CoCalc -- swscale

05. Matplotlib / ffmpeg-3.0 / libswscale / swscale_unscaled.c
⁵²⁸⁶⁷ views
1
/*
2
 * Copyright (C) 2001-2011 Michael Niedermayer <[email protected]>
3
 *
4
 * This file is part of FFmpeg.
5
 *
6
 * FFmpeg is free software; you can redistribute it and/or
7
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9
 * version 2.1 of the License, or (at your option) any later version.
10
 *
11
 * FFmpeg is distributed in the hope that it will be useful,
12
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
 * Lesser General Public License for more details.
15
 *
16
 * You should have received a copy of the GNU Lesser General Public
17
 * License along with FFmpeg; if not, write to the Free Software
18
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
 */
20

21
#include <inttypes.h>
22
#include <string.h>
23
#include <math.h>
24
#include <stdio.h>
25
#include "config.h"
26
#include "swscale.h"
27
#include "swscale_internal.h"
28
#include "rgb2rgb.h"
29
#include "libavutil/intreadwrite.h"
30
#include "libavutil/cpu.h"
31
#include "libavutil/avutil.h"
32
#include "libavutil/mathematics.h"
33
#include "libavutil/bswap.h"
34
#include "libavutil/pixdesc.h"
35
#include "libavutil/avassert.h"
36

37
DECLARE_ALIGNED(8, static const uint8_t, dithers)[8][8][8]={
38
{
39
  {   0,  1,  0,  1,  0,  1,  0,  1,},
40
  {   1,  0,  1,  0,  1,  0,  1,  0,},
41
  {   0,  1,  0,  1,  0,  1,  0,  1,},
42
  {   1,  0,  1,  0,  1,  0,  1,  0,},
43
  {   0,  1,  0,  1,  0,  1,  0,  1,},
44
  {   1,  0,  1,  0,  1,  0,  1,  0,},
45
  {   0,  1,  0,  1,  0,  1,  0,  1,},
46
  {   1,  0,  1,  0,  1,  0,  1,  0,},
47
},{
48
  {   1,  2,  1,  2,  1,  2,  1,  2,},
49
  {   3,  0,  3,  0,  3,  0,  3,  0,},
50
  {   1,  2,  1,  2,  1,  2,  1,  2,},
51
  {   3,  0,  3,  0,  3,  0,  3,  0,},
52
  {   1,  2,  1,  2,  1,  2,  1,  2,},
53
  {   3,  0,  3,  0,  3,  0,  3,  0,},
54
  {   1,  2,  1,  2,  1,  2,  1,  2,},
55
  {   3,  0,  3,  0,  3,  0,  3,  0,},
56
},{
57
  {   2,  4,  3,  5,  2,  4,  3,  5,},
58
  {   6,  0,  7,  1,  6,  0,  7,  1,},
59
  {   3,  5,  2,  4,  3,  5,  2,  4,},
60
  {   7,  1,  6,  0,  7,  1,  6,  0,},
61
  {   2,  4,  3,  5,  2,  4,  3,  5,},
62
  {   6,  0,  7,  1,  6,  0,  7,  1,},
63
  {   3,  5,  2,  4,  3,  5,  2,  4,},
64
  {   7,  1,  6,  0,  7,  1,  6,  0,},
65
},{
66
  {   4,  8,  7, 11,  4,  8,  7, 11,},
67
  {  12,  0, 15,  3, 12,  0, 15,  3,},
68
  {   6, 10,  5,  9,  6, 10,  5,  9,},
69
  {  14,  2, 13,  1, 14,  2, 13,  1,},
70
  {   4,  8,  7, 11,  4,  8,  7, 11,},
71
  {  12,  0, 15,  3, 12,  0, 15,  3,},
72
  {   6, 10,  5,  9,  6, 10,  5,  9,},
73
  {  14,  2, 13,  1, 14,  2, 13,  1,},
74
},{
75
  {   9, 17, 15, 23,  8, 16, 14, 22,},
76
  {  25,  1, 31,  7, 24,  0, 30,  6,},
77
  {  13, 21, 11, 19, 12, 20, 10, 18,},
78
  {  29,  5, 27,  3, 28,  4, 26,  2,},
79
  {   8, 16, 14, 22,  9, 17, 15, 23,},
80
  {  24,  0, 30,  6, 25,  1, 31,  7,},
81
  {  12, 20, 10, 18, 13, 21, 11, 19,},
82
  {  28,  4, 26,  2, 29,  5, 27,  3,},
83
},{
84
  {  18, 34, 30, 46, 17, 33, 29, 45,},
85
  {  50,  2, 62, 14, 49,  1, 61, 13,},
86
  {  26, 42, 22, 38, 25, 41, 21, 37,},
87
  {  58, 10, 54,  6, 57,  9, 53,  5,},
88
  {  16, 32, 28, 44, 19, 35, 31, 47,},
89
  {  48,  0, 60, 12, 51,  3, 63, 15,},
90
  {  24, 40, 20, 36, 27, 43, 23, 39,},
91
  {  56,  8, 52,  4, 59, 11, 55,  7,},
92
},{
93
  {  18, 34, 30, 46, 17, 33, 29, 45,},
94
  {  50,  2, 62, 14, 49,  1, 61, 13,},
95
  {  26, 42, 22, 38, 25, 41, 21, 37,},
96
  {  58, 10, 54,  6, 57,  9, 53,  5,},
97
  {  16, 32, 28, 44, 19, 35, 31, 47,},
98
  {  48,  0, 60, 12, 51,  3, 63, 15,},
99
  {  24, 40, 20, 36, 27, 43, 23, 39,},
100
  {  56,  8, 52,  4, 59, 11, 55,  7,},
101
},{
102
  {  36, 68, 60, 92, 34, 66, 58, 90,},
103
  { 100,  4,124, 28, 98,  2,122, 26,},
104
  {  52, 84, 44, 76, 50, 82, 42, 74,},
105
  { 116, 20,108, 12,114, 18,106, 10,},
106
  {  32, 64, 56, 88, 38, 70, 62, 94,},
107
  {  96,  0,120, 24,102,  6,126, 30,},
108
  {  48, 80, 40, 72, 54, 86, 46, 78,},
109
  { 112, 16,104,  8,118, 22,110, 14,},
110
}};
111

112
static const uint16_t dither_scale[15][16]={
113
{    2,    3,    3,    5,    5,    5,    5,    5,    5,    5,    5,    5,    5,    5,    5,    5,},
114
{    2,    3,    7,    7,   13,   13,   25,   25,   25,   25,   25,   25,   25,   25,   25,   25,},
115
{    3,    3,    4,   15,   15,   29,   57,   57,   57,  113,  113,  113,  113,  113,  113,  113,},
116
{    3,    4,    4,    5,   31,   31,   61,  121,  241,  241,  241,  241,  481,  481,  481,  481,},
117
{    3,    4,    5,    5,    6,   63,   63,  125,  249,  497,  993,  993,  993,  993,  993, 1985,},
118
{    3,    5,    6,    6,    6,    7,  127,  127,  253,  505, 1009, 2017, 4033, 4033, 4033, 4033,},
119
{    3,    5,    6,    7,    7,    7,    8,  255,  255,  509, 1017, 2033, 4065, 8129,16257,16257,},
120
{    3,    5,    6,    8,    8,    8,    8,    9,  511,  511, 1021, 2041, 4081, 8161,16321,32641,},
121
{    3,    5,    7,    8,    9,    9,    9,    9,   10, 1023, 1023, 2045, 4089, 8177,16353,32705,},
122
{    3,    5,    7,    8,   10,   10,   10,   10,   10,   11, 2047, 2047, 4093, 8185,16369,32737,},
123
{    3,    5,    7,    8,   10,   11,   11,   11,   11,   11,   12, 4095, 4095, 8189,16377,32753,},
124
{    3,    5,    7,    9,   10,   12,   12,   12,   12,   12,   12,   13, 8191, 8191,16381,32761,},
125
{    3,    5,    7,    9,   10,   12,   13,   13,   13,   13,   13,   13,   14,16383,16383,32765,},
126
{    3,    5,    7,    9,   10,   12,   14,   14,   14,   14,   14,   14,   14,   15,32767,32767,},
127
{    3,    5,    7,    9,   11,   12,   14,   15,   15,   15,   15,   15,   15,   15,   16,65535,},
128
};
129

130

131
static void fillPlane(uint8_t *plane, int stride, int width, int height, int y,
132
                      uint8_t val)
133
{
134
    int i;
135
    uint8_t *ptr = plane + stride * y;
136
    for (i = 0; i < height; i++) {
137
        memset(ptr, val, width);
138
        ptr += stride;
139
    }
140
}
141

142
static void copyPlane(const uint8_t *src, int srcStride,
143
                      int srcSliceY, int srcSliceH, int width,
144
                      uint8_t *dst, int dstStride)
145
{
146
    dst += dstStride * srcSliceY;
147
    if (dstStride == srcStride && srcStride > 0) {
148
        memcpy(dst, src, srcSliceH * dstStride);
149
    } else {
150
        int i;
151
        for (i = 0; i < srcSliceH; i++) {
152
            memcpy(dst, src, width);
153
            src += srcStride;
154
            dst += dstStride;
155
        }
156
    }
157
}
158

159
static int planarToNv12Wrapper(SwsContext *c, const uint8_t *src[],
160
                               int srcStride[], int srcSliceY,
161
                               int srcSliceH, uint8_t *dstParam[],
162
                               int dstStride[])
163
{
164
    uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY / 2;
165

166
    copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
167
              dstParam[0], dstStride[0]);
168

169
    if (c->dstFormat == AV_PIX_FMT_NV12)
170
        interleaveBytes(src[1], src[2], dst, c->srcW / 2, srcSliceH / 2,
171
                        srcStride[1], srcStride[2], dstStride[1]);
172
    else
173
        interleaveBytes(src[2], src[1], dst, c->srcW / 2, srcSliceH / 2,
174
                        srcStride[2], srcStride[1], dstStride[1]);
175

