example/a2dp_sink_demo: use cod 20404 - headphones

example/a2dp_sink/source_demo: add missing cast

a2dp_sink_demo: fix windows build

example/a2dp_sink: use new sbc decoder api

example: use sdp_create_service_record_handle() for sdp record and assert sdp record buffer is large enough, fixes #489

example/a2dp_sink_demo: fix sending of delay report / cache local seid

a2dp_sink: drop unused local seid argument in a2dp_sink_establish_stream

example/a2dp_sink_demo: add missing default case

example/a2dp_sink_demo: support cover art

example/a2dp_sink_demo: move samplerate compensation init to fix measurement bias

example/a2dp_sink_demo: remove local variable

example/a2dp_sink_demo: improve documentation, use sdp record handle generator

example/a2dp_sink_demo: list supported remote AVRCP Target notifications

example/a2dp_sink_demo: improve stdout

example/a2dp_sink_demo: assign command status

a2dp_sink_demo: add HAVE_BTSTACK_AUDIO_EFFECTIVE_SAMPLERATE

a2dp_sink_demo: use built-in btstack_sample_rate_compensation module

a2dp_sink_demo: fix start/stop, discard pending data on stream stop

a2dp_sink_demo: adding sample rate compensation

a2dp:emit A2DP_SUBEVENT_STREAM_ESTABLISHED with if connection fails

a2dp_sink_demo: report failed outgoing connection

examples: unify status stdout format

example/a2dp_sink: pass media config by pointer

example/a2dp_sink: fix tracking of avrcp playback status

example/a2dp_sink: separate stream_endpoint, a2cp_connection and avrcp_connection, track stream and play states