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CdsObjectToDidl.c
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CdsObjectToDidl.c
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/*****************************************************************************
* Copyright (C) 2012- Brad Love : b-rad at next dimension dot cc
* Next Dimension Innovations : http://nextdimension.cc
* http://b-rad.cc
* Copyright 2006 - 2011 Intel Corporation
*
* This file is part of TV-Now
* TV-Now is an Open Source DLNA Media Server. TV-Now's purpose is
* to serve Live TV (and recorded content) over the local network
* to televisions, computers, media players, tablets, and consoles.
* TV-Now delivers EPG data in the DLNA container for compatible
* clients and also offers an html5+jquery tv player with full EPG.
* TV-Now uses the libdvbtee library as its backend.
*
* TV-Now is compatible with:
* - ATSC
* - Clear QAM
* - DVB-T
*
* TV-Now 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 3 of the License, or
* (at your option) any later version.
*
* Note: All additional terms from Section 7 of GPLv3 apply to this software.
* This includes requiring preservation of specified reasonable legal
* notices or author attributions in the material or in the Appropriate
* Legal Notices displayed by this software.
*
* You should have received a copy of the GNU General Public License v3
* along with TV-Now. If not, see <http://www.gnu.org/licenses/>.
*
* An Apache 2.0 licensed version of this software is privately maintained
* for licensing to interested commercial parties. Apache 2.0 license is
* compatible with the GPLv3, which allows the Apache 2.0 version to be
* included in proprietary systems, while keeping the public GPLv3 version
* completely open source. GPLv3 can NOT be re-licensed as Apache 2.0, since
* Apache 2.0 license is only a subset of GPLv3. To inquire about licensing
* the commercial version of TV-Now contact: tv-now at nextdimension dot cc
*
* Note about contributions and patch submissions:
* The commercial Apache 2.0 version of TV-Now is used as the master.
* The GPLv3 version of TV-Now will be identical to the Apache 2.0 version.
* All contributions and patches are licensed under Apache 2.0
* By submitting a patch you implicitly agree to
* http://www.apache.org/licenses/icla.txt
* You retain ownership and when merged the license will be upgraded to GPLv3.
*
*****************************************************************************/
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include "CdsObjectToDidl.h"
#include "CdsStrings.h"
#include "CdsMediaClass.h"
#include "ILibParsers.h"
#ifdef WIN32
#ifndef _WIN32_WCE
#include <crtdbg.h>
#endif
#define strncasecmp(x,y,z) _strnicmp(x,y,z)
#endif
#ifdef _WIN32_WCE
#define strncasecmp(x,y,z) _strnicmp(x,y,z)
#endif
#define MAX_TIME_STRING_SIZE 17
/*
* Helper function.
* Returns the length for the specified string in its doubly-escaped form.
*/
int CdsObjectToDidl_Helper_DoubleEscapeLength(const char* data)
{
int i = 0, j = 0;
while (data[i] != 0)
{
switch (data[i])
{
case '"':
j += 10;
break;
case '\'':
j += 10;
break;
case '<':
j += 8;
break;
case '>':
j += 8;
break;
case '&':
j += 9;
break;
default:
j++;
}
i++;
}
return j;
}
int CdsObjectToDidl_Helper_DoubleEscape(char* outdata, const char* indata)
{
int i=0;
int inlen;
char* out;
out = outdata;
inlen = (int)strlen(indata);
for (i=0; i < inlen; i++)
{
if (indata[i] == '"')
{
memcpy(out, "&quot;", 10);
out = out + 10;
}
else
if (indata[i] == '\'')
{
memcpy(out, "&apos;", 10);
out = out + 10;
}
else
if (indata[i] == '<')
{
memcpy(out, "&lt;", 8);
out = out + 8;
}
else
if (indata[i] == '>')
{
memcpy(out, "&gt;", 8);
out = out + 8;
}
else
if (indata[i] == '&')
{
memcpy(out, "&amp;", 9);
out = out + 9;
}
else
{
out[0] = indata[i];
out++;
}
}
out[0] = 0;
return (int)(out - outdata);
}
/*
* Prints the number of seconds in hh:mm:ss format.
* Negative values do not write anything.
*/
void CdsObjectToDidl_Helper_WriteTimeString(char* str, int intTime)
{
if (intTime > 0)
{
sprintf(str,"%02d:%02d:%02d",((intTime/3600)%60),((intTime/60)%60),(intTime%60));
}
}
/* see header file */
unsigned int CdsToDidl_GetFilterBitString(const char *filter)
{
unsigned int retVal = 0;
int i=0;
int nextComma = 0;
if (filter != NULL)
{
if (filter[0] != '*')
{
/*
* The filter string is comma-delimited.
* Do a linear parse and set bits in the retVal
* for supported fields.
*
* All supported, filterable metadata fields begin with
* dc:, upnp:, res, container@, or @.
*/
while (filter[i] != '\0')
{
if (nextComma == 0)
{
switch (filter[i])
{
case '@':
nextComma = 1;
/* Only supported filterable field are container@childCount and container@searchable */
if (strncasecmp(filter+i, CDS_FILTER_CHILDCOUNT, CDS_FILTER_CHILDCOUNT_LEN) == 0)
{
retVal |= CdsFilter_ChildCount;
}
else if (strncasecmp(filter+i, CDS_FILTER_SEARCHABLE, CDS_FILTER_SEARCHABLE_LEN) == 0)
{
retVal |= CdsFilter_Searchable;
}
break;
case 'c':
nextComma = 1;
/* Only supported filterable field are container@childCount and container@searchable */
if (strncasecmp(filter+i, CDS_FILTER_CONTAINER_CHILDCOUNT, CDS_FILTER_CONTAINER_CHILDCOUNT_LEN) == 0)
{
retVal |= CdsFilter_ChildCount;
}
else if (strncasecmp(filter+i, CDS_FILTER_CONTAINER_SEARCHABLE, CDS_FILTER_CONTAINER_SEARCHABLE_LEN) == 0)
{
retVal |= CdsFilter_Searchable;
}
break;
case 'd':
nextComma = 1;
/* Only supported filterable field is dc:creator. (dc:title is always required.) */
if (strncasecmp(filter+i, CDS_FILTER_CREATOR, CDS_FILTER_CREATOR_LEN) == 0)
{
retVal |= CdsFilter_Creator;
}
break;
case 'u':
/* Only supported filterable field is upnp:album and upnp:genre */
if (strncasecmp(filter+i, CDS_FILTER_ALBUM, CDS_FILTER_ALBUM_LEN) == 0)
{
retVal |= CdsFilter_Album;
}
else if (strncasecmp(filter+i, CDS_FILTER_GENRE, CDS_FILTER_GENRE_LEN) == 0)
{
retVal |= CdsFilter_Genre;
}
nextComma = 1;
break;
case 'r':
nextComma = 1;
/* only supported fields are: res, resolution, duration, bitrate, colordepth, size */
if (strncasecmp(filter+i, CDS_FILTER_RES_BITRATE, CDS_FILTER_RES_BITRATE_LEN) == 0)
{
retVal |= CdsFilter_Res;
retVal |= CdsFilter_Bitrate;
}
else if (strncasecmp(filter+i, CDS_FILTER_RES_BITSPERSAMPLE, CDS_FILTER_RES_BITSPERSAMPLE_LEN) == 0)
{
retVal |= CdsFilter_Res;
retVal |= CdsFilter_BitsPerSample;
}
else if (strncasecmp(filter+i, CDS_FILTER_RES_COLORDEPTH, CDS_FILTER_RES_COLORDEPTH_LEN) == 0)
{
retVal |= CdsFilter_Res;
retVal |= CdsFilter_ColorDepth;
}
else if (strncasecmp(filter+i, CDS_FILTER_RES_DURATION, CDS_FILTER_RES_DURATION_LEN) == 0)
{
retVal |= CdsFilter_Res;
retVal |= CdsFilter_Duration;
}
else if (strncasecmp(filter+i, CDS_FILTER_RES_NRAUDIOCHANNELS, CDS_FILTER_RES_NRAUDIOCHANNELS_LEN) == 0)
{
retVal |= CdsFilter_Res;
retVal |= CdsFilter_nrAudioChannels;
}
else if (strncasecmp(filter+i, CDS_FILTER_RES_PROTECTION, CDS_FILTER_RES_PROTECTION_LEN) == 0)
{
retVal |= CdsFilter_Res;
retVal |= CdsFilter_Protection;
}
else if (strncasecmp(filter+i, CDS_FILTER_RES_RESOLUTION, CDS_FILTER_RES_RESOLUTION_LEN) == 0)
{
retVal |= CdsFilter_Res;
retVal |= CdsFilter_Resolution;
}
else if (strncasecmp(filter+i, CDS_FILTER_RES_SAMPLEFREQUENCY, CDS_FILTER_RES_SAMPLEFREQUENCY_LEN) == 0)
{
retVal |= CdsFilter_Res;
retVal |= CdsFilter_SampleFrequency;
}
else if (strncasecmp(filter+i, CDS_FILTER_RES_SIZE, CDS_FILTER_RES_SIZE_LEN) == 0)
{
retVal |= CdsFilter_Res;
retVal |= CdsFilter_Size;
}
else if (strncasecmp(filter+i, CDS_FILTER_RES, CDS_FILTER_RES_LEN) == 0)
{
/* "res" must be tested after all res attributes */
retVal |= CdsFilter_Res;
}
break;
default:
/*
* If the character is an alphabetic char, then go to the next comma
* because we know that this character is not for something we support.
