/* GStreamer
* Copyright (C) 2008-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <string.h>
#include "mxftypes.h"
GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
#define GST_CAT_DEFAULT mxf_debug
gboolean
mxf_is_mxf_packet (const MXFUL * ul)
{
return mxf_ul_is_subclass (MXF_UL (SMPTE), ul);
}
/* SMPTE 377M 6.1: Check if this is a valid partition pack */
gboolean
mxf_is_partition_pack (const MXFUL * ul)
{
if (mxf_ul_is_subclass (MXF_UL (PARTITION_PACK), ul) &&
ul->u[13] >= 0x02 && ul->u[13] <= 0x04 &&
ul->u[14] < 0x05 && ul->u[15] == 0x00)
return TRUE;
return FALSE;
}
/* SMPTE 377M 6.2: header partition pack has byte 14 == 0x02 */
gboolean
mxf_is_header_partition_pack (const MXFUL * ul)
{
if (mxf_is_partition_pack (ul) && ul->u[13] == 0x02)
return TRUE;
return FALSE;
}
/* SMPTE 377M 6.3: body partition pack has byte 14 == 0x03 */
gboolean
mxf_is_body_partition_pack (const MXFUL * ul)
{
if (mxf_is_partition_pack (ul) && ul->u[13] == 0x03)
return TRUE;
return FALSE;
}
/* SMPTE 377M 6.4: footer partition pack has byte 14 == 0x04 */
gboolean
mxf_is_footer_partition_pack (const MXFUL * ul)
{
if (mxf_is_partition_pack (ul) && ul->u[13] == 0x04)
return TRUE;
return FALSE;
}
gboolean
mxf_is_fill (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (FILL), ul));
}
gboolean
mxf_is_primer_pack (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (PRIMER_PACK), ul));
}
gboolean
mxf_is_metadata (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (METADATA), ul));
}
/* SMPTE 377M 8.7.3 */
gboolean
mxf_is_descriptive_metadata (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (DESCRIPTIVE_METADATA), ul));
}
gboolean
mxf_is_random_index_pack (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (RANDOM_INDEX_PACK), ul));
}
gboolean
mxf_is_index_table_segment (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (INDEX_TABLE_SEGMENT), ul));
}
/* SMPTE 379M 6.2.1 */
gboolean
mxf_is_generic_container_system_item (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (GENERIC_CONTAINER_SYSTEM_ITEM), ul) &&
(ul->u[12] == 0x04 || ul->u[12] == 0x14));
}
/* SMPTE 379M 7.1 */
gboolean
mxf_is_generic_container_essence_element (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (GENERIC_CONTAINER_ESSENCE_ELEMENT), ul)
&& (ul->u[12] == 0x05 || ul->u[12] == 0x06
|| ul->u[12] == 0x07 || ul->u[12] == 0x15
|| ul->u[12] == 0x16 || ul->u[12] == 0x17 || ul->u[12] == 0x18));
}
/* SMPTE 379M 8 */
gboolean
mxf_is_generic_container_essence_container_label (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL
(GENERIC_CONTAINER_ESSENCE_CONTAINER_LABEL), ul) && (ul->u[12] == 0x01
|| ul->u[12] == 0x02));
}
/* Essence container label found in files generated by Avid */
gboolean
mxf_is_avid_essence_container_label (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (AVID_ESSENCE_CONTAINER_ESSENCE_LABEL),
ul));
}
/* Essence element key found in files generated by Avid */
gboolean
mxf_is_avid_essence_container_essence_element (const MXFUL * ul)
{
return (mxf_ul_is_subclass (MXF_UL (AVID_ESSENCE_CONTAINER_ESSENCE_ELEMENT),
ul));
}
guint
mxf_ber_encode_size (guint size, guint8 ber[9])
{
guint8 slen, i;
guint8 tmp[8];
memset (ber, 0, 9);
if (size <= 127) {
ber[0] = size;
return 1;
} else if (size > G_MAXUINT) {
return 0;
}
slen = 0;
while (size > 0) {
tmp[slen] = size & 0xff;
size >>= 8;
slen++;
}
ber[0] = 0x80 | slen;
for (i = 0; i < slen; i++) {
ber[i + 1] = tmp[slen - i - 1];
}
return slen + 1;
}
GstBuffer *
mxf_fill_to_buffer (guint size)
{
GstBuffer *ret;
guint slen;
guint8 ber[9];
slen = mxf_ber_encode_size (size, ber);
ret = gst_buffer_new_and_alloc (16 + slen + size);
memcpy (GST_BUFFER_DATA (ret), MXF_UL (FILL), 16);
memcpy (GST_BUFFER_DATA (ret) + 16, &ber, slen);
memset (GST_BUFFER_DATA (ret) + slen, 0, size);
return ret;
}
void
mxf_uuid_init (MXFUUID * uuid, GHashTable * hashtable)
{
guint i;
do {
for (i = 0; i < 4; i++)
GST_WRITE_UINT32_BE (&uuid->u[i * 4], g_random_int ());
} while (hashtable && (mxf_uuid_is_zero (uuid) ||
g_hash_table_lookup_extended (hashtable, uuid, NULL, NULL)));
}
gboolean
mxf_uuid_is_equal (const MXFUUID * a, const MXFUUID * b)
{
g_return_val_if_fail (a != NULL, FALSE);
g_return_val_if_fail (b != NULL, FALSE);
return (memcmp (a, b, 16) == 0);
}
gboolean
mxf_uuid_is_zero (const MXFUUID * a)
{
static const guint8 zero[16] = { 0x00, };
g_return_val_if_fail (a != NULL, FALSE);
return (memcmp (a, zero, 16) == 0);
}
guint
mxf_uuid_hash (const MXFUUID * uuid)
{
guint32 ret = 0;
guint i;
g_return_val_if_fail (uuid != NULL, 0);
for (i = 0; i < 4; i++)
ret ^= (uuid->u[i * 4 + 0] << 24) |
(uuid->u[i * 4 + 1] << 16) |
(uuid->u[i * 4 + 2] << 8) | (uuid->u[i * 4 + 3] << 0);
return ret;
}
gchar *
mxf_uuid_to_string (const MXFUUID * uuid, gchar str[48])
{
gchar *ret = str;
g_return_val_if_fail (uuid != NULL, NULL);
if (ret == NULL)
ret = g_malloc (48);
g_snprintf (ret, 48,
"%02x.%02x.%02x.%02x."
"%02x.%02x.%02x.%02x."
"%02x.%02x.%02x.%02x."
"%02x.%02x.%02x.%02x",
uuid->u[0], uuid->u[1], uuid->u[2], uuid->u[3],
uuid->u[4], uuid->u[5], uuid->u[6], uuid->u[7],
uuid->u[8], uuid->u[9], uuid->u[10], uuid->u[11],
uuid->u[12], uuid->u[13], uuid->u[14], uuid->u[15]);
return ret;
}
MXFUUID *
mxf_uuid_from_string (const gchar * str, MXFUUID * uuid)
{
MXFUUID *ret = uuid;
gint len;
guint i, j;
g_return_val_if_fail (str != NULL, NULL);
len = strlen (str);
if (len != 47) {
GST_ERROR ("Invalid UUID string length %d, should be 47", len);
return NULL;
}
if (ret == NULL)
ret = g_new0 (MXFUUID, 1);
memset (ret, 0, 16);
for (i = 0, j = 0; i < 16; i++) {
if (!g_ascii_isxdigit (str[j]) ||
!g_ascii_isxdigit (str[j + 1]) ||
(str[j + 2] != '.' && str[j + 2] != '\0')) {
GST_ERROR ("Invalid UL string '%s'", str);
if (uuid == NULL)
g_free (ret);
return NULL;
}
ret->u[i] = (g_ascii_xdigit_value (str[j]) << 4) |
(g_ascii_xdigit_value (str[j + 1]));
j += 3;
}
return ret;
}
gboolean
mxf_uuid_array_parse (MXFUUID ** array, guint32 * count, const guint8 * data,
guint size)
{
guint32 element_count, element_size;
guint i;
g_return_val_if_fail (array != NULL, FALSE);
g_return_val_if_fail (count != NULL, FALSE);
g_return_val_if_fail (data != NULL, FALSE);
if (size < 8)
return FALSE;
element_count = GST_READ_UINT32_BE (data);
data += 4;
size -= 4;
if (element_count == 0) {
*array = NULL;
*count = 0;
return TRUE;
}
element_size = GST_READ_UINT32_BE (data);
data += 4;
size -= 4;
if (element_size != 16) {
*array = NULL;
*count = 0;
return FALSE;
}
if (16 * element_count < size) {
*array = NULL;
*count = 0;
return FALSE;
}
*array = g_new (MXFUUID, element_count);
*count = element_count;
for (i = 0; i < element_count; i++) {
memcpy (&((*array)[i]), data, 16);
data += 16;
}
return TRUE;
}
gboolean
mxf_umid_is_equal (const MXFUMID * a, const MXFUMID * b)
{
return (memcmp (a, b, 32) == 0);
}
gboolean
mxf_umid_is_zero (const MXFUMID * umid)
{
static const MXFUMID zero = { {0,} };
return (memcmp (umid, &zero, 32) == 0);
}
gchar *
mxf_umid_to_string (const MXFUMID * umid, gchar str[96])
{
g_return_val_if_fail (umid != NULL, NULL);
g_return_val_if_fail (str != NULL, NULL);
g_snprintf (str, 96,
"%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x."
"%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x.%02x",
umid->u[0], umid->u[1], umid->u[2], umid->u[3], umid->u[4], umid->u[5],
umid->u[6], umid->u[7], umid->u[8], umid->u[9], umid->u[10], umid->u[11],
umid->u[12], umid->u[13], umid->u[14], umid->u[15],
umid->u[16],
umid->u[17],
umid->u[18],
umid->u[19],
umid->u[20],
umid->u[21],
umid->u[22],
umid->u[23],
umid->u[24],
umid->u[25],
umid->u[26], umid->u[27], umid->u[28], umid->u[29], umid->u[30],
umid->u[31]
);
return str;
}
MXFUMID *
mxf_umid_from_string (const gchar * str, MXFUMID * umid)
{
gint len;
guint i, j;
g_return_val_if_fail (str != NULL, NULL);
len = strlen (str);
memset (umid, 0, 32);
if (len != 95) {
GST_ERROR ("Invalid UMID string length %d", len);
return NULL;
}
for (i = 0, j = 0; i < 32; i++) {
if (!g_ascii_isxdigit (str[j]) ||
!g_ascii_isxdigit (str[j + 1]) ||
(str[j + 2] != '.' && str[j + 2] != '\0')) {
GST_ERROR ("Invalid UMID string '%s'", str);
return NULL;
}
umid->u[i] =
(g_ascii_xdigit_value (str[j]) << 4) | (g_ascii_xdigit_value (str[j +
1]));
j += 3;
}
return umid;
}
void
mxf_umid_init (MXFUMID * umid)
{
guint i;
guint32 tmp;
/* SMPTE S330M 5.1.1:
* UMID Identifier
*/
umid->u[0] = 0x06;
umid->u[1] = 0x0a;
umid->u[2] = 0x2b;
umid->u[3] = 0x34;
umid->u[4] = 0x01;
umid->u[5] = 0x01;
umid->u[6] = 0x01;
umid->u[7] = 0x05; /* version, see RP210 */
umid->u[8] = 0x01;
umid->u[9] = 0x01;
umid->u[10] = 0x0d; /* mixed group of components in a single container */
/* - UUID/UL method for material number
* - 24 bit PRG for instance number
*/
umid->u[11] = 0x20 | 0x02;
/* Length of remaining data */
umid->u[12] = 0x13;
/* Instance number */
tmp = g_random_int ();
umid->u[13] = (tmp >> 24) & 0xff;
umid->u[14] = (tmp >> 16) & 0xff;
umid->u[15] = (tmp >> 8) & 0xff;
/* Material number: ISO UUID Version 4 */
for (i = 16; i < 32; i += 4)
GST_WRITE_UINT32_BE (&umid->u[i], g_random_int ());
umid->u[16 + 6] &= 0x0f;
umid->u[16 + 6] |= 0x40;
umid->u[16 + 8] &= 0x3f;
