OpenShot Library | libopenshot
0.2.5
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31 #include "../include/DummyReader.h"
110 throw ReaderClosed(
"The ImageReader is closed. Call Open() before calling this method.",
"dummy");
118 image_frame->number = requested_frame;
123 throw InvalidFile(
"No frame could be created from this type of file.",
"dummy");
138 root[
"type"] =
"DummyReader";
154 catch (
const std::exception& e)
157 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
const Json::Value stringToJson(const std::string value)
int sample_rate
The number of audio samples per second (44100 is a common sample rate)
float ToFloat()
Return this fraction as a float (i.e. 1/2 = 0.5)
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
juce::CriticalSection getFrameCriticalSection
Section lock for multiple threads.
This namespace is the default namespace for all code in the openshot library.
This class represents a fraction.
std::shared_ptr< openshot::Frame > GetFrame(int64_t requested_frame)
Fraction Reciprocal()
Return the reciprocal as a Fraction.
openshot::ReaderInfo info
Information about the current media file.
float duration
Length of time (in seconds)
bool has_video
Determines if this file has a video stream.
int width
The width of the video (in pixesl)
int64_t video_length
The number of frames in the video stream.
int height
The height of the video (in pixels)
int num
Numerator for the fraction.
int den
Denominator for the fraction.
void Reduce()
Reduce this fraction (i.e. 640/480 = 4/3)
bool has_audio
Determines if this file has an audio stream.
Exception for invalid JSON.
int64_t file_size
Size of file (in bytes)
openshot::Fraction video_timebase
The video timebase determines how long each frame stays on the screen.
Json::Value JsonValue() const override
Generate Json::Value for this object.
Exception for files that can not be found or opened.
std::string vcodec
The name of the video codec used to encode / decode the video stream.
void SetJson(const std::string value)
Load JSON string into this object.
DummyReader()
Blank constructor for DummyReader, with default settings.
Exception when a reader is closed, and a frame is requested.
openshot::Fraction fps
Frames per second, as a fraction (i.e. 24/1 = 24 fps)
openshot::Fraction pixel_ratio
The pixel ratio of the video stream as a fraction (i.e. some pixels are not square)
std::string acodec
The name of the audio codec used to encode / decode the video stream.
openshot::Fraction display_ratio
The ratio of width to height of the video stream (i.e. 640x480 has a ratio of 4/3)
int channels
The number of audio channels used in the audio stream.
void Open()
Open File - which is called by the constructor automatically.
std::string Json() const override
Get and Set JSON methods.