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| author | Michael Niedermayer <michaelni@gmx.at> | 2015-06-13 12:38:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-06-13 13:09:13 +0200 |
| commit | 7c244349fc1443a0dc349fce9907b01c03383b09 (patch) | |
| tree | e58f7813853dd5e406d4b430b8e022d360a8bfd7 /libavcodec/jpeg2000dec.c | |
| parent | 86efe83177cd1aa8bede79f3f87721585129872a (diff) | |
| download | ffmpeg-7c244349fc1443a0dc349fce9907b01c03383b09.tar.gz | |
avcodec/jpeg2000dec: Factorize component out of CPRL loop
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/jpeg2000dec.c')
| -rw-r--r-- | libavcodec/jpeg2000dec.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index f502151095..46b9155829 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -961,6 +961,7 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile case JPEG2000_PGOD_CPRL: for (compno = 0; compno < s->ncomponents; compno++) { + Jpeg2000Component *comp = tile->comp + compno; Jpeg2000CodingStyle *codsty = tile->codsty + compno; Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; int step_x = 32; @@ -968,7 +969,7 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) { uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r - Jpeg2000ResLevel *rlevel = tile->comp[compno].reslevel + reslevelno; + Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno); step_y = FFMIN(step_y, rlevel->log2_prec_height + reducedresno); } @@ -980,7 +981,7 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile 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; + Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; if (!((y % (1 << (rlevel->log2_prec_height + reducedresno)) == 0) || (y == 0))) // TODO: 2nd condition simplified as try0 always =0 for dcinema |