hmhd.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:2k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is MPEG4IP.
- *
- * The Initial Developer of the Original Code is Cisco Systems Inc.
- * Portions created by Cisco Systems Inc. are
- * Copyright (C) Cisco Systems Inc. 2000, 2001. All Rights Reserved.
- *
- * Contributor(s):
- * Dave Mackie dmackie@cisco.com
- */
- #include "quicktime.h"
- int quicktime_hmhd_init(quicktime_hmhd_t *hmhd)
- {
- hmhd->version = 0;
- hmhd->flags = 0;
- hmhd->maxPDUsize = 0;
- hmhd->avgPDUsize = 0;
- hmhd->maxbitrate = 0;
- hmhd->avgbitrate = 0;
- hmhd->slidingavgbitrate = 0;
- }
- int quicktime_hmhd_delete(quicktime_hmhd_t *hmhd)
- {
- }
- int quicktime_hmhd_dump(quicktime_hmhd_t *hmhd)
- {
- printf(" hint media headern");
- printf(" version %dn", hmhd->version);
- printf(" flags %dn", hmhd->flags);
- printf(" maxPDUsize %dn", hmhd->maxPDUsize);
- printf(" avgPDUsize %dn", hmhd->avgPDUsize);
- printf(" maxbitrate %dn", hmhd->maxbitrate);
- printf(" avgbitrate %dn", hmhd->avgbitrate);
- printf(" slidingavgbitrate %dn", hmhd->slidingavgbitrate);
- }
- int quicktime_read_hmhd(quicktime_t *file, quicktime_hmhd_t *hmhd)
- {
- int i;
- hmhd->version = quicktime_read_char(file);
- hmhd->flags = quicktime_read_int24(file);
- hmhd->maxPDUsize = quicktime_read_int16(file);
- hmhd->avgPDUsize = quicktime_read_int16(file);
- hmhd->maxbitrate = quicktime_read_int32(file);
- hmhd->avgbitrate = quicktime_read_int32(file);
- hmhd->slidingavgbitrate = quicktime_read_int32(file);
- }
- int quicktime_write_hmhd(quicktime_t *file, quicktime_hmhd_t *hmhd)
- {
- quicktime_atom_t atom;
- int i;
- quicktime_atom_write_header(file, &atom, "hmhd");
- quicktime_write_char(file, hmhd->version);
- quicktime_write_int24(file, hmhd->flags);
- quicktime_write_int16(file, hmhd->maxPDUsize);
- quicktime_write_int16(file, hmhd->avgPDUsize);
- quicktime_write_int32(file, hmhd->maxbitrate);
- quicktime_write_int32(file, hmhd->avgbitrate);
- quicktime_write_int32(file, hmhd->slidingavgbitrate);
- quicktime_atom_write_footer(file, &atom);
- }