7.2. Interleaved Mode

7.2. Interleaved Mode

The general concept behind these de-packetization rules is to reorder NAL units from transmission order to the NAL unit decoding order.

The receiver includes a receiver buffer, which is used to compensate for transmission delay jitter and to reorder NAL units from transmission order to the NAL unit decoding order. In this section, the receiver operation is described under the assumption that there is no transmission delay jitter. To differentiate the receiver buffer from a practical receiver buffer that is also used for compensation of transmission delay jitter, the receiver buffer is hereafter called the de-interleaving buffer in this section. Receivers SHOULD also prepare for transmission delay jitter, i.e., either reserve separate buffers for transmission delay jitter buffering and de-interleaving buffering or use a receiver buffer for both transmission delay jitter and de-interleaving. Moreover, receivers SHOULD take transmission delay jitter into account in the buffering operation, e.g., by additional initial buffering before starting of decoding and playback.

This section is organized as follows: Subsection 7.2.1 presents how to calculate the size of the de-interleaving buffer. Subsection 7.2.2 specifies the receiver process on how to organize received NAL units to the NAL unit decoding order.