umid->u[16 + 8] |= 0x80;
}
gboolean
mxf_timestamp_parse (MXFTimestamp * timestamp, const guint8 * data, guint size)
{
g_return_val_if_fail (data != NULL, FALSE);
g_return_val_if_fail (timestamp != NULL, FALSE);
memset (timestamp, 0, sizeof (MXFTimestamp));
if (size < 8)
return FALSE;
timestamp->year = GST_READ_UINT16_BE (data);
timestamp->month = GST_READ_UINT8 (data + 2);
timestamp->day = GST_READ_UINT8 (data + 3);
timestamp->hour = GST_READ_UINT8 (data + 4);
timestamp->minute = GST_READ_UINT8 (data + 5);
timestamp->second = GST_READ_UINT8 (data + 6);
timestamp->msecond = (GST_READ_UINT8 (data + 7) * 1000) / 256;
return TRUE;
}
/* SMPTE 377M 3.3: A value of 0 for every field means unknown timestamp */
gboolean
mxf_timestamp_is_unknown (const MXFTimestamp * a)
{
static const MXFTimestamp unknown = { 0, 0, 0, 0, 0, 0, 0 };
return (memcmp (a, &unknown, sizeof (MXFTimestamp)) == 0);
}
gint
mxf_timestamp_compare (const MXFTimestamp * a, const MXFTimestamp * b)
{
gint diff;
if ((diff = a->year - b->year) != 0)
return diff;
else if ((diff = a->month - b->month) != 0)
return diff;
else if ((diff = a->day - b->day) != 0)
return diff;
else if ((diff = a->hour - b->hour) != 0)
return diff;
else if ((diff = a->minute - b->minute) != 0)
return diff;
else if ((diff = a->second - b->second) != 0)
return diff;
else if ((diff = a->msecond - b->msecond) != 0)
return diff;
else
return 0;
}
gchar *
mxf_timestamp_to_string (const MXFTimestamp * t, gchar str[32])
{
g_snprintf (str, 32,
"%04d-%02u-%02u %02u:%02u:%02u.%03u", t->year, t->month,
t->day, t->hour, t->minute, t->second, t->msecond);
return str;
}
void
mxf_timestamp_set_now (MXFTimestamp * timestamp)
{
GTimeVal tv;
time_t t;
struct tm *tm;
#ifdef HAVE_GMTIME_R
struct tm tm_;
#endif
g_get_current_time (&tv);
t = (time_t) tv.tv_sec;
#ifdef HAVE_GMTIME_R
tm = gmtime_r (&t, &tm_);
#else
tm = gmtime (&t);
#endif
timestamp->year = tm->tm_year + 1900;
timestamp->month = tm->tm_mon;
timestamp->day = tm->tm_mday;
timestamp->hour = tm->tm_hour;
timestamp->minute = tm->tm_min;
timestamp->second = tm->tm_sec;
timestamp->msecond = tv.tv_usec / 1000;
}
void
mxf_timestamp_write (const MXFTimestamp * timestamp, guint8 * data)
{
GST_WRITE_UINT16_BE (data, timestamp->year);
GST_WRITE_UINT8 (data + 2, timestamp->month);
GST_WRITE_UINT8 (data + 3, timestamp->day);
GST_WRITE_UINT8 (data + 4, timestamp->hour);
GST_WRITE_UINT8 (data + 5, timestamp->minute);
GST_WRITE_UINT8 (data + 6, timestamp->second);
GST_WRITE_UINT8 (data + 7, (timestamp->msecond * 256) / 1000);
}
gboolean
mxf_fraction_parse (MXFFraction * fraction, const guint8 * data, guint size)
{
g_return_val_if_fail (fraction != NULL, FALSE);
g_return_val_if_fail (data != NULL, FALSE);
memset (fraction, 0, sizeof (MXFFraction));
if (size < 8)
return FALSE;
fraction->n = GST_READ_UINT32_BE (data);
fraction->d = GST_READ_UINT32_BE (data + 4);
return TRUE;
}
gdouble
mxf_fraction_to_double (const MXFFraction * fraction)
{
return ((gdouble) fraction->n) / ((gdouble) fraction->d);
}
gchar *
mxf_utf16_to_utf8 (const guint8 * data, guint size)
{
gchar *ret;
GError *error = NULL;
ret =
g_convert ((const gchar *) data, size, "UTF-8", "UTF-16BE", NULL, NULL,
&error);
if (ret == NULL) {
GST_WARNING ("UTF-16-BE to UTF-8 conversion failed: %s", error->message);
g_error_free (error);
return NULL;
}
return ret;
}
guint8 *
mxf_utf8_to_utf16 (const gchar * str, guint16 * size)
{
guint8 *ret;
GError *error = NULL;
gsize s;
g_return_val_if_fail (size != NULL, NULL);
if (str == NULL) {
*size = 0;
return NULL;
}
ret = (guint8 *)
g_convert_with_fallback (str, -1, "UTF-16BE", "UTF-8", "*", NULL, &s,
&error);
if (ret == NULL) {
GST_WARNING ("UTF-16-BE to UTF-8 conversion failed: %s", error->message);
g_error_free (error);
*size = 0;
return NULL;
}
*size = s;
return (guint8 *) ret;
}
gboolean
mxf_product_version_parse (MXFProductVersion * product_version,
const guint8 * data, guint size)
{
g_return_val_if_fail (product_version != NULL, FALSE);
g_return_val_if_fail (data != NULL, FALSE);
memset (product_version, 0, sizeof (MXFProductVersion));
if (size < 9)
return FALSE;
product_version->major = GST_READ_UINT16_BE (data);
product_version->minor = GST_READ_UINT16_BE (data + 2);
