author | Stepan777 <stepik-777@mail.ru> |
Sat, 07 Jul 2012 19:17:50 +0400 | |
changeset 7363 | 09af8bc9181f |
parent 7306 | 3cff5c769509 |
child 7369 | 46921fbe76d3 |
permissions | -rw-r--r-- |
7180 | 1 |
(* |
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* Hedgewars, a free turn based strategy game |
|
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* Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com> |
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4 |
* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; version 2 of the License |
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8 |
* |
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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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||
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{$INCLUDE "options.inc"} |
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unit uVideoRec; |
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{$IFNDEF USE_VIDEO_RECORDING} |
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interface |
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implementation |
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end. |
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{$ELSE} |
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7180 | 30 |
{$IFDEF UNIX} |
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{$LINKLIB avwrapper} |
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{$LINKLIB avutil} |
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{$LINKLIB avcodec} |
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{$LINKLIB avformat} |
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{$ENDIF} |
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interface |
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var flagPrerecording: boolean = false; |
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41 |
function BeginVideoRecording: Boolean; |
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function LoadNextCameraPosition: LongInt; |
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procedure EncodeFrame; |
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procedure StopVideoRecording; |
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procedure BeginPreRecording; |
7180 | 47 |
procedure StopPreRecording; |
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procedure SaveCameraPosition; |
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49 |
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procedure freeModule; |
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implementation |
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uses uVariables, uUtils, GLunit, SDLh, SysUtils, uIO, uMisc, uTypes; |
7180 | 55 |
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{$IFDEF WIN32} |
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const AVWrapperLibName = 'libavwrapper.dll'; |
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{$ENDIF} |
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type TAddFileLogRaw = procedure (s: pchar); cdecl; |
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{$IFDEF WIN32} |
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procedure AVWrapper_Init( |
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AddLog: TAddFileLogRaw; |
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filename, desc, soundFile, format, vcodec, acodec, preset: PChar; |
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width, height, framerateNum, framerateDen, vquality, aquality: LongInt); cdecl; external AVWrapperLibName; |
7180 | 67 |
procedure AVWrapper_Close; cdecl; external AVWrapperLibName; |
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procedure AVWrapper_WriteFrame( pY, pCb, pCr: PByte ); cdecl; external AVWrapperLibName; |
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{$ELSE} |
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procedure AVWrapper_Init( |
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AddLog: TAddFileLogRaw; |
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filename, desc, soundFile, format, vcodec, acodec, preset: PChar; |
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width, height, framerateNum, framerateDen, vquality, aquality: LongInt); cdecl; external; |
7180 | 74 |
procedure AVWrapper_Close; cdecl; external; |
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procedure AVWrapper_WriteFrame( pY, pCb, pCr: PByte ); cdecl; external; |
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{$ENDIF} |
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type TFrame = record |
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ticks: LongWord; |
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CamX, CamY: LongInt; |
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zoom: single; |
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end; |
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var YCbCr_Planes: array[0..2] of PByte; |
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RGB_Buffer: PByte; |
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cameraFile: File of TFrame; |
