94 lines
3.0 KiB
C++
94 lines
3.0 KiB
C++
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/*
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* Copyright (c) 2018 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 "rtc_tools/video_file_writer.h"
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#include <stdint.h>
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#include <cstdio>
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#include <string>
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#include "absl/strings/match.h"
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#include "api/video/video_frame_buffer.h"
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#include "rtc_base/logging.h"
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namespace webrtc {
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namespace test {
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namespace {
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void WriteVideoToFile(const rtc::scoped_refptr<Video>& video,
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const std::string& file_name,
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int fps,
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bool isY4m) {
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RTC_CHECK(video);
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FILE* output_file = fopen(file_name.c_str(), "wb");
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if (output_file == nullptr) {
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RTC_LOG(LS_ERROR) << "Could not open file for writing: " << file_name;
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return;
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}
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if (isY4m) {
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fprintf(output_file, "YUV4MPEG2 W%d H%d F%d:1 C420\n", video->width(),
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video->height(), fps);
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}
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for (size_t i = 0; i < video->number_of_frames(); ++i) {
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if (isY4m) {
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std::string frame = "FRAME\n";
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fwrite(frame.c_str(), 1, 6, output_file);
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}
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rtc::scoped_refptr<I420BufferInterface> buffer = video->GetFrame(i);
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RTC_CHECK(buffer) << "Frame: " << i
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<< "\nWhile trying to create: " << file_name;
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const uint8_t* data_y = buffer->DataY();
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int stride = buffer->StrideY();
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for (int i = 0; i < video->height(); ++i) {
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fwrite(data_y + i * stride, /*size=*/1, stride, output_file);
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}
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const uint8_t* data_u = buffer->DataU();
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stride = buffer->StrideU();
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for (int i = 0; i < buffer->ChromaHeight(); ++i) {
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fwrite(data_u + i * stride, /*size=*/1, stride, output_file);
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}
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const uint8_t* data_v = buffer->DataV();
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stride = buffer->StrideV();
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for (int i = 0; i < buffer->ChromaHeight(); ++i) {
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fwrite(data_v + i * stride, /*size=*/1, stride, output_file);
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}
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}
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if (ferror(output_file) != 0) {
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RTC_LOG(LS_ERROR) << "Error writing to file " << file_name;
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}
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fclose(output_file);
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}
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} // Anonymous namespace
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void WriteVideoToFile(const rtc::scoped_refptr<Video>& video,
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const std::string& file_name,
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int fps) {
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WriteVideoToFile(video, file_name, fps,
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/*isY4m=*/absl::EndsWith(file_name, ".y4m"));
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}
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void WriteY4mVideoToFile(const rtc::scoped_refptr<Video>& video,
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const std::string& file_name,
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int fps) {
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WriteVideoToFile(video, file_name, fps, /*isY4m=*/true);
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}
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void WriteYuvVideoToFile(const rtc::scoped_refptr<Video>& video,
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const std::string& file_name,
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int fps) {
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WriteVideoToFile(video, file_name, fps, /*isY4m=*/false);
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}
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} // namespace test
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} // namespace webrtc
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