public void Release()
{
//lock (this)
//{
_isReleased = true;
try
{
var avmode = new AVModel()
{
context = FunctionEx.IntPtrToStruct <AVModel>(pAVObj).context,
};
lock (this)
ffimp_free_avobj(FunctionEx.StructToIntPtr(avmode));
avmode = new AVModel()
{
codec = FunctionEx.IntPtrToStruct <AVModel>(pAVObj).codec,
};
lock (this)
ffimp_free_avobj(FunctionEx.StructToIntPtr(avmode));
//ffimp_free_avobj(pAVObj);
if (_ffscale != null)
{
_ffscale.Release();
}
Marshal.FreeHGlobal(pOutBuf);
}
catch (Exception e)
{
Console.WriteLine("ffimp error:{0}", e);
}
//}
}
public int AudioEnc(byte[] inData, ref byte[] outData)
{
lock (this) {
if (_isReleased)
{
return(0);
}
var pInData = FunctionEx.BytesToIntPtr(inData);
BFrame bframe = new BFrame();
bframe.Buff = FunctionEx.BytesToIntPtr(inData);
bframe.Size = inData.Length;
IntPtr pbframe = FunctionEx.StructToIntPtr(bframe);
var encFrameBuffLen = 192000;
var encFrameBuff = Marshal.AllocHGlobal(encFrameBuffLen);
var encSize = ffimp_audio_encode(pAVObj, encFrameBuff, encFrameBuffLen, pbframe);
if (encSize == -1)
{
return(encSize);
}
outData = FunctionEx.IntPtrToBytes(encFrameBuff, 0, encSize);
Marshal.FreeHGlobal(pInData);
Marshal.FreeHGlobal(encFrameBuff);
return(encSize);
}
}
public void InitAudio(int freq, int samples, int channels)
{
audioCallBack = new Sdl.AudioSpecCallbackDelegate(AudioCallBack);
Sdl.SDL_AudioSpec s1 = new Sdl.SDL_AudioSpec()
{
freq = freq,
samples = (short)samples,
channels = (byte)channels,
format = 0x0010,
callback = Marshal.GetFunctionPointerForDelegate(audioCallBack),
};
Sdl.SDL_AudioSpec s2 = new Sdl.SDL_AudioSpec();
var p1 = FunctionEx.StructToIntPtr(s1);
var p2 = FunctionEx.StructToIntPtr(s2);
var cs = Sdl.SDL_OpenAudio(p1, p2);
}
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);
}