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-rw-r--r--libswscale/swscale_internal.h421
1 files changed, 357 insertions, 64 deletions
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index 4d921cde47..3f72f9873a 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -1,20 +1,20 @@
/*
- * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -27,18 +27,24 @@
#include <altivec.h>
#endif
+#include "version.h"
+
#include "libavutil/avassert.h"
#include "libavutil/avutil.h"
#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
#include "libavutil/pixfmt.h"
#include "libavutil/pixdesc.h"
#define STR(s) AV_TOSTRING(s) // AV_STRINGIFY is too long
-#define FAST_BGR2YV12 // use 7-bit instead of 15-bit coefficients
+#define YUVRGB_TABLE_HEADROOM 512
+#define YUVRGB_TABLE_LUMA_HEADROOM 512
+
+#define MAX_FILTER_SIZE SWS_MAX_FILTER_SIZE
-#define MAX_FILTER_SIZE 256
+#define DITHER1XBPP
#if HAVE_BIGENDIAN
#define ALT32_CORR (-1)
@@ -56,8 +62,27 @@
# define APCK_SIZE 16
#endif
+#define RETCODE_USE_CASCADE -12345
+
struct SwsContext;
+typedef enum SwsDither {
+ SWS_DITHER_NONE = 0,
+ SWS_DITHER_AUTO,
+ SWS_DITHER_BAYER,
+ SWS_DITHER_ED,
+ SWS_DITHER_A_DITHER,
+ SWS_DITHER_X_DITHER,
+ NB_SWS_DITHER,
+} SwsDither;
+
+typedef enum SwsAlphaBlend {
+ SWS_ALPHA_BLEND_NONE = 0,
+ SWS_ALPHA_BLEND_UNIFORM,
+ SWS_ALPHA_BLEND_CHECKERBOARD,
+ SWS_ALPHA_BLEND_NB,
+} SwsAlphaBlend;
+
typedef int (*SwsFunc)(struct SwsContext *context, const uint8_t *src[],
int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[]);
@@ -252,6 +277,9 @@ typedef void (*yuv2anyX_fn)(struct SwsContext *c, const int16_t *lumFilter,
const int16_t **alpSrc, uint8_t **dest,
int dstW, int y);
+struct SwsSlice;
+struct SwsFilterDescriptor;
+
/* This struct should be aligned on at least a 32-byte boundary. */
typedef struct SwsContext {
/**
@@ -286,6 +314,29 @@ typedef struct SwsContext {
int sliceDir; ///< Direction that slices are fed to the scaler (1 = top-to-bottom, -1 = bottom-to-top).
double param[2]; ///< Input parameters for scaling algorithms that need them.
+ /* The cascaded_* fields allow spliting a scaler task into multiple
+ * sequential steps, this is for example used to limit the maximum
+ * downscaling factor that needs to be supported in one scaler.
+ */
+ struct SwsContext *cascaded_context[3];
+ int cascaded_tmpStride[4];
+ uint8_t *cascaded_tmp[4];
+ int cascaded1_tmpStride[4];
+ uint8_t *cascaded1_tmp[4];
+ int cascaded_mainindex;
+
+ double gamma_value;
+ int gamma_flag;
+ int is_internal_gamma;
+ uint16_t *gamma;
+ uint16_t *inv_gamma;
+
+ int numDesc;
+ int descIndex[2];
+ int numSlice;
+ struct SwsSlice *slice;
+ struct SwsFilterDescriptor *desc;
+
uint32_t pal_yuv[256];
uint32_t pal_rgb[256];
@@ -299,12 +350,6 @@ typedef struct SwsContext {
* vertical scaler is called.
*/
//@{
- int16_t **lumPixBuf; ///< Ring buffer for scaled horizontal luma plane lines to be fed to the vertical scaler.
- int16_t **chrUPixBuf; ///< Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler.
- int16_t **chrVPixBuf; ///< Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler.
- int16_t **alpPixBuf; ///< Ring buffer for scaled horizontal alpha plane lines to be fed to the vertical scaler.
- int vLumBufSize; ///< Number of vertical luma/alpha lines allocated in the ring buffer.
