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gstreamer/gst/isomp4/atoms.h
Vivia Nikolaidou 5817c659e6 qtmux: Add option to create a timecode trak in non-mov flavors 
Even if timecode trak is officially unsupported in non-mov flavors,
some software still supports it, e.g. Final Cut Pro X:

https://developer.apple.com/library/archive/technotes/tn2174/_index.html

The user might still expect to see the timecode information in the
non-mov file despite it being officially unsupported , because other
software e.g. QuickTime will create a timecode trak even in mp4 files.
Furthermore, software that supports timecode trak in non-mov flavors
will also display the file duration in "timecode units" instead of real
clock time, which is not necessarily the same for 29.97 fps and friends.
This might confuse users, who see a different duration for the same
framerate and amount of frames depending on whether the container is mp4
or mov.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/issues/512
2020-04-03 18:19:38 +00:00

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/* Quicktime muxer plugin for GStreamer
* Copyright (C) 2008-2010 Thiago Santos <thiagoss@embedded.ufcg.edu.br>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/*
* Unless otherwise indicated, Source Code is licensed under MIT license.
* See further explanation attached in License Statement (distributed in the file
* LICENSE).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __ATOMS_H__
#define __ATOMS_H__
#include <glib.h>
#include <string.h>
#include <gst/video/video.h>
#include "descriptors.h"
#include "properties.h"
#include "fourcc.h"
/* helper storage struct */
#define ATOM_ARRAY(struct_type) \
struct { \
guint size; \
guint len; \
struct_type *data; \
}
/* storage helpers */
#define atom_array_init(array, reserve) \
G_STMT_START { \
(array)->len = 0; \
(array)->size = reserve; \
(array)->data = g_malloc (sizeof (*(array)->data) * reserve); \
} G_STMT_END
#define atom_array_append(array, elmt, inc) \
G_STMT_START { \
g_assert ((array)->data); \
g_assert (inc > 0); \
if (G_UNLIKELY ((array)->len == (array)->size)) { \
(array)->size += inc; \
(array)->data = \
g_realloc ((array)->data, sizeof (*((array)->data)) * (array)->size); \
} \
(array)->data[(array)->len] = elmt; \
(array)->len++; \
} G_STMT_END
#define atom_array_get_len(array) ((array)->len)
#define atom_array_index(array, index) ((array)->data[index])
#define atom_array_clear(array) \
G_STMT_START { \
(array)->size = (array)->len = 0; \
g_free ((array)->data); \
(array)->data = NULL; \
} G_STMT_END
/* light-weight context that may influence header atom tree construction */
typedef enum _AtomsTreeFlavor
{
ATOMS_TREE_FLAVOR_MOV,
ATOMS_TREE_FLAVOR_ISOM,
ATOMS_TREE_FLAVOR_3GP,
ATOMS_TREE_FLAVOR_ISML
} AtomsTreeFlavor;
typedef struct _AtomsContext
{
AtomsTreeFlavor flavor;
gboolean force_create_timecode_trak;
} AtomsContext;
AtomsContext* atoms_context_new (AtomsTreeFlavor flavor, gboolean force_create_timecode_trak);
void atoms_context_free (AtomsContext *context);
#define METADATA_DATA_FLAG 0x0
#define METADATA_TEXT_FLAG 0x1
/* atom defs and functions */
typedef struct _AtomInfo AtomInfo;
/*
* Used for storing time related values for some atoms.
