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/***************************************************************************
* Copyright (C) 2009-2018 by Ilya Kotov *
* forkotov02@ya.ru *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <stdint.h>
#include "ffmpegmetadatamodel.h"
FFmpegMetaDataModel::FFmpegMetaDataModel(const QString &path, QObject *parent) : MetaDataModel(parent)
{
m_in = 0;
#ifdef Q_OS_WIN
if (avformat_open_input(&m_in, path.toUtf8().constData(), 0, 0) < 0)
#else
if (avformat_open_input(&m_in, path.toLocal8Bit().constData(), 0, 0) < 0)
#endif
return;
avformat_find_stream_info(m_in, 0);
av_read_play(m_in);
}
FFmpegMetaDataModel::~FFmpegMetaDataModel()
{
if(m_in)
avformat_close_input(&m_in);
}
QHash<QString, QString> FFmpegMetaDataModel::audioProperties()
{
QHash<QString, QString> ap;
if(!m_in)
return ap;
QString text = QString("%1").arg(int(m_in->duration/AV_TIME_BASE)/60);
text +=":"+QString("%1").arg(int(m_in->duration/AV_TIME_BASE)%60,2,10,QChar('0'));
ap.insert(tr("Length"), text);
ap.insert(tr("File size"), tr("%1 KB").arg(avio_size(m_in->pb) / 1000));
ap.insert(tr("Bitrate"), tr("%1 kbps").arg(m_in->bit_rate/1000));
int idx = av_find_best_stream(m_in, AVMEDIA_TYPE_AUDIO, -1, -1, 0, 0);
if(idx >= 0)
{
#if (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57,48,0)) //ffmpeg-3.1: 57.48.101
AVCodecParameters *c = m_in->streams[idx]->codecpar;
#else
AVCodecContext *c = m_in->streams[idx]->codec;
#endif
ap.insert(tr("Sample rate"), tr("%1 Hz").arg(c->sample_rate));
ap.insert(tr("Channels"), QString("%1").arg(c->channels));
}
return ap;
}
QPixmap FFmpegMetaDataModel::cover()
{
if(!m_in)
return QPixmap();
#if (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57,48,0)) //ffmpeg-3.1: 57.48.101
AVCodecParameters *c = 0;
#else
AVCodecContext *c = 0;
#endif
for (uint idx = 0; idx < m_in->nb_streams; idx++)
{
#if (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57,48,0)) //ffmpeg-3.1: 57.48.101
c = m_in->streams[idx]->codecpar;
#else
c = m_in->streams[idx]->codec;
#endif
if (c->codec_type == AVMEDIA_TYPE_VIDEO && c->codec_id == AV_CODEC_ID_MJPEG)
break;
}
if (c)
{
AVPacket pkt;
av_read_frame(m_in, &pkt);
QPixmap pix;
pix.loadFromData(QByteArray((const char*)pkt.data, pkt.size));
return pix;
}
return QPixmap();
}
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