2013-06-21 05:18:45 +00:00
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/* file-mp4.c
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2013-06-14 15:33:58 +00:00
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* routines for dissection of MP4 files
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2014-03-13 17:52:43 +00:00
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* Copyright 2013-2014, Martin Kaiser <martin@kaiser.cx>
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2013-06-14 15:33:58 +00:00
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* this dissector is based on
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* ISO/IEC 14496-12 (ISO base media file format) and
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* ISO/IEC 14496-14 (MP4 file format)
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*
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* at the moment, it dissects the basic box structure and the payload of
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* some simple boxes */
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#include "config.h"
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2014-12-22 21:51:34 +00:00
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#include <math.h>
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2014-12-20 21:23:59 +00:00
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2013-06-14 15:33:58 +00:00
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#include <epan/packet.h>
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2014-12-20 21:23:59 +00:00
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#include <epan/expert.h>
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2013-06-14 15:33:58 +00:00
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2014-03-14 08:55:39 +00:00
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#define MAKE_TYPE_VAL(a, b, c, d) ((a)<<24 | (b)<<16 | (c)<<8 | (d))
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2013-06-14 15:33:58 +00:00
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2013-12-20 06:30:13 +00:00
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void proto_register_mp4(void);
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void proto_reg_handoff_mp4(void);
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2014-07-24 16:17:05 +00:00
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static gint dissect_mp4_box(guint32 parent_box_type _U_,
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tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree);
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2013-06-14 15:33:58 +00:00
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static int proto_mp4 = -1;
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static gint ett_mp4 = -1;
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static gint ett_mp4_box = -1;
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static int hf_mp4_box_size = -1;
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static int hf_mp4_box_type_str = -1;
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2013-06-19 22:26:12 +00:00
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static int hf_mp4_box_largesize = -1;
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2013-06-14 15:33:58 +00:00
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static int hf_mp4_full_box_ver = -1;
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2014-07-24 16:24:57 +00:00
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static int hf_mp4_full_box_flags = -1;
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2014-09-26 23:28:01 +00:00
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static int hf_mp4_full_box_flags_media_data_location = -1;
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2013-06-14 15:33:58 +00:00
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static int hf_mp4_ftyp_brand = -1;
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static int hf_mp4_ftyp_ver = -1;
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static int hf_mp4_ftyp_add_brand = -1;
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2014-11-29 18:00:58 +00:00
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static int hf_mp4_stsz_sample_size = -1;
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static int hf_mp4_stsz_sample_count = -1;
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static int hf_mp4_stsz_entry_size = -1;
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2014-11-29 11:58:20 +00:00
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static int hf_mp4_mvhd_creat_time = -1;
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static int hf_mp4_mvhd_mod_time = -1;
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static int hf_mp4_mvhd_timescale = -1;
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static int hf_mp4_mvhd_duration = -1;
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static int hf_mp4_mvhd_rate = -1;
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static int hf_mp4_mvhd_vol = -1;
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static int hf_mp4_mvhd_next_tid = -1;
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2013-06-14 15:33:58 +00:00
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static int hf_mp4_mfhd_seq_num = -1;
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2014-03-14 09:14:14 +00:00
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static int hf_mp4_tkhd_creat_time = -1;
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static int hf_mp4_tkhd_mod_time = -1;
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static int hf_mp4_tkhd_track_id = -1;
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static int hf_mp4_tkhd_duration = -1;
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static int hf_mp4_tkhd_width = -1;
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static int hf_mp4_tkhd_height = -1;
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2014-07-24 10:12:31 +00:00
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static int hf_mp4_hdlr_type = -1;
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static int hf_mp4_hdlr_name = -1;
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2014-07-24 16:17:05 +00:00
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static int hf_mp4_dref_entry_cnt = -1;
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2014-07-24 19:39:48 +00:00
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static int hf_mp4_stsd_entry_cnt = -1;
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2013-06-14 15:33:58 +00:00
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2013-06-19 22:26:12 +00:00
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static expert_field ei_mp4_box_too_large = EI_INIT;
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2014-11-29 11:58:20 +00:00
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static expert_field ei_mp4_mvhd_next_tid_unknown = EI_INIT;
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2013-06-19 22:26:12 +00:00
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2013-06-14 15:33:58 +00:00
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/* a box must at least have a 32bit len field and a 32bit type */
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2013-06-19 22:26:12 +00:00
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#define MIN_BOX_SIZE 8
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/* an extended box has the first length field set to 1 */
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#define BOX_SIZE_EXTENDED 1
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2013-06-14 15:33:58 +00:00
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/* the box type is stored as four text characters
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it is in network byte order and contains only printable characters
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for our internal handling, we convert this to a 32bit value */
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#define BOX_TYPE_NONE 0x0 /* used for parent_box_type of a top-level box */
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#define BOX_TYPE_FTYP MAKE_TYPE_VAL('f', 't', 'y', 'p')
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#define BOX_TYPE_MOOV MAKE_TYPE_VAL('m', 'o', 'o', 'v')
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2013-06-16 02:52:01 +00:00
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#define BOX_TYPE_MVHD MAKE_TYPE_VAL('m', 'v', 'h', 'd')
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2013-06-14 15:33:58 +00:00
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#define BOX_TYPE_TRAK MAKE_TYPE_VAL('t', 'r', 'a', 'k')
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2013-06-16 02:52:01 +00:00
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#define BOX_TYPE_TKHD MAKE_TYPE_VAL('t', 'k', 'h', 'd')
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#define BOX_TYPE_MDIA MAKE_TYPE_VAL('m', 'd', 'i', 'a')
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#define BOX_TYPE_MDHD MAKE_TYPE_VAL('m', 'd', 'h', 'd')
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#define BOX_TYPE_HDLR MAKE_TYPE_VAL('h', 'd', 'l', 'r')
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2013-06-14 15:33:58 +00:00
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#define BOX_TYPE_MINF MAKE_TYPE_VAL('m', 'i', 'n', 'f')
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2013-06-16 02:52:01 +00:00
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#define BOX_TYPE_VMHD MAKE_TYPE_VAL('v', 'm', 'h', 'd')
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2013-12-31 13:09:52 +00:00
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#define BOX_TYPE_SMHD MAKE_TYPE_VAL('s', 'm', 'h', 'd')
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2013-06-16 02:52:01 +00:00
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#define BOX_TYPE_DINF MAKE_TYPE_VAL('d', 'i', 'n', 'f')
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#define BOX_TYPE_DREF MAKE_TYPE_VAL('d', 'r', 'e', 'f')
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#define BOX_TYPE_STBL MAKE_TYPE_VAL('s', 't', 'b', 'l')
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#define BOX_TYPE_STTS MAKE_TYPE_VAL('s', 't', 't', 's')
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2013-12-31 13:09:52 +00:00
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#define BOX_TYPE_CTTS MAKE_TYPE_VAL('c', 't', 't', 's')
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2013-06-16 02:52:01 +00:00
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#define BOX_TYPE_STSD MAKE_TYPE_VAL('s', 't', 's', 'd')
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#define BOX_TYPE_STSZ MAKE_TYPE_VAL('s', 't', 's', 'z')
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2014-11-29 17:50:59 +00:00
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#define BOX_TYPE_STZ2 MAKE_TYPE_VAL('s', 't', 'z', '2')
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2013-06-16 02:52:01 +00:00
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#define BOX_TYPE_STSC MAKE_TYPE_VAL('s', 't', 's', 'c')
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#define BOX_TYPE_STCO MAKE_TYPE_VAL('s', 't', 'c', 'o')
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2013-12-31 13:09:52 +00:00
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#define BOX_TYPE_STSS MAKE_TYPE_VAL('s', 't', 's', 's')
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2013-06-14 15:33:58 +00:00
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#define BOX_TYPE_MVEX MAKE_TYPE_VAL('m', 'v', 'e', 'x')
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2013-06-16 02:52:01 +00:00
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#define BOX_TYPE_MOOF MAKE_TYPE_VAL('m', 'o', 'o', 'f')
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2013-06-14 15:33:58 +00:00
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#define BOX_TYPE_MEHD MAKE_TYPE_VAL('m', 'e', 'h', 'd')
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#define BOX_TYPE_TREX MAKE_TYPE_VAL('t', 'r', 'e', 'x')
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2013-06-16 02:52:01 +00:00
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#define BOX_TYPE_MFHD MAKE_TYPE_VAL('m', 'f', 'h', 'd')
