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| 1 /* | |
| 2 * Copyright 2016 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include "webrtc/sdk/objc/Framework/Classes/Video/corevideo_frame_buffer.h" | |
| 12 | |
| 13 #include "libyuv/convert.h" | |
| 14 #include "webrtc/api/video/i420_buffer.h" | |
| 15 #include "webrtc/base/checks.h" | |
| 16 #include "webrtc/base/logging.h" | |
| 17 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h" | |
| 18 | |
| 19 namespace webrtc { | |
| 20 | |
| 21 CoreVideoFrameBuffer::CoreVideoFrameBuffer(CVPixelBufferRef pixel_buffer, | |
| 22 int adapted_width, | |
| 23 int adapted_height, | |
| 24 int crop_width, | |
| 25 int crop_height, | |
| 26 int crop_x, | |
| 27 int crop_y) | |
| 28 : NativeHandleBuffer(pixel_buffer, adapted_width, adapted_height), | |
| 29 pixel_buffer_(pixel_buffer), | |
| 30 buffer_width_(CVPixelBufferGetWidth(pixel_buffer)), | |
| 31 buffer_height_(CVPixelBufferGetHeight(pixel_buffer)), | |
| 32 crop_width_(crop_width), crop_height_(crop_height), | |
| 33 // Can only crop at even pixels. | |
| 34 crop_x_(crop_x & ~1), crop_y_(crop_y & ~1) { | |
| 35 CVBufferRetain(pixel_buffer_); | |
| 36 } | |
| 37 | |
| 38 CoreVideoFrameBuffer::CoreVideoFrameBuffer(CVPixelBufferRef pixel_buffer) | |
| 39 : NativeHandleBuffer(pixel_buffer, | |
| 40 CVPixelBufferGetWidth(pixel_buffer), | |
| 41 CVPixelBufferGetHeight(pixel_buffer)), | |
| 42 pixel_buffer_(pixel_buffer), | |
| 43 buffer_width_(width_), buffer_height_(height_), | |
| 44 crop_width_(width_), crop_height_(height_), | |
| 45 crop_x_(0), crop_y_(0) { | |
| 46 CVBufferRetain(pixel_buffer_); | |
| 47 } | |
| 48 | |
| 49 CoreVideoFrameBuffer::~CoreVideoFrameBuffer() { | |
| 50 CVBufferRelease(pixel_buffer_); | |
| 51 } | |
| 52 | |
| 53 rtc::scoped_refptr<VideoFrameBuffer> | |
| 54 CoreVideoFrameBuffer::NativeToI420Buffer() { | |
| 55 const OSType pixel_format = CVPixelBufferGetPixelFormatType(pixel_buffer_); | |
| 56 RTC_DCHECK(pixel_format == kCVPixelFormatType_420YpCbCr8BiPlanarFullRange || | |
| 57 pixel_format == kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange); | |
| 58 | |
| 59 CVPixelBufferLockBaseAddress(pixel_buffer_, kCVPixelBufferLock_ReadOnly); | |
| 60 const uint8_t* src_y = static_cast<const uint8_t*>( | |
| 61 CVPixelBufferGetBaseAddressOfPlane(pixel_buffer_, 0)); | |
| 62 const int src_y_stride = CVPixelBufferGetBytesPerRowOfPlane(pixel_buffer_, 0); | |
| 63 const uint8_t* src_uv = static_cast<const uint8_t*>( | |
| 64 CVPixelBufferGetBaseAddressOfPlane(pixel_buffer_, 1)); | |
| 65 const int src_uv_stride = | |
| 66 CVPixelBufferGetBytesPerRowOfPlane(pixel_buffer_, 1); | |
| 67 | |
| 68 // Crop just by modifying pointers. | |
| 69 src_y += src_y_stride * crop_y_ + crop_x_; | |
| 70 src_uv += src_uv_stride * (crop_y_ / 2) + crop_x_; | |
| 71 | |
| 72 // TODO(magjed): Use a frame buffer pool. | |
| 73 NV12ToI420Scaler nv12_to_i420_scaler; | |
| 74 rtc::scoped_refptr<I420Buffer> buffer = | |
| 75 new rtc::RefCountedObject<I420Buffer>(width_, height_); | |
| 76 nv12_to_i420_scaler.NV12ToI420Scale( | |
| 77 src_y, src_y_stride, | |
| 78 src_uv, src_uv_stride, | |
| 79 crop_width_, crop_height_, | |
| 80 buffer->MutableDataY(), buffer->StrideY(), | |
