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authorThierry Bultel <thierry.bultel@iot.bzh>2019-02-13 09:30:58 +0100
committerThierry Bultel <thierry.bultel@iot.bzh>2019-02-13 09:30:58 +0100
commit6c55f920604baa08927740b1595c2d3d021c24e4 (patch)
tree608e7fd8c1eafd0d4175051aea30c2230ebbb774 /plugins/lib/bluealsa/hal-bluealsa.c
parent24391a4b6050819935f66897e49ffdb2fddc714a (diff)
bluealsa plugin: get the sampling rate from the transport
The sampling rate, for both SCO and A2DP, had been harcoded for convenience. But this is not a constant, because it depends on the connected handset. This commit retrieves the sampling rate for each new transport and uses that information as a parameter for the stream creation in the softmixer. Change-Id: I4d30eccba9cc63d7f4e618c571719996a136b4f5 Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
Diffstat (limited to 'plugins/lib/bluealsa/hal-bluealsa.c')
-rw-r--r--plugins/lib/bluealsa/hal-bluealsa.c35
1 files changed, 28 insertions, 7 deletions
diff --git a/plugins/lib/bluealsa/hal-bluealsa.c b/plugins/lib/bluealsa/hal-bluealsa.c
index 10a61ae..05a1540 100644
--- a/plugins/lib/bluealsa/hal-bluealsa.c
+++ b/plugins/lib/bluealsa/hal-bluealsa.c
@@ -32,6 +32,8 @@
#define HAL_BLUEALSA_PLUGIN_NAME "hal-bluealsa"
+#define A2DP_LISTEN_FORMAT "S16_LE"
+
#define SCO_TALK_RATE 44100
#define SCO_TALK_FORMAT "S16_LE"
@@ -373,12 +375,14 @@ fail:
static json_object* halBlueAlsaListenCapture(
const char * listenCaptureS,
json_object * pcmplugParamsJ,
+ json_object * captureParamsJ,
json_object * sourceJ) {
json_object * captureJ = json_object_new_object();
json_object_object_add(captureJ, "uid", json_object_new_string(listenCaptureS));
json_object_object_add(captureJ, "pcmplug_params", pcmplugParamsJ);
+ json_object_object_add(captureJ, "params", captureParamsJ);
json_object_object_add(captureJ, "source", sourceJ);
return captureJ;
@@ -400,11 +404,20 @@ static json_object * halBlueAlsaTalkPlayback(
return playbackJ;
}
-static json_object * halBlueAlsaScoTalkParamsJ() {
+static json_object * halBlueAlsaScoTalkParamsJ(uint32_t sampling) {
json_object * paramsJ = json_object_new_object();
- json_object_object_add(paramsJ, "rate", json_object_new_int(SCO_TALK_RATE));
+ json_object_object_add(paramsJ, "rate", json_object_new_int(sampling));
json_object_object_add(paramsJ, "format", json_object_new_string(SCO_TALK_FORMAT));
+ json_object_object_add(paramsJ, "channels", json_object_new_int(1));
+ return paramsJ;
+}
+
+static json_object * halBlueAlsaListenParamsJ(uint32_t sampling) {
+ json_object * paramsJ = json_object_new_object();
+
+ json_object_object_add(paramsJ, "rate", json_object_new_int(sampling));
+ json_object_object_add(paramsJ, "format", json_object_new_string(A2DP_LISTEN_FORMAT));
return paramsJ;
}
@@ -447,6 +460,7 @@ static int halBlueAlsaAttachTransportStreams(bluealsa_transport_t * transport) {
json_object* playbackJ = NULL;
json_object* pcmplugParamsJ, *pcmplugParamsJ2 = NULL;
+ json_object* captureParamsJ;
json_object* streamsJ = NULL;
json_object* streamJ = NULL;
@@ -502,13 +516,15 @@ static int halBlueAlsaAttachTransportStreams(bluealsa_transport_t * transport) {
else
json_object_object_add(sourceJ, "channels", halBlueAlsaSCOTransportChannels(transportTypeS));
- json_object_object_add(requestJ, "captures", halBlueAlsaListenCapture(captureS, pcmplugParamsJ, sourceJ));
+ captureParamsJ = halBlueAlsaListenParamsJ(ba_transport->sampling);
+
+ json_object_object_add(requestJ, "captures", halBlueAlsaListenCapture(captureS, pcmplugParamsJ, captureParamsJ, sourceJ));
if (ba_transport->type & BA_PCM_TYPE_SCO) {
playbackJ = json_object_new_object();
// that is a shame that deep copy in not available in the current json-c version
pcmplugParamsJ2 = halBlueAlsaPcmPlugParams(watch->interface, addr, transportTypeS);
- json_object * paramsJ = halBlueAlsaScoTalkParamsJ();
+ json_object * paramsJ = halBlueAlsaScoTalkParamsJ(ba_transport->sampling);
json_object_object_add(playbackJ, "channels", halBlueAlsaSCOTransportChannels(transportTypeS));
json_object_object_add(requestJ, "playbacks", halBlueAlsaTalkPlayback(playbackS, pcmplugParamsJ2, paramsJ, playbackJ));
@@ -541,7 +557,7 @@ static int halBlueAlsaAttachTransportStreams(bluealsa_transport_t * transport) {
json_object_array_add(streamsJ, streamJ);
- /* In case of SCO, to have full-duplex, we instantiate a stream for talk */
+ /* In case of SCO, to have full-duplex, we instantiate a stream for 'talk' */
if (ba_transport->type & BA_PCM_TYPE_SCO ) {
streamJ = json_object_new_object();
@@ -630,7 +646,7 @@ static int halBlueAlsaFetchTransports(bluealsa_watch * watch) {
else
typeS = "unknown";
- AFB_API_DEBUG(plugin->api, "Transport %d: type %s (%x), dev %s", ix, typeS, ba_transport->type, addr);
+ AFB_API_DEBUG(plugin->api, "Transport %d: type %s (%x), dev %s, codec %d", ix, typeS, ba_transport->type, addr, ba_transport->codec);
if (BA_PCM_TYPE(ba_transport->type) == BA_PCM_TYPE_SCO &&
ba_transport->codec == 0) {
@@ -775,6 +791,11 @@ static int name_changed_cb(sd_bus_message *m, void *userdata, sd_bus_error * ret
const char * signature = sd_bus_message_get_signature(m, 1);
+ /* simply ignore silently that spurious message */
+ if (strcmp(signature,"s") == 0) {
+ goto done;
+ }
+
if (strcmp(signature,"sss") != 0) {
AFB_API_ERROR(plugin->api, "%s: wrong message signature '%s'", __func__, signature);
goto done;
@@ -867,7 +888,7 @@ static int halBlueAlsaRegisterAll(CtlPluginT* plugin) {
goto failed;
}
- AFB_API_ERROR(plugin->api, "Ask DBus for the list of services");
+ AFB_API_INFO(plugin->api, "Ask DBus for the list of services");
ret = sd_bus_call_method_async(bus,
&slot,