You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.6 KiB
94 lines
2.6 KiB
/*
|
|
* 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
|