product_version->patch = GST_READ_UINT16_BE (data + 4);
product_version->build = GST_READ_UINT16_BE (data + 6);
/* Avid writes a 9 byte product version */
if (size == 9)
product_version->release = GST_READ_UINT8 (data + 8);
else
product_version->release = GST_READ_UINT16_BE (data + 8);
return TRUE;
}
gboolean
mxf_product_version_is_valid (const MXFProductVersion * version)
{
static const guint8 null[sizeof (MXFProductVersion)] = { 0, };
return (memcmp (version, &null, sizeof (MXFProductVersion)) == 0);
}
void
mxf_product_version_write (const MXFProductVersion * version, guint8 * data)
{
GST_WRITE_UINT16_BE (data, version->major);
GST_WRITE_UINT16_BE (data + 2, version->minor);
GST_WRITE_UINT16_BE (data + 4, version->patch);
GST_WRITE_UINT16_BE (data + 6, version->build);
GST_WRITE_UINT16_BE (data + 8, version->release);
}
void
mxf_op_set_atom (MXFUL * ul, gboolean single_sourceclip,
gboolean single_essence_track)
{
memcpy (&ul->u, MXF_UL (OPERATIONAL_PATTERN_IDENTIFICATION), 12);
ul->u[12] = 0x10;
ul->u[13] = 0;
if (!single_sourceclip)
ul->u[13] |= 0x80;
if (!single_essence_track)
ul->u[13] |= 0x40;
ul->u[14] = 0;
ul->u[15] = 0;
}
void
mxf_op_set_generalized (MXFUL * ul, MXFOperationalPattern pattern,
gboolean internal_essence, gboolean streamable, gboolean single_track)
{
g_return_if_fail (pattern >= MXF_OP_1a);
memcpy (&ul->u, MXF_UL (OPERATIONAL_PATTERN_IDENTIFICATION), 12);
if (pattern == MXF_OP_1a || pattern == MXF_OP_1b || pattern == MXF_OP_1c)
ul->u[12] = 0x01;
else if (pattern == MXF_OP_2a || pattern == MXF_OP_2b || pattern == MXF_OP_2c)
ul->u[12] = 0x02;
else if (pattern == MXF_OP_3a || pattern == MXF_OP_3b || pattern == MXF_OP_3c)
ul->u[12] = 0x03;
if (pattern == MXF_OP_1a || pattern == MXF_OP_2a || pattern == MXF_OP_3a)
ul->u[13] = 0x01;
else if (pattern == MXF_OP_1b || pattern == MXF_OP_2b || pattern == MXF_OP_3b)
ul->u[13] = 0x02;
else if (pattern == MXF_OP_1c || pattern == MXF_OP_2c || pattern == MXF_OP_3c)
ul->u[13] = 0x02;
ul->u[14] = 0x80;
if (!internal_essence)
ul->u[14] |= 0x40;
if (!streamable)
ul->u[14] |= 0x20;
if (!single_track)
ul->u[14] |= 0x10;
ul->u[15] = 0;
}
/* SMPTE 377M 6.1, Table 2 */
gboolean
mxf_partition_pack_parse (const MXFUL * ul, MXFPartitionPack * pack,
const guint8 * data, guint size)
{
#ifndef GST_DISABLE_GST_DEBUG
guint i;
gchar str[48];
#endif
g_return_val_if_fail (data != NULL, FALSE);
g_return_val_if_fail (size >= 84, FALSE);
memset (pack, 0, sizeof (MXFPartitionPack));
GST_DEBUG ("Parsing partition pack:");
if (ul->u[13] == 0x02)
pack->type = MXF_PARTITION_PACK_HEADER;
else if (ul->u[13] == 0x03)
pack->type = MXF_PARTITION_PACK_BODY;
else if (ul->u[13] == 0x04)
pack->type = MXF_PARTITION_PACK_FOOTER;
GST_DEBUG (" type = %s",
(pack->type == MXF_PARTITION_PACK_HEADER) ? "header" : (pack->type ==
MXF_PARTITION_PACK_BODY) ? "body" : "footer");
pack->closed = (ul->u[14] == 0x02 || ul->u[14] == 0x04);
pack->complete = (ul->u[14] == 0x03 || ul->u[14] == 0x04);
GST_DEBUG (" closed = %s, complete = %s", (pack->closed) ? "yes" : "no",
(pack->complete) ? "yes" : "no");
pack->major_version = GST_READ_UINT16_BE (data);
if (pack->major_version != 1)
goto error;
data += 2;
size -= 2;
pack->minor_version = GST_READ_UINT16_BE (data);
data += 2;
size -= 2;
GST_DEBUG (" MXF version = %u.%u", pack->major_version, pack->minor_version);
pack->kag_size = GST_READ_UINT32_BE (data);
data += 4;
size -= 4;
GST_DEBUG (" KAG size = %u", pack->kag_size);
pack->this_partition = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
GST_DEBUG (" this partition offset = %" G_GUINT64_FORMAT,
pack->this_partition);
pack->prev_partition = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
GST_DEBUG (" previous partition offset = %" G_GUINT64_FORMAT,
pack->prev_partition);
pack->footer_partition = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
GST_DEBUG (" footer partition offset = %" G_GUINT64_FORMAT,
pack->footer_partition);
pack->header_byte_count = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
GST_DEBUG (" header byte count = %" G_GUINT64_FORMAT,
pack->header_byte_count);
pack->index_byte_count = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
pack->index_sid = GST_READ_UINT32_BE (data);
data += 4;
size -= 4;
