available. If a key moment command is received, the pre-buffering method includes marking a wrap point in the circular buffer and switching from recording in the circular buffer to linear recording.

Video systems with video receivers for receiving video signals transmitted in analog format over a video link are described. An example video receiver includes an interferer identification circuit and an interferer removal circuit. The interferer identification circuit is configured to identify a periodic interference signal (e.g., from one or more of vertical blanking intervals (VBIs)) of a received video signal. The interferer removal circuit is configured to generate a filtered video signal, where generation of the filtered video signal includes, for each line of a given frame of the received video signal, generating an adjusted interference signal by adjusting a phase of the identified interference signal to match a phase of a periodic noise signal in at least a portion of a horizontal blanking interval (HBI) associated with the line, and subtracting the adjusted interference signal from a plurality of active pixel values of the line.

Techniques for selective display frame fetching are disclosed. Some example techniques disclosed herein cause at least one processor to at least determine if an indication of a new frame includes an indication of a flip event, and identify one or more dirty regions of the new frame based on the flip event. Disclosed example techniques also cause the at least one processor to fill a display buffer with the one or more dirty regions of the new frame, scan out the one or more dirty regions of the new frame from the display buffer to a display port, and apply an adaptive contrast and backlight enhancement based on a histogram of changes in the new frame.