Funkwhale
/
Clementine-audio-player-Mac-Linux-Windows
mirror of https://github.com/clementine-player/Clementine
1
0
Fork 0
Code Issues Releases Wiki Activity
Clementine-audio-player-Mac.../spotifyblob/blob/spotifyclient.cpp

791 lines
26 KiB
C++
Raw Blame History

/* This file is part of Clementine.
Copyright 2011, David Sansome <me@davidsansome.com>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// Note: this file is licensed under the Apache License instead of GPL because
// it is used by the Spotify blob which links against libspotify and is not GPL
// compatible.
#include "spotifyclient.h"
#include "spotifykey.h"
#include "spotifymessagehandler.h"
#include "spotifymessages.pb.h"
#include "core/logging.h"
#include <QCoreApplication>
#include <QDir>
#include <QHostAddress>
#include <QTcpSocket>
#include <QTimer>
const int SpotifyClient::kSpotifyImageIDSize = 20;
SpotifyClient::SpotifyClient(QObject* parent)
: QObject(parent),
api_key_(QByteArray::fromBase64(kSpotifyApiKey)),
protocol_socket_(new QTcpSocket(this)),
media_socket_(NULL),
handler_(new SpotifyMessageHandler(protocol_socket_, this)),
session_(NULL),
events_timer_(new QTimer(this)),
media_length_msec_(-1) {
memset(&spotify_callbacks_, 0, sizeof(spotify_callbacks_));
memset(&spotify_config_, 0, sizeof(spotify_config_));
memset(&playlistcontainer_callbacks_, 0, sizeof(playlistcontainer_callbacks_));
memset(&get_playlists_callbacks_, 0, sizeof(get_playlists_callbacks_));
memset(&load_playlist_callbacks_, 0, sizeof(load_playlist_callbacks_));
spotify_callbacks_.logged_in = &LoggedInCallback;
spotify_callbacks_.notify_main_thread = &NotifyMainThreadCallback;
spotify_callbacks_.log_message = &LogMessageCallback;
spotify_callbacks_.metadata_updated = &MetadataUpdatedCallback;
spotify_callbacks_.music_delivery = &MusicDeliveryCallback;
spotify_callbacks_.end_of_track = &EndOfTrackCallback;
spotify_callbacks_.streaming_error = &StreamingErrorCallback;
spotify_callbacks_.offline_status_updated = &OfflineStatusUpdatedCallback;
playlistcontainer_callbacks_.container_loaded = &PlaylistContainerLoadedCallback;
playlistcontainer_callbacks_.playlist_added = &PlaylistAddedCallback;
playlistcontainer_callbacks_.playlist_moved = &PlaylistMovedCallback;
playlistcontainer_callbacks_.playlist_removed = &PlaylistRemovedCallback;
get_playlists_callbacks_.playlist_state_changed = &PlaylistStateChangedForGetPlaylists;
load_playlist_callbacks_.playlist_state_changed = &PlaylistStateChangedForLoadPlaylist;
spotify_config_.api_version = SPOTIFY_API_VERSION; // From libspotify/api.h
spotify_config_.cache_location = strdup(QDir::tempPath().toLocal8Bit().constData());
spotify_config_.settings_location = strdup(QDir::tempPath().toLocal8Bit().constData());
spotify_config_.application_key = api_key_.constData();
spotify_config_.application_key_size = api_key_.size();
spotify_config_.callbacks = &spotify_callbacks_;
spotify_config_.userdata = this;
spotify_config_.user_agent = "Clementine Player";
events_timer_->setSingleShot(true);
connect(events_timer_, SIGNAL(timeout()), SLOT(ProcessEvents()));
connect(handler_, SIGNAL(MessageArrived(protobuf::SpotifyMessage)),
SLOT(HandleMessage(protobuf::SpotifyMessage)));
connect(protocol_socket_, SIGNAL(disconnected()),
QCoreApplication::instance(), SLOT(quit()));
}
SpotifyClient::~SpotifyClient() {
if (session_) {
sp_session_release(session_);
}
free(const_cast<char*>(spotify_config_.cache_location));
free(const_cast<char*>(spotify_config_.settings_location));
free(const_cast<void*>(spotify_config_.application_key));
}
void SpotifyClient::Init(quint16 port) {
qLog(Debug) << "Connecting to port" << port;
protocol_socket_->connectToHost(QHostAddress::LocalHost, port);
}
