cam: Rename BufferWriter to FileSink

Rename the BufferWriter class to FileSink to establish a common naming
scheme for all sinks.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>

1 files changed, 0 insertions, 128 deletions

diff --git a/src/cam/buffer_writer.cpp b/src/cam/buffer_writer.cpp
deleted file mode 100644
index 2f4b2b02..00000000
--- a/src/cam/buffer_writer.cpp
+++ /dev/null
@@ -1,128 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (C) 2019, Google Inc.
- *
- * buffer_writer.cpp - Buffer writer
- */
-
-#include <fcntl.h>
-#include <iomanip>
-#include <iostream>
-#include <sstream>
-#include <string.h>
-#include <sys/mman.h>
-#include <unistd.h>
-
-#include <libcamera/camera.h>
-
-#include "buffer_writer.h"
-
-using namespace libcamera;
-
-BufferWriter::BufferWriter(const std::string &pattern)
-	: pattern_(pattern)
-{
-}
-
-BufferWriter::~BufferWriter()
-{
-	for (auto &iter : mappedBuffers_) {
-		void *memory = iter.second.first;
-		unsigned int length = iter.second.second;
-		munmap(memory, length);
-	}
-	mappedBuffers_.clear();
-}
-
-int BufferWriter::configure(const libcamera::CameraConfiguration &config)
-{
-	int ret = FrameSink::configure(config);
-	if (ret < 0)
-		return ret;
-
-	streamNames_.clear();
-	for (unsigned int index = 0; index < config.size(); ++index) {
-		const StreamConfiguration &cfg = config.at(index);
-		streamNames_[cfg.stream()] = "stream" + std::to_string(index);
-	}
-
-	return 0;
-}
-
-void BufferWriter::mapBuffer(FrameBuffer *buffer)
-{
-	for (const FrameBuffer::Plane &plane : buffer->planes()) {
-		void *memory = mmap(NULL, plane.length, PROT_READ, MAP_SHARED,
-				    plane.fd.fd(), 0);
-
-		mappedBuffers_[plane.fd.fd()] =
-			std::make_pair(memory, plane.length);
-	}
-}
-
-bool BufferWriter::processRequest(Request *request)
-{
-	for (auto [stream, buffer] : request->buffers())
-		writeBuffer(stream, buffer);
-
-	return true;
-}
-
-void BufferWriter::writeBuffer(const Stream *stream, FrameBuffer *buffer)
-{
-	std::string filename;
-	size_t pos;
-	int fd, ret = 0;
-
-	if (!pattern_.empty())
-		filename = pattern_;
-
-	if (filename.empty() || filename.back() == '/')
-		filename += "frame-#.bin";
-
-	pos = filename.find_first_of('#');
-	if (pos != std::string::npos) {
-		std::stringstream ss;
-		ss << streamNames_[stream] << "-" << std::setw(6)
-		   << std::setfill('0') << buffer->metadata().sequence;
-		filename.replace(pos, 1, ss.str());
-	}
-
-	fd = open(filename.c_str(), O_CREAT | O_WRONLY |
-		  (pos == std::string::npos ? O_APPEND : O_TRUNC),
-		  S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
-	if (fd == -1) {
-		ret = -errno;
-		std::cerr << "failed to open file " << filename << ": "
-			  << strerror(-ret) << std::endl;
-		return;
-	}
-
-	for (unsigned int i = 0; i < buffer->planes().size(); ++i) {
-		const FrameBuffer::Plane &plane = buffer->planes()[i];
-		const FrameMetadata::Plane &meta = buffer->metadata().planes[i];
-
-		void *data = mappedBuffers_[plane.fd.fd()].first;
-		unsigned int length = std::min(meta.bytesused, plane.length);
-
-		if (meta.bytesused > plane.length)
-			std::cerr << "payload size " << meta.bytesused
-				  << " larger than plane size " << plane.length
-				  << std::endl;
-
-		ret = ::write(fd, data, length);
-		if (ret < 0) {
-			ret = -errno;
-			std::cerr << "write error: " << strerror(-ret)
-				  << std::endl;
-			break;
-		} else if (ret != (int)length) {
-			std::cerr << "write error: only " << ret
-				  << " bytes written instead of "
-				  << length << std::endl;
-			break;
-		}
-	}
-
-	close(fd);
-}