mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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6d367d6b48
This was completely broken before and could only work on a very constrained set of files. After these changes it should work except for situations where PTS != DTS, which is not handled at all in mxfdemux currently. https://bugzilla.gnome.org/show_bug.cgi?id=759118
267 lines
7.8 KiB
C
267 lines
7.8 KiB
C
/* GStreamer
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* Copyright (C) 2008-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/* Definitions of the basic MXF types, excluding structural metadata */
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#ifndef __MXF_TYPES_H__
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#define __MXF_TYPES_H__
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#include <gst/gst.h>
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#include "mxful.h"
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typedef struct {
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guint8 u[16];
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} MXFUUID;
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/* SMPTE 377M 3.2 */
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typedef struct {
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guint8 u[32];
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} MXFUMID;
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/* SMPTE 377M 3.3 */
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typedef struct {
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gint16 year;
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guint8 month;
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guint8 day;
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guint8 hour;
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guint8 minute;
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guint8 second;
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guint16 msecond;
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} MXFTimestamp;
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/* SMPTE 377M 3.3 */
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typedef struct {
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guint16 major;
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guint16 minor;
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guint16 patch;
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guint16 build;
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guint16 release;
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} MXFProductVersion;
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/* SMPTE 377M 3.3 */
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typedef struct {
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gint32 n;
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gint32 d;
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} MXFFraction;
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/* SMPTE 377M 8.3 */
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typedef struct {
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MXFUL ul;
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guint16 size;
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guint8 *data;
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gboolean g_slice; /* TRUE if data was allocated by GSlice */
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} MXFLocalTag;
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/* SMPTE 377M 11.1 */
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typedef struct {
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guint32 body_sid;
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guint64 offset;
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} MXFRandomIndexPackEntry;
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typedef enum {
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MXF_OP_UNKNOWN = 0,
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MXF_OP_ATOM,
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MXF_OP_1a,
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MXF_OP_1b,
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MXF_OP_1c,
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MXF_OP_2a,
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MXF_OP_2b,
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MXF_OP_2c,
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MXF_OP_3a,
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MXF_OP_3b,
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MXF_OP_3c,
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} MXFOperationalPattern;
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typedef enum {
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MXF_PARTITION_PACK_HEADER,
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MXF_PARTITION_PACK_BODY,
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MXF_PARTITION_PACK_FOOTER
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} MXFPartitionPackType;
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/* SMPTE 377M 6.1, Table 1 and 2 */
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typedef struct {
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MXFPartitionPackType type;
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gboolean closed;
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gboolean complete;
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guint16 major_version;
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guint16 minor_version;
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guint32 kag_size;
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guint64 this_partition;
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guint64 prev_partition;
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guint64 footer_partition;
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guint64 header_byte_count;
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guint64 index_byte_count;
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guint32 index_sid;
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guint64 body_offset;
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guint32 body_sid;
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MXFUL operational_pattern;
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guint32 n_essence_containers;
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MXFUL *essence_containers;
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} MXFPartitionPack;
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/* SMPTE 377M 8.1 */
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typedef struct {
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guint64 offset;
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GHashTable *mappings;
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GHashTable *reverse_mappings;
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guint16 next_free_tag;
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} MXFPrimerPack;
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/* SMPTE 377M 10.2.3 */
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typedef struct {
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gint8 pos_table_index;
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guint8 slice;
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guint32 element_delta;
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} MXFDeltaEntry;
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typedef struct {
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gint8 temporal_offset;
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gint8 key_frame_offset;
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guint8 flags;
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guint64 stream_offset;
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guint32 *slice_offset;
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MXFFraction *pos_table;
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} MXFIndexEntry;
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typedef struct {
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MXFUUID instance_id;
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MXFFraction index_edit_rate;
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gint64 index_start_position;
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gint64 index_duration;
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guint32 edit_unit_byte_count;
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guint32 index_sid;
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guint32 body_sid;
