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camera1.backup-20181013-1354.pas
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unit Camera1;
// Based on camera_tunnel_non.c by SonienTaegi
// Copyright: GPLv2
interface
uses
classes,sysutils,uIL_Client, uOMX, VC4, threads,
retromalina, mwindows, blitter, retro;
type TCameraThread=class (TThread)
private
protected
procedure Execute; override;
public
Constructor Create(CreateSuspended : boolean);
end;
const COMPONENT_CAMERA='OMX.broadcom.camera';
const COMPONENT_RENDER='OMX.broadcom.video_render';
const cxres=1280;
cyres=720;
type PContext=^context;
context=record
pcamera:OMX_HANDLETYPE;
prender:OMX_HANDLETYPE;
iscameraready:OMX_BOOL;
nwidth,nheight,nframerate:cardinal;
pBufferCameraOut:^OMX_BUFFERHEADERTYPE;
pSrcY,pSrcU,pSrcV:^OMX_U8;
nSizeY, nSizeU, nSizeV:cardinal;
pBufferPool:array[0..15] of ^OMX_BUFFERHEADERTYPE; // OMX_BUFFERHEADERTYPE**
nBufferPoolSize,nBufferPoolIndex:cardinal;
isFilled:OMX_BOOL;
end;
var camerathread:TCameraThread;
cmw:pointer=nil;
camerawindow:TWindow=nil;
rendertestwindow:TWindow=nil;
mContext:context;
at,at1,at2,t1,t2,t3,t4:int64;
procedure camera;
implementation
var camerabufferfilled:boolean;
procedure print_log(s:string);
begin
camerawindow.println(s);
end;
constructor TCameraThread.create(CreateSuspended : boolean);
begin
FreeOnTerminate := True;
inherited Create(CreateSuspended);
end;
procedure TCameraThread.execute;
label p999;
begin
ThreadSetpriority(ThreadGetCurrent,6);
sleep(1);
setpallette(grayscalepallette,0);
if camerawindow=nil then
begin
camerawindow:=TWindow.create(480,800,'Camera log');
camerawindow.decoration.hscroll:=true;
camerawindow.decoration.vscroll:=true;
camerawindow.resizable:=true;
camerawindow.cls(0);
camerawindow.tc:=252;
camerawindow.move(1200,64,480,1100,0,0);
cmw:=camerawindow;
end
else goto p999;
if rendertestwindow=nil then
begin
rendertestwindow:=TWindow.create(cxres,cyres,'Camera render');
rendertestwindow.decoration.hscroll:=false;
rendertestwindow.decoration.vscroll:=false;
rendertestwindow.resizable:=true;
rendertestwindow.cls(0);
rendertestwindow.tc:=15;
rendertestwindow.move(800,400,cxres,cyres,0,0);
end;
camera;
repeat sleep(100) until camerawindow.needclose;
camerawindow.destroy;
camerawindow:=nil;
rendertestwindow.destroy;
rendertestwindow:=nil;
cmw:=nil;
p999:
setpallette(ataripallette,0);
end;
//------------------------------------------------------------------------------
//
// You need to define these 3 callbacks to use OMX
//
//------------------------------------------------------------------------------
// Callback: OMX Event occured
function onOMXevent(hComponent: OMX_HANDLETYPE;
pAppData:OMX_PTR;
eEvent: OMX_EVENTTYPE;
nData1: OMX_U32;
nData2: OMX_U32;
pEventData: OMX_PTR): OMX_ERRORTYPE; cdecl;
begin
result:= OMX_ErrorNone;
end;
// Callback: Camera buffer filled
function onFillCameraOut(hComponent:OMX_HANDLETYPE; pAppData: OMX_PTR;pBuffer:POMX_BUFFERHEADERTYPE): OMX_ERRORTYPE; cdecl;
begin
camerabufferfilled:=true;
result:=OMX_ErrorNone;
end;
// Callback: Render buffer empty
function onEmptyRenderIn(hComponent:OMX_HANDLETYPE; pAppData:OMX_PTR; PBuffer:POMX_BUFFERHEADERTYPE): OMX_ERRORTYPE; cdecl;
begin
result:= OMX_ErrorNone;
end;
function isState(hcomponent:POMX_HANDLETYPE; state:OMX_STATETYPE): OMX_BOOL;
var currentState: OMX_STATETYPE;
begin
if (hComponent=nil) then result:=OMX_FALSE;
OMX_GetState(hComponent,@currentState);
if currentState=state then result:=OMX_TRUE else result:=OMX_FALSE;
end;
function wait_for_state_change(state_tobe: OMX_STATETYPE; handle:OMX_HANDLETYPE): OMX_BOOL;
var isValid:OMX_BOOL=OMX_TRUE;
timeout_counter:cardinal=0;
state_current:OMX_STATETYPE;
begin
camerawindow.println('Waiting for '+inttohex(cardinal(handle),8));
isValid := OMX_FALSE;
while (timeout_counter < 5000) and (isValid=OMX_FALSE) do
begin
timeout_counter:=0;
OMX_GetState(handle, @state_current);
if (state_current <> state_tobe) then begin threadsleep(1); inc(timeout_counter); end else IsValid:=OMX_TRUE;
end;
result:=IsValid;
end;
procedure terminate;
var state:OMX_STATETYPE;
bWaitForCamera, bWaitForRender: OMX_BOOL;
begin
camerawindow.println('On terminating...');
bWaitForCamera := OMX_FALSE;
bWaitForRender := OMX_FALSE;
if(isState(mContext.pCamera, OMX_StateExecuting))=OMX_TRUE then
begin
OMX_SendCommand(mContext.pCamera, OMX_CommandStateSet, OMX_StateIdle, nil);
bWaitForCamera := OMX_TRUE;
end;
if(isState(mContext.pRender, OMX_StateExecuting))=OMX_TRUE then
begin
OMX_SendCommand(mContext.pRender, OMX_CommandStateSet, OMX_StateIdle, nil);
bWaitForRender := OMX_TRUE;
end;
if(bWaitForCamera=OMX_TRUE) then wait_for_state_change(OMX_StateIdle, mContext.pCamera);
if(bWaitForRender=OMX_TRUE) then wait_for_state_change(OMX_StateIdle, mContext.pRender);
// Idle -> Loaded
bWaitForCamera := OMX_FALSE;
bWaitForRender := OMX_FALSE;
if(isState(mContext.pCamera, OMX_StateIdle)) =OMX_TRUE then
begin
OMX_SendCommand(mContext.pCamera, OMX_CommandStateSet, OMX_StateLoaded, nil);
bWaitForCamera := OMX_TRUE;
end;
if(isState(mContext.pRender, OMX_StateIdle)) then
begin
OMX_SendCommand(mContext.pRender, OMX_CommandStateSet, OMX_StateLoaded, nil);
bWaitForRender := OMX_TRUE;
end;
//if(bWaitForCamera=OMX_TRUE) then wait_for_state_change(OMX_StateLoaded, mContext.pCamera);
//if(bWaitForRender=OMX_TRUE) then wait_for_state_change(OMX_StateLoaded, mContext.pRender);
// Loaded -> Free
if(isState(mContext.pCamera, OMX_StateLoaded))=OMX_TRUE then OMX_FreeHandle(mContext.pCamera);
if(isState(mContext.pRender, OMX_StateLoaded))=OMX_TRUE then OMX_FreeHandle(mContext.pRender);
OMX_Deinit();
print_log('Terminated. You can now close the window');
end;
procedure componentPrepare;
var err:OMX_ERRORTYPE;
portDef:OMX_PARAM_PORTDEFINITIONTYPE;
i:cardinal;
begin
// Request state of components to be IDLE.
// The command will turn the component into waiting mode.
// After allocating buffer to all enabled ports than the component will be IDLE.
