static void NewVideoSample(object sender, NewSampleArgs args)
{
var sink = (Gst.App.AppSink)sender;
// Retrieve the buffer
var sample = sink.PullSample();
if (sample != null)
{
Caps caps = sample.Caps;
var cap = caps[0];
string format;
int width = 0;
int height = 0;
int fpsNumerator = 0;
int fpsDenominator = 1;
format = cap.GetString("format");
cap.GetInt("width", out width);
cap.GetInt("height", out height);
cap.GetFraction("framerate", out fpsNumerator, out fpsDenominator);
MapInfo map;
if (sample.Buffer.Map(out map, MapFlags.Read))
{
// TODO: work with your RGBA frame in map.Data or map DataPtr or use map.CopyTo(IntPtr, long) to copy raw memory
sample.Buffer.Unmap(map);
}
sample.Dispose();
}
}
static void NewAudioSample(object sender, NewSampleArgs args)
{
var sink = (Gst.App.AppSink)sender;
// Retrieve the buffer
var sample = sink.PullSample();
if (sample != null)
{
var caps = sample.Caps;
var cap = caps[0];
int rate = 0; // audio rate
int channels = 0; // number of audio channels
cap.GetInt("rate", out rate);
cap.GetInt("channels", out channels);
MapInfo map;
if (sample.Buffer.Map(out map, MapFlags.Read))
{
float[] f32leSamples = new float[map.Size / sizeof(float)];
// convert sample's byte array to floats
System.Buffer.BlockCopy(map.Data, 0, f32leSamples, 0, f32leSamples.Length * sizeof(float));
sample.Buffer.Unmap(map);
// TODO: work with your F32LE sample in f32leSamples
}
sample.Dispose();
}
}
/// <summary>
/// The appsink has received a buffer
/// </summary>
static void NewSample(object o, NewSampleArgs args)
{
AppSink sink = o as AppSink;
// Retrieve the buffer
using (var sample = sink.PullSample())
{
if (sample == null)
{
return;
}
// The only thing we do in this example is print a * to indicate a received buffer
Console.Write("* ");
sample.Dispose();
}
}
private void Videosink_NewSample(object o, NewSampleArgs args)
{
using (var sample = videosink.PullSample())
PushImage(sample);
}
