Add an option to enable direct channels for alffplay

1 files changed, 18 insertions, 0 deletions

diff --git a/examples/alffplay.cpp b/examples/alffplay.cpp
index b2033b97..56379953 100644
--- a/examples/alffplay.cpp
+++ b/examples/alffplay.cpp
@@ -40,6 +40,7 @@ namespace
 
 static const std::string AppName("alffplay");
 
+static bool do_direct_out = false;
 static bool has_latency_check = false;
 static LPALGETSOURCEDVSOFT alGetSourcedvSOFT;
 
@@ -730,6 +731,17 @@ int AudioState::handler()
     alGenBuffers(AUDIO_BUFFER_QUEUE_SIZE, mBuffers);
     alGenSources(1, &mSource);
 
+    if(do_direct_out)
+    {
+        if(!alIsExtensionPresent("AL_SOFT_direct_channels"))
+            std::cerr<< "AL_SOFT_direct_channels not supported for direct output" <<std::endl;
+        else
+        {
+            alSourcei(mSource, AL_DIRECT_CHANNELS_SOFT, AL_TRUE);
+            std::cout<< "Direct out enabled" <<std::endl;
+        }
+    }
+
     while(alGetError() == AL_NO_ERROR && !mMovie->mQuit.load())
     {
         /* First remove any processed buffers. */
@@ -1437,6 +1449,12 @@ int main(int argc, char *argv[])
         return 1;
     }
 
+    if(fileidx < argc && strcmp(argv[fileidx], "-direct") == 0)
+    {
+        ++fileidx;
+        do_direct_out = true;
+    }
+
     while(fileidx < argc && !movState)
     {
         movState = std::unique_ptr<MovieState>(new MovieState(argv[fileidx++]));