// Allocate buffer to camera
//for i:=0 to 16 do removeramlimits(cardinal(mContext.pSrcY)+i*4096);
// Wait up for component being idle.
print_log('STATE : IDLE OK!');
end;
procedure camera;
label p999;
var err:OMX_ERRORTYPE;
portdef:OMX_PARAM_PORTDEFINITIONTYPE;
callbackOMX:OMX_CALLBACKTYPE;
portCapturing:OMX_CONFIG_PORTBOOLEANTYPE;
deviceNumber:OMX_PARAM_U32TYPE;
formatVideo:POMX_VIDEO_PORTDEFINITIONTYPE;
displayRegion:OMX_CONFIG_DISPLAYREGIONTYPE;
y,u,v,y2,u2,v2:cardinal;
py:POMX_U8=nil;
pu:POMX_U8=nil;
pv:POMX_U8=nil;
py2:POMX_U8=nil;
pu2:POMX_U8=nil;
pv2:POMX_U8=nil;
nOffsetU, nOffsetV, nFrameMax, nFrames:cardinal;
PBuffer: POMX_BUFFERHEADERTYPE;
i:integer;
qqq:int64;
begin
// Initialize variables
FillChar (mContext, SizeOf(mContext), 0);
mContext.nWidth := cxres;
mContext.nHeight := cyres;
mContext.nFramerate := 60;
// initialize VC4.
bcmhostinit;
print_log('VC4 initialized');
// initialize OMX
OMX_Init;
print_log('OMX initialized');
// Set 3 callbacks needed by OMX components
callbackOMX.EventHandler := @onOMXevent;
callbackOMX.EmptyBufferDone := @onEmptyRenderIn;
callbackOMX.FillBufferDone := @onFillCameraOut;
print_log('Callbacks set');
// Load the camera and the renderer
err := OMX_GetHandle(@(mContext.pCamera), COMPONENT_CAMERA, @mContext, @CallbackOMX);
if (err <> OMX_ErrorNone ) then print_log('error loading camera'+inttostr(err));
print_log('Camera loaded: '+inttohex(cardinal(mContext.pCamera),8));
err := OMX_GetHandle(@(mContext.pRender), COMPONENT_RENDER, @mContext, @CallbackOMX);
if (err <> OMX_ErrorNone ) then print_log('error loading renderer'+inttostr(err));
print_log('Renderer loaded: '+inttohex(cardinal(mContext.pRender),8));
// Disable unused camera ports - we will use #71
OMX_SendCommand(mContext.pCamera, OMX_CommandPortDisable, 70, nil);
OMX_SendCommand(mContext.pCamera, OMX_CommandPortDisable, 72, nil);
OMX_SendCommand(mContext.pCamera, OMX_CommandPortDisable, 73, nil);
print_log('Camera ports 70,72,73 disabled');
// Set camera device number
FillChar (deviceNumber, SizeOf(deviceNumber), 0);
deviceNumber.nSize := sizeof(deviceNumber);
deviceNumber.nVersion.nVersion := OMX_VERSION;
deviceNumber.nVersion.nVersionMajor := OMX_VERSION_MAJOR;
deviceNumber.nVersion.nVersionMinor := OMX_VERSION_MINOR;
deviceNumber.nVersion.nRevision := OMX_VERSION_REVISION;
deviceNumber.nVersion.nStep := OMX_VERSION_STEP;
deviceNumber.nPortIndex := OMX_ALL;
deviceNumber.nU32 := 0;
err := OMX_SetParameter(mContext.pCamera, OMX_IndexParamCameraDeviceNumber, @deviceNumber);
if err<>OMX_ErrorNone then print_log(inttostr(err)+ 'camera set number FAIL');
print_log('Camera device number set to 0');
// Set video format of #71 port and compute the camera buffer size.
//Step 1 - get default parameters
FillChar (portDef, SizeOf(portDef), 0);
portDef.nSize := sizeof(portDef);
portDef.nVersion.nVersion := OMX_VERSION;
portDef.nVersion.nVersionMajor := OMX_VERSION_MAJOR;
portDef.nVersion.nVersionMinor := OMX_VERSION_MINOR;
portDef.nVersion.nRevision := OMX_VERSION_REVISION;
portDef.nVersion.nStep := OMX_VERSION_STEP;
portDef.nPortIndex := 71;
OMX_GetParameter(mContext.pCamera, OMX_IndexParamPortDefinition, @portDef);
//Step 2 - set needed video format
formatVideo := @portDef.format.video;
formatVideo^.eColorFormat := OMX_COLOR_FormatMonochrome; // OMX_COLOR_FormatYUV420PackedPlanar;
formatVideo^.nFrameWidth := mContext.nWidth;
formatVideo^.nFrameHeight := mContext.nHeight;
formatVideo^.xFramerate := mContext.nFramerate shl 16; // Fixed point. 1
formatVideo^.nStride := formatVideo^.nFrameWidth; // Stride 0 -> Raise segment fault.
