QFFmpeg Namespace Reference

Classes
struct	AbstractAudioFrameConverter
class	AudioDecoder
class	AudioEncoder
class	AudioRenderer
class	AudioSourceIO
struct	AVAudioFormat
struct	AVDeleter
struct	AVDictionaryHolder
class	CancelToken
class	Codec
class	CodecContext
class	CodecIterator
class	ConsumerThread
	FFmpeg thread that is used to implement a consumer pattern. More...
class	Demuxer
class	EncoderThread
class	EncodingFormatContext
class	EncodingInitializer
struct	Frame
class	HWAccel
struct	HwFrameContextData
	The HwFrameContextData class contains custom belongings of hw frames context. More...
struct	ICancelToken
struct	LoopOffset
class	MediaCodecTextureConverter
class	MediaDataHolder
class	Muxer
struct	Packet
class	PlaybackEngine
class	PlaybackEngineObject
struct	QVideoFrameHolder
class	RecordingEngine
class	Renderer
class	SteppingAudioRenderer
class	StreamDecoder
class	SubtitleRenderer
class	TextureConverter
	The TextureConverter class implements conversion of AVFrame hw textures to textures for rendering by the specified QRhi. Any instance of TextureConverter matches the pair of FFmpeg hw frames context + QRhi. More...
class	TextureConverterBackend
	The base class for platform-specific implementations of TextureConverter One of two virtual methods, createTextures and createTextureHandles, must be overridden. If the implementation operates with QRhiTexture under the hood, overriding of createTextures is prefferable, otherwise expose texture handles of native textures by createTextureHandles. More...
class	TimeController
struct	ValueAndScore
class	VideoEncoder
class	VideoFrameEncoder
class	VideoRenderer

Typedefs
using	AvioWriteBufferType
using	AVFormatContextUPtr = std::unique_ptr<AVFormatContext, AVDeleter<decltype(&avformat_close_input), &avformat_close_input>>
using	HWAccelUPtr = std::unique_ptr<HWAccel>
using	AVFrameUPtr = std::unique_ptr<AVFrame, AVDeleter<decltype(&av_frame_free), &av_frame_free>>
using	AVPacketUPtr
using	AVCodecContextUPtr
using	AVBufferUPtr
using	AVHWFramesConstraintsUPtr
using	SwrContextUPtr = std::unique_ptr<SwrContext, AVDeleter<decltype(&swr_free), &swr_free>>
using	SwsContextUPtr
using	CodecEnumerator = CodecIterator
using	ChannelLayoutT = AVChannelLayout
using	TextureConverterBackendPtr = std::shared_ptr<TextureConverterBackend>
template<typename T>
using	ConsumerThreadUPtr = std::unique_ptr<T, ConsumerThread::Deleter>
using	ApplyOptions = void (*)(const QMediaEncoderSettings &settings, AVCodecContext *codec, AVDictionary **opts)
using	VideoFrameEncoderUPtr = std::unique_ptr<VideoFrameEncoder>
using	StreamIndexes = std::array<int, 3>
using	TrackPosition = QTaggedTimePoint<qint64, TrackTimeTag>
using	TrackDuration = QTaggedDuration<qint64, TrackTimeTag>
using	UserTrackPosition = QTaggedTimePoint<qint64, UserTrackTimeTag>
using	UserTrackDuration = QTaggedDuration<qint64, UserTrackTimeTag>
using	AVStreamPosition = QTaggedTimePoint<qint64, AVStreamTimeTag>
using	AVStreamDuration = QTaggedDuration<qint64, AVStreamTimeTag>
using	AVContextPosition = QTaggedTimePoint<qint64, AVContextTimeTag>
using	AVContextDuration = QTaggedDuration<qint64, AVContextTimeTag>
using	SteadyClock = std::chrono::steady_clock

