QFFmpeg Namespace Reference

Classes
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	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
class	StreamDecoder
class	SubtitleRenderer
class	TextureConverter
class	TextureConverterBackend
class	TextureSet
class	TimeController
class	VAAPITextureSet
class	VideoEncoder
class	VideoFrameEncoder
class	VideoRenderer

Typedefs
using	AVFormatContextUPtr = std::unique_ptr<AVFormatContext, AVDeleter<decltype(&avformat_close_input), &avformat_close_input>>
using	StreamIndexes = std::array<int, 3>
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	PixelOrSampleFormat = int
using	AVScore = int
using	AvioWriteBufferType
using	ApplyOptions = void (*)(const QMediaEncoderSettings &settings, AVCodecContext *codec, AVDictionary **opts)

Functions
static	Q_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	Q_LOGGING_CATEGORY (qLcRenderer, "qt.multimedia.ffmpeg.renderer")
const AVCodec *	findAVDecoder (AVCodecID codecId, const std::optional< AVHWDeviceType > &deviceType, const std::optional< PixelOrSampleFormat > &format)
const AVCodec *	findAVEncoder (AVCodecID codecId, const std::optional< AVHWDeviceType > &deviceType, const std::optional< PixelOrSampleFormat > &format)
const AVCodec *	findAVEncoder (AVCodecID codecId, const std::function< AVScore(const AVCodec *)> &scoresGetter)
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)
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 Format >
bool	hasAVFormat (const Format *fmts, Format format)
template<typename Format , typename Predicate >
Format	findAVFormat (const Format *fmts, const Predicate &predicate)
template<typename Value , typename CalculateScore >
auto	findBestAVValue (const Value *values, const CalculateScore &calculateScore, Value invalidValue={})
template<typename Format , typename CalculateScore >
std::pair< Format, AVScore >	findBestAVFormat (const Format *fmts, const CalculateScore &calculateScore)
bool	isSwPixelFormat (AVPixelFormat format)
bool	operator== (const AVAudioFormat &lhs, const AVAudioFormat &rhs)
bool	operator!= (const AVAudioFormat &lhs, const AVAudioFormat &rhs)
static	Q_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 *, std::unique_ptr< HWAccel > >	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)
enum AVPixelFormat	getFormat (struct AVCodecContext *s, const enum AVPixelFormat *fmt)
static const quint32 *	fourccFromPixelFormat (const QVideoFrameFormat::PixelFormat format)
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)
static	Q_LOGGING_CATEGORY (qLcPlaybackEngine, "qt.multimedia.ffmpeg.playbackengine")
template<typename Array >
Array	defaultObjectsArray ()
static	Q_LOGGING_CATEGORY (qLcFFmpegAudioEncoder, "qt.multimedia.ffmpeg.audioencoder")
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)
AVChannelLayout	adjustChannelLayout (const AVChannelLayout *supportedLayouts, const AVChannelLayout &requested)
void	applyVideoEncoderOptions (const QMediaEncoderSettings &settings, const QByteArray &codecName, AVCodecContext *codec, AVDictionary **opts)
void	applyAudioEncoderOptions (const QMediaEncoderSettings &settings, const QByteArray &codecName, AVCodecContext *codec, AVDictionary **opts)
static	Q_LOGGING_CATEGORY (qLcFFmpegMuxer, "qt.multimedia.ffmpeg.muxer")
template<typename T >
T	dequeueIfPossible (std::queue< T > &queue)
static	Q_LOGGING_CATEGORY (qLcFFmpegVideoEncoder, "qt.multimedia.ffmpeg.videoencoder")
static void	freeQVideoFrame (void *opaque, uint8_t *)
static AVScore	calculateTargetSwFormatScore (const AVPixFmtDescriptor *sourceSwFormatDesc, AVPixelFormat fmt)
static auto	targetSwFormatScoreCalculator (AVPixelFormat sourceFormat)
static bool	isHwFormatAcceptedByCodec (AVPixelFormat pixFormat)
AVPixelFormat	findTargetSWFormat (AVPixelFormat sourceSWFormat, const AVCodec *codec, const HWAccel &accel)
AVPixelFormat	findTargetFormat (AVPixelFormat sourceFormat, AVPixelFormat sourceSWFormat, const AVCodec *codec, const HWAccel *accel)
std::pair< const AVCodec *, std::unique_ptr< HWAccel > >	findHwEncoder (AVCodecID codecID, const QSize &resolution)
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
constexpr AVScore	BestAVScore = std::numeric_limits<AVScore>::max()
constexpr AVScore	DefaultAVScore = 0
constexpr AVScore	NotSuitableAVScore = std::numeric_limits<AVScore>::min()
constexpr AVScore	MinAVScore = NotSuitableAVScore + 1
static const std::initializer_list< AVHWDeviceType >	preferredHardwareAccelerators
static constexpr bool	shouldPauseStreams = false
struct {
const char *   QFFmpeg::name
ApplyOptions   QFFmpeg::apply
}	videoCodecOptionTable []
struct {
const char *   QFFmpeg::name
ApplyOptions   QFFmpeg::apply
}	audioCodecOptionTable []

