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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-05-26 21:50:17 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-05-26 22:29:11 +0200 |
| commit | bd89b2b22ac71aae4ec5c6a27adb88d877b7b76e (patch) | |
| tree | 85c5595eeb0c5df29299b1f00bf2cda334d7b160 /libavcodec/j2kenc.c | |
| parent | cb39dfb87009106395689373f7c1bd0df1dead17 (diff) | |
| download | ffmpeg-bd89b2b22ac71aae4ec5c6a27adb88d877b7b76e.tar.gz | |
j2k/jpeg2000: log2_prec size cleanup
This also changes the cblk size storage method to what jpeg2000 uses
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/j2kenc.c')
| -rw-r--r-- | libavcodec/j2kenc.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/libavcodec/j2kenc.c b/libavcodec/j2kenc.c index c8ff66e79a..4c047c3a67 100644 --- a/libavcodec/j2kenc.c +++ b/libavcodec/j2kenc.c @@ -821,7 +821,7 @@ static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos; yy0 = bandno == 0 ? 0 : comp->reslevel[reslevelno-1].coord[1][1] - comp->reslevel[reslevelno-1].coord[1][0]; y0 = yy0; - yy1 = FFMIN(ff_jpeg2000_ceildiv(band->coord[1][0] + 1, band->codeblock_height) * band->codeblock_height, + yy1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[1][0] + 1, band->log2_cblk_height) << band->log2_cblk_height, band->coord[1][1]) - band->coord[1][0] + yy0; if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1]) @@ -835,7 +835,7 @@ static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno else xx0 = comp->reslevel[reslevelno-1].coord[0][1] - comp->reslevel[reslevelno-1].coord[0][0]; x0 = xx0; - xx1 = FFMIN(ff_jpeg2000_ceildiv(band->coord[0][0] + 1, band->codeblock_width) * band->codeblock_width, + xx1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[0][0] + 1, band->log2_cblk_width) << band->log2_cblk_width, band->coord[0][1]) - band->coord[0][0] + xx0; for (cblkx = 0; cblkx < band->cblknx; cblkx++, cblkno++){ @@ -860,10 +860,10 @@ static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno encode_cblk(s, &t1, band->cblk + cblkno, tile, xx1 - xx0, yy1 - yy0, bandpos, codsty->nreslevels - reslevelno - 1); xx0 = xx1; - xx1 = FFMIN(xx1 + band->codeblock_width, band->coord[0][1] - band->coord[0][0] + x0); + xx1 = FFMIN(xx1 + (1 << band->log2_cblk_width), band->coord[0][1] - band->coord[0][0] + x0); } yy0 = yy1; - yy1 = FFMIN(yy1 + band->codeblock_height, band->coord[1][1] - band->coord[1][0] + y0); + yy1 = FFMIN(yy1 + (1 << band->log2_cblk_height), band->coord[1][1] - band->coord[1][0] + y0); } } } @@ -969,8 +969,8 @@ static av_cold int j2kenc_init(AVCodecContext *avctx) // defaults: // TODO: implement setting non-standard precinct size - codsty->log2_prec_width = 15; - codsty->log2_prec_height = 15; + memset(codsty->log2_prec_widths , 15, sizeof(codsty->log2_prec_widths )); + memset(codsty->log2_prec_heights, 15, sizeof(codsty->log2_prec_heights)); codsty->nreslevels = 7; codsty->log2_cblk_width = 4; codsty->log2_cblk_height = 4; |