Functions
std::unique_ptr< QFFmpegResampler >	createResampler (const Frame &frame, const QAudioFormat &outputFormat)
std::unique_ptr< AbstractAudioFrameConverter >	makeTrivialAudioFrameConverter (const Frame &frame, QAudioFormat outputFormat, float playbackRate)
std::unique_ptr< AbstractAudioFrameConverter >	makePitchShiftingAudioFrameConverter (const Frame &frame, QAudioFormat outputFormat, float playbackRate)
bool	findAndOpenAVDecoder (AVCodecID codecId, const std::function< AVScore(const Codec &)> &scoresGetter, const std::function< bool(const Codec &)> &codecOpener)
bool	findAndOpenAVEncoder (AVCodecID codecId, const std::function< AVScore(const Codec &)> &scoresGetter, const std::function< bool(const Codec &)> &codecOpener)
std::optional< Codec >	findAVDecoder (AVCodecID codecId, const std::optional< PixelOrSampleFormat > &format={})
std::optional< Codec >	findAVEncoder (AVCodecID codecId, const std::optional< PixelOrSampleFormat > &format={})
	Q_STATIC_LOGGING_CATEGORY (qLcDemuxer, "qt.multimedia.ffmpeg.demuxer")
static TrackPosition	packetEndPos (const Packet &packet, const AVStream *stream, const AVFormatContext *context)
static bool	isPacketWithinStreamDuration (const AVFormatContext *context, const Packet &packet)
static std::optional< TrackDuration >	streamDuration (const AVStream &stream)
static QTransform	displayMatrixToTransform (const int32_t *displayMatrix)
static VideoTransformation	streamTransformation (const AVStream *stream)
static bool	colorTransferSupportsHdr (const AVStream *stream)
static void	insertMediaData (QMediaMetaData &metaData, QPlatformMediaPlayer::TrackType trackType, const AVStream *stream)
int	readQIODevice (void *opaque, uint8_t *buf, int buf_size)
int	writeQIODevice (void *opaque, AvioWriteBufferType buf, int buf_size)
int64_t	seekQIODevice (void *opaque, int64_t offset, int whence)
	Q_STATIC_LOGGING_CATEGORY (qLcRenderer, "qt.multimedia.ffmpeg.renderer")
AVPixelFormat	getFormat (AVCodecContext *s, const AVPixelFormat *fmt)
AVFrameUPtr	copyFromHwPool (AVFrameUPtr frame)
bool	isAVFormatSupported (const Codec &codec, PixelOrSampleFormat format)
bool	isHwPixelFormat (AVPixelFormat format)
void	applyExperimentalCodecOptions (const Codec &codec, AVDictionary **opts)
AVPixelFormat	pixelFormatForHwDevice (AVHWDeviceType deviceType)
AVPacketSideData *	addStreamSideData (AVStream *stream, AVPacketSideData sideData)
const AVPacketSideData *	streamSideData (const AVStream *stream, AVPacketSideDataType type)
SwrContextUPtr	createResampleContext (const AVAudioFormat &inputFormat, const AVAudioFormat &outputFormat)
QVideoFrameFormat::ColorTransfer	fromAvColorTransfer (AVColorTransferCharacteristic colorTrc)
AVColorTransferCharacteristic	toAvColorTransfer (QVideoFrameFormat::ColorTransfer colorTrc)
QVideoFrameFormat::ColorSpace	fromAvColorSpace (AVColorSpace colorSpace)
AVColorSpace	toAvColorSpace (QVideoFrameFormat::ColorSpace colorSpace)
QVideoFrameFormat::ColorRange	fromAvColorRange (AVColorRange colorRange)
AVColorRange	toAvColorRange (QVideoFrameFormat::ColorRange colorRange)
AVHWDeviceContext *	avFrameDeviceContext (const AVFrame *frame)
SwsContextUPtr	createSwsContext (const QSize &srcSize, AVPixelFormat srcPixFmt, const QSize &dstSize, AVPixelFormat dstPixFmt, int conversionType)
std::optional< qint64 >	mul (qint64 a, AVRational b)
std::optional< qreal >	mul (qreal a, AVRational b)
std::optional< qint64 >	timeStampMs (qint64 ts, AVRational base)
std::optional< qint64 >	timeStampUs (qint64 ts, AVRational base)
std::optional< float >	toFloat (AVRational r)
QString	err2str (int errnum)
void	setAVFrameTime (AVFrame &frame, int64_t pts, const AVRational &timeBase)
void	getAVFrameTime (const AVFrame &frame, int64_t &pts, AVRational &timeBase)
int64_t	getAVFrameDuration (const AVFrame &frame)
AVFrameUPtr	makeAVFrame ()
template<typename Value>
bool	hasValue (QSpan< const Value > range, Value value)
template<typename Value, typename Predicate>
std::optional< Value >	findIf (QSpan< const Value > range, const Predicate &predicate)
template<typename Predicate>
std::optional< AVPixelFormat >	findAVPixelFormat (const Codec &codec, const Predicate &predicate)
template<typename Function>
void	forEachAVPixelFormat (const Codec &codec, const Function &function)
template<typename Value, typename CalculateScore, typename ScoreType = std::invoke_result_t<CalculateScore, Value>>
ValueAndScore< Value, ScoreType >	findBestAVValueWithScore (QSpan< const Value > values, const CalculateScore &calculateScore)
template<typename Value, typename CalculateScore>
std::optional< Value >	findBestAVValue (QSpan< const Value > values, const CalculateScore &calculateScore)
bool	isSwPixelFormat (AVPixelFormat format)
bool	operator== (const AVAudioFormat &lhs, const AVAudioFormat &rhs)
QDebug	operator<< (QDebug dbg, const AVAudioFormat &format)
bool	operator!= (const AVAudioFormat &lhs, const AVAudioFormat &rhs)
QSpan< const AVPixelFormat >	makeSpan (const AVPixelFormat *values)
	Q_STATIC_LOGGING_CATEGORY (qLcEncodingFormatContext, "qt.multimedia.ffmpeg.encodingformatcontext")
static AVBufferUPtr	loadHWContext (AVHWDeviceType type)
static bool	precheckDriver (AVHWDeviceType type)
static bool	checkHwType (AVHWDeviceType type)
static const std::vector< AVHWDeviceType > &	deviceTypes ()
static std::vector< AVHWDeviceType >	deviceTypes (const char *envVarName)
static bool	isNoConversionFormat (AVPixelFormat f)
static void	deleteHwFrameContextData (AVHWFramesContext *context)
AVFrameUPtr	copyFromHwPoolD3D11 (AVFrameUPtr src)
static const quint32 *	fourccFromPixelFormat (const QVideoFrameFormat::PixelFormat format)
static MTLPixelFormat	rhiTextureFormatToMetalFormat (QRhiTexture::Format f)
	Q_STATIC_LOGGING_CATEGORY (qLcPlaybackEngine, "qt.multimedia.ffmpeg.playbackengine")
template<typename Array>
static Array	defaultObjectsArray ()
	Q_STATIC_LOGGING_CATEGORY (qLcFFmpegAudioEncoder, "qt.multimedia.ffmpeg.audioencoder")
template<typename T>
T	dequeueIfPossible (std::queue< T > &queue)
void	setEncoderInterface (QObject *source, QMediaInputEncoderInterface *)
void	setEncoderUpdateConnection (QObject *source, EncoderThread *encoder)
template<typename Encoder, typename Source>
void	connectEncoderToSource (Encoder *encoder, Source *source)
void	disconnectEncoderFromSource (EncoderThread *encoder)
void	applyVideoEncoderOptions (const QMediaEncoderSettings &settings, const QByteArray &codecName, AVCodecContext *codec, AVDictionary **opts)
void	applyAudioEncoderOptions (const QMediaEncoderSettings &settings, const QByteArray &codecName, AVCodecContext *codec, AVDictionary **opts)
AVSampleFormat	adjustSampleFormat (QSpan< const AVSampleFormat > supportedFormats, AVSampleFormat requested)
int	adjustSampleRate (QSpan< const int > supportedRates, int requested)
static AVScore	calculateScoreByChannelsCount (int supportedChannelsNumber, int requestedChannelsNumber)
static AVScore	calculateScoreByChannelsMask (int supportedChannelsNumber, uint64_t supportedMask, int requestedChannelsNumber, uint64_t requestedMask)
ChannelLayoutT	adjustChannelLayout (QSpan< const ChannelLayoutT > supportedLayouts, const ChannelLayoutT &requested)
	Q_STATIC_LOGGING_CATEGORY (qLcFFmpegMuxer, "qt.multimedia.ffmpeg.muxer")
template<typename F>
static void	doWithMediaFrameInput (QObject *source, F &&f)
	Q_STATIC_LOGGING_CATEGORY (qLcFFmpegVideoEncoder, "qt.multimedia.ffmpeg.videoencoder")
static void	freeQVideoFrame (void *opaque, uint8_t *)
static AVScore	calculateTargetSwFormatScore (const AVPixFmtDescriptor *sourceSwFormatDesc, AVPixelFormat fmt, const AVPixelFormatSet &prohibitedFormats)
static auto	targetSwFormatScoreCalculator (AVPixelFormat sourceFormat, std::reference_wrapper< const AVPixelFormatSet > prohibitedFormats)
static bool	isHwFormatAcceptedByCodec (AVPixelFormat pixFormat)
std::optional< AVPixelFormat >	findTargetSWFormat (AVPixelFormat sourceSWFormat, const Codec &codec, const HWAccel &accel, const AVPixelFormatSet &prohibitedFormats)
std::optional< AVPixelFormat >	findTargetFormat (AVPixelFormat sourceFormat, AVPixelFormat sourceSWFormat, const Codec &codec, const HWAccel *accel, const AVPixelFormatSet &prohibitedFormats)
AVScore	findSWFormatScores (const Codec &codec, AVPixelFormat sourceSWFormat)
AVRational	adjustFrameRate (QSpan< const AVRational > supportedRates, qreal requestedRate)
	adjustFrameRate get a rational frame rate be requested qreal rate. If the codec supports fixed frame rate (non-null supportedRates), the function selects the most suitable one, otherwise just makes AVRational from qreal.
AVRational	adjustFrameTimeBase (QSpan< const AVRational > supportedRates, AVRational frameRate)
	adjustFrameTimeBase gets adjusted timebase by a list of supported frame rates and an already adjusted frame rate.
QSize	adjustVideoResolution (const Codec &codec, QSize requestedResolution)
int	getScaleConversionType (const QSize &sourceSize, const QSize &targetSize)
AVContextDuration	contextStartOffset (const AVFormatContext *formatContext)
UserTrackPosition	toUserPosition (TrackPosition trackPosition)
UserTrackDuration	toUserDuration (TrackDuration trackDuration)
TrackDuration	toTrackDuration (AVContextDuration contextDuration)
TrackPosition	toTrackPosition (UserTrackPosition userTrackPosition)
TrackDuration	toTrackDuration (UserTrackDuration userTrackDuration)
TrackDuration	toTrackDuration (AVStreamDuration streamDuration, const AVStream *avStream)
TrackPosition	toTrackPosition (AVStreamPosition streamPosition, const AVStream *avStream, const AVFormatContext *formatContext)
AVContextPosition	toContextPosition (TrackPosition trackPosition, const AVFormatContext *formatContext)