*/
typedef struct _TimeInfo
{
guint64 creation_time;
guint64 modification_time;
guint32 timescale;
guint64 duration;
} TimeInfo;
typedef struct _Atom
{
guint32 size;
guint32 type;
guint64 extended_size;
} Atom;
typedef struct _AtomFull
{
Atom header;
guint8 version;
guint8 flags[3];
} AtomFull;
/*
* Generic extension atom
*/
typedef struct _AtomData
{
Atom header;
/* not written */
guint32 datalen;
guint8 *data;
} AtomData;
typedef struct _AtomUUID
{
Atom header;
guint8 uuid[16];
/* not written */
guint32 datalen;
guint8 *data;
} AtomUUID;
typedef struct _AtomFTYP
{
Atom header;
guint32 major_brand;
guint32 version;
guint32 *compatible_brands;
/* not written */
guint32 compatible_brands_size;
} AtomFTYP;
typedef struct _AtomMVHD
{
AtomFull header;
/* version 0: 32 bits */
TimeInfo time_info;
guint32 prefered_rate; /* ISO: 0x00010000 */
guint16 volume; /* ISO: 0x0100 */
guint16 reserved3; /* ISO: 0x0 */
guint32 reserved4[2]; /* ISO: 0, 0 */
/* ISO: identity matrix =
* { 0x00010000, 0, 0, 0, 0x00010000, 0, 0, 0, 0x40000000 } */
guint32 matrix[9];
/* ISO: all 0 */
guint32 preview_time;
guint32 preview_duration;
guint32 poster_time;
guint32 selection_time;
guint32 selection_duration;
guint32 current_time;
guint32 next_track_id;
} AtomMVHD;
typedef struct _AtomTKHD
{
AtomFull header;
/* version 0: 32 bits */
/* like the TimeInfo struct, but it has this track_ID inside */
guint64 creation_time;
guint64 modification_time;
guint32 track_ID;
guint32 reserved;
guint64 duration;
guint32 reserved2[2];
guint16 layer;
guint16 alternate_group;
guint16 volume;
guint16 reserved3;
/* ISO: identity matrix =
* { 0x00010000, 0, 0, 0, 0x00010000, 0, 0, 0, 0x40000000 } */
guint32 matrix[9];
guint32 width;
guint32 height;
} AtomTKHD;
typedef struct _AtomMDHD
{
AtomFull header;
/* version 0: 32 bits */
TimeInfo time_info;
/* ISO: packed ISO-639-2/T language code (first bit must be 0) */
guint16 language_code;
/* ISO: 0 */
guint16 quality;
} AtomMDHD;
typedef struct _AtomHDLR
{
AtomFull header;
/* ISO: 0 */
guint32 component_type;
guint32 handler_type;
guint32 manufacturer;
guint32 flags;
guint32 flags_mask;
gchar *name;
AtomsTreeFlavor flavor;
} AtomHDLR;
typedef struct _AtomVMHD
{
AtomFull header; /* ISO: flags = 1 */
guint16 graphics_mode;
/* RGB */
guint16 opcolor[3];
} AtomVMHD;
typedef struct _AtomSMHD
{
AtomFull header;
guint16 balance;
guint16 reserved;
} AtomSMHD;
typedef struct _AtomHMHD
{
AtomFull header;
guint16 max_pdu_size;
guint16 avg_pdu_size;
guint32 max_bitrate;
guint32 avg_bitrate;
guint32 sliding_avg_bitrate;
} AtomHMHD;
typedef struct _AtomTCMI
{
AtomFull header;
guint16 text_font;
guint16 text_face;
guint16 text_size;
guint16 text_color[3];
guint16 bg_color[3];
gchar *font_name;
} AtomTCMI;
typedef struct _AtomTMCD
{
Atom header;
AtomTCMI tcmi;
} AtomTMCD;
typedef struct _AtomGMIN
{
AtomFull header;
guint16 graphics_mode;
guint16 opcolor[3];
guint8 balance;
guint8 reserved;
} AtomGMIN;
typedef struct _AtomGMHD
{
Atom header;
/* Only gmin is required in a gmhd atom
* The other fields are optional */
AtomGMIN gmin;
AtomTMCD *tmcd;
} AtomGMHD;
typedef struct _AtomNMHD
{
Atom header;
guint32 flags;
} AtomNMHD;
typedef struct _AtomURL
{
AtomFull header;
gchar *location;
} AtomURL;
typedef struct _AtomDREF
{
AtomFull header;
GList *entries;
} AtomDREF;
typedef struct _AtomDINF
{
Atom header;
AtomDREF dref;
} AtomDINF;
typedef struct _STTSEntry
{
guint32 sample_count;
gint32 sample_delta;
} STTSEntry;
typedef struct _AtomSTTS
{
AtomFull header;
ATOM_ARRAY (STTSEntry) entries;
} AtomSTTS;
typedef struct _AtomSTSS
{
AtomFull header;
ATOM_ARRAY (guint32) entries;
} AtomSTSS;
typedef struct _AtomESDS
{
AtomFull header;
ESDescriptor es;
} AtomESDS;
typedef struct _AtomFRMA
{
Atom header;
guint32 media_type;
} AtomFRMA;
typedef enum _SampleEntryKind
{
UNKNOWN,
AUDIO,
VIDEO,
SUBTITLE,
TIMECODE,
CLOSEDCAPTION
} SampleEntryKind;
typedef struct _SampleTableEntry
{
Atom header;
guint8 reserved[6];
guint16 data_reference_index;
/* type of entry */
SampleEntryKind kind;
} SampleTableEntry;
typedef struct _AtomHintSampleEntry
{
SampleTableEntry se;
guint32 size;
guint8 *data;
} AtomHintSampleEntry;
typedef struct _SampleTableEntryMP4V
{
SampleTableEntry se;
guint16 version;
guint16 revision_level;
guint32 vendor; /* fourcc code */
guint32 temporal_quality;
guint32 spatial_quality;
guint16 width;
guint16 height;
guint32 horizontal_resolution;
guint32 vertical_resolution;
guint32 datasize;
guint16 frame_count; /* usually 1 */
guint8 compressor[32]; /* pascal string, i.e. first byte = length */
guint16 depth;
guint16 color_table_id;
/* (optional) list of AtomInfo */
GList *extension_atoms;
} SampleTableEntryMP4V;
typedef struct _SampleTableEntryMP4A
{
SampleTableEntry se;
guint16 version;
guint16 revision_level;
guint32 vendor;
guint16 channels;
guint16 sample_size;
guint16 compression_id;
guint16 packet_size;
guint32 sample_rate; /* fixed point 16.16 */
guint32 samples_per_packet;
guint32 bytes_per_packet;
guint32 bytes_per_frame;
guint32 bytes_per_sample;
/* (optional) list of AtomInfo */
GList *extension_atoms;
} SampleTableEntryMP4A;
typedef struct _AtomNAME
{
Atom header;
guint8 language_code;
gchar *name;
} AtomNAME;
typedef struct _SampleTableEntryTMCD
{
SampleTableEntry se;
guint32 tc_flags;
guint32 timescale;
guint32 frame_duration;
guint8 n_frames;
AtomNAME name;
} SampleTableEntryTMCD;
typedef struct _SampleTableEntryTX3G
{
SampleTableEntry se;
guint32 display_flags;
guint64 default_text_box;
guint16 font_id;
guint8 font_face; /* bold=0x1, italic=0x2, underline=0x4 */
guint8 font_size; /* should always be 0.05 multiplied by the video track header height */
guint32 foreground_color_rgba;
} SampleTableEntryTX3G;
typedef struct _AtomSTSD
{
AtomFull header;
guint n_entries;
/* list of subclasses of SampleTableEntry */
GList *entries;
} AtomSTSD;
typedef struct _AtomSTSZ
{
AtomFull header;
guint32 sample_size;
/* need the size here because when sample_size is constant,
* the list is empty */
guint32 table_size;
ATOM_ARRAY (guint32) entries;
} AtomSTSZ;
typedef struct _STSCEntry
{
guint32 first_chunk;
guint32 samples_per_chunk;
guint32 sample_description_index;
} STSCEntry;
typedef struct _AtomSTSC
{
AtomFull header;
ATOM_ARRAY (STSCEntry) entries;
} AtomSTSC;
/* FIXME: this can support multiple tracks */
typedef struct _AtomTREF
{
Atom header;
guint32 reftype;
ATOM_ARRAY (guint32) entries;
} AtomTREF;
/*
* used for both STCO and CO64
* if used as STCO, entries should be truncated to use only 32bits
*/
typedef struct _AtomSTCO64
{
AtomFull header;
/* Global offset to add to entries when serialising */
guint32 chunk_offset;
ATOM_ARRAY (guint64) entries;
} AtomSTCO64;
typedef struct _CTTSEntry
{
guint32 samplecount;
guint32 sampleoffset;
} CTTSEntry;
typedef struct _AtomCTTS
{
AtomFull header;
/* also entry count here */
ATOM_ARRAY (CTTSEntry) entries;
gboolean do_pts;
} AtomCTTS;
typedef struct _AtomSVMI
{
AtomFull header;
guint8 stereoscopic_composition_type;
gboolean is_left_first;
} AtomSVMI;
typedef struct _AtomSTBL
{
Atom header;
AtomSTSD stsd;
AtomSTTS stts;
AtomSTSS stss;
AtomSTSC stsc;
AtomSTSZ stsz;
/* NULL if not present */
AtomCTTS *ctts;
/* NULL if not present */
AtomSVMI *svmi;
AtomSTCO64 stco64;
} AtomSTBL;
typedef struct _AtomMINF
{
Atom header;
/* only (exactly) one of those must be present */
AtomVMHD *vmhd;
AtomSMHD *smhd;
AtomHMHD *hmhd;
AtomGMHD *gmhd;
AtomNMHD *nmhd;
AtomHDLR *hdlr;
AtomDINF dinf;
AtomSTBL stbl;
} AtomMINF;
typedef struct _EditListEntry
{
/* duration in movie's timescale */
guint32 duration;
/* start time in media's timescale, -1 for empty */
guint32 media_time;
guint32 media_rate; /* fixed point 32 bit */
} EditListEntry;
typedef struct _AtomELST
{
AtomFull header;
/* number of entries is implicit */
GSList *entries;
} AtomELST;
typedef struct _AtomEDTS
{
Atom header;
AtomELST elst;
} AtomEDTS;
typedef struct _AtomMDIA
{
Atom header;
AtomMDHD mdhd;
AtomHDLR hdlr;
AtomMINF minf;
} AtomMDIA;
typedef struct _AtomILST
{
Atom header;
/* list of AtomInfo */
GList* entries;
} AtomILST;
typedef struct _AtomTagData
{
AtomFull header;
guint32 reserved;
guint32 datalen;
guint8* data;
} AtomTagData;
typedef struct _AtomTag
{
Atom header;
AtomTagData data;
} AtomTag;
typedef struct _AtomMETA
{
AtomFull header;
AtomHDLR hdlr;
AtomILST *ilst;
} AtomMETA;
typedef struct _AtomUDTA
{
Atom header;
/* list of AtomInfo */
GList* entries;
/* or list is further down */
AtomMETA *meta;
AtomsContext *context;
} AtomUDTA;
enum TrFlags
{
TR_DATA_OFFSET = 0x01, /* data-offset-present */
TR_FIRST_SAMPLE_FLAGS = 0x04, /* first-sample-flags-present */
TR_SAMPLE_DURATION = 0x0100, /* sample-duration-present */
TR_SAMPLE_SIZE = 0x0200, /* sample-size-present */
TR_SAMPLE_FLAGS = 0x0400, /* sample-flags-present */
TR_COMPOSITION_TIME_OFFSETS = 0x0800 /* sample-composition-time-offsets-presents */
};
enum TfFlags
{
TF_BASE_DATA_OFFSET = 0x01, /* base-data-offset-present */
TF_SAMPLE_DESCRIPTION_INDEX = 0x02, /* sample-description-index-present */
TF_DEFAULT_SAMPLE_DURATION = 0x08, /* default-sample-duration-present */
TF_DEFAULT_SAMPLE_SIZE = 0x010, /* default-sample-size-present */
TF_DEFAULT_SAMPLE_FLAGS = 0x020, /* default-sample-flags-present */
TF_DURATION_IS_EMPTY = 0x010000, /* sample-composition-time-offsets-presents */
TF_DEFAULT_BASE_IS_MOOF = 0x020000 /* default-base-is-moof */
};
/* Timecode flags */
enum TcFlags
{
TC_DROP_FRAME = 0x0001, /* Drop-frame timecode */
TC_24H_MAX = 0x0002, /* Whether the timecode wraps after 24 hours */
TC_NEGATIVE_OK = 0x0004, /* Whether negative time values are OK */
TC_COUNTER = 0x0008 /* Whether the time value corresponds to a tape counter value */
};
typedef struct _AtomTRAK
{
Atom header;
AtomTKHD tkhd;
AtomInfo *tapt;
AtomEDTS *edts;
AtomMDIA mdia;
AtomUDTA udta;
AtomTREF *tref;
/* some helper info for structural conformity checks */
gboolean is_video;
gboolean is_h264;
AtomsContext *context;
} AtomTRAK;
typedef struct _AtomTREX
{
AtomFull header;
guint32 track_ID;
guint32 default_sample_description_index;
guint32 default_sample_duration;
guint32 default_sample_size;
guint32 default_sample_flags;
} AtomTREX;
typedef struct _AtomMEHD
{
AtomFull header;
guint64 fragment_duration;
} AtomMEHD;
typedef struct _AtomMVEX
{
Atom header;
AtomMEHD mehd;
/* list of AtomTREX */
GList *trexs;
} AtomMVEX;
typedef struct _AtomMFHD
{
AtomFull header;
guint32 sequence_number;
} AtomMFHD;
typedef struct _AtomTFHD
{
AtomFull header;
guint32 track_ID;
guint64 base_data_offset;
guint32 sample_description_index;
guint32 default_sample_duration;
guint32 default_sample_size;
guint32 default_sample_flags;
} AtomTFHD;
typedef struct _AtomTFDT
{
AtomFull header;
guint64 base_media_decode_time;
} AtomTFDT;
typedef struct _TRUNSampleEntry
{
guint32 sample_duration;
guint32 sample_size;
guint32 sample_flags;
guint32 sample_composition_time_offset;
} TRUNSampleEntry;
typedef struct _AtomTRUN
{
AtomFull header;
guint32 sample_count;
gint32 data_offset;
guint32 first_sample_flags;
/* array of fields */
ATOM_ARRAY (TRUNSampleEntry) entries;
} AtomTRUN;
typedef struct _AtomSDTP
{
AtomFull header;
/* not serialized */
guint32 sample_count;
/* array of fields */
ATOM_ARRAY (guint8) entries;
} AtomSDTP;
typedef struct _AtomTRAF
{
Atom header;
AtomTFHD tfhd;
AtomTFDT tfdt;
/* list of AtomTRUN */
GList *truns;
/* list of AtomSDTP */
GList *sdtps;
} AtomTRAF;
typedef struct _AtomMOOF
{
Atom header;
AtomMFHD mfhd;
/* list of AtomTRAF */
GList *trafs;
} AtomMOOF;
typedef struct _AtomMOOV
{
/* style */
AtomsContext context;
Atom header;
AtomMVHD mvhd;
AtomMVEX mvex;
/* list of AtomTRAK */
GList *traks;
AtomUDTA udta;
gboolean fragmented;
guint32 chunks_offset;
} AtomMOOV;
typedef struct _AtomWAVE
{
Atom header;
/* list of AtomInfo */
GList *extension_atoms;
} AtomWAVE;
typedef struct _TFRAEntry
{
guint64 time;
guint64 moof_offset;
guint32 traf_number;
guint32 trun_number;
guint32 sample_number;
} TFRAEntry;
typedef struct _AtomTFRA
{
AtomFull header;
guint32 track_ID;
guint32 lengths;
/* array of entries */
ATOM_ARRAY (TFRAEntry) entries;
} AtomTFRA;
typedef struct _AtomMFRA
{
Atom header;
/* list of tfra */
GList *tfras;
} AtomMFRA;
/*
* Function to serialize an atom
*/
typedef guint64 (*AtomCopyDataFunc) (Atom *atom, guint8 **buffer, guint64 *size, guint64 *offset);
/*
* Releases memory allocated by an atom
*/
typedef guint64 (*AtomFreeFunc) (Atom *atom);
/*
* Some atoms might have many optional different kinds of child atoms, so this
* is useful for enabling generic handling of any atom.
