Open CASCADE Technology 7.8.2.dev
|
Video recording tool based on FFmpeg framework. More...
#include <Image_VideoRecorder.hxx>
Data Structures | |
struct | VideoRational |
AVRational alias. More... | |
Public Member Functions | |
Image_VideoRecorder () | |
Empty constructor. | |
virtual | ~Image_VideoRecorder () |
Destructor. | |
void | Close () |
Close the stream - stop recorder. | |
Standard_Boolean | Open (const char *theFileName, const Image_VideoParams &theParams) |
Open output stream - initialize recorder. | |
Image_PixMap & | ChangeFrame () |
Access RGBA frame, should NOT be re-initialized outside. Note that image is expected to have upper-left origin. | |
int64_t | FrameCount () const |
Return current frame index. | |
Standard_Boolean | PushFrame () |
Push new frame, should be called after Open(). | |
Public Member Functions inherited from Standard_Transient | |
Standard_Transient () | |
Empty constructor. | |
Standard_Transient (const Standard_Transient &) | |
Copy constructor – does nothing. | |
Standard_Transient & | operator= (const Standard_Transient &) |
Assignment operator, needed to avoid copying reference counter. | |
virtual | ~Standard_Transient () |
Destructor must be virtual. | |
virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
Returns a type descriptor about this object. | |
Standard_Boolean | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
Returns a true value if this is an instance of Type. | |
Standard_Boolean | IsInstance (const Standard_CString theTypeName) const |
Returns a true value if this is an instance of TypeName. | |
Standard_Boolean | IsKind (const opencascade::handle< Standard_Type > &theType) const |
Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. | |
Standard_Boolean | IsKind (const Standard_CString theTypeName) const |
Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. | |
Standard_Transient * | This () const |
Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. | |
Standard_Integer | GetRefCount () const noexcept |
Get the reference counter of this object. | |
void | IncrementRefCounter () noexcept |
Increments the reference counter of this object. | |
Standard_Integer | DecrementRefCounter () noexcept |
Decrements the reference counter of this object; returns the decremented value. | |
virtual void | Delete () const |
Memory deallocator for transient classes. | |
Protected Member Functions | |
TCollection_AsciiString | formatAvError (const int theError) const |
Wrapper for av_strerror(). | |
Standard_Boolean | addVideoStream (const Image_VideoParams &theParams, const Standard_Integer theDefCodecId) |
Append video stream. theParams [in] video parameters theDefCodecId [in] identifier of codec managed by FFmpeg library (AVCodecID enum) | |
Standard_Boolean | openVideoCodec (const Image_VideoParams &theParams) |
Open video codec. | |
Standard_Boolean | writeVideoFrame (const Standard_Boolean theToFlush) |
Write new video frame. | |
Protected Attributes | |
AVFormatContext * | myAVContext |
video context | |
AVStream * | myVideoStream |
video stream | |
AVCodec * | myVideoCodec |
video codec | |
AVFrame * | myFrame |
frame to record | |
SwsContext * | myScaleCtx |
scale context for conversion from RGBA to YUV | |
Image_PixMap | myImgSrcRgba |
input RGBA image | |
VideoRational | myFrameRate |
video framerate | |
int64_t | myFrameCount |
current frame index | |
Additional Inherited Members | |
Public Types inherited from Standard_Transient | |
typedef void | base_type |
Returns a type descriptor about this object. | |
Static Public Member Functions inherited from Standard_Transient | |
static constexpr const char * | get_type_name () |
Returns a type descriptor about this object. | |
static const opencascade::handle< Standard_Type > & | get_type_descriptor () |
Returns type descriptor of Standard_Transient class. | |
Video recording tool based on FFmpeg framework.
Image_VideoRecorder::Image_VideoRecorder | ( | ) |
Empty constructor.
|
virtual |
Destructor.
|
protected |
Append video stream. theParams [in] video parameters theDefCodecId [in] identifier of codec managed by FFmpeg library (AVCodecID enum)
|
inline |
Access RGBA frame, should NOT be re-initialized outside. Note that image is expected to have upper-left origin.
void Image_VideoRecorder::Close | ( | ) |
Close the stream - stop recorder.
|
protected |
Wrapper for av_strerror().
|
inline |
Return current frame index.
Standard_Boolean Image_VideoRecorder::Open | ( | const char * | theFileName, |
const Image_VideoParams & | theParams ) |
Open output stream - initialize recorder.
theFileName | [in] video filename |
theParams | [in] video parameters |
|
protected |
Open video codec.
|
inline |
Push new frame, should be called after Open().
|
protected |
Write new video frame.
|
protected |
video context
|
protected |
frame to record
|
protected |
current frame index
|
protected |
video framerate
|
protected |
input RGBA image
|
protected |
scale context for conversion from RGBA to YUV
|
protected |
video codec
|
protected |
video stream