Inheritance diagram for com::avpkit::core::BufferSink:

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Collaboration diagram for com::avpkit::core::BufferSink:

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Public Member Functions
virtual int	getSampleRate ()
	Returns the sample rate of output filtered samples. More...

virtual int	getChannels ()
	Returns the channel number of output filtered samples. More...

virtual int	getWidth ()
	Returns the width of output filtered picture. More...

virtual int	getHeight ()
	Returns the height of output filtered picture. More...

virtual IRational *	getFrameRate ()
	Returns the frame rate output filtered picture. More...

virtual IRational *	getTimeBase ()
	Returns the frame rate output filtered picture. More...

virtual void	setNumSamples (int frameSize)
	Sets the number of samples for each output filtered samples. More...

virtual int	fillAudioSamples (IAudioSamples *samples)
	Fills this audio samples with filtered data. More...

virtual int	fillVideoPicture (IVideoPicture *picture)
	Fills this video picture with filtered data. More...

virtual void	setReady ()

Public Member Functions inherited from com::avpkit::ferry::RefCounted
virtual int32_t	acquire ()
	Internal Only. More...

virtual int32_t	release ()
	Internal Only. More...

virtual RefCounted *	copyReference ()
	Create a new Java object that refers to the same native object. More...

virtual int32_t	getCurrentRefCount ()
	Return the current reference count on this object. More...

void	setJavaAllocator (void *allocator)
	This method is public but not part of the standard API. More...

void *	getJavaAllocator ()
	This method is public but not part of the standard API. More...

Public Member Functions inherited from com::avpkit::core::MediaFilter
virtual int	setIntProperty (const char *name, int value)
	Sets an integer parameter for this filter. More...

virtual int	setDoubleProperty (const char *name, double value)
	Sets a double parameter for this filter. More...

virtual int	setProperty (const char name, const char value)
	Sets a string parameter for this filter. More...

virtual int	setRationalProperty (const char name, IRational value)
	Sets a rational parameter for this filter. More...

virtual int	initFilter ()
	Initialize filter. More...

virtual int	addFilter (IMediaFilter *filter)
	Add a filter as an output of this filter. More...

virtual int	addSink (IBufferSink *filterSink)
	Add a filter as an output of this filter. More...

Static Public Member Functions
static BufferSink *	make (AVFilterGraph *, IAudioSamples::ChannelLayout channel_layout)

static BufferSink *	make (AVFilterGraph *, IPixelFormat::Type pixel_type)

Static Public Member Functions inherited from com::avpkit::core::MediaFilter
static MediaFilter *	make (AVFilterGraph graph, const char name)

Additional Inherited Members
Protected Member Functions inherited from com::avpkit::ferry::RefCounted
virtual void	destroy ()
	This method is called by RefCounted objects when their Ref Count reaches zero and they are about to be destroyed.

Protected Member Functions inherited from com::avpkit::core::MediaFilter
int	getAvailableInput ()

int	getAvailableOutput ()

AVFilterContext *	getAVFilter ()

Protected Attributes inherited from com::avpkit::ferry::RefCounted
AtomicInteger *	mRefCount
	This is the internal reference count, represented as an AtomicInteger to make sure it is thread safe.

void *	mAllocator
	Not part of public API.

Protected Attributes inherited from com::avpkit::core::MediaFilter
const AVFilter *	mFilter

AVFilterContext *	mFilterContext

bool	ready

Detailed Description

Definition at line 41 of file BufferSink.h.

Member Function Documentation

◆ fillAudioSamples()

int com::avpkit::core::BufferSink::fillAudioSamples ( IAudioSamples * samples )

virtual

Fills this audio samples with filtered data.

Parameters

samples the audio samples filled with filtered data

Returns: 0 on success or <0 if an error occurs

Implements com::avpkit::core::IBufferSink.

Definition at line 76 of file BufferSink.cpp.

                                                                    {
                 int retval = -1;
                 if (!ready) {
                     return -1;
                 }
                 if (samples) {
                     AudioSamples* outSamples = static_cast<AudioSamples*> (samples);
                     if (outSamples) {
                         outSamples->setComplete(false, 0, outSamples->getSampleRate(), outSamples->getChannels(), outSamples->getChannelLayout(),
                                 IAudioSamples::FMT_S16, 0);
                         AVFrame* frame = av_frame_alloc();
                         if (frame) {
                             retval = av_buffersink_get_frame(mSinkFilterContext, frame);
                             if (retval == AVERROR(EAGAIN)) {
                                 //VS_LOG_WARN("No data available retry later");
                             } else if (retval >= 0) {
                                 int buffer_size;
                                 buffer_size = av_samples_get_buffer_size(NULL, frame->channels, frame->nb_samples, (AVSampleFormat) frame->format, 0);
                                 outSamples->ensureCapacity(buffer_size);
                                 memcpy(outSamples->getRawSamples(0), frame->extended_data[0], buffer_size);
                                 IRational* timeBase = outSamples->getTimeBase();
                                 outSamples->setComplete(true,
                                         frame->nb_samples,
                                         frame->sample_rate,
                                         frame->channels,
                                         (IAudioSamples::ChannelLayout)frame->channel_layout,
                                         IAudioSamples::FMT_S16,
                                         timeBase->rescale(frame->pts, mTimeBase.value()));
                                 VS_REF_RELEASE(timeBase);
                             }
                             av_frame_free(&frame);
                         }
                     }
                 }
                 return retval;
             }

References com::avpkit::core::AudioSamples::ensureCapacity(), com::avpkit::core::IAudioSamples::FMT_S16, com::avpkit::core::AudioSamples::getChannels(), com::avpkit::core::AudioSamples::getSampleRate(), com::avpkit::core::AudioSamples::getTimeBase(), com::avpkit::core::IRational::rescale(), and com::avpkit::core::AudioSamples::setComplete().

◆ fillVideoPicture()

int com::avpkit::core::BufferSink::fillVideoPicture ( IVideoPicture * picture )

virtual

Fills this video picture with filtered data.

Parameters

samples the video picture filled with filtered data

Returns: 0 on success or <0 if an error occurs

Implements com::avpkit::core::IBufferSink.

Definition at line 113 of file BufferSink.cpp.

                                                                    {
                 int retval = -1;
                 if (!ready) {
                     return -1;
                 }
                 if (picture) {
                     VideoPicture* outPicture = static_cast<VideoPicture*> (picture);
  
                     if (picture) {
                         outPicture->setComplete(false, IPixelFormat::NONE, outPicture->getWidth(), outPicture->getHeight(), 0);
                         AVFrame* frame = av_frame_alloc();
                         if (frame) {
                             retval = av_buffersink_get_frame(mSinkFilterContext, frame);
                             if (retval == AVERROR(EAGAIN)) {
                                 //VS_LOG_WARN("No data available retry later");
                             } else if (retval >= 0) {
                                 outPicture->copyAVFrame(frame, (IPixelFormat::Type)frame->format, frame->width, frame->height);
                                 IRational* timeBase = outPicture->getTimeBase();
                                 outPicture->setComplete(true, 
                                         (IPixelFormat::Type)frame->format, 
                                         frame->width, 
                                         frame->height, 
                                         timeBase->rescale(frame->pts, mTimeBase.value()));
                                 VS_REF_RELEASE(timeBase);
                             }
                             av_frame_free(&frame);
                         }
                     }
                 }
                 return retval;
             }

References com::avpkit::core::VideoPicture::copyAVFrame(), com::avpkit::core::VideoPicture::getHeight(), com::avpkit::core::VideoPicture::getTimeBase(), com::avpkit::core::VideoPicture::getWidth(), com::avpkit::core::IRational::rescale(), and com::avpkit::core::VideoPicture::setComplete().

◆ getChannels()

int com::avpkit::core::BufferSink::getChannels ( )

virtual

Returns the channel number of output filtered samples.

Returns: the channel number

Implements com::avpkit::core::IBufferSink.

Definition at line 41 of file BufferSink.cpp.

                                         {
                 return av_buffersink_get_channels(mSinkFilterContext);
             }

◆ getFrameRate()

IRational * com::avpkit::core::BufferSink::getFrameRate ( )

virtual

Returns the frame rate output filtered picture.

Returns: the frame rate

Implements com::avpkit::core::IBufferSink.

Definition at line 57 of file BufferSink.cpp.

                                                 {
                 AVRational frameRate = av_buffersink_get_frame_rate(mSinkFilterContext);
                 return IRational::make(frameRate.num, frameRate.den);
             }

References com::avpkit::core::IRational::make().

◆ getHeight()

int com::avpkit::core::BufferSink::getHeight ( )

virtual

Returns the height of output filtered picture.

Returns: the height

Implements com::avpkit::core::IBufferSink.

Definition at line 53 of file BufferSink.cpp.

                                       {
                 return av_buffersink_get_h(mSinkFilterContext);
             }

◆ getSampleRate()

int com::avpkit::core::BufferSink::getSampleRate ( )

virtual

Returns the sample rate of output filtered samples.

Returns: the sample rate

Implements com::avpkit::core::IBufferSink.

Definition at line 45 of file BufferSink.cpp.

                                           {
                 return av_buffersink_get_sample_rate(mSinkFilterContext);
             }

◆ getTimeBase()

IRational * com::avpkit::core::BufferSink::getTimeBase ( )

virtual

Returns the frame rate output filtered picture.

Returns: the frame rate

Implements com::avpkit::core::IBufferSink.

Definition at line 62 of file BufferSink.cpp.

                                                {
                 AVRational frameRate = av_buffersink_get_time_base(mSinkFilterContext);
                 return IRational::make(frameRate.num, frameRate.den);
             }

References com::avpkit::core::IRational::make().

◆ getWidth()

int com::avpkit::core::BufferSink::getWidth ( )

virtual

Returns the width of output filtered picture.

Returns: the width

Implements com::avpkit::core::IBufferSink.

Definition at line 49 of file BufferSink.cpp.

                                      {
                 return av_buffersink_get_w(mSinkFilterContext);
             }

◆ setNumSamples()

void com::avpkit::core::BufferSink::setNumSamples ( int frameSize )

virtual

Sets the number of samples for each output filtered samples.

The last buffer will be padded with 0.

Parameters

frameSize the number of samples of output

Implements com::avpkit::core::IBufferSink.

Definition at line 67 of file BufferSink.cpp.

                                                         {
                 av_buffersink_set_frame_size(mSinkFilterContext, frameSize);
             }

The documentation for this class was generated from the following files:

csrc/com/avpkit/core/BufferSink.h
csrc/com/avpkit/core/BufferSink.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ fillAudioSamples()

◆ fillVideoPicture()

◆ getChannels()

◆ getFrameRate()

◆ getHeight()

◆ getSampleRate()

◆ getTimeBase()

◆ getWidth()

◆ setNumSamples()