PDF::PDF(InputStream *pSource)
{
char str[40];
int i, j, n, nOffset;
bool bFound;
Trailer *pTrailer;
const Object *pObj;
m_pSource = new DataInputStream(pSource);
*str = m_pSource->Read();
m_pSource->ReadStr(str + 1, sizeof(str) - 1);
if (strncmp(str, "%PDF-", 5) != 0)
{
m_pVersion[0] = '\0';
delete m_pSource;
m_pSource = NULL;
return;
}
strcpy(m_pVersion, (const char *)str + 5);
n = strlen("startxref");
bFound = false;
m_pSource->Seek(-(int)sizeof(str), SEEK_END);
for (i = 30; i > 0; --i)
{
m_pSource->Read(str, sizeof(str));
for (j = 0; j < sizeof(str) - n; ++j)
if (strncmp(str + j, "startxref", n) == 0)
{
bFound = true;
m_pSource->Seek(j - sizeof(str), SEEK_CUR);
m_pSource->ReadStr(str, sizeof(str)); // startxref
nOffset = m_pSource->ReadInt(); // offset of xref
break;
}
if (bFound)
break;
m_pSource->Seek(n - sizeof(str) * 2, SEEK_CUR);
}
if (!bFound) // startxref is not found
{
m_pVersion[0] = '\0';
delete m_pSource;
m_pSource = NULL;
return;
}
m_pXref = new Xref();
m_pReader = new ObjReader(m_pSource, m_pXref);
m_pTrailer = NULL;
do
{
pTrailer = new Trailer;
m_pSource->Seek(nOffset, SEEK_SET);
m_pSource->ReadStr(str, sizeof(str));
if (strcmp(str, "xref") == 0)
{
m_pXref->Read(m_pSource);
m_pSource->ReadStr(str, sizeof(str)); //trailer
pTrailer->pStream = NULL;
pTrailer->pDict = (const Dictionary *)m_pReader->ReadObj();
}
else
{
m_pSource->ReadInt();
m_pSource->ReadStr(str, sizeof(str)); //obj
pTrailer->pStream = (const Stream *)m_pReader->ReadObj(); //stream
pTrailer->pDict = pTrailer->pStream->GetDictionary();
pSource = CreateInputStream(pTrailer->pStream);
m_pXref->Read(pSource);
delete pSource;
}
pTrailer->pPrev = NULL;
if (m_pTrailer == NULL)
m_pTrailer = pTrailer;
else
m_pTail->pPrev = pTrailer;
m_pTail = pTrailer;
pObj = pTrailer->pDict->GetValue("Prev");
if (pObj != NULL)
nOffset = ((const Numeric *)pObj)->GetValue();
} while (pObj != NULL);
m_nPageNum = 0;
for (pTrailer = m_pTrailer; pTrailer != NULL; pTrailer = pTrailer->pPrev)
{
pObj = GetObject(pTrailer->pDict->GetValue("Root"));
if (pObj != NULL)
{
m_pPages = (const Dictionary *)GetObject(((Dictionary *)pObj)->GetValue("Pages"));
m_nPageNum = ((const Numeric *)GetObject(m_pPages->GetValue("Count")))->GetValue();
break;
}
}
}
CDVDInputStream* CDVDFactoryInputStream::CreateInputStream(IVideoPlayer* pPlayer, const CFileItem &fileitem, bool scanforextaudio)
{
std::string file = fileitem.GetPath();
if (scanforextaudio)
{
// find any available external audio tracks
std::vector<std::string> filenames;
filenames.push_back(file);
CUtil::ScanForExternalAudio(file, filenames);
CUtil::ScanForExternalDemuxSub(file, filenames);
if (filenames.size() >= 2)
{
return CreateInputStream(pPlayer, fileitem, filenames);
}
}
ADDON::VECADDONS addons;
ADDON::CBinaryAddonCache &addonCache = CServiceBroker::GetBinaryAddonCache();
addonCache.GetAddons(addons, ADDON::ADDON_INPUTSTREAM);
for (size_t i=0; i<addons.size(); ++i)
{
std::shared_ptr<ADDON::CInputStream> input(std::static_pointer_cast<ADDON::CInputStream>(addons[i]));
if (input->Supports(fileitem))
{
std::shared_ptr<ADDON::CInputStream> addon = input;
if (!input->UseParent())
addon = std::shared_ptr<ADDON::CInputStream>(new ADDON::CInputStream(*input));
ADDON_STATUS status = addon->Create();
if (status == ADDON_STATUS_OK)
{
unsigned int videoWidth, videoHeight;
pPlayer->GetVideoResolution(videoWidth, videoHeight);
addon->SetVideoResolution(videoWidth, videoHeight);
return new CInputStreamAddon(fileitem, addon);
}
}
}
if (fileitem.IsDiscImage())
{
#ifdef HAVE_LIBBLURAY
CURL url("udf://");
url.SetHostName(file);
url.SetFileName("BDMV/index.bdmv");
if(XFILE::CFile::Exists(url.Get()))
return new CDVDInputStreamBluray(pPlayer, fileitem);
#endif
return new CDVDInputStreamNavigator(pPlayer, fileitem);
}
#ifdef HAS_DVD_DRIVE
if(file.compare(g_mediaManager.TranslateDevicePath("")) == 0)
{
#ifdef HAVE_LIBBLURAY
if(XFILE::CFile::Exists(URIUtils::AddFileToFolder(file, "BDMV/index.bdmv")))
return new CDVDInputStreamBluray(pPlayer, fileitem);
#endif
return new CDVDInputStreamNavigator(pPlayer, fileitem);
}
#endif
if (fileitem.IsDVDFile(false, true))
