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The branch, zecke/features/dsp-transcoding has been created at 9b090fd5ab2f6b36a60b41a4f4ac9bd435f18582 (commit)

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commit 9b090fd5ab2f6b36a60b41a4f4ac9bd435f18582 Author: Holger Hans Peter Freyther holger@moiji-mobile.com Date: Mon Mar 7 21:42:19 2016 +0100

mgcp: Remove the old MGCP based transcoding interface

Back in the day we worked around a field proven jitter buffer by transcoding AMR to AMR with the MTN4200 and by this fixing RTP timing as this device had:

a.) A working and stable time (generating RTP every N ms) b.) A working jitter buffer

The code has probably rotted, it never retried MGCP commands sent to the transcoder and it is not deployed either. Simplify the code by removing it. If we ever need it back we can use the new transcoding API to keep the state there. I think this code will not be missed but the PerformanceTechnology Hard- and Firmware was rather nice.

http://cgit.osmocom.org/openbsc/commit/?id=4dac5808674a6a0fc36b76012e93f4a0d...

commit 4dac5808674a6a0fc36b76012e93f4a0d16c997e Author: Holger Hans Peter Freyther holger@moiji-mobile.com Date: Mon Mar 7 21:17:59 2016 +0100

mgcp: Simplify and shorten routine names

Now they are included in a struct we can just call them setup, process and get_net_downlink_format to manage the lifetime.

http://cgit.osmocom.org/openbsc/commit/?id=2c8dfd8b7ca8546d063cbed7f3881f863...

commit 2c8dfd8b7ca8546d063cbed7f3881f863f1f0a65 Author: Holger Hans Peter Freyther holger@moiji-mobile.com Date: Mon Mar 7 21:12:32 2016 +0100

mgcp: Move the transcoding routines into a struct

We will have the NOOP implementation (e.g. used by the NAT), the SW implementation (using software codecs), a HW assisted one that will use a DSP to do transcoding and in theory the RTP based one (but I will remove that code).

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