/* * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> * * This file is part of Libav. * * Libav 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. * * Libav 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 Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <inttypes.h> #include <string.h> #include <math.h> #include <stdio.h> #include "config.h" #include <assert.h> #include "swscale.h" #include "swscale_internal.h" #include "rgb2rgb.h" #include "libavutil/intreadwrite.h" #include "libavutil/cpu.h" #include "libavutil/avutil.h" #include "libavutil/mathematics.h" #include "libavutil/bswap.h" #include "libavutil/pixdesc.h" DECLARE_ALIGNED(8, static const uint8_t, dither_8x8_1)[8][8] = { { 0, 1, 0, 1, 0, 1, 0, 1,}, { 1, 0, 1, 0, 1, 0, 1, 0,}, { 0, 1, 0, 1, 0, 1, 0, 1,}, { 1, 0, 1, 0, 1, 0, 1, 0,}, { 0, 1, 0, 1, 0, 1, 0, 1,}, { 1, 0, 1, 0, 1, 0, 1, 0,}, { 0, 1, 0, 1, 0, 1, 0, 1,}, { 1, 0, 1, 0, 1, 0, 1, 0,}, }; DECLARE_ALIGNED(8, static const uint8_t, dither_8x8_3)[8][8] = { { 1, 2, 1, 2, 1, 2, 1, 2,}, { 3, 0, 3, 0, 3, 0, 3, 0,}, { 1, 2, 1, 2, 1, 2, 1, 2,}, { 3, 0, 3, 0, 3, 0, 3, 0,}, { 1, 2, 1, 2, 1, 2, 1, 2,}, { 3, 0, 3, 0, 3, 0, 3, 0,}, { 1, 2, 1, 2, 1, 2, 1, 2,}, { 3, 0, 3, 0, 3, 0, 3, 0,}, }; DECLARE_ALIGNED(8, static const uint8_t, dither_8x8_64)[8][8] = { { 18, 34, 30, 46, 17, 33, 29, 45,}, { 50, 2, 62, 14, 49, 1, 61, 13,}, { 26, 42, 22, 38, 25, 41, 21, 37,}, { 58, 10, 54, 6, 57, 9, 53, 5,}, { 16, 32, 28, 44, 19, 35, 31, 47,}, { 48, 0, 60, 12, 51, 3, 63, 15,}, { 24, 40, 20, 36, 27, 43, 23, 39,}, { 56, 8, 52, 4, 59, 11, 55, 7,}, }; DECLARE_ALIGNED(8, static const uint8_t, dither_8x8_256)[8][8] = { { 72, 136, 120, 184, 68, 132, 116, 180,}, { 200, 8, 248, 56, 196, 4, 244, 52,}, { 104, 168, 88, 152, 100, 164, 84, 148,}, { 232, 40, 216, 24, 228, 36, 212, 20,}, { 64, 128, 102, 176, 76, 140, 124, 188,}, { 192, 0, 240, 48, 204, 12, 252, 60,}, { 96, 160, 80, 144, 108, 172, 92, 156,}, { 224, 32, 208, 16, 236, 44, 220, 28,}, }; #define RGB2YUV_SHIFT 15 #define BY ( (int) (0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) #define BV (-(int) (0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) #define BU ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) #define GY ( (int) (0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) #define GV (-(int) (0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) #define GU (-(int) (0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) #define RY ( (int) (0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) #define RV ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) #define RU (-(int) (0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) static void fillPlane(uint8_t *plane, int stride, int width, int height, int y, uint8_t val) { int i; uint8_t *ptr = plane + stride * y; for (i = 0; i < height; i++) { memset(ptr, val, width); ptr += stride; } } static void fill_plane9or10(uint8_t *plane, int stride, int width, int height, int y, uint8_t val, const int dst_depth, const int big_endian) { int i, j; uint16_t *dst = (uint16_t *) (plane + stride * y); #define FILL8TO9_OR_10(wfunc) \ for (i = 0; i < height; i++) { \ for (j = 0; j < width; j++) { \ wfunc(&dst[j], (val << (dst_depth - 8)) | \ (val >> (16 - dst_depth))); \ } \ dst += stride / 2; \ } if (big_endian) { FILL8TO9_OR_10(AV_WB16); } else { FILL8TO9_OR_10(AV_WL16); } } static void copyPlane(const uint8_t *src, int srcStride, int srcSliceY, int srcSliceH, int width, uint8_t *dst, int dstStride) { dst += dstStride * srcSliceY; if (dstStride == srcStride && srcStride > 0) { memcpy(dst, src, srcSliceH * dstStride); } else { int i; for (i = 0; i < srcSliceH; i++) { memcpy(dst, src, width); src += srcStride; dst += dstStride; } } } static int planarToNv12Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) { uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY / 2; copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW, dstParam[0], dstStride[0]); if (c->dstFormat == AV_PIX_FMT_NV12) interleaveBytes(src[1], src[2], dst, c->srcW / 2, srcSliceH / 2, srcStride[1], srcStride[2], dstStride[0]); else interleaveBytes(src[2], src[1], dst, c->srcW / 2, srcSliceH / 2, srcStride[2], srcStride[1], dstStride[0]); return srcSliceH; } static int planarToYuy2Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) { uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY; yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]); return srcSliceH; } static int planarToUyvyWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) { uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY; yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]); return srcSliceH; } static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) { uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY; yuv422ptoyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]); return srcSliceH; } static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) { uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY; yuv422ptouyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]); return srcSliceH; } static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) { uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY; uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2; uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2; yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); if (dstParam[3]) fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); return srcSliceH; } static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) { uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY; uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY; uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY; yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); return srcSliceH; } static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) { uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY; uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2; uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2; uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); if (dstParam[3]) fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); return srcSliceH; } static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) { uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY; uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY; uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY; uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); return srcSliceH; } static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette) { int i; for (i = 0; i < num_pixels; i++) ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | (src[(i << 1) + 1] << 24); } static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette) { int i; for (i = 0; i < num_pixels; i++) ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | src[(i << 1) + 1]; } static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette) { int i; for (i = 0; i < num_pixels; i++) { //FIXME slow? dst[0] = palette[src[i << 1] * 4 + 0]; dst[1] = palette[src[i << 1] * 4 + 1]; dst[2] = palette[src[i << 1] * 4 + 2]; dst += 3; } } static int packed_16bpc_bswap(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { int i, j; int srcstr = srcStride[0] >> 1; int dststr = dstStride[0] >> 1; uint16_t *dstPtr = (uint16_t *) dst[0]; const uint16_t *srcPtr = (const uint16_t *) src[0]; int min_stride = FFMIN(srcstr, dststr); for (i = 0; i < srcSliceH; i++) { for (j = 0; j < min_stride; j++) { dstPtr[j] = av_bswap16(srcPtr[j]); } srcPtr += srcstr; dstPtr += dststr; } return srcSliceH; } static int palToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { const enum AVPixelFormat srcFormat = c->srcFormat; const enum AVPixelFormat dstFormat = c->dstFormat; void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette) = NULL; int i; uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY; const uint8_t *srcPtr = src[0]; if (srcFormat == AV_PIX_FMT_Y400A) { switch (dstFormat) { case AV_PIX_FMT_RGB32 : conv = gray8aToPacked32; break; case AV_PIX_FMT_BGR32 : conv = gray8aToPacked32; break; case AV_PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break; case AV_PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break; case AV_PIX_FMT_RGB24 : conv = gray8aToPacked24; break; case AV_PIX_FMT_BGR24 : conv = gray8aToPacked24; break; } } else if (usePal(srcFormat)) { switch (dstFormat) { case AV_PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break; case AV_PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break; case AV_PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break; case AV_PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break; case AV_PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break; case AV_PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break; } } if (!conv) av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n", sws_format_name(srcFormat), sws_format_name(dstFormat)); else { for (i = 0; i < srcSliceH; i++) { conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb); srcPtr += srcStride[0]; dstPtr += dstStride[0]; } } return srcSliceH; } static void gbr24ptopacked24(const uint8_t *src[], int srcStride[], uint8_t *dst, int dstStride, int srcSliceH, int width) { int x, h, i; for (h = 0; h < srcSliceH; h++) { uint8_t *dest = dst + dstStride * h; for (x = 0; x < width; x++) { *dest++ = src[0][x]; *dest++ = src[1][x]; *dest++ = src[2][x]; } for (i = 0; i < 3; i++) src[i] += srcStride[i]; } } static void gbr24ptopacked32(const uint8_t *src[], int srcStride[], uint8_t *dst, int dstStride, int srcSliceH, int alpha_first, int width) { int x, h, i; for (h = 0; h < srcSliceH; h++) { uint8_t *dest = dst + dstStride * h; if (alpha_first) { for (x = 0; x < width; x++) { *dest++ = 0xff; *dest++ = src[0][x]; *dest++ = src[1][x]; *dest++ = src[2][x]; } } else { for (x = 0; x < width; x++) { *dest++ = src[0][x]; *dest++ = src[1][x]; *dest++ = src[2][x]; *dest++ = 0xff; } } for (i = 0; i < 3; i++) src[i] += srcStride[i]; } } static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { int alpha_first = 0; const uint8_t *src102[] = { src[1], src[0], src[2] }; const uint8_t *src201[] = { src[2], src[0], src[1] }; int stride102[] = { srcStride[1], srcStride[0], srcStride[2] }; int stride201[] = { srcStride[2], srcStride[0], srcStride[1] }; if (c->srcFormat != AV_PIX_FMT_GBRP) { av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n", av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat)); return srcSliceH; } switch (c->dstFormat) { case AV_PIX_FMT_BGR24: gbr24ptopacked24(src102, stride102, dst[0] + srcSliceY * dstStride[0], dstStride[0], srcSliceH, c->srcW); break; case AV_PIX_FMT_RGB24: gbr24ptopacked24(src201, stride201, dst[0] + srcSliceY * dstStride[0], dstStride[0], srcSliceH, c->srcW); break; case AV_PIX_FMT_ARGB: alpha_first = 1; case AV_PIX_FMT_RGBA: gbr24ptopacked32(src201, stride201, dst[0] + srcSliceY * dstStride[0], dstStride[0], srcSliceH, alpha_first, c->srcW); break; case AV_PIX_FMT_ABGR: alpha_first = 1; case AV_PIX_FMT_BGRA: gbr24ptopacked32(src102, stride102, dst[0] + srcSliceY * dstStride[0], dstStride[0], srcSliceH, alpha_first, c->srcW); break; default: av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n", av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat)); } return srcSliceH; } static void packedtogbr24p(const uint8_t *src, int srcStride, uint8_t *dst[], int dstStride[], int srcSliceH, int alpha_first, int inc_size, int width) { uint8_t *dest[3]; int x, h; dest[0] = dst[0]; dest[1] = dst[1]; dest[2] = dst[2]; if (alpha_first) src++; for (h = 0; h < srcSliceH; h++) { for (x = 0; x < width; x++) { dest[0][x] = src[0]; dest[1][x] = src[1]; dest[2][x] = src[2]; src += inc_size; } src += srcStride - width * inc_size; dest[0] += dstStride[0]; dest[1] += dstStride[1]; dest[2] += dstStride[2]; } } static int rgbToPlanarRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { int alpha_first = 0; int stride102[] = { dstStride[1], dstStride[0], dstStride[2] }; int stride201[] = { dstStride[2], dstStride[0], dstStride[1] }; uint8_t *dst102[] = { dst[1] + srcSliceY * dstStride[1], dst[0] + srcSliceY * dstStride[0], dst[2] + srcSliceY * dstStride[2] }; uint8_t *dst201[] = { dst[2] + srcSliceY * dstStride[2], dst[0] + srcSliceY * dstStride[0], dst[1] + srcSliceY * dstStride[1] }; switch (c->srcFormat) { case AV_PIX_FMT_RGB24: packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201, stride201, srcSliceH, alpha_first, 3, c->srcW); break; case AV_PIX_FMT_BGR24: packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102, stride102, srcSliceH, alpha_first, 3, c->srcW); break; case AV_PIX_FMT_ARGB: alpha_first = 1; case AV_PIX_FMT_RGBA: packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201, stride201, srcSliceH, alpha_first, 4, c->srcW); break; case AV_PIX_FMT_ABGR: alpha_first = 1; case AV_PIX_FMT_BGRA: packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102, stride102, srcSliceH, alpha_first, 4, c->srcW); break; default: av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n", av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat)); } return srcSliceH; } #define isRGBA32(x) ( \ (x) == AV_PIX_FMT_ARGB \ || (x) == AV_PIX_FMT_RGBA \ || (x) == AV_PIX_FMT_BGRA \ || (x) == AV_PIX_FMT_ABGR \ ) /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */ typedef void (* rgbConvFn) (const uint8_t *, uint8_t *, int); static rgbConvFn findRgbConvFn(SwsContext *c) { const enum AVPixelFormat srcFormat = c->srcFormat; const enum AVPixelFormat dstFormat = c->dstFormat; const int srcId = c->srcFormatBpp; const int dstId = c->dstFormatBpp; rgbConvFn conv = NULL; const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(srcFormat); const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(dstFormat); #define IS_NOT_NE(bpp, desc) \ (((bpp + 7) >> 3) == 2 && \ (!(desc->flags & AV_PIX_FMT_FLAG_BE) != !HAVE_BIGENDIAN)) /* if this is non-native rgb444/555/565, don't handle it here. */ if (IS_NOT_NE(srcId, desc_src) || IS_NOT_NE(dstId, desc_dst)) return NULL; #define CONV_IS(src, dst) (srcFormat == AV_PIX_FMT_##src && dstFormat == AV_PIX_FMT_##dst) if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) { if ( CONV_IS(ABGR, RGBA) || CONV_IS(ARGB, BGRA) || CONV_IS(BGRA, ARGB) || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210; else if (CONV_IS(ABGR, ARGB) || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321; else if (CONV_IS(ABGR, BGRA) || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230; else if (CONV_IS(BGRA, RGBA) || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103; else if (CONV_IS(BGRA, ABGR) || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012; } else /* BGR -> BGR */ if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) || (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) { switch (srcId | (dstId << 16)) { case 0x000F000C: conv = rgb12to15; break; case 0x000F0010: conv = rgb16to15; break; case 0x000F0018: conv = rgb24to15; break; case 0x000F0020: conv = rgb32to15; break; case 0x0010000F: conv = rgb15to16; break; case 0x00100018: conv = rgb24to16; break; case 0x00100020: conv = rgb32to16; break; case 0x0018000F: conv = rgb15to24; break; case 0x00180010: conv = rgb16to24; break; case 0x00180020: conv = rgb32to24; break; case 0x0020000F: conv = rgb15to32; break; case 0x00200010: conv = rgb16to32; break; case 0x00200018: conv = rgb24to32; break; } } else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) || (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) { switch (srcId | (dstId << 16)) { case 0x000C000C: conv = rgb12tobgr12; break; case 0x000F000F: conv = rgb15tobgr15; break; case 0x000F0010: conv = rgb16tobgr15; break; case 0x000F0018: conv = rgb24tobgr15; break; case 0x000F0020: conv = rgb32tobgr15; break; case 0x0010000F: conv = rgb15tobgr16; break; case 0x00100010: conv = rgb16tobgr16; break; case 0x00100018: conv = rgb24tobgr16; break; case 0x00100020: conv = rgb32tobgr16; break; case 0x0018000F: conv = rgb15tobgr24; break; case 0x00180010: conv = rgb16tobgr24; break; case 0x00180018: conv = rgb24tobgr24; break; case 0x00180020: conv = rgb32tobgr24; break; case 0x0020000F: conv = rgb15tobgr32; break; case 0x00200010: conv = rgb16tobgr32; break; case 0x00200018: conv = rgb24tobgr32; break; } } return conv; } /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */ static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { const enum AVPixelFormat srcFormat = c->srcFormat; const enum AVPixelFormat dstFormat = c->dstFormat; const int srcBpp = (c->srcFormatBpp + 7) >> 3; const int dstBpp = (c->dstFormatBpp + 7) >> 3; rgbConvFn conv = findRgbConvFn(c); if (!conv) { av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n", sws_format_name(srcFormat), sws_format_name(dstFormat)); } else { const uint8_t *srcPtr = src[0]; uint8_t *dstPtr = dst[0]; if ((srcFormat == AV_PIX_FMT_RGB32_1 || srcFormat == AV_PIX_FMT_BGR32_1) && !isRGBA32(dstFormat)) srcPtr += ALT32_CORR; if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) && !isRGBA32(srcFormat)) dstPtr += ALT32_CORR; if (dstStride[0] * srcBpp == srcStride[0] * dstBpp && srcStride[0] > 0 && !(srcStride[0] % srcBpp)) conv(srcPtr, dstPtr + dstStride[0] * srcSliceY, srcSliceH * srcStride[0]); else { int i; dstPtr += dstStride[0] * srcSliceY; for (i = 0; i < srcSliceH; i++) { conv(srcPtr, dstPtr, c->srcW * srcBpp); srcPtr += srcStride[0]; dstPtr += dstStride[0]; } } } return srcSliceH; } static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { rgb24toyv12( src[0], dst[0] + srcSliceY * dstStride[0], dst[1] + (srcSliceY >> 1) * dstStride[1], dst[2] + (srcSliceY >> 1) * dstStride[2], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); if (dst[3]) fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); return srcSliceH; } static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW, dst[0], dstStride[0]); planar2x(src[1], dst[1] + dstStride[1] * (srcSliceY >> 1), c->chrSrcW, srcSliceH >> 2, srcStride[1], dstStride[1]); planar2x(src[2], dst[2] + dstStride[2] * (srcSliceY >> 1), c->chrSrcW, srcSliceH >> 2, srcStride[2], dstStride[2]); if (dst[3]) fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); return srcSliceH; } /* unscaled copy like stuff (assumes nearly identical formats) */ static int packedCopyWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { if (dstStride[0] == srcStride[0] && srcStride[0] > 0) memcpy(dst[0] + dstStride[0] * srcSliceY, src[0], srcSliceH * dstStride[0]); else { int i; const uint8_t *srcPtr = src[0]; uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY; int length = 0; /* universal length finder */ while (length + c->srcW <= FFABS(dstStride[0]) && length + c->srcW <= FFABS(srcStride[0])) length += c->srcW; assert(length != 0); for (i = 0; i < srcSliceH; i++) { memcpy(dstPtr, srcPtr, length); srcPtr += srcStride[0]; dstPtr += dstStride[0]; } } return srcSliceH; } #define clip9(x) av_clip_uintp2(x, 9) #define clip10(x) av_clip_uintp2(x, 10) #define DITHER_COPY(dst, dstStride, wfunc, src, srcStride, rfunc, dithers, shift, clip) \ for (i = 0; i < height; i++) { \ const uint8_t *dither = dithers[i & 7]; \ for (j = 0; j < length - 7; j += 8) { \ wfunc(&dst[j + 0], clip((rfunc(&src[j + 0]) + dither[0]) >> shift)); \ wfunc(&dst[j + 1], clip((rfunc(&src[j + 1]) + dither[1]) >> shift)); \ wfunc(&dst[j + 2], clip((rfunc(&src[j + 2]) + dither[2]) >> shift)); \ wfunc(&dst[j + 3], clip((rfunc(&src[j + 3]) + dither[3]) >> shift)); \ wfunc(&dst[j + 4], clip((rfunc(&src[j + 4]) + dither[4]) >> shift)); \ wfunc(&dst[j + 5], clip((rfunc(&src[j + 5]) + dither[5]) >> shift)); \ wfunc(&dst[j + 6], clip((rfunc(&src[j + 6]) + dither[6]) >> shift)); \ wfunc(&dst[j + 7], clip((rfunc(&src[j + 7]) + dither[7]) >> shift)); \ } \ for (; j < length; j++) \ wfunc(&dst[j], (rfunc(&src[j]) + dither[j & 7]) >> shift); \ dst += dstStride; \ src += srcStride; \ } static int planarCopyWrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[]) { const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat); const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat); int plane, i, j; for (plane = 0; plane < 4; plane++) { int length = (plane == 0 || plane == 3) ? c->srcW : -((-c->srcW ) >> c->chrDstHSubSample); int y = (plane == 0 || plane == 3) ? srcSliceY: -((-srcSliceY) >> c->chrDstVSubSample); int height = (plane == 0 || plane == 3) ? srcSliceH: -((-srcSliceH) >> c->chrDstVSubSample); const uint8_t *srcPtr = src[plane]; uint8_t *dstPtr = dst[plane] + dstStride[plane] * y; if (!dst[plane]) continue; // ignore palette for GRAY8 if (plane == 1 && !dst[2]) continue; if (!src[plane] || (plane == 1 && !src[2])) { int val = (plane == 3) ? 255 : 128; if (is16BPS(c->dstFormat)) length *= 2; if (is9_OR_10BPS(c->dstFormat)) { fill_plane9or10(dst[plane], dstStride[plane], length, height, y, val, desc_dst->comp[plane].depth_minus1 + 1, isBE(c->dstFormat)); } else fillPlane(dst[plane], dstStride[plane], length, height, y, val); } else { if (is9_OR_10BPS(c->srcFormat)) { const int src_depth = desc_src->comp[plane].depth_minus1 + 1; const int dst_depth = desc_dst->comp[plane].depth_minus1 + 1; const uint16_t *srcPtr2 = (const uint16_t *) srcPtr; if (is16BPS(c->dstFormat)) { uint16_t *dstPtr2 = (uint16_t *) dstPtr; #define COPY9_OR_10TO16(rfunc, wfunc) \ for (i = 0; i < height; i++) { \ for (j = 0; j < length; j++) { \ int srcpx = rfunc(&srcPtr2[j]); \ wfunc(&dstPtr2[j], (srcpx << (16 - src_depth)) | (srcpx >> (2 * src_depth - 16))); \ } \ dstPtr2 += dstStride[plane] / 2; \ srcPtr2 += srcStride[plane] / 2; \ } if (isBE(c->dstFormat)) { if (isBE(c->srcFormat)) { COPY9_OR_10TO16(AV_RB16, AV_WB16); } else { COPY9_OR_10TO16(AV_RL16, AV_WB16); } } else { if (isBE(c->srcFormat)) { COPY9_OR_10TO16(AV_RB16, AV_WL16); } else { COPY9_OR_10TO16(AV_RL16, AV_WL16); } } } else if (is9_OR_10BPS(c->dstFormat)) { uint16_t *dstPtr2 = (uint16_t *) dstPtr; #define COPY9_OR_10TO9_OR_10(loop) \ for (i = 0; i < height; i++) { \ for (j = 0; j < length; j++) { \ loop; \ } \ dstPtr2 += dstStride[plane] / 2; \ srcPtr2 += srcStride[plane] / 2; \ } #define COPY9_OR_10TO9_OR_10_2(rfunc, wfunc) \ if (dst_depth > src_depth) { \ COPY9_OR_10TO9_OR_10(int srcpx = rfunc(&srcPtr2[j]); \ wfunc(&dstPtr2[j], (srcpx << 1) | (srcpx >> 9))); \ } else if (dst_depth < src_depth) { \ DITHER_COPY(dstPtr2, dstStride[plane] / 2, wfunc, \ srcPtr2, srcStride[plane] / 2, rfunc, \ dither_8x8_1, 1, clip9); \ } else { \ COPY9_OR_10TO9_OR_10(wfunc(&dstPtr2[j], rfunc(&srcPtr2[j]))); \ } if (isBE(c->dstFormat)) { if (isBE(c->srcFormat)) { COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WB16); } else { COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WB16); } } else { if (isBE(c->srcFormat)) { COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WL16); } else { COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WL16); } } } else { #define W8(a, b) { *(a) = (b); } #define COPY9_OR_10TO8(rfunc) \ if (src_depth == 9) { \ DITHER_COPY(dstPtr, dstStride[plane], W8, \ srcPtr2, srcStride[plane] / 2, rfunc, \ dither_8x8_1, 1, av_clip_uint8); \ } else { \ DITHER_COPY(dstPtr, dstStride[plane], W8, \ srcPtr2, srcStride[plane] / 2, rfunc, \ dither_8x8_3, 2, av_clip_uint8); \ } if (isBE(c->srcFormat)) { COPY9_OR_10TO8(AV_RB16); } else { COPY9_OR_10TO8(AV_RL16); } } } else if (is9_OR_10BPS(c->dstFormat)) { const int dst_depth = desc_dst->comp[plane].depth_minus1 + 1; uint16_t *dstPtr2 = (uint16_t *) dstPtr; if (is16BPS(c->srcFormat)) { const uint16_t *srcPtr2 = (const uint16_t *) srcPtr; #define COPY16TO9_OR_10(rfunc, wfunc) \ if (dst_depth == 9) { \ DITHER_COPY(dstPtr2, dstStride[plane] / 2, wfunc, \ srcPtr2, srcStride[plane] / 2, rfunc, \ ff_dither_8x8_128, 7, clip9); \ } else { \ DITHER_COPY(dstPtr2, dstStride[plane] / 2, wfunc, \ srcPtr2, srcStride[plane] / 2, rfunc, \ dither_8x8_64, 6, clip10); \ } if (isBE(c->dstFormat)) { if (isBE(c->srcFormat)) { COPY16TO9_OR_10(AV_RB16, AV_WB16); } else { COPY16TO9_OR_10(AV_RL16, AV_WB16); } } else { if (isBE(c->srcFormat)) { COPY16TO9_OR_10(AV_RB16, AV_WL16); } else { COPY16TO9_OR_10(AV_RL16, AV_WL16); } } } else /* 8bit */ { #define COPY8TO9_OR_10(wfunc) \ for (i = 0; i < height; i++) { \ for (j = 0; j < length; j++) { \ const int srcpx = srcPtr[j]; \ wfunc(&dstPtr2[j], (srcpx << (dst_depth - 8)) | (srcpx >> (16 - dst_depth))); \ } \ dstPtr2 += dstStride[plane] / 2; \ srcPtr += srcStride[plane]; \ } if (isBE(c->dstFormat)) { COPY8TO9_OR_10(AV_WB16); } else { COPY8TO9_OR_10(AV_WL16); } } } else if (is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) { const uint16_t *srcPtr2 = (const uint16_t *) srcPtr; #define COPY16TO8(rfunc) \ DITHER_COPY(dstPtr, dstStride[plane], W8, \ srcPtr2, srcStride[plane] / 2, rfunc, \ dither_8x8_256, 8, av_clip_uint8); if (isBE(c->srcFormat)) { COPY16TO8(AV_RB16); } else { COPY16TO8(AV_RL16); } } else if (!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) { for (i = 0; i < height; i++) { for (j = 0; j < length; j++) { dstPtr[ j << 1 ] = srcPtr[j]; dstPtr[(j << 1) + 1] = srcPtr[j]; } srcPtr += srcStride[plane]; dstPtr += dstStride[plane]; } } else if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat) && isBE(c->srcFormat) != isBE(c->dstFormat)) { for (i = 0; i < height; i++) { for (j = 0; j < length; j++) ((uint16_t *) dstPtr)[j] = av_bswap16(((const uint16_t *) srcPtr)[j]); srcPtr += srcStride[plane]; dstPtr += dstStride[plane]; } } else if (dstStride[plane] == srcStride[plane] && srcStride[plane] > 0 && srcStride[plane] == length) { memcpy(dst[plane] + dstStride[plane] * y, src[plane], height * dstStride[plane]); } else { if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) length *= 2; else if (!desc_src->comp[0].depth_minus1) length >>= 3; // monowhite/black for (i = 0; i < height; i++) { memcpy(dstPtr, srcPtr, length); srcPtr += srcStride[plane]; dstPtr += dstStride[plane]; } } } } return srcSliceH; } #define IS_DIFFERENT_ENDIANESS(src_fmt, dst_fmt, pix_fmt) \ ((src_fmt == pix_fmt ## BE && dst_fmt == pix_fmt ## LE) || \ (src_fmt == pix_fmt ## LE && dst_fmt == pix_fmt ## BE)) void ff_get_unscaled_swscale(SwsContext *c) { const enum AVPixelFormat srcFormat = c->srcFormat; const enum AVPixelFormat dstFormat = c->dstFormat; const int flags = c->flags; const int dstH = c->dstH; int needsDither; needsDither = isAnyRGB(dstFormat) && c->dstFormatBpp < 24 && (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat))); /* yv12_to_nv12 */ if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) && (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)) { c->swscale = planarToNv12Wrapper; } /* yuv2bgr */ if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUV422P || srcFormat == AV_PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) && !(flags & SWS_ACCURATE_RND) && !