176
    return srcSliceH;
177
}
178

179
static int nv12ToPlanarWrapper(SwsContext *c, const uint8_t *src[],
180
                               int srcStride[], int srcSliceY,
181
                               int srcSliceH, uint8_t *dstParam[],
182
                               int dstStride[])
183
{
184
    uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY / 2;
185
    uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY / 2;
186

187
    copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
188
              dstParam[0], dstStride[0]);
189

190
    if (c->srcFormat == AV_PIX_FMT_NV12)
191
        deinterleaveBytes(src[1], dst1, dst2,c->srcW / 2, srcSliceH / 2,
192
                          srcStride[1], dstStride[1], dstStride[2]);
193
    else
194
        deinterleaveBytes(src[1], dst2, dst1, c->srcW / 2, srcSliceH / 2,
195
                          srcStride[1], dstStride[2], dstStride[1]);
196

197
    return srcSliceH;
198
}
199

200
static int planarToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
201
                               int srcStride[], int srcSliceY, int srcSliceH,
202
                               uint8_t *dstParam[], int dstStride[])
203
{
204
    uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
205

206
    yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
207
               srcStride[1], dstStride[0]);
208

209
    return srcSliceH;
210
}
211

212
static int planarToUyvyWrapper(SwsContext *c, const uint8_t *src[],
213
                               int srcStride[], int srcSliceY, int srcSliceH,
214
                               uint8_t *dstParam[], int dstStride[])
215
{
216
    uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
217

218
    yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
219
               srcStride[1], dstStride[0]);
220

221
    return srcSliceH;
222
}
223

224
static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
225
                                int srcStride[], int srcSliceY, int srcSliceH,
226
                                uint8_t *dstParam[], int dstStride[])
227
{
228
    uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
229

230
    yuv422ptoyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
231
                  srcStride[1], dstStride[0]);
232

233
    return srcSliceH;
234
}
235

236
static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t *src[],
237
                                int srcStride[], int srcSliceY, int srcSliceH,
238
                                uint8_t *dstParam[], int dstStride[])
239
{
240
    uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
241

242
    yuv422ptouyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
243
                  srcStride[1], dstStride[0]);
244

245
    return srcSliceH;
246
}
247

248
static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
249
                               int srcStride[], int srcSliceY, int srcSliceH,
250
                               uint8_t *dstParam[], int dstStride[])
251
{
252
    uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
253
    uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
254
    uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
255

256
    yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
257
                 dstStride[1], srcStride[0]);
258

259
    if (dstParam[3])
260
        fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
261

262
    return srcSliceH;
263
}
264

265
static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
266
                               int srcStride[], int srcSliceY, int srcSliceH,
267
                               uint8_t *dstParam[], int dstStride[])
268
{
269
    uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
270
    uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
271
    uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
272

273
    yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
274
                 dstStride[1], srcStride[0]);
275

276
    return srcSliceH;
277
}
278

279
static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
280
                               int srcStride[], int srcSliceY, int srcSliceH,
281
                               uint8_t *dstParam[], int dstStride[])
282
{
283
    uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
284
    uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
285
    uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
286

287
    uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
288
                 dstStride[1], srcStride[0]);
289

290
    if (dstParam[3])
291
        fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
292

293
    return srcSliceH;
294
}
295

296
static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
297
                               int srcStride[], int srcSliceY, int srcSliceH,
298
                               uint8_t *dstParam[], int dstStride[])
299
{
300
    uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
301
    uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
302
    uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
303

304
    uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
305
                 dstStride[1], srcStride[0]);
306

307
    return srcSliceH;
308
}
309

310
static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels,
311
                             const uint8_t *palette)
312
{
313
    int i;
314
    for (i = 0; i < num_pixels; i++)
315
        ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | (src[(i << 1) + 1] << 24);
316
}
317

318
static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels,
319
                               const uint8_t *palette)
320
{
321
    int i;
322

323
    for (i = 0; i < num_pixels; i++)
324
        ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | src[(i << 1) + 1];
325
}
326

327
static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels,
328
                             const uint8_t *palette)
329
{
330
    int i;
331

332
    for (i = 0; i < num_pixels; i++) {
333
        //FIXME slow?
334
        dst[0] = palette[src[i << 1] * 4 + 0];
335
        dst[1] = palette[src[i << 1] * 4 + 1];
336
        dst[2] = palette[src[i << 1] * 4 + 2];
337
        dst += 3;
338
    }
339
}
340

341
static int packed_16bpc_bswap(SwsContext *c, const uint8_t *src[],
342
                              int srcStride[], int srcSliceY, int srcSliceH,
343
                              uint8_t *dst[], int dstStride[])
344
{
345
    int i, j, p;
346

347
    for (p = 0; p < 4; p++) {
348
        int srcstr = srcStride[p] / 2;
349
        int dststr = dstStride[p] / 2;
350
        uint16_t       *dstPtr =       (uint16_t *) dst[p];
351
        const uint16_t *srcPtr = (const uint16_t *) src[p];
352
        int min_stride         = FFMIN(FFABS(srcstr), FFABS(dststr));
353
        if(!dstPtr || !srcPtr)
354
            continue;
355
        for (i = 0; i < (srcSliceH >> c->chrDstVSubSample); i++) {
356
            for (j = 0; j < min_stride; j++) {
357
                dstPtr[j] = av_bswap16(srcPtr[j]);
358
            }
359
            srcPtr += srcstr;
360
            dstPtr += dststr;
361
        }
362
    }
363

364
    return srcSliceH;
365
}
366

367
static int palToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
368
                           int srcSliceY, int srcSliceH, uint8_t *dst[],
369
                           int dstStride[])
370
{
371
    const enum AVPixelFormat srcFormat = c->srcFormat;
372
    const enum AVPixelFormat dstFormat = c->dstFormat;
373
    void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels,
374
                 const uint8_t *palette) = NULL;
375
    int i;
376
    uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
377
    const uint8_t *srcPtr = src[0];
378

379
    if (srcFormat == AV_PIX_FMT_YA8) {
380
        switch (dstFormat) {
381
        case AV_PIX_FMT_RGB32  : conv = gray8aToPacked32; break;
382
        case AV_PIX_FMT_BGR32  : conv = gray8aToPacked32; break;
383
        case AV_PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;
384
        case AV_PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;
385
        case AV_PIX_FMT_RGB24  : conv = gray8aToPacked24; break;
386
        case AV_PIX_FMT_BGR24  : conv = gray8aToPacked24; break;
387
        }
388
    } else if (usePal(srcFormat)) {
389
        switch (dstFormat) {
390
        case AV_PIX_FMT_RGB32  : conv = sws_convertPalette8ToPacked32; break;
391
        case AV_PIX_FMT_BGR32  : conv = sws_convertPalette8ToPacked32; break;
392
        case AV_PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
393
        case AV_PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
394
        case AV_PIX_FMT_RGB24  : conv = sws_convertPalette8ToPacked24; break;
395
        case AV_PIX_FMT_BGR24  : conv = sws_convertPalette8ToPacked24; break;
396
        }
397
    }
398

399
    if (!conv)
400
        av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
401
               av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
402
    else {
403
        for (i = 0; i < srcSliceH; i++) {
404
            conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
405
            srcPtr += srcStride[0];
406
            dstPtr += dstStride[0];
407
        }
408
    }
409

410
    return srcSliceH;
411
}
412

413
static void packed16togbra16(const uint8_t *src, int srcStride,
414
                             uint16_t *dst[], int dstStride[], int srcSliceH,
415
                             int src_alpha, int swap, int shift, int width)
416
{
417
    int x, h, i;
418
    int dst_alpha = dst[3] != NULL;
419
    for (h = 0; h < srcSliceH; h++) {
420
        uint16_t *src_line = (uint16_t *)(src + srcStride * h);
421
        switch (swap) {
422
        case 3:
423
            if (src_alpha && dst_alpha) {
424
                for (x = 0; x < width; x++) {
425
                    dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
426
                    dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
427
                    dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
428
                    dst[3][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
429
                }
430
            } else if (dst_alpha) {
431
                for (x = 0; x < width; x++) {
432
                    dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
433
                    dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
434
                    dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
435
                    dst[3][x] = 0xFFFF;
436
                }
437
            } else if (src_alpha) {
438
                for (x = 0; x < width; x++) {
439
                    dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
440
                    dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
441
                    dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
442
                    src_line++;
443
                }
444
            } else {
445
                for (x = 0; x < width; x++) {
446
                    dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
447
                    dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
448
                    dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
449
                }
450
            }
451
            break;
452
        case 2:
453
            if (src_alpha && dst_alpha) {
454
                for (x = 0; x < width; x++) {
455
                    dst[0][x] = av_bswap16(*src_line++ >> shift);
456
                    dst[1][x] = av_bswap16(*src_line++ >> shift);
457
                    dst[2][x] = av_bswap16(*src_line++ >> shift);
458
                    dst[3][x] = av_bswap16(*src_line++ >> shift);
459
                }
460
            } else if (dst_alpha) {
461
                for (x = 0; x < width; x++) {
462
                    dst[0][x] = av_bswap16(*src_line++ >> shift);
463
                    dst[1][x] = av_bswap16(*src_line++ >> shift);
464
                    dst[2][x] = av_bswap16(*src_line++ >> shift);
465
                    dst[3][x] = 0xFFFF;
466
                }
467
            } else if (src_alpha) {
468
                for (x = 0; x < width; x++) {
469
                    dst[0][x] = av_bswap16(*src_line++ >> shift);
470
                    dst[1][x] = av_bswap16(*src_line++ >> shift);
471
                    dst[2][x] = av_bswap16(*src_line++ >> shift);
472
                    src_line++;
473
                }
474
            } else {
475
                for (x = 0; x < width; x++) {
476
                    dst[0][x] = av_bswap16(*src_line++ >> shift);
477
                    dst[1][x] = av_bswap16(*src_line++ >> shift);
478
                    dst[2][x] = av_bswap16(*src_line++ >> shift);
479
                }
480
            }
481
            break;
482
        case 1:
483
            if (src_alpha && dst_alpha) {
484
                for (x = 0; x < width; x++) {
485
                    dst[0][x] = av_bswap16(*src_line++) >> shift;
486
                    dst[1][x] = av_bswap16(*src_line++) >> shift;
487
                    dst[2][x] = av_bswap16(*src_line++) >> shift;
488
                    dst[3][x] = av_bswap16(*src_line++) >> shift;
489
                }
490
            } else if (dst_alpha) {
491
                for (x = 0; x < width; x++) {
492
                    dst[0][x] = av_bswap16(*src_line++) >> shift;
493
                    dst[1][x] = av_bswap16(*src_line++) >> shift;
494
                    dst[2][x] = av_bswap16(*src_line++) >> shift;
495
                    dst[3][x] = 0xFFFF;
496
                }
497
            } else if (src_alpha) {
498
                for (x = 0; x < width; x++) {
499
                    dst[0][x] = av_bswap16(*src_line++) >> shift;
500
                    dst[1][x] = av_bswap16(*src_line++) >> shift;
501
                    dst[2][x] = av_bswap16(*src_line++) >> shift;
502
                    src_line++;
503
                }
504
            } else {
505
                for (x = 0; x < width; x++) {
506
                    dst[0][x] = av_bswap16(*src_line++) >> shift;
507
                    dst[1][x] = av_bswap16(*src_line++) >> shift;
508
                    dst[2][x] = av_bswap16(*src_line++) >> shift;
509
                }
510
            }
511
            break;
512
        default:
513
            if (src_alpha && dst_alpha) {
514
                for (x = 0; x < width; x++) {
515
                    dst[0][x] = *src_line++ >> shift;
516
                    dst[1][x] = *src_line++ >> shift;
517
                    dst[2][x] = *src_line++ >> shift;
518
                    dst[3][x] = *src_line++ >> shift;
519
                }
520
            } else if (dst_alpha) {
521
                for (x = 0; x < width; x++) {
522
                    dst[0][x] = *src_line++ >> shift;
523
                    dst[1][x] = *src_line++ >> shift;
524
                    dst[2][x] = *src_line++ >> shift;
525
                    dst[3][x] = 0xFFFF;
526
                }
527
            } else if (src_alpha) {
528
                for (x = 0; x < width; x++) {
529
                    dst[0][x] = *src_line++ >> shift;
530
                    dst[1][x] = *src_line++ >> shift;
531
                    dst[2][x] = *src_line++ >> shift;
532
                    src_line++;
533
                }
534
            } else {
535
                for (x = 0; x < width; x++) {
536
                    dst[0][x] = *src_line++ >> shift;
537
                    dst[1][x] = *src_line++ >> shift;
538
                    dst[2][x] = *src_line++ >> shift;
539
                }
540
            }
541
        }
542
        for (i = 0; i < 4; i++)
543
            dst[i] += dstStride[i] >> 1;
544
    }
545
}
546

