| /* | |
| * 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 | |
| */ | |
| typedef struct AVMotionVector { | |
| /** | |
| * Where the current macroblock comes from; negative value when it comes | |
| * from the past, positive value when it comes from the future. | |
| * XXX: set exact relative ref frame reference instead of a +/- 1 "direction". | |
| */ | |
| int32_t source; | |
| /** | |
| * Width and height of the block. | |
| */ | |
| uint8_t w, h; | |
| /** | |
| * Absolute source position. Can be outside the frame area. | |
| */ | |
| int16_t src_x, src_y; | |
| /** | |
| * Absolute destination position. Can be outside the frame area. | |
| */ | |
| int16_t dst_x, dst_y; | |
| /** | |
| * Extra flag information. | |
| * Currently unused. | |
| */ | |
| uint64_t flags; | |
| /** | |
| * Motion vector | |
| * src_x = dst_x + motion_x / motion_scale | |
| * src_y = dst_y + motion_y / motion_scale | |
| */ | |
| int32_t motion_x, motion_y; | |
| uint16_t motion_scale; | |
| } AVMotionVector; | |