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windows-nt/Source/XPSP1/NT/multimedia/media/avi/avifile/aviview/aviview.c

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2020-09-26 03:20:57 -05:00
#include <windows.h>
#include <windowsx.h>
#include <win32.h>
#include <commdlg.h>
#include <vfw.h>
#define CLIPSTUFF
#ifdef CLIPSTUFF
#include <vfw.h>
#endif
#include <msacm.h>
#define TEST_FINDSAMPLE
#ifndef streamtypeTEXT
#pragma message("streamtypeTEXT is not defined in AVIFMT.H")
#define streamtypeTEXT mmioFOURCC('t', 'x', 't', 's')
#endif
#include <memory.h>
#include "aviview.h"
#include "audplay.h"
#define GlobalSizePtr(lp) GlobalSize(GlobalPtrHandle(lp))
#ifndef WIN32
extern LONG FAR PASCAL muldiv32(LONG, LONG, LONG);
#endif
extern BOOL RegisterObjects(void);
extern void RevokeObjects(void);
TCHAR gachFilter[512] = TEXT("");
#define FIXCC(fcc) if (fcc == 0) fcc = mmioFOURCC('N', 'o', 'n', 'e'); \
if (fcc == BI_RLE8) fcc = mmioFOURCC('R', 'l', 'e', '8');
/*----------------------------------------------------------------------------*\
\*----------------------------------------------------------------------------*/
typedef LONG (FAR PASCAL *LPWNDPROC)(HWND, UINT, WPARAM, LPARAM); // pointer to a window procedure
/*----------------------------------------------------------------------------*\
\*----------------------------------------------------------------------------*/
static TCHAR gszAppName[]=TEXT("AVIView");
static HANDLE ghInstApp;
static HWND ghwndApp;
static HACCEL ghAccel;
#define SCROLLRANGE 10000
#define MAXNUMSTREAMS 50
int giCurrentStream; // current stream;
PAVIFILE gpfile; // the current file
int gaiStreamTop[MAXNUMSTREAMS];
PAVISTREAM gapavi[MAXNUMSTREAMS]; // the current streams
PGETFRAME gapgf[MAXNUMSTREAMS]; // data for decompressing
// video
HDRAWDIB ghdd[MAXNUMSTREAMS]; // drawdib handles
HIC ghic[MAXNUMSTREAMS]; // experimental: installable
// draw handlers for non-video
// streams
int gcpavi; // # of streams
BOOL gfPlaying = FALSE; // Are we playing right now?
LONG glPlayStartTime; // When did we start playing?
LONG glPlayStartPos; // From what position?
PAVISTREAM gpaviAudio; // 1st audio stream found
PAVISTREAM gpaviVideo; // 1st video stream found
#define gfVideoFound (gpaviVideo != NULL)
#define gfAudioFound (gpaviAudio != NULL)
LONG timeStart; // cached start, end, length
LONG timeEnd;
LONG timeLength;
LONG timehscroll; // how much arrows scroll HORZ bar
LONG vertSBLen;
LONG vertHeight;
DWORD gdwMicroSecPerPixel = 1000L; // !!! x-stretch
TCHAR gachFileName[MAX_PATH] = TEXT("");
TCHAR gachSaveFileName[MAX_PATH] = TEXT("");
UINT gwZoom = 2;
AVICOMPRESSOPTIONS gaAVIOptions[MAXNUMSTREAMS];
LPAVICOMPRESSOPTIONS galpAVIOptions[MAXNUMSTREAMS];
HFONT hfontApp;
TEXTMETRIC tm;
// !!! constants for painting
#define VSPACE 8 // no one will ever know what this means :-(
#define HSPACE 4 // space between frames
#define TSPACE (tm.tmHeight) // space for text area about each stream
#define AUDIOVSPACE 64 // height of an audio stream
#define FRAME_BORDER 2
void SaveSmall(PAVISTREAM ps, LPTSTR lpFilename);
/*----------------------------------------------------------------------------*\
\*----------------------------------------------------------------------------*/
#define GetScrollTime(hwnd) \
(timeStart + muldiv32(GetScrollPos(hwnd, SB_HORZ), timeLength, SCROLLRANGE))
#define SetScrollTime(hwnd, time) SetScrollPos(hwnd, SB_HORZ, \
(int)muldiv32((time) - timeStart, SCROLLRANGE, timeLength), TRUE)
/*----------------------------------------------------------------------------*\
\*----------------------------------------------------------------------------*/
LONG FAR PASCAL _export AppWndProc (HWND hwnd, unsigned uiMessage, WPARAM wParam, LPARAM lParam);
int ErrMsg (LPTSTR sz,...);
BOOL fDialog(int id,HWND hwnd,FARPROC fpfn);
LONG NEAR PASCAL AppCommand(HWND hwnd, unsigned msg, WPARAM wParam, LPARAM lParam);
/*----------------------------------------------------------------------------*\
\*----------------------------------------------------------------------------*/
HCURSOR hcurSave;
int fWait = 0;
void StartWait()
{
if (fWait++ == 0)
{
SetCursor(LoadCursor(NULL,IDC_WAIT));
}
}
void EndWait()
{
if (--fWait == 0)
{
SetCursor(LoadCursor(NULL,IDC_ARROW));
InvalidateRect(ghwndApp, NULL, TRUE);
}
}
BOOL WinYield()
{
MSG msg;
BOOL fAbort=FALSE;
while(fWait > 0 && PeekMessage(&msg,NULL,0,0,PM_REMOVE))
{
if (msg.message == WM_KEYDOWN && msg.wParam == VK_ESCAPE)
fAbort = TRUE;
if (msg.message == WM_SYSCOMMAND && (msg.wParam & 0xFFF0) == SC_CLOSE)
fAbort = TRUE;
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return fAbort;
}
/*----------------------------------------------------------------------------*\
\*----------------------------------------------------------------------------*/
//
// When we load a file or zoom changes, we re-set the scrollbars
//
void FixScrollbars(HWND hwnd)
{
AVISTREAMINFO avis;
LONG r, lHeight = 0;
UINT w;
int i;
RECT rc;
//
// Walk through all streams and determine how many pixels it will take to
// draw it.
//
for (i = 0; i < gcpavi; i++) {
AVIStreamInfo(gapavi[i], &avis, sizeof(avis));
if (avis.fccType == streamtypeVIDEO) {
//
// Set the horizontal scrollbar scale to show every frame
// of the first video stream exactly once
//
if (gapavi[i] == gpaviVideo) {
w = (avis.rcFrame.right - avis.rcFrame.left) * gwZoom / 4 +
HSPACE;
r = (LONG)(avis.dwRate / avis.dwScale);
gdwMicroSecPerPixel = muldiv32(1000000, 1, w * r);
timehscroll = 1000 / r; // msec per frame
}
lHeight += TSPACE + TSPACE / 2 + TSPACE +
(avis.rcFrame.bottom - avis.rcFrame.top) * gwZoom / 4;
} else if (avis.fccType == streamtypeAUDIO) {
lHeight += TSPACE + AUDIOVSPACE * gwZoom / 4;
} else if (avis.fccType == streamtypeTEXT) {
lHeight += TSPACE + TSPACE;
ghic[i] = ICDrawOpen(avis.fccType, avis.fccHandler, NULL);
}
//
// Every stream has this much space
//
lHeight += TSPACE + TSPACE + TSPACE + VSPACE;
}
//
// Set vertical scrollbar for scrolling the visible area
//
GetClientRect(hwnd, &rc);
vertHeight = lHeight; // total height in pixels of entire display
//
// We won't fit in the window... need scrollbars
//
if (lHeight > rc.bottom) {
vertSBLen = lHeight - rc.bottom;
SetScrollRange(hwnd, SB_VERT, 0, (int)vertSBLen, TRUE);
SetScrollPos(hwnd, SB_VERT, 0, TRUE);
//
// We will fit in the window! No scrollbars necessary
//
} else {
vertSBLen = 0;
SetScrollRange(hwnd, SB_VERT, 0, 0, TRUE);
}
}
//
// Initialize the streams of a loaded file -- the compression options, the
// DrawDIB handles, and the scroll bars
//
void InitStreams(HWND hwnd)
{
AVISTREAMINFO avis;
LONG lTemp;
int i;
//
// Start with bogus times
//
timeStart = 0x7FFFFFFF;
timeEnd = 0;
//
// Walk through and init all streams loaded
//
for (i = 0; i < gcpavi; i++) {
AVIStreamInfo(gapavi[i], &avis, sizeof(avis));
//
// Save and SaveOptions code takes a pointer to our compression opts
//
galpAVIOptions[i] = &gaAVIOptions[i];
//
// clear options structure to zeroes
//
_fmemset(galpAVIOptions[i], 0, sizeof(AVICOMPRESSOPTIONS));
//
// Initialize the compression options to some default stuff
// !!! Pick something better
//
galpAVIOptions[i]->fccType = avis.fccType;
switch(avis.fccType) {
case streamtypeVIDEO:
galpAVIOptions[i]->dwFlags = AVICOMPRESSF_VALID |
AVICOMPRESSF_KEYFRAMES | AVICOMPRESSF_DATARATE;
galpAVIOptions[i]->fccHandler = 0;
galpAVIOptions[i]->dwQuality = (DWORD)ICQUALITY_DEFAULT;
galpAVIOptions[i]->dwKeyFrameEvery = 7; // !!! ask compressor?