547
static int Rgb16ToPlanarRgb16Wrapper(SwsContext *c, const uint8_t *src[],
548
                                     int srcStride[], int srcSliceY, int srcSliceH,
549
                                     uint8_t *dst[], int dstStride[])
550
{
551
    uint16_t *dst2013[] = { (uint16_t *)dst[2], (uint16_t *)dst[0], (uint16_t *)dst[1], (uint16_t *)dst[3] };
552
    uint16_t *dst1023[] = { (uint16_t *)dst[1], (uint16_t *)dst[0], (uint16_t *)dst[2], (uint16_t *)dst[3] };
553
    int stride2013[] = { dstStride[2], dstStride[0], dstStride[1], dstStride[3] };
554
    int stride1023[] = { dstStride[1], dstStride[0], dstStride[2], dstStride[3] };
555
    const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
556
    const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
557
    int bpc = dst_format->comp[0].depth;
558
    int alpha = src_format->flags & AV_PIX_FMT_FLAG_ALPHA;
559
    int swap = 0;
560
    if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
561
        !HAVE_BIGENDIAN &&   src_format->flags & AV_PIX_FMT_FLAG_BE)
562
        swap++;
563
    if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
564
        !HAVE_BIGENDIAN &&   dst_format->flags & AV_PIX_FMT_FLAG_BE)
565
        swap += 2;
566

567
    if ((dst_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
568
        (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) || bpc < 9) {
569
        av_log(c, AV_LOG_ERROR, "unsupported conversion to planar RGB %s -> %s\n",
570
               src_format->name, dst_format->name);
571
        return srcSliceH;
572
    }
573
    switch (c->srcFormat) {
574
    case AV_PIX_FMT_RGB48LE:
575
    case AV_PIX_FMT_RGB48BE:
576
    case AV_PIX_FMT_RGBA64LE:
577
    case AV_PIX_FMT_RGBA64BE:
578
        packed16togbra16(src[0] + srcSliceY * srcStride[0], srcStride[0],
579
                         dst2013, stride2013, srcSliceH, alpha, swap,
580
                         16 - bpc, c->srcW);
581
        break;
582
    case AV_PIX_FMT_BGR48LE:
583
    case AV_PIX_FMT_BGR48BE:
584
    case AV_PIX_FMT_BGRA64LE:
585
    case AV_PIX_FMT_BGRA64BE:
586
        packed16togbra16(src[0] + srcSliceY * srcStride[0], srcStride[0],
587
                         dst1023, stride1023, srcSliceH, alpha, swap,
588
                         16 - bpc, c->srcW);
589
        break;
590
    default:
591
        av_log(c, AV_LOG_ERROR,
592
               "unsupported conversion to planar RGB %s -> %s\n",
593
               src_format->name, dst_format->name);
594
    }
595

596
    return srcSliceH;
597
}
598

599
static void gbr16ptopacked16(const uint16_t *src[], int srcStride[],
600
                             uint8_t *dst, int dstStride, int srcSliceH,
601
                             int alpha, int swap, int bpp, int width)
602
{
603
    int x, h, i;
604
    int src_alpha = src[3] != NULL;
605
    int scale_high = 16 - bpp, scale_low = (bpp - 8) * 2;
606
    for (h = 0; h < srcSliceH; h++) {
607
        uint16_t *dest = (uint16_t *)(dst + dstStride * h);
608
        uint16_t component;
609

610
        switch(swap) {
611
        case 3:
612
            if (alpha && !src_alpha) {
613
                for (x = 0; x < width; x++) {
614
                    component = av_bswap16(src[0][x]);
615
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
616
                    component = av_bswap16(src[1][x]);
617
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
618
                    component = av_bswap16(src[2][x]);
619
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
620
                    *dest++ = 0xffff;
621
                }
622
            } else if (alpha && src_alpha) {
623
                for (x = 0; x < width; x++) {
624
                    component = av_bswap16(src[0][x]);
625
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
626
                    component = av_bswap16(src[1][x]);
627
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
628
                    component = av_bswap16(src[2][x]);
629
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
630
                    component = av_bswap16(src[3][x]);
631
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
632
                }
633
            } else {
634
                for (x = 0; x < width; x++) {
635
                    component = av_bswap16(src[0][x]);
636
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
637
                    component = av_bswap16(src[1][x]);
638
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
639
                    component = av_bswap16(src[2][x]);
640
                    *dest++ = av_bswap16(component << scale_high | component >> scale_low);
641
                }
642
            }
643
            break;
644
        case 2:
645
            if (alpha && !src_alpha) {
646
                for (x = 0; x < width; x++) {
647
                    *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
648
                    *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
649
                    *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
650
                    *dest++ = 0xffff;
651
                }
652
            } else if (alpha && src_alpha) {
653
                for (x = 0; x < width; x++) {
654
                    *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
655
                    *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
656
                    *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
657
                    *dest++ = av_bswap16(src[3][x] << scale_high | src[3][x] >> scale_low);
658
                }
659
            } else {
660
                for (x = 0; x < width; x++) {
661
                    *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
662
                    *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
663
                    *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
664
                }
665
            }
666
            break;
667
        case 1:
668
            if (alpha && !src_alpha) {
669
                for (x = 0; x < width; x++) {
670
                    *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
671
                    *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
672
                    *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
673
                    *dest++ = 0xffff;
674
                }
675
            } else if (alpha && src_alpha) {
676
                for (x = 0; x < width; x++) {
677
                    *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
678
                    *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
679
                    *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
680
                    *dest++ = av_bswap16(src[3][x]) << scale_high | av_bswap16(src[3][x]) >> scale_low;
681
                }
682
            } else {
683
                for (x = 0; x < width; x++) {
684
                    *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
685
                    *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
686
                    *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
687
                }
688
            }
689
            break;
690
        default:
691
            if (alpha && !src_alpha) {
692
                for (x = 0; x < width; x++) {
693
                    *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
694
                    *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
695
                    *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
696
                    *dest++ = 0xffff;
697
                }
698
            } else if (alpha && src_alpha) {
699
                for (x = 0; x < width; x++) {
700
                    *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
701
                    *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
702
                    *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
703
                    *dest++ = src[3][x] << scale_high | src[3][x] >> scale_low;
704
                }
705
            } else {
706
                for (x = 0; x < width; x++) {
707
                    *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
708
                    *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
709
                    *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
710
                }
711
            }
712
        }
713
        for (i = 0; i < 3 + src_alpha; i++)
714
            src[i] += srcStride[i] >> 1;
715
    }
716
}
717

718
static int planarRgb16ToRgb16Wrapper(SwsContext *c, const uint8_t *src[],
719
                                     int srcStride[], int srcSliceY, int srcSliceH,
720
                                     uint8_t *dst[], int dstStride[])
721
{
722
    const uint16_t *src102[] = { (uint16_t *)src[1], (uint16_t *)src[0], (uint16_t *)src[2], (uint16_t *)src[3] };
723
    const uint16_t *src201[] = { (uint16_t *)src[2], (uint16_t *)src[0], (uint16_t *)src[1], (uint16_t *)src[3] };
724
    int stride102[] = { srcStride[1], srcStride[0], srcStride[2], srcStride[3] };
725
    int stride201[] = { srcStride[2], srcStride[0], srcStride[1], srcStride[3] };
726
    const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
727
    const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
728
    int bits_per_sample = src_format->comp[0].depth;
729
    int swap = 0;
730
    if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
731
        !HAVE_BIGENDIAN &&   src_format->flags & AV_PIX_FMT_FLAG_BE)
732
        swap++;
733
    if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
734
        !HAVE_BIGENDIAN &&   dst_format->flags & AV_PIX_FMT_FLAG_BE)
735
        swap += 2;
736

737
    if ((src_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
738
        (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) ||
739
        bits_per_sample <= 8) {
740
        av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
741
               src_format->name, dst_format->name);
742
        return srcSliceH;
743
    }
744
    switch (c->dstFormat) {
745
    case AV_PIX_FMT_BGR48LE:
746
    case AV_PIX_FMT_BGR48BE:
747
        gbr16ptopacked16(src102, stride102,
748
                         dst[0] + srcSliceY * dstStride[0], dstStride[0],
749
                         srcSliceH, 0, swap, bits_per_sample, c->srcW);
750
        break;
751
    case AV_PIX_FMT_RGB48LE:
752
    case AV_PIX_FMT_RGB48BE:
753
        gbr16ptopacked16(src201, stride201,
754
                         dst[0] + srcSliceY * dstStride[0], dstStride[0],
755
                         srcSliceH, 0, swap, bits_per_sample, c->srcW);
756
        break;
757
    case AV_PIX_FMT_RGBA64LE:
758
    case AV_PIX_FMT_RGBA64BE:
759
         gbr16ptopacked16(src201, stride201,
760
                          dst[0] + srcSliceY * dstStride[0], dstStride[0],
761
                          srcSliceH, 1, swap, bits_per_sample, c->srcW);
762
        break;
763
    case AV_PIX_FMT_BGRA64LE:
764
    case AV_PIX_FMT_BGRA64BE:
765
        gbr16ptopacked16(src102, stride102,
766
                         dst[0] + srcSliceY * dstStride[0], dstStride[0],
767
                         srcSliceH, 1, swap, bits_per_sample, c->srcW);
768
        break;
769
    default:
770
        av_log(c, AV_LOG_ERROR,
771
               "unsupported planar RGB conversion %s -> %s\n",
772
               src_format->name, dst_format->name);
773
    }
774

775
    return srcSliceH;
776
}
777

778
static void gbr24ptopacked24(const uint8_t *src[], int srcStride[],
779
                             uint8_t *dst, int dstStride, int srcSliceH,
780
                             int width)
781
{
782
    int x, h, i;
783
    for (h = 0; h < srcSliceH; h++) {
784
        uint8_t *dest = dst + dstStride * h;
785
        for (x = 0; x < width; x++) {
786
            *dest++ = src[0][x];
787
            *dest++ = src[1][x];
788
            *dest++ = src[2][x];
789
        }
790

791
        for (i = 0; i < 3; i++)
792
            src[i] += srcStride[i];
793
    }
794
}
795

796
static void gbr24ptopacked32(const uint8_t *src[], int srcStride[],
797
                             uint8_t *dst, int dstStride, int srcSliceH,
798
                             int alpha_first, int width)
799
{
800
    int x, h, i;
801
    for (h = 0; h < srcSliceH; h++) {
802
        uint8_t *dest = dst + dstStride * h;
803

804
        if (alpha_first) {
805
            for (x = 0; x < width; x++) {
806
                *dest++ = 0xff;
807
                *dest++ = src[0][x];
808
                *dest++ = src[1][x];
809
                *dest++ = src[2][x];
810
            }
811
        } else {
812
            for (x = 0; x < width; x++) {
813
                *dest++ = src[0][x];
814
                *dest++ = src[1][x];
815
                *dest++ = src[2][x];
816
                *dest++ = 0xff;
817
            }
818
        }
819

820
        for (i = 0; i < 3; i++)
821
            src[i] += srcStride[i];
822
    }
823
}
824

825
static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t *src[],
826
                                 int srcStride[], int srcSliceY, int srcSliceH,
827
                                 uint8_t *dst[], int dstStride[])
828
{
829
    int alpha_first = 0;
830
    const uint8_t *src102[] = { src[1], src[0], src[2] };
831
    const uint8_t *src201[] = { src[2], src[0], src[1] };
832
    int stride102[] = { srcStride[1], srcStride[0], srcStride[2] };
833
    int stride201[] = { srcStride[2], srcStride[0], srcStride[1] };
834

835
    if (c->srcFormat != AV_PIX_FMT_GBRP) {
836
        av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
837
               av_get_pix_fmt_name(c->srcFormat),
838
               av_get_pix_fmt_name(c->dstFormat));
839
        return srcSliceH;
840
    }
841

842
    switch (c->dstFormat) {
843
    case AV_PIX_FMT_BGR24:
844
        gbr24ptopacked24(src102, stride102,
845
                         dst[0] + srcSliceY * dstStride[0], dstStride[0],
846
                         srcSliceH, c->srcW);
847
        break;
848

849
    case AV_PIX_FMT_RGB24:
850
        gbr24ptopacked24(src201, stride201,
851
                         dst[0] + srcSliceY * dstStride[0], dstStride[0],
852
                         srcSliceH, c->srcW);
853
        break;
854

855
    case AV_PIX_FMT_ARGB:
856
        alpha_first = 1;
857
    case AV_PIX_FMT_RGBA:
858
        gbr24ptopacked32(src201, stride201,
859
                         dst[0] + srcSliceY * dstStride[0], dstStride[0],
860
                         srcSliceH, alpha_first, c->srcW);
861
        break;
862

863
    case AV_PIX_FMT_ABGR:
864
        alpha_first = 1;
865
    case AV_PIX_FMT_BGRA:
866
        gbr24ptopacked32(src102, stride102,
867
                         dst[0] + srcSliceY * dstStride[0], dstStride[0],
868
                         srcSliceH, alpha_first, c->srcW);
869
        break;
870

871
    default:
872
        av_log(c, AV_LOG_ERROR,
873
               "unsupported planar RGB conversion %s -> %s\n",
874
               av_get_pix_fmt_name(c->srcFormat),
875
               av_get_pix_fmt_name(c->dstFormat));
876
    }
877

878
    return srcSliceH;
879
}
880

881
static int planarRgbToplanarRgbWrapper(SwsContext *c,
882
                                       const uint8_t *src[], int srcStride[],
883
                                       int srcSliceY, int srcSliceH,
884
                                       uint8_t *dst[], int dstStride[])
885
{
886
    copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
887
              dst[0], dstStride[0]);
888
    copyPlane(src[1], srcStride[1], srcSliceY, srcSliceH, c->srcW,
889
              dst[1], dstStride[1]);
890
    copyPlane(src[2], srcStride[2], srcSliceY, srcSliceH, c->srcW,
891
              dst[2], dstStride[2]);
892
    if (dst[3])
893
        fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
894

895
    return srcSliceH;
896
}
897

898
static void packedtogbr24p(const uint8_t *src, int srcStride,
899
                           uint8_t *dst[], int dstStride[], int srcSliceH,
900
                           int alpha_first, int inc_size, int width)
901
{
902
    uint8_t *dest[3];
903
    int x, h;
904

905
    dest[0] = dst[0];
906
    dest[1] = dst[1];
907
    dest[2] = dst[2];
908

909
    if (alpha_first)
910
        src++;
911

912
    for (h = 0; h < srcSliceH; h++) {
913
        for (x = 0; x < width; x++) {
914
            dest[0][x] = src[0];
915
            dest[1][x] = src[1];
916
            dest[2][x] = src[2];
917

918
            src += inc_size;
919
        }
920
        src     += srcStride - width * inc_size;
921
        dest[0] += dstStride[0];
922
        dest[1] += dstStride[1];
923
        dest[2] += dstStride[2];
924
    }
925
}
926

927
static int rgbToPlanarRgbWrapper(SwsContext *c, const uint8_t *src[],
928
                                 int srcStride[], int srcSliceY, int srcSliceH,
929
                                 uint8_t *dst[], int dstStride[])
930
{
931
    int alpha_first = 0;
932
    int stride102[] = { dstStride[1], dstStride[0], dstStride[2] };
933
    int stride201[] = { dstStride[2], dstStride[0], dstStride[1] };
934
    uint8_t *dst102[] = { dst[1] + srcSliceY * dstStride[1],
935
                          dst[0] + srcSliceY * dstStride[0],
936
                          dst[2] + srcSliceY * dstStride[2] };
937
    uint8_t *dst201[] = { dst[2] + srcSliceY * dstStride[2],
938
                          dst[0] + srcSliceY * dstStride[0],
939
                          dst[1] + srcSliceY * dstStride[1] };
940

941
    switch (c->srcFormat) {
942
    case AV_PIX_FMT_RGB24:
943
        packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
944
                       stride201, srcSliceH, alpha_first, 3, c->srcW);
945
        break;
946
    case AV_PIX_FMT_BGR24:
947
        packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
948
                       stride102, srcSliceH, alpha_first, 3, c->srcW);
949
        break;
950
    case AV_PIX_FMT_ARGB:
951
        alpha_first = 1;
952
    case AV_PIX_FMT_RGBA:
953
        packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
954
                       stride201, srcSliceH, alpha_first, 4, c->srcW);
955
        break;
956
    case AV_PIX_FMT_ABGR:
957
        alpha_first = 1;
958
    case AV_PIX_FMT_BGRA:
959
        packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
960
                       stride102, srcSliceH, alpha_first, 4, c->srcW);
961
        break;
962
    default:
963
        av_log(c, AV_LOG_ERROR,
964
               "unsupported planar RGB conversion %s -> %s\n",
965
               av_get_pix_fmt_name(c->srcFormat),
966
               av_get_pix_fmt_name(c->dstFormat));
967
    }
968

969
    return srcSliceH;
970
}
971

972
#define BAYER_GBRG
973
#define BAYER_8
974
#define BAYER_RENAME(x) bayer_gbrg8_to_##x
975
#include "bayer_template.c"
976

977
#define BAYER_GBRG
978
#define BAYER_16LE
979
#define BAYER_RENAME(x) bayer_gbrg16le_to_##x
980
#include "bayer_template.c"
981

982
#define BAYER_GBRG
983
#define BAYER_16BE
984
#define BAYER_RENAME(x) bayer_gbrg16be_to_##x
985
#include "bayer_template.c"
986

987
#define BAYER_GRBG
988
#define BAYER_8
989
#define BAYER_RENAME(x) bayer_grbg8_to_##x
990
#include "bayer_template.c"
991