Typedef Documentation

ApplyOptions

using QFFmpeg::ApplyOptions = 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 148 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 144 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 134 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 151 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 141 of file qffmpeg_p.h.

AVScore

using QFFmpeg::AVScore = int

Definition at line 158 of file qffmpeg_p.h.

PixelOrSampleFormat

using QFFmpeg::PixelOrSampleFormat = int

Definition at line 157 of file qffmpeg_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 155 of file qffmpeg_p.h.

Function Documentation

addStreamSideData()

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

Definition at line 512 of file qffmpeg.cpp.

References Q_UNUSED, and qWarning.

adjustChannelLayout()

AVChannelLayout QFFmpeg::adjustChannelLayout	(	const AVChannelLayout *	supportedLayouts,
		const AVChannelLayout &	requested )

Definition at line 68 of file qffmpegaudioencoderutils.cpp.

References BestAVScore, calculateScoreByChannelsCount(), calculateScoreByChannelsMask(), findBestAVValue(), layout, and NotSuitableAVScore.

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

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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 160 of file qffmpegvideoencoderutils.cpp.

References findBestAVValue(), qMax(), qMin(), and qRealToFraction().

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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 176 of file qffmpegvideoencoderutils.cpp.

References frameRate, and Q_ASSERT.

adjustSampleFormat()

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

Definition at line 11 of file qffmpegaudioencoderutils.cpp.

References BestAVScore, and findBestAVFormat().

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

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adjustSampleRate()

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

Definition at line 23 of file qffmpegaudioencoderutils.cpp.

References BestAVScore, and findBestAVValue().

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

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adjustVideoResolution()

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

Definition at line 197 of file qffmpegvideoencoderutils.cpp.

References codec, and Q_UNUSED.

applyAudioEncoderOptions()

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

Definition at line 342 of file qffmpegencoderoptions.cpp.

References audioCodecOptionTable, QMediaRecorder::AverageBitRateEncoding, codec, QMediaRecorder::ConstantBitRateEncoding, and settings.

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

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applyExperimentalCodecOptions()

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

Definition at line 467 of file qffmpeg.cpp.

References codec, isAVCodecExperimental(), and qCWarning.

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

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applyVideoEncoderOptions()

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

Definition at line 327 of file qffmpegencoderoptions.cpp.

References codec, settings, and videoCodecOptionTable.

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

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calculateScoreByChannelsCount()

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

static

Definition at line 35 of file qffmpegaudioencoderutils.cpp.

Referenced by adjustChannelLayout(), and calculateScoreByChannelsMask().

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calculateScoreByChannelsMask()

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

static

Definition at line 44 of file qffmpegaudioencoderutils.cpp.

References BestAVScore, calculateScoreByChannelsCount(), and qPopulationCount().

Referenced by adjustChannelLayout().

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calculateTargetSwFormatScore()

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

static

Definition at line 15 of file qffmpegvideoencoderutils.cpp.

References DefaultAVScore, fmt, and NotSuitableAVScore.

Referenced by targetSwFormatScoreCalculator().

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checkHwType()

static bool QFFmpeg::checkHwType ( AVHWDeviceType type )

static

Definition at line 114 of file qffmpeghwaccel.cpp.

References FFmpegLogsEnabledInThread, loadHWContext(), precheckDriver(), qCDebug, QT_FFMPEG_HAS_D3D12VA, and qWarning.

Referenced by deviceTypes().

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createResampleContext()

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

Definition at line 553 of file qffmpeg.cpp.

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

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

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defaultObjectsArray()

template<typename Array >

Array QFFmpeg::defaultObjectsArray ( )

inline

Definition at line 27 of file qffmpegplaybackengine.cpp.

dequeueIfPossible()

template<typename T >

T QFFmpeg::dequeueIfPossible

(

std::queue< T > &

queue

)

Definition at line 42 of file qffmpegrecordingengine_p.h.

References queue.

deviceTypes() [1/2]

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

static

Definition at line 143 of file qffmpeghwaccel.cpp.

References QSet< T >::begin(), checkHwType(), codec, QSet< T >::end(), isHwPixelFormat(), it, pixelFormatForHwDevice(), preferredHardwareAccelerators, qCDebug, QTimer::start(), and timer.

Referenced by QFFmpeg::HWAccel::decodingDeviceTypes(), deviceTypes(), QFFmpeg::HWAccel::encodingDeviceTypes(), and findCodecWithHwAccel().

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deviceTypes() [2/2]

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

static

Definition at line 185 of file qffmpeghwaccel.cpp.

References deviceType(), deviceTypes(), QString::fromUtf8(), qgetenv(), and qWarning.

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err2str()

QString QFFmpeg::err2str ( int errnum )

inline

Definition at line 64 of file qffmpeg_p.h.

References QString::fromLocal8Bit().

Referenced by QFFmpeg::Codec::create(), QFFmpeg::HWAccel::createFramesContext(), QFFmpeg::VideoFrameEncoder::open(), QFFmpeg::VideoEncoder::processOne(), QFFmpeg::VideoFrameEncoder::retrievePacket(), and QFFmpeg::VideoFrameEncoder::sendFrame().

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findAVDecoder()

const AVCodec * QFFmpeg::findAVDecoder	(	AVCodecID	codecId,
		const std::optional< AVHWDeviceType > &	deviceType,
		const std::optional< PixelOrSampleFormat > &	format )

Definition at line 427 of file qffmpeg.cpp.

References codecId(), and deviceType().

Referenced by QFFmpegMediaFormatInfo::QFFmpegMediaFormatInfo(), QFFmpeg::Codec::create(), and QFFmpeg::HWAccel::findDecoderWithHwAccel().

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findAVEncoder() [1/2]

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

Definition at line 439 of file qffmpeg.cpp.

References codecId().

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findAVEncoder() [2/2]

const AVCodec * QFFmpeg::findAVEncoder	(	AVCodecID	codecId,
		const std::optional< AVHWDeviceType > &	deviceType,
		const std::optional< PixelOrSampleFormat > &	format )

Definition at line 433 of file qffmpeg.cpp.

References codecId(), and deviceType().

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

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findAVFormat()

template<typename Format , typename Predicate >

Format QFFmpeg::findAVFormat	(	const Format *	fmts,
		const Predicate &	predicate )

Definition at line 184 of file qffmpeg_p.h.

References BestAVScore, findBestAVFormat(), fmt, NotSuitableAVScore, and predicate.

Referenced by getFormat(), and hasAVFormat().

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findBestAVFormat()

template<typename Format , typename CalculateScore >

std::pair< Format, AVScore > QFFmpeg::findBestAVFormat	(	const Format *	fmts,
		const CalculateScore &	calculateScore )

Definition at line 210 of file qffmpeg_p.h.

References findBestAVValue().

Referenced by adjustSampleFormat(), findAVFormat(), findSwEncoder(), findTargetFormat(), findTargetSWFormat(), and getFormat().

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findBestAVValue()

template<typename Value , typename CalculateScore >

auto QFFmpeg::findBestAVValue	(	const Value *	values,
		const CalculateScore &	calculateScore,
		Value	invalidValue = {} )

Definition at line 193 of file qffmpeg_p.h.

Referenced by adjustChannelLayout(), adjustFrameRate(), adjustSampleRate(), and findBestAVFormat().

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findCodecWithHwAccel()

template<typename CodecFinder >

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

Definition at line 210 of file qffmpeghwaccel.cpp.

References codec, QFFmpeg::HWAccel::create(), deviceTypes(), and qCDebug.

Referenced by QFFmpeg::HWAccel::findDecoderWithHwAccel(), and QFFmpeg::HWAccel::findEncoderWithHwAccel().