galpAVIOptions[i]->dwBytesPerSecond = 60000;
break;
case streamtypeAUDIO:
galpAVIOptions[i]->dwFlags |= AVICOMPRESSF_VALID;
galpAVIOptions[i]->dwInterleaveEvery = 5;
acmMetrics(NULL,
ACM_METRIC_MAX_SIZE_FORMAT,
(LPVOID) &galpAVIOptions[i]->cbFormat);
galpAVIOptions[i]->lpFormat =
GlobalAllocPtr(GHND, galpAVIOptions[i]->cbFormat);
lTemp = galpAVIOptions[i]->cbFormat;
// Use current format as default format
AVIStreamReadFormat(gapavi[i], 0,
galpAVIOptions[i]->lpFormat,
&lTemp);
break;
default:
break;
}
//
// We're finding the earliest and latest start and end points for
// our scrollbar.
//
timeStart = min(timeStart, AVIStreamStartTime(gapavi[i]));
timeEnd = max(timeEnd, AVIStreamEndTime(gapavi[i]));
//
// Initialize video streams for getting decompressed frames to display
//
if (avis.fccType == streamtypeVIDEO) {
#if 1
gapgf[i] = AVIStreamGetFrameOpen(gapavi[i], NULL);
#else
// Alternate code for testing AVIStreamGetFrameOpen
BITMAPINFOHEADER bih;
bih.biSize = sizeof(bih);
bih.biClrUsed = 256;
bih.biBitCount = 8;
bih.biPlanes = 1;
bih.biWidth = 0;
bih.biHeight = 0;
bih.biCompression = BI_RGB;
bih.biSizeImage = 0;
bih.biClrImportant = 0;
gapgf[i] = AVIStreamGetFrameOpen(gapavi[i], &bih);
#endif
if (gapgf[i] == NULL)
continue;
ghdd[i] = DrawDibOpen();
// !!! DrawDibBegin?
if (gpaviVideo == NULL) {
//
// Remember the first video stream --- treat it specially
//
gpaviVideo = gapavi[i];
}
} else if (avis.fccType == streamtypeAUDIO) {
//
// Remember the first audio stream --- treat it specially
//
if (gpaviAudio == NULL)
gpaviAudio = gapavi[i];
}
}
timeLength = timeEnd - timeStart;
SetScrollRange(hwnd, SB_HORZ, 0, SCROLLRANGE, TRUE);
SetScrollTime(hwnd, timeStart);
FixScrollbars(hwnd);
}
//
// Update the window title to reflect what's loaded
//
void FixWindowTitle(HWND hwnd)
{
TCHAR ach[80];
wsprintf(ach, TEXT("%s %s"),
(LPTSTR)gszAppName,
(LPTSTR)gachFileName);
SetWindowText(hwnd, ach);
InvalidateRect(hwnd, NULL, TRUE);
}
void FreeDrawStuff(HWND hwnd)
{
int i;
aviaudioStop();
for (i = 0; i < gcpavi; i++) {
if (gapgf[i]) {
AVIStreamGetFrameClose(gapgf[i]);
gapgf[i] = NULL;
}
if (ghdd[i]) {
DrawDibClose(ghdd[i]);
ghdd[i] = 0;
}
if (ghic[i]) {
ICClose(ghic[i]);
ghic[i] = 0;
}
}
SetScrollRange(hwnd, SB_HORZ, 0, 0, TRUE);
gpaviVideo = gpaviAudio = NULL;
}
void FreeAvi(HWND hwnd)
{
int i;
FreeDrawStuff(hwnd);
for (i = 0; i < gcpavi; i++) {
AVIStreamClose(gapavi[i]);
if (galpAVIOptions[i]->lpFormat) {
GlobalFreePtr(galpAVIOptions[i]->lpFormat);
}
}
if (gpfile)
AVIFileClose(gpfile);
gpfile = NULL;
gcpavi = 0;
giCurrentStream = 0;
}
void InitBall(HWND hwnd)
{
PAVISTREAM FAR PASCAL NewBall(void);
FreeAvi(hwnd);
gapavi[0] = NewBall();
if (gapavi[0])
gcpavi = 1;
lstrcpy(gachFileName, TEXT("BALL"));
InitStreams(hwnd);
FixWindowTitle(hwnd);
}
void InsertAVIFile(PAVIFILE pfile, HWND hwnd, LPTSTR lpszFile)
{
int i;
for (i = gcpavi; i < MAXNUMSTREAMS; i++) {
gapavi[i] = NULL;
if (AVIFileGetStream(pfile, &gapavi[i], 0L, i - gcpavi) != AVIERR_OK)
break;
if (gapavi[i] == NULL)
break;
}
if (gcpavi == i)
{
ErrMsg(TEXT("Unable to open %s"), lpszFile);
if (pfile)
AVIFileClose(pfile);
goto exit;
}
gcpavi = i;
if (gpfile) {
AVIFileClose(pfile);
} else
gpfile = pfile;
exit:
InitStreams(hwnd);
FixWindowTitle(hwnd);
}
void InitAvi(HWND hwnd, LPTSTR szFile, UINT wMenu)
{
HRESULT hr;
PAVIFILE pfile;
hr = AVIFileOpen(&pfile, szFile, OF_SHARE_DENY_WRITE, 0L);
if (hr != 0)
{
ErrMsg(TEXT("Unable to open %s"), szFile);
return;
}
if (wMenu == MENU_OPEN)
FreeAvi(hwnd);
else
FreeDrawStuff(hwnd);
InsertAVIFile(pfile, hwnd, szFile);
}
/*----------------------------------------------------------------------------*\
| AppInit( hInst, hPrev) |
| |
| Description: |
| This is called when the application is first loaded into |
| memory. It performs all initialization that doesn't need to be done |
| once per instance. |
| |
| Arguments: |
| hInstance instance handle of current instance |
| hPrev instance handle of previous instance |
| |
| Returns: |
| TRUE if successful, FALSE if not |
| |
\*----------------------------------------------------------------------------*/
BOOL AppInit(HINSTANCE hInst, HINSTANCE hPrev, int sw,LPSTR szCmdLine)
{
WNDCLASS cls;
int dx,dy;
/* Save instance handle for DialogBoxs */
ghInstApp = hInst;
ghAccel = LoadAccelerators(hInst, MAKEINTATOM(ID_APP));
if (szCmdLine && szCmdLine[0]) {
#ifdef UNICODE
// convert to unicode
lstrcpy(gachFileName, GetCommandLine());
#else
lstrcpy(gachFileName, szCmdLine);
#endif
}
if (!hPrev) {
/*
* Register a class for the main application window
*/
cls.hCursor = LoadCursor(NULL,IDC_ARROW);
cls.hIcon = LoadIcon(hInst,MAKEINTATOM(ID_APP));
cls.lpszMenuName = MAKEINTATOM(ID_APP);
cls.lpszClassName = MAKEINTATOM(ID_APP);
cls.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
cls.hInstance = hInst;
cls.style = CS_BYTEALIGNCLIENT | CS_VREDRAW | CS_HREDRAW | CS_DBLCLKS;
cls.lpfnWndProc = (LPWNDPROC)AppWndProc;
cls.cbWndExtra = 0;
cls.cbClsExtra = 0;
if (!RegisterClass(&cls))
return FALSE;
}
AVIStreamInit();
RegisterObjects();
{HDC hdc;
hfontApp = GetStockObject(ANSI_VAR_FONT);
hdc = GetDC(NULL);
