115bd153c7
This change reduces the number of places where we first fread a I420 frame into a uint8_t buffer, followed by a copy into a frame buffer object. BUG=None Review-Url: https://codereview.webrtc.org/2362683002 Cr-Commit-Position: refs/heads/master@{#14456}
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/test/testsupport/frame_reader.h"
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#include <assert.h>
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#include "webrtc/test/frame_utils.h"
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#include "webrtc/test/testsupport/fileutils.h"
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#include "webrtc/common_video/include/video_frame_buffer.h"
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namespace webrtc {
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namespace test {
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FrameReaderImpl::FrameReaderImpl(std::string input_filename,
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int width, int height)
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: input_filename_(input_filename),
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width_(width), height_(height),
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input_file_(NULL) {
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}
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FrameReaderImpl::~FrameReaderImpl() {
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Close();
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}
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bool FrameReaderImpl::Init() {
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if (width_ <= 0 || height_ <= 0) {
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fprintf(stderr, "Frame width and height must be >0, was %d x %d\n",
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width_, height_);
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return false;
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}
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frame_length_in_bytes_ =
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width_ * height_ + 2 * ((width_ + 1) / 2) * ((height_ + 1) / 2);
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input_file_ = fopen(input_filename_.c_str(), "rb");
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if (input_file_ == NULL) {
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fprintf(stderr, "Couldn't open input file for reading: %s\n",
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input_filename_.c_str());
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return false;
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}
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// Calculate total number of frames.
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size_t source_file_size = GetFileSize(input_filename_);
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if (source_file_size <= 0u) {
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fprintf(stderr, "Found empty file: %s\n", input_filename_.c_str());
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return false;
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}
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number_of_frames_ = static_cast<int>(source_file_size /
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frame_length_in_bytes_);
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return true;
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}
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void FrameReaderImpl::Close() {
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if (input_file_ != NULL) {
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fclose(input_file_);
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input_file_ = NULL;
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}
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}
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rtc::scoped_refptr<I420Buffer> FrameReaderImpl::ReadFrame() {
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if (input_file_ == NULL) {
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fprintf(stderr, "FrameReader is not initialized (input file is NULL)\n");
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return nullptr;
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}
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rtc::scoped_refptr<I420Buffer> buffer(
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ReadI420Buffer(width_, height_, input_file_));
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if (!buffer && ferror(input_file_)) {
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fprintf(stderr, "Error reading from input file: %s\n",
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input_filename_.c_str());
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}
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return buffer;
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}
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size_t FrameReaderImpl::FrameLength() { return frame_length_in_bytes_; }
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int FrameReaderImpl::NumberOfFrames() { return number_of_frames_; }
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} // namespace test
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} // namespace webrtc
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