void ApplicationSource::setLatency(quint64 min, quint64 max)
{
d->lazyConstruct(this);
if (d->appSrc()) {
gst_app_src_set_latency(d->appSrc(), min, max);
}
}
/* C920 Live Src Instance Initializer
* ----------------------------------
* Set AppSrc Callbacks and initialize default settings
*/
static void c920_live_src_init(C920LiveSrc *self)
{
GstAppSrc *base = GST_APP_SRC(self);
self->priv = C920_LIVE_SRC_GET_PRIVATE(self);
self->priv->cb.need_data = c920_live_src_need_data;
self->priv->cb.enough_data = c920_live_src_enough_data;
self->priv->cb.seek_data = NULL;
gst_app_src_set_latency(base, 100, 1000);
gst_app_src_set_size(base, -1);
gst_app_src_set_stream_type(base, GST_APP_STREAM_TYPE_STREAM);
gst_app_src_set_max_bytes(base, 2 * 1024 * 1024);
gst_app_src_set_callbacks(base, &self->priv->cb, NULL, NULL);
}
BOOL tsmf_gstreamer_pipeline_build(TSMFGstreamerDecoder* mdecoder)
{
#if GST_VERSION_MAJOR > 0
const char* video = "appsrc name=videosource ! queue2 name=videoqueue ! decodebin name=videodecoder !";
const char* audio = "appsrc name=audiosource ! queue2 name=audioqueue ! decodebin name=audiodecoder ! audioconvert ! audiorate ! audioresample ! volume name=audiovolume !";
#else
const char* video = "appsrc name=videosource ! queue2 name=videoqueue ! decodebin2 name=videodecoder !";
const char* audio = "appsrc name=audiosource ! queue2 name=audioqueue ! decodebin2 name=audiodecoder ! audioconvert ! audiorate ! audioresample ! volume name=audiovolume !";
#endif
char pipeline[1024];
if (!mdecoder)
return FALSE;
/* TODO: Construction of the pipeline from a string allows easy overwrite with arguments.
* The only fixed elements necessary are appsrc and the volume element for audio streams.
* The rest could easily be provided in gstreamer pipeline notation from command line. */
if (mdecoder->media_type == TSMF_MAJOR_TYPE_VIDEO)
sprintf_s(pipeline, sizeof(pipeline), "%s %s name=videosink", video, tsmf_platform_get_video_sink());
else
sprintf_s(pipeline, sizeof(pipeline), "%s %s name=audiosink", audio, tsmf_platform_get_audio_sink());
DEBUG_TSMF("pipeline=%s", pipeline);
mdecoder->pipe = gst_parse_launch(pipeline, NULL);
if (!mdecoder->pipe)
{
WLog_ERR(TAG, "Failed to create new pipe");
return FALSE;
}
if (mdecoder->media_type == TSMF_MAJOR_TYPE_VIDEO)
mdecoder->src = gst_bin_get_by_name(GST_BIN(mdecoder->pipe), "videosource");
else
mdecoder->src = gst_bin_get_by_name(GST_BIN(mdecoder->pipe), "audiosource");
if (!mdecoder->src)
{
WLog_ERR(TAG, "Failed to get appsrc");
return FALSE;
}
if (mdecoder->media_type == TSMF_MAJOR_TYPE_VIDEO)
mdecoder->queue = gst_bin_get_by_name(GST_BIN(mdecoder->pipe), "videoqueue");
else
mdecoder->queue = gst_bin_get_by_name(GST_BIN(mdecoder->pipe), "audioqueue");
if (!mdecoder->queue)
{
WLog_ERR(TAG, "Failed to get queue");
return FALSE;
}
if (mdecoder->media_type == TSMF_MAJOR_TYPE_VIDEO)
mdecoder->outsink = gst_bin_get_by_name(GST_BIN(mdecoder->pipe), "videosink");
else
mdecoder->outsink = gst_bin_get_by_name(GST_BIN(mdecoder->pipe), "audiosink");
if (!mdecoder->outsink)
{