SelectObject(hdc, hfontApp);
GetTextMetrics(hdc, &tm);
ReleaseDC(NULL, hdc);
}
dx = GetSystemMetrics (SM_CXSCREEN);
dy = GetSystemMetrics (SM_CYSCREEN);
ghwndApp =
CreateWindowEx(
#ifdef BIDI
WS_EX_BIDI_SCROLL | WS_EX_BIDI_MENU |WS_EX_BIDI_NOICON,
#else
0,
#endif
MAKEINTATOM(ID_APP), // Class name
gszAppName, // Caption
WS_OVERLAPPEDWINDOW, // Style bits
CW_USEDEFAULT, 0, // Position
320,300, // Size
(HWND)NULL, // Parent window (no parent)
(HMENU)NULL, // use class menu
(HANDLE)hInst, // handle to window instance
(LPSTR)NULL // no params to pass on
);
ShowWindow(ghwndApp,sw);
return TRUE;
}
/*----------------------------------------------------------------------------*\
| WinMain( hInst, hPrev, lpszCmdLine, cmdShow ) |
| |
| Description: |
| The main procedure for the App. After initializing, it just goes |
| into a message-processing loop until it gets a WM_QUIT message |
| (meaning the app was closed). |
| |
| Arguments: |
| hInst instance handle of this instance of the app |
| hPrev instance handle of previous instance, NULL if first |
| szCmdLine ->null-terminated command line |
| cmdShow specifies how the window is initially displayed |
| |
| Returns: |
| The exit code as specified in the WM_QUIT message. |
| |
\*----------------------------------------------------------------------------*/
int PASCAL WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
{
MSG msg;
/* Call initialization procedure */
if (!AppInit(hInst,hPrev,sw,szCmdLine))
return FALSE;
/*
* Polling messages from event queue
*/
for (;;)
{
while (PeekMessage(&msg, NULL, 0, 0,PM_REMOVE))
{
if (msg.message == WM_QUIT)
return msg.wParam;
if (TranslateAccelerator(ghwndApp, ghAccel, &msg))
continue;
TranslateMessage(&msg);
DispatchMessage(&msg);
}
//
// If we have no messages to dispatch, we do our background task...
// If we're playing a file, we set the scroll bar to show the video
// frames corresponding with the current playing audio sample
//
if (gfPlaying) {
LONG l;
//
// Use the audio clock to tell how long we've been playing. To
// maintain sync, it's important we use this clock.
//
l = aviaudioTime(); // returns -1 if no audio playing
//
// If we can't use the audio clock to tell us how long we've been
// playing, calculate it ourself
//
if (l == -1)
l = timeGetTime() - glPlayStartTime + glPlayStartPos;
if (l != GetScrollTime(ghwndApp)) {
if (l < timeStart) // make sure number isn't out of bounds
l = timeStart;
if (l > timeEnd) // looks like we're all done!
gfPlaying = FALSE;
SetScrollTime(ghwndApp, l);
InvalidateRect(ghwndApp, NULL, FALSE);
UpdateWindow(ghwndApp);
continue;
}
}
WaitMessage();
}
return msg.wParam;
}
typedef BYTE _huge * HPBYTE;
typedef int _huge * HPINT;
void PaintAudio(HDC hdc, PRECT prc, PAVISTREAM pavi, LONG lStart, LONG lLen)
{
PCMWAVEFORMAT wf;
int i;
int x,y;
int w,h;
BYTE b;
HBRUSH hbr;
RECT rc = *prc;
LONG lBytes;
LONG l, lLenOrig = lLen;
LONG lWaveBeginTime = AVIStreamStartTime(pavi);
LONG lWaveEndTime = AVIStreamEndTime(pavi);
static LPVOID lpAudio = NULL;
// We've been told to draw some times that don't exist
if (lStart < lWaveBeginTime) {
lLen -= lWaveBeginTime - lStart;
lStart = lWaveBeginTime;
rc.left = rc.right - (int)muldiv32(rc.right - rc.left, lLen, lLenOrig);
}
if (lStart + lLen > lWaveEndTime) {
lLenOrig = lLen;
lLen = lWaveEndTime - lStart;
rc.right = rc.left + (int)muldiv32(rc.right - rc.left, lLen, lLenOrig);
}
/* Now change and work with samples, not time. */
l = lStart;
lStart = AVIStreamTimeToSample(pavi, lStart);
lLen = AVIStreamTimeToSample(pavi, l + lLen) - lStart;
l = sizeof(wf);
AVIStreamReadFormat(pavi, lStart, &wf, &l);
if (!l)
return;
w = rc.right - rc.left;
h = rc.bottom - rc.top;
if (rc.left > prc->left) {
SelectObject(hdc, GetStockObject(DKGRAY_BRUSH));
PatBlt(hdc, prc->left, rc.top, rc.left - prc->left,
rc.bottom - rc.top, PATCOPY);
}
if (rc.right < prc->right) {
SelectObject(hdc, GetStockObject(DKGRAY_BRUSH));
PatBlt(hdc, rc.right, rc.top, prc->right - rc.right,
rc.bottom - rc.top, PATCOPY);
}
#ifdef WIN32
#define BACKBRUSH (RGB(0, 0, 0))
#define MONOBRUSH (RGB(0,255,0))
#define LEFTBRUSH (RGB(0,0,255))
#define RIGHTBRUSH (RGB(0,255,0))
#define HPOSBRUSH (RGB(255,0,0))
#else
#define BACKBRUSH (GetSysColor(COLOR_3DFACE))
#define MONOBRUSH (GetSysColor(COLOR_3DSHADOW))
#define LEFTBRUSH (RGB(0,0,255))
#define RIGHTBRUSH (RGB(0,255,0))
#define HPOSBRUSH (RGB(255,0,0))
#endif
hbr = SelectObject(hdc, CreateSolidBrush(BACKBRUSH));
PatBlt(hdc, rc.left, rc.top, w, h, PATCOPY);
DeleteObject(SelectObject(hdc, hbr));
//
// !!! we can only paint PCM data
//
if (wf.wf.wFormatTag != WAVE_FORMAT_PCM)
return;
lBytes = lLen * wf.wf.nChannels * wf.wBitsPerSample / 8;
if (!lpAudio)
lpAudio = GlobalAllocPtr (GHND, lBytes);
else if ((LONG)GlobalSizePtr(lpAudio) < lBytes)
lpAudio = GlobalReAllocPtr(lpAudio, lBytes, GMEM_MOVEABLE);
if (!lpAudio)
return;
AVIStreamRead(pavi, lStart, lLen, lpAudio, lBytes, NULL, &l);
if (l != lLen)
; // FatalAppExit(0, "BLAH!!!");
lLen = l;
if (lLen == 0)
return;
#define MulDiv(a,b,c) (UINT)((DWORD)(UINT)(a) * (DWORD)(UINT)(b) / (UINT)(c))
// !!! Flickers less painting it NOW or LATER?
