path: root/epan/dissectors/packet-gvsp.c

/* packet-gvsp.c
 * Routines for AIA GigE Vision (TM) Streaming Protocol dissection
 * Copyright 2012, AIA <www.visiononline.org> All rights reserved
 *
 * GigE Vision (TM): GigE Vision a standard developed under the sponsorship of the AIA for
 * the benefit of the machine vision industry. GVSP stands for GigE Vision (TM) Streaming
 * Protocol.
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "config.h"
#include <epan/packet.h>
#include <epan/conversation.h>
#include <epan/prefs.h>

void proto_register_gvsp(void);
void proto_reg_handoff_gvsp(void);

#define GVSP_MIN_PACKET_SIZE         8
#define GVSP_V2_MIN_PACKET_SIZE     20

/*
  Payload types
 */

#define GVSP_PAYLOAD_IMAGE               ( 0x0001 )
#define GVSP_PAYLOAD_RAWDATA             ( 0x0002 )
#define GVSP_PAYLOAD_FILE                ( 0x0003 )
#define GVSP_PAYLOAD_CHUNKDATA           ( 0x0004 )
#define GVSP_PAYLOAD_EXTENDEDCHUNKDATA   ( 0x0005 ) /* Deprecated */
#define GVSP_PAYLOAD_JPEG                ( 0x0006 )
#define GVSP_PAYLOAD_JPEG2000            ( 0x0007 )
#define GVSP_PAYLOAD_H264                ( 0x0008 )
#define GVSP_PAYLOAD_MULTIZONEIMAGE      ( 0x0009 )
#define GVSP_PAYLOAD_DEVICEPSECIFICSTART ( 0x8000 )


/*
   GVSP packet types
 */

#define GVSP_PACKET_LEADER            ( 1 )
#define GVSP_PACKET_TRAILER           ( 2 )
#define GVSP_PACKET_PAYLOAD           ( 3 )
#define GVSP_PACKET_ALLIN             ( 4 )
#define GVSP_PACKET_PAYLOAD_H264      ( 5 )
#define GVSP_PACKET_PAYLOAD_MULTIZONE ( 6 )


/*
   GVSP statuses
 */

#define GEV_STATUS_SUCCESS                             (0x0000)
#define GEV_STATUS_PACKET_RESEND                       (0x0100)
#define GEV_STATUS_NOT_IMPLEMENTED                     (0x8001)
#define GEV_STATUS_INVALID_PARAMETER                   (0x8002)
#define GEV_STATUS_INVALID_ADDRESS                     (0x8003)
#define GEV_STATUS_WRITE_PROTECT                       (0x8004)
#define GEV_STATUS_BAD_ALIGNMENT                       (0x8005)
#define GEV_STATUS_ACCESS_DENIED                       (0x8006)
#define GEV_STATUS_BUSY                                (0x8007)
#define GEV_STATUS_LOCAL_PROBLEM                       (0x8008) /* deprecated */
#define GEV_STATUS_MSG_MISMATCH                        (0x8009) /* deprecated */
#define GEV_STATUS_INVALID_PROTOCOL                    (0x800A) /* deprecated */
#define GEV_STATUS_NO_MSG                              (0x800B) /* deprecated */
#define GEV_STATUS_PACKET_UNAVAILABLE                  (0x800C)
#define GEV_STATUS_DATA_OVERRUN                        (0x800D)
#define GEV_STATUS_INVALID_HEADER                      (0x800E)
#define GEV_STATUS_WRONG_CONFIG                        (0x800F) /* deprecated */
#define GEV_STATUS_PACKET_NOT_YET_AVAILABLE            (0x8010)
#define GEV_STATUS_PACKET_AND_PREV_REMOVED_FROM_MEMORY (0x8011)
#define GEV_STATUS_PACKET_REMOVED_FROM_MEMORY          (0x8012)
#define GEV_STATUS_ERROR                               (0x8FFF)


/*
   Pixel type color
 */

#define GVSP_PIX_MONO             (0x01000000)
#define GVSP_PIX_RGB              (0x02000000)
#define GVSP_PIX_COLOR            (0x02000000)
#define GVSP_PIX_CUSTOM           (0x80000000)
#define GVSP_PIX_COLOR_MASK       (0xFF000000)


/*
   Pixel type size
 */

#define GVSP_PIX_OCCUPY1BIT       (0x00010000)
#define GVSP_PIX_OCCUPY2BIT       (0x00020000)
#define GVSP_PIX_OCCUPY4BIT       (0x00040000)
#define GVSP_PIX_OCCUPY8BIT       (0x00080000)
#define GVSP_PIX_OCCUPY12BIT      (0x000C0000)
#define GVSP_PIX_OCCUPY16BIT      (0x00100000)
#define GVSP_PIX_OCCUPY24BIT      (0x00180000)
#define GVSP_PIX_OCCUPY32BIT      (0x00200000)
#define GVSP_PIX_OCCUPY36BIT      (0x00240000)
#define GVSP_PIX_OCCUPY48BIT      (0x00300000)


/*
   Pixel type masks, shifts
 */
#define GVSP_PIX_EFFECTIVE_PIXEL_SIZE_MASK (0x00FF0000)
#define GVSP_PIX_EFFECTIVE_PIXEL_SIZE_SHIFT (16)

#define GVSP_PIX_ID_MASK (0x0000FFFF)


/*
   Pixel types
 */

#define GVSP_PIX_MONO1P                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY1BIT  | 0x0037)

#define GVSP_PIX_MONO2P                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY2BIT  | 0x0038)

#define GVSP_PIX_MONO4P                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY4BIT  | 0x0039)

#define GVSP_PIX_MONO8                   (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY8BIT  | 0x0001)
#define GVSP_PIX_MONO8S                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY8BIT  | 0x0002)
#define GVSP_PIX_BAYGR8                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY8BIT  | 0x0008)
#define GVSP_PIX_BAYRG8                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY8BIT  | 0x0009)
#define GVSP_PIX_BAYGB8                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY8BIT  | 0x000A)
#define GVSP_PIX_BAYBG8                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY8BIT  | 0x000B)

#define GVSP_PIX_MONO10_PACKED           (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x0004)
#define GVSP_PIX_MONO12_PACKED           (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x0006)
#define GVSP_PIX_BAYGR10_PACKED          (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x0026)
#define GVSP_PIX_BAYRG10_PACKED          (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x0027)
#define GVSP_PIX_BAYGB10_PACKED          (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x0028)
#define GVSP_PIX_BAYBG10_PACKED          (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x0029)
#define GVSP_PIX_BAYGR12_PACKED          (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x002A)
#define GVSP_PIX_BAYRG12_PACKED          (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x002B)
#define GVSP_PIX_BAYGB12_PACKED          (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x002C)
#define GVSP_PIX_BAYBG12_PACKED          (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY12BIT | 0x002D)

#define GVSP_PIX_MONO10                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0003)
#define GVSP_PIX_MONO12                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0005)
#define GVSP_PIX_MONO16                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0007)
#define GVSP_PIX_BAYGR10                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x000C)
#define GVSP_PIX_BAYRG10                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x000D)
#define GVSP_PIX_BAYGB10                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x000E)
#define GVSP_PIX_BAYBG10                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x000F)
#define GVSP_PIX_BAYGR12                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0010)
#define GVSP_PIX_BAYRG12                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0011)
#define GVSP_PIX_BAYGB12                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0012)
#define GVSP_PIX_BAYBG12                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0013)
#define GVSP_PIX_MONO14                  (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0025)
#define GVSP_PIX_BAYGR16                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x002E)
#define GVSP_PIX_BAYRG16                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x002F)
#define GVSP_PIX_BAYGB16                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0030)
#define GVSP_PIX_BAYBG16                 (GVSP_PIX_MONO  | GVSP_PIX_OCCUPY16BIT | 0x0031)

#define GVSP_PIX_YUV411_8_UYYVYY         (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY12BIT | 0x001E)
#define GVSP_PIX_YCBCR422_8_CBYYCRYY     (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY12BIT | 0x003C)
#define GVSP_PIX_YCBCR601_411_8_CBYYCRYY (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY12BIT | 0x003F)
#define GVSP_PIX_YCBCR709_411_8_CBYYCRYY (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY12BIT | 0x0042)

#define GVSP_PIX_YUV422_8_UYVY           (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x001F)
#define GVSP_PIX_YUV422_8                (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x0032)
#define GVSP_PIX_RGB565P                 (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x0035)
#define GVSP_PIX_BGR565P                 (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x0036)
#define GVSP_PIX_YCBCR422_8              (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x003B)
#define GVSP_PIX_YCBCR601_422_8          (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x003E)
#define GVSP_PIX_YCBCR709_422_8          (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x0041)
#define GVSP_PIX_YCBCR422_8_CBYCRY       (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x0043)
#define GVSP_PIX_YCBCR601_422_8_CBYCRY   (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x0044)
#define GVSP_PIX_YCBCR709_422_8_CBYCRY   (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY16BIT | 0x0045)

