Conventional and neural network codecs for random access video coding

A device for decoding video data, the device comprising:

• a memory configured to store video data;
• and
• a processing system comprising one or more processors implemented in circuitry, the processing system being configured to:
• determine that a first temporal layer identifier of a first picture of the video data is included in a first set of temporal layers;
• in response to the first temporal layer identifier being included in the first set of temporal layers, decode blocks of the first picture on a block by block basis, without performing neural network-based decoding of the first picture;
• determine that a second temporal layer identifier of a second picture of the video data is included in a second set of temporal layers, the second set of temporal layers being higher than the first set of temporal layers;
• and
• in response to the second temporal layer identifier being included in the second set of temporal layers, execute a neural network-based video decoder to decode the second picture, without performing block-based prediction and residual decoding of the second picture.

A device for decoding video data, the device comprising:

• means for determining that a first temporal layer identifier of a first picture of video data is included in a first set of temporal layers;
• means for decoding blocks of the first picture on a block by block basis, without performing neural network-based decoding of the first picture, in response to the first temporal layer identifier being included in the first set of temporal layers;
• means for determining that a second temporal layer identifier of a second picture of the video data is included in a second set of temporal layers, the second set of temporal layers being higher than the first set of temporal layers;
• and
• means for decoding the second picture using a neural network-based video decoder, without performing block-based prediction and residual decoding of the second picture, in response to the second temporal layer identifier being included in the second set of temporal layers.