* All we need are the two functions (copying it to an array
* for serialization and the memory releasing function).
*/
struct _AtomInfo
{
Atom *atom;
AtomCopyDataFunc copy_data_func;
AtomFreeFunc free_func;
};
guint64 atoms_get_current_qt_time (void);
guint64 atom_copy_data (Atom *atom, guint8 **buffer,
guint64 *size, guint64* offset);
AtomFTYP* atom_ftyp_new (AtomsContext *context, guint32 major,
guint32 version, GList *brands);
guint64 atom_ftyp_copy_data (AtomFTYP *ftyp, guint8 **buffer,
guint64 *size, guint64 *offset);
void atom_ftyp_free (AtomFTYP *ftyp);
AtomTRAK* atom_trak_new (AtomsContext *context);
void atom_trak_add_samples (AtomTRAK * trak, guint32 nsamples, guint32 delta,
guint32 size, guint64 chunk_offset, gboolean sync,
gint64 pts_offset);
void atom_trak_set_elst_entry (AtomTRAK * trak, gint index, guint32 duration,
guint32 media_time, guint32 rate);
void atom_trak_edts_clear (AtomTRAK * trak);
guint32 atom_trak_get_timescale (AtomTRAK *trak);
guint32 atom_trak_get_id (AtomTRAK * trak);
void atom_trak_set_constant_size_samples (AtomTRAK * trak, guint32 sample_size);
void atom_stbl_add_samples (AtomSTBL * stbl, guint32 nsamples,
guint32 delta, guint32 size,
guint64 chunk_offset, gboolean sync,
gint64 pts_offset);
void atom_stsc_add_new_entry (AtomSTSC * stsc,
guint32 first_chunk, guint32 nsamples);
AtomMOOV* atom_moov_new (AtomsContext *context);
void atom_moov_free (AtomMOOV *moov);
guint64 atom_moov_copy_data (AtomMOOV *atom, guint8 **buffer, guint64 *size, guint64* offset);
void atom_moov_update_timescale (AtomMOOV *moov, guint32 timescale);
void atom_moov_update_duration (AtomMOOV *moov);
void atom_moov_set_fragmented (AtomMOOV *moov, gboolean fragmented);
void atom_moov_chunks_set_offset (AtomMOOV *moov, guint32 offset);
void atom_moov_add_trak (AtomMOOV *moov, AtomTRAK *trak);
guint atom_moov_get_trak_count (AtomMOOV *moov);
guint atom_framerate_to_timescale (gint fps_n, gint fps_d);
guint64 atom_mvhd_copy_data (AtomMVHD * atom, guint8 ** buffer,
guint64 * size, guint64 * offset);
void atom_stco64_chunks_set_offset (AtomSTCO64 * stco64, guint32 offset);
guint64 atom_trak_copy_data (AtomTRAK * atom, guint8 ** buffer,
guint64 * size, guint64 * offset);
void atom_stbl_clear (AtomSTBL * stbl);
void atom_stbl_init (AtomSTBL * stbl);
guint64 atom_stss_copy_data (AtomSTSS *atom, guint8 **buffer,
guint64 *size, guint64* offset);
guint64 atom_stts_copy_data (AtomSTTS *atom, guint8 **buffer,
guint64 *size, guint64* offset);
guint64 atom_stsc_copy_data (AtomSTSC *atom, guint8 **buffer,
guint64 *size, guint64* offset);
guint64 atom_stsz_copy_data (AtomSTSZ *atom, guint8 **buffer,
guint64 *size, guint64* offset);
guint64 atom_ctts_copy_data (AtomCTTS *atom, guint8 **buffer,
guint64 *size, guint64* offset);
guint64 atom_svmi_copy_data (AtomSVMI *atom, guint8 **buffer,
guint64 *size, guint64* offset);
AtomSVMI * atom_svmi_new (guint8 stereoscopic_composition_type, gboolean is_left_first);
