404 lines
20 KiB
C++
404 lines
20 KiB
C++
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//
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// ZoneMinder SDP Class Implementation, $Date: 2009-04-14 21:20:02 +0100 (Tue, 14 Apr 2009) $, $Revision: 2850 $
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// Copyright (C) 2001-2008 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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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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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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#include "zm.h"
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#if HAVE_LIBAVFORMAT
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#include "zm_sdp.h"
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#if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT(51,2,1)
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SessionDescriptor::StaticPayloadDesc SessionDescriptor::smStaticPayloads[] = {
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{ 0, "PCMU", AVMEDIA_TYPE_AUDIO, CODEC_ID_PCM_MULAW, 8000, 1 },
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{ 3, "GSM", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 4, "G723", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 5, "DVI4", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 6, "DVI4", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 16000, 1 },
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{ 7, "LPC", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 8, "PCMA", AVMEDIA_TYPE_AUDIO, CODEC_ID_PCM_ALAW, 8000, 1 },
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{ 9, "G722", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 10, "L16", AVMEDIA_TYPE_AUDIO, CODEC_ID_PCM_S16BE, 44100, 2 },
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{ 11, "L16", AVMEDIA_TYPE_AUDIO, CODEC_ID_PCM_S16BE, 44100, 1 },
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{ 12, "QCELP", AVMEDIA_TYPE_AUDIO, CODEC_ID_QCELP, 8000, 1 },
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{ 13, "CN", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 14, "MPA", AVMEDIA_TYPE_AUDIO, CODEC_ID_MP2, -1, -1 },
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{ 14, "MPA", AVMEDIA_TYPE_AUDIO, CODEC_ID_MP3, -1, -1 },
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{ 15, "G728", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 16, "DVI4", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 11025, 1 },
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{ 17, "DVI4", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 22050, 1 },
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{ 18, "G729", AVMEDIA_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 25, "CelB", AVMEDIA_TYPE_VIDEO, CODEC_ID_NONE, 90000, -1 },
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{ 26, "JPEG", AVMEDIA_TYPE_VIDEO, CODEC_ID_MJPEG, 90000, -1 },
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{ 28, "nv", AVMEDIA_TYPE_VIDEO, CODEC_ID_NONE, 90000, -1 },
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{ 31, "H261", AVMEDIA_TYPE_VIDEO, CODEC_ID_H261, 90000, -1 },
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{ 32, "MPV", AVMEDIA_TYPE_VIDEO, CODEC_ID_MPEG1VIDEO, 90000, -1 },
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{ 32, "MPV", AVMEDIA_TYPE_VIDEO, CODEC_ID_MPEG2VIDEO, 90000, -1 },
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{ 33, "MP2T", AVMEDIA_TYPE_DATA, CODEC_ID_MPEG2TS, 90000, -1 },
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{ 34, "H263", AVMEDIA_TYPE_VIDEO, CODEC_ID_H263, 90000, -1 },
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{ -1, "", AVMEDIA_TYPE_UNKNOWN, CODEC_ID_NONE, -1, -1 }
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};
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SessionDescriptor::DynamicPayloadDesc SessionDescriptor::smDynamicPayloads[] = {
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{ "MP4V-ES", AVMEDIA_TYPE_VIDEO, CODEC_ID_MPEG4 },
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{ "mpeg4-generic", AVMEDIA_TYPE_AUDIO, CODEC_ID_AAC },
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{ "H264", AVMEDIA_TYPE_VIDEO, CODEC_ID_H264 },
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{ "AMR", AVMEDIA_TYPE_AUDIO, CODEC_ID_AMR_NB }
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};
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#else
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SessionDescriptor::StaticPayloadDesc SessionDescriptor::smStaticPayloads[] = {
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{ 0, "PCMU", CODEC_TYPE_AUDIO, CODEC_ID_PCM_MULAW, 8000, 1 },
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{ 3, "GSM", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 4, "G723", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 5, "DVI4", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 6, "DVI4", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 16000, 1 },
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{ 7, "LPC", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 8, "PCMA", CODEC_TYPE_AUDIO, CODEC_ID_PCM_ALAW, 8000, 1 },
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{ 9, "G722", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 10, "L16", CODEC_TYPE_AUDIO, CODEC_ID_PCM_S16BE, 44100, 2 },
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{ 11, "L16", CODEC_TYPE_AUDIO, CODEC_ID_PCM_S16BE, 44100, 1 },
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{ 12, "QCELP", CODEC_TYPE_AUDIO, CODEC_ID_QCELP, 8000, 1 },