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#define BOX_TYPE_TRAF MAKE_TYPE_VAL('t', 'r', 'a', 'f')
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#define BOX_TYPE_TFHD MAKE_TYPE_VAL('t', 'f', 'h', 'd')
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#define BOX_TYPE_TRUN MAKE_TYPE_VAL('t', 'r', 'u', 'n')
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#define BOX_TYPE_MDAT MAKE_TYPE_VAL('m', 'd', 'a', 't')
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2013-06-19 22:26:12 +00:00
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#define BOX_TYPE_UDTA MAKE_TYPE_VAL('u', 'd', 't', 'a')
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2014-07-24 16:24:57 +00:00
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/* the box name is url + <space>, all names must be 4 characters long */
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#define BOX_TYPE_URL_ MAKE_TYPE_VAL('u', 'r', 'l', ' ')
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2013-06-16 02:52:01 +00:00
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2014-07-24 16:24:57 +00:00
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/* the location for this URL box is the same as in the upper-level movie box */
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#define ENTRY_FLAG_MOVIE 0x000001
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2013-06-14 15:33:58 +00:00
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static const value_string box_types[] = {
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{ BOX_TYPE_FTYP, "File Type Box" },
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{ BOX_TYPE_MOOV, "Movie Box" },
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2013-06-16 02:52:01 +00:00
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{ BOX_TYPE_MVHD, "Movie Header Box" },
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2013-06-14 15:33:58 +00:00
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{ BOX_TYPE_TRAK, "Track Box" },
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2013-06-16 02:52:01 +00:00
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{ BOX_TYPE_TKHD, "Track Header Box" },
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{ BOX_TYPE_MDIA, "Media Box" },
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{ BOX_TYPE_MDHD, "Media Header Box" },
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{ BOX_TYPE_HDLR, "Handler Reference Box" },
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2013-06-14 15:33:58 +00:00
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{ BOX_TYPE_MINF, "Media Information Box" },
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2013-06-16 02:52:01 +00:00
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{ BOX_TYPE_VMHD, "Video Media Header Box" },
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2013-12-31 13:09:52 +00:00
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{ BOX_TYPE_SMHD, "Sound Media Header Box" },
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2013-06-16 02:52:01 +00:00
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{ BOX_TYPE_DINF, "Data Information Box" },
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{ BOX_TYPE_DREF, "Data Reference Box" },
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{ BOX_TYPE_STBL, "Sample to Group Box" },
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{ BOX_TYPE_STTS, "Decoding Time To Sample Box" },
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2013-12-31 13:09:52 +00:00
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{ BOX_TYPE_CTTS, "Composition Time To Sample Box" },
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2013-06-16 02:52:01 +00:00
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{ BOX_TYPE_STSD, "Sample Description Box" },
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{ BOX_TYPE_STSZ, "Sample Size Box" },
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2014-11-29 17:50:59 +00:00
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{ BOX_TYPE_STZ2, "Compact Sample Size Box" },
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2013-06-16 02:52:01 +00:00
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{ BOX_TYPE_STSC, "Sample To Chunk Box" },
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{ BOX_TYPE_STCO, "Chunk Offset Box" },
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2013-12-31 13:09:52 +00:00
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{ BOX_TYPE_STSS, "Sync Sample Table" },
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2013-06-14 15:33:58 +00:00
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{ BOX_TYPE_MVEX, "Movie Extends Box" },
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2013-06-16 02:52:01 +00:00
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{ BOX_TYPE_MOOF, "Movie Fragment Box" },
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2013-06-14 15:33:58 +00:00
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{ BOX_TYPE_MEHD, "Movie Extends Header Box" },
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{ BOX_TYPE_TREX, "Track Extends Box" },
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2013-06-16 02:52:01 +00:00
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{ BOX_TYPE_MFHD, "Movie Fragment Header Box" },
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{ BOX_TYPE_TRAF, "Track Fragment Box" },
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{ BOX_TYPE_TFHD, "Track Fragment Header Box" },
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{ BOX_TYPE_TRUN, "Track Fragment Run Box" },
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{ BOX_TYPE_MDAT, "Media Data Box" },
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2013-06-19 22:26:12 +00:00
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{ BOX_TYPE_UDTA, "User Data Box" },
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2014-07-24 16:24:57 +00:00
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{ BOX_TYPE_URL_, "URL Box" },
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2013-06-14 15:33:58 +00:00
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{ 0, NULL }
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};