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audioFile: File; |
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numPixels: LongWord; |
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startTime, numFrames: LongWord; |
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cameraFilePath, soundFilePath: shortstring; |
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thumbnailSaved : Boolean; |
7180 | 92 |
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function BeginVideoRecording: Boolean; |
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var filename, desc: shortstring; |
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begin |
96 |
AddFileLog('BeginVideoRecording'); |
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numPixels:= cScreenWidth*cScreenHeight; |
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100 |
{$IOCHECKS OFF} |
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// open file with prerecorded camera positions |
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cameraFilePath:= UserPathPrefix + '/VideoTemp/' + RecPrefix + '.txtin'; |
7180 | 103 |
Assign(cameraFile, cameraFilePath); |
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Reset(cameraFile); |
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if IOResult <> 0 then |
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begin |
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AddFileLog('Error: Could not read from ' + cameraFilePath); |
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exit(false); |
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end; |
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{$IOCHECKS ON} |
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desc:= ''; |
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if UserNick <> '' then |
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desc+= 'Player: ' + UserNick + #10; |
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if recordFileName <> '' then |
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desc+= 'Record: ' + recordFileName + #10; |
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if cMapName <> '' then |
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desc+= 'Map: ' + cMapName + #10; |
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if Theme <> '' then |
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desc+= 'Theme: ' + Theme + #10; |
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desc+= 'prefix[' + RecPrefix + ']prefix'; |
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desc+= #0; |
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filename:= UserPathPrefix + '/VideoTemp/' + RecPrefix + #0; |
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soundFilePath:= UserPathPrefix + '/VideoTemp/' + RecPrefix + '.sw' + #0; |
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cAVFormat+= #0; |
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cAudioCodec+= #0; |
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cVideoCodec+= #0; |
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cVideoPreset+= #0; |
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AVWrapper_Init(@AddFileLogRaw, @filename[1], @desc[1], @soundFilePath[1], @cAVFormat[1], @cVideoCodec[1], @cAudioCodec[1], @cVideoPreset[1], |
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cScreenWidth, cScreenHeight, cVideoFramerateNum, cVideoFramerateDen, cAudioQuality, cVideoQuality); |
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YCbCr_Planes[0]:= GetMem(numPixels); |
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YCbCr_Planes[1]:= GetMem(numPixels div 4); |
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YCbCr_Planes[2]:= GetMem(numPixels div 4); |
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if (YCbCr_Planes[0] = nil) or (YCbCr_Planes[1] = nil) or (YCbCr_Planes[2] = nil) then |
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138 |
begin |
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AddFileLog('Error: Could not allocate memory for video recording (YCbCr buffer).'); |
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exit(false); |
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141 |
end; |
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142 |
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143 |
RGB_Buffer:= GetMem(4*numPixels); |
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if RGB_Buffer = nil then |
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begin |
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AddFileLog('Error: Could not allocate memory for video recording (RGB buffer).'); |
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exit(false); |
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148 |
end; |
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149 |
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150 |
BeginVideoRecording:= true; |
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end; |
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152 |
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153 |
procedure StopVideoRecording; |
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154 |
begin |
