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-rw-r--r--libavcodec/Makefile2
-rw-r--r--libavcodec/allcodecs.c1
-rw-r--r--libavcodec/avcodec.h6
-rw-r--r--libavcodec/jpeg2000.c478
-rw-r--r--libavcodec/jpeg2000.h268
-rw-r--r--libavcodec/jpeg2000dec.c1336
-rw-r--r--libavcodec/jpeg2000dwt.c371
-rw-r--r--libavcodec/jpeg2000dwt.h64
-rw-r--r--libavcodec/mqc.c136
-rw-r--r--libavcodec/mqc.h30
-rw-r--r--libavcodec/mqcdec.c22
-rw-r--r--libavcodec/version.h2
-rw-r--r--tests/fate/video.mak3
-rw-r--r--tests/ref/fate/jpeg2000-dcinema3
14 files changed, 2635 insertions, 87 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 8ffb44eccf..6f986498a7 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -244,6 +244,8 @@ OBJS-$(CONFIG_INTERPLAY_VIDEO_DECODER) += interplayvideo.o
OBJS-$(CONFIG_JACOSUB_DECODER) += jacosubdec.o ass.o
OBJS-$(CONFIG_J2K_DECODER) += j2kdec.o mqcdec.o mqc.o j2k.o j2k_dwt.o
OBJS-$(CONFIG_J2K_ENCODER) += j2kenc.o mqcenc.o mqc.o j2k.o j2k_dwt.o
+OBJS-$(CONFIG_JPEG2000_DECODER) += jpeg2000dec.o jpeg2000.o \
+ jpeg2000dwt.o mqcdec.o mqc.o
OBJS-$(CONFIG_JPEGLS_DECODER) += jpeglsdec.o jpegls.o \
mjpegdec.o mjpeg.o
OBJS-$(CONFIG_JPEGLS_ENCODER) += jpeglsenc.o jpegls.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index cb7fc3b7d0..d5b69164e6 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -172,6 +172,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(INDEO5, indeo5);
REGISTER_DECODER(INTERPLAY_VIDEO, interplay_video);
REGISTER_ENCDEC (J2K, j2k);
+ REGISTER_DECODER(JPEG2000, jpeg2000);
REGISTER_ENCDEC (JPEGLS, jpegls);
REGISTER_DECODER(JV, jv);
REGISTER_DECODER(KGV1, kgv1);
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index aba3aea0c1..e5b0c2b176 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2719,6 +2719,12 @@ typedef struct AVCodecContext {
#define FF_PROFILE_MPEG4_SIMPLE_STUDIO 14
#define FF_PROFILE_MPEG4_ADVANCED_SIMPLE 15
+#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0 0
+#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1 1
+#define FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION 2
+#define FF_PROFILE_JPEG2000_DCINEMA_2K 3
+#define FF_PROFILE_JPEG2000_DCINEMA_4K 4
+
/**
* level
* - encoding: Set by user.
diff --git a/libavcodec/jpeg2000.c b/libavcodec/jpeg2000.c
new file mode 100644
index 0000000000..060b1fd55d
--- /dev/null
+++ b/libavcodec/jpeg2000.c
@@ -0,0 +1,478 @@
+/*
+ * JPEG 2000 encoder and decoder common functions
+ * Copyright (c) 2007 Kamil Nowosad
+ * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * JPEG 2000 image encoder and decoder common functions
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/mem.h"
+#include "avcodec.h"
+#include "jpeg2000.h"
+
+#define SHL(a, n) ((n) >= 0 ? (a) << (n) : (a) >> -(n))
+
+/* tag tree routines */
+
+/* allocate the memory for tag tree */
+static int32_t tag_tree_size(uint16_t w, uint16_t h)
+{
+ uint32_t res = 0;
+ while (w > 1 || h > 1) {
+ res += w * h;
+ if (res + 1 >= INT32_MAX)
+ return -1;
+ w = (w + 1) >> 1;
+ h = (h + 1) >> 1;
+ }
+ return (int32_t)(res + 1);
+}
+
+static Jpeg2000TgtNode *ff_jpeg2000_tag_tree_init(int w, int h)
+{
+ int pw = w, ph = h;
+ Jpeg2000TgtNode *res, *t, *t2;
+ int32_t tt_size;
+
+ tt_size = tag_tree_size(w, h);
+ if (tt_size == -1)
+ return NULL;
+
+ t = res = av_mallocz_array(tt_size, sizeof(*t));
+ if (!res)
+ return NULL;
+
+ while (w > 1 || h > 1) {
+ int i, j;
+ pw = w;
+ ph = h;
+
+ w = (w + 1) >> 1;
+ h = (h + 1) >> 1;
+ t2 = t + pw * ph;
+
+ for (i = 0; i < ph; i++)
+ for (j = 0; j < pw; j++)
+ t[i * pw + j].parent = &t2[(i >> 1) * w + (j >> 1)];
+
+ t = t2;
+ }
+ t[0].parent = NULL;
+ return res;
+}
+
+uint8_t ff_jpeg2000_sigctxno_lut[256][4];
+
+static int getsigctxno(int flag, int bandno)
+{
+ int h, v, d;
+
+ h = ((flag & JPEG2000_T1_SIG_E) ? 1 : 0) +
+ ((flag & JPEG2000_T1_SIG_W) ? 1 : 0);
+ v = ((flag & JPEG2000_T1_SIG_N) ? 1 : 0) +
+ ((flag & JPEG2000_T1_SIG_S) ? 1 : 0);
+ d = ((flag & JPEG2000_T1_SIG_NE) ? 1 : 0) +
+ ((flag & JPEG2000_T1_SIG_NW) ? 1 : 0) +
+ ((flag & JPEG2000_T1_SIG_SE) ? 1 : 0) +
+ ((flag & JPEG2000_T1_SIG_SW) ? 1 : 0);
+ if (bandno < 3) {
+ if (bandno == 1)
+ FFSWAP(int, h, v);
+ if (h == 2)
+ return 8;
+ if (h == 1) {
+ if (v >= 1)
+ return 7;
+ if (d >= 1)
+ return 6;
+ return 5;
+ }
+ if (v == 2)
+ return 4;
+ if (v == 1)
+ return 3;
+ if (d >= 2)
+ return 2;
+ if (d == 1)
+ return 1;
+ return 0;
+ } else {
+ if (d >= 3)
+ return 8;
+ if (d == 2) {
+ if (h + v >= 1)
+ return 7;
+ return 6;
+ }
+ if (d == 1) {
+ if (h + v >= 2)
+ return 5;
+ if (h + v == 1)
+ return 4;
+ return 3;
+ }
+ if (h + v >= 2)
+ return 2;
+ if (h + v == 1)
+ return 1;
+ return 0;
+ }
+ return 0;
+}
+
+uint8_t ff_jpeg2000_sgnctxno_lut[16][16], ff_jpeg2000_xorbit_lut[16][16];
+
+static const int contribtab[3][3] = { { 0, -1, 1 }, { -1, -1, 0 }, { 1, 0, 1 } };
+static const int ctxlbltab[3][3] = { { 13, 12, 11 }, { 10, 9, 10 }, { 11, 12, 13 } };
+static const int xorbittab[3][3] = { { 1, 1, 1 }, { 1, 0, 0 }, { 0, 0, 0 } };
+
+static int getsgnctxno(int flag, uint8_t *xorbit)
+{
+ int vcontrib, hcontrib;
+
+ hcontrib = contribtab[flag & JPEG2000_T1_SIG_E ? flag & JPEG2000_T1_SGN_E ? 1 : 2 : 0]
+ [flag & JPEG2000_T1_SIG_W ? flag & JPEG2000_T1_SGN_W ? 1 : 2 : 0] + 1;
+ vcontrib = contribtab[flag & JPEG2000_T1_SIG_S ? flag & JPEG2000_T1_SGN_S ? 1 : 2 : 0]
+ [flag & JPEG2000_T1_SIG_N ? flag & JPEG2000_T1_SGN_N ? 1 : 2 : 0] + 1;
+ *xorbit = xorbittab[hcontrib][vcontrib];
+
+ return ctxlbltab[hcontrib][vcontrib];
+}
+
+void ff_jpeg2000_init_tier1_luts(void)
+{
+ int i, j;
+ for (i = 0; i < 256; i++)
+ for (j = 0; j < 4; j++)
+ ff_jpeg2000_sigctxno_lut[i][j] = getsigctxno(i, j);
+ for (i = 0; i < 16; i++)
+ for (j = 0; j < 16; j++)
+ ff_jpeg2000_sgnctxno_lut[i][j] =
+ getsgnctxno(i + (j << 8), &ff_jpeg2000_xorbit_lut[i][j]);
+}
+
+void ff_jpeg2000_set_significance(Jpeg2000T1Context *t1, int x, int y,
+ int negative)
+{
+ x++;
+ y++;
+ t1->flags[y][x] |= JPEG2000_T1_SIG;
+ if (negative) {
+ t1->flags[y][x + 1] |= JPEG2000_T1_SIG_W | JPEG2000_T1_SGN_W;
+ t1->flags[y][x - 1] |= JPEG2000_T1_SIG_E | JPEG2000_T1_SGN_E;
+ t1->flags[y + 1][x] |= JPEG2000_T1_SIG_N | JPEG2000_T1_SGN_N;
+ t1->flags[y - 1][x] |= JPEG2000_T1_SIG_S | JPEG2000_T1_SGN_S;
+ } else {
+ t1->flags[y][x + 1] |= JPEG2000_T1_SIG_W;
+ t1->flags[y][x - 1] |= JPEG2000_T1_SIG_E;
+ t1->flags[y + 1][x] |= JPEG2000_T1_SIG_N;
+ t1->flags[y - 1][x] |= JPEG2000_T1_SIG_S;
+ }
+ t1->flags[y + 1][x + 1] |= JPEG2000_T1_SIG_NW;
+ t1->flags[y + 1][x - 1] |= JPEG2000_T1_SIG_NE;
+ t1->flags[y - 1][x + 1] |= JPEG2000_T1_SIG_SW;
+ t1->flags[y - 1][x - 1] |= JPEG2000_T1_SIG_SE;
+}
+
+static const uint8_t lut_gain[2][4] = { { 0, 0, 0, 0 }, { 0, 1, 1, 2 } };
+
+int ff_jpeg2000_init_component(Jpeg2000Component *comp,
+ Jpeg2000CodingStyle *codsty,
+ Jpeg2000QuantStyle *qntsty,
+ int cbps, int dx, int dy,
+ AVCodecContext *avctx)
+{
+ uint8_t log2_band_prec_width, log2_band_prec_height;
+ int reslevelno, bandno, gbandno = 0, ret, i, j;
+ uint32_t csize = 1;
+
+ if (ret = ff_jpeg2000_dwt_init(&comp->dwt, comp->coord,
+ codsty->nreslevels2decode - 1,
+ codsty->transform))
+ return ret;
+ // component size comp->coord is uint16_t so ir cannot overflow
+ csize = (comp->coord[0][1] - comp->coord[0][0]) *
+ (comp->coord[1][1] - comp->coord[1][0]);
+
+ comp->data = av_malloc_array(csize, sizeof(*comp->data));
+ if (!comp->data)
+ return AVERROR(ENOMEM);
+ comp->reslevel = av_malloc_array(codsty->nreslevels, sizeof(*comp->reslevel));
+ if (!comp->reslevel)
+ return AVERROR(ENOMEM);
+ /* LOOP on resolution levels */
+ for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
+ int declvl = codsty->nreslevels - reslevelno; // N_L -r see ISO/IEC 15444-1:2002 B.5
+ Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
+
+ /* Compute borders for each resolution level.
+ * Computation of trx_0, trx_1, try_0 and try_1.
+ * see ISO/IEC 15444-1:2002 eq. B.5 and B-14 */
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 2; j++)
+ reslevel->coord[i][j] =
+ ff_jpeg2000_ceildivpow2(comp->coord_o[i][j], declvl - 1);
+ // update precincts size: 2^n value
+ reslevel->log2_prec_width = codsty->log2_prec_widths[reslevelno];
+ reslevel->log2_prec_height = codsty->log2_prec_heights[reslevelno];
+
+ /* Number of bands for each resolution level */
+ if (reslevelno == 0)
+ reslevel->nbands = 1;
+ else
+ reslevel->nbands = 3;
+
+ /* Number of precincts wich span the tile for resolution level reslevelno
+ * see B.6 in ISO/IEC 15444-1:2002 eq. B-16
+ * num_precincts_x = |- trx_1 / 2 ^ log2_prec_width) -| - (trx_0 / 2 ^ log2_prec_width)
+ * num_precincts_y = |- try_1 / 2 ^ log2_prec_width) -| - (try_0 / 2 ^ log2_prec_width)
+ * for Dcinema profiles in JPEG 2000
+ * num_precincts_x = |- trx_1 / 2 ^ log2_prec_width) -|
+ * num_precincts_y = |- try_1 / 2 ^ log2_prec_width) -| */
+ if (reslevel->coord[0][1] == reslevel->coord[0][0])
+ reslevel->num_precincts_x = 0;
+ else
+ reslevel->num_precincts_x =
+ ff_jpeg2000_ceildivpow2(reslevel->coord[0][1],
+ reslevel->log2_prec_width) -
+ (reslevel->coord[0][0] >> reslevel->log2_prec_width);
+
+ if (reslevel->coord[1][1] == reslevel->coord[1][0])
+ reslevel->num_precincts_y = 0;
+ else
+ reslevel->num_precincts_y =
+ ff_jpeg2000_ceildivpow2(reslevel->coord[1][1],
+ reslevel->log2_prec_height) -
+ (reslevel->coord[1][0] >> reslevel->log2_prec_height);
+
+ reslevel->band = av_malloc_array(reslevel->nbands, sizeof(*reslevel->band));
+ if (!reslevel->band)
+ return AVERROR(ENOMEM);
+
+ for (bandno = 0; bandno < reslevel->nbands; bandno++, gbandno++) {
+ Jpeg2000Band *band = reslevel->band + bandno;
+ int cblkno, precno;
+ int nb_precincts;
+
+ /* TODO: Implementation of quantization step not finished,
+ * see ISO/IEC 15444-1:2002 E.1 and A.6.4. */
+ switch (qntsty->quantsty) {
+ uint8_t gain;
+ int numbps;
+ case JPEG2000_QSTY_NONE:
+ /* TODO: to verify. No quantization in this case */
+ numbps = cbps +
+ lut_gain[codsty->transform][bandno + reslevelno > 0];
+ band->stepsize = (float)SHL(2048 + qntsty->mant[gbandno],
+ 2 + numbps - qntsty->expn[gbandno]);
+ break;
+ case JPEG2000_QSTY_SI:
+ /*TODO: Compute formula to implement. */
+ band->stepsize = (float) (1 << 13);
+ break;
+ case JPEG2000_QSTY_SE:
+ /* Exponent quantization step.
