+/*
+ * Copyright (C) 2015 Pedro Arthur <bygrandao@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
#include "swscale_internal.h"
static void free_lines(SwsSlice *s)
int index;
int num_ydesc;
int num_cdesc;
+ int num_vdesc = isPlanarYUV(c->dstFormat) && !isGray(c->dstFormat) ? 2 : 1;
int need_lum_conv = c->lumToYV12 || c->readLumPlanar || c->alpToYV12 || c->readAlpPlanar;
int need_chr_conv = c->chrToYV12 || c->readChrPlanar;
+ int need_gamma = c->is_internal_gamma;
int srcIdx, dstIdx;
int dst_stride = FFALIGN(c->dstW * sizeof(int16_t) + 66, 16);
num_ydesc = need_lum_conv ? 2 : 1;
num_cdesc = need_chr_conv ? 2 : 1;
- c->numSlice = FFMAX(num_ydesc, num_cdesc) + 1;
- c->numDesc = num_ydesc + num_cdesc;
- c->descIndex[0] = num_ydesc;
- c->descIndex[1] = num_ydesc + num_cdesc;
+ c->numSlice = FFMAX(num_ydesc, num_cdesc) + 2;
+ c->numDesc = num_ydesc + num_cdesc + num_vdesc + (need_gamma ? 2 : 0);
+ c->descIndex[0] = num_ydesc + (need_gamma ? 1 : 0);
+ c->descIndex[1] = num_ydesc + num_cdesc + (need_gamma ? 1 : 0);
res = alloc_slice(&c->slice[0], c->srcFormat, c->srcH, c->chrSrcH, c->chrSrcHSubSample, c->chrSrcVSubSample, 0);
if (res < 0) goto cleanup;
- for (i = 1; i < c->numSlice-1; ++i) {
+ for (i = 1; i < c->numSlice-2; ++i) {
res = alloc_slice(&c->slice[i], c->srcFormat, c->vLumFilterSize + MAX_LINES_AHEAD, c->vChrFilterSize + MAX_LINES_AHEAD, c->chrSrcHSubSample, c->chrSrcVSubSample, 0);
if (res < 0) goto cleanup;
res = alloc_lines(&c->slice[i], FFALIGN(c->srcW*2+78, 16), c->srcW);
if (res < 0) goto cleanup;
}
+ // horizontal scaler output
res = alloc_slice(&c->slice[i], c->srcFormat, c->vLumFilterSize + MAX_LINES_AHEAD, c->vChrFilterSize + MAX_LINES_AHEAD, c->chrDstHSubSample, c->chrDstVSubSample, 1);
if (res < 0) goto cleanup;
res = alloc_lines(&c->slice[i], dst_stride, c->dstW);
fill_ones(&c->slice[i], dst_stride>>1, c->dstBpc == 16);
+ // vertical scaler output
+ ++i;
+ res = alloc_slice(&c->slice[i], c->dstFormat, c->dstH, c->chrDstH, c->chrDstHSubSample, c->chrDstVSubSample, 0);
+ if (res < 0) goto cleanup;
+
index = 0;
srcIdx = 0;
dstIdx = 1;
+ if (need_gamma) {
+ res = ff_init_gamma_convert(c->desc + index, c->slice + srcIdx, c->inv_gamma);
+ if (res < 0) goto cleanup;
+ ++index;
+ }
+
if (need_lum_conv) {
- ff_init_desc_fmt_convert(&c->desc[index], &c->slice[srcIdx], &c->slice[dstIdx], pal);
+ res = ff_init_desc_fmt_convert(&c->desc[index], &c->slice[srcIdx], &c->slice[dstIdx], pal);
+ if (res < 0) goto cleanup;
c->desc[index].alpha = c->alpPixBuf != 0;
++index;
srcIdx = dstIdx;
dstIdx = FFMAX(num_ydesc, num_cdesc);
- ff_init_desc_hscale(&c->desc[index], &c->slice[index], &c->slice[dstIdx], c->hLumFilter, c->hLumFilterPos, c->hLumFilterSize, c->lumXInc);
+ res = ff_init_desc_hscale(&c->desc[index], &c->slice[srcIdx], &c->slice[dstIdx], c->hLumFilter, c->hLumFilterPos, c->hLumFilterSize, c->lumXInc);
+ if (res < 0) goto cleanup;
c->desc[index].alpha = c->alpPixBuf != 0;
srcIdx = 0;
dstIdx = 1;
if (need_chr_conv) {
- ff_init_desc_cfmt_convert(&c->desc[index], &c->slice[srcIdx], &c->slice[dstIdx], pal);
+ res = ff_init_desc_cfmt_convert(&c->desc[index], &c->slice[srcIdx], &c->slice[dstIdx], pal);
+ if (res < 0) goto cleanup;
++index;
srcIdx = dstIdx;
}
dstIdx = FFMAX(num_ydesc, num_cdesc);
if (c->needs_hcscale)
- ff_init_desc_chscale(&c->desc[index], &c->slice[srcIdx], &c->slice[dstIdx], c->hChrFilter, c->hChrFilterPos, c->hChrFilterSize, c->chrXInc);
+ res = ff_init_desc_chscale(&c->desc[index], &c->slice[srcIdx], &c->slice[dstIdx], c->hChrFilter, c->hChrFilterPos, c->hChrFilterSize, c->chrXInc);
else
- ff_init_desc_no_chr(&c->desc[index], &c->slice[srcIdx], &c->slice[dstIdx]);
+ res = ff_init_desc_no_chr(&c->desc[index], &c->slice[srcIdx], &c->slice[dstIdx]);
+ if (res < 0) goto cleanup;
+ }
+
+ ++index;
+ {
+ srcIdx = c->numSlice - 2;
+ dstIdx = c->numSlice - 1;
+ res = ff_init_vscale(c, c->desc + index, c->slice + srcIdx, c->slice + dstIdx);
+ if (res < 0) goto cleanup;
+ }
+
+ ++index;
+ if (need_gamma) {
+ res = ff_init_gamma_convert(c->desc + index, c->slice + dstIdx, c->gamma);
+ if (res < 0) goto cleanup;
}
return 0;