blob: 339ceea1d42a0337df28dcb4a6348417a3598ecc [file] [log] [blame]
/*
* 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 "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
#include <assert.h>
#include <string.h>
// NOTE(ajm): Path provided by gyp.
#include "libyuv.h" // NOLINT
namespace webrtc {
const int k16ByteAlignment = 16;
VideoType RawVideoTypeToCommonVideoVideoType(RawVideoType type) {
switch (type) {
case kVideoI420:
return kI420;
case kVideoIYUV:
return kIYUV;
case kVideoRGB24:
return kRGB24;
case kVideoARGB:
return kARGB;
case kVideoARGB4444:
return kARGB4444;
case kVideoRGB565:
return kRGB565;
case kVideoARGB1555:
return kARGB1555;
case kVideoYUY2:
return kYUY2;
case kVideoYV12:
return kYV12;
case kVideoUYVY:
return kUYVY;
case kVideoNV21:
return kNV21;
case kVideoNV12:
return kNV12;
case kVideoBGRA:
return kBGRA;
case kVideoMJPEG:
return kMJPG;
default:
assert(false);
}
return kUnknown;
}
int AlignInt(int value, int alignment) {
assert(!((alignment - 1) & alignment));
return ((value + alignment - 1) & ~ (alignment - 1));
}
void Calc16ByteAlignedStride(int width, int* stride_y, int* stride_uv) {
*stride_y = AlignInt(width, k16ByteAlignment);
*stride_uv = AlignInt((width + 1) / 2, k16ByteAlignment);
}
size_t CalcBufferSize(VideoType type, int width, int height) {
assert(width >= 0);
assert(height >= 0);
size_t buffer_size = 0;
switch (type) {
case kI420:
case kNV12:
case kNV21:
case kIYUV:
case kYV12: {
int half_width = (width + 1) >> 1;
int half_height = (height + 1) >> 1;
buffer_size = width * height + half_width * half_height * 2;
break;
}
case kARGB4444:
case kRGB565:
case kARGB1555:
case kYUY2:
case kUYVY:
buffer_size = width * height * 2;
break;
case kRGB24:
buffer_size = width * height * 3;
break;
case kBGRA:
case kARGB:
buffer_size = width * height * 4;
break;
default:
assert(false);
break;
}
return buffer_size;
}
int PrintI420VideoFrame(const I420VideoFrame& frame, FILE* file) {
if (file == NULL)
return -1;
if (frame.IsZeroSize())
return -1;
for (int planeNum = 0; planeNum < kNumOfPlanes; ++planeNum) {
int width = (planeNum ? (frame.width() + 1) / 2 : frame.width());
int height = (planeNum ? (frame.height() + 1) / 2 : frame.height());
PlaneType plane_type = static_cast<PlaneType>(planeNum);
const uint8_t* plane_buffer = frame.buffer(plane_type);
for (int y = 0; y < height; y++) {
if (fwrite(plane_buffer, 1, width, file) !=
static_cast<unsigned int>(width)) {
return -1;
}
plane_buffer += frame.stride(plane_type);
}
}
return 0;
}
int ExtractBuffer(const I420VideoFrame& input_frame,
size_t size, uint8_t* buffer) {
assert(buffer);
if (input_frame.IsZeroSize())
return -1;
size_t length =
CalcBufferSize(kI420, input_frame.width(), input_frame.height());
if (size < length) {
return -1;
}
int pos = 0;
uint8_t* buffer_ptr = buffer;
for (int plane = 0; plane < kNumOfPlanes; ++plane) {
int width = (plane ? (input_frame.width() + 1) / 2 :
input_frame.width());
int height = (plane ? (input_frame.height() + 1) / 2 :
input_frame.height());
const uint8_t* plane_ptr = input_frame.buffer(
static_cast<PlaneType>(plane));
for (int y = 0; y < height; y++) {
memcpy(&buffer_ptr[pos], plane_ptr, width);
pos += width;
plane_ptr += input_frame.stride(static_cast<PlaneType>(plane));
}
}
return static_cast<int>(length);
}
int ConvertNV12ToRGB565(const uint8_t* src_frame,
uint8_t* dst_frame,
int width, int height) {
int abs_height = (height < 0) ? -height : height;
const uint8_t* yplane = src_frame;
const uint8_t* uvInterlaced = src_frame + (width * abs_height);
return libyuv::NV12ToRGB565(yplane, width,
uvInterlaced, (width + 1) >> 1,
dst_frame, width,
width, height);
}
int ConvertRGB24ToARGB(const uint8_t* src_frame, uint8_t* dst_frame,
int width, int height, int dst_stride) {
if (dst_stride == 0)
dst_stride = width;
return libyuv::RGB24ToARGB(src_frame, width,
dst_frame, dst_stride,
width, height);
}
libyuv::RotationMode ConvertRotationMode(VideoRotationMode rotation) {
switch(rotation) {
case kRotateNone:
return libyuv::kRotate0;
case kRotate90:
return libyuv::kRotate90;
case kRotate180:
return libyuv::kRotate180;
case kRotate270:
return libyuv::kRotate270;
}
assert(false);
return libyuv::kRotate0;
}
int ConvertVideoType(VideoType video_type) {
switch(video_type) {
case kUnknown:
return libyuv::FOURCC_ANY;
case kI420:
return libyuv::FOURCC_I420;
case kIYUV: // same as KYV12
case kYV12:
return libyuv::FOURCC_YV12;
case kRGB24:
return libyuv::FOURCC_24BG;
case kABGR:
return libyuv::FOURCC_ABGR;
case kRGB565:
return libyuv::FOURCC_RGBP;
case kYUY2:
return libyuv::FOURCC_YUY2;
case kUYVY:
return libyuv::FOURCC_UYVY;
case kMJPG:
return libyuv::FOURCC_MJPG;
case kNV21:
return libyuv::FOURCC_NV21;
case kNV12:
return libyuv::FOURCC_NV12;
case kARGB:
return libyuv::FOURCC_ARGB;
case kBGRA:
return libyuv::FOURCC_BGRA;
case kARGB4444:
return libyuv::FOURCC_R444;
case kARGB1555:
return libyuv::FOURCC_RGBO;
}
assert(false);
return libyuv::FOURCC_ANY;
}
int ConvertToI420(VideoType src_video_type,
const uint8_t* src_frame,
int crop_x, int crop_y,
int src_width, int src_height,
size_t sample_size,
VideoRotationMode rotation,
I420VideoFrame* dst_frame) {
int dst_width = dst_frame->width();
int dst_height = dst_frame->height();
// LibYuv expects pre-rotation values for dst.
// Stride values should correspond to the destination values.
if (rotation == kRotate90 || rotation == kRotate270) {
dst_width = dst_frame->height();
dst_height =dst_frame->width();
}
return libyuv::ConvertToI420(src_frame, sample_size,
dst_frame->buffer(kYPlane),
dst_frame->stride(kYPlane),
dst_frame->buffer(kUPlane),
dst_frame->stride(kUPlane),
dst_frame->buffer(kVPlane),
dst_frame->stride(kVPlane),
crop_x, crop_y,
src_width, src_height,
dst_width, dst_height,
ConvertRotationMode(rotation),
ConvertVideoType(src_video_type));
}
int ConvertFromI420(const I420VideoFrame& src_frame,
VideoType dst_video_type, int dst_sample_size,
uint8_t* dst_frame) {
return libyuv::ConvertFromI420(src_frame.buffer(kYPlane),
src_frame.stride(kYPlane),
src_frame.buffer(kUPlane),
src_frame.stride(kUPlane),
src_frame.buffer(kVPlane),
src_frame.stride(kVPlane),
dst_frame, dst_sample_size,
src_frame.width(), src_frame.height(),
ConvertVideoType(dst_video_type));
}
// TODO(mikhal): Create a designated VideoFrame for non I420.
int ConvertFromYV12(const I420VideoFrame& src_frame,
VideoType dst_video_type, int dst_sample_size,
uint8_t* dst_frame) {
// YV12 = Y, V, U
return libyuv::ConvertFromI420(src_frame.buffer(kYPlane),
src_frame.stride(kYPlane),
src_frame.buffer(kVPlane),
src_frame.stride(kVPlane),
src_frame.buffer(kUPlane),
src_frame.stride(kUPlane),
dst_frame, dst_sample_size,
src_frame.width(), src_frame.height(),
ConvertVideoType(dst_video_type));
}
// Compute PSNR for an I420 frame (all planes)
double I420PSNR(const I420VideoFrame* ref_frame,
const I420VideoFrame* test_frame) {
if (!ref_frame || !test_frame)
return -1;
else if ((ref_frame->width() != test_frame->width()) ||
(ref_frame->height() != test_frame->height()))
return -1;
else if (ref_frame->width() < 0 || ref_frame->height() < 0)
return -1;
double psnr = libyuv::I420Psnr(ref_frame->buffer(kYPlane),
ref_frame->stride(kYPlane),
ref_frame->buffer(kUPlane),
ref_frame->stride(kUPlane),
ref_frame->buffer(kVPlane),
ref_frame->stride(kVPlane),
test_frame->buffer(kYPlane),
test_frame->stride(kYPlane),
test_frame->buffer(kUPlane),
test_frame->stride(kUPlane),
test_frame->buffer(kVPlane),
test_frame->stride(kVPlane),
test_frame->width(), test_frame->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 SSIM for an I420 frame (all planes)
double I420SSIM(const I420VideoFrame* ref_frame,
const I420VideoFrame* test_frame) {
if (!ref_frame || !test_frame)
return -1;
else if ((ref_frame->width() != test_frame->width()) ||
(ref_frame->height() != test_frame->height()))
return -1;
else if (ref_frame->width() < 0 || ref_frame->height() < 0)
return -1;
return libyuv::I420Ssim(ref_frame->buffer(kYPlane),
ref_frame->stride(kYPlane),
ref_frame->buffer(kUPlane),
ref_frame->stride(kUPlane),
ref_frame->buffer(kVPlane),
ref_frame->stride(kVPlane),
test_frame->buffer(kYPlane),
test_frame->stride(kYPlane),
test_frame->buffer(kUPlane),
test_frame->stride(kUPlane),
test_frame->buffer(kVPlane),
test_frame->stride(kVPlane),
test_frame->width(), test_frame->height());
}
} // namespace webrtc