Lines Matching defs:band
276 reslevel->band = av_mallocz_array(reslevel->nbands, sizeof(*reslevel->band));
277 if (!reslevel->band)
281 Jpeg2000Band *band = reslevel->band + bandno;
292 band->f_stepsize = 1;
298 band->f_stepsize = SHL(2048 + qntsty->mant[gbandno],
311 band->f_stepsize = pow(2.0, gain - qntsty->expn[gbandno]);
312 band->f_stepsize *= qntsty->mant[gbandno] / 2048.0 + 1.0;
315 band->f_stepsize = 0;
322 band->f_stepsize *= 0.5;
324 band->i_stepsize = band->f_stepsize * (1 << 15);
331 /* for reslevelno = 0, only one band, x0_b = y0_b = 0 */
334 band->coord[i][j] =
340 band->log2_cblk_width = FFMIN(codsty->log2_cblk_width,
342 band->log2_cblk_height = FFMIN(codsty->log2_cblk_height,
350 band->coord[i][j] =
354 /* TODO: Manage case of 3 band offsets here or
358 band->log2_cblk_width = FFMIN(codsty->log2_cblk_width,
360 band->log2_cblk_height = FFMIN(codsty->log2_cblk_height,
368 band->coord[0][j] = ff_jpeg2000_ceildiv(band->coord[0][j], dx);
370 band->coord[1][j] = ff_jpeg2000_ceildiv(band->coord[1][j], dy);
372 band->prec = av_mallocz_array(reslevel->num_precincts_x *
374 sizeof(*band->prec));
375 if (!band->prec)
381 Jpeg2000Prec *prec = band->prec + precno;
384 /* TODO: Verify with previous count of codeblocks per band */
389 prec->coord[0][0] = FFMAX(prec->coord[0][0], band->coord[0][0]);
394 prec->coord[1][0] = FFMAX(prec->coord[1][0], band->coord[1][0]);
399 prec->coord[0][1] = FFMIN(prec->coord[0][1], band->coord[0][1]);
404 prec->coord[1][1] = FFMIN(prec->coord[1][1], band->coord[1][1]);
409 band->log2_cblk_width);
413 band->log2_cblk_height);
439 Cx0 = (prec->coord[0][0] >> band->log2_cblk_width) << band->log2_cblk_width;
440 Cx0 = Cx0 + ((cblkno % prec->nb_codeblocks_width) << band->log2_cblk_width);
444 Cy0 = (prec->coord[1][0] >> band->log2_cblk_height) << band->log2_cblk_height;
445 Cy0 = Cy0 + ((cblkno / prec->nb_codeblocks_width) << band->log2_cblk_height);
449 cblk->coord[0][1] = FFMIN(Cx0 + (1 << band->log2_cblk_width),
453 cblk->coord[1][1] = FFMIN(Cy0 + (1 << band->log2_cblk_height),
455 /* Update code-blocks coordinates according sub-band position */
487 Jpeg2000Band *band = rlevel->band + bandno;
489 Jpeg2000Prec *prec = band->prec + precno;
515 Jpeg2000Band *band;
517 if (!reslevel->band)
520 band = reslevel->band + bandno;
522 if (band->prec) {
523 Jpeg2000Prec *prec = band->prec + precno;
530 av_freep(&band->prec);
532 av_freep(&reslevel->band);