public static Thread StartA(string stringpipeline)
{
int argc = 1;
string[] argv = new string[] { "-vvv" };
try
{
NativeMethods.gst_init(ref argc, argv);
}
catch (BadImageFormatException)
{
CustomMessageBox.Show("The incorrect exe architecture has been detected at " + gstlaunch + "\nPlease install gstreamer for the correct architecture");
return(null);
}
uint v1 = 0, v2 = 0, v3 = 0, v4 = 0;
NativeMethods.gst_version(ref v1, ref v2, ref v3, ref v4);
log.InfoFormat("GStreamer {0}.{1}.{2}.{3}", v1, v2, v3, v4);
IntPtr error;
NativeMethods.gst_init_check(IntPtr.Zero, IntPtr.Zero, out error);
if (error != IntPtr.Zero)
{
var er = Marshal.PtrToStructure <GError>(error);
log.Error("gst_init_check: " + er.message);
return(null);
}
/* Set up the pipeline */
var pipeline = NativeMethods.gst_parse_launch(
stringpipeline,
//@"videotestsrc ! video/x-raw, width=1280, height=720, framerate=30/1 ! x264enc speed-preset=1 threads=1 sliced-threads=1 mb-tree=0 rc-lookahead=0 sync-lookahead=0 bframes=0 ! rtph264pay ! application/x-rtp ! rtph264depay ! avdec_h264 ! videoconvert ! video/x-raw,format=BGRA ! appsink name=outsink",
//@"-v udpsrc port=5601 buffer-size=300000 ! application/x-rtp ! rtph264depay ! avdec_h264 ! videoconvert ! video/x-raw,format=BGRA ! appsink name=outsink",
//@"rtspsrc location=rtsp://192.168.1.252/video1 ! application/x-rtp ! rtph264depay ! avdec_h264 ! videoconvert ! video/x-raw,format=BGRA ! appsink name=outsink",
out error);
//rtspsrc location=rtsp://192.168.1.21/live ! application/x-rtp ! rtph265depay ! avdec_h265 ! videoconvert ! video/x-raw,format=BGRA ! appsink name=outsink
if (error != IntPtr.Zero)
{
var er = Marshal.PtrToStructure <GError>(error);
log.Error("gst_parse_launch: " + er.message);
return(null);
}
// appsink is part of the parse launch
var appsink = NativeMethods.gst_bin_get_by_name(pipeline, "outsink");
//var appsink = NativeMethods.gst_element_factory_make("appsink", null);
int testdata = 0;
bool newdata = false;
GstAppSinkCallbacks callbacks = new GstAppSinkCallbacks();
callbacks.new_buffer += (sink, data) =>
{
newdata = true; return(GstFlowReturn.GST_FLOW_OK);
};
//callbacks.new_preroll += (sink, data) => { return GstFlowReturn.GST_FLOW_OK; };
callbacks.eos += (sink, data) => { };
NativeMethods.gst_app_sink_set_drop(appsink, true);
NativeMethods.gst_app_sink_set_max_buffers(appsink, 1);
NativeMethods.gst_app_sink_set_callbacks(appsink, callbacks, ref testdata, null);
/* Start playing */
var running = NativeMethods.gst_element_set_state(pipeline, GstState.GST_STATE_PLAYING) != GstStateChangeReturn.GST_STATE_CHANGE_FAILURE;
/* Wait until error or EOS */
var bus = NativeMethods.gst_element_get_bus(pipeline);
NativeMethods.gst_debug_bin_to_dot_file(pipeline, GstDebugGraphDetails.GST_DEBUG_GRAPH_SHOW_ALL,
"pipeline");
log.Info("graphviz of pipeline is at " + Path.GetTempPath() + "pipeline.dot");
//var msg = GStreamer.gst_bus_timed_pop_filtered(bus, GStreamer.GST_CLOCK_TIME_NONE, GStreamer.GstMessageType.GST_MESSAGE_ERROR | GStreamer.GstMessageType.GST_MESSAGE_EOS);
int Width = 0;
int Height = 0;
int trys = 0;
var th = new Thread(delegate()
{
// prevent it falling out of scope
GstAppSinkCallbacks callbacks2 = callbacks;
Thread.Sleep(500);
run = true;
while (run && !NativeMethods.gst_app_sink_is_eos(appsink))
{
try
{
var sample = NativeMethods.gst_app_sink_try_pull_sample(appsink, GST_SECOND);
if (sample != IntPtr.Zero)
{
trys = 0;
//var caps = gst_app_sink_get_caps(appsink);
var caps = NativeMethods.gst_sample_get_caps(sample);
var caps_s = NativeMethods.gst_caps_get_structure(caps, 0);
NativeMethods.gst_structure_get_int(caps_s, "width", out Width);
NativeMethods.gst_structure_get_int(caps_s, "height", out Height);
//var capsstring = gst_caps_to_string(caps_s);
//var structure = gst_sample_get_info(sample);