+ * Formula:
+ * delta_b = 2 ^ (R_b - expn_b) * (1 + (mant_b / 2 ^ 11))
+ * R_b = R_I + log2 (gain_b )
+ * see ISO/IEC 15444-1:2002 E.1.1 eqn. E-3 and E-4 */
+ /* TODO/WARN: value of log2 (gain_b ) not taken into account
+ * but it works (compared to OpenJPEG). Why?
+ * Further investigation needed. */
+ gain = cbps;
+ band->stepsize = pow(2.0, gain - qntsty->expn[gbandno]);
+ band->stepsize *= (float)qntsty->mant[gbandno] / 2048.0 + 1.0;
+ /* FIXME: In openjepg code stespize = stepsize * 0.5. Why?
+ * If not set output of entropic decoder is not correct. */
+ band->stepsize *= 0.5;
+ break;
+ default:
+ band->stepsize = 0;
+ av_log(avctx, AV_LOG_ERROR, "Unknown quantization format\n");
+ break;
+ }
+ /* BITEXACT computing case --> convert to int */
+ if (avctx->flags & CODEC_FLAG_BITEXACT)
+ band->stepsize = (int32_t)(band->stepsize * (1 << 16));
+
+ /* computation of tbx_0, tbx_1, tby_0, tby_1
+ * see ISO/IEC 15444-1:2002 B.5 eq. B-15 and tbl B.1
+ * codeblock width and height is computed for
+ * DCI JPEG 2000 codeblock_width = codeblock_width = 32 = 2 ^ 5 */
+ if (reslevelno == 0) {
+ /* for reslevelno = 0, only one band, x0_b = y0_b = 0 */
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 2; j++)
+ band->coord[i][j] =
+ ff_jpeg2000_ceildivpow2(comp->coord_o[i][j],
+ declvl - 1);
+
+ log2_band_prec_width = reslevel->log2_prec_width;
+ log2_band_prec_height = reslevel->log2_prec_height;
+ /* see ISO/IEC 15444-1:2002 eq. B-17 and eq. B-15 */
+ band->log2_cblk_width = FFMIN(codsty->log2_cblk_width,
+ reslevel->log2_prec_width);
+ band->log2_cblk_height = FFMIN(codsty->log2_cblk_height,
+ reslevel->log2_prec_height);
+ } else {
+ /* 3 bands x0_b = 1 y0_b = 0; x0_b = 0 y0_b = 1; x0_b = y0_b = 1 */
+ /* x0_b and y0_b are computed with ((bandno + 1 >> i) & 1) */
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 2; j++)
+ /* Formula example for tbx_0 = ceildiv((tcx_0 - 2 ^ (declvl - 1) * x0_b) / declvl) */
+ band->coord[i][j] =
+ ff_jpeg2000_ceildivpow2(comp->coord_o[i][j] -
+ (((bandno + 1 >> i) & 1) << declvl - 1),
+ declvl);
+ /* TODO: Manage case of 3 band offsets here or
+ * in coding/decoding function? */
+
+ /* see ISO/IEC 15444-1:2002 eq. B-17 and eq. B-15 */
+ band->log2_cblk_width = FFMIN(codsty->log2_cblk_width,
+ reslevel->log2_prec_width - 1);
+ band->log2_cblk_height = FFMIN(codsty->log2_cblk_height,
+ reslevel->log2_prec_height - 1);
+
+ log2_band_prec_width = reslevel->log2_prec_width - 1;
+ log2_band_prec_height = reslevel->log2_prec_height - 1;
+ }
+
+ band->prec = av_malloc_array(reslevel->num_precincts_x *
+ reslevel->num_precincts_y,
+ sizeof(*band->prec));
+ if (!band->prec)
+ return AVERROR(ENOMEM);
+
+ nb_precincts = reslevel->num_precincts_x * reslevel->num_precincts_y;
+
+ for (precno = 0; precno < nb_precincts; precno++) {
+ Jpeg2000Prec *prec = band->prec + precno;
+
+ /* TODO: Explain formula for JPEG200 DCINEMA. */
+ /* TODO: Verify with previous count of codeblocks per band */
+
+ /* Compute P_x0 */
+ prec->coord[0][0] = (precno % reslevel->num_precincts_x) *
+ (1 << log2_band_prec_width);
+ prec->coord[0][0] = FFMAX(prec->coord[0][0], band->coord[0][0]);
+
+ /* Compute P_y0 */
+ prec->coord[1][0] = (precno / reslevel->num_precincts_x) *
+ (1 << log2_band_prec_height);
+ prec->coord[1][0] = FFMAX(prec->coord[1][0], band->coord[1][0]);
+
+ /* Compute P_x1 */
+ prec->coord[0][1] = prec->coord[0][0] +
+ (1 << log2_band_prec_width);
+ prec->coord[0][1] = FFMIN(prec->coord[0][1], band->coord[0][1]);
+
+ /* Compute P_y1 */
+ prec->coord[1][1] = prec->coord[1][0] +
+ (1 << log2_band_prec_height);
+ prec->coord[1][1] = FFMIN(prec->coord[1][1], band->coord[1][1]);
+
+ prec->nb_codeblocks_width =
+ ff_jpeg2000_ceildivpow2(prec->coord[0][1] -
+ prec->coord[0][0],
+ band->log2_cblk_width);
+ prec->nb_codeblocks_height =
+ ff_jpeg2000_ceildivpow2(prec->coord[1][1] -
+ prec->coord[1][0],
+ band->log2_cblk_height);
+
+ /* Tag trees initialization */
+ prec->cblkincl =
+ ff_jpeg2000_tag_tree_init(prec->nb_codeblocks_width,
+ prec->nb_codeblocks_height);
+ if (!prec->cblkincl)
+ return AVERROR(ENOMEM);
+
+ prec->zerobits =
+ ff_jpeg2000_tag_tree_init(prec->nb_codeblocks_width,
+ prec->nb_codeblocks_height);
+ if (!prec->zerobits)
+ return AVERROR(ENOMEM);
+
+ prec->cblk = av_malloc_array(prec->nb_codeblocks_width *
+ prec->nb_codeblocks_height,
+ sizeof(*prec->cblk));
+ if (!prec->cblk)
+ return AVERROR(ENOMEM);
+ for (cblkno = 0; cblkno < prec->nb_codeblocks_width * prec->nb_codeblocks_height; cblkno++) {
+ Jpeg2000Cblk *cblk = prec->cblk + cblkno;
+ uint16_t Cx0, Cy0;
+
+ /* Compute coordinates of codeblocks */
+ /* Compute Cx0*/
+ Cx0 = (prec->coord[0][0] >> band->log2_cblk_width) << band->log2_cblk_width;
+ Cx0 = Cx0 + ((cblkno % prec->nb_codeblocks_width) << band->log2_cblk_width);
+ cblk->coord[0][0] = FFMAX(Cx0, prec->coord[0][0]);
+
+ /* Compute Cy0*/
+ Cy0 = (prec->coord[1][0] >> band->log2_cblk_height) << band->log2_cblk_height;
+ Cy0 = Cy0 + ((cblkno / prec->nb_codeblocks_width) << band->log2_cblk_height);
+ cblk->coord[1][0] = FFMAX(Cy0, prec->coord[1][0]);
+
+ /* Compute Cx1 */
+ cblk->coord[0][1] = FFMIN(Cx0 + (1 << band->log2_cblk_width),
+ prec->coord[0][1]);
+
+ /* Compute Cy1 */
+ cblk->coord[1][1] = FFMIN(Cy0 + (1 << band->log2_cblk_height),
+ prec->coord[1][1]);
+ cblk->zero = 0;
+ cblk->lblock = 3;
+ cblk->length = 0;
+ cblk->lengthinc = 0;
+ cblk->npasses = 0;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+void ff_jpeg2000_cleanup(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty)
+{
+ int reslevelno, bandno, precno;
+ for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
+ Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
+
+ for (bandno = 0; bandno < reslevel->nbands; bandno++) {
+ Jpeg2000Band *band = reslevel->band + bandno;
+ for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++) {
+ Jpeg2000Prec *prec = band->prec + precno;
+ av_freep(&prec->zerobits);
+ av_freep(&prec->cblkincl);
+ av_freep(&prec->cblk);
+ }
+
+ av_freep(&band->prec);
+ }
+ av_freep(&reslevel->band);
+ }
+
+ ff_dwt_destroy(&comp->dwt);
+ av_freep(&comp->reslevel);
+ av_freep(&comp->data);
+}
diff --git a/libavcodec/jpeg2000.h b/libavcodec/jpeg2000.h
new file mode 100644
index 0000000000..c2d6d90789
--- /dev/null
+++ b/libavcodec/jpeg2000.h
@@ -0,0 +1,268 @@
+/*
+ * JPEG 2000 common defines, structures and functions
+ * Copyright (c) 2007 Kamil Nowosad
+ * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_JPEG2000_H
+#define AVCODEC_JPEG2000_H
+
+/**
+ * @file
+ * JPEG 2000 structures and defines common
+ * to encoder and decoder
+ */
+
+#include <stdint.h>
+
+#include "avcodec.h"
+#include "mqc.h"
+#include "jpeg2000dwt.h"
+
+enum Jpeg2000Markers {
+ JPEG2000_SOC = 0xff4f, // start of codestream
+ JPEG2000_SIZ = 0xff51, // image and tile size
+ JPEG2000_COD, // coding style default
+ JPEG2000_COC, // coding style component
+ JPEG2000_TLM = 0xff55, // packed packet headers, tile-part header
+ JPEG2000_PLM = 0xff57, // tile-part lengths
+ JPEG2000_PLT, // packet length, main header
+ JPEG2000_QCD = 0xff5c, // quantization default
+ JPEG2000_QCC, // quantization component
+ JPEG2000_RGN, // region of interest
+ JPEG2000_POC, // progression order change
+ JPEG2000_PPM, // packet length, tile-part header
+ JPEG2000_PPT, // packed packet headers, main header
+ JPEG2000_CRG = 0xff63, // component registration
+ JPEG2000_COM, // comment
+ JPEG2000_SOT = 0xff90, // start of tile-part
+ JPEG2000_SOP, // start of packet
+ JPEG2000_EPH, // end of packet header
+ JPEG2000_SOD, // start of data
+ JPEG2000_EOC = 0xffd9, // end of codestream
+};
+
+enum Jpeg2000Quantsty { // quantization style
+ JPEG2000_QSTY_NONE, // no quantization
+ JPEG2000_QSTY_SI, // scalar derived
+ JPEG2000_QSTY_SE // scalar expounded
+};
+
+#define JPEG2000_MAX_CBLKW 64
+#define JPEG2000_MAX_CBLKH 64
+
+#define JPEG2000_MAX_RESLEVELS 33
+
+// T1 flags
+// flags determining significance of neighbor coefficients
+#define JPEG2000_T1_SIG_N 0x0001
+#define JPEG2000_T1_SIG_E 0x0002
+#define JPEG2000_T1_SIG_W 0x0004
+#define JPEG2000_T1_SIG_S 0x0008
+#define JPEG2000_T1_SIG_NE 0x0010
+#define JPEG2000_T1_SIG_NW 0x0020
+#define JPEG2000_T1_SIG_SE 0x0040
+#define JPEG2000_T1_SIG_SW 0x0080
+#define JPEG2000_T1_SIG_NB (JPEG2000_T1_SIG_N | JPEG2000_T1_SIG_E | \
+ JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_W | \
+ JPEG2000_T1_SIG_NE | JPEG2000_T1_SIG_NW | \
+ JPEG2000_T1_SIG_SE | JPEG2000_T1_SIG_SW)
+// flags determining sign bit of neighbor coefficients
+#define JPEG2000_T1_SGN_N 0x0100
+#define JPEG2000_T1_SGN_S 0x0200
+#define JPEG2000_T1_SGN_W 0x0400
+#define JPEG2000_T1_SGN_E 0x0800
+
+#define JPEG2000_T1_VIS 0x1000
+#define JPEG2000_T1_SIG 0x2000
+#define JPEG2000_T1_REF 0x4000
+
+#define JPEG2000_T1_SGN 0x8000
+
+// Codeblock coding styles
+#define JPEG2000_CBLK_BYPASS 0x01 // Selective arithmetic coding bypass
+#define JPEG2000_CBLK_RESET 0x02 // Reset context probabilities
+#define JPEG2000_CBLK_TERMALL 0x04 // Terminate after each coding pass
+#define JPEG2000_CBLK_VSC 0x08 // Vertical stripe causal context formation
+#define JPEG2000_CBLK_PREDTERM 0x10 // Predictable termination
+#define JPEG2000_CBLK_SEGSYM 0x20 // Segmentation symbols present
+
+// Coding styles
+#define JPEG2000_CSTY_PREC 0x01 // Precincts defined in coding style
+#define JPEG2000_CSTY_SOP 0x02 // SOP marker present
+#define JPEG2000_CSTY_EPH 0x04 // EPH marker present
+
+// Progression orders
+#define JPEG2000_PGOD_LRCP 0x00 // Layer-resolution level-component-position progression
+#define JPEG2000_PGOD_RLCP 0x01 // Resolution level-layer-component-position progression
+#define JPEG2000_PGOD_RPCL 0x02 // Resolution level-position-component-layer progression
+#define JPEG2000_PGOD_PCRL 0x03 // Position-component-resolution level-layer progression
+#define JPEG2000_PGOD_CPRL 0x04 // Component-position-resolution level-layer progression
+
+typedef struct Jpeg2000T1Context {
+ int data[JPEG2000_MAX_CBLKW][JPEG2000_MAX_CBLKH];
+ int flags[JPEG2000_MAX_CBLKW + 2][JPEG2000_MAX_CBLKH + 2];
+ MqcState mqc;
+} Jpeg2000T1Context;
+
+typedef struct Jpeg2000TgtNode {
+ uint8_t val;
+ uint8_t vis;
+ struct Jpeg2000TgtNode *parent;
+} Jpeg2000TgtNode;
+
+typedef struct Jpeg2000CodingStyle {
+ uint8_t nreslevels; // number of resolution levels
+ uint8_t nreslevels2decode; // number of resolution levels to decode
+ uint8_t log2_cblk_width,
+ log2_cblk_height; // exponent of codeblock size
+ uint8_t transform; // DWT type
+ uint8_t csty; // coding style
+ uint8_t log2_prec_width,
+ log2_prec_height; // precinct size
+ uint8_t nlayers; // number of layers
+ uint8_t mct; // multiple component transformation
+ uint8_t cblk_style; // codeblock coding style
+ uint8_t prog_order; // progression order
+ uint8_t log2_prec_widths[JPEG2000_MAX_RESLEVELS]; // precincts size according resolution levels
+ uint8_t log2_prec_heights[JPEG2000_MAX_RESLEVELS]; // TODO: initialize prec_size array with 0?
