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Diffstat (limited to 'kfile-plugins/theora/kfile_theora.cpp')
-rw-r--r--kfile-plugins/theora/kfile_theora.cpp322
1 files changed, 0 insertions, 322 deletions
diff --git a/kfile-plugins/theora/kfile_theora.cpp b/kfile-plugins/theora/kfile_theora.cpp
deleted file mode 100644
index aac38978..00000000
--- a/kfile-plugins/theora/kfile_theora.cpp
+++ /dev/null
@@ -1,322 +0,0 @@
-/***************************************************************************
- * Copyright (C) 2004 by Jean-Baptiste Mardelle *
- * bj@altern.org *
- * *
- * 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 <tqfile.h>
-#include <config.h>
-#include "kfile_theora.h"
-
-#include <kdebug.h>
-#include <klocale.h>
-#include <kgenericfactory.h>
-
-#include "theora/theora.h"
-#include "vorbis/codec.h"
-
-ogg_stream_state t_stream_state;
-ogg_stream_state v_stream_state;
-
-int theora_p=0;
-int vorbis_p=0;
-
-static int queue_page(ogg_page *page)
-{
- if(theora_p)
- ogg_stream_pagein(&t_stream_state,page);
- if(vorbis_p)
- ogg_stream_pagein(&v_stream_state,page);
- return 0;
-}
-
-static int buffer_data(FILE *in,ogg_sync_state *oy)
-{
- char *buffer=ogg_sync_buffer(oy,4096);
- int bytes=fread(buffer,1,4096,in);
- ogg_sync_wrote(oy,bytes);
- return(bytes);
-}
-
-typedef KGenericFactory<theoraPlugin> theoraFactory;
-
-K_EXPORT_COMPONENT_FACTORY(kfile_theora, theoraFactory( "kfile_theora" ))
-
-theoraPlugin::theoraPlugin(TQObject *parent, const char *name,
- const TQStringList &args)
- : KFilePlugin(parent, name, args)
-{
-// kdDebug(7034) << "theora plugin\n";
-
- KFileMimeTypeInfo* info = addMimeTypeInfo( "video/x-theora" );
-
- KFileMimeTypeInfo::GroupInfo* group = 0;
- KFileMimeTypeInfo::ItemInfo* item;
-
- // video group
-
- group = addGroupInfo(info, "Video", i18n("Video Details"));
- setAttributes(group, 0);
- item = addItemInfo(group, "Length", i18n("Length"), TQVariant::Int);
- setUnit(item, KFileMimeTypeInfo::Seconds);
- setHint(item, KFileMimeTypeInfo::Length);
- item = addItemInfo(group, "Resolution", i18n("Resolution"), TQVariant::Size);
- setHint(item, KFileMimeTypeInfo::Size);
- setUnit(item, KFileMimeTypeInfo::Pixels);
- item = addItemInfo(group, "FrameRate", i18n("Frame Rate"), TQVariant::Int);
- setUnit(item, KFileMimeTypeInfo::FramesPerSecond);
- item = addItemInfo(group, "TargetBitrate", i18n("Target Bitrate"), TQVariant::Int);
- setUnit(item, KFileMimeTypeInfo::Bitrate);
- item = addItemInfo(group, "Quality", i18n("Quality"), TQVariant::Int);
-
- // audio group
-
- group = addGroupInfo(info, "Audio", i18n("Audio Details"));
- setAttributes(group, 0);
- addItemInfo(group, "Channels", i18n("Channels"), TQVariant::Int);
-
- item = addItemInfo(group, "SampleRate", i18n("Sample Rate"), TQVariant::Int);
- setUnit(item, KFileMimeTypeInfo::Hertz);
-}
-
-bool theoraPlugin::readInfo( KFileMetaInfo& info, uint what)
-{
- // most of the ogg stuff was borrowed from libtheora/examples/player_example.c
- FILE *fp;
-
- ogg_sync_state o_sync_state;
- ogg_packet o_packet;
- ogg_page o_page;
-
- theora_info t_info;
- theora_comment t_comment;
- theora_state t_state;
- vorbis_info v_info;
- vorbis_comment v_comment;
-
- theora_p=0;
- vorbis_p=0;
- int theora_serial=0;
- int stateflag=0;
-
- ogg_int64_t duration=0;
-
- // libtheora is still a bit unstable and sadly the init_ functions don't
- // take care of things the way one would expect. So, let's do some explicit
- // clearing of these fields.
-
- memset(&t_info, 0, sizeof(theora_info));
- memset(&t_comment, 0, sizeof(theora_comment));
- memset(&t_state, 0, sizeof(theora_state));
-
- bool readTech = false;
-
- if (what & (KFileMetaInfo::Fastest |
- KFileMetaInfo::DontCare |
- KFileMetaInfo::TechnicalInfo))
- readTech = true;
-
- if ( info.path().isEmpty() ) // remote file
- return false;
-
- fp = fopen(TQFile::encodeName(info.path()),"rb");
- if (!fp)
- {
- kdDebug(7034) << "Unable to open " << TQFile::encodeName(info.path()).data() << endl;
- return false;
- }
-
- ogg_sync_init(&o_sync_state);
-
- /* init supporting Vorbis structures needed in header parsing */
- vorbis_info_init(&v_info);
- vorbis_comment_init(&v_comment);
-
- /* init supporting Theora structures needed in header parsing */
- theora_comment_init(&t_comment);
- theora_info_init(&t_info);
-
- while(!stateflag && buffer_data(fp,&o_sync_state)!=0)
- {
- while (ogg_sync_pageout(&o_sync_state,&o_page)>0)
- {
- ogg_stream_state stream_test;
- /* is this a mandated initial header? If not, stop parsing */
- if(!ogg_page_bos(&o_page))
- {
- queue_page(&o_page);
- stateflag=1;
- break;
- }
-
- ogg_stream_init(&stream_test,ogg_page_serialno(&o_page));
- ogg_stream_pagein(&stream_test,&o_page);
- ogg_stream_packetout(&stream_test,&o_packet);
-
- /* identify the codec: try theora */
- if(!theora_p && theora_decode_header(&t_info,&t_comment,&o_packet)>=0)
- {
- /* it is theora */
- memcpy(&t_stream_state,&stream_test,sizeof(stream_test));
- theora_serial=ogg_page_serialno(&o_page);
- theora_p=1;
- }
- else if(!vorbis_p && vorbis_synthesis_headerin(&v_info,&v_comment,&o_packet)>=0)
- {
- /* it is vorbis */
- memcpy(&v_stream_state,&stream_test,sizeof(stream_test));
- vorbis_p=1;
- }
- else
- {
- /* whatever it is, we don't care about it */
- ogg_stream_clear(&stream_test);
- }
- }
- }
-
- /* we're expecting more header packets. */
- bool corruptedHeaders=false;
-
- while((theora_p && theora_p<3) || (vorbis_p && vorbis_p<3))
- {
- int ret;
- /* look for further theora headers */
- while(theora_p && (theora_p<3) && (ret=ogg_stream_packetout(&t_stream_state,&o_packet)))
- {
- if(ret<0)
- {
- kdDebug(7034)<<"Error parsing Theora stream headers; corrupt stream?\n"<<endl;
- corruptedHeaders=true;
- }
- if(theora_decode_header(&t_info,&t_comment,&o_packet))
- {
- kdDebug(7034)<<"Error parsing Theora stream headers; corrupt stream?"<<endl;
- corruptedHeaders=true;
- }
- theora_p++;
- if(theora_p==3)
- break;
- }
-
- /* look for more vorbis header packets */
- while(vorbis_p && (vorbis_p<3) && (ret=ogg_stream_packetout(&v_stream_state,&o_packet)))
- {
- if(ret<0)
- {
- kdDebug(7034)<<"Error parsing Vorbis stream headers; corrupt stream"<<endl;
- corruptedHeaders=true;
- }
- if(vorbis_synthesis_headerin(&v_info,&v_comment,&o_packet))
- {
- kdDebug(7034)<<"Error parsing Vorbis stream headers; corrupt stream?"<<endl;
- corruptedHeaders=true;
- }
- vorbis_p++;
- if(vorbis_p==3)
- break;
- }
- /* The header pages/packets will arrive before anything else we
- care about, or the stream is not obeying spec */
-
- if(ogg_sync_pageout(&o_sync_state,&o_page)>0)
- {
- queue_page(&o_page);
- /* demux into the appropriate stream */
- }
- else
- {
- int ret=buffer_data(fp,&o_sync_state); /* someone needs more data */
- if(ret==0)
- {
- kdDebug(7034)<<"End of file while searching for codec headers."<<endl;
- corruptedHeaders=true;
- }
- }
- }
-
- /* and now we have it all. initialize decoders */
- if(theora_p && !corruptedHeaders)
- {
- theora_decode_init(&t_state,&t_info);
- }
- else
- {
- /* tear down the partial theora setup */
- theora_info_clear(&t_info);
- theora_comment_clear(&t_comment);
-
- vorbis_info_clear(&v_info);
- vorbis_comment_clear(&v_comment);
- ogg_sync_clear(&o_sync_state);
- fclose(fp);
- return false;
- }
- //queue_page(&o_page);
-
- while (buffer_data(fp,&o_sync_state))
- {
- while (ogg_sync_pageout(&o_sync_state,&o_page)>0)
- {
- // The following line was commented out by Scott Wheeler <wheeler@kde.org>
- // We don't actually need to store all of the pages / packets in memory since
- // (a) libtheora doesn't use them anyway in the one call that we make after this
- // that usese t_state and (b) it basically buffers the entire file to memory if
- // we queue them up like this and that sucks where a typical file size is a few
- // hundred megs.
-
- // queue_page(&o_page);
- }
- if (theora_serial==ogg_page_serialno(&o_page))
- duration=(ogg_int64_t) theora_granule_time(&t_state,ogg_page_granulepos(&o_page));
- }
-
- if (readTech)
- {
- int stream_fps=0;
- if (t_info.fps_denominator!=0)
- stream_fps=t_info.fps_numerator/t_info.fps_denominator;
- KFileMetaInfoGroup videogroup = appendGroup(info, "Video");
- appendItem(videogroup, "Length", int (duration));
- appendItem(videogroup, "Resolution", TQSize(t_info.frame_width,t_info.frame_height));
- appendItem(videogroup, "FrameRate", stream_fps);
- appendItem(videogroup, "Quality", (int) t_info.quality);
-
- KFileMetaInfoGroup audiogroup = appendGroup(info, "Audio");
- appendItem(audiogroup, "Channels", v_info.channels);
- appendItem(audiogroup, "SampleRate", int(v_info.rate));
- }
- fclose(fp);
-
- if (vorbis_p)
- {
- ogg_stream_clear(&v_stream_state);
- vorbis_comment_clear(&v_comment);
- vorbis_info_clear(&v_info);
- }
-
- ogg_stream_clear(&t_stream_state);
- theora_clear(&t_state);
- theora_comment_clear(&t_comment);
- theora_info_clear(&t_info);
- ogg_sync_clear(&o_sync_state);
-
- return true;
-}
-
-#include "kfile_theora.moc"
-
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