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guint8 slice_count;
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guint8 pos_table_count;
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guint32 n_delta_entries;
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MXFDeltaEntry *delta_entries;
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guint32 n_index_entries;
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MXFIndexEntry *index_entries;
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} MXFIndexTableSegment;
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#define GST_TAG_MXF_UMID "mxf-umid"
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#define GST_TAG_MXF_STRUCTURE "mxf-structure"
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#define GST_TAG_MXF_DESCRIPTIVE_METADATA_FRAMEWORK "mxf-descriptive-metadata-framework"
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void mxf_uuid_init (MXFUUID *uuid, GHashTable *hashtable);
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gboolean mxf_uuid_is_equal (const MXFUUID *a, const MXFUUID *b);
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gboolean mxf_uuid_is_zero (const MXFUUID *uuid);
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guint mxf_uuid_hash (const MXFUUID *uuid);
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gchar * mxf_uuid_to_string (const MXFUUID *uuid, gchar str[48]);
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MXFUUID * mxf_uuid_from_string (const gchar *str, MXFUUID *uuid);
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gboolean mxf_uuid_array_parse (MXFUUID ** array, guint32 * count, const guint8 * data, guint size);
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gchar *mxf_umid_to_string (const MXFUMID * umid, gchar str[96]);
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MXFUMID *mxf_umid_from_string (const gchar *str, MXFUMID * umid);
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gboolean mxf_umid_is_equal (const MXFUMID *a, const MXFUMID *b);
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gboolean mxf_umid_is_zero (const MXFUMID *umid);
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void mxf_umid_init (MXFUMID *umid);
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gboolean mxf_is_mxf_packet (const MXFUL *ul);
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gboolean mxf_is_partition_pack (const MXFUL *ul);
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gboolean mxf_is_header_partition_pack (const MXFUL *ul);
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gboolean mxf_is_body_partition_pack (const MXFUL *ul);
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gboolean mxf_is_footer_partition_pack (const MXFUL *ul);
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gboolean mxf_is_primer_pack (const MXFUL *ul);
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gboolean mxf_is_metadata (const MXFUL *ul);
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gboolean mxf_is_descriptive_metadata (const MXFUL *ul);
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gboolean mxf_is_random_index_pack (const MXFUL *ul);
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gboolean mxf_is_index_table_segment (const MXFUL *ul);
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gboolean mxf_is_generic_container_system_item (const MXFUL *ul);
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gboolean mxf_is_generic_container_essence_element (const MXFUL *ul);
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gboolean mxf_is_avid_essence_container_essence_element (const MXFUL * key);
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gboolean mxf_is_generic_container_essence_container_label (const MXFUL *ul);
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gboolean mxf_is_avid_essence_container_label (const MXFUL *ul);
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gboolean mxf_is_fill (const MXFUL *ul);
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guint mxf_ber_encode_size (guint size, guint8 ber[9]);
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gchar * mxf_utf16_to_utf8 (const guint8 * data, guint size);
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guint8 * mxf_utf8_to_utf16 (const gchar *str, guint16 *size);
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gboolean mxf_product_version_parse (MXFProductVersion * product_version,
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const guint8 * data, guint size);
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gboolean mxf_product_version_is_valid (const MXFProductVersion *version);
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void mxf_product_version_write (const MXFProductVersion *version, guint8 *data);
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gboolean mxf_fraction_parse (MXFFraction *fraction, const guint8 *data, guint size);
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gdouble mxf_fraction_to_double (const MXFFraction *fraction);
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gboolean mxf_timestamp_parse (MXFTimestamp * timestamp, const guint8 * data, guint size);
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gboolean mxf_timestamp_is_unknown (const MXFTimestamp *a);
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gint mxf_timestamp_compare (const MXFTimestamp *a, const MXFTimestamp *b);
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gchar *mxf_timestamp_to_string (const MXFTimestamp *t, gchar str[32]);
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void mxf_timestamp_set_now (MXFTimestamp *timestamp);
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void mxf_timestamp_write (const MXFTimestamp *timestamp, guint8 *data);
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void mxf_op_set_atom (MXFUL *ul, gboolean single_sourceclip, gboolean single_essence_track);
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void mxf_op_set_generalized (MXFUL *ul, MXFOperationalPattern pattern, gboolean internal_essence, gboolean streamable, gboolean single_track);
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GstBuffer * mxf_fill_to_buffer (guint size);
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gboolean mxf_partition_pack_parse (const MXFUL *ul, MXFPartitionPack *pack, const guint8 *data, guint size);
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void mxf_partition_pack_reset (MXFPartitionPack *pack);
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GstBuffer * mxf_partition_pack_to_buffer (const MXFPartitionPack *pack);
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gboolean mxf_primer_pack_parse (const MXFUL *ul, MXFPrimerPack *pack, const guint8 *data, guint size);
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void mxf_primer_pack_reset (MXFPrimerPack *pack);
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guint16 mxf_primer_pack_add_mapping (MXFPrimerPack *primer, guint16 local_tag, const MXFUL *ul);
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GstBuffer * mxf_primer_pack_to_buffer (const MXFPrimerPack *pack);
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gboolean mxf_random_index_pack_parse (const MXFUL *ul, const guint8 *data, guint size, GArray **array);
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GstBuffer * mxf_random_index_pack_to_buffer (const GArray *array);
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gboolean mxf_index_table_segment_parse (const MXFUL *ul, MXFIndexTableSegment *segment, const guint8 *data, guint size);
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void mxf_index_table_segment_reset (MXFIndexTableSegment *segment);
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GstBuffer * mxf_index_table_segment_to_buffer (const MXFIndexTableSegment *segment);
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gboolean mxf_local_tag_parse (const guint8 * data, guint size, guint16 * tag,
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guint16 * tag_size, const guint8 ** tag_data);
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void mxf_local_tag_free (MXFLocalTag *tag);
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gboolean mxf_local_tag_add_to_hash_table (const MXFPrimerPack *primer,
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guint16 tag, const guint8 *tag_data, guint16 tag_size,
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GHashTable **hash_table);
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gboolean mxf_local_tag_insert (MXFLocalTag *tag, GHashTable **hash_table);
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#endif /* __MXF_TYPES_H__ */
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