Variables
static constexpr TrackDuration	MaxBufferedDurationUs { 4'000'000 }
static constexpr qint64	MaxBufferedSize = 32 * 1024 * 1024
static QAtomicInteger< PlaybackEngineObject::Id >	PersistentId = 0
static const std::initializer_list< AVHWDeviceType >	preferredHardwareAccelerators
static constexpr bool	shouldPauseStreams = false
constexpr qint64	VideoFrameTimeBase = 1000000
struct {
const char *   QFFmpeg::name
ApplyOptions   QFFmpeg::apply
}	videoCodecOptionTable []
struct {
const char *   QFFmpeg::name
ApplyOptions   QFFmpeg::apply
}	audioCodecOptionTable []

Typedef Documentation

ApplyOptions

typedef void(* QFFmpeg::ApplyOptions)(const QMediaEncoderSettings &settings, AVCodecContext *codec, AVDictionary **opts) = void (*)(const QMediaEncoderSettings &settings, AVCodecContext *codec, AVDictionary **opts)

Definition at line 304 of file qffmpegencoderoptions.cpp.

AVBufferUPtr

using QFFmpeg::AVBufferUPtr

Initial value:

 
        std::unique_ptr<AVBufferRef, AVDeleter<decltype(&av_buffer_unref), &av_buffer_unref>>

Definition at line 164 of file qffmpeg_p.h.

AVCodecContextUPtr

using QFFmpeg::AVCodecContextUPtr

Initial value:

 
        std::unique_ptr<AVCodecContext,
                        AVDeleter<decltype(&avcodec_free_context), &avcodec_free_context>>

Definition at line 160 of file qffmpeg_p.h.

AVContextDuration

using QFFmpeg::AVContextDuration = QTaggedDuration<qint64, AVContextTimeTag>

Definition at line 51 of file qffmpegtime_p.h.

AVContextPosition

using QFFmpeg::AVContextPosition = QTaggedTimePoint<qint64, AVContextTimeTag>

Definition at line 50 of file qffmpegtime_p.h.

AVFormatContextUPtr

using QFFmpeg::AVFormatContextUPtr = std::unique_ptr<AVFormatContext, AVDeleter<decltype(&avformat_close_input), &avformat_close_input>>

Definition at line 38 of file qffmpegmediadataholder_p.h.

AVFrameUPtr

using QFFmpeg::AVFrameUPtr = std::unique_ptr<AVFrame, AVDeleter<decltype(&av_frame_free), &av_frame_free>>

Definition at line 150 of file qffmpeg_p.h.

AVHWFramesConstraintsUPtr

using QFFmpeg::AVHWFramesConstraintsUPtr

Initial value:

 std::unique_ptr<
        AVHWFramesConstraints,
        AVDeleter<decltype(&av_hwframe_constraints_free), &av_hwframe_constraints_free>>

Definition at line 167 of file qffmpeg_p.h.