void SpotifyClient::LoggedInCallback(sp_session* session, sp_error error) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(sp_session_userdata(session));
const bool success = error == SP_ERROR_OK;
if (!success) {
qLog(Warning) << "Failed to login" << sp_error_message(error);
}
me->SendLoginCompleted(success, sp_error_message(error));
if (success) {
sp_playlistcontainer_add_callbacks(
sp_session_playlistcontainer(session),
&me->playlistcontainer_callbacks_, me);
}
}
void SpotifyClient::NotifyMainThreadCallback(sp_session* session) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(sp_session_userdata(session));
QMetaObject::invokeMethod(me, "ProcessEvents", Qt::QueuedConnection);
}
void SpotifyClient::ProcessEvents() {
int next_timeout_ms;
sp_session_process_events(session_, &next_timeout_ms);
events_timer_->start(next_timeout_ms);
}
void SpotifyClient::LogMessageCallback(sp_session* session, const char* data) {
qLog(Debug) << "libspotify:" << QString::fromUtf8(data).trimmed();
}
void SpotifyClient::Search(const protobuf::SearchRequest& req) {
sp_search* search = sp_search_create(
session_, req.query().c_str(), 0, req.limit(), 0, 0, 0, 0,
&SearchCompleteCallback, this);
pending_searches_[search] = req;
}
void SpotifyClient::SearchCompleteCallback(sp_search* result, void* userdata) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(userdata);
if (!me->pending_searches_.contains(result)) {
qLog(Warning) << "SearchComplete called with unknown search";
return;
}
// Take the request out of the queue
protobuf::SearchRequest req = me->pending_searches_.take(result);
// Prepare the response
protobuf::SpotifyMessage message;
protobuf::SearchResponse* response = message.mutable_search_response();
*response->mutable_request() = req;
// Check for errors
sp_error error = sp_search_error(result);
if (error != SP_ERROR_OK) {
response->set_error(sp_error_message(error));
me->handler_->SendMessage(message);
sp_search_release(result);
return;
}
// Get the list of tracks from the search
const int count = sp_search_num_tracks(result);
for (int i=0 ; i<count ; ++i) {
sp_track* track = sp_search_track(result, i);
me->ConvertTrack(track, response->add_result());
}
// Add other data to the response
response->set_total_tracks(sp_search_total_tracks(result));
response->set_did_you_mean(sp_search_did_you_mean(result));
me->handler_->SendMessage(message);
sp_search_release(result);
}
void SpotifyClient::HandleMessage(const protobuf::SpotifyMessage& message) {
if (message.has_login_request()) {
const protobuf::LoginRequest& r = message.login_request();
Login(QStringFromStdString(r.username()), QStringFromStdString(r.password()));
} else if (message.has_load_playlist_request()) {
LoadPlaylist(message.load_playlist_request());
} else if (message.has_playback_request()) {
StartPlayback(message.playback_request());
} else if (message.has_search_request()) {
Search(message.search_request());
} else if (message.has_image_request()) {
LoadImage(QStringFromStdString(message.image_request().id()));
} else if (message.has_sync_playlist_request()) {
SyncPlaylist(message.sync_playlist_request());
}
}
void SpotifyClient::Login(const QString& username, const QString& password) {
sp_error error = sp_session_create(&spotify_config_, &session_);
if (error != SP_ERROR_OK) {
qLog(Warning) << "Failed to create session" << sp_error_message(error);
SendLoginCompleted(false, sp_error_message(error));
return;
}
sp_session_login(session_, username.toUtf8().constData(), password.toUtf8().constData());
}
void SpotifyClient::SendLoginCompleted(bool success, const QString& error) {
protobuf::SpotifyMessage message;
protobuf::LoginResponse* response = message.mutable_login_response();
response->set_success(success);
response->set_error(DataCommaSizeFromQString(error));
handler_->SendMessage(message);
}
