diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2013-07-08 00:58:40 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-07-21 04:16:53 +0200 |
| commit | 1434df3b93fde086be729d174ffbbee1e25792b3 (patch) | |
| tree | d2b19912de89432776d3f6531354553b3bbc9a69 /libavcodec/jpeg2000dec.c | |
| parent | 0c480bcfd932ea977db934322b07cf03a39c308d (diff) | |
jpeg2000dec: Support non subsampled 9-16bit planar pixel formats
This applies changes similar to fc6de70c44be05eb0368ab519bfb790431d8dee5
to the >8bit codepath
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/jpeg2000dec.c')
| -rw-r--r-- | libavcodec/jpeg2000dec.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index f94d9a32df..c6f6f6c9cb 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -1292,14 +1292,20 @@ static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile, uint16_t *linel; int cbps = s->cbps[compno]; int w = tile->comp[compno].coord[0][1] - s->image_offset_x; + int planar = !!picture->data[2]; + int pixelsize = planar ? 1 : s->ncomponents; + int plane = 0; + + if (planar) + plane = s->cdef[compno] ? s->cdef[compno]-1 : (s->ncomponents-1); y = tile->comp[compno].coord[1][0] - s->image_offset_y; - linel = (uint16_t *)picture->data[0] + y * (picture->linesize[0] >> 1); + linel = (uint16_t *)picture->data[plane] + y * (picture->linesize[plane] >> 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); + dst = linel + (x * pixelsize + compno*!planar); if (codsty->transform == FF_DWT97) { for (; x < w; x += s-> cdx[compno]) { int val = lrintf(*datap) + (1 << (cbps - 1)); @@ -1308,7 +1314,7 @@ static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile, /* align 12 bit values in little-endian mode */ *dst = val << (16 - cbps); datap++; - dst += s->ncomponents; + dst += pixelsize; } } else { for (; x < w; x += s-> cdx[compno]) { @@ -1318,10 +1324,10 @@ static int jpeg2000_decode_tile(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile, /* align 12 bit values in little-endian mode */ *dst = val << (16 - cbps); i_datap++; - dst += s->ncomponents; + dst += pixelsize; } } - linel += picture->linesize[0] >> 1; + linel += picture->linesize[plane] >> 1; } } } |