| /* | |
| * RAW DNxHD (SMPTE VC-3) demuxer | |
| * Copyright (c) 2008 Baptiste Coudurier <[email protected]> | |
| * Copyright (c) 2009 Reimar Döffinger <[email protected]> | |
| * | |
| * 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 | |
| */ | |
| static int dnxhd_probe(const AVProbeData *p) | |
| { | |
| int w, h, compression_id; | |
| if (p->buf_size < 0x2c) | |
| return 0; | |
| if (ff_dnxhd_parse_header_prefix(p->buf) == 0) | |
| return 0; | |
| h = AV_RB16(p->buf + 0x18); | |
| w = AV_RB16(p->buf + 0x1a); | |
| if (!w || !h) | |
| return 0; | |
| compression_id = AV_RB32(p->buf + 0x28); | |
| if ((compression_id < 1235 || compression_id > 1260) && | |
| (compression_id < 1270 || compression_id > 1274)) | |
| return 0; | |
| return AVPROBE_SCORE_MAX; | |
| } | |
| FF_DEF_RAWVIDEO_DEMUXER(dnxhd, "raw DNxHD (SMPTE VC-3)", dnxhd_probe, NULL, AV_CODEC_ID_DNXHD) | |