// First show the current position as a bar
hbr = SelectObject(hdc, CreateSolidBrush(HPOSBRUSH));
PatBlt(hdc, prc->right / 2, prc->top, 1, prc->bottom - prc->top, PATCOPY);
DeleteObject(SelectObject(hdc, hbr));
// Mono
if (wf.wf.nChannels == 1) {
hbr = SelectObject(hdc, CreateSolidBrush(MONOBRUSH));
y = rc.top + h/2;
PatBlt(hdc, rc.left, y, w, 1, PATCOPY);
if (wf.wBitsPerSample == 8) {
for (x=0; x<w; x++) {
b = *((HPBYTE)lpAudio + muldiv32(x,lLen,w));
if (b > 0x80) {
i = y - MulDiv(b-0x80,(h/2),128);
PatBlt(hdc, rc.left+x, i, 1, y-i, PATCOPY);
}
else {
i = y + MulDiv(0x80-b,(h/2),128);
PatBlt(hdc, rc.left+x, y, 1, i-y, PATCOPY);
}
}
}
else if (wf.wBitsPerSample == 16) {
for (x=0; x<w; x++) {
i = *((HPINT)lpAudio + muldiv32(x,lLen,w));
if (i > 0) {
i = y - (int) ((LONG)i * (h/2) / 32768);
PatBlt(hdc, rc.left+x, i, 1, y-i, PATCOPY);
}
else {
i = (int) ((LONG)i * (h/2) / 32768);
PatBlt(hdc, rc.left+x, y, 1, -i, PATCOPY);
}
}
}
DeleteObject(SelectObject(hdc, hbr));
} // endif mono
// Stereo
else if (wf.wf.nChannels == 2) {
if (wf.wBitsPerSample == 8) {
// Left channel
hbr = SelectObject(hdc, CreateSolidBrush(LEFTBRUSH));
y = rc.top + h/4;
PatBlt(hdc, rc.left, y, w, 1, PATCOPY);
for (x=0; x<w; x++) {
b = *((HPBYTE)lpAudio + muldiv32(x,lLen,w) * 2);
if (b > 0x80) {
i = y - MulDiv(b-0x80,(h/4),128);
PatBlt(hdc, rc.left+x, i, 1, y-i, PATCOPY);
}
else {
i = y + MulDiv(0x80-b,(h/4),128);
PatBlt(hdc, rc.left+x, y, 1, i-y, PATCOPY);
}
}
// Right channel
DeleteObject(SelectObject(hdc, hbr));
hbr = SelectObject(hdc, CreateSolidBrush(RIGHTBRUSH));
y = rc.top + h * 3 / 4;
PatBlt(hdc, rc.left, y, w, 1, PATCOPY);
for (x=0; x<w; x++) {
b = *((HPBYTE)lpAudio + muldiv32(x,lLen,w) * 2 + 1);
if (b > 0x80) {
i = y - MulDiv(b-0x80,(h/4),128);
PatBlt(hdc, rc.left+x, i, 1, y-i, PATCOPY);
}
else {
i = y + MulDiv(0x80-b,(h/4),128);
PatBlt(hdc, rc.left+x, y, 1, i-y, PATCOPY);
}
}
DeleteObject(SelectObject(hdc, hbr));
}
else if (wf.wBitsPerSample == 16) {
// Left channel
hbr = SelectObject(hdc, CreateSolidBrush(LEFTBRUSH));
y = rc.top + h/4;
PatBlt(hdc, rc.left, y, w, 1, PATCOPY);
for (x=0; x<w; x++) {
i = *((HPINT)lpAudio + muldiv32(x,lLen,w) * 2);
if (i > 0) {
i = y - (int) ((LONG)i * (h/4) / 32768);
PatBlt(hdc, rc.left+x, i, 1, y-i, PATCOPY);
}
else {
i = (int) ((LONG)i * (h/4) / 32768);
PatBlt(hdc, rc.left+x, y, 1, -i, PATCOPY);
}
}
// Right channel
DeleteObject(SelectObject(hdc, hbr));
hbr = SelectObject(hdc, CreateSolidBrush(RIGHTBRUSH));
y = rc.top + h * 3 / 4;
PatBlt(hdc, rc.left, y, w, 1, PATCOPY);
for (x=0; x<w; x++) {
i = *((HPINT)lpAudio + muldiv32(x,lLen,w) * 2 + 1);
if (i > 0) {
i = y - (int) ((LONG)i * (h/4) / 32768);
PatBlt(hdc, rc.left+x, i, 1, y-i, PATCOPY);
}
else {
i = (int) ((LONG)i * (h/4) / 32768);
PatBlt(hdc, rc.left+x, y, 1, -i, PATCOPY);
}
}
DeleteObject(SelectObject(hdc, hbr));
}
} // endif stereo
}
/*----------------------------------------------------------------------------*\
| AppWndProc( hwnd, uiMessage, wParam, lParam ) |
| |
| Description: |
| The window proc for the app's main (tiled) window. This processes all |
| of the parent window's messages. |
| |
| Arguments: |
| hwnd window handle for the window |
| uiMessage message number |
| wParam message-dependent |
| lParam message-dependent |
| |
| Returns: |
| 0 if processed, nonzero if ignored |
| |
\*----------------------------------------------------------------------------*/
LONG FAR PASCAL _export AppWndProc(hwnd, msg, wParam, lParam)
HWND hwnd;
unsigned msg;
WPARAM wParam;
LPARAM lParam;
{
PAINTSTRUCT ps;
BOOL f;
HDC hdc;
TCHAR ach[200];
int iFrameWidth;
int iLen;
LONG lFrame, lCurFrame;
int n;
int nFrames;
LPBITMAPINFOHEADER lpbi;
static BYTE abFormat[1024];
LONG l;
LONG lTime;
LONG lSize = 0;
LONG lAudioStart;
LONG lAudioLen;
RECT rcFrame, rcC;
int yStreamTop;
int i;
HBRUSH hbr;
RECT rc;
HRESULT hr;
switch (msg) {
case WM_CREATE:
if (gachFileName[0])
InitAvi(hwnd, gachFileName, MENU_OPEN);
break;
case WM_COMMAND:
return AppCommand(hwnd,msg,wParam,lParam);
case WM_INITMENU:
f = gcpavi > 0;
EnableMenuItem((HMENU)wParam, MENU_SAVE, MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_SAVEAS, f ? MF_ENABLED : MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_SAVERAW,f ? MF_ENABLED : MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_OPTIONS,f ? MF_ENABLED : MF_GRAYED);
f = gcpavi > 0;
EnableMenuItem((HMENU)wParam, MENU_NEW, f ? MF_ENABLED : MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_ADD, f ? MF_ENABLED : MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_COPY, f ? MF_ENABLED : MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_PLAY_STREAM,f ? MF_ENABLED : MF_GRAYED);
f = gpfile != 0;
EnableMenuItem((HMENU)wParam, MENU_CFILE, f ? MF_ENABLED : MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_PLAY_FILE, f ? MF_ENABLED : MF_GRAYED);
f = TRUE;
EnableMenuItem((HMENU)wParam, MENU_PASTE, f ? MF_ENABLED : MF_GRAYED);
f = FALSE;
EnableMenuItem((HMENU)wParam, MENU_CUT, f ? MF_ENABLED : MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_DELETE, f ? MF_ENABLED : MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_MARK, f ? MF_ENABLED : MF_GRAYED);
f = gfAudioFound;
EnableMenuItem((HMENU)wParam, MENU_SAVEWAVE,f ? MF_ENABLED : MF_GRAYED);
f = gfVideoFound || gfAudioFound;
EnableMenuItem((HMENU)wParam, MENU_PLAY,
