author | sheepluva |
Tue, 04 Feb 2014 19:45:22 +0100 (2014-02-04) | |
changeset 10108 | c68cf030eded |
parent 9998 | 736015b847e3 |
child 11046 | 47a8c19ecb60 |
permissions | -rw-r--r-- |
7897 | 1 |
/* |
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* Hedgewars, a free turn based strategy game |
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* Copyright (c) 2004-2014 Andrey Korotaev <unC0Rr@gmail.com> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; version 2 of the License |
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* |
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* This program 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 |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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10108
c68cf030eded
update FSF address. note: two sdl include files (by Sam Lantinga) still have the old FSF address in their copyright - but I ain't gonna touch their copyright headers
sheepluva
parents:
9998
diff
changeset
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "LibavInteraction.h" |
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#if VIDEOREC |
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extern "C" |
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{ |
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#include "libavformat/avformat.h" |
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} |
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#include <QVector> |
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#include <QList> |
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#include <QComboBox> |
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#include "HWApplication.h" |
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7a97a554ac80
libavinteraction: fix typo and and compiling with modern libav
koda
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#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(54, 25, 0) |
7a97a554ac80
libavinteraction: fix typo and and compiling with modern libav
koda
parents:
9107
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changeset
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#define CodecID AVCodecID |
7a97a554ac80
libavinteraction: fix typo and and compiling with modern libav
koda
parents:
9107
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changeset
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#endif |
7a97a554ac80
libavinteraction: fix typo and and compiling with modern libav
koda
parents:
9107
diff
changeset
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struct Codec |
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{ |
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CodecID id; |
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bool isAudio; |
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QString shortName; // used for identification |
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QString longName; // used for displaying to user |
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bool isRecomended; |
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}; |
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struct Format |
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{ |
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QString shortName; |
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QString longName; |
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bool isRecomended; |
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QString extension; |
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QVector<Codec*> codecs; |
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}; |
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QList<Codec> codecs; |
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QMap<QString,Format> formats; |
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// test if given format supports given codec |
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bool FormatQueryCodec(AVOutputFormat *ofmt, enum CodecID codec_id) |
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{ |
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#if LIBAVFORMAT_VERSION_MAJOR >= 54 |
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return avformat_query_codec(ofmt, codec_id, FF_COMPLIANCE_NORMAL) == 1; |
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#else |
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if (ofmt->codec_tag) |
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return !!av_codec_get_tag(ofmt->codec_tag, codec_id); |
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return codec_id == ofmt->video_codec || codec_id == ofmt->audio_codec; |
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#endif |
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} |
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LibavInteraction::LibavInteraction() : QObject() |
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{ |
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// initialize libav and register all codecs and formats |
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av_register_all(); |
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// get list of all codecs |
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AVCodec* pCodec = NULL; |
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while ((pCodec = av_codec_next(pCodec))) |
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{ |
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#if LIBAVCODEC_VERSION_MAJOR >= 54 |
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if (!av_codec_is_encoder(pCodec)) |
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#else |
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if (!pCodec->encode) |
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#endif |
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continue; |
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if (pCodec->type != AVMEDIA_TYPE_VIDEO && pCodec->type != AVMEDIA_TYPE_AUDIO) |
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continue; |
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// this encoders seems to be buggy |
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if (strcmp(pCodec->name, "rv10") == 0 || strcmp(pCodec->name, "rv20") == 0) |
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continue; |
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// doesn't support stereo sound |
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if (strcmp(pCodec->name, "real_144") == 0) |
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continue; |
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if (!pCodec->long_name || strlen(pCodec->long_name) == 0) |
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continue; |
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if (pCodec->type == AVMEDIA_TYPE_VIDEO) |
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{ |
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if (pCodec->supported_framerates != NULL) |
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continue; |
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// check if codec supports yuv 4:2:0 format |
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if (!pCodec->pix_fmts) |
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continue; |
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bool yuv420Supported = false; |
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for (const PixelFormat* pfmt = pCodec->pix_fmts; *pfmt != -1; pfmt++) |
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if (*pfmt == PIX_FMT_YUV420P) |
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{ |
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yuv420Supported = true; |
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break; |
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} |
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if (!yuv420Supported) |
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continue; |
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} |
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if (pCodec->type == AVMEDIA_TYPE_AUDIO) |
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{ |
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// check if codec supports signed 16-bit format |
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if (!pCodec->sample_fmts) |
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continue; |
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bool s16Supported = false; |
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for (const AVSampleFormat* pfmt = pCodec->sample_fmts; *pfmt != -1; pfmt++) |
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if (*pfmt == AV_SAMPLE_FMT_S16) |
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{ |
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s16Supported = true; |
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break; |
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} |
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if (!s16Supported) |
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continue; |
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} |
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// add codec to list of codecs |
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codecs.push_back(Codec()); |
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Codec & codec = codecs.back(); |
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codec.id = pCodec->id; |
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codec.isAudio = pCodec->type == AVMEDIA_TYPE_AUDIO; |
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codec.shortName = pCodec->name; |
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codec.longName = pCodec->long_name; |
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codec.isRecomended = false; |
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if (strcmp(pCodec->name, "libx264") == 0) |
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{ |
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codec.longName = "H.264/MPEG-4 Part 10 AVC (x264)"; |
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codec.isRecomended = true; |
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} |
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else if (strcmp(pCodec->name, "libxvid") == 0) |
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{ |
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codec.longName = "MPEG-4 Part 2 (Xvid)"; |
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codec.isRecomended = true; |
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} |
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else if (strcmp(pCodec->name, "libmp3lame") == 0) |
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{ |
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codec.longName = "MP3 (MPEG audio layer 3) (LAME)"; |
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codec.isRecomended = true; |
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} |
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else |
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codec.longName = pCodec->long_name; |
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if (strcmp(pCodec->name, "mpeg4") == 0 || strcmp(pCodec->name, "ac3_fixed") == 0) |
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codec.isRecomended = true; |
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// FIXME: remove next line |
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//codec.longName += QString(" (%1)").arg(codec.shortName); |
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} |
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// get list of all formats |
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AVOutputFormat* pFormat = NULL; |
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while ((pFormat = av_oformat_next(pFormat))) |
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{ |
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if (!pFormat->extensions) |
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continue; |
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// skip some strange formats to not confuse users |
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if (strstr(pFormat->long_name, "raw")) |
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continue; |
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Format format; |
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bool hasVideoCodec = false; |
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for (QList<Codec>::iterator codec = codecs.begin(); codec != codecs.end(); ++codec) |
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{ |
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if (!FormatQueryCodec(pFormat, codec->id)) |
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continue; |
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format.codecs.push_back(&*codec); |
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if (!codec->isAudio) |
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hasVideoCodec = true; |
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} |
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if (!hasVideoCodec) |
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continue; |
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QString ext(pFormat->extensions); |
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ext.truncate(strcspn(pFormat->extensions, ",")); |
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format.extension = ext; |
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format.shortName = pFormat->name; |
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format.longName = QString("%1 (*.%2)").arg(pFormat->long_name).arg(ext); |
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// FIXME: remove next line |
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//format.longName += QString(" (%1)").arg(format.shortName); |
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format.isRecomended = strcmp(pFormat->name, "mp4") == 0 || strcmp(pFormat->name, "avi") == 0; |
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formats[pFormat->name] = format; |
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} |
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} |
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void LibavInteraction::fillFormats(QComboBox * pFormats) |
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{ |
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// first insert recomended formats |
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foreach(const Format & format, formats) |
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if (format.isRecomended) |
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pFormats->addItem(format.longName, format.shortName); |
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// remember where to place separator between recomended and other formats |
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int sep = pFormats->count(); |
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// insert remaining formats |
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foreach(const Format & format, formats) |
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if (!format.isRecomended) |
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pFormats->addItem(format.longName, format.shortName); |
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// insert separator if necessary |
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if (sep != 0 && sep != pFormats->count()) |
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pFormats->insertSeparator(sep); |
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} |
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void LibavInteraction::fillCodecs(const QString & fmt, QComboBox * pVCodecs, QComboBox * pACodecs) |
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{ |
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Format & format = formats[fmt]; |
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// first insert recomended codecs |
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foreach(Codec * codec, format.codecs) |
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{ |
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if (codec->isRecomended) |
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{ |
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if (codec->isAudio) |
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pACodecs->addItem(codec->longName, codec->shortName); |
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else |
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pVCodecs->addItem(codec->longName, codec->shortName); |
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} |
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} |