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findHwEncoder()

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

Definition at line 126 of file qffmpegvideoencoderutils.cpp.

References QFFmpeg::HWAccel::findEncoderWithHwAccel(), QSize::height(), Q_ASSERT, and QSize::width().

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findSwEncoder()

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

Definition at line 147 of file qffmpegvideoencoderutils.cpp.

References codec, findAVEncoder(), findBestAVFormat(), MinAVScore, and targetSwFormatScoreCalculator().

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findTargetFormat()

AVPixelFormat QFFmpeg::findTargetFormat	(	AVPixelFormat	sourceFormat,
		AVPixelFormat	sourceSWFormat,
		const AVCodec *	codec,
		const HWAccel *	accel )

Definition at line 95 of file qffmpegvideoencoderutils.cpp.

References codec, QFFmpeg::HWAccel::constraints(), findBestAVFormat(), findTargetSWFormat(), hasAVFormat(), QFFmpeg::HWAccel::hwFormat(), isHwFormatAcceptedByCodec(), Q_UNUSED, qWarning, and targetSwFormatScoreCalculator().

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findTargetSWFormat()

AVPixelFormat QFFmpeg::findTargetSWFormat	(	AVPixelFormat	sourceSWFormat,
		const AVCodec *	codec,
		const HWAccel &	accel )

Definition at line 78 of file qffmpegvideoencoderutils.cpp.

References codec, QFFmpeg::HWAccel::constraints(), findBestAVFormat(), and targetSwFormatScoreCalculator().

Referenced by findTargetFormat().

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fourccFromPixelFormat()

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

static

Definition at line 68 of file qffmpeghwaccel_vaapi.cpp.

References DRM_FORMAT_ABGR8888, DRM_FORMAT_GR1616, DRM_FORMAT_GR88, DRM_FORMAT_R16, DRM_FORMAT_R8, DRM_FORMAT_RG1616, DRM_FORMAT_RG88, DRM_FORMAT_RGBA8888, QVideoFrameFormat::Format_ABGR8888, QVideoFrameFormat::Format_ARGB8888, QVideoFrameFormat::Format_ARGB8888_Premultiplied, QVideoFrameFormat::Format_AYUV, QVideoFrameFormat::Format_AYUV_Premultiplied, QVideoFrameFormat::Format_BGRA8888, QVideoFrameFormat::Format_BGRA8888_Premultiplied, QVideoFrameFormat::Format_BGRX8888, QVideoFrameFormat::Format_IMC1, QVideoFrameFormat::Format_IMC2, QVideoFrameFormat::Format_IMC3, QVideoFrameFormat::Format_IMC4, QVideoFrameFormat::Format_Invalid, QVideoFrameFormat::Format_Jpeg, QVideoFrameFormat::Format_NV12, QVideoFrameFormat::Format_NV21, QVideoFrameFormat::Format_P010, QVideoFrameFormat::Format_P016, QVideoFrameFormat::Format_RGBA8888, QVideoFrameFormat::Format_RGBX8888, QVideoFrameFormat::Format_SamplerExternalOES, QVideoFrameFormat::Format_SamplerRect, QVideoFrameFormat::Format_UYVY, QVideoFrameFormat::Format_XBGR8888, QVideoFrameFormat::Format_XRGB8888, QVideoFrameFormat::Format_Y16, QVideoFrameFormat::Format_Y8, QVideoFrameFormat::Format_YUV420P, QVideoFrameFormat::Format_YUV420P10, QVideoFrameFormat::Format_YUV422P, QVideoFrameFormat::Format_YUYV, and QVideoFrameFormat::Format_YV12.

freeQVideoFrame()

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

static

Definition at line 119 of file qffmpegvideoencoder.cpp.

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

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fromAvColorTransfer()

QVideoFrameFormat::ColorTransfer QFFmpeg::fromAvColorTransfer

(

AVColorTransferCharacteristic

colorTrc

)

Definition at line 590 of file qffmpeg.cpp.

References QVideoFrameFormat::ColorTransfer_BT601, QVideoFrameFormat::ColorTransfer_BT709, QVideoFrameFormat::ColorTransfer_Gamma22, QVideoFrameFormat::ColorTransfer_Gamma28, QVideoFrameFormat::ColorTransfer_Linear, QVideoFrameFormat::ColorTransfer_ST2084, QVideoFrameFormat::ColorTransfer_STD_B67, and QVideoFrameFormat::ColorTransfer_Unknown.

