28 #include "../include/ImageReader.h" 58 image = std::shared_ptr<Magick::Image>(
new Magick::Image(path));
61 image->backgroundColor(Magick::Color(
"none"));
64 catch (Magick::Exception
e) {
66 throw InvalidFile(
"File could not be opened.", path);
120 throw ReaderClosed(
"The FFmpegReader is closed. Call Open() before calling this method.", path);
123 std::shared_ptr<Frame> image_frame(
new Frame(requested_frame, image->size().width(), image->size().height(),
"#000000", 0, 2));
126 image_frame->AddMagickImage(image);
144 root[
"type"] =
"ImageReader";
157 bool success = reader.parse( value, root );
160 throw InvalidJSON(
"JSON could not be parsed (or is invalid)",
"");
170 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)",
"");
181 if (!root[
"path"].isNull())
182 path = root[
"path"].asString();
int num
Numerator for the fraction.
int width
The width of the video (in pixesl)
This class represents a single frame of video (i.e. image & audio data)
float duration
Length of time (in seconds)
Exception when a reader is closed, and a frame is requested.
bool has_video
Determines if this file has a video stream.
Fraction display_ratio
The ratio of width to height of the video stream (i.e. 640x480 has a ratio of 4/3) ...
int64_t file_size
Size of file (in bytes)
bool has_audio
Determines if this file has an audio stream.
void SetJsonValue(Json::Value root)
Load Json::JsonValue into this object.
int64_t video_length
The number of frames in the video stream.
int height
The height of the video (in pixels)
std::shared_ptr< Frame > GetFrame(int64_t requested_frame)
Exception for files that can not be found or opened.
string Json()
Get and Set JSON methods.
void SetJson(string value)
Load JSON string into this object.
void Open()
Open File - which is called by the constructor automatically.
This class represents a fraction.
bool has_single_image
Determines if this file only contains a single image.
virtual Json::Value JsonValue()=0
Generate Json::JsonValue for this object.
virtual void SetJsonValue(Json::Value root)=0
Load Json::JsonValue into this object.
ReaderInfo info
Information about the current media file.
Fraction fps
Frames per second, as a fraction (i.e. 24/1 = 24 fps)
Fraction video_timebase
The video timebase determines how long each frame stays on the screen.
Fraction pixel_ratio
The pixel ratio of the video stream as a fraction (i.e. some pixels are not square) ...
This namespace is the default namespace for all code in the openshot library.
Exception for invalid JSON.
Json::Value JsonValue()
Generate Json::JsonValue for this object.
string vcodec
The name of the video codec used to encode / decode the video stream.
int den
Denominator for the fraction.
double ToDouble()
Return this fraction as a double (i.e. 1/2 = 0.5)