AvioWriteBufferType

using QFFmpeg::AvioWriteBufferType

Initial value:

 
        std::conditional_t<QT_FFMPEG_AVIO_WRITE_CONST, const uint8_t *, uint8_t *>

Definition at line 29 of file qffmpegioutils_p.h.

AVPacketUPtr

using QFFmpeg::AVPacketUPtr

Initial value:

 
        std::unique_ptr<AVPacket, AVDeleter<decltype(&av_packet_free), &av_packet_free>>

Definition at line 157 of file qffmpeg_p.h.

AVStreamDuration

using QFFmpeg::AVStreamDuration = QTaggedDuration<qint64, AVStreamTimeTag>

Definition at line 45 of file qffmpegtime_p.h.

AVStreamPosition

using QFFmpeg::AVStreamPosition = QTaggedTimePoint<qint64, AVStreamTimeTag>

Definition at line 44 of file qffmpegtime_p.h.

ChannelLayoutT

using QFFmpeg::ChannelLayoutT = AVChannelLayout

Definition at line 57 of file qffmpegdefs_p.h.

CodecEnumerator

using QFFmpeg::CodecEnumerator = CodecIterator

Definition at line 74 of file qffmpegcodec_p.h.

ConsumerThreadUPtr

template<typename T>

using QFFmpeg::ConsumerThreadUPtr = std::unique_ptr<T, ConsumerThread::Deleter>

Definition at line 97 of file qffmpegthread_p.h.

HWAccelUPtr

using QFFmpeg::HWAccelUPtr = std::unique_ptr<HWAccel>

Definition at line 42 of file qffmpeghwaccel_p.h.

SteadyClock

using QFFmpeg::SteadyClock = std::chrono::steady_clock

Definition at line 53 of file qffmpegtime_p.h.

StreamIndexes

using QFFmpeg::StreamIndexes = std::array<int, 3>

Definition at line 31 of file qffmpegplaybackenginedefs_p.h.

SwrContextUPtr

using QFFmpeg::SwrContextUPtr = std::unique_ptr<SwrContext, AVDeleter<decltype(&swr_free), &swr_free>>

Definition at line 171 of file qffmpeg_p.h.

SwsContextUPtr

using QFFmpeg::SwsContextUPtr

Initial value:

 
        std::unique_ptr<SwsContext, AVDeleter<decltype(&sws_freeContext), &sws_freeContext>>

Definition at line 173 of file qffmpeg_p.h.

TextureConverterBackendPtr

using QFFmpeg::TextureConverterBackendPtr = std::shared_ptr<TextureConverterBackend>

Definition at line 63 of file qffmpegtextureconverter_p.h.

TrackDuration

using QFFmpeg::TrackDuration = QTaggedDuration<qint64, TrackTimeTag>

Definition at line 35 of file qffmpegtime_p.h.

TrackPosition

using QFFmpeg::TrackPosition = QTaggedTimePoint<qint64, TrackTimeTag>

Definition at line 34 of file qffmpegtime_p.h.

UserTrackDuration

using QFFmpeg::UserTrackDuration = QTaggedDuration<qint64, UserTrackTimeTag>

Definition at line 40 of file qffmpegtime_p.h.

UserTrackPosition

using QFFmpeg::UserTrackPosition = QTaggedTimePoint<qint64, UserTrackTimeTag>

Definition at line 39 of file qffmpegtime_p.h.

VideoFrameEncoderUPtr

using QFFmpeg::VideoFrameEncoderUPtr = std::unique_ptr<VideoFrameEncoder>

Definition at line 29 of file qffmpegvideoframeencoder_p.h.

Function Documentation

addStreamSideData()

AVPacketSideData * QFFmpeg::addStreamSideData	(	AVStream *	stream,
		AVPacketSideData	sideData )

Definition at line 90 of file qffmpeg.cpp.

adjustChannelLayout()

ChannelLayoutT QFFmpeg::adjustChannelLayout	(	QSpan< const ChannelLayoutT >	supportedLayouts,
		const ChannelLayoutT &	requested )

Definition at line 71 of file qffmpegaudioencoderutils.cpp.

adjustFrameRate()

AVRational QFFmpeg::adjustFrameRate	(	QSpan< const AVRational >	supportedRates,
		qreal	requestedRate )

adjustFrameRate get a rational frame rate be requested qreal rate. If the codec supports fixed frame rate (non-null supportedRates), the function selects the most suitable one, otherwise just makes AVRational from qreal.

Definition at line 167 of file qffmpegvideoencoderutils.cpp.

adjustFrameTimeBase()

AVRational QFFmpeg::adjustFrameTimeBase	(	QSpan< const AVRational >	supportedRates,
		AVRational	frameRate )

adjustFrameTimeBase gets adjusted timebase by a list of supported frame rates and an already adjusted frame rate.

Timebase is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented. For fixed-fps content (non-null supportedRates), timebase should be 1/framerate.

For more information, see AVStream::time_base and AVCodecContext::time_base.

The adjusted time base is supposed to be set to stream and codec context.

Definition at line 183 of file qffmpegvideoencoderutils.cpp.

adjustSampleFormat()

AVSampleFormat QFFmpeg::adjustSampleFormat	(	QSpan< const AVSampleFormat >	supportedFormats,
		AVSampleFormat	requested )

Definition at line 11 of file qffmpegaudioencoderutils.cpp.

adjustSampleRate()

int QFFmpeg::adjustSampleRate	(	QSpan< const int >	supportedRates,
		int	requested )

Definition at line 33 of file qffmpegaudioencoderutils.cpp.

adjustVideoResolution()

QSize QFFmpeg::adjustVideoResolution	(	const Codec &	codec,
		QSize	requestedResolution )

Definition at line 204 of file qffmpegvideoencoderutils.cpp.

applyAudioEncoderOptions()

void QFFmpeg::applyAudioEncoderOptions	(	const QMediaEncoderSettings &	settings,
		const QByteArray &	codecName,
		AVCodecContext *	codec,
		AVDictionary **	opts )