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155 |
AddFileLog('StopVideoRecording'); |
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156 |
FreeMem(YCbCr_Planes[0], numPixels); |
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157 |
FreeMem(YCbCr_Planes[1], numPixels div 4); |
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158 |
FreeMem(YCbCr_Planes[2], numPixels div 4); |
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159 |
FreeMem(RGB_Buffer, 4*numPixels); |
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160 |
Close(cameraFile); |
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161 |
AVWrapper_Close(); |
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162 |
DeleteFile(cameraFilePath); |
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163 |
DeleteFile(soundFilePath); |
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SendIPC(_S'v'); |
7180 | 165 |
end; |
166 |
||
167 |
function pixel(x, y, color: LongInt): LongInt; |
|
168 |
begin |
|
169 |
pixel:= RGB_Buffer[(cScreenHeight-y-1)*cScreenWidth*4 + x*4 + color]; |
|
170 |
end; |
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171 |
||
172 |
procedure EncodeFrame; |
|
173 |
var x, y, r, g, b: LongInt; |
|
174 |
begin |
|
175 |
// read pixels from OpenGL |
|
176 |
glReadPixels(0, 0, cScreenWidth, cScreenHeight, GL_RGBA, GL_UNSIGNED_BYTE, RGB_Buffer); |
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177 |
||
178 |
// convert to YCbCr 4:2:0 format |
|
179 |
// Y |
|
180 |
for y := 0 to cScreenHeight-1 do |
|
181 |
for x := 0 to cScreenWidth-1 do |
|
182 |
YCbCr_Planes[0][y*cScreenWidth + x]:= Byte(16 + ((16828*pixel(x,y,0) + 33038*pixel(x,y,1) + 6416*pixel(x,y,2)) shr 16)); |
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183 |
||
184 |
// Cb and Cr |
|
185 |
for y := 0 to cScreenHeight div 2 - 1 do |
|
186 |
for x := 0 to cScreenWidth div 2 - 1 do |
|
187 |
begin |
|
188 |
r:= pixel(2*x,2*y,0) + pixel(2*x+1,2*y,0) + pixel(2*x,2*y+1,0) + pixel(2*x+1,2*y+1,0); |
|
189 |
g:= pixel(2*x,2*y,1) + pixel(2*x+1,2*y,1) + pixel(2*x,2*y+1,1) + pixel(2*x+1,2*y+1,1); |
|
190 |
b:= pixel(2*x,2*y,2) + pixel(2*x+1,2*y,2) + pixel(2*x,2*y+1,2) + pixel(2*x+1,2*y+1,2); |
|
191 |
YCbCr_Planes[1][y*(cScreenWidth div 2) + x]:= Byte(128 + ((-2428*r - 4768*g + 7196*b) shr 16)); |
|
192 |
YCbCr_Planes[2][y*(cScreenWidth div 2) + x]:= Byte(128 + (( 7196*r - 6026*g - 1170*b) shr 16)); |
|
193 |
end; |
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194 |
||
195 |
AVWrapper_WriteFrame(YCbCr_Planes[0], YCbCr_Planes[1], YCbCr_Planes[2]); |
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// inform frontend that we have encoded new frame (p for progress) |
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SendIPC(_S'p'); |
7180 | 199 |
end; |
200 |
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// returns new game ticks |
7180 | 202 |
function LoadNextCameraPosition: LongInt; |
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var frame: TFrame; |
7180 | 204 |
begin |
205 |
{$IOCHECKS OFF} |
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206 |
if eof(cameraFile) then |
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207 |
exit(-1); |
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BlockRead(cameraFile, frame, 1); |
7180 | 209 |
{$IOCHECKS ON} |
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WorldDx:= frame.CamX; |
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WorldDy:= frame.CamY + cScreenHeight div 2; |
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zoom:= frame.zoom*cScreenWidth; |
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ZoomValue:= zoom; |
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LoadNextCameraPosition:= frame.ticks; |
7180 | 215 |
end; |
216 |
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// Callback which records sound. |
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// This procedure may be called from different thread. |
7180 | 219 |
procedure RecordPostMix(udata: pointer; stream: PByte; len: LongInt); cdecl; |
220 |
begin |
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udata:= udata; // avoid warning |
7180 | 222 |
{$IOCHECKS OFF} |
223 |
BlockWrite(audioFile, stream^, len); |
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224 |
{$IOCHECKS ON} |
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225 |
end; |
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procedure SaveThumbnail; |
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var thumbpath: shortstring; |
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k: LongInt; |
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230 |
begin |
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thumbpath:= '/VideoTemp/' + RecPrefix; |
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232 |
AddFileLog('Saving thumbnail ' + thumbpath); |
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233 |
if cScreenWidth > cScreenHeight then |
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234 |
k:= cScreenWidth div 400 // here 400 is minimum size of thumbnail |
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else |
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236 |
k:= cScreenHeight div 400; |
