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676 lines
18 KiB
C
676 lines
18 KiB
C
/*
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===========================================================================
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Copyright (C) 2005-2006 Tim Angus
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, 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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You should have received a copy of the GNU General Public License
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along with Quake III Arena source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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#include "client.h"
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#include "snd_local.h"
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#define INDEX_FILE_EXTENSION ".index.dat"
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#define MAX_RIFF_CHUNKS 16
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typedef struct audioFormat_s
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{
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int rate;
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int format;
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int channels;
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int bits;
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int sampleSize;
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int totalBytes;
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} audioFormat_t;
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typedef struct aviFileData_s
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{
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qboolean fileOpen;
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fileHandle_t f;
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char fileName[ MAX_QPATH ];
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int fileSize;
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int moviOffset;
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int moviSize;
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fileHandle_t idxF;
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int numIndices;
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int frameRate;
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int framePeriod;
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int width, height;
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int numVideoFrames;
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int maxRecordSize;
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qboolean motionJpeg;
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qboolean audio;
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audioFormat_t a;
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int numAudioFrames;
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int chunkStack[ MAX_RIFF_CHUNKS ];
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int chunkStackTop;
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byte *cBuffer, *eBuffer;
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} aviFileData_t;
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static aviFileData_t afd;
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#define MAX_AVI_BUFFER 2048
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static byte buffer[ MAX_AVI_BUFFER ];
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static int bufIndex;
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/*
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===============
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SafeFS_Write
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===============
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*/
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static ID_INLINE void SafeFS_Write( const void *buffer, int len, fileHandle_t f )
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{
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if( FS_Write( buffer, len, f ) < len )
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Com_Error( ERR_DROP, "Failed to write avi file" );
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}
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/*
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===============
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WRITE_STRING
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===============
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*/
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static ID_INLINE void WRITE_STRING( const char *s )
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{
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Com_Memcpy( &buffer[ bufIndex ], s, strlen( s ) );
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bufIndex += strlen( s );
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}
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/*
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===============
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WRITE_4BYTES
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===============
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*/
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static ID_INLINE void WRITE_4BYTES( int x )
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{
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buffer[ bufIndex + 0 ] = (byte)( ( x >> 0 ) & 0xFF );
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buffer[ bufIndex + 1 ] = (byte)( ( x >> 8 ) & 0xFF );
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buffer[ bufIndex + 2 ] = (byte)( ( x >> 16 ) & 0xFF );
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buffer[ bufIndex + 3 ] = (byte)( ( x >> 24 ) & 0xFF );
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bufIndex += 4;
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}
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/*
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===============
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WRITE_2BYTES
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===============
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*/
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static ID_INLINE void WRITE_2BYTES( int x )
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{
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buffer[ bufIndex + 0 ] = (byte)( ( x >> 0 ) & 0xFF );
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buffer[ bufIndex + 1 ] = (byte)( ( x >> 8 ) & 0xFF );
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bufIndex += 2;
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}
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/*
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===============
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WRITE_1BYTES
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===============
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*/
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static ID_INLINE void WRITE_1BYTES( int x )
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{
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buffer[ bufIndex ] = x;
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bufIndex += 1;
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}
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/*
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===============
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START_CHUNK
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===============
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*/
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static ID_INLINE void START_CHUNK( const char *s )
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{
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if( afd.chunkStackTop == MAX_RIFF_CHUNKS )
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{
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Com_Error( ERR_DROP, "ERROR: Top of chunkstack breached" );
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}
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afd.chunkStack[ afd.chunkStackTop ] = bufIndex;
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afd.chunkStackTop++;
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WRITE_STRING( s );
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WRITE_4BYTES( 0 );
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}
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/*
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===============
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END_CHUNK
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===============
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*/
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static ID_INLINE void END_CHUNK( void )
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{
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int endIndex = bufIndex;
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if( afd.chunkStackTop <= 0 )
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{
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Com_Error( ERR_DROP, "ERROR: Bottom of chunkstack breached" );
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}
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afd.chunkStackTop--;
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bufIndex = afd.chunkStack[ afd.chunkStackTop ];
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bufIndex += 4;
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WRITE_4BYTES( endIndex - bufIndex - 4 );
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bufIndex = endIndex;
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bufIndex = PAD( bufIndex, 2 );
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}
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/*
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===============
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CL_WriteAVIHeader
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===============
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*/
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void CL_WriteAVIHeader( void )
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{
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bufIndex = 0;
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afd.chunkStackTop = 0;
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START_CHUNK( "RIFF" );
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{
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WRITE_STRING( "AVI " );
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{
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START_CHUNK( "LIST" );
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{
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WRITE_STRING( "hdrl" );
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WRITE_STRING( "avih" );
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WRITE_4BYTES( 56 ); //"avih" "chunk" size
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WRITE_4BYTES( afd.framePeriod ); //dwMicroSecPerFrame
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WRITE_4BYTES( afd.maxRecordSize *
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afd.frameRate ); //dwMaxBytesPerSec
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WRITE_4BYTES( 0 ); //dwReserved1
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WRITE_4BYTES( 0x110 ); //dwFlags bits HAS_INDEX and IS_INTERLEAVED
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WRITE_4BYTES( afd.numVideoFrames ); //dwTotalFrames
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WRITE_4BYTES( 0 ); //dwInitialFrame
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if( afd.audio ) //dwStreams
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WRITE_4BYTES( 2 );
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else
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WRITE_4BYTES( 1 );
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WRITE_4BYTES( afd.maxRecordSize ); //dwSuggestedBufferSize
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WRITE_4BYTES( afd.width ); //dwWidth
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WRITE_4BYTES( afd.height ); //dwHeight
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WRITE_4BYTES( 0 ); //dwReserved[ 0 ]
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WRITE_4BYTES( 0 ); //dwReserved[ 1 ]
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WRITE_4BYTES( 0 ); //dwReserved[ 2 ]
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WRITE_4BYTES( 0 ); //dwReserved[ 3 ]
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START_CHUNK( "LIST" );
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{
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WRITE_STRING( "strl" );
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WRITE_STRING( "strh" );
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WRITE_4BYTES( 56 ); //"strh" "chunk" size
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WRITE_STRING( "vids" );
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if( afd.motionJpeg )
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WRITE_STRING( "MJPG" );
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else
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WRITE_4BYTES( 0 ); // BI_RGB
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WRITE_4BYTES( 0 ); //dwFlags
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WRITE_4BYTES( 0 ); //dwPriority
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WRITE_4BYTES( 0 ); //dwInitialFrame
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WRITE_4BYTES( 1 ); //dwTimescale
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WRITE_4BYTES( afd.frameRate ); //dwDataRate
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WRITE_4BYTES( 0 ); //dwStartTime
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WRITE_4BYTES( afd.numVideoFrames ); //dwDataLength
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WRITE_4BYTES( afd.maxRecordSize ); //dwSuggestedBufferSize
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WRITE_4BYTES( -1 ); //dwQuality
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WRITE_4BYTES( 0 ); //dwSampleSize
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WRITE_2BYTES( 0 ); //rcFrame
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WRITE_2BYTES( 0 ); //rcFrame
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WRITE_2BYTES( afd.width ); //rcFrame
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WRITE_2BYTES( afd.height ); //rcFrame
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WRITE_STRING( "strf" );
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WRITE_4BYTES( 40 ); //"strf" "chunk" size
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WRITE_4BYTES( 40 ); //biSize
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WRITE_4BYTES( afd.width ); //biWidth
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WRITE_4BYTES( afd.height ); //biHeight
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WRITE_2BYTES( 1 ); //biPlanes
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WRITE_2BYTES( 24 ); //biBitCount
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if( afd.motionJpeg ) //biCompression
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{
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WRITE_STRING( "MJPG" );
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WRITE_4BYTES( afd.width *
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afd.height ); //biSizeImage
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}
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else
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{
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WRITE_4BYTES( 0 ); // BI_RGB
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WRITE_4BYTES( afd.width *
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afd.height * 3 ); //biSizeImage
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}
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WRITE_4BYTES( 0 ); //biXPelsPetMeter
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WRITE_4BYTES( 0 ); //biYPelsPetMeter
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WRITE_4BYTES( 0 ); //biClrUsed
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WRITE_4BYTES( 0 ); //biClrImportant
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}
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END_CHUNK( );
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if( afd.audio )
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{
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START_CHUNK( "LIST" );
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{
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WRITE_STRING( "strl" );
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WRITE_STRING( "strh" );
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WRITE_4BYTES( 56 ); //"strh" "chunk" size
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WRITE_STRING( "auds" );
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WRITE_4BYTES( 0 ); //FCC
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WRITE_4BYTES( 0 ); //dwFlags
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WRITE_4BYTES( 0 ); //dwPriority
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WRITE_4BYTES( 0 ); //dwInitialFrame
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WRITE_4BYTES( afd.a.sampleSize ); //dwTimescale
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WRITE_4BYTES( afd.a.sampleSize *
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afd.a.rate ); //dwDataRate
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WRITE_4BYTES( 0 ); //dwStartTime
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WRITE_4BYTES( afd.a.totalBytes /
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afd.a.sampleSize ); //dwDataLength
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WRITE_4BYTES( 0 ); //dwSuggestedBufferSize
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WRITE_4BYTES( -1 ); //dwQuality
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WRITE_4BYTES( afd.a.sampleSize ); //dwSampleSize
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WRITE_2BYTES( 0 ); //rcFrame
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WRITE_2BYTES( 0 ); //rcFrame
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WRITE_2BYTES( 0 ); //rcFrame
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WRITE_2BYTES( 0 ); //rcFrame
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WRITE_STRING( "strf" );
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WRITE_4BYTES( 18 ); //"strf" "chunk" size
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WRITE_2BYTES( afd.a.format ); //wFormatTag
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WRITE_2BYTES( afd.a.channels ); //nChannels
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WRITE_4BYTES( afd.a.rate ); //nSamplesPerSec
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WRITE_4BYTES( afd.a.sampleSize *
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afd.a.rate ); //nAvgBytesPerSec
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WRITE_2BYTES( afd.a.sampleSize ); //nBlockAlign
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WRITE_2BYTES( afd.a.bits ); //wBitsPerSample
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WRITE_2BYTES( 0 ); //cbSize
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}
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END_CHUNK( );
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}
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}
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END_CHUNK( );
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afd.moviOffset = bufIndex;
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START_CHUNK( "LIST" );
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{
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WRITE_STRING( "movi" );
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}
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}
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}
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}
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/*
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===============
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CL_OpenAVIForWriting
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Creates an AVI file and gets it into a state where
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writing the actual data can begin
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===============
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*/
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qboolean CL_OpenAVIForWriting( const char *fileName )
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{
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if( afd.fileOpen )
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return qfalse;
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Com_Memset( &afd, 0, sizeof( aviFileData_t ) );
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// Don't start if a framerate has not been chosen
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if( cl_aviFrameRate->integer <= 0 )
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{
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Com_Printf( S_COLOR_RED "cl_aviFrameRate must be >= 1\n" );
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return qfalse;
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}
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if( ( afd.f = FS_FOpenFileWrite( fileName ) ) <= 0 )
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return qfalse;
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if( ( afd.idxF = FS_FOpenFileWrite(
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va( "%s" INDEX_FILE_EXTENSION, fileName ) ) ) <= 0 )
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{
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FS_FCloseFile( afd.f );
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return qfalse;
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}
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Q_strncpyz( afd.fileName, fileName, MAX_QPATH );
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afd.frameRate = cl_aviFrameRate->integer;
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afd.framePeriod = (int)( 1000000.0f / afd.frameRate );
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afd.width = cls.glconfig.vidWidth;
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afd.height = cls.glconfig.vidHeight;
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if( cl_aviMotionJpeg->integer )
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afd.motionJpeg = qtrue;
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else
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afd.motionJpeg = qfalse;
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// Buffers only need to store RGB pixels.
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// Allocate a bit more space for the capture buffer to account for possible
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// padding at the end of pixel lines, and padding for alignment
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#define MAX_PACK_LEN 16
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afd.cBuffer = Z_Malloc((afd.width * 3 + MAX_PACK_LEN - 1) * afd.height + MAX_PACK_LEN - 1);
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// raw avi files have pixel lines start on 4-byte boundaries
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afd.eBuffer = Z_Malloc(PAD(afd.width * 3, AVI_LINE_PADDING) * afd.height);
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afd.a.rate = dma.speed;
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afd.a.format = WAV_FORMAT_PCM;
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afd.a.channels = dma.channels;
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afd.a.bits = dma.samplebits;
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afd.a.sampleSize = ( afd.a.bits / 8 ) * afd.a.channels;
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if( afd.a.rate % afd.frameRate )
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{
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int suggestRate = afd.frameRate;
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while( ( afd.a.rate % suggestRate ) && suggestRate >= 1 )
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suggestRate--;
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Com_Printf( S_COLOR_YELLOW "WARNING: cl_aviFrameRate is not a divisor "
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"of the audio rate, suggest %d\n", suggestRate );
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}
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if( !Cvar_VariableIntegerValue( "s_initsound" ) )
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{
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afd.audio = qfalse;
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}
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else if( Q_stricmp( Cvar_VariableString( "s_backend" ), "OpenAL" ) )
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{
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if( afd.a.bits != 16 || afd.a.channels != 2 )
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{
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Com_Printf( S_COLOR_YELLOW "WARNING: Audio format of %d bit/%d channels not supported",
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afd.a.bits, afd.a.channels );
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afd.audio = qfalse;
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}
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else
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afd.audio = qtrue;
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}
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else
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{
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afd.audio = qfalse;
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Com_Printf( S_COLOR_YELLOW "WARNING: Audio capture is not supported "
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"with OpenAL. Set s_useOpenAL to 0 for audio capture\n" );
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}
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// This doesn't write a real header, but allocates the
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// correct amount of space at the beginning of the file
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CL_WriteAVIHeader( );
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SafeFS_Write( buffer, bufIndex, afd.f );
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afd.fileSize = bufIndex;
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bufIndex = 0;
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START_CHUNK( "idx1" );
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SafeFS_Write( buffer, bufIndex, afd.idxF );
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afd.moviSize = 4; // For the "movi"
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afd.fileOpen = qtrue;
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return qtrue;
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}
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/*
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===============
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CL_CheckFileSize
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===============
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*/
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static qboolean CL_CheckFileSize( int bytesToAdd )
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{
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unsigned int newFileSize;
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newFileSize =
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afd.fileSize + // Current file size
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bytesToAdd + // What we want to add
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( afd.numIndices * 16 ) + // The index
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4; // The index size
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// I assume all the operating systems
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// we target can handle a 2Gb file
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if( newFileSize > INT_MAX )
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{
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// Close the current file...
