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39
40#ifndef QGSTUTILS_P_H
41#define QGSTUTILS_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <private/qgsttools_global_p.h>
55#include <QtCore/qmap.h>
56#include <QtCore/qset.h>
57#include <QtCore/qvector.h>
58#include <gst/gst.h>
59#include <gst/video/video.h>
60#include <qaudioformat.h>
61#include <qcamera.h>
62#include <qabstractvideobuffer.h>
63#include <qvideoframe.h>
64#include <QDebug>
65
66#if GST_CHECK_VERSION(1,0,0)
67# define QT_GSTREAMER_PLAYBIN_ELEMENT_NAME "playbin"
68# define QT_GSTREAMER_CAMERABIN_ELEMENT_NAME "camerabin"
69# define QT_GSTREAMER_COLORCONVERSION_ELEMENT_NAME "videoconvert"
70# define QT_GSTREAMER_RAW_AUDIO_MIME "audio/x-raw"
71# define QT_GSTREAMER_VIDEOOVERLAY_INTERFACE_NAME "GstVideoOverlay"
72#else
73# define QT_GSTREAMER_PLAYBIN_ELEMENT_NAME "playbin2"
74# define QT_GSTREAMER_CAMERABIN_ELEMENT_NAME "camerabin2"
75# define QT_GSTREAMER_COLORCONVERSION_ELEMENT_NAME "ffmpegcolorspace"
76# define QT_GSTREAMER_RAW_AUDIO_MIME "audio/x-raw-int"
77# define QT_GSTREAMER_VIDEOOVERLAY_INTERFACE_NAME "GstXOverlay"
78#endif
79
80QT_BEGIN_NAMESPACE
81
82class QSize;
83class QVariant;
84class QByteArray;
85class QImage;
86class QVideoSurfaceFormat;
87
88namespace QGstUtils {
89 struct Q_GSTTOOLS_EXPORT CameraInfo
90 {
91 QString name;
92 QString description;
93 int orientation;
94 QCamera::Position position;
95 QByteArray driver;
96 };
97
98 Q_GSTTOOLS_EXPORT QMap<QByteArray, QVariant> gstTagListToMap(const GstTagList *list);
99
100 Q_GSTTOOLS_EXPORT QSize capsResolution(const GstCaps *caps);
101 Q_GSTTOOLS_EXPORT QSize capsCorrectedResolution(const GstCaps *caps);
102 Q_GSTTOOLS_EXPORT QAudioFormat audioFormatForCaps(const GstCaps *caps);
103#if GST_CHECK_VERSION(1,0,0)
104 Q_GSTTOOLS_EXPORT QAudioFormat audioFormatForSample(GstSample *sample);
105#else
106 Q_GSTTOOLS_EXPORT QAudioFormat audioFormatForBuffer(GstBuffer *buffer);
107#endif
108 Q_GSTTOOLS_EXPORT GstCaps *capsForAudioFormat(const QAudioFormat &format);
109 Q_GSTTOOLS_EXPORT void initializeGst();
110 Q_GSTTOOLS_EXPORT QMultimedia::SupportEstimate hasSupport(const QString &mimeType,
111 const QStringList &codecs,
112 const QSet<QString> &supportedMimeTypeSet);
113
114 Q_GSTTOOLS_EXPORT QVector<CameraInfo> enumerateCameras(GstElementFactory *factory = 0);
115 Q_GSTTOOLS_EXPORT QList<QByteArray> cameraDevices(GstElementFactory * factory = 0);
116 Q_GSTTOOLS_EXPORT QString cameraDescription(const QString &device, GstElementFactory * factory = 0);
117 Q_GSTTOOLS_EXPORT QCamera::Position cameraPosition(const QString &device, GstElementFactory * factory = 0);
118 Q_GSTTOOLS_EXPORT int cameraOrientation(const QString &device, GstElementFactory * factory = 0);
119 Q_GSTTOOLS_EXPORT QByteArray cameraDriver(const QString &device, GstElementFactory * factory = 0);
120