+} Jpeg2000CodingStyle;
+
+typedef struct Jpeg2000QuantStyle {
+ uint8_t expn[32 * 3]; // quantization exponent
+ uint32_t mant[32 * 3]; // quantization mantissa
+ uint8_t quantsty; // quantization style
+ uint8_t nguardbits; // number of guard bits
+} Jpeg2000QuantStyle;
+
+typedef struct Jpeg2000Pass {
+ uint16_t rate;
+ int64_t disto;
+} Jpeg2000Pass;
+
+typedef struct Jpeg2000Cblk {
+ uint8_t npasses;
+ uint8_t ninclpasses; // number coding of passes included in codestream
+ uint8_t nonzerobits;
+ uint16_t length;
+ uint16_t lengthinc;
+ uint8_t lblock;
+ uint8_t zero;
+ uint8_t data[8192];
+ Jpeg2000Pass passes[100];
+ uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
+} Jpeg2000Cblk; // code block
+
+typedef struct Jpeg2000Prec {
+ uint16_t xi0, yi0; // codeblock indexes ([xi0, xi1))
+ uint16_t nb_codeblocks_width;
+ uint16_t nb_codeblocks_height;
+ Jpeg2000TgtNode *zerobits;
+ Jpeg2000TgtNode *cblkincl;
+ Jpeg2000Cblk *cblk;
+ uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
+} Jpeg2000Prec; // precinct
+
+/* TODO: stepsize can be float or integer depending on
+ * reversible or irreversible transformation. */
+typedef struct Jpeg2000Band {
+ uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
+ uint16_t log2_cblk_width, log2_cblk_height;
+ uint16_t cblknx, cblkny;
+ float stepsize; // quantization stepsize
+ Jpeg2000Prec *prec;
+} Jpeg2000Band; // subband
+
+typedef struct Jpeg2000ResLevel {
+ uint8_t nbands;
+ uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
+ uint16_t num_precincts_x, num_precincts_y; // number of precincts in x/y direction
+ uint8_t log2_prec_width, log2_prec_height; // exponent of precinct size
+ Jpeg2000Band *band;
+} Jpeg2000ResLevel; // resolution level
+
+/* TODO: data can be float of integer depending of reversible/irreversible
+ * transformation.
+ */
+typedef struct Jpeg2000Component {
+ Jpeg2000ResLevel *reslevel;
+ DWTContext dwt;
+ float *data;
+ uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}} -- can be reduced with lowres option
+ uint16_t coord_o[2][2]; // border coordinates {{x0, x1}, {y0, y1}} -- original values from jpeg2000 headers
+} Jpeg2000Component;
+
+/* misc tools */
+static inline int ff_jpeg2000_ceildivpow2(int a, int b)
+{
+ return (a + (1 << b) - 1) >> b;
+}
+
+static inline int ff_jpeg2000_ceildiv(int a, int b)
+{
+ return (a + b - 1) / b;
+}
+
+/* TIER-1 routines */
+
+/* Set up lookup tables used in TIER-1. */
+void ff_jpeg2000_init_tier1_luts(void);
+
+/* Update significance of a coefficient at current position (x,y) and
+ * for neighbors. */
+void ff_jpeg2000_set_significance(Jpeg2000T1Context *t1,
+ int x, int y, int negative);
+
+extern uint8_t ff_jpeg2000_sigctxno_lut[256][4];
+
+/* Get context label (number in range[0..8]) of a coefficient for significance
+ * propagation and cleanup coding passes. */
+static inline int ff_jpeg2000_getsigctxno(int flag, int bandno)
+{
+ return ff_jpeg2000_sigctxno_lut[flag & 255][bandno];
+}
+
+static const uint8_t refctxno_lut[2][2] = { { 14, 15 }, { 16, 16 } };
+
+/* Get context label (number in range[14..16]) of a coefficient for magnitude
+ * refinement pass. */
+static inline int ff_jpeg2000_getrefctxno(int flag)
+{
+ return refctxno_lut[(flag >> 14) & 1][(flag & 255) != 0];
+}
+
+extern uint8_t ff_jpeg2000_sgnctxno_lut[16][16];
+extern uint8_t ff_jpeg2000_xorbit_lut[16][16];
+
+/* Get context label (number in range[9..13]) for sign decoding. */
+static inline int ff_jpeg2000_getsgnctxno(int flag, int *xorbit)
+{
+ *xorbit = ff_jpeg2000_xorbit_lut[flag & 15][(flag >> 8) & 15];
+ return ff_jpeg2000_sgnctxno_lut[flag & 15][(flag >> 8) & 15];
+}
+
+int ff_jpeg2000_init_component(Jpeg2000Component *comp,
+ Jpeg2000CodingStyle *codsty,
+ Jpeg2000QuantStyle *qntsty,
+ int cbps, int dx, int dy,
+ AVCodecContext *ctx);
+
+void ff_jpeg2000_cleanup(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty);
+
+#endif /* AVCODEC_JPEG2000_H */
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
new file mode 100644
index 0000000000..c43d9984ed
--- /dev/null
+++ b/libavcodec/jpeg2000dec.c
@@ -0,0 +1,1336 @@
+/*
+ * JPEG 2000 image decoder
+ * Copyright (c) 2007 Kamil Nowosad
+ * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * JPEG 2000 image decoder
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "bytestream.h"
+#include "internal.h"
+#include "jpeg2000.h"
+
+#define JP2_SIG_TYPE 0x6A502020
+#define JP2_SIG_VALUE 0x0D0A870A
+#define JP2_CODESTREAM 0x6A703263
+
+#define HAD_COC 0x01
+#define HAD_QCC 0x02
+
+typedef struct Jpeg2000TilePart {
+ uint16_t tp_idx; // Tile-part index
+ uint8_t tile_index; // Tile index who refers the tile-part
+ uint32_t tp_len; // Length of tile-part
+ const uint8_t *tp_start_bstrm; // Start address bit stream in tile-part
+ const uint8_t *tp_end_bstrm; // End address of the bit stream tile part
+} Jpeg2000TilePart;
+
+/* RMK: For JPEG2000 DCINEMA 3 tile-parts in a tile
+ * one per component, so tile_part elements have a size of 3 */
+typedef struct Jpeg2000Tile {
+ Jpeg2000Component *comp;
+ uint8_t properties[4];
+ Jpeg2000CodingStyle codsty[4];
+ Jpeg2000QuantStyle qntsty[4];
+ Jpeg2000TilePart tile_part[3];
+} Jpeg2000Tile;
+
+typedef struct Jpeg2000DecoderContext {
+ AVClass *class;
+ AVCodecContext *avctx;
+
+ int width, height;
+ int image_offset_x, image_offset_y;
+ int tile_offset_x, tile_offset_y;
+ uint8_t cbps[4]; // bits per sample in particular components
+ uint8_t sgnd[4]; // if a component is signed
+ uint8_t properties[4];
+ int cdx[4], cdy[4];
+ int precision;
+ int ncomponents;
+ int tile_width, tile_height;
+ int numXtiles, numYtiles;
+ int maxtilelen;
+
+ Jpeg2000CodingStyle codsty[4];
+ Jpeg2000QuantStyle qntsty[4];
+
+ const uint8_t *buf_start;
+ const uint8_t *buf;
+ const uint8_t *buf_end;
+ int bit_index;
+
+ int16_t curtileno;
+ Jpeg2000Tile *tile;
+
+ /*options parameters*/
+ int16_t lowres;
+ int16_t reduction_factor;
+} Jpeg2000DecoderContext;
+
+/* get_bits functions for JPEG2000 packet bitstream
+ * It is a get_bit function with a bit-stuffing routine. If the value of the
+ * byte is 0xFF, the next byte includes an extra zero bit stuffed into the MSB.
+ * cf. ISO-15444-1:2002 / B.10.1 Bit-stuffing routine */
+static int get_bits(Jpeg2000DecoderContext *s, int n)
+{
+ int res = 0;
+ if (s->buf_end - s->buf < ((n - s->bit_index) >> 8))
+ return AVERROR(EINVAL);
+ while (--n >= 0) {
+ res <<= 1;
+ if (s->bit_index == 0) {
+ s->bit_index = 7 + (*s->buf != 0xff);
+ s->buf++;
+ }
+ s->bit_index--;
+ res |= (*s->buf >> s->bit_index) & 1;
+ }
+ return res;
+}
+
+static void jpeg2000_flush(Jpeg2000DecoderContext *s)
+{
+ if (*s->buf == 0xff)
+ s->buf++;
+ s->bit_index = 8;
+ s->buf++;
+}
+
+/* decode the value stored in node */
+static int tag_tree_decode(Jpeg2000DecoderContext *s, Jpeg2000TgtNode *node,
+ int threshold)
+{
+ Jpeg2000TgtNode *stack[30];
+ int sp = -1, curval = 0;
+
+ while (node && !node->vis) {
+ stack[++sp] = node;
+ node = node->parent;
+ }
+
+ if (node)
+ curval = node->val;
+ else
+ curval = stack[sp]->val;
+
+ while (curval < threshold && sp >= 0) {
+ if (curval < stack[sp]->val)
+ curval = stack[sp]->val;
+ while (curval < threshold) {
+ int ret;
+ if ((ret = get_bits(s, 1)) > 0) {
+ stack[sp]->vis++;
+ break;
+ } else if (!ret)
+ curval++;
+ else
+ return ret;
+ }
+ stack[sp]->val = curval;
+ sp--;
+ }
+ return curval;
+}
+
+/* marker segments */
+/* get sizes and offsets of image, tiles; number of components */
+static int get_siz(Jpeg2000DecoderContext *s)
+{
+ int i;
+
+ if (s->buf_end - s->buf < 36)
+ return AVERROR(EINVAL);
+
+ s->avctx->profile = bytestream_get_be16(&s->buf); // Rsiz
+ s->width = bytestream_get_be32(&s->buf); // Width
+ s->height = bytestream_get_be32(&s->buf); // Height
+ s->image_offset_x = bytestream_get_be32(&s->buf); // X0Siz
+ s->image_offset_y = bytestream_get_be32(&s->buf); // Y0Siz
+ s->tile_width = bytestream_get_be32(&s->buf); // XTSiz
+ s->tile_height = bytestream_get_be32(&s->buf); // YTSiz
+ s->tile_offset_x = bytestream_get_be32(&s->buf); // XT0Siz
+ s->tile_offset_y = bytestream_get_be32(&s->buf); // YT0Siz
+ s->ncomponents = bytestream_get_be16(&s->buf); // CSiz
+
+ if (s->buf_end - s->buf < 2 * s->ncomponents)
+ return AVERROR(EINVAL);
+
+ for (i = 0; i < s->ncomponents; i++) { // Ssiz_i XRsiz_i, YRsiz_i
+ uint8_t x = bytestream_get_byte(&s->buf);
+ s->cbps[i] = (x & 0x7f) + 1;
+ s->precision = FFMAX(s->cbps[i], s->precision);
+ s->sgnd[i] = (x & 0x80) == 1;
+ s->cdx[i] = bytestream_get_byte(&s->buf);
+ s->cdy[i] = bytestream_get_byte(&s->buf);
+ }
+
+ s->numXtiles = ff_jpeg2000_ceildiv(s->width - s->tile_offset_x, s->tile_width);
+ s->numYtiles = ff_jpeg2000_ceildiv(s->height - s->tile_offset_y, s->tile_height);
+
+ s->tile = av_mallocz(s->numXtiles * s->numYtiles * sizeof(*s->tile));
+ if (!s->tile)
+ return AVERROR(ENOMEM);
+
+ for (i = 0; i < s->numXtiles * s->numYtiles; i++) {
+ Jpeg2000Tile *tile = s->tile + i;
+
+ tile->comp = av_mallocz(s->ncomponents * sizeof(*tile->comp));
+ if (!tile->comp)
+ return AVERROR(ENOMEM);
+ }
+
+ /* compute image size with reduction factor */
