Edit File: stereo3d.h
/* * Copyright (c) 2013 Vittorio Giovara <vittorio.giovara@gmail.com> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVUTIL_STEREO3D_H #define AVUTIL_STEREO3D_H #include <stdint.h> #include "frame.h" /** * List of possible 3D Types */ enum AVStereo3DType { /** * Video is not stereoscopic (and metadata has to be there). */ AV_STEREO3D_2D, /** * Views are next to each other. * * LLLLRRRR * LLLLRRRR * LLLLRRRR * ... */ AV_STEREO3D_SIDEBYSIDE, /** * Views are on top of each other. * * LLLLLLLL * LLLLLLLL * RRRRRRRR * RRRRRRRR */ AV_STEREO3D_TOPBOTTOM, /** * Views are alternated temporally. * * frame0 frame1 frame2 ... * LLLLLLLL RRRRRRRR LLLLLLLL * LLLLLLLL RRRRRRRR LLLLLLLL * LLLLLLLL RRRRRRRR LLLLLLLL * ... ... ... */ AV_STEREO3D_FRAMESEQUENCE, /** * Views are packed in a checkerboard-like structure per pixel. * * LRLRLRLR * RLRLRLRL * LRLRLRLR * ... */ AV_STEREO3D_CHECKERBOARD, /** * Views are next to each other, but when upscaling * apply a checkerboard pattern. * * LLLLRRRR L L L L R R R R * LLLLRRRR => L L L L R R R R * LLLLRRRR L L L L R R R R * LLLLRRRR L L L L R R R R */ AV_STEREO3D_SIDEBYSIDE_QUINCUNX, /** * Views are packed per line, as if interlaced. * * LLLLLLLL * RRRRRRRR * LLLLLLLL * ... */ AV_STEREO3D_LINES, /** * Views are packed per column. * * LRLRLRLR * LRLRLRLR * LRLRLRLR * ... */ AV_STEREO3D_COLUMNS, }; /** * Inverted views, Right/Bottom represents the left view. */ #define AV_STEREO3D_FLAG_INVERT (1 << 0) /** * Stereo 3D type: this structure describes how two videos are packed * within a single video surface, with additional information as needed. * * @note The struct must be allocated with av_stereo3d_alloc() and * its size is not a part of the public ABI. */ typedef struct AVStereo3D { /** * How views are packed within the video. */ enum AVStereo3DType type; /** * Additional information about the frame packing. */ int flags; } AVStereo3D; /** * Allocate an AVStereo3D structure and set its fields to default values. * The resulting struct can be freed using av_freep(). * * @return An AVStereo3D filled with default values or NULL on failure. */ AVStereo3D *av_stereo3d_alloc(void); /** * Allocate a complete AVFrameSideData and add it to the frame. * * @param frame The frame which side data is added to. * * @return The AVStereo3D structure to be filled by caller. */ AVStereo3D *av_stereo3d_create_side_data(AVFrame *frame); #endif /* AVUTIL_STEREO3D_H */