/* * 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 */ #include <stdint.h> #include <string.h> #include "common.h" #include "mem.h" #include "stereo3d.h" AVStereo3D *av_stereo3d_alloc(void) { return av_mallocz(sizeof(AVStereo3D)); } AVStereo3D *av_stereo3d_create_side_data(AVFrame *frame) { AVFrameSideData *side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_STEREO3D, sizeof(AVStereo3D)); if (!side_data) return NULL; memset(side_data->data, 0, sizeof(AVStereo3D)); return (AVStereo3D *)side_data->data; } static const char *stereo3d_type_names[] = { [AV_STEREO3D_2D] = "2D", [AV_STEREO3D_SIDEBYSIDE] = "side by side", [AV_STEREO3D_TOPBOTTOM] = "top and bottom", [AV_STEREO3D_FRAMESEQUENCE] = "frame alternate", [AV_STEREO3D_CHECKERBOARD] = "checkerboard", [AV_STEREO3D_SIDEBYSIDE_QUINCUNX] = "side by side (quincunx subsampling)", [AV_STEREO3D_LINES] = "interleaved lines", [AV_STEREO3D_COLUMNS] = "interleaved columns", }; const char *av_stereo3d_type_name(unsigned int type) { if (type >= FF_ARRAY_ELEMS(stereo3d_type_names)) return "unknown"; return stereo3d_type_names[type]; } int av_stereo3d_from_name(const char *name) { int i; for (i = 0; i < FF_ARRAY_ELEMS(stereo3d_type_names); i++) { size_t len = strlen(stereo3d_type_names[i]); if (!strncmp(stereo3d_type_names[i], name, len)) return i; } return -1; }