#define GVSP_PIX_RGB8                    (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY24BIT | 0x0014)
#define GVSP_PIX_BGR8                    (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY24BIT | 0x0015)
#define GVSP_PIX_YUV8_UYV                (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY24BIT | 0x0020)
#define GVSP_PIX_RGB8_PLANAR             (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY24BIT | 0x0021)
#define GVSP_PIX_YCBCR8_CBYCR            (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY24BIT | 0x003A)
#define GVSP_PIX_YCBCR601_8_CBYCR        (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY24BIT | 0x003D)
#define GVSP_PIX_YCBCR709_411_8_CBYCR    (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY24BIT | 0x0040)

#define GVSP_PIX_RGBA8                   (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY32BIT | 0x0016)
#define GVSP_PIX_BGRA8                   (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY32BIT | 0x0017)
#define GVSP_PIX_RGB10V1_PACKED          (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY32BIT | 0x001C)
#define GVSP_PIX_RGB10P32                (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY32BIT | 0x001D)

#define GVSP_PIX_RGB12V1_PACKED          (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY36BIT | 0x0034)

#define GVSP_PIX_RGB10                   (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY48BIT | 0x0018)
#define GVSP_PIX_BGR10                   (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY48BIT | 0x0019)
#define GVSP_PIX_RGB12                   (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY48BIT | 0x001A)
#define GVSP_PIX_BGR12                   (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY48BIT | 0x001B)
#define GVSP_PIX_RGB10_PLANAR            (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY48BIT | 0x0022)
#define GVSP_PIX_RGB12_PLANAR            (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY48BIT | 0x0023)
#define GVSP_PIX_RGB16_PLANAR            (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY48BIT | 0x0024)
#define GVSP_PIX_RGB16                   (GVSP_PIX_COLOR | GVSP_PIX_OCCUPY48BIT | 0x0033)



/* Structure to hold GVSP packet information */
typedef struct _gvsp_packet_info
{
    gint    chunk;
    guint8  format;
    guint16 payloadtype;
    guint64 blockid;
    guint32 packetid;
    gint    enhanced;
    gint    flag_resendrangeerror;
    gint    flag_previousblockdropped;
    gint    flag_packetresend;
} gvsp_packet_info;


/*Define the gvsp proto */
static int proto_gvsp = -1;
/*static int global_gvsp_port = 20202;*/
static dissector_handle_t gvsp_handle;


/* Define the tree for gvsp */
static int ett_gvsp = -1;
static int ett_gvsp_flags = -1;
static int ett_gvsp_header = -1;
static int ett_gvsp_payload = -1;
static int ett_gvsp_trailer = -1;
static int ett_gvsp_pixelformat = -1;
static int ett_gvsp_fieldinfo = -1;
static int ett_gvsp_cs = -1;
static int ett_gvsp_sc_zone_direction = -1;
static int ett_gvsp_zoneinfo = -1;


static const value_string statusnames[] = {
    { GEV_STATUS_SUCCESS,                             "GEV_STATUS_SUCCESS" },
    { GEV_STATUS_PACKET_RESEND,                       "GEV_STATUS_PACKET_RESEND" },
    { GEV_STATUS_NOT_IMPLEMENTED,                     "GEV_STATUS_NOT_IMPLEMENTED" },
    { GEV_STATUS_INVALID_PARAMETER,                   "GEV_STATUS_INVALID_PARAMETER" },
    { GEV_STATUS_INVALID_ADDRESS,                     "GEV_STATUS_INVALID_ADDRESS" },
    { GEV_STATUS_WRITE_PROTECT,                       "GEV_STATUS_WRITE_PROTECT" },
    { GEV_STATUS_BAD_ALIGNMENT,                       "GEV_STATUS_BAD_ALIGNMENT" },
    { GEV_STATUS_ACCESS_DENIED,                       "GEV_STATUS_ACCESS_DENIED" },
    { GEV_STATUS_BUSY,                                "GEV_STATUS_BUSY" },
    { GEV_STATUS_LOCAL_PROBLEM,                       "GEV_STATUS_LOCAL_PROBLEM (deprecated)" },
    { GEV_STATUS_MSG_MISMATCH,                        "GEV_STATUS_MSG_MISMATCH (deprecated)" },
    { GEV_STATUS_INVALID_PROTOCOL,                    "GEV_STATUS_INVALID_PROTOCOL (deprecated)" },
    { GEV_STATUS_NO_MSG,                              "GEV_STATUS_NO_MSG (deprecated)" },
    { GEV_STATUS_PACKET_UNAVAILABLE,                  "GEV_STATUS_PACKET_UNAVAILABLE" },
    { GEV_STATUS_DATA_OVERRUN,                        "GEV_STATUS_DATA_OVERRUN" },
    { GEV_STATUS_INVALID_HEADER,                      "GEV_STATUS_INVALID_HEADER" },
    { GEV_STATUS_WRONG_CONFIG,                        "GEV_STATUS_WRONG_CONFIG (deprecated)" },
    { GEV_STATUS_PACKET_NOT_YET_AVAILABLE,            "GEV_STATUS_PACKET_NOT_YET_AVAILABLE" },
    { GEV_STATUS_PACKET_AND_PREV_REMOVED_FROM_MEMORY, "GEV_STATUS_PACKET_AND_PREV_REMOVED_FROM_MEMORY" },
    { GEV_STATUS_PACKET_REMOVED_FROM_MEMORY,          "GEV_STATUS_PACKET_REMOVED_FROM_MEMORY" },
    { GEV_STATUS_ERROR,                               "GEV_STATUS_ERROR" },
    { 0, NULL },
};

static value_string_ext statusnames_ext = VALUE_STRING_EXT_INIT(statusnames);

static const value_string formatnames[] = {
    { GVSP_PACKET_LEADER,                   "LEADER" },
    { GVSP_PACKET_TRAILER,                  "TRAILER" },
    { GVSP_PACKET_PAYLOAD,                  "PAYLOAD" },
    { GVSP_PACKET_ALLIN,                    "ALLIN" },
    { GVSP_PACKET_PAYLOAD_H264,             "H264" },
    { GVSP_PACKET_PAYLOAD_MULTIZONE,        "MULTIZONE" },
    { 0x80 | GVSP_PACKET_LEADER,            "LEADER (ext IDs)" },
    { 0x80 | GVSP_PACKET_TRAILER,           "TRAILER (ext IDs)" },
    { 0x80 | GVSP_PACKET_PAYLOAD,           "PAYLOAD (ext IDs)" },
    { 0x80 | GVSP_PACKET_ALLIN,             "ALLIN (ext IDs)" },
    { 0x80 | GVSP_PACKET_PAYLOAD_H264,      "H264 (ext IDs)" },
    { 0x80 | GVSP_PACKET_PAYLOAD_MULTIZONE, "MULTIZONE (ext IDs)" },
    { 0, NULL },
};

static const value_string payloadtypenames[] = {
    { GVSP_PAYLOAD_IMAGE,                      "IMAGE" },
    { GVSP_PAYLOAD_RAWDATA,                    "RAWDATA" },
    { GVSP_PAYLOAD_FILE,                       "FILE" },
    { GVSP_PAYLOAD_CHUNKDATA,                  "CHUNKDATA" },
    { GVSP_PAYLOAD_EXTENDEDCHUNKDATA,          "EXTENDEDCHUNKDATA (obsolete with v2.0)" },
    { GVSP_PAYLOAD_JPEG,                       "JPEG" },
    { GVSP_PAYLOAD_JPEG2000,                   "JPEG2000" },
    { GVSP_PAYLOAD_H264,                       "H264" },
    { GVSP_PAYLOAD_MULTIZONEIMAGE,             "MUTLIZONEIAMGE" },
    { 0x4000 | GVSP_PAYLOAD_IMAGE,             "IMAGE (v2.0 chunks)" },
    { 0x4000 | GVSP_PAYLOAD_RAWDATA,           "RAWDATA (v2.0 Chunks)" },
    { 0x4000 | GVSP_PAYLOAD_FILE,              "FILE (v2.0 Chunks)" },
    { 0x4000 | GVSP_PAYLOAD_CHUNKDATA,         "CHUNKDATA (v2.0 Chunks)" },
    { 0x4000 | GVSP_PAYLOAD_EXTENDEDCHUNKDATA, "EXTENDEDCHUNKDATA (v2.0 chunks?)" },
    { 0x4000 | GVSP_PAYLOAD_JPEG,              "JPEG (v2.0 Chunks)" },
    { 0x4000 | GVSP_PAYLOAD_JPEG2000,          "JPEG2000 (v2.0 Chunks)" },
    { 0x4000 | GVSP_PAYLOAD_H264,              "H264 (v2.0 Chunks)" },
    { 0x4000 | GVSP_PAYLOAD_MULTIZONEIMAGE,    "MULTIZONEIMAGE (v2.0 Chunks)" },
    { 0, NULL },
};

static value_string_ext payloadtypenames_ext = VALUE_STRING_EXT_INIT(payloadtypenames);

static const value_string pixeltypenames[] = {
    { GVSP_PIX_MONO1P,                  "GVSP_PIX_MONO1P" },

