129 lines
3.2 KiB
C++
129 lines
3.2 KiB
C++
/*
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* Copyright (C) 2014-2025 Amlogic, Inc. All rights reserved.
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*
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* All information contained herein is Amlogic confidential.
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*
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* This software is provided to you pursuant to Software License Agreement
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* (SLA) with Amlogic Inc ("Amlogic"). This software may be used
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* only in accordance with the terms of this agreement.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification is strictly prohibited without prior written permission from
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* Amlogic.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define LOG_TAG "FileSource"
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#include "FileSource.h"
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#include <fcntl.h>
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#include <unistd.h>
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#include <utils/CallStack.h>
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#include <string>
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#include "IpcDataTypes.h"
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#include "SubtitleLog.h"
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FileSource::FileSource(int fd, int extFd) {
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SUBTITLE_LOGI("mFd=%d, extFd=%d", fd, extFd);
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mFd = fd;
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if (mFd > 0) {
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::lseek(mFd, 0, SEEK_SET);
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}
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// mExtraFd is used for SUB_IDX subtitle, which has one index file
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// and one sub data file
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if (extFd > 0) {
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mExtraFd = extFd;
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}
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}
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FileSource::~FileSource() {
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SUBTITLE_LOGI("mFd=%d", mFd);
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if (mFd > 0) {
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::close(mFd);
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mFd = -1;
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}
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if (mExtraFd > 0) {
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::close(mExtraFd);
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}
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}
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int FileSource::onData(const char* buffer, int len) {
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(void)buffer;
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(void)len;
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return 0;
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}
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bool FileSource::start() {
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SUBTITLE_LOGI_FUNC_IN();
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return true;
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}
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bool FileSource::stop() {
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SUBTITLE_LOGI("mFd=%d", mFd);
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return true;
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}
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SubtitleIOType FileSource::type() {
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return E_SUBTITLE_FILE;
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}
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bool FileSource::isFileAvailable() {
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SUBTITLE_LOGI_FUNC_IN();
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return (mDumpFd > 0);
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}
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size_t FileSource::lseek(int offSet, int whence) {
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SUBTITLE_LOGI_FUNC_IN();
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if (mFd > 0) {
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return ::lseek(mFd, offSet, whence);
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} else {
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return 0;
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}
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}
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size_t FileSource::availableDataSize() {
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int len = 0;
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if (mFd > 0) {
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len = ::lseek(mFd, 0L, SEEK_END);
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lseek(0, SEEK_SET);
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}
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return len;
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}
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size_t FileSource::read(void* buffer, size_t size) {
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size_t ret = ::read(mFd, buffer, size);
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if (ret < 0) {
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SUBTITLE_LOGE("%m");
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// Read one more time
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if (errno == EINTR || errno == EAGAIN) {
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ret = ::read(mFd, buffer, size);
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}
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}
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if (ret != size) {
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SUBTITLE_LOGI("requested size=%zu, but ret=%zu", size, ret);
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}
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return ret;
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}
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void FileSource::dump(int fd, const char* prefix) {
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(void)prefix;
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dprintf(fd, "\nFileSource:\n");
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}
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