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{ 13, "CN", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 14, "MPA", CODEC_TYPE_AUDIO, CODEC_ID_MP2, -1, -1 },
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{ 14, "MPA", CODEC_TYPE_AUDIO, CODEC_ID_MP3, -1, -1 },
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{ 15, "G728", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 16, "DVI4", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 11025, 1 },
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{ 17, "DVI4", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 22050, 1 },
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{ 18, "G729", CODEC_TYPE_AUDIO, CODEC_ID_NONE, 8000, 1 },
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{ 25, "CelB", CODEC_TYPE_VIDEO, CODEC_ID_NONE, 90000, -1 },
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{ 26, "JPEG", CODEC_TYPE_VIDEO, CODEC_ID_MJPEG, 90000, -1 },
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{ 28, "nv", CODEC_TYPE_VIDEO, CODEC_ID_NONE, 90000, -1 },
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{ 31, "H261", CODEC_TYPE_VIDEO, CODEC_ID_H261, 90000, -1 },
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{ 32, "MPV", CODEC_TYPE_VIDEO, CODEC_ID_MPEG1VIDEO, 90000, -1 },
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{ 32, "MPV", CODEC_TYPE_VIDEO, CODEC_ID_MPEG2VIDEO, 90000, -1 },
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{ 33, "MP2T", CODEC_TYPE_DATA, CODEC_ID_MPEG2TS, 90000, -1 },
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{ 34, "H263", CODEC_TYPE_VIDEO, CODEC_ID_H263, 90000, -1 },
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{ -1, "", CODEC_TYPE_UNKNOWN, CODEC_ID_NONE, -1, -1 }
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};
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SessionDescriptor::DynamicPayloadDesc SessionDescriptor::smDynamicPayloads[] = {
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{ "MP4V-ES", CODEC_TYPE_VIDEO, CODEC_ID_MPEG4 },
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{ "mpeg4-generic", CODEC_TYPE_AUDIO, CODEC_ID_AAC },
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{ "H264", CODEC_TYPE_VIDEO, CODEC_ID_H264 },
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{ "AMR", CODEC_TYPE_AUDIO, CODEC_ID_AMR_NB }
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};
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#endif
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SessionDescriptor::ConnInfo::ConnInfo( const std::string &connInfo ) :
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mTtl( 16 ),
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mNoAddresses( 0 )
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{
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StringVector tokens = split( connInfo, " " );
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if ( tokens.size() < 3 )
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throw Exception( "Unable to parse SDP connection info from '"+connInfo+"'" );
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mNetworkType = tokens[0];
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if ( mNetworkType != "IN" )
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throw Exception( "Invalid SDP network type '"+mNetworkType+"' in connection info '"+connInfo+"'" );
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mAddressType = tokens[1];
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if ( mAddressType != "IP4" )
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throw Exception( "Invalid SDP address type '"+mAddressType+"' in connection info '"+connInfo+"'" );
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StringVector addressTokens = split( tokens[2], "/" );
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if ( addressTokens.size() < 1 )
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throw Exception( "Invalid SDP address '"+tokens[2]+"' in connection info '"+connInfo+"'" );
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mAddress = addressTokens[0];
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if ( addressTokens.size() >= 2 )
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mTtl = atoi(addressTokens[1].c_str());
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if ( addressTokens.size() >= 3 )
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mNoAddresses = atoi(addressTokens[2].c_str());
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}
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SessionDescriptor::BandInfo::BandInfo( const std::string &bandInfo ) :
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mValue( 0 )
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{
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StringVector tokens = split( bandInfo, ":" );
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if ( tokens.size() < 2 )
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throw Exception( "Unable to parse SDP bandwidth info from '"+bandInfo+"'" );
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mType = tokens[0];
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//if ( mNetworkType != "IN" )
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//throw Exception( "Invalid SDP network type '"+mNetworkType+"' in connection info '"+connInfo+"'" );
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mValue = atoi(tokens[1].c_str());
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}
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SessionDescriptor::MediaDescriptor::MediaDescriptor( const std::string &type, int port, int numPorts, const std::string &transport, int payloadType ) :
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mType( type ),
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mPort( port ),
