ref: 063050e9aa438f4e88db813d1377b569a442de19
dir: /main.c/
#include <u.h>
#include <libc.h>
#include <draw.h>
#include <memdraw.h>
#include <mouse.h>
#include <keyboard.h>
#include <thread.h>
#include "frame.h"
#include "misc.h"
#include "stream.h"
#include "decoder.h"
int mainstacksize = 128*1024;
static Image *curim;
static uvlong lastframe;
static int audiofd = -1;
static Channel *audiosync;
static Channel *audiofinished;
static char info[256];
static int showinfo;
static uvlong delay;
static int framedrop;
static void
audioproc(void *x)
{
Streamframe f;
Stream *s;
int audiofd;
if((audiofd = open("/dev/audio", OWRITE|OCEXEC)) < 0){
fprint(2, "runaudio: %r\n");
recvp(audiosync);
chanclose(audiosync);
}else{
for(s = x; Sread(s, &f) == 0 && f.sz > 0;){
recvp(audiosync);
chanclose(audiosync);
write(audiofd, f.buf, f.sz);
}
close(audiofd);
}
sendp(audiofinished, nil);
threadexits(nil);
}
static void
drawframe(Frame *f)
{
uvlong x, end, left;
Rectangle r, clip;
if(lastframe == 0)
lastframe = nanosec();
end = lastframe + f->dt - delay;
if(framedrop && delay > 0 && nanosec() >= end+delay)
goto drop;
lockdisplay(display);
if(curim != nil && (Dx(curim->r) != f->w || Dy(curim->r) != f->h)){
freeimage(curim);
curim = nil;
}
r = Rect(0,0,f->w,f->h);
if(curim == nil)
curim = allocimage(display, r, RGB24, 0, DNofill);
loadimage(curim, r, f->rgb, f->w*f->h*3);
while(1){
x = nanosec();
if(x >= end)
break;
left = end - x;
if(left > 750000000ULL)
sleep(70);
else if(left > 250000000ULL)
sleep(20);
else if(left > 100000000ULL)
sleep(1);
}
clip = Rect(f->crop.left, f->crop.top, f->crop.right, f->crop.bottom);
if(badrect(clip))
clip = curim->r;
replclipr(curim, 0, clip);
x = nanosec();
if(Dx(clip) < Dx(screen->r) && Dy(clip) < Dy(screen->r))
r = rectsubpt(screen->r, divpt(Pt(Dx(clip)-Dx(screen->r), Dy(clip)-Dy(screen->r)), 2));
else
r = screen->r;
draw(screen, r, curim, nil, ZP);
if(showinfo)
stringbg(screen, screen->r.min, display->white, ZP, font, info, display->black, ZP);
flushimage(display, 1);
unlockdisplay(display);
delay = nanosec() - x;
drop:
if(audiosync != nil)
sendp(audiosync, nil);
lastframe += f->dt;
free(f);
}
static void
usage(void)
{
fprint(2, "usage: %s [-a AUDIO] file.mp4\n", argv0);
threadexitsall("usage");
}
void
threadmain(int argc, char **argv)
{
enum {
Cframe,
Cplayerdone,
Cmouse,
Ckeyboard,
Cresize,
Cnum,
};
Streamframe f;
Frame *frame;
Mousectl *mctl;
Keyboardctl *kctl;
Rune key;
Mouse m;
char *s, *audio, *status;
Stream *stream, *svideo, *saudio;
Decoder *d;
int i, j, end, done, forced, res, nstreams;
Alt a[Cnum+1] =
{
[Cframe] = { nil, &frame, CHANRCV },
[Cplayerdone] = { nil, &status, CHANRCV },
[Cmouse] = { nil, &m, CHANRCV },
[Ckeyboard] = { nil, &key, CHANRCV },
[Cresize] = { nil, nil, CHANRCV },
[Cnum] = { nil, nil, CHANEND },
};
debug = 0;
audio = nil;
ARGBEGIN{
case 'a':
if(audio != nil){
fprint(2, "only one audio file can be specified\n");
usage();
}
audio = EARGF(usage());
break;
case 'D':
framedrop++;
break;
case 'd':
debug++;
break;
}ARGEND
if(argc < 1)
usage();
nproc = atoi((s = getenv("NPROC")) != nil ? s : "1");
if(nproc < 1)
nproc = 1;
else if(nproc > 4)
nproc = 4;
srand(nanosec());
if(initdraw(nil, nil, "treason") < 0)
sysfatal("initdraw: %r");
flushimage(display, 1);
display->locking = 1;
unlockdisplay(display);
if((mctl = initmouse(nil, screen)) == nil)
sysfatal("initmouse: %r");
if((kctl = initkeyboard(nil)) == nil)
sysfatal("initkeyboard: %r");
a[Cmouse].c = mctl->c;
a[Cresize].c = mctl->resizec;
a[Ckeyboard].c = kctl->c;
saudio = nil;
if(audio != nil)
saudio = Sopen(audio, &nstreams);
for(end = i = 0; !end && i < argc; i++){
draw(screen, screen->r, display->black, nil, ZP);
if((stream = Sopen(argv[i], &nstreams)) == nil)
sysfatal("%r");
svideo = nil;
for(j = 0; j < nstreams; j++){
if(stream[j].type == Svideo && svideo == nil)
svideo = stream+j;
else if(stream[j].type == Saudio && saudio == nil)
saudio = stream+j;
else
Sclose(stream+j);
}
if(svideo == nil)
sysfatal("%s: no video", argv[i]);
if((d = Dopen(svideo)) == nil)
sysfatal("%r");
a[Cframe].c = d->frames;
a[Cplayerdone].c = d->finished;
lastframe = 0;
if(saudio != nil){
audiosync = chancreate(sizeof(void*), 1);
audiofinished = chancreate(sizeof(void*), 0);
proccreate(audioproc, saudio, 4096);
}else{
audiosync = nil;
audiofinished = nil;
}
for(done = forced = 0; !done && !end;){
res = alt(a);
switch(res){
case Cframe:
snprint(info, sizeof(info), "%zdms %dx%d %s %s ", delay/1000000ULL, frame->w, frame->h, d->info, d->s->info);
drawframe(frame);
break;
case Cplayerdone:
done = 1;
if(status != nil)
forced = 1;
break;
case Cmouse:
break;
case Ckeyboard:
end = key == 'q' || key == Kdel;
done = key == '\n';
showinfo = key == 'i' ? !showinfo : showinfo;
forced = 1;
break;
case Cresize:
lockdisplay(display);
if(getwindow(display, Refnone) < 0)
sysfatal("getwindow: %r");
freeimage(curim);
curim = nil;
draw(screen, screen->r, display->black, nil, ZP);
flushimage(display, 1);
unlockdisplay(display);
break;
}
for(; !end && audiofd >= 0 && saudio != nil;){
if(Sread(saudio, &f) != 0 || f.sz == 0)
break;
write(audiofd, f.buf, f.sz);
}
}
if(forced && saudio != nil){
Sclose(saudio);
chanclose(audiosync);
}
if(audiofinished != nil){
recvp(audiofinished);
chanclose(audiofinished);
audiofinished = nil;
}
if(!forced)
Sclose(saudio);
saudio = nil;
Dclose(d);
for(i = 0; i < nstreams; i++)
Sclose(stream+i);
free(stream);
}
threadexitsall(nil);
}