Ejemplo n.º 1
0
        private static void SendTestPattern(object state)
        {
            lock (_sendTestPatternTimer)
            {
                unsafe
                {
                    if (OnTestPatternSampleReady != null)
                    {
                        var stampedTestPattern = _testPattern.Clone() as System.Drawing.Image;
                        AddTimeStampAndLocation(stampedTestPattern, DateTime.UtcNow.ToString("dd MMM yyyy HH:mm:ss:fff"), "Test Pattern");
                        var sampleBuffer = BitmapToRGBA(stampedTestPattern as System.Drawing.Bitmap, _testPattern.Width, _testPattern.Height);

                        var i420Frame = _videoFrameConverter.Convert(sampleBuffer);

                        _presentationTimestamp += VIDEO_TIMESTAMP_SPACING;

                        //i420Frame.key_frame = _forceKeyFrame ? 1 : 0;
                        i420Frame.pts = _presentationTimestamp;

                        byte[] encodedBuffer = _ffmpegEncoder.Encode(AVCodecID.AV_CODEC_ID_VP8, i420Frame, FRAMES_PER_SECOND);

                        if (encodedBuffer != null)
                        {
                            OnTestPatternSampleReady?.Invoke(SDPMediaTypesEnum.video, VIDEO_TIMESTAMP_SPACING, encodedBuffer);
                        }

                        stampedTestPattern.Dispose();
                    }
                }
            }
        }
Ejemplo n.º 2
0
        private static void SendTestPattern(object state)
        {
            lock (_sendTestPatternTimer)
            {
                unsafe
                {
                    if (OnTestPatternSampleReady != null)
                    {
                        var stampedTestPattern = _testPattern.Clone() as System.Drawing.Image;
                        AddTimeStampAndLocation(stampedTestPattern, DateTime.UtcNow.ToString("dd MMM yyyy HH:mm:ss:fff"), "Test Pattern");
                        var sampleBuffer = PixelConverter.BitmapToRGBA(stampedTestPattern as System.Drawing.Bitmap, _testPattern.Width, _testPattern.Height);

                        byte[] i420Buffer    = PixelConverter.RGBAtoYUV420Planar(sampleBuffer, _testPattern.Width, _testPattern.Height);
                        var    encodedBuffer = _vp8Encoder.Encode(i420Buffer, false);

                        _presentationTimestamp += VIDEO_TIMESTAMP_SPACING;

                        if (encodedBuffer != null)
                        {
                            OnTestPatternSampleReady?.Invoke(SDPMediaTypesEnum.video, VIDEO_TIMESTAMP_SPACING, encodedBuffer);
                        }

                        stampedTestPattern.Dispose();
                    }
                }
            }
        }
Ejemplo n.º 3
0
        private static void SendTestPattern(object state)
        {
            try
            {
                lock (_sendTestPatternTimer)
                {
                    unsafe
                    {
                        byte[] sampleBuffer  = null;
                        byte[] encodedBuffer = null;

                        if (OnTestPatternSampleReady != null)
                        {
                            var stampedTestPattern = _testPattern.Clone() as System.Drawing.Image;
                            AddTimeStampAndLocation(stampedTestPattern, DateTime.UtcNow.ToString("dd MMM yyyy HH:mm:ss:fff"), "Test Pattern");
                            sampleBuffer = BitmapToRGB24(stampedTestPattern as System.Drawing.Bitmap);

                            fixed(byte *p = sampleBuffer)
                            {
                                byte[] convertedFrame = null;
                                _colorConverter.ConvertRGBtoYUV(p, VideoSubTypesEnum.BGR24, _testPattern.Width, _testPattern.Height, _stride, VideoSubTypesEnum.I420, ref convertedFrame);

                                fixed(byte *q = convertedFrame)
                                {
                                    int encodeResult = _vpxEncoder.Encode(q, convertedFrame.Length, 1, ref encodedBuffer);

                                    if (encodeResult != 0)
                                    {
                                        logger.LogWarning("VPX encode of video sample failed.");
                                    }
                                }
                            }

                            stampedTestPattern.Dispose();
                            stampedTestPattern = null;

                            OnTestPatternSampleReady?.Invoke(SDPMediaTypesEnum.video, VP8_TIMESTAMP_SPACING, encodedBuffer);

                            encodedBuffer = null;
                        }
                        else
                        {
                            _sendTestPatternTimer?.Dispose();
                            _sendTestPatternTimer = null;
                        }
                    }
                }
            }
            catch (Exception excp)
            {
                logger.LogError("Exception SendTestPattern. " + excp);
            }
        }
Ejemplo n.º 4
0
        private async void SampleTestPattern()
        {
            try
            {
                logger.LogDebug("Starting test pattern sampling thread.");

                _isTestPatternSampling = true;

                Bitmap testPattern = new Bitmap(_testPatternImagePath);

                // Get the stride.
                Rectangle rect = new Rectangle(0, 0, testPattern.Width, testPattern.Height);
                System.Drawing.Imaging.BitmapData bmpData =
                    testPattern.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite,
                                         testPattern.PixelFormat);

                // Get the address of the first line.
                int stride = bmpData.Stride;

                testPattern.UnlockBits(bmpData);

                // Initialise the video codec and color converter.
                SIPSorceryMedia.VpxEncoder vpxEncoder = new VpxEncoder();
                vpxEncoder.InitEncoder((uint)testPattern.Width, (uint)testPattern.Height, (uint)stride);

                SIPSorceryMedia.ImageConvert colorConverter = new ImageConvert();

                byte[] sampleBuffer  = null;
                byte[] encodedBuffer = null;
                int    sampleCount   = 0;
                uint   rtpTimestamp  = 0;

                while (!_exit)
                {
                    if (OnTestPatternSampleReady == null)
                    {
                        logger.LogDebug("No active clients, test pattern sampling paused.");
                        break;
                    }
                    else
                    {
                        var stampedTestPattern = testPattern.Clone() as System.Drawing.Image;
                        AddTimeStampAndLocation(stampedTestPattern, DateTime.UtcNow.ToString("dd MMM yyyy HH:mm:ss:fff"), "Test Pattern");
                        sampleBuffer = BitmapToRGB24(stampedTestPattern as System.Drawing.Bitmap);

                        unsafe
                        {
                            fixed(byte *p = sampleBuffer)
                            {
                                byte[] convertedFrame = null;
                                colorConverter.ConvertRGBtoYUV(p, VideoSubTypesEnum.BGR24, testPattern.Width, testPattern.Height, stride, VideoSubTypesEnum.I420, ref convertedFrame);

                                fixed(byte *q = convertedFrame)
                                {
                                    int encodeResult = vpxEncoder.Encode(q, convertedFrame.Length, 1, ref encodedBuffer);

                                    if (encodeResult != 0)
                                    {
                                        logger.LogWarning("VPX encode of video sample failed.");
                                        continue;
                                    }
                                }
                            }

                            stampedTestPattern.Dispose();

                            OnTestPatternSampleReady?.Invoke(SDPMediaTypesEnum.video, rtpTimestamp, encodedBuffer);

                            sampleCount++;
                            rtpTimestamp += VP8_TIMESTAMP_SPACING;
                        }

                        await Task.Delay(30);
                    }
                }

                testPattern.Dispose();
                vpxEncoder.Dispose();
            }
            catch (Exception excp)
            {
                logger.LogError("Exception SampleTestPattern. " + excp);
            }
            finally
            {
                logger.LogDebug("test pattern sampling thread stopped.");
                _isTestPatternSampling = false;
            }
        }