aboutsummaryrefslogtreecommitdiffstats
path: root/libavformat/hevcdec.c
diff options
context:
space:
mode:
authorMichael Niedermayer <michaelni@gmx.at>2013-10-15 21:18:48 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-10-15 21:23:57 +0200
commit12cc3bf29ae4c0bc843f48efaad1df3e88fce63a (patch)
tree6b25599273df83080635a54886b1fb408582640c /libavformat/hevcdec.c
parent59352a07d856a67b81fe3480ac4644a92beac113 (diff)
downloadffmpeg-12cc3bf29ae4c0bc843f48efaad1df3e88fce63a.tar.gz
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.c60
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)