GST_DEBUG (" index sid = %u, size = %" G_GUINT64_FORMAT, pack->index_sid,
pack->index_byte_count);
pack->body_offset = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
pack->body_sid = GST_READ_UINT32_BE (data);
data += 4;
size -= 4;
GST_DEBUG (" body sid = %u, offset = %" G_GUINT64_FORMAT, pack->body_sid,
pack->body_offset);
memcpy (&pack->operational_pattern, data, 16);
data += 16;
size -= 16;
GST_DEBUG (" operational pattern = %s",
mxf_ul_to_string (&pack->operational_pattern, str));
if (!mxf_ul_array_parse (&pack->essence_containers,
&pack->n_essence_containers, data, size))
goto error;
#ifndef GST_DISABLE_GST_DEBUG
GST_DEBUG (" number of essence containers = %u", pack->n_essence_containers);
if (pack->n_essence_containers) {
for (i = 0; i < pack->n_essence_containers; i++) {
GST_DEBUG (" essence container %u = %s", i,
mxf_ul_to_string (&pack->essence_containers[i], str));
}
}
#endif
return TRUE;
error:
GST_ERROR ("Invalid partition pack");
mxf_partition_pack_reset (pack);
return FALSE;
}
void
mxf_partition_pack_reset (MXFPartitionPack * pack)
{
g_return_if_fail (pack != NULL);
g_free (pack->essence_containers);
memset (pack, 0, sizeof (MXFPartitionPack));
}
GstBuffer *
mxf_partition_pack_to_buffer (const MXFPartitionPack * pack)
{
guint slen;
guint8 ber[9];
GstBuffer *ret;
guint8 *data;
guint i;
guint size =
8 + 16 * pack->n_essence_containers + 16 + 4 + 8 + 4 + 8 + 8 + 8 + 8 + 8 +
4 + 2 + 2;
slen = mxf_ber_encode_size (size, ber);
ret = gst_buffer_new_and_alloc (16 + slen + size);
memcpy (GST_BUFFER_DATA (ret), MXF_UL (PARTITION_PACK), 13);
if (pack->type == MXF_PARTITION_PACK_HEADER)
GST_BUFFER_DATA (ret)[13] = 0x02;
else if (pack->type == MXF_PARTITION_PACK_BODY)
GST_BUFFER_DATA (ret)[13] = 0x03;
else if (pack->type == MXF_PARTITION_PACK_FOOTER)
GST_BUFFER_DATA (ret)[13] = 0x04;
GST_BUFFER_DATA (ret)[14] = 0;
if (pack->complete)
GST_BUFFER_DATA (ret)[14] |= 0x02;
if (pack->closed)
GST_BUFFER_DATA (ret)[14] |= 0x01;
GST_BUFFER_DATA (ret)[14] += 1;
GST_BUFFER_DATA (ret)[15] = 0;
memcpy (GST_BUFFER_DATA (ret) + 16, &ber, slen);
data = GST_BUFFER_DATA (ret) + 16 + slen;
GST_WRITE_UINT16_BE (data, pack->major_version);
GST_WRITE_UINT16_BE (data + 2, pack->minor_version);
data += 4;
GST_WRITE_UINT32_BE (data, pack->kag_size);
data += 4;
GST_WRITE_UINT64_BE (data, pack->this_partition);
data += 8;
GST_WRITE_UINT64_BE (data, pack->prev_partition);
data += 8;
GST_WRITE_UINT64_BE (data, pack->footer_partition);
data += 8;
GST_WRITE_UINT64_BE (data, pack->header_byte_count);
data += 8;
GST_WRITE_UINT64_BE (data, pack->index_byte_count);
data += 8;
GST_WRITE_UINT32_BE (data, pack->index_sid);
data += 4;
GST_WRITE_UINT64_BE (data, pack->body_offset);
data += 8;
GST_WRITE_UINT32_BE (data, pack->body_sid);
data += 4;
memcpy (data, &pack->operational_pattern, 16);
data += 16;
GST_WRITE_UINT32_BE (data, pack->n_essence_containers);
GST_WRITE_UINT32_BE (data + 4, 16);
data += 8;
for (i = 0; i < pack->n_essence_containers; i++)
memcpy (data + 16 * i, &pack->essence_containers[i], 16);
return ret;
}
/* SMPTE 377M 11.1 */
gboolean
mxf_random_index_pack_parse (const MXFUL * ul, const guint8 * data, guint size,
GArray ** array)
{
guint len, i;
MXFRandomIndexPackEntry entry;
g_return_val_if_fail (data != NULL, FALSE);
g_return_val_if_fail (array != NULL, FALSE);
if (size < 4)
return FALSE;
if ((size - 4) % 12 != 0)
return FALSE;
GST_DEBUG ("Parsing random index pack:");
len = (size - 4) / 12;
GST_DEBUG (" number of entries = %u", len);
*array =
g_array_sized_new (FALSE, FALSE, sizeof (MXFRandomIndexPackEntry), len);
for (i = 0; i < len; i++) {
entry.body_sid = GST_READ_UINT32_BE (data);
entry.offset = GST_READ_UINT64_BE (data + 4);
data += 12;
GST_DEBUG (" entry %u = body sid %u at offset %" G_GUINT64_FORMAT, i,
entry.body_sid, entry.offset);
g_array_append_val (*array, entry);
}
return TRUE;
}
GstBuffer *
mxf_random_index_pack_to_buffer (const GArray * array)
{
MXFRandomIndexPackEntry *entry;
guint i;
GstBuffer *ret;
guint8 slen, ber[9];
guint size;
guint8 *data;
if (array->len == 0)
return NULL;
size = array->len * 12 + 4;
slen = mxf_ber_encode_size (size, ber);
ret = gst_buffer_new_and_alloc (16 + slen + size);
memcpy (GST_BUFFER_DATA (ret), MXF_UL (RANDOM_INDEX_PACK), 16);
