mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-02 03:06:28 +02:00
87fe0bbd69
Somehow 2 different identifiers have come into existence which makes supporting both until the next major version bump required I did not investigate how exactly that did happen. wm4, j-b and smarter prefer hevc. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/*
|
|
* 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 h265_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(h265 , "raw H.265 video", h265_probe, "h265,265,hevc", AV_CODEC_ID_HEVC)
|