//var structstring = gst_structure_to_string(structure);
var buffer = NativeMethods.gst_sample_get_buffer(sample);
if (buffer != IntPtr.Zero)
{
var info = new GstMapInfo();
if (NativeMethods.gst_buffer_map(buffer, out info, GstMapFlags.GST_MAP_READ))
{
var image = new Bitmap(Width, Height, 4 * Width,
SkiaSharp.SKColorType.Bgra8888, info.data);
_onNewImage?.Invoke(null, image);
}
NativeMethods.gst_buffer_unmap(buffer, out info);
}
NativeMethods.gst_sample_unref(sample);
}
else
{
log.Info("failed gst_app_sink_try_pull_sample " + trys + "/60");
trys++;
if (trys > 60)
{
break;
}
}
}
catch (Exception ex)
{
log.Error(ex);
trys++;
if (trys > 60)
{
break;
}
}
}
NativeMethods.gst_element_set_state(pipeline, GstState.GST_STATE_NULL);
NativeMethods.gst_buffer_unref(bus);
// cleanup
_onNewImage?.Invoke(null, null);
log.Info("Gstreamer Exit");
})
{
IsBackground = true, Name = "gstreamer"
};
th.Start();
return(th);
}
public static extern void gst_app_sink_set_callbacks(IntPtr appsink, GstAppSinkCallbacks callbacks,
ref int testdata, object p);
public static extern void gst_app_sink_set_callbacks(IntPtr appsink, GstAppSinkCallbacks callbacks,
IntPtr user_data, IntPtr notify);
public static void StartA(string stringpipeline)
{
int argc = 1;
string[] argv = new string[] { "-vvv" };
NativeMethods.gst_init(ref argc, argv);
uint v1 = 0, v2 = 0, v3 = 0, v4 = 0;
NativeMethods.gst_version(ref v1, ref v2, ref v3, ref v4);
log.InfoFormat("GStreamer {0}.{1}.{2}.{3}", v1, v2, v3, v4);
IntPtr error;
NativeMethods.gst_init_check(IntPtr.Zero, IntPtr.Zero, out error);
if (error != IntPtr.Zero)
{
var er = Marshal.PtrToStructure <GError>(error);
log.Error("gst_init_check: " + er.message);
return;
}
/* Set up the pipeline */
var pipeline = NativeMethods.gst_parse_launch(
stringpipeline,
//@"videotestsrc ! video/x-raw, width=1280, height=720, framerate=30/1 ! x264enc speed-preset=1 threads=1 sliced-threads=1 mb-tree=0 rc-lookahead=0 sync-lookahead=0 bframes=0 ! rtph264pay ! application/x-rtp ! rtph264depay ! avdec_h264 ! videoconvert ! video/x-raw,format=BGRA ! appsink name=outsink",
//@"-v udpsrc port=5601 buffer-size=300000 ! application/x-rtp ! rtph264depay ! avdec_h264 ! videoconvert ! video/x-raw,format=BGRA ! appsink name=outsink",
//@"rtspsrc location=rtsp://192.168.1.252/video1 ! application/x-rtp ! rtph264depay ! avdec_h264 ! videoconvert ! video/x-raw,format=BGRA ! appsink name=outsink",
out error);
if (error != IntPtr.Zero)
{
var er = Marshal.PtrToStructure <GError>(error);
log.Error("gst_parse_launch: " + er.message);
return;
}
// appsink is part of the parse launch
var appsink = NativeMethods.gst_bin_get_by_name(pipeline, "outsink");
//var appsink = NativeMethods.gst_element_factory_make("appsink", null);
int testdata = 0;
GstAppSinkCallbacks callbacks = new GstAppSinkCallbacks();
callbacks.new_buffer += (sink, data) => { return(GstFlowReturn.GST_FLOW_OK); };
//callbacks.new_preroll += (sink, data) => { return GstFlowReturn.GST_FLOW_OK; };
callbacks.eos += (sink, data) => { };
NativeMethods.gst_app_sink_set_drop(appsink, true);
NativeMethods.gst_app_sink_set_max_buffers(appsink, 1);
NativeMethods.gst_app_sink_set_callbacks(appsink, callbacks, ref testdata, null);
/* Start playing */
NativeMethods.gst_element_set_state(pipeline, GstState.GST_STATE_PLAYING);
/* Wait until error or EOS */
var bus = NativeMethods.gst_element_get_bus(pipeline);
NativeMethods.gst_debug_bin_to_dot_file(pipeline, GstDebugGraphDetails.GST_DEBUG_GRAPH_SHOW_ALL, "pipeline");
//var msg = GStreamer.gst_bus_timed_pop_filtered(bus, GStreamer.GST_CLOCK_TIME_NONE, GStreamer.GstMessageType.GST_MESSAGE_ERROR | GStreamer.GstMessageType.GST_MESSAGE_EOS);
int Width = 0;
int Height = 0;
int trys = 0;
while (!NativeMethods.gst_app_sink_is_eos(appsink))
{
try
{
var sample = NativeMethods.gst_app_sink_try_pull_sample(appsink, GST_SECOND);
