diff options
Diffstat (limited to 'Game/Code')
| -rw-r--r-- | Game/Code/SMpeg/Uffmpeg.pas | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/Game/Code/SMpeg/Uffmpeg.pas b/Game/Code/SMpeg/Uffmpeg.pas index 753d3dd9..e72c4ed5 100644 --- a/Game/Code/SMpeg/Uffmpeg.pas +++ b/Game/Code/SMpeg/Uffmpeg.pas @@ -5,6 +5,9 @@ # based on 'An ffmpeg and SDL Tutorial' (http://www.dranger.com/ffmpeg/) #
#############################################################################}
+{$define DebugDisplay}
+
+
unit Uffmpeg;
interface
@@ -38,8 +41,6 @@ var implementation
-const DebugDisplay=False;
-
procedure Init;
begin
av_register_all;
@@ -93,12 +94,13 @@ begin end else showmessage('no matching codec found');
if(errnum >=0) then
begin
- if DebugDisplay then
+{$ifdef DebugDisplay}
showmessage('Found a matching Codec:'+#13#10#13#10+
'Width='+inttostr(VideoCodecContext^.width)+
', Height='+inttostr(VideoCodecContext^.height)+#13#10+
'Aspect: '+inttostr(VideoCodecContext^.sample_aspect_ratio.num)+'/'+inttostr(VideoCodecContext^.sample_aspect_ratio.den)+#13#10+
'Framerate: '+inttostr(VideoCodecContext^.time_base.num)+'/'+inttostr(VideoCodecContext^.time_base.den));
+{$endif}
// allocate space for decoded frame and rgb frame
AVFrame:=avcodec_alloc_frame;
AVFrameRGB:=avcodec_alloc_frame;
@@ -137,9 +139,15 @@ begin ScaledVideoWidth:=600.0*VideoAspect;
end;
VideoTimeBase:=VideoCodecContext^.time_base.num/VideoCodecContext^.time_base.den;
- if (DebugDisplay) and ((VideoAspect*VideoCodecContext^.width*VideoCodecContext^.height)>200000) then
+ // hack to get reasonable timebase for divx
+ showmessage('framerate: '+inttostr(floor(1/videotimebase))+'fps');
+ while VideoTimeBase < 0.02 do VideoTimeBase:=VideoTimeBase*10;
+{$ifdef DebugDisplay}
+ showmessage('calculated framerate: '+inttostr(floor(1/videotimebase))+'fps');
+ if ((VideoAspect*VideoCodecContext^.width*VideoCodecContext^.height)>200000) then
showmessage('you are trying to play a rather large video'+#13#10+
'be prepared to experience some timing problems');
+{$endif}
end;
end;
end;
@@ -187,7 +195,10 @@ begin 'TimeDiff: '+inttostr(floor(TimeDifference*1000)));
}
if (VideoTime <> 0) and (TimeDifference <= VideoTimeBase) then begin
- if DebugDisplay then GoldenRec.Spawn(200,15,1,16,0,-1,ColoredStar,$00ff00);
+{$ifdef DebugDisplay}
+ // frame delay debug display
+ GoldenRec.Spawn(200,15,1,16,0,-1,ColoredStar,$00ff00);
+{$endif}
{ showmessage('not getting new frame'+#13#10+
'Time: '+inttostr(floor(Time*1000))+#13#10+
'VideoTime: '+inttostr(floor(VideoTime*1000))+#13#10+
@@ -199,7 +210,10 @@ begin VideoTime:=VideoTime+VideoTimeBase;
TimeDifference:=myTime-VideoTime;
if TimeDifference >= 3*VideoTimeBase then begin // skip frames
- if DebugDisplay then GoldenRec.Spawn(200,35,1,16,0,-1,ColoredStar,$ff0000);
+{$ifdef DebugDisplay}
+ //frame drop debug display
+ GoldenRec.Spawn(200,55,1,16,0,-1,ColoredStar,$ff0000);
+{$endif}
// showmessage('skipping frames'+#13#10+
// 'TimeBase: '+inttostr(floor(VideoTimeBase*1000))+#13#10+
// 'TimeDiff: '+inttostr(floor(TimeDifference*1000))+#13#10+
@@ -223,9 +237,10 @@ begin // if we did not get an new frame, there's nothing more to do
if Framefinished=0 then Exit;
// otherwise we convert the pixeldata from YUV to RGB
- errnum:=img_convert(PAVPicture(AVFrameRGB), PIX_FMT_RGB24,
+{ errnum:=img_convert(PAVPicture(AVFrameRGB), PIX_FMT_RGB24,
PAVPicture(AVFrame), VideoCodecContext^.pix_fmt,
VideoCodecContext^.width, VideoCodecContext^.height);
+}errnum:=1;
if errnum >=0 then begin
// copy RGB pixeldata to our TextureBuffer
// (line by line)
@@ -240,6 +255,11 @@ begin glTexImage2D(GL_TEXTURE_2D, 0, 3, dataX, dataY, 0, GL_RGB, GL_UNSIGNED_BYTE, TexData);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+{$ifdef DebugDisplay}
+ //frame decode debug display
+ GoldenRec.Spawn(200,35,1,16,0,-1,ColoredStar,$ffff00);
+{$endif}
+
end;
end;
@@ -261,15 +281,17 @@ begin glDisable(GL_TEXTURE_2D);
glDisable(GL_BLEND);
- if DebugDisplay then begin
+{$ifdef DebugDisplay}
SetFontStyle (2);
SetFontItalic(False);
SetFontSize(9);
SetFontPos (5, 0);
glPrint('delaying frame');
SetFontPos (5, 20);
+ glPrint('fetching frame');
+ SetFontPos (5, 40);
glPrint('dropping frame');
- end;
+{$endif}
end;
end.
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