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avcodec/iff: support for byterun1 ACBM compression

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This is apparently same as no compression.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2017-02-12 13:26:28 +01:00
parent 8192e05cd2
commit 5979fb0b1e
1 changed files with 30 additions and 0 deletions
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30
libavcodec/iff.c
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@ -1617,6 +1617,8 @@ static int decode_frame(AVCodecContext *avctx,
}
} else
return unsupported(avctx);
} else {
return unsupported(avctx);
}
break;
case 0x1:
@ -1691,6 +1693,34 @@ static int decode_frame(AVCodecContext *avctx,
decode_deep_rle32(frame->data[0], buf, buf_size, avctx->width, avctx->height, frame->linesize[0]);
else
return unsupported(avctx);
} else if (avctx->codec_tag == MKTAG('A', 'C', 'B', 'M')) {
if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
memset(frame->data[0], 0, avctx->height * frame->linesize[0]);
for (plane = 0; plane < s->bpp; plane++) {
for (y = 0; y < avctx->height && buf < buf_end; y++) {
uint8_t *row = &frame->data[0][y * frame->linesize[0]];
decodeplane8(row, buf, FFMIN(s->planesize, buf_end - buf), plane);
buf += s->planesize;
}
}
} else if (s->ham) { // HAM to AV_PIX_FMT_BGR32
memset(frame->data[0], 0, avctx->height * frame->linesize[0]);
for (y = 0; y < avctx->height; y++) {
uint8_t *row = &frame->data[0][y * 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 {
return unsupported(avctx);
}
} else {
return unsupported(avctx);
}
break;
case 0x2: