aboutsummaryrefslogtreecommitdiffstats
path: root/src/input/plugins/DespotifyInputPlugin.cxx
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/input/plugins/DespotifyInputPlugin.cxx227
1 files changed, 227 insertions, 0 deletions
diff --git a/src/input/plugins/DespotifyInputPlugin.cxx b/src/input/plugins/DespotifyInputPlugin.cxx
new file mode 100644
index 000000000..29d9186d0
--- /dev/null
+++ b/src/input/plugins/DespotifyInputPlugin.cxx
@@ -0,0 +1,227 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program 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 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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.
+ */
+
+#include "config.h"
+#include "DespotifyInputPlugin.hxx"
+#include "lib/despotify/DespotifyUtils.hxx"
+#include "../InputStream.hxx"
+#include "../InputPlugin.hxx"
+#include "tag/Tag.hxx"
+#include "util/StringUtil.hxx"
+#include "Log.hxx"
+
+extern "C" {
+#include <despotify.h>
+}
+
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include <stdio.h>
+
+class DespotifyInputStream final : public InputStream {
+ struct despotify_session *session;
+ struct ds_track *track;
+ Tag tag;
+ struct ds_pcm_data pcm;
+ size_t len_available;
+ bool eof;
+
+ DespotifyInputStream(const char *_uri,
+ Mutex &_mutex, Cond &_cond,
+ despotify_session *_session,
+ ds_track *_track)
+ :InputStream(_uri, _mutex, _cond),
+ session(_session), track(_track),
+ tag(mpd_despotify_tag_from_track(*track)),
+ len_available(0), eof(false) {
+
+ memset(&pcm, 0, sizeof(pcm));
+
+ /* Despotify outputs pcm data */
+ SetMimeType("audio/x-mpd-cdda-pcm");
+ SetReady();
+ }
+
+public:
+ ~DespotifyInputStream();
+
+ static InputStream *Open(const char *url, Mutex &mutex, Cond &cond,
+ Error &error);
+
+ void Callback(int sig);
+
+ /* virtual methods from InputStream */
+
+ bool IsEOF() override {
+ return eof;
+ }
+
+ Tag *ReadTag() override {
+ if (tag.IsEmpty())
+ return nullptr;
+
+ Tag *result = new Tag(std::move(tag));
+ tag.Clear();
+ return result;
+ }
+
+ size_t Read(void *ptr, size_t size, Error &error) override;
+
+private:
+ void FillBuffer();
+};
+
+inline void
+DespotifyInputStream::FillBuffer()
+{
+ /* Wait until there is data */
+ while (1) {
+ int rc = despotify_get_pcm(session, &pcm);
+
+ if (rc == 0 && pcm.len) {
+ len_available = pcm.len;
+ break;
+ }
+
+ if (eof == true)
+ break;
+
+ if (rc < 0) {
+ LogDebug(despotify_domain, "despotify_get_pcm error");
+ eof = true;
+ break;
+ }
+
+ /* Wait a while until next iteration */
+ usleep(50 * 1000);
+ }
+}
+
+inline void
+DespotifyInputStream::Callback(int sig)
+{
+ switch (sig) {
+ case DESPOTIFY_NEW_TRACK:
+ break;
+
+ case DESPOTIFY_TIME_TELL:
+ break;
+
+ case DESPOTIFY_TRACK_PLAY_ERROR:
+ LogWarning(despotify_domain, "Track play error");
+ eof = true;
+ len_available = 0;
+ break;
+
+ case DESPOTIFY_END_OF_PLAYLIST:
+ eof = true;
+ LogDebug(despotify_domain, "End of playlist");
+ break;
+ }
+}
+
+static void callback(gcc_unused struct despotify_session* ds,
+ int sig, gcc_unused void* data, void* callback_data)
+{
+ DespotifyInputStream *ctx = (DespotifyInputStream *)callback_data;
+
+ ctx->Callback(sig);
+}
+
+DespotifyInputStream::~DespotifyInputStream()
+{
+ mpd_despotify_unregister_callback(callback);
+ despotify_free_track(track);
+}
+
+inline InputStream *
+DespotifyInputStream::Open(const char *url,
+ Mutex &mutex, Cond &cond,
+ gcc_unused Error &error)
+{
+ if (!StringStartsWith(url, "spt://"))
+ return nullptr;
+
+ despotify_session *session = mpd_despotify_get_session();
+ if (session == nullptr)
+ return nullptr;
+
+ ds_link *ds_link = despotify_link_from_uri(url + 6);
+ if (!ds_link) {
+ FormatDebug(despotify_domain, "Can't find %s", url);
+ return nullptr;
+ }
+ if (ds_link->type != LINK_TYPE_TRACK) {
+ despotify_free_link(ds_link);
+ return nullptr;
+ }
+
+ ds_track *track = despotify_link_get_track(session, ds_link);
+ despotify_free_link(ds_link);
+ if (!track)
+ return nullptr;
+
+ DespotifyInputStream *ctx =
+ new DespotifyInputStream(url, mutex, cond,
+ session, track);
+
+ if (!mpd_despotify_register_callback(callback, ctx)) {
+ delete ctx;
+ return nullptr;
+ }
+
+ if (despotify_play(ctx->session, ctx->track, false) == false) {
+ mpd_despotify_unregister_callback(callback);
+ delete ctx;
+ return nullptr;
+ }
+
+ return ctx;
+}
+
+static InputStream *
+input_despotify_open(const char *url, Mutex &mutex, Cond &cond, Error &error)
+{
+ return DespotifyInputStream::Open(url, mutex, cond, error);
+}
+
+size_t
+DespotifyInputStream::Read(void *ptr, size_t read_size,
+ gcc_unused Error &error)
+{
+ if (len_available == 0)
+ FillBuffer();
+
+ size_t to_cpy = std::min(read_size, len_available);
+ memcpy(ptr, pcm.buf, to_cpy);
+ len_available -= to_cpy;
+
+ offset += to_cpy;
+
+ return to_cpy;
+}
+
+const InputPlugin input_plugin_despotify = {
+ "despotify",
+ nullptr,
+ nullptr,
+ input_despotify_open,
+};