void SpotifyClient::PlaylistContainerLoadedCallback(sp_playlistcontainer* pc, void* userdata) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(userdata);
// Install callbacks on all the playlists
const int count = sp_playlistcontainer_num_playlists(pc);
for (int i=0 ; i<count ; ++i) {
sp_playlist* playlist = sp_playlistcontainer_playlist(pc, i);
sp_playlist_add_callbacks(playlist, &me->get_playlists_callbacks_, me);
}
me->SendPlaylistList();
}
void SpotifyClient::PlaylistAddedCallback(sp_playlistcontainer* pc, sp_playlist* playlist, int position, void* userdata) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(userdata);
// Install callbacks on this playlist
sp_playlist_add_callbacks(playlist, &me->get_playlists_callbacks_, me);
me->SendPlaylistList();
}
void SpotifyClient::PlaylistMovedCallback(sp_playlistcontainer* pc, sp_playlist* playlist, int position, int new_position, void* userdata) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(userdata);
me->SendPlaylistList();
}
void SpotifyClient::PlaylistRemovedCallback(sp_playlistcontainer* pc, sp_playlist* playlist, int position, void* userdata) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(userdata);
// Remove callbacks from this playlist
sp_playlist_remove_callbacks(playlist, &me->get_playlists_callbacks_, me);
me->SendPlaylistList();
}
void SpotifyClient::SendPlaylistList() {
protobuf::SpotifyMessage message;
protobuf::Playlists* response = message.mutable_playlists_updated();
sp_playlistcontainer* container = sp_session_playlistcontainer(session_);
if (!container) {
qLog(Warning) << "sp_session_playlistcontainer returned NULL";
return;
}
const int count = sp_playlistcontainer_num_playlists(container);
for (int i=0 ; i<count ; ++i) {
const int type = sp_playlistcontainer_playlist_type(container, i);
sp_playlist* playlist = sp_playlistcontainer_playlist(container, i);
const bool is_loaded = sp_playlist_is_loaded(playlist);
qLog(Debug) << "Got playlist" << i << is_loaded << type << sp_playlist_name(playlist);
if (!is_loaded) {
qLog(Info) << "Playlist is not loaded yet, waiting...";
return;
}
if (type != SP_PLAYLIST_TYPE_PLAYLIST) {
// Just ignore folders for now
continue;
}
protobuf::Playlists::Playlist* msg = response->add_playlist();
msg->set_index(i);
msg->set_name(sp_playlist_name(playlist));
sp_playlist_offline_status offline_status =
sp_playlist_get_offline_status(session_, playlist);
const bool is_offline = offline_status == SP_PLAYLIST_OFFLINE_STATUS_YES;
msg->set_is_offline(is_offline);
if (offline_status == SP_PLAYLIST_OFFLINE_STATUS_DOWNLOADING) {
msg->set_download_progress(
sp_playlist_get_offline_download_completed(session_, playlist));
} else if (offline_status == SP_PLAYLIST_OFFLINE_STATUS_WAITING) {
msg->set_download_progress(0);
}
}
handler_->SendMessage(message);
}
sp_playlist* SpotifyClient::GetPlaylist(protobuf::PlaylistType type, int user_index) {
sp_playlist* playlist = NULL;
switch (type) {
case protobuf::Inbox:
playlist = sp_session_inbox_create(session_);
break;
case protobuf::Starred:
playlist = sp_session_starred_create(session_);
break;
case protobuf::UserPlaylist: {
sp_playlistcontainer* pc = sp_session_playlistcontainer(session_);
if (pc && user_index <= sp_playlistcontainer_num_playlists(pc)) {
if (sp_playlistcontainer_playlist_type(pc, user_index) == SP_PLAYLIST_TYPE_PLAYLIST) {
playlist = sp_playlistcontainer_playlist(pc, user_index);
sp_playlist_add_ref(playlist);
}
}
break;
}
}
return playlist;
}
void SpotifyClient::LoadPlaylist(const protobuf::LoadPlaylistRequest& req) {
PendingLoadPlaylist pending_load;
pending_load.request_ = req;
pending_load.playlist_ = GetPlaylist(req.type(), req.user_playlist_index());
// A null playlist might mean the user wasn't logged in, or an invalid
// playlist index was requested, so we'd better return an error straight away.
if (!pending_load.playlist_) {
qLog(Warning) << "Invalid playlist requested or not logged in";
protobuf::SpotifyMessage message;
protobuf::LoadPlaylistResponse* response = message.mutable_load_playlist_response();
*response->mutable_request() = req;
handler_->SendMessage(message);
return;
}
sp_playlist_add_callbacks(pending_load.playlist_, &load_playlist_callbacks_, this);
pending_load_playlists_ << pending_load;
PlaylistStateChangedForLoadPlaylist(pending_load.playlist_, this);
}
void SpotifyClient::SyncPlaylist(const protobuf::SyncPlaylistRequest& req) {
sp_playlist* playlist = GetPlaylist(req.request().type(), req.request().user_playlist_index());
// The playlist should already be loaded.
sp_playlist_set_offline_mode(session_, playlist, req.offline_sync());
}
void SpotifyClient::PlaylistStateChangedForLoadPlaylist(sp_playlist* pl, void* userdata) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(userdata);
// If the playlist isn't loaded yet we have to wait
if (!sp_playlist_is_loaded(pl)) {
qLog(Debug) << "Playlist isn't loaded yet, waiting";
return;
}
// Find this playlist's pending load object
int pending_load_index = -1;
PendingLoadPlaylist* pending_load = NULL;
for (int i=0 ; i<me->pending_load_playlists_.count() ; ++i) {
if (me->pending_load_playlists_[i].playlist_ == pl) {
pending_load_index = i;
pending_load = &me->pending_load_playlists_[i];
break;
}
}
if (!pending_load) {
qLog(Warning) << "Playlist not found in pending load list";
return;
}
// If the playlist was just loaded then get all its tracks and ref them
if (pending_load->tracks_.isEmpty()) {
const int count = sp_playlist_num_tracks(pl);
for (int i=0 ; i<count ; ++i) {
sp_track* track = sp_playlist_track(pl, i);
sp_track_add_ref(track);
pending_load->tracks_ << track;
}
}
// If any of the tracks aren't loaded yet we have to wait
foreach (sp_track* track, pending_load->tracks_) {
if (!sp_track_is_loaded(track)) {
qLog(Debug) << "One or more tracks aren't loaded yet, waiting";
return;
}
}
// Everything is loaded so send the response protobuf and unref everything.
