QFFmpeg Namespace Reference

Classes
class	AudioDecoder
class	AudioEncoder
class	AudioRenderer
class	AudioSourceIO
struct	AVAudioFormat
struct	AVDeleter
struct	AVDictionaryHolder
class	CancelToken
class	Codec
class	ConsumerThread
	FFmpeg thread that is used to implement a consumer pattern. More...
class	D3D11TextureConverter
class	D3D11TextureSet
class	Demuxer
class	EncoderThread
class	EncodingFormatContext
class	EncodingInitializer
struct	Frame
class	HWAccel
struct	ICancelToken
struct	LoopOffset
class	MediaCodecTextureConverter
class	MediaCodecTextureSet
class	MediaDataHolder
class	Muxer
struct	Packet
class	PlaybackEngine
class	PlaybackEngineObject
struct	PositionWithOffset
struct	QVideoFrameHolder
class	RecordingEngine
class	Renderer
struct	SharedTextureHandleTraits
class	SteppingAudioRenderer
class	StreamDecoder
class	SubtitleRenderer
class	TextureBridge
class	TextureConverter
class	TextureConverterBackend
class	TextureSet
class	TimeController
class	VAAPITextureConverter
class	VAAPITextureSet
class	VideoEncoder
class	VideoFrameEncoder
class	VideoRenderer
class	VideoToolBoxTextureSet

Typedefs
using	AVFormatContextUPtr = std::unique_ptr<AVFormatContext, AVDeleter<decltype(&avformat_close_input), &avformat_close_input>>
using	AvioWriteBufferType
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	StreamIndexes = std::array<int, 3>
using	SharedTextureHandle = QUniqueHandle<SharedTextureHandleTraits>
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>