if (sample != IntPtr.Zero)
{
trys = 0;
//var caps = gst_app_sink_get_caps(appsink);
var caps = NativeMethods.gst_sample_get_caps(sample);
var caps_s = NativeMethods.gst_caps_get_structure(caps, 0);
NativeMethods.gst_structure_get_int(caps_s, "width", out Width);
NativeMethods.gst_structure_get_int(caps_s, "height", out Height);
//var capsstring = gst_caps_to_string(caps_s);
//var structure = gst_sample_get_info(sample);
//var structstring = gst_structure_to_string(structure);
var buffer = NativeMethods.gst_sample_get_buffer(sample);
if (buffer != IntPtr.Zero)
{
var info = new GstMapInfo();
if (NativeMethods.gst_buffer_map(buffer, out info, GstMapFlags.GST_MAP_READ))
{
var image = new Bitmap(Width, Height, 4 * Width,
System.Drawing.Imaging.PixelFormat.Format32bppArgb, info.data);
_onNewImage?.Invoke(null, image);
NativeMethods.gst_buffer_unmap(buffer, out info);
}
}
NativeMethods.gst_sample_unref(sample);
}
else
{
log.Info("failed gst_app_sink_try_pull_sample");
trys++;
if (trys > 60)
{
break;
}
}
}
catch (Exception ex)
{
log.Error(ex);
trys++;
if (trys > 60)
{
break;
}
}
}
// cleanup
_onNewImage?.Invoke(null, null);
NativeMethods.gst_element_set_state(pipeline, GstState.GST_STATE_NULL);
NativeMethods.gst_buffer_unref(bus);
log.Info("Gstreamer Exit");
}
static void ThreadStart(object datao)
{
var pipeline = (IntPtr)datao;
// appsink is part of the parse launch
var appsink = NativeMethods.gst_bin_get_by_name(pipeline, "outsink");
//var appsink = NativeMethods.gst_element_factory_make("appsink", null);
bool newdata = false;
GstAppSinkCallbacks callbacks = new GstAppSinkCallbacks();
callbacks.new_buffer += (sink, data) =>
{
newdata = true;
return(GstFlowReturn.GST_FLOW_OK);
};
callbacks.new_preroll += (sink, data) =>
{
log.Info("new_preroll");
return(GstFlowReturn.GST_FLOW_OK);
};
callbacks.eos += (sink, data) => { log.Info("EOS"); };
NativeMethods.gst_app_sink_set_drop(appsink, true);
NativeMethods.gst_app_sink_set_max_buffers(appsink, 1);
NativeMethods.gst_app_sink_set_callbacks(appsink, callbacks, IntPtr.Zero, IntPtr.Zero);
/* Start playing */
var running = NativeMethods.gst_element_set_state(pipeline, GstState.GST_STATE_PLAYING) != GstStateChangeReturn.GST_STATE_CHANGE_FAILURE;
/* Wait until error or EOS */
var bus = NativeMethods.gst_element_get_bus(pipeline);
int Width = 0;
int Height = 0;
int trys = 0;
// prevent it falling out of scope
GstAppSinkCallbacks callbacks2 = callbacks;
run = true;
while (run && !NativeMethods.gst_app_sink_is_eos(appsink))
{
try
{
var sample = NativeMethods.gst_app_sink_try_pull_sample(appsink, GST_SECOND * 5);
if (sample != IntPtr.Zero)
{
trys = 0;
//var caps = gst_app_sink_get_caps(appsink);
var caps = NativeMethods.gst_sample_get_caps(sample);
var caps_s = NativeMethods.gst_caps_get_structure(caps, 0);
NativeMethods.gst_structure_get_int(caps_s, "width", out Width);
NativeMethods.gst_structure_get_int(caps_s, "height", out Height);
//var capsstring = gst_caps_to_string(caps_s);
//var structure = gst_sample_get_info(sample);
//var structstring = gst_structure_to_string(structure);
var buffer = NativeMethods.gst_sample_get_buffer(sample);
if (buffer != IntPtr.Zero)
{
var info = new GstMapInfo();
if (NativeMethods.gst_buffer_map(buffer, out info, GstMapFlags.GST_MAP_READ))
{
var image = new Bitmap(Width, Height, 4 * Width, SkiaSharp.SKColorType.Bgra8888,
info.data);
_onNewImage?.Invoke(null, image);
}
NativeMethods.gst_buffer_unmap(buffer, out info);
}
NativeMethods.gst_sample_unref(sample);
}
else
{
log.Info("failed gst_app_sink_try_pull_sample " + trys + "");
}
}
catch (Exception ex)
{
log.Error(ex);
trys++;
if (trys > 12)
{
break;
}
}
}
NativeMethods.gst_element_set_state(pipeline, GstState.GST_STATE_NULL);
NativeMethods.gst_buffer_unref(bus);
// cleanup
_onNewImage?.Invoke(null, null);
log.Info("Gstreamer Exit");
}
