public CameraEncoder(VideoEncodeCfg cfgVideo, Action <MediaFrame> callBack, Canvas canvas = null)
{
_cfgVideo = cfgVideo;
_fps = cfgVideo.FrameRate;
this.Canvas = canvas;
_capturer = CreateCapturer();
var @params = new X264Params(_cfgVideo.Width, _cfgVideo.Height, _fps, cfgVideo.VideoBitRate);
if (cfgVideo.Params.ContainsKey("X264Encode"))
{
@params.method = (int)cfgVideo.Params["X264Encode"];
}
if (cfgVideo.Params.ContainsKey("KeyFrameRate"))
{
@params.key_frame_max = (int)cfgVideo.Params["KeyFrameRate"];
}
_x264 = new X264Native(@params);
_x264.Init();
_ffscale = new FFScale(_cfgVideo.Width, _cfgVideo.Height, 0, 12, _cfgVideo.Width, _cfgVideo.Height, 12, 12);
_draw = cfgVideo.Draw;
_draw.SetSize(_cfgVideo.Width, _cfgVideo.Height);
_callBack = callBack;
}
public ScreenCapturer(int width, int height, int fps, Action <byte[]> callBack)
{
_width = width;
_height = height;
_fps = fps;
_callBack = callBack;
_ffscale = new FFScale(width, height, 3, 24, width, height, 0, 12);
}
public MixerVideoCapturer(Mixer.Video.Canvas canvas, int width, int height, int fps, Action <byte[]> callBack)
{
_width = width;
_height = height;
_fps = fps;
_callBack = callBack;
this.Canvas = canvas;
_ffscale = new FFScale(width, height, 3, 24, width, height, 0, 12);
}
public static void Test()
{
try {
FFScale s = new FFScale(320, 240, 29, 32, 320, 240, 0, 12);
byte[] @in = new byte[320 * 240 * 4];
byte[] @out = s.FormatS(@in);
@out = s.FormatS(@in);
} catch (Exception e) {
}
}
public void SetSize(int width, int height)
{
_width = width;
_height = height;
_scale = new FFScale(width, height, 0, 12, width, height, 3, 24);
if (_image != null)
{
_image.Dispose();
}
_image = null;
lock (_sync) {
_buffer = null;
}
}
private void FFScaleSetup(AMMediaType mt)
{
//e436eb7d-524f-11ce-9f53-0020af0ba770 RGB24
//32595559-0000-0010-8000-00aa00389b71 YUY2
//
if (mt.subType.ToString() == "32595559-0000-0010-8000-00aa00389b71")
{
_ffscale = new FFScale(_width, _height, 1, 12, _width, _height, 0, 12);
}
else if (mt.subType.ToString() == "e436eb7d-524f-11ce-9f53-0020af0ba770")
{
_ffscale = new FFScale(_width, _height, 2, 24, _width, _height, 0, 12);
}
else
{
throw new Exception("FFScaleSetup Error");
}
}
public CameraAForge(int camera, int width, int height, Action <byte[]> callBack)
{
_callBack = callBack;
_ffscale = new FFScale(width, height, 3, 24, width, height, 0, 12);
videoDevices = new AForge.Video.DirectShow.FilterInfoCollection(FilterCategory.VideoInputDevice);
videoDevice = new AForge.Video.DirectShow.VideoCaptureDevice(videoDevices[camera].MonikerString);
foreach (var item in videoDevice.VideoCapabilities)
{
if (item.FrameSize.Width == width && item.FrameSize.Height == height)
{
videoDevice.VideoResolution = item;
}
}
if (videoDevice.VideoResolution == null)
{
throw new Exception(string.Format("摄像头不支持{0}*{1}分辨率", width, height));
}
videoDevice.NewFrame += NewFrame;
videoDevice.RGBRawFrame += YUVFrame;
}
public FFImp(AVCodecCfg cfg, bool isDec, bool isvideo = true)
{
this.isDec = isDec;
this.cfg = cfg;
var pcfg = FunctionEx.StructToIntPtr(cfg);
pAVObj = FunctionEx.StructToIntPtr(new AVModel());
lock (_lock) {
if (!ffimp_init())
{
throw new Exception("ffimp init error");
}
}
if (isvideo)
{
int pOutBufSize = cfg.width * cfg.height * 3;
if (pOutBufSize == 0)
{
pOutBufSize = 1920 * 1080 * 4;
}
pOutBuf = Marshal.AllocHGlobal(pOutBufSize);
int init_r = 0;
lock (_lock)
{
if (this.isDec)
{
init_r = ffimp_video_decode_init(ref pAVObj, pcfg, pOutBuf, pOutBufSize);
}
else
{
init_r = ffimp_video_encode_init(ref pAVObj, pcfg, pOutBuf, pOutBufSize);
}
_ffscale = new FFScale(cfg.width, cfg.height, 0, 12, cfg.width, cfg.height, 0, 12);
}
}
else
{
int pOutBufSize = cfg.width * cfg.height * 3;
if (pOutBufSize == 0)
{
pOutBufSize = 2048 * 2;
}
pOutBuf = Marshal.AllocHGlobal(pOutBufSize);
int init_r = 0;
lock (_lock)
{
if (this.isDec)
{
init_r = ffimp_audio_decode_init(ref pAVObj, pcfg, pOutBuf, pOutBufSize);
}
else
{
init_r = ffimp_audio_decode_init(ref pAVObj, pcfg, pOutBuf, pOutBufSize);
}
// _ffscale = new FFScale(cfg.width, cfg.height, 0, 12, cfg.width, cfg.height, 0, 12);
}
}
Marshal.FreeHGlobal(pcfg);
}