Functions
bool	findAndOpenAVDecoder (AVCodecID codecId, const std::function< AVScore(const AVCodec *)> &scoresGetter, const std::function< bool(const AVCodec *)> &codecOpener)
bool	findAndOpenAVEncoder (AVCodecID codecId, const std::function< AVScore(const AVCodec *)> &scoresGetter, const std::function< bool(const AVCodec *)> &codecOpener)
const AVCodec *	findAVDecoder (AVCodecID codecId, const std::optional< PixelOrSampleFormat > &format={})
const AVCodec *	findAVEncoder (AVCodecID codecId, const std::optional< PixelOrSampleFormat > &format={})
const AVCodec *	findAVEncoder (AVCodecID codecId, const std::function< AVScore(const AVCodec *)> &scoresGetter)
	Q_STATIC_LOGGING_CATEGORY (qLcDemuxer, "qt.multimedia.ffmpeg.demuxer")
static qint64	streamTimeToUs (const AVStream *stream, qint64 time)
static qint64	packetEndPos (const AVStream *stream, const Packet &packet)
static bool	isPacketWithinStreamDuration (const AVFormatContext *context, const Packet &packet)
static std::optional< qint64 >	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")
enum AVPixelFormat	getFormat (struct AVCodecContext *s, const enum AVPixelFormat *fmt)
AVFrameUPtr	copyFromHwPool (AVFrameUPtr frame)
bool	isAVFormatSupported (const AVCodec *codec, PixelOrSampleFormat format)
bool	isHwPixelFormat (AVPixelFormat format)
bool	isAVCodecExperimental (const AVCodec *codec)
void	applyExperimentalCodecOptions (const AVCodec *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)
void	logGetCodecConfigError (const AVCodec *codec, AVCodecConfig config, int error)
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)
template<typename T >
const T *	getCodecConfig (const AVCodec *codec, AVCodecConfig config)
const AVPixelFormat *	getCodecPixelFormats (const AVCodec *codec)
const AVSampleFormat *	getCodecSampleFormats (const AVCodec *codec)
const int *	getCodecSampleRates (const AVCodec *codec)
const AVChannelLayout *	getCodecChannelLayouts (const AVCodec *codec)
const AVRational *	getCodecFrameRates (const AVCodec *codec)
AVFrameUPtr	makeAVFrame ()
template<typename Format >
bool	hasAVValue (const Format *fmts, Format format)
template<typename AVValue , typename Predicate >
AVValue	findAVValue (const AVValue *fmts, const Predicate &predicate)
template<typename Predicate >
const AVCodecHWConfig *	findHwConfig (const AVCodec *codec, const Predicate &predicate)
template<typename Predicate >
AVPixelFormat	findAVPixelFormat (const AVCodec *codec, const Predicate &predicate)
template<typename Value , typename CalculateScore >
auto	findBestAVValue (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)
	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)
template<typename CodecFinder >
std::pair< const AVCodec *, HWAccelUPtr >	findCodecWithHwAccel (AVCodecID id, const std::vector< AVHWDeviceType > &deviceTypes, CodecFinder codecFinder, const std::function< bool(const HWAccel &)> &hwAccelPredicate)
static bool	isNoConversionFormat (AVPixelFormat f)
AVPixelFormat	getFormat (AVCodecContext *codecContext, const AVPixelFormat *suggestedFormats)
AVFrameUPtr	copyFromHwPoolD3D11 (AVFrameUPtr src)
static const quint32 *	fourccFromPixelFormat (const QVideoFrameFormat::PixelFormat format)
static CVMetalTextureCacheRef &	mtc (void *&cache)
static MTLPixelFormat	rhiTextureFormatToMetalFormat (QRhiTexture::Format f)
	Q_STATIC_LOGGING_CATEGORY (qLcPlaybackEngine, "qt.multimedia.ffmpeg.playbackengine")
template<typename Array >
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 (const AVSampleFormat *supportedFormats, AVSampleFormat requested)
int	adjustSampleRate (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)
uint64_t	adjustChannelLayout (const uint64_t *supportedMasks, uint64_t requested)
	Q_STATIC_LOGGING_CATEGORY (qLcFFmpegMuxer, "qt.multimedia.ffmpeg.muxer")
template<typename F >
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)
AVPixelFormat	findTargetSWFormat (AVPixelFormat sourceSWFormat, const AVCodec *codec, const HWAccel &accel, const AVPixelFormatSet &prohibitedFormats)
AVPixelFormat	findTargetFormat (AVPixelFormat sourceFormat, AVPixelFormat sourceSWFormat, const AVCodec *codec, const HWAccel *accel, const AVPixelFormatSet &prohibitedFormats)
std::pair< const AVCodec *, HWAccelUPtr >	findHwEncoder (AVCodecID codecID, const QSize &resolution)
AVScore	findSWFormatScores (const AVCodec *codec, AVPixelFormat sourceSWFormat)
const AVCodec *	findSwEncoder (AVCodecID codecID, AVPixelFormat sourceSWFormat)
AVRational	adjustFrameRate (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 (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 AVCodec *codec, QSize requestedResolution)

Variables
static QAtomicInteger< PlaybackEngineObject::Id >	PersistentId = 0
template<typename T >
constexpr auto	InvalidAvValue = T{}
template<>
constexpr auto	InvalidAvValue< AVSampleFormat > = AV_SAMPLE_FMT_NONE
template<>
constexpr auto	InvalidAvValue< AVPixelFormat > = AV_PIX_FMT_NONE
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 283 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 227 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 223 of file qffmpeg_p.h.

AVFormatContextUPtr

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

Definition at line 37 of file qffmpegmediadataholder_p.h.

AVFrameUPtr

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

Definition at line 213 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 230 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 220 of file qffmpeg_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 86 of file qffmpeghwaccel_p.h.

SharedTextureHandle

using QFFmpeg::SharedTextureHandle = QUniqueHandle<SharedTextureHandleTraits>

Definition at line 40 of file qffmpeghwaccel_d3d11_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 234 of file qffmpeg_p.h.

SwsContextUPtr

using QFFmpeg::SwsContextUPtr

Initial value:

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

Definition at line 236 of file qffmpeg_p.h.

VideoFrameEncoderUPtr

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

Definition at line 30 of file qffmpegvideoframeencoder_p.h.

