streams: inherits parameters from sourcesandbox/tbultel/bluealsa

The capture parameters of a stream must be the ones of
the capture source. The number of channel must typically
match the one of the source microphone, else the configuration
fails

Change-Id: Ie8d0d85a65cb4a94a8698d1015d730e3c2a8b6a5
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>

2 files changed, 28 insertions, 19 deletions

diff --git a/plugins/alsa/alsa-api-pcm.c b/plugins/alsa/alsa-api-pcm.c
index cc2817d..e1f1710 100644
--- a/plugins/alsa/alsa-api-pcm.c
+++ b/plugins/alsa/alsa-api-pcm.c
@@ -581,14 +581,6 @@ PUBLIC AlsaSndPcmT * ApiPcmAttachOne(SoftMixerT *mixer, const char *uid, snd_pcm
         goto fail_pcm_sndcard;
     }
 
-    // check sndcard accepts params
-    pcm->sndcard->params = ApiPcmSetParams(mixer, pcm->uid, paramsJ);
-    if (!pcm->sndcard->params) {
-        AFB_ApiError(mixer->api, "%s: hal=%s  Fail to set params sndcard uid=%s params=%s",
-        		__func__, uid, pcm->uid, json_object_get_string(paramsJ));
-        goto fail_pcm_sndcard_ctl;
-    }
-
     if (direction == SND_PCM_STREAM_PLAYBACK) {
         if (!sinkJ) {
             AFB_ApiError(mixer->api, "%s: hal=%s SND_PCM_STREAM_PLAYBACK require sinks args=%s",
@@ -626,7 +618,7 @@ PUBLIC AlsaSndPcmT * ApiPcmAttachOne(SoftMixerT *mixer, const char *uid, snd_pcm
             case json_type_object:
                 channel = ProcessOneChannel(mixer, pcm->uid, channelsJ);
                 if (channel == NULL) {
-                	goto fail_pcm_sndcard_ctl;
+                	goto fail_pcm_channels;
                 }
 
                 pcm->nbChannels++;
@@ -653,6 +645,16 @@ PUBLIC AlsaSndPcmT * ApiPcmAttachOne(SoftMixerT *mixer, const char *uid, snd_pcm
         }
     }
 
+    // check sndcard accepts params
+    pcm->sndcard->params = ApiPcmSetParams(mixer, pcm->uid, paramsJ);
+    if (!pcm->sndcard->params) {
+        AFB_ApiError(mixer->api, "%s: hal=%s  Fail to set params sndcard uid=%s params=%s",
+        		__func__, uid, pcm->uid, json_object_get_string(paramsJ));
+        goto fail_pcm_sndcard_ctl;
+    }
+
+    pcm->sndcard->params->channels = pcm->nbChannels;
+
     if (controlsJ) {
         json_object *volJ = NULL, *muteJ = NULL;
         error = wrap_json_unpack(controlsJ, "{s?o,s?o !}"
diff --git a/plugins/alsa/alsa-api-streams.c b/plugins/alsa/alsa-api-streams.c
index d9d9667..c4bbbc3 100644
--- a/plugins/alsa/alsa-api-streams.c
+++ b/plugins/alsa/alsa-api-streams.c
@@ -200,8 +200,8 @@ STATIC int CreateOneStream(SoftMixerT *mixer, const char * uid, AlsaStreamAudioT
     int volNumid = 0;
 
     AFB_ApiDebug(mixer->api,
-                "%s, stream %s %s, source %s, sink %s, mute %d",
-                __func__,uid, stream->uid, stream->source, stream->sink, stream->mute);
+                "NEW STREAM stream %s %s, source %s, sink %s, mute %d",
+                uid, stream->uid, stream->source, stream->sink, stream->mute);
 
     loopDev = ApiLoopFindSubdev(mixer, stream->uid, stream->source, &loop);
     if (loopDev) {
@@ -248,10 +248,20 @@ STATIC int CreateOneStream(SoftMixerT *mixer, const char * uid, AlsaStreamAudioT
     	goto OnErrorExit;
     }
 
+    if (captureCard->params) {
+    	if (stream->params) {
+
+    		AFB_ApiInfo(mixer->api,"%s: Stream %s inherits from capture %s parameters !",
+    			__func__, stream->uid, captureCard->cid.cardid);
+
+    		memcpy(stream->params, captureCard->params, sizeof(AlsaPcmHwInfoT));
+    	}
+    }
+
     capturePcm->closeAtDeletion = true;
     capturePcm->mute = stream->mute;
 
-    AFB_ApiDebug(mixer->api,"%s: PCM opened !", __func__);
+    AFB_ApiDebug(mixer->api,"%s: Capture PCM opened !", __func__);
 
     // Registry capturePcm PCM for active/pause event
     if (loopDev && loopDev->numid) {
@@ -310,11 +320,6 @@ STATIC int CreateOneStream(SoftMixerT *mixer, const char * uid, AlsaStreamAudioT
 
     }
 
-
-    // retrieve channel count from route and push it to stream
-
-    stream->params->channels = zone->ccount;
-
     // create mute control and Registry it as pause/resume ctl)
     if (asprintf(&runName, "pause-%s", stream->uid) == -1) {
     	SOFTMIXER_NOMEM(mixer->api);
@@ -371,14 +376,16 @@ STATIC int CreateOneStream(SoftMixerT *mixer, const char * uid, AlsaStreamAudioT
     if ((zone->params->rate   != stream->params->rate) ||
         (zone->params->format != stream->params->format)) {
         AFB_ApiNotice(mixer->api,
-                      "%s: Instanciate a RATE CONVERTER (stream [%d,%s(%d)], zone [%d,%s(%d)])",
+                      "%s: Instanciate a RATE CONVERTER (stream [%d,%s(%d),%d channels], zone [%d,%s(%d), %d channels])",
                       __func__,
                       stream->params->rate,
                       stream->params->formatS,
                       stream->params->format,
+					  stream->params->channels,
                       zone->params->rate,
                       zone->params->formatS,
-                      zone->params->format);
+                      zone->params->format,
+					  zone->params->channels);
 
         char *rateName;
         if (asprintf(&rateName, "rate-%s", stream->uid) == -1) {