Warn about rejected buffer/period size/time when it was specified by the user

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4864 c046a42c-6fe2-441c-8c8c-71466251a162

audio/alsaaudio.c

@@ -67,6 +67,7 @@ struct alsa_params_req {
     snd_pcm_format_t fmt;
     int nchannels;
     int size_in_usec;
+    int override_mask;
     unsigned int buffer_size;
     unsigned int period_size;
 };
@@ -364,7 +365,7 @@ static int alsa_open (int in, struct alsa_params_req *req,
             goto err;
         }
 
-        if (obt - req->buffer_size)
+        if ((req->override_mask & 2) && (obt - req->buffer_size))
             dolog ("Requested buffer %s %u was rejected, using %lu\n",
                    size_in_usec ? "time" : "size", req->buffer_size, obt);
     }
@@ -403,7 +404,7 @@ static int alsa_open (int in, struct alsa_params_req *req,
             goto err;
         }
 
-        if (obt - req->period_size)
+        if ((req->override_mask & 1) && (obt - req->period_size))
             dolog ("Requested period %s %u was rejected, using %lu\n",
                    size_in_usec ? "time" : "size", req->period_size, obt);
     }
@@ -624,6 +625,8 @@ static int alsa_init_out (HWVoiceOut *hw, audsettings_t *as)
     req.period_size = conf.period_size_out;
     req.buffer_size = conf.buffer_size_out;
     req.size_in_usec = conf.size_in_usec_out;
+    req.override_mask = !!conf.period_size_out_overridden
+        | (!!conf.buffer_size_out_overridden << 1);
 
     if (alsa_open (0, &req, &obt, &handle)) {
         return -1;
@@ -702,6 +705,8 @@ static int alsa_init_in (HWVoiceIn *hw, audsettings_t *as)
     req.period_size = conf.period_size_in;
     req.buffer_size = conf.buffer_size_in;
     req.size_in_usec = conf.size_in_usec_in;
+    req.override_mask = !!conf.period_size_in_overridden
+        | (!!conf.buffer_size_in_overridden << 1);
 
     if (alsa_open (1, &req, &obt, &handle)) {
         return -1;