1 files changed, 112 insertions, 0 deletions
diff --git a/pjmedia/src/pjmedia-videodev/errno.c b/pjmedia/src/pjmedia-videodev/errno.c
new file mode 100644
index 00000000..c0729ca0
--- /dev/null
+++ b/pjmedia/src/pjmedia-videodev/errno.c
@@ -0,0 +1,112 @@
+/* $Id$ */
+/*
+ * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com)
+ *
+ * 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
+ */
+#include <pjmedia-videodev/errno.h>
+#include <pj/string.h>
+#include <pj/unicode.h>
+
+/* PJMEDIA-videodev's own error codes/messages
+ * MUST KEEP THIS ARRAY SORTED!!
+ * Message must be limited to 64 chars!
+ */
+
+#if defined(PJ_HAS_ERROR_STRING) && (PJ_HAS_ERROR_STRING != 0)
+
+static const struct
+{
+    int code;
+    const char *msg;
+} err_str[] =
+{
+    PJ_BUILD_ERR( PJMEDIA_EVID_ERR,	    "Unspecified video device error" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_SYSERR,	    "Unknown error from video driver" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_INIT,	    "video subsystem not initialized" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_INVDEV,	    "Invalid video device" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_NODEV,	    "Found no video devices" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_NODEFDEV,    "Unable to find default video device" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_NOTREADY,    "video device not ready" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_INVCAP,	    "Invalid or unsupported video capability" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_INVOP,	    "Invalid or unsupported video device operation" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_BADFORMAT,   "Bad or invalid video device format" ),
+    PJ_BUILD_ERR( PJMEDIA_EVID_SAMPFORMAT,  "Invalid video device sample format"),
+    PJ_BUILD_ERR( PJMEDIA_EVID_BADLATENCY,  "Bad video latency setting")
+
+};
+
+#endif	/* PJ_HAS_ERROR_STRING */
+
+
+
+/*
+ * pjmedia_videodev_strerror()
+ */
+PJ_DEF(pj_str_t) pjmedia_videodev_strerror(pj_status_t statcode,
+					   char *buf, pj_size_t bufsize )
+{
+    pj_str_t errstr;
+
+#if defined(PJ_HAS_ERROR_STRING) && (PJ_HAS_ERROR_STRING != 0)
+
+    /* videodev error */
+    if (statcode >= PJMEDIA_VIDEODEV_ERRNO_START &&
+	statcode < PJMEDIA_VIDEODEV_ERRNO_END)
+    {
+	/* Find the error in the table.
+	 * Use binary search!
+	 */
+	int first = 0;
+	int n = PJ_ARRAY_SIZE(err_str);
+
+	while (n > 0) {
+	    int half = n/2;
+	    int mid = first + half;
+
+	    if (err_str[mid].code < statcode) {
+		first = mid+1;
+		n -= (half+1);
+	    } else if (err_str[mid].code > statcode) {
+		n = half;
+	    } else {
+		first = mid;
+		break;
+	    }
+	}
+
+
+	if (PJ_ARRAY_SIZE(err_str) && err_str[first].code == statcode) {
+	    pj_str_t msg;
+
+	    msg.ptr = (char*)err_str[first].msg;
+	    msg.slen = pj_ansi_strlen(err_str[first].msg);
+
+	    errstr.ptr = buf;
+	    pj_strncpy_with_null(&errstr, &msg, bufsize);
+	    return errstr;
+
+	}
+    }
+#endif	/* PJ_HAS_ERROR_STRING */
+
+    /* Error not found. */
+    errstr.ptr = buf;
+    errstr.slen = pj_ansi_snprintf(buf, bufsize,
+				   "Unknown pjmedia-videodev error %d",
+				   statcode);
+
+    return errstr;
+}