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2014-03-14 09:14:14 +00:00
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/* convert a decimal number x into a double 0.x (e.g. 123 becomes 0.123) */
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static inline double
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make_fract(guint x)
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{
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if (x==0)
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return 0.0;
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2014-07-11 03:11:25 +00:00
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return (double)(x / exp(log(10.0)*(1+floor(log((double)x)/log(10.0)))));
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2014-03-14 09:14:14 +00:00
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}
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2013-06-19 22:26:12 +00:00
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static gint
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dissect_mp4_mvhd_body(tvbuff_t *tvb, gint offset, gint len _U_,
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2014-11-29 11:58:20 +00:00
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packet_info *pinfo, proto_tree *tree)
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2013-06-14 15:33:58 +00:00
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{
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2014-11-29 11:58:20 +00:00
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gint offset_start;
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guint8 version;
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guint8 time_len;
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double rate, vol;
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guint16 fract_dec;
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guint32 next_tid;
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proto_item *next_tid_it;
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2013-06-14 15:33:58 +00:00
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offset_start = offset;
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2014-11-29 11:58:20 +00:00
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version = tvb_get_guint8(tvb, offset);
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2013-06-14 15:33:58 +00:00
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proto_tree_add_item(tree, hf_mp4_full_box_ver,
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tvb, offset, 1, ENC_BIG_ENDIAN);
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2013-10-13 18:14:59 +00:00
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offset += 1;
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2014-07-24 19:44:58 +00:00
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proto_tree_add_item(tree, hf_mp4_full_box_flags,
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tvb, offset, 3, ENC_BIG_ENDIAN);
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2013-10-13 18:14:59 +00:00
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offset += 3;
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2013-06-14 15:33:58 +00:00
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2014-11-29 11:58:20 +00:00
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time_len = (version==0) ? 4 : 8;
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proto_tree_add_item(tree, hf_mp4_mvhd_creat_time,
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tvb, offset, time_len, ENC_BIG_ENDIAN);
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offset += time_len;
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proto_tree_add_item(tree, hf_mp4_mvhd_mod_time,
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tvb, offset, time_len, ENC_BIG_ENDIAN);
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offset += time_len;
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proto_tree_add_item(tree, hf_mp4_mvhd_timescale,
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tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(tree, hf_mp4_mvhd_duration,
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tvb, offset, time_len, ENC_BIG_ENDIAN);
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offset += time_len;
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rate = tvb_get_ntohs(tvb, offset);
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fract_dec = tvb_get_ntohs(tvb, offset+2);
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rate += make_fract(fract_dec);
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proto_tree_add_double_format_value(tree, hf_mp4_mvhd_rate,
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tvb, offset, 4, rate, "%f", rate);
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offset += 4;
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vol = tvb_get_guint8(tvb, offset);
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fract_dec = tvb_get_guint8(tvb, offset+1);
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2014-12-15 18:09:57 +00:00
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vol += make_fract(fract_dec);
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2014-11-29 11:58:20 +00:00
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proto_tree_add_double_format_value(tree, hf_mp4_mvhd_vol,
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tvb, offset, 4, vol, "%f", vol);
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offset += 2;
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offset += 2; /* 16 bits reserved */
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offset += 2*4; /* 2 * uint32 reserved */
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offset += 9*4; /* XXX - unity matrix */
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offset += 6*4; /* 6 * 32 bits predefined = 0 */
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next_tid = tvb_get_ntohl(tvb, offset);
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next_tid_it = proto_tree_add_item(tree, hf_mp4_mvhd_next_tid,
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tvb, offset, 4, ENC_BIG_ENDIAN);