memcpy (GST_BUFFER_DATA (ret) + 16, ber, slen);
data = GST_BUFFER_DATA (ret) + 16 + slen;
for (i = 0; i < array->len; i++) {
entry = &g_array_index (array, MXFRandomIndexPackEntry, i);
GST_WRITE_UINT32_BE (data, entry->body_sid);
GST_WRITE_UINT64_BE (data + 4, entry->offset);
data += 12;
}
GST_WRITE_UINT32_BE (data, GST_BUFFER_SIZE (ret));
return ret;
}
/* SMPTE 377M 10.2.3 */
gboolean
mxf_index_table_segment_parse (const MXFUL * ul,
MXFIndexTableSegment * segment, const MXFPrimerPack * primer,
const guint8 * data, guint size)
{
#ifndef GST_DISABLE_GST_DEBUG
gchar str[48];
#endif
guint16 tag, tag_size;
const guint8 *tag_data;
g_return_val_if_fail (ul != NULL, FALSE);
g_return_val_if_fail (data != NULL, FALSE);
g_return_val_if_fail (primer != NULL, FALSE);
memset (segment, 0, sizeof (MXFIndexTableSegment));
if (size < 70)
return FALSE;
GST_DEBUG ("Parsing index table segment:");
while (mxf_local_tag_parse (data, size, &tag, &tag_size, &tag_data)) {
if (tag_size == 0 || tag == 0x0000)
goto next;
switch (tag) {
case 0x3c0a:
if (tag_size != 16)
goto error;
memcpy (&segment->instance_id, tag_data, 16);
GST_DEBUG (" instance id = %s",
mxf_uuid_to_string (&segment->instance_id, str));
break;
case 0x3f0b:
if (!mxf_fraction_parse (&segment->index_edit_rate, tag_data, tag_size))
goto error;
GST_DEBUG (" index edit rate = %d/%d", segment->index_edit_rate.n,
segment->index_edit_rate.d);
break;
case 0x3f0c:
if (tag_size != 8)
goto error;
segment->index_start_position = GST_READ_UINT64_BE (tag_data);
GST_DEBUG (" index start position = %" G_GINT64_FORMAT,
segment->index_start_position);
break;
case 0x3f0d:
if (tag_size != 8)
goto error;
segment->index_duration = GST_READ_UINT64_BE (tag_data);
GST_DEBUG (" index duration = %" G_GINT64_FORMAT,
segment->index_duration);
break;
case 0x3f05:
if (tag_size != 4)
goto error;
segment->edit_unit_byte_count = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" edit unit byte count = %u",
segment->edit_unit_byte_count);
break;
case 0x3f06:
if (tag_size != 4)
goto error;
segment->index_sid = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" index sid = %u", segment->index_sid);
break;
case 0x3f07:
if (tag_size != 4)
goto error;
segment->body_sid = GST_READ_UINT32_BE (tag_data);
GST_DEBUG (" body sid = %u", segment->body_sid);
break;
case 0x3f08:
if (tag_size != 1)
goto error;
segment->slice_count = GST_READ_UINT8 (tag_data);
GST_DEBUG (" slice count = %u", segment->slice_count);
break;
case 0x3f0e:
if (tag_size != 1)
goto error;
segment->pos_table_count = GST_READ_UINT8 (tag_data);
GST_DEBUG (" pos table count = %u", segment->pos_table_count);
break;
case 0x3f09:{
guint len, i;
if (tag_size < 8)
goto error;
len = GST_READ_UINT32_BE (tag_data);
segment->n_delta_entries = len;
GST_DEBUG (" number of delta entries = %u", segment->n_delta_entries);
if (len == 0)
goto next;
tag_data += 4;
tag_size -= 4;
if (GST_READ_UINT32_BE (tag_data) != 6)
goto error;
tag_data += 4;
tag_size -= 4;
if (tag_size < len * 6)
goto error;
segment->delta_entries = g_new (MXFDeltaEntry, len);
for (i = 0; i < len; i++) {
GST_DEBUG (" delta entry %u:", i);
segment->delta_entries[i].pos_table_index = GST_READ_UINT8 (tag_data);
tag_data += 1;
tag_size -= 1;
GST_DEBUG (" pos table index = %d",
segment->delta_entries[i].pos_table_index);
segment->delta_entries[i].slice = GST_READ_UINT8 (tag_data);
tag_data += 1;
tag_size -= 1;
GST_DEBUG (" slice = %u", segment->delta_entries[i].slice);
segment->delta_entries[i].element_delta =
GST_READ_UINT32_BE (tag_data);
tag_data += 4;
tag_size -= 4;
GST_DEBUG (" element delta = %u",
segment->delta_entries[i].element_delta);
}
break;
}
case 0x3f0a:{
guint len, i, j;
if (tag_size < 8)
goto error;
len = GST_READ_UINT32_BE (tag_data);
segment->n_index_entries = len;
GST_DEBUG (" number of index entries = %u", segment->n_index_entries);
if (len == 0)
goto next;
tag_data += 4;
tag_size -= 4;
if (GST_READ_UINT32_BE (tag_data) !=
(11 + 4 * segment->slice_count + 8 * segment->pos_table_count))
goto error;
tag_data += 4;
tag_size -= 4;
if (tag_size < len * 11)
goto error;
segment->index_entries = g_new0 (MXFIndexEntry, len);
for (i = 0; i < len; i++) {
MXFIndexEntry *entry = &segment->index_entries[i];