(dstH & 1)) { c->swscale = ff_yuv2rgb_get_func_ptr(c); } if (srcFormat == AV_PIX_FMT_YUV410P && (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) { c->swscale = yvu9ToYv12Wrapper; } /* bgr24toYV12 */ if (srcFormat == AV_PIX_FMT_BGR24 && (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND)) c->swscale = bgr24ToYv12Wrapper; /* RGB/BGR -> RGB/BGR (no dither needed forms) */ if (isAnyRGB(srcFormat) && isAnyRGB(dstFormat) && findRgbConvFn(c) && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)))) c->swscale = rgbToRgbWrapper; #define isByteRGB(f) ( \ f == AV_PIX_FMT_RGB32 || \ f == AV_PIX_FMT_RGB32_1 || \ f == AV_PIX_FMT_RGB24 || \ f == AV_PIX_FMT_BGR32 || \ f == AV_PIX_FMT_BGR32_1 || \ f == AV_PIX_FMT_BGR24) if (srcFormat == AV_PIX_FMT_GBRP && isPlanar(srcFormat) && isByteRGB(dstFormat)) c->swscale = planarRgbToRgbWrapper; if (av_pix_fmt_desc_get(srcFormat)->comp[0].depth_minus1 == 7 && isPackedRGB(srcFormat) && dstFormat == AV_PIX_FMT_GBRP) c->swscale = rgbToPlanarRgbWrapper; /* bswap 16 bits per pixel/component packed formats */ if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR444) || IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR48) || IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR555) || IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR565) || IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY16) || IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB444) || IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB48) || IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB555) || IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB565) || IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_XYZ12)) c->swscale = packed_16bpc_bswap; if ((usePal(srcFormat) && ( dstFormat == AV_PIX_FMT_RGB32 || dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_RGB24 || dstFormat == AV_PIX_FMT_BGR32 || dstFormat == AV_PIX_FMT_BGR32_1 || dstFormat == AV_PIX_FMT_BGR24))) c->swscale = palToRgbWrapper; if (srcFormat == AV_PIX_FMT_YUV422P) { if (dstFormat == AV_PIX_FMT_YUYV422) c->swscale = yuv422pToYuy2Wrapper; else if (dstFormat == AV_PIX_FMT_UYVY422) c->swscale = yuv422pToUyvyWrapper; } /* LQ converters if -sws 0 or -sws 4*/ if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) { /* yv12_to_yuy2 */ if (srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) { if (dstFormat == AV_PIX_FMT_YUYV422) c->swscale = planarToYuy2Wrapper; else if (dstFormat == AV_PIX_FMT_UYVY422) c->swscale = planarToUyvyWrapper; } } if (srcFormat == AV_PIX_FMT_YUYV422 && (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P)) c->swscale = yuyvToYuv420Wrapper; if (srcFormat == AV_PIX_FMT_UYVY422 && (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P)) c->swscale = uyvyToYuv420Wrapper; if (srcFormat == AV_PIX_FMT_YUYV422 && dstFormat == AV_PIX_FMT_YUV422P) c->swscale = yuyvToYuv422Wrapper; if (srcFormat == AV_PIX_FMT_UYVY422 && dstFormat == AV_PIX_FMT_YUV422P) c->swscale = uyvyToYuv422Wrapper; /* simple copy */ if ( srcFormat == dstFormat || (srcFormat == AV_PIX_FMT_YUVA420P && dstFormat == AV_PIX_FMT_YUV420P) || (srcFormat == AV_PIX_FMT_YUV420P && dstFormat == AV_PIX_FMT_YUVA420P) || (isPlanarYUV(srcFormat) && isGray(dstFormat)) || (isPlanarYUV(dstFormat) && isGray(srcFormat)) || (isGray(dstFormat) && isGray(srcFormat)) || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat) && c->chrDstHSubSample == c->chrSrcHSubSample && c->chrDstVSubSample == c->chrSrcVSubSample && dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 && srcFormat != AV_PIX_FMT_NV12 && srcFormat != AV_PIX_FMT_NV21)) { if (isPacked(c->srcFormat)) c->swscale = packedCopyWrapper; else /* Planar YUV or gray */ c->swscale = planarCopyWrapper; } if (ARCH_BFIN) ff_get_unscaled_swscale_bfin(c); if (ARCH_PPC) ff_get_unscaled_swscale_ppc(c); } static void reset_ptr(const uint8_t *src[], int format) { if (!isALPHA(format)) src[3] = NULL; if (!isPlanar(format)) { src[3] = src[2] = NULL; if (!usePal(format)) src[1] = NULL; } } static int check_image_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, const int linesizes[4]) { const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); int i; for (i = 0; i < 4; i++) { int plane = desc->comp[i].plane; if (!data[plane] || !linesizes[plane]) return 0; } return 1; } /** * swscale wrapper, so we don't need to export the SwsContext. * Assumes planar YUV to be in YUV order instead of YVU. */ int attribute_align_arg sws_scale(struct SwsContext *c, const