return (new CDVDInputStreamNavigator(pPlayer, fileitem));
else if(file.substr(0, 6) == "pvr://")
return new CDVDInputStreamPVRManager(pPlayer, fileitem);
#ifdef HAVE_LIBBLURAY
else if (fileitem.IsType(".bdmv") || fileitem.IsType(".mpls") || file.substr(0, 7) == "bluray:")
return new CDVDInputStreamBluray(pPlayer, fileitem);
#endif
else if(file.substr(0, 6) == "rtp://"
|| file.substr(0, 7) == "rtsp://"
|| file.substr(0, 6) == "sdp://"
|| file.substr(0, 6) == "udp://"
|| file.substr(0, 6) == "tcp://"
|| file.substr(0, 6) == "mms://"
|| file.substr(0, 7) == "mmst://"
|| file.substr(0, 7) == "mmsh://")
return new CDVDInputStreamFFmpeg(fileitem);
#ifdef ENABLE_DVDINPUTSTREAM_STACK
else if(file.substr(0, 8) == "stack://")
return new CDVDInputStreamStack(fileitem);
#endif
else if (fileitem.IsInternetStream())
{
if (fileitem.IsType(".m3u8"))
return new CDVDInputStreamFFmpeg(fileitem);
if (fileitem.GetMimeType() == "application/vnd.apple.mpegurl")
return new CDVDInputStreamFFmpeg(fileitem);
}
// our file interface handles all these types of streams
return (new CDVDInputStreamFile(fileitem));
}
CDVDInputStream* CDVDFactoryInputStream::CreateInputStream(IVideoPlayer* pPlayer, CFileItem fileitem, bool scanforextaudio)
{
std::string file = fileitem.GetPath();
if (scanforextaudio)
{
// find any available external audio tracks
std::vector<std::string> filenames;
filenames.push_back(file);
CUtil::ScanForExternalAudio(file, filenames);
if (filenames.size() >= 2)
{
return CreateInputStream(pPlayer, fileitem, filenames);
}
}
ADDON::VECADDONS addons;
g_application.m_binaryAddonCache.GetAddons(addons, ADDON::ADDON_INPUTSTREAM);
for (size_t i=0; i<addons.size(); ++i)
{
std::shared_ptr<ADDON::CInputStream> input(std::static_pointer_cast<ADDON::CInputStream>(addons[i]));
ADDON::CInputStream* clone = new ADDON::CInputStream(*input);
ADDON_STATUS status = clone->Supports(fileitem) ? clone->Create() : ADDON_STATUS_PERMANENT_FAILURE;
if (status == ADDON_STATUS_OK)
{
if (clone->Supports(fileitem))
{
return new CInputStreamAddon(fileitem, clone);
}
}
delete clone;
}
if (fileitem.IsDiscImage())
{
#ifdef HAVE_LIBBLURAY
CURL url("udf://");
url.SetHostName(file);
url.SetFileName("BDMV/index.bdmv");
if(XFILE::CFile::Exists(url.Get()))
return new CDVDInputStreamBluray(pPlayer, fileitem);
#endif
return new CDVDInputStreamNavigator(pPlayer, fileitem);
}
#ifdef HAS_DVD_DRIVE
if(file.compare(g_mediaManager.TranslateDevicePath("")) == 0)
{
#ifdef HAVE_LIBBLURAY
if(XFILE::CFile::Exists(URIUtils::AddFileToFolder(file, "BDMV/index.bdmv")))
return new CDVDInputStreamBluray(pPlayer, fileitem);
#endif
return new CDVDInputStreamNavigator(pPlayer, fileitem);
}
#endif
if (fileitem.IsDVDFile(false, true))
return (new CDVDInputStreamNavigator(pPlayer, fileitem));
else if(file.substr(0, 6) == "pvr://")
return new CDVDInputStreamPVRManager(pPlayer, fileitem);
#ifdef HAVE_LIBBLURAY
else if (fileitem.IsType(".bdmv") || fileitem.IsType(".mpls") || file.substr(0, 7) == "bluray:")
return new CDVDInputStreamBluray(pPlayer, fileitem);
#endif
else if(file.substr(0, 6) == "rtp://"
|| file.substr(0, 7) == "rtsp://"
|| file.substr(0, 6) == "sdp://"
|| file.substr(0, 6) == "udp://"
|| file.substr(0, 6) == "tcp://"
|| file.substr(0, 6) == "mms://"
|| file.substr(0, 7) == "mmst://"
|| file.substr(0, 7) == "mmsh://")
return new CDVDInputStreamFFmpeg(fileitem);
#ifdef ENABLE_DVDINPUTSTREAM_STACK
else if(file.substr(0, 8) == "stack://")
return new CDVDInputStreamStack(fileitem);
#endif
#ifdef HAS_LIBRTMP
else if(file.substr(0, 7) == "rtmp://"
|| file.substr(0, 8) == "rtmpt://"
|| file.substr(0, 8) == "rtmpe://"
|| file.substr(0, 9) == "rtmpte://"
|| file.substr(0, 8) == "rtmps://")
return new CDVDInputStreamRTMP(fileitem);
#endif
else if (fileitem.IsInternetStream())
{
if (fileitem.IsType(".m3u8"))
return new CDVDInputStreamFFmpeg(fileitem);
if (fileitem.ContentLookup())
{
// request header
fileitem.SetMimeType("");
fileitem.FillInMimeType();
}
if (fileitem.GetMimeType() == "application/vnd.apple.mpegurl")
return new CDVDInputStreamFFmpeg(fileitem);
}
// our file interface handles all these types of streams
return (new CDVDInputStreamFile(fileitem));
}