    { GVSP_PIX_MONO2P,                  "GVSP_PIX_MONO2P" },

    { GVSP_PIX_MONO4P,                  "GVSP_PIX_MONO4P" },

    { GVSP_PIX_MONO8,                   "GVSP_PIX_MONO8" },
    { GVSP_PIX_MONO8S,                  "GVSP_PIX_MONO8S" },
    { GVSP_PIX_BAYGR8,                  "GVSP_PIX_BAYGR8" },
    { GVSP_PIX_BAYRG8,                  "GVSP_PIX_BAYRG8" },
    { GVSP_PIX_BAYGB8,                  "GVSP_PIX_BAYGB8" },
    { GVSP_PIX_BAYBG8,                  "GVSP_PIX_BAYBG8" },

    { GVSP_PIX_MONO10_PACKED,           "GVSP_PIX_MONO10_PACKED" },
    { GVSP_PIX_MONO12_PACKED,           "GVSP_PIX_MONO12_PACKED" },
    { GVSP_PIX_BAYGR10_PACKED,          "GVSP_PIX_BAYGR10_PACKED" },
    { GVSP_PIX_BAYRG10_PACKED,          "GVSP_PIX_BAYRG10_PACKED" },
    { GVSP_PIX_BAYGB10_PACKED,          "GVSP_PIX_BAYGB10_PACKED" },
    { GVSP_PIX_BAYBG10_PACKED,          "GVSP_PIX_BAYBG10_PACKED" },
    { GVSP_PIX_BAYGR12_PACKED,          "GVSP_PIX_BAYGR12_PACKED" },
    { GVSP_PIX_BAYRG12_PACKED,          "GVSP_PIX_BAYRG12_PACKED" },
    { GVSP_PIX_BAYGB12_PACKED,          "GVSP_PIX_BAYGB12_PACKED" },
    { GVSP_PIX_BAYBG12_PACKED,          "GVSP_PIX_BAYBG12_PACKED" },

    { GVSP_PIX_MONO10,                  "GVSP_PIX_MONO10" },
    { GVSP_PIX_MONO12,                  "GVSP_PIX_MONO12" },
    { GVSP_PIX_MONO16,                  "GVSP_PIX_MONO16" },
    { GVSP_PIX_BAYGR10,                 "GVSP_PIX_BAYGR10" },
    { GVSP_PIX_BAYRG10,                 "GVSP_PIX_BAYRG10" },
    { GVSP_PIX_BAYGB10,                 "GVSP_PIX_BAYGB10" },
    { GVSP_PIX_BAYBG10,                 "GVSP_PIX_BAYBG10" },
    { GVSP_PIX_BAYGR12,                 "GVSP_PIX_BAYGR12" },
    { GVSP_PIX_BAYRG12,                 "GVSP_PIX_BAYRG12" },
    { GVSP_PIX_BAYGB12,                 "GVSP_PIX_BAYGB12" },
    { GVSP_PIX_BAYBG12,                 "GVSP_PIX_BAYBG12" },
    { GVSP_PIX_MONO14,                  "GVSP_PIX_MONO14" },
    { GVSP_PIX_BAYGR16,                 "GVSP_PIX_BAYGR16" },
    { GVSP_PIX_BAYRG16,                 "GVSP_PIX_BAYRG16" },
    { GVSP_PIX_BAYGB16,                 "GVSP_PIX_BAYGB16" },
    { GVSP_PIX_BAYBG16,                 "GVSP_PIX_BAYBG16" },

    { GVSP_PIX_YUV411_8_UYYVYY,         "GVSP_PIX_YUV411_8_UYYVYY" },
    { GVSP_PIX_YCBCR422_8_CBYYCRYY,     "GVSP_PIX_YCBCR422_8_CBYYCRYY" },
    { GVSP_PIX_YCBCR601_411_8_CBYYCRYY, "GVSP_PIX_YCBCR601_411_8_CBYYCRYY" },
    { GVSP_PIX_YCBCR709_411_8_CBYYCRYY, "GVSP_PIX_YCBCR709_411_8_CBYYCRYY" },

    { GVSP_PIX_YUV422_8_UYVY,           "GVSP_PIX_YUV422_8_UYVY" },
    { GVSP_PIX_YUV422_8,                "GVSP_PIX_YUV422_8" },
    { GVSP_PIX_RGB565P,                 "GVSP_PIX_RGB565P" },
    { GVSP_PIX_BGR565P,                 "GVSP_PIX_BGR565P" },
    { GVSP_PIX_YCBCR422_8,              "GVSP_PIX_YCBCR422_8" },
    { GVSP_PIX_YCBCR601_422_8,          "GVSP_PIX_YCBCR601_422_8" },
    { GVSP_PIX_YCBCR709_422_8,          "GVSP_PIX_YCBCR709_422_8" },
    { GVSP_PIX_YCBCR422_8_CBYCRY,       "GVSP_PIX_YCBCR422_8_CBYCRY" },
    { GVSP_PIX_YCBCR601_422_8_CBYCRY,   "GVSP_PIX_YCBCR601_422_8_CBYCRY" },
    { GVSP_PIX_YCBCR709_422_8_CBYCRY,   "GVSP_PIX_YCBCR709_422_8_CBYCRY" },

    { GVSP_PIX_RGB8,                    "GVSP_PIX_RGB8" },
    { GVSP_PIX_BGR8,                    "GVSP_PIX_BGR8" },
    { GVSP_PIX_YUV8_UYV,                "GVSP_PIX_YUV8_UYV" },
    { GVSP_PIX_RGB8_PLANAR,             "GVSP_PIX_RGB8_PLANAR" },
    { GVSP_PIX_YCBCR8_CBYCR,            "GVSP_PIX_YCBCR8_CBYCR" },
    { GVSP_PIX_YCBCR601_8_CBYCR,        "GVSP_PIX_YCBCR601_8_CBYCR" },
    { GVSP_PIX_YCBCR709_411_8_CBYCR,    "GVSP_PIX_YCBCR709_411_8_CBYCR" },

    { GVSP_PIX_RGBA8,                   "GVSP_PIX_RGBA8" },
    { GVSP_PIX_BGRA8,                   "GVSP_PIX_BGRA8" },
    { GVSP_PIX_RGB10V1_PACKED,          "GVSP_PIX_RGB10V1_PACKED" },
    { GVSP_PIX_RGB10P32,                "GVSP_PIX_RGB10P32" },

    { GVSP_PIX_RGB12V1_PACKED,          "GVSP_PIX_RGB12V1_PACKED" },

    { GVSP_PIX_RGB10,                   "GVSP_PIX_RGB10" },
    { GVSP_PIX_BGR10,                   "GVSP_PIX_BGR10" },
    { GVSP_PIX_RGB12,                   "GVSP_PIX_RGB12" },
    { GVSP_PIX_BGR12,                   "GVSP_PIX_BGR12" },
    { GVSP_PIX_RGB10_PLANAR,            "GVSP_PIX_RGB10_PLANAR" },
    { GVSP_PIX_RGB12_PLANAR,            "GVSP_PIX_RGB12_PLANAR" },
    { GVSP_PIX_RGB16_PLANAR,            "GVSP_PIX_RGB16_PLANAR" },
    { GVSP_PIX_RGB16,                   "GVSP_PIX_RGB16" },

    { 0, NULL },
};

static value_string_ext pixeltypenames_ext = VALUE_STRING_EXT_INIT(pixeltypenames);

static const value_string colornames[] = {
    { GVSP_PIX_MONO >> 24,   "Mono" },
    { GVSP_PIX_COLOR >> 24,  "Color" },
    { GVSP_PIX_CUSTOM >> 24, "Custom" },
    { 0, NULL },
};

static const true_false_string directionnames = {
    "Receiver",
    "Transmitter"
};