uint8_t * const srcSlice[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[]) { int i; const uint8_t *src2[4] = { srcSlice[0], srcSlice[1], srcSlice[2], srcSlice[3] }; uint8_t *dst2[4] = { dst[0], dst[1], dst[2], dst[3] }; // do not mess up sliceDir if we have a "trailing" 0-size slice if (srcSliceH == 0) return 0; if (!check_image_pointers(srcSlice, c->srcFormat, srcStride)) { av_log(c, AV_LOG_ERROR, "bad src image pointers\n"); return 0; } if (!check_image_pointers(dst, c->dstFormat, dstStride)) { av_log(c, AV_LOG_ERROR, "bad dst image pointers\n"); return 0; } if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) { av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n"); return 0; } if (c->sliceDir == 0) { if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1; } if (usePal(c->srcFormat)) { for (i = 0; i < 256; i++) { int p, r, g, b, y, u, v; if (c->srcFormat == AV_PIX_FMT_PAL8) { p = ((const uint32_t *)(srcSlice[1]))[i]; r = (p >> 16) & 0xFF; g = (p >> 8) & 0xFF; b = p & 0xFF; } else if (c->srcFormat == AV_PIX_FMT_RGB8) { r = ( i >> 5 ) * 36; g = ((i >> 2) & 7) * 36; b = ( i & 3) * 85; } else if (c->srcFormat == AV_PIX_FMT_BGR8) { b = ( i >> 6 ) * 85; g = ((i >> 3) & 7) * 36; r = ( i & 7) * 36; } else if (c->srcFormat == AV_PIX_FMT_RGB4_BYTE) { r = ( i >> 3 ) * 255; g = ((i >> 1) & 3) * 85; b = ( i & 1) * 255; } else if (c->srcFormat == AV_PIX_FMT_GRAY8 || c->srcFormat == AV_PIX_FMT_Y400A) { r = g = b = i; } else { assert(c->srcFormat == AV_PIX_FMT_BGR4_BYTE); b = ( i >> 3 ) * 255; g = ((i >> 1) & 3) * 85; r = ( i & 1) * 255; } y = av_clip_uint8((RY * r + GY * g + BY * b + ( 33 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT); u = av_clip_uint8((RU * r + GU * g + BU * b + (257 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT); v = av_clip_uint8((RV * r + GV * g + BV * b + (257 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT); c->pal_yuv[i] = y + (u << 8) + (v << 16); switch (c->dstFormat) { case AV_PIX_FMT_BGR32: #if !HAVE_BIGENDIAN case AV_PIX_FMT_RGB24: #endif c->pal_rgb[i] = r + (g << 8) + (b << 16); break; case AV_PIX_FMT_BGR32_1: #if HAVE_BIGENDIAN case AV_PIX_FMT_BGR24: #endif c->pal_rgb[i] = (r + (g << 8) + (b << 16)) << 8; break; case AV_PIX_FMT_RGB32_1: #if HAVE_BIGENDIAN case AV_PIX_FMT_RGB24: #endif c->pal_rgb[i] = (b + (g << 8) + (r << 16)) << 8; break; case AV_PIX_FMT_RGB32: #if !HAVE_BIGENDIAN case AV_PIX_FMT_BGR24: #endif default: c->pal_rgb[i] = b + (g << 8) + (r << 16); } } } // copy strides, so they can safely be modified if (c->sliceDir == 1) { // slices go from top to bottom int srcStride2[4] = { srcStride[0], srcStride[1], srcStride[2], srcStride[3] }; int dstStride2[4] = { dstStride[0], dstStride[1], dstStride[2], dstStride[3] }; reset_ptr(src2, c->srcFormat); reset_ptr((const uint8_t **) dst2, c->dstFormat); /* reset slice direction at end of frame */ if (srcSliceY + srcSliceH == c->srcH) c->sliceDir = 0; return c->swscale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2); } else { // slices go from bottom to top => we flip the image internally int srcStride2[4] = { -srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3] }; int dstStride2[4] = { -dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3] }; src2[0] += (srcSliceH - 1) * srcStride[0]; if (!usePal(c->srcFormat)) src2[1] += ((srcSliceH >> c->chrSrcVSubSample) - 1) * srcStride[1]; src2[2] += ((srcSliceH >> c->chrSrcVSubSample) - 1) * srcStride[2]; src2[3] += (srcSliceH - 1) * srcStride[3]; dst2[0] += ( c->dstH - 1) * dstStride[0]; dst2[1] += ((c->dstH >> c->chrDstVSubSample) - 1) * dstStride[1]; dst2[2] += ((c->dstH >> c->chrDstVSubSample) - 1) * dstStride[2]; dst2[3] += ( c->dstH - 1) * dstStride[3]; reset_ptr(src2, c->srcFormat); reset_ptr((const uint8_t **) dst2, c->dstFormat); /* reset slice direction at end of frame */ if (!srcSliceY) c->sliceDir = 0; return c->swscale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2); } } /* Convert the palette to the same packed 32-bit format as the palette */ void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette) { int i; for (i = 0; i < num_pixels; i++) ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]]; } /* Palette format: ABCD -> dst format: ABC */ void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette) { int i; for (i = 0; i < num_pixels; i++) { //FIXME slow? dst[0] = palette[src[i] * 4 + 0]; dst[1] = palette[src[i] * 4 + 1]; dst[2] = palette[src[i] * 4 + 2]; dst += 3; } }