hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
33 lines
744 B
C++
33 lines
744 B
C++
// Copyright 2021 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//#define LOG_NDEBUG 0
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#define LOG_TAG "DmabufHelpers"
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#include <v4l2_codec2/plugin_store/DmabufHelpers.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <log/log.h>
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namespace android {
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std::optional<unique_id_t> getDmabufId(int dmabufFd) {
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struct stat sb {};
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if (fstat(dmabufFd, &sb) != 0) {
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return std::nullopt;
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}
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if (sb.st_size == 0) {
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ALOGE("Dma-buf size is 0. Please check your kernel is v5.3+");
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return std::nullopt;
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}
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return static_cast<unique_id_t>(sb.st_ino);
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}
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} // namespace android
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