Function Documentation

addStreamSideData()

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

Definition at line 95 of file qffmpeg.cpp.

adjustChannelLayout()

uint64_t QFFmpeg::adjustChannelLayout	(	const uint64_t *	supportedMasks,
		uint64_t	requested )

Definition at line 100 of file qffmpegaudioencoderutils.cpp.

adjustFrameRate()

AVRational QFFmpeg::adjustFrameRate	(	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 186 of file qffmpegvideoencoderutils.cpp.

adjustFrameTimeBase()

AVRational QFFmpeg::adjustFrameTimeBase	(	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 202 of file qffmpegvideoencoderutils.cpp.

adjustSampleFormat()

AVSampleFormat QFFmpeg::adjustSampleFormat	(	const AVSampleFormat *	supportedFormats,
		AVSampleFormat	requested )

Definition at line 11 of file qffmpegaudioencoderutils.cpp.

References BestAVScore, and DefaultAVScore.

adjustSampleRate()

int QFFmpeg::adjustSampleRate	(	const int *	supportedRates,
		int	requested )

Definition at line 33 of file qffmpegaudioencoderutils.cpp.

References BestAVScore, and DefaultAVScore.

adjustVideoResolution()

QSize QFFmpeg::adjustVideoResolution	(	const AVCodec *	codec,
		QSize	requestedResolution )

Definition at line 223 of file qffmpegvideoencoderutils.cpp.

applyAudioEncoderOptions()

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

Definition at line 342 of file qffmpegencoderoptions.cpp.

applyExperimentalCodecOptions()

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

Definition at line 50 of file qffmpeg.cpp.

References isAVCodecExperimental().

Here is the call graph for this function:

applyVideoEncoderOptions()

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

Definition at line 327 of file qffmpegencoderoptions.cpp.

avFrameDeviceContext()

AVHWDeviceContext * QFFmpeg::avFrameDeviceContext

(

const AVFrame *

frame

)

Definition at line 295 of file qffmpeg.cpp.

calculateScoreByChannelsCount()

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

static

Definition at line 51 of file qffmpegaudioencoderutils.cpp.

Referenced by calculateScoreByChannelsMask().

Here is the caller graph for this function:

calculateScoreByChannelsMask()

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

static

Definition at line 62 of file qffmpegaudioencoderutils.cpp.

References BestAVScore, and calculateScoreByChannelsCount().

Here is the call graph for this function:

calculateTargetSwFormatScore()

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

static

Definition at line 16 of file qffmpegvideoencoderutils.cpp.

References DefaultAVScore, and NotSuitableAVScore.

checkHwType()

static bool QFFmpeg::checkHwType ( AVHWDeviceType type )

static

Definition at line 115 of file qffmpeghwaccel.cpp.

References FFmpegLogsEnabledInThread, and precheckDriver().

Referenced by deviceTypes().

Here is the call graph for this function:

Here is the caller graph for this function:

colorTransferSupportsHdr()

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

static

Definition at line 101 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.

copyFromHwPool()

AVFrameUPtr QFFmpeg::copyFromHwPool

(

AVFrameUPtr

frame

)

Definition at line 519 of file qffmpeghwaccel.cpp.

copyFromHwPoolD3D11()

AVFrameUPtr QFFmpeg::copyFromHwPoolD3D11

(

AVFrameUPtr

src

)

Definition at line 349 of file qffmpeghwaccel_d3d11.cpp.

References QT_BEGIN_NAMESPACE::getHwDeviceContext().

Here is the call graph for this function:

createResampleContext()

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

Definition at line 136 of file qffmpeg.cpp.

References QFFmpeg::AVAudioFormat::channelLayout, QFFmpeg::AVAudioFormat::sampleFormat, and QFFmpeg::AVAudioFormat::sampleRate.

createSwsContext()

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

Definition at line 308 of file qffmpeg.cpp.

defaultObjectsArray()

template<typename Array >

Array QFFmpeg::defaultObjectsArray ( )

inline

Definition at line 28 of file qffmpegplaybackengine.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 144 of file qffmpeghwaccel.cpp.

