Open CASCADE Technology 7.8.2.dev
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AVFormatContext wrapper - the media input/output stream holder. More...
#include <Media_FormatContext.hxx>
Public Member Functions | |
Media_FormatContext () | |
Constructor. | |
virtual | ~Media_FormatContext () |
Destructor. | |
AVFormatContext * | Context () const |
Return context. | |
bool | OpenInput (const TCollection_AsciiString &theInput) |
Open input. | |
void | Close () |
Close input. | |
unsigned int | NbSteams () const |
Return amount of streams. | |
const AVStream & | Stream (unsigned int theIndex) const |
Return stream. | |
TCollection_AsciiString | StreamInfo (unsigned int theIndex, AVCodecContext *theCodecCtx=NULL) const |
Format stream info. | |
double | PtsStartBase () const |
Return PTS start base in seconds. | |
double | Duration () const |
Return duration in seconds. | |
bool | ReadPacket (const Handle< Media_Packet > &thePacket) |
av_read_frame() wrapper. | |
bool | SeekStream (unsigned int theStreamId, double theSeekPts, bool toSeekBack) |
Seek stream to specified position. | |
bool | Seek (double theSeekPts, bool toSeekBack) |
Seek context to specified position. | |
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. | |
Static Public Member Functions | |
static TCollection_AsciiString | FormatAVErrorDescription (int theErrCodeAV) |
Returns string description for AVError code. | |
static double | FormatUnitsToSeconds (int64_t theTimeUnits) |
Convert time units into seconds for context. | |
static double | UnitsToSeconds (const AVRational &theTimeBase, int64_t theTimeUnits) |
Convert time units into seconds. Returns zero for invalid value. | |
static double | StreamUnitsToSeconds (const AVStream &theStream, int64_t theTimeUnits) |
Convert time units into seconds using stream base. | |
static int64_t | SecondsToUnits (double theTimeSeconds) |
Convert seconds into time units for context. | |
static int64_t | SecondsToUnits (const AVRational &theTimeBase, double theTimeSeconds) |
Convert seconds into time units. | |
static int64_t | StreamSecondsToUnits (const AVStream &theStream, double theTimeSeconds) |
Convert seconds into time units for stream. | |
static TCollection_AsciiString | FormatTime (double theSeconds) |
Time formatter. | |
static TCollection_AsciiString | FormatTimeProgress (double theProgress, double theDuration) |
Time progress / duration formatter. | |
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. | |
Protected Attributes | |
AVFormatContext * | myFormatCtx |
format context | |
double | myPtsStartBase |
start time | |
double | myDuration |
duration | |
Additional Inherited Members | |
Public Types inherited from Standard_Transient | |
typedef void | base_type |
Returns a type descriptor about this object. | |
AVFormatContext wrapper - the media input/output stream holder.
Media_FormatContext::Media_FormatContext | ( | ) |
Constructor.
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virtual |
Destructor.
void Media_FormatContext::Close | ( | ) |
Close input.
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inline |
Return context.
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inline |
Return duration in seconds.
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static |
Returns string description for AVError code.
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static |
Time formatter.
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static |
Time progress / duration formatter.
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static |
Convert time units into seconds for context.
theTimeUnits | value to convert |
unsigned int Media_FormatContext::NbSteams | ( | ) | const |
Return amount of streams.
bool Media_FormatContext::OpenInput | ( | const TCollection_AsciiString & | theInput | ) |
Open input.
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inline |
Return PTS start base in seconds.
bool Media_FormatContext::ReadPacket | ( | const Handle< Media_Packet > & | thePacket | ) |
av_read_frame() wrapper.
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static |
Convert seconds into time units.
theTimeBase | the timebase |
theTimeSeconds | value to convert |
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static |
Convert seconds into time units for context.
theTimeSeconds | value to convert |
bool Media_FormatContext::Seek | ( | double | theSeekPts, |
bool | toSeekBack ) |
Seek context to specified position.
bool Media_FormatContext::SeekStream | ( | unsigned int | theStreamId, |
double | theSeekPts, | ||
bool | toSeekBack ) |
Seek stream to specified position.
const AVStream & Media_FormatContext::Stream | ( | unsigned int | theIndex | ) | const |
Return stream.
TCollection_AsciiString Media_FormatContext::StreamInfo | ( | unsigned int | theIndex, |
AVCodecContext * | theCodecCtx = NULL ) const |
Format stream info.
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static |
Convert seconds into time units for stream.
theStream | the stream |
theTimeSeconds | value to convert |
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Convert time units into seconds using stream base.
theStream | the stream; |
theTimeUnits | value to convert; |
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static |
Convert time units into seconds. Returns zero for invalid value.
theTimeBase | the timebase |
theTimeUnits | value to convert |
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protected |
duration
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protected |
format context
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protected |
start time