Print sink that writes each frame it receives to a Muxer's video track via addVideoFrame(), determining a real isKeyFrame value instead of relying on that method's isKeyFrame=true default - via isH264KeyFrame() (Video.h) when the Muxer's video track is VideoFormat::H264, otherwise always true (correct for e.g. MJPEG, where every frame is independently decodable). More...

#include <ContainerCommon.h>

Inheritance diagram for MuxerVideoSink:

Public Member Functions
virtual int	availableForWrite ()

void	begin (Muxer &muxer)

virtual void	flush ()

size_t	write (const uint8_t *data, size_t len) override

size_t	write (uint8_t c) override

Protected Attributes
int	_timeout = 10

Muxer *	p_muxer = nullptr

Detailed Description

Print sink that writes each frame it receives to a Muxer's video track via addVideoFrame(), determining a real isKeyFrame value instead of relying on that method's isKeyFrame=true default - via isH264KeyFrame() (Video.h) when the Muxer's video track is VideoFormat::H264, otherwise always true (correct for e.g. MJPEG, where every frame is independently decodable).

Meant as the setOutput() target for a VideoEncoder whose write() would otherwise stream straight to the Muxer's own generic, format-dispatching write() (which has no isKeyFrame parameter at all) - or for any other already-encoded-frame producer that only has a plain Print to write to.

Author: Phil Schatzmann

Copyright: GPLv3

Member Function Documentation

◆ availableForWrite()

virtual int availableForWrite ( )

inlinevirtualinherited

Reimplemented in AudioESP32ULP, AudioLoRa, RTSPOutput< Platform >, SPIAudioMaster, UDPStream, VBANStream, AudioStreamWrapper, ConverterStream< T >, EncodedAudioOutput, EncodedAudioStream, FaustStream< DSP >, FileOutput, I2SCodecStream, MiniAudioStream, StdioStream, A2DPStream, AudioServerEx, AudioSyncWriter, ESPNowStream, HammingFEC< bytecount, block_t >, AbstractURLStream, URLStreamESP32, NRF24Stream, ReadioHeadStream, ReedSolomonFEC< bytecount, additional_bytes >, SPIAudioSlave, USBAudioDeviceBase, SynchronizedStream, AnalogAudioStream, AudioEffectStreamT< T >, AudioEffectStream, Equalizer3BandsT< T >, Equalizer3BandsPerChannelT< T >, I2SStream, ReformatBaseStream, AdapterAudioStreamToAudioOutput, TimedStream, AudioOutput, CsvOutput< T >, OutputMixer< T >, MemoryOutput, PWMAudioOutput< PWMDriverT >, MemoryStream, RingBufferStream, MeasuringStream, ProgressStream, Throttle, FilteredStream< T, TF >, FilteredStream< int16_t, int16_t >, ChannelFormatConverterStreamT< T >, ChannelFormatConverterStream, NumberFormatConverterStreamT< TFrom, TTo >, NumberFormatConverterStream, BaseStream, QueueStream< T >, QueueStream< uint8_t >, DynamicMemoryStream, FadeStream, FrequencyDetectorAutoCorrelation, FrequencyDetectorZeroCrossing, Pipeline, QualityAnalysisStream, VolumeStream, AudioFFTBase, AudioBLEClient, AudioBLEClient, AudioBLEServer, and AudioBLEServer.

◆ begin()

void begin ( Muxer & muxer )

inline

◆ flush()

virtual void flush ( )

inlinevirtualinherited

◆ write() [1/2]

size_t write	(	const uint8_t *	data,
		size_t	len
	)

inlineoverridevirtual

Reimplemented from Print.

◆ write() [2/2]

size_t write ( uint8_t c )

inlineoverride

Member Data Documentation

◆ _timeout

int _timeout = 10

protectedinherited

◆ p_muxer

Muxer* p_muxer = nullptr

protected

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

src/AudioTools/AudioCodecs/ContainerCommon.h

Public Member Functions

Protected Attributes