/*
|
* v4l2_buffer_proxy.h - v4l2 buffer proxy
|
*
|
* Copyright (c) 2014-2015 Intel Corporation
|
*
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
* you may not use this file except in compliance with the License.
|
* You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations under the License.
|
*
|
* Author: Wind Yuan <feng.yuan@intel.com>
|
*/
|
|
#ifndef XCAM_V4L2_BUFFER_PROXY_H
|
#define XCAM_V4L2_BUFFER_PROXY_H
|
|
#include <xcam_std.h>
|
#include <buffer_pool.h>
|
#include <linux/videodev2.h>
|
|
namespace XCam {
|
|
class V4l2Device;
|
|
class V4l2Buffer
|
: public BufferData
|
{
|
public:
|
explicit V4l2Buffer (const struct v4l2_buffer &buf, const struct v4l2_format &format);
|
virtual ~V4l2Buffer ();
|
|
const struct v4l2_buffer & get_buf () const {
|
return _buf;
|
}
|
|
void set_timestamp (const struct timeval &time) {
|
_buf.timestamp = time;
|
}
|
|
void set_timecode (const struct v4l2_timecode &code) {
|
_buf.timecode = code;
|
}
|
|
void set_sequence (const uint32_t sequence) {
|
_buf.sequence = sequence;
|
}
|
|
void set_length (const uint32_t value) {
|
_length = value;
|
}
|
|
uint32_t get_length () const {
|
return _length;
|
}
|
|
void set_queued (bool queued) {
|
if (queued)
|
_queued = 1;
|
else
|
_queued = 0;
|
}
|
|
bool get_queued () const {
|
return !!_queued;
|
}
|
|
void set_expbuf_fd (const int fd) {
|
_expbuf_fd = fd;
|
}
|
|
int get_expbuf_fd () {
|
return _expbuf_fd;
|
}
|
|
void set_expbuf_usrptr(uintptr_t ptr) {
|
_expbuf_usrptr = ptr;
|
}
|
|
uintptr_t get_expbuf_usrptr () {
|
return _expbuf_usrptr;
|
}
|
|
void reset () {
|
xcam_mem_clear (_buf.timestamp);
|
xcam_mem_clear (_buf.timecode);
|
_buf.sequence = 0;
|
_queued = 0;
|
}
|
|
const struct v4l2_format & get_format () const {
|
return _format;
|
}
|
|
// derived from BufferData
|
virtual uint8_t *map ();
|
virtual bool unmap ();
|
virtual int get_fd ();
|
void set_reserved(uintptr_t reserved) {
|
_reserved = reserved;
|
}
|
uintptr_t get_reserved() {
|
return _reserved;
|
}
|
|
private:
|
XCAM_DEAD_COPY (V4l2Buffer);
|
|
private:
|
struct v4l2_buffer _buf;
|
struct v4l2_format _format;
|
int _length;
|
int _expbuf_fd;
|
uintptr_t _expbuf_usrptr;
|
std::atomic<char> _queued;
|
uintptr_t _reserved;
|
};
|
|
class V4l2BufferProxy
|
: public BufferProxy
|
{
|
public:
|
explicit V4l2BufferProxy (SmartPtr<V4l2Buffer> &buf, SmartPtr<V4l2Device> &device);
|
|
~V4l2BufferProxy ();
|
|
int get_v4l2_buf_index () {
|
return get_v4l2_buf().index;
|
}
|
|
enum v4l2_memory get_v4l2_mem_type () {
|
return (enum v4l2_memory)(get_v4l2_buf().memory);
|
}
|
|
int get_v4l2_buf_length () {
|
return get_v4l2_buf().length;
|
}
|
|
int get_v4l2_buf_planar_length (int planar_index) {
|
return get_v4l2_buf().m.planes[planar_index].length;
|
}
|
|
int get_expbuf_fd () {
|
SmartPtr<V4l2Buffer> v4l2buf = get_buffer_data().dynamic_cast_ptr<V4l2Buffer> ();
|
XCAM_ASSERT (v4l2buf.ptr());
|
return v4l2buf->get_expbuf_fd();
|
}
|
|
uintptr_t get_v4l2_userptr () {
|
#if 0
|
if (V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE == get_v4l2_buf().type ||
|
V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE == get_v4l2_buf().type)
|
return get_v4l2_buf().m.planes[0].m.userptr;
|
else
|
return get_v4l2_buf().m.userptr;
|
#else
|
SmartPtr<V4l2Buffer> v4l2buf = get_buffer_data().dynamic_cast_ptr<V4l2Buffer> ();
|
XCAM_ASSERT (v4l2buf.ptr());
|
return v4l2buf->get_expbuf_usrptr();
|
#endif
|
}
|
|
uintptr_t get_v4l2_planar_userptr (int planar_index) {
|
if (V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE == get_v4l2_buf().type ||
|
V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE == get_v4l2_buf().type)
|
return get_v4l2_buf().m.planes[planar_index].m.userptr;
|
else
|
return get_v4l2_buf().m.userptr;
|
}
|
|
uint32_t get_sequence () {
|
return get_v4l2_buf().sequence;
|
}
|
|
uintptr_t get_reserved() {
|
SmartPtr<V4l2Buffer> v4l2buf = get_buffer_data().dynamic_cast_ptr<V4l2Buffer> ();
|
XCAM_ASSERT (v4l2buf.ptr());
|
return v4l2buf->get_reserved();
|
}
|
|
private:
|
const struct v4l2_buffer & get_v4l2_buf ();
|
|
void v4l2_format_to_video_info (
|
const struct v4l2_format &format, VideoBufferInfo &info);
|
|
XCAM_DEAD_COPY (V4l2BufferProxy);
|
|
private:
|
SmartPtr<V4l2Device> _device;
|
};
|
};
|
|
#endif //XCAM_V4L2_BUFFER_PROXY_H
|
