Example #1
0
AVSValue ExpAnd::Evaluate(IScriptEnvironment* env) 
{
  AVSValue x = a->Evaluate(env);
  if (!x.IsBool())
    env->ThrowError("Evaluate: left operand of && must be boolean (true/false)");
  if (!x.AsBool())
    return x;
  AVSValue y = b->Evaluate(env);
  if (!y.IsBool())
    env->ThrowError("Evaluate: right operand of && must be boolean (true/false)");
  return y;
}
Example #2
0
AVSValue ExpConditional::Evaluate(IScriptEnvironment* env) 
{
  AVSValue cond = If->Evaluate(env);
  if (!cond.IsBool())
    env->ThrowError("Evaluate: left of `?' must be boolean (true/false)");
  return (cond.AsBool() ? Then : Else)->Evaluate(env);
}
Example #3
0
int __stdcall dimzon_avs_getvariable_b(SafeStruct* pstr, const char* name, bool* result)
{
	try
	{
		pstr->err[0] = 0;
		try
		{
			AVSValue var = pstr->env->GetVar(name);
			if(var.Defined())
			{
				if(!var.IsBool())
				{
					strncpy_s(pstr->err, ERRMSG_LEN, "AviSynthWrapper: Requested variable is not Boolean!", _TRUNCATE);
					return AVS_VARWRNGTYPE;
				}
				*result = var.AsBool();
				return 0;
			}
			return AVS_VARNDEFINED;
		}
		catch(AvisynthError err)
		{
			strncpy_s(pstr->err, ERRMSG_LEN, err.msg, _TRUNCATE);
			return AVS_GERROR;
		}
	}
	catch(IScriptEnvironment::NotFound)
	{
		return AVS_VARNFOUND;
	}
}
Example #4
0
AVSValue ExpWhileLoop::Evaluate(IScriptEnvironment* env) 
{
  AVSValue result;
  IScriptEnvironment2 *env2 = static_cast<IScriptEnvironment2*>(env);
  env2->GetVar("last", &result);

  AVSValue cond;
  do {
    cond = condition->Evaluate(env);
    if (!cond.IsBool())
      env->ThrowError("while: condition must be boolean (true/false)");

    if (!cond.AsBool())
      break;

    if (body)
    {
      try
      {
        result = body->Evaluate(env);
        if (result.IsClip())
          env->SetVar("last", result);
      }
      catch(const BreakStmtException&)
      {
        break;
      }
    }
  }
  while (true);
  
  return result;
}
Example #5
0
AVSValue ExpNot::Evaluate(IScriptEnvironment* env)
{
  AVSValue x = e->Evaluate(env);
  if (x.IsBool())
    return !x.AsBool();
  else {
    env->ThrowError("Evaluate: operand of `!' must be boolean (true/false)");
    return 0;
  }
}
Example #6
0
AVSValue ExpEqual::Evaluate(IScriptEnvironment* env) 
{
  AVSValue x = a->Evaluate(env);
  AVSValue y = b->Evaluate(env);
  if (x.IsBool() && y.IsBool()) {
    return x.AsBool() == y.AsBool();
  }
  else if (x.IsInt() && y.IsInt()) {
    return x.AsInt() == y.AsInt();
  }
  else if (x.IsFloat() && y.IsFloat()) {
    return x.AsFloat() == y.AsFloat();
  }
  else if (x.IsClip() && y.IsClip()) {
    return x.AsClip() == y.AsClip();
  }
  else if (x.IsString() && y.IsString()) {
    return !lstrcmpi(x.AsString(), y.AsString());
  }
  else {
    env->ThrowError("Evaluate: operands of `==' and `!=' must be comparable");
    return 0;
  }
}
Example #7
0
AVSValueStruct CAsifScriptEnvironment::Invoke(const char* command) {
    AVSValueStruct ir;
    ir.arraysize = 0;
    ir.errors = false;
    ir.returnvalue.ival = 0;
    ir.type = 0;

    std::vector<const char *> tempargnames(args.size());

    for (size_t i = 0; i < tempargnames.size(); i++)
        tempargnames[i] = (argnames[i].c_str() == "" ? nullptr : argnames[i].c_str());

    try {
        AVSValue ret = envse->Invoke(command, AVSValue(args.data(), args.size()), tempargnames.data());

        if (ret.IsClip()) {
            ir.returnvalue.cval = new CAsifClip(ret.AsClip(), envse);
            ir.type = 1;
        } else if (ret.IsBool()) {
            ir.returnvalue.bval = ret.AsBool();
            ir.type = 2;
        } else if (ret.IsInt()) {
            ir.returnvalue.ival = ret.AsInt();
            ir.type = 3;
        } else if (ret.IsFloat()) {
            ir.returnvalue.fval = (float)ret.AsFloat();
            ir.type = 4;
        } else if (ret.IsString()) {
            ir.returnvalue.sval = ret.AsString();
            ir.type = 5;
        } else if (ret.IsArray()) {
            //	ir.returnvalue.aval=ret.
            ir.arraysize = ret.ArraySize();
            ir.type = 6;
        }