(f && !gfPlaying) ? MF_ENABLED : MF_GRAYED);
EnableMenuItem((HMENU)wParam, MENU_STOP,
(f && gfPlaying) ? MF_ENABLED : MF_GRAYED);
CheckMenuItem((HMENU)wParam, MENU_ZOOMQUARTER,
(gwZoom == 1) ? MF_CHECKED : MF_UNCHECKED);
CheckMenuItem((HMENU)wParam, MENU_ZOOMHALF,
(gwZoom == 2) ? MF_CHECKED : MF_UNCHECKED);
CheckMenuItem((HMENU)wParam, MENU_ZOOM1,
(gwZoom == 4) ? MF_CHECKED : MF_UNCHECKED);
CheckMenuItem((HMENU)wParam, MENU_ZOOM2,
(gwZoom == 8) ? MF_CHECKED : MF_UNCHECKED);
CheckMenuItem((HMENU)wParam, MENU_ZOOM4,
(gwZoom == 16) ? MF_CHECKED : MF_UNCHECKED);
break;
case WM_NCHITTEST:
if (fWait)
{
lParam = DefWindowProc(hwnd,msg,wParam,lParam);
if (lParam == HTMENU)
lParam = HTCLIENT;
return lParam;
}
break;
case WM_SIZE:
// Set vertical scrollbar for scrolling streams
GetClientRect(hwnd, &rc);
if (vertHeight > rc.bottom) {
vertSBLen = vertHeight - rc.bottom;
SetScrollRange(hwnd, SB_VERT, 0, (int)vertSBLen, TRUE);
} else {
vertSBLen = 0;
SetScrollRange(hwnd, SB_VERT, 0, 0, TRUE);
}
break;
case WM_SETCURSOR:
if (fWait && LOWORD(lParam) == HTCLIENT)
{
SetCursor(LoadCursor(NULL, IDC_WAIT));
return TRUE;
}
break;
case WM_DESTROY:
FreeAvi(hwnd);
RevokeObjects();
AVIStreamExit();
PostQuitMessage(0);
break;
case WM_CLOSE:
if (fWait)
return 0;
break;
case WM_SYSCOMMAND:
switch (wParam & 0xFFF0) {
case SC_KEYMENU:
if (fWait) // block keyboard access to menus if waiting
return 0;
break;
}
break;
case WM_PALETTECHANGED:
if ((HWND)wParam == hwnd)
break;
case WM_QUERYNEWPALETTE:
hdc = GetDC(hwnd);
if (f = DrawDibRealize(ghdd[0], hdc, FALSE)) // !!! stream #
InvalidateRect(hwnd,NULL,TRUE);
ReleaseDC(hwnd,hdc);
return f;
case WM_ERASEBKGND:
break;
case WM_PAINT:
hdc = BeginPaint(hwnd,&ps);
SelectObject(hdc, hfontApp);
#define PRINT(sz) \
(TextOut(hdc, TSPACE, yStreamTop, sz, lstrlen(sz)), \
yStreamTop += tm.tmHeight+1)
#define PF1(sz,a) (wsprintf(ach, sz, a), PRINT(ach))
#define PF2(sz,a,b) (wsprintf(ach, sz, a, b), PRINT(ach))
#define PF3(sz,a,b,c) (wsprintf(ach, sz, a, b, c), PRINT(ach))
#define PF4(sz,a,b,c,d) (wsprintf(ach, sz, a, b, c, d), PRINT(ach))
#define PF5(sz,a,b,c,d,e) (wsprintf(ach, sz, a, b, c, d, e), PRINT(ach))
#define PF6(sz,a,b,c,d,e,f) (wsprintf(ach, sz, a, b, c, d, e, f), PRINT(ach))
#define PF7(sz,a,b,c,d,e,f,g) (wsprintf(ach, sz, a, b, c, d, e, f, g), PRINT(ach))
#define PF8(sz,a,b,c,d,e,f,g,h) (wsprintf(ach, sz, a, b, c, d, e, f, g, h), PRINT(ach))
#define PF9(sz,a,b,c,d,e,f,g,h,i) (wsprintf(ach, sz, a, b, c, d, e, f, g, h, i), PRINT(ach))
GetClientRect(hwnd, &rcC);
lTime = GetScrollTime(hwnd);
yStreamTop = -GetScrollPos(hwnd, SB_VERT);
for (i=0; i<gcpavi; i++) {
AVISTREAMINFO avis;
BOOL fFirstFrame = TRUE;
LONG lPos;
LONG lNearKey;
LONG lPrevKey;
LONG lNextKey;
LONG lNearAny;
LONG lPrevAny;
LONG lNextAny;
LONG lNearFmt;
LONG lPrevFmt;
LONG lNextFmt;
LONG lEnd, lEndTime;
// the idea is to allow stream select!
gaiStreamTop[i] = yStreamTop;
hr = AVIStreamInfo(gapavi[i], &avis, sizeof(avis));
FIXCC(avis.fccHandler);
FIXCC(avis.fccType);
l = sizeof(abFormat);
hr = AVIStreamReadFormat(gapavi[i],0, &abFormat, &l);
#ifdef WIN32
PF7(TEXT("Stream%d [%4.4hs/%4.4hs] Start: %ld Length: %ld (%ld.%03ld sec) "),
i,
(LPSTR)&avis.fccType,
(LPSTR)&avis.fccHandler,
AVIStreamStart(gapavi[i]),
AVIStreamLength(gapavi[i]),
AVIStreamLengthTime(gapavi[i]) / 1000,
AVIStreamLengthTime(gapavi[i]) % 1000);
#else
PF7(TEXT("Stream%d [%4.4ls/%4.4ls] Start: %ld Length: %ld (%ld.%03ld sec) "),
i,
(LPSTR)&avis.fccType,
(LPSTR)&avis.fccHandler,
AVIStreamStart(gapavi[i]),
AVIStreamLength(gapavi[i]),
AVIStreamLengthTime(gapavi[i]) / 1000,
AVIStreamLengthTime(gapavi[i]) % 1000);
#endif
lPos = AVIStreamTimeToSample(gapavi[i], lTime);
AVIStreamSampleSize(gapavi[i], lPos, &lSize);
lNearKey = AVIStreamFindSample(gapavi[i], lPos, FIND_PREV|FIND_KEY);
#ifdef TEST_FINDSAMPLE
lNearAny = AVIStreamFindSample(gapavi[i], lPos, FIND_PREV|FIND_ANY);
lNearFmt = AVIStreamFindSample(gapavi[i], lPos, FIND_PREV|FIND_FORMAT);
lPrevKey = AVIStreamFindSample(gapavi[i], lPos-1, FIND_PREV|FIND_KEY);
lPrevAny = AVIStreamFindSample(gapavi[i], lPos-1, FIND_PREV|FIND_ANY);
lPrevFmt = AVIStreamFindSample(gapavi[i], lPos-1, FIND_PREV|FIND_FORMAT);
lNextKey = AVIStreamFindSample(gapavi[i], lPos+1, FIND_NEXT|FIND_KEY);
lNextAny = AVIStreamFindSample(gapavi[i], lPos+1, FIND_NEXT|FIND_ANY);
lNextFmt = AVIStreamFindSample(gapavi[i], lPos+1, FIND_NEXT|FIND_FORMAT);
#endif
PF5(TEXT("Pos:%ld Time:%ld.%03ld sec Size:%ld bytes %s "),
lPos, lTime/1000, lTime%1000, lSize,
(LPTSTR)(lPos == lNearKey ? TEXT("Key") : TEXT("")));
#ifdef TEST_FINDSAMPLE
PF9(TEXT("PrevKey=%ld NearKey=%ld NextKey=%ld, PrevAny=%ld NearAny=%ld NextAny=%ld, PrevFmt=%ld NearFmt=%ld NextFmt=%ld "),
lPrevKey, lNearKey, lNextKey,
lPrevAny, lNearAny, lNextAny,
lPrevFmt, lNearFmt, lNextFmt);
#endif
if (avis.fccType == streamtypeVIDEO) {
lpbi = (LPBITMAPINFOHEADER)abFormat;
FIXCC(lpbi->biCompression);
//
// display video format
//
// Video: 160x120x8 (cram)
//
#ifdef WIN32
PF4(TEXT("Format: %dx%dx%d (%4.4hs)"),
(int)lpbi->biWidth,
(int)lpbi->biHeight,
(int)lpbi->biBitCount,
(LPSTR)&lpbi->biCompression);
#else
PF4(TEXT("Format: %dx%dx%d (%4.4s)"),
(int)lpbi->biWidth,
(int)lpbi->biHeight,
(int)lpbi->biBitCount,
(LPSTR)&lpbi->biCompression);
#endif
//
// Which frame belongs at this time?
