* Author: Robert Nagy, ronag89@gmail.com
*/
-#include "../stdafx.h"
+#include "../StdAfx.h"
#include "frame_transform.h"
#include <boost/range/algorithm/equal.hpp>
+#include <boost/thread.hpp>
namespace caspar { namespace core {
-
+
// image_transform
+template<typename Rect>
+void transform_rect(Rect& self, const Rect& other)
+{
+ self.ul[0] += other.ul[0];
+ self.ul[1] += other.ul[1];
+ self.lr[0] *= other.lr[0];
+ self.lr[1] *= other.lr[1];
+}
+
+void transform_corners(corners& self, const corners& other)
+{
+ transform_rect(self, other);
+
+ self.ur[0] *= other.ur[0];
+ self.ur[1] += other.ur[1];
+ self.ll[0] += other.ll[0];
+ self.ll[1] *= other.ll[1];
+
+ // TODO: figure out the math to compose perspective transforms correctly.
+}
+
image_transform& image_transform::operator*=(const image_transform &other)
{
opacity *= other.opacity;
brightness *= other.brightness;
contrast *= other.contrast;
saturation *= other.saturation;
- fill_translation[0] += other.fill_translation[0]*fill_scale[0];
- fill_translation[1] += other.fill_translation[1]*fill_scale[1];
+
+ // TODO: can this be done in any way without knowing the aspect ratio of the
+ // actual video mode? Thread local to the rescue
+ auto aspect_ratio = detail::get_current_aspect_ratio();
+ aspect_ratio *= fill_scale[0] / fill_scale[1];
+
+ boost::array<double, 2> rotated;
+
+ auto orig_x = other.fill_translation[0];
+ auto orig_y = other.fill_translation[1] / aspect_ratio;
+ rotated[0] = orig_x * std::cos(angle) - orig_y * std::sin(angle);
+ rotated[1] = orig_x * std::sin(angle) + orig_y * std::cos(angle);
+ rotated[1] *= aspect_ratio;
+
+ anchor[0] += other.anchor[0] * fill_scale[0];
+ anchor[1] += other.anchor[1] * fill_scale[1];
+ fill_translation[0] += rotated[0] * fill_scale[0];
+ fill_translation[1] += rotated[1] * fill_scale[1];
fill_scale[0] *= other.fill_scale[0];
fill_scale[1] *= other.fill_scale[1];
- clip_translation[0] += other.clip_translation[0]*clip_scale[0];
- clip_translation[1] += other.clip_translation[1]*clip_scale[1];
+ clip_translation[0] += other.clip_translation[0] * clip_scale[0];
+ clip_translation[1] += other.clip_translation[1] * clip_scale[1];
clip_scale[0] *= other.clip_scale[0];
clip_scale[1] *= other.clip_scale[1];
+ angle += other.angle;
+
+ transform_rect(crop, other.crop);
+ transform_corners(perspective, other.perspective);
+
levels.min_input = std::max(levels.min_input, other.levels.min_input);
levels.max_input = std::min(levels.max_input, other.levels.max_input);
levels.min_output = std::max(levels.min_output, other.levels.min_output);
levels.max_output = std::min(levels.max_output, other.levels.max_output);
levels.gamma *= other.levels.gamma;
+ chroma.key = std::max(chroma.key, other.chroma.key);
+ chroma.threshold += other.chroma.threshold;
+ chroma.softness += other.chroma.softness;
+ chroma.spill += other.chroma.spill;
field_mode = field_mode & other.field_mode;
is_key |= other.is_key;
is_mix |= other.is_mix;
is_still |= other.is_still;
+ use_mipmap |= other.use_mipmap;
+ blend_mode = std::max(blend_mode, other.blend_mode);
+ layer_depth += other.layer_depth;
+
return *this;
}
return image_transform(*this) *= other;
}
+double do_tween(double time, double source, double dest, double duration, const tweener& tween)
+{
+ return tween(time, source, dest - source, duration);
+};
+
+template<typename Rect>
+void do_tween_rectangle(const Rect& source, const Rect& dest, Rect& out, double time, double duration, const tweener& tweener)
+{
+ out.ul[0] = do_tween(time, source.ul[0], dest.ul[0], duration, tweener);
+ out.ul[1] = do_tween(time, source.ul[1], dest.ul[1], duration, tweener);
+ out.lr[0] = do_tween(time, source.lr[0], dest.lr[0], duration, tweener);
+ out.lr[1] = do_tween(time, source.lr[1], dest.lr[1], duration, tweener);
+}
+
+void do_tween_corners(const corners& source, const corners& dest, corners& out, double time, double duration, const tweener& tweener)
+{
+ do_tween_rectangle(source, dest, out, time, duration, tweener);
+
+ out.ur[0] = do_tween(time, source.ur[0], dest.ur[0], duration, tweener);
