| /* |
| * Copyright 2011 The LibYuv Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "libyuv/convert.h" |
| |
| #include "libyuv/basic_types.h" |
| #include "libyuv/cpu_id.h" |
| #include "libyuv/format_conversion.h" |
| #ifdef HAVE_JPEG |
| #include "libyuv/mjpeg_decoder.h" |
| #endif |
| #include "libyuv/planar_functions.h" |
| #include "libyuv/rotate.h" |
| #include "libyuv/video_common.h" |
| #include "libyuv/row.h" |
| |
| #ifdef __cplusplus |
| namespace libyuv { |
| extern "C" { |
| #endif |
| |
| // Copy I420 with optional flipping |
| LIBYUV_API |
| int I420Copy(const uint8* src_y, int src_stride_y, |
| const uint8* src_u, int src_stride_u, |
| const uint8* src_v, int src_stride_v, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_y || !src_u || !src_v || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| int halfheight = (height + 1) >> 1; |
| src_y = src_y + (height - 1) * src_stride_y; |
| src_u = src_u + (halfheight - 1) * src_stride_u; |
| src_v = src_v + (halfheight - 1) * src_stride_v; |
| src_stride_y = -src_stride_y; |
| src_stride_u = -src_stride_u; |
| src_stride_v = -src_stride_v; |
| } |
| |
| int halfwidth = (width + 1) >> 1; |
| int halfheight = (height + 1) >> 1; |
| if (dst_y) { |
| CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); |
| } |
| CopyPlane(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, halfheight); |
| CopyPlane(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, halfheight); |
| return 0; |
| } |
| |
| // Move to row_win etc. |
| #if !defined(YUV_DISABLE_ASM) && defined(_M_IX86) |
| #define HAS_HALFROW_SSE2 |
| __declspec(naked) __declspec(align(16)) |
| static void HalfRow_SSE2(const uint8* src_uv, int src_uv_stride, |
| uint8* dst_uv, int pix) { |
| __asm { |
| push edi |
| mov eax, [esp + 4 + 4] // src_uv |
| mov edx, [esp + 4 + 8] // src_uv_stride |
| mov edi, [esp + 4 + 12] // dst_v |
| mov ecx, [esp + 4 + 16] // pix |
| sub edi, eax |
| |
| align 16 |
| convertloop: |
| movdqa xmm0, [eax] |
| pavgb xmm0, [eax + edx] |
| sub ecx, 16 |
| movdqa [eax + edi], xmm0 |
| lea eax, [eax + 16] |
| jg convertloop |
| pop edi |
| ret |
| } |
| } |
| |
| #elif !defined(YUV_DISABLE_ASM) && (defined(__x86_64__) || defined(__i386__)) |
| #define HAS_HALFROW_SSE2 |
| static void HalfRow_SSE2(const uint8* src_uv, int src_uv_stride, |
| uint8* dst_uv, int pix) { |
| asm volatile ( |
| "sub %0,%1 \n" |
| ".p2align 4 \n" |
| "1: \n" |
| "movdqa (%0),%%xmm0 \n" |
| "pavgb (%0,%3),%%xmm0 \n" |
| "sub $0x10,%2 \n" |
| "movdqa %%xmm0,(%0,%1) \n" |
| "lea 0x10(%0),%0 \n" |
| "jg 1b \n" |
| : "+r"(src_uv), // %0 |
| "+r"(dst_uv), // %1 |
| "+r"(pix) // %2 |
| : "r"(static_cast<intptr_t>(src_uv_stride)) // %3 |
| : "memory", "cc" |
| #if defined(__SSE2__) |
| , "xmm0" |
| #endif |
| ); |
| } |
| #endif |
| |
| static void HalfRow_C(const uint8* src_uv, int src_uv_stride, |
| uint8* dst_uv, int pix) { |
| for (int x = 0; x < pix; ++x) { |
| dst_uv[x] = (src_uv[x] + src_uv[src_uv_stride + x] + 1) >> 1; |
| } |
| } |
| |
| LIBYUV_API |
| int I422ToI420(const uint8* src_y, int src_stride_y, |
| const uint8* src_u, int src_stride_u, |
| const uint8* src_v, int src_stride_v, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_y || !src_u || !src_v || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_y = src_y + (height - 1) * src_stride_y; |
| src_u = src_u + (height - 1) * src_stride_u; |
| src_v = src_v + (height - 1) * src_stride_v; |
| src_stride_y = -src_stride_y; |
| src_stride_u = -src_stride_u; |
| src_stride_v = -src_stride_v; |
| } |
| int halfwidth = (width + 1) >> 1; |
| void (*HalfRow)(const uint8* src_uv, int src_uv_stride, |
| uint8* dst_uv, int pix) = HalfRow_C; |
| #if defined(HAS_HALFROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| IS_ALIGNED(halfwidth, 16) && |
| IS_ALIGNED(src_u, 16) && IS_ALIGNED(src_stride_u, 16) && |
| IS_ALIGNED(src_v, 16) && IS_ALIGNED(src_stride_v, 16) && |
| IS_ALIGNED(dst_u, 16) && IS_ALIGNED(dst_stride_u, 16) && |
| IS_ALIGNED(dst_v, 16) && IS_ALIGNED(dst_stride_v, 16)) { |
| HalfRow = HalfRow_SSE2; |
| } |
| #endif |
| |
| // Copy Y plane |
| if (dst_y) { |
| CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); |
| } |
| |
| // SubSample U plane. |
| int y; |
| for (y = 0; y < height - 1; y += 2) { |
| HalfRow(src_u, src_stride_u, dst_u, halfwidth); |
| src_u += src_stride_u * 2; |
| dst_u += dst_stride_u; |
| } |
| if (height & 1) { |
| HalfRow(src_u, 0, dst_u, halfwidth); |
| } |
| |
| // SubSample V plane. |
| for (y = 0; y < height - 1; y += 2) { |
| HalfRow(src_v, src_stride_v, dst_v, halfwidth); |
| src_v += src_stride_v * 2; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| HalfRow(src_v, 0, dst_v, halfwidth); |
| } |
| return 0; |
| } |
| |
| // Blends 32x2 pixels to 16x1 |
| // source in scale.cc |
| #if !defined(YUV_DISABLE_ASM) && (defined(__ARM_NEON__) || defined(LIBYUV_NEON)) |
| #define HAS_SCALEROWDOWN2_NEON |
| void ScaleRowDown2Int_NEON(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst, int dst_width); |
| #elif !defined(YUV_DISABLE_ASM) && \ |
| (defined(_M_IX86) || defined(__x86_64__) || defined(__i386__)) |
| |
| void ScaleRowDown2Int_SSE2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst_ptr, int dst_width); |
| #endif |
| void ScaleRowDown2Int_C(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst_ptr, int dst_width); |
| |
| LIBYUV_API |
| int I444ToI420(const uint8* src_y, int src_stride_y, |
| const uint8* src_u, int src_stride_u, |
| const uint8* src_v, int src_stride_v, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_y || !src_u || !src_v || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_y = src_y + (height - 1) * src_stride_y; |
| src_u = src_u + (height - 1) * src_stride_u; |
| src_v = src_v + (height - 1) * src_stride_v; |
| src_stride_y = -src_stride_y; |
| src_stride_u = -src_stride_u; |
| src_stride_v = -src_stride_v; |
| } |
| int halfwidth = (width + 1) >> 1; |
| void (*ScaleRowDown2)(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst_ptr, int dst_width) = ScaleRowDown2Int_C; |
| #if defined(HAS_SCALEROWDOWN2_NEON) |
| if (TestCpuFlag(kCpuHasNEON) && |
| IS_ALIGNED(halfwidth, 16)) { |
| ScaleRowDown2 = ScaleRowDown2Int_NEON; |
| } |
| #elif defined(HAS_SCALEROWDOWN2_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| IS_ALIGNED(halfwidth, 16) && |
| IS_ALIGNED(src_u, 16) && IS_ALIGNED(src_stride_u, 16) && |
| IS_ALIGNED(src_v, 16) && IS_ALIGNED(src_stride_v, 16) && |
| IS_ALIGNED(dst_u, 16) && IS_ALIGNED(dst_stride_u, 16) && |
| IS_ALIGNED(dst_v, 16) && IS_ALIGNED(dst_stride_v, 16)) { |
| ScaleRowDown2 = ScaleRowDown2Int_SSE2; |
| } |
| #endif |
| |
| // Copy Y plane |
| if (dst_y) { |
| CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); |
| } |
| |
| // SubSample U plane. |
| int y; |
| for (y = 0; y < height - 1; y += 2) { |
| ScaleRowDown2(src_u, src_stride_u, dst_u, halfwidth); |
| src_u += src_stride_u * 2; |
| dst_u += dst_stride_u; |
| } |
| if (height & 1) { |
| ScaleRowDown2(src_u, 0, dst_u, halfwidth); |
| } |
| |
| // SubSample V plane. |
| for (y = 0; y < height - 1; y += 2) { |
| ScaleRowDown2(src_v, src_stride_v, dst_v, halfwidth); |
| src_v += src_stride_v * 2; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| ScaleRowDown2(src_v, 0, dst_v, halfwidth); |
| } |
| return 0; |
| } |
| |
| // use Bilinear for upsampling chroma |