*/
if (isalpha(filter[i]))
{
nextComma = 1;
}
}
}
else
{
/* We're trying to find the next comma... so if we find it, set the nextComma flag to zero. */
if (filter[i] == ',')
{
nextComma = 0;
}
}
/* move to the next char */
i++;
}
}
else
{
/* assume unsigned int is 32 bits wide */
retVal = 0xFFFFFFFF;
}
}
return retVal;
}
typedef int (*CdsToDidl_Fn_XmlEscapeLength) (const char* string);
typedef int (*CdsToDidl_Fn_XmlEscape) (char *dest, const char* src);
/* see header file */
char* CdsToDidl_GetMediaObjectDidlEscaped (struct CdsMediaObject *mediaObj, int metadataXmlEscaped, unsigned int filter, int includeHeaderFooter, int *outErrorOrDidlLen)
{
char *retVal = NULL;
int size = 1; /* allocation size of retVal: minimum of a null character needed; if value is ever negative, then there's an error. */
int len = 0; /* actual length of the string in retVal */
int imc_Object = -1, imc_Major = -1, imc_Minor1 = -1, imc_Minor2 = -1; /* index into the various CDS_CLASS_xxx string arrays */
struct CdsMediaResource *res;
unsigned int printThese = 0; /* similar to filter, except indicates which fields will actually get printed */
char *cp = NULL;
char timeString[MAX_TIME_STRING_SIZE];
char dateString[128] = { 0 };
time_t tmpTime;
struct tm *tmDate;
CdsToDidl_Fn_XmlEscapeLength fnEscapeLength;
CdsToDidl_Fn_XmlEscape fnEscape;
/*
* Given the info about the metadata,
* obtain function pointers to the appropriate
* functions for calculating lengths and escaping strings.
*/
if (metadataXmlEscaped)
{
fnEscapeLength = ILibXmlEscapeLength;
fnEscape = ILibXmlEscape;
}
else
{
fnEscapeLength = CdsObjectToDidl_Helper_DoubleEscapeLength;
fnEscape = CdsObjectToDidl_Helper_DoubleEscape;
}
/*
* Include length needed for metadata content.
* We need to doubly-escape because the data is a value of an XML element or attribute,
* but the DIDL-Lite XML itself needs to be escaped, so this means all of the
* values of XML attributes and elements need escaping too.
*
* If at any point we determine there's an error with the media object, we
* set "size" to an appropriate negative error value.
*/
if ((mediaObj->ID != NULL) && ((int)strlen(mediaObj->ID) > 0))
{
size += fnEscapeLength(mediaObj->ID);
if ((mediaObj->ParentID != NULL) && (strlen(mediaObj->ParentID) > 0))
{
size += fnEscapeLength(mediaObj->ParentID);
if ((mediaObj->Title != NULL) && (strlen(mediaObj->Title) > 0))
{
size += (CDS_DIDL_TITLE_ESCAPED_LEN + fnEscapeLength(mediaObj->Title));
/* ObjectID, ParentID, and Title are valid... */
if (mediaObj->RefID != NULL)
{
size += fnEscapeLength(mediaObj->RefID);
}
/* do not add memory for creator unless requested by the metadata filter */
if ((mediaObj->Creator != NULL) && (filter & CdsFilter_Creator))
{
size += (CDS_DIDL_CREATOR_ESCAPED_LEN + fnEscapeLength(mediaObj->Creator));
printThese |= CdsFilter_Creator;
}
/* do not add memory for album unless requested by the metadata filter */
if ((mediaObj->Album != NULL) && (filter & CdsFilter_Album))
{
size += (CDS_DIDL_ALBUM_ESCAPED_LEN + fnEscapeLength(mediaObj->Album));
printThese |= CdsFilter_Album;
}
/* do not add memory for genre unless requested by the metadata filter */
if ((mediaObj->Genre != NULL) && (filter & CdsFilter_Genre))
{
size += (CDS_DIDL_GENRE_ESCAPED_LEN + fnEscapeLength(mediaObj->Genre));
printThese |= CdsFilter_Genre;
/* TODO: support genre@extended */
}
/* validate the media class */
if ((mediaObj->MediaClass != 0) & (size > 0))
{
if (
(mediaObj->RefID != NULL) &&
((mediaObj->MediaClass & CDS_CLASS_MASK_CONTAINER) != 0)
)
{
/* media class is a container of some sort, but we have refID value - this is an error */
size = Error_CdsObjectToDidl_MismatchContainerRefID;
}
else
{
imc_Object = mediaObj->MediaClass & CDS_CLASS_MASK_OBJECTTYPE;
imc_Major = (mediaObj->MediaClass & CDS_CLASS_MASK_MAJOR) >> CDS_SHIFT_MAJOR_TYPE;
imc_Minor1 = (mediaObj->MediaClass & CDS_CLASS_MASK_MINOR1) >> CDS_SHIFT_MINOR1_TYPE;
imc_Minor2 = (mediaObj->MediaClass & CDS_CLASS_MASK_MINOR2) >> CDS_SHIFT_MINOR2_TYPE;
/* check for various error conditions with media class */
if ((imc_Object > CDS_CLASS_OBJECT_TYPE_LEN) || (imc_Object < 1))
{
size = Error_CdsObjectToDidl_UndefinedObjectType;
}
else if ((imc_Major > CDS_CLASS_MAJOR_TYPE_LEN) || (imc_Major < 0))
{
size = Error_CdsObjectToDidl_UndefinedMajorType;
}
else if ((imc_Minor1 > CDS_CLASS_MINOR1_TYPE_LEN) || (imc_Minor1 < 0))
{
size = Error_CdsObjectToDidl_UndefinedMinor1Type;
}
else if ((imc_Minor2 > CDS_CLASS_MINOR2_TYPE_LEN) || (imc_Minor2 < 0))
{
size = Error_CdsObjectToDidl_UndefinedMinor2Type;
}
else
{
/* media class is valid - calculate length - assume no strings need escaping */
size += (int) strlen(CDS_CLASS_OBJECT_TYPE[imc_Object]);
size += (int) strlen(CDS_CLASS_MAJOR_TYPE[imc_Major]);
size += (int) strlen(CDS_CLASS_MINOR1_TYPE[imc_Minor1]);
size += (int) strlen(CDS_CLASS_MINOR2_TYPE[imc_Minor2]);
size += CDS_DIDL_CLASS_ESCAPED_LEN + 4; /*add 4 for additional . chars */
/*
* Note the length needed for item/container element open and close tags.
* Also note additional length for restricted, searchable attributes.
*/
size++; /* restricted */
if ((mediaObj->MediaClass & CDS_CLASS_MASK_CONTAINER) != 0)
{
size++; /* byte for searchable flag */
size +=10; /* bytes for childCount attribute */
size += CDS_DIDL_CONTAINER_START_ESCAPED_LEN;
size += CDS_DIDL_CONTAINER_END_ESCAPED_LEN;
if ((mediaObj->MediaClass & CDS_MEDIACLASS_EPGCONTAINER) != 0)
{
if (mediaObj->epgProviderName != NULL && filter & CdsFilter_epgProviderName)
{
size += CDS_DIDL_EPG_PROVIDER_LEN;
size += fnEscapeLength(mediaObj->epgProviderName);
printThese |= CdsFilter_epgProviderName;
}
if (mediaObj->serviceProvider && filter & CdsFilter_ServiceProvider)
{
printThese |= CdsFilter_ServiceProvider;
size += CDS_DIDL_SVC_PROVIDER_LEN;
size += fnEscapeLength(mediaObj->serviceProvider);
}
if (mediaObj->ChannelID && filter & CdsFilter_ChannelID)
{
printThese |= CdsFilter_ChannelID;
size += CDS_DIDL_CHANNEL_ID_LEN;
size += fnEscapeLength(mediaObj->ChannelID);
}
if (mediaObj->DateTimeRange.start > 0 && mediaObj->DateTimeRange.duration > 0 &&
filter & CdsFilter_DateTimeRange)
{
printThese |= CdsFilter_DateTimeRange;
size += CDS_DIDL_DATE_RANGE_LEN;
size += 64; /* length should be 41, pad for various formats */
}
}
}
else if ((mediaObj->MediaClass & CDS_CLASS_MASK_ITEM) != 0)
{
if (mediaObj->RefID != NULL)
{
size += CDS_DIDL_REFITEM_START_ESCAPED_LEN;
}
else
{
size += CDS_DIDL_ITEM_START_ESCAPED_LEN;
}
size += CDS_DIDL_ITEM_END_ESCAPED_LEN;
}
/*
* At this point, we add the amount of memory needed
* for the resource elements to the size... if and only
* if <res> elements were requsted.
