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* Get rid of some warningsMaarten Bosmans2011-03-201-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mostly warnings about unused stuff. Furthermore, the first hunk is a fix for the change in 177948a6. Finally, comment in AEC_dtd was translated and the code simplified slightly. CC module_bluetooth_device_la-module-bluetooth-device.lo modules/bluetooth/module-bluetooth-device.c: In function ‘a2dp_process_render’: modules/bluetooth/module-bluetooth-device.c:1335:30: warning: pointer targets in passing argument 6 of ‘sbc_encode’ differ in signedness [-Wpointer-sign] ../src/modules/bluetooth/sbc/sbc.h:92:9: note: expected ‘ssize_t *’ but argument is of type ‘size_t *’ CC module_rygel_media_server_la-module-rygel-media-server.lo modules/module-rygel-media-server.c:383:13: warning: ‘append_property_dict_entry_object_array’ defined but not used [-Wunused-function] CC module_echo_cancel_la-adrian-aec.lo modules/echo-cancel/adrian-aec.h:360:15: warning: ‘AEC_getambient’ defined but not used [-Wunused-function] modules/echo-cancel/adrian-aec.h:368:14: warning: ‘AEC_setgain’ defined but not used [-Wunused-function] modules/echo-cancel/adrian-aec.h:374:14: warning: ‘AEC_setaes’ defined but not used [-Wunused-function] modules/echo-cancel/adrian-aec.h:377:16: warning: ‘AEC_max_dotp_xf_xf’ declared ‘static’ but never defined [-Wunused-function] CC module_echo_cancel_la-module-echo-cancel.lo modules/echo-cancel/module-echo-cancel.c: In function ‘time_callback’: modules/echo-cancel/module-echo-cancel.c:266:12: warning: variable ‘fs’ set but not used [-Wunused-but-set-variable] CC module-virtual-sink.lo modules/module-virtual-sink.c: In function ‘sink_input_pop_cb’: modules/module-virtual-sink.c:206:15: warning: variable ‘current_latency’ set but not used [-Wunused-but-set-variable]
* echo-cancel: orc-ify some bits for optimisationArun Raghavan2010-09-231-2/+2
| | | | | This uses Orc to optimise an inner loop in the core NLMS function of the Adrian echo canceller.
* echo-cancel: Add SSE optimisation to the adrian moduleArun Raghavan2010-09-231-1/+11
| | | | | | Optimises the core inner-product function, which takes the most CPU. The SSE-optimised bits of the adrian echo canceller only if the CPU that PA is running on actually supports SSE.
* echo-cancel: Add alternative echo-cancellation implementationArun Raghavan2010-09-071-0/+370
This adds Andre Adrian's AEC implementation from his intercom project (http://andreadrian.de/intercom/) as an alternative to the speex echo cancellation routines. Since the implementation was in C++ and not in the form of a library, I have converted the code to C and made a local copy of the implementation. The implementation actually works on floating point data, so we can tweak it to work with both integer and floating point samples (currently we just use S16LE).