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-rw-r--r--src/client/cl_avi.c664
1 files changed, 664 insertions, 0 deletions
diff --git a/src/client/cl_avi.c b/src/client/cl_avi.c
new file mode 100644
index 0000000..c54e705
--- /dev/null
+++ b/src/client/cl_avi.c
@@ -0,0 +1,664 @@
+/*
+===========================================================================
+Copyright (C) 2005-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous 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.
+
+Tremulous 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 Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+===========================================================================
+*/
+
+#include "client.h"
+#include "snd_local.h"
+
+#define INDEX_FILE_EXTENSION ".index.dat"
+
+#define MAX_RIFF_CHUNKS 16
+
+typedef struct audioFormat_s
+{
+ int rate;
+ int format;
+ int channels;
+ int bits;
+
+ int sampleSize;
+ int totalBytes;
+} audioFormat_t;
+
+typedef struct aviFileData_s
+{
+ qboolean fileOpen;
+ fileHandle_t f;
+ char fileName[ MAX_QPATH ];
+ int fileSize;
+ int moviOffset;
+ int moviSize;
+
+ fileHandle_t idxF;
+ int numIndices;
+
+ int frameRate;
+ int framePeriod;
+ int width, height;
+ int numVideoFrames;
+ int maxRecordSize;
+ qboolean motionJpeg;
+
+ qboolean audio;
+ audioFormat_t a;
+ int numAudioFrames;
+
+ int chunkStack[ MAX_RIFF_CHUNKS ];
+ int chunkStackTop;
+
+ byte *cBuffer, *eBuffer;
+} aviFileData_t;
+
+static aviFileData_t afd;
+
+#define MAX_AVI_BUFFER 2048
+
+static byte buffer[ MAX_AVI_BUFFER ];
+static int bufIndex;
+
+/*
+===============
+SafeFS_Write
+===============
+*/
+static ID_INLINE void SafeFS_Write( const void *buffer, int len, fileHandle_t f )
+{
+ if( FS_Write( buffer, len, f ) < len )
+ Com_Error( ERR_DROP, "Failed to write avi file\n" );
+}
+
+/*
+===============
+WRITE_STRING
+===============
+*/
+static ID_INLINE void WRITE_STRING( const char *s )
+{
+ Com_Memcpy( &buffer[ bufIndex ], s, strlen( s ) );
+ bufIndex += strlen( s );
+}
+
+/*
+===============
+WRITE_4BYTES
+===============
+*/
+static ID_INLINE void WRITE_4BYTES( int x )
+{
+ buffer[ bufIndex + 0 ] = (byte)( ( x >> 0 ) & 0xFF );
+ buffer[ bufIndex + 1 ] = (byte)( ( x >> 8 ) & 0xFF );
+ buffer[ bufIndex + 2 ] = (byte)( ( x >> 16 ) & 0xFF );
+ buffer[ bufIndex + 3 ] = (byte)( ( x >> 24 ) & 0xFF );
+ bufIndex += 4;
+}
+
+/*
+===============
+WRITE_2BYTES
+===============
+*/
+static ID_INLINE void WRITE_2BYTES( int x )
+{
+ buffer[ bufIndex + 0 ] = (byte)( ( x >> 0 ) & 0xFF );
+ buffer[ bufIndex + 1 ] = (byte)( ( x >> 8 ) & 0xFF );
+ bufIndex += 2;
+}
+
+/*
+===============
+WRITE_1BYTES
+===============
+*/
+static ID_INLINE void WRITE_1BYTES( int x )
+{
+ buffer[ bufIndex ] = x;
+ bufIndex += 1;
+}
+
+/*
+===============
+START_CHUNK
+===============
+*/
+static ID_INLINE void START_CHUNK( const char *s )
+{
+ if( afd.chunkStackTop == MAX_RIFF_CHUNKS )
+ {
+ Com_Error( ERR_DROP, "ERROR: Top of chunkstack breached\n" );
+ }
+
+ afd.chunkStack[ afd.chunkStackTop ] = bufIndex;
+ afd.chunkStackTop++;
+ WRITE_STRING( s );
+ WRITE_4BYTES( 0 );
+}
+
+/*
+===============
+END_CHUNK
+===============
+*/
+static ID_INLINE void END_CHUNK( void )
+{
+ int endIndex = bufIndex;
+
+ if( afd.chunkStackTop <= 0 )
+ {
+ Com_Error( ERR_DROP, "ERROR: Bottom of chunkstack breached\n" );
+ }
+
+ afd.chunkStackTop--;
+ bufIndex = afd.chunkStack[ afd.chunkStackTop ];
+ bufIndex += 4;
+ WRITE_4BYTES( endIndex - bufIndex - 4 );
+ bufIndex = endIndex;
+ bufIndex = PAD( bufIndex, 2 );
+}
+
+/*
+===============
+CL_WriteAVIHeader
+===============
+*/
+void CL_WriteAVIHeader( void )
+{
+ bufIndex = 0;
+ afd.chunkStackTop = 0;
+
+ START_CHUNK( "RIFF" );
+ {
+ WRITE_STRING( "AVI " );
+ {
+ START_CHUNK( "LIST" );
+ {
+ WRITE_STRING( "hdrl" );
+ WRITE_STRING( "avih" );
+ WRITE_4BYTES( 56 ); //"avih" "chunk" size
+ WRITE_4BYTES( afd.framePeriod ); //dwMicroSecPerFrame
+ WRITE_4BYTES( afd.maxRecordSize *
+ afd.frameRate ); //dwMaxBytesPerSec
+ WRITE_4BYTES( 0 ); //dwReserved1
+ WRITE_4BYTES( 0x110 ); //dwFlags bits HAS_INDEX and IS_INTERLEAVED
+ WRITE_4BYTES( afd.numVideoFrames ); //dwTotalFrames
+ WRITE_4BYTES( 0 ); //dwInitialFrame
+
+ if( afd.audio ) //dwStreams
+ WRITE_4BYTES( 2 );
+ else
+ WRITE_4BYTES( 1 );
+
+ WRITE_4BYTES( afd.maxRecordSize ); //dwSuggestedBufferSize
+ WRITE_4BYTES( afd.width ); //dwWidth
+ WRITE_4BYTES( afd.height ); //dwHeight
+ WRITE_4BYTES( 0 ); //dwReserved[ 0 ]
+ WRITE_4BYTES( 0 ); //dwReserved[ 1 ]
+ WRITE_4BYTES( 0 ); //dwReserved[ 2 ]
+ WRITE_4BYTES( 0 ); //dwReserved[ 3 ]
+
+ START_CHUNK( "LIST" );
+ {
+ WRITE_STRING( "strl" );
+ WRITE_STRING( "strh" );
+ WRITE_4BYTES( 56 ); //"strh" "chunk" size
+ WRITE_STRING( "vids" );
+
+ if( afd.motionJpeg )
+ WRITE_STRING( "MJPG" );
+ else
+ WRITE_4BYTES( 0 ); // BI_RGB
+
+ WRITE_4BYTES( 0 ); //dwFlags
+ WRITE_4BYTES( 0 ); //dwPriority
+ WRITE_4BYTES( 0 ); //dwInitialFrame
+
+ WRITE_4BYTES( 1 ); //dwTimescale
+ WRITE_4BYTES( afd.frameRate ); //dwDataRate
+ WRITE_4BYTES( 0 ); //dwStartTime
+ WRITE_4BYTES( afd.numVideoFrames ); //dwDataLength
+
+ WRITE_4BYTES( afd.maxRecordSize ); //dwSuggestedBufferSize
+ WRITE_4BYTES( -1 ); //dwQuality
+ WRITE_4BYTES( 0 ); //dwSampleSize
+ WRITE_2BYTES( 0 ); //rcFrame
+ WRITE_2BYTES( 0 ); //rcFrame
+ WRITE_2BYTES( afd.width ); //rcFrame
+ WRITE_2BYTES( afd.height ); //rcFrame
+
+ WRITE_STRING( "strf" );
+ WRITE_4BYTES( 40 ); //"strf" "chunk" size
+ WRITE_4BYTES( 40 ); //biSize
+ WRITE_4BYTES( afd.width ); //biWidth
+ WRITE_4BYTES( afd.height ); //biHeight
+ WRITE_2BYTES( 1 ); //biPlanes
+ WRITE_2BYTES( 24 ); //biBitCount
+
+ if( afd.motionJpeg ) { //biCompression
+ WRITE_STRING( "MJPG" );
+ WRITE_4BYTES( afd.width *
+ afd.height ); //biSizeImage
+ } else {
+ WRITE_4BYTES( 0 ); // BI_RGB
+ WRITE_4BYTES( afd.width *
+ afd.height*3 ); //biSizeImage
+ }
+
+ WRITE_4BYTES( 0 ); //biXPelsPetMeter
+ WRITE_4BYTES( 0 ); //biYPelsPetMeter
+ WRITE_4BYTES( 0 ); //biClrUsed
+ WRITE_4BYTES( 0 ); //biClrImportant
+ }
+ END_CHUNK( );
+
+ if( afd.audio )
+ {
+ START_CHUNK( "LIST" );
+ {
+ WRITE_STRING( "strl" );
+ WRITE_STRING( "strh" );
+ WRITE_4BYTES( 56 ); //"strh" "chunk" size
+ WRITE_STRING( "auds" );
+ WRITE_4BYTES( 0 ); //FCC
+ WRITE_4BYTES( 0 ); //dwFlags
+ WRITE_4BYTES( 0 ); //dwPriority
+ WRITE_4BYTES( 0 ); //dwInitialFrame
+
+ WRITE_4BYTES( afd.a.sampleSize ); //dwTimescale
+ WRITE_4BYTES( afd.a.sampleSize *
+ afd.a.rate ); //dwDataRate
+ WRITE_4BYTES( 0 ); //dwStartTime
+ WRITE_4BYTES( afd.a.totalBytes /
+ afd.a.sampleSize ); //dwDataLength
+
+ WRITE_4BYTES( 0 ); //dwSuggestedBufferSize
+ WRITE_4BYTES( -1 ); //dwQuality
+ WRITE_4BYTES( afd.a.sampleSize ); //dwSampleSize
+ WRITE_2BYTES( 0 ); //rcFrame
+ WRITE_2BYTES( 0 ); //rcFrame
+ WRITE_2BYTES( 0 ); //rcFrame
+ WRITE_2BYTES( 0 ); //rcFrame
+
+ WRITE_STRING( "strf" );
+ WRITE_4BYTES( 18 ); //"strf" "chunk" size
