From a64c9e4b8f7a02f4de2686238bb74dc22e122753 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Fri, 20 Jun 2008 18:17:27 +0000
Subject: [PATCH] * Some patches to make gorecord more useful.

svn path=/nixpkgs/trunk/; revision=12172
---
 pkgs/os-specific/linux/wis-go7007/alsa.patch  | 20 +++++++++++++++++++
 pkgs/os-specific/linux/wis-go7007/default.nix | 18 +++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 pkgs/os-specific/linux/wis-go7007/alsa.patch

diff --git a/pkgs/os-specific/linux/wis-go7007/alsa.patch b/pkgs/os-specific/linux/wis-go7007/alsa.patch
new file mode 100644
index 00000000000..64fd9310e77
--- /dev/null
+++ b/pkgs/os-specific/linux/wis-go7007/alsa.patch
@@ -0,0 +1,20 @@
+diff -rc wis-go7007-linux-0.9.8-orig/apps/gorecord.c wis-go7007-linux-0.9.8/apps/gorecord.c
+*** wis-go7007-linux-0.9.8-orig/apps/gorecord.c	2006-04-02 00:35:17.000000000 +0200
+--- wis-go7007-linux-0.9.8/apps/gorecord.c	2008-06-20 19:47:48.000000000 +0200
+***************
+*** 196,202 ****
+  		sprintf(sympath, "/sys/class/sound/pcmC%dD0c/device", i);
+  		if (realpath(sympath, canonpath) == NULL)
+  			continue;
+! 		if (!strcmp(gopath, canonpath))
+  			break;
+  	}
+  	if (i == 20) {
+--- 196,202 ----
+  		sprintf(sympath, "/sys/class/sound/pcmC%dD0c/device", i);
+  		if (realpath(sympath, canonpath) == NULL)
+  			continue;
+! 		if (!strncmp(gopath, canonpath, strlen(gopath)))
+  			break;
+  	}
+  	if (i == 20) {
diff --git a/pkgs/os-specific/linux/wis-go7007/default.nix b/pkgs/os-specific/linux/wis-go7007/default.nix
index 150692601af..84397a59378 100644
--- a/pkgs/os-specific/linux/wis-go7007/default.nix
+++ b/pkgs/os-specific/linux/wis-go7007/default.nix
@@ -1,5 +1,16 @@
 {stdenv, fetchurl, kernel, ncurses, fxload}:
 
+let
+
+  # A patch to fix A/V sync, and to allow video to be played
+  # (e.g. using MPlayer) while the AVI is being recorded.
+  gorecordAV = fetchurl {
+    url = http://colabti.org/convertx/patch-av-aviheader.diff;
+    sha256 = "04qk58qigzwfdnn3mr3pg28qx4r89nlzdhgkvfipz36bsny23r50";
+  };
+
+in   
+
 stdenv.mkDerivation {
   name = "wis-go7007-0.9.8-${kernel.version}";
 
@@ -21,10 +32,17 @@ stdenv.mkDerivation {
     { url = http://home.comcast.net/~bender647/go7007/wis-go7007-2.6.24-no_algo_control.diff;
       sha256 = "1a7jkcsnzagir3wpsj60pjrr9wgfaqq21jlmq6s0qg9hqg4nzbvf";
     }
+  ] ++ [
+    # http://nikosapi.org/wiki/index.php/WIS_Go7007_Linux_driver#wis-streamer_fails_to_find_the_ALSA_audio_node_and_emulated_OSS_device_node
+    ./alsa.patch
   ];
 
   buildInputs = [ncurses];
 
+  postPatch = ''
+    (cd apps && patch < ${gorecordAV}) || false
+  '';
+
   preBuild = ''
     # Urgh, we need the complete kernel sources for some header
     # files.  So unpack the original kernel source tarball and copy