diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2013-10-15 23:18:48 +0400 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2013-10-15 23:23:57 +0400 |
commit | 12cc3bf29ae4c0bc843f48efaad1df3e88fce63a (patch) | |
tree | 6b25599273df83080635a54886b1fb408582640c /libavformat/hevcdec.c | |
parent | 59352a07d856a67b81fe3480ac4644a92beac113 (diff) |
avformat: rename a few more h.265 to HEVC
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/hevcdec.c')
-rw-r--r-- | libavformat/hevcdec.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libavformat/hevcdec.c b/libavformat/hevcdec.c new file mode 100644 index 0000000000..51e1504459 --- /dev/null +++ b/libavformat/hevcdec.c @@ -0,0 +1,60 @@ +/* + * RAW H.265 video demuxer + * Copyright (c) 2013 Dirk Farin <dirk.farin@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 "avformat.h" +#include "rawdec.h" + +static int hevc_probe(AVProbeData *p) +{ + uint32_t code= -1; + int vps=0, sps=0, pps=0, idr=0; + int i; + + for(i=0; i<p->buf_size-1; i++){ + code = (code<<8) + p->buf[i]; + if ((code & 0xffffff00) == 0x100) { + uint8_t nal2 = p->buf[i+1]; + int type = (code & 0x7E)>>1; + + if (code & 0x81) // forbidden and reserved zero bits + return 0; + + if (nal2 & 0xf8) // reserved zero + return 0; + + switch (type) { + case 32: vps++; break; + case 33: sps++; break; + case 34: pps++; break; + case 19: + case 20: idr++; break; + } + } + } + + // printf("vps=%d, sps=%d, pps=%d, idr=%d\n", vps, sps, pps, idr); + + if (vps && sps && pps && idr) + return AVPROBE_SCORE_EXTENSION + 1; // 1 more than .mpg + return 0; +} + +FF_DEF_RAWVIDEO_DEMUXER(hevc , "raw HEVC video", hevc_probe, "h265,265,hevc", AV_CODEC_ID_HEVC) |