ffmpeg/libswscale/swscale.c

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/*
* Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <assert.h>
#include <inttypes.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "libavutil/avassert.h"
#include "libavutil/avutil.h"
#include "libavutil/bswap.h"
#include "libavutil/cpu.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/pixdesc.h"
#include "config.h"
#include "rgb2rgb.h"
#include "swscale_internal.h"
#include "swscale.h"
DECLARE_ALIGNED(8, const uint8_t, dither_8x8_128)[8][8] = {
{ 36, 68, 60, 92, 34, 66, 58, 90, },
{ 100, 4, 124, 28, 98, 2, 122, 26, },
{ 52, 84, 44, 76, 50, 82, 42, 74, },
{ 116, 20, 108, 12, 114, 18, 106, 10, },
{ 32, 64, 56, 88, 38, 70, 62, 94, },
{ 96, 0, 120, 24, 102, 6, 126, 30, },
{ 48, 80, 40, 72, 54, 86, 46, 78, },
{ 112, 16, 104, 8, 118, 22, 110, 14, },
};
DECLARE_ALIGNED(8, const uint8_t, ff_sws_pb_64)[8] = {
64, 64, 64, 64, 64, 64, 64, 64
};
Merge remote-tracking branch 'qatar/master' * qatar/master: swscale: make yuv2yuv1 use named registers. h264: mark h264_idct_add8_10 with number of XMM registers. swscale: fix V plane memory location in bilinear/unscaled RGB/YUYV case. vp8: always update next_framep[] before returning from decode_frame(). avconv: estimate next_dts from framerate if it is set. avconv: better next_dts usage. avconv: rename InputStream.pts to last_dts. avconv: reduce overloading for InputStream.pts. avconv: rename InputStream.next_pts to next_dts. avconv: rework -t handling for encoding. avconv: set encoder timebase for subtitles. pva-demux test: add -vn swscale: K&R formatting cosmetics for SPARC code apedec: allow the user to set the maximum number of output samples per call apedec: do not unnecessarily zero output samples for mono frames apedec: allocate a single flat buffer for decoded samples apedec: use sizeof(field) instead of sizeof(type) swscale: split C output functions into separate file. swscale: Split C input functions into separate file. bytestream: Add bytestream2 writing API. The avconv changes are due to massive regressions and bugs not merged yet. Conflicts: ffmpeg.c libavcodec/vp8.c libswscale/swscale.c libswscale/x86/swscale_template.c tests/fate/demux.mak tests/ref/lavf/asf tests/ref/lavf/avi tests/ref/lavf/mkv tests/ref/lavf/mpg tests/ref/lavf/nut tests/ref/lavf/ogg tests/ref/lavf/rm tests/ref/lavf/ts tests/ref/seek/lavf_avi tests/ref/seek/lavf_mkv tests/ref/seek/lavf_rm Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-08 02:59:09 +01:00
static av_always_inline 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 hScale16To19_c(SwsContext *c, int16_t *_dst, int dstW,
const uint8_t *_src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
int i;
int32_t *dst = (int32_t *) _dst;
const uint16_t *src = (const uint16_t *) _src;
int bits = av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1;
int sh = bits - 4;
2011-07-03 02:08:45 +02:00
if((isAnyRGB(c->srcFormat) || c->srcFormat==PIX_FMT_PAL8) && av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1<15)
sh= 9;
for (i = 0; i < dstW; i++) {
int j;
int srcPos = filterPos[i];
int val = 0;
for (j = 0; j < filterSize; j++) {
val += src[srcPos + j] * filter[filterSize * i + j];
}
// filter=14 bit, input=16 bit, output=30 bit, >> 11 makes 19 bit
dst[i] = FFMIN(val >> sh, (1 << 19) - 1);
}
}
static void hScale16To15_c(SwsContext *c, int16_t *dst, int dstW,
const uint8_t *_src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
int i;
const uint16_t *src = (const uint16_t *) _src;
int sh = av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1;
if(sh<15)
sh= isAnyRGB(c->srcFormat) || c->srcFormat==PIX_FMT_PAL8 ? 13 : av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1;
for (i = 0; i < dstW; i++) {
int j;
int srcPos = filterPos[i];
int val = 0;
for (j = 0; j < filterSize; j++) {
val += src[srcPos + j] * filter[filterSize * i + j];
}
// filter=14 bit, input=16 bit, output=30 bit, >> 15 makes 15 bit
dst[i] = FFMIN(val >> sh, (1 << 15) - 1);
}
}
// bilinear / bicubic scaling
static void hScale8To15_c(SwsContext *c, int16_t *dst, int dstW,
const uint8_t *src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
int i;
for (i = 0; i < dstW; i++) {
int j;
int srcPos = filterPos[i];
int val = 0;
for (j = 0; j < filterSize; j++) {
val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
}
dst[i] = FFMIN(val >> 7, (1 << 15) - 1); // the cubic equation does overflow ...