+ s->avctx->width = ff_jpeg2000_ceildivpow2(s->width - s->image_offset_x,
+ s->reduction_factor);
+ s->avctx->height = ff_jpeg2000_ceildivpow2(s->height - s->image_offset_y,
+ s->reduction_factor);
+
+ switch (s->avctx->profile) {
+ case FF_PROFILE_JPEG2000_DCINEMA_2K:
+ case FF_PROFILE_JPEG2000_DCINEMA_4K:
+ /* XYZ color-space for digital cinema profiles */
+ s->avctx->pix_fmt = AV_PIX_FMT_XYZ12LE;
+ break;
+ default:
+ /* For other profiles selects color-space according number of
+ * components and bit depth precision. */
+ switch (s->ncomponents) {
+ case 1:
+ if (s->precision > 8)
+ s->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
+ else
+ s->avctx->pix_fmt = AV_PIX_FMT_GRAY8;
+ break;
+ case 3:
+ if (s->precision > 8)
+ s->avctx->pix_fmt = AV_PIX_FMT_RGB48;
+ else
+ s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
+ break;
+ case 4:
+ s->avctx->pix_fmt = AV_PIX_FMT_BGRA;
+ break;
+ default:
+ /* pixel format can not be identified */
+ s->avctx->pix_fmt = AV_PIX_FMT_NONE;
+ break;
+ }
+ break;
+ }
+ return 0;
+}
+
+/* get common part for COD and COC segments */
+static int get_cox(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c)
+{
+ uint8_t byte;
+
+ if (s->buf_end - s->buf < 5)
+ return AVERROR(EINVAL);
+ c->nreslevels = bytestream_get_byte(&s->buf) + 1; // num of resolution levels - 1
+
+ /* compute number of resolution levels to decode */
+ if (c->nreslevels < s->reduction_factor)
+ c->nreslevels2decode = 1;
+ else
+ c->nreslevels2decode = c->nreslevels - s->reduction_factor;
+
+ c->log2_cblk_width = bytestream_get_byte(&s->buf) + 2; // cblk width
+ c->log2_cblk_height = bytestream_get_byte(&s->buf) + 2; // cblk height
+
+ c->cblk_style = bytestream_get_byte(&s->buf);
+ if (c->cblk_style != 0) { // cblk style
+ av_log(s->avctx, AV_LOG_ERROR, "no extra cblk styles supported\n");
+ return -1;
+ }
+ c->transform = bytestream_get_byte(&s->buf); // DWT transformation type
+ /* set integer 9/7 DWT in case of BITEXACT flag */
+ if ((s->avctx->flags & CODEC_FLAG_BITEXACT) && (c->transform == FF_DWT97))
+ c->transform = FF_DWT97_INT;
+
+ if (c->csty & JPEG2000_CSTY_PREC) {
+ int i;
+ for (i = 0; i < c->nreslevels; i++) {
+ byte = bytestream_get_byte(&s->buf);
+ c->log2_prec_widths[i] = byte & 0x0F; // precinct PPx
+ c->log2_prec_heights[i] = (byte >> 4) & 0x0F; // precinct PPy
+ }
+ }
+ return 0;
+}
+
+/* get coding parameters for a particular tile or whole image*/
+static int get_cod(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c,
+ uint8_t *properties)
+{
+ Jpeg2000CodingStyle tmp;
+ int compno;
+
+ if (s->buf_end - s->buf < 5)
+ return AVERROR(EINVAL);
+
+ tmp.log2_prec_width =
+ tmp.log2_prec_height = 15;
+
+ tmp.csty = bytestream_get_byte(&s->buf);
+
+ // get progression order
+ tmp.prog_order = bytestream_get_byte(&s->buf);
+
+ tmp.nlayers = bytestream_get_be16(&s->buf);
+ tmp.mct = bytestream_get_byte(&s->buf); // multiple component transformation
+
+ get_cox(s, &tmp);
+ for (compno = 0; compno < s->ncomponents; compno++)
+ if (!(properties[compno] & HAD_COC))
+ memcpy(c + compno, &tmp, sizeof(tmp));
+ return 0;
+}
+
+/* Get coding parameters for a component in the whole image or a
+ * particular tile. */
+static int get_coc(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c,
+ uint8_t *properties)
+{
+ int compno;
+
+ if (s->buf_end - s->buf < 2)
+ return AVERROR(EINVAL);
+
+ compno = bytestream_get_byte(&s->buf);
+
+ c += compno;
+ c->csty = bytestream_get_byte(&s->buf);
+ get_cox(s, c);
+
+ properties[compno] |= HAD_COC;
+ return 0;
+}
+
+/* Get common part for QCD and QCC segments. */
+static int get_qcx(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q)
+{
+ int i, x;
+
+ if (s->buf_end - s->buf < 1)
+ return AVERROR(EINVAL);
+
+ x = bytestream_get_byte(&s->buf); // Sqcd
+
+ q->nguardbits = x >> 5;
+ q->quantsty = x & 0x1f;
+
+ if (q->quantsty == JPEG2000_QSTY_NONE) {
+ n -= 3;
+ if (s->buf_end - s->buf < n)
+ return AVERROR(EINVAL);
+ for (i = 0; i < n; i++)
+ q->expn[i] = bytestream_get_byte(&s->buf) >> 3;
+ } else if (q->quantsty == JPEG2000_QSTY_SI) {
+ if (s->buf_end - s->buf < 2)
+ return AVERROR(EINVAL);
+ x = bytestream_get_be16(&s->buf);
+ q->expn[0] = x >> 11;
+ q->mant[0] = x & 0x7ff;
+ for (i = 1; i < 32 * 3; i++) {
+ int curexpn = FFMAX(0, q->expn[0] - (i - 1) / 3);
+ q->expn[i] = curexpn;
+ q->mant[i] = q->mant[0];
+ }
+ } else {
+ n = (n - 3) >> 1;
+ if (s->buf_end - s->buf < n)
+ return AVERROR(EINVAL);
+ for (i = 0; i < n; i++) {
+ x = bytestream_get_be16(&s->buf);
+ q->expn[i] = x >> 11;
+ q->mant[i] = x & 0x7ff;
+ }
+ }
+ return 0;
+}
+
+/* Get quantization parameters for a particular tile or a whole image. */
+static int get_qcd(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q,
+ uint8_t *properties)
+{
+ Jpeg2000QuantStyle tmp;
+ int compno;
+
+ if (get_qcx(s, n, &tmp))
+ return -1;
+ for (compno = 0; compno < s->ncomponents; compno++)
+ if (!(properties[compno] & HAD_QCC))
+ memcpy(q + compno, &tmp, sizeof(tmp));
+ return 0;
+}
+
+/* Get quantization parameters for a component in the whole image
+ * on in a particular tile. */
+static int get_qcc(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q,
+ uint8_t *properties)
+{
+ int compno;
+
+ if (s->buf_end - s->buf < 1)
+ return AVERROR(EINVAL);
+
+ compno = bytestream_get_byte(&s->buf);
+ properties[compno] |= HAD_QCC;
+ return get_qcx(s, n - 1, q + compno);
+}
+
+/* Get start of tile segment. */
+static uint8_t get_sot(Jpeg2000DecoderContext *s, int n)
+{
+ Jpeg2000TilePart *tp;
+ uint16_t Isot;
+ uint32_t Psot;
+ uint8_t TPsot;
+
+ if (s->buf_end - s->buf < 4)
+ return AVERROR(EINVAL);
+
+ Isot = bytestream_get_be16(&s->buf); // Isot
+ if (Isot) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Not a DCINEMA JP2K file: more than one tile\n");
+ return -1;
+ }
+ Psot = bytestream_get_be32(&s->buf); // Psot
+ TPsot = bytestream_get_byte(&s->buf); // TPsot
+
+ /* Read TNSot but not used */
+ bytestream_get_byte(&s->buf); // TNsot
+
+ tp = s->tile[s->curtileno].tile_part + TPsot;
+ tp->tile_index = Isot;
+ tp->tp_len = Psot;
+ tp->tp_idx = TPsot;
+
+ /* Start of bit stream. Pointer to SOD marker
+ * Check SOD marker is present. */
+ if (JPEG2000_SOD == bytestream_get_be16(&s->buf))
+ tp->tp_start_bstrm = s->buf;
+ else {
+ av_log(s->avctx, AV_LOG_ERROR, "SOD marker not found \n");
+ return -1;
+ }
+
+ /* End address of bit stream =
+ * start address + (Psot - size of SOT HEADER(n)
+ * - size of SOT MARKER(2) - size of SOD marker(2) */
+ tp->tp_end_bstrm = s->buf + (tp->tp_len - n - 4);
+
+ // set buffer pointer to end of tile part header
+ s->buf = tp->tp_end_bstrm;
+
+ return 0;
+}
+
+/* Tile-part lengths: see ISO 15444-1:2002, section A.7.1
+ * Used to know the number of tile parts and lengths.
+ * There may be multiple TLMs in the header.
+ * TODO: The function is not used for tile-parts management, nor anywhere else.
+ * It can be useful to allocate memory for tile parts, before managing the SOT
+ * markers. Parsing the TLM header is needed to increment the input header
+ * buffer.
+ * This marker is mandatory for DCI. */
+static uint8_t get_tlm(Jpeg2000DecoderContext *s, int n)
+{
+ uint8_t Stlm, ST, SP, tile_tlm, i;
+ bytestream_get_byte(&s->buf); /* Ztlm: skipped */
+ Stlm = bytestream_get_byte(&s->buf);
+
+ // too complex ? ST = ((Stlm >> 4) & 0x01) + ((Stlm >> 4) & 0x02);
+ ST = (Stlm >> 4) & 0x03;
+ // TODO: Manage case of ST = 0b11 --> raise error
+ SP = (Stlm >> 6) & 0x01;
+ tile_tlm = (n - 4) / ((SP + 1) * 2 + ST);
+ for (i = 0; i < tile_tlm; i++) {
+ switch (ST) {
+ case 0:
+ break;
+ case 1:
+ bytestream_get_byte(&s->buf);
+ break;
+ case 2:
+ bytestream_get_be16(&s->buf);
+ break;
+ case 3:
+ bytestream_get_be32(&s->buf);
+ break;
+ }
+ if (SP == 0) {
+ bytestream_get_be16(&s->buf);
+ } else {
+ bytestream_get_be32(&s->buf);
+ }
+ }
+ return 0;
+}
+
+static int init_tile(Jpeg2000DecoderContext *s, int tileno)
+{
+ int compno;
+ int tilex = tileno % s->numXtiles;
+ int tiley = tileno / s->numXtiles;
+ Jpeg2000Tile *tile = s->tile + tileno;
+ Jpeg2000CodingStyle *codsty;
+ Jpeg2000QuantStyle *qntsty;
+
+ if (!tile->comp)
+ return AVERROR(ENOMEM);
+
+ /* copy codsty, qnsty to tile. TODO: Is it the best way?
+ * codsty, qnsty is an array of 4 structs Jpeg2000CodingStyle
+ * and Jpeg2000QuantStyle */
+ memcpy(tile->codsty, s->codsty, s->ncomponents * sizeof(*codsty));
+ memcpy(tile->qntsty, s->qntsty, s->ncomponents * sizeof(*qntsty));
+
+ for (compno = 0; compno < s->ncomponents; compno++) {
+ Jpeg2000Component *comp = tile->comp + compno;
+ int ret; // global bandno
+ codsty = tile->codsty + compno;
+ qntsty = tile->qntsty + compno;
+
+ comp->coord_o[0][0] = FFMAX(tilex * s->tile_width + s->tile_offset_x, s->image_offset_x);
+ comp->coord_o[0][1] = FFMIN((tilex + 1) * s->tile_width + s->tile_offset_x, s->width);
+ comp->coord_o[1][0] = FFMAX(tiley * s->tile_height + s->tile_offset_y, s->image_offset_y);
+ comp->coord_o[1][1] = FFMIN((tiley + 1) * s->tile_height + s->tile_offset_y, s->height);
+
+ // FIXME: add a dcinema profile check ?