*/
if (filter & CdsFilter_Res)
{
printThese |= CdsFilter_Res;
res = mediaObj->Res;
while (res != NULL)
{
/* add size for minimal <res> element and its metadata */
size += (CDS_DIDL_RES_START_ESCAPED_LEN + CDS_DIDL_RES_VALUE_ESCAPED_LEN);
size += fnEscapeLength(res->ProtocolInfo);
if (res->Value != NULL)
{
size += fnEscapeLength(res->Value);
}
if ((res->Bitrate >= 0) && (filter & CdsFilter_Bitrate))
{
printThese |= CdsFilter_Bitrate;
size += (CDS_DIDL_ATTRIB_BITRATE_ESCAPED_LEN + SIZE_INT32_AS_CHARS);
}
if ((res->BitsPerSample >= 0) && (filter & CdsFilter_BitsPerSample))
{
printThese |= CdsFilter_BitsPerSample;
size += (CDS_DIDL_ATTRIB_BITSPERSAMPLE_ESCAPED_LEN + SIZE_INT32_AS_CHARS);
}
if ((res->ColorDepth >= 0) && (filter & CdsFilter_ColorDepth))
{
printThese |= CdsFilter_ColorDepth;
size += (CDS_DIDL_ATTRIB_COLORDEPTH_ESCAPED_LEN + SIZE_INT32_AS_CHARS);
}
if ((res->Duration >= 0) && (filter & CdsFilter_Duration))
{
printThese |= CdsFilter_Duration;
size += (CDS_DIDL_ATTRIB_DURATION_ESCAPED_LEN + MAX_TIME_STRING_SIZE);
}
if ((res->NrAudioChannels >= 0) && (filter & CdsFilter_nrAudioChannels))
{
printThese |= CdsFilter_nrAudioChannels;
size += (CDS_DIDL_ATTRIB_NRAUDIOCHANNELS_ESCAPED_LEN + SIZE_INT32_AS_CHARS);
}
if ((res->Protection != NULL) && (filter & CdsFilter_Protection))
{
printThese |= CdsFilter_Protection;
size += (CDS_DIDL_ATTRIB_PROTECTION_ESCAPED_LEN + fnEscapeLength(res->Protection) + 1);
}
if ((res->ResolutionX >= 0) && (res->ResolutionY > 0) && (filter & CdsFilter_Resolution))
{
printThese |= CdsFilter_Resolution;
size += (CDS_DIDL_ATTRIB_RESOLUTION_ESCAPED_LEN + SIZE_INT32_AS_CHARS + SIZE_INT32_AS_CHARS);
}
if ((res->SampleFrequency >= 0) && (filter & CdsFilter_SampleFrequency))
{
printThese |= CdsFilter_SampleFrequency;
size += (CDS_DIDL_ATTRIB_SAMPLEFREQUENCY_ESCAPED_LEN + SIZE_INT32_AS_CHARS);
}
if ((res->Size >= 0) && (filter & CdsFilter_Size))
{
printThese |= CdsFilter_Size;
size += (CDS_DIDL_ATTRIB_SIZE_ESCAPED_LEN + SIZE_INT64_AS_CHARS);
}
res = res->Next;
}
}
if (mediaObj->ChannelNr != NULL && filter & CdsFilter_ChannelNr)
{
printThese |= CdsFilter_ChannelNr;
size += CDS_DIDL_CHANNEL_NUM_LEN;
size += fnEscapeLength(mediaObj->ChannelNr);
}
if (mediaObj->ChannelName != NULL && filter & CdsFilter_ChannelName)
{
printThese |= CdsFilter_ChannelName;
size += CDS_DIDL_CHANNEL_NAME_LEN;
size += fnEscapeLength(mediaObj->ChannelName);
}
if (mediaObj->ChannelID != NULL && filter & CdsFilter_ChannelID)
{
printThese |= CdsFilter_ChannelID;
size += CDS_DIDL_CHANNEL_ID_LEN;
size += fnEscapeLength(mediaObj->ChannelID);
}
if (mediaObj->CallSign != NULL && filter & CdsFilter_CallSign)
{
printThese |= CdsFilter_CallSign;
size += CDS_DIDL_CALL_SIGN_LEN;
size += fnEscapeLength(mediaObj->CallSign);
}
if (mediaObj->NetworkAffiliation != NULL && filter & CdsFilter_NetworkAffil)
{
printThese |= CdsFilter_NetworkAffil;
size += CDS_DIDL_NETWORK_AFFIL_LEN;
size += fnEscapeLength(mediaObj->NetworkAffiliation);
}
if (mediaObj->Recordable >= 0 && filter & CdsFilter_Recordable)
{
printThese |= CdsFilter_Recordable;
size += CDS_DIDL_RECORDABLE_LEN + 3;
}
if (mediaObj->Date > 0 && filter & CdsFilter_Date)
{
printThese |= CdsFilter_Date;
size += CDS_DIDL_DATE_LEN + 32;
}
if (mediaObj->ScheduledStartTime > 0 && filter & CdsFilter_SchedStartTime)
{
printThese |= CdsFilter_SchedStartTime;
size += CDS_DIDL_START_TIME_LEN + 32;
}
if (mediaObj->ScheduledEndTime > 0 && filter & CdsFilter_SchedEndTime)
{
printThese |= CdsFilter_SchedEndTime;
size += CDS_DIDL_END_TIME_LEN + 32;
}
if (mediaObj->ScheduledDurationTime > 0 && filter & CdsFilter_SchedDurationTime)
{
printThese |= CdsFilter_SchedDurationTime;
size += CDS_DIDL_DURATION_LEN + 16;
}
if (mediaObj->ProgramID != NULL && filter & CdsFilter_ProgramID)
{
printThese |= CdsFilter_ProgramID;
size += CDS_DIDL_PROGRAM_ID_LEN;
size += fnEscapeLength(mediaObj->ProgramID);
}
if (mediaObj->SeriesID != NULL && filter & CdsFilter_SeriesID)
{
printThese |= CdsFilter_SeriesID;
size += CDS_DIDL_SERIES_ID_LEN;
size += fnEscapeLength(mediaObj->SeriesID);
}
if (mediaObj->EpisodeNumber != NULL && filter & CdsFilter_EpisodeNumber)
{
printThese |= CdsFilter_EpisodeNumber;
size += CDS_DIDL_EPISODE_NR_LEN;
size += fnEscapeLength(mediaObj->EpisodeNumber);
}
if (mediaObj->EpisodeSeason != NULL && filter & CdsFilter_EpisodeSeason)
{
printThese |= CdsFilter_EpisodeSeason;
size += CDS_DIDL_EPISODE_SEASON_LEN;
size += fnEscapeLength(mediaObj->EpisodeSeason);
}
if (mediaObj->EpisodeType != NULL && filter & CdsFilter_EpisodeType)
{
printThese |= CdsFilter_EpisodeType;
size += CDS_DIDL_EPISODE_TYPE_LEN;
size += fnEscapeLength(mediaObj->EpisodeType);
}
if (mediaObj->LongDescription != NULL && filter & CdsFilter_LongDescription)
{
printThese |= CdsFilter_LongDescription;
size += CDS_DIDL_LONG_DESCR_LEN;
size += fnEscapeLength(mediaObj->LongDescription);
}
if (mediaObj->Rating != NULL && filter & CdsFilter_Rating)
{
printThese |= CdsFilter_Rating;
size += CDS_DIDL_RATING_LEN;
size += fnEscapeLength(mediaObj->Rating);
/* TODO: support rating@type */
}
if (mediaObj->Language != NULL && filter & CdsFilter_Language)
{
printThese |= CdsFilter_Language;
size += CDS_DIDL_LANGUAGE_LEN;
size += fnEscapeLength(mediaObj->Language);
}
if (mediaObj->Actor != NULL && filter & CdsFilter_Actor)
{
/* TODO: support multiple actors */
printThese |= CdsFilter_Actor;
size += CDS_DIDL_ACTOR_LEN;
size += fnEscapeLength(mediaObj->Actor);
}
if (mediaObj->AlbumArtURI != NULL && filter & CdsFilter_AlbumArtURI)
{
printThese |= CdsFilter_AlbumArtURI;
size += CDS_DIDL_RES_THUMBNAIL_LEN;
size += fnEscapeLength(mediaObj->AlbumArtURI);
}
if (includeHeaderFooter != 0)
{
/* appropriately include length for header/footer, if requested */
size += CDS_DIDL_HEADER_ESCAPED_LEN;
size += CDS_DIDL_FOOTER_ESCAPED_LEN;
}
}
}
}
else
{
/* invalid media class - this is an error */
size = Error_CdsObjectToDidl_InvalidMediaClass;
}
}
else
{
/* title cannot be empty or null */
size = Error_CdsObjectToDidl_EmptyTitle;
}
}
else
{
/* parent ID must not be empty or null */
size = Error_CdsObjectToDidl_EmptyParentID;
}
}
else
{
/* object ID cannot be empty or null */
size = Error_CdsObjectToDidl_EmptyObjectID;
}
if (size > 0)
{
/*
* If this code executes, then the media object can be serialized to DIDL-Lite
* without any problems.
