dr_69.c   dr_69.c 
/************************************************************************** *** /************************************************************************** ***
* dr_69.c * dr_69.c
* Copyright (C) 2007-2010 VideoLAN * Copyright (C) 2007-2011 VideoLAN
* $Id$ * $Id$
* *
* Authors: Jiri Pinkava <master_up@post.cz> * Authors: Jiri Pinkava <master_up@post.cz>
* *
* This library is free software; you can redistribute it and/or * This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either * License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version. * version 2.1 of the License, or (at your option) any later version.
* *
* This library is distributed in the hope that it will be useful, * This library is distributed in the hope that it will be useful,
skipping to change at line 28 skipping to change at line 28
* You should have received a copy of the GNU Lesser General Public * You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software * License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-130 1 USA * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-130 1 USA
* *
************************************************************************** ***/ ************************************************************************** ***/
#include "config.h" #include "config.h"
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <stdbool.h>
#include <string.h> #include <string.h>
#if defined(HAVE_INTTYPES_H) #if defined(HAVE_INTTYPES_H)
#include <inttypes.h> #include <inttypes.h>
#elif defined(HAVE_STDINT_H) #elif defined(HAVE_STDINT_H)
#include <stdint.h> #include <stdint.h>
#endif #endif
#include "../dvbpsi.h" #include "../dvbpsi.h"
#include "../dvbpsi_private.h" #include "../dvbpsi_private.h"
#include "../descriptor.h" #include "../descriptor.h"
#include "dr_69.h" #include "dr_69.h"
/************************************************************************** *** /************************************************************************** ***
* dvbpsi_DecodePDCDr * dvbpsi_DecodePDCDr
************************************************************************** ***/ ************************************************************************** ***/
dvbpsi_PDC_dr_t * dvbpsi_DecodePDCDr(dvbpsi_descriptor_t * p_descriptor) dvbpsi_PDC_dr_t * dvbpsi_DecodePDCDr(dvbpsi_descriptor_t * p_descriptor)
{ {
dvbpsi_PDC_dr_t * p_decoded; dvbpsi_PDC_dr_t * p_decoded;
/* Check the tag */ /* Check the tag */
if(p_descriptor->i_tag != 0x69) if (!dvbpsi_CanDecodeAsDescriptor(p_descriptor, 0x69))
{ return NULL;
DVBPSI_ERROR_ARG("dr_69 decoder", "bad tag (0x%x)", p_descriptor->i_tag
); /* Don't decode twice */
return NULL; if (dvbpsi_IsDescriptorDecoded(p_descriptor))
} return p_descriptor->p_decoded;
/* Don't decode twice */ /* Check the length */
if(p_descriptor->p_decoded) if (p_descriptor->i_length != 3)
return p_descriptor->p_decoded; return NULL;
/* Decode data and check the length */ /* Allocate memory */
if( p_descriptor->i_length != 3) p_decoded = (dvbpsi_PDC_dr_t*)malloc(sizeof(dvbpsi_PDC_dr_t));
{ if (!p_decoded)
DVBPSI_ERROR_ARG("dr_69 decoder", "bad length (%d)", return NULL;
p_descriptor->i_length);
return NULL; p_decoded->i_PDC[0] = ((p_descriptor->p_data[0] & 0x0f) << 1) |
} (p_descriptor->p_data[1] >> 7);
p_decoded->i_PDC[1] = ((p_descriptor->p_data[1] >> 3) & 0x0f);
/* Allocate memory */ p_decoded->i_PDC[2] = ((p_descriptor->p_data[1] << 2) & 0x1c) |
p_decoded = (dvbpsi_PDC_dr_t*)malloc(sizeof(dvbpsi_PDC_dr_t)); (p_descriptor->p_data[2] >> 6);
if(!p_decoded) p_decoded->i_PDC[3] = p_descriptor->p_data[2] & 0x3f;
{
DVBPSI_ERROR("dr_69 decoder", "out of memory");
return NULL;
}
p_decoded->i_PDC[0] = ((p_descriptor->p_data[0] & 0x0f) << 1) |
(p_descriptor->p_data[1] >> 7);
p_decoded->i_PDC[1] = ((p_descriptor->p_data[1] >> 3) & 0x0f);
p_decoded->i_PDC[2] = ((p_descriptor->p_data[1] << 2) & 0x1c) |
(p_descriptor->p_data[2] >> 6);
p_decoded->i_PDC[3] = p_descriptor->p_data[2] & 0x3f;
p_descriptor->p_decoded = (void*)p_decoded; p_descriptor->p_decoded = (void*)p_decoded;
return p_decoded; return p_decoded;
} }
/************************************************************************** *** /************************************************************************** ***
* dvbpsi_GenPDCDr * dvbpsi_GenPDCDr
************************************************************************** ***/ ************************************************************************** ***/
dvbpsi_descriptor_t * dvbpsi_GenPDCDr(dvbpsi_PDC_dr_t * p_decoded, dvbpsi_descriptor_t * dvbpsi_GenPDCDr(dvbpsi_PDC_dr_t * p_decoded,
int b_duplicate) bool b_duplicate)
{ {
/* Create the descriptor */ /* Create the descriptor */
dvbpsi_descriptor_t * p_descriptor = dvbpsi_descriptor_t * p_descriptor = dvbpsi_NewDescriptor(0x69, 3, NULL
dvbpsi_NewDescriptor(0x69, 3, NULL); );
if (!p_descriptor)
return NULL;
if(p_descriptor)
{
/* Encode data */ /* Encode data */
p_descriptor->p_data[0] = 0xf0 | (p_decoded->i_PDC[0] >> 1); p_descriptor->p_data[0] = 0xf0 | (p_decoded->i_PDC[0] >> 1);
p_descriptor->p_data[1] = (p_decoded->i_PDC[0] << 7) | p_descriptor->p_data[1] = (p_decoded->i_PDC[0] << 7) |
(p_decoded->i_PDC[1] << 3) | (p_decoded->i_PDC[2] >> 2); (p_decoded->i_PDC[1] << 3) |
(p_decoded->i_PDC[2] >> 2);
p_descriptor->p_data[2] = (p_decoded->i_PDC[2] << 6 ) | p_descriptor->p_data[2] = (p_decoded->i_PDC[2] << 6 ) |
p_decoded->i_PDC[3]; p_decoded->i_PDC[3];
if(b_duplicate) if (b_duplicate)
{ {
/* Duplicate decoded data */ /* Duplicate decoded data */
dvbpsi_PDC_dr_t * p_dup_decoded = p_descriptor->p_decoded =
(dvbpsi_PDC_dr_t*)malloc(sizeof(dvbpsi_PDC_dr_t)); dvbpsi_DuplicateDecodedDescriptor(p_decoded,
if(p_dup_decoded) sizeof(dvbpsi_PDC_dr_t));
memcpy(p_dup_decoded, p_decoded, sizeof(dvbpsi_PDC_dr_t));
p_descriptor->p_decoded = (void*)p_dup_decoded;
} }
}
return p_descriptor; return p_descriptor;
} }
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56 lines changed or deleted 43 lines changed or added

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