guint64 atom_stco64_copy_data (AtomSTCO64 *atom, guint8 **buffer,
guint64 *size, guint64* offset);
AtomMOOF* atom_moof_new (AtomsContext *context, guint32 sequence_number);
void atom_moof_free (AtomMOOF *moof);
guint64 atom_moof_copy_data (AtomMOOF *moof, guint8 **buffer, guint64 *size, guint64* offset);
AtomTRAF * atom_traf_new (AtomsContext * context, guint32 track_ID);
void atom_traf_free (AtomTRAF * traf);
void atom_traf_set_base_decode_time (AtomTRAF * traf, guint64 base_decode_time);
void atom_traf_add_samples (AtomTRAF * traf, guint32 delta,
guint32 size, gboolean sync, gint64 pts_offset,
gboolean sdtp_sync);
guint32 atom_traf_get_sample_num (AtomTRAF * traf);
void atom_moof_add_traf (AtomMOOF *moof, AtomTRAF *traf);
AtomMFRA* atom_mfra_new (AtomsContext *context);
void atom_mfra_free (AtomMFRA *mfra);
AtomTFRA* atom_tfra_new (AtomsContext *context, guint32 track_ID);
void atom_tfra_add_entry (AtomTFRA *tfra, guint64 dts, guint32 sample_num);
void atom_tfra_update_offset (AtomTFRA * tfra, guint64 offset);
void atom_mfra_add_tfra (AtomMFRA *mfra, AtomTFRA *tfra);
guint64 atom_mfra_copy_data (AtomMFRA *mfra, guint8 **buffer, guint64 *size, guint64* offset);
/* media sample description related helpers */
typedef struct
{
guint16 version;
guint32 fourcc;
guint width;
guint height;
guint depth;
guint frame_count;
gint color_table_id;
guint par_n;
guint par_d;
GstBuffer *codec_data;
} VisualSampleEntry;
typedef struct
{
guint32 fourcc;
guint version;
gint compression_id;
guint sample_rate;
guint channels;
guint sample_size;
guint bytes_per_packet;
guint samples_per_packet;
guint bytes_per_sample;
guint bytes_per_frame;
GstBuffer *codec_data;
} AudioSampleEntry;
typedef struct
{
guint32 fourcc;
guint8 font_face; /* bold=0x1, italic=0x2, underline=0x4 */
guint8 font_size;
guint32 foreground_color_rgba;
} SubtitleSampleEntry;
void subtitle_sample_entry_init (SubtitleSampleEntry * entry);
SampleTableEntryMP4A * atom_trak_set_audio_type (AtomTRAK * trak, AtomsContext * context,
AudioSampleEntry * entry, guint32 scale,
AtomInfo * ext, gint sample_size);
SampleTableEntryMP4V * atom_trak_set_video_type (AtomTRAK * trak, AtomsContext * context,
VisualSampleEntry * entry, guint32 rate,
GList * ext_atoms_list);
SampleTableEntryTX3G * atom_trak_set_subtitle_type (AtomTRAK * trak, AtomsContext * context,
SubtitleSampleEntry * entry);
SampleTableEntryTMCD *
atom_trak_set_timecode_type (AtomTRAK * trak, AtomsContext * context, guint trak_timescale, GstVideoTimeCode * tc);
SampleTableEntry * atom_trak_set_caption_type (AtomTRAK *trak, AtomsContext *context,
guint32 trak_timescale, guint32 caption_type);
void atom_trak_update_bitrates (AtomTRAK * trak, guint32 avg_bitrate,
guint32 max_bitrate);
void atom_trak_tx3g_update_dimension (AtomTRAK * trak, guint32 width,
guint32 height);
void sample_table_entry_add_ext_atom (SampleTableEntry * ste, AtomInfo * ext);
AtomInfo * build_codec_data_extension (guint32 fourcc, const GstBuffer * codec_data);