static int hf_gvsp_status = -1;
static int hf_gvsp_blockid16 = -1;
static int hf_gvsp_flags = -1;
static int hf_gvsp_flagdevicespecific0 = -1;
static int hf_gvsp_flagdevicespecific1 = -1;
static int hf_gvsp_flagdevicespecific2 = -1;
static int hf_gvsp_flagdevicespecific3 = -1;
static int hf_gvsp_flagdevicespecific4 = -1;
static int hf_gvsp_flagdevicespecific5 = -1;
static int hf_gvsp_flagdevicespecific6 = -1;
static int hf_gvsp_flagdevicespecific7 = -1;
static int hf_gvsp_flagresendrangeerror = -1;
static int hf_gvsp_flagpreviousblockdropped = -1;
static int hf_gvsp_flagpacketresend = -1;
static int hf_gvsp_format = -1;
static int hf_gvsp_packetid24 = -1;
static int hf_gvsp_blockid64 = -1;
static int hf_gvsp_packetid32 = -1;
static int hf_gvsp_payloadtype = -1;
static int hf_gvsp_payloaddata = -1;
static int hf_gvsp_timestamp = -1;
static int hf_gvsp_pixelformat = -1;
static int hf_gvsp_sizex = -1;
static int hf_gvsp_sizey = -1;
static int hf_gvsp_offsetx = -1;
static int hf_gvsp_offsety = -1;
static int hf_gvsp_paddingx = -1;
static int hf_gvsp_paddingy = -1;
static int hf_gvsp_payloaddatasize = -1;
static int hf_gvsp_pixelcolor = -1;
static int hf_gvsp_pixeloccupy = -1;
static int hf_gvsp_pixelid = -1;
static int hf_gvsp_filename = -1;
static int hf_gvsp_payloadlength = -1;
static int hf_gvsp_fieldinfo = -1;
static int hf_gvsp_fieldid = -1;
static int hf_gvsp_fieldcount = -1;
static int hf_gvsp_genericflags = -1;
static int hf_gvsp_timestamptickfrequency = -1;
static int hf_gvsp_dataformat = -1;
static int hf_gvsp_packetizationmode = -1;
static int hf_gvsp_packetsize = -1;
static int hf_gvsp_profileidc = -1;
static int hf_gvsp_cs = -1;
static int hf_gvsp_cs0 = -1;
static int hf_gvsp_cs1 = -1;
static int hf_gvsp_cs2 = -1;
static int hf_gvsp_cs3 = -1;
static int hf_gvsp_levelidc = -1;
static int hf_gvsp_sropinterleavingdepth = -1;
static int hf_gvsp_sropmaxdondiff = -1;
static int hf_gvsp_sropdeintbufreq = -1;
static int hf_gvsp_sropinitbuftime = -1;
static int hf_gvsp_zoneinfo = -1;
static int hf_gvsp_zoneid = -1;
static int hf_gvsp_endofzone = -1;
static int hf_gvsp_addressoffsethigh = -1;
static int hf_gvsp_addressoffsetlow = -1;
static int hf_gvsp_sc_zone_direction = -1;
static int hf_gvsp_sc_zone0_direction = -1;
static int hf_gvsp_sc_zone1_direction = -1;
static int hf_gvsp_sc_zone2_direction = -1;
static int hf_gvsp_sc_zone3_direction = -1;
static int hf_gvsp_sc_zone4_direction = -1;
static int hf_gvsp_sc_zone5_direction = -1;
static int hf_gvsp_sc_zone6_direction = -1;
static int hf_gvsp_sc_zone7_direction = -1;
static int hf_gvsp_sc_zone8_direction = -1;
static int hf_gvsp_sc_zone9_direction = -1;
static int hf_gvsp_sc_zone10_direction = -1;
static int hf_gvsp_sc_zone11_direction = -1;
static int hf_gvsp_sc_zone12_direction = -1;
static int hf_gvsp_sc_zone13_direction = -1;
static int hf_gvsp_sc_zone14_direction = -1;
static int hf_gvsp_sc_zone15_direction = -1;
static int hf_gvsp_sc_zone16_direction = -1;
static int hf_gvsp_sc_zone17_direction = -1;
static int hf_gvsp_sc_zone18_direction = -1;
static int hf_gvsp_sc_zone19_direction = -1;
static int hf_gvsp_sc_zone20_direction = -1;
static int hf_gvsp_sc_zone21_direction = -1;
static int hf_gvsp_sc_zone22_direction = -1;
static int hf_gvsp_sc_zone23_direction = -1;
static int hf_gvsp_sc_zone24_direction = -1;
static int hf_gvsp_sc_zone25_direction = -1;
static int hf_gvsp_sc_zone26_direction = -1;
static int hf_gvsp_sc_zone27_direction = -1;
static int hf_gvsp_sc_zone28_direction = -1;
static int hf_gvsp_sc_zone29_direction = -1;
static int hf_gvsp_sc_zone30_direction = -1;
static int hf_gvsp_sc_zone31_direction = -1;
static int hf_gvsp_chunkdatapayloadlengthex = -1;
static int hf_gvsp_chunklayoutidex = -1;


static const int *pixelformat_fields[] = {
    &hf_gvsp_pixelcolor,
    &hf_gvsp_pixeloccupy,
    &hf_gvsp_pixelid,
    NULL
};

static const int *fieldinfo_fields[] = {
    &hf_gvsp_fieldid,
    &hf_gvsp_fieldcount,
    NULL
};

static const int *cs_fields[] = {
    &hf_gvsp_cs0,
    &hf_gvsp_cs1,
    &hf_gvsp_cs2,
    &hf_gvsp_cs3,
    NULL
};

static const int *sc_zone_direction_fields[] = {
    &hf_gvsp_sc_zone0_direction,
    &hf_gvsp_sc_zone1_direction,
    &hf_gvsp_sc_zone2_direction,
    &hf_gvsp_sc_zone3_direction,
    &hf_gvsp_sc_zone4_direction,
    &hf_gvsp_sc_zone5_direction,
    &hf_gvsp_sc_zone6_direction,
    &hf_gvsp_sc_zone7_direction,
    &hf_gvsp_sc_zone8_direction,
    &hf_gvsp_sc_zone9_direction,
    &hf_gvsp_sc_zone10_direction,
    &hf_gvsp_sc_zone11_direction,
    &hf_gvsp_sc_zone12_direction,
    &hf_gvsp_sc_zone13_direction,
    &hf_gvsp_sc_zone14_direction,
    &hf_gvsp_sc_zone15_direction,
    &hf_gvsp_sc_zone16_direction,
    &hf_gvsp_sc_zone17_direction,
    &hf_gvsp_sc_zone18_direction,
    &hf_gvsp_sc_zone19_direction,
    &hf_gvsp_sc_zone20_direction,
    &hf_gvsp_sc_zone21_direction,
    &hf_gvsp_sc_zone22_direction,
    &hf_gvsp_sc_zone23_direction,
    &hf_gvsp_sc_zone24_direction,
    &hf_gvsp_sc_zone25_direction,
    &hf_gvsp_sc_zone26_direction,
    &hf_gvsp_sc_zone27_direction,
    &hf_gvsp_sc_zone28_direction,
    &hf_gvsp_sc_zone29_direction,
    &hf_gvsp_sc_zone30_direction,
    &hf_gvsp_sc_zone31_direction,
    NULL
};

static const int *zoneinfo_fields[] = {
    &hf_gvsp_zoneid,
    &hf_gvsp_endofzone,
    NULL
};

static const int *flags_fields[] = {
    &hf_gvsp_flagdevicespecific0,
    &hf_gvsp_flagdevicespecific1,
    &hf_gvsp_flagdevicespecific2,
    &hf_gvsp_flagdevicespecific3,
    &hf_gvsp_flagdevicespecific4,
    &hf_gvsp_flagdevicespecific5,
    &hf_gvsp_flagdevicespecific6,
    &hf_gvsp_flagdevicespecific7,
    &hf_gvsp_flagresendrangeerror,
    &hf_gvsp_flagpreviousblockdropped,
    &hf_gvsp_flagpacketresend,
    NULL
};

/*
    \brief Dissects the image leader
 */

static gint dissect_image_leader(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Field info */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset, hf_gvsp_fieldinfo,
                           ett_gvsp_fieldinfo, fieldinfo_fields, ENC_BIG_ENDIAN);

    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Timestamp */
    proto_tree_add_item(gvsp_tree, hf_gvsp_timestamp, tvb, offset + 4, 8, ENC_BIG_ENDIAN);

    /* Pixel format */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset + 12, hf_gvsp_pixelformat, ett_gvsp_pixelformat,
                                  pixelformat_fields, ENC_BIG_ENDIAN);

    /* Size X */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sizex, tvb, offset + 16, 4, ENC_BIG_ENDIAN);

    /* Size Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sizey, tvb, offset + 20, 4, ENC_BIG_ENDIAN);

    /* Offset X */
    proto_tree_add_item(gvsp_tree, hf_gvsp_offsetx, tvb, offset + 24, 4, ENC_BIG_ENDIAN);

    /* Offset Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_offsety, tvb, offset + 28, 4, ENC_BIG_ENDIAN);

    /* Padding X */
    proto_tree_add_item(gvsp_tree, hf_gvsp_paddingx, tvb, offset + 32, 2, ENC_BIG_ENDIAN);

    /* Padding Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_paddingy, tvb, offset + 34, 2, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 36;
}


/*
    \brief Dissects the image trailer
 */

static gint dissect_image_trailer(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Size Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sizey, tvb, offset + 4, 4, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 8;
}


/*
    \brief Dissects the raw data leader
 */

static gint dissect_raw_data_leader(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Timestamp */
    proto_tree_add_item(gvsp_tree, hf_gvsp_timestamp, tvb, offset + 4, 8, ENC_BIG_ENDIAN);

    /* Payload data size */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloaddatasize, tvb, offset + 12, 8, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 20;
}


/*
    \brief Dissects a file leader
 */

static gint dissect_file_leader(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    guint file_length = 0;

    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Timestamp */
    proto_tree_add_item(gvsp_tree, hf_gvsp_timestamp, tvb, offset + 4, 8, ENC_BIG_ENDIAN);

    /* Payload data size */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloaddatasize, tvb, offset + 12, 8, ENC_BIG_ENDIAN);

    /* Filename */
    file_length = tvb_strsize(tvb, offset + 20);
    proto_tree_add_item(gvsp_tree, hf_gvsp_filename, tvb, offset + 20, file_length, ENC_ASCII|ENC_NA);

    if (20 + file_length > G_MAXINT)
        return -1;