+ WRITE_2BYTES( afd.a.format ); //wFormatTag
+ WRITE_2BYTES( afd.a.channels ); //nChannels
+ WRITE_4BYTES( afd.a.rate ); //nSamplesPerSec
+ WRITE_4BYTES( afd.a.sampleSize *
+ afd.a.rate ); //nAvgBytesPerSec
+ WRITE_2BYTES( afd.a.sampleSize ); //nBlockAlign
+ WRITE_2BYTES( afd.a.bits ); //wBitsPerSample
+ WRITE_2BYTES( 0 ); //cbSize
+ }
+ END_CHUNK( );
+ }
+ }
+ END_CHUNK( );
+
+ afd.moviOffset = bufIndex;
+
+ START_CHUNK( "LIST" );
+ {
+ WRITE_STRING( "movi" );
+ }
+ }
+ }
+}
+
+/*
+===============
+CL_OpenAVIForWriting
+
+Creates an AVI file and gets it into a state where
+writing the actual data can begin
+===============
+*/
+qboolean CL_OpenAVIForWriting( const char *fileName )
+{
+ if( afd.fileOpen )
+ return qfalse;
+
+ Com_Memset( &afd, 0, sizeof( aviFileData_t ) );
+
+ // Don't start if a framerate has not been chosen
+ if( cl_aviFrameRate->integer <= 0 )
+ {
+ Com_Printf( S_COLOR_RED "cl_aviFrameRate must be >= 1\n" );
+ return qfalse;
+ }
+
+ if( ( afd.f = FS_FOpenFileWrite( fileName ) ) <= 0 )
+ return qfalse;
+
+ if( ( afd.idxF = FS_FOpenFileWrite(
+ va( "%s" INDEX_FILE_EXTENSION, fileName ) ) ) <= 0 )
+ {
+ FS_FCloseFile( afd.f );
+ return qfalse;
+ }
+
+ Q_strncpyz( afd.fileName, fileName, MAX_QPATH );
+
+ afd.frameRate = cl_aviFrameRate->integer;
+ afd.framePeriod = (int)( 1000000.0f / afd.frameRate );
+ afd.width = cls.glconfig.vidWidth;
+ afd.height = cls.glconfig.vidHeight;
+
+ if( cl_aviMotionJpeg->integer )
+ afd.motionJpeg = qtrue;
+ else
+ afd.motionJpeg = qfalse;
+
+ afd.cBuffer = Z_Malloc( afd.width * afd.height * 4 );
+ afd.eBuffer = Z_Malloc( afd.width * afd.height * 4 );
+
+ afd.a.rate = dma.speed;
+ afd.a.format = WAV_FORMAT_PCM;
+ afd.a.channels = dma.channels;
+ afd.a.bits = dma.samplebits;
+ afd.a.sampleSize = ( afd.a.bits / 8 ) * afd.a.channels;
+
+ if( afd.a.rate % afd.frameRate )
+ {
+ int suggestRate = afd.frameRate;
+
+ while( ( afd.a.rate % suggestRate ) && suggestRate >= 1 )
+ suggestRate--;
+
+ Com_Printf( S_COLOR_YELLOW "WARNING: cl_aviFrameRate is not a divisor "
+ "of the audio rate, suggest %d\n", suggestRate );
+ }
+
+ if( !Cvar_VariableIntegerValue( "s_initsound" ) )
+ {
+ afd.audio = qfalse;
+ }
+ else if( Q_stricmp( Cvar_VariableString( "s_backend" ), "OpenAL" ) )
+ {
+ if( afd.a.bits == 16 && afd.a.channels == 2 )
+ afd.audio = qtrue;
+ else
+ afd.audio = qfalse; //FIXME: audio not implemented for this case
+ }
+ else
+ {
+ afd.audio = qfalse;
+ Com_Printf( S_COLOR_YELLOW "WARNING: Audio capture is not supported "
+ "with OpenAL. Set s_useOpenAL to 0 for audio capture\n" );
+ }
+
+ // This doesn't write a real header, but allocates the
+ // correct amount of space at the beginning of the file
+ CL_WriteAVIHeader( );
+
+ SafeFS_Write( buffer, bufIndex, afd.f );
+ afd.fileSize = bufIndex;
+
+ bufIndex = 0;
+ START_CHUNK( "idx1" );
+ SafeFS_Write( buffer, bufIndex, afd.idxF );
+
+ afd.moviSize = 4; // For the "movi"
+ afd.fileOpen = qtrue;
+
+ return qtrue;
+}
+
+/*
+===============
+CL_CheckFileSize
+===============
+*/
+static qboolean CL_CheckFileSize( int bytesToAdd )
+{
+ unsigned int newFileSize;
+
+ newFileSize =
+ afd.fileSize + // Current file size
+ bytesToAdd + // What we want to add
+ ( afd.numIndices * 16 ) + // The index
+ 4; // The index size
+
+ // I assume all the operating systems
+ // we target can handle a 2Gb file
+ if( newFileSize > INT_MAX )
+ {
+ // Close the current file...