*/
/* TODO: something is overrunning the buffer FIX THIS */
cp = retVal = (char*) malloc (size + 128);
/* print DIDL-Lite element if requested */
if (includeHeaderFooter != 0)
{
cp += sprintf(cp, CDS_DIDL_HEADER_ESCAPED);
}
/* print <item> or <container> start */
if ((mediaObj->MediaClass & CDS_CLASS_MASK_CONTAINER) != 0)
{
cp += sprintf(cp, CDS_DIDL_CONTAINER_START1_ESCAPED);
cp += fnEscape(cp, mediaObj->ID);
cp += sprintf(cp, CDS_DIDL_CONTAINER_START2_ESCAPED);
cp += fnEscape(cp, mediaObj->ParentID);
cp += sprintf(cp, CDS_DIDL_CONTAINER_START3_ESCAPED);
if (mediaObj->Flags & CDS_OBJPROP_FLAGS_Restricted)
{
cp[0] = '1';
}
else
{
cp[0] = '0';
}
cp++;
if (filter & CdsFilter_Searchable)
{
cp += sprintf(cp, CDS_DIDL_CONTAINER_START4_ESCAPED);
if (mediaObj->Flags & CDS_OBJPROP_FLAGS_Searchable )
{
cp[0] = '1';
}
else
{
cp[0] = '0';
}
cp++;
}
if (filter & CdsFilter_ChildCount)
{
cp += sprintf(cp, CDS_DIDL_CONTAINER_START5_ESCAPED, mediaObj->ChildCount);
}
cp += sprintf(cp, CDS_DIDL_CONTAINER_START6_ESCAPED);
}
else
{
cp += sprintf(cp, CDS_DIDL_ITEM_START1_ESCAPED);
cp += fnEscape(cp, mediaObj->ID);
cp += sprintf(cp, CDS_DIDL_ITEM_START2_ESCAPED);
cp += fnEscape(cp, mediaObj->ParentID);
cp += sprintf(cp, CDS_DIDL_ITEM_START3_ESCAPED);
if (mediaObj->Flags & CDS_OBJPROP_FLAGS_Restricted)
{
cp[0] = '1';
}
else
{
cp[0] = '0';
}
cp++;
if ((mediaObj->RefID != NULL) && (strlen(mediaObj->RefID) > 0))
{
cp += sprintf(cp, CDS_DIDL_REFITEM_START4_ESCAPED);
cp += fnEscape(cp, mediaObj->RefID);
cp += sprintf(cp, CDS_DIDL_REFITEM_START5_ESCAPED);
}
else
{
cp += sprintf(cp, CDS_DIDL_ITEM_START4_ESCAPED);
}
}
/* print title */
cp += sprintf(cp, CDS_DIDL_TITLE1_ESCAPED);
cp += fnEscape(cp, mediaObj->Title);
cp += sprintf(cp, CDS_DIDL_TITLE2_ESCAPED);
/* print media class */
cp += sprintf(cp, CDS_DIDL_CLASS1_ESCAPED);
cp += sprintf(cp, CDS_CLASS_OBJECT_TYPE[imc_Object]);
if (imc_Major > 0) { cp += sprintf(cp, ".%s", CDS_CLASS_MAJOR_TYPE[imc_Major]); }
if (imc_Minor1 > 0) { cp += sprintf(cp, ".%s", CDS_CLASS_MINOR1_TYPE[imc_Minor1]); }
if (imc_Minor2 > 0) { cp += sprintf(cp, ".%s", CDS_CLASS_MINOR2_TYPE[imc_Minor2]); }
cp += sprintf(cp, CDS_DIDL_CLASS2_ESCAPED);
/* print resource and appropriate fields */
if (printThese & CdsFilter_Res)
{
res = mediaObj->Res;
while (res != NULL)
{
/*
* Need to double escape because DIDL-Lite is XML and the DIDL-Lite is
* going within a SOAP response message, which is also XML.
*/
cp += sprintf(cp, CDS_DIDL_RES_START1_ESCAPED);
if (metadataXmlEscaped)
{
cp += ILibXmlEscape(cp, res->ProtocolInfo);
}
else
{
cp += CdsObjectToDidl_Helper_DoubleEscape(cp, res->ProtocolInfo);
}
cp += sprintf(cp, CDS_DIDL_RES_START2_ESCAPED);
if ((res->Bitrate >= 0) && (printThese & CdsFilter_Bitrate))
{
/* CDS spec is strange in that bitRate is actually supposed to have the byte rate */
cp += sprintf(cp, CDS_DIDL_ATTRIB_BITRATE_ESCAPED, (res->Bitrate / 8));
}
if ((res->BitsPerSample >= 0) && (printThese & CdsFilter_BitsPerSample))
{
cp += sprintf(cp, CDS_DIDL_ATTRIB_BITSPERSAMPLE_ESCAPED, res->BitsPerSample);
}
if ((res->ColorDepth >= 0) && (printThese & CdsFilter_ColorDepth))
{
cp += sprintf(cp, CDS_DIDL_ATTRIB_COLORDEPTH_ESCAPED, res->ColorDepth);
}
if ((res->Duration >= 0) && (printThese & CdsFilter_Duration))
{
CdsObjectToDidl_Helper_WriteTimeString(timeString, res->Duration);
cp += sprintf(cp, CDS_DIDL_ATTRIB_DURATION_ESCAPED, timeString);
}
if ((res->NrAudioChannels >= 0) && (printThese & CdsFilter_nrAudioChannels))
{
cp += sprintf(cp, CDS_DIDL_ATTRIB_NRAUDIOCHANNELS_ESCAPED, res->NrAudioChannels);
}
if ((res->Protection != NULL) && (printThese & CdsFilter_Protection))
{
cp += sprintf(cp, CDS_DIDL_ATTRIB_PROTECTION_START);
cp += fnEscape(cp, res->Protection);
cp += sprintf(cp, CDS_DIDL_ATTRIB_PROTECTION_END);
}
if ((res->ResolutionX >= 0) && (res->ResolutionY >= 0) && (printThese & CdsFilter_Resolution))
{
cp += sprintf(cp, CDS_DIDL_ATTRIB_RESOLUTION_ESCAPED, res->ResolutionX, res->ResolutionY);
}
if ((res->SampleFrequency >= 0) && (printThese & CdsFilter_SampleFrequency))
{
cp += sprintf(cp, CDS_DIDL_ATTRIB_SAMPLEFREQUENCY_ESCAPED, res->SampleFrequency);
}
if ((res->Size >= 0) && (printThese & CdsFilter_Size))
{
cp += sprintf(cp, CDS_DIDL_ATTRIB_SIZE_ESCAPED, res->Size);
}
cp += sprintf(cp, CDS_DIDL_RES_VALUE1_ESCAPED);
if (res->Value != NULL)
{
cp += fnEscape(cp, res->Value);
}
cp += sprintf(cp, CDS_DIDL_RES_VALUE2_ESCAPED);
res = res->Next;
}
}
if (mediaObj->epgProviderName && printThese & CdsFilter_epgProviderName)
{
cp += sprintf(cp, CDS_DIDL_EPG_PROVIDER1);
cp += fnEscape(cp, mediaObj->epgProviderName);
cp += sprintf(cp, CDS_DIDL_EPG_PROVIDER2);
}
if (mediaObj->serviceProvider && printThese & CdsFilter_ServiceProvider)
{
cp += sprintf(cp, CDS_DIDL_SVC_PROVIDER1);
cp += fnEscape(cp, mediaObj->serviceProvider);
cp += sprintf(cp, CDS_DIDL_SVC_PROVIDER2);
}
if (mediaObj->ChannelID && printThese & CdsFilter_ChannelID)
{
cp += sprintf(cp, CDS_DIDL_CHANNEL_ID1);
cp += fnEscape(cp, mediaObj->ChannelID);
cp += sprintf(cp, CDS_DIDL_CHANNEL_ID2);
}
if (mediaObj->ChannelNr && printThese & CdsFilter_ChannelNr)
{
cp += sprintf(cp, CDS_DIDL_CHANNEL_NUM1);
cp += fnEscape(cp, mediaObj->ChannelNr);
cp += sprintf(cp, CDS_DIDL_CHANNEL_NUM2);
}
if (mediaObj->ChannelName && printThese & CdsFilter_ChannelName)
{
cp += sprintf(cp, CDS_DIDL_CHANNEL_NAME1);
cp += fnEscape(cp, mediaObj->ChannelName);
cp += sprintf(cp, CDS_DIDL_CHANNEL_NAME2);
}
if (mediaObj->CallSign && printThese & CdsFilter_CallSign)
{
cp += sprintf(cp, CDS_DIDL_CALL_SIGN1);
cp += fnEscape(cp, mediaObj->CallSign);
cp += sprintf(cp, CDS_DIDL_CALL_SIGN2);
}
if (mediaObj->NetworkAffiliation && printThese & CdsFilter_NetworkAffil)
{
cp += sprintf(cp, CDS_DIDL_NETWORK_AFFIL1);
cp += fnEscape(cp, mediaObj->NetworkAffiliation);
cp += sprintf(cp, CDS_DIDL_NETWORK_AFFIL2);
}
if (mediaObj->Recordable >= 0 && printThese & CdsFilter_Recordable)
{
cp += sprintf(cp, "%s%d%s", CDS_DIDL_RECORDABLE1, mediaObj->Recordable, CDS_DIDL_RECORDABLE2);
}
if (mediaObj->LongDescription && printThese & CdsFilter_LongDescription)
{
cp += sprintf(cp, CDS_DIDL_LONG_DESCR1);
cp += fnEscape(cp, mediaObj->LongDescription);
cp += sprintf(cp, CDS_DIDL_LONG_DESCR2);
}
if (mediaObj->Rating && printThese & CdsFilter_Rating)
{
/* TODO: support rating@type */
cp += sprintf(cp, CDS_DIDL_RATING1);
cp += fnEscape(cp, mediaObj->Rating);
cp += sprintf(cp, CDS_DIDL_RATING2);
}
if (mediaObj->Creator && printThese & CdsFilter_Creator)
{
cp += sprintf(cp, CDS_DIDL_CREATOR1_ESCAPED);
cp += fnEscape(cp, mediaObj->Creator);
cp += sprintf(cp, CDS_DIDL_CREATOR2_ESCAPED);
}
if (mediaObj->Genre && printThese & CdsFilter_Genre)
{
/* TODO: support genre@extended */
cp += sprintf(cp, CDS_DIDL_GENRE1_ESCAPED);
cp += fnEscape(cp, mediaObj->Genre);
cp += sprintf(cp, CDS_DIDL_GENRE2_ESCAPED);
}
if (mediaObj->Album && printThese & CdsFilter_Album)
{
cp += sprintf(cp, CDS_DIDL_ALBUM1_ESCAPED);
cp += fnEscape(cp, mediaObj->Album);
cp += sprintf(cp, CDS_DIDL_ALBUM2_ESCAPED);