1c05765831
Mechanically generated with this command: tools_webrtc/do-rename.sh move all-renames.txt Bug: webrtc:10159 No-Presubmit: true No-Tree-Checks: true No-Try: true Change-Id: I8b05b6eab9b9d18b29c2199bbea239e9add1e690 Reviewed-on: https://webrtc-review.googlesource.com/c/115481 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26225}
81 lines
3.4 KiB
C++
81 lines
3.4 KiB
C++
/*
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* Copyright 2017 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <jni.h>
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#include <vector>
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#include "third_party/libyuv/include/libyuv/convert.h"
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#include "third_party/libyuv/include/libyuv/scale.h"
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#include "rtc_base/checks.h"
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#include "sdk/android/generated_video_jni/jni/NV12Buffer_jni.h"
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namespace webrtc {
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namespace jni {
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static void JNI_NV12Buffer_CropAndScale(JNIEnv* jni,
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jint crop_x,
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jint crop_y,
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jint crop_width,
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jint crop_height,
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jint scale_width,
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jint scale_height,
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const JavaParamRef<jobject>& j_src,
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jint src_width,
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jint src_height,
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jint src_stride,
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jint src_slice_height,
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const JavaParamRef<jobject>& j_dst_y,
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jint dst_stride_y,
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const JavaParamRef<jobject>& j_dst_u,
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jint dst_stride_u,
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const JavaParamRef<jobject>& j_dst_v,
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jint dst_stride_v) {
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const int src_stride_y = src_stride;
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const int src_stride_uv = src_stride;
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const int crop_chroma_x = crop_x / 2;
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const int crop_chroma_y = crop_y / 2;
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const int crop_chroma_width = (crop_width + 1) / 2;
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const int crop_chroma_height = (crop_height + 1) / 2;
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const int tmp_stride_u = crop_chroma_width;
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const int tmp_stride_v = crop_chroma_width;
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const int tmp_size = crop_chroma_height * (tmp_stride_u + tmp_stride_v);
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uint8_t const* src_y =
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static_cast<uint8_t const*>(jni->GetDirectBufferAddress(j_src.obj()));
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uint8_t const* src_uv = src_y + src_slice_height * src_stride_y;
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uint8_t* dst_y =
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static_cast<uint8_t*>(jni->GetDirectBufferAddress(j_dst_y.obj()));
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uint8_t* dst_u =
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static_cast<uint8_t*>(jni->GetDirectBufferAddress(j_dst_u.obj()));
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uint8_t* dst_v =
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static_cast<uint8_t*>(jni->GetDirectBufferAddress(j_dst_v.obj()));
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// Crop using pointer arithmetic.
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src_y += crop_x + crop_y * src_stride_y;
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src_uv += 2 * crop_chroma_x + crop_chroma_y * src_stride_uv;
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std::vector<uint8_t> tmp_buffer(tmp_size);
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uint8_t* tmp_u = tmp_buffer.data();
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uint8_t* tmp_v = tmp_u + crop_chroma_height * tmp_stride_u;
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libyuv::SplitUVPlane(src_uv, src_stride_uv, tmp_u, tmp_stride_u, tmp_v,
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tmp_stride_v, crop_chroma_width, crop_chroma_height);
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libyuv::I420Scale(src_y, src_stride_y, tmp_u, tmp_stride_u, tmp_v,
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tmp_stride_v, crop_width, crop_height, dst_y, dst_stride_y,
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dst_u, dst_stride_u, dst_v, dst_stride_v, scale_width,
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scale_height, libyuv::kFilterBox);
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}
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} // namespace jni
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} // namespace webrtc
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