Referenced by QFFmpegVideoBuffer::colorTransfer().

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getAVFrameDuration()

int64_t QFFmpeg::getAVFrameDuration ( const AVFrame & frame )

inline

Definition at line 91 of file qffmpeg_p.h.

References frame, and Q_UNUSED.

Referenced by QFFmpeg::Frame::Data::Data().

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getAVFrameTime()

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

inline

Definition at line 81 of file qffmpeg_p.h.

References frame.

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

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getFormat() [1/2]

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

Definition at line 283 of file qffmpeghwaccel.cpp.

References DefaultAVScore, findAVFormat(), findBestAVFormat(), i, isAVFormatSupported(), isHwPixelFormat(), isNoConversionFormat(), NotSuitableAVScore, and qCDebug.

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

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getFormat() [2/2]

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

hasAVFormat()

template<typename Format >

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

Definition at line 178 of file qffmpeg_p.h.

References findAVFormat().

Referenced by findTargetFormat(), and isAVFormatSupported().

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isAVCodecExperimental()

bool QFFmpeg::isAVCodecExperimental

(

const AVCodec *

codec

)

Definition at line 462 of file qffmpeg.cpp.

References codec.

Referenced by applyExperimentalCodecOptions().

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isAVFormatSupported()

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

Definition at line 445 of file qffmpeg.cpp.

References codec, and hasAVFormat().

Referenced by getFormat().

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isHwFormatAcceptedByCodec()

static bool QFFmpeg::isHwFormatAcceptedByCodec ( AVPixelFormat pixFormat )

static

Definition at line 67 of file qffmpegvideoencoderutils.cpp.

Referenced by findTargetFormat().

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isHwPixelFormat()

bool QFFmpeg::isHwPixelFormat

(

AVPixelFormat

format

)

Definition at line 456 of file qffmpeg.cpp.

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

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isNoConversionFormat()

static bool QFFmpeg::isNoConversionFormat ( AVPixelFormat f )

static

Definition at line 243 of file qffmpeghwaccel.cpp.

References QFFmpegVideoBuffer::toQtPixelFormat().

Referenced by getFormat().

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isSwPixelFormat()

bool QFFmpeg::isSwPixelFormat ( AVPixelFormat format )

inline

Definition at line 220 of file qffmpeg_p.h.

References isHwPixelFormat().

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

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loadHWContext()

static AVBufferUPtr QFFmpeg::loadHWContext ( AVHWDeviceType type )

static

Definition at line 60 of file qffmpeghwaccel.cpp.

References qCDebug, and ret.

Referenced by checkHwType(), and QFFmpeg::HWAccel::create().

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makeAVFrame()

AVFrameUPtr QFFmpeg::makeAVFrame ( )

inline

Definition at line 136 of file qffmpeg_p.h.

Referenced by allocHWFrame(), QAVFSampleBufferDelegate::captureOutput:didOutputSampleBuffer:fromConnection:, QFFmpegVideoBuffer::convertSWFrame(), QAndroidCamera::frameAvailable(), QFFmpegVideoBuffer::map(), QFFmpeg::AudioEncoder::processOne(), QFFmpeg::VideoEncoder::processOne(), and QFFmpeg::VideoFrameEncoder::sendFrame().

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mul() [1/2]

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

inline

Definition at line 39 of file qffmpeg_p.h.

Referenced by QFFmpeg::Frame::Data::Data(), QFFmpegVideoBuffer::maxNits(), streamTimeToUs(), timeStampMs(), and timeStampUs().

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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.

operator==()

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

Definition at line 65 of file qffmpegavaudioformat.cpp.

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

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().

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pixelFormatForHwDevice()

AVPixelFormat QFFmpeg::pixelFormatForHwDevice

(

AVHWDeviceType

deviceType

)

Definition at line 476 of file qffmpeg.cpp.

References deviceType().

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

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precheckDriver()

static bool QFFmpeg::precheckDriver ( AVHWDeviceType type )

static

Definition at line 76 of file qffmpeghwaccel.cpp.

References QFile::exists(), QLibrary::load(), Q_UNUSED, and QLibrary::unload().

Referenced by checkHwType().