992
#define BAYER_GRBG
993
#define BAYER_16LE
994
#define BAYER_RENAME(x) bayer_grbg16le_to_##x
995
#include "bayer_template.c"
996

997
#define BAYER_GRBG
998
#define BAYER_16BE
999
#define BAYER_RENAME(x) bayer_grbg16be_to_##x
1000
#include "bayer_template.c"
1001

1002
#define BAYER_BGGR
1003
#define BAYER_8
1004
#define BAYER_RENAME(x) bayer_bggr8_to_##x
1005
#include "bayer_template.c"
1006

1007
#define BAYER_BGGR
1008
#define BAYER_16LE
1009
#define BAYER_RENAME(x) bayer_bggr16le_to_##x
1010
#include "bayer_template.c"
1011

1012
#define BAYER_BGGR
1013
#define BAYER_16BE
1014
#define BAYER_RENAME(x) bayer_bggr16be_to_##x
1015
#include "bayer_template.c"
1016

1017
#define BAYER_RGGB
1018
#define BAYER_8
1019
#define BAYER_RENAME(x) bayer_rggb8_to_##x
1020
#include "bayer_template.c"
1021

1022
#define BAYER_RGGB
1023
#define BAYER_16LE
1024
#define BAYER_RENAME(x) bayer_rggb16le_to_##x
1025
#include "bayer_template.c"
1026

1027
#define BAYER_RGGB
1028
#define BAYER_16BE
1029
#define BAYER_RENAME(x) bayer_rggb16be_to_##x
1030
#include "bayer_template.c"
1031

1032
static int bayer_to_rgb24_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1033
                                  int srcSliceH, uint8_t* dst[], int dstStride[])
1034
{
1035
    uint8_t *dstPtr= dst[0];
1036
    const uint8_t *srcPtr= src[0];
1037
    int i;
1038
    void (*copy)       (const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1039
    void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1040

1041
    switch(c->srcFormat) {
1042
#define CASE(pixfmt, prefix) \
1043
    case pixfmt: copy        = bayer_##prefix##_to_rgb24_copy; \
1044
                 interpolate = bayer_##prefix##_to_rgb24_interpolate; \
1045
                 break;
1046
    CASE(AV_PIX_FMT_BAYER_BGGR8,    bggr8)
1047
    CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
1048
    CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
1049
    CASE(AV_PIX_FMT_BAYER_RGGB8,    rggb8)
1050
    CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
1051
    CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
1052
    CASE(AV_PIX_FMT_BAYER_GBRG8,    gbrg8)
1053
    CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
1054
    CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
1055
    CASE(AV_PIX_FMT_BAYER_GRBG8,    grbg8)
1056
    CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
1057
    CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
1058
#undef CASE
1059
    default: return 0;
1060
    }
1061

1062
    av_assert0(srcSliceH > 1);
1063

1064
    copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1065
    srcPtr += 2 * srcStride[0];
1066
    dstPtr += 2 * dstStride[0];
1067

1068
    for (i = 2; i < srcSliceH - 2; i += 2) {
1069
        interpolate(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1070
        srcPtr += 2 * srcStride[0];
1071
        dstPtr += 2 * dstStride[0];
1072
    }
1073

1074
    if (i + 1 == srcSliceH) {
1075
        copy(srcPtr, -srcStride[0], dstPtr, -dstStride[0], c->srcW);
1076
    } else if (i < srcSliceH)
1077
        copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1078
    return srcSliceH;
1079
}
1080

1081
static int bayer_to_yv12_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1082
                                 int srcSliceH, uint8_t* dst[], int dstStride[])
1083
{
1084
    const uint8_t *srcPtr= src[0];
1085
    uint8_t *dstY= dst[0];
1086
    uint8_t *dstU= dst[1];
1087
    uint8_t *dstV= dst[2];
1088
    int i;
1089
    void (*copy)       (const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, int32_t *rgb2yuv);
1090
    void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, int32_t *rgb2yuv);
1091

1092
    switch(c->srcFormat) {
1093
#define CASE(pixfmt, prefix) \
1094
    case pixfmt: copy        = bayer_##prefix##_to_yv12_copy; \
1095
                 interpolate = bayer_##prefix##_to_yv12_interpolate; \
1096
                 break;
1097
    CASE(AV_PIX_FMT_BAYER_BGGR8,    bggr8)
1098
    CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
1099
    CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
1100
    CASE(AV_PIX_FMT_BAYER_RGGB8,    rggb8)
1101
    CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
1102
    CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
1103
    CASE(AV_PIX_FMT_BAYER_GBRG8,    gbrg8)
1104
    CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
1105
    CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
1106
    CASE(AV_PIX_FMT_BAYER_GRBG8,    grbg8)
1107
    CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
1108
    CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
1109
#undef CASE
1110
    default: return 0;
1111
    }
1112

1113
    av_assert0(srcSliceH > 1);
1114

1115
    copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1116
    srcPtr += 2 * srcStride[0];
1117
    dstY   += 2 * dstStride[0];
1118
    dstU   +=     dstStride[1];
1119
    dstV   +=     dstStride[1];
1120

1121
    for (i = 2; i < srcSliceH - 2; i += 2) {
1122
        interpolate(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1123
        srcPtr += 2 * srcStride[0];
1124
        dstY   += 2 * dstStride[0];
1125
        dstU   +=     dstStride[1];
1126
        dstV   +=     dstStride[1];
1127
    }
1128

1129
    if (i + 1 == srcSliceH) {
1130
        copy(srcPtr, -srcStride[0], dstY, dstU, dstV, -dstStride[0], c->srcW, c->input_rgb2yuv_table);
1131
    } else if (i < srcSliceH)
1132
        copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1133
    return srcSliceH;
1134
}
1135

1136
#define isRGBA32(x) (            \
1137
           (x) == AV_PIX_FMT_ARGB   \
1138
        || (x) == AV_PIX_FMT_RGBA   \
1139
        || (x) == AV_PIX_FMT_BGRA   \
1140
        || (x) == AV_PIX_FMT_ABGR   \
1141
        )
1142

1143
#define isRGBA64(x) (                \
1144
           (x) == AV_PIX_FMT_RGBA64LE   \
1145
        || (x) == AV_PIX_FMT_RGBA64BE   \
1146
        || (x) == AV_PIX_FMT_BGRA64LE   \
1147
        || (x) == AV_PIX_FMT_BGRA64BE   \
1148
        )
1149

1150
#define isRGB48(x) (                \
1151
           (x) == AV_PIX_FMT_RGB48LE   \
1152
        || (x) == AV_PIX_FMT_RGB48BE   \
1153
        || (x) == AV_PIX_FMT_BGR48LE   \
1154
        || (x) == AV_PIX_FMT_BGR48BE   \
1155
        )
1156

1157
/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1158
typedef void (* rgbConvFn) (const uint8_t *, uint8_t *, int);
1159
static rgbConvFn findRgbConvFn(SwsContext *c)
1160
{
1161
    const enum AVPixelFormat srcFormat = c->srcFormat;
1162
    const enum AVPixelFormat dstFormat = c->dstFormat;
1163
    const int srcId = c->srcFormatBpp;
1164
    const int dstId = c->dstFormatBpp;
1165
    rgbConvFn conv = NULL;
1166

1167
#define IS_NOT_NE(bpp, desc) \
1168
    (((bpp + 7) >> 3) == 2 && \
1169
     (!(desc->flags & AV_PIX_FMT_FLAG_BE) != !HAVE_BIGENDIAN))
1170

1171
#define CONV_IS(src, dst) (srcFormat == AV_PIX_FMT_##src && dstFormat == AV_PIX_FMT_##dst)
1172

1173
    if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {
1174
        if (     CONV_IS(ABGR, RGBA)
1175
              || CONV_IS(ARGB, BGRA)
1176
              || CONV_IS(BGRA, ARGB)
1177
              || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;
1178
        else if (CONV_IS(ABGR, ARGB)
1179
              || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;
1180
        else if (CONV_IS(ABGR, BGRA)
1181
              || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;
1182
        else if (CONV_IS(BGRA, RGBA)
1183
              || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;
1184
        else if (CONV_IS(BGRA, ABGR)
1185
              || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;
1186
    } else if (isRGB48(srcFormat) && isRGB48(dstFormat)) {
1187
        if      (CONV_IS(RGB48LE, BGR48LE)
1188
              || CONV_IS(BGR48LE, RGB48LE)
1189
              || CONV_IS(RGB48BE, BGR48BE)
1190
              || CONV_IS(BGR48BE, RGB48BE)) conv = rgb48tobgr48_nobswap;
1191
        else if (CONV_IS(RGB48LE, BGR48BE)
1192
              || CONV_IS(BGR48LE, RGB48BE)
1193
              || CONV_IS(RGB48BE, BGR48LE)
1194
              || CONV_IS(BGR48BE, RGB48LE)) conv = rgb48tobgr48_bswap;
1195
    } else if (isRGBA64(srcFormat) && isRGB48(dstFormat)) {
1196
        if      (CONV_IS(RGBA64LE, BGR48LE)
1197
              || CONV_IS(BGRA64LE, RGB48LE)
1198
              || CONV_IS(RGBA64BE, BGR48BE)
1199
              || CONV_IS(BGRA64BE, RGB48BE)) conv = rgb64tobgr48_nobswap;
1200
        else if (CONV_IS(RGBA64LE, BGR48BE)
1201
              || CONV_IS(BGRA64LE, RGB48BE)
1202
              || CONV_IS(RGBA64BE, BGR48LE)
1203
              || CONV_IS(BGRA64BE, RGB48LE)) conv = rgb64tobgr48_bswap;
1204
        else if (CONV_IS(RGBA64LE, RGB48LE)
1205
              || CONV_IS(BGRA64LE, BGR48LE)
1206
              || CONV_IS(RGBA64BE, RGB48BE)
1207
              || CONV_IS(BGRA64BE, BGR48BE)) conv = rgb64to48_nobswap;
1208
        else if (CONV_IS(RGBA64LE, RGB48BE)
1209
              || CONV_IS(BGRA64LE, BGR48BE)
1210
              || CONV_IS(RGBA64BE, RGB48LE)
1211
              || CONV_IS(BGRA64BE, BGR48LE)) conv = rgb64to48_bswap;
1212
    } else
1213
    /* BGR -> BGR */
1214
    if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) ||
1215
        (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
1216
        switch (srcId | (dstId << 16)) {
1217
        case 0x000F000C: conv = rgb12to15; break;
1218
        case 0x000F0010: conv = rgb16to15; break;
1219
        case 0x000F0018: conv = rgb24to15; break;
1220
        case 0x000F0020: conv = rgb32to15; break;
1221
        case 0x0010000F: conv = rgb15to16; break;
1222
        case 0x00100018: conv = rgb24to16; break;
1223
        case 0x00100020: conv = rgb32to16; break;
1224
        case 0x0018000F: conv = rgb15to24; break;
1225
        case 0x00180010: conv = rgb16to24; break;
1226
        case 0x00180020: conv = rgb32to24; break;
1227
        case 0x0020000F: conv = rgb15to32; break;
1228
        case 0x00200010: conv = rgb16to32; break;
1229
        case 0x00200018: conv = rgb24to32; break;
1230
        }
1231
    } else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) ||
1232
               (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {
1233
        switch (srcId | (dstId << 16)) {
1234
        case 0x000C000C: conv = rgb12tobgr12; break;
1235
        case 0x000F000F: conv = rgb15tobgr15; break;
1236
        case 0x000F0010: conv = rgb16tobgr15; break;
1237
        case 0x000F0018: conv = rgb24tobgr15; break;
1238
        case 0x000F0020: conv = rgb32tobgr15; break;
1239
        case 0x0010000F: conv = rgb15tobgr16; break;
1240
        case 0x00100010: conv = rgb16tobgr16; break;
1241
        case 0x00100018: conv = rgb24tobgr16; break;
1242
        case 0x00100020: conv = rgb32tobgr16; break;
1243
        case 0x0018000F: conv = rgb15tobgr24; break;
1244
        case 0x00180010: conv = rgb16tobgr24; break;
1245
        case 0x00180018: conv = rgb24tobgr24; break;
1246
        case 0x00180020: conv = rgb32tobgr24; break;
1247
        case 0x0020000F: conv = rgb15tobgr32; break;
1248
        case 0x00200010: conv = rgb16tobgr32; break;
1249
        case 0x00200018: conv = rgb24tobgr32; break;
1250
        }
1251
    }
1252