GST_DEBUG (" index entry %u:", i);
entry->temporal_offset = GST_READ_UINT8 (tag_data);
tag_data += 1;
tag_size -= 1;
GST_DEBUG (" temporal offset = %d", entry->temporal_offset);
entry->key_frame_offset = GST_READ_UINT8 (tag_data);
tag_data += 1;
tag_size -= 1;
GST_DEBUG (" keyframe offset = %d", entry->key_frame_offset);
entry->flags = GST_READ_UINT8 (tag_data);
tag_data += 1;
tag_size -= 1;
GST_DEBUG (" flags = 0x%02x", entry->flags);
entry->stream_offset = GST_READ_UINT64_BE (tag_data);
tag_data += 8;
tag_size -= 8;
GST_DEBUG (" stream offset = %" G_GUINT64_FORMAT,
entry->stream_offset);
entry->slice_offset = g_new0 (guint32, segment->slice_count);
for (j = 0; j < segment->slice_count; j++) {
entry->slice_offset[j] = GST_READ_UINT32_BE (tag_data);
tag_data += 4;
tag_size -= 4;
GST_DEBUG (" slice %u offset = %u", j, entry->slice_offset[j]);
}
entry->pos_table = g_new0 (MXFFraction, segment->pos_table_count);
for (j = 0; j < segment->pos_table_count; j++) {
mxf_fraction_parse (&entry->pos_table[j], tag_data, tag_size);
tag_data += 8;
tag_size -= 8;
GST_DEBUG (" pos table %u = %d/%d", j, entry->pos_table[j].n,
entry->pos_table[j].d);
}
}
break;
}
default:
if (!primer->mappings) {
GST_WARNING ("No valid primer pack for this partition");
} else if (!mxf_local_tag_add_to_hash_table (primer, tag, tag_data,
tag_size, &segment->other_tags)) {
goto error;
}
break;
}
next:
data += 4 + tag_size;
size -= 4 + tag_size;
}
return TRUE;
error:
GST_ERROR ("Invalid index table segment");
return FALSE;
}
void
mxf_index_table_segment_reset (MXFIndexTableSegment * segment)
{
guint i;
g_return_if_fail (segment != NULL);
for (i = 0; i < segment->n_index_entries; i++) {
g_free (segment->index_entries[i].slice_offset);
g_free (segment->index_entries[i].pos_table);
}
g_free (segment->index_entries);
g_free (segment->delta_entries);
if (segment->other_tags)
g_hash_table_destroy (segment->other_tags);
memset (segment, 0, sizeof (MXFIndexTableSegment));
}
/* SMPTE 377M 8.2 Table 1 and 2 */
static void
_mxf_mapping_ul_free (MXFUL * ul)
{
g_slice_free (MXFUL, ul);
}
gboolean
mxf_primer_pack_parse (const MXFUL * ul, MXFPrimerPack * pack,
const guint8 * data, guint size)
{
guint i;
guint32 n;
g_return_val_if_fail (data != NULL, FALSE);
g_return_val_if_fail (size >= 8, FALSE);
memset (pack, 0, sizeof (MXFPrimerPack));
GST_DEBUG ("Parsing primer pack:");
pack->mappings =
g_hash_table_new_full (g_direct_hash, g_direct_equal,
(GDestroyNotify) NULL, (GDestroyNotify) _mxf_mapping_ul_free);
n = GST_READ_UINT32_BE (data);
data += 4;
GST_DEBUG (" number of mappings = %u", n);
if (GST_READ_UINT32_BE (data) != 18)
goto error;
data += 4;
if (size < 8 + n * 18)
goto error;
for (i = 0; i < n; i++) {
guint local_tag;
#ifndef GST_DISABLE_GST_DEBUG
gchar str[48];
#endif
MXFUL *uid;
local_tag = GST_READ_UINT16_BE (data);
data += 2;
if (g_hash_table_lookup (pack->mappings, GUINT_TO_POINTER (local_tag)))
continue;
uid = g_slice_new (MXFUL);
memcpy (uid, data, 16);
data += 16;
g_hash_table_insert (pack->mappings, GUINT_TO_POINTER (local_tag), uid);
GST_DEBUG (" Adding mapping = 0x%04x -> %s", local_tag,
mxf_ul_to_string (uid, str));
}
return TRUE;
error:
GST_DEBUG ("Invalid primer pack");
mxf_primer_pack_reset (pack);
return FALSE;
}
void
mxf_primer_pack_reset (MXFPrimerPack * pack)
{
g_return_if_fail (pack != NULL);
if (pack->mappings)
g_hash_table_destroy (pack->mappings);
if (pack->reverse_mappings)
g_hash_table_destroy (pack->reverse_mappings);
memset (pack, 0, sizeof (MXFPrimerPack));
pack->next_free_tag = 0x8000;
}
guint16
mxf_primer_pack_add_mapping (MXFPrimerPack * primer, guint16 local_tag,
const MXFUL * ul)
{
MXFUL *uid;
#ifndef GST_DISABLE_GST_DEBUG
gchar str[48];
#endif
guint ltag_tmp = local_tag;
if (primer->mappings == NULL) {
primer->mappings = g_hash_table_new_full (g_direct_hash, g_direct_equal,
(GDestroyNotify) NULL, (GDestroyNotify) _mxf_mapping_ul_free);
}
if (primer->reverse_mappings == NULL) {
primer->reverse_mappings = g_hash_table_new_full ((GHashFunc) mxf_ul_hash,
(GEqualFunc) mxf_ul_is_equal, (GDestroyNotify) _mxf_mapping_ul_free,
(GDestroyNotify) NULL);
}
if (primer->next_free_tag == 0xffff && ltag_tmp == 0) {
GST_ERROR ("Used too many dynamic tags");
return 0;
