[FFmpeg-cvslog] avformat: H265 demuxer

[Dirk Farin]

ffmpeg | branch: master | Dirk Farin <dirk.farin at gmail.com> | Mon Sep  2 14:33:14 2013 +0200| [902a5fa7228d92bf7e0a8f523a25cf72d31afab4] | committer: Michael Niedermayer

avformat: H265 demuxer

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=902a5fa7228d92bf7e0a8f523a25cf72d31afab4
---

 libavcodec/avcodec.h     |    1 +
 libavcodec/codec_desc.c  |    7 ++++++
 libavformat/Makefile     |    1 +
 libavformat/allformats.c |    1 +
 libavformat/h265dec.c    |   60 ++++++++++++++++++++++++++++++++++++++++++++++
 libavformat/version.h    |    2 +-
 6 files changed, 71 insertions(+), 1 deletion(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 070ce7a..e1bb79f 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -300,6 +300,7 @@ enum AVCodecID {
     AV_CODEC_ID_SNOW       = MKBETAG('S','N','O','W'),
     AV_CODEC_ID_WEBP       = MKBETAG('W','E','B','P'),
     AV_CODEC_ID_SMVJPEG    = MKBETAG('S','M','V','J'),
+    AV_CODEC_ID_H265       = MKBETAG('H','2','6','5'),
 
     /* various PCM "codecs" */
     AV_CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at the start of audio codecs
diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c
index 523b617..1e4cf2e 100644
--- a/libavcodec/codec_desc.c
+++ b/libavcodec/codec_desc.c
@@ -226,6 +226,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
         .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS,
     },
     {
+        .id        = AV_CODEC_ID_H265,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "h265",
+        .long_name = NULL_IF_CONFIG_SMALL("H.265 / HEVC"),
+        .props     = AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS,
+    },
+    {
         .id        = AV_CODEC_ID_INDEO3,
         .type      = AVMEDIA_TYPE_VIDEO,
         .name      = "indeo3",
diff --git a/libavformat/Makefile b/libavformat/Makefile
index 35d49f7..ceffa78 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -166,6 +166,7 @@ OBJS-$(CONFIG_H263_DEMUXER)              += h263dec.o rawdec.o
 OBJS-$(CONFIG_H263_MUXER)                += rawenc.o
 OBJS-$(CONFIG_H264_DEMUXER)              += h264dec.o rawdec.o
 OBJS-$(CONFIG_H264_MUXER)                += rawenc.o
+OBJS-$(CONFIG_H265_DEMUXER)              += h265dec.o rawdec.o
 OBJS-$(CONFIG_HLS_DEMUXER)               += hls.o
 OBJS-$(CONFIG_HLS_MUXER)                 += hlsenc.o
 OBJS-$(CONFIG_ICO_DEMUXER)               += icodec.o
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index b3b2a3b..03c883b 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -135,6 +135,7 @@ void av_register_all(void)
     REGISTER_MUXDEMUX(H261,             h261);
     REGISTER_MUXDEMUX(H263,             h263);
     REGISTER_MUXDEMUX(H264,             h264);
+    REGISTER_DEMUXER (H265,             h265);
     REGISTER_MUXDEMUX(HLS,              hls);
     REGISTER_MUXDEMUX(ICO,              ico);
     REGISTER_DEMUXER (IDCIN,            idcin);
diff --git a/libavformat/h265dec.c b/libavformat/h265dec.c
new file mode 100644
index 0000000..1eb8402
--- /dev/null
+++ b/libavformat/h265dec.c
@@ -0,0 +1,60 @@
+/*
+ * RAW H.265 video demuxer
+ * Copyright (c) 2013 Dirk Farin <dirk.farin at 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_H265)
diff --git a/libavformat/version.h b/libavformat/version.h
index d735f9d..47a022b 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -30,7 +30,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 55
-#define LIBAVFORMAT_VERSION_MINOR 15
+#define LIBAVFORMAT_VERSION_MINOR 16
 #define LIBAVFORMAT_VERSION_MICRO 100
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \