This commit was generated by cvs2svn to compensate for changes in r3,

which included commits to RCS files with non-trunk default branches.


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

1 files changed, 98 insertions, 0 deletions

diff --git a/recordmydesktop/src/opendev.c b/recordmydesktop/src/opendev.c
new file mode 100644
index 0000000..d8a4179
--- /dev/null
+++ b/recordmydesktop/src/opendev.c
@@ -0,0 +1,98 @@
+/*********************************************************************************
+*                             recordMyDesktop                                    *
+**********************************************************************************
+*                                                                                *
+*             Copyright (C) 2006  John Varouhakis                                *
+*                                                                                *
+*                                                                                *
+*    This program is free software; you can redistribute it and/or modify        *
+*    it under the terms of the GNU General Public License as published by        *
+*    the Free Software Foundation; either version 2 of the License, or           *
+*    (at your option) any later version.                                         *
+*                                                                                *
+*    This program is distributed in the hope that it will be useful,             *
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of              *
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               *
+*    GNU General Public License for more details.                                *
+*                                                                                *
+*    You should have received a copy of the GNU General Public License           *
+*    along with this program; if not, write to the Free Software                 *
+*    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA   *
+*                                                                                *
+*                                                                                *
+*                                                                                *
+*    For further information contact me at biocrasher@gmail.com                  *
+**********************************************************************************/
+
+
+
+
+#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 *mhandle;
+    snd_pcm_hw_params_t *hwparams;
+    unsigned int periods=2;
+    unsigned int exactrate = *frequency;
+
+    snd_pcm_hw_params_alloca(&hwparams);
+    snd_pcm_uframes_t buffsize=4096;
+
+    if (snd_pcm_open(&mhandle, pcm_dev, SND_PCM_STREAM_CAPTURE, 0)<0){
+        fprintf(stderr, "Couldn't open PCM device %s\n", pcm_dev);
+        return NULL;
+    }
+    if (snd_pcm_hw_params_any(mhandle, hwparams)<0){
+        fprintf(stderr, "Couldn't configure PCM device.\n");
+        return NULL;
+    }
+    if (snd_pcm_hw_params_set_access(mhandle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED)<0)    {
+        fprintf(stderr, "Couldn't set access.\n");
+        return NULL;
+    }
+    if (snd_pcm_hw_params_set_format(mhandle, hwparams, SND_PCM_FORMAT_S16_LE)<0){
+        fprintf(stderr, "Couldn't set format.\n");
+        return NULL;
+    }
+    if (snd_pcm_hw_params_set_rate_near(mhandle, hwparams, &exactrate, 0)<0){
+        fprintf(stderr, "Couldn't set frequency.\n");
+        return NULL;
+    }
+    if (*frequency != exactrate){
+        fprintf(stderr, "Playback frequency %dHz is not available...\nUsing %dHz instead.\n",*frequency,exactrate);
+        *frequency=exactrate;
+    }
+    if (snd_pcm_hw_params_set_channels_near(mhandle, hwparams, &channels)<0){
+        fprintf(stderr, "Couldn't set channels number.\n");
+        return NULL;
+    }
+    if (snd_pcm_hw_params_set_periods_near(mhandle, hwparams, &periods,0)<0)    {
+        fprintf(stderr, "Couldn't set periods.\n");
+        return NULL;
+    }
+    buffsize=(((exactrate*channels)))>>channels;
+    if (snd_pcm_hw_params_set_buffer_size_near(mhandle, hwparams,&buffsize)<0){
+        fprintf(stderr, "Couldn't set buffer size.\n");
+        return NULL;
+    }
+    if (snd_pcm_hw_params(mhandle, hwparams)<0){
+        fprintf(stderr, "Couldn't set hardware parameters.\n");
+        return NULL;
+    }
+    if(hard_pause!=NULL)
+        if(!snd_pcm_hw_params_can_pause(hwparams)){
+//             fprintf(stderr, "Current sound device doesn't seem to support pausing!\nI will attempt to close/reopen device in case you opt to pause during recording.\n");
+            *hard_pause=1;
+        }
+    if(periodsize!=NULL)
+        snd_pcm_hw_params_get_period_size(hwparams,periodsize,0);
+    if(periodtime!=NULL)
+        snd_pcm_hw_params_get_period_time(hwparams,periodtime,0);
+    snd_pcm_prepare(mhandle);
+
+    return mhandle;
+}
+
+