96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
/******************************************************************************
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QtAV: Multimedia framework based on Qt and FFmpeg
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Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
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* This file is part of QtAV
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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******************************************************************************/
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#include "AudioDecoder.h"
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#include "AVDecoder_p.h"
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#include "AVCompat.h"
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#include "AudioResampler.h"
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#include "factory.h"
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#include "Logger.h"
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namespace FAV {
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FACTORY_DEFINE(AudioDecoder)
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// TODO: why vc can not declare extern func in a class member? resolved as &func@@YAXXZ
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extern bool RegisterAudioDecoderFFmpeg_Man();
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void AudioDecoder::registerAll() {
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static bool done = false;
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if (done)
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return;
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done = true;
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RegisterAudioDecoderFFmpeg_Man();
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}
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QStringList AudioDecoder::supportedCodecs()
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{
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static QStringList codecs;
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if (!codecs.isEmpty())
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return codecs;
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avcodec_register_all();
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AVCodec* c = NULL;
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while ((c=av_codec_next(c))) {
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if (!av_codec_is_decoder(c) || c->type != AVMEDIA_TYPE_AUDIO)
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continue;
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codecs.append(QString::fromLatin1(c->name));
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}
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return codecs;
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}
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AudioDecoderPrivate::AudioDecoderPrivate()
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: AVDecoderPrivate()
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, resampler(0)
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{
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resampler = AudioResampler::create(AudioResamplerId_FF);
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if (!resampler)
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resampler = AudioResampler::create(AudioResamplerId_Libav);
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if (resampler)
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resampler->setOutSampleFormat(AV_SAMPLE_FMT_FLT);
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}
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AudioDecoderPrivate::~AudioDecoderPrivate()
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{
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if (resampler) {
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delete resampler;
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resampler = 0;
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}
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}
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AudioDecoder::AudioDecoder(AudioDecoderPrivate &d):
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AVDecoder(d)
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{
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}
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QString AudioDecoder::name() const
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{
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return QLatin1String(AudioDecoder::name(id()));
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}
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QByteArray AudioDecoder::data() const
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{
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return d_func().decoded;
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}
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AudioResampler* AudioDecoder::resampler()
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{
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return d_func().resampler;
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}
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} //namespace FAV
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