}
}
static void hScale8To19_c(SwsContext *c, int16_t *_dst, int dstW,
const uint8_t *src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
int i;
int32_t *dst = (int32_t *) _dst;
for (i = 0; i < dstW; i++) {
int j;
int srcPos = filterPos[i];
int val = 0;
for (j = 0; j < filterSize; j++) {
val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
}
dst[i] = FFMIN(val >> 3, (1 << 19) - 1); // the cubic equation does overflow ...
}
}
// FIXME all pal and rgb srcFormats could do this convertion as well
// FIXME all scalers more complex than bilinear could do half of this transform
static void chrRangeToJpeg_c(int16_t *dstU, int16_t *dstV, int width)
{
int i;
for (i = 0; i < width; i++) {
dstU[i] = (FFMIN(dstU[i], 30775) * 4663 - 9289992) >> 12; // -264
dstV[i] = (FFMIN(dstV[i], 30775) * 4663 - 9289992) >> 12; // -264
}
}
static void chrRangeFromJpeg_c(int16_t *dstU, int16_t *dstV, int width)
{
int i;
for (i = 0; i < width; i++) {
dstU[i] = (dstU[i] * 1799 + 4081085) >> 11; // 1469
dstV[i] = (dstV[i] * 1799 + 4081085) >> 11; // 1469
}
}
static void lumRangeToJpeg_c(int16_t *dst, int width)
{
int i;
for (i = 0; i < width; i++)
dst[i] = (FFMIN(dst[i], 30189) * 19077 - 39057361) >> 14;
}
static void lumRangeFromJpeg_c(int16_t *dst, int width)
{
int i;
for (i = 0; i < width; i++)
dst[i] = (dst[i] * 14071 + 33561947) >> 14;
}
static void chrRangeToJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width)
{
int i;
int32_t *dstU = (int32_t *) _dstU;
int32_t *dstV = (int32_t *) _dstV;
for (i = 0; i < width; i++) {
dstU[i] = (FFMIN(dstU[i], 30775 << 4) * 4663 - (9289992 << 4)) >> 12; // -264
dstV[i] = (FFMIN(dstV[i], 30775 << 4) * 4663 - (9289992 << 4)) >> 12; // -264
}
}
static void chrRangeFromJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width)
{
int i;
int32_t *dstU = (int32_t *) _dstU;
int32_t *dstV = (int32_t *) _dstV;
for (i = 0; i < width; i++) {
dstU[i] = (dstU[i] * 1799 + (4081085 << 4)) >> 11; // 1469
dstV[i] = (dstV[i] * 1799 + (4081085 << 4)) >> 11; // 1469
}
}
static void lumRangeToJpeg16_c(int16_t *_dst, int width)
{
int i;
int32_t *dst = (int32_t *) _dst;
for (i = 0; i < width; i++)
dst[i] = (FFMIN(dst[i], 30189 << 4) * 4769 - (39057361 << 2)) >> 12;
}
static void lumRangeFromJpeg16_c(int16_t *_dst, int width)
{
int i;
int32_t *dst = (int32_t *) _dst;
for (i = 0; i < width; i++)
dst[i] = (dst[i]*(14071/4) + (33561947<<4)/4)>>12;
}
static void hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth,
const uint8_t *src, int srcW, int xInc)
{
int i;
unsigned int xpos = 0;
for (i = 0; i < dstWidth; i++) {
register unsigned int xx = xpos >> 16;
register unsigned int xalpha = (xpos & 0xFFFF) >> 9;
dst[i] = (src[xx] << 7) + (src[xx + 1] - src[xx]) * xalpha;
xpos += xInc;
}
for (i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--)
dst[i] = src[srcW-1]*128;
}
// *** horizontal scale Y line to temp buffer
static av_always_inline void hyscale(SwsContext *c, int16_t *dst, int dstWidth,
const uint8_t *src_in[4],
int srcW, int xInc,
const int16_t *hLumFilter,
const int32_t *hLumFilterPos,
int hLumFilterSize,
uint8_t *formatConvBuffer,
uint32_t *pal, int isAlpha)
{
void (*toYV12)(uint8_t *, const uint8_t *, const uint8_t *, const uint8_t *, int, uint32_t *) =
isAlpha ? c->alpToYV12 : c->lumToYV12;
