| /* $Id$ */ |
| /* |
| * Copyright (C) 2008-2011 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(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0) |
| |
| |
| #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; |
| } |
| |
| |
| #endif /* PJMEDIA_HAS_VIDEO */ |