| /* |
| * Copyright (c) 2012 The WebRTC 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 "common_video/libyuv/include/webrtc_libyuv.h" |
| |
| #include <cstdint> |
| |
| #include "api/video/i420_buffer.h" |
| #include "common_video/include/video_frame_buffer.h" |
| #include "rtc_base/checks.h" |
| #include "third_party/libyuv/include/libyuv.h" |
| |
| namespace webrtc { |
| |
| size_t CalcBufferSize(VideoType type, int width, int height) { |
| RTC_DCHECK_GE(width, 0); |
| RTC_DCHECK_GE(height, 0); |
| size_t buffer_size = 0; |
| switch (type) { |
| case VideoType::kI420: |
| case VideoType::kIYUV: |
| case VideoType::kYV12: { |
| int half_width = (width + 1) >> 1; |
| int half_height = (height + 1) >> 1; |
| buffer_size = width * height + half_width * half_height * 2; |
| break; |
| } |
| case VideoType::kRGB565: |
| case VideoType::kYUY2: |
| case VideoType::kUYVY: |
| buffer_size = width * height * 2; |
| break; |
| case VideoType::kRGB24: |
| buffer_size = width * height * 3; |
| break; |
| case VideoType::kBGRA: |
| case VideoType::kARGB: |
| buffer_size = width * height * 4; |
| break; |
| default: |
| RTC_DCHECK_NOTREACHED(); |
| break; |
| } |
| return buffer_size; |
| } |
| |
| int ExtractBuffer(const rtc::scoped_refptr<I420BufferInterface>& input_frame, |
| size_t size, |
| uint8_t* buffer) { |
| RTC_DCHECK(buffer); |
| if (!input_frame) |
| return -1; |
| int width = input_frame->width(); |
| int height = input_frame->height(); |
| size_t length = CalcBufferSize(VideoType::kI420, width, height); |
| if (size < length) { |
| return -1; |
| } |
| |
| int chroma_width = input_frame->ChromaWidth(); |
| int chroma_height = input_frame->ChromaHeight(); |
| |
| libyuv::I420Copy(input_frame->DataY(), input_frame->StrideY(), |
| input_frame->DataU(), input_frame->StrideU(), |
| input_frame->DataV(), input_frame->StrideV(), buffer, width, |
| buffer + width * height, chroma_width, |
| buffer + width * height + chroma_width * chroma_height, |
| chroma_width, width, height); |
| |
| return static_cast<int>(length); |
| } |
| |
| int ExtractBuffer(const VideoFrame& input_frame, size_t size, uint8_t* buffer) { |
| return ExtractBuffer(input_frame.video_frame_buffer()->ToI420(), size, |
| buffer); |
| } |
| |
| int ConvertVideoType(VideoType video_type) { |
| switch (video_type) { |
| case VideoType::kUnknown: |
| return libyuv::FOURCC_ANY; |
| case VideoType::kI420: |
| return libyuv::FOURCC_I420; |
| case VideoType::kIYUV: // same as VideoType::kYV12 |
| case VideoType::kYV12: |
| return libyuv::FOURCC_YV12; |
| case VideoType::kRGB24: |
| return libyuv::FOURCC_24BG; |
| case VideoType::kRGB565: |
| return libyuv::FOURCC_RGBP; |
| case VideoType::kYUY2: |
| return libyuv::FOURCC_YUY2; |
| case VideoType::kUYVY: |
| return libyuv::FOURCC_UYVY; |
| case VideoType::kMJPEG: |
| return libyuv::FOURCC_MJPG; |
| case VideoType::kARGB: |
| return libyuv::FOURCC_ARGB; |
| case VideoType::kBGRA: |
| return libyuv::FOURCC_BGRA; |
| } |
| RTC_DCHECK_NOTREACHED(); |
| return libyuv::FOURCC_ANY; |
| } |
| |
| int ConvertFromI420(const VideoFrame& src_frame, |
| VideoType dst_video_type, |
| int dst_sample_size, |
| uint8_t* dst_frame) { |
| rtc::scoped_refptr<I420BufferInterface> i420_buffer = |
| src_frame.video_frame_buffer()->ToI420(); |
| return libyuv::ConvertFromI420( |
| i420_buffer->DataY(), i420_buffer->StrideY(), i420_buffer->DataU(), |
| i420_buffer->StrideU(), i420_buffer->DataV(), i420_buffer->StrideV(), |
| dst_frame, dst_sample_size, src_frame.width(), src_frame.height(), |
| ConvertVideoType(dst_video_type)); |
| } |
| |
| rtc::scoped_refptr<I420ABufferInterface> ScaleI420ABuffer( |
| const I420ABufferInterface& buffer, |
| int target_width, |
| int target_height) { |
| rtc::scoped_refptr<I420Buffer> yuv_buffer = |
| I420Buffer::Create(target_width, target_height); |
| yuv_buffer->ScaleFrom(buffer); |
| rtc::scoped_refptr<I420Buffer> axx_buffer = |
| I420Buffer::Create(target_width, target_height); |
| libyuv::ScalePlane(buffer.DataA(), buffer.StrideA(), buffer.width(), |
| buffer.height(), axx_buffer->MutableDataY(), |
| axx_buffer->StrideY(), target_width, target_height, |
| libyuv::kFilterBox); |
| rtc::scoped_refptr<I420ABufferInterface> merged_buffer = WrapI420ABuffer( |
| yuv_buffer->width(), yuv_buffer->height(), yuv_buffer->DataY(), |
| yuv_buffer->StrideY(), yuv_buffer->DataU(), yuv_buffer->StrideU(), |
| yuv_buffer->DataV(), yuv_buffer->StrideV(), axx_buffer->DataY(), |
| axx_buffer->StrideY(), |
| // To keep references alive. |
| [yuv_buffer, axx_buffer] {}); |
| return merged_buffer; |
| } |
| |
| rtc::scoped_refptr<I420BufferInterface> ScaleVideoFrameBuffer( |
| const I420BufferInterface& source, |
| int dst_width, |
| int dst_height) { |
| rtc::scoped_refptr<I420Buffer> scaled_buffer = |
| I420Buffer::Create(dst_width, dst_height); |
| scaled_buffer->ScaleFrom(source); |
| return scaled_buffer; |
| } |
| |
| double I420SSE(const I420BufferInterface& ref_buffer, |
| const I420BufferInterface& test_buffer) { |
| RTC_DCHECK_EQ(ref_buffer.width(), test_buffer.width()); |
| RTC_DCHECK_EQ(ref_buffer.height(), test_buffer.height()); |
| const uint64_t width = test_buffer.width(); |
| const uint64_t height = test_buffer.height(); |
| const uint64_t sse_y = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataY(), ref_buffer.StrideY(), test_buffer.DataY(), |
| test_buffer.StrideY(), width, height); |
| const int width_uv = (width + 1) >> 1; |
| const int height_uv = (height + 1) >> 1; |
| const uint64_t sse_u = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataU(), ref_buffer.StrideU(), test_buffer.DataU(), |
| test_buffer.StrideU(), width_uv, height_uv); |
| const uint64_t sse_v = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataV(), ref_buffer.StrideV(), test_buffer.DataV(), |
| test_buffer.StrideV(), width_uv, height_uv); |
| const double samples = width * height + 2 * (width_uv * height_uv); |
| const double sse = sse_y + sse_u + sse_v; |
| return sse / (samples * 255.0 * 255.0); |
| } |
| |
| // Compute PSNR for an I420A frame (all planes). Can upscale test frame. |
| double I420APSNR(const I420ABufferInterface& ref_buffer, |
| const I420ABufferInterface& test_buffer) { |
| RTC_DCHECK_GE(ref_buffer.width(), test_buffer.width()); |
| RTC_DCHECK_GE(ref_buffer.height(), test_buffer.height()); |
| if ((ref_buffer.width() != test_buffer.width()) || |
| (ref_buffer.height() != test_buffer.height())) { |
| rtc::scoped_refptr<I420ABufferInterface> scaled_buffer = |
| ScaleI420ABuffer(test_buffer, ref_buffer.width(), ref_buffer.height()); |
| return I420APSNR(ref_buffer, *scaled_buffer); |
| } |
| const int width = test_buffer.width(); |
| const int height = test_buffer.height(); |
| const uint64_t sse_y = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataY(), ref_buffer.StrideY(), test_buffer.DataY(), |
| test_buffer.StrideY(), width, height); |
| const int width_uv = (width + 1) >> 1; |
| const int height_uv = (height + 1) >> 1; |
| const uint64_t sse_u = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataU(), ref_buffer.StrideU(), test_buffer.DataU(), |
| test_buffer.StrideU(), width_uv, height_uv); |
| const uint64_t sse_v = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataV(), ref_buffer.StrideV(), test_buffer.DataV(), |
| test_buffer.StrideV(), width_uv, height_uv); |
| const uint64_t sse_a = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataA(), ref_buffer.StrideA(), test_buffer.DataA(), |
| test_buffer.StrideA(), width, height); |
| const uint64_t samples = 2 * (uint64_t)width * (uint64_t)height + |
| 2 * ((uint64_t)width_uv * (uint64_t)height_uv); |
| const uint64_t sse = sse_y + sse_u + sse_v + sse_a; |
| const double psnr = libyuv::SumSquareErrorToPsnr(sse, samples); |
| return (psnr > kPerfectPSNR) ? kPerfectPSNR : psnr; |
| } |
| |
| // Compute PSNR for an I420A frame (all planes) |
| double I420APSNR(const VideoFrame* ref_frame, const VideoFrame* test_frame) { |
| if (!ref_frame || !test_frame) |
| return -1; |
| RTC_DCHECK(ref_frame->video_frame_buffer()->type() == |
| VideoFrameBuffer::Type::kI420A); |
| RTC_DCHECK(test_frame->video_frame_buffer()->type() == |
| VideoFrameBuffer::Type::kI420A); |
| return I420APSNR(*ref_frame->video_frame_buffer()->GetI420A(), |
| *test_frame->video_frame_buffer()->GetI420A()); |
| } |
| |
| // Compute PSNR for an I420 frame (all planes). Can upscale test frame. |
| double I420PSNR(const I420BufferInterface& ref_buffer, |
| const I420BufferInterface& test_buffer) { |
| RTC_DCHECK_GE(ref_buffer.width(), test_buffer.width()); |
| RTC_DCHECK_GE(ref_buffer.height(), test_buffer.height()); |
| if ((ref_buffer.width() != test_buffer.width()) || |
| (ref_buffer.height() != test_buffer.height())) { |
| rtc::scoped_refptr<I420Buffer> scaled_buffer = |
| I420Buffer::Create(ref_buffer.width(), ref_buffer.height()); |
| scaled_buffer->ScaleFrom(test_buffer); |
| return I420PSNR(ref_buffer, *scaled_buffer); |
| } |
| double psnr = libyuv::I420Psnr( |
| ref_buffer.DataY(), ref_buffer.StrideY(), ref_buffer.DataU(), |
| ref_buffer.StrideU(), ref_buffer.DataV(), ref_buffer.StrideV(), |
| test_buffer.DataY(), test_buffer.StrideY(), test_buffer.DataU(), |
| test_buffer.StrideU(), test_buffer.DataV(), test_buffer.StrideV(), |
| test_buffer.width(), test_buffer.height()); |
| // LibYuv sets the max psnr value to 128, we restrict it here. |
| // In case of 0 mse in one frame, 128 can skew the results significantly. |
| return (psnr > kPerfectPSNR) ? kPerfectPSNR : psnr; |
| } |
| |
| // Compute PSNR for an I420 frame (all planes) |
| double I420PSNR(const VideoFrame* ref_frame, const VideoFrame* test_frame) { |
| if (!ref_frame || !test_frame) |
| return -1; |
| return I420PSNR(*ref_frame->video_frame_buffer()->ToI420(), |
| *test_frame->video_frame_buffer()->ToI420()); |
| } |
| |
| double I420WeightedPSNR(const I420BufferInterface& ref_buffer, |
| const I420BufferInterface& test_buffer) { |
| RTC_DCHECK_GE(ref_buffer.width(), test_buffer.width()); |
| RTC_DCHECK_GE(ref_buffer.height(), test_buffer.height()); |
| if ((ref_buffer.width() != test_buffer.width()) || |
| (ref_buffer.height() != test_buffer.height())) { |
| rtc::scoped_refptr<I420Buffer> scaled_ref_buffer = |
| I420Buffer::Create(test_buffer.width(), test_buffer.height()); |
| scaled_ref_buffer->ScaleFrom(ref_buffer); |
| return I420WeightedPSNR(*scaled_ref_buffer, test_buffer); |
| } |
| |
| // Luma. |
| int width_y = test_buffer.width(); |
| int height_y = test_buffer.height(); |
| uint64_t sse_y = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataY(), ref_buffer.StrideY(), test_buffer.DataY(), |
| test_buffer.StrideY(), width_y, height_y); |
| uint64_t num_samples_y = (uint64_t)width_y * (uint64_t)height_y; |
| double psnr_y = libyuv::SumSquareErrorToPsnr(sse_y, num_samples_y); |
| |
| // Chroma. |
| int width_uv = (width_y + 1) >> 1; |
| int height_uv = (height_y + 1) >> 1; |
| uint64_t sse_u = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataU(), ref_buffer.StrideU(), test_buffer.DataU(), |
| test_buffer.StrideU(), width_uv, height_uv); |
| uint64_t num_samples_uv = (uint64_t)width_uv * (uint64_t)height_uv; |
| double psnr_u = libyuv::SumSquareErrorToPsnr(sse_u, num_samples_uv); |
| uint64_t sse_v = libyuv::ComputeSumSquareErrorPlane( |
| ref_buffer.DataV(), ref_buffer.StrideV(), test_buffer.DataV(), |
| test_buffer.StrideV(), width_uv, height_uv); |
| double psnr_v = libyuv::SumSquareErrorToPsnr(sse_v, num_samples_uv); |
| |
| // Weights from Ohm et. al 2012. |
| double psnr_yuv = (6.0 * psnr_y + psnr_u + psnr_v) / 8.0; |
| return (psnr_yuv > kPerfectPSNR) ? kPerfectPSNR : psnr_yuv; |
| } |
| |
| // Compute SSIM for an I420A frame (all planes). Can upscale test frame. |
| double I420ASSIM(const I420ABufferInterface& ref_buffer, |
| const I420ABufferInterface& test_buffer) { |
| RTC_DCHECK_GE(ref_buffer.width(), test_buffer.width()); |
| RTC_DCHECK_GE(ref_buffer.height(), test_buffer.height()); |
| if ((ref_buffer.width() != test_buffer.width()) || |
| (ref_buffer.height() != test_buffer.height())) { |
| rtc::scoped_refptr<I420ABufferInterface> scaled_buffer = |
| ScaleI420ABuffer(test_buffer, ref_buffer.width(), ref_buffer.height()); |
| return I420ASSIM(ref_buffer, *scaled_buffer); |
| } |
| const double yuv_ssim = libyuv::I420Ssim( |
| ref_buffer.DataY(), ref_buffer.StrideY(), ref_buffer.DataU(), |
| ref_buffer.StrideU(), ref_buffer.DataV(), ref_buffer.StrideV(), |
| test_buffer.DataY(), test_buffer.StrideY(), test_buffer.DataU(), |
| test_buffer.StrideU(), test_buffer.DataV(), test_buffer.StrideV(), |
| test_buffer.width(), test_buffer.height()); |
| const double a_ssim = libyuv::CalcFrameSsim( |
| ref_buffer.DataA(), ref_buffer.StrideA(), test_buffer.DataA(), |
| test_buffer.StrideA(), test_buffer.width(), test_buffer.height()); |
| return (yuv_ssim + (a_ssim * 0.8)) / 1.8; |
| } |
| |
| // Compute SSIM for an I420A frame (all planes) |
| double I420ASSIM(const VideoFrame* ref_frame, const VideoFrame* test_frame) { |
| if (!ref_frame || !test_frame) |
| return -1; |
| RTC_DCHECK(ref_frame->video_frame_buffer()->type() == |
| VideoFrameBuffer::Type::kI420A); |
| RTC_DCHECK(test_frame->video_frame_buffer()->type() == |
| VideoFrameBuffer::Type::kI420A); |
| return I420ASSIM(*ref_frame->video_frame_buffer()->GetI420A(), |
| *test_frame->video_frame_buffer()->GetI420A()); |
| } |
| |
| // Compute SSIM for an I420 frame (all planes). Can upscale test_buffer. |
| double I420SSIM(const I420BufferInterface& ref_buffer, |
| const I420BufferInterface& test_buffer) { |
| RTC_DCHECK_GE(ref_buffer.width(), test_buffer.width()); |
| RTC_DCHECK_GE(ref_buffer.height(), test_buffer.height()); |
| if ((ref_buffer.width() != test_buffer.width()) || |
| (ref_buffer.height() != test_buffer.height())) { |
| rtc::scoped_refptr<I420Buffer> scaled_buffer = |
| I420Buffer::Create(ref_buffer.width(), ref_buffer.height()); |
| scaled_buffer->ScaleFrom(test_buffer); |
| return I420SSIM(ref_buffer, *scaled_buffer); |
| } |
| return libyuv::I420Ssim( |
| ref_buffer.DataY(), ref_buffer.StrideY(), ref_buffer.DataU(), |
| ref_buffer.StrideU(), ref_buffer.DataV(), ref_buffer.StrideV(), |
| test_buffer.DataY(), test_buffer.StrideY(), test_buffer.DataU(), |
| test_buffer.StrideU(), test_buffer.DataV(), test_buffer.StrideV(), |
| test_buffer.width(), test_buffer.height()); |
| } |
| |
| double I420SSIM(const VideoFrame* ref_frame, const VideoFrame* test_frame) { |
| if (!ref_frame || !test_frame) |
| return -1; |
| return I420SSIM(*ref_frame->video_frame_buffer()->ToI420(), |
| *test_frame->video_frame_buffer()->ToI420()); |
| } |
| |
| void NV12Scale(uint8_t* tmp_buffer, |
| const uint8_t* src_y, |
| int src_stride_y, |
| const uint8_t* src_uv, |
| int src_stride_uv, |
| int src_width, |
| int src_height, |
| uint8_t* dst_y, |
| int dst_stride_y, |
| uint8_t* dst_uv, |
| int dst_stride_uv, |
| int dst_width, |
| int dst_height) { |
| const int src_chroma_width = (src_width + 1) / 2; |
| const int src_chroma_height = (src_height + 1) / 2; |
| |
| if (src_width == dst_width && src_height == dst_height) { |
| // No scaling. |
| libyuv::CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, src_width, |
| src_height); |
| libyuv::CopyPlane(src_uv, src_stride_uv, dst_uv, dst_stride_uv, |
| src_chroma_width * 2, src_chroma_height); |
| return; |
| } |
| |
| // Scaling. |
| // Allocate temporary memory for spitting UV planes and scaling them. |
| const int dst_chroma_width = (dst_width + 1) / 2; |
| const int dst_chroma_height = (dst_height + 1) / 2; |
| |
| uint8_t* const src_u = tmp_buffer; |
| uint8_t* const src_v = src_u + src_chroma_width * src_chroma_height; |
| uint8_t* const dst_u = src_v + src_chroma_width * src_chroma_height; |
| uint8_t* const dst_v = dst_u + dst_chroma_width * dst_chroma_height; |
| |
| // Split source UV plane into separate U and V plane using the temporary data. |
| libyuv::SplitUVPlane(src_uv, src_stride_uv, src_u, src_chroma_width, src_v, |
| src_chroma_width, src_chroma_width, src_chroma_height); |
| |
| // Scale the planes. |
| libyuv::I420Scale( |
| src_y, src_stride_y, src_u, src_chroma_width, src_v, src_chroma_width, |
| src_width, src_height, dst_y, dst_stride_y, dst_u, dst_chroma_width, |
| dst_v, dst_chroma_width, dst_width, dst_height, libyuv::kFilterBox); |
| |
| // Merge the UV planes into the destination. |
| libyuv::MergeUVPlane(dst_u, dst_chroma_width, dst_v, dst_chroma_width, dst_uv, |
| dst_stride_uv, dst_chroma_width, dst_chroma_height); |
| } |
| |
| NV12ToI420Scaler::NV12ToI420Scaler() = default; |
| NV12ToI420Scaler::~NV12ToI420Scaler() = default; |
| |
| void NV12ToI420Scaler::NV12ToI420Scale(const uint8_t* src_y, |
| int src_stride_y, |
| const uint8_t* src_uv, |
| int src_stride_uv, |
| int src_width, |
| int src_height, |
| uint8_t* dst_y, |
| int dst_stride_y, |
| uint8_t* dst_u, |
| int dst_stride_u, |
| uint8_t* dst_v, |
| int dst_stride_v, |
| int dst_width, |
| int dst_height) { |
| if (src_width == dst_width && src_height == dst_height) { |
| // No scaling. |
| tmp_uv_planes_.clear(); |
| tmp_uv_planes_.shrink_to_fit(); |
| libyuv::NV12ToI420(src_y, src_stride_y, src_uv, src_stride_uv, dst_y, |
| dst_stride_y, dst_u, dst_stride_u, dst_v, dst_stride_v, |
| src_width, src_height); |
| return; |
| } |
| |
| // Scaling. |
| // Allocate temporary memory for spitting UV planes. |
| const int src_uv_width = (src_width + 1) / 2; |
| const int src_uv_height = (src_height + 1) / 2; |
| tmp_uv_planes_.resize(src_uv_width * src_uv_height * 2); |
| tmp_uv_planes_.shrink_to_fit(); |
| |
| // Split source UV plane into separate U and V plane using the temporary data. |
| uint8_t* const src_u = tmp_uv_planes_.data(); |
| uint8_t* const src_v = tmp_uv_planes_.data() + src_uv_width * src_uv_height; |
| libyuv::SplitUVPlane(src_uv, src_stride_uv, src_u, src_uv_width, src_v, |
| src_uv_width, src_uv_width, src_uv_height); |
| |
| // Scale the planes into the destination. |
| libyuv::I420Scale(src_y, src_stride_y, src_u, src_uv_width, src_v, |
| src_uv_width, src_width, src_height, dst_y, dst_stride_y, |
| dst_u, dst_stride_u, dst_v, dst_stride_v, dst_width, |
| dst_height, libyuv::kFilterBox); |
| } |
| |
| } // namespace webrtc |