void (*convertRange)(int16_t *, int) = isAlpha ? NULL : c->lumConvertRange;
const uint8_t *src = src_in[isAlpha ? 3 : 0];
if (toYV12) {
toYV12(formatConvBuffer, src, src_in[1], src_in[2], srcW, pal);
src = formatConvBuffer;
} else if (c->readLumPlanar && !isAlpha) {
c->readLumPlanar(formatConvBuffer, src_in, srcW);
src = formatConvBuffer;
Merge remote branch 'qatar/master' * qatar/master: (33 commits) rtpdec_qdm2: Don't try to parse data packet if no configuration is received ac3enc: put the counting of stereo rematrixing bits in the same place to make the code easier to understand. ac3enc: clean up count_frame_bits() and count_frame_bits_fixed() mpegvideo: make FF_DEBUG_DCT_COEFF output coeffs via av_log() instead of just via AVFrame. srtdec: make sure we don't write past the end of buffer wmaenc: improve channel count and bitrate error handling in encode_init() matroskaenc: make sure we don't produce invalid file with no codec ID matroskadec: check that pointers were initialized before accessing them lavf: fix function name in compute_pkt_fields2 av_dlog message lavf: fix av_find_best_stream when providing a wanted stream. lavf: fix av_find_best_stream when decoder_ret is given and using a related stream. ffmpeg: factorize quality calculation tiff: add support for SamplesPerPixel tag in tiff_decode_tag() tiff: Prefer enum TiffCompr over int for TiffContext.compr. mov: Support edit list atom version 1. configure: Enable libpostproc automatically if GPL code is enabled. Cosmetics: fix prototypes in oggdec oggdec: fix memleak with continuous streams. matroskaenc: add missing new line in av_log() call dnxhdenc: add AVClass in private context. ... swscale changes largely rewritten by me or replaced by baptsites due to lots of bugs in ronalds code. Above code is also just in case its not obvios to a large extended duplicates that where cherry picked from ffmpeg. Conflicts: configure ffmpeg.c libavformat/matroskaenc.c libavutil/pixfmt.h libswscale/ppc/swscale_template.c libswscale/swscale.c libswscale/swscale_template.c libswscale/utils.c libswscale/x86/swscale_template.c tests/fate/h264.mak tests/ref/lavfi/pixdesc_le tests/ref/lavfi/pixfmts_copy_le tests/ref/lavfi/pixfmts_null_le tests/ref/lavfi/pixfmts_scale_le tests/ref/lavfi/pixfmts_vflip_le Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-05-13 04:40:40 +02:00
}
if (!c->hyscale_fast) {
c->hyScale(c, dst, dstWidth, src, hLumFilter,
hLumFilterPos, hLumFilterSize);
} else { // fast bilinear upscale / crap downscale
c->hyscale_fast(c, dst, dstWidth, src, srcW, xInc);
}
if (convertRange)
convertRange(dst, dstWidth);
}
static void hcscale_fast_c(SwsContext *c, int16_t *dst1, int16_t *dst2,
int dstWidth, const uint8_t *src1,
const uint8_t *src2, int srcW, int xInc)
{
int i;
unsigned int xpos = 0;
for (i = 0; i < dstWidth; i++) {
register unsigned int xx = xpos >> 16;
register unsigned int xalpha = (xpos & 0xFFFF) >> 9;
dst1[i] = (src1[xx] * (xalpha ^ 127) + src1[xx + 1] * xalpha);
dst2[i] = (src2[xx] * (xalpha ^ 127) + src2[xx + 1] * xalpha);
xpos += xInc;
}
for (i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--) {
dst1[i] = src1[srcW-1]*128;
dst2[i] = src2[srcW-1]*128;
}
}
static av_always_inline void hcscale(SwsContext *c, int16_t *dst1,
int16_t *dst2, int dstWidth,
const uint8_t *src_in[4],
int srcW, int xInc,
const int16_t *hChrFilter,
const int32_t *hChrFilterPos,
int hChrFilterSize,
uint8_t *formatConvBuffer, uint32_t *pal)
{
const uint8_t *src1 = src_in[1], *src2 = src_in[2];
if (c->chrToYV12) {
uint8_t *buf2 = formatConvBuffer +
FFALIGN(srcW*2+78, 16);
c->chrToYV12(formatConvBuffer, buf2, src_in[0], src1, src2, srcW, pal);
src1= formatConvBuffer;
src2= buf2;
} else if (c->readChrPlanar) {
uint8_t *buf2 = formatConvBuffer +
FFALIGN(srcW*2+78, 16);
c->readChrPlanar(formatConvBuffer, buf2, src_in, srcW);
src1 = formatConvBuffer;
src2 = buf2;
}
if (!c->hcscale_fast) {
c->hcScale(c, dst1, dstWidth, src1, hChrFilter, hChrFilterPos, hChrFilterSize);
c->hcScale(c, dst2, dstWidth, src2, hChrFilter, hChrFilterPos, hChrFilterSize);
} else { // fast bilinear upscale / crap downscale
c->hcscale_fast(c, dst1, dst2, dstWidth, src1, src2, srcW, xInc);
}
if (c->chrConvertRange)
c->chrConvertRange(dst1, dst2, dstWidth);
}
#define DEBUG_SWSCALE_BUFFERS 0
#define DEBUG_BUFFERS(...) \
if (DEBUG_SWSCALE_BUFFERS) \
av_log(c, AV_LOG_DEBUG, __VA_ARGS__)
static int swScale(SwsContext *c, const uint8_t *src[],
int srcStride[], int srcSliceY,
int srcSliceH, uint8_t *dst[], int dstStride[])
{
/* load a few things into local vars to make the code more readable?
* and faster */
const int srcW = c->srcW;
const int dstW = c->dstW;
const int dstH = c->dstH;
const int chrDstW = c->chrDstW;
const int chrSrcW = c->chrSrcW;
const int lumXInc = c->lumXInc;
const int chrXInc = c->chrXInc;
const enum PixelFormat dstFormat = c->dstFormat;
const int flags = c->flags;
int32_t *vLumFilterPos = c->vLumFilterPos;
int32_t *vChrFilterPos = c->vChrFilterPos;
int32_t *hLumFilterPos = c->hLumFilterPos;
int32_t *hChrFilterPos = c->hChrFilterPos;
int16_t *vLumFilter = c->vLumFilter;
int16_t *vChrFilter = c->vChrFilter;
int16_t *hLumFilter = c->hLumFilter;
int16_t *hChrFilter = c->hChrFilter;
int32_t *lumMmxFilter = c->lumMmxFilter;
int32_t *chrMmxFilter = c->chrMmxFilter;
const int vLumFilterSize = c->vLumFilterSize;
const int vChrFilterSize = c->vChrFilterSize;
const int hLumFilterSize = c->hLumFilterSize;
const int hChrFilterSize = c->hChrFilterSize;
int16_t **lumPixBuf = c->lumPixBuf;
int16_t **chrUPixBuf = c->chrUPixBuf;
int16_t **chrVPixBuf = c->chrVPixBuf;
int16_t **alpPixBuf = c->alpPixBuf;
const int vLumBufSize = c->vLumBufSize;
const int vChrBufSize = c->vChrBufSize;
uint8_t *formatConvBuffer = c->formatConvBuffer;
uint32_t *pal = c->pal_yuv;
yuv2planar1_fn yuv2plane1 = c->yuv2plane1;
yuv2planarX_fn yuv2planeX = c->yuv2planeX;
yuv2interleavedX_fn yuv2nv12cX = c->yuv2nv12cX;
yuv2packed1_fn yuv2packed1 = c->yuv2packed1;
yuv2packed2_fn yuv2packed2 = c->yuv2packed2;
yuv2packedX_fn yuv2packedX = c->yuv2packedX;
const int chrSrcSliceY = srcSliceY >> c->chrSrcVSubSample;
const int chrSrcSliceH = -((-srcSliceH) >> c->chrSrcVSubSample);
int should_dither = is9_OR_10BPS(c->srcFormat) ||
is16BPS(c->srcFormat);
int lastDstY;
/* vars which will change and which we need to store back in the context */
int dstY = c->dstY;
int lumBufIndex = c->lumBufIndex;
int chrBufIndex = c->chrBufIndex;
int lastInLumBuf = c->lastInLumBuf;
int lastInChrBuf = c->lastInChrBuf;
if (isPacked(c->srcFormat)) {
src[0] =
src[1] =
src[2] =
src[3] = src[0];
srcStride[0] =
srcStride[1] =
srcStride[2] =
srcStride[3] = srcStride[0];
}
srcStride[1] <<= c->vChrDrop;
srcStride[2] <<= c->vChrDrop;
DEBUG_BUFFERS("swScale() %p[%d] %p[%d] %p[%d] %p[%d] -> %p[%d] %p[%d] %p[%d] %p[%d]\n",
src[0], srcStride[0], src[1], srcStride[1],
src[2], srcStride[2], src[3], srcStride[3],
dst[0], dstStride[0], dst[1], dstStride[1],
dst[2], dstStride[2], dst[3], dstStride[3]);
DEBUG_BUFFERS("srcSliceY: %d srcSliceH: %d dstY: %d dstH: %d\n",
srcSliceY, srcSliceH, dstY, dstH);
DEBUG_BUFFERS("vLumFilterSize: %d vLumBufSize: %d vChrFilterSize: %d vChrBufSize: %d\n",
vLumFilterSize, vLumBufSize, vChrFilterSize, vChrBufSize);
if (dstStride[0]%16 !=0 || dstStride[1]%16 !=0 ||
dstStride[2]%16 !=0 || dstStride[3]%16 != 0) {
static int warnedAlready = 0; // FIXME maybe move this into the context
if (flags & SWS_PRINT_INFO && !warnedAlready) {
av_log(c, AV_LOG_WARNING,
"Warning: dstStride is not aligned!\n"
" ->cannot do aligned memory accesses anymore\n");
warnedAlready = 1;
}
}
if ((int)dst[0]%16 || (int)dst[1]%16 || (int)dst[2]%16 || (int)src[0]%16 || (int)src[1]%16 || (int)src[2]%16
|| dstStride[0]%16 || dstStride[1]%16 || dstStride[2]%16 || dstStride[3]%16
|| srcStride[0]%16 || srcStride[1]%16 || srcStride[2]%16 || srcStride[3]%16
) {
static int warnedAlready=0;
int cpu_flags = av_get_cpu_flags();
if (HAVE_MMX2 && (cpu_flags & AV_CPU_FLAG_SSE2) && !warnedAlready){
av_log(c, AV_LOG_WARNING, "Warning: data is not aligned! This can lead to a speedloss\n");
warnedAlready=1;
}
}
/* Note the user might start scaling the picture in the middle so this
* will not get executed. This is not really intended but works
* currently, so people might do it. */
if (srcSliceY == 0) {
lumBufIndex = -1;
chrBufIndex = -1;
dstY = 0;
lastInLumBuf = -1;
lastInChrBuf = -1;
}
if (!should_dither) {
c->chrDither8 = c->lumDither8 = ff_sws_pb_64;
}
lastDstY = dstY;
for (; dstY < dstH; dstY++) {
const int chrDstY = dstY >> c->chrDstVSubSample;
uint8_t *dest[4] = {
dst[0] + dstStride[0] * dstY,
dst[1] + dstStride[1] * chrDstY,
dst[2] + dstStride[2] * chrDstY,
(CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3] + dstStride[3] * dstY : NULL,
};
int use_mmx_vfilter= c->use_mmx_vfilter;
// First line needed as input
const int firstLumSrcY = FFMAX(1 - vLumFilterSize, vLumFilterPos[dstY]);
const int firstLumSrcY2 = FFMAX(1 - vLumFilterSize, vLumFilterPos[FFMIN(dstY | ((1 << c->chrDstVSubSample) - 1), dstH - 1)]);
// First line needed as input
const int firstChrSrcY = FFMAX(1 - vChrFilterSize, vChrFilterPos[chrDstY]);
// Last line needed as input
int lastLumSrcY = FFMIN(c->srcH, firstLumSrcY + vLumFilterSize) - 1;
int lastLumSrcY2 = FFMIN(c->srcH, firstLumSrcY2 + vLumFilterSize) - 1;
int lastChrSrcY = FFMIN(c->chrSrcH, firstChrSrcY + vChrFilterSize) - 1;
int enough_lines;
// handle holes (FAST_BILINEAR & weird filters)
if (firstLumSrcY > lastInLumBuf)
lastInLumBuf = firstLumSrcY - 1;
if (firstChrSrcY > lastInChrBuf)
lastInChrBuf = firstChrSrcY - 1;
assert(firstLumSrcY >= lastInLumBuf - vLumBufSize + 1);
assert(firstChrSrcY >= lastInChrBuf - vChrBufSize + 1);
DEBUG_BUFFERS("dstY: %d\n", dstY);
DEBUG_BUFFERS("\tfirstLumSrcY: %d lastLumSrcY: %d lastInLumBuf: %d\n",
firstLumSrcY, lastLumSrcY, lastInLumBuf);
DEBUG_BUFFERS("\tfirstChrSrcY: %d lastChrSrcY: %d lastInChrBuf: %d\n",
firstChrSrcY, lastChrSrcY, lastInChrBuf);
// Do we have enough lines in this slice to output the dstY line
enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH &&
lastChrSrcY < -((-srcSliceY - srcSliceH) >> c->chrSrcVSubSample);
if (!enough_lines) {
lastLumSrcY = srcSliceY + srcSliceH - 1;
lastChrSrcY = chrSrcSliceY + chrSrcSliceH - 1;
DEBUG_BUFFERS("buffering slice: lastLumSrcY %d lastChrSrcY %d\n",
lastLumSrcY, lastChrSrcY);
}
// Do horizontal scaling
while (lastInLumBuf < lastLumSrcY) {
const uint8_t *src1[4] = {
src[0] + (lastInLumBuf + 1 - srcSliceY) * srcStride[0],
src[1] + (lastInLumBuf + 1 - srcSliceY) * srcStride[1],
src[2] + (lastInLumBuf + 1 - srcSliceY) * srcStride[2],
src[3] + (lastInLumBuf + 1 - srcSliceY) * srcStride[3],
};
lumBufIndex++;
assert(lumBufIndex < 2 * vLumBufSize);
assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);
assert(lastInLumBuf + 1 - srcSliceY >= 0);
hyscale(c, lumPixBuf[lumBufIndex], dstW, src1, srcW, lumXInc,
hLumFilter, hLumFilterPos, hLumFilterSize,
formatConvBuffer, pal, 0);
if (CONFIG_SWSCALE_ALPHA && alpPixBuf)
hyscale(c, alpPixBuf[lumBufIndex], dstW, src1, srcW,
lumXInc, hLumFilter, hLumFilterPos, hLumFilterSize,
formatConvBuffer, pal, 1);
lastInLumBuf++;
DEBUG_BUFFERS("\t\tlumBufIndex %d: lastInLumBuf: %d\n",
lumBufIndex, lastInLumBuf);
}
while (lastInChrBuf < lastChrSrcY) {
const uint8_t *src1[4] = {
src[0] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[0],
src[1] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[1],
src[2] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[2],
src[3] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[3],
};
chrBufIndex++;
assert(chrBufIndex < 2 * vChrBufSize);
assert(lastInChrBuf + 1 - chrSrcSliceY < (chrSrcSliceH));
assert(lastInChrBuf + 1 - chrSrcSliceY >= 0);
// FIXME replace parameters through context struct (some at least)
if (c->needs_hcscale)
hcscale(c, chrUPixBuf[chrBufIndex], chrVPixBuf[chrBufIndex],
chrDstW, src1, chrSrcW, chrXInc,
hChrFilter, hChrFilterPos, hChrFilterSize,
formatConvBuffer, pal);
lastInChrBuf++;
DEBUG_BUFFERS("\t\tchrBufIndex %d: lastInChrBuf: %d\n",
chrBufIndex, lastInChrBuf);
}
// wrap buf index around to stay inside the ring buffer
if (lumBufIndex >= vLumBufSize)
lumBufIndex -= vLumBufSize;
if (chrBufIndex >= vChrBufSize)
chrBufIndex -= vChrBufSize;
if (!enough_lines)
break; // we can't output a dstY line so let's try with the next slice
#if HAVE_MMX
updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex,
lastInLumBuf, lastInChrBuf);
#endif
if (should_dither) {
c->chrDither8 = dither_8x8_128[chrDstY & 7];
c->lumDither8 = dither_8x8_128[dstY & 7];
}
if (dstY >= dstH - 2) {
/* hmm looks like we can't use MMX here without overwriting
* this array's tail */
ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX,
&yuv2packed1, &yuv2packed2, &yuv2packedX);
use_mmx_vfilter= 0;
}
{
const int16_t **lumSrcPtr = (const int16_t **)(void*) lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
const int16_t **chrUSrcPtr = (const int16_t **)(void*) chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
const int16_t **chrVSrcPtr = (const int16_t **)(void*) chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
const int16_t **alpSrcPtr = (CONFIG_SWSCALE_ALPHA && alpPixBuf) ?
(const int16_t **)(void*) alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;
int16_t *vLumFilter = c->vLumFilter;
int16_t *vChrFilter = c->vChrFilter;
if (isPlanarYUV(dstFormat) ||
(isGray(dstFormat) && !isALPHA(dstFormat))) { // YV12 like
const int chrSkipMask = (1 << c->chrDstVSubSample) - 1;
vLumFilter += dstY * vLumFilterSize;
vChrFilter += chrDstY * vChrFilterSize;
Merge remote-tracking branch 'qatar/master' * qatar/master: swscale: make yuv2yuv1 use named registers. h264: mark h264_idct_add8_10 with number of XMM registers. swscale: fix V plane memory location in bilinear/unscaled RGB/YUYV case. vp8: always update next_framep[] before returning from decode_frame(). avconv: estimate next_dts from framerate if it is set. avconv: better next_dts usage. avconv: rename InputStream.pts to last_dts. avconv: reduce overloading for InputStream.pts. avconv: rename InputStream.next_pts to next_dts. avconv: rework -t handling for encoding. avconv: set encoder timebase for subtitles. pva-demux test: add -vn swscale: K&R formatting cosmetics for SPARC code apedec: allow the user to set the maximum number of output samples per call apedec: do not unnecessarily zero output samples for mono frames apedec: allocate a single flat buffer for decoded samples apedec: use sizeof(field) instead of sizeof(type) swscale: split C output functions into separate file. swscale: Split C input functions into separate file. bytestream: Add bytestream2 writing API. The avconv changes are due to massive regressions and bugs not merged yet. Conflicts: ffmpeg.c libavcodec/vp8.c libswscale/swscale.c libswscale/x86/swscale_template.c tests/fate/demux.mak tests/ref/lavf/asf tests/ref/lavf/avi tests/ref/lavf/mkv tests/ref/lavf/mpg tests/ref/lavf/nut tests/ref/lavf/ogg tests/ref/lavf/rm tests/ref/lavf/ts tests/ref/seek/lavf_avi tests/ref/seek/lavf_mkv tests/ref/seek/lavf_rm Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-08 02:59:09 +01:00
// av_assert0(use_mmx_vfilter != (
// yuv2planeX == yuv2planeX_10BE_c
// || yuv2planeX == yuv2planeX_10LE_c
// || yuv2planeX == yuv2planeX_9BE_c
// || yuv2planeX == yuv2planeX_9LE_c
// || yuv2planeX == yuv2planeX_16BE_c
// || yuv2planeX == yuv2planeX_16LE_c
// || yuv2planeX == yuv2planeX_8_c) || !ARCH_X86);
if(use_mmx_vfilter){
vLumFilter= c->lumMmxFilter;
vChrFilter= c->chrMmxFilter;
}
if (vLumFilterSize == 1) {
yuv2plane1(lumSrcPtr[0], dest[0], dstW, c->lumDither8, 0);
} else {
yuv2planeX(vLumFilter, vLumFilterSize,
lumSrcPtr, dest[0],
dstW, c->lumDither8, 0);
}
if (!((dstY & chrSkipMask) || isGray(dstFormat))) {
if (yuv2nv12cX) {
yuv2nv12cX(c, vChrFilter,
vChrFilterSize, chrUSrcPtr, chrVSrcPtr,
dest[1], chrDstW);
} else if (vChrFilterSize == 1) {
yuv2plane1(chrUSrcPtr[0], dest[1], chrDstW, c->chrDither8, 0);
yuv2plane1(chrVSrcPtr[0], dest[2], chrDstW, c->chrDither8, 3);
} else {
yuv2planeX(vChrFilter,
vChrFilterSize, chrUSrcPtr, dest[1],
chrDstW, c->chrDither8, 0);
yuv2planeX(vChrFilter,
vChrFilterSize, chrVSrcPtr, dest[2],
chrDstW, c->chrDither8, use_mmx_vfilter ? (c->uv_offx2 >> 1) : 3);
}
}
if (CONFIG_SWSCALE_ALPHA && alpPixBuf) {
if(use_mmx_vfilter){
vLumFilter= c->alpMmxFilter;