| void ScalePlaneBilinear(int src_width, int src_height, |
| int dst_width, int dst_height, |
| int src_stride, int dst_stride, |
| const uint8* src_ptr, uint8* dst_ptr); |
| |
| // 411 chroma is 1/4 width, 1x height |
| // 420 chroma is 1/2 width, 1/2 height |
| LIBYUV_API |
| int I411ToI420(const uint8* src_y, int src_stride_y, |
| const uint8* src_u, int src_stride_u, |
| const uint8* src_v, int src_stride_v, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_y || !src_u || !src_v || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| dst_y = dst_y + (height - 1) * dst_stride_y; |
| dst_u = dst_u + (height - 1) * dst_stride_u; |
| dst_v = dst_v + (height - 1) * dst_stride_v; |
| dst_stride_y = -dst_stride_y; |
| dst_stride_u = -dst_stride_u; |
| dst_stride_v = -dst_stride_v; |
| } |
| |
| // Copy Y plane |
| if (dst_y) { |
| CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); |
| } |
| |
| int halfwidth = (width + 1) >> 1; |
| int halfheight = (height + 1) >> 1; |
| int quarterwidth = (width + 3) >> 2; |
| |
| // Resample U plane. |
| ScalePlaneBilinear(quarterwidth, height, // from 1/4 width, 1x height |
| halfwidth, halfheight, // to 1/2 width, 1/2 height |
| src_stride_u, |
| dst_stride_u, |
| src_u, dst_u); |
| |
| // Resample V plane. |
| ScalePlaneBilinear(quarterwidth, height, // from 1/4 width, 1x height |
| halfwidth, halfheight, // to 1/2 width, 1/2 height |
| src_stride_v, |
| dst_stride_v, |
| src_v, dst_v); |
| return 0; |
| } |
| |
| // I400 is greyscale typically used in MJPG |
| LIBYUV_API |
| int I400ToI420(const uint8* src_y, int src_stride_y, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_y || !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_y = src_y + (height - 1) * src_stride_y; |
| src_stride_y = -src_stride_y; |
| } |
| int halfwidth = (width + 1) >> 1; |
| int halfheight = (height + 1) >> 1; |
| CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); |
| SetPlane(dst_u, dst_stride_u, halfwidth, halfheight, 128); |
| SetPlane(dst_v, dst_stride_v, halfwidth, halfheight, 128); |
| return 0; |
| } |
| |
| static void CopyPlane2(const uint8* src, int src_stride_0, int src_stride_1, |
| uint8* dst, int dst_stride_frame, |
| int width, int height) { |
| void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C; |
| #if defined(HAS_COPYROW_NEON) |
| if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 64)) { |
| CopyRow = CopyRow_NEON; |
| } |
| #elif defined(HAS_COPYROW_X86) |
| if (IS_ALIGNED(width, 4)) { |
| CopyRow = CopyRow_X86; |
| #if defined(HAS_COPYROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| IS_ALIGNED(width, 32) && IS_ALIGNED(src, 16) && |
| IS_ALIGNED(src_stride_0, 16) && IS_ALIGNED(src_stride_1, 16) && |
| IS_ALIGNED(dst, 16) && IS_ALIGNED(dst_stride_frame, 16)) { |
| CopyRow = CopyRow_SSE2; |
| } |
| #endif |
| } |
| #endif |
| |
| // Copy plane |
| for (int y = 0; y < height - 1; y += 2) { |
| CopyRow(src, dst, width); |
| CopyRow(src + src_stride_0, dst + dst_stride_frame, width); |
| src += src_stride_0 + src_stride_1; |
| dst += dst_stride_frame * 2; |
| } |
| if (height & 1) { |
| CopyRow(src, dst, width); |
| } |
| } |
| |
| // Support converting from FOURCC_M420 |
| // Useful for bandwidth constrained transports like USB 1.0 and 2.0 and for |
| // easy conversion to I420. |
| // M420 format description: |
| // M420 is row biplanar 420: 2 rows of Y and 1 row of UV. |
| // Chroma is half width / half height. (420) |
| // src_stride_m420 is row planar. Normally this will be the width in pixels. |
| // The UV plane is half width, but 2 values, so src_stride_m420 applies to |
| // this as well as the two Y planes. |
| static int X420ToI420(const uint8* src_y, |
| int src_stride_y0, int src_stride_y1, |
| const uint8* src_uv, int src_stride_uv, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_y || !src_uv || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| int halfheight = (height + 1) >> 1; |
| dst_y = dst_y + (height - 1) * dst_stride_y; |
| dst_u = dst_u + (halfheight - 1) * dst_stride_u; |
| dst_v = dst_v + (halfheight - 1) * dst_stride_v; |
| dst_stride_y = -dst_stride_y; |
| dst_stride_u = -dst_stride_u; |
| dst_stride_v = -dst_stride_v; |
| } |
| |
| int halfwidth = (width + 1) >> 1; |
| void (*SplitUV)(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int pix) = |
| SplitUV_C; |
| #if defined(HAS_SPLITUV_NEON) |
| if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(halfwidth, 16)) { |
| SplitUV = SplitUV_NEON; |
| } |
| #elif defined(HAS_SPLITUV_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| IS_ALIGNED(halfwidth, 16) && |
| IS_ALIGNED(src_uv, 16) && IS_ALIGNED(src_stride_uv, 16) && |
| IS_ALIGNED(dst_u, 16) && IS_ALIGNED(dst_stride_u, 16) && |
| IS_ALIGNED(dst_v, 16) && IS_ALIGNED(dst_stride_v, 16)) { |
| SplitUV = SplitUV_SSE2; |
| } |
| #endif |
| |
| if (dst_y) { |
| CopyPlane2(src_y, src_stride_y0, src_stride_y1, dst_y, dst_stride_y, |
| width, height); |
| } |
| |
| int halfheight = (height + 1) >> 1; |
| for (int y = 0; y < halfheight; ++y) { |
| // Copy a row of UV. |
| SplitUV(src_uv, dst_u, dst_v, halfwidth); |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| src_uv += src_stride_uv; |
| } |
| return 0; |
| } |
| |
| // Convert NV12 to I420. |
| LIBYUV_API |
| int NV12ToI420(const uint8* src_y, int src_stride_y, |
| const uint8* src_uv, int src_stride_uv, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| return X420ToI420(src_y, src_stride_y, src_stride_y, |
| src_uv, src_stride_uv, |
| dst_y, dst_stride_y, |
| dst_u, dst_stride_u, |
| dst_v, dst_stride_v, |
| width, height); |
| } |
| |
| // Convert M420 to I420. |
| LIBYUV_API |
| int M420ToI420(const uint8* src_m420, int src_stride_m420, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| return X420ToI420(src_m420, src_stride_m420, src_stride_m420 * 2, |
| src_m420 + src_stride_m420 * 2, src_stride_m420 * 3, |
| dst_y, dst_stride_y, |
| dst_u, dst_stride_u, |
| dst_v, dst_stride_v, |
| width, height); |
| } |
| |
| // Convert Q420 to I420. |
| // Format is rows of YY/YUYV |
| LIBYUV_API |
| int Q420ToI420(const uint8* src_y, int src_stride_y, |
| const uint8* src_yuy2, int src_stride_yuy2, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_y || !src_yuy2 || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| int halfheight = (height + 1) >> 1; |
| dst_y = dst_y + (height - 1) * dst_stride_y; |
| dst_u = dst_u + (halfheight - 1) * dst_stride_u; |
| dst_v = dst_v + (halfheight - 1) * dst_stride_v; |
| dst_stride_y = -dst_stride_y; |
| dst_stride_u = -dst_stride_u; |
| dst_stride_v = -dst_stride_v; |
| } |
| // CopyRow for rows of just Y in Q420 copied to Y plane of I420. |
| void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C; |
| #if defined(HAS_COPYROW_NEON) |
| if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 64)) { |
| CopyRow = CopyRow_NEON; |
| } |
| #endif |
| #if defined(HAS_COPYROW_X86) |
| if (IS_ALIGNED(width, 4)) { |
| CopyRow = CopyRow_X86; |
| } |
| #endif |
| #if defined(HAS_COPYROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(width, 32) && |
| IS_ALIGNED(src_y, 16) && IS_ALIGNED(src_stride_y, 16) && |
| IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| CopyRow = CopyRow_SSE2; |
| } |
| #endif |
| |
| void (*YUY2ToUV422Row)(const uint8* src_yuy2, uint8* dst_u, uint8* dst_v, |
