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Side by Side Diff: webrtc/modules/video_processing/main/source/brighten.cc

Issue 1410663004: modules/video_processing: refactor interface->include + more. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Rebased Created 5 years, 1 month ago
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1 /*
2 * Copyright (c) 2011 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/modules/video_processing/main/source/brighten.h"
12
13 #include <stdlib.h>
14
15 namespace webrtc {
16 namespace VideoProcessing {
17
18 int32_t Brighten(VideoFrame* frame, int delta) {
19 assert(frame);
20 if (frame->IsZeroSize()) {
21 return VPM_PARAMETER_ERROR;
22 }
23 if (frame->width() <= 0 || frame->height() <= 0) {
24 return VPM_PARAMETER_ERROR;
25 }
26
27 int num_pixels = frame->width() * frame->height();
28
29 int look_up[256];
30 for (int i = 0; i < 256; i++) {
31 int val = i + delta;
32 look_up[i] = ((((val < 0) ? 0 : val) > 255) ? 255 : val);
33 }
34
35 uint8_t* temp_ptr = frame->buffer(kYPlane);
36
37 for (int i = 0; i < num_pixels; i++) {
38 *temp_ptr = static_cast<uint8_t>(look_up[*temp_ptr]);
39 temp_ptr++;
40 }
41 return VPM_OK;
42 }
43
44 } // namespace VideoProcessing
45 } // namespace webrtc
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