    } catch (AvisynthError &e) {
        ir.type = 100;
        ir.returnvalue.sval = e.msg;
        ir.errors = 1;
    }

    ResetArgs();

    return ir;
}
Example #8
0
int __stdcall dimzon_avs_isfuncexists(SafeStruct* pstr, const char *func)
{
	pstr->err[0] = 0;
	try
	{
		AVSValue var = pstr->env->FunctionExists(func);
		if (var.IsBool())
		{
			return (var.AsBool()) ? 0 : AVS_VARNFOUND;
		}
		return AVS_VARWRNGTYPE;
	}
	catch(AvisynthError err)
	{
		strncpy_s(pstr->err, ERRMSG_LEN, err.msg, _TRUNCATE);
		return AVS_GERROR;
	}
}
Example #9
0
AVSValue ExpBlockConditional::Evaluate(IScriptEnvironment* env) 
{
  AVSValue result;
  IScriptEnvironment2 *env2 = static_cast<IScriptEnvironment2*>(env);
  env2->GetVar("last", &result);

  AVSValue cond = If->Evaluate(env);
  if (!cond.IsBool())
    env->ThrowError("if: condition must be boolean (true/false)");
  if (cond.AsBool())
  {
    if (Then) // note: "Then" can also be NULL if its block is empty
      result = Then->Evaluate(env);
  }
  else if (Else) // note: "Else" can also be NULL if its block is empty
    result = Else->Evaluate(env);

  if (result.IsClip())
    env->SetVar("last", result);

  return result;
}
Example #10
0
PVideoFrame __stdcall ScriptClip::GetFrame(int n, IScriptEnvironment* env) {
  AVSValue prev_last = env->GetVarDef("last");  // Store previous last
  AVSValue prev_current_frame = env->GetVarDef("current_frame");  // Store previous current_frame

  env->SetVar("last",(AVSValue)child);       // Set explicit last
  env->SetVar("current_frame",(AVSValue)n);  // Set frame to be tested by the conditional filters.

  if (show) {
    PVideoFrame dst = child->GetFrame(n,env);
    env->MakeWritable(&dst);
    env->ApplyMessage(&dst, vi, script.AsString(), vi.width/6, 0xa0a0a0, 0, 0);
    env->SetVar("last",prev_last);       // Restore implicit last
    env->SetVar("current_frame",prev_current_frame);       // Restore current_frame
    return dst;
  }

  AVSValue result;
  PVideoFrame eval_return;   // Frame to be returned if script should be evaluated AFTER frame has been fetched. Otherwise not used.

  if (eval_after) eval_return = child->GetFrame(n,env);

  try {
    ScriptParser parser(env, script.AsString(), "[ScriptClip]");
    PExpression exp = parser.Parse();
    result = exp->Evaluate(env);
  } catch (AvisynthError error) {    
    const char* error_msg = error.msg;  

    PVideoFrame dst = child->GetFrame(n,env);
    env->MakeWritable(&dst);
    env->ApplyMessage(&dst, vi, error_msg, vi.width/W_DIVISOR, 0xa0a0a0, 0, 0);
    env->SetVar("last",prev_last);       // Restore implicit last
    env->SetVar("current_frame",prev_current_frame);       // Restore current_frame
    return dst;
  }

  env->SetVar("last",prev_last);       // Restore implicit last
  env->SetVar("current_frame",prev_current_frame);       // Restore current_frame

  if (eval_after && only_eval) return eval_return;
  if (only_eval) return child->GetFrame(n,env);
  
  const char* error = NULL;
  VideoInfo vi2 = vi;
  if (!result.IsClip()) {
    if (result.IsBool())
      error = "ScriptClip: Function did not return a video clip! (Was a bool)";
    else if (result.IsInt())
      error = "ScriptClip: Function did not return a video clip! (Was an int)";
    else if (result.IsFloat())
      error = "ScriptClip: Function did not return a video clip! (Was a float)";
    else if (result.IsString())
      error = "ScriptClip: Function did not return a video clip! (Was a string)";
    else if (result.IsArray())
      error = "ScriptClip: Function did not return a video clip! (Was an array)";
    else if (!result.Defined())
      error = "ScriptClip: Function did not return a video clip! (Was the undefined value)";
    else
      error = "ScriptClip: Function did not return a video clip! (type is unknown)";
  } else {
    vi2 = result.AsClip()->GetVideoInfo();
    if (!vi.IsSameColorspace(vi2)) { 
      error = "ScriptClip: Function did not return a video clip of the same colorspace as the source clip!";
    } else if (vi2.width != vi.width) {
      error = "ScriptClip: Function did not return a video clip with the same width as the source clip!";
    } else if (vi2.height != vi.height) {
      error = "ScriptClip: Function did not return a video clip with the same height as the source clip!";
    }
  }

  if (error != NULL) {
    PVideoFrame dst = child->GetFrame(n,env);
    env->MakeWritable(&dst);
    env->ApplyMessage(&dst, vi, error, vi.width/W_DIVISOR, 0xa0a0a0, 0, 0);
    return dst;
  }

  n = min(n,vi2.num_frames-1);  // We ignore it if the new clip is not as long as the current one. This can allow the resulting clip to be one frame.