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CL_CloseAVI( );
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// ...And open a new one
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CL_OpenAVIForWriting( va( "%s_", afd.fileName ) );
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return qtrue;
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}
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return qfalse;
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}
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/*
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===============
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CL_WriteAVIVideoFrame
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===============
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*/
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void CL_WriteAVIVideoFrame( const byte *imageBuffer, int size )
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{
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int chunkOffset = afd.fileSize - afd.moviOffset - 8;
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int chunkSize = 8 + size;
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int paddingSize = PADLEN(size, 2);
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byte padding[ 4 ] = { 0 };
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if( !afd.fileOpen )
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return;
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// Chunk header + contents + padding
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if( CL_CheckFileSize( 8 + size + 2 ) )
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return;
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bufIndex = 0;
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WRITE_STRING( "00dc" );
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WRITE_4BYTES( size );
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SafeFS_Write( buffer, 8, afd.f );
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SafeFS_Write( imageBuffer, size, afd.f );
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SafeFS_Write( padding, paddingSize, afd.f );
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afd.fileSize += ( chunkSize + paddingSize );
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afd.numVideoFrames++;
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afd.moviSize += ( chunkSize + paddingSize );
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if( size > afd.maxRecordSize )
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afd.maxRecordSize = size;
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// Index
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bufIndex = 0;
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WRITE_STRING( "00dc" ); //dwIdentifier
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WRITE_4BYTES( 0x00000010 ); //dwFlags (all frames are KeyFrames)
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WRITE_4BYTES( chunkOffset ); //dwOffset
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WRITE_4BYTES( size ); //dwLength
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SafeFS_Write( buffer, 16, afd.idxF );
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afd.numIndices++;
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}
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#define PCM_BUFFER_SIZE 44100
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/*
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===============
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CL_WriteAVIAudioFrame
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===============
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*/
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void CL_WriteAVIAudioFrame( const byte *pcmBuffer, int size )
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{
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static byte pcmCaptureBuffer[ PCM_BUFFER_SIZE ] = { 0 };
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static int bytesInBuffer = 0;
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if( !afd.audio )
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return;
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if( !afd.fileOpen )
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return;