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Q_LOGGING_CATEGORY() [1/7]

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

static

Q_LOGGING_CATEGORY() [2/7]

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

static

Q_LOGGING_CATEGORY() [3/7]

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

static

Q_LOGGING_CATEGORY() [4/7]

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

static

Q_LOGGING_CATEGORY() [5/7]

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

static

Q_LOGGING_CATEGORY() [6/7]

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

static

Q_LOGGING_CATEGORY() [7/7]

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

static

readQIODevice()

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

Definition at line 12 of file qffmpegioutils.cpp.

References Q_ASSERT.

seekQIODevice()

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

Definition at line 30 of file qffmpegioutils.cpp.

References QIODevice::isSequential(), QIODevice::pos(), Q_ASSERT, QIODevice::seek(), and QIODevice::size().

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

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setAVFrameTime()

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

inline

Definition at line 71 of file qffmpeg_p.h.

References frame, and Q_UNUSED.

Referenced by QFFmpeg::AudioEncoder::processOne(), QFFmpeg::VideoEncoder::processOne(), and QFFmpeg::VideoFrameEncoder::sendFrame().

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streamSideData()

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

Definition at line 538 of file qffmpeg.cpp.

References item, nullptr, Q_ASSERT, and QGraphicsItem::type().

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streamTimeToUs()

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

static

Definition at line 19 of file qffmpegdemuxer.cpp.

References mul(), Q_ASSERT, and time.

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

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targetSwFormatScoreCalculator()

static auto QFFmpeg::targetSwFormatScoreCalculator ( AVPixelFormat sourceFormat )

static

Definition at line 61 of file qffmpegvideoencoderutils.cpp.

References calculateTargetSwFormatScore(), and fmt.

Referenced by findSwEncoder(), findTargetFormat(), and findTargetSWFormat().

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timeStampMs()

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

inline

Definition at line 49 of file qffmpeg_p.h.

References base, and mul().

Referenced by QFFmpeg::VideoFrameEncoder::retrievePacket(), and QFFmpeg::Codec::toMs().

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timeStampUs()

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

inline

Definition at line 54 of file qffmpeg_p.h.

References base, and mul().

Referenced by QFFmpeg::Codec::toUs().

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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.

References Q_ASSERT.

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

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Variable Documentation

apply

ApplyOptions QFFmpeg::apply

Definition at line 287 of file qffmpegencoderoptions.cpp.

[struct]

const struct { ... } QFFmpeg::audioCodecOptionTable[]

Initial value:

= {
    { nullptr, nullptr }
}

Referenced by applyAudioEncoderOptions().

BestAVScore

constexpr AVScore QFFmpeg::BestAVScore = std::numeric_limits<AVScore>::max()

constexpr

Definition at line 159 of file qffmpeg_p.h.

Referenced by adjustChannelLayout(), adjustSampleFormat(), adjustSampleRate(), calculateScoreByChannelsMask(), and findAVFormat().

DefaultAVScore

constexpr AVScore QFFmpeg::DefaultAVScore = 0

constexpr

Definition at line 160 of file qffmpeg_p.h.

Referenced by calculateTargetSwFormatScore(), and getFormat().

MinAVScore

constexpr AVScore QFFmpeg::MinAVScore = NotSuitableAVScore + 1

constexpr

Definition at line 162 of file qffmpeg_p.h.

Referenced by findSwEncoder().

name

const char* QFFmpeg::name

Definition at line 286 of file qffmpegencoderoptions.cpp.

NotSuitableAVScore

constexpr AVScore QFFmpeg::NotSuitableAVScore = std::numeric_limits<AVScore>::min()

constexpr

Definition at line 161 of file qffmpeg_p.h.

Referenced by adjustChannelLayout(), calculateTargetSwFormatScore(), findAVFormat(), and getFormat().

PersistentId

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

static

Definition at line 13 of file qffmpegplaybackengineobject.cpp.

preferredHardwareAccelerators

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

static

Initial value:

= {
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
}

Definition at line 42 of file qffmpeghwaccel.cpp.

Referenced by deviceTypes().

shouldPauseStreams

constexpr bool QFFmpeg::shouldPauseStreams = false

staticconstexpr

Definition at line 40 of file qffmpegplaybackengine.cpp.

[struct]

const struct { ... } QFFmpeg::videoCodecOptionTable[]

Referenced by applyVideoEncoderOptions().