Communication scheme for distributed video coding

A device comprising:

• a memory configured to store video data;
• a communication interface;
• and
• one or more processors implemented in circuitry and coupled to the memory, the one or more processors configured to:
• obtain, from a transmitting device, error correction data, wherein the error correction data provides error correction information and is generated based on first encoded video data of one or more blocks of a picture of the video data;
• generate prediction data for the picture using one or more coding tools not used for generating the first encoded video data of the one or more blocks of the picture, wherein the prediction data for the picture comprises predictions of the one or more blocks of the picture based at least in part on one or more blocks of one or more previously reconstructed pictures of the video data;
• calculate one or more quantization parameters based on an entropy ratio of quantized transform coefficients of the prediction data and unquantized transform coefficients of the prediction data;
• generate second encoded video data based on the prediction data for the picture, wherein generating the second encoded video data comprises using the one or more quantization parameters to quantize transform coefficients generated based on the prediction data for the picture;
• generate error-corrected encoded video data using the error correction data to perform an error correction operation on the second encoded video data;
• and
• perform a reconstruction operation that reconstructs the one or more blocks of the picture based on the error-corrected encoded video data, wherein:
• the reconstruction operation is controlled by values of one or more parameters;
• and
• to perform the reconstruction operation, the one or more processors are configured to:
• use the one or more quantization parameters to inverse quantize transform coefficients of the error-corrected encoded video data,
• apply an inverse transform to the transform coefficients to obtain residual data;
• and
• use the prediction data and the residual data to reconstruct the picture.

A non-transitory computer-readable data storage medium having instructions stored thereon that, when executed, cause a receiving device to

• obtain, from a transmitting device, error correction data, wherein the error correction data provides error correction information and is generated based on first encoded video data of one or more blocks of a picture of video data;
• generate prediction data for the picture using one or more coding tools not used for generating the first encoded video data of the one or more blocks of the picture, wherein the prediction data for the picture comprises predictions of the one or more blocks of the picture based at least in part on blocks of one or more previously reconstructed pictures of the video data;
• calculate one or more quantization parameters based on an entropy ratio of quantized transform coefficients of the prediction data and unquantized transform coefficients of the prediction data;
• generate second encoded video data based on the prediction data for the picture, wherein generating the second encoded video data comprises using the one or more quantization parameters to quantize transform coefficients generated based on the prediction data for the picture;
• generate error-corrected encoded video data using the error correction data to perform an error correction operation on the second encoded video data;
• and
• perform a reconstruction operation that reconstructs the one or more blocks of the picture based on the error-corrected encoded video data, wherein:
• the reconstruction operation is controlled by values of one or more parameters, and
• to perform the reconstruction operation, execution of the instructions causes the receiving device to:
• use the one or more quantization parameters to inverse quantize transform coefficients of the error-corrected encoded video data,
• apply an inverse transform to the transform coefficients to obtain residual data;
• and
• use the prediction data and the residual data to reconstruct the picture.