1253
    if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) && !isRGBA32(srcFormat) && ALT32_CORR<0)
1254
        return NULL;
1255

1256
    // Maintain symmetry between endianness
1257
    if (c->flags & SWS_BITEXACT)
1258
        if ((dstFormat == AV_PIX_FMT_RGB32   || dstFormat == AV_PIX_FMT_BGR32  ) && !isRGBA32(srcFormat) && ALT32_CORR>0)
1259
            return NULL;
1260

1261
    return conv;
1262
}
1263

1264
/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1265
static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
1266
                           int srcSliceY, int srcSliceH, uint8_t *dst[],
1267
                           int dstStride[])
1268

1269
{
1270
    const enum AVPixelFormat srcFormat = c->srcFormat;
1271
    const enum AVPixelFormat dstFormat = c->dstFormat;
1272
    const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
1273
    const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1274
    const int srcBpp = (c->srcFormatBpp + 7) >> 3;
1275
    const int dstBpp = (c->dstFormatBpp + 7) >> 3;
1276
    rgbConvFn conv = findRgbConvFn(c);
1277

1278
    if (!conv) {
1279
        av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1280
               av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1281
    } else {
1282
        const uint8_t *srcPtr = src[0];
1283
              uint8_t *dstPtr = dst[0];
1284
        int src_bswap = IS_NOT_NE(c->srcFormatBpp, desc_src);
1285
        int dst_bswap = IS_NOT_NE(c->dstFormatBpp, desc_dst);
1286

1287
        if ((srcFormat == AV_PIX_FMT_RGB32_1 || srcFormat == AV_PIX_FMT_BGR32_1) &&
1288
            !isRGBA32(dstFormat))
1289
            srcPtr += ALT32_CORR;
1290

1291
        if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) &&
1292
            !isRGBA32(srcFormat)) {
1293
            int i;
1294
            av_assert0(ALT32_CORR == 1);
1295
            for (i = 0; i < srcSliceH; i++)
1296
                dstPtr[dstStride[0] * (srcSliceY + i)] = 255;
1297
            dstPtr += ALT32_CORR;
1298
        }
1299

1300
        if (dstStride[0] * srcBpp == srcStride[0] * dstBpp && srcStride[0] > 0 &&
1301
            !(srcStride[0] % srcBpp) && !dst_bswap && !src_bswap)
1302
            conv(srcPtr, dstPtr + dstStride[0] * srcSliceY,
1303
                 (srcSliceH - 1) * srcStride[0] + c->srcW * srcBpp);
1304
        else {
1305
            int i, j;
1306
            dstPtr += dstStride[0] * srcSliceY;
1307

1308
            for (i = 0; i < srcSliceH; i++) {
1309
                if(src_bswap) {
1310
                    for(j=0; j<c->srcW; j++)
1311
                        ((uint16_t*)c->formatConvBuffer)[j] = av_bswap16(((uint16_t*)srcPtr)[j]);
1312
                    conv(c->formatConvBuffer, dstPtr, c->srcW * srcBpp);
1313
                }else
1314
                    conv(srcPtr, dstPtr, c->srcW * srcBpp);
1315
                if(dst_bswap)
1316
                    for(j=0; j<c->srcW; j++)
1317
                        ((uint16_t*)dstPtr)[j] = av_bswap16(((uint16_t*)dstPtr)[j]);
1318
                srcPtr += srcStride[0];
1319
                dstPtr += dstStride[0];
1320
            }
1321
        }
1322
    }
1323
    return srcSliceH;
1324
}
1325

1326
static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
1327
                              int srcStride[], int srcSliceY, int srcSliceH,
1328
                              uint8_t *dst[], int dstStride[])
1329
{
1330
    ff_rgb24toyv12(
1331
        src[0],
1332
        dst[0] +  srcSliceY       * dstStride[0],
1333
        dst[1] + (srcSliceY >> 1) * dstStride[1],
1334
        dst[2] + (srcSliceY >> 1) * dstStride[2],
1335
        c->srcW, srcSliceH,
1336
        dstStride[0], dstStride[1], srcStride[0],
1337
        c->input_rgb2yuv_table);
1338
    if (dst[3])
1339
        fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1340
    return srcSliceH;
1341
}
1342

1343
static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
1344
                             int srcStride[], int srcSliceY, int srcSliceH,
1345
                             uint8_t *dst[], int dstStride[])
1346
{
1347
    copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
1348
              dst[0], dstStride[0]);
1349

1350
    planar2x(src[1], dst[1] + dstStride[1] * (srcSliceY >> 1), c->chrSrcW,
1351
             srcSliceH >> 2, srcStride[1], dstStride[1]);
1352
    planar2x(src[2], dst[2] + dstStride[2] * (srcSliceY >> 1), c->chrSrcW,
1353
             srcSliceH >> 2, srcStride[2], dstStride[2]);
1354
    if (dst[3])
1355
        fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1356
    return srcSliceH;
1357
}
1358

1359
/* unscaled copy like stuff (assumes nearly identical formats) */
1360
static int packedCopyWrapper(SwsContext *c, const uint8_t *src[],
1361
                             int srcStride[], int srcSliceY, int srcSliceH,
1362
                             uint8_t *dst[], int dstStride[])
1363
{
1364
    if (dstStride[0] == srcStride[0] && srcStride[0] > 0)
1365
        memcpy(dst[0] + dstStride[0] * srcSliceY, src[0], srcSliceH * dstStride[0]);
1366
    else {
1367
        int i;
1368
        const uint8_t *srcPtr = src[0];
1369
        uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
1370
        int length = 0;
1371

1372
        /* universal length finder */
1373
        while (length + c->srcW <= FFABS(dstStride[0]) &&
1374
               length + c->srcW <= FFABS(srcStride[0]))
1375
            length += c->srcW;
1376
        av_assert1(length != 0);
1377

1378
        for (i = 0; i < srcSliceH; i++) {
1379
            memcpy(dstPtr, srcPtr, length);
1380
            srcPtr += srcStride[0];
1381
            dstPtr += dstStride[0];
1382
        }
1383
    }
1384
    return srcSliceH;
1385
}
1386

1387
#define DITHER_COPY(dst, dstStride, src, srcStride, bswap, dbswap)\
1388
    uint16_t scale= dither_scale[dst_depth-1][src_depth-1];\
1389
    int shift= src_depth-dst_depth + dither_scale[src_depth-2][dst_depth-1];\
1390
    for (i = 0; i < height; i++) {\
1391
        const uint8_t *dither= dithers[src_depth-9][i&7];\
1392
        for (j = 0; j < length-7; j+=8){\
1393
            dst[j+0] = dbswap((bswap(src[j+0]) + dither[0])*scale>>shift);\
1394
            dst[j+1] = dbswap((bswap(src[j+1]) + dither[1])*scale>>shift);\
1395
            dst[j+2] = dbswap((bswap(src[j+2]) + dither[2])*scale>>shift);\
1396
            dst[j+3] = dbswap((bswap(src[j+3]) + dither[3])*scale>>shift);\
1397
            dst[j+4] = dbswap((bswap(src[j+4]) + dither[4])*scale>>shift);\
1398
            dst[j+5] = dbswap((bswap(src[j+5]) + dither[5])*scale>>shift);\
1399
            dst[j+6] = dbswap((bswap(src[j+6]) + dither[6])*scale>>shift);\
1400
            dst[j+7] = dbswap((bswap(src[j+7]) + dither[7])*scale>>shift);\
1401
        }\
1402
        for (; j < length; j++)\
1403
            dst[j] = dbswap((bswap(src[j]) + dither[j&7])*scale>>shift);\
1404
        dst += dstStride;\
1405
        src += srcStride;\
1406
    }
1407

