* AVI video output

  - Uses motion jpeg codec by default
  - Use cl_avidemo to set a framerate
  - \video [filename] to start capture
  - \stopvideo to stop capture
  - Audio capture is a bit ropey

code/client/cl_main.c

@@ -44,6 +44,7 @@ cvar_t	*cl_shownet;
 cvar_t	*cl_showSend;
 cvar_t	*cl_timedemo;
 cvar_t	*cl_avidemo;
+cvar_t	*cl_aviMotionJpeg;
 cvar_t	*cl_forceavidemo;
 
 cvar_t	*cl_freelook;
@@ -773,6 +774,11 @@ void CL_Disconnect( qboolean showMainMenu ) {
 
 	// not connected to a pure server anymore
 	cl_connectedToPureServer = qfalse;
+
+	// Stop recording any video
+	if( CL_VideoRecording( ) ) {
+		CL_CloseAVI( );
+	}
 }
 
 
@@ -1189,6 +1195,11 @@ doesn't know what graphics to reload
 */
 void CL_Vid_Restart_f( void ) {
 
+	// Settings may have changed so stop recording now
+	if( CL_VideoRecording( ) ) {
+		CL_CloseAVI( );
+	}
+
 	// don't let them loop during the restart
 	S_StopAllSounds();
 	// shutdown the UI
@@ -2014,15 +2025,16 @@ void CL_Frame ( int msec ) {
 	}
 
 	// if recording an avi, lock to a fixed fps
-	if ( cl_avidemo->integer && msec) {
+	if ( CL_VideoRecording( ) && cl_avidemo->integer && msec) {
 		// save the current screen
 		if ( cls.state == CA_ACTIVE || cl_forceavidemo->integer) {
-			Cbuf_ExecuteText( EXEC_NOW, "screenshot silent\n" );
-		}
-		// fixed time for next frame'
-		msec = (1000 / cl_avidemo->integer) * com_timescale->value;
-		if (msec == 0) {
-			msec = 1;
+			CL_TakeVideoFrame( );
+
+			// fixed time for next frame'
+			msec = (int)ceil( (1000.0f / cl_avidemo->value) * com_timescale->value );
+			if (msec == 0) {
+				msec = 1;
+			}
 		}
 	}
 
@@ -2222,6 +2234,8 @@ void CL_InitRef( void ) {
 	ri.CIN_UploadCinematic = CIN_UploadCinematic;
 	ri.CIN_PlayCinematic = CIN_PlayCinematic;
 	ri.CIN_RunCinematic = CIN_RunCinematic;
+
+	ri.CL_WriteAVIVideoFrame = CL_WriteAVIVideoFrame;
 
 	ret = GetRefAPI( REF_API_VERSION, &ri );
 
@@ -2259,6 +2273,72 @@ void CL_SetModel_f( void ) {
 	}
 }
 
+
+//===========================================================================================
+
+
+/*
+===============
+CL_Video_f
+
+video
+video [filename]
+===============
+*/
+void CL_Video_f( void )
+{
+  char  filename[ MAX_OSPATH ];
+  int   i, last;
+
+  if( Cmd_Argc( ) == 2 )
+  {
+    // explicit filename
+    Com_sprintf( filename, MAX_OSPATH, "videos/%s.avi", Cmd_Argv( 1 ) );
+  }
+  else
+  {
+    // scan for a free filename
+    for( i = 0; i <= 9999; i++ )
+    {
+      int a, b, c, d;
+
+      last = i;
+
+      a = last / 1000;
+      last -= a * 1000;
+      b = last / 100;
+      last -= b * 100;
+      c = last / 10;
+      last -= c * 10;
+      d = last;
+
+      Com_sprintf( filename, MAX_OSPATH, "videos/video%d%d%d%d.avi",
+          a, b, c, d );
+
+      if( !FS_FileExists( filename ) )
+        break; // file doesn't exist
+    }
+
+    if( i > 9999 )
+    {
+      Com_Printf( S_COLOR_RED "ERROR: no free file names to create video\n" );
+      return;
+    }
+  }
+
+  CL_OpenAVIForWriting( filename );
+}
+
+/*
+===============
+CL_StopVideo_f
+===============
+*/
+void CL_StopVideo_f( void )
+{
+  CL_CloseAVI( );
+}
+
 /*
 ====================
 CL_Init
@@ -2294,7 +2374,8 @@ void CL_Init( void ) {
 	cl_activeAction = Cvar_Get( "activeAction", "", CVAR_TEMP );
 
 	cl_timedemo = Cvar_Get ("timedemo", "0", 0);
-	cl_avidemo = Cvar_Get ("cl_avidemo", "0", 0);
+	cl_avidemo = Cvar_Get ("cl_avidemo", "25", CVAR_ARCHIVE);
+	cl_aviMotionJpeg = Cvar_Get ("cl_aviMotionJpeg", "1", CVAR_ARCHIVE);
 	cl_forceavidemo = Cvar_Get ("cl_forceavidemo", "0", 0);
 
