Intra-coded video frame caching for video telephony sessions

A device comprising:

• a communication interface configured to receive, over a communications channel, video frame data of a video telephony (VT) call;
• a memory;
• a video decoder in communication with the memory;
• and
• one or more processors in communication with the memory and the video decoder, the one or more processors being configured to:
• determine that the video frame data received by the communication interface comprises i-frame data;
• determine that the video decoder is in a pre-initialized state, the pre-initialized state representing a condition in which the video decoder cannot render the received video frame data for display;
• and
• store, based on the video frame data received by the communication interface comprising the i-frame data and the video decoder being in the pre-initialized state, the i-frame data to the memory.

An apparatus for processing video frame data of a video telephony (VT) call, the apparatus comprising:

• means for receiving the video frame data of the VT call over a communications channel;
• means for determining that the received video frame data comprises i-frame data;
• means for determining that a video decoder of the apparatus is in a pre-initialized state, the pre-initialized state representing a condition in which the video decoder cannot render the received video frame data for display;
• and
• means for storing, based on the received video frame data comprising the i-frame data and the video decoder being in the pre-initialized state, the i-frame data to a buffer of the apparatus.

A non-transitory computer-readable storage medium encoded with instructions that, when executed, cause one or more processors of a device for processing video frame data of a video telephony (VT) call to:

• receive the video frame data of the VT call over a communications channel;
• determine that the received video frame data comprises i-frame data;
• determine that a video decoder of the device is in a pre-initialized state, the pre-initialized state representing a condition in which the video decoder cannot render the received video frame data for display;
• and
• based on the received video frame data comprising the i-frame data and the video decoder being in the pre-initialized state, store the i-frame data to a buffer of the device.