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if (next_tid == G_MAXUINT32)
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expert_add_info(pinfo, next_tid_it, &ei_mp4_mvhd_next_tid_unknown);
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offset += 4;
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2013-06-14 15:33:58 +00:00
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|
|
return offset-offset_start;
|
|
|
|
}
|
|
|
|
|
2013-06-19 22:26:12 +00:00
|
|
|
static gint
|
|
|
|
dissect_mp4_mfhd_body(tvbuff_t *tvb, gint offset, gint len _U_,
|
2013-06-14 15:33:58 +00:00
|
|
|
packet_info *pinfo _U_, proto_tree *tree)
|
|
|
|
{
|
2013-06-19 22:26:12 +00:00
|
|
|
gint offset_start;
|
2013-06-14 15:33:58 +00:00
|
|
|
|
|
|
|
offset_start = offset;
|
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_ver,
|
|
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
2013-10-13 18:14:59 +00:00
|
|
|
offset += 1;
|
2014-07-24 19:44:58 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_flags,
|
|
|
|
tvb, offset, 3, ENC_BIG_ENDIAN);
|
2013-10-13 18:14:59 +00:00
|
|
|
offset += 3;
|
2013-06-14 15:33:58 +00:00
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_mp4_mfhd_seq_num,
|
|
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
2013-10-13 18:14:59 +00:00
|
|
|
offset += 4;
|
2013-06-14 15:33:58 +00:00
|
|
|
|
|
|
|
return offset-offset_start;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2014-03-13 17:52:43 +00:00
|
|
|
static gint
|
2014-03-14 09:14:14 +00:00
|
|
|
dissect_mp4_tkhd_body(tvbuff_t *tvb, gint offset, gint len _U_,
|
2014-03-13 17:52:43 +00:00
|
|
|
packet_info *pinfo _U_, proto_tree *tree)
|
|
|
|
{
|
2014-03-14 09:14:14 +00:00
|
|
|
gint offset_start;
|
|
|
|
guint8 version;
|
|
|
|
guint8 time_len;
|
|
|
|
double width, height;
|
|
|
|
guint16 fract_dec;
|
|
|
|
|
|
|
|
offset_start = offset;
|
|
|
|
|
|
|
|
version = tvb_get_guint8(tvb, offset);
|
2014-03-13 17:52:43 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_ver,
|
|
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
2014-03-14 09:14:14 +00:00
|
|
|
offset += 1;
|
2014-07-24 19:44:58 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_flags,
|
|
|
|
tvb, offset, 3, ENC_BIG_ENDIAN);
|
2014-03-14 09:14:14 +00:00
|
|
|
offset += 3;
|
2014-03-13 17:52:43 +00:00
|
|
|
|
2014-03-14 09:14:14 +00:00
|
|
|
time_len = (version==0) ? 4 : 8;
|
|
|
|
proto_tree_add_item(tree, hf_mp4_tkhd_creat_time,
|
|
|
|
tvb, offset, time_len, ENC_BIG_ENDIAN);
|
|
|
|
offset += time_len;
|
|
|
|
proto_tree_add_item(tree, hf_mp4_tkhd_mod_time,
|
|
|
|
tvb, offset, time_len, ENC_BIG_ENDIAN);
|
|
|
|
offset += time_len;
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_mp4_tkhd_track_id,
|
|
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
offset += 4;
|
|
|
|
|
|
|
|
offset += 4; /* 32bit reserved */
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_mp4_tkhd_duration,
|
|
|
|
tvb, offset, time_len, ENC_BIG_ENDIAN);
|
|
|
|
offset += time_len;
|
|
|
|
|
|
|
|
offset += 2*4; /* 2*32bit reserved */
|
|
|
|
offset += 2; /* 16bit layer */
|
|
|
|
offset += 2; /* 16bit alternate_group */
|
|
|
|
offset += 2; /* 16bit volume */
|
|
|
|
offset += 2; /* 16bit reserved */
|
|
|
|
offset += 9*4; /* 9*32bit matrix */
|
|
|
|
|
|
|
|
width = tvb_get_ntohs(tvb, offset);
|
|
|
|
fract_dec = tvb_get_ntohs(tvb, offset+2);
|
|
|
|
width += make_fract(fract_dec);
|
|
|
|
proto_tree_add_double_format_value(tree, hf_mp4_tkhd_width,
|
|
|
|
tvb, offset, 4, width, "%f", width);
|
|
|
|
offset += 4;
|
|
|
|
|
|
|
|
height = tvb_get_ntohs(tvb, offset);
|
|
|
|
fract_dec = tvb_get_ntohs(tvb, offset+2);
|
|
|
|
height += make_fract(fract_dec);
|
|
|
|
proto_tree_add_double_format_value(tree, hf_mp4_tkhd_height,
|
|
|
|
tvb, offset, 4, height, "%f", height);
|
|
|
|
offset += 4;
|
|
|
|
|
|
|
|
return offset-offset_start;
|
2014-03-13 17:52:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2013-06-19 22:26:12 +00:00
|
|
|
static gint
|
|
|
|
dissect_mp4_ftyp_body(tvbuff_t *tvb, gint offset, gint len,
|
2013-06-14 15:33:58 +00:00
|
|
|
packet_info *pinfo _U_, proto_tree *tree)
|
|
|
|
{
|
2013-06-19 22:26:12 +00:00
|
|
|
gint offset_start;
|
2013-06-14 15:33:58 +00:00
|
|
|
|
|
|
|
offset_start = offset;
|
|
|
|
proto_tree_add_item(tree, hf_mp4_ftyp_brand,
|
|
|
|
tvb, offset, 4, ENC_ASCII|ENC_NA);
|
|
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_mp4_ftyp_ver,
|
|
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
offset += 4;
|
|
|
|
|
2013-10-13 18:14:59 +00:00
|
|
|
while ((offset-offset_start) < len) {
|
2013-06-14 15:33:58 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_ftyp_add_brand,
|
|
|
|
tvb, offset, 4, ENC_ASCII|ENC_NA);
|
|
|
|
offset += 4;
|
|
|
|
}
|
|
|
|
|
2013-10-13 18:14:59 +00:00
|
|
|
return offset - offset_start;
|
2013-06-14 15:33:58 +00:00
|
|
|
}
|
|
|
|
|
2014-07-24 10:12:31 +00:00
|
|
|
|
2014-11-29 18:00:58 +00:00
|
|
|
static gint
|
|
|
|
dissect_mp4_stsz_body(tvbuff_t *tvb, gint offset, gint len _U_,
|
|
|
|
packet_info *pinfo _U_, proto_tree *tree)
|
|
|
|
{
|
|
|
|
gint offset_start;
|
|
|
|
guint32 sample_size, sample_count, i;
|
|
|
|
|
|
|
|
offset_start = offset;
|
|
|
|
sample_size = tvb_get_ntohl(tvb, offset);
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_mp4_stsz_sample_size,
|
|
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
/* XXX - expert info for sample size == 0 */
|
|
|
|
offset += 4;
|
|
|
|
|
|
|
|
sample_count = tvb_get_ntohl(tvb, offset);
|
|
|
|
proto_tree_add_item(tree, hf_mp4_stsz_sample_count,
|
|
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
offset += 4;
|
|
|
|
|
|
|
|
if (sample_size != 0)
|
|
|
|
return offset - offset_start;
|
|
|
|
|
|
|
|
for (i=0; i<sample_count; i++) {
|
|
|
|
proto_tree_add_item(tree, hf_mp4_stsz_entry_size,
|
|
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
offset += 4;
|
|
|
|
}
|
|
|
|
|
|
|
|
return offset - offset_start;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2014-07-24 10:12:31 +00:00
|
|
|
static gint
|
|
|
|
dissect_mp4_hdlr_body(tvbuff_t *tvb, gint offset, gint len _U_,
|
|
|
|
packet_info *pinfo _U_, proto_tree *tree)
|
|
|
|
{
|
|
|
|
gint offset_start;
|
|
