hedgewars/uVideoRec.pas
author Wuzzy <Wuzzy2@mail.ru>
Fri, 09 Mar 2018 19:05:59 +0100
changeset 13145 5083fb0a2992
parent 12621 d972b31f8881
child 13226 4028d7f85233
permissions -rw-r--r--
A Classic Fairytale: Harden all missions against missing campaign variables in team file and assume default values This assumes the worst case in which the team file is missing all campaign variables except Progress. This has been successfully tested with all 10 missions and still generates a logical storyline. By default, the game assumes: - The cyborg's offer in mission 2 was refused - The traitor in mission 5 was killed As a consequence, missions 8 and 10 use the princessScene cut scene.
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(*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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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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 *
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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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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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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{$ELSE}
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{$IFNDEF WIN32}
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    {$linklib avwrapper}
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{$ENDIF}
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interface
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var flagPrerecording: boolean = false;
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function BeginVideoRecording: Boolean;
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function LoadNextCameraPosition(out newRealTicks, newGameTicks: LongInt): Boolean;
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procedure EncodeFrame;
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procedure StopVideoRecording;
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procedure BeginPreRecording;
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procedure StopPreRecording;
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procedure SaveCameraPosition;
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procedure initModule;
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procedure freeModule;
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implementation
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uses uVariables, GLunit, SDLh, SysUtils, uUtils, uIO, uMisc, uTypes, uDebug;
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type TAddFileLogRaw = procedure (s: pchar); cdecl;
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const AvwrapperLibName = 'libavwrapper';
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function AVWrapper_Init(
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              AddLog: TAddFileLogRaw;
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              filename, desc, soundFile, format, vcodec, acodec: PChar;
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              width, height, framerateNum, framerateDen, vquality: LongInt): LongInt; cdecl; external AvwrapperLibName;
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function AVWrapper_Close: LongInt; cdecl; external AvwrapperLibName;
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function AVWrapper_WriteFrame(rgb: PByte): LongInt; cdecl; external AvwrapperLibName;
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type TFrame = record
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                  realTicks: LongWord;
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                  gameTicks: LongWord;
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                  CamX, CamY: LongInt;
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                  zoom: single;
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              end;
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var 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, curTime, progress, maxProgress: LongWord;
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    soundFilePath: shortstring;
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    thumbnailSaved : Boolean;
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function BeginVideoRecording: Boolean;
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var filename, desc: shortstring;
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begin
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    AddFileLog('BeginVideoRecording');
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{$IOCHECKS OFF}
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    // open file with prerecorded camera positions
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    filename:= UserPathPrefix + '/VideoTemp/' + RecPrefix + '.txtin';
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    Assign(cameraFile, filename);
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    Reset(cameraFile);
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    maxProgress:= FileSize(cameraFile);
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    if IOResult <> 0 then
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    begin
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        AddFileLog('Error: Could not read from ' + filename);
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        exit(false);
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    end;
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{$IOCHECKS ON}
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    // store some description in output file
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    desc:= '';
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    if UserNick <> '' then
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        desc:= desc + 'Player: ' + UserNick + #10;
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    if recordFileName <> '' then
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        desc:= desc + 'Record: ' + recordFileName + #10;
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    if cMapName <> '' then
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        desc:= desc + 'Map: ' + cMapName + #10;
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    if Theme <> '' then
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        desc:= desc + 'Theme: ' + Theme + #10;
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    desc:= desc + 'prefix[' + RecPrefix + ']prefix';
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    filename:= UserPathPrefix + '/VideoTemp/' + RecPrefix;
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    soundFilePath:= UserPathPrefix + '/VideoTemp/' + RecPrefix + '.sw';
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    if checkFails(AVWrapper_Init(@AddFileLogRaw
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        , PChar(ansistring(filename))
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        , PChar(ansistring(desc))
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        , PChar(ansistring(soundFilePath))
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        , PChar(ansistring(cAVFormat))
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        , PChar(ansistring(cVideoCodec))
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        , PChar(ansistring(cAudioCodec))
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        , cScreenWidth, cScreenHeight, cVideoFramerateNum, cVideoFramerateDen, cVideoQuality) >= 0,
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        'AVWrapper_Init failed',
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        true) then exit(false);
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    numPixels:= cScreenWidth*cScreenHeight;
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    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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    end;
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    curTime:= 0;
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    numFrames:= 0;
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    progress:= 0;
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    BeginVideoRecording:= true;
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end;
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procedure StopVideoRecording;
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begin
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    AddFileLog('StopVideoRecording');
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    FreeMem(RGB_Buffer, 4*numPixels);
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    Close(cameraFile);
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    if AVWrapper_Close() < 0 then
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        halt(-1);
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    Erase(cameraFile);
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    DeleteFile(soundFilePath);
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    SendIPC(_S'v'); // inform frontend that we finished
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end;
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procedure EncodeFrame;
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var s: shortstring;
7180
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begin
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   152
    // read pixels from OpenGL
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    glReadPixels(0, 0, cScreenWidth, cScreenHeight, GL_RGBA, GL_UNSIGNED_BYTE, RGB_Buffer);
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   154
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   155
    if AVWrapper_WriteFrame(RGB_Buffer) < 0 then
9925
113e61a8cadc Fixed avwrapper exit calls, fixing issue 752
Gianfranco Costamagna <costamagnagianfranco@yahoo.it>
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   156
        halt(-1);
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   158
    // inform frontend that we have encoded new frame
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   159
    s[0]:= #3;
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   160
    s[1]:= 'p'; // p for progress
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   161
    SDLNet_Write16(progress*10000 div maxProgress, @s[2]);
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   162
    SendIPC(s);
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   163
    inc(numFrames);
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   164
end;
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   165
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unc0rr
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   166
function LoadNextCameraPosition(out newRealTicks, newGameTicks: LongInt): Boolean;
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   167
var frame: TFrame = (realTicks: 0; gameTicks: 0; CamX: 0; CamY: 0; zoom: 0);
7180
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   168
begin
7376
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   169
    // we need to skip or duplicate frames to match target framerate
7379
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   170
    while Int64(curTime)*cVideoFramerateNum <= Int64(numFrames)*cVideoFramerateDen*1000 do
7376
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   171
    begin
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   172
    {$IOCHECKS OFF}
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   173
        if eof(cameraFile) then
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   174
            exit(false);
7376
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   175
        BlockRead(cameraFile, frame, 1);
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   176
    {$IOCHECKS ON}
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   177
        curTime:= frame.realTicks;
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   178
        WorldDx:= frame.CamX;
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   179
        WorldDy:= frame.CamY + cScreenHeight div 2;
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   180
        zoom:= frame.zoom*cScreenWidth;
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   181
        ZoomValue:= zoom;
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   182
        inc(progress);
7392
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   183
        newRealTicks:= frame.realTicks;
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   184
        newGameTicks:= frame.gameTicks;
7376
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   185
    end;
7392
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   186
    LoadNextCameraPosition:= true;
7180
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   187
end;
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   188
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baa69bd025d9 1. Implement new page in frontend with options for video recording.
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   189
// Callback which records sound.
baa69bd025d9 1. Implement new page in frontend with options for video recording.
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   190
// This procedure may be called from different thread.
7180
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   191
procedure RecordPostMix(udata: pointer; stream: PByte; len: LongInt); cdecl;
53ffc8853008 here it is
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   192
begin
7235
baa69bd025d9 1. Implement new page in frontend with options for video recording.
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   193
    udata:= udata; // avoid warning
7180
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   194
{$IOCHECKS OFF}
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   195
    BlockWrite(audioFile, stream^, len);
53ffc8853008 here it is
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   196
{$IOCHECKS ON}
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   197
end;
53ffc8853008 here it is
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   198
7306
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   199
procedure SaveThumbnail;
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   200
var thumbpath: shortstring;
3cff5c769509 Here they come - thumbnails.
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   201
    k: LongInt;
3cff5c769509 Here they come - thumbnails.
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   202
begin
3cff5c769509 Here they come - thumbnails.
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   203
    thumbpath:= '/VideoTemp/' + RecPrefix;
3cff5c769509 Here they come - thumbnails.
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   204
    AddFileLog('Saving thumbnail ' + thumbpath);
7386
e82a076df09b Fix bug with isInLag picture displayed at end of some videos.
