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- xbmc/xbmc/playlists/PlayListM3U.cpp
- @Rechi Rechi [modernize] use-emplace
- 8b9ef63 on 16 Sep 2019
- 275 lines (236 sloc) 8.87 KB
- /*
- * Copyright (C) 2005-2018 Team Kodi
- * This file is part of Kodi - https://kodi.tv
- *
- * SPDX-License-Identifier: GPL-2.0-or-later
- * See LICENSES/README.md for more information.
- */
- #include "PlayListM3U.h"
- #include "URL.h"
- #include "Util.h"
- #include "filesystem/File.h"
- #include "music/tags/MusicInfoTag.h"
- #include "utils/CharsetConverter.h"
- #include "utils/URIUtils.h"
- #include "utils/log.h"
- #include "video/VideoInfoTag.h"
- #include <inttypes.h>
- using namespace PLAYLIST;
- using namespace XFILE;
- const char* CPlayListM3U::StartMarker = "#EXTCPlayListM3U::M3U";
- const char* CPlayListM3U::InfoMarker = "#EXTINF";
- const char* CPlayListM3U::ArtistMarker = "#EXTART";
- const char* CPlayListM3U::AlbumMarker = "#EXTALB";
- const char* CPlayListM3U::PropertyMarker = "#KODIPROP";
- const char* CPlayListM3U::VLCOptMarker = "#EXTVLCOPT";
- const char* CPlayListM3U::StreamMarker = "#EXT-X-STREAM-INF";
- const char* CPlayListM3U::BandwidthMarker = "BANDWIDTH";
- const char* CPlayListM3U::OffsetMarker = "#EXT-KX-OFFSET";
- // example m3u file:
- // #EXTM3U
- // #EXTART:Demo Artist
- // #EXTALB:Demo Album
- // #KODIPROP:name=value
- // #EXTINF:5,demo
- // E:\Program Files\Winamp3\demo.mp3
- // example m3u8 containing streams of different bitrates
- // #EXTM3U
- // #EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=1600000
- // playlist_1600.m3u8
- // #EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=3000000
- // playlist_3000.m3u8
- // #EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=800000
- // playlist_800.m3u8
- CPlayListM3U::CPlayListM3U(void) = default;
- CPlayListM3U::~CPlayListM3U(void) = default;
- bool CPlayListM3U::Load(const std::string& strFileName)
- {
- char szLine[4096];
- std::string strLine;
- std::string strInfo;
- std::vector<std::pair<std::string, std::string> > properties;
- int lDuration = 0;
- int iStartOffset = 0;
- int iEndOffset = 0;
- Clear();
- m_strPlayListName = URIUtils::GetFileName(strFileName);
- URIUtils::GetParentPath(strFileName, m_strBasePath);
- CFile file;
- if (!file.Open(strFileName) )
- {
- file.Close();
- return false;
- }
- while (file.ReadString(szLine, 4095))
- {
- strLine = szLine;
- StringUtils::Trim(strLine);
- if (StringUtils::StartsWith(strLine, InfoMarker))
- {
- // start of info
- size_t iColon = strLine.find(":");
- size_t iComma = strLine.find(",");
- if (iColon != std::string::npos &&
- iComma != std::string::npos &&
- iComma > iColon)
- {
- // Read the info and duration
- iColon++;
- std::string strLength = strLine.substr(iColon, iComma - iColon);
- lDuration = atoi(strLength.c_str());
- iComma++;
- strInfo = strLine.substr(iComma);
- g_charsetConverter.unknownToUTF8(strInfo);
- }
- }
- else if (StringUtils::StartsWith(strLine, OffsetMarker))
- {
- size_t iColon = strLine.find(":");
- size_t iComma = strLine.find(",");
- if (iColon != std::string::npos &&
- iComma != std::string::npos &&
- iComma > iColon)
- {
- // Read the start and end offset
- iColon++;
- iStartOffset = atoi(strLine.substr(iColon, iComma - iColon).c_str());
- iComma++;
- iEndOffset = atoi(strLine.substr(iComma).c_str());
- }
- }
- else if (StringUtils::StartsWith(strLine, PropertyMarker)
- || StringUtils::StartsWith(strLine, VLCOptMarker))
- {
- size_t iColon = strLine.find(":");
- size_t iEqualSign = strLine.find("=");
- if (iColon != std::string::npos &&
- iEqualSign != std::string::npos &&
- iEqualSign > iColon)
- {
- std::string strFirst, strSecond;
- properties.emplace_back(
- StringUtils::Trim((strFirst = strLine.substr(iColon + 1, iEqualSign - iColon - 1))),
- StringUtils::Trim((strSecond = strLine.substr(iEqualSign + 1))));
- }
- }
- else if (strLine != StartMarker &&
- !StringUtils::StartsWith(strLine, ArtistMarker) &&
- !StringUtils::StartsWith(strLine, AlbumMarker))
- {
- std::string strFileName = strLine;
- if (!strFileName.empty() && strFileName[0] == '#')
- continue; // assume a comment or something else we don't support
- // Skip self - do not load playlist recursively
- // We compare case-less in case user has input incorrect case of the current playlist
- if (StringUtils::EqualsNoCase(URIUtils::GetFileName(strFileName), m_strPlayListName))
- continue;
- if (strFileName.length() > 0)
- {
- g_charsetConverter.unknownToUTF8(strFileName);
- // If no info was read from from the extended tag information, use the file name
- if (strInfo.length() == 0)
- {
- strInfo = URIUtils::GetFileName(strFileName);
- }
- // should substitution occur before or after charset conversion??