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mNumPorts( numPorts ),
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mTransport( transport ),
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mPayloadType( payloadType ),
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mFrameRate( 0.0 ),
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mClock( 0 ),
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mWidth( 0 ),
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mHeight( 0 ),
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mConnInfo( 0 )
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{
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}
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SessionDescriptor::SessionDescriptor( const std::string &url, const std::string &sdp ) :
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mUrl( url ),
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mConnInfo( 0 ),
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mBandInfo( 0 )
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{
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MediaDescriptor *currMedia = 0;
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StringVector lines = split( sdp, "\r\n" );
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for ( StringVector::const_iterator iter = lines.begin(); iter != lines.end(); iter++ )
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{
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std::string line = *iter;
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if ( line.empty() )
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break;
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Debug( 3, "Processing SDP line '%s'", line.c_str() );
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const char sdpType = line[0];
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if ( line[1] != '=' )
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throw Exception( "Invalid SDP format at '"+line+"'" );
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line.erase( 0, 2 );
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switch( sdpType )
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{
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case 'v' :
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mVersion = line;
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break;
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case 'o' :
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mOwner = line;
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break;
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case 's' :
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mName = line;
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break;
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case 'i' :
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mInfo = line;
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break;
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case 'c' :
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mConnInfo = new ConnInfo( line );
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break;
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case 'b' :
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mBandInfo = new BandInfo( line );
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break;
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case 't' :
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mTimeInfo = line;
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break;
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case 'a' :
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{
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mAttributes.push_back( line );
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StringVector tokens = split( line, ":", 2 );
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std::string attrName = tokens[0];
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if ( currMedia )
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{
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if ( attrName == "control" )
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{
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if ( tokens.size() < 2 )
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throw Exception( "Unable to parse SDP control attribute '"+line+"' for media '"+currMedia->getType()+"'" );
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currMedia->setControlUrl( tokens[1] );
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}
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else if ( attrName == "range" )
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{
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}
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else if ( attrName == "rtpmap" )
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{
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// a=rtpmap:96 MP4V-ES/90000
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if ( tokens.size() < 2 )
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throw Exception( "Unable to parse SDP rtpmap attribute '"+line+"' for media '"+currMedia->getType()+"'" );
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StringVector attrTokens = split( tokens[1], " " );
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int payloadType = atoi(attrTokens[0].c_str());
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if ( payloadType != currMedia->getPayloadType() )
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throw Exception( stringtf( "Payload type mismatch, expected %d, got %d in '%s'", currMedia->getPayloadType(), payloadType, line.c_str() ) );
