Fist AlsaLoop model playing music (work in progress)

1 files changed, 66 insertions, 22 deletions

diff --git a/plugins/alsa/alsa-softmixer.c b/plugins/alsa/alsa-softmixer.c
index bf195fb..253a00b 100644
--- a/plugins/alsa/alsa-softmixer.c
+++ b/plugins/alsa/alsa-softmixer.c
@@ -14,42 +14,86 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
-*/
+ */
 
 #define _GNU_SOURCE  // needed for vasprintf
 
 #include "alsa-softmixer.h"
 
-CTLP_CAPI_REGISTER("alsa-mixer");
+// Force Lua2cWrapper inclusion within already existing plugin
+CTLP_LUA_REGISTER("alsa-mixer")
 
 // Call at initialisation time
 CTLP_ONLOAD(plugin, callbacks) {
-	AFB_ApiDebug (plugin->api, "SoftMixer plugin: uid='%s' 'info='%s'", plugin->uid, plugin->info);
-        
-        // fake action call during init for debug
-        CtlSourceT source;
-        source.api = plugin->api;
-        AlsaCreateDmix (&source);
-        
-	return 0;
+	AFB_ApiDebug (plugin->api, "SoftMixer plugin: uid='%s' 'info='%s'", plugin->uid, plugin->info);        
+        return NULL;
 }
 
-CTLP_CAPI (zone_ctl, source, argsJ, eventJ) {
-	json_object* subscribeArgsJ = NULL;
+CTLP_LUA2C(AlsaRouter, source, argsJ, responseJ) {
+    json_object *devInJ, *devOutJ, *paramsJ=NULL;
+    AlsaDevByPathT devIn, devOut;
+    int err;
+    
+    // init default values
+    memset(&devIn,0,sizeof(AlsaDevByPathT));    
+    memset(&devOut,0,sizeof(AlsaDevByPathT));    
+    int rate=ALSA_PCM_DEFAULT_RATE;
+    int channels=ALSA_PCM_DEFAULT_CHANNELS;
+    snd_pcm_format_t format=ALSA_PCM_DEFAULT_FORMAT;
+    snd_pcm_access_t access=ALSA_PCM_DEFAULT_ACCESS;
+    
+        
+    err= wrap_json_unpack(argsJ, "{s:o,s:o,s?o}", "devin", &devInJ, "devout", &devOutJ, "params", &paramsJ);
+    if (err) {
+        AFB_ApiNotice(source->api, "--lua2c-- AlsaRouter ARGS missing devIn|devOut args=%s", json_object_get_string(argsJ));
+        goto OnErrorExit;
+    }
 
-	int err = 0;
-	wrap_json_pack(&subscribeArgsJ, "{ss}", "value", "location");
-	AFB_ApiDebug(source->api, "Calling zone_ctl with %s", json_object_to_json_string_ext(subscribeArgsJ, JSON_C_TO_STRING_PRETTY));
+    AFB_ApiNotice(source->api, "--lua2c-- AlsaRouter **** PARAMS missing 'format|access|rate|channels' params=%s", json_object_get_string(paramsJ));
 
-	return err;
+    err= wrap_json_unpack(devInJ, "{s?s,s?s,s?i,s?i}", "path", &devIn.devpath, "id",&devIn.devid,"numid",&devIn.numid,"dev", &devIn.device, "sub", &devIn.subdev);
+    if (err || (!devIn.devpath && !devIn.devid)) {
+        AFB_ApiNotice(source->api, "--lua2c-- AlsaRouter DEV-IN missing 'path|id|dev|sub|numid' devin=%s", json_object_get_string(devInJ));
+        goto OnErrorExit;
+    }
+    
+    err= wrap_json_unpack(devOutJ, "{s?s,s?s,s?i, s?i,s?i}", "path", &devOut.devpath, "id", &devOut.device, "sub", &devOut.subdev);
+    if (err || (!devOut.devpath && !devOut.devid)) {
+        AFB_ApiNotice(source->api, "--lua2c-- AlsaRouter DEV-OUT missing 'path|id|dev|sub' devout=%s", json_object_get_string(devOutJ));
+        goto OnErrorExit;
+    }
+    
+    if (paramsJ) if ((err= wrap_json_unpack(paramsJ, "{s?i, s?i, s?i, s?i}", "format", &format, "access", &access, "rate", &rate, "channels",&channels)) != 0) {
+        AFB_ApiNotice(source->api, "--lua2c-- AlsaRouter PARAMS missing 'format|access|rate|channels' params=%s", json_object_get_string(paramsJ));
+        goto OnErrorExit;
+    }
+      
+    AFB_ApiNotice(source->api, "--lua2c-- AlsaRouter devIn=%s devOut=%s rate=%d channel=%d", devIn.devpath, devOut.devpath, rate, channels);
+       
+    // open PCM and start frame copy from binder Mainloop
+    snd_pcm_t* pcmIn = AlsaByPathOpenPcm(source, &devIn, SND_PCM_STREAM_CAPTURE);
+    snd_pcm_t* pcmOut = AlsaByPathOpenPcm(source, &devOut, SND_PCM_STREAM_PLAYBACK);
+    err = AlsaPcmCopy(source, pcmIn, pcmOut, format, access, (unsigned int)rate, (unsigned int)channels);
+    if(err) goto OnErrorExit;
+    
+    // Registration to event should be done after pcm_start
+    if (devIn.numid) {
+        err= AlsaCtlRegister(source, pcmIn, devIn.numid);
+        if(err)  goto OnErrorExit;         
+    }    
+    
+    return 0;
+    
+OnErrorExit:
+    return -1;    
 }
 
-CTLP_CAPI (stream_ctl, source, argsJ, eventJ) {
-	json_object* subscribeArgsJ = NULL;
+CTLP_LUA2C(AlsaDmix, source, argsJ, responseJ) {
+    json_object* subscribeArgsJ = NULL;
 
-	int err = 0;
-	wrap_json_pack(&subscribeArgsJ, "{ss}", "value", "location");
-	AFB_ApiDebug(source->api, "Calling stream_ctl with %s", json_object_to_json_string_ext(subscribeArgsJ, JSON_C_TO_STRING_PRETTY));
+    int err = 0;
+    wrap_json_pack(&subscribeArgsJ, "{ss}", "value", "location");
+    AFB_ApiNotice(source->api, "lua2c router with %s", json_object_to_json_string_ext(subscribeArgsJ, JSON_C_TO_STRING_PRETTY));
 
-	return err;
+    return err;
 }