www.pudn.com > h.264的源代码.rar > parsetcommon.c

/* 
*********************************************************************** 
* COPYRIGHT AND WARRANTY INFORMATION 
* 
* Copyright 2001, International Telecommunications Union, Geneva 
* 
* DISCLAIMER OF WARRANTY 
* 
* These software programs are available to the user without any 
* license fee or royalty on an "as is" basis. The ITU disclaims 
* any and all warranties, whether express, implied, or 
* statutory, including any implied warranties of merchantability 
* or of fitness for a particular purpose.  In no event shall the 
* contributor or the ITU be liable for any incidental, punitive, or 
* consequential damages of any kind whatsoever arising from the 
* use of these programs. 
* 
* This disclaimer of warranty extends to the user of these programs 
* and user's customers, employees, agents, transferees, successors, 
* and assigns. 
* 
* The ITU does not represent or warrant that the programs furnished 
* hereunder are free of infringement of any third-party patents. 
* Commercial implementations of ITU-T Recommendations, including 
* shareware, may be subject to royalty fees to patent holders. 
* Information regarding the ITU-T patent policy is available from 
* the ITU Web site at http://www.itu.int. 
* 
* THIS IS NOT A GRANT OF PATENT RIGHTS - SEE THE ITU-T PATENT POLICY. 
************************************************************************ 
*/ 
 
/*! 
 ************************************************************************************** 
 * \file 
 *    parset.c 
 * \brief 
 *    Picture and Sequence Parameter set generation and handling 
 *  \date 25 November 2002 
 * \author 
 *    Main contributors (see contributors.h for copyright, address and affiliation details)  
 *      - Stephan Wenger         
 * 
 ************************************************************************************** 
 */ 
#include  
#include  
#include  
#include  
 
#include "parsetcommon.h" 
#include "memalloc.h" 
/*!  
 ************************************************************************************* 
 * \brief 
 *    Allocates memory for a pps 
 * 
 * \param none 
 * 
 * \return 
 *    pointer to a pps 
 ************************************************************************************* 
 */ 
  
pic_parameter_set_rbsp_t *AllocPPS () 
 { 
   pic_parameter_set_rbsp_t *p; 
 
   if ((p=calloc (sizeof (pic_parameter_set_rbsp_t), 1)) == NULL) 
     no_mem_exit ("AllocPPS: PPS"); 
   if ((p->slice_group_id = calloc (SIZEslice_group_id, 1)) == NULL) 
     no_mem_exit ("AllocPPS: slice_group_id"); 
   return p; 
 } 
 
  
/*!  
 ************************************************************************************* 
 * \brief 
 *    Allocates memory for am sps 
 * 
 * \param none 
 * 
 * \return 
 *    pointer to a sps 
 ************************************************************************************* 
 */ 
  
seq_parameter_set_rbsp_t *AllocSPS () 
 { 
   seq_parameter_set_rbsp_t *p; 
 
   if ((p=calloc (sizeof (seq_parameter_set_rbsp_t), 1)) == NULL) 
     no_mem_exit ("AllocSPS: SPS"); 
   return p; 
 } 
 
  
/*!  
 ************************************************************************************* 
 * \brief 
 *    Frees a pps 
 * 
 * \param pps to be freed 
 * 
 * \return 
 *    none 
 ************************************************************************************* 
 */ 
  
 void FreePPS (pic_parameter_set_rbsp_t *pps) 
 { 
   assert (pps != NULL); 
   if (pps->slice_group_id != NULL) free (pps->slice_group_id); 
   free (pps); 
 } 
 
  
 /*!  
 ************************************************************************************* 
 * \brief 
 *    Frees a sps 
 * 
 * \param sps to be freed 
 * 
 * \return 
 *    none 
 ************************************************************************************* 
 */ 
  
 void FreeSPS (seq_parameter_set_rbsp_t *sps) 
 { 
   assert (sps != NULL); 
   free (sps);  
 }