+ out.ur[1] = do_tween(time, source.ur[1], dest.ur[1], duration, tweener);
+ out.ll[0] = do_tween(time, source.ll[0], dest.ll[0], duration, tweener);
+ out.ll[1] = do_tween(time, source.ll[1], dest.ll[1], duration, tweener);
+};
+
image_transform image_transform::tween(double time, const image_transform& source, const image_transform& dest, double duration, const tweener& tween)
-{
- auto do_tween = [](double time, double source, double dest, double duration, const tweener& tween)
- {
- return tween(time, source, dest-source, duration);
- };
-
+{
image_transform result;
+
result.brightness = do_tween(time, source.brightness, dest.brightness, duration, tween);
result.contrast = do_tween(time, source.contrast, dest.contrast, duration, tween);
result.saturation = do_tween(time, source.saturation, dest.saturation, duration, tween);
- result.opacity = do_tween(time, source.opacity, dest.opacity, duration, tween);
- result.fill_translation[0] = do_tween(time, source.fill_translation[0], dest.fill_translation[0], duration, tween),
- result.fill_translation[1] = do_tween(time, source.fill_translation[1], dest.fill_translation[1], duration, tween);
- result.fill_scale[0] = do_tween(time, source.fill_scale[0], dest.fill_scale[0], duration, tween),
- result.fill_scale[1] = do_tween(time, source.fill_scale[1], dest.fill_scale[1], duration, tween);
- result.clip_translation[0] = do_tween(time, source.clip_translation[0], dest.clip_translation[0], duration, tween),
- result.clip_translation[1] = do_tween(time, source.clip_translation[1], dest.clip_translation[1], duration, tween);
- result.clip_scale[0] = do_tween(time, source.clip_scale[0], dest.clip_scale[0], duration, tween),
+ result.opacity = do_tween(time, source.opacity, dest.opacity, duration, tween);
+ result.anchor[0] = do_tween(time, source.anchor[0], dest.anchor[0], duration, tween);
+ result.anchor[1] = do_tween(time, source.anchor[1], dest.anchor[1], duration, tween);
+ result.fill_translation[0] = do_tween(time, source.fill_translation[0], dest.fill_translation[0], duration, tween);
+ result.fill_translation[1] = do_tween(time, source.fill_translation[1], dest.fill_translation[1], duration, tween);
+ result.fill_scale[0] = do_tween(time, source.fill_scale[0], dest.fill_scale[0], duration, tween);
+ result.fill_scale[1] = do_tween(time, source.fill_scale[1], dest.fill_scale[1], duration, tween);
+ result.clip_translation[0] = do_tween(time, source.clip_translation[0], dest.clip_translation[0], duration, tween);
+ result.clip_translation[1] = do_tween(time, source.clip_translation[1], dest.clip_translation[1], duration, tween);
+ result.clip_scale[0] = do_tween(time, source.clip_scale[0], dest.clip_scale[0], duration, tween);
result.clip_scale[1] = do_tween(time, source.clip_scale[1], dest.clip_scale[1], duration, tween);
+ result.angle = do_tween(time, source.angle, dest.angle, duration, tween);
result.levels.max_input = do_tween(time, source.levels.max_input, dest.levels.max_input, duration, tween);
- result.levels.min_input = do_tween(time, source.levels.min_input, dest.levels.min_input, duration, tween);
+ result.levels.min_input = do_tween(time, source.levels.min_input, dest.levels.min_input, duration, tween);
result.levels.max_output = do_tween(time, source.levels.max_output, dest.levels.max_output, duration, tween);
result.levels.min_output = do_tween(time, source.levels.min_output, dest.levels.min_output, duration, tween);
result.levels.gamma = do_tween(time, source.levels.gamma, dest.levels.gamma, duration, tween);
+ result.chroma.threshold = do_tween(time, source.chroma.threshold, dest.chroma.threshold, duration, tween);
+ result.chroma.softness = do_tween(time, source.chroma.softness, dest.chroma.softness, duration, tween);
+ result.chroma.spill = do_tween(time, source.chroma.spill, dest.chroma.spill, duration, tween);
+ result.chroma.key = dest.chroma.key;
result.field_mode = source.field_mode & dest.field_mode;
result.is_key = source.is_key | dest.is_key;
result.is_mix = source.is_mix | dest.is_mix;