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// Chunk header + contents + padding
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if( CL_CheckFileSize( 8 + bytesInBuffer + size + 2 ) )
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return;
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if( bytesInBuffer + size > PCM_BUFFER_SIZE )
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{
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Com_Printf( S_COLOR_YELLOW
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"WARNING: Audio capture buffer overflow -- truncating\n" );
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size = PCM_BUFFER_SIZE - bytesInBuffer;
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}
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Com_Memcpy( &pcmCaptureBuffer[ bytesInBuffer ], pcmBuffer, size );
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bytesInBuffer += size;
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// Only write if we have a frame's worth of audio
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|
if( bytesInBuffer >= (int)ceil( (float)afd.a.rate / (float)afd.frameRate ) *
|
|
afd.a.sampleSize )
|
|
{
|
|
int chunkOffset = afd.fileSize - afd.moviOffset - 8;
|
|
int chunkSize = 8 + bytesInBuffer;
|
|
int paddingSize = PADLEN(bytesInBuffer, 2);
|
|
byte padding[ 4 ] = { 0 };
|
|
|
|
bufIndex = 0;
|
|
WRITE_STRING( "01wb" );
|
|
WRITE_4BYTES( bytesInBuffer );
|
|
|
|
SafeFS_Write( buffer, 8, afd.f );
|
|
SafeFS_Write( pcmCaptureBuffer, bytesInBuffer, afd.f );
|
|
SafeFS_Write( padding, paddingSize, afd.f );
|
|
afd.fileSize += ( chunkSize + paddingSize );
|
|
|
|
afd.numAudioFrames++;
|
|
afd.moviSize += ( chunkSize + paddingSize );
|
|
afd.a.totalBytes += bytesInBuffer;
|
|
|
|
// Index
|
|
bufIndex = 0;
|
|
WRITE_STRING( "01wb" ); //dwIdentifier
|
|
WRITE_4BYTES( 0 ); //dwFlags
|
|
WRITE_4BYTES( chunkOffset ); //dwOffset
|
|
WRITE_4BYTES( bytesInBuffer ); //dwLength
|
|
SafeFS_Write( buffer, 16, afd.idxF );
|
|
|
|
afd.numIndices++;
|
|
|
|
bytesInBuffer = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
===============
|
|
CL_TakeVideoFrame
|
|
===============
|
|
*/
|
|
void CL_TakeVideoFrame( void )
|
|
{
|
|
// AVI file isn't open
|
|
if( !afd.fileOpen )
|
|
return;
|
|
|
|
re.TakeVideoFrame( afd.width, afd.height,
|
|
afd.cBuffer, afd.eBuffer, afd.motionJpeg );
|
|
}
|
|
|
|
/*
|
|
===============
|
|
CL_CloseAVI
|
|
|
|
Closes the AVI file and writes an index chunk
|
|
===============
|
|
*/
|
|
qboolean CL_CloseAVI( void )
|
|
{
|
|
int indexRemainder;
|
|
int indexSize = afd.numIndices * 16;
|
|
const char *idxFileName = va( "%s" INDEX_FILE_EXTENSION, afd.fileName );
|
|
|
|
// AVI file isn't open
|
|
if( !afd.fileOpen )
|
|
return qfalse;
|
|
|
|
afd.fileOpen = qfalse;
|
|
|
|
FS_Seek( afd.idxF, 4, FS_SEEK_SET );
|
|
bufIndex = 0;
|
|
WRITE_4BYTES( indexSize );
|
|
SafeFS_Write( buffer, bufIndex, afd.idxF );
|
|
FS_FCloseFile( afd.idxF );
|
|
|
|
// Write index
|
|
|
|
// Open the temp index file
|
|
if( ( indexSize = FS_FOpenFileRead( idxFileName,
|
|
&afd.idxF, qtrue ) ) <= 0 )
|
|
{
|
|
FS_FCloseFile( afd.f );
|
|
return qfalse;
|
|
}
|
|
|
|
indexRemainder = indexSize;
|
|
|
|
// Append index to end of avi file
|
|
while( indexRemainder > MAX_AVI_BUFFER )
|
|
{
|
|
FS_Read( buffer, MAX_AVI_BUFFER, afd.idxF );
|
|
SafeFS_Write( buffer, MAX_AVI_BUFFER, afd.f );
|
|
afd.fileSize += MAX_AVI_BUFFER;
|
|
indexRemainder -= MAX_AVI_BUFFER;
|
|
}
|
|
FS_Read( buffer, indexRemainder, afd.idxF );
|
|
SafeFS_Write( buffer, indexRemainder, afd.f );
|
|
afd.fileSize += indexRemainder;
|
|
FS_FCloseFile( afd.idxF );
|
|
|
|
// Remove temp index file
|
|
FS_HomeRemove( idxFileName );
|
|
|
|
// Write the real header
|
|
FS_Seek( afd.f, 0, FS_SEEK_SET );
|
|
CL_WriteAVIHeader( );
|
|
|
|
bufIndex = 4;
|
|
WRITE_4BYTES( afd.fileSize - 8 ); // "RIFF" size
|
|
|
|
bufIndex = afd.moviOffset + 4; // Skip "LIST"
|
|
WRITE_4BYTES( afd.moviSize );
|
|
|
|
SafeFS_Write( buffer, bufIndex, afd.f );
|
|
|
|
Z_Free( afd.cBuffer );
|
|
Z_Free( afd.eBuffer );
|
|
FS_FCloseFile( afd.f );
|
|
|
|
Com_Printf( "Wrote %d:%d frames to %s\n", afd.numVideoFrames, afd.numAudioFrames, afd.fileName );
|
|
|
|
return qtrue;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
CL_VideoRecording
|
|
===============
|
|
*/
|
|
qboolean CL_VideoRecording( void )
|
|
{
|
|
return afd.fileOpen;
|
|
}
|