+ // value is guaranteed by profile (orig=0, 1 tile)
+ comp->coord[0][0] = 0;
+ comp->coord[0][1] = s->avctx->width;
+ comp->coord[1][0] = 0;
+ comp->coord[1][1] = s->avctx->height;
+
+ if (ret = ff_jpeg2000_init_component(comp, codsty, qntsty,
+ s->cbps[compno], s->cdx[compno],
+ s->cdy[compno], s->avctx))
+ return ret;
+ }
+ return 0;
+}
+
+/* Read the number of coding passes. */
+static int getnpasses(Jpeg2000DecoderContext *s)
+{
+ int num;
+ if (!get_bits(s, 1))
+ return 1;
+ if (!get_bits(s, 1))
+ return 2;
+ if ((num = get_bits(s, 2)) != 3)
+ return num < 0 ? num : 3 + num;
+ if ((num = get_bits(s, 5)) != 31)
+ return num < 0 ? num : 6 + num;
+ num = get_bits(s, 7);
+ return num < 0 ? num : 37 + num;
+}
+
+static int getlblockinc(Jpeg2000DecoderContext *s)
+{
+ int res = 0, ret;
+ while (ret = get_bits(s, 1)) {
+ if (ret < 0)
+ return ret;
+ res++;
+ }
+ return res;
+}
+
+static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s,
+ Jpeg2000CodingStyle *codsty,
+ Jpeg2000ResLevel *rlevel, int precno,
+ int layno, uint8_t *expn, int numgbits)
+{
+ int bandno, cblkno, ret, nb_code_blocks;
+
+ if (!(ret = get_bits(s, 1))) {
+ jpeg2000_flush(s);
+ return 0;
+ } else if (ret < 0)
+ return ret;
+
+ for (bandno = 0; bandno < rlevel->nbands; bandno++) {
+ Jpeg2000Band *band = rlevel->band + bandno;
+ Jpeg2000Prec *prec = band->prec + precno;
+
+ if (band->coord[0][0] == band->coord[0][1] ||
+ band->coord[1][0] == band->coord[1][1])
+ continue;
+ prec->yi0 = 0;
+ prec->xi0 = 0;
+ nb_code_blocks = prec->nb_codeblocks_height *
+ prec->nb_codeblocks_width;
+ for (cblkno = 0; cblkno < nb_code_blocks; cblkno++) {
+ Jpeg2000Cblk *cblk = prec->cblk + cblkno;
+ int incl, newpasses, llen;
+
+ if (cblk->npasses)
+ incl = get_bits(s, 1);
+ else
+ incl = tag_tree_decode(s, prec->cblkincl + cblkno, layno + 1) == layno;
+ if (!incl)
+ continue;
+ else if (incl < 0)
+ return incl;
+
+ if (!cblk->npasses)
+ cblk->nonzerobits = expn[bandno] + numgbits - 1 -
+ tag_tree_decode(s, prec->zerobits + cblkno,
+ 100);
+ if ((newpasses = getnpasses(s)) < 0)
+ return newpasses;
+ if ((llen = getlblockinc(s)) < 0)
+ return llen;
+ cblk->lblock += llen;
+ if ((ret = get_bits(s, av_log2(newpasses) + cblk->lblock)) < 0)
+ return ret;
+ cblk->lengthinc = ret;
+ cblk->npasses += newpasses;
+ }
+ }
+ jpeg2000_flush(s);
+
+ if (codsty->csty & JPEG2000_CSTY_EPH) {
+ if (AV_RB16(s->buf) == JPEG2000_EPH)
+ s->buf += 2;
+ else
+ av_log(s->avctx, AV_LOG_ERROR, "EPH marker not found.\n");
+ }
+
+ for (bandno = 0; bandno < rlevel->nbands; bandno++) {
+ Jpeg2000Band *band = rlevel->band + bandno;
+ Jpeg2000Prec *prec = band->prec + precno;
+
+ nb_code_blocks = prec->nb_codeblocks_height * prec->nb_codeblocks_width;
+ for (cblkno = 0; cblkno < nb_code_blocks; cblkno++) {
+ Jpeg2000Cblk *cblk = prec->cblk + cblkno;
+ if (s->buf_end - s->buf < cblk->lengthinc)
+ return AVERROR(EINVAL);
+ bytestream_get_buffer(&s->buf, cblk->data, cblk->lengthinc);
+ cblk->length += cblk->lengthinc;
+ cblk->lengthinc = 0;
+ }
+ }
+ return 0;
+}
+
+static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
+{
+ int layno, reslevelno, compno, precno, ok_reslevel;
+ uint8_t prog_order = tile->codsty[0].prog_order;
+ uint16_t x;
+ uint16_t y;
+
+ s->bit_index = 8;
+ switch (prog_order) {
+ case JPEG2000_PGOD_LRCP:
+ for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
+ ok_reslevel = 1;
+ for (reslevelno = 0; ok_reslevel; reslevelno++) {
+ ok_reslevel = 0;
+ for (compno = 0; compno < s->ncomponents; compno++) {
+ Jpeg2000CodingStyle *codsty = tile->codsty + compno;
+ Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
+ if (reslevelno < codsty->nreslevels) {
+ Jpeg2000ResLevel *rlevel = tile->comp[compno].reslevel +
+ reslevelno;
+ ok_reslevel = 1;
+ for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++)
+ if (jpeg2000_decode_packet(s,
+ codsty, rlevel,
+ precno, layno,
+ qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0),
+ qntsty->nguardbits))
+ return -1;
+ }
+ }
+ }
+ }
+ break;
+
+ case JPEG2000_PGOD_CPRL:
+ for (compno = 0; compno < s->ncomponents; compno++) {
+ Jpeg2000CodingStyle *codsty = tile->codsty + compno;
+ Jpeg2000QuantStyle *qntsty = tile->qntsty + compno;
+
+ /* Set bit stream buffer address according to tile-part.
+ * For DCinema one tile-part per component, so can be
+ * indexed by component. */
+ s->buf = tile->tile_part[compno].tp_start_bstrm;
+
+ /* Position loop (y axis)
+ * TODO: Automate computing of step 256.
+ * Fixed here, but to be computed before entering here. */
+ for (y = 0; y < s->height; y += 256) {
+ /* Position loop (y axis)
+ * TODO: automate computing of step 256.
+ * Fixed here, but to be computed before entering here. */
+ for (x = 0; x < s->width; x += 256) {
+ for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
+ uint16_t prcx, prcy;
+ uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
+ Jpeg2000ResLevel *rlevel = tile->comp[compno].reslevel + reslevelno;
+
+ if (!((y % (1 << (rlevel->log2_prec_height + reducedresno)) == 0) ||
+ (y == 0))) // TODO: 2nd condition simplified as try0 always =0 for dcinema
+ continue;
+
+ if (!((x % (1 << (rlevel->log2_prec_width + reducedresno)) == 0) ||
+ (x == 0))) // TODO: 2nd condition simplified as try0 always =0 for dcinema
+ continue;
+
+ // check if a precinct exists
+ prcx = ff_jpeg2000_ceildivpow2(x, reducedresno) >> rlevel->log2_prec_width;
+ prcy = ff_jpeg2000_ceildivpow2(y, reducedresno) >> rlevel->log2_prec_height;
+ precno = prcx + rlevel->num_precincts_x * prcy;
+ for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
+ if (jpeg2000_decode_packet(s, codsty, rlevel,
+ precno, layno,
+ qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0),
+ qntsty->nguardbits))
+ return -1;
+ }
+ }
+ }
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ /* EOC marker reached */
+ s->buf += 2;
+
+ return 0;
+}
+
+/* TIER-1 routines */
+static void decode_sigpass(Jpeg2000T1Context *t1, int width, int height,
+ int bpno, int bandno)
+{
+ int mask = 3 << (bpno - 1), y0, x, y;
+
+ for (y0 = 0; y0 < height; y0 += 4)
+ for (x = 0; x < width; x++)
+ for (y = y0; y < height && y < y0 + 4; y++)
+ if ((t1->flags[y + 1][x + 1] & JPEG2000_T1_SIG_NB)
+ && !(t1->flags[y + 1][x + 1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))) {
+ if (ff_mqc_decode(&t1->mqc,
+ t1->mqc.cx_states +
+ ff_jpeg2000_getsigctxno(t1->flags[y + 1][x + 1],
+ bandno))) {
+ int xorbit, ctxno = ff_jpeg2000_getsgnctxno(t1->flags[y + 1][x + 1],
+ &xorbit);
+
+ t1->data[y][x] =
+ (ff_mqc_decode(&t1->mqc,
+ t1->mqc.cx_states + ctxno) ^ xorbit)
+ ? -mask : mask;
+
+ ff_jpeg2000_set_significance(t1, x, y,
+ t1->data[y][x] < 0);
+ }
+ t1->flags[y + 1][x + 1] |= JPEG2000_T1_VIS;
+ }
+}
+
+static void decode_refpass(Jpeg2000T1Context *t1, int width, int height,
+ int bpno)
+{
+ int phalf, nhalf;
+ int y0, x, y;
+
+ phalf = 1 << (bpno - 1);
+ nhalf = -phalf;
+
+ for (y0 = 0; y0 < height; y0 += 4)
+ for (x = 0; x < width; x++)
+ for (y = y0; y < height && y < y0 + 4; y++)
+ if ((t1->flags[y + 1][x + 1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS)) == JPEG2000_T1_SIG) {
+ int ctxno = ff_jpeg2000_getrefctxno(t1->flags[y + 1][x + 1]);
+ int r = ff_mqc_decode(&t1->mqc,
+ t1->mqc.cx_states + ctxno)
+ ? phalf : nhalf;
+ t1->data[y][x] += t1->data[y][x] < 0 ? -r : r;
+ t1->flags[y + 1][x + 1] |= JPEG2000_T1_REF;
+ }
+}
+
+static void decode_clnpass(Jpeg2000DecoderContext *s, Jpeg2000T1Context *t1,
+ int width, int height, int bpno, int bandno,
+ int seg_symbols)
+{
+ int mask = 3 << (bpno - 1), y0, x, y, runlen, dec;
+
+ for (y0 = 0; y0 < height; y0 += 4)
+ for (x = 0; x < width; x++) {
+ if (y0 + 3 < height &&
+ !((t1->flags[y0 + 1][x + 1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
+ (t1->flags[y0 + 2][x + 1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
+ (t1->flags[y0 + 3][x + 1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
+ (t1->flags[y0 + 4][x + 1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)))) {
+ if (!ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL))
+ continue;
+ runlen = ff_mqc_decode(&t1->mqc,
+ t1->mqc.cx_states + MQC_CX_UNI);
+ runlen = (runlen << 1) | ff_mqc_decode(&t1->mqc,
+ t1->mqc.cx_states +
+ MQC_CX_UNI);
+ dec = 1;
+ } else {
+ runlen = 0;
+ dec = 0;
+ }
+
+ for (y = y0 + runlen; y < y0 + 4 && y < height; y++) {
+ if (!dec) {
+ if (!(t1->flags[y + 1][x + 1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS)))
+ dec = ff_mqc_decode(&t1->mqc,
+ t1->mqc.cx_states +
+ ff_jpeg2000_getsigctxno(t1->flags[y + 1][x + 1],
+ bandno));
+ }
+ if (dec) {
+ int xorbit;
+ int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[y + 1][x + 1],
+ &xorbit);
+ t1->data[y][x] = (ff_mqc_decode(&t1->mqc,
+ t1->mqc.cx_states + ctxno) ^
+ xorbit)
+ ? -mask : mask;
+ ff_jpeg2000_set_significance(t1, x, y, t1->data[y][x] < 0);
+ }
+ dec = 0;
+ t1->flags[y + 1][x + 1] &= ~JPEG2000_T1_VIS;
+ }
+ }
+ if (seg_symbols) {
+ int val;
+ val = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ val = (val << 1) + ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ val = (val << 1) + ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ val = (val << 1) + ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ if (val != 0xa)
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Segmentation symbol value incorrect\n");
+ }
+}
+
+static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
+ Jpeg2000T1Context *t1, Jpeg2000Cblk *cblk,
+ int width, int height, int bandpos)
+{
+ int passno = cblk->npasses, pass_t = 2, bpno = cblk->nonzerobits - 1, y;
+
+ for (y = 0; y < height + 2; y++)
+ memset(t1->flags[y], 0, (width + 2) * sizeof(width));
+
+ for (y = 0; y < height; y++)
+ memset(t1->data[y], 0, width * sizeof(width));
+
+ ff_mqc_initdec(&t1->mqc, cblk->data);
+ cblk->data[cblk->length] = 0xff;
+ cblk->data[cblk->length + 1] = 0xff;
+
+ while (passno--) {
+ switch (pass_t) {
+ case 0:
+ decode_sigpass(t1, width, height, bpno + 1, bandpos);
+ break;
+ case 1:
+ decode_refpass(t1, width, height, bpno + 1);
+ break;
+ case 2:
+ decode_clnpass(s, t1, width, height, bpno + 1, bandpos,
+ codsty->cblk_style & JPEG2000_CBLK_SEGSYM);
+ break;
+ }
+
+ pass_t++;
+ if (pass_t == 3) {
+ bpno--;
+ pass_t = 0;
+ }
+ }
+ return 0;
+}
+
+/* TODO: Verify dequantization for lossless case
+ * comp->data can be float or int
+ * band->stepsize can be float or int
+ * depending on the type of DWT transformation.
+ * see ISO/IEC 15444-1:2002 A.6.1 */
+
+/* Float dequantization of a codeblock.*/
+static void dequantization_float(int x, int y, Jpeg2000Cblk *cblk,
+ Jpeg2000Component *comp,
+ Jpeg2000T1Context *t1, Jpeg2000Band *band)
+{
+ int i, j, idx;
+ float *datap = &comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x];
+ for (j = 0; j < (cblk->coord[1][1] - cblk->coord[1][0]); ++j)
+ for (i = 0; i < (cblk->coord[0][1] - cblk->coord[0][0]); ++i) {
+ idx = (comp->coord[0][1] - comp->coord[0][0]) * j + i;
+ datap[idx] = (float)(t1->data[j][i]) * ((float)band->stepsize);
+ }
+ return;
+}
+
+/* Integer dequantization of a codeblock.*/
+static void dequantization_int(int x, int y, Jpeg2000Cblk *cblk,
+ Jpeg2000Component *comp,
+ Jpeg2000T1Context *t1, Jpeg2000Band *band)
+{
+ int i, j, idx;
+ int32_t *datap =
+ (int32_t *) &comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x];
+ for (j = 0; j < (cblk->coord[1][1] - cblk->coord[1][0]); ++j)
+ for (i = 0; i < (cblk->coord[0][1] - cblk->coord[0][0]); ++i) {
+ idx = (comp->coord[0][1] - comp->coord[0][0]) * j + i;
+ datap[idx] =
+ ((int32_t)(t1->data[j][i]) * ((int32_t)band->stepsize) + (1 << 15)) >> 16;
+ }
+ return;
+}
+
+/* Inverse ICT parameters in float and integer.
