+#ifdef HAVE_GSTREAMER
+
+ /* note: this requires gstreamer 0.10.x and a big list of plugins. */
+ /* it's currently hardcoded to use a big-endian alsasink as sink. */
#include <lib/base/eerror.h>
#include <lib/base/object.h>
#include <lib/base/ebase.h>
#include <lib/service/service.h>
#include <lib/base/init_num.h>
#include <lib/base/init.h>
+#include <gst/gst.h>
// eServiceFactoryMP3
RESULT eStaticServiceMP3Info::getName(const eServiceReference &ref, std::string &name)
{
- name = "MP3 file: " + ref.path;
+ size_t last = ref.path.rfind('/');
+ if (last != std::string::npos)
+ name = ref.path.substr(last+1);
+ else
+ name = ref.path;
return 0;
}
// eServiceMP3
-void eServiceMP3::test_end()
-{
- eDebug("end of mp3!");
- stop();
-}
-
-eServiceMP3::eServiceMP3(const char *filename): filename(filename), test(eApp)
+eServiceMP3::eServiceMP3(const char *filename): m_filename(filename), m_pump(eApp, 1)
{
+ m_stream_tags = 0;
+ CONNECT(m_pump.recv_msg, eServiceMP3::gstPoll);
+ GstElement *source, *decoder, *conv, *flt, *sink;
m_state = stIdle;
eDebug("SERVICEMP3 construct!");
+
+ m_gst_pipeline = gst_pipeline_new ("audio-player");
+ if (!m_gst_pipeline)
+ eWarning("failed to create pipeline");
+
+ source = gst_element_factory_make ("filesrc", "file-source");
+ if (!source)
+ eWarning("failed to create filesrc");
+
+ decoder = gst_element_factory_make ("decodebin", "decoder");
+ if (!decoder)
+ eWarning("failed to create decodebin decoder");
+
+ conv = gst_element_factory_make ("audioconvert", "converter");
+ if (!conv)
+ eWarning("failed to create audioconvert");
+
+ flt = gst_element_factory_make ("capsfilter", "flt");
+ if (!flt)
+ eWarning("failed to create capsfilter");
+
+ /* workaround for [3des]' driver bugs: */
+ if (flt)
+ {
+ GstCaps *caps = gst_caps_new_simple("audio/x-raw-int", "endianness", G_TYPE_INT, 4321, 0);
+ g_object_set (G_OBJECT (flt), "caps", caps, 0);
+ gst_caps_unref(caps);
+ }
+
+ sink = gst_element_factory_make ("alsasink", "alsa-output");
+ if (!sink)
+ eWarning("failed to create osssink");
+
+ if (m_gst_pipeline && source && decoder && conv && sink)
+ {
+ gst_bus_set_sync_handler(gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline)), gstBusSyncHandler, this);
+
+ g_object_set (G_OBJECT (source), "location", filename, NULL);
+ g_signal_connect (decoder, "new-decoded-pad", G_CALLBACK(gstCBnewPad), this);
+
+ /* gst_bin will take the 'floating references' */
+ gst_bin_add_many (GST_BIN (m_gst_pipeline),
+ source, decoder, NULL);
+
+ gst_element_link(source, decoder);
+
+ /* create audio bin */
+ m_gst_audio = gst_bin_new ("audiobin");
+ GstPad *audiopad = gst_element_get_pad (conv, "sink");
+
+ gst_bin_add_many(GST_BIN(m_gst_audio), conv, flt, sink, 0);
+ gst_element_link_many(conv, flt, sink, 0);
+ gst_element_add_pad(m_gst_audio, gst_ghost_pad_new ("sink", audiopad));
+ gst_object_unref(audiopad);
+
+ gst_bin_add (GST_BIN(m_gst_pipeline), m_gst_audio);
+ } else
+ {
+ if (m_gst_pipeline)
+ gst_object_unref(GST_OBJECT(m_gst_pipeline));
+ if (source)
+ gst_object_unref(GST_OBJECT(source));
+ if (decoder)
+ gst_object_unref(GST_OBJECT(decoder));
+ if (conv)
+ gst_object_unref(GST_OBJECT(conv));
+ if (sink)
+ gst_object_unref(GST_OBJECT(sink));
+ eDebug("sorry, can't play.");
+ }
+
+ gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
}
eServiceMP3::~eServiceMP3()
{
- eDebug("SERVICEMP3 destruct!");
if (m_state == stRunning)
stop();
+
+ if (m_stream_tags)
+ gst_tag_list_free(m_stream_tags);
+
+ if (m_gst_pipeline)
+ {
+ gst_object_unref (GST_OBJECT (m_gst_pipeline));
+ eDebug("SERVICEMP3 destruct!");
+ }
}
DEFINE_REF(eServiceMP3);
assert(m_state == stIdle);
m_state = stRunning;
-
- printf("mp3 starts\n");
- printf("MP3: %s start\n", filename.c_str());
- test.start(1000, 1);
- CONNECT(test.timeout, eServiceMP3::test_end);
+ if (m_gst_pipeline)
+ {
+ eDebug("starting pipeline");
+ gst_element_set_state (m_gst_pipeline, GST_STATE_PLAYING);
+ }
m_event(this, evStart);
return 0;
}
assert(m_state != stIdle);
if (m_state == stStopped)
return -1;
- test.stop();
- printf("MP3: %s stop\n", filename.c_str());
+ printf("MP3: %s stop\n", m_filename.c_str());
+ gst_element_set_state(m_gst_pipeline, GST_STATE_NULL);
m_state = stStopped;
