| /* |
| * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <stdio.h> |
| #include <string> |
| |
| #include "api/video/i420_buffer.h" |
| #include "rtc_base/scoped_ref_ptr.h" |
| #include "test/frame_utils.h" |
| #include "test/testsupport/file_utils.h" |
| #include "test/testsupport/frame_reader.h" |
| |
| namespace webrtc { |
| namespace test { |
| |
| YuvFrameReaderImpl::YuvFrameReaderImpl(std::string input_filename, |
| int width, |
| int height) |
| : input_filename_(input_filename), |
| frame_length_in_bytes_(width * height + |
| 2 * ((width + 1) / 2) * ((height + 1) / 2)), |
| width_(width), |
| height_(height), |
| number_of_frames_(-1), |
| input_file_(nullptr) {} |
| |
| YuvFrameReaderImpl::~YuvFrameReaderImpl() { |
| Close(); |
| } |
| |
| bool YuvFrameReaderImpl::Init() { |
| if (width_ <= 0 || height_ <= 0) { |
| fprintf(stderr, "Frame width and height must be >0, was %d x %d\n", width_, |
| height_); |
| return false; |
| } |
| input_file_ = fopen(input_filename_.c_str(), "rb"); |
| if (input_file_ == nullptr) { |
| fprintf(stderr, "Couldn't open input file for reading: %s\n", |
| input_filename_.c_str()); |
| return false; |
| } |
| // Calculate total number of frames. |
| size_t source_file_size = GetFileSize(input_filename_); |
| if (source_file_size <= 0u) { |
| fprintf(stderr, "Found empty file: %s\n", input_filename_.c_str()); |
| return false; |
| } |
| number_of_frames_ = |
| static_cast<int>(source_file_size / frame_length_in_bytes_); |
| return true; |
| } |
| |
| rtc::scoped_refptr<I420Buffer> YuvFrameReaderImpl::ReadFrame() { |
| if (input_file_ == nullptr) { |
| fprintf(stderr, |
| "YuvFrameReaderImpl is not initialized (input file is NULL)\n"); |
| return nullptr; |
| } |
| rtc::scoped_refptr<I420Buffer> buffer( |
| ReadI420Buffer(width_, height_, input_file_)); |
| if (!buffer && ferror(input_file_)) { |
| fprintf(stderr, "Error reading from input file: %s\n", |
| input_filename_.c_str()); |
| } |
| return buffer; |
| } |
| |
| void YuvFrameReaderImpl::Close() { |
| if (input_file_ != nullptr) { |
| fclose(input_file_); |
| input_file_ = nullptr; |
| } |
| } |
| |
| size_t YuvFrameReaderImpl::FrameLength() { |
| return frame_length_in_bytes_; |
| } |
| |
| int YuvFrameReaderImpl::NumberOfFrames() { |
| return number_of_frames_; |
| } |
| |
| } // namespace test |
| } // namespace webrtc |