+ CL_CloseAVI( );
+
+ // ...And open a new one
+ CL_OpenAVIForWriting( va( "%s_", afd.fileName ) );
+
+ return qtrue;
+ }
+
+ return qfalse;
+}
+
+/*
+===============
+CL_WriteAVIVideoFrame
+===============
+*/
+void CL_WriteAVIVideoFrame( const byte *imageBuffer, int size )
+{
+ int chunkOffset = afd.fileSize - afd.moviOffset - 8;
+ int chunkSize = 8 + size;
+ int paddingSize = PAD( size, 2 ) - size;
+ byte padding[ 4 ] = { 0 };
+
+ if( !afd.fileOpen )
+ return;
+
+ // Chunk header + contents + padding
+ if( CL_CheckFileSize( 8 + size + 2 ) )
+ return;
+
+ bufIndex = 0;
+ WRITE_STRING( "00dc" );
+ WRITE_4BYTES( size );
+
+ SafeFS_Write( buffer, 8, afd.f );
+ SafeFS_Write( imageBuffer, size, afd.f );
+ SafeFS_Write( padding, paddingSize, afd.f );
+ afd.fileSize += ( chunkSize + paddingSize );
+
+ afd.numVideoFrames++;
+ afd.moviSize += ( chunkSize + paddingSize );
+
+ if( size > afd.maxRecordSize )
+ afd.maxRecordSize = size;
+
+ // Index
+ bufIndex = 0;
+ WRITE_STRING( "00dc" ); //dwIdentifier
+ WRITE_4BYTES( 0x00000010 ); //dwFlags (all frames are KeyFrames)
+ WRITE_4BYTES( chunkOffset ); //dwOffset
+ WRITE_4BYTES( size ); //dwLength
+ SafeFS_Write( buffer, 16, afd.idxF );
+
+ afd.numIndices++;
+}
+
+#define PCM_BUFFER_SIZE 44100
+
+/*
+===============
+CL_WriteAVIAudioFrame
+===============
+*/
+void CL_WriteAVIAudioFrame( const byte *pcmBuffer, int size )
+{
+ static byte pcmCaptureBuffer[ PCM_BUFFER_SIZE ] = { 0 };
+ static int bytesInBuffer = 0;
+
+ if( !afd.audio )
+ return;
+
+ if( !afd.fileOpen )
+ return;
+
+ // Chunk header + contents + padding
+ if( CL_CheckFileSize( 8 + bytesInBuffer + size + 2 ) )
+ return;
+
+ if( bytesInBuffer + size > PCM_BUFFER_SIZE )
+ {
+ Com_Printf( S_COLOR_YELLOW
+ "WARNING: Audio capture buffer overflow -- truncating\n" );
+ size = PCM_BUFFER_SIZE - bytesInBuffer;
+ }
+
+ Com_Memcpy( &pcmCaptureBuffer[ bytesInBuffer ], pcmBuffer, size );
+ bytesInBuffer += size;
+
+ // Only write if we have a frame's worth of audio
+ 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 = PAD( bytesInBuffer, 2 ) - bytesInBuffer;
+ byte padding[ 4 ] = { 0 };
+
+ bufIndex = 0;
+ WRITE_STRING( "01wb" );
+ WRITE_4BYTES( bytesInBuffer );
+
+ SafeFS_Write( buffer, 8, afd.f );
+ SafeFS_Write( pcmBuffer, 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;
+}
generated by cgit (git 2.34.1) at 2024-12-25 19:11:33 +0000