*** note: lab07d is now lab08a_video_threads

in terminal
# rm -Rf osdfiles
# cd app
# rm osd_thread.c osd_thread.h video_osd.c video_osd.h picture.c picture.h thread.c thread.h
** video_thread.c
1. replaced CAPTUREDRIVERINITIALIZED #define with INPUTFILEOPENED
2. #define INPUTFILE "/tmp/video.raw"
3. removed cAttrs, hCapture and cBuf declarations
4. declare FILE *inputFile and int captureSize
5. changed dAttrs.videoStd to VideoStd_VGA (before it was set to match capture std)
6. set bufSize = 640 * 480 * 2 (previously was calculated from capture driver)
7. removed capture driver initialization
8. replaced capture drive initialization with fopen
9. Inside while loop, added fread of captureSize variable followed by an fread of size captureSize into V4L2 output buffer
10. Remove Capture_delete in video thread cleanup
11. remove hBufTabCapture and videoStd variable declarations
*** main.c
12. remove #include "osd_thread.h", "thread.h" <pthread.h>
13. remove osd_env global variable
14. remove osd_env.quit = 1 in signal handler
15. remove pthread_t videoThread, osdThread, osdThreadReturn declarations
16. remove OSDTHREAD #defines for initMask
17. replace launch_pthread of video thread with a direct function call
    videoThreadReturn = video_thread_fxn((void *) &video_env);
18. remove launch_pthread of osd thread
19. remove pthread_join calls for both video and osd threads