formatVideo^.nSliceHeight := mContext.nHeight;
err := OMX_SetParameter(mContext.pCamera, OMX_IndexParamPortDefinition, @portDef);
if err<>OMX_ErrorNone then print_log(inttostr(err)+ 'camera set format FAIL');
print_log('Camera video format set to '+inttostr(mContext.nWidth)+'x'+inttostr(mContext.nHeight));
//Step 3 - retrieve new parameters from the camera after setting and compute the buffers size
OMX_GetParameter(mContext.pCamera, OMX_IndexParamPortDefinition, @portDef);
formatVideo := @portDef.format.video;
mContext.nSizeY := formatVideo^.nFrameWidth * formatVideo^.nSliceHeight;
mContext.nSizeU := mContext.nSizeY div 4;
mContext.nSizeV := mContext.nSizeY div 4;
print_log('Camera buffer size Y: '+inttostr(mContext.nSizeY)+'; U: '+inttostr(mContext.nSizeU)+'; V: '+inttostr(mContext.nSizeV));
// ------------- End of video format setting -----------------------------------
// Set video format of renderer port #90
FillChar (portDef, SizeOf(portDef), 0);
portDef.nSize := sizeof(portDef);
portDef.nVersion.nVersion := OMX_VERSION;
portDef.nVersion.nVersionMajor := OMX_VERSION_MAJOR;
portDef.nVersion.nVersionMinor := OMX_VERSION_MINOR;
portDef.nVersion.nRevision := OMX_VERSION_REVISION;
portDef.nVersion.nStep := OMX_VERSION_STEP;
portDef.nPortIndex := 90;
OMX_GetParameter(mContext.pRender, OMX_IndexParamPortDefinition, @portDef);
formatVideo := @portDef.format.video;
formatVideo^.eColorFormat := OMX_COLOR_FormatYUV420PackedPlanar;
formatVideo^.eCompressionFormat := OMX_VIDEO_CodingUnused;
formatVideo^.nFrameWidth := mContext.nWidth;
formatVideo^.nFrameHeight := mContext.nHeight;
formatVideo^.nStride := mContext.nWidth;
formatVideo^.nSliceHeight := mContext.nHeight;
formatVideo^.xFramerate := mContext.nFramerate shl 16;
err := OMX_SetParameter(mContext.pRender, OMX_IndexParamPortDefinition, @portDef);
if err<>OMX_ErrorNone then print_log(inttostr(err)+ 'renderer set format failed');
print_log('Renderer video format set to '+inttostr(mContext.nWidth)+'x'+inttostr(mContext.nHeight));
// Configure rendering region
FillChar (displayRegion, SizeOf(displayRegion), 0);
displayRegion.nSize := sizeof(displayRegion);
displayRegion.nVersion.nVersion := OMX_VERSION;
displayRegion.nVersion.nVersionMajor := OMX_VERSION_MAJOR;
displayRegion.nVersion.nVersionMinor := OMX_VERSION_MINOR;
displayRegion.nVersion.nRevision := OMX_VERSION_REVISION;
displayRegion.nVersion.nStep := OMX_VERSION_STEP;
displayRegion.nPortIndex := 90;
displayRegion.dest_rect.width := mContext.nWidth div 2;
displayRegion.dest_rect.height := mContext.nHeight div 2;
displayRegion.dest_rect.x_offset := 30;
displayRegion.dest_rect.y_offset := 30;
displayRegion.set_ := OMX_DISPLAY_SET_NUM or OMX_DISPLAY_SET_FULLSCREEN or OMX_DISPLAY_SET_MODE or OMX_DISPLAY_SET_DEST_RECT;
displayRegion.mode := OMX_DISPLAY_MODE_FILL;
displayRegion.fullscreen := OMX_FALSE;
displayRegion.num := 0;
err := OMX_SetConfig(mContext.pRender, OMX_IndexConfigDisplayRegion, @displayRegion);
if err<>OMX_ErrorNone then print_log(inttostr(err)+ 'renderer set region FAIL');
