/**
* Timer callback used to check about end of media (except JTS type)
*/
static void CALLBACK audio_timer_callback(UINT uID, UINT uMsg,
DWORD dwUser,
DWORD dw1,
DWORD dw2) {
audio_handle* pHandle = (audio_handle*)dwUser;
if (pHandle->hWnd) {
if (-1 == pHandle->duration) {
pHandle->duration = MCIWndGetLength(pHandle->hWnd);
JAVA_DEBUG_PRINT1("[jc_media] audio_timer_callback %d\n",
pHandle->duration);
}
pHandle->offset = MCIWndGetPosition(pHandle->hWnd);
pHandle->curTime = pHandle->offset;
/* Is end of media reached? */
if (pHandle->offset >= pHandle->duration) {
/* Post EOM event to Java and kill player timer */
pHandle->timerId = 0;
pHandle->offset = 0;
timeKillEvent(uID);
JAVA_DEBUG_PRINT1("[jc_media] javanotify_on_media_notification %d\n",
pHandle->playerId);
javanotify_on_media_notification(JAVACALL_EVENT_MEDIA_END_OF_MEDIA,
pHandle->playerId, (void*)pHandle->duration);
}
}
}
static javacall_result video_start_video_snapshot(javacall_handle handle,
const javacall_utf16* imageType, long length)
{
audio_handle* pHandle = (audio_handle*)handle;
char* data;
static LimeFunction *f = NULL;
if (snapshot_buffer != NULL) {
return JAVACALL_FAIL;
}
if (f == NULL) {
f = NewLimeFunction(LIME_MMAPI_PACKAGE,
LIME_MMAPI_CLASS,
"snapshot");
}
f->call(f, &data, &dataLength, pHandle->hWnd, imageType, length);
if(data == NULL){
dataLength = -1;
}
snapshot_buffer = (char *) malloc(dataLength);
memcpy(snapshot_buffer, data, dataLength);
javanotify_on_media_notification( JAVACALL_EVENT_MEDIA_SNAPSHOT_FINISHED,
pHandle->isolateId, pHandle->playerId, NULL == data ? JAVACALL_FAIL :
JAVACALL_OK, NULL);
return JAVACALL_OK;
}
/**
* VFW frame grab callback function
*/
static LRESULT PASCAL camera_grabber_callback(HWND hWnd, LPVIDEOHDR lpVHdr)
{
#define PNG_HEADER_SIZE (1000)
int i;
char* pOutput;
int copyLineBytes;
/* Free previous frame buffer */
if (NULL != _pFrameBuffer) {
FREE(_pFrameBuffer);
_pFrameBuffer = NULL;
}
/* Free encoding buffer */
if (NULL != _pEncodingBuffer) {
FREE(_pEncodingBuffer);
_pEncodingBuffer = NULL;
}
/* Grab current frame */
if (JAVACALL_TRUE == _grabFrame) {
copyLineBytes = (_grabWidth * 3);
_pFrameBuffer = MALLOC(lpVHdr->dwBytesUsed);
_pEncodingBuffer =
MALLOC(javautil_media_get_png_size(_grabWidth, _grabHeight));
if (_pFrameBuffer && _pEncodingBuffer) {
pOutput = _pFrameBuffer;
/* Impl note: - Top / Bottom Reverse */
for (i = _grabHeight - 1; i >= 0; --i) {
memcpy(pOutput, lpVHdr->lpData + (i * copyLineBytes), copyLineBytes);
pOutput += copyLineBytes;
}
_encodingDataSize = javautil_media_rgb_to_png(
_pFrameBuffer, _pEncodingBuffer, _grabWidth, _grabHeight);
javanotify_on_media_notification(JAVACALL_EVENT_MEDIA_SNAPSHOT_FINISHED,
_playerId, 0);
} else {
if (_pFrameBuffer) {
FREE(_pFrameBuffer);
_pFrameBuffer = NULL;
}
if (_pEncodingBuffer) {
FREE(_pEncodingBuffer);
_pEncodingBuffer = NULL;
}
}
_grabFrame = JAVACALL_FALSE;
}
InvalidateRect(GET_MCIWND_HWND(), NULL, FALSE);
return 0;
}
static javacall_result audio_start(javacall_handle handle){
audio_handle* pHandle = (audio_handle*)handle;
if (JAVACALL_FALSE == pHandle->isForeground) {
JAVA_DEBUG_PRINT("[jc_media] Audio fake start in background!\n");
return JAVACALL_OK;
}
/* Create MCI window by using temp file */
audio_prepare_MCIWnd(pHandle);
JAVA_DEBUG_PRINT1("[jc_media] + javacall_media_start %s\n", pHandle->fileName);
/* Seek to play position */
if (pHandle->offset) {
MCIWndSeek(pHandle->hWnd, pHandle->offset);
pHandle->curTime = pHandle->offset;
} else {
pHandle->curTime = 0;
}
/* Start play */
if (pHandle->hWnd && 0 == MCIWndPlay(pHandle->hWnd)) {
JAVA_DEBUG_PRINT("[jc_media] - javacall_media_start OK\n");
pHandle->duration = MCIWndGetLength(pHandle->hWnd);
javanotify_on_media_notification(JAVACALL_EVENT_MEDIA_DURATION_UPDATED,
pHandle->playerId, (void*)pHandle->duration);
pHandle->timerId =
(UINT)timeSetEvent(TIMER_CALLBACK_DURATION, 100,
audio_timer_callback,(DWORD)pHandle, TIME_PERIODIC);
return JAVACALL_OK;
}
return JAVACALL_FAIL;
}