- int vChrBufSize; ///< Number of vertical chroma lines allocated in the ring buffer.
int lastInLumBuf; ///< Last scaled horizontal luma/alpha line from source in the ring buffer.
int lastInChrBuf; ///< Last scaled horizontal chroma line from source in the ring buffer.
int lumBufIndex; ///< Index in ring buffer of the last scaled horizontal luma/alpha line from source.
@@ -312,6 +357,7 @@ typedef struct SwsContext {
//@}
uint8_t *formatConvBuffer;
+ int needAlpha;
/**
* @name Horizontal and vertical filters.
@@ -347,14 +393,30 @@ typedef struct SwsContext {
uint8_t *chrMmxextFilterCode; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code for chroma planes.
int canMMXEXTBeUsed;
+ int warned_unuseable_bilinear;
int dstY; ///< Last destination vertical line output from last slice.
int flags; ///< Flags passed by the user to select scaler algorithm, optimizations, subsampling, etc...
void *yuvTable; // pointer to the yuv->rgb table start so it can be freed()
- uint8_t *table_rV[256];
- uint8_t *table_gU[256];
- int table_gV[256];
- uint8_t *table_bU[256];
+ // alignment ensures the offset can be added in a single
+ // instruction on e.g. ARM
+ DECLARE_ALIGNED(16, int, table_gV)[256 + 2*YUVRGB_TABLE_HEADROOM];
+ uint8_t *table_rV[256 + 2*YUVRGB_TABLE_HEADROOM];
+ uint8_t *table_gU[256 + 2*YUVRGB_TABLE_HEADROOM];
+ uint8_t *table_bU[256 + 2*YUVRGB_TABLE_HEADROOM];
+ DECLARE_ALIGNED(16, int32_t, input_rgb2yuv_table)[16+40*4]; // This table can contain both C and SIMD formatted values, the C vales are always at the XY_IDX points
+#define RY_IDX 0
+#define GY_IDX 1
+#define BY_IDX 2
+#define RU_IDX 3
+#define GU_IDX 4
+#define BU_IDX 5
+#define RV_IDX 6
+#define GV_IDX 7
+#define BV_IDX 8
+#define RGB2YUV_SHIFT 15
+
+ int *dither_error[4];
//Colorspace stuff
int contrast, brightness, saturation; // for sws_getColorspaceDetails
@@ -362,6 +424,14 @@ typedef struct SwsContext {
int dstColorspaceTable[4];
int srcRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (source image).
int dstRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (destination image).
+ int src0Alpha;
+ int dst0Alpha;
+ int srcXYZ;
+ int dstXYZ;
+ int src_h_chr_pos;
+ int dst_h_chr_pos;
+ int src_v_chr_pos;
+ int dst_v_chr_pos;
int yuv2rgb_y_offset;
int yuv2rgb_y_coeff;
int yuv2rgb_v2r_coeff;
@@ -381,18 +451,19 @@ typedef struct SwsContext {
#define U_OFFSET "9*8"
#define V_OFFSET "10*8"
#define LUM_MMX_FILTER_OFFSET "11*8"
-#define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
-#define DSTW_OFFSET "11*8+4*4*256*2" //do not change, it is hardcoded in the ASM
-#define ESP_OFFSET "11*8+4*4*256*2+8"
-#define VROUNDER_OFFSET "11*8+4*4*256*2+16"
-#define U_TEMP "11*8+4*4*256*2+24"
-#define V_TEMP "11*8+4*4*256*2+32"
-#define Y_TEMP "11*8+4*4*256*2+40"
-#define ALP_MMX_FILTER_OFFSET "11*8+4*4*256*2+48"
-#define UV_OFF_PX "11*8+4*4*256*3+48"
-#define UV_OFF_BYTE "11*8+4*4*256*3+56"
-#define DITHER16 "11*8+4*4*256*3+64"
-#define DITHER32 "11*8+4*4*256*3+80"
+#define CHR_MMX_FILTER_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)
+#define DSTW_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2"
+#define ESP_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+8"
+#define VROUNDER_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+16"
+#define U_TEMP "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+24"
+#define V_TEMP "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+32"
+#define Y_TEMP "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+40"
+#define ALP_MMX_FILTER_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+48"
+#define UV_OFF_PX "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+48"
+#define UV_OFF_BYTE "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+56"
+#define DITHER16 "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+64"
+#define DITHER32 "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+80"
+#define DITHER32_INT (11*8+4*4*MAX_FILTER_SIZE*3+80) // value equal to above, used for checking that the struct hasn't been changed by mistake
DECLARE_ALIGNED(8, uint64_t, redDither);
DECLARE_ALIGNED(8, uint64_t, greenDither);
@@ -418,8 +489,8 @@ typedef struct SwsContext {
// alignment of these values is not necessary, but merely here
// to maintain the same offset across x8632 and x86-64. Once we
// use proper offset macros in the asm, they can be removed.
- DECLARE_ALIGNED(8, ptrdiff_t, uv_off_px); ///< offset (in pixels) between u and v planes
- DECLARE_ALIGNED(8, ptrdiff_t, uv_off_byte); ///< offset (in bytes) between u and v planes
+ DECLARE_ALIGNED(8, ptrdiff_t, uv_off); ///< offset (in pixels) between u and v planes
+ DECLARE_ALIGNED(8, ptrdiff_t, uv_offx2); ///< offset (in bytes) between u and v planes
DECLARE_ALIGNED(8, uint16_t, dither16)[8];
DECLARE_ALIGNED(8, uint32_t, dither32)[8];
@@ -436,6 +507,18 @@ typedef struct SwsContext {
vector signed short *vYCoeffsBank, *vCCoeffsBank;
#endif
+ int use_mmx_vfilter;
+
+/* pre defined color-spaces gamma */
+#define XYZ_GAMMA (2.6f)
+#define RGB_GAMMA (2.2f)
+ int16_t *xyzgamma;
+ int16_t *rgbgamma;
+ int16_t *xyzgammainv;
+ int16_t *rgbgammainv;
+ int16_t xyz2rgb_matrix[3][4];
+ int16_t rgb2xyz_matrix[3][4];
+
/* function pointers for swscale() */
yuv2planar1_fn yuv2plane1;
yuv2planarX_fn yuv2planeX;
@@ -446,14 +529,14 @@ typedef struct SwsContext {
yuv2anyX_fn yuv2anyX;
/// Unscaled conversion of luma plane to YV12 for horizontal scaler.
- void (*lumToYV12)(uint8_t *dst, const uint8_t *src,
+ void (*lumToYV12)(uint8_t *dst, const uint8_t *src, const uint8_t *src2, const uint8_t *src3,
int width, uint32_t *pal);
/// Unscaled conversion of alpha plane to YV12 for horizontal scaler.
- void (*alpToYV12)(uint8_t *dst, const uint8_t *src,
+ void (*alpToYV12)(uint8_t *dst, const uint8_t *src, const uint8_t *src2, const uint8_t *src3,
int width, uint32_t *pal);
/// Unscaled conversion of chroma planes to YV12 for horizontal scaler.
void (*chrToYV12)(uint8_t *dstU, uint8_t *dstV,
- const uint8_t *src1, const uint8_t *src2,
+ const uint8_t *src1, const uint8_t *src2, const uint8_t *src3,
int width, uint32_t *pal);
/**
@@ -461,10 +544,10 @@ typedef struct SwsContext {
* internally to Y/UV/A.
*/
/** @{ */
- void (*readLumPlanar)(uint8_t *dst, const uint8_t *src[4], int width);
+ void (*readLumPlanar)(uint8_t *dst, const uint8_t *src[4], int width, int32_t *rgb2yuv);
void (*readChrPlanar)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src[4],
- int width);
- void (*readAlpPlanar)(uint8_t *dst, const uint8_t *src[4], int width);
+ int width, int32_t *rgb2yuv);
+ void (*readAlpPlanar)(uint8_t *dst, const uint8_t *src[4], int width, int32_t *rgb2yuv);
/** @} */
/**
@@ -540,6 +623,10 @@ typedef struct SwsContext {
void (*chrConvertRange)(int16_t *dst1, int16_t *dst2, int width);
int needs_hcscale; ///< Set if there are chroma planes to be converted.
+
+ SwsDither dither;
+
+ SwsAlphaBlend alphablend;
} SwsContext;
//FIXME check init (where 0)
@@ -550,14 +637,14 @@ int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
void ff_yuv2rgb_init_tables_ppc(SwsContext *c, const int inv_table[4],
int brightness, int contrast, int saturation);
-void updateMMXDitherTables(SwsContext *c, int dstY, int lumBufIndex, int chrBufIndex,
+void ff_updateMMXDitherTables(SwsContext *c, int dstY, int lumBufIndex, int chrBufIndex,
int lastInLumBuf, int lastInChrBuf);
+av_cold void ff_sws_init_range_convert(SwsContext *c);
+
SwsFunc ff_yuv2rgb_init_x86(SwsContext *c);
SwsFunc ff_yuv2rgb_init_ppc(SwsContext *c);
-const char *sws_format_name(enum AVPixelFormat format);
-
static av_always_inline int is16BPS(enum AVPixelFormat pix_fmt)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
@@ -569,9 +656,11 @@ static av_always_inline int is9_OR_10BPS(enum AVPixelFormat pix_fmt)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
av_assert0(desc);
- return desc->comp[0].depth == 9 || desc->comp[0].depth == 10;
+ return desc->comp[0].depth >= 9 && desc->comp[0].depth <= 14;
}
+#define isNBPS(x) is9_OR_10BPS(x)
+
static av_always_inline int isBE(enum AVPixelFormat pix_fmt)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
@@ -602,8 +691,8 @@ static av_always_inline int isRGB(enum AVPixelFormat pix_fmt)
#if 0 // FIXME
#define isGray(x) \
- (!(av_pix_fmt_descriptors[x].flags & AV_PIX_FMT_FLAG_PAL) && \
- av_pix_fmt_descriptors[x].nb_components <= 2)
+ (!(av_pix_fmt_desc_get(x)->flags & AV_PIX_FMT_FLAG_PAL) && \
+ av_pix_fmt_desc_get(x)->nb_components <= 2)
#else
#define isGray(x) \
((x) == AV_PIX_FMT_GRAY8 || \
@@ -614,8 +703,9 @@ static av_always_inline int isRGB(enum AVPixelFormat pix_fmt)
(x) == AV_PIX_FMT_YA16LE)
#endif
-#define isRGBinInt(x) \
- ((x) == AV_PIX_FMT_RGB48BE || \
+#define isRGBinInt(x) \
+ ( \
+ (x) == AV_PIX_FMT_RGB48BE || \
(x) == AV_PIX_FMT_RGB48LE || \
(x) == AV_PIX_FMT_RGB32 || \
(x) == AV_PIX_FMT_RGB32_1 || \
@@ -632,10 +722,11 @@ static av_always_inline int isRGB(enum AVPixelFormat pix_fmt)
(x) == AV_PIX_FMT_RGBA64BE || \
(x) == AV_PIX_FMT_RGBA64LE || \
(x) == AV_PIX_FMT_MONOBLACK || \
- (x) == AV_PIX_FMT_MONOWHITE)
-
-#define isBGRinInt(x) \
- ((x) == AV_PIX_FMT_BGR48BE || \
+ (x) == AV_PIX_FMT_MONOWHITE \
+ )
+#define isBGRinInt(x) \
+ ( \
+ (x) == AV_PIX_FMT_BGR48BE || \
(x) == AV_PIX_FMT_BGR48LE || \
(x) == AV_PIX_FMT_BGR32 || \
(x) == AV_PIX_FMT_BGR32_1 || \
@@ -652,19 +743,75 @@ static av_always_inline int isRGB(enum AVPixelFormat pix_fmt)
(x) == AV_PIX_FMT_BGRA64BE || \
(x) == AV_PIX_FMT_BGRA64LE || \
(x) == AV_PIX_FMT_MONOBLACK || \
- (x) == AV_PIX_FMT_MONOWHITE)
-
-#define isAnyRGB(x) \
- (isRGBinInt(x) || \
- isBGRinInt(x))
+ (x) == AV_PIX_FMT_MONOWHITE \
+ )
+
+#define isRGBinBytes(x) ( \
+ (x) == AV_PIX_FMT_RGB48BE \
+ || (x) == AV_PIX_FMT_RGB48LE \
+ || (x) == AV_PIX_FMT_RGBA64BE \
+ || (x) == AV_PIX_FMT_RGBA64LE \
+ || (x) == AV_PIX_FMT_RGBA \
+ || (x) == AV_PIX_FMT_ARGB \
+ || (x) == AV_PIX_FMT_RGB24 \
+ )
+#define isBGRinBytes(x) ( \
+ (x) == AV_PIX_FMT_BGR48BE \
+ || (x) == AV_PIX_FMT_BGR48LE \
+ || (x) == AV_PIX_FMT_BGRA64BE \
+ || (x) == AV_PIX_FMT_BGRA64LE \
+ || (x) == AV_PIX_FMT_BGRA \
+ || (x) == AV_PIX_FMT_ABGR \
+ || (x) == AV_PIX_FMT_BGR24 \
+ )
+
+#define isBayer(x) ( \
+ (x)==AV_PIX_FMT_BAYER_BGGR8 \
+ || (x)==AV_PIX_FMT_BAYER_BGGR16LE \
+ || (x)==AV_PIX_FMT_BAYER_BGGR16BE \
+ || (x)==AV_PIX_FMT_BAYER_RGGB8 \
+ || (x)==AV_PIX_FMT_BAYER_RGGB16LE \
+ || (x)==AV_PIX_FMT_BAYER_RGGB16BE \
+ || (x)==AV_PIX_FMT_BAYER_GBRG8 \
+ || (x)==AV_PIX_FMT_BAYER_GBRG16LE \
+ || (x)==AV_PIX_FMT_BAYER_GBRG16BE \
+ || (x)==AV_PIX_FMT_BAYER_GRBG8 \
+ || (x)==AV_PIX_FMT_BAYER_GRBG16LE \
+ || (x)==AV_PIX_FMT_BAYER_GRBG16BE \
+ )
+
+#define isAnyRGB(x) \
+ ( \
+ isBayer(x) || \
+ isRGBinInt(x) || \
+ isBGRinInt(x) || \
+ isRGB(x) \
+ )
static av_always_inline int isALPHA(enum AVPixelFormat pix_fmt)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
av_assert0(desc);
- return desc->nb_components == 2 || desc->nb_components == 4;
+ if (pix_fmt == AV_PIX_FMT_PAL8)
+ return 1;
+ return desc->flags & AV_PIX_FMT_FLAG_ALPHA;
}
+#if 1
+#define isPacked(x) ( \
+ (x)==AV_PIX_FMT_PAL8 \
+ || (x)==AV_PIX_FMT_YUYV422 \
+ || (x)==AV_PIX_FMT_YVYU422 \
+ || (x)==AV_PIX_FMT_UYVY422 \
+ || (x)==AV_PIX_FMT_YA8 \
+ || (x)==AV_PIX_FMT_YA16LE \
+ || (x)==AV_PIX_FMT_YA16BE \
+ || (x)==AV_PIX_FMT_AYUV64LE \
+ || (x)==AV_PIX_FMT_AYUV64BE \
+ || isRGBinInt(x) \
+ || isBGRinInt(x) \
+ )
+#else
static av_always_inline int isPacked(enum AVPixelFormat pix_fmt)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
@@ -673,6 +820,7 @@ static av_always_inline int isPacked(enum AVPixelFormat pix_fmt)
pix_fmt == AV_PIX_FMT_PAL8);
}
+#endif
static av_always_inline int isPlanar(enum AVPixelFormat pix_fmt)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
@@ -699,22 +847,23 @@ static av_always_inline int usePal(enum AVPixelFormat pix_fmt)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
av_assert0(desc);
- return ((desc->flags & AV_PIX_FMT_FLAG_PAL) || (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) ||
- pix_fmt == AV_PIX_FMT_YA8);
+ return (desc->flags & AV_PIX_FMT_FLAG_PAL) || (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL);
}
extern const uint64_t ff_dither4[2];
extern const uint64_t ff_dither8[2];
-extern const uint8_t ff_dither_4x4_16[4][8];
-extern const uint8_t ff_dither_8x8_32[8][8];
-extern const uint8_t ff_dither_8x8_73[8][8];
-extern const uint8_t ff_dither_8x8_128[8][8];
-extern const uint8_t ff_dither_8x8_220[8][8];
+extern const uint8_t ff_dither_2x2_4[3][8];
+extern const uint8_t ff_dither_2x2_8[3][8];
+extern const uint8_t ff_dither_4x4_16[5][8];
+extern const uint8_t ff_dither_8x8_32[9][8];
+extern const uint8_t ff_dither_8x8_73[9][8];
+extern const uint8_t ff_dither_8x8_128[9][8];
+extern const uint8_t ff_dither_8x8_220[9][8];
-extern const int32_t ff_yuv2rgb_coeffs[8][4];
+extern const int32_t ff_yuv2rgb_coeffs[11][4];
-extern const AVClass sws_context_class;
+extern const AVClass ff_sws_context_class;
/**
* Set c->swscale to an unscaled converter if one exists for the specific
@@ -722,6 +871,8 @@ extern const AVClass sws_context_class;
*/
void ff_get_unscaled_swscale(SwsContext *c);
void ff_get_unscaled_swscale_ppc(SwsContext *c);
+void ff_get_unscaled_swscale_arm(SwsContext *c);
+void ff_get_unscaled_swscale_aarch64(SwsContext *c);
/**
* Return function pointer to fastest main scaler path function depending
@@ -740,5 +891,147 @@ void ff_sws_init_output_funcs(SwsContext *c,
yuv2anyX_fn *yuv2anyX);
void ff_sws_init_swscale_ppc(SwsContext *c);
void ff_sws_init_swscale_x86(SwsContext *c);
+void ff_sws_init_swscale_aarch64(SwsContext *c);
+void ff_sws_init_swscale_arm(SwsContext *c);
+
+void ff_hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth,
+ const uint8_t *src, int srcW, int xInc);
+void ff_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 ff_init_hscaler_mmxext(int dstW, int xInc, uint8_t *filterCode,
+ int16_t *filter, int32_t *filterPos,
+ int numSplits);
+void ff_hyscale_fast_mmxext(SwsContext *c, int16_t *dst,
+ int dstWidth, const uint8_t *src,
+ int srcW, int xInc);
+void ff_hcscale_fast_mmxext(SwsContext *c, int16_t *dst1, int16_t *dst2,
+ int dstWidth, const uint8_t *src1,
+ const uint8_t *src2, int srcW, int xInc);
+
+/**
+ * Allocate and return an SwsContext.
+ * This is like sws_getContext() but does not perform the init step, allowing
+ * the user to set additional AVOptions.
+ *
+ * @see sws_getContext()
+ */
+struct SwsContext *sws_alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat,
+ int dstW, int dstH, enum AVPixelFormat dstFormat,
+ int flags, const double *param);
+
+int ff_sws_alphablendaway(SwsContext *c, const uint8_t *src[],
+ int srcStride[], int srcSliceY, int srcSliceH,
+ uint8_t *dst[], int dstStride[]);
+
+static inline void fillPlane16(uint8_t *plane, int stride, int width, int height, int y,
+ int alpha, int bits, const int big_endian)
+{
+ int i, j;
+ uint8_t *ptr = plane + stride * y;
+ int v = alpha ? 0xFFFF>>(16-bits) : (1<<(bits-1));
+ for (i = 0; i < height; i++) {
+#define FILL(wfunc) \
+ for (j = 0; j < width; j++) {\
+ wfunc(ptr+2*j, v);\
+ }
+ if (big_endian) {
+ FILL(AV_WB16);
+ } else {
+ FILL(AV_WL16);
+ }
+ ptr += stride;
+ }
+}
+
+#define MAX_SLICE_PLANES 4
+
+/// Slice plane
+typedef struct SwsPlane
+{
+ int available_lines; ///< max number of lines that can be hold by this plane
+ int sliceY; ///< index of first line
+ int sliceH; ///< number of lines
+ uint8_t **line; ///< line buffer
+ uint8_t **tmp; ///< Tmp line buffer used by mmx code
+} SwsPlane;
+
+/**
+ * Struct which defines a slice of an image to be scaled or an output for
+ * a scaled slice.