+ * int value = (float value) * (1<<16) */
+static const float f_ict_params[4] = {
+ 1.402f,
+ 0.34413f,
+ 0.71414f,
+ 1.772f
+};
+static const int i_ict_params[4] = {
+ 91881,
+ 22553,
+ 46802,
+ 116130
+};
+
+static int mct_decode(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
+{
+ int i, csize = 1;
+ int ret = 0;
+ int32_t *src[3], i0, i1, i2;
+ float *srcf[3], i0f, i1f, i2f;
+
+ for (i = 0; i < 3; i++)
+ if (tile->codsty[0].transform == FF_DWT97)
+ srcf[i] = tile->comp[i].data;
+ else
+ src[i] = (int32_t *)tile->comp[i].data;
+
+ for (i = 0; i < 2; i++)
+ csize *= tile->comp[0].coord[i][1] - tile->comp[0].coord[i][0];
+ switch (tile->codsty[0].transform) {
+ case FF_DWT97:
+ for (i = 0; i < csize; i++) {
+ i0f = *srcf[0] + (f_ict_params[0] * *srcf[2]);
+ i1f = *srcf[0] - (f_ict_params[1] * *srcf[1])
+ - (f_ict_params[2] * *srcf[2]);
+ i2f = *srcf[0] + (f_ict_params[3] * *srcf[1]);
+ *srcf[0]++ = i0f;
+ *srcf[1]++ = i1f;
+ *srcf[2]++ = i2f;
+ }
+ break;
+ case FF_DWT97_INT:
+ for (i = 0; i < csize; i++) {
+ i0 = *src[0] + (((i_ict_params[0] * *src[2]) + (1 << 15)) >> 16);
+ i1 = *src[0] - (((i_ict_params[1] * *src[1]) + (1 << 15)) >> 16)
+ - (((i_ict_params[2] * *src[2]) + (1 << 15)) >> 16);
+ i2 = *src[0] + (((i_ict_params[3] * *src[1]) + (1 << 15)) >> 16);
+ *src[0]++ = i0;
+ *src[1]++ = i1;
+ *src[2]++ = i2;
+ }
+ break;
+ case FF_DWT53:
+ for (i = 0; i < csize; i++) {
+ i1 = *src[0] - (*src[2] + *src[1] >> 2);
+ i0 = i1 + *src[2];
+ i2 = i1 + *src[1];
+ *src[0]++ = i0;
+ *src[1]++ = i1;
+ *src[2]++ = i2;
+ }
+ break;
+ }
+ return ret;
+}
+
+static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
+ AVFrame *picture)
+{
+ int compno, reslevelno, bandno;
+ int x, y;
+
+ uint8_t *line;
+ Jpeg2000T1Context t1;
+ /* Loop on tile components */
+
+ for (compno = 0; compno < s->ncomponents; compno++) {
+ Jpeg2000Component *comp = tile->comp + compno;
+ Jpeg2000CodingStyle *codsty = tile->codsty + compno;
+ /* Loop on resolution levels */
+ for (reslevelno = 0; reslevelno < codsty->nreslevels2decode; reslevelno++) {
+ Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
+ /* Loop on bands */
+ for (bandno = 0; bandno < rlevel->nbands; bandno++) {
+ uint16_t nb_precincts, precno;
+ Jpeg2000Band *band = rlevel->band + bandno;
+ int cblkno = 0, bandpos;
+ bandpos = bandno + (reslevelno > 0);
+
+ nb_precincts = rlevel->num_precincts_x * rlevel->num_precincts_y;
+ /* Loop on precincts */
+ for (precno = 0; precno < nb_precincts; precno++) {
+ Jpeg2000Prec *prec = band->prec + precno;
+
+ /* Loop on codeblocks */
+ for (cblkno = 0; cblkno < prec->nb_codeblocks_width * prec->nb_codeblocks_height; cblkno++) {
+ int x, y;
+ Jpeg2000Cblk *cblk = prec->cblk + cblkno;
+ decode_cblk(s, codsty, &t1, cblk,
+ cblk->coord[0][1] - cblk->coord[0][0],
+ cblk->coord[1][1] - cblk->coord[1][0],
+ bandpos);
+
+ /* Manage band offsets */
+ x = cblk->coord[0][0];
+ y = cblk->coord[1][0];
+ if ((reslevelno > 0) && ((bandno + 1) & 1)) {
+ Jpeg2000ResLevel *pres = comp->reslevel + (reslevelno - 1);
+ x += pres->coord[0][1] - pres->coord[0][0];
+ }
+ if ((reslevelno > 0) && ((bandno + 1) & 2)) {
+ Jpeg2000ResLevel *pres = comp->reslevel + (reslevelno - 1);
+ y += pres->coord[1][1] - pres->coord[1][0];
+ }
+
+ if (s->avctx->flags & CODEC_FLAG_BITEXACT)
+ dequantization_int(x, y, cblk, comp, &t1, band);
+ else
+ dequantization_float(x, y, cblk, comp, &t1, band);
+ } /* end cblk */
+ } /*end prec */
+ } /* end band */
+ } /* end reslevel */
+
+ /* inverse DWT */
+ ff_dwt_decode(&comp->dwt, comp->data);
+ } /*end comp */
+
+ /* inverse MCT transformation */
+ if (tile->codsty[0].mct)
+ mct_decode(s, tile);
+
+ if (s->avctx->pix_fmt == PIX_FMT_BGRA) // RGBA -> BGRA
+ FFSWAP(float *, tile->comp[0].data, tile->comp[2].data);
+
+ if (s->precision <= 8) {
+ for (compno = 0; compno < s->ncomponents; compno++) {
+ Jpeg2000Component *comp = tile->comp + compno;
+ int32_t *datap = (int32_t *)comp->data;
+ y = tile->comp[compno].coord[1][0] - s->image_offset_y;
+ line = picture->data[0] + y * picture->linesize[0];
+ for (; y < tile->comp[compno].coord[1][1] - s->image_offset_y; y += s->cdy[compno]) {
+ uint8_t *dst;
+
+ x = tile->comp[compno].coord[0][0] - s->image_offset_x;
+ dst = line + x * s->ncomponents + compno;
+
+ for (; x < tile->comp[compno].coord[0][1] - s->image_offset_x; x += s->cdx[compno]) {
+ *datap += 1 << (s->cbps[compno] - 1);
+ if (*datap < 0)
+ *datap = 0;
+ else if (*datap >= (1 << s->cbps[compno]))
+ *datap = (1 << s->cbps[compno]) - 1;
+ *dst = *datap++;
+ dst += s->ncomponents;
+ }
+ line += picture->linesize[0];
+ }
+ }
+ } else {
+ for (compno = 0; compno < s->ncomponents; compno++) {
+ Jpeg2000Component *comp = tile->comp + compno;
+ float *datap = comp->data;
+ int32_t *i_datap = (int32_t *) comp->data;
+ uint16_t *linel;
+
+ y = tile->comp[compno].coord[1][0] - s->image_offset_y;
+ linel = (uint16_t *)picture->data[0] + y * (picture->linesize[0] >> 1);
+ for (; y < tile->comp[compno].coord[1][1] - s->image_offset_y; y += s->cdy[compno]) {
+ uint16_t *dst;
+ x = tile->comp[compno].coord[0][0] - s->image_offset_x;
+ dst = linel + (x * s->ncomponents + compno);
+ for (; x < s->avctx->width; x += s->cdx[compno]) {
+ int16_t val;
+ /* DC level shift and clip see ISO 15444-1:2002 G.1.2 */
+ if (s->avctx->flags & CODEC_FLAG_BITEXACT)
+ val = *i_datap + (1 << (s->cbps[compno] - 1));
+ else
+ val = lrintf(*datap) + (1 << (s->cbps[compno] - 1));
+ val = av_clip(val, 0, (1 << s->cbps[compno]) - 1);
+ /* align 12 bit values in little-endian mode */
+ *dst = val << 4;
+ datap++;
+ i_datap++;
+ dst += s->ncomponents;
+ }
+ linel += picture->linesize[0] >> 1;
+ }
+ }
+ }
+ return 0;
+}
+
+static void jpeg2000_dec_cleanup(Jpeg2000DecoderContext *s)
+{
+ int tileno, compno;
+ for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++) {
+ for (compno = 0; compno < s->ncomponents; compno++) {
+ Jpeg2000Component *comp = s->tile[tileno].comp + compno;
+ Jpeg2000CodingStyle *codsty = s->tile[tileno].codsty + compno;
+
+ ff_jpeg2000_cleanup(comp, codsty);
+ }
+ av_freep(&s->tile[tileno].comp);
+ }
+ av_freep(&s->tile);
+}
+
+static int jpeg2000_read_main_headers(Jpeg2000DecoderContext *s)
+{
+ Jpeg2000CodingStyle *codsty = s->codsty;
+ Jpeg2000QuantStyle *qntsty = s->qntsty;
+ uint8_t *properties = s->properties;
+
+ for (;;) {
+ int len, ret = 0;
+ uint16_t marker;
+ const uint8_t *oldbuf;
+
+ if (s->buf_end - s->buf < 2) {
+ av_log(s->avctx, AV_LOG_ERROR, "Missing EOC\n");
+ break;
+ }
+
+ marker = bytestream_get_be16(&s->buf);
+ oldbuf = s->buf;
+
+ if (marker == JPEG2000_EOC)
+ break;
+
+ if (s->buf_end - s->buf < 2)
+ return AVERROR(EINVAL);
+ len = bytestream_get_be16(&s->buf);
+ switch (marker) {
+ case JPEG2000_SIZ:
+ ret = get_siz(s);
+ break;
+ case JPEG2000_COC:
+ ret = get_coc(s, codsty, properties);
+ break;
+ case JPEG2000_COD:
+ ret = get_cod(s, codsty, properties);
+ break;
+ case JPEG2000_QCC:
+ ret = get_qcc(s, len, qntsty, properties);
+ break;
+ case JPEG2000_QCD:
+ ret = get_qcd(s, len, qntsty, properties);
+ break;
+ case JPEG2000_SOT:
+ ret = get_sot(s, len);
+ break;
+ case JPEG2000_COM:
+ // the comment is ignored
+ s->buf += len - 2;
+ break;
+ case JPEG2000_TLM:
+ // Tile-part lengths
+ ret = get_tlm(s, len);
+ break;
+ default:
+ av_log(s->avctx, AV_LOG_ERROR,
+ "unsupported marker 0x%.4X at pos 0x%lX\n",
+ marker, (uint64_t)(s->buf - s->buf_start - 4));
+ s->buf += len - 2;
+ break;
+ }
+ if (((s->buf - oldbuf != len) && (marker != JPEG2000_SOT)) || ret) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "error during processing marker segment %.4x\n", marker);
+ return ret ? ret : -1;
+ }
+ }
+ return 0;
+}
+
+/* Read bit stream packets --> T2 operation. */
+static int jpeg2000_read_bitstream_packets(Jpeg2000DecoderContext *s)
+{
+ int ret = 0;
+ Jpeg2000Tile *tile = s->tile + s->curtileno;
+
+ if (ret = init_tile(s, s->curtileno))
+ return ret;
+ if (ret = jpeg2000_decode_packets(s, tile))
+ return ret;
+
+ return 0;
+}
+
+static int jp2_find_codestream(Jpeg2000DecoderContext *s)
+{
+ int32_t atom_size;
+ int found_codestream = 0, search_range = 10;
+
+ // Skip JPEG 2000 signature atom.
+ s->buf += 12;
+
+ while (!found_codestream && search_range) {
+ atom_size = AV_RB32(s->buf);
+ if (AV_RB32(s->buf + 4) == JP2_CODESTREAM) {
+ found_codestream = 1;
+ s->buf += 8;
+ } else {
+ s->buf += atom_size;
+ search_range--;
+ }
+ }
+
+ if (found_codestream)
+ return 1;
+ return 0;
+}
+
+static int jpeg2000_decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame, AVPacket *avpkt)
+{
+ Jpeg2000DecoderContext *s = avctx->priv_data;
+ AVFrame *picture = data;
+ int tileno, ret;
+
+ s->avctx = avctx;
+ s->buf = s->buf_start = avpkt->data;
+ s->buf_end = s->buf_start + avpkt->size;
+ s->curtileno = 0; // TODO: only one tile in DCI JP2K. to implement for more tiles
+
+ // reduction factor, i.e number of resolution levels to skip
+ s->reduction_factor = s->lowres;
+
+ ff_jpeg2000_init_tier1_luts();
+
+ if (s->buf_end - s->buf < 2)
+ return AVERROR(EINVAL);
+
+ // check if the image is in jp2 format
+ if ((AV_RB32(s->buf) == 12) &&
+ (AV_RB32(s->buf + 4) == JP2_SIG_TYPE) &&
+ (AV_RB32(s->buf + 8) == JP2_SIG_VALUE)) {
+ if (!jp2_find_codestream(s)) {
+ av_log(avctx, AV_LOG_ERROR,
+ "couldn't find jpeg2k codestream atom\n");
+ return -1;
+ }
+ }
+
+ if (bytestream_get_be16(&s->buf) != JPEG2000_SOC) {
+ av_log(avctx, AV_LOG_ERROR, "SOC marker not present\n");
+ return -1;
+ }
+ if (ret = jpeg2000_read_main_headers(s))
+ return ret;
+
+ /* get picture buffer */
+ if ((ret = ff_get_buffer(avctx, picture, 0)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "ff_get_buffer() failed\n");
+ return ret;
+ }
+ picture->pict_type = AV_PICTURE_TYPE_I;
+ picture->key_frame = 1;
+
+ if (ret = jpeg2000_read_bitstream_packets(s))
+ return ret;
+ for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++)
+ if (ret = jpeg2000_decode_tile(s, s->tile + tileno, picture))
+ return ret;
+ jpeg2000_dec_cleanup(s);
+
+ *got_frame = 1;
+
+ return s->buf - s->buf_start;
+}
+
+#define OFFSET(x) offsetof(Jpeg2000DecoderContext, x)
+#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
+
+static const AVOption options[] = {
+ { "lowres", "Lower the decoding resolution by a power of two",
+ OFFSET(lowres), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, JPEG2000_MAX_RESLEVELS - 1, VD },
+ { NULL },
+};
+
+static const AVProfile profiles[] = {
+ { FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0, "JPEG 2000 codestream restriction 0" },
+ { FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1, "JPEG 2000 codestream restriction 1" },
+ { FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION, "JPEG 2000 no codestream restrictions" },
+ { FF_PROFILE_JPEG2000_DCINEMA_2K, "JPEG 2000 digital cinema 2K" },
+ { FF_PROFILE_JPEG2000_DCINEMA_4K, "JPEG 2000 digital cinema 4K" },
+ { FF_PROFILE_UNKNOWN },
+};
+
+static const AVClass class = {
+ .class_name = "jpeg2000",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_jpeg2000_decoder = {
+ .name = "jpeg2000",
+ .long_name = NULL_IF_CONFIG_SMALL("JPEG 2000"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_JPEG2000,
+ .priv_data_size = sizeof(Jpeg2000DecoderContext),
+ .decode = jpeg2000_decode_frame,
+ .priv_class = &class,
+ .pix_fmts = (enum PixelFormat[]) { AV_PIX_FMT_XYZ12,
+ AV_PIX_FMT_GRAY8,
+ -1 },
+ .profiles = NULL_IF_CONFIG_SMALL(profiles)
+};
diff --git a/libavcodec/jpeg2000dwt.c b/libavcodec/jpeg2000dwt.c
new file mode 100644
index 0000000000..080b0a045d
--- /dev/null
+++ b/libavcodec/jpeg2000dwt.c
@@ -0,0 +1,371 @@
+/*
+ * Discrete wavelet transform
+ * Copyright (c) 2007 Kamil Nowosad
+ * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Discrete wavelet transform
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/mem.h"
+#include "jpeg2000dwt.h"
+#include "internal.h"
+
+/* Defines for 9/7 DWT lifting parameters.
