--- a/QTfrontend/util/libav_iteraction.cpp Tue Oct 30 02:22:54 2012 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,356 +0,0 @@
-/*
- * Hedgewars, a free turn based strategy game
- * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
- *
- * 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; version 2 of the License
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-#include "libav_iteraction.h"
-
-#if VIDEOREC
-extern "C"
-{
-#include "libavformat/avformat.h"
-}
-
-#include <QVector>
-#include <QList>
-#include <QComboBox>
-
-#include "HWApplication.h"
-
-struct Codec
-{
- CodecID id;
- bool isAudio;
- QString shortName; // used for identification
- QString longName; // used for displaying to user
- bool isRecomended;
-};
-
-struct Format
-{
- QString shortName;
- QString longName;
- bool isRecomended;
- QString extension;
- QVector<Codec*> codecs;
-};
-
-QList<Codec> codecs;
-QMap<QString,Format> formats;
-
-// test if given format supports given codec
-bool FormatQueryCodec(AVOutputFormat *ofmt, enum CodecID codec_id)
-{
-#if LIBAVFORMAT_VERSION_MAJOR >= 54
- return avformat_query_codec(ofmt, codec_id, FF_COMPLIANCE_NORMAL) == 1;
-#else
- if (ofmt->codec_tag)
- return !!av_codec_get_tag(ofmt->codec_tag, codec_id);
- return codec_id == ofmt->video_codec || codec_id == ofmt->audio_codec;
-#endif
-}
-
-LibavIteraction::LibavIteraction() : QObject()
-{
- // initialize libav and register all codecs and formats
- av_register_all();
-
- // get list of all codecs
- AVCodec* pCodec = NULL;
- while (pCodec = av_codec_next(pCodec))
- {
-#if LIBAVCODEC_VERSION_MAJOR >= 54
- if (!av_codec_is_encoder(pCodec))
-#else
- if (!pCodec->encode)
-#endif
- continue;
-
- if (pCodec->type != AVMEDIA_TYPE_VIDEO && pCodec->type != AVMEDIA_TYPE_AUDIO)
- continue;
-
- // this encoders seems to be buggy
- if (strcmp(pCodec->name, "rv10") == 0 || strcmp(pCodec->name, "rv20") == 0)
- continue;
-
- // doesn't support stereo sound
- if (strcmp(pCodec->name, "real_144") == 0)
- continue;
-
- if (!pCodec->long_name || strlen(pCodec->long_name) == 0)
- continue;
-
- if (pCodec->type == AVMEDIA_TYPE_VIDEO)
- {
- if (pCodec->supported_framerates != NULL)
- continue;
-
- // check if codec supports yuv 4:2:0 format
- if (!pCodec->pix_fmts)
- continue;
- bool yuv420Supported = false;
- for (const PixelFormat* pfmt = pCodec->pix_fmts; *pfmt != -1; pfmt++)
- if (*pfmt == PIX_FMT_YUV420P)
- {
- yuv420Supported = true;
- break;
- }
- if (!yuv420Supported)
- continue;
- }
- if (pCodec->type == AVMEDIA_TYPE_AUDIO)
- {
- // check if codec supports signed 16-bit format
- if (!pCodec->sample_fmts)
- continue;
- bool s16Supported = false;
- for (const AVSampleFormat* pfmt = pCodec->sample_fmts; *pfmt != -1; pfmt++)
- if (*pfmt == AV_SAMPLE_FMT_S16)
- {
- s16Supported = true;
- break;
- }
- if (!s16Supported)
- continue;
- }
- // add codec to list of codecs
- codecs.push_back(Codec());
- Codec & codec = codecs.back();
- codec.id = pCodec->id;
- codec.isAudio = pCodec->type == AVMEDIA_TYPE_AUDIO;
- codec.shortName = pCodec->name;
- codec.longName = pCodec->long_name;
-
- codec.isRecomended = false;
- if (strcmp(pCodec->name, "libx264") == 0)
- {
- codec.longName = "H.264/MPEG-4 Part 10 AVC (x264)";
- codec.isRecomended = true;
- }
- else if (strcmp(pCodec->name, "libxvid") == 0)
- {
- codec.longName = "MPEG-4 Part 2 (Xvid)";
- codec.isRecomended = true;
- }
- else if (strcmp(pCodec->name, "libmp3lame") == 0)
- {
- codec.longName = "MP3 (MPEG audio layer 3) (LAME)";
- codec.isRecomended = true;
- }
- else
- codec.longName = pCodec->long_name;
-
- if (strcmp(pCodec->name, "mpeg4") == 0 || strcmp(pCodec->name, "ac3_fixed") == 0)
- codec.isRecomended = true;
-
- // FIXME: remove next line
- //codec.longName += QString(" (%1)").arg(codec.shortName);
- }
-
- // get list of all formats
- AVOutputFormat* pFormat = NULL;
- while (pFormat = av_oformat_next(pFormat))
- {
- if (!pFormat->extensions)
- continue;
-
- // skip some strange formats to not confuse users
- if (strstr(pFormat->long_name, "raw"))
- continue;
-
- Format format;
- bool hasVideoCodec = false;
- for (QList<Codec>::iterator codec = codecs.begin(); codec != codecs.end(); ++codec)
- {
- if (!FormatQueryCodec(pFormat, codec->id))
- continue;
- format.codecs.push_back(&*codec);
- if (!codec->isAudio)
- hasVideoCodec = true;
- }
- if (!hasVideoCodec)
- continue;
-
- QString ext(pFormat->extensions);
- ext.truncate(strcspn(pFormat->extensions, ","));
- format.extension = ext;
- format.shortName = pFormat->name;
- format.longName = QString("%1 (*.%2)").arg(pFormat->long_name).arg(ext);
-
- // FIXME: remove next line
- //format.longName += QString(" (%1)").arg(format.shortName);
-
- format.isRecomended = strcmp(pFormat->name, "mp4") == 0 || strcmp(pFormat->name, "avi") == 0;
-
- formats[pFormat->name] = format;
- }
-}
-
-void LibavIteraction::fillFormats(QComboBox * pFormats)
-{
- // first insert recomended formats
- foreach(const Format & format, formats)
- if (format.isRecomended)
- pFormats->addItem(format.longName, format.shortName);
-
- // remember where to place separator between recomended and other formats
- int sep = pFormats->count();
-
- // insert remaining formats
- foreach(const Format & format, formats)
- if (!format.isRecomended)
- pFormats->addItem(format.longName, format.shortName);
-
- // insert separator if necessary
- if (sep != 0 && sep != pFormats->count())
- pFormats->insertSeparator(sep);
-}
-
-void LibavIteraction::fillCodecs(const QString & fmt, QComboBox * pVCodecs, QComboBox * pACodecs)
-{
- Format & format = formats[fmt];
-
- // first insert recomended codecs
- foreach(Codec * codec, format.codecs)
- {
- if (codec->isRecomended)
- {
- if (codec->isAudio)
- pACodecs->addItem(codec->longName, codec->shortName);
- else
- pVCodecs->addItem(codec->longName, codec->shortName);
- }
- }
-
- // remember where to place separators between recomended and other codecs
- int vsep = pVCodecs->count();
- int asep = pACodecs->count();
-
- // insert remaining codecs
- foreach(Codec * codec, format.codecs)
- {
- if (!codec->isRecomended)
- {
- if (codec->isAudio)
- pACodecs->addItem(codec->longName, codec->shortName);
- else
- pVCodecs->addItem(codec->longName, codec->shortName);
- }
- }
-
- // insert separators if necessary
- if (vsep != 0 && vsep != pVCodecs->count())
- pVCodecs->insertSeparator(vsep);
- if (asep != 0 && asep != pACodecs->count())
- pACodecs->insertSeparator(asep);
-}
-
-QString LibavIteraction::getExtension(const QString & format)
-{
- return formats[format].extension;
-}
-
-// get information abaout file (duration, resolution etc) in multiline string
-QString LibavIteraction::getFileInfo(const QString & filepath)
-{
- AVFormatContext* pContext = NULL;
- QByteArray utf8path = filepath.toUtf8();
- if (avformat_open_input(&pContext, utf8path.data(), NULL, NULL) < 0)
- return "";
-#if LIBAVFORMAT_VERSION_MAJOR < 54
- if (av_find_stream_info(pContext) < 0)
-#else
- if (avformat_find_stream_info(pContext, NULL) < 0)
-#endif
- return "";
-
- int s = float(pContext->duration)/AV_TIME_BASE;
- QString desc = QString(tr("Duration: %1m %2s\n")).arg(s/60).arg(s%60);
- for (int i = 0; i < (int)pContext->nb_streams; i++)
- {
- AVStream* pStream = pContext->streams[i];
- if (!pStream)
- continue;
- AVCodecContext* pCodec = pContext->streams[i]->codec;
- if (!pCodec)
- continue;
-
- if (pCodec->codec_type == AVMEDIA_TYPE_VIDEO)
- {
- desc += QString(tr("Video: %1x%2, ")).arg(pCodec->width).arg(pCodec->height);
- if (pStream->avg_frame_rate.den)
- {
- float fps = float(pStream->avg_frame_rate.num)/pStream->avg_frame_rate.den;
- desc += QString(tr("%1 fps, ")).arg(fps, 0, 'f', 2);
- }
- }
- else if (pCodec->codec_type == AVMEDIA_TYPE_AUDIO)
- desc += tr("Audio: ");
- else
- continue;
- AVCodec* pDecoder = avcodec_find_decoder(pCodec->codec_id);
- desc += pDecoder? pDecoder->name : "unknown";
- desc += "\n";
- }
- AVDictionaryEntry* pComment = av_dict_get(pContext->metadata, "comment", NULL, 0);
- if (pComment)
- desc += QString("\n") + pComment->value;
-#if LIBAVFORMAT_VERSION_MAJOR < 54
- av_close_input_file(pContext);
-#else
- avformat_close_input(&pContext);
-#endif
- return desc;
-}
-
-#else
-LibavIteraction::LibavIteraction() : QObject()
-{
-
-}
-
-void LibavIteraction::fillFormats(QComboBox * pFormats)
-{
- Q_UNUSED(pFormats);
-}
-
-void LibavIteraction::fillCodecs(const QString & format, QComboBox * pVCodecs, QComboBox * pACodecs)
-{
- Q_UNUSED(format);
- Q_UNUSED(pVCodecs);
- Q_UNUSED(pACodecs);
-}
-
-QString LibavIteraction::getExtension(const QString & format)
-{
- Q_UNUSED(format);
-
- return QString();
-}
-
-QString LibavIteraction::getFileInfo(const QString & filepath)
-{
- Q_UNUSED(filepath);
-
- return QString();
-}
-#endif
-
-LibavIteraction & LibavIteraction::instance()
-{
- static LibavIteraction instance;
- return instance;
-}