Disable high quality video on OLPC XO-1

http://dev.laptop.org/ticket/10242

2 files changed, 42 insertions, 1 deletions

diff --git a/hw.py b/hw.py
new file mode 100644
index 0000000..d678e37
--- /dev/null
+++ b/hw.py
@@ -0,0 +1,37 @@
+# Copyright (C) 2010, One Laptop per Child
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+import os
+
+def _get_dmi(node):
+    path = os.path.join('/sys/class/dmi/id', node)
+    try:
+        return open(path).readline().strip()
+    except:
+        return None
+
+def get_xo_version():
+    if _get_dmi('product_name') != 'XO':
+        return 0
+    version = _get_dmi('product_version')
+    if version == '1':
+        return 1
+    if version == '1.5':
+        return 1.5
+    else:
+        return 0
+
diff --git a/ui.py b/ui.py
index 51bd3b9..21e27be 100644
--- a/ui.py
+++ b/ui.py
@@ -63,6 +63,7 @@ import record
 import aplay
 from tray import HTray
 from toolbarcombobox import ToolComboBox
+import hw
 
 class UI:
 
@@ -2341,7 +2342,10 @@ class VideoToolbar(gtk.Toolbar):
         self.quality = ToolComboBox(combo=combo,
                 label_text=Constants.istrQuality+':')
         self.quality.combo.append_text(Constants.istrLowQuality)
-        self.quality.combo.append_text(Constants.istrHighQuality)
+        if hw.get_xo_version() != 1:
+            # Disable High quality on XO-1. The system simply isn't beefy
+            # enough for recording to work well.
+            self.quality.combo.append_text(Constants.istrHighQuality)
         self.quality.combo.set_active(0)
         self.insert(self.quality, -1 )