References checkHwType(), isHwPixelFormat(), and pixelFormatForHwDevice().

Here is the call graph for this function:

deviceTypes() [2/2]

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

static

Definition at line 187 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().

Here is the call graph for this function:

Here is the caller graph for this function:

displayMatrixToTransform()

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

static

Definition at line 50 of file qffmpegmediadataholder.cpp.

doWithMediaFrameInput()

template<typename F >

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

Definition at line 14 of file qffmpegrecordingengineutils.cpp.

err2str()

QString QFFmpeg::err2str ( int errnum )

inline

Definition at line 64 of file qffmpeg_p.h.

findAndOpenAVDecoder()

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

Definition at line 412 of file qffmpegcodecstorage.cpp.

findAndOpenAVEncoder()

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

Definition at line 419 of file qffmpegcodecstorage.cpp.

Referenced by QFFmpeg::VideoFrameEncoder::create(), and QFFmpeg::AudioEncoder::init().

Here is the caller graph for this function:

findAVDecoder()

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

Definition at line 396 of file qffmpegcodecstorage.cpp.

findAVEncoder() [1/2]

const AVCodec * QFFmpeg::findAVEncoder	(	AVCodecID	codecId,
		const std::function< AVScore(const AVCodec *)> &	scoresGetter )

Definition at line 406 of file qffmpegcodecstorage.cpp.

Referenced by QFFmpeg::AudioEncoder::AudioEncoder(), QFFmpegMediaFormatInfo::QFFmpegMediaFormatInfo(), and QFFmpeg::HWAccel::findEncoderWithHwAccel().

Here is the caller graph for this function:

findAVEncoder() [2/2]

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

Definition at line 401 of file qffmpegcodecstorage.cpp.

findAVPixelFormat()

template<typename Predicate >

AVPixelFormat QFFmpeg::findAVPixelFormat	(	const AVCodec *	codec,
		const Predicate &	predicate )

Definition at line 277 of file qffmpeg_p.h.

References getCodecPixelFormats().

Here is the call graph for this function:

findAVValue()

template<typename AVValue , typename Predicate >

AVValue QFFmpeg::findAVValue	(	const AVValue *	fmts,
		const Predicate &	predicate )

Definition at line 257 of file qffmpeg_p.h.

References BestAVScore, and NotSuitableAVScore.

findBestAVValue()

template<typename Value , typename CalculateScore >

auto QFFmpeg::findBestAVValue	(	const Value *	values,
		const CalculateScore &	calculateScore )

Definition at line 295 of file qffmpeg_p.h.

findCodecWithHwAccel()

template<typename CodecFinder >

std::pair< const AVCodec *, HWAccelUPtr > QFFmpeg::findCodecWithHwAccel	(	AVCodecID	id,
		const std::vector< AVHWDeviceType > &	deviceTypes,
		CodecFinder	codecFinder,
		const std::function< bool(const HWAccel &)> &	hwAccelPredicate )

Definition at line 212 of file qffmpeghwaccel.cpp.

findHwConfig()

template<typename Predicate >

const AVCodecHWConfig * QFFmpeg::findHwConfig	(	const AVCodec *	codec,
		const Predicate &	predicate )

Definition at line 266 of file qffmpeg_p.h.

findHwEncoder()

std::pair< const AVCodec *, HWAccelUPtr > QFFmpeg::findHwEncoder	(	AVCodecID	codecID,
		const QSize &	resolution )

Definition at line 154 of file qffmpegvideoencoderutils.cpp.

findSwEncoder()

const AVCodec * QFFmpeg::findSwEncoder	(	AVCodecID	codecID,
		AVPixelFormat	sourceSWFormat )

Definition at line 179 of file qffmpegvideoencoderutils.cpp.

References findSWFormatScores().

Here is the call graph for this function:

findSWFormatScores()

AVScore QFFmpeg::findSWFormatScores	(	const AVCodec *	codec,
		AVPixelFormat	sourceSWFormat )

Definition at line 167 of file qffmpegvideoencoderutils.cpp.