1408
static int planarCopyWrapper(SwsContext *c, const uint8_t *src[],
1409
                             int srcStride[], int srcSliceY, int srcSliceH,
1410
                             uint8_t *dst[], int dstStride[])
1411
{
1412
    const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
1413
    const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1414
    int plane, i, j;
1415
    for (plane = 0; plane < 4; plane++) {
1416
        int length = (plane == 0 || plane == 3) ? c->srcW  : AV_CEIL_RSHIFT(c->srcW,   c->chrDstHSubSample);
1417
        int y =      (plane == 0 || plane == 3) ? srcSliceY: AV_CEIL_RSHIFT(srcSliceY, c->chrDstVSubSample);
1418
        int height = (plane == 0 || plane == 3) ? srcSliceH: AV_CEIL_RSHIFT(srcSliceH, c->chrDstVSubSample);
1419
        const uint8_t *srcPtr = src[plane];
1420
        uint8_t *dstPtr = dst[plane] + dstStride[plane] * y;
1421
        int shiftonly = plane == 1 || plane == 2 || (!c->srcRange && plane == 0);
1422

1423
        if (!dst[plane])
1424
            continue;
1425
        // ignore palette for GRAY8
1426
        if (plane == 1 && !dst[2]) continue;
1427
        if (!src[plane] || (plane == 1 && !src[2])) {
1428
            if (is16BPS(c->dstFormat) || isNBPS(c->dstFormat)) {
1429
                fillPlane16(dst[plane], dstStride[plane], length, height, y,
1430
                        plane == 3, desc_dst->comp[plane].depth,
1431
                        isBE(c->dstFormat));
1432
            } else {
1433
                fillPlane(dst[plane], dstStride[plane], length, height, y,
1434
                        (plane == 3) ? 255 : 128);
1435
            }
1436
        } else {
1437
            if(isNBPS(c->srcFormat) || isNBPS(c->dstFormat)
1438
               || (is16BPS(c->srcFormat) != is16BPS(c->dstFormat))
1439
            ) {
1440
                const int src_depth = desc_src->comp[plane].depth;
1441
                const int dst_depth = desc_dst->comp[plane].depth;
1442
                const uint16_t *srcPtr2 = (const uint16_t *) srcPtr;
1443
                uint16_t *dstPtr2 = (uint16_t*)dstPtr;
1444

1445
                if (dst_depth == 8) {
1446
                    if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1447
                        DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, , )
1448
                    } else {
1449
                        DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, av_bswap16, )
1450
                    }
1451
                } else if (src_depth == 8) {
1452
                    for (i = 0; i < height; i++) {
1453
                        #define COPY816(w)\
1454
                        if (shiftonly) {\
1455
                            for (j = 0; j < length; j++)\
1456
                                w(&dstPtr2[j], srcPtr[j]<<(dst_depth-8));\
1457
                        } else {\
1458
                            for (j = 0; j < length; j++)\
1459
                                w(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) |\
1460
                                               (srcPtr[j]>>(2*8-dst_depth)));\
1461
                        }
1462
                        if(isBE(c->dstFormat)){
1463
                            COPY816(AV_WB16)
1464
                        } else {
1465
                            COPY816(AV_WL16)
1466
                        }
1467
                        dstPtr2 += dstStride[plane]/2;
1468
                        srcPtr  += srcStride[plane];
1469
                    }
1470
                } else if (src_depth <= dst_depth) {
1471
                    for (i = 0; i < height; i++) {
1472
                        j = 0;
1473
                        if(isBE(c->srcFormat) == HAVE_BIGENDIAN &&
1474
                           isBE(c->dstFormat) == HAVE_BIGENDIAN &&
1475
                           shiftonly) {
1476
                             unsigned shift = dst_depth - src_depth;
1477
#if HAVE_FAST_64BIT
1478
#define FAST_COPY_UP(shift) \
1479
    for (; j < length - 3; j += 4) { \
1480
        uint64_t v = AV_RN64A(srcPtr2 + j); \
1481
        AV_WN64A(dstPtr2 + j, v << shift); \
1482
    }
1483
#else
1484
#define FAST_COPY_UP(shift) \
1485
    for (; j < length - 1; j += 2) { \
1486
        uint32_t v = AV_RN32A(srcPtr2 + j); \
1487
        AV_WN32A(dstPtr2 + j, v << shift); \
1488
    }
1489
#endif
1490
                             switch (shift)
1491
                             {
1492
                             case 6: FAST_COPY_UP(6); break;
1493
                             case 7: FAST_COPY_UP(7); break;
1494
                             }
1495
                        }
1496
#define COPY_UP(r,w) \
1497
    if(shiftonly){\
1498
        for (; j < length; j++){ \
1499
            unsigned int v= r(&srcPtr2[j]);\
1500
            w(&dstPtr2[j], v<<(dst_depth-src_depth));\
1501
        }\
1502
    }else{\
1503
        for (; j < length; j++){ \
1504
            unsigned int v= r(&srcPtr2[j]);\
1505
            w(&dstPtr2[j], (v<<(dst_depth-src_depth)) | \
1506
                        (v>>(2*src_depth-dst_depth)));\
1507
        }\
1508
    }
1509
                        if(isBE(c->srcFormat)){
1510
                            if(isBE(c->dstFormat)){
1511
                                COPY_UP(AV_RB16, AV_WB16)
1512
                            } else {
1513
                                COPY_UP(AV_RB16, AV_WL16)
1514
                            }
1515
                        } else {
1516
                            if(isBE(c->dstFormat)){
1517
                                COPY_UP(AV_RL16, AV_WB16)
1518
                            } else {
1519
                                COPY_UP(AV_RL16, AV_WL16)
1520
                            }
1521
                        }
1522
                        dstPtr2 += dstStride[plane]/2;
1523
                        srcPtr2 += srcStride[plane]/2;
1524
                    }
1525
                } else {
1526
                    if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1527
                        if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1528
                            DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , )
1529
                        } else {
1530
                            DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , av_bswap16)
1531
                        }
1532
                    }else{
1533
                        if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1534
                            DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, )
1535
                        } else {
1536
                            DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, av_bswap16)
1537
                        }
1538
                    }
1539
                }
1540
            } else if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat) &&
1541
                      isBE(c->srcFormat) != isBE(c->dstFormat)) {
1542

1543
                for (i = 0; i < height; i++) {
1544
                    for (j = 0; j < length; j++)
1545
                        ((uint16_t *) dstPtr)[j] = av_bswap16(((const uint16_t *) srcPtr)[j]);
1546
                    srcPtr += srcStride[plane];
1547
                    dstPtr += dstStride[plane];
1548
                }
1549
            } else if (dstStride[plane] == srcStride[plane] &&
1550
                       srcStride[plane] > 0 && srcStride[plane] == length) {
1551
                memcpy(dst[plane] + dstStride[plane] * y, src[plane],
1552
                       height * dstStride[plane]);
1553
            } else {
1554
                if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
1555
                    length *= 2;
1556
                else if (desc_src->comp[0].depth == 1)
1557
                    length >>= 3; // monowhite/black
1558
                for (i = 0; i < height; i++) {
1559
                    memcpy(dstPtr, srcPtr, length);
1560
                    srcPtr += srcStride[plane];
1561
                    dstPtr += dstStride[plane];
1562
                }
1563
            }
1564
        }
1565
    }
1566
    return srcSliceH;
1567
}
1568

1569

1570
#define IS_DIFFERENT_ENDIANESS(src_fmt, dst_fmt, pix_fmt)          \
1571
    ((src_fmt == pix_fmt ## BE && dst_fmt == pix_fmt ## LE) ||     \
1572
     (src_fmt == pix_fmt ## LE && dst_fmt == pix_fmt ## BE))
1573

1574

1575
void ff_get_unscaled_swscale(SwsContext *c)
1576
{
1577
    const enum AVPixelFormat srcFormat = c->srcFormat;
1578
    const enum AVPixelFormat dstFormat = c->dstFormat;
1579
    const int flags = c->flags;
1580
    const int dstH = c->dstH;
1581
    int needsDither;
1582

1583
    needsDither = isAnyRGB(dstFormat) &&
1584
            c->dstFormatBpp < 24 &&
1585
           (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
1586

1587
    /* yv12_to_nv12 */
1588
    if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) &&
1589
        (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)) {
1590
        c->swscale = planarToNv12Wrapper;
1591
    }
1592
    /* nv12_to_yv12 */
1593
    if (dstFormat == AV_PIX_FMT_YUV420P &&
1594
        (srcFormat == AV_PIX_FMT_NV12 || srcFormat == AV_PIX_FMT_NV21)) {
1595
        c->swscale = nv12ToPlanarWrapper;
1596
    }
1597
    /* yuv2bgr */
1598
    if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUV422P ||
1599
         srcFormat == AV_PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) &&
1600
        !(flags & SWS_ACCURATE_RND) && (c->dither == SWS_DITHER_BAYER || c->dither == SWS_DITHER_AUTO) && !(dstH & 1)) {
1601
        c->swscale = ff_yuv2rgb_get_func_ptr(c);
1602
    }
1603

1604
    if (srcFormat == AV_PIX_FMT_YUV410P && !(dstH & 3) &&
1605
        (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
1606
        !(flags & SWS_BITEXACT)) {
1607
        c->swscale = yvu9ToYv12Wrapper;
1608
    }
1609

1610
    /* bgr24toYV12 */
1611
    if (srcFormat == AV_PIX_FMT_BGR24 &&
1612
        (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
1613
        !(flags & SWS_ACCURATE_RND))
1614
        c->swscale = bgr24ToYv12Wrapper;
1615

1616
    /* RGB/BGR -> RGB/BGR (no dither needed forms) */
1617
    if (isAnyRGB(srcFormat) && isAnyRGB(dstFormat) && findRgbConvFn(c)
1618
        && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
1619
        c->swscale = rgbToRgbWrapper;
1620

1621
    /* RGB to planar RGB */
1622
    if ((srcFormat == AV_PIX_FMT_GBRP && dstFormat == AV_PIX_FMT_GBRAP) ||
1623
        (srcFormat == AV_PIX_FMT_GBRAP && dstFormat == AV_PIX_FMT_GBRP))
1624
        c->swscale = planarRgbToplanarRgbWrapper;
1625