+ * A slice can also be used as intermediate ring buffer for scaling steps.
+ */
+typedef struct SwsSlice
+{
+ int width; ///< Slice line width
+ int h_chr_sub_sample; ///< horizontal chroma subsampling factor
+ int v_chr_sub_sample; ///< vertical chroma subsampling factor
+ int is_ring; ///< flag to identify if this slice is a ring buffer
+ int should_free_lines; ///< flag to identify if there are dynamic allocated lines
+ enum AVPixelFormat fmt; ///< planes pixel format
+ SwsPlane plane[MAX_SLICE_PLANES]; ///< color planes
+} SwsSlice;
+
+/**
+ * Struct which holds all necessary data for processing a slice.
+ * A processing step can be a color conversion or horizontal/vertical scaling.
+ */
+typedef struct SwsFilterDescriptor
+{
+ SwsSlice *src; ///< Source slice
+ SwsSlice *dst; ///< Output slice
+
+ int alpha; ///< Flag for processing alpha channel
+ void *instance; ///< Filter instance data
+
+ /// Function for processing input slice sliceH lines starting from line sliceY
+ int (*process)(SwsContext *c, struct SwsFilterDescriptor *desc, int sliceY, int sliceH);
+} SwsFilterDescriptor;
+
+// warp input lines in the form (src + width*i + j) to slice format (line[i][j])
+// relative=true means first line src[x][0] otherwise first line is src[x][lum/crh Y]
+int ff_init_slice_from_src(SwsSlice * s, uint8_t *src[4], int stride[4], int srcW, int lumY, int lumH, int chrY, int chrH, int relative);
+
+// Initialize scaler filter descriptor chain
+int ff_init_filters(SwsContext *c);
+
+// Free all filter data
+int ff_free_filters(SwsContext *c);
+
+/*
+ function for applying ring buffer logic into slice s
+ It checks if the slice can hold more @lum lines, if yes
+ do nothing otherwise remove @lum least used lines.
+ It applies the same procedure for @chr lines.
+*/
+int ff_rotate_slice(SwsSlice *s, int lum, int chr);
+
+/// initializes gamma conversion descriptor
+int ff_init_gamma_convert(SwsFilterDescriptor *desc, SwsSlice * src, uint16_t *table);
+
+/// initializes lum pixel format conversion descriptor
+int ff_init_desc_fmt_convert(SwsFilterDescriptor *desc, SwsSlice * src, SwsSlice *dst, uint32_t *pal);
+
+/// initializes lum horizontal scaling descriptor
+int ff_init_desc_hscale(SwsFilterDescriptor *desc, SwsSlice *src, SwsSlice *dst, uint16_t *filter, int * filter_pos, int filter_size, int xInc);
+
+/// initializes chr pixel format conversion descriptor
+int ff_init_desc_cfmt_convert(SwsFilterDescriptor *desc, SwsSlice * src, SwsSlice *dst, uint32_t *pal);
+
+/// initializes chr horizontal scaling descriptor
+int ff_init_desc_chscale(SwsFilterDescriptor *desc, SwsSlice *src, SwsSlice *dst, uint16_t *filter, int * filter_pos, int filter_size, int xInc);
+
+int ff_init_desc_no_chr(SwsFilterDescriptor *desc, SwsSlice * src, SwsSlice *dst);
+
+/// initializes vertical scaling descriptors
+int ff_init_vscale(SwsContext *c, SwsFilterDescriptor *desc, SwsSlice *src, SwsSlice *dst);
+
+/// setup vertical scaler functions
+void ff_init_vscale_pfn(SwsContext *c, yuv2planar1_fn yuv2plane1, yuv2planarX_fn yuv2planeX,
+ yuv2interleavedX_fn yuv2nv12cX, yuv2packed1_fn yuv2packed1, yuv2packed2_fn yuv2packed2,
+ yuv2packedX_fn yuv2packedX, yuv2anyX_fn yuv2anyX, int use_mmx);
+
+//number of extra lines to process
+#define MAX_LINES_AHEAD 4
#endif /* SWSCALE_SWSCALE_INTERNAL_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 08:04:26 +0000