References getCodecPixelFormats(), and MinAVScore.

Referenced by QFFmpeg::VideoFrameEncoder::create(), and findSwEncoder().

Here is the call graph for this function:

Here is the caller graph for this function:

findTargetFormat()

AVPixelFormat QFFmpeg::findTargetFormat	(	AVPixelFormat	sourceFormat,
		AVPixelFormat	sourceSWFormat,
		const AVCodec *	codec,
		const HWAccel *	accel,
		const AVPixelFormatSet &	prohibitedFormats = {} )

Definition at line 119 of file qffmpegvideoencoderutils.cpp.

References QFFmpeg::HWAccel::constraints(), getCodecPixelFormats(), QFFmpeg::HWAccel::hwFormat(), and isAVFormatSupported().

Here is the call graph for this function:

findTargetSWFormat()

AVPixelFormat QFFmpeg::findTargetSWFormat	(	AVPixelFormat	sourceSWFormat,
		const AVCodec *	codec,
		const HWAccel &	accel,
		const AVPixelFormatSet &	prohibitedFormats = {} )

Definition at line 101 of file qffmpegvideoencoderutils.cpp.

References QFFmpeg::HWAccel::constraints(), and getCodecPixelFormats().

Here is the call graph for this function:

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 139 of file qffmpegvideoencoder.cpp.

fromAvColorRange()

QVideoFrameFormat::ColorRange QFFmpeg::fromAvColorRange

(

AVColorRange

colorRange

)

Definition at line 271 of file qffmpeg.cpp.

fromAvColorSpace()

QVideoFrameFormat::ColorSpace QFFmpeg::fromAvColorSpace

(

AVColorSpace

colorSpace

)

Definition at line 228 of file qffmpeg.cpp.

fromAvColorTransfer()

QVideoFrameFormat::ColorTransfer QFFmpeg::fromAvColorTransfer

(

AVColorTransferCharacteristic

colorTrc

)

Definition at line 176 of file qffmpeg.cpp.

getAVFrameDuration()

int64_t QFFmpeg::getAVFrameDuration ( const AVFrame & frame )

inline

Definition at line 91 of file qffmpeg_p.h.

getAVFrameTime()

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

inline

Definition at line 81 of file qffmpeg_p.h.

getCodecChannelLayouts()

const AVChannelLayout * QFFmpeg::getCodecChannelLayouts ( const AVCodec * codec )

inline

Definition at line 147 of file qffmpeg_p.h.

Referenced by QFFmpeg::AudioEncoder::init().

Here is the caller graph for this function:

getCodecConfig()

template<typename T >

const T * QFFmpeg::getCodecConfig ( const AVCodec * codec, AVCodecConfig config )

inline

Definition at line 105 of file qffmpeg_p.h.

getCodecFrameRates()

const AVRational * QFFmpeg::getCodecFrameRates ( const AVCodec * codec )

inline

Definition at line 165 of file qffmpeg_p.h.

getCodecPixelFormats()

const AVPixelFormat * QFFmpeg::getCodecPixelFormats ( const AVCodec * codec )

inline

Definition at line 118 of file qffmpeg_p.h.

Referenced by findAVPixelFormat(), findSWFormatScores(), findTargetFormat(), findTargetSWFormat(), and getFormat().

Here is the caller graph for this function:

getCodecSampleFormats()

const AVSampleFormat * QFFmpeg::getCodecSampleFormats ( const AVCodec * codec )

inline

Definition at line 127 of file qffmpeg_p.h.

Referenced by QFFmpeg::AudioEncoder::init(), and isAVFormatSupported().

Here is the caller graph for this function:

getCodecSampleRates()

const int * QFFmpeg::getCodecSampleRates ( const AVCodec * codec )

inline

Definition at line 136 of file qffmpeg_p.h.

Referenced by QFFmpeg::AudioEncoder::init().

Here is the caller graph for this function:

getFormat() [1/2]

AVPixelFormat QFFmpeg::getFormat	(	AVCodecContext *	codecContext,
		const AVPixelFormat *	suggestedFormats )

Definition at line 285 of file qffmpeghwaccel.cpp.