    /* Return dissected byte count (for all-in dissection) */
    return (gint)(20 + file_length);
}


/*
    \brief Dissects a chunk data leader
 */

static gint dissect_chunk_data_leader(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Timestamp */
    proto_tree_add_item(gvsp_tree, hf_gvsp_timestamp, tvb, offset + 4, 8, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 12;
}


/*
    \brief Dissects a chunk data trailer
 */

static gint dissect_chunk_data_trailer(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Payload data length */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadlength, tvb, offset + 4, 4, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 8;
}


/*
    \brief Dissects extended chunk data leader
 */

static gint dissect_extended_chunk_data_leader(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Field info */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset, hf_gvsp_fieldinfo,
                                  ett_gvsp_fieldinfo, fieldinfo_fields, ENC_BIG_ENDIAN);
    /* Generic flags */
    proto_tree_add_item(gvsp_tree, hf_gvsp_genericflags, tvb, offset + 1, 1, ENC_BIG_ENDIAN);

    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Timestamp */
    proto_tree_add_item(gvsp_tree, hf_gvsp_timestamp, tvb, offset + 4, 8, ENC_BIG_ENDIAN);

    /* Pixel format */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset + 12, hf_gvsp_pixelformat, ett_gvsp_pixelformat,
                                  pixelformat_fields, ENC_BIG_ENDIAN);

    /* Size X */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sizex, tvb, offset + 16, 4, ENC_BIG_ENDIAN);

    /* Size Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sizey, tvb, offset + 20, 4, ENC_BIG_ENDIAN);

    /* Offset X */
    proto_tree_add_item(gvsp_tree, hf_gvsp_offsetx, tvb, offset + 24, 4, ENC_BIG_ENDIAN);

    /* Offset Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_offsety, tvb, offset + 28, 4, ENC_BIG_ENDIAN);

    /* Padding X */
    proto_tree_add_item(gvsp_tree, hf_gvsp_paddingx, tvb, offset + 32, 2, ENC_BIG_ENDIAN);

    /* Padding Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_paddingy, tvb, offset + 34, 2, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 36;
}


/*
    \brief Dissects extended chunk data trailer
 */

static gint dissect_extended_chunk_data_trailer(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Payload data length */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadlength, tvb, offset + 4, 4, ENC_BIG_ENDIAN);

    /* Size Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sizey, tvb, offset + 8, 4, ENC_BIG_ENDIAN);

    /* Chunk layout ID */
    proto_tree_add_item(gvsp_tree, hf_gvsp_chunklayoutidex, tvb, offset + 12, 4, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 16;
}


/*
    \brief Dissects a JPEG leader
 */

static gint dissect_jpeg_leader(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Field info */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset, hf_gvsp_fieldinfo,
                                  ett_gvsp_fieldinfo, fieldinfo_fields, ENC_BIG_ENDIAN);

    /* Generic flags */
    proto_tree_add_item(gvsp_tree, hf_gvsp_genericflags, tvb, offset + 1, 1, ENC_BIG_ENDIAN);

    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Timestamp */
    proto_tree_add_item(gvsp_tree, hf_gvsp_timestamp, tvb, offset + 4, 8, ENC_BIG_ENDIAN);

    /* Payload data size */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloaddatasize, tvb, offset + 12, 8, ENC_BIG_ENDIAN);

    /* Timestamp tick frequency */
    proto_tree_add_item(gvsp_tree, hf_gvsp_timestamptickfrequency, tvb, offset + 20, 8, ENC_BIG_ENDIAN);

    /* Data format */
    proto_tree_add_item(gvsp_tree, hf_gvsp_dataformat, tvb, offset + 28, 4, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 32;
}


/*
 \brief Dissects a H264 leader
 */

static gint dissect_h264_leader(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Field info */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset, hf_gvsp_fieldinfo,
                                  ett_gvsp_fieldinfo, fieldinfo_fields, ENC_BIG_ENDIAN);

    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Payload data size */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloaddatasize, tvb, offset + 4, 8, ENC_BIG_ENDIAN);

    /* packetization_mode */
    proto_tree_add_item(gvsp_tree, hf_gvsp_packetizationmode, tvb, offset + 13, 1, ENC_BIG_ENDIAN);

    /* packet_size */
    proto_tree_add_item(gvsp_tree, hf_gvsp_packetsize, tvb, offset + 14, 2, ENC_BIG_ENDIAN);

    /* profile_idc */
    proto_tree_add_item(gvsp_tree, hf_gvsp_profileidc, tvb, offset + 17, 1, ENC_BIG_ENDIAN);

    /* cs0, 1, 2 ,3 */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset + 18, hf_gvsp_cs, ett_gvsp_cs,
                           cs_fields, ENC_BIG_ENDIAN);

    /* level_idc */
    proto_tree_add_item(gvsp_tree, hf_gvsp_levelidc, tvb, offset + 19, 1, ENC_BIG_ENDIAN);

    /* srop_interleaving_depth */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sropinterleavingdepth, tvb, offset + 20, 2, ENC_BIG_ENDIAN);

    /* srop_max_don_diff */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sropmaxdondiff, tvb, offset + 22, 2, ENC_BIG_ENDIAN);

    /* srop_deint_buf_req */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sropdeintbufreq, tvb, offset + 24, 4, ENC_BIG_ENDIAN);

    /* srop_init_buf_time */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sropinitbuftime, tvb, offset + 28, 4, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 32;
}


/*
    \brief Dissects the multizone image leader
 */

static gint dissect_multizone_image_leader(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Field info */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset, hf_gvsp_fieldinfo,
                                  ett_gvsp_fieldinfo, fieldinfo_fields, ENC_BIG_ENDIAN);
    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Timestamp */
    proto_tree_add_item(gvsp_tree, hf_gvsp_timestamp, tvb, offset + 4, 8, ENC_BIG_ENDIAN);

    /* Zone direction */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset + 12, hf_gvsp_sc_zone_direction,
                           ett_gvsp_sc_zone_direction, sc_zone_direction_fields, ENC_BIG_ENDIAN);

    /* Pixel format */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset + 16, hf_gvsp_pixelformat, ett_gvsp_pixelformat,
                                  pixelformat_fields, ENC_BIG_ENDIAN);

    /* Size X */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sizex, tvb, offset + 20, 4, ENC_BIG_ENDIAN);

    /* Size Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_sizey, tvb, offset + 24, 4, ENC_BIG_ENDIAN);

    /* Offset X */
    proto_tree_add_item(gvsp_tree, hf_gvsp_offsetx, tvb, offset + 28, 4, ENC_BIG_ENDIAN);

    /* Offset Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_offsety, tvb, offset + 32, 4, ENC_BIG_ENDIAN);

    /* Padding X */
    proto_tree_add_item(gvsp_tree, hf_gvsp_paddingx, tvb, offset + 36, 2, ENC_BIG_ENDIAN);

    /* Padding Y */
    proto_tree_add_item(gvsp_tree, hf_gvsp_paddingy, tvb, offset + 38, 2, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 40;
}


/*
    \brief Dissects a generic trailer (contains just the payload type)
 */

static gint dissect_generic_trailer(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Payload type */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloadtype, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 4;
}


/*
    \brief Dissects a generic trailer (contains just the payload type)
 */

static gint dissect_extra_chunk_info(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Chunk data payload length */
    proto_tree_add_item(gvsp_tree, hf_gvsp_chunkdatapayloadlengthex, tvb, offset, 4, ENC_BIG_ENDIAN);

    /* Chunk layoud id */
    proto_tree_add_item(gvsp_tree, hf_gvsp_chunklayoutidex, tvb, offset + 4, 4, ENC_BIG_ENDIAN);

    /* Return dissected byte count (for all-in dissection) */
    return 8;
}


/*
    \brief Dissects a packet payload
 */

static void dissect_packet_payload(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloaddata, tvb, offset, -1, ENC_NA);
}


/*
    \brief Dissects a packet payload for H264
 */

static void dissect_packet_payload_h264(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Timestamp */
    proto_tree_add_item(gvsp_tree, hf_gvsp_timestamp, tvb, offset, 8, ENC_BIG_ENDIAN);

    /* Data */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloaddata, tvb, offset + 8, -1, ENC_NA);
}


/*
    \brief Dissects a packet payload for multizone
 */

static void dissect_packet_payload_multizone(proto_tree *gvsp_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
    /* Zone information */
    proto_tree_add_bitmask(gvsp_tree, tvb, offset + 1, hf_gvsp_zoneinfo,
                           ett_gvsp_zoneinfo, zoneinfo_fields, ENC_BIG_ENDIAN);

    /* Address offset high */
    proto_tree_add_item(gvsp_tree, hf_gvsp_addressoffsethigh, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

    /* Address offset low */
    proto_tree_add_item(gvsp_tree, hf_gvsp_addressoffsetlow, tvb, offset + 4, 4, ENC_BIG_ENDIAN);

    /* Data */
    proto_tree_add_item(gvsp_tree, hf_gvsp_payloaddata, tvb, offset + 8, -1, ENC_NA);
}