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std::string payloadDesc = attrTokens[1];
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//currMedia->setPayloadType( payloadType );
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if ( attrTokens.size() > 1 )
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{
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StringVector payloadTokens = split( attrTokens[1], "/" );
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std::string payloadDesc = payloadTokens[0];
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int payloadClock = atoi(payloadTokens[1].c_str());
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currMedia->setPayloadDesc( payloadDesc );
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currMedia->setClock( payloadClock );
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}
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}
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else if ( attrName == "framesize" )
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{
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// a=framesize:96 320-240
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if ( tokens.size() < 2 )
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throw Exception( "Unable to parse SDP framesize attribute '"+line+"' for media '"+currMedia->getType()+"'" );
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StringVector attrTokens = split( tokens[1], " " );
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int payloadType = atoi(attrTokens[0].c_str());
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if ( payloadType != currMedia->getPayloadType() )
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throw Exception( stringtf( "Payload type mismatch, expected %d, got %d in '%s'", currMedia->getPayloadType(), payloadType, line.c_str() ) );
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//currMedia->setPayloadType( payloadType );
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StringVector sizeTokens = split( attrTokens[1], "-" );
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int width = atoi(sizeTokens[0].c_str());
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int height = atoi(sizeTokens[1].c_str());
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currMedia->setFrameSize( width, height );
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}
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else if ( attrName == "framerate" )
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{
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// a=framerate:5.0
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if ( tokens.size() < 2 )
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throw Exception( "Unable to parse SDP framerate attribute '"+line+"' for media '"+currMedia->getType()+"'" );
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double frameRate = atof(tokens[1].c_str());
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currMedia->setFrameRate( frameRate );
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}
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else if ( attrName == "fmtp" )
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{
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// a=fmtp:96 profile-level-id=247; config=000001B0F7000001B509000001000000012008D48D8803250F042D14440F
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if ( tokens.size() < 2 )
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throw Exception( "Unable to parse SDP fmtp attribute '"+line+"' for media '"+currMedia->getType()+"'" );
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StringVector attrTokens = split( tokens[1], " ", 2 );
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int payloadType = atoi(attrTokens[0].c_str());
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if ( payloadType != currMedia->getPayloadType() )
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throw Exception( stringtf( "Payload type mismatch, expected %d, got %d in '%s'", currMedia->getPayloadType(), payloadType, line.c_str() ) );
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//currMedia->setPayloadType( payloadType );
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if ( attrTokens.size() > 1 )
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{
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StringVector attr2Tokens = split( attrTokens[1], "; " );
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for ( unsigned int i = 0; i < attr2Tokens.size(); i++ )
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{
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StringVector attr3Tokens = split( attr2Tokens[i], "=" );
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//Info( "Name = %s, Value = %s", attr3Tokens[0].c_str(), attr3Tokens[1].c_str() );
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if ( attr3Tokens[0] == "profile-level-id" )
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{
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}
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else if ( attr3Tokens[0] == "config" )
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{
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}
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else
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{
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Debug( 3, "Ignoring SDP fmtp attribute '%s' for media '%s'", attr3Tokens[0].c_str(), currMedia->getType().c_str() )
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}
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}
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}
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}
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else if ( attrName == "mpeg4-iod" )
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{
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// a=mpeg4-iod: "data:application/mpeg4-iod;base64,AoEAAE8BAf73AQOAkwABQHRkYXRhOmFwcGxpY2F0aW9uL21wZWc0LW9kLWF1O2Jhc2U2NCxBVGdCR3dVZkF4Y0F5U1FBWlFRTklCRUVrK0FBQWEyd0FBR3RzQVlCQkFFWkFwOERGUUJsQlFRTlFCVUFDN2dBQVBvQUFBRDZBQVlCQXc9PQQNAQUABAAAAAAAAAAAAAYJAQAAAAAAAAAAA0IAAkA+ZGF0YTphcHBsaWNhdGlvbi9tcGVnNC1iaWZzLWF1O2Jhc2U2NCx3QkFTZ1RBcUJYSmhCSWhRUlFVL0FBPT0EEgINAAACAAAAAAAAAAAFAwAAQAYJAQAAAAAAAAAA"
|
||
|
|
}
|
||
|
|
else if ( attrName == "mpeg4-esid" )
|
||
|
|
{
|
||
|
|
// a=mpeg4-esid:201
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Debug( 3, "Ignoring SDP attribute '%s' for media '%s'", line.c_str(), currMedia->getType().c_str() )
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Debug( 3, "Ignoring general SDP attribute '%s'", line.c_str() );
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case 'm' :
|
||
|
|
{
|
||
|
|
StringVector tokens = split( line, " " );
|
||
|
|
if ( tokens.size() < 4 )
|
||
|
|
throw Exception( "Can't parse SDP media description '"+line+"'" );
|
||
|
|
std::string mediaType = tokens[0];
|
||
|
|
if ( mediaType != "audio" && mediaType != "video" )
|
||
|
|
throw Exception( "Unsupported media type '"+mediaType+"' in SDP media attribute '"+line+"'" );
|
||
|
|
StringVector portTokens = split( tokens[1], "/" );
|
||
|
|
int mediaPort = atoi(portTokens[0].c_str());
|
||
|
|
int mediaNumPorts = 1;
|
||
|
|
if ( portTokens.size() > 1 )
|
||
|
|
mediaNumPorts = atoi(portTokens[1].c_str());
|
||
|
|
std::string mediaTransport = tokens[2];
|
||
|
|
if ( mediaTransport != "RTP/AVP" )
|
||
|
|
throw Exception( "Unsupported media transport '"+mediaTransport+"' in SDP media attribute '"+line+"'" );
|
||
|
|
int payloadType = atoi(tokens[3].c_str());
|
||
|
|
currMedia = new MediaDescriptor( mediaType, mediaPort, mediaNumPorts, mediaTransport, payloadType );
|
||
|
|
mMediaList.push_back( currMedia );
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
AVFormatContext *SessionDescriptor::generateFormatContext() const
|
||
|
|
{
|
||
|
|
AVFormatContext *formatContext = avformat_alloc_context();
|
||
|
|
|
||
|
|
strncpy( formatContext->filename, mUrl.c_str(), sizeof(formatContext->filename) );
|
||
|
|
|
||
|
|
//formatContext->nb_streams = mMediaList.size();
|
||
|
|
for ( unsigned int i = 0; i < mMediaList.size(); i++ )
|
||
|
|
{
|
||
|
|
const MediaDescriptor *mediaDesc = mMediaList[i];
|
||
|
|
#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(53, 8, 0)
|
||
|
|
AVStream *stream = av_new_stream( formatContext, i );
|
||
|
|
#else
|
||
|
|
AVStream *stream = avformat_new_stream( formatContext, NULL );
|
||
|
|
stream->id = i;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
Debug( 1, "Looking for codec for %s payload type %d / %s", mediaDesc->getType().c_str(), mediaDesc->getPayloadType(), mediaDesc->getPayloadDesc().c_str() );
|
||
|
|
#if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT(51,2,1)
|
||
|
|
if ( mediaDesc->getType() == "video" )
|
||
|
|
stream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
|
||
|
|
else if ( mediaDesc->getType() == "audio" )
|
||
|
|
stream->codec->codec_type = AVMEDIA_TYPE_AUDIO;
|
||
|
|
#else
|
||
|
|
if ( mediaDesc->getType() == "video" )
|
||
|
|
stream->codec->codec_type = CODEC_TYPE_VIDEO;
|
||
|
|
else if ( mediaDesc->getType() == "audio" )
|
||
|
|
stream->codec->codec_type = CODEC_TYPE_AUDIO;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if ( mediaDesc->getPayloadType() < PAYLOAD_TYPE_DYNAMIC )
|
||
|
|
{
|
||
|
|
// Look in static table
|
||
|
|
for ( unsigned int i = 0; i < (sizeof(smStaticPayloads)/sizeof(*smStaticPayloads)); i++ )
|
||
|
|
{
|
||
|
|
if ( smStaticPayloads[i].payloadType == mediaDesc->getPayloadType() )
|
||
|
|
{
|
||
|
|
Debug( 1, "Got static payload type %d, %s", smStaticPayloads[i].payloadType, smStaticPayloads[i].payloadName );
|
||
|
|
strncpy( stream->codec->codec_name, smStaticPayloads[i].payloadName, sizeof(stream->codec->codec_name) );;
|
||
|
|
stream->codec->codec_type = smStaticPayloads[i].codecType;
|
||
|
|
stream->codec->codec_id = smStaticPayloads[i].codecId;
|
||
|
|
stream->codec->sample_rate = smStaticPayloads[i].clockRate;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Look in dynamic table
|
||
|
|
for ( unsigned int i = 0; i < (sizeof(smDynamicPayloads)/sizeof(*smDynamicPayloads)); i++ )
|
||
|
|
{
|
||
|
|
if ( smDynamicPayloads[i].payloadName == mediaDesc->getPayloadDesc() )
|
||
|
|
{
|
||
|
|
Debug( 1, "Got dynamic payload type %d, %s", mediaDesc->getPayloadType(), smDynamicPayloads[i].payloadName );
|
||
|
|
strncpy( stream->codec->codec_name, smDynamicPayloads[i].payloadName, sizeof(stream->codec->codec_name) );;
|
||
|
|
stream->codec->codec_type = smDynamicPayloads[i].codecType;
|
||
|
|
stream->codec->codec_id = smDynamicPayloads[i].codecId;
|
||
|
|
stream->codec->sample_rate = mediaDesc->getClock();
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ( !stream->codec->codec_name[0] )
|
||
|
|
{
|
||
|
|
Warning( "Can't find payload details for %s payload type %d, name %s", mediaDesc->getType().c_str(), mediaDesc->getPayloadType(), mediaDesc->getPayloadDesc().c_str() );
|
||
|
|
//return( 0 );
|
||
|
|
}
|
||
|
|
if ( mediaDesc->getWidth() )
|
||
|
|
stream->codec->width = mediaDesc->getWidth();
|
||
|
|
if ( mediaDesc->getHeight() )
|
||
|
|
stream->codec->height = mediaDesc->getHeight();
|
||
|
|
}
|
||
|
|
|
||
|
|
return( formatContext );
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // HAVE_LIBAVFORMAT
|