protobuf::SpotifyMessage message;
protobuf::LoadPlaylistResponse* response = message.mutable_load_playlist_response();
*response->mutable_request() = pending_load->request_;
foreach (sp_track* track, pending_load->tracks_) {
me->ConvertTrack(track, response->add_track());
sp_track_release(track);
}
me->handler_->SendMessage(message);
// Unref the playlist and remove our callbacks
sp_playlist_remove_callbacks(pl, &me->load_playlist_callbacks_, me);
sp_playlist_release(pl);
// Remove the pending load object
me->pending_load_playlists_.removeAt(pending_load_index);
}
void SpotifyClient::PlaylistStateChangedForGetPlaylists(sp_playlist* pl, void* userdata) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(userdata);
me->SendPlaylistList();
}
void SpotifyClient::ConvertTrack(sp_track* track, protobuf::Track* pb) {
sp_album* album = sp_track_album(track);
pb->set_starred(sp_track_is_starred(session_, track));
pb->set_title(sp_track_name(track));
pb->set_album(sp_album_name(album));
pb->set_year(sp_album_year(album));
pb->set_duration_msec(sp_track_duration(track));
pb->set_popularity(sp_track_popularity(track));
pb->set_disc(sp_track_disc(track));
pb->set_track(sp_track_index(track));
// Album art
const QByteArray art_id(
reinterpret_cast<const char*>(sp_album_cover(sp_track_album(track))),
kSpotifyImageIDSize);
const QString art_id_b64 = QString::fromAscii(art_id.toBase64());
pb->set_album_art_id(DataCommaSizeFromQString(art_id_b64));
// Artists
for (int i=0 ; i<sp_track_num_artists(track) ; ++i) {
pb->add_artist(sp_artist_name(sp_track_artist(track, i)));
}
// URI - Blugh
char uri[256];
sp_link* link = sp_link_create_from_track(track, 0);
sp_link_as_string(link, uri, sizeof(uri));
sp_link_release(link);
pb->set_uri(uri);
}
void SpotifyClient::MetadataUpdatedCallback(sp_session* session) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(sp_session_userdata(session));
foreach (const PendingLoadPlaylist& load, me->pending_load_playlists_) {
PlaylistStateChangedForLoadPlaylist(load.playlist_, me);
}
foreach (const PendingPlaybackRequest& playback, me->pending_playback_requests_) {
me->TryPlaybackAgain(playback);
}
}
int SpotifyClient::MusicDeliveryCallback(
sp_session* session, const sp_audioformat* format,
const void* frames, int num_frames) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(sp_session_userdata(session));
if (!me->media_socket_) {
return 0;
}
// Write the WAVE header if it hasn't been written yet.
if (me->media_length_msec_ != -1) {
qLog(Debug) << "Sending WAVE header";
QDataStream s(me->media_socket_);
s.setByteOrder(QDataStream::LittleEndian);
const int bytes_per_sample = 2;
const int byte_rate = format->sample_rate * format->channels * bytes_per_sample;
const quint32 data_size = quint64(me->media_length_msec_) * byte_rate / 1000;
qLog(Debug) << "length" << me->media_length_msec_ << "byte_rate" << byte_rate
<< "data_size" << data_size;
// RIFF header
s.writeRawData("RIFF", 4);
s << quint32(32 + data_size);
s.writeRawData("WAVE", 4);
// WAVE fmt sub-chunk
s.writeRawData("fmt ", 4);
s << quint32(16); // Subchunk1Size
s << quint16(1); // AudioFormat
s << quint16(format->channels); // NumChannels
s << quint32(format->sample_rate); // SampleRate
s << quint32(byte_rate); // ByteRate
s << quint16(format->channels * bytes_per_sample); // BlockAlign
s << quint16(bytes_per_sample * 8); // BitsPerSample
// Data sub-chunk
s.writeRawData("data", 4);
s << quint32(data_size);
me->media_length_msec_ = -1;
}
// Write the audio data.
me->media_socket_->write(reinterpret_cast<const char*>(frames),
num_frames * format->channels * 2);
return num_frames;
}
void SpotifyClient::EndOfTrackCallback(sp_session* session) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(sp_session_userdata(session));
// Close the socket - it will get deleted when the other side has
// disconnected
me->media_socket_->close();
me->media_socket_ = NULL;
}
void SpotifyClient::StreamingErrorCallback(sp_session* session, sp_error error) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(sp_session_userdata(session));
// Close the socket - it will get deleted when the other side has
// disconnected
me->media_socket_->close();
me->media_socket_ = NULL;
// Send the error
me->SendPlaybackError(QString::fromUtf8(sp_error_message(error)));
}
void SpotifyClient::OfflineStatusUpdatedCallback(sp_session* session) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(sp_session_userdata(session));
sp_playlistcontainer* container = sp_session_playlistcontainer(session);
if (!container) {
qLog(Warning) << "sp_session_playlistcontainer returned NULL";
return;
}
const int count = sp_playlistcontainer_num_playlists(container);
for (int i=0 ; i<count ; ++i) {
const sp_playlist_type type = sp_playlistcontainer_playlist_type(container, i);
sp_playlist* playlist = sp_playlistcontainer_playlist(container, i);
if (type != SP_PLAYLIST_TYPE_PLAYLIST) {
// Just ignore folders for now
continue;
}
int download_progress = me->GetDownloadProgress(playlist);
if (download_progress != -1) {
me->SendDownloadProgress(protobuf::UserPlaylist, i, download_progress);
}
}
sp_playlist* inbox = sp_session_inbox_create(session);
int download_progress = me->GetDownloadProgress(inbox);
sp_playlist_release(inbox);
if (download_progress != -1) {
me->SendDownloadProgress(protobuf::Inbox, -1, download_progress);
}
sp_playlist* starred = sp_session_starred_create(session);
download_progress = me->GetDownloadProgress(starred);
sp_playlist_release(starred);
if (download_progress != -1) {
me->SendDownloadProgress(protobuf::Starred, -1, download_progress);
}
}
void SpotifyClient::SendDownloadProgress(
protobuf::PlaylistType type, int index, int download_progress) {
protobuf::SpotifyMessage message;
protobuf::SyncPlaylistProgress* progress = message.mutable_sync_playlist_progress();
progress->mutable_request()->set_type(type);
if (index != -1) {
progress->mutable_request()->set_user_playlist_index(index);
}
progress->set_sync_progress(download_progress);
handler_->SendMessage(message);
}
int SpotifyClient::GetDownloadProgress(sp_playlist* playlist) {
sp_playlist_offline_status status =
sp_playlist_get_offline_status(session_, playlist);
switch (status) {
case SP_PLAYLIST_OFFLINE_STATUS_NO:
return -1;
case SP_PLAYLIST_OFFLINE_STATUS_YES:
return 100;
case SP_PLAYLIST_OFFLINE_STATUS_DOWNLOADING:
return sp_playlist_get_offline_download_completed(session_, playlist);
case SP_PLAYLIST_OFFLINE_STATUS_WAITING:
return 0;
}
return -1;
}
void SpotifyClient::StartPlayback(const protobuf::PlaybackRequest& req) {
// Get a link object from the URI
sp_link* link = sp_link_create_from_string(req.track_uri().c_str());
if (!link) {
SendPlaybackError("Invalid Spotify URI");
return;
}
// Get the track from the link
sp_track* track = sp_link_as_track(link);
if (!track) {
SendPlaybackError("Spotify URI was not a track");
sp_link_release(link);
return;
}
PendingPlaybackRequest pending_playback;
pending_playback.request_ = req;
pending_playback.link_ = link;
pending_playback.track_ = track;
pending_playback_requests_ << pending_playback;
TryPlaybackAgain(pending_playback);
}
void SpotifyClient::TryPlaybackAgain(const PendingPlaybackRequest& req) {
// If the track was not loaded then we have to come back later
if (!sp_track_is_loaded(req.track_)) {
qLog(Debug) << "Playback track not loaded yet, will try again later";
return;
}
// Remove this from the pending list now
pending_playback_requests_.removeAll(req);
// Load the track
sp_error error = sp_session_player_load(session_, req.track_);
if (error != SP_ERROR_OK) {
SendPlaybackError("Spotify playback error: " +
QString::fromUtf8(sp_error_message(error)));
sp_link_release(req.link_);
return;
}
// Create the media socket
QTcpSocket* old_media_socket = media_socket_;
media_socket_ = new QTcpSocket(this);
media_socket_->connectToHost(QHostAddress::LocalHost, req.request_.media_port());
connect(media_socket_, SIGNAL(disconnected()), SLOT(MediaSocketDisconnected()));
if (old_media_socket) {
old_media_socket->close();
}
qLog(Info) << "Starting playback of uri" << req.request_.track_uri().c_str()
<< "to port" << req.request_.media_port();
// Set the track length - this will trigger MusicDeliveryCallback to send
// a WAVE header.
