movenc: write hvcC tag for HEVC.

libavformat/Makefile

@@ -179,7 +179,7 @@ OBJS-$(CONFIG_MM_DEMUXER)                += mm.o
 OBJS-$(CONFIG_MMF_DEMUXER)               += mmf.o pcm.o
 OBJS-$(CONFIG_MMF_MUXER)                 += mmf.o
 OBJS-$(CONFIG_MOV_DEMUXER)               += mov.o isom.o mov_chan.o
-OBJS-$(CONFIG_MOV_MUXER)                 += movenc.o isom.o avc.o \
+OBJS-$(CONFIG_MOV_MUXER)                 += movenc.o isom.o avc.o hevc.o \
                                             movenchint.o mov_chan.o
 OBJS-$(CONFIG_MP2_MUXER)                 += mp3enc.o rawenc.o id3v2enc.o
 OBJS-$(CONFIG_MP3_DEMUXER)               += mp3dec.o

libavformat/hevc.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2014 Tim Walker <tdskywalker@gmail.com>
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * internal header for HEVC (de)muxer utilities
+ */
+
+#ifndef AVFORMAT_HEVC_H
+#define AVFORMAT_HEVC_H
+
+#include <stdint.h>
+#include "avio.h"
+
+/**
+ * Writes HEVC extradata (parameter sets, declarative SEI NAL units) to the
+ * provided AVIOContext.
+ *
+ * If the extradata is Annex B format, it gets converted to hvcC format before
+ * writing.
+ *
+ * @param pb address of the AVIOContext where the hvcC shall be written
+ * @param data address of the buffer holding the data needed to write the hvcC
+ * @param size size (in bytes) of the data buffer
+ * @param ps_array_completeness whether all parameter sets are in the hvcC (1)
+ *        or there may be additional parameter sets in the bitstream (0)
+ * @return 0 in case of success, a negative value corresponding to an AVERROR
+ *         code in case of failure
+ */
+int ff_isom_write_hvcc(AVIOContext *pb, const uint8_t *data,
+                       int size, int ps_array_completeness);
+
+#endif /* AVFORMAT_HEVC_H */

libavformat/movenc.c

@@ -39,6 +39,7 @@
 #include "libavutil/mathematics.h"
 #include "libavutil/opt.h"
 #include "libavutil/dict.h"
+#include "hevc.h"
 #include "rtpenc.h"
 #include "mov_chan.h"
 
@@ -685,6 +686,16 @@ static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
     return update_size(pb, pos);
 }
 
+static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
+{
+    int64_t pos = avio_tell(pb);
+
+    avio_wb32(pb, 0);
+    ffio_wfourcc(pb, "hvcC");
+    ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
+    return update_size(pb, pos);
+}
+
 /* also used by all avid codecs (dv, imx, meridien) and their variants */
 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
 {
@@ -1035,6 +1046,8 @@ static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
         mov_write_svq3_tag(pb);
     else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
         mov_write_avid_tag(pb, track);
+    else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
+        mov_write_hvcc_tag(pb, track);
     else if (track->enc->codec_id == AV_CODEC_ID_H264) {
         mov_write_avcc_tag(pb, track);
         if (track->mode == MODE_IPOD)