/*
    \brief Dissects an all in packet
 */

static void dissect_packet_all_in(proto_tree *gvsp_tree, tvbuff_t *tvb, gint offset, packet_info *pinfo, gvsp_packet_info *info)
{
    gint ret;

    switch (info->payloadtype)
    {
    case GVSP_PAYLOAD_IMAGE:
        offset += dissect_image_leader(gvsp_tree, tvb, pinfo, offset);
        offset += dissect_image_trailer(gvsp_tree, tvb, pinfo, offset);
        if (info->chunk != 0)
        {
            offset += dissect_extra_chunk_info(gvsp_tree, tvb, pinfo, offset);
        }
        dissect_packet_payload(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_RAWDATA:
        offset += dissect_raw_data_leader(gvsp_tree, tvb, pinfo, offset);
        offset += dissect_generic_trailer(gvsp_tree, tvb, pinfo, offset);
        if (info->chunk != 0)
        {
            offset += dissect_extra_chunk_info(gvsp_tree, tvb, pinfo, offset);
        }
        dissect_packet_payload(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_FILE:
        ret = dissect_file_leader(gvsp_tree, tvb, pinfo, offset);
        if (ret < 0)
            break;
        offset += ret;
        offset += dissect_generic_trailer(gvsp_tree, tvb, pinfo, offset);
        if (info->chunk != 0)
        {
            offset += dissect_extra_chunk_info(gvsp_tree, tvb, pinfo, offset);
        }
        dissect_packet_payload(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_CHUNKDATA:
        offset += dissect_chunk_data_leader(gvsp_tree, tvb, pinfo, offset);
        offset += dissect_chunk_data_trailer(gvsp_tree, tvb, pinfo, offset);
        if (info->chunk != 0)
        {
            offset += dissect_extra_chunk_info(gvsp_tree, tvb, pinfo, offset);
        }
        dissect_packet_payload(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_EXTENDEDCHUNKDATA:
        offset += dissect_extended_chunk_data_leader(gvsp_tree, tvb, pinfo, offset);
        offset += dissect_extended_chunk_data_trailer(gvsp_tree, tvb, pinfo, offset);
        if (info->chunk != 0)
        {
            offset += dissect_extra_chunk_info(gvsp_tree, tvb, pinfo, offset);
        }
        dissect_packet_payload(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_JPEG:
    case GVSP_PAYLOAD_JPEG2000:
        offset += dissect_jpeg_leader(gvsp_tree, tvb, pinfo, offset);
        offset += dissect_generic_trailer(gvsp_tree, tvb, pinfo, offset);
        if (info->chunk != 0)
        {
            offset += dissect_extra_chunk_info(gvsp_tree, tvb, pinfo, offset);
        }
        dissect_packet_payload(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_H264:
        offset += dissect_h264_leader(gvsp_tree, tvb, pinfo, offset);
        offset += dissect_generic_trailer(gvsp_tree, tvb, pinfo, offset);
        if (info->chunk != 0)
        {
            offset += dissect_extra_chunk_info(gvsp_tree, tvb, pinfo, offset);
        }
        dissect_packet_payload_h264(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_MULTIZONEIMAGE:
        offset += dissect_multizone_image_leader(gvsp_tree, tvb, pinfo, offset);
        offset += dissect_image_trailer(gvsp_tree, tvb, pinfo, offset);
        if (info->chunk != 0)
        {
            offset += dissect_extra_chunk_info(gvsp_tree, tvb, pinfo, offset);
        }
        dissect_packet_payload_multizone(gvsp_tree, tvb, pinfo, offset);
        break;
    }
}


/*
    \brief Dissects a leader packet
 */

static void dissect_packet_leader(proto_tree *gvsp_tree, tvbuff_t *tvb, gint offset, packet_info *pinfo, gvsp_packet_info *info)
{
    switch (info->payloadtype)
    {
    case GVSP_PAYLOAD_IMAGE:
        dissect_image_leader(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_RAWDATA:
        dissect_raw_data_leader(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_FILE:
        dissect_file_leader(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_CHUNKDATA:
        dissect_chunk_data_leader(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_EXTENDEDCHUNKDATA:
        dissect_extended_chunk_data_leader(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_JPEG:
    case GVSP_PAYLOAD_JPEG2000:
        dissect_jpeg_leader(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_H264:
        dissect_h264_leader(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_MULTIZONEIMAGE:
        dissect_multizone_image_leader(gvsp_tree, tvb, pinfo, offset);
        break;

    default:
        break;
    }
}


/*
    \brief Dissects a trailer packet
 */

static void dissect_packet_trailer(proto_tree *gvsp_tree, tvbuff_t *tvb, gint offset, packet_info *pinfo, gvsp_packet_info *info)
{
    switch (info->payloadtype)
    {
    case GVSP_PAYLOAD_IMAGE:
    case GVSP_PAYLOAD_MULTIZONEIMAGE:
        offset += dissect_image_trailer(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_CHUNKDATA:
        offset += dissect_chunk_data_trailer(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_EXTENDEDCHUNKDATA:
        offset += dissect_extended_chunk_data_trailer(gvsp_tree, tvb, pinfo, offset);
        break;

    case GVSP_PAYLOAD_RAWDATA:
    case GVSP_PAYLOAD_FILE:
    case GVSP_PAYLOAD_JPEG:
    case GVSP_PAYLOAD_JPEG2000:
    case GVSP_PAYLOAD_H264:
        offset += dissect_generic_trailer(gvsp_tree, tvb, pinfo, offset);
        break;

    default:
        break;
    }

    if (info->chunk != 0)
    {
        dissect_extra_chunk_info(gvsp_tree, tvb, pinfo, offset);
    }
}


/*
    \brief Point of entry of all GVSP dissection
 */

static int dissect_gvsp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
    proto_item *ti = NULL;
    gint offset = 0;
    proto_tree *gvsp_tree = NULL;
    gvsp_packet_info info;

    if ((tvb_reported_length(tvb) <  GVSP_MIN_PACKET_SIZE) ||
        (tvb_captured_length(tvb) < 5))
    {
        return 0;
    }

    memset(&info, 0x00, sizeof(info));

    info.format = tvb_get_guint8(tvb, 4);

    if ((info.format & 0x80) && tvb_reported_length(tvb) < GVSP_V2_MIN_PACKET_SIZE)
    {
        return 0;
    }

    /* Set the protocol column */
    col_set_str(pinfo->cinfo, COL_PROTOCOL, "GVSP");

    /* Clear out stuff in the info column */
    col_clear(pinfo->cinfo, COL_INFO);

    /* Adds "Gigabit-Ethernet Streaming Protocol" heading to protocol tree */
    /* We will add fields to this using the gvsp_tree pointer */
    ti = proto_tree_add_item(tree, proto_gvsp, tvb, offset, -1, ENC_NA);
    gvsp_tree = proto_item_add_subtree(ti, ett_gvsp);

    /* Look for extended ID flag and then clear it */
    info.enhanced = info.format & 0x80;
    info.format &= 0x7F;

    /* Add packet format to info string */
    col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str(info.format, formatnames, "Unknown Format (0x%x)"));

    /* Dissect status */
    proto_tree_add_item(gvsp_tree, hf_gvsp_status, tvb, offset, 2, ENC_BIG_ENDIAN);
    offset += 2;

    if (info.enhanced == 0)
    {
        info.blockid = tvb_get_ntohs(tvb, offset);
        proto_tree_add_item(gvsp_tree, hf_gvsp_blockid16, tvb, offset, 2, ENC_BIG_ENDIAN);
    }
    else
    {
        guint8 flags;
        flags = tvb_get_guint8(tvb, offset + 1);
        info.flag_resendrangeerror = flags & 0x04;
        info.flag_previousblockdropped = flags & 0x02;
        info.flag_packetresend = flags & 0x01;

        proto_tree_add_bitmask(gvsp_tree, tvb, offset, hf_gvsp_flags,
                               ett_gvsp_flags, flags_fields, ENC_BIG_ENDIAN);
    }

    offset += 2;

    proto_tree_add_item(gvsp_tree, hf_gvsp_format, tvb, offset, 1, ENC_BIG_ENDIAN);
    offset++;

    if (info.enhanced == 0)
    {
        info.packetid = tvb_get_ntohl(tvb, offset - 1);
        info.packetid &= 0x00FFFFFF;
        proto_tree_add_item(gvsp_tree, hf_gvsp_packetid24, tvb, offset, 3, ENC_BIG_ENDIAN);
    }

    offset += 3;

    if (info.enhanced != 0)
    {
        info.blockid = tvb_get_ntoh64(tvb, offset);

        /* Dissect 64 bit block ID */
        proto_tree_add_item(gvsp_tree, hf_gvsp_blockid64, tvb, offset, 8, ENC_BIG_ENDIAN);
        offset += 8;

        /* Dissect 32 bit packet ID */
        info.packetid = tvb_get_ntohl(tvb, offset);
        proto_tree_add_item(gvsp_tree, hf_gvsp_packetid32, tvb, offset, 4, ENC_BIG_ENDIAN);
        offset += 4;
    }

