OpenShot Library | libopenshot
0.1.9
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This class takes any reader and generates a special type of video file, built with chunks of small video and audio data. More...
#include <ChunkWriter.h>
Public Member Functions | |
ChunkWriter (string path, ReaderBase *reader) | |
Constructor for ChunkWriter. Throws one of the following exceptions. More... | |
void | Close () |
Close the writer. More... | |
int64_t | GetChunkSize () |
Get the chunk size (number of frames to write in each chunk) More... | |
bool | IsOpen () |
Determine if writer is open or closed. More... | |
void | Open () |
Open writer. More... | |
void | SetChunkSize (int64_t new_size) |
Set the chunk size (number of frames to write in each chunk) More... | |
void | WriteFrame (std::shared_ptr< Frame > frame) |
Add a frame to the stack waiting to be encoded. More... | |
void | WriteFrame (int64_t start, int64_t length) |
Write a block of frames from a reader. More... | |
void | WriteFrame (ReaderBase *reader, int64_t start, int64_t length) |
Write a block of frames from a reader. More... | |
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void | CopyReaderInfo (ReaderBase *reader) |
This method copy's the info struct of a reader, and sets the writer with the same info. More... | |
void | DisplayInfo () |
Display file information in the standard output stream (stdout) More... | |
string | Json () |
Get and Set JSON methods. More... | |
Json::Value | JsonValue () |
Generate Json::JsonValue for this object. More... | |
void | SetJson (string value) |
Load JSON string into this object. More... | |
void | SetJsonValue (Json::Value root) |
Load Json::JsonValue into this object. More... | |
WriterBase () | |
Constructor for WriterBase class, many things are initialized here. More... | |
Additional Inherited Members | |
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WriterInfo | info |
Information about the current media file. More... | |
This class takes any reader and generates a special type of video file, built with chunks of small video and audio data.
These chunks can easily be passed around in a distributed computing environment, without needing to share the entire video file. They also allow a chunk to be frame accurate, since seeking inaccuracies are removed.
Definition at line 80 of file ChunkWriter.h.
ChunkWriter::ChunkWriter | ( | string | path, |
ReaderBase * | reader | ||
) |
Constructor for ChunkWriter. Throws one of the following exceptions.
path | The folder path of the chunk file to be created |
reader | The initial reader to base this chunk file's meta data on (such as fps, height, width, etc...) |
Definition at line 32 of file ChunkWriter.cpp.
void ChunkWriter::Close | ( | ) |
Close the writer.
Definition at line 224 of file ChunkWriter.cpp.
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inline |
Get the chunk size (number of frames to write in each chunk)
Definition at line 122 of file ChunkWriter.h.
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inlinevirtual |
Determine if writer is open or closed.
Implements openshot::WriterBase.
Definition at line 125 of file ChunkWriter.h.
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virtual |
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inline |
Set the chunk size (number of frames to write in each chunk)
new_size | The number of frames to write in this chunk file |
Definition at line 132 of file ChunkWriter.h.
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virtual |
Add a frame to the stack waiting to be encoded.
frame | The openshot::Frame object that needs to be written to this chunk file. |
Implements openshot::WriterBase.
Definition at line 77 of file ChunkWriter.cpp.
void ChunkWriter::WriteFrame | ( | int64_t | start, |
int64_t | length | ||
) |
Write a block of frames from a reader.
start | The starting frame number to write (of the reader passed into the constructor) |
length | The number of frames to write (of the reader passed into the constructor) |
Definition at line 210 of file ChunkWriter.cpp.
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virtual |
Write a block of frames from a reader.
reader | The reader containing the frames you need |
start | The starting frame number to write |
length | The number of frames to write |
Implements openshot::WriterBase.
Definition at line 196 of file ChunkWriter.cpp.