|
|
guint hdlr_name_len;
|
|
|
|
|
|
|
|
offset_start = offset;
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_ver,
|
|
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
/* XXX - put up an expert info if version!=0 */
|
|
|
|
offset += 1;
|
2014-07-24 19:44:58 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_flags,
|
|
|
|
tvb, offset, 3, ENC_BIG_ENDIAN);
|
|
|
|
offset += 3;
|
2014-07-24 10:12:31 +00:00
|
|
|
|
|
|
|
offset += 4; /* four reserved 0 bytes */
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_mp4_hdlr_type,
|
|
|
|
tvb, offset, 4, ENC_ASCII|ENC_NA);
|
|
|
|
offset += 4;
|
|
|
|
|
|
|
|
offset += 12; /* 3x32bit reserved */
|
|
|
|
|
|
|
|
/* name is a 0-terminated UTF-8 string, len includes the final 0 */
|
|
|
|
hdlr_name_len = tvb_strsize(tvb, offset);
|
|
|
|
proto_tree_add_item(tree, hf_mp4_hdlr_name,
|
|
|
|
tvb, offset, hdlr_name_len, ENC_UTF_8|ENC_NA);
|
|
|
|
offset += hdlr_name_len;
|
|
|
|
|
|
|
|
return offset-offset_start;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2014-07-24 16:17:05 +00:00
|
|
|
static gint
|
|
|
|
dissect_mp4_dref_body(tvbuff_t *tvb, gint offset, gint len _U_,
|
|
|
|
packet_info *pinfo, proto_tree *tree)
|
|
|
|
{
|
|
|
|
gint offset_start;
|
|
|
|
guint32 entry_cnt, i;
|
|
|
|
gint ret;
|
|
|
|
|
|
|
|
offset_start = offset;
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_ver,
|
|
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
/* XXX - put up an expert info if version!=0 */
|
|
|
|
offset += 1;
|
2014-07-24 19:44:58 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_flags,
|
|
|
|
tvb, offset, 3, ENC_BIG_ENDIAN);
|
|
|
|
offset += 3;
|
2014-07-24 16:17:05 +00:00
|
|
|
|
|
|
|
entry_cnt = tvb_get_ntohl(tvb, offset);
|
|
|
|
proto_tree_add_item(tree, hf_mp4_dref_entry_cnt,
|
|
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
offset += 4;
|
|
|
|
|
|
|
|
for(i=0; i<entry_cnt; i++) {
|
|
|
|
ret = dissect_mp4_box(BOX_TYPE_DREF, tvb, offset, pinfo, tree);
|
|
|
|
if (ret<=0)
|
|
|
|
break;
|
|
|
|
|
|
|
|
offset += ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
return offset-offset_start;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2014-07-24 16:24:57 +00:00
|
|
|
static gint
|
|
|
|
dissect_mp4_url_body(tvbuff_t *tvb, gint offset, gint len,
|
|
|
|
packet_info *pinfo _U_, proto_tree *tree)
|
|
|
|
{
|
2014-09-26 23:28:01 +00:00
|
|
|
#if 0
|
2014-07-24 16:24:57 +00:00
|
|
|
guint32 flags;
|
2014-09-26 23:28:01 +00:00
|
|
|
#endif
|
2014-07-24 16:24:57 +00:00
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_ver,
|
|
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
/* XXX - put up an expert info if version!=0 */
|
|
|
|
offset += 1;
|
|
|
|
|
2014-09-26 23:28:01 +00:00
|
|
|
#if 0
|
2014-07-24 16:24:57 +00:00
|
|
|
flags = tvb_get_ntoh24(tvb, offset);
|
2014-09-26 23:28:01 +00:00
|
|
|
#endif
|
2014-07-24 16:24:57 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_flags,
|
|
|
|
tvb, offset, 3, ENC_BIG_ENDIAN);
|
2014-09-26 23:28:01 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_flags_media_data_location, tvb, offset, 3, ENC_BIG_ENDIAN);
|
2014-08-07 12:39:28 +00:00
|
|
|
/*offset += 3;*/
|
2014-07-24 16:24:57 +00:00
|
|
|
|
2014-09-26 23:28:01 +00:00
|
|
|
#if 0
|
2014-07-24 16:24:57 +00:00
|
|
|
if (flags&ENTRY_FLAG_MOVIE) {
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
/* XXX - dissect location string */
|
|
|
|
}
|
2014-09-26 23:28:01 +00:00
|
|
|
#endif
|
2014-07-24 16:24:57 +00:00
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2014-07-24 19:39:48 +00:00
|
|
|
|
|
|
|
static gint
|
|
|
|
dissect_mp4_stsd_body(tvbuff_t *tvb, gint offset, gint len,
|
|
|
|
packet_info *pinfo _U_, proto_tree *tree)
|
|
|
|
{
|
|
|
|
guint32 entry_cnt, i;
|
|
|
|
gint ret;
|
|
|
|
|
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_ver,
|
|
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
/* XXX - put up an expert info if version!=0 */
|
|
|
|
offset += 1;
|
2014-07-24 19:44:58 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_full_box_flags,
|
|
|
|
tvb, offset, 3, ENC_BIG_ENDIAN);
|
|
|
|
offset += 3;
|
2014-07-24 19:39:48 +00:00
|
|
|
|
|
|
|
entry_cnt = tvb_get_ntohl(tvb, offset);
|
2014-12-15 18:12:24 +00:00
|
|
|
proto_tree_add_item(tree, hf_mp4_stsd_entry_cnt,
|
2014-07-24 19:39:48 +00:00
|
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
offset += 4;
|
|
|
|
|
|
|
|
for(i=0; i<entry_cnt; i++) {
|
|
|
|
/* a sample entry has the same format as an mp4 box
|
|
|
|
we call dissect_mp4_box() to dissect it
|
|
|
|
alternatively, we could parse it ourselves, we'd then have to
|
|
|
|
handle the extended lengths etc */
|
|
|
|
|
|
|
|
/* XXX - dissect the content of each Sample Entry,
|
|
|
|
this depends on the handler_type, we could add an optional
|
|
|
|
void *data parameter to dissect_mp4_box() and handle sample
|
|
|
|
entry boxes based on parent box and data parameter */
|
|
|
|
ret = dissect_mp4_box(BOX_TYPE_STSD, tvb, offset, pinfo, tree);
|
|
|
|
if (ret<=0)
|
|
|
|
break;
|
|
|
|
|
|
|
|
offset += ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2014-07-24 16:24:57 +00:00
|
|
|
|
2013-06-19 22:26:12 +00:00
|
|
|
/* dissect a box, return its (standard or extended) length or 0 for error */
|
2013-06-19 18:10:41 +00:00
|
|
|
static gint
|
2013-06-14 15:33:58 +00:00
|
|
|
dissect_mp4_box(guint32 parent_box_type _U_,
|
2013-06-19 22:26:12 +00:00
|
|
|
tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree)
|
2013-06-14 15:33:58 +00:00
|
|
|
{
|
2013-06-19 22:26:12 +00:00
|
|
|
gint offset_start;
|
|
|
|
guint64 box_size;
|
2013-06-14 15:33:58 +00:00
|
|
|
guint32 box_type;
|
|
|
|
guint8 *box_type_str;
|
2013-06-19 22:26:12 +00:00
|
|
|
proto_item *type_pi, *size_pi, *ext_size_pi = NULL;
|
2013-06-14 15:33:58 +00:00
|
|
|
proto_tree *box_tree;
|
2013-06-19 18:10:41 +00:00
|
|
|
gint ret;
|
2013-06-19 22:26:12 +00:00
|
|
|
gint body_size;
|
2013-06-14 15:33:58 +00:00
|
|
|
|
|
|
|
|
|
|
|
offset_start = offset;
|
|
|
|
|
|
|
|
/* the following mechanisms are not supported for now
|
|
|
|
- size==0, indicating that the box extends to the end of the file
|
|
|
|
- extended box types */
|
|
|
|
|
2013-06-19 22:26:12 +00:00
|
|
|
box_size = (guint64)tvb_get_ntohl(tvb, offset);