Definition at line 363 of file qffmpegencoderoptions.cpp.

applyExperimentalCodecOptions()

void QFFmpeg::applyExperimentalCodecOptions	(	const Codec &	codec,
		AVDictionary **	opts )

Definition at line 45 of file qffmpeg.cpp.

applyVideoEncoderOptions()

void QFFmpeg::applyVideoEncoderOptions	(	const QMediaEncoderSettings &	settings,
		const QByteArray &	codecName,
		AVCodecContext *	codec,
		AVDictionary **	opts )

Definition at line 348 of file qffmpegencoderoptions.cpp.

avFrameDeviceContext()

AVHWDeviceContext * QFFmpeg::avFrameDeviceContext

(

const AVFrame *

frame

)

Definition at line 290 of file qffmpeg.cpp.

calculateScoreByChannelsCount()

static AVScore QFFmpeg::calculateScoreByChannelsCount ( int supportedChannelsNumber, int requestedChannelsNumber )

static

Definition at line 51 of file qffmpegaudioencoderutils.cpp.

calculateScoreByChannelsMask()

static AVScore QFFmpeg::calculateScoreByChannelsMask ( int supportedChannelsNumber, uint64_t supportedMask, int requestedChannelsNumber, uint64_t requestedMask )

static

Definition at line 62 of file qffmpegaudioencoderutils.cpp.

calculateTargetSwFormatScore()

static AVScore QFFmpeg::calculateTargetSwFormatScore ( const AVPixFmtDescriptor * sourceSwFormatDesc, AVPixelFormat fmt, const AVPixelFormatSet & prohibitedFormats )

static

Definition at line 16 of file qffmpegvideoencoderutils.cpp.

checkHwType()

static bool QFFmpeg::checkHwType ( AVHWDeviceType type )

static

Definition at line 112 of file qffmpeghwaccel.cpp.

References FFmpegLogsEnabledInThread.

colorTransferSupportsHdr()

static bool QFFmpeg::colorTransferSupportsHdr ( const AVStream * stream )

static

Definition at line 100 of file qffmpegmediadataholder.cpp.

connectEncoderToSource()

template<typename Encoder, typename Source>

void QFFmpeg::connectEncoderToSource	(	Encoder *	encoder,
		Source *	source )

Definition at line 48 of file qffmpegrecordingengineutils_p.h.

contextStartOffset()

AVContextDuration QFFmpeg::contextStartOffset ( const AVFormatContext * formatContext )

inline

Definition at line 55 of file qffmpegtime_p.h.

copyFromHwPool()

AVFrameUPtr QFFmpeg::copyFromHwPool

(

AVFrameUPtr

frame

)

Definition at line 427 of file qffmpeghwaccel.cpp.

copyFromHwPoolD3D11()

AVFrameUPtr QFFmpeg::copyFromHwPoolD3D11

(

AVFrameUPtr

src

)

Definition at line 355 of file qffmpeghwaccel_d3d11.cpp.

createResampleContext()

SwrContextUPtr QFFmpeg::createResampleContext	(	const AVAudioFormat &	inputFormat,
		const AVAudioFormat &	outputFormat )

Definition at line 131 of file qffmpeg.cpp.

createResampler()

std::unique_ptr< QFFmpegResampler > QFFmpeg::createResampler	(	const Frame &	frame,
		const QAudioFormat &	outputFormat )

Definition at line 145 of file qffmpegaudioframeconverter.cpp.

createSwsContext()

SwsContextUPtr QFFmpeg::createSwsContext	(	const QSize &	srcSize,
		AVPixelFormat	srcPixFmt,
		const QSize &	dstSize,
		AVPixelFormat	dstPixFmt,
		int	conversionType = SWS_BICUBIC )

Definition at line 303 of file qffmpeg.cpp.

defaultObjectsArray()

template<typename Array>

static Array QFFmpeg::defaultObjectsArray ( )

inlinestatic

Definition at line 28 of file qffmpegplaybackengine.cpp.

deleteHwFrameContextData()

static void QFFmpeg::deleteHwFrameContextData ( AVHWFramesContext * context )

static

Definition at line 406 of file qffmpeghwaccel.cpp.

dequeueIfPossible()

template<typename T>

T QFFmpeg::dequeueIfPossible

(

std::queue< T > &

queue

)

Definition at line 33 of file qffmpegrecordingengineutils_p.h.

deviceTypes() [1/2]

static const std::vector< AVHWDeviceType > & QFFmpeg::deviceTypes ( )

static

Definition at line 141 of file qffmpeghwaccel.cpp.

deviceTypes() [2/2]

static std::vector< AVHWDeviceType > QFFmpeg::deviceTypes ( const char * envVarName )

static

Definition at line 182 of file qffmpeghwaccel.cpp.

disconnectEncoderFromSource()

void QFFmpeg::disconnectEncoderFromSource

(

EncoderThread *

encoder

)

Definition at line 47 of file qffmpegrecordingengineutils.cpp.

References setEncoderInterface(), and QFFmpeg::EncoderThread::source().

Referenced by QFFmpeg::RecordingEngine::finalize().

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displayMatrixToTransform()

static QTransform QFFmpeg::displayMatrixToTransform ( const int32_t * displayMatrix )

static

Definition at line 49 of file qffmpegmediadataholder.cpp.

doWithMediaFrameInput()

template<typename F>

static void QFFmpeg::doWithMediaFrameInput ( QObject * source, F && f )

static

Definition at line 14 of file qffmpegrecordingengineutils.cpp.

err2str()

QString QFFmpeg::err2str ( int errnum )

inline

Definition at line 75 of file qffmpeg_p.h.

findAndOpenAVDecoder()

bool QFFmpeg::findAndOpenAVDecoder	(	AVCodecID	codecId,
		const std::function< AVScore(const Codec &)> &	scoresGetter,
		const std::function< bool(const Codec &)> &	codecOpener )

Definition at line 395 of file qffmpegcodecstorage.cpp.