//
lEndTime = AVIStreamEndTime(gapavi[i]);
if (lTime <= lEndTime)
lFrame = AVIStreamTimeToSample(gapavi[i], lTime);
else { // we've scrolled past the end of this stream
lEnd = AVIStreamEnd(gapavi[i]);
lFrame = lEnd + AVIStreamTimeToSample(
gapavi[i], lTime - lEndTime);
}
yStreamTop += TSPACE/2;
// how wide is each frame to paint?
iFrameWidth = (avis.rcFrame.right - avis.rcFrame.left) *
gwZoom / 4 + HSPACE;
//
// how many frames can we fit on each half of the screen?
//
nFrames = (rcC.right - iFrameWidth) / (2 * iFrameWidth);
if (nFrames < 0)
nFrames = 0; // at least draw *something*
// Step through all the frames we'll draw
for (n=-nFrames; n<=nFrames; n++)
{
// !!! If this code didn't have awful rounding errors,
// I wouldn't need to special case the first stream.
if (gapavi[i] == gpaviVideo) {
// by definition, we know what frame we're drawing.
lCurFrame = lFrame + n;
// what time is it at that frame?
l = AVIStreamSampleToTime(gapavi[i], lCurFrame);
} else {
// What time is it at this pixel?
l = lTime + muldiv32(n * iFrameWidth, gdwMicroSecPerPixel, 1000);
// Get the frame
lCurFrame = AVIStreamTimeToSample(gapavi[i], l);
}
// !!!
// Could actually return an LPBI for invalid frames
// so we better force it to NULL.
//
if (gapgf[i] && lCurFrame >= AVIStreamStart(gapavi[i]))
lpbi = AVIStreamGetFrame(gapgf[i], lCurFrame);
else
lpbi = NULL;
// Location of the current frame
rcFrame.left = rcC.right / 2 -
((avis.rcFrame.right - avis.rcFrame.left) *
gwZoom/4)/2+ (n * iFrameWidth);
rcFrame.top = yStreamTop;
rcFrame.right = rcFrame.left +
(avis.rcFrame.right - avis.rcFrame.left)*gwZoom/4;
rcFrame.bottom = rcFrame.top +
(avis.rcFrame.bottom - avis.rcFrame.top)*gwZoom/4;
//
// draw frame around current frame.
//
if (n == 0)
hbr = CreateSolidBrush(RGB(255,0,0));
else
hbr = CreateSolidBrush(RGB(255,255,255));
InflateRect(&rcFrame, 1, 1);
FrameRect(hdc, &rcFrame, hbr);
InflateRect(&rcFrame, -1, -1);
DeleteObject (hbr);
if (lpbi)
{
DrawDibDraw(ghdd[i],hdc,
rcFrame.left, rcFrame.top,
rcFrame.right - rcFrame.left,
rcFrame.bottom - rcFrame.top,
lpbi, NULL,
0, 0, -1, -1,
((gapavi[i] == gpaviVideo) && fFirstFrame) ?
0 : DDF_BACKGROUNDPAL);
fFirstFrame = FALSE;
iLen = wsprintf(ach, TEXT("%ld %ld.%03lds"),
lCurFrame, l/1000, l%1000);
}
else
{
if (gapgf[i])
SelectObject(hdc,GetStockObject(DKGRAY_BRUSH));
else
SelectObject(hdc,GetStockObject(LTGRAY_BRUSH));
PatBlt(hdc,
rcFrame.left, rcFrame.top,
rcFrame.right - rcFrame.left,
rcFrame.bottom - rcFrame.top,
PATCOPY);
iLen = 0;
ach[0] = TEXT('\0');
}
rc.left = rcFrame.left;
rc.right = rcFrame.right + HSPACE;
rc.top = rcFrame.bottom + 2;
rc.bottom = rc.top + TSPACE;
ExtTextOut(hdc, rc.left, rc.top, ETO_OPAQUE,
&rc, ach, iLen, NULL);
}
yStreamTop += TSPACE + avis.rcFrame.bottom*gwZoom/4;
}
else if (avis.fccType == streamtypeAUDIO)
{
LPWAVEFORMAT pwf = (LPWAVEFORMAT)abFormat;
TCHAR *szFmt;
if (pwf->wFormatTag == 1) { // PCM
if (pwf->nChannels == 1)
szFmt = TEXT("Format: Mono %dHz %dbit");
else
szFmt = TEXT("Format: Stereo %dHz %dbit");
}
else if (pwf->wFormatTag == 2) { // ADPCM
if (pwf->nChannels == 1)
szFmt = TEXT("Format: ADPCM Mono %dHz %dbit");
else
szFmt = TEXT("Format: ADPCM Stereo %dHz %dbit");
}
else {
if (pwf->nChannels == 1)
szFmt = TEXT("Format: Compressed Mono %dHz %dbit");
else
szFmt = TEXT("Format: Compressed Stereo %dHz %dbit");
}
PF2(szFmt,(int)pwf->nSamplesPerSec,
(int)(pwf->nAvgBytesPerSec * 8 / pwf->nSamplesPerSec));
lAudioStart = lTime - muldiv32(rcC.right / 2,
gdwMicroSecPerPixel, 1000);
lAudioLen = 2 * (lTime - lAudioStart);
// !!! Fix the SAMPLE field for short audio clips !!!
//PF2("Sample:%ld %ld ",
// AVIStreamTimeToSample(gapavi[i], lAudioStart),
// AVIStreamTimeToSample(gapavi[i], lAudioLen));
/* Make rectangle to draw audio into */
rc.left = rcC.left;
rc.right = rcC.right;
rc.top = yStreamTop;
rc.bottom = rc.top + AUDIOVSPACE * gwZoom / 4;
PaintAudio(hdc, &rc, gapavi[i], lAudioStart, lAudioLen);
yStreamTop += rc.bottom - rc.top;
}
else if (avis.fccType == streamtypeTEXT)
{
LONG lPos;
int iLeft;
lPos = AVIStreamTimeToSample(gapavi[i],
lTime -
muldiv32((rcC.right - rcC.left),
gdwMicroSecPerPixel,
1000));
if (lPos < 0)
lPos = 0;
PatBlt(hdc, rcC.left, yStreamTop,
rcC.right - rcC.left, TSPACE + TSPACE,
WHITENESS);
while (lPos < AVIStreamEnd(gapavi[i]) - 1) {
// What pixel is it at this time?