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parents: 7379
diff changeset
   205
    k:= max(max(cScreenWidth, cScreenHeight) div 400, 1); // here 400 is minimum size of thumbnail
10633
2f062fac5791 Add that "make screenshots of Land/LandPixels" thing for map creators
nemo
parents: 10309
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   206
    MakeScreenshot(thumbpath, k, 0);
7306
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   207
    thumbnailSaved:= true;
3cff5c769509 Here they come - thumbnails.
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   208
end;
3cff5c769509 Here they come - thumbnails.
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diff changeset
   209
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   210
// copy file (free pascal doesn't have copy file function)
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   211
procedure CopyFile(src, dest: shortstring);
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   212
var inF, outF: file;
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   213
    buffer: array[0..1023] of byte;
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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   214
    result: LongInt;
8370
0c79946e96f8 Fix tons of warnings
martin_bede
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diff changeset
   215
    i: integer;
7392
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
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   216
begin
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   217
{$IOCHECKS OFF}
8370
0c79946e96f8 Fix tons of warnings
martin_bede
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   218
    result:= 0; // avoid compiler hint and warning
0c79946e96f8 Fix tons of warnings
martin_bede
parents: 8279
diff changeset
   219
    for i:= 0 to 1023 do
0c79946e96f8 Fix tons of warnings
martin_bede
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   220
        buffer[i]:= 0;
7392
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   221
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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   222
    Assign(inF, src);
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   223
    Reset(inF, 1);
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diff changeset
   224
    if IOResult <> 0 then
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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   225
    begin
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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   226
        AddFileLog('Error: Could not read from ' + src);
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   227
        exit;
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diff changeset
   228
    end;
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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diff changeset
   229
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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   230
    Assign(outF, dest);
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   231
    Rewrite(outF, 1);
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diff changeset
   232
    if IOResult <> 0 then
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   233
    begin
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   234
        AddFileLog('Error: Could not write to ' + dest);
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   235
        exit;
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   236
    end;
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   237
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   238
    repeat
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   239
        BlockRead(inF, buffer, 1024, result);
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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diff changeset
   240
        BlockWrite(outF, buffer, result);
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   241
    until result < 1024;
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   242
{$IOCHECKS ON}
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   243
end;
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   244
7198
5debd5fe526e 1. Add IFDEFs for video recording
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diff changeset
   245
procedure BeginPreRecording;
7180
53ffc8853008 here it is
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parents:
diff changeset
   246
var format: word;
7306
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parents: 7286
diff changeset
   247
    filename: shortstring;
7280
fd707afbc3a2 pagevideos is now much better that before:
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parents: 7235
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   248
    frequency, channels: LongInt;
7180
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parents:
diff changeset
   249
begin
53ffc8853008 here it is
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parents:
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   250
    AddFileLog('BeginPreRecording');
7235
baa69bd025d9 1. Implement new page in frontend with options for video recording.
Stepan777 <stepik-777@mail.ru>
parents: 7198
diff changeset
   251
7369
46921fbe76d3 Move SDL_GetTicks() to another place, maybe this will fix sound desync.
Stepan777 <stepik-777@mail.ru>
parents: 7363
diff changeset
   252
    thumbnailSaved:= false;
7386
e82a076df09b Fix bug with isInLag picture displayed at end of some videos.
Stepan777 <stepik-777@mail.ru>
parents: 7379
diff changeset
   253
    RecPrefix:= 'hw-' + FormatDateTime('YYYY-MM-DD_HH-mm-ss-z', Now());
7306
3cff5c769509 Here they come - thumbnails.
Stepan777 <stepik-777@mail.ru>
parents: 7286
diff changeset
   254
7392
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   255
    // If this video is recorded from demo executed directly (without frontend)
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
Stepan777 <stepik-777@mail.ru>
parents: 7386
diff changeset
   256
    // then we need to copy demo so that frontend will be able to find it later.