| 81 buffer->MutableDataU(), buffer->StrideU(), | |
| 82 buffer->MutableDataV(), buffer->StrideV(), | |
| 83 buffer->width(), buffer->height()); | |
| 84 | |
| 85 CVPixelBufferUnlockBaseAddress(pixel_buffer_, kCVPixelBufferLock_ReadOnly); | |
| 86 | |
| 87 return buffer; | |
| 88 } | |
| 89 | |
| 90 bool CoreVideoFrameBuffer::RequiresCropping() const { | |
| 91 return crop_width_ != buffer_width_ || crop_height_ != buffer_height_; | |
| 92 } | |
| 93 | |
| 94 bool CoreVideoFrameBuffer::CropAndScaleTo( | |
| 95 std::vector<uint8_t>* tmp_buffer, | |
| 96 CVPixelBufferRef output_pixel_buffer) const { | |
| 97 // Prepare output pointers. | |
| 98 RTC_DCHECK_EQ(CVPixelBufferGetPixelFormatType(output_pixel_buffer), | |
| 99 kCVPixelFormatType_420YpCbCr8BiPlanarFullRange); | |
| 100 CVReturn cv_ret = CVPixelBufferLockBaseAddress(output_pixel_buffer, 0); | |
| 101 if (cv_ret != kCVReturnSuccess) { | |
| 102 LOG(LS_ERROR) << "Failed to lock base address: " << cv_ret; | |
| 103 return false; | |
| 104 } | |
| 105 const int dst_width = CVPixelBufferGetWidth(output_pixel_buffer); | |
| 106 const int dst_height = CVPixelBufferGetHeight(output_pixel_buffer); | |
| 107 uint8_t* dst_y = reinterpret_cast<uint8_t*>( | |
| 108 CVPixelBufferGetBaseAddressOfPlane(output_pixel_buffer, 0)); | |
| 109 const int dst_y_stride = | |
| 110 CVPixelBufferGetBytesPerRowOfPlane(output_pixel_buffer, 0); | |
| 111 uint8_t* dst_uv = reinterpret_cast<uint8_t*>( | |
| 112 CVPixelBufferGetBaseAddressOfPlane(output_pixel_buffer, 1)); | |
| 113 const int dst_uv_stride = | |
| 114 CVPixelBufferGetBytesPerRowOfPlane(output_pixel_buffer, 1); | |
| 115 | |
| 116 // Prepare source pointers. | |
| 117 const OSType src_pixel_format = | |
| 118 CVPixelBufferGetPixelFormatType(pixel_buffer_); | |
| 119 RTC_DCHECK( | |
| 120 src_pixel_format == kCVPixelFormatType_420YpCbCr8BiPlanarFullRange || | |
| 121 src_pixel_format == kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange); | |
| 122 CVPixelBufferLockBaseAddress(pixel_buffer_, kCVPixelBufferLock_ReadOnly); | |
| 123 const uint8_t* src_y = static_cast<const uint8_t*>( | |
| 124 CVPixelBufferGetBaseAddressOfPlane(pixel_buffer_, 0)); | |
| 125 const int src_y_stride = CVPixelBufferGetBytesPerRowOfPlane(pixel_buffer_, 0); | |
| 126 const uint8_t* src_uv = static_cast<const uint8_t*>( | |
| 127 CVPixelBufferGetBaseAddressOfPlane(pixel_buffer_, 1)); | |
| 128 const int src_uv_stride = | |
| 129 CVPixelBufferGetBytesPerRowOfPlane(pixel_buffer_, 1); | |
| 130 | |
| 131 // Crop just by modifying pointers. | |
| 132 src_y += src_y_stride * crop_y_ + crop_x_; | |
| 133 src_uv += src_uv_stride * (crop_y_ / 2) + crop_x_; | |
| 134 | |
| 135 NV12Scale(tmp_buffer, | |
| 136 src_y, src_y_stride, | |
| 137 src_uv, src_uv_stride, | |
| 138 crop_width_, crop_height_, | |
| 139 dst_y, dst_y_stride, | |
| 140 dst_uv, dst_uv_stride, | |
| 141 dst_width, dst_height); | |
| 142 | |
| 143 CVPixelBufferUnlockBaseAddress(pixel_buffer_, kCVPixelBufferLock_ReadOnly); | |
| 144 CVPixelBufferUnlockBaseAddress(output_pixel_buffer, 0); | |
| 145 | |
| 146 return true; | |
| 147 } | |
| 148 | |
| 149 } // namespace webrtc | |
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Issue 2890513002:
Revert of Split iOS sdk in to separate targets (Closed)
