| /* |
| * Copyright (c) 2011 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 "testsupport/frame_reader.h" |
| |
| #include <cassert> |
| |
| #include "testsupport/fileutils.h" |
| |
| namespace webrtc { |
| namespace test { |
| |
| FrameReaderImpl::FrameReaderImpl(std::string input_filename, |
| int frame_length_in_bytes) |
| : input_filename_(input_filename), |
| frame_length_in_bytes_(frame_length_in_bytes), |
| input_file_(NULL) { |
| } |
| |
| FrameReaderImpl::~FrameReaderImpl() { |
| Close(); |
| } |
| |
| bool FrameReaderImpl::Init() { |
| if (frame_length_in_bytes_ <= 0) { |
| fprintf(stderr, "Frame length must be >0, was %d\n", |
| frame_length_in_bytes_); |
| return false; |
| } |
| input_file_ = fopen(input_filename_.c_str(), "rb"); |
| if (input_file_ == NULL) { |
| 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_ = source_file_size / frame_length_in_bytes_; |
| return true; |
| } |
| |
| void FrameReaderImpl::Close() { |
| if (input_file_ != NULL) { |
| fclose(input_file_); |
| input_file_ = NULL; |
| } |
| } |
| |
| bool FrameReaderImpl::ReadFrame(WebRtc_UWord8* source_buffer) { |
| assert(source_buffer); |
| if (input_file_ == NULL) { |
| fprintf(stderr, "FrameReader is not initialized (input file is NULL)\n"); |
| return false; |
| } |
| size_t nbr_read = fread(source_buffer, 1, frame_length_in_bytes_, |
| input_file_); |
| if (nbr_read != static_cast<unsigned int>(frame_length_in_bytes_) && |
| ferror(input_file_)) { |
| fprintf(stderr, "Error reading from input file: %s\n", |
| input_filename_.c_str()); |
| return false; |
| } |
| if (feof(input_file_) != 0) { |
| return false; // No more frames to process. |
| } |
| return true; |
| } |
| |
| } // namespace test |
| } // namespace webrtc |