32 #ifdef USE_IMAGEMAGICK
34 #include "../include/ImageReader.h"
64 image = std::shared_ptr<Magick::Image>(
new Magick::Image(path));
67 image->backgroundColor(Magick::Color(
"none"));
70 catch (
const Magick::Exception& e) {
72 throw InvalidFile(
"File could not be opened.", path);
126 throw ReaderClosed(
"The FFmpegReader is closed. Call Open() before calling this method.", path);
129 std::shared_ptr<Frame> image_frame(
new Frame(requested_frame, image->size().width(), image->size().height(),
"#000000", 0, 2));
132 image_frame->AddMagickImage(image);
150 root[
"type"] =
"ImageReader";
167 catch (
const std::exception& e)
170 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
181 if (!root[
"path"].isNull())
182 path = root[
"path"].asString();
#define MAGICK_IMAGE_ALPHA(im, a)
This class represents a fraction.
int num
Numerator for the fraction.
double ToDouble()
Return this fraction as a double (i.e. 1/2 = 0.5)
void Reduce()
Reduce this fraction (i.e. 640/480 = 4/3)
int den
Denominator for the fraction.
This class represents a single frame of video (i.e. image & audio data)
ImageReader(std::string path)
Json::Value JsonValue() const
Generate Json::Value for this object.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
void SetJson(const std::string value)
Load JSON string into this object.
void Open()
Open File - which is called by the constructor automatically.
std::shared_ptr< Frame > GetFrame(int64_t requested_frame)
std::string Json() const override
Get and Set JSON methods.
Exception for files that can not be found or opened.
Exception for invalid JSON.
openshot::ReaderInfo info
Information about the current media file.
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
Exception when a reader is closed, and a frame is requested.
This namespace is the default namespace for all code in the openshot library.
const Json::Value stringToJson(const std::string value)
bool has_single_image
Determines if this file only contains a single image.
float duration
Length of time (in seconds)
int width
The width of the video (in pixesl)
openshot::Fraction fps
Frames per second, as a fraction (i.e. 24/1 = 24 fps)
openshot::Fraction display_ratio
The ratio of width to height of the video stream (i.e. 640x480 has a ratio of 4/3)
int height
The height of the video (in pixels)
int64_t video_length
The number of frames in the video stream.
std::string vcodec
The name of the video codec used to encode / decode the video stream.
openshot::Fraction pixel_ratio
The pixel ratio of the video stream as a fraction (i.e. some pixels are not square)
bool has_video
Determines if this file has a video stream.
bool has_audio
Determines if this file has an audio stream.
openshot::Fraction video_timebase
The video timebase determines how long each frame stays on the screen.
int64_t file_size
Size of file (in bytes)