31 #ifndef OPENSHOT_READER_BASE_H
32 #define OPENSHOT_READER_BASE_H
46 #include <QtCore/qstring.h>
47 #include <QGraphicsItem>
48 #include <QGraphicsScene>
49 #include <QGraphicsPixmapItem>
120 virtual void Close() = 0;
134 virtual std::shared_ptr<openshot::Frame>
GetFrame(int64_t number) = 0;
137 virtual bool IsOpen() = 0;
140 virtual std::string
Name() = 0;
143 virtual std::string
Json()
const = 0;
144 virtual void SetJson(
const std::string value) = 0;
145 virtual Json::Value
JsonValue()
const = 0;
149 virtual void Open() = 0;
Header file for Fraction class.
Header file for ClipBase class.
int width
The width of the video (in pixesl)
ReaderBase()
Constructor for the base reader, where many things are initialized.
float duration
Length of time (in seconds)
virtual void Close()=0
Close the reader (and any resources it was consuming)
This abstract class is the base class, used by all readers in libopenshot.
bool has_video
Determines if this file has a video stream.
Header file for CacheMemory class.
int64_t file_size
Size of file (in bytes)
virtual std::shared_ptr< openshot::Frame > GetFrame(int64_t number)=0
int audio_bit_rate
The bit rate of the audio stream (in bytes)
virtual openshot::CacheBase * GetCache()=0
Get the cache object used by this reader (note: not all readers use cache)
bool has_audio
Determines if this file has an audio stream.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
Header file for Frame class.
int audio_stream_index
The index of the audio stream.
int64_t video_length
The number of frames in the video stream.
virtual std::string Json() const =0
Get and Set JSON methods.
juce::CriticalSection processingCriticalSection
int height
The height of the video (in pixels)
virtual ~ReaderBase()=default
openshot::Fraction video_timebase
The video timebase determines how long each frame stays on the screen.
virtual void SetJson(const std::string value)=0
Load JSON string into this object.
Header file for JSON class.
This class represents a fraction.
Header file for ZeroMQ-based Logger class.
std::map< std::string, std::string > metadata
An optional map/dictionary of metadata for this reader.
This struct contains info about a media file, such as height, width, frames per second, etc...
openshot::ChannelLayout channel_layout
The channel layout (mono, stereo, 5 point surround, etc...)
juce::CriticalSection getFrameCriticalSection
Section lock for multiple threads.
Header file for ChannelLayout class.
All cache managers in libopenshot are based on this CacheBase class.
bool has_single_image
Determines if this file only contains a single image.
ChannelLayout
This enumeration determines the audio channel layout (such as stereo, mono, 5 point surround...
This abstract class is the base class, used by all clips in libopenshot.
openshot::ClipBase * parent
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
openshot::ReaderInfo info
Information about the current media file.
openshot::Fraction audio_timebase
The audio timebase determines how long each audio packet should be played.
std::string vcodec
The name of the video codec used to encode / decode the video stream.
This namespace is the default namespace for all code in the openshot library.
openshot::ClipBase * GetClip()
Parent clip object of this reader (which can be unparented and NULL)
int pixel_format
The pixel format (i.e. YUV420P, RGB24, etc...)
openshot::Fraction display_ratio
The ratio of width to height of the video stream (i.e. 640x480 has a ratio of 4/3) ...
virtual std::string Name()=0
Return the type name of the class.
int video_bit_rate
The bit rate of the video stream (in bytes)
openshot::Fraction pixel_ratio
The pixel ratio of the video stream as a fraction (i.e. some pixels are not square) ...
void DisplayInfo()
Display file information in the standard output stream (stdout)
int channels
The number of audio channels used in the audio stream.
int video_stream_index
The index of the video stream.
void SetClip(openshot::ClipBase *clip)
Set parent clip object of this reader.
openshot::Fraction fps
Frames per second, as a fraction (i.e. 24/1 = 24 fps)
std::string acodec
The name of the audio codec used to encode / decode the video stream.
virtual void Open()=0
Open the reader (and start consuming resources, such as images or video files)
int sample_rate
The number of audio samples per second (44100 is a common sample rate)
virtual bool IsOpen()=0
Determine if reader is open or closed.