 	rconAddress = Cvar_Get ("rconAddress", "", 0);
@@ -2395,6 +2476,8 @@ void CL_Init( void ) {
 	Cmd_AddCommand ("fs_openedList", CL_OpenedPK3List_f );
 	Cmd_AddCommand ("fs_referencedList", CL_ReferencedPK3List_f );
 	Cmd_AddCommand ("model", CL_SetModel_f );
+	Cmd_AddCommand ("video", CL_Video_f );
+	Cmd_AddCommand ("stopvideo", CL_StopVideo_f );
 	CL_InitRef();
 
 	SCR_Init ();
@@ -2450,6 +2533,8 @@ void CL_Shutdown( void ) {
 	Cmd_RemoveCommand ("serverstatus");
 	Cmd_RemoveCommand ("showip");
 	Cmd_RemoveCommand ("model");
+	Cmd_RemoveCommand ("video");
+	Cmd_RemoveCommand ("stopvideo");
 
 	Cvar_Set( "cl_running", "0" );
 

code/client/client.h

@@ -343,6 +343,8 @@ extern	cvar_t	*m_side;
 extern	cvar_t	*m_filter;
 
 extern	cvar_t	*cl_timedemo;
+extern	cvar_t	*cl_avidemo;
+extern	cvar_t	*cl_aviMotionJpeg;
 
 extern	cvar_t	*cl_activeAction;
 
@@ -518,3 +520,13 @@ void LAN_SaveServersToCache( void );
 void CL_Netchan_Transmit( netchan_t *chan, msg_t* msg);	//int length, const byte *data );
 void CL_Netchan_TransmitNextFragment( netchan_t *chan );
 qboolean CL_Netchan_Process( netchan_t *chan, msg_t *msg );
+
+//
+// cl_avi.c
+//
+qboolean CL_OpenAVIForWriting( const char *filename );
+void CL_TakeVideoFrame( void );
+void CL_WriteAVIVideoFrame( const byte *imageBuffer, int size );
+void CL_WriteAVIAudioFrame( const byte *pcmBuffer, int size );
+qboolean CL_CloseAVI( void );
+qboolean CL_VideoRecording( void );

code/client/snd_dma.c

@@ -1139,6 +1139,12 @@ void S_GetSoundtime(void)
 
 	fullsamples = dma.samples / dma.channels;
 
+	if( CL_VideoRecording( ) )
+	{
+		s_soundtime += (int)ceil( dma.speed / cl_avidemo->value );
+		return;
+	}
+
 	// it is possible to miscount buffers if it has wrapped twice between
 	// calls to S_Update.  Oh well.
 	samplepos = SNDDMA_GetDMAPos();

code/client/snd_main.c

@@ -29,6 +29,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 cvar_t *s_volume;
 cvar_t *s_musicVolume;
 cvar_t *s_doppler;
+cvar_t *s_backend;
 
 static soundInterface_t si;
 
@@ -370,6 +371,7 @@ void S_Init( void )
 	s_volume = Cvar_Get( "s_volume", "0.8", CVAR_ARCHIVE );
 	s_musicVolume = Cvar_Get( "s_musicvolume", "0.25", CVAR_ARCHIVE );
 	s_doppler = Cvar_Get( "s_doppler", "1", CVAR_ARCHIVE );
+	s_backend = Cvar_Get( "s_backend", "", CVAR_ROM );
 
 	cv = Cvar_Get( "s_initsound", "1", 0 );
 	if( !cv->integer ) {
@@ -388,10 +390,12 @@ void S_Init( void )
 		if( cv->integer ) {
 			//OpenAL
 			started = S_AL_Init( &si );
+			Cvar_Set( "s_backend", "OpenAL" );
 		}
 
 		if( !started ) {
 			started = S_Base_Init( &si );
+			Cvar_Set( "s_backend", "base" );
 		}
 
 		if( started ) {

code/client/snd_mix.c

@@ -21,6 +21,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 // snd_mix.c -- portable code to mix sounds for snd_dma.c
 
+#include "client.h"
 #include "snd_local.h"
 #if idppc_altivec && !defined(MACOS_X)
 #include <altivec.h>
@@ -137,6 +138,9 @@ void S_TransferStereo16 (unsigned long *pbuf, int endtime)
 
 		snd_p += snd_linear_count;
 		ls_paintedtime += (snd_linear_count>>1);
+
+		if( CL_VideoRecording( ) )
+			CL_WriteAVIAudioFrame( (byte *)snd_out, snd_linear_count << 1 );
 	}
 }
 

code/qcommon/files.c

@@ -565,10 +565,21 @@ FS_Remove
 
 ===========
 */
-static void FS_Remove( const char *osPath ) {
+void FS_Remove( const char *osPath ) {
 	remove( osPath );
 }
 
