qffmpeg_p.h File Reference

#include <private/qtmultimediaglobal_p.h>
#include <qstring.h>
#include <optional>
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <libswresample/swresample.h>
#include <libavutil/avutil.h>
#include <libswscale/swscale.h>

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Classes
struct	QFFmpeg::AVDictionaryHolder
struct	QFFmpeg::AVDeleter< FunctionType, F >

Namespaces
namespace	QFFmpeg

Macros
#define	QT_FFMPEG_OLD_CHANNEL_LAYOUT   (LIBAVCODEC_VERSION_INT < AV_VERSION_INT(59,24,100))
#define	QT_FFMPEG_HAS_VULKAN    (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(58, 91, 100))
#define	QT_FFMPEG_HAS_FRAME_TIME_BASE    (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(59, 18, 100))
#define	QT_FFMPEG_HAS_FRAME_DURATION    (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(60, 3, 100))

Typedefs
using	QFFmpeg::AVFrameUPtr = std::unique_ptr< AVFrame, AVDeleter< decltype(&av_frame_free), &av_frame_free > >
using	QFFmpeg::AVPacketUPtr = std::unique_ptr< AVPacket, AVDeleter< decltype(&av_packet_free), &av_packet_free > >
using	QFFmpeg::AVCodecContextUPtr = std::unique_ptr< AVCodecContext, AVDeleter< decltype(&avcodec_free_context), &avcodec_free_context > >
using	QFFmpeg::AVBufferUPtr = std::unique_ptr< AVBufferRef, AVDeleter< decltype(&av_buffer_unref), &av_buffer_unref > >
using	QFFmpeg::AVHWFramesConstraintsUPtr = std::unique_ptr< AVHWFramesConstraints, AVDeleter< decltype(&av_hwframe_constraints_free), &av_hwframe_constraints_free > >
using	QFFmpeg::PixelOrSampleFormat = int
using	QFFmpeg::AVScore = int

Functions
std::optional< qint64 >	QFFmpeg::mul (qint64 a, AVRational b)
std::optional< qreal >	QFFmpeg::mul (qreal a, AVRational b)
std::optional< qint64 >	QFFmpeg::timeStampMs (qint64 ts, AVRational base)
std::optional< qint64 >	QFFmpeg::timeStampUs (qint64 ts, AVRational base)
std::optional< float >	QFFmpeg::toFloat (AVRational r)
QString	QFFmpeg::err2str (int errnum)
void	QFFmpeg::setAVFrameTime (AVFrame &frame, int64_t pts, const AVRational &timeBase)
void	QFFmpeg::getAVFrameTime (const AVFrame &frame, int64_t &pts, AVRational &timeBase)
int64_t	QFFmpeg::getAVFrameDuration (const AVFrame &frame)
AVFrameUPtr	QFFmpeg::makeAVFrame ()
const AVCodec *	QFFmpeg::findAVDecoder (AVCodecID codecId, const std::optional< AVHWDeviceType > &deviceType, const std::optional< PixelOrSampleFormat > &format)
const AVCodec *	QFFmpeg::findAVEncoder (AVCodecID codecId, const std::optional< AVHWDeviceType > &deviceType, const std::optional< PixelOrSampleFormat > &format)
const AVCodec *	QFFmpeg::findAVEncoder (AVCodecID codecId, const std::function< AVScore(const AVCodec *)> &scoresGetter)
bool	QFFmpeg::isAVFormatSupported (const AVCodec *codec, PixelOrSampleFormat format)
template<typename Format >
bool	QFFmpeg::hasAVFormat (const Format *fmts, Format format)
template<typename Format , typename Predicate >
Format	QFFmpeg::findAVFormat (const Format *fmts, const Predicate &predicate)
template<typename Format , typename CalculateScore >
std::pair< Format, AVScore >	QFFmpeg::findBestAVFormat (const Format *fmts, const CalculateScore &calculateScore)
bool	QFFmpeg::isHwPixelFormat (AVPixelFormat format)
bool	QFFmpeg::isSwPixelFormat (AVPixelFormat format)
AVPixelFormat	QFFmpeg::pixelFormatForHwDevice (AVHWDeviceType deviceType)

Variables
constexpr AVScore	QFFmpeg::BestAVScore = std::numeric_limits<AVScore>::max()
constexpr AVScore	QFFmpeg::DefaultAVScore = 0
constexpr AVScore	QFFmpeg::NotSuitableAVScore = std::numeric_limits<AVScore>::min()
constexpr AVScore	QFFmpeg::MinAVScore = NotSuitableAVScore + 1

Macro Definition Documentation

QT_FFMPEG_HAS_FRAME_DURATION

#define QT_FFMPEG_HAS_FRAME_DURATION    (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(60, 3, 100))

Definition at line 23 of file qffmpeg_p.h.

QT_FFMPEG_HAS_FRAME_TIME_BASE

#define QT_FFMPEG_HAS_FRAME_TIME_BASE    (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(59, 18, 100))

Definition at line 21 of file qffmpeg_p.h.

QT_FFMPEG_HAS_VULKAN

#define QT_FFMPEG_HAS_VULKAN    (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(58, 91, 100))

Definition at line 19 of file qffmpeg_p.h.

QT_FFMPEG_OLD_CHANNEL_LAYOUT

#define QT_FFMPEG_OLD_CHANNEL_LAYOUT   (LIBAVCODEC_VERSION_INT < AV_VERSION_INT(59,24,100))

Definition at line 18 of file qffmpeg_p.h.