print_log('Renderer display region set to '+inttostr(displayRegion.dest_rect.width)+'x'+inttostr(displayRegion.dest_rect.height ));
//------ End of renderer format setting ----------------------------------------
//------ Change the components state from loaded to idle------------------------
err := OMX_SendCommand(mContext.pCamera, OMX_CommandStateSet, OMX_StateIdle, nil);
if err<>OMX_ErrorNone then print_log(inttostr(err)+ 'camera idle request FAIL');
print_log('Camera state set to idle');
err := OMX_SendCommand(mContext.pRender, OMX_CommandStateSet, OMX_StateIdle, nil);
if err<>OMX_ErrorNone then print_log(inttostr(err)+ 'renderer idle request FAIL');
print_log('Renderer state set to idle');
//----- Allocate buffers to render
FillChar (portDef, SizeOf(portDef), 0);
portDef.nSize := sizeof(portDef);
portDef.nVersion.nVersion := OMX_VERSION;
portDef.nVersion.nVersionMajor := OMX_VERSION_MAJOR;
portDef.nVersion.nVersionMinor := OMX_VERSION_MINOR;
portDef.nVersion.nRevision := OMX_VERSION_REVISION;
portDef.nVersion.nStep := OMX_VERSION_STEP;
portDef.nPortIndex := 90;
OMX_GetParameter(mContext.pRender, OMX_IndexParamPortDefinition, @portDef);
mContext.nBufferPoolSize := portDef.nBufferCountActual;
mContext.nBufferPoolIndex := 0;
for i:=0 to mContext.nBufferPoolSize-1 do
begin
mContext.pBufferPool[i] := nil;
err := OMX_AllocateBuffer(mContext.pRender, @(mContext.pBufferPool[i]), 90, @mContext, portDef.nBufferSize);
if err<>OMX_ErrorNone then print_log(inttostr(err)+ 'allocate render buffer FAIL');
end;
print_log('Allocated '+inttostr(portDef.nBufferCountActual)+' render buffers size '+inttostr(portDef.nBufferSize));
//----- Allocate buffers to camera
FillChar (portDef, SizeOf(portDef), 0);
portDef.nSize := sizeof(portDef);
portDef.nVersion.nVersion := OMX_VERSION;
portDef.nVersion.nVersionMajor := OMX_VERSION_MAJOR;
portDef.nVersion.nVersionMinor := OMX_VERSION_MINOR;
portDef.nVersion.nRevision := OMX_VERSION_REVISION;
portDef.nVersion.nStep := OMX_VERSION_STEP;
portDef.nPortIndex := 71;
OMX_GetParameter(mContext.pCamera, OMX_IndexParamPortDefinition, @portDef);
OMX_AllocateBuffer(mContext.pCamera, @mContext.pBufferCameraOut, 71, @mContext, portDef.nBufferSize);
if err<>OMX_ErrorNone then print_log(inttostr(err)+ 'allocate camera buffer FAIL');
print_log('Allocated '+inttostr(portDef.nBufferCountActual)+' camera buffers size '+inttostr(portDef.nBufferSize));
//--- set working variables
mContext.pSrcY := mContext.pBufferCameraOut^.pBuffer;
mContext.pSrcU := pointer(cardinal(mContext.pSrcY) + mContext.nSizeY);
mContext.pSrcV := pointer(cardinal(mContext.pSrcU) + mContext.nSizeU);
print_log('Y buffer at '+inttohex(cardinal(mContext.pSrcY),8));
//------- wait until components state is idle
if wait_for_state_change(OMX_StateIdle, mContext.pRender)=OMX_FALSE then print_log('*** Failed waiting for renderer idle state')
else print_log('Renderer state is now idle');
if wait_for_state_change(OMX_StateIdle, mContext.pCamera)=OMX_FALSE then print_log('*** Failed waiting for camera idle state')
