blob: 91b31a6e72b8a42cbd61f147aea532ae1c68d40e [file] [log] [blame]
/*
* 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/scoped_refptr.h"
#include "api/video/i420_buffer.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