/*
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* v4l2_buffer_proxy.h - v4l2 buffer proxy
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*
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* Copyright (c) 2014-2015 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Author: Wind Yuan <feng.yuan@intel.com>
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*/
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#ifndef XCAM_V4L2_BUFFER_PROXY_H
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#define XCAM_V4L2_BUFFER_PROXY_H
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#include <xcam_std.h>
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#include <buffer_pool.h>
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#include <linux/videodev2.h>
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namespace XCam {
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class V4l2Device;
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class V4l2Buffer
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: public BufferData
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{
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public:
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explicit V4l2Buffer (const struct v4l2_buffer &buf, const struct v4l2_format &format);
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virtual ~V4l2Buffer ();
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const struct v4l2_buffer & get_buf () const {
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return _buf;
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}
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void set_timestamp (const struct timeval &time) {
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_buf.timestamp = time;
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}
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void set_timecode (const struct v4l2_timecode &code) {
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_buf.timecode = code;
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}
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void set_sequence (const uint32_t sequence) {
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_buf.sequence = sequence;
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}
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void set_length (const uint32_t value) {
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_buf.length = value;
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}
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void reset () {
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xcam_mem_clear (_buf.timestamp);
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xcam_mem_clear (_buf.timecode);
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_buf.sequence = 0;
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//_buf.length = 0;
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}
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const struct v4l2_format & get_format () const {
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return _format;
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}
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// derived from BufferData
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virtual uint8_t *map ();
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virtual bool unmap ();
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virtual int get_fd ();
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private:
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XCAM_DEAD_COPY (V4l2Buffer);
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private:
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struct v4l2_buffer _buf;
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struct v4l2_format _format;
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};
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class V4l2BufferProxy
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: public BufferProxy
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{
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public:
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explicit V4l2BufferProxy (SmartPtr<V4l2Buffer> &buf, SmartPtr<V4l2Device> &device);
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~V4l2BufferProxy ();
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int get_v4l2_buf_index () {
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return get_v4l2_buf().index;
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}
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enum v4l2_memory get_v4l2_mem_type () {
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return (enum v4l2_memory)(get_v4l2_buf().memory);
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}
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int get_v4l2_buf_length () {
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return get_v4l2_buf().length;
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}
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int get_v4l2_dma_fd () {
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return get_v4l2_buf().m.fd;
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}
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uintptr_t get_v4l2_userptr () {
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return get_v4l2_buf().m.userptr;
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}
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private:
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const struct v4l2_buffer & get_v4l2_buf ();
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void v4l2_format_to_video_info (
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const struct v4l2_format &format, VideoBufferInfo &info);
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XCAM_DEAD_COPY (V4l2BufferProxy);
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private:
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SmartPtr<V4l2Device> _device;
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};
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};
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#endif //XCAM_V4L2_BUFFER_PROXY_H
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