findAndOpenAVEncoder()

bool QFFmpeg::findAndOpenAVEncoder	(	AVCodecID	codecId,
		const std::function< AVScore(const Codec &)> &	scoresGetter,
		const std::function< bool(const Codec &)> &	codecOpener )

Definition at line 402 of file qffmpegcodecstorage.cpp.

findAVDecoder()

std::optional< Codec > QFFmpeg::findAVDecoder	(	AVCodecID	codecId,
		const std::optional< PixelOrSampleFormat > &	format = {} )

Definition at line 384 of file qffmpegcodecstorage.cpp.

findAVEncoder()

std::optional< Codec > QFFmpeg::findAVEncoder	(	AVCodecID	codecId,
		const std::optional< PixelOrSampleFormat > &	format = {} )

Definition at line 390 of file qffmpegcodecstorage.cpp.

findAVPixelFormat()

template<typename Predicate>

std::optional< AVPixelFormat > QFFmpeg::findAVPixelFormat	(	const Codec &	codec,
		const Predicate &	predicate )

Definition at line 204 of file qffmpeg_p.h.

findBestAVValue()

template<typename Value, typename CalculateScore>

std::optional< Value > QFFmpeg::findBestAVValue	(	QSpan< const Value >	values,
		const CalculateScore &	calculateScore )

Definition at line 267 of file qffmpeg_p.h.

findBestAVValueWithScore()

template<typename Value, typename CalculateScore, typename ScoreType = std::invoke_result_t<CalculateScore, Value>>

ValueAndScore< Value, ScoreType > QFFmpeg::findBestAVValueWithScore	(	QSpan< const Value >	values,
		const CalculateScore &	calculateScore )

Definition at line 248 of file qffmpeg_p.h.

findIf()

template<typename Value, typename Predicate>

std::optional< Value > QFFmpeg::findIf	(	QSpan< const Value >	range,
		const Predicate &	predicate )

Definition at line 190 of file qffmpeg_p.h.

findSWFormatScores()

AVScore QFFmpeg::findSWFormatScores	(	const Codec &	codec,
		AVPixelFormat	sourceSWFormat )

Definition at line 155 of file qffmpegvideoencoderutils.cpp.

findTargetFormat()

std::optional< AVPixelFormat > QFFmpeg::findTargetFormat	(	AVPixelFormat	sourceFormat,
		AVPixelFormat	sourceSWFormat,
		const Codec &	codec,
		const HWAccel *	accel,
		const AVPixelFormatSet &	prohibitedFormats = {} )

Definition at line 119 of file qffmpegvideoencoderutils.cpp.

findTargetSWFormat()

std::optional< AVPixelFormat > QFFmpeg::findTargetSWFormat	(	AVPixelFormat	sourceSWFormat,
		const Codec &	codec,
		const HWAccel &	accel,
		const AVPixelFormatSet &	prohibitedFormats = {} )

Definition at line 101 of file qffmpegvideoencoderutils.cpp.

forEachAVPixelFormat()

template<typename Function>

void QFFmpeg::forEachAVPixelFormat	(	const Codec &	codec,
		const Function &	function )

Definition at line 231 of file qffmpeg_p.h.

fourccFromPixelFormat()

static const quint32 * QFFmpeg::fourccFromPixelFormat ( const QVideoFrameFormat::PixelFormat format )

static

Definition at line 68 of file qffmpeghwaccel_vaapi.cpp.

freeQVideoFrame()

static void QFFmpeg::freeQVideoFrame ( void * opaque, uint8_t *  )

static

Definition at line 141 of file qffmpegvideoencoder.cpp.

Referenced by QFFmpeg::VideoEncoder::processOne().

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fromAvColorRange()

QVideoFrameFormat::ColorRange QFFmpeg::fromAvColorRange

(

AVColorRange

colorRange

)

Definition at line 266 of file qffmpeg.cpp.

fromAvColorSpace()

QVideoFrameFormat::ColorSpace QFFmpeg::fromAvColorSpace

(

AVColorSpace

colorSpace

)

Definition at line 223 of file qffmpeg.cpp.

fromAvColorTransfer()

QVideoFrameFormat::ColorTransfer QFFmpeg::fromAvColorTransfer

(

AVColorTransferCharacteristic

colorTrc

)

Definition at line 171 of file qffmpeg.cpp.

getAVFrameDuration()

int64_t QFFmpeg::getAVFrameDuration ( const AVFrame & frame )

inline

Definition at line 102 of file qffmpeg_p.h.

getAVFrameTime()

void QFFmpeg::getAVFrameTime ( const AVFrame & frame, int64_t & pts, AVRational & timeBase )

inline

Definition at line 92 of file qffmpeg_p.h.

getFormat()

AVPixelFormat QFFmpeg::getFormat	(	AVCodecContext *	s,
		const AVPixelFormat *	fmt )

Definition at line 239 of file qffmpeghwaccel.cpp.

getScaleConversionType()

int QFFmpeg::getScaleConversionType	(	const QSize &	sourceSize,
		const QSize &	targetSize )

Definition at line 218 of file qffmpegvideoencoderutils.cpp.

hasValue()

template<typename Value>

bool QFFmpeg::hasValue	(	QSpan< const Value >	range,
		Value	value )

Definition at line 180 of file qffmpeg_p.h.

insertMediaData()

static void QFFmpeg::insertMediaData ( QMediaMetaData & metaData, QPlatformMediaPlayer::TrackType trackType, const AVStream * stream )

static

Definition at line 141 of file qffmpegmediadataholder.cpp.

isAVFormatSupported()

bool QFFmpeg::isAVFormatSupported	(	const Codec &	codec,
		PixelOrSampleFormat	format )

Definition at line 24 of file qffmpeg.cpp.

isHwFormatAcceptedByCodec()

static bool QFFmpeg::isHwFormatAcceptedByCodec ( AVPixelFormat pixFormat )

static

Definition at line 90 of file qffmpegvideoencoderutils.cpp.

isHwPixelFormat()

bool QFFmpeg::isHwPixelFormat

(

AVPixelFormat

format

)

Definition at line 39 of file qffmpeg.cpp.

isNoConversionFormat()

static bool QFFmpeg::isNoConversionFormat ( AVPixelFormat f )

static

Definition at line 231 of file qffmpeghwaccel.cpp.

isPacketWithinStreamDuration()

static bool QFFmpeg::isPacketWithinStreamDuration ( const AVFormatContext * context, const Packet & packet )

static

Definition at line 28 of file qffmpegdemuxer.cpp.

isSwPixelFormat()

bool QFFmpeg::isSwPixelFormat ( AVPixelFormat format )

inline

Definition at line 275 of file qffmpeg_p.h.

loadHWContext()

static AVBufferUPtr QFFmpeg::loadHWContext ( AVHWDeviceType type )

static

Definition at line 58 of file qffmpeghwaccel.cpp.

makeAVFrame()

AVFrameUPtr QFFmpeg::makeAVFrame ( )

inline

Definition at line 152 of file qffmpeg_p.h.

makePitchShiftingAudioFrameConverter()

std::unique_ptr< AbstractAudioFrameConverter > QFFmpeg::makePitchShiftingAudioFrameConverter	(	const Frame &	frame,
		QAudioFormat	outputFormat,
		float	playbackRate )

Definition at line 159 of file qffmpegaudioframeconverter.cpp.

makeSpan()

QSpan< const AVPixelFormat > QFFmpeg::makeSpan

(

const AVPixelFormat *

values

)

Definition at line 299 of file qffmpegcodec.cpp.

makeTrivialAudioFrameConverter()

std::unique_ptr< AbstractAudioFrameConverter > QFFmpeg::makeTrivialAudioFrameConverter	(	const Frame &	frame,
		QAudioFormat	outputFormat,
		float	playbackRate )

Definition at line 153 of file qffmpegaudioframeconverter.cpp.

mul() [1/2]

std::optional< qint64 > QFFmpeg::mul ( qint64 a, AVRational b )

inline

Definition at line 40 of file qffmpeg_p.h.

mul() [2/2]

std::optional< qreal > QFFmpeg::mul ( qreal a, AVRational b )

inline

Definition at line 55 of file qffmpeg_p.h.

operator!=()

bool QFFmpeg::operator!= ( const AVAudioFormat & lhs, const AVAudioFormat & rhs )

inline

Definition at line 59 of file qffmpegavaudioformat_p.h.

References operator==().

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operator<<()

QDebug QFFmpeg::operator<<	(	QDebug	dbg,
		const AVAudioFormat &	format )

Definition at line 78 of file qffmpegavaudioformat.cpp.

References QFFmpeg::AVAudioFormat::sampleRate.

operator==()

bool QFFmpeg::operator==	(	const AVAudioFormat &	lhs,
		const AVAudioFormat &	rhs )

Definition at line 67 of file qffmpegavaudioformat.cpp.

References QFFmpeg::AVAudioFormat::sampleRate.

Referenced by operator!=().

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packetEndPos()

static TrackPosition QFFmpeg::packetEndPos ( const Packet & packet, const AVStream * stream, const AVFormatContext * context )

static

Definition at line 20 of file qffmpegdemuxer.cpp.

pixelFormatForHwDevice()

AVPixelFormat QFFmpeg::pixelFormatForHwDevice

(

AVHWDeviceType

deviceType

)

Definition at line 54 of file qffmpeg.cpp.

precheckDriver()

static bool QFFmpeg::precheckDriver ( AVHWDeviceType type )

static

Definition at line 74 of file qffmpeghwaccel.cpp.

Q_STATIC_LOGGING_CATEGORY() [1/7]

QFFmpeg::Q_STATIC_LOGGING_CATEGORY	(	qLcDemuxer	,
		"qt.multimedia.ffmpeg.demuxer"	)

Q_STATIC_LOGGING_CATEGORY() [2/7]

QFFmpeg::Q_STATIC_LOGGING_CATEGORY	(	qLcEncodingFormatContext	,
		"qt.multimedia.ffmpeg.encodingformatcontext"	)

Q_STATIC_LOGGING_CATEGORY() [3/7]

QFFmpeg::Q_STATIC_LOGGING_CATEGORY	(	qLcFFmpegAudioEncoder	,
		"qt.multimedia.ffmpeg.audioencoder"	)

Q_STATIC_LOGGING_CATEGORY() [4/7]

QFFmpeg::Q_STATIC_LOGGING_CATEGORY	(	qLcFFmpegMuxer	,
		"qt.multimedia.ffmpeg.muxer"	)

Q_STATIC_LOGGING_CATEGORY() [5/7]

QFFmpeg::Q_STATIC_LOGGING_CATEGORY	(	qLcFFmpegVideoEncoder	,
		"qt.multimedia.ffmpeg.videoencoder"	)

Q_STATIC_LOGGING_CATEGORY() [6/7]

QFFmpeg::Q_STATIC_LOGGING_CATEGORY	(	qLcPlaybackEngine	,
		"qt.multimedia.ffmpeg.playbackengine"	)

Q_STATIC_LOGGING_CATEGORY() [7/7]

QFFmpeg::Q_STATIC_LOGGING_CATEGORY	(	qLcRenderer	,
		"qt.multimedia.ffmpeg.renderer"	)

readQIODevice()

int QFFmpeg::readQIODevice	(	void *	opaque,
		uint8_t *	buf,
		int	buf_size )

Definition at line 12 of file qffmpegioutils.cpp.

rhiTextureFormatToMetalFormat()

static MTLPixelFormat QFFmpeg::rhiTextureFormatToMetalFormat ( QRhiTexture::Format f )

static

Definition at line 139 of file qffmpeghwaccel_videotoolbox.mm.

seekQIODevice()

int64_t QFFmpeg::seekQIODevice	(	void *	opaque,
		int64_t	offset,
		int	whence )

Definition at line 30 of file qffmpegioutils.cpp.

setAVFrameTime()

void QFFmpeg::setAVFrameTime ( AVFrame & frame, int64_t pts, const AVRational & timeBase )

inline

Definition at line 82 of file qffmpeg_p.h.

setEncoderInterface()

void QFFmpeg::setEncoderInterface	(	QObject *	source,
		QMediaInputEncoderInterface *	encoderInterface )

Definition at line 22 of file qffmpegrecordingengineutils.cpp.

