Improved stability, but there seem to be bugs with m3u files. Will

probably add an option to disable them by default.

src/plugins/gmedecoder/Constants.h

@@ -39,6 +39,9 @@
 #include <iostream>
 #include <vector>
 #include <algorithm>
+#include <dirent.h>
+#include <string.h>
+#include <unistd.h>
 
 #ifdef WIN32
 #define DLLEXPORT __declspec(dllexport)
@@ -84,3 +87,23 @@ static inline bool parseExternalId(const std::string& externalId, std::string& f
 static inline std::string createExternalId(const std::string& fn, int track) {
     return "gme://" + std::to_string(track) + "/" + fn;
 }
+
+static std::string getM3uFor(const std::string& fn) {
+    size_t lastDot = fn.find_last_of(".");
+    if (lastDot != std::string::npos) {
+        std::string m3u = fn.substr(0, lastDot) + ".m3u";
+        if (access(m3u.c_str(), R_OK) != -1) {
+            return m3u;
+        }
+    }
+    return "";
+}
+
+static bool exists(const std::string& externalId) {
+    std::string fn;
+    int trackNum;
+    if (!parseExternalId(externalId, fn, trackNum)) {
+        return false;
+    }
+    return access(fn.c_str(), R_OK) != -1;
+}

src/plugins/gmedecoder/GmeDataStream.cpp

@@ -41,10 +41,9 @@ using namespace musik::core::sdk;
 extern IEnvironment* environment;
 
 bool GmeDataStream::Open(const char *uri, unsigned int options) {
-    std::string fn;
-    if (parseExternalId(uri, fn, this->trackNumber)) {
+    if (parseExternalId(uri, this->filename, this->trackNumber)) {
         if (environment) {
-            this->stream = environment->GetDataStream(fn.c_str());
+            this->stream = environment->GetDataStream(this->filename.c_str());
             if (this->stream) {
                 return true;
             }

src/plugins/gmedecoder/GmeDataStream.h

@@ -56,8 +56,10 @@ class GmeDataStream: public musik::core::sdk::IDataStream {
         virtual bool CanPrefetch() override;
 
         int GetTrackNumber() { return this->trackNumber; }
+        std::string GetFilename() { return this->filename; }
 
     private:
         int trackNumber { 0 };
+        std::string filename;
         musik::core::sdk::IDataStream* stream { nullptr };
 };

src/plugins/gmedecoder/GmeDecoder.cpp

@@ -39,8 +39,9 @@
 static const int BUFFER_SAMPLE_COUNT = 2048;
 static const int CHANNELS = 2;
 static const int SAMPLE_RATE = 44100;
-static const int SAMPLES_PER_MS = SAMPLE_RATE / 1000;
-static const int FADE_LENGTH_MS = 2000;
+static const int SAMPLES_PER_MS = (SAMPLE_RATE * CHANNELS) / 1000;
+static const int FADE_LENGTH_MS = 2500;
+static const int MAXIMUM_DURATION_MS = 150000; /* 2.5 mins */
 static const float F_SHRT_MAX = (float) SHRT_MAX;
 
 GmeDecoder::GmeDecoder() {
@@ -64,6 +65,11 @@ bool GmeDecoder::Open(musik::core::sdk::IDataStream *stream) {
         if (!gme_open_data(data, length, &this->gme, SAMPLE_RATE)) {
             int trackNum = this->stream->GetTrackNumber();
 
+            std::string m3u = getM3uFor(this->stream->GetFilename());
+            if (m3u.size()) {
+                gme_load_m3u(this->gme, m3u.c_str());
+            }
+
             bool error =
                 !!gme_track_info(this->gme, &this->info, trackNum) ||
                 !!gme_start_track(this->gme, trackNum);
@@ -75,7 +81,7 @@ bool GmeDecoder::Open(musik::core::sdk::IDataStream *stream) {
                 this->info = nullptr;
             }
             else {
-                gme_set_fade(this->gme, this->info->play_length - FADE_LENGTH_MS, FADE_LENGTH_MS);
+                gme_set_fade(this->gme, MAXIMUM_DURATION_MS - FADE_LENGTH_MS, FADE_LENGTH_MS);
             }
         }
     }

src/plugins/gmedecoder/GmeIndexerSource.cpp

@@ -39,50 +39,27 @@
 #include <set>
 #include <map>
 #include <gme.h>
-#include <unistd.h>
-#include <string.h>
-#include <dirent.h>
 
 using namespace musik::core::sdk;
 
-static std::string getM3uFor(const std::string& fn) {
-    size_t lastDot = fn.find_last_of(".");
-    if (lastDot != std::string::npos) {
-        std::string m3u = fn.substr(0, lastDot) + ".m3u";
-        if (access(m3u.c_str(), R_OK) != -1) {
-            return m3u;
-        }
-    }
-    return "";
-}
-
-static bool exists(const std::string& externalId) {
-    std::string fn;
-    int trackNum;
-    if (!parseExternalId(externalId, fn, trackNum)) {
-        return false;
-    }
-    return access(fn.c_str(), R_OK) != -1;
-}
-
 static void updateMetadata(
     const std::string& fn,
     IIndexerSource* source,
     IIndexerWriter* indexer)
 {
     gme_t* data = nullptr;
-    gme_err_t err = gme_open_file(fn.c_str(), &data, 44100);
+    gme_err_t err = gme_open_file(fn.c_str(), &data, gme_info_only);
     if (err) {
         std::cerr << "error opening file: " << err << "\n";
     }
     else {
-        // std::string m3u = getM3uFor(fn);
-        // if (m3u.size()) {
-        //     err = gme_load_m3u(data, m3u.c_str());
-        //     if (err) {
-        //         std::cerr << "m3u found, but load failed: " << err << "\n";
-        //     }
-        // }
+        std::string m3u = getM3uFor(fn);
+        if (m3u.size()) {
+            err = gme_load_m3u(data, m3u.c_str());
+            if (err) {
+                std::cerr << "m3u found, but load failed: " << err << "\n";
+            }
+        }
 
         for (int i = 0; i < gme_track_count(data); i++) {
             gme_info_t* info = nullptr;

src/plugins/gmedecoder/GmeIndexerSource.h

@@ -38,6 +38,7 @@
 #include <core/sdk/IIndexerSource.h>
 #include <functional>
 #include <set>
+#include <map>
 
 class GmeIndexerSource: public musik::core::sdk::IIndexerSource {
     public: