andresp@webrtc.org | ab65495 | 2013-09-19 12:14:03 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2013 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 | #include "webrtc/common_video/test/frame_generator.h" |
| 11 | |
| 12 | #include <stdio.h> |
| 13 | |
| 14 | #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h" |
| 15 | |
| 16 | namespace webrtc { |
| 17 | namespace test { |
| 18 | namespace { |
| 19 | |
| 20 | class YuvFileGenerator : public FrameGenerator { |
| 21 | public: |
| 22 | YuvFileGenerator(FILE* file, size_t width, size_t height) |
| 23 | : file_(file), width_(width), height_(height) { |
| 24 | assert(file); |
| 25 | assert(width > 0); |
| 26 | assert(height > 0); |
| 27 | frame_size_ = CalcBufferSize( |
| 28 | kI420, static_cast<int>(width_), static_cast<int>(height_)); |
| 29 | frame_buffer_ = new uint8_t[frame_size_]; |
| 30 | frame_.CreateEmptyFrame(static_cast<int>(width), |
| 31 | static_cast<int>(height), |
| 32 | static_cast<int>(width), |
| 33 | static_cast<int>((width + 1) / 2), |
| 34 | static_cast<int>((width + 1) / 2)); |
| 35 | } |
| 36 | |
| 37 | virtual ~YuvFileGenerator() { |
| 38 | fclose(file_); |
| 39 | delete[] frame_buffer_; |
| 40 | } |
| 41 | |
| 42 | virtual I420VideoFrame& NextFrame() OVERRIDE { |
| 43 | size_t count = fread(frame_buffer_, 1, frame_size_, file_); |
| 44 | if (count < frame_size_) { |
| 45 | rewind(file_); |
| 46 | return NextFrame(); |
| 47 | } |
| 48 | |
| 49 | ConvertToI420(kI420, |
| 50 | frame_buffer_, |
| 51 | 0, |
| 52 | 0, |
| 53 | static_cast<int>(width_), |
| 54 | static_cast<int>(height_), |
| 55 | 0, |
| 56 | kRotateNone, |
| 57 | &frame_); |
| 58 | return frame_; |
| 59 | } |
| 60 | |
| 61 | private: |
| 62 | FILE* file_; |
| 63 | size_t width_; |
| 64 | size_t height_; |
| 65 | size_t frame_size_; |
| 66 | uint8_t* frame_buffer_; |
| 67 | I420VideoFrame frame_; |
| 68 | }; |
| 69 | } // namespace |
| 70 | |
| 71 | FrameGenerator* FrameGenerator::CreateFromYuvFile(const char* file, |
| 72 | size_t width, |
| 73 | size_t height) { |
| 74 | FILE* file_handle = fopen(file, "r"); |
| 75 | assert(file_handle); |
| 76 | return new YuvFileGenerator(file_handle, width, height); |
| 77 | } |
| 78 | |
| 79 | } // namespace test |
| 80 | } // namespace webrtc |