| OLD | NEW |
| (Empty) |
| 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/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 | |
| OLD | NEW |