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HAM6/HAM8 support for IFF ACBM decoder

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Based on patch by ami_stuff

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Peter Ross 2011-11-27 12:10:38 +11:00 committed by Michael Niedermayer
parent b488679510
commit 3d977edb04
1 changed files with 13 additions and 0 deletions
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13
libavcodec/iff.c
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@ -450,6 +450,19 @@ static int decode_frame_ilbm(AVCodecContext *avctx,
buf += s->planesize;
}
}
} else if (s->ham) { // HAM to PIX_FMT_BGR32
memset(s->frame.data[0], 0, avctx->height * s->frame.linesize[0]);
for(y = 0; y < avctx->height; y++) {
uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
memset(s->ham_buf, 0, s->planesize * 8);
for (plane = 0; plane < s->bpp; plane++) {
const uint8_t * start = buf + (plane * avctx->height + y) * s->planesize;
if (start >= buf_end)
break;
decodeplane8(s->ham_buf, start, FFMIN(s->planesize, buf_end - start), plane);
}
decode_ham_plane32((uint32_t *) row, s->ham_buf, s->ham_palbuf, s->planesize);
}
}
} else if (avctx->codec_tag == MKTAG('I','L','B','M')) { // interleaved
if (avctx->pix_fmt == PIX_FMT_PAL8 || avctx->pix_fmt == PIX_FMT_GRAY8) {