uint8_t tsHeader::getFrame(uint32_t frame,ADMCompressedImage *img)
{
if(frame>=ListOfFrames.size()) return 0;
dmxFrame *pk=ListOfFrames[frame];
// next frame
if(frame==(lastFrame+1) && pk->type!=1)
{
lastFrame++;
bool r=tsPacket->read(pk->len,img->data);
img->dataLength=pk->len;
img->demuxerFrameNo=frame;
img->demuxerDts=pk->dts;
img->demuxerPts=pk->pts;
//printf("[>>>] %d:%02x %02x %02x %02x\n",frame,img->data[0],img->data[1],img->data[2],img->data[3]);
getFlags(frame,&(img->flags));
UNESCAPE();
return r;
}
// Intra ?
if(pk->type==1 || pk->type==4)
{
if(!tsPacket->seek(pk->startAt,pk->index)) return false;
bool r=tsPacket->read(pk->len,img->data);
img->dataLength=pk->len;
img->demuxerFrameNo=frame;
img->demuxerDts=pk->dts;
img->demuxerPts=pk->pts;
getFlags(frame,&(img->flags));
//printf("[>>>] %d:%02x %02x %02x %02x\n",frame,img->data[0],img->data[1],img->data[2],img->data[3]);
lastFrame=frame;
UNESCAPE();
return r;
}
// Random frame
// Need to rewind, then forward
int startPoint=frame;
while(startPoint && !ListOfFrames[startPoint]->startAt) startPoint--;
printf("[tsDemux] Wanted frame %"PRIu32", going back to frame %"PRIu32", last frame was %"PRIu32",\n",frame,startPoint,lastFrame);
pk=ListOfFrames[startPoint];
if(!tsPacket->seek(pk->startAt,pk->index))
{
printf("[tsDemux] Failed to rewind to frame %"PRIu32"\n",startPoint);
return false;
}
// Now forward
while(startPoint<frame)
{
pk=ListOfFrames[startPoint];
if(!tsPacket->read(pk->len,img->data))
{
printf("[tsDemux] Read fail for frame %"PRIu32"\n",startPoint);
lastFrame=0xffffffff;
return false;
}
startPoint++;
lastFrame=startPoint;
}
pk=ListOfFrames[frame];
lastFrame++;
bool r=tsPacket->read(pk->len,img->data);
img->dataLength=pk->len;
img->demuxerFrameNo=frame;
img->demuxerDts=pk->dts;
img->demuxerPts=pk->pts;
//printf("[>>>] %d:%02x %02x %02x %02x\n",frame,img->data[0],img->data[1],img->data[2],img->data[3]);
getFlags(frame,&(img->flags));
UNESCAPE();
return r;
}
static int
fnmatch_helper(
const char **pcur, /* pattern */
const char **scur, /* string */
int flags)
{
const int period = !(flags & FNM_DOTMATCH);
const int pathname = flags & FNM_PATHNAME;
const int escape = !(flags & FNM_NOESCAPE);
const int nocase = flags & FNM_CASEFOLD;
const char *ptmp = 0;
const char *stmp = 0;
const char *p = *pcur;
const char *s = *scur;
if (period && *s == '.' && *UNESCAPE(p) != '.') /* leading period */
RETURN(FNM_NOMATCH);
while (1) {
switch (*p) {
case '*':
do { p++; } while (*p == '*');
if (ISEND(UNESCAPE(p))) {
p = UNESCAPE(p);
RETURN(0);
}
if (ISEND(s))
RETURN(FNM_NOMATCH);
ptmp = p;
stmp = s;
continue;
case '?':
if (ISEND(s))
RETURN(FNM_NOMATCH);
p++;
Inc(s);
continue;
case '[': {
const char *t;
if (ISEND(s))
RETURN(FNM_NOMATCH);
if ((t = bracket(p + 1, s, flags)) != 0) {
p = t;
Inc(s);
continue;
}
goto failed;
}
}
/* ordinary */
p = UNESCAPE(p);
if (ISEND(s))
RETURN(ISEND(p) ? 0 : FNM_NOMATCH);
if (ISEND(p))
goto failed;
if (Compare(p, s) != 0)
goto failed;
Inc(p);
Inc(s);
continue;
failed: /* try next '*' position */
if (ptmp && stmp) {
p = ptmp;
Inc(stmp); /* !ISEND(*stmp) */
s = stmp;
continue;
}
RETURN(FNM_NOMATCH);
}
}
