Files
fmviewer3/project/fm_viewer/fav/VideoDecoder.cpp
2026-02-21 17:11:31 +09:00

118 lines
4.4 KiB
C++

/******************************************************************************
QtAV: Multimedia framework based on Qt and FFmpeg
Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
* This file is part of QtAV
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#include "VideoDecoder.h"
#include "AVDecoder_p.h"
#include "factory.h"
#include "mkid.h"
#include "Logger.h"
namespace FAV {
FACTORY_DEFINE(VideoDecoder)
VideoDecoderId VideoDecoderId_FFmpeg = mkid::id32base36_6<'F', 'F', 'm', 'p', 'e', 'g'>::value;
//VideoDecoderId VideoDecoderId_CUDA = mkid::id32base36_4<'C', 'U', 'D', 'A'>::value;
#ifdef RM_USE_HW_DECODER
VideoDecoderId VideoDecoderId_DXVA = mkid::id32base36_4<'D', 'X', 'V', 'A'>::value;
#endif
//VideoDecoderId VideoDecoderId_D3D11 = mkid::id32base36_5<'D','3','D','1','1'>::value;
//VideoDecoderId VideoDecoderId_VAAPI = mkid::id32base36_5<'V', 'A', 'A', 'P', 'I'>::value;
//VideoDecoderId VideoDecoderId_Cedarv = mkid::id32base36_6<'C', 'e', 'd', 'a', 'r', 'V'>::value;
//VideoDecoderId VideoDecoderId_VDA = mkid::id32base36_3<'V', 'D', 'A'>::value;
//VideoDecoderId VideoDecoderId_VideoToolbox = mkid::id32base36_5<'V', 'T', 'B', 'o', 'x'>::value;
//VideoDecoderId VideoDecoderId_MediaCodec = mkid::id32base36_4<'F','F','M','C'>::value;
//VideoDecoderId VideoDecoderId_MMAL = mkid::id32base36_6<'F','F','M', 'M','A', 'L'>::value;
//VideoDecoderId VideoDecoderId_QSV = mkid::id32base36_5<'F','F','Q','S', 'V'>::value;
//VideoDecoderId VideoDecoderId_CrystalHD = mkid::id32base36_5<'F','F','C','H', 'D'>::value;
static void VideoDecoder_RegisterAll()
{
static bool called = false;
if (called)
return;
called = true;
// factory.h does not check whether an id is registered
if (VideoDecoder::name(VideoDecoderId_FFmpeg)) //registered on load
return;
extern bool RegisterVideoDecoderFFmpeg_Man();
RegisterVideoDecoderFFmpeg_Man();
#if QTAV_HAVE(DXVA)
extern bool RegisterVideoDecoderDXVA_Man();
RegisterVideoDecoderDXVA_Man();
#endif //QTAV_HAVE(DXVA)
#if QTAV_HAVE(D3D11VA)
extern bool RegisterVideoDecoderD3D11_Man();
RegisterVideoDecoderD3D11_Man();
#endif //QTAV_HAVE(DXVA)
#if QTAV_HAVE(CUDA)
extern bool RegisterVideoDecoderCUDA_Man();
RegisterVideoDecoderCUDA_Man();
#endif //QTAV_HAVE(CUDA)
#if QTAV_HAVE(VAAPI)
extern bool RegisterVideoDecoderVAAPI_Man();
RegisterVideoDecoderVAAPI_Man();
#endif //QTAV_HAVE(VAAPI)
#if QTAV_HAVE(VIDEOTOOLBOX)
extern bool RegisterVideoDecoderVideoToolbox_Man();
RegisterVideoDecoderVideoToolbox_Man();
#endif //QTAV_HAVE(VIDEOTOOLBOX)
#if QTAV_HAVE(VDA)
extern bool RegisterVideoDecoderVDA_Man();
RegisterVideoDecoderVDA_Man();
#endif //QTAV_HAVE(VDA)
#if QTAV_HAVE(CEDARV)
extern bool RegisterVideoDecoderCedarv_Man();
RegisterVideoDecoderCedarv_Man();
#endif //QTAV_HAVE(CEDARV)
}
// TODO: called in ::create()/next() etc. to ensure registered?
QVector<VideoDecoderId> VideoDecoder::registered()
{
VideoDecoder_RegisterAll();
return QVector<VideoDecoderId>::fromStdVector(VideoDecoderFactory::Instance().registeredIds());
}
QStringList VideoDecoder::supportedCodecs()
{
static QStringList codecs;
if (!codecs.isEmpty())
return codecs;
avcodec_register_all();
AVCodec* c = NULL;
while ((c=av_codec_next(c))) {
if (!av_codec_is_decoder(c) || c->type != AVMEDIA_TYPE_VIDEO)
continue;
codecs.append(QString::fromLatin1(c->name));
}
return codecs;
}
VideoDecoder::VideoDecoder(VideoDecoderPrivate &d):
AVDecoder(d)
{
}
QString VideoDecoder::name() const
{
return QLatin1String(VideoDecoder::name(id()));
}
} //namespace FAV