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// remember where to place separators between recomended and other codecs |
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int vsep = pVCodecs->count(); |
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int asep = pACodecs->count(); |
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// insert remaining codecs |
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foreach(Codec * codec, format.codecs) |
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{ |
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if (!codec->isRecomended) |
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{ |
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if (codec->isAudio) |
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pACodecs->addItem(codec->longName, codec->shortName); |
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else |
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pVCodecs->addItem(codec->longName, codec->shortName); |
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} |
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} |
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// insert separators if necessary |
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if (vsep != 0 && vsep != pVCodecs->count()) |
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pVCodecs->insertSeparator(vsep); |
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if (asep != 0 && asep != pACodecs->count()) |
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pACodecs->insertSeparator(asep); |
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} |
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QString LibavInteraction::getExtension(const QString & format) |
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{ |
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return formats[format].extension; |
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} |
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// get information abaout file (duration, resolution etc) in multiline string |
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QString LibavInteraction::getFileInfo(const QString & filepath) |
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{ |
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AVFormatContext* pContext = NULL; |
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QByteArray utf8path = filepath.toUtf8(); |
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if (avformat_open_input(&pContext, utf8path.data(), NULL, NULL) < 0) |
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return ""; |
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#if LIBAVFORMAT_VERSION_MAJOR < 53 |
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if (av_find_stream_info(pContext) < 0) |
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#else |
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if (avformat_find_stream_info(pContext, NULL) < 0) |
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#endif |
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return ""; |
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int s = float(pContext->duration)/AV_TIME_BASE; |
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QString desc = tr("Duration: %1m %2s").arg(s/60).arg(s%60) + "\n"; |
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for (int i = 0; i < (int)pContext->nb_streams; i++) |
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{ |
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AVStream* pStream = pContext->streams[i]; |
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if (!pStream) |
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continue; |
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AVCodecContext* pCodec = pContext->streams[i]->codec; |
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if (!pCodec) |
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continue; |
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if (pCodec->codec_type == AVMEDIA_TYPE_VIDEO) |
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{ |
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desc += QString(tr("Video: %1x%2")).arg(pCodec->width).arg(pCodec->height) + ", "; |
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if (pStream->avg_frame_rate.den) |
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{ |
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float fps = float(pStream->avg_frame_rate.num)/pStream->avg_frame_rate.den; |
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desc += QString(tr("%1 fps")).arg(fps, 0, 'f', 2) + ", "; |
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} |
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} |
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else if (pCodec->codec_type == AVMEDIA_TYPE_AUDIO) |
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desc += tr("Audio: "); |
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else |
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continue; |
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AVCodec* pDecoder = avcodec_find_decoder(pCodec->codec_id); |
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desc += pDecoder? pDecoder->name : tr("unknown"); |
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desc += "\n"; |
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} |
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AVDictionaryEntry* pComment = av_dict_get(pContext->metadata, "comment", NULL, 0); |
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if (pComment) |
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desc += QString("\n") + pComment->value; |
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#if LIBAVFORMAT_VERSION_MAJOR < 53 |
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av_close_input_file(pContext); |
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#else |
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avformat_close_input(&pContext); |
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#endif |
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return desc; |
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} |
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#else |
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LibavInteraction::LibavInteraction() : QObject() |
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{ |
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} |
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void LibavInteraction::fillFormats(QComboBox * pFormats) |
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{ |
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Q_UNUSED(pFormats); |
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} |
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void LibavInteraction::fillCodecs(const QString & format, QComboBox * pVCodecs, QComboBox * pACodecs) |
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{ |
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Q_UNUSED(format); |
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Q_UNUSED(pVCodecs); |
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Q_UNUSED(pACodecs); |
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} |
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QString LibavInteraction::getExtension(const QString & format) |
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{ |
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Q_UNUSED(format); |
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344 |
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return QString(); |
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} |
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QString LibavInteraction::getFileInfo(const QString & filepath) |
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{ |
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Q_UNUSED(filepath); |
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return QString(); |
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} |
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#endif |
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LibavInteraction & LibavInteraction::instance() |
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{ |
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static LibavInteraction instance; |
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return instance; |
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} |