ffd20f3f1c
This patch adds the counter field to the osmux header, so we can reduce the size of the batch even further, eg. osmuxhdr (ctr=3) speech speech speech osmuxhdr (ctr=2) speech speech ... The new header is the following: 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | FT | CTR |F|Q| SeqNR | Circuit ID |AMR-FT |AMR-CMR| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ The counter field is 3 bits long, thus, we can batch up to 8 RTP speech frames into one single batch per circuit ID. I have also removed the RTP marker, since it can be reconstructed from the AMR information. Moreover, the entire workflow has been also reworked. Whenever a packet arrives, we introduce it into the batch list. This batch list contains a list of RTP messages ordered by RTP SSRC. Then, once the batch timer expires or the it gets full, we build the batch from the list of RTP messages. Note that this allows us to put several speech frame into one single osmux header without actually worrying about the amount of messages that we'll receive. The functions that reconstruct the RTP messages has been also adjusted. Now, it returns a list of RTP messages per RTP SSRC that has been extracted from the batch. |
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| .. | ||
| channel | ||
| Makefile.am | ||
| amr.c | ||
| channel.c | ||
| datagram.c | ||
| ipa.c | ||
| osmux.c | ||
| rs232.c | ||
| rtp.c | ||
| stream.c | ||