diff options
Diffstat (limited to 'pjmedia/src/pjmedia-videodev/errno.c')
-rw-r--r-- | pjmedia/src/pjmedia-videodev/errno.c | 112 |
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; +} |