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Quelle utils.cpp
Sprache: C
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/*****************************************************************************
* Clients.cpp
*****************************************************************************
* Copyright © 2024 VLC authors and VideoLAN
*
* Authors: Alaric Senat <alaric@videolabs.io>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <algorithm>
#include <cassert>
#include <sstream>
#include <stream_out/dlna/dlna.hpp>
#include <string>
#include <upnp/upnp.h>
#if UPNP_VERSION >= 11400
#include <upnp/UpnpExtraHeaders.h>
#else
#include <upnp/ExtraHeaders.h>
#endif
#if defined(_WIN32)
#include <winsock2.h>
#elif defined(HAVE_SYS_SOCKET_H)
#include <sys/socket.h>
#endif
#include <vlc_common.h>
#include <vlc_configuration.h>
#include "utils.hpp"
namespace utils
{
MimeType get_mimetype(vlc_ml_media_type_t type, const std::string &file_extension) noexcept
{
const char *mime_end = file_extension.c_str();
// special case for the transcode muxer to be widely accepted by a majority of players.
if (file_extension == "ts")
mime_end = "mpeg";
else if (file_extension == "mp3")
mime_end = "mpeg";
switch (type)
{
case VLC_ML_MEDIA_TYPE_AUDIO:
return { "audio", mime_end};
case VLC_ML_MEDIA_TYPE_UNKNOWN: // Intended pass through
case VLC_ML_MEDIA_TYPE_VIDEO:
return { "video", mime_end};
default:
vlc_assert_unreachable();
}
}
std::string file_extension( const std::string &file)
{
auto pos = file.find_last_of( '.');
if (pos == std::string::npos)
return {};
return file.substr(pos + 1);
}
std::string get_server_url()
{
// TODO support ipv6
const std::string addr = UpnpGetServerIpAddress();
const std::string port = std::to_string(UpnpGetServerPort());
return "http://" + addr + ':' + port + '/';
}
std::string get_root_dir()
{
std::stringstream ret;
char *path = config_GetSysPath(VLC_PKG_DATA_DIR, NULL);
assert(path);
ret << path << "/upnp_server/";
free(path);
return ret.str();
}
std::string addr_to_string( const sockaddr_storage *addr)
{
const void *ip;
if (addr->ss_family == AF_INET6)
{
ip = & reinterpret_cast< const struct sockaddr_in6 *>(addr)->sin6_ad dr;
}
else
{
ip = &reinterpret_cast<const struct sockaddr_in *>(addr)->sin_addr;
}
char buff[INET6_ADDRSTRLEN];
inet_ntop(addr->ss_family, ip, buff, sizeof(buff));
return buff;
}
std::vector<MediaTrackRef> get_media_tracks(const vlc_ml_media_t &media, vlc_ml_track_type_t type)
{
std::vector<MediaTrackRef> ret;
if (media.p_tracks == nullptr)
return ret;
for (unsigned i = 0; i < media.p_tracks->i_nb_items; ++i)
{
const auto &track = media.p_tracks->p_items[i];
if (track.i_type == type)
ret.emplace_back(track);
}
return ret;
}
std::vector<MediaFileRef> get_media_files(const vlc_ml_media_t &media, vlc_ml_file_type_t type)
{
std::vector<MediaFileRef> ret;
if (media.p_files == nullptr)
return ret;
for (unsigned i = 0; i < media.p_files->i_nb_items; ++i)
{
const auto &file = media.p_files->p_items[i];
if (file.i_type == type)
ret.emplace_back(file);
}
return ret;
}
std::string album_thumbnail_url(const vlc_ml_album_t &album)
{
const auto &thumbnail = album.thumbnails[VLC_ML_THUMBNAIL_SMALL];
if (thumbnail.i_status != VLC_ML_THUMBNAIL_STATUS_AVAILABLE)
return "";
const auto thumbnail_extension = file_extension(std::string(thumbnail.psz_mrl));
return get_server_url() + "thumbnail/small/album/" + std::to_string(album.i_id) + "." +
thumbnail_extension;
}
std::string thumbnail_url(const vlc_ml_media_t &media, vlc_ml_thumbnail_size_t size)
{
std::stringstream ss;
const std::string s_size = size == VLC_ML_THUMBNAIL_SMALL ? "small" : "banner";
const auto &thumbnail = media.thumbnails[size];
const auto thumbnail_extension = file_extension(std::string(thumbnail.psz_mrl));
ss << get_server_url() << "thumbnail/" << s_size << "/media/" << media.i_id << '.'
<< thumbnail_extension;
return ss.str();
}
namespace http
{
static UpnpExtraHeaders *get_hdr(UpnpListHead *list, const std::string name)
{
for (auto *it = UpnpListBegin(list); it != UpnpListEnd(list); it = UpnpListNext(list, it))
{
UpnpExtraHeaders *hd = reinterpret_cast<UpnpExtraHeaders *>(it);
std::string hdr_name = UpnpExtraHeaders_get_name_cstr(hd);
// std::cerr << hdr_name << ": " << UpnpExtraHeaders_get_value_cstr( hd ) << "\n";
std::transform(std::begin(hdr_name), std::end(hdr_name), std::begin(hdr_name), ::tolower);
if (hdr_name == name)
{
return hd;
}
}
return nullptr;
}
void add_response_hdr(UpnpListHead *list, const std::pair<std::string, std::string> resp)
{
auto *hdr = get_hdr(list, resp.first);
const auto resp_str = resp.first + ": " + resp.second;
if (!hdr)
{
hdr = UpnpExtraHeaders_new();
}
UpnpExtraHeaders_set_resp(hdr, resp_str.c_str());
UpnpListInsert(
list, UpnpListEnd(list), const_cast<UpnpListHead *>(UpnpExtraHeaders_get_node(hdr)));
}
std::string get_dlna_extra_protocol_info(const MimeType &mime)
{
// TODO We should change that to a better profile selection using profiles in dlna.hpp
// as soon as more info on media tracks are available in the medialibrary
dlna_profile_t profile;
if (mime.media_type == "audio")
profile = default_audio_profile;
else if (mime.media_type == "image")
profile = default_image_profile;
else
profile = default_video_profile;
profile.mime = mime.combine();
const protocol_info_t info{
DLNA_TRANSPORT_PROTOCOL_HTTP,
DLNA_ORG_CONVERSION_NONE,
profile,
};
const dlna_org_flags_t flags = DLNA_ORG_FLAG_STREAMING_TRANSFER_MODE |
DLNA_ORG_FLAG_BACKGROUND_TRANSFERT_MODE |
DLNA_ORG_FLAG_CONNECTION_STALL | DLNA_ORG_FLAG_DLNA_V15;
const dlna_org_operation_t op = DLNA_ORG_OPERATION_RANGE;
return dlna_write_protocol_info(info, flags, op);
}
} // namespace http
} // namespace utils
¤ Dauer der Verarbeitung: 0.0 Sekunden
(vorverarbeitet am 2026-11-04)
¤
*© Formatika GbR, Deutschland
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2026-11-01
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