    /* At this point offset is pointing to end of packet */

    col_append_fstr(pinfo->cinfo, COL_INFO, "[Block ID: %" G_GINT64_MODIFIER "u Packet ID: %d] ", (guint64)info.blockid, info.packetid);

    if (info.flag_resendrangeerror != 0)
    {
        /* Add range error to info string */
        col_append_fstr(pinfo->cinfo, COL_INFO, "[RANGE_ERROR] ");
    }

    if (info.flag_previousblockdropped != 0)
    {
        /* Add block dropped to info string */
        col_append_fstr(pinfo->cinfo, COL_INFO, "[BLOCK_DROPPED] ");
    }

    if (info.flag_packetresend != 0)
    {
        /* Add packet resend to info string */
        col_append_fstr(pinfo->cinfo, COL_INFO, "[PACKET_RESEND] ");
    }

    /* Process packet types that are payload agnostic */
    switch (info.format)
    {
    case GVSP_PACKET_PAYLOAD:
        dissect_packet_payload(gvsp_tree, tvb, pinfo, offset);
        return tvb_captured_length(tvb);

    case GVSP_PACKET_PAYLOAD_H264:
        dissect_packet_payload_h264(gvsp_tree, tvb, pinfo, offset);
        return tvb_captured_length(tvb);

    case GVSP_PACKET_PAYLOAD_MULTIZONE:
        dissect_packet_payload_multizone(gvsp_tree, tvb, pinfo, offset);
        return tvb_captured_length(tvb);

    default:
        break;
    }

    /* Get payload type, clear chunk bit */
    if (tvb_captured_length_remaining(tvb, offset) >= 2)
    {
        info.payloadtype = tvb_get_ntohs(tvb, offset + 2);
    }

    info.chunk = info.payloadtype & 0x4000;
    info.payloadtype &= 0x3FFF;


    /* Add payload type to information string */
    col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str_ext(info.payloadtype, &payloadtypenames_ext, "Unknown Payload Type (0x%x)"));

    /* Process packet types for specific payload types */
    switch (info.format)
    {
    case GVSP_PACKET_ALLIN:
        dissect_packet_all_in(gvsp_tree, tvb, offset, pinfo, &info);
        break;
    case GVSP_PACKET_LEADER:
        dissect_packet_leader(gvsp_tree, tvb, offset, pinfo, &info);
        break;
    case GVSP_PACKET_TRAILER:
        dissect_packet_trailer(gvsp_tree, tvb, offset, pinfo, &info);
        break;
    default:
        break;
    }
    return tvb_captured_length(tvb);
}

static gboolean dissect_gvsp_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
    conversation_t *conversation = NULL;
    guint16 status_code = 0;
    guint8 format = 0;

    /* Verify packet size */
    if ((tvb_reported_length(tvb) <  GVSP_MIN_PACKET_SIZE) ||
        (tvb_captured_length(tvb) < 5))
    {
        return FALSE;
    }

    /* Larger packet size if Extended ID flag is set */
    format = tvb_get_guint8(tvb, 4);

    if ((format & 0x80) && tvb_reported_length(tvb) < GVSP_V2_MIN_PACKET_SIZE)
    {
        return FALSE;
    }

    /* Check for valid status codes */
    status_code = tvb_get_ntohs(tvb, 0);

    if (status_code == 0x0000 ||
        status_code == 0x0100 ||
        (status_code >= 0x8001 && status_code <= 0x8016) ||
        status_code == 0x8FFF)
    {
        format &= 0x7F;

        /* Check for valid format types */
        if (format >= 1 && format <= 6)
        {
            conversation = find_or_create_conversation(pinfo);
            conversation_set_dissector(conversation, gvsp_handle);
            dissect_gvsp(tvb, pinfo, tree, data);
            return TRUE;
        }
    }

    return FALSE;
}

/*
    \brief Registers the dissector. Invoked at program startup.
 */

void proto_register_gvsp(void)
{
    module_t *gvsp_module;

    static hf_register_info hfgvsp[] =
    {
        {& hf_gvsp_status,
        { "Status", "gvsp.status",
        FT_UINT16, BASE_HEX|BASE_EXT_STRING, &statusnames_ext, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_blockid16,
        { "Block ID (16 bits)", "gvsp.blockid16",
        FT_UINT16, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_flags,
        { "Flags", "gvsp.flags",
        FT_UINT16, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_flagdevicespecific0,
        { "Flag Device Specific 0", "gvsp.flag.devicespecific0",
        FT_UINT16, BASE_HEX, NULL, 0x8000,
        NULL, HFILL
        }},

        {& hf_gvsp_flagdevicespecific1,
        { "Flag Device Specific 1", "gvsp.flag.devicespecific1",
        FT_UINT16, BASE_HEX, NULL, 0x4000,
        NULL, HFILL
        }},

        {& hf_gvsp_flagdevicespecific2,
        { "Flag Device Specific 2", "gvsp.flag.devicespecific2",
        FT_UINT16, BASE_HEX, NULL, 0x2000,
        NULL, HFILL
        }},

        {& hf_gvsp_flagdevicespecific3,
        { "Flag Device Specific 3", "gvsp.flag.devicespecific3",
        FT_UINT16, BASE_HEX, NULL, 0x1000,
        NULL, HFILL
        }},

        {& hf_gvsp_flagdevicespecific4,
        { "Flag Device Specific 4", "gvsp.flag.devicespecific4",
        FT_UINT16, BASE_HEX, NULL, 0x0800,
        NULL, HFILL
        }},

        {& hf_gvsp_flagdevicespecific5,
        { "Flag Device Specific 5", "gvsp.flag.devicespecific5",
        FT_UINT16, BASE_HEX, NULL, 0x0400,
        NULL, HFILL
        }},

        {& hf_gvsp_flagdevicespecific6,
        { "Flag Device Specific 6", "gvsp.flag.devicespecific6",
        FT_UINT16, BASE_HEX, NULL, 0x0200,
        NULL, HFILL
        }},

        {& hf_gvsp_flagdevicespecific7,
        { "Flag Device Specific 7", "gvsp.flag.devicespecific7",
        FT_UINT16, BASE_HEX, NULL, 0x0100,
        NULL, HFILL
        }},

        {& hf_gvsp_flagresendrangeerror,
        { "Flag Resend Range Error 7", "gvsp.flag.resendrangeerror",
        FT_UINT16, BASE_HEX, NULL, 0x0004,
        NULL, HFILL
        }},

        {& hf_gvsp_flagpreviousblockdropped,
        { "Flag Previous Block Dropped", "gvsp.flag.previousblockdropped",
        FT_UINT16, BASE_HEX, NULL, 0x0002,
        NULL, HFILL
        }},

        {& hf_gvsp_flagpacketresend,
        { "Flag Packet Resend", "gvsp.flag.packetresend",
        FT_UINT16, BASE_HEX, NULL, 0x0001,
        NULL, HFILL
        }},

        {& hf_gvsp_format,
        { "Format", "gvsp.format",
        FT_UINT8, BASE_HEX, VALS(formatnames), 0,
        NULL, HFILL
        }},

        {& hf_gvsp_packetid24,
        { "Packet ID (24 bits)", "gvsp.packetid24",
        FT_UINT32, BASE_DEC, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_blockid64,
        { "Block ID (64 bits v2.0)", "gvsp.blockid64",
        FT_UINT64, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_packetid32,
        { "Packet ID (32 bits v2.0)", "gvsp.packetid32",
        FT_UINT32, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_payloadtype,
        { "Payload Type", "gvsp.payloadtype",
        FT_UINT16, BASE_HEX|BASE_EXT_STRING, &payloadtypenames_ext, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_payloaddata,
        { "Payload Data", "gvsp.payloaddata",
        FT_BYTES, BASE_NONE, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_timestamp,
        { "Timestamp", "gvsp.timestamp",
        FT_UINT64, BASE_HEX, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_pixelformat,
        { "Pixel Format", "gvsp.pixel",
        FT_UINT32, BASE_HEX|BASE_EXT_STRING, &pixeltypenames_ext, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_sizex,
        { "Size X", "gvsp.sizex",
        FT_UINT32, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_sizey,
        { "Size Y", "gvsp.sizey",
        FT_UINT32, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_offsetx,
        { "Offset X", "gvsp.offsetx",
        FT_UINT32, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_offsety,
        { "Offset Y", "gvsp.offsety",
        FT_UINT32, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_paddingx,
        { "Padding X", "gvsp.paddingx",
        FT_UINT16, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_paddingy,
        { "Padding Y", "gvsp.paddingy",
        FT_UINT16, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_payloaddatasize,
        { "Payload Data Size", "gvsp.payloaddatasize",
        FT_UINT64, BASE_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_pixelcolor,
        { "Monochrome or Color", "gvsp.pixel.color",
        FT_UINT32, BASE_HEX, VALS(colornames), 0xFF000000,
        NULL, HFILL
        }},

        {& hf_gvsp_pixeloccupy,
        { "Occupy Bits", "gvsp.pixel.occupy",
        FT_UINT32, BASE_DEC, NULL, 0x00FF0000,
        NULL, HFILL
        }},