AtomInfo * build_mov_aac_extension (AtomTRAK * trak, const GstBuffer * codec_data,
guint32 avg_bitrate, guint32 max_bitrate);
AtomInfo * build_mov_alac_extension (const GstBuffer * codec_data);
AtomInfo * build_esds_extension (AtomTRAK * trak, guint8 object_type,
guint8 stream_type, const GstBuffer * codec_data,
guint32 avg_bitrate, guint32 max_bitrate);
AtomInfo * build_btrt_extension (guint32 buffer_size_db, guint32 avg_bitrate,
guint32 max_bitrate);
AtomInfo * build_jp2h_extension (gint width, gint height, const gchar *colorspace,
gint ncomp, const GValue * cmap_array,
const GValue * cdef_array);
AtomInfo * build_jp2x_extension (const GstBuffer * prefix);
AtomInfo * build_fiel_extension (GstVideoInterlaceMode mode, GstVideoFieldOrder order);
AtomInfo * build_colr_extension (const GstVideoColorimetry *colorimetry, gboolean is_mp4);
AtomInfo * build_clap_extension (gint width_n, gint width_d, gint height_n, gint height_d, gint h_off_n, gint h_off_d, gint v_off_n, gint v_off_d);
AtomInfo * build_tapt_extension (gint clef_width, gint clef_height, gint prof_width, gint prof_height, gint enof_width, gint enof_height);
AtomInfo * build_ac3_extension (guint8 fscod, guint8 bsid,
guint8 bsmod, guint8 acmod,
guint8 lfe_on, guint8 bitrate_code);
AtomInfo * build_opus_extension (guint32 rate, guint8 channels, guint8 mapping_family,
guint8 stream_count, guint8 coupled_count,
guint8 channel_mapping[256], guint16 pre_skip,
guint16 output_gain);
AtomInfo * build_amr_extension (void);
AtomInfo * build_h263_extension (void);
AtomInfo * build_gama_atom (gdouble gamma);
AtomInfo * build_SMI_atom (const GstBuffer *seqh);
AtomInfo * build_ima_adpcm_extension (gint channels, gint rate,
gint blocksize);
AtomInfo * build_uuid_xmp_atom (GstBuffer * xmp);
/*
* Meta tags functions
*/
void atom_udta_clear_tags (AtomUDTA *udta);
void atom_udta_add_str_tag (AtomUDTA *udta, guint32 fourcc, const gchar *value);
void atom_udta_add_uint_tag (AtomUDTA *udta, guint32 fourcc, guint32 flags,
guint32 value);
void atom_udta_add_tag (AtomUDTA *udta, guint32 fourcc, guint32 flags,
const guint8 * data, guint size);
void atom_udta_add_blob_tag (AtomUDTA *udta, guint8 *data, guint size);
void atom_udta_add_3gp_str_tag (AtomUDTA *udta, guint32 fourcc, const gchar * value);
void atom_udta_add_3gp_uint_tag (AtomUDTA *udta, guint32 fourcc, guint16 value);
void atom_udta_add_3gp_str_int_tag (AtomUDTA *udta, guint32 fourcc, const gchar * value,
gint16 ivalue);
void atom_udta_add_3gp_tag (AtomUDTA *udta, guint32 fourcc, guint8 * data,
guint size);
void atom_udta_add_xmp_tags (AtomUDTA *udta, GstBuffer * xmp);
AtomTREF * atom_tref_new (guint32 reftype);
void atom_tref_add_entry (AtomTREF * tref, guint32 sample);
#define GST_QT_MUX_DEFAULT_TAG_LANGUAGE "und" /* undefined/unknown */
guint16 language_code (const char * lang);
#endif /* __ATOMS_H__ */
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