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   257
    if recordFileName <> '' then
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   258
    begin
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   259
        if GameType <> gmtDemo then // this is save and game demo is not recording, abort
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   260
            exit;
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   261
        CopyFile(recordFileName, UserPathPrefix + '/VideoTemp/' + RecPrefix + '.hwd');
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
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parents: 7386
diff changeset
   262
    end;
bc3306c59a08 Correctly distinguish between game and real ticks while recording video,
Stepan777 <stepik-777@mail.ru>
parents: 7386
diff changeset
   263
7180
53ffc8853008 here it is
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parents:
diff changeset
   264
    Mix_QuerySpec(@frequency, @format, @channels);
7280
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   265
    AddFileLog('sound: frequency = ' + IntToStr(frequency) + ', format = ' + IntToStr(format) + ', channels = ' + IntToStr(channels));
7180
53ffc8853008 here it is
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parents:
diff changeset
   266
    if format <> $8010 then
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   267
    begin
53ffc8853008 here it is
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parents:
diff changeset
   268
        // TODO: support any audio format
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   269
        AddFileLog('Error: Unexpected audio format ' + IntToStr(format));
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   270
        exit;
7180
53ffc8853008 here it is
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parents:
diff changeset
   271
    end;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   272
53ffc8853008 here it is
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parents:
diff changeset
   273
{$IOCHECKS OFF}
7235
baa69bd025d9 1. Implement new page in frontend with options for video recording.
Stepan777 <stepik-777@mail.ru>
parents: 7198
diff changeset
   274
    // create sound file
7306
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parents: 7286
diff changeset
   275
    filename:= UserPathPrefix + '/VideoTemp/' + RecPrefix + '.sw';
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   276
    Assign(audioFile, filename);
53ffc8853008 here it is
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parents:
diff changeset
   277
    Rewrite(audioFile, 1);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   278
    if IOResult <> 0 then
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   279
    begin
53ffc8853008 here it is
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parents:
diff changeset
   280
        AddFileLog('Error: Could not write to ' + filename);
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   281
        exit;
7180
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parents:
diff changeset
   282
    end;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   283
7235
baa69bd025d9 1. Implement new page in frontend with options for video recording.
Stepan777 <stepik-777@mail.ru>
parents: 7198
diff changeset
   284
    // create file with camera positions
7306
3cff5c769509 Here they come - thumbnails.
Stepan777 <stepik-777@mail.ru>
parents: 7286
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    filename:= UserPathPrefix + '/VideoTemp/' + RecPrefix + '.txtout';
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    Assign(cameraFile, filename);
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    Rewrite(cameraFile);
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    if IOResult <> 0 then
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    begin
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        AddFileLog('Error: Could not write to ' + filename);
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        exit;
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    end;
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    // save audio parameters in sound file
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    BlockWrite(audioFile, frequency, 4);
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    BlockWrite(audioFile, channels, 4);
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{$IOCHECKS ON}
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    // register callback for actual audio recording
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    Mix_SetPostMix(@RecordPostMix, nil);
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    startTime:= SDL_GetTicks();
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    flagPrerecording:= true;
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end;
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procedure StopPreRecording;
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begin
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    AddFileLog('StopPreRecording');
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    flagPrerecording:= false;
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    // call SDL_LockAudio because RecordPostMix may be executing right now
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    SDL_LockAudio();
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    Close(audioFile);
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    Close(cameraFile);
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    Mix_SetPostMix(nil, nil);
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    SDL_UnlockAudio();
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    if not thumbnailSaved then
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        SaveThumbnail();
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end;
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procedure SaveCameraPosition;
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var frame: TFrame;
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begin
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    if (not thumbnailSaved) and (ScreenFade = sfNone) then
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        SaveThumbnail();
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    frame.realTicks:= SDL_GetTicks() - startTime;
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    frame.gameTicks:= GameTicks;
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    frame.CamX:= WorldDx;
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    frame.CamY:= WorldDy - cScreenHeight div 2;
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    frame.zoom:= zoom/cScreenWidth;
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    BlockWrite(cameraFile, frame, 1);
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end;
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procedure initModule;
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begin
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    // we need to make sure these variables are initialized before the main loop
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    // or the wrapper will keep the default values of preinit
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    cScreenWidth:= max(cWindowedWidth, 640);
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    cScreenHeight:= max(cWindowedHeight, 480);
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end;
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procedure freeModule;
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begin
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    if flagPrerecording then
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        StopPreRecording();
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end;
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end.
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{$ENDIF} // USE_VIDEO_RECORDING