        {& hf_gvsp_pixelid,
        { "ID", "gvsp.pixel.id",
        FT_UINT32, BASE_HEX, NULL, 0x0000FFFF,
        NULL, HFILL
        }},

        {& hf_gvsp_filename,
        { "ID", "gvsp.filename",
        FT_STRINGZ, BASE_NONE, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_payloadlength,
        { "Payload Length", "gvsp.payloadlength",
        FT_UINT32, BASE_DEC, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_fieldinfo,
        { "Field Info", "gvsp.fieldinfo",
        FT_UINT8, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_fieldid,
        { "Field ID", "gvsp.fieldid",
        FT_UINT8, BASE_HEX, NULL, 0xF0,
        NULL, HFILL
        }},

        {& hf_gvsp_fieldcount,
        { "Field Count", "gvsp.fieldcount",
        FT_UINT8, BASE_HEX, NULL, 0x0F,
        NULL, HFILL
        }},

        {& hf_gvsp_genericflags,
        { "Generic Flag", "gvsp.genericflag",
        FT_UINT8, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_timestamptickfrequency ,
        { "Timestamp Tick Frequency", "gvsp.timestamptickfrequency",
        FT_UINT64, BASE_HEX, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_dataformat,
        { "Data Format", "gvsp.dataformat",
        FT_UINT32, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_packetizationmode,
        { "packetization_mode", "gvsp.packetizationmode",
        FT_UINT8, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_packetsize,
        { "packet_size", "gvsp.packetsize",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_profileidc,
        { "profile_idc", "gvsp.profileidc",
        FT_UINT8, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_cs,
        { "cs", "gvsp.cs",
        FT_UINT8, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_cs0,
        { "cs0", "gvsp.cs0",
        FT_UINT8, BASE_HEX, NULL, 0x80,
        NULL, HFILL
        }},

        {& hf_gvsp_cs1,
        { "cs1", "gvsp.cs1",
        FT_UINT8, BASE_HEX, NULL, 0x40,
        NULL, HFILL
        }},

        {& hf_gvsp_cs2,
        { "cs2", "gvsp.cs2",
        FT_UINT8, BASE_HEX, NULL, 0x20,
        NULL, HFILL
        }},

        {& hf_gvsp_cs3,
        { "cs3", "gvsp.cs3",
        FT_UINT8, BASE_HEX, NULL, 0x10,
        NULL, HFILL
        }},

        {& hf_gvsp_levelidc,
        { "level_idc", "gvsp.levelidc",
        FT_UINT8, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_sropinterleavingdepth,
        { "srop_interlaving_depth", "gvsp.sropinterleavingdepth",
        FT_UINT16, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_sropmaxdondiff,
        { "srop_max_don_diff", "gvsp.sropmaxdondiff",
        FT_UINT16, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_sropdeintbufreq,
        { "srop_deint_buf_req", "gvsp.sropdeintbufreq",
        FT_UINT32, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_sropinitbuftime,
        { "srop_init_buf_time", "gvsp.sropinitbuftime",
        FT_UINT32, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_zoneinfo,
        { "Zone Info", "gvsp.zoneinfo",
        FT_UINT8, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_zoneid,
        { "Zone ID", "gvsp.zoneid",
        FT_UINT8, BASE_HEX, NULL, 0x3E,
        NULL, HFILL
        }},

        {& hf_gvsp_endofzone,
        { "End of Zone", "gvsp.endofzone",
        FT_UINT8, BASE_HEX, NULL, 0x01,
        NULL, HFILL
        }},

        {& hf_gvsp_addressoffsethigh,
        { "Address Offset High", "gvsp.addressoffsethigh",
        FT_UINT16, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_addressoffsetlow,
        { "Address Offset Low", "gvsp.addressoffsetlow",
        FT_UINT32, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone_direction,
        { "Zone Directions Mask", "gvsp.zonedirection",
        FT_UINT32, BASE_HEX, NULL, 0,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone0_direction,
        { "Zone 0 Direction", "gvsp.zone0direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x80000000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone1_direction,
        { "Zone 1 Direction", "gvsp.zone1direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x40000000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone2_direction,
        { "Zone 2 Direction", "gvsp.zone2direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x20000000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone3_direction,
        { "Zone 3 Direction", "gvsp.zone3direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x10000000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone4_direction,
        { "Zone 4 Direction", "gvsp.zone4direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x08000000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone5_direction,
        { "Zone 5 Direction", "gvsp.zone5direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x04000000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone6_direction,
        { "Zone 6 Direction", "gvsp.zone6direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x02000000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone7_direction,
        { "Zone 7 Direction", "gvsp.zone7direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x01000000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone8_direction,
        { "Zone 8 Direction", "gvsp.zone8direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00800000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone9_direction,
        { "Zone 9 Direction", "gvsp.zone9direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00400000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone10_direction,
        { "Zone 10 Direction", "gvsp.zone10direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00200000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone11_direction,
        { "Zone 11 Direction", "gvsp.zone1direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00100000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone12_direction,
        { "Zone 12 Direction", "gvsp.zone12direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00080000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone13_direction,
        { "Zone 13 Direction", "gvsp.zone13direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00040000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone14_direction,
        { "Zone 14 Direction", "gvsp.zone14direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00020000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone15_direction,
        { "Zone 15 Direction", "gvsp.zone15direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00010000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone16_direction,
        { "Zone 16 Direction", "gvsp.zone16direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00008000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone17_direction,
        { "Zone 17 Direction", "gvsp.zone17direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00004000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone18_direction,
        { "Zone 18 Direction", "gvsp.zone18direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00002000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone19_direction,
        { "Zone 19 Direction", "gvsp.zone19direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00001000,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone20_direction,
        { "Zone 20 Direction", "gvsp.zone20direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000800,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone21_direction,
        { "Zone 21 Direction", "gvsp.zone21direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000400,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone22_direction,
        { "Zone 22 Direction", "gvsp.zone22direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000200,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone23_direction,
        { "Zone 23 Direction", "gvsp.zone23direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000100,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone24_direction,
        { "Zone 24 Direction", "gvsp.zone24direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000080,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone25_direction,
        { "Zone 25 Direction", "gvsp.zone25direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000040,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone26_direction,
        { "Zone 26 Direction", "gvsp.zone26direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000020,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone27_direction,
        { "Zone 27 Direction", "gvsp.zone27direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000010,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone28_direction,
        { "Zone 28 Direction", "gvsp.zone28direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000008,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone29_direction,
        { "Zone 29 Direction", "gvsp.zone29direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000004,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone30_direction,
        { "Zone 30 Direction", "gvsp.zone30direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000002,
        NULL, HFILL
        }},

        {& hf_gvsp_sc_zone31_direction,
        { "Zone 31 Direction", "gvsp.zone31direction",
        FT_BOOLEAN, 32, TFS(&directionnames), 0x00000001,
        NULL, HFILL
        }},

        {& hf_gvsp_chunkdatapayloadlengthex,
        { "Chunk Data Payload Length", "gvsp.chunkdatapayloadlengthex",
        FT_UINT32, BASE_HEX_DEC, NULL, 0x0,
        NULL, HFILL
        }},

        {& hf_gvsp_chunklayoutidex,
        { "Chunk Layout ID", "gvsp.chunklayoutidex",
        FT_UINT32, BASE_HEX_DEC, NULL, 0x0,
        NULL, HFILL
        }},
    };

    static gint *ett[] = {
        &ett_gvsp,
        &ett_gvsp_flags,
        &ett_gvsp_header,
        &ett_gvsp_payload,
        &ett_gvsp_trailer,
        &ett_gvsp_pixelformat,
        &ett_gvsp_fieldinfo,
        &ett_gvsp_cs,
        &ett_gvsp_sc_zone_direction,
        &ett_gvsp_zoneinfo
    };

    proto_gvsp = proto_register_protocol("GigE Vision Streaming Protocol", "GVSP", "gvsp");

    register_dissector("gvsp", dissect_gvsp, proto_gvsp);

    proto_register_field_array(proto_gvsp, hfgvsp, array_length(hfgvsp));
    proto_register_subtree_array(ett, array_length(ett));

    gvsp_module = prefs_register_protocol(proto_gvsp, proto_reg_handoff_gvsp);
    prefs_register_obsolete_preference(gvsp_module, "enable_heuristic");
}

void proto_reg_handoff_gvsp(void)
{
    static gboolean initialized = FALSE;

    if (!initialized) {
        gvsp_handle = create_dissector_handle((new_dissector_t)dissect_gvsp, proto_gvsp);
        dissector_add_for_decode_as("udp.port", gvsp_handle);
        heur_dissector_add("udp", dissect_gvsp_heur, "GigE Vision over UDP", "gvsp_udp", proto_gvsp, HEURISTIC_ENABLE);
        initialized = TRUE;
    }
}

/*
 * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 *
 * Local variables:
 * c-basic-offset: 4
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 *
 * vi: set shiftwidth=4 tabstop=8 expandtab:
 * :indentSize=4:tabSize=8:noTabs=true:
 */