Qualcomm Incorporated

Aditya Bhuvanagiri

Ashish Bajaj

Ajit Deepak Gupte

Venkata Naga Poleswara Rao Karuchula

Chandra Mouli Polisetty

Rajeshwar Kurapaty

Aravind Korlepara

Surya Manikya Phanindra Kalanadhabhatla

Praneeth Paladugu

R V Jagannadha Rao Doddi

An apparatus configured to record and process video information includes a memory, display, and a processor in communication with the memory and the display. The memory is configured to store video data. The display is configured to display a preview of the video data. The processor is configured to record the video data at a first frame rate, process the recorded video data via removing one or more frames from the recorded video data, the processed video data having a second frame rate that is lower than the first frame rate, and generate the preview to be displayed by the display based at least in part on the processed video data.

Device and method for processing video data

This disclosure relates to techniques for preventing or reducing the appearance of undesirable color and/or gray patches in decoded video sequences due to generation of out-of-bound quantized transform coefficients during video encoding. Insufficient compression of a video block according to a selected encoding mode and a selected quantization parameter (QP) value may result in the generation and subsequent clipping of out-of-bound quantized transform coefficients for a given video coding standard. The techniques include predicting whether out-of-bound quantized transform coefficients will be generated for a video block, and adjusting at least one of the selected encoding mode and the selected QP value for the video block to prevent the generation of out-of-bound quantized transform coefficients. According to the techniques, the generation of out-of-bound quantized transform coefficients for a video block may be predicted based on difference parameter threshold values, which may be pre-generated and stored in a video encoder.

Color/gray patch prevention for video coding

A video encoder may reduce bandwidth consumption by skipping encoding of or reducing an encoding rate of video frames corresponding to silent audio frames, that is, audio frames that do not include speech data. In one example, an apparatus includes a video encoder comprising a coding unit configured to encode video data in a first or second mode and a mode select unit configured to receive an indication of whether encoded audio data corresponding to the video data to be encoded includes speech data. When the audio data includes speech data, the mode select unit selects the first mode, and when the audio data does not include speech data, the mode select unit selects the second mode. The second mode consumes relatively less bandwidth, e.g., by reducing a bitrate, modifying a quantization parameter to increase quantization, and/or reducing a frame rate relative to the first mode.

Controlling video encoding using audio information

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Hyderabad Telangana, India

Aditya Bhuvanagiri