References DefaultAVScore, getCodecPixelFormats(), isHwPixelFormat(), isNoConversionFormat(), and NotSuitableAVScore.

Here is the call graph for this function:

getFormat() [2/2]

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

hasAVValue()

template<typename Format >

bool QFFmpeg::hasAVValue	(	const Format *	fmts,
		Format	format )

Definition at line 251 of file qffmpeg_p.h.

insertMediaData()

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

static

Definition at line 142 of file qffmpegmediadataholder.cpp.

isAVCodecExperimental()

bool QFFmpeg::isAVCodecExperimental

(

const AVCodec *

codec

)

Definition at line 45 of file qffmpeg.cpp.

Referenced by applyExperimentalCodecOptions().

Here is the caller graph for this function:

isAVFormatSupported()

bool QFFmpeg::isAVFormatSupported	(	const AVCodec *	codec,
		PixelOrSampleFormat	format )

Definition at line 24 of file qffmpeg.cpp.

References getCodecSampleFormats().

Referenced by findTargetFormat().

Here is the call graph for this function:

Here is the caller graph for this function:

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.

Referenced by QFFmpeg::VideoFrameEncoder::create(), deviceTypes(), getFormat(), and isSwPixelFormat().

Here is the caller graph for this function:

isNoConversionFormat()

static bool QFFmpeg::isNoConversionFormat ( AVPixelFormat f )

static

Definition at line 245 of file qffmpeghwaccel.cpp.

Referenced by getFormat().

Here is the caller graph for this function:

isPacketWithinStreamDuration()

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

static

Definition at line 33 of file qffmpegdemuxer.cpp.

References QFFmpeg::Packet::avPacket().

Referenced by QFFmpeg::Demuxer::doNextStep().

Here is the call graph for this function:

Here is the caller graph for this function:

isSwPixelFormat()

bool QFFmpeg::isSwPixelFormat ( AVPixelFormat format )

inline

Definition at line 315 of file qffmpeg_p.h.

References isHwPixelFormat().

Referenced by QFFmpeg::VideoFrameEncoder::create().

Here is the call graph for this function:

Here is the caller graph for this function:

loadHWContext()

static AVBufferUPtr QFFmpeg::loadHWContext ( AVHWDeviceType type )

static

Definition at line 61 of file qffmpeghwaccel.cpp.

logGetCodecConfigError()

void QFFmpeg::logGetCodecConfigError	(	const AVCodec *	codec,
		AVCodecConfig	config,
		int	error )

Definition at line 342 of file qffmpeg.cpp.

makeAVFrame()

AVFrameUPtr QFFmpeg::makeAVFrame ( )

inline

Definition at line 215 of file qffmpeg_p.h.

mtc()

static CVMetalTextureCacheRef & QFFmpeg::mtc ( void *& cache )

static

Definition at line 36 of file qffmpeghwaccel_videotoolbox.mm.

mul() [1/2]

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

inline

Definition at line 39 of file qffmpeg_p.h.

mul() [2/2]

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

inline

Definition at line 44 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==().

Here is the call graph for this function:

operator<<()

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

Definition at line 78 of file qffmpegavaudioformat.cpp.

References QFFmpeg::AVAudioFormat::channelLayout, QFFmpeg::AVAudioFormat::sampleFormat, and QFFmpeg::AVAudioFormat::sampleRate.

operator==()

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

Definition at line 67 of file qffmpegavaudioformat.cpp.

References QFFmpeg::AVAudioFormat::channelLayout, operator==(), QFFmpeg::AVAudioFormat::sampleFormat, and QFFmpeg::AVAudioFormat::sampleRate.

Referenced by operator!=().

Here is the call graph for this function:

Here is the caller graph for this function:

packetEndPos()

static qint64 QFFmpeg::packetEndPos ( const AVStream * stream, const Packet & packet )

static

Definition at line 27 of file qffmpegdemuxer.cpp.