+ * Parameters are in float. */
+#define F_LFTG_ALPHA 1.586134342059924f
+#define F_LFTG_BETA 0.052980118572961f
+#define F_LFTG_GAMMA 0.882911075530934f
+#define F_LFTG_DELTA 0.443506852043971f
+#define F_LFTG_K 1.230174104914001f
+#define F_LFTG_X 1.625732422f
+/* FIXME: Why use 1.625732422 instead of 1/F_LFTG_K?
+ * Incorrect value in JPEG2000 norm.
+ * see (ISO/IEC 15444:1 (version 2002) F.3.8.2 */
+
+/* Lifting parameters in integer format.
+ * Computed as param = (float param) * (1 << 16) */
+#define I_LFTG_ALPHA 103949
+#define I_LFTG_BETA 3472
+#define I_LFTG_GAMMA 57862
+#define I_LFTG_DELTA 29066
+#define I_LFTG_K 80621
+#define I_LFTG_X 106544
+
+
+static inline void extend53(int *p, int i0, int i1)
+{
+ p[i0 - 1] = p[i0 + 1];
+ p[i1] = p[i1 - 2];
+ p[i0 - 2] = p[i0 + 2];
+ p[i1 + 1] = p[i1 - 3];
+}
+
+static inline void extend97_float(float *p, int i0, int i1)
+{
+ int i;
+
+ for (i = 1; i <= 4; i++) {
+ p[i0 - i] = p[i0 + i];
+ p[i1 + i - 1] = p[i1 - i - 1];
+ }
+}
+
+static inline void extend97_int(int32_t *p, int i0, int i1)
+{
+ int i;
+
+ for (i = 1; i <= 4; i++) {
+ p[i0 - i] = p[i0 + i];
+ p[i1 + i - 1] = p[i1 - i - 1];
+ }
+}
+
+static void sr_1d53(int *p, int i0, int i1)
+{
+ int i;
+
+ if (i1 == i0 + 1)
+ return;
+
+ extend53(p, i0, i1);
+
+ for (i = i0 / 2; i < i1 / 2 + 1; i++)
+ p[2 * i] -= (p[2 * i - 1] + p[2 * i + 1] + 2) >> 2;
+ for (i = i0 / 2; i < i1 / 2; i++)
+ p[2 * i + 1] += (p[2 * i] + p[2 * i + 2]) >> 1;
+}
+
+static void dwt_decode53(DWTContext *s, int *t)
+{
+ int lev;
+ int w = s->linelen[s->ndeclevels - 1][0];
+ int32_t *line = s->i_linebuf;
+ line += 3;
+
+ for (lev = 0; lev < s->ndeclevels; lev++) {
+ int lh = s->linelen[lev][0],
+ lv = s->linelen[lev][1],
+ mh = s->mod[lev][0],
+ mv = s->mod[lev][1],
+ lp;
+ int *l;
+
+ // HOR_SD
+ l = line + mh;
+ for (lp = 0; lp < lv; lp++) {
+ int i, j = 0;
+ // copy with interleaving
+ for (i = mh; i < lh; i += 2, j++)
+ l[i] = t[w * lp + j];
+ for (i = 1 - mh; i < lh; i += 2, j++)
+ l[i] = t[w * lp + j];
+
+ sr_1d53(line, mh, mh + lh);
+
+ for (i = 0; i < lh; i++)
+ t[w * lp + i] = l[i];
+ }
+
+ // VER_SD
+ l = line + mv;
+ for (lp = 0; lp < lh; lp++) {
+ int i, j = 0;
+ // copy with interleaving
+ for (i = mv; i < lv; i += 2, j++)
+ l[i] = t[w * j + lp];
+ for (i = 1 - mv; i < lv; i += 2, j++)
+ l[i] = t[w * j + lp];
+
+ sr_1d53(line, mv, mv + lv);
+
+ for (i = 0; i < lv; i++)
+ t[w * i + lp] = l[i];
+ }
+ }
+}
+
+static void sr_1d97_float(float *p, int i0, int i1)
+{
+ int i;
+
+ if (i1 == i0 + 1)
+ return;
+
+ extend97_float(p, i0, i1);
+
+ /*step 1*/
+ for (i = i0 / 2 - 1; i < i1 / 2 + 2; i++)
+ p[2 * i] *= F_LFTG_K;
+ /* step 2*/
+ for (i = i0 / 2 - 2; i < i1 / 2 + 2; i++)
+ p[2 * i + 1] *= F_LFTG_X;
+ /* step 3*/
+ for (i = i0 / 2 - 1; i < i1 / 2 + 2; i++)
+ p[2 * i] -= F_LFTG_DELTA * (p[2 * i - 1] + p[2 * i + 1]);
+ /* step 4 */
+ for (i = i0 / 2 - 1; i < i1 / 2 + 1; i++)
+ p[2 * i + 1] -= F_LFTG_GAMMA * (p[2 * i] + p[2 * i + 2]);
+ /*step 5*/
+ for (i = i0 / 2; i < i1 / 2 + 1; i++)
+ p[2 * i] += F_LFTG_BETA * (p[2 * i - 1] + p[2 * i + 1]);
+ /* step 6 */
+ for (i = i0 / 2; i < i1 / 2; i++)
+ p[2 * i + 1] += F_LFTG_ALPHA * (p[2 * i] + p[2 * i + 2]);
+}
+
+static void dwt_decode97_float(DWTContext *s, float *t)
+{
+ int lev;
+ int w = s->linelen[s->ndeclevels - 1][0];
+ float *line = s->f_linebuf;
+ float *data = t;
+ /* position at index O of line range [0-5,w+5] cf. extend function */
+ line += 5;
+
+ for (lev = 0; lev < s->ndeclevels; lev++) {
+ int lh = s->linelen[lev][0],
+ lv = s->linelen[lev][1],
+ mh = s->mod[lev][0],
+ mv = s->mod[lev][1],
+ lp;
+ float *l;
+ // HOR_SD
+ l = line + mh;
+ for (lp = 0; lp < lv; lp++) {
+ int i, j = 0;
+ // copy with interleaving
+ for (i = mh; i < lh; i += 2, j++)
+ l[i] = data[w * lp + j];
+ for (i = 1 - mh; i < lh; i += 2, j++)
+ l[i] = data[w * lp + j];
+
+ sr_1d97_float(line, mh, mh + lh);
+
+ for (i = 0; i < lh; i++)
+ data[w * lp + i] = l[i];
+ }
+
+ // VER_SD
+ l = line + mv;
+ for (lp = 0; lp < lh; lp++) {
+ int i, j = 0;
+ // copy with interleaving
+ for (i = mv; i < lv; i += 2, j++)
+ l[i] = data[w * j + lp];
+ for (i = 1 - mv; i < lv; i += 2, j++)
+ l[i] = data[w * j + lp];
+
+ sr_1d97_float(line, mv, mv + lv);
+
+ for (i = 0; i < lv; i++)
+ data[w * i + lp] = l[i];
+ }
+ }
+}
+
+static void sr_1d97_int(int32_t *p, int i0, int i1)
+{
+ int i;
+
+ if (i1 == i0 + 1)
+ return;
+
+ extend97_int(p, i0, i1);
+
+ /*step 1*/
+ for (i = i0 / 2 - 1; i < i1 / 2 + 2; i++)
+ p[2 * i] = ((p[2 * i] * I_LFTG_K) + (1 << 15)) >> 16;
+ /* step 2*/
+ for (i = i0 / 2 - 2; i < i1 / 2 + 2; i++)
+ p[2 * i + 1] = ((p[2 * i + 1] * I_LFTG_X) + (1 << 15)) >> 16;
+ /* step 3*/
+ for (i = i0 / 2 - 1; i < i1 / 2 + 2; i++)
+ p[2 * i] -= (I_LFTG_DELTA * (p[2 * i - 1] + p[2 * i + 1]) + (1 << 15)) >> 16;
+ /* step 4 */
+ for (i = i0 / 2 - 1; i < i1 / 2 + 1; i++)
+ p[2 * i + 1] -= (I_LFTG_GAMMA * (p[2 * i] + p[2 * i + 2]) + (1 << 15)) >> 16;
+ /*step 5*/
+ for (i = i0 / 2; i < i1 / 2 + 1; i++)
+ p[2 * i] += (I_LFTG_BETA * (p[2 * i - 1] + p[2 * i + 1]) + (1 << 15)) >> 16;
+ /* step 6 */
+ for (i = i0 / 2; i < i1 / 2; i++)
+ p[2 * i + 1] += (I_LFTG_ALPHA * (p[2 * i] + p[2 * i + 2]) + (1 << 15)) >> 16;
+}
+
+static void dwt_decode97_int(DWTContext *s, int32_t *t)
+{
+ int lev;
+ int w = s->linelen[s->ndeclevels - 1][0];
+ int32_t *line = s->i_linebuf;
+ int32_t *data = t;
+ /* position at index O of line range [0-5,w+5] cf. extend function */
+ line += 5;
+
+ for (lev = 0; lev < s->ndeclevels; lev++) {
+ int lh = s->linelen[lev][0],
+ lv = s->linelen[lev][1],
+ mh = s->mod[lev][0],
+ mv = s->mod[lev][1],
+ lp;
+ int32_t *l;
+ // HOR_SD
+ l = line + mh;
+ for (lp = 0; lp < lv; lp++) {
+ int i, j = 0;
+ // copy with interleaving
+ for (i = mh; i < lh; i += 2, j++)
+ l[i] = data[w * lp + j];
+ for (i = 1 - mh; i < lh; i += 2, j++)
+ l[i] = data[w * lp + j];
+
+ sr_1d97_int(line, mh, mh + lh);
+
+ for (i = 0; i < lh; i++)
+ data[w * lp + i] = l[i];
+ }
+
+ // VER_SD
+ l = line + mv;
+ for (lp = 0; lp < lh; lp++) {
+ int i, j = 0;
+ // copy with interleaving
+ for (i = mv; i < lv; i += 2, j++)
+ l[i] = data[w * j + lp];
+ for (i = 1 - mv; i < lv; i += 2, j++)
+ l[i] = data[w * j + lp];
+
+ sr_1d97_int(line, mv, mv + lv);
+
+ for (i = 0; i < lv; i++)
+ data[w * i + lp] = l[i];
+ }
+ }
+}
+
+int ff_jpeg2000_dwt_init(DWTContext *s, uint16_t border[2][2],
+ int decomp_levels, int type)
+{
+ int i, j, lev = decomp_levels, maxlen,
+ b[2][2];
+
+ s->ndeclevels = decomp_levels;
+ s->type = type;
+
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 2; j++)
+ b[i][j] = border[i][j];
+
+ maxlen = FFMAX(b[0][1] - b[0][0],
+ b[1][1] - b[1][0]);
+ while (--lev >= 0)
+ for (i = 0; i < 2; i++) {
+ s->linelen[lev][i] = b[i][1] - b[i][0];
+ s->mod[lev][i] = b[i][0] & 1;
+ for (j = 0; j < 2; j++)
+ b[i][j] = (b[i][j] + 1) >> 1;
+ }
+ switch (type) {
+ case FF_DWT97:
+ s->f_linebuf = av_malloc((maxlen + 12) * sizeof(*s->f_linebuf));
+ if (!s->f_linebuf)
+ return AVERROR(ENOMEM);
+ break;
+ case FF_DWT97_INT:
+ s->i_linebuf = av_malloc((maxlen + 12) * sizeof(*s->i_linebuf));
+ if (!s->i_linebuf)
+ return AVERROR(ENOMEM);
+ break;
+ case FF_DWT53:
+ s->i_linebuf = av_malloc((maxlen + 6) * sizeof(*s->i_linebuf));
+ if (!s->i_linebuf)
+ return AVERROR(ENOMEM);
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+int ff_dwt_decode(DWTContext *s, void *t)
+{
+ switch (s->type) {
+ case FF_DWT97:
+ dwt_decode97_float(s, t);
+ break;
+ case FF_DWT97_INT:
+ dwt_decode97_int(s, t);
+ break;
+ case FF_DWT53:
+ dwt_decode53(s, t);
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+void ff_dwt_destroy(DWTContext *s)
+{
+ av_freep(&s->f_linebuf);
+ av_freep(&s->i_linebuf);
+}
diff --git a/libavcodec/jpeg2000dwt.h b/libavcodec/jpeg2000dwt.h
new file mode 100644
index 0000000000..2abfd15d64
--- /dev/null
+++ b/libavcodec/jpeg2000dwt.h
@@ -0,0 +1,64 @@
+/*
+ * Discrete wavelet transform
+ * Copyright (c) 2007 Kamil Nowosad
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_JPEG2000DWT_H
+#define AVCODEC_JPEG2000DWT_H
+
+/**
+ * @file
+ * Discrete wavelet transform
+ */
+
+#include <stdint.h>
+
+#define FF_DWT_MAX_DECLVLS 32 ///< max number of decomposition levels
+
+enum DWTType {
+ FF_DWT97,
+ FF_DWT53,
+ FF_DWT97_INT
+};
+
+typedef struct DWTContext {
+ /// line lengths { horizontal, vertical } in consecutive decomposition levels
+ uint16_t linelen[FF_DWT_MAX_DECLVLS][2];
+ uint8_t mod[FF_DWT_MAX_DECLVLS][2]; ///< coordinates (x0, y0) of decomp. levels mod 2
+ uint8_t ndeclevels; ///< number of decomposition levels
+ uint8_t type; ///< 0 for 9/7; 1 for 5/3
+ int32_t *i_linebuf; ///< int buffer used by transform
+ float *f_linebuf; ///< float buffer used by transform
+} DWTContext;
+
+/**
+ * Initialize DWT.