else print_log('Camera state is now idle');
//------ Change the components state from loaded to idle------------------------
err := OMX_SendCommand(mContext.pCamera, OMX_CommandStateSet, OMX_StateExecuting, nil);
if err<>OMX_ErrorNone then print_log(inttostr(err)+' Camera executing FAIL');
err := OMX_SendCommand(mContext.pRender, OMX_CommandStateSet, OMX_StateExecuting, nil);
if err<>OMX_ErrorNone then print_log(inttostr(err)+' Renderer executing FAIL');
if wait_for_state_change(OMX_StateExecuting, mContext.pRender)=OMX_FALSE then print_log('*** Failed waiting for renderer executing state')
else print_log('Renderer state is now executing');
if wait_for_state_change(OMX_StateExecuting, mContext.pCamera)=OMX_FALSE then print_log('*** Failed waiting for renderer executing state')
else print_log('Camera state is now executing');
//----------- Start capturing at port 71 --------------------------------------
while keypressed do readkey;
print_log('Capture start. Press any key to stop');
FillChar (portCapturing, SizeOf(portCapturing), 0);
portCapturing.nSize := sizeof(portCapturing);
portCapturing.nVersion.nVersion := OMX_VERSION;
portCapturing.nVersion.nVersionMajor := OMX_VERSION_MAJOR;
portCapturing.nVersion.nVersionMinor := OMX_VERSION_MINOR;
portCapturing.nVersion.nRevision := OMX_VERSION_REVISION;
portCapturing.nVersion.nStep := OMX_VERSION_STEP;
portCapturing.nPortIndex := 71;
portCapturing.bEnabled := OMX_TRUE;
OMX_SetConfig(mContext.pCamera, OMX_IndexConfigPortCapturing, @portCapturing);
pY := nil;
pU := nil;
pV := nil;
nOffsetU := mContext.nWidth * mContext.nHeight;
nOffsetV := (nOffsetU * 5) div 4;
nFrameMax:= mContext.nFramerate * 600;
nFrames := 0;
print_log('Capture will stop itself after '+inttostr(nFramemax div mContext.nFramerate)+' seconds');
// ---- Fill initial camera buffer
OMX_FillThisBuffer(mContext.pCamera, mContext.pBufferCameraOut);
// ---- Prepare addresses for fastmove
y2:=cardinal(mContext.pSrcY);
u2:=cardinal(mContext.pSrcU);
v2:=cardinal(mContext.pSrcV);
// ----- MAIN CAPTURE LOOP -----------------------------------------------------
while keypressed do readkey;
at:=0; at1:=0; at2:=0;
nframes:=0;
while(nFrames < nFrameMax) and (not keypressed) do
begin
if camerabufferfilled then
begin
t1:=gettime;
// retromachine blit test
blit8(y2,0,0,cardinal(rendertestwindow.canvas),0,0,cxres,cyres,cxres,cxres);
t1:=gettime-t1; at1+=t1;
if nframes>0 then t3:=gettime-t3 else t3:=0;
at+=t3;
t3:=gettime;
nFrames+=1;
rendertestwindow.outtextxy(4,4,inttostr(at1 div nframes),0);
rendertestwindow.outtextxy(4,34,inttostr(at2 div nframes),0);
if nframes>1 then rendertestwindow.outtextxy(4,64,inttostr(at div (nframes-1)),0);
rendertestwindow.outtextxy(4,94,inttostr(nframes),0);
camerabufferfilled:=false;
t2:=gettime;
OMX_FillThisBuffer(mContext.pCamera, mContext.pBufferCameraOut);
t2:=gettime-t2; at2+=t2;
end;
threadsleep(1);
end;
portCapturing.bEnabled := OMX_FALSE;
OMX_SetConfig(mContext.pCamera, OMX_IndexConfigPortCapturing, @portCapturing);
print_log('Capture stop.');
p999:
terminate;
end;
end.