References QFFmpeg::Packet::avPacket(), QFFmpeg::Packet::loopOffset(), QFFmpeg::LoopOffset::pos, and streamTimeToUs().

Referenced by QFFmpeg::Demuxer::doNextStep(), and QFFmpeg::Demuxer::onPacketProcessed().

Here is the call graph for this function:

Here is the caller graph for this function:

pixelFormatForHwDevice()

AVPixelFormat QFFmpeg::pixelFormatForHwDevice

(

AVHWDeviceType

deviceType

)

Definition at line 59 of file qffmpeg.cpp.

Referenced by deviceTypes(), and QFFmpeg::HWAccel::hwFormat().

Here is the caller graph for this function:

precheckDriver()

static bool QFFmpeg::precheckDriver ( AVHWDeviceType type )

static

Definition at line 77 of file qffmpeghwaccel.cpp.

Referenced by checkHwType().

Here is the caller graph for this function:

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 135 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.

Referenced by QFFmpeg::EncodingFormatContext::openAVIO().

Here is the caller graph for this function:

setAVFrameTime()

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

inline

Definition at line 71 of file qffmpeg_p.h.

setEncoderInterface()

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

Definition at line 22 of file qffmpegrecordingengineutils.cpp.

Referenced by disconnectEncoderFromSource().

Here is the caller graph for this function:

setEncoderUpdateConnection()

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

Definition at line 38 of file qffmpegrecordingengineutils.cpp.

streamDuration()

static std::optional< qint64 > QFFmpeg::streamDuration ( const AVStream & stream )

static

Definition at line 26 of file qffmpegmediadataholder.cpp.

streamSideData()

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

Definition at line 121 of file qffmpeg.cpp.

Referenced by streamTransformation().

Here is the caller graph for this function:

streamTimeToUs()

static qint64 QFFmpeg::streamTimeToUs ( const AVStream * stream, qint64 time )

static

Definition at line 19 of file qffmpegdemuxer.cpp.

Referenced by QFFmpeg::Demuxer::doNextStep(), QFFmpeg::Demuxer::onPacketProcessed(), and packetEndPos().

Here is the caller graph for this function:

streamTransformation()

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

static

Definition at line 80 of file qffmpegmediadataholder.cpp.

References streamSideData().

Here is the call graph for this function:

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 49 of file qffmpeg_p.h.

timeStampUs()

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

inline

Definition at line 54 of file qffmpeg_p.h.

toAvColorRange()

AVColorRange QFFmpeg::toAvColorRange

(

QVideoFrameFormat::ColorRange

colorRange

)

Definition at line 283 of file qffmpeg.cpp.

toAvColorSpace()

AVColorSpace QFFmpeg::toAvColorSpace

(

QVideoFrameFormat::ColorSpace

colorSpace

)

Definition at line 255 of file qffmpeg.cpp.

toAvColorTransfer()

AVColorTransferCharacteristic QFFmpeg::toAvColorTransfer

(

QVideoFrameFormat::ColorTransfer

colorTrc

)

Definition at line 206 of file qffmpeg.cpp.

toFloat()

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

inline

Definition at line 59 of file qffmpeg_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 287 of file qffmpegencoderoptions.cpp.

[struct]

const struct { ... } QFFmpeg::audioCodecOptionTable

Initial value:

= {
    { nullptr, nullptr }
}

InvalidAvValue

template<typename T >

auto QFFmpeg::InvalidAvValue = T{}

inlineconstexpr

Definition at line 240 of file qffmpeg_p.h.

InvalidAvValue< AVPixelFormat >

template<>

auto QFFmpeg::InvalidAvValue< AVPixelFormat > = AV_PIX_FMT_NONE

inlineconstexpr

Definition at line 246 of file qffmpeg_p.h.

InvalidAvValue< AVSampleFormat >

template<>

auto QFFmpeg::InvalidAvValue< AVSampleFormat > = AV_SAMPLE_FMT_NONE

inlineconstexpr

Definition at line 243 of file qffmpeg_p.h.

name

const char* QFFmpeg::name

Definition at line 286 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 43 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.