+ * @param s DWT context
+ * @param border coordinates of transformed region {{x0, x1}, {y0, y1}}
+ * @param decomp_levels number of decomposition levels
+ * @param type 0 for DWT 9/7; 1 for DWT 5/3
+ */
+int ff_jpeg2000_dwt_init(DWTContext *s, uint16_t border[2][2],
+ int decomp_levels, int type);
+
+int ff_dwt_decode(DWTContext *s, void *t);
+
+void ff_dwt_destroy(DWTContext *s);
+
+#endif /* AVCODEC_JPEG2000DWT_H */
diff --git a/libavcodec/mqc.c b/libavcodec/mqc.c
index 700b9574c1..288570d309 100644
--- a/libavcodec/mqc.c
+++ b/libavcodec/mqc.c
@@ -20,89 +20,93 @@
*/
/**
- * MQ-coder ecoder and decoder common functions
+ * MQ-coder common (decoder/encoder) functions
* @file
* @author Kamil Nowosad
*/
+#include <string.h>
+#include <stdint.h>
+
#include "mqc.h"
-typedef struct {
- uint16_t qe;
- uint8_t nmps;
- uint8_t nlps;
- uint8_t sw;
+/* MQ coder context state structure */
+typedef struct MqcCxState {
+ uint16_t qe;
+ uint8_t nmps;
+ uint8_t nlps;
+ uint8_t sw;
} MqcCxState;
-const static MqcCxState cx_states[47] = {
- {0x5601, 1, 1, 1},
- {0x3401, 2, 6, 0},
- {0x1801, 3, 9, 0},
- {0x0AC1, 4, 12, 0},
- {0x0521, 5, 29, 0},
- {0x0221, 38, 33, 0},
- {0x5601, 7, 6, 1},
- {0x5401, 8, 14, 0},
- {0x4801, 9, 14, 0},
- {0x3801, 10, 14, 0},
- {0x3001, 11, 17, 0},
- {0x2401, 12, 18, 0},
- {0x1C01, 13, 20, 0},
- {0x1601, 29, 21, 0},
- {0x5601, 15, 14, 1},
- {0x5401, 16, 14, 0},
- {0x5101, 17, 15, 0},
- {0x4801, 18, 16, 0},
- {0x3801, 19, 17, 0},
- {0x3401, 20, 18, 0},
- {0x3001, 21, 19, 0},
- {0x2801, 22, 19, 0},
- {0x2401, 23, 20, 0},
- {0x2201, 24, 21, 0},
- {0x1C01, 25, 22, 0},
- {0x1801, 26, 23, 0},
- {0x1601, 27, 24, 0},
- {0x1401, 28, 25, 0},
- {0x1201, 29, 26, 0},
- {0x1101, 30, 27, 0},
- {0x0AC1, 31, 28, 0},
- {0x09C1, 32, 29, 0},
- {0x08A1, 33, 30, 0},
- {0x0521, 34, 31, 0},
- {0x0441, 35, 32, 0},
- {0x02A1, 36, 33, 0},
- {0x0221, 37, 34, 0},
- {0x0141, 38, 35, 0},
- {0x0111, 39, 36, 0},
- {0x0085, 40, 37, 0},
- {0x0049, 41, 38, 0},
- {0x0025, 42, 39, 0},
- {0x0015, 43, 40, 0},
- {0x0009, 44, 41, 0},
- {0x0005, 45, 42, 0},
- {0x0001, 45, 43, 0},
- {0x5601, 46, 46, 0}
+static const MqcCxState cx_states[47] = {
+ { 0x5601, 1, 1, 1 },
+ { 0x3401, 2, 6, 0 },
+ { 0x1801, 3, 9, 0 },
+ { 0x0AC1, 4, 12, 0 },
+ { 0x0521, 5, 29, 0 },
+ { 0x0221, 38, 33, 0 },
+ { 0x5601, 7, 6, 1 },
+ { 0x5401, 8, 14, 0 },
+ { 0x4801, 9, 14, 0 },
+ { 0x3801, 10, 14, 0 },
+ { 0x3001, 11, 17, 0 },
+ { 0x2401, 12, 18, 0 },
+ { 0x1C01, 13, 20, 0 },
+ { 0x1601, 29, 21, 0 },
+ { 0x5601, 15, 14, 1 },
+ { 0x5401, 16, 14, 0 },
+ { 0x5101, 17, 15, 0 },
+ { 0x4801, 18, 16, 0 },
+ { 0x3801, 19, 17, 0 },
+ { 0x3401, 20, 18, 0 },
+ { 0x3001, 21, 19, 0 },
+ { 0x2801, 22, 19, 0 },
+ { 0x2401, 23, 20, 0 },
+ { 0x2201, 24, 21, 0 },
+ { 0x1C01, 25, 22, 0 },
+ { 0x1801, 26, 23, 0 },
+ { 0x1601, 27, 24, 0 },
+ { 0x1401, 28, 25, 0 },
+ { 0x1201, 29, 26, 0 },
+ { 0x1101, 30, 27, 0 },
+ { 0x0AC1, 31, 28, 0 },
+ { 0x09C1, 32, 29, 0 },
+ { 0x08A1, 33, 30, 0 },
+ { 0x0521, 34, 31, 0 },
+ { 0x0441, 35, 32, 0 },
+ { 0x02A1, 36, 33, 0 },
+ { 0x0221, 37, 34, 0 },
+ { 0x0141, 38, 35, 0 },
+ { 0x0111, 39, 36, 0 },
+ { 0x0085, 40, 37, 0 },
+ { 0x0049, 41, 38, 0 },
+ { 0x0025, 42, 39, 0 },
+ { 0x0015, 43, 40, 0 },
+ { 0x0009, 44, 41, 0 },
+ { 0x0005, 45, 42, 0 },
+ { 0x0001, 45, 43, 0 },
+ { 0x5601, 46, 46, 0 }
};
-uint16_t ff_mqc_qe [2*47];
-uint8_t ff_mqc_nlps[2*47];
-uint8_t ff_mqc_nmps[2*47];
+uint16_t ff_mqc_qe [2 * 47];
+uint8_t ff_mqc_nlps[2 * 47];
+uint8_t ff_mqc_nmps[2 * 47];
void ff_mqc_init_contexts(MqcState *mqc)
{
int i;
memset(mqc->cx_states, 0, sizeof(mqc->cx_states));
mqc->cx_states[MQC_CX_UNI] = 2 * 46;
- mqc->cx_states[MQC_CX_RL] = 2 * 3;
- mqc->cx_states[0] = 2 * 4;
+ mqc->cx_states[MQC_CX_RL] = 2 * 3;
+ mqc->cx_states[0] = 2 * 4;
- for (i = 0; i < 47; i++){
- ff_mqc_qe[2*i ] =
- ff_mqc_qe[2*i+1] = cx_states[i].qe;
+ for (i = 0; i < 47; i++) {
+ ff_mqc_qe[2 * i] =
+ ff_mqc_qe[2 * i + 1] = cx_states[i].qe;
- ff_mqc_nlps[2*i ] = 2*cx_states[i].nlps + cx_states[i].sw;
- ff_mqc_nlps[2*i+1] = 2*cx_states[i].nlps + 1 - cx_states[i].sw;
- ff_mqc_nmps[2*i ] = 2*cx_states[i].nmps;
- ff_mqc_nmps[2*i+1] = 2*cx_states[i].nmps + 1;
+ ff_mqc_nlps[2 * i] = 2 * cx_states[i].nlps + cx_states[i].sw;
+ ff_mqc_nlps[2 * i + 1] = 2 * cx_states[i].nlps + 1 - cx_states[i].sw;
+ ff_mqc_nmps[2 * i] = 2 * cx_states[i].nmps;
+ ff_mqc_nmps[2 * i + 1] = 2 * cx_states[i].nmps + 1;
}
}
diff --git a/libavcodec/mqc.h b/libavcodec/mqc.h
index b28c13ec48..a0112d1159 100644
--- a/libavcodec/mqc.h
+++ b/libavcodec/mqc.h
@@ -1,5 +1,5 @@
/*
- * MQ-coder
+ * MQ-coder: structures, common and decoder functions
* Copyright (c) 2007 Kamil Nowosad
*
* This file is part of FFmpeg.
@@ -28,16 +28,16 @@
* @author Kamil Nowosad
*/
-#include "avcodec.h"
+#include <stdint.h>
#define MQC_CX_UNI 17
#define MQC_CX_RL 18
-extern uint16_t ff_mqc_qe[2*47];
-extern uint8_t ff_mqc_nlps[2*47];
-extern uint8_t ff_mqc_nmps[2*47];
+extern uint16_t ff_mqc_qe[2 * 47];
+extern uint8_t ff_mqc_nlps[2 * 47];
+extern uint8_t ff_mqc_nmps[2 * 47];
-typedef struct {
+typedef struct MqcState {
uint8_t *bp, *bpstart;
unsigned int a;
unsigned int c;
@@ -61,15 +61,27 @@ int ff_mqc_flush(MqcState *mqc);
/* decoder */
-/** initialize the decoder */
+/**
+ * Initialize MQ-decoder.
+ * @param mqc MQ decoder state
+ * @param bp byte poiter
+ */
void ff_mqc_initdec(MqcState *mqc, uint8_t *bp);
-/** returns decoded bit with context cx */
+/**
+ * MQ decoder.
+ * @param mqc MQ decoder state
+ * @param cxstate Context
+ * @return Decision (0 ot 1)
+ */
int ff_mqc_decode(MqcState *mqc, uint8_t *cxstate);
/* common */
-/** initialize the contexts */
+/**
+ * MQ-coder context initialisations.
+ * @param mqc MQ-coder context
+ */
void ff_mqc_init_contexts(MqcState *mqc);
#endif /* AVCODEC_MQC_H */
diff --git a/libavcodec/mqcdec.c b/libavcodec/mqcdec.c
index 56e22f88c7..362506992a 100644
--- a/libavcodec/mqcdec.c
+++ b/libavcodec/mqcdec.c
@@ -29,14 +29,14 @@
static void bytein(MqcState *mqc)
{
- if (*mqc->bp == 0xff){
- if (*(mqc->bp+1) > 0x8f)
+ if (*mqc->bp == 0xff) {
+ if (*(mqc->bp + 1) > 0x8f)
mqc->c++;
- else{
+ else {
mqc->bp++;
mqc->c += 2 + 0xfe00 - (*mqc->bp << 9);
}
- } else{
+ } else {
mqc->bp++;
mqc->c += 1 + 0xff00 - (*mqc->bp << 8);
}
@@ -45,20 +45,20 @@ static void bytein(MqcState *mqc)
static int exchange(MqcState *mqc, uint8_t *cxstate, int lps)
{
int d;
- if ((mqc->a < ff_mqc_qe[*cxstate]) ^ (!lps)){
+ if ((mqc->a < ff_mqc_qe[*cxstate]) ^ (!lps)) {
if (lps)
mqc->a = ff_mqc_qe[*cxstate];
d = *cxstate & 1;
*cxstate = ff_mqc_nmps[*cxstate];
- } else{
+ } else {
if (lps)
mqc->a = ff_mqc_qe[*cxstate];
d = 1 - (*cxstate & 1);
*cxstate = ff_mqc_nlps[*cxstate];
}
- // renormd:
- do{
- if (!(mqc->c & 0xff)){
+ // do RENORMD: see ISO/IEC 15444-1:2002 §C.3.3
+ do {
+ if (!(mqc->c & 0xff)) {
mqc->c -= 0x100;
bytein(mqc);
}
@@ -72,7 +72,7 @@ void ff_mqc_initdec(MqcState *mqc, uint8_t *bp)
{
ff_mqc_init_contexts(mqc);
mqc->bp = bp;
- mqc->c = (*mqc->bp ^ 0xff) << 16;
+ mqc->c = (*mqc->bp ^ 0xff) << 16;
bytein(mqc);
mqc->c = mqc->c << 7;
mqc->a = 0x8000;
@@ -81,7 +81,7 @@ void ff_mqc_initdec(MqcState *mqc, uint8_t *bp)
int ff_mqc_decode(MqcState *mqc, uint8_t *cxstate)
{
mqc->a -= ff_mqc_qe[*cxstate];
- if ((mqc->c >> 16) < mqc->a){
+ if ((mqc->c >> 16) < mqc->a) {
if (mqc->a & 0x8000)
return *cxstate & 1;
else
diff --git a/libavcodec/version.h b/libavcodec/version.h
index b1918f18de..d6f7b8eb2b 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -29,7 +29,7 @@
#include "libavutil/avutil.h"
#define LIBAVCODEC_VERSION_MAJOR 55
-#define LIBAVCODEC_VERSION_MINOR 5
+#define LIBAVCODEC_VERSION_MINOR 6
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
diff --git a/tests/fate/video.mak b/tests/fate/video.mak
index 50c29c4707..b98f1f06ba 100644
--- a/tests/fate/video.mak
+++ b/tests/fate/video.mak
@@ -156,6 +156,9 @@ fate-interplay-mve-8bit: CMD = framecrc -i $(SAMPLES)/interplay-mve/interplay-lo
FATE_VIDEO-$(call DEMDEC, IPMOVIE, INTERPLAY_VIDEO) += fate-interplay-mve-16bit
fate-interplay-mve-16bit: CMD = framecrc -i $(SAMPLES)/interplay-mve/descent3-level5-16bit-partial.mve -pix_fmt rgb24 -an
+FATE_VIDEO-$(call DEMDEC, MXF, JPEG2000) += fate-jpeg2000-dcinema
+fate-jpeg2000-dcinema: CMD = framecrc -flags +bitexact -i $(SAMPLES)/jpeg2000/chiens_dcinema2K.mxf
+
FATE_VIDEO-$(call DEMDEC, JV, JV) += fate-jv
fate-jv: CMD = framecrc -i $(SAMPLES)/jv/intro.jv -pix_fmt rgb24 -an
diff --git a/tests/ref/fate/jpeg2000-dcinema b/tests/ref/fate/jpeg2000-dcinema
new file mode 100644
index 0000000000..940759aeb4
--- /dev/null
+++ b/tests/ref/fate/jpeg2000-dcinema
@@ -0,0 +1,3 @@
+#tb 0: 1/24
+0, 0, 0, 1, 12441600, 0xf0de508b
+0, 1, 1, 1, 12441600, 0x8e50c249
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