121 Q_GSTTOOLS_EXPORT QSet<QString> supportedMimeTypes(bool (*isValidFactory)(GstElementFactory *factory));
122
123#if GST_CHECK_VERSION(1,0,0)
124 Q_GSTTOOLS_EXPORT QImage bufferToImage(GstBuffer *buffer, const GstVideoInfo &info);
125 Q_GSTTOOLS_EXPORT QVideoSurfaceFormat formatForCaps(
126 GstCaps *caps,
127 GstVideoInfo *info = 0,
128 QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle);
129#else
130 Q_GSTTOOLS_EXPORT QImage bufferToImage(GstBuffer *buffer);
131 Q_GSTTOOLS_EXPORT QVideoSurfaceFormat formatForCaps(
132 GstCaps *caps,
133 int *bytesPerLine = 0,
134 QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle);
135#endif
136
137 Q_GSTTOOLS_EXPORT GstCaps *capsForFormats(const QList<QVideoFrame::PixelFormat> &formats);
138 void setFrameTimeStamps(QVideoFrame *frame, GstBuffer *buffer);
139
140 Q_GSTTOOLS_EXPORT void setMetaData(GstElement *element, const QMap<QByteArray, QVariant> &data);
141 Q_GSTTOOLS_EXPORT void setMetaData(GstBin *bin, const QMap<QByteArray, QVariant> &data);
142
143 Q_GSTTOOLS_EXPORT GstCaps *videoFilterCaps();
144
145 Q_GSTTOOLS_EXPORT QSize structureResolution(const GstStructure *s);
146 Q_GSTTOOLS_EXPORT QVideoFrame::PixelFormat structurePixelFormat(const GstStructure *s, int *bpp = 0);
147 Q_GSTTOOLS_EXPORT QSize structurePixelAspectRatio(const GstStructure *s);
148 Q_GSTTOOLS_EXPORT QPair<qreal, qreal> structureFrameRateRange(const GstStructure *s);
149
150 Q_GSTTOOLS_EXPORT QString fileExtensionForMimeType(const QString &mimeType);
151
152#if GST_CHECK_VERSION(0,10,30)
153 Q_GSTTOOLS_EXPORT QVariant fromGStreamerOrientation(const QVariant &value);
154 Q_GSTTOOLS_EXPORT QVariant toGStreamerOrientation(const QVariant &value);
155#endif
156
157 Q_GSTTOOLS_EXPORT bool useOpenGL();
158}
159
160Q_GSTTOOLS_EXPORT void qt_gst_object_ref_sink(gpointer object);
161Q_GSTTOOLS_EXPORT GstCaps *qt_gst_pad_get_current_caps(GstPad *pad);
162Q_GSTTOOLS_EXPORT GstCaps *qt_gst_pad_get_caps(GstPad *pad);
163Q_GSTTOOLS_EXPORT GstStructure *qt_gst_structure_new_empty(const char *name);
164Q_GSTTOOLS_EXPORT gboolean qt_gst_element_query_position(GstElement *element, GstFormat format, gint64 *cur);
165Q_GSTTOOLS_EXPORT gboolean qt_gst_element_query_duration(GstElement *element, GstFormat format, gint64 *cur);
166Q_GSTTOOLS_EXPORT GstCaps *qt_gst_caps_normalize(GstCaps *caps);
167Q_GSTTOOLS_EXPORT const gchar *qt_gst_element_get_factory_name(GstElement *element);
168Q_GSTTOOLS_EXPORT gboolean qt_gst_caps_can_intersect(const GstCaps * caps1, const GstCaps * caps2);
169Q_GSTTOOLS_EXPORT GList *qt_gst_video_sinks();
170Q_GSTTOOLS_EXPORT void qt_gst_util_double_to_fraction(gdouble src, gint *dest_n, gint *dest_d);
171
172Q_GSTTOOLS_EXPORT QDebug operator <<(QDebug debug, GstCaps *caps);
173
174QT_END_NAMESPACE
175
176#endif
177

source code of qtmultimedia/src/gsttools/qgstutils_p.h