result.is_still = source.is_still | dest.is_still;
-
+ result.use_mipmap = source.use_mipmap | dest.use_mipmap;
+ result.blend_mode = std::max(source.blend_mode, dest.blend_mode);
+ result.layer_depth = dest.layer_depth;
+
+ do_tween_rectangle(source.crop, dest.crop, result.crop, time, duration, tween);
+ do_tween_corners(source.perspective, dest.perspective, result.perspective, time, duration, tween);
+
return result;
}
-bool operator==(const image_transform& lhs, const image_transform& rhs)
+bool eq(double lhs, double rhs)
{
- auto eq = [](double lhs, double rhs)
- {
- return std::abs(lhs - rhs) < 5e-8;
- };
+ return std::abs(lhs - rhs) < 5e-8;
+};
+bool operator==(const corners& lhs, const corners& rhs)
+{
+ return
+ boost::range::equal(lhs.ul, rhs.ul, eq) &&
+ boost::range::equal(lhs.ur, rhs.ur, eq) &&
+ boost::range::equal(lhs.lr, rhs.lr, eq) &&
+ boost::range::equal(lhs.ll, rhs.ll, eq);
+}
+
+bool operator==(const rectangle& lhs, const rectangle& rhs)
+{
+ return
+ boost::range::equal(lhs.ul, rhs.ul, eq) &&
+ boost::range::equal(lhs.lr, rhs.lr, eq);
+}
+
+bool operator==(const image_transform& lhs, const image_transform& rhs)
+{
return
eq(lhs.opacity, rhs.opacity) &&
eq(lhs.contrast, rhs.contrast) &&
eq(lhs.brightness, rhs.brightness) &&
eq(lhs.saturation, rhs.saturation) &&
+ boost::range::equal(lhs.anchor, rhs.anchor, eq) &&
boost::range::equal(lhs.fill_translation, rhs.fill_translation, eq) &&
boost::range::equal(lhs.fill_scale, rhs.fill_scale, eq) &&
boost::range::equal(lhs.clip_translation, rhs.clip_translation, eq) &&
boost::range::equal(lhs.clip_scale, rhs.clip_scale, eq) &&
+ eq(lhs.angle, rhs.angle) &&
lhs.field_mode == rhs.field_mode &&
lhs.is_key == rhs.is_key &&
lhs.is_mix == rhs.is_mix &&
- lhs.is_still == rhs.is_still;
+ lhs.is_still == rhs.is_still &&
+ lhs.use_mipmap == rhs.use_mipmap &&
+ lhs.blend_mode == rhs.blend_mode &&
+ lhs.layer_depth == rhs.layer_depth &&
+ lhs.crop == rhs.crop &&
+ lhs.perspective == rhs.perspective;
}
bool operator!=(const image_transform& lhs, const image_transform& rhs)
audio_transform audio_transform::tween(double time, const audio_transform& source, const audio_transform& dest, double duration, const tweener& tween)
{
- auto do_tween = [](double time, double source, double dest, double duration, const tweener& tween)
- {
- return tween(time, source, dest-source, duration);
- };
-
- audio_transform result;
+ audio_transform result;
result.is_still = source.is_still | dest.is_still;
result.volume = do_tween(time, source.volume, dest.volume, duration, tween);
bool operator==(const audio_transform& lhs, const audio_transform& rhs)
{
- auto eq = [](double lhs, double rhs)
- {
- return std::abs(lhs - rhs) < 5e-8;
- };
-
return eq(lhs.volume, rhs.volume) && lhs.is_still == rhs.is_still;
}
return !(lhs == rhs);
}
-}}
\ No newline at end of file
+
+core::chroma::type get_chroma_mode(const std::wstring& str)
+{
+ if (boost::iequals(str, L"none"))
+ return core::chroma::type::none;
+ else if (boost::iequals(str, L"green"))
+ return core::chroma::type::green;
+ else if (boost::iequals(str, L"blue"))
+ return core::chroma::type::blue;
+ else
+ CASPAR_THROW_EXCEPTION(user_error() << msg_info("chroma mode has to be one of none, green or blue"));
+}
+
+std::wstring get_chroma_mode(core::chroma::type type)
+{
+ switch (type)
+ {
+ case core::chroma::type::none:
+ return L"none";
+ case core::chroma::type::green:
+ return L"green";
+ case core::chroma::type::blue:
+ return L"blue";
+ default:
+ CASPAR_THROW_EXCEPTION(programming_error() << msg_info("Unhandled enum constant"));
+ };
+}
+
+namespace detail {
+
+boost::thread_specific_ptr<double>& get_thread_local_aspect_ratio()
+{
+ static boost::thread_specific_ptr<double> aspect_ratio;
+
+ if (!aspect_ratio.get())
+ aspect_ratio.reset(new double(1.0));
+
+ return aspect_ratio;
+}
+
+void set_current_aspect_ratio(double aspect_ratio)
+{
+ *get_thread_local_aspect_ratio() = aspect_ratio;
+}
+
+double get_current_aspect_ratio()
+{
+ return *get_thread_local_aspect_ratio();
+}
+
+}}}
projects / casparcg / blobdiff