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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This webpage shows layout of YV12 and other YUV formats | 5 // This webpage shows layout of YV12 and other YUV formats |
6 // http://www.fourcc.org/yuv.php | 6 // http://www.fourcc.org/yuv.php |
7 // The actual conversion is best described here | 7 // The actual conversion is best described here |
8 // http://en.wikipedia.org/wiki/YUV | 8 // http://en.wikipedia.org/wiki/YUV |
9 // An article on optimizing YUV conversion using tables instead of multiplies | 9 // An article on optimizing YUV conversion using tables instead of multiplies |
10 // http://lestourtereaux.free.fr/papers/data/yuvrgb.pdf | 10 // http://lestourtereaux.free.fr/papers/data/yuvrgb.pdf |
11 // | 11 // |
12 // YV12 is a full plane of Y and a half height, half width chroma planes | 12 // YV12 is a full plane of Y and a half height, half width chroma planes |
13 // YV16 is a full plane of Y and a full height, half width chroma planes | 13 // YV16 is a full plane of Y and a full height, half width chroma planes |
14 // | 14 // |
15 // ARGB pixel format is output, which on little endian is stored as BGRA. | 15 // ARGB pixel format is output, which on little endian is stored as BGRA. |
16 // The alpha is set to 255, allowing the application to use RGBA or RGB32. | 16 // The alpha is set to 255, allowing the application to use RGBA or RGB32. |
17 | 17 |
18 #include "media/base/yuv_convert.h" | 18 #include "media/base/yuv_convert.h" |
19 | 19 |
20 #include <stddef.h> | 20 #include <stddef.h> |
21 | 21 |
22 #include <algorithm> | 22 #include <algorithm> |
23 | 23 |
24 #include "base/cpu.h" | 24 #include "base/cpu.h" |
25 #include "base/lazy_instance.h" | 25 #include "base/lazy_instance.h" |
26 #include "base/logging.h" | 26 #include "base/logging.h" |
27 #include "base/macros.h" | 27 #include "base/macros.h" |
28 #include "base/memory/aligned_memory.h" | 28 #include "base/memory/aligned_memory.h" |
29 #include "base/memory/scoped_ptr.h" | |
30 #include "base/third_party/dynamic_annotations/dynamic_annotations.h" | 29 #include "base/third_party/dynamic_annotations/dynamic_annotations.h" |
31 #include "build/build_config.h" | 30 #include "build/build_config.h" |
32 #include "media/base/simd/convert_rgb_to_yuv.h" | 31 #include "media/base/simd/convert_rgb_to_yuv.h" |
33 #include "media/base/simd/convert_yuv_to_rgb.h" | 32 #include "media/base/simd/convert_yuv_to_rgb.h" |
34 #include "media/base/simd/filter_yuv.h" | 33 #include "media/base/simd/filter_yuv.h" |
35 | 34 |
36 #if defined(ARCH_CPU_X86_FAMILY) | 35 #if defined(ARCH_CPU_X86_FAMILY) |
37 #if defined(COMPILER_MSVC) | 36 #if defined(COMPILER_MSVC) |
38 #include <intrin.h> | 37 #include <intrin.h> |
39 #else | 38 #else |
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736 width, | 735 width, |
737 height, | 736 height, |
738 ystride, | 737 ystride, |
739 uvstride, | 738 uvstride, |
740 astride, | 739 astride, |
741 rgbstride, | 740 rgbstride, |
742 yuv_type); | 741 yuv_type); |
743 } | 742 } |
744 | 743 |
745 } // namespace media | 744 } // namespace media |
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