|
2013-10-13 18:14:59 +00:00
|
|
|
if ((box_size != BOX_SIZE_EXTENDED) && (box_size < MIN_BOX_SIZE))
|
2013-06-19 18:10:41 +00:00
|
|
|
return -1;
|
2013-06-14 15:33:58 +00:00
|
|
|
|
|
|
|
box_type = tvb_get_ntohl(tvb, offset+4);
|
2014-01-21 22:16:05 +00:00
|
|
|
box_type_str = tvb_get_string_enc(wmem_packet_scope(), tvb,
|
|
|
|
offset+4, 4, ENC_ASCII|ENC_NA);
|
2013-06-14 15:33:58 +00:00
|
|
|
|
2014-06-20 21:34:10 +00:00
|
|
|
box_tree = proto_tree_add_subtree_format(tree, tvb, offset, -1, ett_mp4_box, &type_pi, "%s (%s)",
|
2013-06-14 15:33:58 +00:00
|
|
|
val_to_str_const(box_type, box_types, "unknown"), box_type_str);
|
|
|
|
|
2013-06-19 22:26:12 +00:00
|
|
|
size_pi = proto_tree_add_item(box_tree, hf_mp4_box_size,
|
2013-06-14 15:33:58 +00:00
|
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
2013-10-13 18:14:59 +00:00
|
|
|
if (box_size == BOX_SIZE_EXTENDED)
|
2013-06-19 22:26:12 +00:00
|
|
|
proto_item_append_text(size_pi, " (actual size is in largesize)");
|
|
|
|
|
2013-06-14 15:33:58 +00:00
|
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(box_tree, hf_mp4_box_type_str,
|
|
|
|
tvb, offset, 4, ENC_ASCII|ENC_NA);
|
|
|
|
offset += 4;
|
|
|
|
|
2013-10-13 18:14:59 +00:00
|
|
|
if (box_size == BOX_SIZE_EXTENDED) {
|
2013-06-19 22:26:12 +00:00
|
|
|
box_size = tvb_get_ntoh64(tvb, offset);
|
|
|
|
ext_size_pi = proto_tree_add_item(box_tree, hf_mp4_box_largesize,
|
|
|
|
tvb, offset, 8, ENC_BIG_ENDIAN);
|
|
|
|
offset += 8;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (box_size > G_MAXINT) {
|
|
|
|
/* this should be ok for ext_size_pi==NULL */
|
|
|
|
expert_add_info(pinfo, ext_size_pi, &ei_mp4_box_too_large);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
proto_item_set_len(type_pi, (gint)box_size);
|
|
|
|
body_size = (gint)box_size - (offset-offset_start);
|
|
|
|
|
2014-03-14 09:14:14 +00:00
|
|
|
/* we do not dissect full box version and flags here
|
|
|
|
these two components are required by the function dissecting the body
|
|
|
|
some fields of the body depend on the version and flags */
|
|
|
|
|
2013-06-14 15:33:58 +00:00
|
|
|
/* XXX - check parent box if supplied */
|
|
|
|
switch (box_type) {
|
|
|
|
case BOX_TYPE_FTYP:
|
2013-06-19 22:26:12 +00:00
|
|
|
dissect_mp4_ftyp_body(tvb, offset, body_size, pinfo, box_tree);
|
2013-06-14 15:33:58 +00:00
|
|
|
break;
|
|
|
|
case BOX_TYPE_MVHD:
|
2013-06-19 22:26:12 +00:00
|
|
|
dissect_mp4_mvhd_body(tvb, offset, body_size, pinfo, box_tree);
|
2013-06-14 15:33:58 +00:00
|
|
|
break;
|
|
|
|
case BOX_TYPE_MFHD:
|
2013-06-19 22:26:12 +00:00
|
|
|
dissect_mp4_mfhd_body(tvb, offset, body_size, pinfo, box_tree);
|
2013-06-14 15:33:58 +00:00
|
|
|
break;
|
2014-03-13 17:52:43 +00:00
|
|
|
case BOX_TYPE_TKHD:
|
|
|
|
dissect_mp4_tkhd_body(tvb, offset, body_size, pinfo, box_tree);
|
|
|
|
break;
|
2014-11-29 18:00:58 +00:00
|
|
|
case BOX_TYPE_STSZ:
|
|
|
|
dissect_mp4_stsz_body(tvb, offset, body_size, pinfo, box_tree);
|
|
|
|
break;
|
2014-07-24 10:12:31 +00:00
|
|
|
case BOX_TYPE_HDLR:
|
|
|
|
dissect_mp4_hdlr_body(tvb, offset, body_size, pinfo, box_tree);
|
|
|
|
break;
|
2014-07-24 16:17:05 +00:00
|
|
|
case BOX_TYPE_DREF:
|
|
|
|
dissect_mp4_dref_body(tvb, offset, body_size, pinfo, box_tree);
|
|
|
|
break;
|
2014-07-24 16:24:57 +00:00
|
|
|
case BOX_TYPE_URL_:
|
|
|
|
dissect_mp4_url_body(tvb, offset, body_size, pinfo, box_tree);
|
|
|
|
break;
|
2014-07-24 19:39:48 +00:00
|
|
|
case BOX_TYPE_STSD:
|
|
|
|
dissect_mp4_stsd_body(tvb, offset, body_size, pinfo, box_tree);
|
|
|
|
break;
|
2013-06-14 15:33:58 +00:00
|
|
|
case BOX_TYPE_MOOV:
|
|
|
|
case BOX_TYPE_MOOF:
|
|
|
|
case BOX_TYPE_STBL:
|
|
|
|
case BOX_TYPE_MDIA:
|
|
|
|
case BOX_TYPE_TRAK:
|
|
|
|
case BOX_TYPE_TRAF:
|
|
|
|
case BOX_TYPE_MINF:
|
|
|
|
case BOX_TYPE_MVEX:
|
2013-06-16 02:52:01 +00:00
|
|
|
case BOX_TYPE_DINF:
|
2013-06-19 22:26:12 +00:00
|
|
|
case BOX_TYPE_UDTA:
|
2013-10-13 18:14:59 +00:00
|
|
|
while (offset-offset_start < (gint)box_size) {
|
2013-06-14 15:33:58 +00:00
|
|
|
ret = dissect_mp4_box(box_type, tvb, offset, pinfo, box_tree);
|
2013-10-13 18:14:59 +00:00
|
|
|
if (ret <= 0)
|
2013-06-14 15:33:58 +00:00
|
|
|
break;
|
|
|
|
offset += ret;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2013-06-19 22:26:12 +00:00
|
|
|
return (gint)box_size;
|
2013-06-14 15:33:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_mp4(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
|
|
|
|
{
|
2013-06-19 22:26:12 +00:00
|
|
|
gint offset = 0;
|
2013-06-14 15:33:58 +00:00
|
|
|
guint32 box_type;
|
|
|
|
proto_item *pi;
|
|
|
|
proto_tree *mp4_tree;
|
2013-06-19 18:10:41 +00:00
|
|
|
gint ret;
|
2013-06-14 15:33:58 +00:00
|
|
|
|
|
|
|
/* to make sure that we have an mp4 file, we check that it starts with
|
|
|
|
a box of a known type
|
2013-06-19 22:26:12 +00:00
|
|
|
please note that we do not allow the first box to be an extended box
|
|
|
|
this detection should be safe as long as the dissector is only called for
|
2013-06-14 15:33:58 +00:00
|
|
|
the video/mp4 mime type
|
|
|
|
when we read mp4 files directly, we might need stricter checks here */
|
2013-10-13 18:14:59 +00:00
|
|
|
if (tvb_reported_length(tvb) < MIN_BOX_SIZE)
|
2013-06-14 15:33:58 +00:00
|
|
|
return 0;
|
|
|
|
box_type = tvb_get_ntohl(tvb, 4);
|
|
|
|
if (try_val_to_str(box_type, box_types) == NULL)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MP4");
|
|
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
|
|
|
|
pi = proto_tree_add_protocol_format(tree, proto_mp4,
|
2013-06-19 22:26:12 +00:00
|
|
|
tvb, 0, (gint)tvb_reported_length(tvb), "MP4");
|
2013-06-14 15:33:58 +00:00
|
|
|
mp4_tree = proto_item_add_subtree(pi, ett_mp4);
|
|
|
|
|
|
|
|
while (tvb_reported_length_remaining(tvb, offset) > 0) {
|
|
|
|
ret = dissect_mp4_box(BOX_TYPE_NONE, tvb, offset, pinfo, mp4_tree);
|
2013-10-13 18:14:59 +00:00
|
|
|
if (ret <= 0)
|
2013-06-14 15:33:58 +00:00
|
|
|
break;
|
|
|
|
offset += ret;
|
|
|
|
}
|
|
|
|
|
2013-06-19 18:10:41 +00:00
|
|
|
return offset;
|
2013-06-14 15:33:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_register_mp4(void)
|
|
|
|
{
|
|
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_mp4_box_size,
|
|
|
|
{ "Box size", "mp4.box.size", FT_UINT32, BASE_DEC,