media_length_msec_ = sp_track_duration(req.track_);
// Start playback
sp_session_player_play(session_, true);
sp_link_release(req.link_);
}
void SpotifyClient::SendPlaybackError(const QString& error) {
protobuf::SpotifyMessage message;
protobuf::PlaybackError* msg = message.mutable_playback_error();
msg->set_error(DataCommaSizeFromQString(error));
handler_->SendMessage(message);
}
void SpotifyClient::MediaSocketDisconnected() {
QTcpSocket* socket = qobject_cast<QTcpSocket*>(sender());
if (!socket) {
return;
}
qLog(Info) << "Media socket disconnected";
socket->deleteLater();
if (socket == media_socket_) {
sp_session_player_unload(session_);
media_socket_ = NULL;
}
}
void SpotifyClient::LoadImage(const QString& id_b64) {
QByteArray id = QByteArray::fromBase64(id_b64.toAscii());
if (id.length() != kSpotifyImageIDSize) {
qLog(Warning) << "Invalid image ID (did not decode to"
<< kSpotifyImageIDSize << "bytes):" << id_b64;
// Send an error response straight away
protobuf::SpotifyMessage message;
protobuf::ImageResponse* msg = message.mutable_image_response();
msg->set_id(DataCommaSizeFromQString(id_b64));
handler_->SendMessage(message);
return;
}
PendingImageRequest pending_load;
pending_load.id_ = id;
pending_load.id_b64_ = id_b64;
pending_load.image_ = sp_image_create(session_,
reinterpret_cast<const byte*>(id.constData()));
pending_image_requests_ << pending_load;
if (!image_callbacks_registered_[pending_load.image_]) {
sp_image_add_load_callback(pending_load.image_, &ImageLoaded, this);
}
image_callbacks_registered_[pending_load.image_] ++;
TryImageAgain(pending_load.image_);
}
void SpotifyClient::TryImageAgain(sp_image* image) {
if (!sp_image_is_loaded(image)) {
qLog(Debug) << "Image not loaded, will try again later";
return;
}
// Find the pending request for this image
int index = -1;
PendingImageRequest* req = NULL;
for (int i=0 ; i<pending_image_requests_.count() ; ++i) {
if (pending_image_requests_[i].image_ == image) {
index = i;
req = &pending_image_requests_[i];
break;
}
}
if (index == -1) {
qLog(Warning) << "Image not found in pending load list";
return;
}
// Get the image data
size_t size = 0;
const void* data = sp_image_data(image, &size);
// Send the response
protobuf::SpotifyMessage message;
protobuf::ImageResponse* msg = message.mutable_image_response();
msg->set_id(DataCommaSizeFromQString(req->id_b64_));
if (data && size) {
msg->set_data(data, size);
}
handler_->SendMessage(message);
// Free stuff
image_callbacks_registered_[image] --;
if (!image_callbacks_registered_[image]) {
sp_image_remove_load_callback(image, &ImageLoaded, this);
image_callbacks_registered_.remove(image);
}
sp_image_release(image);
pending_image_requests_.removeAt(index);
}
void SpotifyClient::ImageLoaded(sp_image* image, void* userdata) {
SpotifyClient* me = reinterpret_cast<SpotifyClient*>(userdata);
me->TryImageAgain(image);
}
Reference in New Issue View Git Blame Copy Permalink