www.pudn.com > MyPlayerbylqh.rar > MediaBuffer.cpp

 
#include "MediaBuffer.h" 
#include  
 
 
MediaBuffer::MediaBuffer() 
{ 
	this->data = NULL; 
	this->size = 0; 
} 
 
MediaBuffer::~MediaBuffer() 
{ 
 
} 
 
 
void *MediaBuffer::GetData() 
{ 
	return this->data; 
} 
 
unsigned int MediaBuffer::GetSize() 
{ 
	return this->size; 
} 
 
 
 
MP_RESULT MediaBuffer::Alloc(int size) 
{ 
    unsigned int size_local; 
 
	if(this->data) 
		return MP_RESULT_ERROR; 
 
	this->size = size; 
 
	if(this->data != NULL) { 
	 
		free(this->data); 
	} 
 
	this->data = (void *) new char[size]; 
 
	if(this->data != NULL) { 
 
		memset(this->GetData(), 0, this->GetSize()); 
	} 
	else { 
 
		return MP_RESULT_ERROR; 
	} 
 
	return MP_RESULT_OK; 
} 
 
MP_RESULT MediaBuffer::ReAlloc(int size) 
{ 
	if(!this->data) 
		return MP_RESULT_ERROR; 
 
	this->data = realloc(this->data, size); 
	this->size = size; 
 
	return MP_RESULT_OK; 
} 
 
 
 
MP_RESULT MediaBuffer::Free() 
{ 
	if(this->data) 
		free(this->data); 
 
	this->data = NULL; 
 
	return MP_RESULT_OK; 
}