- m_event(this, evEOF);
return 0;
}
// iPausableService
RESULT eServiceMP3::pause()
{
- printf("mp3 pauses!\n");
+ if (!m_gst_pipeline)
+ return -1;
+ gst_element_set_state(m_gst_pipeline, GST_STATE_PAUSED);
return 0;
}
RESULT eServiceMP3::unpause()
{
- printf("mp3 unpauses!\n");
+ if (!m_gst_pipeline)
+ return -1;
+ gst_element_set_state(m_gst_pipeline, GST_STATE_PLAYING);
+ return 0;
+}
+
+ /* iSeekableService */
+RESULT eServiceMP3::seek(ePtr<iSeekableService> &ptr)
+{
+ ptr = this;
return 0;
}
+RESULT eServiceMP3::getLength(pts_t &pts)
+{
+ if (!m_gst_pipeline)
+ return -1;
+ if (m_state != stRunning)
+ return -1;
+
+ GstFormat fmt = GST_FORMAT_TIME;
+ gint64 len;
+
+ if (!gst_element_query_duration(m_gst_pipeline, &fmt, &len))
+ return -1;
+
+ /* len is in nanoseconds. we have 90 000 pts per second. */
+
+ pts = len / 11111;
+ return 0;
+}
+
+RESULT eServiceMP3::seekTo(pts_t to)
+{
+ /* implement me */
+ return -1;
+}
+
+RESULT eServiceMP3::seekRelative(int direction, pts_t to)
+{
+ /* implement me */
+ return -1;
+}
+
+RESULT eServiceMP3::getPlayPosition(pts_t &pts)
+{
+ if (!m_gst_pipeline)
+ return -1;
+ if (m_state != stRunning)
+ return -1;
+
+ GstFormat fmt = GST_FORMAT_TIME;
+ gint64 len;
+
+ if (!gst_element_query_position(m_gst_pipeline, &fmt, &len))
+ return -1;
+
+ /* len is in nanoseconds. we have 90 000 pts per second. */
+
+ pts = len / 11111;
+ return 0;
+}
+
+RESULT eServiceMP3::setTrickmode(int trick)
+{
+ /* trickmode currently doesn't make any sense for us. */
+ return -1;
+}
+
+RESULT eServiceMP3::isCurrentlySeekable()
+{
+ return 1;
+}
+
RESULT eServiceMP3::info(ePtr<iServiceInformation>&i)
{
i = this;
RESULT eServiceMP3::getName(std::string &name)
{
- name = "MP3 File: " + filename;
+ name = "MP3 File: " + m_filename;
return 0;
}
+ void foreach(const GstTagList *list, const gchar *tag, gpointer user_data)
+ {
+ if (tag)
+ eDebug("Tag: %c%c%c%c", tag[0], tag[1], tag[2], tag[3]);
+
+ }
+
+void eServiceMP3::gstBusCall(GstBus *bus, GstMessage *msg)
+{
+ switch (GST_MESSAGE_TYPE (msg))
+ {
+ case GST_MESSAGE_EOS:
+ eDebug("end of stream!");
+ m_event((iPlayableService*)this, evEOF);
+ break;
+ case GST_MESSAGE_ERROR:
+ {
+ gchar *debug;
+ GError *err;
+ gst_message_parse_error (msg, &err, &debug);
+ g_free (debug);
+ eWarning("Gstreamer error: %s", err->message);
+ g_error_free(err);
+ exit(0);
+ break;
+ }
+ case GST_MESSAGE_TAG:
+ {
+ GstTagList *tags, *result;
+ gst_message_parse_tag(msg, &tags);
+ eDebug("is tag list: %d", GST_IS_TAG_LIST(tags));
+
+ result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_PREPEND);
+ if (result)
+ {
+ if (m_stream_tags)
+ gst_tag_list_free(m_stream_tags);
+ m_stream_tags = result;
+ }
+ gst_tag_list_free(tags);
+
+ eDebug("listing tags..");
+ gst_tag_list_foreach(m_stream_tags, foreach, 0);
+ eDebug("ok");
+
+ if (m_stream_tags)
+ {
+ gchar *title;
+ eDebug("is tag list: %d", GST_IS_TAG_LIST(m_stream_tags));
+ if (gst_tag_list_get_string(m_stream_tags, GST_TAG_TITLE, &title))
+ {
+ eDebug("TITLE: %s", title);
+ g_free(title);
+ } else
+ eDebug("no title");
+ } else
+ eDebug("no tags");
+
+ eDebug("tag list updated!");
+ break;
+ }
+ default:
+ eDebug("unknown message");
+ break;
+ }
+}
+
+GstBusSyncReply eServiceMP3::gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data)
+{
+ eServiceMP3 *_this = (eServiceMP3*)user_data;
+ _this->m_pump.send(1);
+ /* wake */
+ return GST_BUS_PASS;
+}
+
+void eServiceMP3::gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer user_data)
+{
+ eServiceMP3 *_this = (eServiceMP3*)user_data;
+ GstCaps *caps;
+ GstStructure *str;
+ GstPad *audiopad;
+
+ /* only link once */
+ audiopad = gst_element_get_pad (_this->m_gst_audio, "sink");
+ if (GST_PAD_IS_LINKED (audiopad)) {
+ g_object_unref (audiopad);
+ return;
+ }
+
+ /* check media type */
+ caps = gst_pad_get_caps (pad);
+ str = gst_caps_get_structure (caps, 0);
+ if (!g_strrstr (gst_structure_get_name (str), "audio")) {
+ gst_caps_unref (caps);
+ gst_object_unref (audiopad);
+ return;
+ }
+
+ gst_caps_unref (caps);
+ gst_pad_link (pad, audiopad);
+}
+
+
+void eServiceMP3::gstPoll(const int&)
+{
+ /* ok, we have a serious problem here. gstBusSyncHandler sends
+ us the wakup signal, but likely before it was posted.
+ the usleep, an EVIL HACK (DON'T DO THAT!!!) works around this.
+
+ I need to understand the API a bit more to make this work
+ proplerly. */
+ usleep(1);
+
+ GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (m_gst_pipeline));
+ GstMessage *message;
+ while (message = gst_bus_pop (bus))
+ {
+ gstBusCall(bus, message);
+ gst_message_unref (message);
+ }
+}
+
eAutoInitPtr<eServiceFactoryMP3> init_eServiceFactoryMP3(eAutoInitNumbers::service+1, "eServiceFactoryMP3");
+#else
+#warning gstreamer not available, not building media player
+#endif
#ifndef __servicemp3_h
#define __servicemp3_h
+#ifdef HAVE_GSTREAMER
+#include <lib/base/message.h>
#include <lib/service/iservice.h>
+#include <gst/gst.h>
class eStaticServiceMP3Info;
int getLength(const eServiceReference &ref);
};
-class eServiceMP3: public iPlayableService, public iPauseableService, public iServiceInformation, public Object
+typedef struct _GstElement GstElement;
+
+class eServiceMP3: public iPlayableService, public iPauseableService,
+ public iServiceInformation, public iSeekableService, public Object
{
DECLARE_REF(eServiceMP3);
-private:
- friend class eServiceFactoryMP3;
- std::string filename;
- eServiceMP3(const char *filename);
- eTimer test;
- void test_end();
- Signal2<void,iPlayableService*,int> m_event;
- enum
- {
- stIdle, stRunning, stStopped,
- };
- int m_state;
public:
virtual ~eServiceMP3();
RESULT setSlowMotion(int ratio);
RESULT setFastForward(int ratio);
+ RESULT seek(ePtr<iSeekableService> &ptr);
+
// not implemented (yet)
- RESULT seek(ePtr<iSeekableService> &ptr) { ptr = 0; return -1; }
RESULT audioTracks(ePtr<iAudioTrackSelection> &ptr) { ptr = 0; return -1; }
RESULT frontendStatusInfo(ePtr<iFrontendStatusInformation> &ptr) { ptr = 0; return -1; }
RESULT subServices(ePtr<iSubserviceList> &ptr) { ptr = 0; return -1; }
RESULT info(ePtr<iServiceInformation>&);
+ // iSeekableService
+ RESULT getLength(pts_t &SWIG_OUTPUT);
+ RESULT seekTo(pts_t to);
+ RESULT seekRelative(int direction, pts_t to);
+ RESULT getPlayPosition(pts_t &SWIG_OUTPUT);
+ RESULT setTrickmode(int trick);
+ RESULT isCurrentlySeekable();
+
// iServiceInformation
RESULT getName(std::string &name);
+private:
+ friend class eServiceFactoryMP3;
+ std::string m_filename;
+ eServiceMP3(const char *filename);
+ Signal2<void,iPlayableService*,int> m_event;
+ enum
+ {
+ stIdle, stRunning, stStopped,
+ };
+ int m_state;
+ GstElement *m_gst_pipeline, *m_gst_audio;
+ GstTagList *m_stream_tags;
+ eFixedMessagePump<int> m_pump;
+
+ void gstBusCall(GstBus *bus, GstMessage *msg);
+ static GstBusSyncReply gstBusSyncHandler(GstBus *bus, GstMessage *message, gpointer user_data);
+ static void gstCBnewPad(GstElement *decodebin, GstPad *pad, gboolean last, gpointer data);
+ void gstPoll(const int&);
};
+#endif
#endif
projects / vuplus_dvbapp / commitdiff