  return result.AsClip()->GetFrame(n,env);
}
Example #11
0
int __stdcall dimzon_avs_invoke(SafeStruct* pstr, char *func, char **arg, int len, AVSDLLVideoInfo *vi, float* func_out)
{
	try
	{
		*func_out = -FLT_MAX;
		pstr->err[0] = 0;

		const int N = 10;
		int actual_len = 0;

		AVSValue args[N] = { };
		if (len == 0) args[0] = 0;
		else if (len > N) len = N;

		for(int i = 0; i < len; i++)
		{
			if (strlen(arg[i]) > 0)
			{
				string lower = arg[i];
				bool was_letters = false;
				bool was_digits = false;
				bool was_spaces = false;

				//Слишком длинные значения - точно текст
				for (unsigned int n = 0; n < lower.size() && lower.size() <= 10; n++)
				{
					lower[n] = tolower(lower[n]);
					if (!was_letters && isalpha(lower[n])) was_letters = true;
					if (!was_digits && isdigit(lower[n])) was_digits = true;
					if (!was_spaces && isspace(lower[n])) was_spaces = true;
				}

				if (i == 0 && was_letters && !was_digits && !was_spaces && lower.compare("last") == 0)
				{
					//Clip (last)
					if(!pstr->clp) throw AvisynthError("AviSynthWrapper: The \"last\" clip was requested, but it doesn't exist!");
					args[actual_len] = pstr->clp; //pstr->res->AsClip();
					actual_len += 1;

					//pstr->clp; pstr->res->AsClip(); //С обработкой после прошлых вызовов Invoke
					//pstr->env->GetVar("last").AsClip(); //"Чистый" выход скрипта
				}
				else if (was_letters && !was_digits && !was_spaces && lower.compare("true") == 0)
				{
					//Bool (true)
					args[actual_len] = true;
					actual_len += 1;
				}
				else if (was_letters && !was_digits && !was_spaces && lower.compare("false") == 0)
				{
					//Bool (false)
					args[actual_len] = false;
					actual_len += 1;
				}
				else if (!was_letters && was_digits && !was_spaces && lower.find(".") != string::npos)
				{
					//Float (double..)
					args[actual_len] = atof(arg[i]);
					actual_len += 1;
				}
				else if (!was_letters && was_digits && !was_spaces)
				{
					//Integer
					args[actual_len] = atoi(arg[i]);
					actual_len += 1;
				}
				else
				{
					//String
					args[actual_len] = arg[i];
					actual_len += 1;
				}
			}
		}

		AVSValue res = pstr->env->Invoke(func, AVSValue(args, actual_len));

		if (!res.IsClip())
		{
			//Вывод результата
			if (res.IsBool())
			{ 
				if(!res.AsBool()) *func_out = 0;
				else *func_out = FLT_MAX;
			}
			else if (res.IsInt()) *func_out = (float)res.AsInt();
			else if (res.IsFloat()) *func_out = (float)res.AsFloat();
			else if (res.IsString()) { *func_out = FLT_MAX; strncpy_s(pstr->err, ERRMSG_LEN, res.AsString(), _TRUNCATE); }
		}
		else
		{
			pstr->clp = res.AsClip();
			VideoInfo inf = pstr->clp->GetVideoInfo();

			if (vi != NULL)
			{
				vi->width   = inf.width;
				vi->height  = inf.height;
				vi->raten   = inf.fps_numerator;
				vi->rated   = inf.fps_denominator;
				vi->field_based = (inf.IsFieldBased()) ? 1 : 0;
				vi->first_field = (inf.IsTFF()) ? 1 : (inf.IsBFF()) ? 2 : 0;
				vi->num_frames = inf.num_frames;

				//Или не меняем?
				if (vi->pixel_type_orig == 0) vi->pixel_type_orig = inf.pixel_type;
				if (vi->sample_type_orig == 0) vi->sample_type_orig = inf.sample_type;

				vi->pixel_type = inf.pixel_type;
				vi->sample_type = inf.sample_type;

				vi->num_audio_samples        = inf.num_audio_samples;
				vi->audio_samples_per_second = inf.audio_samples_per_second;
				vi->nchannels                = inf.nchannels;
			}

			//Нужен ли нам вообще этот res?!
			if(pstr->res) delete pstr->res;
			pstr->res = new AVSValue(res);

			pstr->err[0] = 0;
		}

		return 0;
	}
	catch(AvisynthError err)
	{
		strncpy_s(pstr->err, ERRMSG_LEN, err.msg, _TRUNCATE);
		return AVS_GERROR;
	}
	catch(IScriptEnvironment::NotFound)
	{
		strncpy_s(pstr->err, ERRMSG_LEN, "AviSynthWrapper: Wrong function name or invalid parameters was passed to Invoke!", _TRUNCATE);
		return AVS_VARNFOUND
	}
}