}
if (ltag_tmp == 0) {
guint tmp;
tmp = GPOINTER_TO_UINT (g_hash_table_lookup (primer->reverse_mappings, ul));
if (tmp == 0) {
ltag_tmp = primer->next_free_tag;
primer->next_free_tag++;
}
} else {
if (g_hash_table_lookup (primer->mappings, GUINT_TO_POINTER (ltag_tmp)))
return ltag_tmp;
}
g_assert (ltag_tmp != 0);
uid = g_slice_new (MXFUL);
memcpy (uid, ul, 16);
GST_DEBUG ("Adding mapping = 0x%04x -> %s", ltag_tmp,
mxf_ul_to_string (uid, str));
g_hash_table_insert (primer->mappings, GUINT_TO_POINTER (ltag_tmp), uid);
uid = g_slice_dup (MXFUL, uid);
g_hash_table_insert (primer->reverse_mappings, uid,
GUINT_TO_POINTER (ltag_tmp));
return ltag_tmp;
}
GstBuffer *
mxf_primer_pack_to_buffer (const MXFPrimerPack * pack)
{
guint slen;
guint8 ber[9];
GstBuffer *ret;
guint n;
guint8 *data;
if (pack->mappings)
n = g_hash_table_size (pack->mappings);
else
n = 0;
slen = mxf_ber_encode_size (8 + 18 * n, ber);
ret = gst_buffer_new_and_alloc (16 + slen + 8 + 18 * n);
memcpy (GST_BUFFER_DATA (ret), MXF_UL (PRIMER_PACK), 16);
memcpy (GST_BUFFER_DATA (ret) + 16, &ber, slen);
data = GST_BUFFER_DATA (ret) + 16 + slen;
GST_WRITE_UINT32_BE (data, n);
GST_WRITE_UINT32_BE (data + 4, 18);
data += 8;
if (pack->mappings) {
guint local_tag;
MXFUL *ul;
#if GLIB_CHECK_VERSION (2, 16, 0)
GHashTableIter iter;
g_hash_table_iter_init (&iter, pack->mappings);
#else
GList *l, *keys;
keys = g_hash_table_get_keys (pack->mappings);
#endif
#if GLIB_CHECK_VERSION (2, 16, 0)
while (g_hash_table_iter_next (&iter, (gpointer) & local_tag,
(gpointer) & ul)) {
#else
for (l = keys; l; l = l->next) {
local_tag = GPOINTER_TO_UINT (l->data);
ul = g_hash_table_lookup (pack->mappings, GUINT_TO_POINTER (local_tag));
#endif
GST_WRITE_UINT16_BE (data, local_tag);
memcpy (data + 2, ul, 16);
data += 18;
}
#if !GLIB_CHECK_VERSION (2, 16, 0)
g_list_free (keys);
#endif
}
return ret;
}
/* structural metadata parsing */
gboolean
mxf_local_tag_parse (const guint8 * data, guint size, guint16 * tag,
guint16 * tag_size, const guint8 ** tag_data)
{
g_return_val_if_fail (data != NULL, FALSE);
if (size < 4)
return FALSE;
*tag = GST_READ_UINT16_BE (data);
*tag_size = GST_READ_UINT16_BE (data + 2);
if (size < 4 + *tag_size)
return FALSE;
*tag_data = data + 4;
return TRUE;
}
void
mxf_local_tag_free (MXFLocalTag * tag)
{
if (tag->g_slice)
g_slice_free1 (tag->size, tag->data);
else
g_free (tag->data);
g_slice_free (MXFLocalTag, tag);
}
gboolean
mxf_local_tag_add_to_hash_table (const MXFPrimerPack * primer,
guint16 tag, const guint8 * tag_data, guint16 tag_size,
GHashTable ** hash_table)
{
MXFLocalTag *local_tag;
MXFUL *ul;
g_return_val_if_fail (primer != NULL, FALSE);
g_return_val_if_fail (tag_data != NULL, FALSE);
g_return_val_if_fail (hash_table != NULL, FALSE);
g_return_val_if_fail (primer->mappings != NULL, FALSE);
if (*hash_table == NULL)
*hash_table =
g_hash_table_new_full ((GHashFunc) mxf_ul_hash,
(GEqualFunc) mxf_ul_is_equal, (GDestroyNotify) NULL,
(GDestroyNotify) mxf_local_tag_free);
g_return_val_if_fail (*hash_table != NULL, FALSE);
ul = (MXFUL *) g_hash_table_lookup (primer->mappings,
GUINT_TO_POINTER (((guint) tag)));
if (ul) {
#ifndef GST_DISABLE_GST_DEBUG
gchar str[48];
#endif
GST_DEBUG ("Adding local tag 0x%04x with UL %s and size %u", tag,
mxf_ul_to_string (ul, str), tag_size);
local_tag = g_slice_new (MXFLocalTag);
memcpy (&local_tag->ul, ul, sizeof (MXFUL));
local_tag->size = tag_size;
local_tag->data = g_memdup (tag_data, tag_size);
g_hash_table_insert (*hash_table, &local_tag->ul, local_tag);
} else {
GST_WARNING ("Local tag with no entry in primer pack: 0x%04x", tag);
}
return TRUE;
}
gboolean
mxf_local_tag_insert (MXFLocalTag * tag, GHashTable ** hash_table)
{
#ifndef GST_DISABLE_GST_DEBUG
gchar str[48];
#endif
g_return_val_if_fail (tag != NULL, FALSE);
g_return_val_if_fail (hash_table != NULL, FALSE);
if (*hash_table == NULL)
*hash_table =
g_hash_table_new_full ((GHashFunc) mxf_ul_hash,
(GEqualFunc) mxf_ul_is_equal, (GDestroyNotify) NULL,
(GDestroyNotify) mxf_local_tag_free);
g_return_val_if_fail (*hash_table != NULL, FALSE);
GST_DEBUG ("Adding local tag with UL %s and size %u",
mxf_ul_to_string (&tag->ul, str), tag->size);
g_hash_table_insert (*hash_table, &tag->ul, tag);
return TRUE;
}