static void movieclip_calc_length(MovieClip *clip)
{
if (clip->source == MCLIP_SRC_MOVIE) {
movieclip_open_anim_file(clip);
if (clip->anim) {
clip->len = IMB_anim_get_duration(clip->anim, clip->proxy.tc);
}
}
else if (clip->source == MCLIP_SRC_SEQUENCE) {
unsigned short numlen;
char name[FILE_MAX], head[FILE_MAX], tail[FILE_MAX];
BLI_stringdec(clip->name, head, tail, &numlen);
if (numlen == 0) {
/* there's no number group in file name, assume it's single framed sequence */
clip->len = 1;
}
else {
clip->len = 0;
for (;;) {
get_sequence_fname(clip, clip->len + clip->start_frame, name);
if (BLI_exists(name))
clip->len++;
else
break;
}
}
}
}
static int user_frame_to_cache_frame(MovieClip *clip, int framenr)
{
int index;
index = framenr - clip->start_frame + clip->frame_offset;
if (clip->source == MCLIP_SRC_SEQUENCE) {
if (clip->cache->sequence_offset == -1) {
unsigned short numlen;
char head[FILE_MAX], tail[FILE_MAX];
BLI_stringdec(clip->name, head, tail, &numlen);
/* see comment in get_sequence_fname */
clip->cache->sequence_offset = sequence_guess_offset(clip->name, strlen(head), numlen);
}
index += clip->cache->sequence_offset;
}
if (index < 0)
return framenr - index;
return framenr;
}
static void get_sequence_fname(MovieClip *clip, int framenr, char *name)
{
unsigned short numlen;
char head[FILE_MAX], tail[FILE_MAX];
int offset;
BLI_strncpy(name, clip->name, sizeof(clip->name));
BLI_stringdec(name, head, tail, &numlen);
/* movieclips always points to first image from sequence,
* autoguess offset for now. could be something smarter in the future */
offset = sequence_guess_offset(clip->name, strlen(head), numlen);
if (numlen)
BLI_stringenc(name, head, tail, numlen, offset + framenr - 1);
else
BLI_strncpy(name, clip->name, sizeof(clip->name));
BLI_path_abs(name, ID_BLEND_PATH(G.main, &clip->id));
}
void BLI_newname(char *name, int add)
{
char head[UNIQUE_NAME_MAX], tail[UNIQUE_NAME_MAX];
int pic;
unsigned short digits;
pic = BLI_stringdec(name, head, tail, &digits);
/* are we going from 100 -> 99 or from 10 -> 9 */
if (add < 0 && digits < 4 && digits > 0) {
int i, exp;
exp = 1;
for (i = digits; i > 1; i--) exp *= 10;
if (pic >= exp && (pic + add) < exp) digits--;
}
pic += add;
if (digits == 4 && pic < 0) pic = 0;
BLI_stringenc(name, head, tail, digits, pic);
}
