Add the possibility to specify protection profile

6 files changed, 50 insertions, 14 deletions

diff --git a/doc/example.mux b/doc/example.mux
index f5a2476..65127d9 100644
--- a/doc/example.mux
+++ b/doc/example.mux
@@ -104,7 +104,20 @@ subchannels {
         nonblock false
         bitrate 128
         id 10
-        protection 5
+
+        ; type audio subchannels automatically use
+        ; UEP, unless the bitrate is 8, 16, 24, 40 or 144kbit/s
+        ; (EN 300 401 Clause 6.2.1)
+        ; this can be overridden with the option protection-profile
+        protection-profile EEP_A
+        ; supported options: UEP (use only for type audio!)
+        ;                    EEP_A (for all bitrates)
+        ;                    EEP_B (bitrates multiple of 32kbit/s)
+
+        ; Set the protection level, possible values depend
+        ; on the protection profile:
+        ; UEP profile: 1 to 5; EEP profiles: 1 to 4
+        protection 4
     }
     sub-lu {
         type audio
diff --git a/src/DabMux.cpp b/src/DabMux.cpp
index 6f826c0..655985f 100644
--- a/src/DabMux.cpp
+++ b/src/DabMux.cpp
@@ -308,7 +308,6 @@ int main(int argc, char *argv[])
 
     unsigned long currentFrame;
     int returnCode = 0;
-    int result;
     int cur;
     unsigned char etiFrame[6144];
     unsigned short index = 0;
@@ -567,14 +566,14 @@ int main(int argc, char *argv[])
             }
 
             // TODO Check errors
-            result = (*subchannel)->input->setBitrate( (*subchannel)->bitrate);
-            if (result <= 0) {
+            int subch_bitrate = (*subchannel)->input->setBitrate( (*subchannel)->bitrate);
+            if (subch_bitrate <= 0) {
                 etiLog.log(error, "can't set bitrate for source %s\n",
                         (*subchannel)->inputName);
                 returnCode = -1;
                 throw MuxInitException();
             }
-            (*subchannel)->bitrate = result;
+            (*subchannel)->bitrate = subch_bitrate;
 
             /* Use EEP unless we find a UEP configuration
              * UEP is only used for MPEG audio, but some bitrates don't
@@ -593,10 +592,24 @@ int main(int argc, char *argv[])
                     }
                 }
             }
+
+            /* EEP B can only be used for subchannels with bitrates
+             * multiple of 32kbit/s
+             */
+            if (    protection->form == EEP &&
+                    protection->eep.profile == EEP_B &&
+                    subch_bitrate % 32 != 0 ) {
+                etiLog.level(error) <<
+                    "Cannot use EEP_B protection for subchannel " <<
+                    (*subchannel)->inputName <<
+                    ": bitrate not multiple of 32kbit/s";
+                returnCode = -1;
+                throw MuxInitException();
+            }
         }
 
         if (ensemble->subchannels.size() == 0) {
-            etiLog.log(error, "can't multiplexed no subchannel!\n");
+            etiLog.log(error, "can't multiplex no subchannel!\n");
             returnCode = -1;
             throw MuxInitException();
         }
@@ -1920,7 +1933,7 @@ int main(int argc, char *argv[])
                 TagESTn* tag = edi_subchannelToTag[*subchannel];
 
                 int sizeSubchannel = getSizeByte(*subchannel);
-                result = (*subchannel)->input->readFrame(
+                int result = (*subchannel)->input->readFrame(
                         &etiFrame[index], sizeSubchannel);
 
                 if (result < 0) {
diff --git a/src/MuxElements.h b/src/MuxElements.h
index f1097c0..6607c20 100644
--- a/src/MuxElements.h
+++ b/src/MuxElements.h
@@ -125,7 +125,6 @@ class dabEnsemble : public RemoteControllable {
 
 
 struct dabProtectionUEP {
-    unsigned char tableSwitch;
     unsigned char tableIndex;
 };
 
diff --git a/src/ParserCmdline.cpp b/src/ParserCmdline.cpp
index 9768d20..6dcee55 100644
--- a/src/ParserCmdline.cpp
+++ b/src/ParserCmdline.cpp
@@ -402,7 +402,6 @@ bool parse_cmdline(char **argv,
             if (c == 'A') {
                 protection->form = UEP;
                 protection->level = 2;
-                protection->uep.tableSwitch = 0;
                 protection->uep.tableIndex = 0;
             } else {
                 protection->form = EEP;
diff --git a/src/ParserConfigfile.cpp b/src/ParserConfigfile.cpp
index 943e500..f4c1075 100644
--- a/src/ParserConfigfile.cpp
+++ b/src/ParserConfigfile.cpp
@@ -846,7 +846,6 @@ void setup_subchannel_from_ptree(dabSubchannel* subchan,
     if (type == "audio") {
         protection->form = UEP;
         protection->level = 2;
-        protection->uep.tableSwitch = 0;
         protection->uep.tableIndex = 0;
     } else {
         protection->level = 2;
@@ -934,7 +933,22 @@ void setup_subchannel_from_ptree(dabSubchannel* subchan,
         }
     }
 
-    /* Get protection */
+    /* Get optional protection profile */
+    string profile = pt.get("protection-profile", "");
+
+    if (profile == "EEP_A") {
+        protection->form = EEP;
+        protection->eep.profile = EEP_A;
+    }
+    else if (profile == "EEP_B") {
+        protection->form = EEP;
+        protection->eep.profile = EEP_B;
+    }
+    else if (profile == "UEP") {
+        protection->form = UEP;
+    }
+
+    /* Get protection level */
     try {
         int level = pt.get<int>("protection");
 
@@ -947,7 +961,7 @@ void setup_subchannel_from_ptree(dabSubchannel* subchan,
                 throw runtime_error(ss.str());
             }
         }
-        else {
+        else if (protection->form == EEP) {
             if ((level < 1) || (level > 4)) {
                 stringstream ss;
                 ss << "Subchannel with uid " << subchanuid <<
diff --git a/src/utils.cpp b/src/utils.cpp
index 654759d..85f42d2 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -418,8 +418,6 @@ void printSubchannels(vector<dabSubchannel*>& subchannels)
                 (*subchannel)->bitrate);
         if (protection->form == UEP) {
             etiLog.log(info, " protection: UEP %i", protection->level + 1);
-            etiLog.log(info, "  switch:    %i",
-                    protection->uep.tableSwitch);
             etiLog.log(info, "  index:     %i",
                     protection->uep.tableIndex);
         }