| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * RAW DNxHD (SMPTE VC-3) demuxer | ||
| 3 | * Copyright (c) 2008 Baptiste Coudurier <baptiste.coudurier@gmail.com> | ||
| 4 | * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de> | ||
| 5 | * | ||
| 6 | * This file is part of FFmpeg. | ||
| 7 | * | ||
| 8 | * FFmpeg is free software; you can redistribute it and/or | ||
| 9 | * modify it under the terms of the GNU Lesser General Public | ||
| 10 | * License as published by the Free Software Foundation; either | ||
| 11 | * version 2.1 of the License, or (at your option) any later version. | ||
| 12 | * | ||
| 13 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * Lesser General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU Lesser General Public | ||
| 19 | * License along with FFmpeg; if not, write to the Free Software | ||
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 21 | */ | ||
| 22 | |||
| 23 | #include "libavutil/intreadwrite.h" | ||
| 24 | #include "avformat.h" | ||
| 25 | #include "rawdec.h" | ||
| 26 | #include "libavcodec/dnxhddata.h" | ||
| 27 | |||
| 28 | 7186 | static int dnxhd_probe(const AVProbeData *p) | |
| 29 | { | ||
| 30 | int w, h, compression_id; | ||
| 31 |
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7186 | if (p->buf_size < 0x2c) |
| 32 | 2 | return 0; | |
| 33 |
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7184 | if (ff_dnxhd_parse_header_prefix(p->buf) == 0) |
| 34 | 7138 | return 0; | |
| 35 | 46 | h = AV_RB16(p->buf + 0x18); | |
| 36 | 46 | w = AV_RB16(p->buf + 0x1a); | |
| 37 |
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46 | if (!w || !h) |
| 38 | ✗ | return 0; | |
| 39 | 46 | compression_id = AV_RB32(p->buf + 0x28); | |
| 40 |
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46 | if ((compression_id < 1235 || compression_id > 1260) && |
| 41 |
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35 | (compression_id < 1270 || compression_id > 1274)) |
| 42 | ✗ | return 0; | |
| 43 | 46 | return AVPROBE_SCORE_MAX; | |
| 44 | } | ||
| 45 | |||
| 46 | FF_DEF_RAWVIDEO_DEMUXER(dnxhd, "raw DNxHD (SMPTE VC-3)", dnxhd_probe, NULL, AV_CODEC_ID_DNXHD) | ||
| 47 |