Referenced by disconnectEncoderFromSource().

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setEncoderUpdateConnection()

void QFFmpeg::setEncoderUpdateConnection	(	QObject *	source,
		EncoderThread *	encoder )

Definition at line 38 of file qffmpegrecordingengineutils.cpp.

streamDuration()

static std::optional< TrackDuration > QFFmpeg::streamDuration ( const AVStream & stream )

static

Definition at line 28 of file qffmpegmediadataholder.cpp.

streamSideData()

const AVPacketSideData * QFFmpeg::streamSideData	(	const AVStream *	stream,
		AVPacketSideDataType	type )

Definition at line 116 of file qffmpeg.cpp.

streamTransformation()

static VideoTransformation QFFmpeg::streamTransformation ( const AVStream * stream )

static

Definition at line 79 of file qffmpegmediadataholder.cpp.

targetSwFormatScoreCalculator()

static auto QFFmpeg::targetSwFormatScoreCalculator ( AVPixelFormat sourceFormat, std::reference_wrapper< const AVPixelFormatSet > prohibitedFormats )

static

Definition at line 81 of file qffmpegvideoencoderutils.cpp.

timeStampMs()

std::optional< qint64 > QFFmpeg::timeStampMs ( qint64 ts, AVRational base )

inline

Definition at line 60 of file qffmpeg_p.h.

timeStampUs()

std::optional< qint64 > QFFmpeg::timeStampUs ( qint64 ts, AVRational base )

inline

Definition at line 65 of file qffmpeg_p.h.

toAvColorRange()

AVColorRange QFFmpeg::toAvColorRange

(

QVideoFrameFormat::ColorRange

colorRange

)

Definition at line 278 of file qffmpeg.cpp.

toAvColorSpace()

AVColorSpace QFFmpeg::toAvColorSpace

(

QVideoFrameFormat::ColorSpace

colorSpace

)

Definition at line 250 of file qffmpeg.cpp.

toAvColorTransfer()

AVColorTransferCharacteristic QFFmpeg::toAvColorTransfer

(

QVideoFrameFormat::ColorTransfer

colorTrc

)

Definition at line 201 of file qffmpeg.cpp.

toContextPosition()

AVContextPosition QFFmpeg::toContextPosition ( TrackPosition trackPosition, const AVFormatContext * formatContext )

inline

Definition at line 100 of file qffmpegtime_p.h.

toFloat()

std::optional< float > QFFmpeg::toFloat ( AVRational r )

inline

Definition at line 70 of file qffmpeg_p.h.

toTrackDuration() [1/3]

TrackDuration QFFmpeg::toTrackDuration ( AVContextDuration contextDuration )

inline

Definition at line 72 of file qffmpegtime_p.h.

toTrackDuration() [2/3]

TrackDuration QFFmpeg::toTrackDuration ( AVStreamDuration streamDuration, const AVStream * avStream )

inline

Definition at line 87 of file qffmpegtime_p.h.

toTrackDuration() [3/3]

TrackDuration QFFmpeg::toTrackDuration ( UserTrackDuration userTrackDuration )

inline

Definition at line 82 of file qffmpegtime_p.h.

toTrackPosition() [1/2]

TrackPosition QFFmpeg::toTrackPosition ( AVStreamPosition streamPosition, const AVStream * avStream, const AVFormatContext * formatContext )

inline

Definition at line 92 of file qffmpegtime_p.h.

toTrackPosition() [2/2]

TrackPosition QFFmpeg::toTrackPosition ( UserTrackPosition userTrackPosition )

inline

Definition at line 77 of file qffmpegtime_p.h.

toUserDuration()

UserTrackDuration QFFmpeg::toUserDuration ( TrackDuration trackDuration )

inline

Definition at line 67 of file qffmpegtime_p.h.

toUserPosition()

UserTrackPosition QFFmpeg::toUserPosition ( TrackPosition trackPosition )

inline

Definition at line 62 of file qffmpegtime_p.h.

writeQIODevice()

int QFFmpeg::writeQIODevice	(	void *	opaque,
		AvioWriteBufferType	buf,
		int	buf_size )

Definition at line 22 of file qffmpegioutils.cpp.

Variable Documentation

apply

ApplyOptions QFFmpeg::apply

Definition at line 308 of file qffmpegencoderoptions.cpp.

[struct]

const struct { ... } QFFmpeg::audioCodecOptionTable

Initial value:

= {
    { nullptr, nullptr }
}

MaxBufferedDurationUs

static constexpr TrackDuration QFFmpeg::MaxBufferedDurationUs { 4'000'000 }

staticconstexpr

Definition at line 13 of file qffmpegdemuxer.cpp.

MaxBufferedSize

static constexpr qint64 QFFmpeg::MaxBufferedSize = 32 * 1024 * 1024

staticconstexpr

Definition at line 16 of file qffmpegdemuxer.cpp.

name

const char* QFFmpeg::name

Definition at line 307 of file qffmpegencoderoptions.cpp.

PersistentId

static QAtomicInteger< PlaybackEngineObject::Id > QFFmpeg::PersistentId = 0

static

Definition at line 13 of file qffmpegplaybackengineobject.cpp.

preferredHardwareAccelerators

static const std::initializer_list< AVHWDeviceType > QFFmpeg::preferredHardwareAccelerators

static

Initial value:

= {
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
}

Definition at line 40 of file qffmpeghwaccel.cpp.

shouldPauseStreams

static constexpr bool QFFmpeg::shouldPauseStreams = false

staticconstexpr

Definition at line 41 of file qffmpegplaybackengine.cpp.

[struct]

const struct { ... } QFFmpeg::videoCodecOptionTable

VideoFrameTimeBase

qint64 QFFmpeg::VideoFrameTimeBase = 1000000

constexpr

Definition at line 28 of file qffmpegrecordingengineutils_p.h.