+/*
+===========
+FS_HomeRemove
+
+===========
+*/
+void FS_HomeRemove( const char *homePath ) {
+	remove( FS_BuildOSPath( fs_homepath->string,
+			fs_gamedir, homePath ) );
+}
+
 /*
 ================
 FS_FileExists

code/qcommon/qcommon.h

@@ -654,6 +654,9 @@ qboolean FS_ComparePaks( char *neededpaks, int len, qboolean dlstring );
 
 void FS_Rename( const char *from, const char *to );
 
+void FS_Remove( const char *osPath );
+void FS_HomeRemove( const char *homePath );
+
 /*
 ==============================================================
 
@@ -899,7 +902,6 @@ void S_ClearSoundBuffer( void );
 
 void SCR_DebugGraph (float value, int color);	// FIXME: move logging to common?
 
-
 //
 // server interface
 //

code/renderer/tr_backend.c

@@ -1081,6 +1081,9 @@ void RB_ExecuteRenderCommands( const void *data ) {
 		case RC_SCREENSHOT:
 			data = RB_TakeScreenshotCmd( data );
 			break;
+		case RC_VIDEOFRAME:
+			data = RB_TakeVideoFrameCmd( data );
+			break;
 
 		case RC_END_OF_LIST:
 		default:

code/renderer/tr_cmds.c

@@ -445,3 +445,30 @@ void RE_EndFrame( int *frontEndMsec, int *backEndMsec ) {
 	backEnd.pc.msec = 0;
 }
 
+/*
+=============
+RE_TakeVideoFrame
+=============
+*/
+void RE_TakeVideoFrame( int width, int height,
+		byte *captureBuffer, byte *encodeBuffer, qboolean motionJpeg )
+{
+	videoFrameCommand_t	*cmd;
+
+	if( !tr.registered ) {
+		return;
+	}
+
+	cmd = R_GetCommandBuffer( sizeof( *cmd ) );
+	if( !cmd ) {
+		return;
+	}
+
+	cmd->commandId = RC_VIDEOFRAME;
+
+	cmd->width = width;
+	cmd->height = height;
+	cmd->captureBuffer = captureBuffer;
+	cmd->encodeBuffer = encodeBuffer;
+	cmd->motionJpeg = motionJpeg;
+}

code/renderer/tr_image.c

@@ -1852,6 +1852,64 @@ void SaveJPG(char * filename, int quality, int image_width, int image_height, un
   /* And we're done! */
 }
 
+/*
+=================
+SaveJPGToBuffer
+=================
+*/
+int SaveJPGToBuffer( byte *buffer, int quality,
+    int image_width, int image_height,
+    byte *image_buffer )
+{
+  struct jpeg_compress_struct cinfo;
+  struct jpeg_error_mgr jerr;
+  JSAMPROW row_pointer[1];	/* pointer to JSAMPLE row[s] */
+  int row_stride;		/* physical row width in image buffer */
+
+  /* Step 1: allocate and initialize JPEG compression object */
+  cinfo.err = jpeg_std_error(&jerr);
+  /* Now we can initialize the JPEG compression object. */
+  jpeg_create_compress(&cinfo);
+
+  /* Step 2: specify data destination (eg, a file) */
+  /* Note: steps 2 and 3 can be done in either order. */
+  jpegDest(&cinfo, buffer, image_width*image_height*4);
+
+  /* Step 3: set parameters for compression */
+  cinfo.image_width = image_width; 	/* image width and height, in pixels */
+  cinfo.image_height = image_height;
+  cinfo.input_components = 4;		/* # of color components per pixel */
+  cinfo.in_color_space = JCS_RGB; 	/* colorspace of input image */
+
+  jpeg_set_defaults(&cinfo);
+  jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */);
+
+  /* Step 4: Start compressor */
+  jpeg_start_compress(&cinfo, TRUE);
+
+  /* Step 5: while (scan lines remain to be written) */
+  /*           jpeg_write_scanlines(...); */
+  row_stride = image_width * 4;	/* JSAMPLEs per row in image_buffer */
+
+  while (cinfo.next_scanline < cinfo.image_height) {
+    /* jpeg_write_scanlines expects an array of pointers to scanlines.
+     * Here the array is only one element long, but you could pass
+     * more than one scanline at a time if that's more convenient.
+     */
+    row_pointer[0] = & image_buffer[((cinfo.image_height-1)*row_stride)-cinfo.next_scanline * row_stride];
+    (void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
+  }
+
+  /* Step 6: Finish compression */
+  jpeg_finish_compress(&cinfo);
+
+  /* Step 7: release JPEG compression object */
+  jpeg_destroy_compress(&cinfo);
+
+  /* And we're done! */
+  return hackSize;
+}
+
 //===================================================================
 
 /*