|
|
|
|
NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_box_type_str,
|
|
|
|
{ "Box type", "mp4.box.type_str", FT_STRING, BASE_NONE,
|
|
|
|
NULL, 0, NULL, HFILL } },
|
2013-06-19 22:26:12 +00:00
|
|
|
{ &hf_mp4_box_largesize,
|
|
|
|
{ "Box size (largesize)", "mp4.box.largesize", FT_UINT64, BASE_DEC,
|
|
|
|
NULL, 0, NULL, HFILL } },
|
2013-06-14 15:33:58 +00:00
|
|
|
{ &hf_mp4_full_box_ver,
|
|
|
|
{ "Box version", "mp4.full_box.version", FT_UINT8, BASE_DEC,
|
|
|
|
NULL, 0, NULL, HFILL } },
|
2014-07-24 16:24:57 +00:00
|
|
|
{ &hf_mp4_full_box_flags,
|
|
|
|
{ "Flags", "mp4.full_box.flags", FT_UINT24, BASE_HEX,
|
|
|
|
NULL, 0, NULL, HFILL } },
|
2014-09-26 23:28:01 +00:00
|
|
|
{ &hf_mp4_full_box_flags_media_data_location,
|
|
|
|
{ "Media data location is defined in the movie box", "mp4.full_box.flags.media_data_location", FT_BOOLEAN, 24,
|
|
|
|
NULL, ENTRY_FLAG_MOVIE, NULL, HFILL } },
|
2013-06-14 15:33:58 +00:00
|
|
|
{ &hf_mp4_ftyp_brand,
|
|
|
|
{ "Brand", "mp4.ftyp.brand", FT_STRING, BASE_NONE,
|
|
|
|
NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_ftyp_ver,
|
|
|
|
{ "Version", "mp4.ftyp.version", FT_UINT32, BASE_DEC,
|
|
|
|
NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_ftyp_add_brand,
|
|
|
|
{ "Additional brand", "mp4.ftyp.additional_brand", FT_STRING,
|
|
|
|
BASE_NONE, NULL, 0, NULL, HFILL } },
|
2014-11-29 18:00:58 +00:00
|
|
|
{ &hf_mp4_stsz_sample_size,
|
|
|
|
{ "Sample size", "mp4.stsz.sample_size", FT_UINT32,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_stsz_sample_count,
|
|
|
|
{ "Sample count", "mp4.stsz.sample_count", FT_UINT32,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_stsz_entry_size,
|
|
|
|
{ "Entry size", "mp4.stsz.entry_size", FT_UINT32,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
2014-11-29 11:58:20 +00:00
|
|
|
{ &hf_mp4_mvhd_creat_time,
|
|
|
|
{ "Creation time", "mp4.mvhd.creation_time", FT_UINT64,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_mvhd_mod_time,
|
|
|
|
{ "Modification time", "mp4.mvhd.modification_time", FT_UINT64,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_mvhd_timescale,
|
|
|
|
{ "Timescale", "mp4.mvhd.timescale", FT_UINT32,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_mvhd_duration,
|
|
|
|
{ "Duration", "mp4.mvhd.duration", FT_UINT64,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_mvhd_rate,
|
|
|
|
{ "Rate", "mp4.mvhd.rate", FT_DOUBLE,
|
|
|
|
BASE_NONE, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_mvhd_vol,
|
|
|
|
{ "Volume", "mp4.mvhd.volume", FT_DOUBLE,
|
|
|
|
BASE_NONE, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_mvhd_next_tid,
|
|
|
|
{ "Next Track ID", "mp4.mvhd.next_track_id", FT_UINT32,
|
|
|
|
BASE_HEX, NULL, 0, NULL, HFILL } },
|
2013-06-14 15:33:58 +00:00
|
|
|
{ &hf_mp4_mfhd_seq_num,
|
|
|
|
{ "Sequence number", "mp4.mfhd.sequence_number", FT_UINT32,
|
2014-03-14 09:14:14 +00:00
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_tkhd_creat_time,
|
|
|
|
{ "Creation time", "mp4.tkhd.creation_time", FT_UINT64,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_tkhd_mod_time,
|
|
|
|
{ "Modification time", "mp4.tkhd.modification_time", FT_UINT64,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_tkhd_track_id,
|
|
|
|
{ "Track ID", "mp4.tkhd.track_id", FT_UINT32,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_tkhd_duration,
|
|
|
|
{ "Duration", "mp4.tkhd.duration", FT_UINT64,
|
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_tkhd_width,
|
|
|
|
{ "Width", "mp4.tkhd.width", FT_DOUBLE,
|
|
|
|
BASE_NONE, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_tkhd_height,
|
|
|
|
{ "Height", "mp4.tkhd.height", FT_DOUBLE,
|
2014-07-24 10:12:31 +00:00
|
|
|
BASE_NONE, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_hdlr_type,
|
|
|
|
{ "Handler type", "mp4.hdlr.type", FT_STRING,
|
|
|
|
BASE_NONE, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_hdlr_name,
|
|
|
|
{ "Handler name", "mp4.hdlr.name", FT_STRINGZ,
|
2014-07-24 16:17:05 +00:00
|
|
|
BASE_NONE, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_dref_entry_cnt,
|
|
|
|
{ "Number of entries", "mp4.dref.entry_count", FT_UINT32,
|
2014-07-24 19:39:48 +00:00
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } },
|
|
|
|
{ &hf_mp4_stsd_entry_cnt,
|
|
|
|
{ "Number of entries", "mp4.stsd.entry_count", FT_UINT32,
|
2014-07-24 16:17:05 +00:00
|
|
|
BASE_DEC, NULL, 0, NULL, HFILL } }
|
2013-06-14 15:33:58 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
static gint *ett[] = {
|
|
|
|
&ett_mp4,
|
|
|
|
&ett_mp4_box
|
|
|
|
};
|
|
|
|
|
2013-06-19 22:26:12 +00:00
|
|
|
static ei_register_info ei[] = {
|
|
|
|
{ &ei_mp4_box_too_large,
|
|
|
|
{ "mp4.box_too_large", PI_PROTOCOL, PI_WARN,
|
2014-11-29 11:58:20 +00:00
|
|
|
"box size too large, dissection of this box is not supported", EXPFILL }},
|
|
|
|
{ &ei_mp4_mvhd_next_tid_unknown,
|
|
|
|
{ "mp4.mvhd.next_tid_unknown", PI_PROTOCOL, PI_CHAT,
|
|
|
|
"Next track ID is unknown. Search for an unused track ID if you want to insert a new track.", EXPFILL }}
|
2013-06-19 22:26:12 +00:00
|
|
|
};
|
|
|
|
|
2013-10-13 18:14:59 +00:00
|
|
|
expert_module_t *expert_mp4;
|
|
|
|
|
2013-06-14 15:33:58 +00:00
|
|
|
proto_mp4 = proto_register_protocol("MP4 / ISOBMFF file format", "mp4", "mp4");
|
|
|
|
|
|
|
|
proto_register_field_array(proto_mp4, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
2013-06-19 22:26:12 +00:00
|
|
|
expert_mp4 = expert_register_protocol(proto_mp4);
|
|
|
|
expert_register_field_array(expert_mp4, ei, array_length(ei));
|
2013-06-14 15:33:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_reg_handoff_mp4(void)
|
|
|
|
{
|
2015-12-09 03:49:44 +00:00
|
|
|
dissector_handle_t mp4_handle = create_dissector_handle(dissect_mp4, proto_mp4);
|
2013-06-14 15:33:58 +00:00
|
|
|
dissector_add_string("media_type", "video/mp4", mp4_handle);
|
2015-07-05 18:53:23 +00:00
|
|
|
dissector_add_string("media_type", "audio/mp4", mp4_handle);
|
2013-06-14 15:33:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
|
|
*
|
|
|
|
* Local variables:
|
|
|
|
* c-basic-offset: 4
|
|
|
|
* tab-width: 8
|
|
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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