Add -L option to give arbitrary options to VLC

3 files changed, 33 insertions, 9 deletions

diff --git a/src/VLCInput.cpp b/src/VLCInput.cpp
index f527f20..468ef70 100644
--- a/src/VLCInput.cpp
+++ b/src/VLCInput.cpp
@@ -159,8 +159,8 @@ int VLCInput::prepare()
             prepareRender_address,
             (long long int)(intptr_t)this);
 
-
-    const char* vlc_args[6];
+#define VLC_ARGS_LEN 32
+    const char* vlc_args[VLC_ARGS_LEN];
     size_t arg_ix = 0;
     std::stringstream arg_verbose;
     arg_verbose << "--verbose=" << m_verbosity;
@@ -185,6 +185,16 @@ int VLCInput::prepare()
     vlc_args[arg_ix++] = "--sout";
     vlc_args[arg_ix++] = smem_options; // Stream to memory
 
+    for (const auto& opt : m_additional_opts) {
+        if (arg_ix < VLC_ARGS_LEN) {
+            vlc_args[arg_ix++] = opt.c_str();
+        }
+        else {
+            fprintf(stderr, "Too many VLC options given");
+            return 1;
+        }
+    }
+
     if (m_verbosity) {
         fprintf(stderr, "Initialising VLC with options:\n");
         for (size_t i = 0; i < arg_ix; i++) {
diff --git a/src/VLCInput.h b/src/VLCInput.h
index 27d6237..d583008 100644
--- a/src/VLCInput.h
+++ b/src/VLCInput.h
@@ -49,12 +49,14 @@ class VLCInput
                  unsigned channels,
                  unsigned verbosity,
                  std::string& gain,
-                 std::string& cache) :
+                 std::string& cache,
+                 std::vector<std::string>& additional_opts) :
             m_uri(uri),
             m_verbosity(verbosity),
             m_channels(channels),
             m_rate(rate),
             m_cache(cache),
+            m_additional_opts(additional_opts),
             m_gain(gain),
             m_vlc(nullptr),
             m_mp(nullptr) { }
@@ -106,6 +108,9 @@ class VLCInput
         // Whether to enable network caching in VLC or not
         std::string m_cache;
 
+        // Given as-is to libvlc
+        std::vector<std::string> m_additional_opts;
+
         // value for the VLC compressor filter
         std::string m_gain;
 
@@ -130,8 +135,9 @@ class VLCInputDirect : public VLCInput
                        unsigned channels,
                        unsigned verbosity,
                        std::string& gain,
-                       std::string& cache) :
-            VLCInput(uri, rate, channels, verbosity, gain, cache) {}
+                       std::string& cache,
+                       std::vector<std::string>& additional_opts) :
+            VLCInput(uri, rate, channels, verbosity, gain, cache, additional_opts) {}
 
         /* Read exactly length bytes into buf.
          * Blocks if not enough data is available,
@@ -153,8 +159,9 @@ class VLCInputThreaded : public VLCInput
                          unsigned verbosity,
                          std::string& gain,
                          std::string& cache,
+                         std::vector<std::string>& additional_opts,
                          SampleQueue<uint8_t>& queue) :
-            VLCInput(uri, rate, channels, verbosity, gain, cache),
+            VLCInput(uri, rate, channels, verbosity, gain, cache, additional_opts),
             m_fault(false),
             m_running(false),
             m_queue(queue) {}
diff --git a/src/dabplus-enc.cpp b/src/dabplus-enc.cpp
index d0130fd..0f34d65 100644
--- a/src/dabplus-enc.cpp
+++ b/src/dabplus-enc.cpp
@@ -103,6 +103,8 @@ void usage(const char* name) {
     "                                          much too loud.\n"
     "     -V                                   Increase the VLC verbosity by one (can be given \n"
     "                                          multiple times)\n"
+    "     -L OPTION                            Give an additional options to VLC (can be given\n"
+    "                                          multiple times)\n"
     "     -w, --write-icy-text=filename        Write the ICY Text into the file, so that mot-encoder can read it.\n"
 #else
     "     The VLC input was disabled at compile-time\n"
@@ -255,6 +257,7 @@ int main(int argc, char *argv[])
     std::string vlc_icytext_file = "";
     std::string vlc_gain = "";
     std::string vlc_cache = "";
+    std::vector<std::string> vlc_additional_opts;
     unsigned verbosity = 0;
 
     // For the file output
@@ -312,6 +315,7 @@ int main(int argc, char *argv[])
         {"vlc-cache",      required_argument,  0, 'C'},
         {"vlc-gain",       required_argument,  0, 'g'},
         {"vlc-uri",        required_argument,  0, 'v'},
+        {"vlc-opt",        required_argument,  0, 'L'},
         {"write-icy-text", required_argument,  0, 'w'},
         {"aaclc",          no_argument,        0,  0 },
         {"afterburner",    no_argument,        0, 'a'},
@@ -346,7 +350,7 @@ int main(int argc, char *argv[])
 
     int index;
     while(ch != -1) {
-        ch = getopt_long(argc, argv, "aAhDlVb:c:f:i:j:k:o:r:d:p:P:s:v:w:g:C:", longopts, &index);
+        ch = getopt_long(argc, argv, "aAhDlVb:c:f:i:j:k:L:o:r:d:p:P:s:v:w:g:C:", longopts, &index);
         switch (ch) {
         case 0: // AAC-LC
             aot = AOT_DABPLUS_AAC_LC;
@@ -437,6 +441,9 @@ int main(int argc, char *argv[])
         case 'C':
             vlc_cache = optarg;
             break;
+        case 'L':
+            vlc_additional_opts.push_back(optarg);
+            break;
 #else
         case 'v':
         case 'w':
@@ -608,8 +615,8 @@ int main(int argc, char *argv[])
     JackInput         jack_in(jack_name, channels, sample_rate, queue);
 #endif
 #if HAVE_VLC
-    VLCInputDirect    vlc_in_direct(vlc_uri, sample_rate, channels, verbosity, vlc_gain, vlc_cache);
-    VLCInputThreaded  vlc_in_threaded(vlc_uri, sample_rate, channels, verbosity, vlc_gain, vlc_cache, queue);
+    VLCInputDirect    vlc_in_direct(vlc_uri, sample_rate, channels, verbosity, vlc_gain, vlc_cache, vlc_additional_opts);
+    VLCInputThreaded  vlc_in_threaded(vlc_uri, sample_rate, channels, verbosity, vlc_gain, vlc_cache, vlc_additional_opts, queue);
 #endif
 
     if (infile) {