WLog_ERR(TAG, "Failed to get sink");
return FALSE;
}
g_signal_connect(mdecoder->outsink, "child-added", G_CALLBACK(cb_child_added), mdecoder);
if (mdecoder->media_type == TSMF_MAJOR_TYPE_AUDIO)
{
mdecoder->volume = gst_bin_get_by_name(GST_BIN(mdecoder->pipe), "audiovolume");
if (!mdecoder->volume)
{
WLog_ERR(TAG, "Failed to get volume");
return FALSE;
}
tsmf_gstreamer_change_volume((ITSMFDecoder*)mdecoder, mdecoder->gstVolume*((double) 10000), mdecoder->gstMuted);
}
tsmf_platform_register_handler(mdecoder);
/* AppSrc settings */
GstAppSrcCallbacks callbacks =
{
tsmf_gstreamer_need_data,
tsmf_gstreamer_enough_data,
tsmf_gstreamer_seek_data
};
g_object_set(mdecoder->src, "format", GST_FORMAT_TIME, NULL);
g_object_set(mdecoder->src, "is-live", FALSE, NULL);
g_object_set(mdecoder->src, "block", FALSE, NULL);
g_object_set(mdecoder->src, "blocksize", 1024, NULL);
gst_app_src_set_caps((GstAppSrc *) mdecoder->src, mdecoder->gst_caps);
gst_app_src_set_callbacks((GstAppSrc *)mdecoder->src, &callbacks, mdecoder, NULL);
gst_app_src_set_stream_type((GstAppSrc *) mdecoder->src, GST_APP_STREAM_TYPE_SEEKABLE);
gst_app_src_set_latency((GstAppSrc *) mdecoder->src, 0, -1);
gst_app_src_set_max_bytes((GstAppSrc *) mdecoder->src, (guint64) 0);//unlimited
g_object_set(G_OBJECT(mdecoder->queue), "use-buffering", FALSE, NULL);
g_object_set(G_OBJECT(mdecoder->queue), "use-rate-estimate", FALSE, NULL);
g_object_set(G_OBJECT(mdecoder->queue), "max-size-buffers", 0, NULL);
g_object_set(G_OBJECT(mdecoder->queue), "max-size-bytes", 0, NULL);
g_object_set(G_OBJECT(mdecoder->queue), "max-size-time", (guint64) 0, NULL);
/* Only set these properties if not an autosink, otherwise we will set properties when real sinks are added */
if (!g_strcmp0(G_OBJECT_TYPE_NAME(mdecoder->outsink), "GstAutoVideoSink") && !g_strcmp0(G_OBJECT_TYPE_NAME(mdecoder->outsink), "GstAutoAudioSink"))
{
if (mdecoder->media_type == TSMF_MAJOR_TYPE_VIDEO)
{
gst_base_sink_set_max_lateness((GstBaseSink *) mdecoder->outsink, 10000000); /* nanoseconds */
}
else
{
gst_base_sink_set_max_lateness((GstBaseSink *) mdecoder->outsink, 10000000); /* nanoseconds */
g_object_set(G_OBJECT(mdecoder->outsink), "buffer-time", (gint64) 20000, NULL); /* microseconds */
g_object_set(G_OBJECT(mdecoder->outsink), "drift-tolerance", (gint64) 20000, NULL); /* microseconds */
g_object_set(G_OBJECT(mdecoder->outsink), "latency-time", (gint64) 10000, NULL); /* microseconds */
g_object_set(G_OBJECT(mdecoder->outsink), "slave-method", 1, NULL);
}
g_object_set(G_OBJECT(mdecoder->outsink), "sync", TRUE, NULL); /* synchronize on the clock */
g_object_set(G_OBJECT(mdecoder->outsink), "async", TRUE, NULL); /* no async state changes */
}
tsmf_window_create(mdecoder);
tsmf_gstreamer_pipeline_set_state(mdecoder, GST_STATE_READY);
tsmf_gstreamer_pipeline_set_state(mdecoder, GST_STATE_PLAYING);
mdecoder->pipeline_start_time_valid = 0;
mdecoder->shutdown = 0;
mdecoder->paused = FALSE;
GST_DEBUG_BIN_TO_DOT_FILE(GST_BIN(mdecoder->pipe), GST_DEBUG_GRAPH_SHOW_ALL, get_type(mdecoder));
return TRUE;
}
