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https://git.videolan.org/git/ffmpeg.git
synced 2024-08-07 01:54:17 +02:00
jpeg2000/j2k: merge non functional changes
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
parent
941a8efae2
commit
3f714d1ffd
@ -213,6 +213,7 @@ static int get_siz(Jpeg2000DecoderContext *s)
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s->reduction_factor);
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s->avctx->height = ff_jpeg2000_ceildivpow2(s->height - s->image_offset_y,
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s->reduction_factor);
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switch(s->ncomponents) {
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case 1:
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if (s->precision > 8)
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@ -426,7 +427,7 @@ static int get_qcc(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q,
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return get_qcx(s, n - 1, q + compno);
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}
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/** get start of tile segment */
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/* get start of tile segment */
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static int get_sot(Jpeg2000DecoderContext *s)
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{
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if (bytestream2_get_bytes_left(&s->g) < 8)
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@ -525,7 +526,7 @@ static int init_tile(Jpeg2000DecoderContext *s, int tileno)
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return 0;
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}
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/** read the number of coding passes */
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/* read the number of coding passes */
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static int getnpasses(Jpeg2000DecoderContext *s)
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{
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int num;
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@ -552,10 +553,10 @@ static int getlblockinc(Jpeg2000DecoderContext *s)
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return res;
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}
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static int decode_packet(Jpeg2000DecoderContext *s,
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Jpeg2000CodingStyle *codsty,
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Jpeg2000ResLevel *rlevel, int precno,
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int layno, uint8_t *expn, int numgbits)
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static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s,
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Jpeg2000CodingStyle *codsty,
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Jpeg2000ResLevel *rlevel, int precno,
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int layno, uint8_t *expn, int numgbits)
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{
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int bandno, cblkno, ret, nb_code_blocks;
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@ -653,14 +654,13 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
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Jpeg2000ResLevel *rlevel = tile->comp[compno].reslevel +
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reslevelno;
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ok_reslevel = 1;
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for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++) {
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if (decode_packet(s,
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codsty, rlevel,
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precno, layno,
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qntsty->expn + (reslevelno ? 3*(reslevelno-1)+1 : 0),
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qntsty->nguardbits))
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for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++)
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if (jpeg2000_decode_packet(s,
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codsty, rlevel,
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precno, layno,
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qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0),
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qntsty->nguardbits))
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return -1;
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}
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}
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}
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}
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@ -691,7 +691,8 @@ static void decode_sigpass(Jpeg2000T1Context *t1, int width, int height,
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t1->data[y][x] = (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ^ xorbit) ?
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-mask : mask;
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ff_jpeg2000_set_significance(t1, x, y, t1->data[y][x] < 0);
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ff_jpeg2000_set_significance(t1, x, y,
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t1->data[y][x] < 0);
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}
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t1->flags[y + 1][x + 1] |= JPEG2000_T1_VIS;
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}
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@ -792,7 +793,7 @@ static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
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int vert_causal_ctx_csty_symbol = JPEG2000_CBLK_VSC & codsty->cblk_style;
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for (y = 0; y < height+2; y++)
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memset(t1->flags[y], 0, (width+2)*sizeof(int));
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memset(t1->flags[y], 0, (width + 2)*sizeof(int));
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for (y = 0; y < height; y++)
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memset(t1->data[y], 0, width*sizeof(int));
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@ -804,16 +805,16 @@ static int decode_cblk(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty,
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while (passno--) {
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switch(pass_t) {
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case 0:
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decode_sigpass(t1, width, height, bpno+1, bandpos,
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decode_sigpass(t1, width, height, bpno + 1, bandpos,
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bpass_csty_symbol && (clnpass_cnt >= 4), vert_causal_ctx_csty_symbol);
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break;
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case 1:
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decode_refpass(t1, width, height, bpno+1);
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decode_refpass(t1, width, height, bpno + 1);
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if (bpass_csty_symbol && clnpass_cnt >= 4)
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ff_mqc_initdec(&t1->mqc, cblk->data);
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break;
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case 2:
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decode_clnpass(s, t1, width, height, bpno+1, bandpos,
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decode_clnpass(s, t1, width, height, bpno + 1, bandpos,
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codsty->cblk_style & JPEG2000_CBLK_SEGSYM, vert_causal_ctx_csty_symbol);
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clnpass_cnt = clnpass_cnt + 1;
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if (bpass_csty_symbol && clnpass_cnt >= 4)
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@ -921,15 +922,16 @@ static void mct_decode(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
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*src[1]++ = i1;
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*src[2]++ = i2;
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}
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break;
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}
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}
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static int decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
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AVFrame *picture)
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)
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static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
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AVFrame *picture)
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{
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int compno, reslevelno, bandno;
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int x, y;
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uint8_t *line;
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Jpeg2000T1Context t1;
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@ -1066,14 +1068,16 @@ static void jpeg2000_dec_cleanup(Jpeg2000DecoderContext *s)
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av_freep(&s->tile);
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}
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static int decode_codestream(Jpeg2000DecoderContext *s)
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static int jpeg2000_decode_codestream(Jpeg2000DecoderContext *s)
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{
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Jpeg2000CodingStyle *codsty = s->codsty;
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Jpeg2000QuantStyle *qntsty = s->qntsty;
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uint8_t *properties = s->properties;
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for (;;) {
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int oldpos, marker, len, ret = 0;
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int len, ret = 0;
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int marker;
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int oldpos;
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if (bytestream2_get_bytes_left(&s->g) < 2) {
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av_log(s->avctx, AV_LOG_ERROR, "Missing EOC\n");
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@ -1081,7 +1085,6 @@ static int decode_codestream(Jpeg2000DecoderContext *s)
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}
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marker = bytestream2_get_be16u(&s->g);
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av_dlog(s->avctx, "marker 0x%.4X at pos 0x%x\n", marker, bytestream2_tell(&s->g) - 4);
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oldpos = bytestream2_tell(&s->g);
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if (marker == JPEG2000_SOD) {
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@ -1137,7 +1140,7 @@ static int decode_codestream(Jpeg2000DecoderContext *s)
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break;
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default:
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av_log(s->avctx, AV_LOG_ERROR,
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"unsupported marker 0x%.4X at pos 0x%x\n",
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"unsupported marker 0x%.4X at pos 0x%X\n",
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marker, bytestream2_tell(&s->g) - 4);
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bytestream2_skip(&s->g, len - 2);
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break;
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@ -1214,11 +1217,11 @@ static int jpeg2000_decode_frame(AVCodecContext *avctx, void *data,
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ret = -1;
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goto err_out;
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}
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if (ret = decode_codestream(s))
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if (ret = jpeg2000_decode_codestream(s))
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goto err_out;
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for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++)
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if (ret = decode_tile(s, s->tile + tileno, s->picture))
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if (ret = jpeg2000_decode_tile(s, s->tile + tileno, s->picture))
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goto err_out;
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jpeg2000_dec_cleanup(s);
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@ -601,6 +601,7 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s,
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if (band->coord[0][0] == band->coord[0][1] ||
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band->coord[1][0] == band->coord[1][1])
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continue;
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nb_code_blocks = prec->nb_codeblocks_height *
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prec->nb_codeblocks_width;
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for (cblkno = 0; cblkno < nb_code_blocks; cblkno++) {
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@ -1020,8 +1021,8 @@ static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
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uint8_t *line;
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Jpeg2000T1Context t1;
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/* Loop on tile components */
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/* Loop on tile components */
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for (compno = 0; compno < s->ncomponents; compno++) {
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Jpeg2000Component *comp = tile->comp + compno;
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Jpeg2000CodingStyle *codsty = tile->codsty + compno;
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@ -1075,6 +1076,7 @@ static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile,
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Jpeg2000Component *comp = tile->comp + compno;
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float *datap = comp->f_data;
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int32_t *i_datap = comp->i_data;
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y = tile->comp[compno].coord[1][0] - s->image_offset_y;
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line = picture->data[0] + y * picture->linesize[0];
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for (; y < tile->comp[compno].coord[1][1] - s->image_offset_y; y += s->cdy[compno]) {
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