diff options
Diffstat (limited to 'src/multimedia/platform/gstreamer/common/qgstcodecsinfo.cpp')
| -rw-r--r-- | src/multimedia/platform/gstreamer/common/qgstcodecsinfo.cpp | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/src/multimedia/platform/gstreamer/common/qgstcodecsinfo.cpp b/src/multimedia/platform/gstreamer/common/qgstcodecsinfo.cpp deleted file mode 100644 index 06e034198..000000000 --- a/src/multimedia/platform/gstreamer/common/qgstcodecsinfo.cpp +++ /dev/null @@ -1,273 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qgstcodecsinfo_p.h" -#include "qgstutils_p.h" -#include <QtCore/qset.h> - -#include <gst/pbutils/pbutils.h> - -static QSet<QString> streamTypes(GstElementFactory *factory, GstPadDirection direction) -{ - QSet<QString> types; - const GList *pads = gst_element_factory_get_static_pad_templates(factory); - for (const GList *pad = pads; pad; pad = g_list_next(pad)) { - GstStaticPadTemplate *templ = reinterpret_cast<GstStaticPadTemplate *>(pad->data); - if (templ->direction == direction) { - GstCaps *caps = gst_static_caps_get(&templ->static_caps); - for (uint i = 0; i < gst_caps_get_size(caps); ++i) { - GstStructure *structure = gst_caps_get_structure(caps, i); - types.insert(QString::fromUtf8(gst_structure_get_name(structure))); - } - gst_caps_unref(caps); - } - } - - return types; -} - -QGstCodecsInfo::QGstCodecsInfo(QGstCodecsInfo::ElementType elementType) -{ - updateCodecs(elementType); - for (auto &codec : supportedCodecs()) { - GstElementFactory *factory = gst_element_factory_find(codecElement(codec).constData()); - if (factory) { - GstPadDirection direction = elementType == Muxer ? GST_PAD_SINK : GST_PAD_SRC; - m_streamTypes.insert(codec, streamTypes(factory, direction)); - gst_object_unref(GST_OBJECT(factory)); - } - } -} - -QStringList QGstCodecsInfo::supportedCodecs() const -{ - return m_codecs; -} - -QString QGstCodecsInfo::codecDescription(const QString &codec) const -{ - return m_codecInfo.value(codec).description; -} - -QByteArray QGstCodecsInfo::codecElement(const QString &codec) const - -{ - return m_codecInfo.value(codec).elementName; -} - -QStringList QGstCodecsInfo::codecOptions(const QString &codec) const -{ - QStringList options; - - QByteArray elementName = m_codecInfo.value(codec).elementName; - if (elementName.isEmpty()) - return options; - - GstElement *element = gst_element_factory_make(elementName, nullptr); - if (element) { - guint numProperties; - GParamSpec **properties = g_object_class_list_properties(G_OBJECT_GET_CLASS(element), - &numProperties); - for (guint j = 0; j < numProperties; ++j) { - GParamSpec *property = properties[j]; - // ignore some properties - if (strcmp(property->name, "name") == 0 || strcmp(property->name, "parent") == 0) - continue; - - options.append(QLatin1String(property->name)); - } - g_free(properties); - gst_object_unref(element); - } - - return options; -} - -void QGstCodecsInfo::updateCodecs(ElementType elementType) -{ - m_codecs.clear(); - m_codecInfo.clear(); - - GstPadDirection padDirection = GST_PAD_SRC; - if (elementType == Demuxer || elementType == AudioDecoder || elementType == VideoDecoder) - padDirection = GST_PAD_SINK; - - GList *elements = elementFactories(elementType); - - QSet<QByteArray> fakeEncoderMimeTypes; - fakeEncoderMimeTypes << "unknown/unknown" - << "audio/x-raw-int" << "audio/x-raw-float" - << "video/x-raw-yuv" << "video/x-raw-rgb"; - - QSet<QByteArray> fieldsToAdd; - fieldsToAdd << "mpegversion" << "layer" << "layout" - << "variant"; - - GList *element = elements; - while (element) { - GstElementFactory *factory = (GstElementFactory *)element->data; - element = element->next; - - const GList *padTemplates = gst_element_factory_get_static_pad_templates(factory); - while (padTemplates) { - GstStaticPadTemplate *padTemplate = (GstStaticPadTemplate *)padTemplates->data; - padTemplates = padTemplates->next; - - if (padTemplate->direction == padDirection) { - GstCaps *caps = gst_static_caps_get(&padTemplate->static_caps); - for (uint i=0; i<gst_caps_get_size(caps); i++) { - const GstStructure *structure = gst_caps_get_structure(caps, i); - - //skip "fake" encoders - if (fakeEncoderMimeTypes.contains(gst_structure_get_name(structure))) - continue; - - GstStructure *newStructure = qt_gst_structure_new_empty(gst_structure_get_name(structure)); - - //add structure fields to distinguish between formats with similar mime types, - //like audio/mpeg - for (int j=0; j<gst_structure_n_fields(structure); j++) { - const gchar* fieldName = gst_structure_nth_field_name(structure, j); - if (fieldsToAdd.contains(fieldName)) { - const GValue *value = gst_structure_get_value(structure, fieldName); - GType valueType = G_VALUE_TYPE(value); - - //don't add values of range type, - //gst_pb_utils_get_codec_description complains about not fixed caps - - if (valueType != GST_TYPE_INT_RANGE && valueType != GST_TYPE_DOUBLE_RANGE && - valueType != GST_TYPE_FRACTION_RANGE && valueType != GST_TYPE_LIST && - valueType != GST_TYPE_ARRAY) - gst_structure_set_value(newStructure, fieldName, value); - } - } - - GstCaps *newCaps = gst_caps_new_full(newStructure, nullptr); - - gchar *capsString = gst_caps_to_string(newCaps); - QString codec = QLatin1String(capsString); - if (capsString) - g_free(capsString); - // skip stuff that's not really a known audio/video codec - if (codec.startsWith("application")) - continue; - GstRank rank = GstRank(gst_plugin_feature_get_rank(GST_PLUGIN_FEATURE(factory))); - - // If two elements provide the same codec, use the highest ranked one - QMap<QString, CodecInfo>::const_iterator it = m_codecInfo.constFind(codec); - if (it == m_codecInfo.constEnd() || it->rank < rank) { - if (it == m_codecInfo.constEnd()) - m_codecs.append(codec); - - CodecInfo info; - info.elementName = gst_plugin_feature_get_name(GST_PLUGIN_FEATURE(factory)); - - gchar *description = gst_pb_utils_get_codec_description(newCaps); - info.description = QString::fromUtf8(description); - if (description) - g_free(description); - - info.rank = rank; - - m_codecInfo.insert(codec, info); - } - - gst_caps_unref(newCaps); - } - gst_caps_unref(caps); - } - } - } - - gst_plugin_feature_list_free(elements); -} - -GList *QGstCodecsInfo::elementFactories(ElementType elementType) const -{ - GstElementFactoryListType gstElementType = 0; - switch (elementType) { - case AudioEncoder: - gstElementType = GST_ELEMENT_FACTORY_TYPE_AUDIO_ENCODER; - break; - case VideoEncoder: - // GST_ELEMENT_FACTORY_TYPE_VIDEO_ENCODER also lists image encoders. We don't want these here. - gstElementType = (GstElementFactoryListType)(GST_ELEMENT_FACTORY_TYPE_ENCODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO); - break; - case Muxer: - gstElementType = GST_ELEMENT_FACTORY_TYPE_MUXER; - break; - case AudioDecoder: - gstElementType = (GstElementFactoryListType)(GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO); - break; - case VideoDecoder: - gstElementType = (GstElementFactoryListType)(GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO); - break; - case Demuxer: - gstElementType = GST_ELEMENT_FACTORY_TYPE_DEMUXER; - break; - } - - GList *list = gst_element_factory_list_get_elements(gstElementType, GST_RANK_MARGINAL); - if (elementType == AudioEncoder) { - // Manually add "audioconvert" to the list - // to allow linking with various containers. - auto factory = gst_element_factory_find("audioconvert"); - if (factory) - list = g_list_prepend(list, factory); - } - - return list; -} - -QSet<QString> QGstCodecsInfo::supportedStreamTypes(const QString &codec) const -{ - return m_streamTypes.value(codec); -} - -QStringList QGstCodecsInfo::supportedCodecs(const QSet<QString> &types) const -{ - QStringList result; - for (auto &candidate : supportedCodecs()) { - auto candidateTypes = supportedStreamTypes(candidate); - if (candidateTypes.intersects(types)) - result << candidate; - } - - return result; -} |