/*
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* video_buffer.h - video buffer base
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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_VIDEO_BUFFER_H
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#define XCAM_VIDEO_BUFFER_H
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#include <xcam_std.h>
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#include <meta_data.h>
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#include <base/xcam_buffer.h>
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#include <list>
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namespace XCam {
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class VideoBuffer;
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typedef std::list<SmartPtr<VideoBuffer>> VideoBufferList;
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struct VideoBufferPlanarInfo
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: XCamVideoBufferPlanarInfo
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{
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VideoBufferPlanarInfo ();
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};
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struct VideoBufferInfo
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: XCamVideoBufferInfo
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{
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VideoBufferInfo ();
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bool init (
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uint32_t format,
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uint32_t width, uint32_t height,
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uint32_t aligned_width = 0, uint32_t aligned_height = 0, uint32_t size = 0, bool compacted = false);
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bool fill (const XCamVideoBufferInfo &info);
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bool get_planar_info (
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VideoBufferPlanarInfo &planar, const uint32_t index = 0) const;
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bool is_valid () const;
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};
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class VideoBuffer {
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public:
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explicit VideoBuffer (int64_t timestamp = InvalidTimestamp)
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: _timestamp (timestamp), _buf_type(0)
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{}
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explicit VideoBuffer (const VideoBufferInfo &info, int64_t timestamp = InvalidTimestamp)
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: _videoinfo (info)
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, _timestamp (timestamp)
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{}
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virtual ~VideoBuffer ();
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void set_parent (const SmartPtr<VideoBuffer> &parent) {
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_parent = parent;
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}
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virtual uint8_t *map () = 0;
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virtual bool unmap () = 0;
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virtual int get_fd () = 0;
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const VideoBufferInfo & get_video_info () const {
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return _videoinfo;
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}
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int64_t get_timestamp () const {
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return _timestamp;
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}
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void set_video_info (const VideoBufferInfo &info) {
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_videoinfo = info;
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}
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void set_timestamp (int64_t timestamp) {
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_timestamp = timestamp;
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}
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uint32_t get_size () const {
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return _videoinfo.size;
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}
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void set_sequence (uint32_t sequence) {
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_sequence = sequence;
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}
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uint32_t get_sequence () const {
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return _sequence;
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}
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bool attach_buffer (const SmartPtr<VideoBuffer>& buf);
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bool detach_buffer (const SmartPtr<VideoBuffer>& buf);
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bool copy_attaches (const SmartPtr<VideoBuffer>& buf);
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void clear_attached_buffers ();
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template <typename BufType>
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SmartPtr<BufType> find_typed_attach ();
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bool add_metadata (const SmartPtr<MetaData>& data);
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bool remove_metadata (const SmartPtr<MetaData>& data);
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void clear_all_metadata ();
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template <typename MetaType>
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SmartPtr<MetaType> find_typed_metadata ();
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int _buf_type;
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private:
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XCAM_DEAD_COPY (VideoBuffer);
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protected:
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VideoBufferList _attached_bufs;
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MetaDataList _metadata_list;
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private:
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VideoBufferInfo _videoinfo;
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int64_t _timestamp; // in microseconds
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uint32_t _sequence;
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SmartPtr<VideoBuffer> _parent;
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};
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template <typename BufType>
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SmartPtr<BufType> VideoBuffer::find_typed_attach ()
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{
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for (VideoBufferList::iterator iter = _attached_bufs.begin ();
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iter != _attached_bufs.end (); ++iter) {
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SmartPtr<BufType> buf = (*iter).dynamic_cast_ptr<BufType> ();
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if (buf.ptr ())
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return buf;
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}
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return NULL;
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}
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template <typename MetaType>
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SmartPtr<MetaType> VideoBuffer::find_typed_metadata ()
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{
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for (MetaDataList::iterator iter = _metadata_list.begin ();
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iter != _metadata_list.end (); ++iter) {
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SmartPtr<MetaType> buf = (*iter).dynamic_cast_ptr<MetaType> ();
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if (buf.ptr ())
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return buf;
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}
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return NULL;
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}
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XCamVideoBuffer *convert_to_external_buffer (const SmartPtr<VideoBuffer> &buf);
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};
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#endif //XCAM_VIDEO_BUFFER_H
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