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7fab52b62e
the C API does not throw exceptions (or should not), it is wrapper around the C++ API tho (usually it is the opposite) Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
/* This file is part of the KDE project
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Copyright (C) 2022 Ivailo Monev <xakepa10@gmail.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2, as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "ffmpegthumbnailer.h"
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#include <QFile>
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#include <QImage>
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#include <kdebug.h>
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#include <kdemacros.h>
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#include <libffmpegthumbnailer/videothumbnailerc.h>
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void ffmpeg_log_callback(ThumbnailerLogLevel ffmpegloglevel, const char* ffmpegmessage)
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{
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switch (ffmpegloglevel) {
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case ThumbnailerLogLevel::ThumbnailerLogLevelInfo: {
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kDebug() << ffmpegmessage;
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}
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case ThumbnailerLogLevel::ThumbnailerLogLevelError: {
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kError() << ffmpegmessage;
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}
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}
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}
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extern "C"
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{
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KDE_EXPORT ThumbCreator* new_creator()
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{
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return new FFMpegThumbnailer();
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}
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}
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FFMpegThumbnailer::FFMpegThumbnailer()
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{
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}
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bool FFMpegThumbnailer::create(const QString &path, int width, int heigth, QImage &img)
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{
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video_thumbnailer* ffmpegthumb = video_thumbnailer_create();
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if (!ffmpegthumb) {
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kWarning() << "Could not create video thumbnailer";
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return false;
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}
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video_thumbnailer_set_log_callback(ffmpegthumb, ffmpeg_log_callback);
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image_data* ffmpegimage = video_thumbnailer_create_image_data();
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if (!ffmpegimage) {
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kWarning() << "Could not create video thumbnailer image";
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video_thumbnailer_destroy(ffmpegthumb);
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return false;
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}
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const QByteArray pathbytes = QFile::encodeName(path);
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ffmpegthumb->thumbnail_size = qMax(width, heigth);
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ffmpegthumb->seek_percentage = 20;
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ffmpegthumb->overlay_film_strip = 1;
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ffmpegthumb->thumbnail_image_type = ThumbnailerImageType::Png;
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const int ffmpegresult = video_thumbnailer_generate_thumbnail_to_buffer(
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ffmpegthumb,
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pathbytes.constData(),
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ffmpegimage
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);
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if (ffmpegresult != 0) {
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kWarning() << "Could not generate video thumbnail";
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video_thumbnailer_destroy_image_data(ffmpegimage);
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video_thumbnailer_destroy(ffmpegthumb);
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return false;
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}
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img.loadFromData(
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reinterpret_cast<char*>(ffmpegimage->image_data_ptr),
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ffmpegimage->image_data_size,
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"PNG"
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);
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if (img.isNull()) {
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kWarning() << "Could not load the video thumbnail";
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video_thumbnailer_destroy_image_data(ffmpegimage);
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video_thumbnailer_destroy(ffmpegthumb);
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return false;
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}
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video_thumbnailer_destroy_image_data(ffmpegimage);
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video_thumbnailer_destroy(ffmpegthumb);
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return true;
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}
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ThumbCreator::Flags FFMpegThumbnailer::flags() const
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{
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return ThumbCreator::DrawFrame;
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}
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