added -buffer-size option,

along with relevant documentation, arg parsing, etc.
Removed obolete and unused encoding variable.


git-svn-id: https://recordmydesktop.svn.sourceforge.net/svnroot/recordmydesktop/trunk@237 f606c939-3180-4ac9-a4b8-4b8779d57d0a

1 files changed, 9 insertions, 4 deletions

diff --git a/recordmydesktop/src/opendev.c b/recordmydesktop/src/opendev.c
index 1461023..6e13933 100644
--- a/recordmydesktop/src/opendev.c
+++ b/recordmydesktop/src/opendev.c
@@ -30,13 +30,18 @@
 #include <recordmydesktop.h>
 
 
-snd_pcm_t *OpenDev(const char *pcm_dev,unsigned int *channels,unsigned int *frequency,snd_pcm_uframes_t *periodsize,unsigned int *periodtime,int *hard_pause){
+snd_pcm_t *OpenDev( const char *pcm_dev,
+                    unsigned int *channels,
+                    unsigned int *frequency,
+                    snd_pcm_uframes_t *buffsize,
+                    snd_pcm_uframes_t *periodsize,
+                    unsigned int *periodtime,
+                    int *hard_pause){
 
     snd_pcm_t *mhandle;
     snd_pcm_hw_params_t *hwparams;
     unsigned int periods=2;
     unsigned int exactrate = *frequency;
-    snd_pcm_uframes_t buffsize=1024;
     snd_pcm_hw_params_alloca(&hwparams);
 
 
@@ -79,7 +84,7 @@ snd_pcm_t *OpenDev(const char *pcm_dev,unsigned int *channels,unsigned int *freq
         return NULL;
     }
 
-    if (snd_pcm_hw_params_set_buffer_size_near(mhandle, hwparams,&buffsize)<0){
+    if (snd_pcm_hw_params_set_buffer_size_near(mhandle, hwparams,buffsize)<0){
         fprintf(stderr, "Couldn't set buffer size.\n");
         return NULL;
     }
@@ -93,11 +98,11 @@ snd_pcm_t *OpenDev(const char *pcm_dev,unsigned int *channels,unsigned int *freq
         }
     if(periodsize!=NULL)
         snd_pcm_hw_params_get_period_size(hwparams,periodsize,0);
-    snd_pcm_hw_params_get_buffer_size(hwparams,&buffsize);
 
     if(periodtime!=NULL)
         snd_pcm_hw_params_get_period_time(hwparams,periodtime,0);
     fprintf(stderr,"Recording on device %s is set to:\n%d channels at %dHz\n",pcm_dev,*channels,*frequency);
+    fprintf(stderr,"Buffer size set to %d frames.\n",(int)(*buffsize));
     snd_pcm_prepare(mhandle);
 
     return mhandle;