iLeft = (rcC.right + rcC.left) / 2 +
(int) muldiv32(AVIStreamSampleToTime(gapavi[i], lPos) - lTime,
1000, gdwMicroSecPerPixel);
if (iLeft >= rcC.right)
break;
AVIStreamRead(gapavi[i], lPos, 1, ach, sizeof(ach), &l, NULL);
if (l)
TextOut(hdc, iLeft, yStreamTop, ach, (int) l - 1);
iLen = wsprintf(ach, TEXT("%ld"), lPos);
TextOut(hdc, iLeft, yStreamTop + TSPACE, ach, iLen);
#if 0
if (ghic[i]) {
ICDrawBegin(ghic[i],
0,
0,
hwnd,
hdc,
iLeft,
yStreamTop,
100,
50,
NULL,
0,
0,
-1,
-1,
1,
1);
ICDraw(ghic[i], 0,
NULL, ach, l, lPos);
ICDrawEnd(ghic[i]);
}
#endif
lPos += 1;
}
yStreamTop += TSPACE + TSPACE;
}
else
{
}
yStreamTop += VSPACE;
if (yStreamTop >= rcC.bottom)
break;
}
EndPaint(hwnd,&ps);
break;
case WM_KEYDOWN:
switch (wParam)
{
case VK_UP: PostMessage (hwnd,WM_VSCROLL,SB_LINEUP,0L); break;
case VK_DOWN: PostMessage (hwnd,WM_VSCROLL,SB_LINEDOWN,0L); break;
case VK_PRIOR: PostMessage (hwnd,WM_HSCROLL,SB_PAGEUP,0L); break;
case VK_NEXT: PostMessage (hwnd,WM_HSCROLL,SB_PAGEDOWN,0L); break;
case VK_HOME: PostMessage (hwnd,WM_HSCROLL,SB_THUMBPOSITION,0L); break;
case VK_END: PostMessage (hwnd,WM_HSCROLL,SB_THUMBPOSITION,0x7FFF); break;
case VK_LEFT: PostMessage (hwnd,WM_HSCROLL,SB_LINEUP,0L); break;
case VK_RIGHT: PostMessage (hwnd,WM_HSCROLL,SB_LINEDOWN,0L); break;
}
break;
case WM_HSCROLL:
l = GetScrollTime(hwnd);
switch (GET_WM_HSCROLL_CODE(wParam, lParam)) {
case SB_LINEDOWN: l += timehscroll; break;
case SB_LINEUP: l -= timehscroll; break;
case SB_PAGEDOWN: l += timeLength/10; break;
case SB_PAGEUP: l -= timeLength/10; break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
l = GET_WM_HSCROLL_POS(wParam, lParam);
l = timeStart + muldiv32(l, timeLength, SCROLLRANGE);
break;
}
if (l < timeStart)
l = timeStart;
if (l > timeEnd)
l = timeEnd;
if (l == GetScrollTime(hwnd))
break;
SetScrollTime(hwnd, l);
InvalidateRect(hwnd, NULL, FALSE);
UpdateWindow(hwnd);
break;
case WM_VSCROLL:
l = GetScrollPos(hwnd, SB_VERT);
GetClientRect(hwnd, &rc);
switch (GET_WM_VSCROLL_CODE(wParam, lParam)) {
case SB_LINEDOWN: l += 10; break;
case SB_LINEUP: l -= 10; break;
case SB_PAGEDOWN: l += rc.bottom; break;
case SB_PAGEUP: l -= rc.bottom; break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
l = GET_WM_VSCROLL_POS(wParam, lParam);
break;
}
if (l < 0)
l = 0;
if (l > vertSBLen)
l = vertSBLen;
if (l == GetScrollPos(hwnd, SB_VERT))
break;
SetScrollPos(hwnd, SB_VERT, (int)l, TRUE);
InvalidateRect(hwnd, NULL, TRUE);
UpdateWindow(hwnd);
break;
case MM_WOM_OPEN:
case MM_WOM_DONE:
case MM_WOM_CLOSE:
aviaudioMessage(hwnd, msg, wParam, lParam);
break;
}
return DefWindowProc(hwnd,msg,wParam,lParam);
}
BOOL FAR PASCAL _export SaveCallback(int iProgress)
{
TCHAR ach[128];
wsprintf(ach, TEXT("%s - Saving %s: %d%%"),
(LPTSTR) gszAppName, (LPTSTR) gachSaveFileName, iProgress);
SetWindowText(ghwndApp, ach);
return WinYield();
}
LONG NEAR PASCAL AppCommand (hwnd, msg, wParam, lParam)
HWND hwnd;
unsigned msg;
WPARAM wParam;
LPARAM lParam;
{
OPENFILENAME ofn;
TCHAR achFilter[128];
switch(GET_WM_COMMAND_ID(wParam, lParam))
{
case MENU_EXIT:
PostMessage(hwnd,WM_CLOSE,0,0L);
break;
// Set the compression options for each stream - pass an array of
// streams and an array of compression options structures
case MENU_OPTIONS:
AVISaveOptions(hwnd, ICMF_CHOOSE_KEYFRAME | ICMF_CHOOSE_DATARATE
| ICMF_CHOOSE_PREVIEW,
gcpavi, gapavi, galpAVIOptions);
break;
case MENU_SAVEAS:
case MENU_SAVERAW:
case MENU_SAVESMALL:
gachSaveFileName[0] = 0;
/* prompt user for file to open */
ofn.lStructSize = sizeof(OPENFILENAME);
ofn.hwndOwner = hwnd;
ofn.hInstance = NULL;
AVIBuildFilter(achFilter, sizeof(achFilter)/sizeof(TCHAR), TRUE);
ofn.lpstrFilter = achFilter;
ofn.lpstrCustomFilter = NULL;
ofn.nMaxCustFilter = 0;
ofn.nFilterIndex = 0;
ofn.lpstrFile = gachSaveFileName;
ofn.nMaxFile = sizeof(gachSaveFileName)/sizeof(TCHAR);
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL;
if (GET_WM_COMMAND_ID(wParam, lParam) == MENU_SAVEAS)
ofn.lpstrTitle = TEXT("Save AVI File");
else if (GET_WM_COMMAND_ID(wParam, lParam) == MENU_SAVERAW)
ofn.lpstrTitle = TEXT("Save Raw");
else if (GET_WM_COMMAND_ID(wParam, lParam) == MENU_SAVESMALL)
ofn.lpstrTitle = TEXT("Save Small");
else
ofn.lpstrTitle = TEXT("Please give me a title");
ofn.Flags = OFN_PATHMUSTEXIST | OFN_HIDEREADONLY |
OFN_OVERWRITEPROMPT;
ofn.nFileOffset = 0;
ofn.nFileExtension = 0;
ofn.lpstrDefExt = TEXT("avi");
ofn.lCustData = 0;
ofn.lpfnHook = NULL;
ofn.lpTemplateName = NULL;
if (GetSaveFileName(&ofn))
{
FARPROC lpfn = MakeProcInstance(SaveCallback, ghInstApp);
if (lpfn)
{
DWORD fccHandler[MAXNUMSTREAMS];
int i;
StartWait();
for (i = 0; i < gcpavi; i++)
fccHandler[i] = galpAVIOptions[i]->fccHandler;
// We only want to save the first video stream
if (GET_WM_COMMAND_ID(wParam, lParam) == MENU_SAVESMALL) {
SaveSmall(gpaviVideo, gachSaveFileName);
EndWait();
break;
}
// !!! This won't take away audio compression !!!
// We want to save raw -- don't use any video compression
if (GET_WM_COMMAND_ID(wParam, lParam) == MENU_SAVERAW)
for (i = 0; i < gcpavi; i++)
galpAVIOptions[i]->fccHandler = 0;
AVISaveV(gachSaveFileName,
NULL,
(AVISAVECALLBACK) lpfn,
gcpavi,
gapavi,
galpAVIOptions);
// !!! error check?
// Now put the video compressors back that we stole
for (i = 0; i < gcpavi; i++)
galpAVIOptions[i]->fccHandler = fccHandler[i];
EndWait();
FreeProcInstance(lpfn);
FixWindowTitle(hwnd);
}
}
break;
case MENU_NEW:
FreeAvi(hwnd);
gachFileName[0] = TEXT('\0');
FixWindowTitle(hwnd);
break;
case MENU_OPEN:
case MENU_ADD:
gachFileName[0] = 0;
/* prompt user for file to open */
ofn.lStructSize = sizeof(OPENFILENAME);
ofn.hwndOwner = hwnd;
ofn.hInstance = NULL;
if (wParam == MENU_ADD)
{
ofn.lpstrTitle = TEXT("Merge With");
}
else
{
ofn.lpstrTitle = TEXT("Open AVI");
}
if (gachFilter[0] == TEXT('\0'))
AVIBuildFilter(gachFilter, sizeof(gachFilter)/sizeof(TCHAR), FALSE);
ofn.lpstrFilter = gachFilter;
ofn.lpstrCustomFilter = NULL;
ofn.nMaxCustFilter = 0;
ofn.nFilterIndex = 0;
ofn.lpstrFile = gachFileName;
ofn.nMaxFile = sizeof(gachFileName)/sizeof(TCHAR);
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL;
ofn.Flags = OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY;
ofn.nFileOffset = 0;
ofn.nFileExtension = 0;
ofn.lpstrDefExt = NULL;
ofn.lCustData = 0;
ofn.lpfnHook = NULL;
ofn.lpTemplateName = NULL;
if (GetOpenFileNamePreview(&ofn))
{
InitAvi(hwnd, gachFileName, wParam);
}
break;
case MENU_BALL:
InitBall(hwnd);
break;
case MENU_ZOOMQUARTER:
gwZoom = 1;
FixScrollbars(hwnd);
InvalidateRect(hwnd, NULL, TRUE);
break;
case MENU_ZOOMHALF:
gwZoom = 2;
FixScrollbars(hwnd);
InvalidateRect(hwnd, NULL, TRUE);
break;
case MENU_ZOOM1:
gwZoom = 4;
FixScrollbars(hwnd);
InvalidateRect(hwnd, NULL, TRUE);
break;
case MENU_ZOOM2:
gwZoom = 8;
FixScrollbars(hwnd);
InvalidateRect(hwnd, NULL, TRUE);
break;
case MENU_ZOOM4:
gwZoom = 16;
FixScrollbars(hwnd);
InvalidateRect(hwnd, NULL, TRUE);
break;
//
// readly play the file, via MCI
//
case MENU_PLAY_STREAM:
case MENU_PLAY_FILE:
{
TCHAR ach[80];
HWND hwndMci = MCIWndCreate(NULL, ghInstApp,
MCIWNDF_SHOWNAME | MCIWNDF_SHOWMODE |
WS_OVERLAPPEDWINDOW | WS_VISIBLE,
NULL);
if (hwndMci) {
if (GET_WM_COMMAND_ID(wParam,lParam) == MENU_PLAY_FILE)
wsprintf(ach, TEXT("AVIVideo!@%ld"), gpfile);
else
wsprintf(ach, TEXT("AVIVideo!@%ld"), gapavi[giCurrentStream]);
MCIWndOpen(hwndMci, ach, 0);
MCIWndPlay(hwndMci);
}
}
break;
//
// Simulate playing the file. We just play the 1st audio stream and let
// our main message loop scroll the video by whenever it's bored.