| int pix) = YUY2ToUV422Row_C; |
| void (*YUY2ToYRow)(const uint8* src_yuy2, uint8* dst_y, int pix) = |
| YUY2ToYRow_C; |
| #if defined(HAS_YUY2TOYROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2)) { |
| if (width > 16) { |
| YUY2ToUV422Row = YUY2ToUV422Row_Any_SSE2; |
| YUY2ToYRow = YUY2ToYRow_Any_SSE2; |
| } |
| if (IS_ALIGNED(width, 16)) { |
| YUY2ToUV422Row = YUY2ToUV422Row_Unaligned_SSE2; |
| YUY2ToYRow = YUY2ToYRow_Unaligned_SSE2; |
| if (IS_ALIGNED(src_yuy2, 16) && IS_ALIGNED(src_stride_yuy2, 16)) { |
| YUY2ToUV422Row = YUY2ToUV422Row_SSE2; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| YUY2ToYRow = YUY2ToYRow_SSE2; |
| } |
| } |
| } |
| } |
| #elif defined(HAS_YUY2TOYROW_NEON) |
| if (TestCpuFlag(kCpuHasNEON)) { |
| if (width > 8) { |
| YUY2ToYRow = YUY2ToYRow_Any_NEON; |
| if (width > 16) { |
| YUY2ToUV422Row = YUY2ToUV422Row_Any_NEON; |
| } |
| } |
| if (IS_ALIGNED(width, 16)) { |
| YUY2ToYRow = YUY2ToYRow_NEON; |
| YUY2ToUV422Row = YUY2ToUV422Row_NEON; |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| CopyRow(src_y, dst_y, width); |
| src_y += src_stride_y; |
| dst_y += dst_stride_y; |
| |
| YUY2ToUV422Row(src_yuy2, dst_u, dst_v, width); |
| YUY2ToYRow(src_yuy2, dst_y, width); |
| src_yuy2 += src_stride_yuy2; |
| dst_y += dst_stride_y; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| CopyRow(src_y, dst_y, width); |
| YUY2ToUV422Row(src_yuy2, dst_u, dst_v, width); |
| } |
| return 0; |
| } |
| |
| // Test if over reading on source is safe. |
| // TODO(fbarchard): Find more efficient solution to safely do odd sizes. |
| // Macros to control read policy, from slowest to fastest: |
| // READSAFE_NEVER - disables read ahead on systems with strict memory reads |
| // READSAFE_ODDHEIGHT - last row of odd height done with C. |
| // This policy assumes that the caller handles the last row of an odd height |
| // image using C. |
| // READSAFE_PAGE - enable read ahead within same page. |
| // A page is 4096 bytes. When reading ahead, if the last pixel is near the |
| // end the page, and a read spans the page into the next page, a memory |
| // exception can occur if that page has not been allocated, or is a guard |
| // page. This setting ensures the overread is within the same page. |
| // READSAFE_ALWAYS - enables read ahead on systems without memory exceptions |
| // or where buffers are padded by 64 bytes. |
| |
| #if defined(HAS_RGB24TOARGBROW_SSSE3) || \ |
| defined(HAS_RGB24TOARGBROW_SSSE3) || \ |
| defined(HAS_RAWTOARGBROW_SSSE3) || \ |
| defined(HAS_RGB565TOARGBROW_SSE2) || \ |
| defined(HAS_ARGB1555TOARGBROW_SSE2) || \ |
| defined(HAS_ARGB4444TOARGBROW_SSE2) |
| |
| #define READSAFE_ODDHEIGHT |
| |
| static bool TestReadSafe(const uint8* src_yuy2, int src_stride_yuy2, |
| int width, int height, int bpp, int overread) { |
| if (width > kMaxStride) { |
| return false; |
| } |
| #if defined(READSAFE_ALWAYS) |
| return true; |
| #elif defined(READSAFE_NEVER) |
| return false; |
| #elif defined(READSAFE_ODDHEIGHT) |
| if (!(width & 15) || |
| (src_stride_yuy2 >= 0 && (height & 1) && width * bpp >= overread)) { |
| return true; |
| } |
| return false; |
| #elif defined(READSAFE_PAGE) |
| if (src_stride_yuy2 >= 0) { |
| src_yuy2 += (height - 1) * src_stride_yuy2; |
| } |
| uintptr_t last_adr = (uintptr_t)(src_yuy2) + width * bpp - 1; |
| uintptr_t last_read_adr = last_adr + overread - 1; |
| if (((last_adr ^ last_read_adr) & ~4095) == 0) { |
| return true; |
| } |
| return false; |
| #endif |
| } |
| #endif |
| |
| // Convert YUY2 to I420. |
| LIBYUV_API |
| int YUY2ToI420(const uint8* src_yuy2, int src_stride_yuy2, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_yuy2 = src_yuy2 + (height - 1) * src_stride_yuy2; |
| src_stride_yuy2 = -src_stride_yuy2; |
| } |
| void (*YUY2ToUVRow)(const uint8* src_yuy2, int src_stride_yuy2, |
| uint8* dst_u, uint8* dst_v, int pix); |
| void (*YUY2ToYRow)(const uint8* src_yuy2, |
| uint8* dst_y, int pix); |
| YUY2ToYRow = YUY2ToYRow_C; |
| YUY2ToUVRow = YUY2ToUVRow_C; |
| #if defined(HAS_YUY2TOYROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2)) { |
| if (width > 16) { |
| YUY2ToUVRow = YUY2ToUVRow_Any_SSE2; |
| YUY2ToYRow = YUY2ToYRow_Any_SSE2; |
| } |
| if (IS_ALIGNED(width, 16)) { |
| YUY2ToUVRow = YUY2ToUVRow_Unaligned_SSE2; |
| YUY2ToYRow = YUY2ToYRow_Unaligned_SSE2; |
| if (IS_ALIGNED(src_yuy2, 16) && IS_ALIGNED(src_stride_yuy2, 16)) { |
| YUY2ToUVRow = YUY2ToUVRow_SSE2; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| YUY2ToYRow = YUY2ToYRow_SSE2; |
| } |
| } |
| } |
| } |
| #elif defined(HAS_YUY2TOYROW_NEON) |
| if (TestCpuFlag(kCpuHasNEON)) { |
| if (width > 8) { |
| YUY2ToYRow = YUY2ToYRow_Any_NEON; |
| if (width > 16) { |
| YUY2ToUVRow = YUY2ToUVRow_Any_NEON; |
| } |
| } |
| if (IS_ALIGNED(width, 16)) { |
| YUY2ToYRow = YUY2ToYRow_NEON; |
| YUY2ToUVRow = YUY2ToUVRow_NEON; |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| YUY2ToUVRow(src_yuy2, src_stride_yuy2, dst_u, dst_v, width); |
| YUY2ToYRow(src_yuy2, dst_y, width); |
| YUY2ToYRow(src_yuy2 + src_stride_yuy2, dst_y + dst_stride_y, width); |
| src_yuy2 += src_stride_yuy2 * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| YUY2ToUVRow(src_yuy2, 0, dst_u, dst_v, width); |
| YUY2ToYRow(src_yuy2, dst_y, width); |
| } |
| return 0; |
| } |
| |
| // Convert UYVY to I420. |
| LIBYUV_API |
| int UYVYToI420(const uint8* src_uyvy, int src_stride_uyvy, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_uyvy = src_uyvy + (height - 1) * src_stride_uyvy; |
| src_stride_uyvy = -src_stride_uyvy; |
| } |
| void (*UYVYToUVRow)(const uint8* src_uyvy, int src_stride_uyvy, |
| uint8* dst_u, uint8* dst_v, int pix); |
| void (*UYVYToYRow)(const uint8* src_uyvy, |
| uint8* dst_y, int pix); |
| UYVYToYRow = UYVYToYRow_C; |
| UYVYToUVRow = UYVYToUVRow_C; |
| #if defined(HAS_UYVYTOYROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2)) { |
| if (width > 16) { |
| UYVYToUVRow = UYVYToUVRow_Any_SSE2; |
| UYVYToYRow = UYVYToYRow_Any_SSE2; |
| } |
| if (IS_ALIGNED(width, 16)) { |
| UYVYToUVRow = UYVYToUVRow_Unaligned_SSE2; |
| UYVYToYRow = UYVYToYRow_Unaligned_SSE2; |
| if (IS_ALIGNED(src_uyvy, 16) && IS_ALIGNED(src_stride_uyvy, 16)) { |
| UYVYToUVRow = UYVYToUVRow_SSE2; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| UYVYToYRow = UYVYToYRow_SSE2; |
| } |
| } |
| } |
| } |
| #elif defined(HAS_UYVYTOYROW_NEON) |
| if (TestCpuFlag(kCpuHasNEON)) { |
| if (width > 8) { |
| UYVYToYRow = UYVYToYRow_Any_NEON; |
| if (width > 16) { |
| UYVYToUVRow = UYVYToUVRow_Any_NEON; |
| } |
| } |
| if (IS_ALIGNED(width, 16)) { |
| UYVYToYRow = UYVYToYRow_NEON; |
| UYVYToUVRow = UYVYToUVRow_NEON; |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| UYVYToUVRow(src_uyvy, src_stride_uyvy, dst_u, dst_v, width); |
| UYVYToYRow(src_uyvy, dst_y, width); |
| UYVYToYRow(src_uyvy + src_stride_uyvy, dst_y + dst_stride_y, width); |
| src_uyvy += src_stride_uyvy * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| UYVYToUVRow(src_uyvy, 0, dst_u, dst_v, width); |
| UYVYToYRow(src_uyvy, dst_y, width); |
| } |
| return 0; |
| } |
| |
| // Visual C x86 or GCC little endian. |
| #if defined(__x86_64__) || defined(_M_X64) || \ |
| defined(__i386__) || defined(_M_IX86) || \ |
| defined(__arm__) || defined(_M_ARM) || \ |
| (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) |
| #define LIBYUV_LITTLE_ENDIAN |
| #endif |
| |
| #ifdef LIBYUV_LITTLE_ENDIAN |
| #define READWORD(p) (*reinterpret_cast<const uint32*>(p)) |
| #else |
| static inline uint32 READWORD(const uint8* p) { |
| return static_cast<uint32>(p[0]) | |
| (static_cast<uint32>(p[1]) << 8) | |
| (static_cast<uint32>(p[2]) << 16) | |
| (static_cast<uint32>(p[3]) << 24); |
| } |
| #endif |
| |
| // Must be multiple of 6 pixels. Will over convert to handle remainder. |
| // https://developer.apple.com/quicktime/icefloe/dispatch019.html#v210 |
| static void V210ToUYVYRow_C(const uint8* src_v210, uint8* dst_uyvy, int width) { |
| for (int x = 0; x < width; x += 6) { |
| uint32 w = READWORD(src_v210 + 0); |
| dst_uyvy[0] = (w >> 2) & 0xff; |
| dst_uyvy[1] = (w >> 12) & 0xff; |
| dst_uyvy[2] = (w >> 22) & 0xff; |
| |
| w = READWORD(src_v210 + 4); |
| dst_uyvy[3] = (w >> 2) & 0xff; |
| dst_uyvy[4] = (w >> 12) & 0xff; |
| dst_uyvy[5] = (w >> 22) & 0xff; |
| |
| w = READWORD(src_v210 + 8); |
| dst_uyvy[6] = (w >> 2) & 0xff; |
| dst_uyvy[7] = (w >> 12) & 0xff; |
| dst_uyvy[8] = (w >> 22) & 0xff; |
| |
| w = READWORD(src_v210 + 12); |
| dst_uyvy[9] = (w >> 2) & 0xff; |
| dst_uyvy[10] = (w >> 12) & 0xff; |
| dst_uyvy[11] = (w >> 22) & 0xff; |
| |
| src_v210 += 16; |
| dst_uyvy += 12; |
| } |
| } |
| |
| // Convert V210 to I420. |
| // V210 is 10 bit version of UYVY. 16 bytes to store 6 pixels. |
| // With is multiple of 48. |
| LIBYUV_API |
| int V210ToI420(const uint8* src_v210, int src_stride_v210, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (width * 2 * 2 > kMaxStride) { // 2 rows of UYVY are required. |
| return -1; |
| } else if (!src_v210 || !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_v210 = src_v210 + (height - 1) * src_stride_v210; |
| src_stride_v210 = -src_stride_v210; |
| } |
| SIMD_ALIGNED(uint8 row[kMaxStride * 2]); |
| void (*V210ToUYVYRow)(const uint8* src_v210, uint8* dst_uyvy, int pix); |
| V210ToUYVYRow = V210ToUYVYRow_C; |
| |
| void (*UYVYToUVRow)(const uint8* src_uyvy, int src_stride_uyvy, |
| uint8* dst_u, uint8* dst_v, int pix); |
| void (*UYVYToYRow)(const uint8* src_uyvy, |
| uint8* dst_y, int pix); |
| UYVYToYRow = UYVYToYRow_C; |
| UYVYToUVRow = UYVYToUVRow_C; |
| #if defined(HAS_UYVYTOYROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(width, 16)) { |
| UYVYToUVRow = UYVYToUVRow_SSE2; |
| UYVYToYRow = UYVYToYRow_Unaligned_SSE2; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| UYVYToYRow = UYVYToYRow_SSE2; |
| } |
| } |
| #elif defined(HAS_UYVYTOYROW_NEON) |
| if (TestCpuFlag(kCpuHasNEON)) { |
| if (width > 8) { |
| UYVYToYRow = UYVYToYRow_Any_NEON; |
| if (width > 16) { |
| UYVYToUVRow = UYVYToUVRow_Any_NEON; |
| } |
| } |
| if (IS_ALIGNED(width, 16)) { |
| UYVYToYRow = UYVYToYRow_NEON; |
| UYVYToUVRow = UYVYToUVRow_NEON; |
| } |
| } |
| #endif |
| |
| #if defined(HAS_UYVYTOYROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2)) { |
| if (width > 16) { |
| UYVYToUVRow = UYVYToUVRow_Any_SSE2; |
| UYVYToYRow = UYVYToYRow_Any_SSE2; |
| } |
| if (IS_ALIGNED(width, 16)) { |
| UYVYToYRow = UYVYToYRow_Unaligned_SSE2; |
| UYVYToUVRow = UYVYToUVRow_SSE2; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| UYVYToYRow = UYVYToYRow_SSE2; |
| } |
| } |
| } |
| #elif defined(HAS_UYVYTOYROW_NEON) |
| if (TestCpuFlag(kCpuHasNEON)) { |
| if (width > 8) { |
| UYVYToYRow = UYVYToYRow_Any_NEON; |
| if (width > 16) { |
| UYVYToUVRow = UYVYToUVRow_Any_NEON; |
| } |
| } |
| if (IS_ALIGNED(width, 16)) { |
| UYVYToYRow = UYVYToYRow_NEON; |
| UYVYToUVRow = UYVYToUVRow_NEON; |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| V210ToUYVYRow(src_v210, row, width); |
| V210ToUYVYRow(src_v210 + src_stride_v210, row + kMaxStride, width); |
| UYVYToUVRow(row, kMaxStride, dst_u, dst_v, width); |
| UYVYToYRow(row, dst_y, width); |
| UYVYToYRow(row + kMaxStride, dst_y + dst_stride_y, width); |
| src_v210 += src_stride_v210 * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| V210ToUYVYRow(src_v210, row, width); |
| UYVYToUVRow(row, 0, dst_u, dst_v, width); |
| UYVYToYRow(row, dst_y, width); |
| } |
| return 0; |
| } |
| |
| LIBYUV_API |
| int ARGBToI420(const uint8* src_argb, int src_stride_argb, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_argb || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_argb = src_argb + (height - 1) * src_stride_argb; |
| src_stride_argb = -src_stride_argb; |
| } |
| void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix); |
| void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, |
| uint8* dst_u, uint8* dst_v, int width); |
| |
| ARGBToYRow = ARGBToYRow_C; |
| ARGBToUVRow = ARGBToUVRow_C; |
| #if defined(HAS_ARGBTOYROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3)) { |
| if (width > 16) { |
| ARGBToUVRow = ARGBToUVRow_Any_SSSE3; |
| ARGBToYRow = ARGBToYRow_Any_SSSE3; |
| } |
| if (IS_ALIGNED(width, 16)) { |
| ARGBToUVRow = ARGBToUVRow_Unaligned_SSSE3; |
| ARGBToYRow = ARGBToYRow_Unaligned_SSSE3; |
| if (IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride_argb, 16)) { |
| ARGBToUVRow = ARGBToUVRow_SSSE3; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| ARGBToYRow = ARGBToYRow_SSSE3; |
| } |
| } |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| ARGBToUVRow(src_argb, src_stride_argb, dst_u, dst_v, width); |
| ARGBToYRow(src_argb, dst_y, width); |
| ARGBToYRow(src_argb + src_stride_argb, dst_y + dst_stride_y, width); |
| src_argb += src_stride_argb * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| ARGBToUVRow(src_argb, 0, dst_u, dst_v, width); |
| ARGBToYRow(src_argb, dst_y, width); |
| } |
| return 0; |
| } |
| |
| LIBYUV_API |
| int BGRAToI420(const uint8* src_bgra, int src_stride_bgra, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_bgra || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_bgra = src_bgra + (height - 1) * src_stride_bgra; |
| src_stride_bgra = -src_stride_bgra; |
| } |
| void (*BGRAToYRow)(const uint8* src_bgra, uint8* dst_y, int pix); |
| void (*BGRAToUVRow)(const uint8* src_bgra0, int src_stride_bgra, |
| uint8* dst_u, uint8* dst_v, int width); |
| |
| BGRAToYRow = BGRAToYRow_C; |
| BGRAToUVRow = BGRAToUVRow_C; |
| #if defined(HAS_BGRATOYROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3)) { |
| if (width > 16) { |
| BGRAToUVRow = BGRAToUVRow_Any_SSSE3; |
| BGRAToYRow = BGRAToYRow_Any_SSSE3; |
| } |
| if (IS_ALIGNED(width, 16)) { |
| BGRAToUVRow = BGRAToUVRow_Unaligned_SSSE3; |
| BGRAToYRow = BGRAToYRow_Unaligned_SSSE3; |
| if (IS_ALIGNED(src_bgra, 16) && IS_ALIGNED(src_stride_bgra, 16)) { |
| BGRAToUVRow = BGRAToUVRow_SSSE3; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| BGRAToYRow = BGRAToYRow_SSSE3; |
| } |
| } |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| BGRAToUVRow(src_bgra, src_stride_bgra, dst_u, dst_v, width); |
| BGRAToYRow(src_bgra, dst_y, width); |
| BGRAToYRow(src_bgra + src_stride_bgra, dst_y + dst_stride_y, width); |
| src_bgra += src_stride_bgra * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| BGRAToUVRow(src_bgra, 0, dst_u, dst_v, width); |
| BGRAToYRow(src_bgra, dst_y, width); |
| } |
| return 0; |
| } |
| |
| LIBYUV_API |
| int ABGRToI420(const uint8* src_abgr, int src_stride_abgr, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_abgr || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_abgr = src_abgr + (height - 1) * src_stride_abgr; |
| src_stride_abgr = -src_stride_abgr; |
| } |
| void (*ABGRToYRow)(const uint8* src_abgr, uint8* dst_y, int pix); |
| void (*ABGRToUVRow)(const uint8* src_abgr0, int src_stride_abgr, |
| uint8* dst_u, uint8* dst_v, int width); |
| |
| ABGRToYRow = ABGRToYRow_C; |
| ABGRToUVRow = ABGRToUVRow_C; |
| #if defined(HAS_ABGRTOYROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3)) { |
| if (width > 16) { |
| ABGRToUVRow = ABGRToUVRow_Any_SSSE3; |
| ABGRToYRow = ABGRToYRow_Any_SSSE3; |
| } |
| if (IS_ALIGNED(width, 16)) { |
| ABGRToUVRow = ABGRToUVRow_Unaligned_SSSE3; |
| ABGRToYRow = ABGRToYRow_Unaligned_SSSE3; |
| if (IS_ALIGNED(src_abgr, 16) && IS_ALIGNED(src_stride_abgr, 16)) { |
| ABGRToUVRow = ABGRToUVRow_SSSE3; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| ABGRToYRow = ABGRToYRow_SSSE3; |
| } |
| } |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| ABGRToUVRow(src_abgr, src_stride_abgr, dst_u, dst_v, width); |
| ABGRToYRow(src_abgr, dst_y, width); |
| ABGRToYRow(src_abgr + src_stride_abgr, dst_y + dst_stride_y, width); |
| src_abgr += src_stride_abgr * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| ABGRToUVRow(src_abgr, 0, dst_u, dst_v, width); |
| ABGRToYRow(src_abgr, dst_y, width); |
| } |
| return 0; |
| } |
| |
| LIBYUV_API |
| int RGBAToI420(const uint8* src_rgba, int src_stride_rgba, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (!src_rgba || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_rgba = src_rgba + (height - 1) * src_stride_rgba; |
| src_stride_rgba = -src_stride_rgba; |
| } |
| void (*RGBAToYRow)(const uint8* src_rgba, uint8* dst_y, int pix); |
| void (*RGBAToUVRow)(const uint8* src_rgba0, int src_stride_rgba, |
| uint8* dst_u, uint8* dst_v, int width); |
| |
| RGBAToYRow = RGBAToYRow_C; |
| RGBAToUVRow = RGBAToUVRow_C; |
| #if defined(HAS_RGBATOYROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3)) { |
| if (width > 16) { |
| RGBAToUVRow = RGBAToUVRow_Any_SSSE3; |
| RGBAToYRow = RGBAToYRow_Any_SSSE3; |
| } |
| if (IS_ALIGNED(width, 16)) { |
| RGBAToUVRow = RGBAToUVRow_Unaligned_SSSE3; |
| RGBAToYRow = RGBAToYRow_Unaligned_SSSE3; |
| if (IS_ALIGNED(src_rgba, 16) && IS_ALIGNED(src_stride_rgba, 16)) { |
| RGBAToUVRow = RGBAToUVRow_SSSE3; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| RGBAToYRow = RGBAToYRow_SSSE3; |
| } |
| } |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| RGBAToUVRow(src_rgba, src_stride_rgba, dst_u, dst_v, width); |
| RGBAToYRow(src_rgba, dst_y, width); |
| RGBAToYRow(src_rgba + src_stride_rgba, dst_y + dst_stride_y, width); |
| src_rgba += src_stride_rgba * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| RGBAToUVRow(src_rgba, 0, dst_u, dst_v, width); |
| RGBAToYRow(src_rgba, dst_y, width); |
| } |
| return 0; |
| } |
| |
| LIBYUV_API |
| int RGB24ToI420(const uint8* src_rgb24, int src_stride_rgb24, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (width * 4 > kMaxStride) { // Row buffer is required. |
| return -1; |
| } else if (!src_rgb24 || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_rgb24 = src_rgb24 + (height - 1) * src_stride_rgb24; |
| src_stride_rgb24 = -src_stride_rgb24; |
| } |
| SIMD_ALIGNED(uint8 row[kMaxStride * 2]); |
| void (*RGB24ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix); |
| |
| RGB24ToARGBRow = RGB24ToARGBRow_C; |
| #if defined(HAS_RGB24TOARGBROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3) && |
| TestReadSafe(src_rgb24, src_stride_rgb24, width, height, 3, 48)) { |
| RGB24ToARGBRow = RGB24ToARGBRow_SSSE3; |
| } |
| #endif |
| |
| void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix); |
| void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, |
| uint8* dst_u, uint8* dst_v, int width); |
| |
| ARGBToYRow = ARGBToYRow_C; |
| ARGBToUVRow = ARGBToUVRow_C; |
| #if defined(HAS_ARGBTOYROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3)) { |
| if (width > 16) { |
| ARGBToUVRow = ARGBToUVRow_Any_SSSE3; |
| } |
| ARGBToYRow = ARGBToYRow_Any_SSSE3; |
| if (IS_ALIGNED(width, 16)) { |
| ARGBToUVRow = ARGBToUVRow_SSSE3; |
| ARGBToYRow = ARGBToYRow_Unaligned_SSSE3; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| ARGBToYRow = ARGBToYRow_SSSE3; |
| } |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| RGB24ToARGBRow(src_rgb24, row, width); |
| RGB24ToARGBRow(src_rgb24 + src_stride_rgb24, row + kMaxStride, width); |
| ARGBToUVRow(row, kMaxStride, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| ARGBToYRow(row + kMaxStride, dst_y + dst_stride_y, width); |
| src_rgb24 += src_stride_rgb24 * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| RGB24ToARGBRow_C(src_rgb24, row, width); |
| ARGBToUVRow(row, 0, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| } |
| return 0; |
| } |
| |
| LIBYUV_API |
| int RAWToI420(const uint8* src_raw, int src_stride_raw, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (width * 4 > kMaxStride) { // Row buffer is required. |
| return -1; |
| } else if (!src_raw || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_raw = src_raw + (height - 1) * src_stride_raw; |
| src_stride_raw = -src_stride_raw; |
| } |
| SIMD_ALIGNED(uint8 row[kMaxStride * 2]); |
| void (*RAWToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix); |
| |
| RAWToARGBRow = RAWToARGBRow_C; |
| #if defined(HAS_RAWTOARGBROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3) && |
| TestReadSafe(src_raw, src_stride_raw, width, height, 3, 48)) { |
| RAWToARGBRow = RAWToARGBRow_SSSE3; |
| } |
| #endif |
| |
| void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix); |
| void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, |
| uint8* dst_u, uint8* dst_v, int width); |
| |
| ARGBToYRow = ARGBToYRow_C; |
| ARGBToUVRow = ARGBToUVRow_C; |
| #if defined(HAS_ARGBTOYROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3)) { |
| if (width > 16) { |
| ARGBToUVRow = ARGBToUVRow_Any_SSSE3; |
| } |
| ARGBToYRow = ARGBToYRow_Any_SSSE3; |
| if (IS_ALIGNED(width, 16)) { |
| ARGBToUVRow = ARGBToUVRow_SSSE3; |
| ARGBToYRow = ARGBToYRow_Unaligned_SSSE3; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| ARGBToYRow = ARGBToYRow_SSSE3; |
| } |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| RAWToARGBRow(src_raw, row, width); |
| RAWToARGBRow(src_raw + src_stride_raw, row + kMaxStride, width); |
| ARGBToUVRow(row, kMaxStride, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| ARGBToYRow(row + kMaxStride, dst_y + dst_stride_y, width); |
| src_raw += src_stride_raw * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| RAWToARGBRow_C(src_raw, row, width); |
| ARGBToUVRow(row, 0, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| } |
| return 0; |
| } |
| |
| LIBYUV_API |
| int RGB565ToI420(const uint8* src_rgb565, int src_stride_rgb565, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (width * 4 > kMaxStride) { // Row buffer is required. |
| return -1; |
| } else if (!src_rgb565 || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_rgb565 = src_rgb565 + (height - 1) * src_stride_rgb565; |
| src_stride_rgb565 = -src_stride_rgb565; |
| } |
| SIMD_ALIGNED(uint8 row[kMaxStride * 2]); |
| void (*RGB565ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix); |
| |
| RGB565ToARGBRow = RGB565ToARGBRow_C; |
| #if defined(HAS_RGB565TOARGBROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| TestReadSafe(src_rgb565, src_stride_rgb565, width, height, 2, 16)) { |
| RGB565ToARGBRow = RGB565ToARGBRow_SSE2; |
| } |
| #endif |
| |
| void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix); |
| void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, |
| uint8* dst_u, uint8* dst_v, int width); |
| |
| ARGBToYRow = ARGBToYRow_C; |
| ARGBToUVRow = ARGBToUVRow_C; |
| #if defined(HAS_ARGBTOYROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3)) { |
| if (width > 16) { |
| ARGBToUVRow = ARGBToUVRow_Any_SSSE3; |
| } |
| ARGBToYRow = ARGBToYRow_Any_SSSE3; |
| if (IS_ALIGNED(width, 16)) { |
| ARGBToUVRow = ARGBToUVRow_SSSE3; |
| ARGBToYRow = ARGBToYRow_Unaligned_SSSE3; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| ARGBToYRow = ARGBToYRow_SSSE3; |
| } |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| RGB565ToARGBRow(src_rgb565, row, width); |
| RGB565ToARGBRow(src_rgb565 + src_stride_rgb565, row + kMaxStride, width); |
| ARGBToUVRow(row, kMaxStride, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| ARGBToYRow(row + kMaxStride, dst_y + dst_stride_y, width); |
| src_rgb565 += src_stride_rgb565 * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| RGB565ToARGBRow_C(src_rgb565, row, width); |
| ARGBToUVRow(row, 0, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| } |
| return 0; |
| } |
| |
| LIBYUV_API |
| int ARGB1555ToI420(const uint8* src_argb1555, int src_stride_argb1555, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (width * 4 > kMaxStride) { // Row buffer is required. |
| return -1; |
| } else if (!src_argb1555 || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_argb1555 = src_argb1555 + (height - 1) * src_stride_argb1555; |
| src_stride_argb1555 = -src_stride_argb1555; |
| } |
| SIMD_ALIGNED(uint8 row[kMaxStride * 2]); |
| void (*ARGB1555ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix); |
| |
| ARGB1555ToARGBRow = ARGB1555ToARGBRow_C; |
| #if defined(HAS_ARGB1555TOARGBROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| TestReadSafe(src_argb1555, src_stride_argb1555, width, height, 2, 16)) { |
| ARGB1555ToARGBRow = ARGB1555ToARGBRow_SSE2; |
| } |
| #endif |
| |
| void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix); |
| void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, |
| uint8* dst_u, uint8* dst_v, int width); |
| |
| ARGBToYRow = ARGBToYRow_C; |
| ARGBToUVRow = ARGBToUVRow_C; |
| #if defined(HAS_ARGBTOYROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3)) { |
| if (width > 16) { |
| ARGBToUVRow = ARGBToUVRow_Any_SSSE3; |
| } |
| ARGBToYRow = ARGBToYRow_Any_SSSE3; |
| if (IS_ALIGNED(width, 16)) { |
| ARGBToUVRow = ARGBToUVRow_SSSE3; |
| ARGBToYRow = ARGBToYRow_Unaligned_SSSE3; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| ARGBToYRow = ARGBToYRow_SSSE3; |
| } |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| ARGB1555ToARGBRow(src_argb1555, row, width); |
| ARGB1555ToARGBRow(src_argb1555 + src_stride_argb1555, |
| row + kMaxStride, width); |
| ARGBToUVRow(row, kMaxStride, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| ARGBToYRow(row + kMaxStride, dst_y + dst_stride_y, width); |
| src_argb1555 += src_stride_argb1555 * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| ARGB1555ToARGBRow_C(src_argb1555, row, width); |
| ARGBToUVRow(row, 0, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| } |
| return 0; |
| } |
| |
| LIBYUV_API |
| int ARGB4444ToI420(const uint8* src_argb4444, int src_stride_argb4444, |
| uint8* dst_y, int dst_stride_y, |
| uint8* dst_u, int dst_stride_u, |
| uint8* dst_v, int dst_stride_v, |
| int width, int height) { |
| if (width * 4 > kMaxStride) { // Row buffer is required. |
| return -1; |
| } else if (!src_argb4444 || |
| !dst_y || !dst_u || !dst_v || |
| width <= 0 || height == 0) { |
| return -1; |
| } |
| // Negative height means invert the image. |
| if (height < 0) { |
| height = -height; |
| src_argb4444 = src_argb4444 + (height - 1) * src_stride_argb4444; |
| src_stride_argb4444 = -src_stride_argb4444; |
| } |
| SIMD_ALIGNED(uint8 row[kMaxStride * 2]); |
| void (*ARGB4444ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix); |
| |
| ARGB4444ToARGBRow = ARGB4444ToARGBRow_C; |
| #if defined(HAS_ARGB4444TOARGBROW_SSE2) |
| if (TestCpuFlag(kCpuHasSSE2) && |
| TestReadSafe(src_argb4444, src_stride_argb4444, width, height, 2, 16)) { |
| ARGB4444ToARGBRow = ARGB4444ToARGBRow_SSE2; |
| } |
| #endif |
| |
| void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix); |
| void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, |
| uint8* dst_u, uint8* dst_v, int width); |
| |
| ARGBToYRow = ARGBToYRow_C; |
| ARGBToUVRow = ARGBToUVRow_C; |
| #if defined(HAS_ARGBTOYROW_SSSE3) |
| if (TestCpuFlag(kCpuHasSSSE3)) { |
| if (width > 16) { |
| ARGBToUVRow = ARGBToUVRow_Any_SSSE3; |
| } |
| ARGBToYRow = ARGBToYRow_Any_SSSE3; |
| if (IS_ALIGNED(width, 16)) { |
| ARGBToUVRow = ARGBToUVRow_SSSE3; |
| ARGBToYRow = ARGBToYRow_Unaligned_SSSE3; |
| if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) { |
| ARGBToYRow = ARGBToYRow_SSSE3; |
| } |
| } |
| } |
| #endif |
| |
| for (int y = 0; y < height - 1; y += 2) { |
| ARGB4444ToARGBRow(src_argb4444, row, width); |
| ARGB4444ToARGBRow(src_argb4444 + src_stride_argb4444, |
| row + kMaxStride, width); |
| ARGBToUVRow(row, kMaxStride, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| ARGBToYRow(row + kMaxStride, dst_y + dst_stride_y, width); |
| src_argb4444 += src_stride_argb4444 * 2; |
| dst_y += dst_stride_y * 2; |
| dst_u += dst_stride_u; |
| dst_v += dst_stride_v; |
| } |
| if (height & 1) { |
| ARGB4444ToARGBRow_C(src_argb4444, row, width); |
| ARGBToUVRow(row, 0, dst_u, dst_v, width); |
| ARGBToYRow(row, dst_y, width); |
| } |
| return 0; |
| } |
| |
| #ifdef HAVE_JPEG |
| struct I420Buffers { |
| uint8* y; |
| int y_stride; |
| uint8* u; |
| int u_stride; |
| uint8* v; |
| int v_stride; |
| int w; |
| int h; |
| }; |
| |
| static void JpegCopyI420(void* opaque, |
| const uint8* const* data, |
| const int* strides, |
| int rows) { |
| I420Buffers* dest = static_cast<I420Buffers*>(opaque); |
| I420Copy(data[0], strides[0], |
| data[1], strides[1], |
| data[2], strides[2], |
| dest->y, dest->y_stride, |
| dest->u, dest->u_stride, |
| dest->v, dest->v_stride, |
| dest->w, rows); |
| dest->y += rows * dest->y_stride; |
| dest->u += ((rows + 1) >> 1) * dest->u_stride; |
| dest->v += ((rows + 1) >> 1) * dest->v_stride; |
| dest->h -= rows; |
| } |
| |
| static void JpegI422ToI420(void* opaque, |
| const uint8* const* data, |
| const int* strides, |
| int rows) { |
| I420Buffers* dest = static_cast<I420Buffers*>(opaque); |
| I422ToI420(data[0], strides[0], |
| data[1], strides[1], |
| data[2], strides[2], |
| dest->y, dest->y_stride, |
| dest->u, dest->u_stride, |
| dest->v, dest->v_stride, |
| dest->w, rows); |
| dest->y += rows * dest->y_stride; |
| dest->u += ((rows + 1) >> 1) * dest->u_stride; |
| dest->v += ((rows + 1) >> 1) * dest->v_stride; |
| dest->h -= rows; |
| } |
| |
| static void JpegI444ToI420(void* opaque, |
| const uint8* const* data, |
| const int* strides, |
| int rows) { |
| I420Buffers* dest = static_cast<I420Buffers*>(opaque); |
| I444ToI420(data[0], strides[0], |
| data[1], strides[1], |
| data[2], strides[2], |
| dest->y, dest->y_stride, |
| dest->u, dest->u_stride, |
| dest->v, dest->v_stride, |
| dest->w, rows); |
| dest->y += rows * dest->y_stride; |
| dest->u += ((rows + 1) >> 1) * dest->u_stride; |
| dest->v += ((rows + 1) >> 1) * dest->v_stride; |
| dest->h -= rows; |
| } |
| |
| static void JpegI411ToI420(void* opaque, |
| const uint8* const* data, |
| const int* strides, |
| int rows) { |
| I420Buffers* dest = static_cast<I420Buffers*>(opaque); |
| I411ToI420(data[0], strides[0], |
| data[1], strides[1], |
| data[2], strides[2], |
| dest->y, dest->y_stride, |
| dest->u, dest->u_stride, |
| dest->v, dest->v_stride, |
| dest->w, rows); |
| dest->y += rows * dest->y_stride; |
| dest->u += ((rows + 1) >> 1) * dest->u_stride; |
| dest->v += ((rows + 1) >> 1) * dest->v_stride; |
| dest->h -= rows; |
| } |
| |
| static void JpegI400ToI420(void* opaque, |
| const uint8* const* data, |
| const int* strides, |
| int rows) { |
| I420Buffers* dest = static_cast<I420Buffers*>(opaque); |
| I400ToI420(data[0], strides[0], |
| dest->y, dest->y_stride, |
| dest->u, dest->u_stride, |
| dest->v, dest->v_stride, |
| dest->w, rows); |
| dest->y += rows * dest->y_stride; |
| dest->u += ((rows + 1) >> 1) * dest->u_stride; |
| dest->v += ((rows + 1) >> 1) * dest->v_stride; |
| dest->h -= rows; |
| } |
| |
| // MJPG (Motion JPeg) to I420 |
| // TODO(fbarchard): review w and h requirement. dw and dh may be enough. |
| LIBYUV_API |
| int MJPGToI420(const uint8* sample, |
| size_t sample_size, |
| uint8* y, int y_stride, |
| uint8* u, int u_stride, |
| uint8* v, int v_stride, |
| int w, int h, |
| int dw, int dh) { |
| if (sample_size == kUnknownDataSize) { |
| // ERROR: MJPEG frame size unknown |
| return -1; |
| } |
| |
| // TODO(fbarchard): Port to C |
| MJpegDecoder mjpeg_decoder; |
| bool ret = mjpeg_decoder.LoadFrame(sample, sample_size); |
| if (ret && (mjpeg_decoder.GetWidth() != w || |
| mjpeg_decoder.GetHeight() != h)) { |
| // ERROR: MJPEG frame has unexpected dimensions |
| mjpeg_decoder.UnloadFrame(); |
| return 1; // runtime failure |
| } |
| if (ret) { |
| I420Buffers bufs = { y, y_stride, u, u_stride, v, v_stride, dw, dh }; |
| // YUV420 |
| if (mjpeg_decoder.GetColorSpace() == |
| MJpegDecoder::kColorSpaceYCbCr && |
| mjpeg_decoder.GetNumComponents() == 3 && |
| mjpeg_decoder.GetVertSampFactor(0) == 2 && |
| mjpeg_decoder.GetHorizSampFactor(0) == 2 && |
| mjpeg_decoder.GetVertSampFactor(1) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(1) == 1 && |
| mjpeg_decoder.GetVertSampFactor(2) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(2) == 1) { |
| ret = mjpeg_decoder.DecodeToCallback(&JpegCopyI420, &bufs, dw, dh); |
| // YUV422 |
| } else if (mjpeg_decoder.GetColorSpace() == |
| MJpegDecoder::kColorSpaceYCbCr && |
| mjpeg_decoder.GetNumComponents() == 3 && |
| mjpeg_decoder.GetVertSampFactor(0) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(0) == 2 && |
| mjpeg_decoder.GetVertSampFactor(1) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(1) == 1 && |
| mjpeg_decoder.GetVertSampFactor(2) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(2) == 1) { |
| ret = mjpeg_decoder.DecodeToCallback(&JpegI422ToI420, &bufs, dw, dh); |
| // YUV444 |
| } else if (mjpeg_decoder.GetColorSpace() == |
| MJpegDecoder::kColorSpaceYCbCr && |
| mjpeg_decoder.GetNumComponents() == 3 && |
| mjpeg_decoder.GetVertSampFactor(0) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(0) == 1 && |
| mjpeg_decoder.GetVertSampFactor(1) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(1) == 1 && |
| mjpeg_decoder.GetVertSampFactor(2) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(2) == 1) { |
| ret = mjpeg_decoder.DecodeToCallback(&JpegI444ToI420, &bufs, dw, dh); |
| // YUV411 |
| } else if (mjpeg_decoder.GetColorSpace() == |
| MJpegDecoder::kColorSpaceYCbCr && |
| mjpeg_decoder.GetNumComponents() == 3 && |
| mjpeg_decoder.GetVertSampFactor(0) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(0) == 4 && |
| mjpeg_decoder.GetVertSampFactor(1) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(1) == 1 && |
| mjpeg_decoder.GetVertSampFactor(2) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(2) == 1) { |
| ret = mjpeg_decoder.DecodeToCallback(&JpegI411ToI420, &bufs, dw, dh); |
| // YUV400 |
| } else if (mjpeg_decoder.GetColorSpace() == |
| MJpegDecoder::kColorSpaceGrayscale && |
| mjpeg_decoder.GetNumComponents() == 1 && |
| mjpeg_decoder.GetVertSampFactor(0) == 1 && |
| mjpeg_decoder.GetHorizSampFactor(0) == 1) { |
| ret = mjpeg_decoder.DecodeToCallback(&JpegI400ToI420, &bufs, dw, dh); |
| } else { |
| // TODO(fbarchard): Implement conversion for any other colorspace/sample |
| // factors that occur in practice. 411 is supported by libjpeg |
| // ERROR: Unable to convert MJPEG frame because format is not supported |
| mjpeg_decoder.UnloadFrame(); |
| return 1; |
| } |
| } |
| return 0; |
| } |
| #endif |
| |
| // Convert camera sample to I420 with cropping, rotation and vertical flip. |
| // src_width is used for source stride computation |
| // src_height is used to compute location of planes, and indicate inversion |
| // sample_size is measured in bytes and is the size of the frame. |
| // With MJPEG it is the compressed size of the frame. |
| LIBYUV_API |
| int ConvertToI420(const uint8* sample, |
| #ifdef HAVE_JPEG |
| size_t sample_size, |
| #else |
| size_t /* sample_size */, |
| #endif |
| uint8* y, int y_stride, |
| uint8* u, int u_stride, |
| uint8* v, int v_stride, |
| int crop_x, int crop_y, |
| int src_width, int src_height, |
| int dst_width, int dst_height, |
| RotationMode rotation, |
| uint32 format) { |
| if (!y || !u || !v || !sample || |
| src_width <= 0 || dst_width <= 0 || |
| src_height == 0 || dst_height == 0) { |
| return -1; |
| } |
| int aligned_src_width = (src_width + 1) & ~1; |
| const uint8* src; |
| const uint8* src_uv; |
| int abs_src_height = (src_height < 0) ? -src_height : src_height; |
| int inv_dst_height = (dst_height < 0) ? -dst_height : dst_height; |
| if (src_height < 0) { |
| inv_dst_height = -inv_dst_height; |
| } |
| int r = 0; |
| |
| // One pass rotation is available for some formats. For the rest, convert |
| // to I420 (with optional vertical flipping) into a temporary I420 buffer, |
| // and then rotate the I420 to the final destination buffer. |
| // For in-place conversion, if destination y is same as source sample, |
| // also enable temporary buffer. |
| bool need_buf = (rotation && format != FOURCC_I420 && |
| format != FOURCC_NV12 && format != FOURCC_NV21 && |
| format != FOURCC_YU12 && format != FOURCC_YV12) || y == sample; |
| uint8* tmp_y = y; |
| uint8* tmp_u = u; |
| uint8* tmp_v = v; |
| int tmp_y_stride = y_stride; |
| int tmp_u_stride = u_stride; |
| int tmp_v_stride = v_stride; |
| uint8* buf = NULL; |
| int abs_dst_height = (dst_height < 0) ? -dst_height : dst_height; |
| if (need_buf) { |
| int y_size = dst_width * abs_dst_height; |
| int uv_size = ((dst_width + 1) / 2) * ((abs_dst_height + 1) / 2); |
| buf = new uint8[y_size + uv_size * 2]; |
| if (!buf) { |
| return 1; // Out of memory runtime error. |
| } |
| y = buf; |
| u = y + y_size; |
| v = u + uv_size; |
| y_stride = dst_width; |
| u_stride = v_stride = ((dst_width + 1) / 2); |
| } |
| |
| switch (format) { |
| // Single plane formats |
| case FOURCC_YUY2: |
| src = sample + (aligned_src_width * crop_y + crop_x) * 2; |
| r = YUY2ToI420(src, aligned_src_width * 2, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_UYVY: |
| src = sample + (aligned_src_width * crop_y + crop_x) * 2; |
| r = UYVYToI420(src, aligned_src_width * 2, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_V210: |
| // stride is multiple of 48 pixels (128 bytes). |
| // pixels come in groups of 6 = 16 bytes |
| src = sample + (aligned_src_width + 47) / 48 * 128 * crop_y + |
| crop_x / 6 * 16; |
| r = V210ToI420(src, (aligned_src_width + 47) / 48 * 128, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_24BG: |
| src = sample + (src_width * crop_y + crop_x) * 3; |
| r = RGB24ToI420(src, src_width * 3, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_RAW: |
| src = sample + (src_width * crop_y + crop_x) * 3; |
| r = RAWToI420(src, src_width * 3, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_ARGB: |
| src = sample + (src_width * crop_y + crop_x) * 4; |
| r = ARGBToI420(src, src_width * 4, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_BGRA: |
| src = sample + (src_width * crop_y + crop_x) * 4; |
| r = BGRAToI420(src, src_width * 4, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_ABGR: |
| src = sample + (src_width * crop_y + crop_x) * 4; |
| r = ABGRToI420(src, src_width * 4, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_RGBA: |
| src = sample + (src_width * crop_y + crop_x) * 4; |
| r = RGBAToI420(src, src_width * 4, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_RGBP: |
| src = sample + (src_width * crop_y + crop_x) * 2; |
| r = RGB565ToI420(src, src_width * 2, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_RGBO: |
| src = sample + (src_width * crop_y + crop_x) * 2; |
| r = ARGB1555ToI420(src, src_width * 2, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_R444: |
| src = sample + (src_width * crop_y + crop_x) * 2; |
| r = ARGB4444ToI420(src, src_width * 2, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| // TODO(fbarchard): Support cropping Bayer by odd numbers |
| // by adjusting fourcc. |
| case FOURCC_BGGR: |
| src = sample + (src_width * crop_y + crop_x); |
| r = BayerBGGRToI420(src, src_width, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| |
| case FOURCC_GBRG: |
| src = sample + (src_width * crop_y + crop_x); |
| r = BayerGBRGToI420(src, src_width, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| |
| case FOURCC_GRBG: |
| src = sample + (src_width * crop_y + crop_x); |
| r = BayerGRBGToI420(src, src_width, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| |
| case FOURCC_RGGB: |
| src = sample + (src_width * crop_y + crop_x); |
| r = BayerRGGBToI420(src, src_width, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| |
| case FOURCC_I400: |
| src = sample + src_width * crop_y + crop_x; |
| r = I400ToI420(src, src_width, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| |
| // Biplanar formats |
| case FOURCC_NV12: |
| src = sample + (src_width * crop_y + crop_x); |
| src_uv = sample + aligned_src_width * (src_height + crop_y / 2) + crop_x; |
| r = NV12ToI420Rotate(src, src_width, |
| src_uv, aligned_src_width, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height, rotation); |
| break; |
| case FOURCC_NV21: |
| src = sample + (src_width * crop_y + crop_x); |
| src_uv = sample + aligned_src_width * (src_height + crop_y / 2) + crop_x; |
| // Call NV12 but with u and v parameters swapped. |
| r = NV12ToI420Rotate(src, src_width, |
| src_uv, aligned_src_width, |
| y, y_stride, |
| v, v_stride, |
| u, u_stride, |
| dst_width, inv_dst_height, rotation); |
| break; |
| case FOURCC_M420: |
| src = sample + (src_width * crop_y) * 12 / 8 + crop_x; |
| r = M420ToI420(src, src_width, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| case FOURCC_Q420: |
| src = sample + (src_width + aligned_src_width * 2) * crop_y + crop_x; |
| src_uv = sample + (src_width + aligned_src_width * 2) * crop_y + |
| src_width + crop_x * 2; |
| r = Q420ToI420(src, src_width * 3, |
| src_uv, src_width * 3, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| // Triplanar formats |
| case FOURCC_I420: |
| case FOURCC_YU12: |
| case FOURCC_YV12: { |
| const uint8* src_y = sample + (src_width * crop_y + crop_x); |
| const uint8* src_u; |
| const uint8* src_v; |
| int halfwidth = (src_width + 1) / 2; |
| int halfheight = (abs_src_height + 1) / 2; |
| if (format == FOURCC_YV12) { |
| src_v = sample + src_width * abs_src_height + |
| (halfwidth * crop_y + crop_x) / 2; |
| src_u = sample + src_width * abs_src_height + |
| halfwidth * (halfheight + crop_y / 2) + crop_x / 2; |
| } else { |
| src_u = sample + src_width * abs_src_height + |
| (halfwidth * crop_y + crop_x) / 2; |
| src_v = sample + src_width * abs_src_height + |
| halfwidth * (halfheight + crop_y / 2) + crop_x / 2; |
| } |
| r = I420Rotate(src_y, src_width, |
| src_u, halfwidth, |
| src_v, halfwidth, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height, rotation); |
| break; |
| } |
| case FOURCC_I422: |
| case FOURCC_YV16: { |
| const uint8* src_y = sample + src_width * crop_y + crop_x; |
| const uint8* src_u; |
| const uint8* src_v; |
| int halfwidth = (src_width + 1) / 2; |
| if (format == FOURCC_YV16) { |
| src_v = sample + src_width * abs_src_height + |
| halfwidth * crop_y + crop_x / 2; |
| src_u = sample + src_width * abs_src_height + |
| halfwidth * (abs_src_height + crop_y) + crop_x / 2; |
| } else { |
| src_u = sample + src_width * abs_src_height + |
| halfwidth * crop_y + crop_x / 2; |
| src_v = sample + src_width * abs_src_height + |
| halfwidth * (abs_src_height + crop_y) + crop_x / 2; |
| } |
| r = I422ToI420(src_y, src_width, |
| src_u, halfwidth, |
| src_v, halfwidth, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| } |
| case FOURCC_I444: |
| case FOURCC_YV24: { |
| const uint8* src_y = sample + src_width * crop_y + crop_x; |
| const uint8* src_u; |
| const uint8* src_v; |
| if (format == FOURCC_YV24) { |
| src_v = sample + src_width * (abs_src_height + crop_y) + crop_x; |
| src_u = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x; |
| } else { |
| src_u = sample + src_width * (abs_src_height + crop_y) + crop_x; |
| src_v = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x; |
| } |
| r = I444ToI420(src_y, src_width, |
| src_u, src_width, |
| src_v, src_width, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| } |
| case FOURCC_I411: { |
| int quarterwidth = (src_width + 3) / 4; |
| const uint8* src_y = sample + src_width * crop_y + crop_x; |
| const uint8* src_u = sample + src_width * abs_src_height + |
| quarterwidth * crop_y + crop_x / 4; |
| const uint8* src_v = sample + src_width * abs_src_height + |
| quarterwidth * (abs_src_height + crop_y) + crop_x / 4; |
| r = I411ToI420(src_y, src_width, |
| src_u, quarterwidth, |
| src_v, quarterwidth, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| dst_width, inv_dst_height); |
| break; |
| } |
| #ifdef HAVE_JPEG |
| case FOURCC_MJPG: |
| r = MJPGToI420(sample, sample_size, |
| y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| src_width, abs_src_height, dst_width, inv_dst_height); |
| break; |
| #endif |
| default: |
| r = -1; // unknown fourcc - return failure code. |
| } |
| |
| if (need_buf) { |
| if (!r) { |
| r = I420Rotate(y, y_stride, |
| u, u_stride, |
| v, v_stride, |
| tmp_y, tmp_y_stride, |
| tmp_u, tmp_u_stride, |
| tmp_v, tmp_v_stride, |
| dst_width, abs_dst_height, rotation); |
| } |
| delete buf; |
| } |
| |
| return r; |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| } // namespace libyuv |
| #endif |