}
if (vLumFilterSize == 1) {
yuv2plane1(alpSrcPtr[0], dest[3], dstW,
c->lumDither8, 0);
} else {
yuv2planeX(vLumFilter,
vLumFilterSize, alpSrcPtr, dest[3],
dstW, c->lumDither8, 0);
}
}
} else {
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize * 2);
assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize * 2);
if (c->yuv2packed1 && vLumFilterSize == 1 &&
vChrFilterSize <= 2) { // unscaled RGB
int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 * dstY + 1];
yuv2packed1(c, *lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
alpPixBuf ? *alpSrcPtr : NULL,
dest[0], dstW, chrAlpha, dstY);
} else if (c->yuv2packed2 && vLumFilterSize == 2 &&
vChrFilterSize == 2) { // bilinear upscale RGB
int lumAlpha = vLumFilter[2 * dstY + 1];
int chrAlpha = vChrFilter[2 * dstY + 1];
lumMmxFilter[2] =
lumMmxFilter[3] = vLumFilter[2 * dstY] * 0x10001;
chrMmxFilter[2] =
chrMmxFilter[3] = vChrFilter[2 * chrDstY] * 0x10001;
yuv2packed2(c, lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
alpPixBuf ? alpSrcPtr : NULL,
dest[0], dstW, lumAlpha, chrAlpha, dstY);
} else { // general RGB
yuv2packedX(c, vLumFilter + dstY * vLumFilterSize,
lumSrcPtr, vLumFilterSize,
vChrFilter + dstY * vChrFilterSize,
chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest[0], dstW, dstY);
}
}
}
}
if (isPlanar(dstFormat) && isALPHA(dstFormat) && !alpPixBuf)
fillPlane(dst[3], dstStride[3], dstW, dstY - lastDstY, lastDstY, 255);
#if HAVE_MMX2
if (av_get_cpu_flags() & AV_CPU_FLAG_MMX2)
__asm__ volatile ("sfence" ::: "memory");
#endif
emms_c();
/* store changed local vars back in the context */
c->dstY = dstY;
c->lumBufIndex = lumBufIndex;
c->chrBufIndex = chrBufIndex;
c->lastInLumBuf = lastInLumBuf;
c->lastInChrBuf = lastInChrBuf;
return dstY - lastDstY;
}
static av_cold void sws_init_swScale_c(SwsContext *c)
{
enum PixelFormat srcFormat = c->srcFormat;
ff_sws_init_output_funcs(c, &c->yuv2plane1, &c->yuv2planeX,
&c->yuv2nv12cX, &c->yuv2packed1,
&c->yuv2packed2, &c->yuv2packedX);
ff_sws_init_input_funcs(c);
if (c->srcBpc == 8) {
if (c->dstBpc <= 10) {
c->hyScale = c->hcScale = hScale8To15_c;
if (c->flags & SWS_FAST_BILINEAR) {
c->hyscale_fast = hyscale_fast_c;
c->hcscale_fast = hcscale_fast_c;
}
} else {
c->hyScale = c->hcScale = hScale8To19_c;
}
} else {
c->hyScale = c->hcScale = c->dstBpc > 10 ? hScale16To19_c
: hScale16To15_c;
}
if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat)) {
if (c->dstBpc <= 10) {
if (c->srcRange) {
c->lumConvertRange = lumRangeFromJpeg_c;
c->chrConvertRange = chrRangeFromJpeg_c;
} else {
c->lumConvertRange = lumRangeToJpeg_c;
c->chrConvertRange = chrRangeToJpeg_c;
}
} else {
if (c->srcRange) {
c->lumConvertRange = lumRangeFromJpeg16_c;
c->chrConvertRange = chrRangeFromJpeg16_c;
} else {
c->lumConvertRange = lumRangeToJpeg16_c;
c->chrConvertRange = chrRangeToJpeg16_c;
}
}
}
if (!(isGray(srcFormat) || isGray(c->dstFormat) ||
srcFormat == PIX_FMT_MONOBLACK || srcFormat == PIX_FMT_MONOWHITE))
c->needs_hcscale = 1;
}
SwsFunc ff_getSwsFunc(SwsContext *c)
{
sws_init_swScale_c(c);
if (HAVE_MMX)
ff_sws_init_swScale_mmx(c);
if (HAVE_ALTIVEC)
ff_sws_init_swScale_altivec(c);
return swScale;
}