1626
#define isByteRGB(f) (             \
1627
        f == AV_PIX_FMT_RGB32   || \
1628
        f == AV_PIX_FMT_RGB32_1 || \
1629
        f == AV_PIX_FMT_RGB24   || \
1630
        f == AV_PIX_FMT_BGR32   || \
1631
        f == AV_PIX_FMT_BGR32_1 || \
1632
        f == AV_PIX_FMT_BGR24)
1633

1634
    if (srcFormat == AV_PIX_FMT_GBRP && isPlanar(srcFormat) && isByteRGB(dstFormat))
1635
        c->swscale = planarRgbToRgbWrapper;
1636

1637
    if ((srcFormat == AV_PIX_FMT_RGB48LE  || srcFormat == AV_PIX_FMT_RGB48BE  ||
1638
         srcFormat == AV_PIX_FMT_BGR48LE  || srcFormat == AV_PIX_FMT_BGR48BE  ||
1639
         srcFormat == AV_PIX_FMT_RGBA64LE || srcFormat == AV_PIX_FMT_RGBA64BE ||
1640
         srcFormat == AV_PIX_FMT_BGRA64LE || srcFormat == AV_PIX_FMT_BGRA64BE) &&
1641
        (dstFormat == AV_PIX_FMT_GBRP9LE  || dstFormat == AV_PIX_FMT_GBRP9BE  ||
1642
         dstFormat == AV_PIX_FMT_GBRP10LE || dstFormat == AV_PIX_FMT_GBRP10BE ||
1643
         dstFormat == AV_PIX_FMT_GBRP12LE || dstFormat == AV_PIX_FMT_GBRP12BE ||
1644
         dstFormat == AV_PIX_FMT_GBRP14LE || dstFormat == AV_PIX_FMT_GBRP14BE ||
1645
         dstFormat == AV_PIX_FMT_GBRP16LE || dstFormat == AV_PIX_FMT_GBRP16BE ||
1646
         dstFormat == AV_PIX_FMT_GBRAP16LE || dstFormat == AV_PIX_FMT_GBRAP16BE ))
1647
        c->swscale = Rgb16ToPlanarRgb16Wrapper;
1648

1649
    if ((srcFormat == AV_PIX_FMT_GBRP9LE  || srcFormat == AV_PIX_FMT_GBRP9BE  ||
1650
         srcFormat == AV_PIX_FMT_GBRP16LE || srcFormat == AV_PIX_FMT_GBRP16BE ||
1651
         srcFormat == AV_PIX_FMT_GBRP10LE || srcFormat == AV_PIX_FMT_GBRP10BE ||
1652
         srcFormat == AV_PIX_FMT_GBRP12LE || srcFormat == AV_PIX_FMT_GBRP12BE ||
1653
         srcFormat == AV_PIX_FMT_GBRP14LE || srcFormat == AV_PIX_FMT_GBRP14BE ||
1654
         srcFormat == AV_PIX_FMT_GBRAP16LE || srcFormat == AV_PIX_FMT_GBRAP16BE) &&
1655
        (dstFormat == AV_PIX_FMT_RGB48LE  || dstFormat == AV_PIX_FMT_RGB48BE  ||
1656
         dstFormat == AV_PIX_FMT_BGR48LE  || dstFormat == AV_PIX_FMT_BGR48BE  ||
1657
         dstFormat == AV_PIX_FMT_RGBA64LE || dstFormat == AV_PIX_FMT_RGBA64BE ||
1658
         dstFormat == AV_PIX_FMT_BGRA64LE || dstFormat == AV_PIX_FMT_BGRA64BE))
1659
        c->swscale = planarRgb16ToRgb16Wrapper;
1660

1661
    if (av_pix_fmt_desc_get(srcFormat)->comp[0].depth == 8 &&
1662
        isPackedRGB(srcFormat) && dstFormat == AV_PIX_FMT_GBRP)
1663
        c->swscale = rgbToPlanarRgbWrapper;
1664

1665
    if (isBayer(srcFormat)) {
1666
        if (dstFormat == AV_PIX_FMT_RGB24)
1667
            c->swscale = bayer_to_rgb24_wrapper;
1668
        else if (dstFormat == AV_PIX_FMT_YUV420P)
1669
            c->swscale = bayer_to_yv12_wrapper;
1670
        else if (!isBayer(dstFormat)) {
1671
            av_log(c, AV_LOG_ERROR, "unsupported bayer conversion\n");
1672
            av_assert0(0);
1673
        }
1674
    }
1675

1676
    /* bswap 16 bits per pixel/component packed formats */
1677
    if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_BGGR16) ||
1678
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_RGGB16) ||
1679
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GBRG16) ||
1680
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GRBG16) ||
1681
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR444) ||
1682
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR48)  ||
1683
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGRA64) ||
1684
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR555) ||
1685
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR565) ||
1686
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGRA64) ||
1687
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY16) ||
1688
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YA16)   ||
1689
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_AYUV64) ||
1690
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP9)  ||
1691
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP10) ||
1692
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP12) ||
1693
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP14) ||
1694
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP16) ||
1695
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP16) ||
1696
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB444) ||
1697
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB48)  ||
1698
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGBA64) ||
1699
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB555) ||
1700
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB565) ||
1701
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGBA64) ||
1702
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_XYZ12)  ||
1703
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P9)  ||
1704
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P10) ||
1705
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P12) ||
1706
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P14) ||
1707
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P16) ||
1708
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P9)  ||
1709
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P10) ||
1710
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P12) ||
1711
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P14) ||
1712
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P16) ||
1713
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV440P10) ||
1714
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV440P12) ||
1715
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P9)  ||
1716
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P10) ||
1717
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P12) ||
1718
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P14) ||
1719
        IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P16))
1720
        c->swscale = packed_16bpc_bswap;
1721

1722
    if (usePal(srcFormat) && isByteRGB(dstFormat))
1723
        c->swscale = palToRgbWrapper;
1724

1725
    if (srcFormat == AV_PIX_FMT_YUV422P) {
1726
        if (dstFormat == AV_PIX_FMT_YUYV422)
1727
            c->swscale = yuv422pToYuy2Wrapper;
1728
        else if (dstFormat == AV_PIX_FMT_UYVY422)
1729
            c->swscale = yuv422pToUyvyWrapper;
1730
    }
1731

1732
    /* LQ converters if -sws 0 or -sws 4*/
1733
    if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
1734
        /* yv12_to_yuy2 */
1735
        if (srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) {
1736
            if (dstFormat == AV_PIX_FMT_YUYV422)
1737
                c->swscale = planarToYuy2Wrapper;
1738
            else if (dstFormat == AV_PIX_FMT_UYVY422)
1739
                c->swscale = planarToUyvyWrapper;
1740
        }
1741
    }
1742
    if (srcFormat == AV_PIX_FMT_YUYV422 &&
1743
       (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
1744
        c->swscale = yuyvToYuv420Wrapper;
1745
    if (srcFormat == AV_PIX_FMT_UYVY422 &&
1746
       (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
1747
        c->swscale = uyvyToYuv420Wrapper;
1748
    if (srcFormat == AV_PIX_FMT_YUYV422 && dstFormat == AV_PIX_FMT_YUV422P)
1749
        c->swscale = yuyvToYuv422Wrapper;
1750
    if (srcFormat == AV_PIX_FMT_UYVY422 && dstFormat == AV_PIX_FMT_YUV422P)
1751
        c->swscale = uyvyToYuv422Wrapper;
1752

1753
#define isPlanarGray(x) (isGray(x) && (x) != AV_PIX_FMT_YA8 && (x) != AV_PIX_FMT_YA16LE && (x) != AV_PIX_FMT_YA16BE)
1754
    /* simple copy */
1755
    if ( srcFormat == dstFormat ||
1756
        (srcFormat == AV_PIX_FMT_YUVA420P && dstFormat == AV_PIX_FMT_YUV420P) ||
1757
        (srcFormat == AV_PIX_FMT_YUV420P && dstFormat == AV_PIX_FMT_YUVA420P) ||
1758
        (isPlanarYUV(srcFormat) && isPlanarGray(dstFormat)) ||
1759
        (isPlanarYUV(dstFormat) && isPlanarGray(srcFormat)) ||
1760
        (isPlanarGray(dstFormat) && isPlanarGray(srcFormat)) ||
1761
        (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat) &&
1762
         c->chrDstHSubSample == c->chrSrcHSubSample &&
1763
         c->chrDstVSubSample == c->chrSrcVSubSample &&
1764
         dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 &&
1765
         dstFormat != AV_PIX_FMT_P010LE && dstFormat != AV_PIX_FMT_P010BE &&
1766
         srcFormat != AV_PIX_FMT_NV12 && srcFormat != AV_PIX_FMT_NV21 &&
1767
         srcFormat != AV_PIX_FMT_P010LE && srcFormat != AV_PIX_FMT_P010BE))
1768
    {
1769
        if (isPacked(c->srcFormat))
1770
            c->swscale = packedCopyWrapper;
1771
        else /* Planar YUV or gray */
1772
            c->swscale = planarCopyWrapper;
1773
    }
1774

1775
    if (ARCH_PPC)
1776
        ff_get_unscaled_swscale_ppc(c);
1777
     if (ARCH_ARM)
1778
         ff_get_unscaled_swscale_arm(c);
1779
}
1780

1781
/* Convert the palette to the same packed 32-bit format as the palette */
1782
void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst,
1783
                                   int num_pixels, const uint8_t *palette)
1784
{
1785
    int i;
1786

1787
    for (i = 0; i < num_pixels; i++)
1788
        ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
1789
}
1790

1791
/* Palette format: ABCD -> dst format: ABC */
1792
void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst,
1793
                                   int num_pixels, const uint8_t *palette)
1794
{
1795
    int i;
1796

1797
    for (i = 0; i < num_pixels; i++) {
1798
        //FIXME slow?
1799
        dst[0] = palette[src[i] * 4 + 0];
1800
        dst[1] = palette[src[i] * 4 + 1];
1801
        dst[2] = palette[src[i] * 4 + 2];
1802
        dst += 3;
1803
    }
1804
}
1805

1806
Product

Resources

Company
