void NavigatorUserMedia::getUserMedia (const MediaStreamConstraints & constraints, NavigatorUserMediaCallback *sink)
{
return_assert(sink);
return_assert(_pc_factory.get());
NavigatorUserMediaError error;
std::string slabel = kLocalStreamLabel;
ubase::zeroptr<MediaStream> stream = CreateMediaStream(slabel, _pc_factory, NULL);
return_assert(stream.get());
// for audio track
if (constraints.has_audio) {
LOGD("get audio track and add it to stream");
std::string alabel = kAudioLabel;
MediaTrackConstraints audio_constraints(constraints.audio);
ubase::zeroptr<MediaStreamTrack> audio_track =
CreateMediaStreamTrack(XRTC_AUDIO, alabel, &audio_constraints, _pc_factory, NULL);
if (audio_track->getptr() == NULL) {
LOGW("fail to get audio track")
error.errstr = "no audio track";
sink->ErrorCallback(error);
}else {
stream->addTrack(audio_track);
}
}
// for video track
if (constraints.has_video) {
LOGD("get video track and add it to stream");
std::string vlabel = kVideoLabel;
MediaTrackConstraints video_constraints(constraints.video);
ubase::zeroptr<MediaStreamTrack> video_track =
CreateMediaStreamTrack(XRTC_VIDEO, vlabel, &video_constraints, _pc_factory, NULL);
if (video_track->getptr() == NULL) {
LOGW("fail to get video track")
error.errstr = "no video track";
sink->ErrorCallback(error);
}else {
stream->addTrack(video_track);
}
}
LOGD("return a/v stream")
sink->SuccessCallback(stream);
}
void CGstPlayback::AnalyzeStreams()
{
return_assert(m_playbin);
g_print("%s, begin", __func__);
g_object_get (m_playbin, "n-video", &m_numVideo, NULL);
g_object_get (m_playbin, "n-audio", &m_numAudio, NULL);
g_object_get (m_playbin, "n-text", &m_numText, NULL);
for (gint i = 0; i < m_numVideo; i++) {
GstTagList *tags = NULL;
gchar *str = NULL;
/* Retrieve the stream's video tags */
g_signal_emit_by_name (m_playbin, "get-video-tags", i, &tags);
if (tags) {
g_print ("video stream %d:\n", i);
gst_tag_list_get_string (tags, GST_TAG_VIDEO_CODEC, &str);
g_print (" codec: %s\n", str ? str : "unknown");
g_free (str);
gst_tag_list_free (tags);
}
}
for (gint i = 0; i < m_numAudio; i++) {
GstTagList *tags = NULL;
gchar *str = NULL;
guint rate = 0;
/* Retrieve the stream's audio tags */
g_signal_emit_by_name (m_playbin, "get-audio-tags", i, &tags);
if (tags) {
g_print ("audio stream %d:\n", i);
if (gst_tag_list_get_string (tags, GST_TAG_AUDIO_CODEC, &str)) {
g_print (" codec: %s\n", str);
g_free (str);
}
if (gst_tag_list_get_string (tags, GST_TAG_LANGUAGE_CODE, &str)) {
g_print (" language: %s\n", str);
g_free (str);
}
if (gst_tag_list_get_uint (tags, GST_TAG_BITRATE, &rate)) {
g_print (" bitrate: %d\n", rate);
}
gst_tag_list_free (tags);
}
}
for (gint i = 0; i < m_numText; i++) {
GstTagList *tags = NULL;
gchar *str = NULL;
/* Retrieve the stream's subtitle tags */
g_signal_emit_by_name (m_playbin, "get-text-tags", i, &tags);
if (tags) {
g_print ("subtitle stream %d:\n", i);
if (gst_tag_list_get_string (tags, GST_TAG_LANGUAGE_CODE, &str)) {
g_print (" language: %s\n", str);
g_free (str);
}
gst_tag_list_free (tags);
}
}
g_object_get (GST_OBJECT(m_playbin), "current-video", &m_curVideo, NULL);
g_object_get (GST_OBJECT(m_playbin), "current-audio", &m_curAudio, NULL);
g_object_get (GST_OBJECT(m_playbin), "current-text", &m_curText, NULL);
}
void Put_enabled(boolean enable) {
return_assert(m_track.get());
m_track->set_enabled(enable);
}
