2 * RAW HEVC video demuxer
3 * Copyright (c) 2013 Dirk Farin <dirk.farin@gmail.com>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavcodec/hevc.h"
27 static int hevc_probe(AVProbeData
*p
)
30 int vps
= 0, sps
= 0, pps
= 0, irap
= 0;
33 for (i
= 0; i
< p
->buf_size
- 1; i
++) {
34 code
= (code
<< 8) + p
->buf
[i
];
35 if ((code
& 0xffffff00) == 0x100) {
36 uint8_t nal2
= p
->buf
[i
+ 1];
37 int type
= (code
& 0x7E) >> 1;
39 if (code
& 0x81) // forbidden and reserved zero bits
42 if (nal2
& 0xf8) // reserved zero
46 case NAL_VPS
: vps
++; break;
47 case NAL_SPS
: sps
++; break;
48 case NAL_PPS
: pps
++; break;
54 case NAL_IDR_W_RADL
: irap
++; break;
59 if (vps
&& sps
&& pps
&& irap
)
60 return AVPROBE_SCORE_EXTENSION
+ 1; // 1 more than .mpg
64 FF_DEF_RAWVIDEO_DEMUXER(hevc
, "raw HEVC video", hevc_probe
, "hevc,h265,265", AV_CODEC_ID_HEVC
)