- strFileName = URIUtils::SubstitutePath(strFileName);
- // Get the full path file name and add it to the the play list
- CUtil::GetQualifiedFilename(m_strBasePath, strFileName);
- CFileItemPtr newItem(new CFileItem(strInfo));
- newItem->SetPath(strFileName);
- if (iStartOffset != 0 || iEndOffset != 0)
- {
- newItem->m_lStartOffset = iStartOffset;
- newItem->m_lStartPartNumber = 1;
- newItem->SetProperty("item_start", iStartOffset);
- newItem->m_lEndOffset = iEndOffset;
- // Prevent load message from file and override offset set here
- newItem->GetMusicInfoTag()->SetLoaded();
- newItem->GetMusicInfoTag()->SetTitle(strInfo);
- if (iEndOffset)
- lDuration = static_cast<int>(CUtil::ConvertMilliSecsToSecsIntRounded(iEndOffset - iStartOffset));
- }
- if (newItem->IsVideo() && !newItem->HasVideoInfoTag()) // File is a video and needs a VideoInfoTag
- newItem->GetVideoInfoTag()->Reset(); // Force VideoInfoTag creation
- if (lDuration && newItem->IsAudio())
- newItem->GetMusicInfoTag()->SetDuration(lDuration);
- for (auto &prop : properties)
- {
- newItem->SetProperty(prop.first, prop.second);
- }
- newItem->SetMimeType(newItem->GetProperty("mimetype").asString());
- if (!newItem->GetMimeType().empty())
- newItem->SetContentLookup(false);
- Add(newItem);
- // Reset the values just in case there part of the file have the extended marker
- // and part don't
- strInfo = "";
- lDuration = 0;
- iStartOffset = 0;
- iEndOffset = 0;
- properties.clear();
- }
- }
- }
- file.Close();
- return true;
- }
- void CPlayListM3U::Save(const std::string& strFileName) const
- {
- if (!m_vecItems.size())
- return;
- std::string strPlaylist = CUtil::MakeLegalPath(strFileName);
- CFile file;
- if (!file.OpenForWrite(strPlaylist,true))
- {
- CLog::Log(LOGERROR, "Could not save M3U playlist: [%s]", strPlaylist.c_str());
- return;
- }
- std::string strLine = StringUtils::Format("%s\n",StartMarker);
- if (file.Write(strLine.c_str(), strLine.size()) != static_cast<ssize_t>(strLine.size()))
- return; // error
- for (int i = 0; i < (int)m_vecItems.size(); ++i)
- {
- CFileItemPtr item = m_vecItems[i];
- std::string strDescription=item->GetLabel();
- g_charsetConverter.utf8ToStringCharset(strDescription);
- strLine = StringUtils::Format( "%s:%i,%s\n", InfoMarker, item->GetMusicInfoTag()->GetDuration() / 1000, strDescription.c_str() );
- if (file.Write(strLine.c_str(), strLine.size()) != static_cast<ssize_t>(strLine.size()))
- return; // error
- if (item->m_lStartOffset != 0 || item->m_lEndOffset != 0)
- {
- strLine = StringUtils::Format("%s:%" PRIi64 ",%" PRIi64 "\n", OffsetMarker, item->m_lStartOffset, item->m_lEndOffset);
- file.Write(strLine.c_str(),strLine.size());
- }
- std::string strFileName = ResolveURL(item);
- g_charsetConverter.utf8ToStringCharset(strFileName);
- strLine = StringUtils::Format("%s\n",strFileName.c_str());
- if (file.Write(strLine.c_str(), strLine.size()) != static_cast<ssize_t>(strLine.size()))
- return; // error
- }
- file.Close();
- }
- std::map< std::string, std::string > CPlayListM3U::ParseStreamLine(const std::string &streamLine)
- {
- std::map< std::string, std::string > params;
- // ensure the line has something beyond the stream marker and ':'
- if (streamLine.size() < strlen(StreamMarker) + 2)
- return params;
- // get the actual params following the :
- std::string strParams(streamLine.substr(strlen(StreamMarker) + 1));
- // separate the parameters
- std::vector<std::string> vecParams = StringUtils::Split(strParams, ",");
- for (std::vector<std::string>::iterator i = vecParams.begin(); i != vecParams.end(); ++i)
- {
- // split the param, ensure there was an =
- StringUtils::Trim(*i);
- std::vector<std::string> vecTuple = StringUtils::Split(*i, "=");
- if (vecTuple.size() < 2)
- continue;
- // remove white space from name and value and store it in the dictionary
- StringUtils::Trim(vecTuple[0]);
- StringUtils::Trim(vecTuple[1]);
- params[vecTuple[0]] = vecTuple[1];
- }
- return params;
- }
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