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237 |
if k = 0 then |
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k:= 1; |
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MakeScreenshot(thumbpath, k); |
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thumbnailSaved:= true; |
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241 |
end; |
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242 |
|
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procedure BeginPreRecording; |
7180 | 244 |
var format: word; |
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filename: shortstring; |
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frequency, channels: LongInt; |
7180 | 247 |
begin |
248 |
AddFileLog('BeginPreRecording'); |
|
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249 |
|
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numFrames:= 0; |
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startTime:= SDL_GetTicks(); |
7180 | 252 |
|
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RecPrefix:= FormatDateTime('YYYY-MM-DD_HH-mm-ss', Now()); |
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254 |
|
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thumbnailSaved:= false; |
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256 |
|
7180 | 257 |
Mix_QuerySpec(@frequency, @format, @channels); |
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AddFileLog('sound: frequency = ' + IntToStr(frequency) + ', format = ' + IntToStr(format) + ', channels = ' + IntToStr(channels)); |
7180 | 259 |
if format <> $8010 then |
260 |
begin |
|
261 |
// TODO: support any audio format |
|
262 |
AddFileLog('Error: Unexpected audio format ' + IntToStr(format)); |
|
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263 |
exit; |
7180 | 264 |
end; |
265 |
||
266 |
{$IOCHECKS OFF} |
|
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// create sound file |
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filename:= UserPathPrefix + '/VideoTemp/' + RecPrefix + '.sw'; |
7180 | 269 |
Assign(audioFile, filename); |
270 |
Rewrite(audioFile, 1); |
|
271 |
if IOResult <> 0 then |
|
272 |
begin |
|
273 |
AddFileLog('Error: Could not write to ' + filename); |
|
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exit; |
7180 | 275 |
end; |
276 |
||
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277 |
// create file with camera positions |
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278 |
filename:= UserPathPrefix + '/VideoTemp/' + RecPrefix + '.txtout'; |
7180 | 279 |
Assign(cameraFile, filename); |
280 |
Rewrite(cameraFile); |
|
281 |
if IOResult <> 0 then |
|
282 |
begin |
|
283 |
AddFileLog('Error: Could not write to ' + filename); |
|
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284 |
exit; |
7180 | 285 |
end; |
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286 |
|
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287 |
BlockWrite(audioFile, frequency, 4); |
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288 |
BlockWrite(audioFile, channels, 4); |
7180 | 289 |
{$IOCHECKS ON} |
290 |
||
291 |
// register callback for actual audio recording |
|
292 |
Mix_SetPostMix(@RecordPostMix, nil); |
|
293 |
||
294 |
flagPrerecording:= true; |
|
295 |
end; |
|
296 |
||
297 |
procedure StopPreRecording; |
|
298 |
begin |
|
299 |
AddFileLog('StopPreRecording'); |
|
300 |
flagPrerecording:= false; |
|
301 |
||
302 |
// call SDL_LockAudio because RecordPostMix may be executing right now |
|
303 |
SDL_LockAudio(); |
|
304 |
Close(audioFile); |
|
305 |
Close(cameraFile); |
|
306 |
Mix_SetPostMix(nil, nil); |
|
307 |
SDL_UnlockAudio(); |
|
308 |
end; |
|
309 |
||
310 |
procedure SaveCameraPosition; |
|
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311 |
var curTime: LongInt; |
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312 |
frame: TFrame; |
7180 | 313 |
begin |
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314 |
if (not thumbnailSaved) and (ScreenFade = sfNone) then |
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315 |
SaveThumbnail(); |
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|
316 |
|
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317 |
curTime:= SDL_GetTicks(); |
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318 |
while Int64(curTime - startTime)*cVideoFramerateNum > Int64(numFrames)*cVideoFramerateDen*1000 do |
7180 | 319 |
begin |
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320 |
frame.ticks:= GameTicks; |
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321 |
frame.CamX:= WorldDx; |
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322 |
frame.CamY:= WorldDy - cScreenHeight div 2; |
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|
323 |
frame.zoom:= zoom/cScreenWidth; |
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|
324 |
BlockWrite(cameraFile, frame, 1); |
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325 |
inc(numFrames); |
7180 | 326 |
end; |
327 |
end; |
|
328 |
||
329 |
procedure freeModule; |
|
330 |
begin |
|
331 |
if flagPrerecording then |
|
332 |
StopPreRecording(); |
|
333 |
end; |
|
334 |
||
335 |
end. |
|
7286 | 336 |
|
337 |
{$ENDIF} // USE_VIDEO_RECORDING |