//
case MENU_PLAY:
if (gfAudioFound)
aviaudioPlay(hwnd,
gpaviAudio,
AVIStreamTimeToSample(gpaviAudio, GetScrollTime(hwnd)),
AVIStreamEnd(gpaviAudio),
FALSE);
gfPlaying = TRUE;
glPlayStartTime = timeGetTime();
glPlayStartPos = GetScrollTime(hwnd);
break;
//
// Stop the play preview
//
case MENU_STOP:
if (gfAudioFound)
aviaudioStop();
gfPlaying = FALSE;
break;
#ifdef CLIPSTUFF
case MENU_COPY:
{
PAVIFILE pf;
AVIMakeFileFromStreams(&pf, gcpavi, gapavi);
AVIPutFileOnClipboard(pf);
AVIFileClose(pf);
}
break;
case MENU_CFILE:
AVIPutFileOnClipboard(gpfile);
break;
case MENU_PASTE:
{
PAVIFILE pf = NULL;
AVIGetFromClipboard(&pf);
if (pf) {
DPF("Pasting file from clipboard....\n");
FreeDrawStuff(hwnd);
InsertAVIFile(pf, hwnd, TEXT("Clipboard"));
} else {
DPF("Can't get file from clipboard....\n");
}
break;
}
#endif
}
return 0L;
}
/*----------------------------------------------------------------------------*\
| ErrMsg - Opens a Message box with a error message in it. The user can |
| select the OK button to continue |
\*----------------------------------------------------------------------------*/
int ErrMsg (LPTSTR sz,...)
{
static TCHAR ach[2000];
va_list va;
va_start(va, sz);
wvsprintf (ach,sz, va);
va_end(va);
MessageBox(NULL,ach,NULL,
#ifdef BIDI
MB_RTL_READING |
#endif
MB_OK|MB_ICONEXCLAMATION|MB_TASKMODAL);
return FALSE;
}
/*----------------------------------------------------------------------------*\
| fDialog(id,hwnd,fpfn) |
| |
| Description: |
| This function displays a dialog box and returns the exit code. |
| the function passed will have a proc instance made for it. |
| |
| Arguments: |
| id resource id of dialog to display |
| hwnd parent window of dialog |
| fpfn dialog message function |
| |
| Returns: |
| exit code of dialog (what was passed to EndDialog) |
| |
\*----------------------------------------------------------------------------*/
BOOL fDialog(int id,HWND hwnd,FARPROC fpfn)
{
BOOL f;
HANDLE hInst;
hInst = GetWindowInstance(hwnd);
fpfn = MakeProcInstance(fpfn,hInst);
f = DialogBox(hInst,MAKEINTRESOURCE(id),hwnd,fpfn);
FreeProcInstance (fpfn);
return f;
}
/*****************************************************************************
*
* dprintf() is called by the DPF macro if DEBUG is defined at compile time.
*
* The messages will be send to COM1: like any debug message. To
* enable debug output, add the following to WIN.INI :
*
* [debug]
* ICSAMPLE=1
*
****************************************************************************/
#ifdef DEBUG
#define MODNAME "AVIVIEW"
static void FAR cdecl dprintf(LPSTR szFormat, ...)
{
char ach[128];
static BOOL fDebug = -1;
va_list va;
if (fDebug == -1)
fDebug = GetProfileIntA("Debug", MODNAME, FALSE);
if (!fDebug)
return;
lstrcpyA(ach, MODNAME ": ");
va_start(va, szFormat);
wvsprintfA(ach+lstrlenA(ach),szFormat, va);
va_end(va);
// lstrcat(ach, "\r\n");
OutputDebugStringA(ach);
}
#endif
// !!! function that makes DIBs half as big
BOOL CrunchDIB(
LPBITMAPINFOHEADER lpbiSrc, // BITMAPINFO of source
LPVOID lpSrc, // input bits to crunch
LPBITMAPINFOHEADER lpbiDst, // BITMAPINFO of dest
LPVOID lpDst); // output bits to crunch
//
// Save a video stream into a new file, after calling CrunchDib on each frame...
//
void SaveSmall(PAVISTREAM ps, LPTSTR lpFilename)
{
PAVIFILE pf;
PAVISTREAM psSmall = NULL;
HRESULT hr;
AVISTREAMINFO strhdr;
BITMAPINFOHEADER bi;
BITMAPINFOHEADER biNew;
LONG l;
LPVOID lpOld = NULL;
LPVOID lpNew = NULL;
AVIStreamFormatSize(ps, 0, &l);
if (l > sizeof(bi))
return;
l = sizeof(bi);
hr = AVIStreamReadFormat(ps, 0, &bi, &l);
if (bi.biCompression != BI_RGB)
return;
hr = AVIStreamInfo(ps, &strhdr, sizeof(strhdr));
hr = AVIFileOpen(&pf, lpFilename, OF_WRITE | OF_CREATE, NULL);
if (hr != 0)
return;
biNew = bi;
biNew.biWidth /= 2;
biNew.biHeight /= 2;
biNew.biSizeImage = ((((UINT)biNew.biBitCount * biNew.biWidth + 31)&~31) / 8) *
biNew.biHeight;
SetRect(&strhdr.rcFrame, 0, 0, (int) biNew.biWidth, (int) biNew.biHeight);
hr = AVIFileCreateStream(pf, &psSmall, &strhdr);
if (hr != 0) {
goto exit;
}
hr = AVIStreamSetFormat(psSmall, 0, &biNew, sizeof(biNew));
if (hr != 0) {
goto exit;
}
lpOld = GlobalAllocPtr(GMEM_MOVEABLE, bi.biSizeImage);
lpNew = GlobalAllocPtr(GMEM_MOVEABLE, biNew.biSizeImage);
if (!lpOld || !lpNew) {
goto exit;
}
for (l = AVIStreamStart(ps); l < AVIStreamEnd(ps); l++) {
hr = AVIStreamRead(ps, l, 1, lpOld, bi.biSizeImage, NULL, NULL);
// !!! error check
CrunchDIB(&bi, lpOld, &biNew, lpNew);
hr = AVIStreamWrite(psSmall, l, 1, lpNew, biNew.biSizeImage, AVIIF_KEYFRAME, NULL, NULL);
// !!! error check
}
exit:
if (lpOld)
GlobalFreePtr(lpOld);
if (lpNew)
GlobalFreePtr(lpNew);
if (psSmall)
AVIStreamClose(psSmall);
AVIFileClose(pf);
}
Reference in a new issue Copy permalink