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gstreamer/gst/qtmux/atoms.h
Thiago Santos 8047346898 qtmux: Follow xmp serialization guidelines closer 
qt and isom variants have different ways of serializing
xmp, follow these guidelines.

Those can be found in Adobe's xmp docs.
2010-09-15 22:07:05 -03:00

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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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, 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 "descriptors.h"
#include "properties.h"
#include "fourcc.h"
#include "ftypcc.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
} AtomsTreeFlavor;
typedef struct _AtomsContext
{
AtomsTreeFlavor flavor;
} AtomsContext;
AtomsContext* atoms_context_new (AtomsTreeFlavor flavor);
void atoms_context_free (AtomsContext *context);
#define METADATA_DATA_FLAG 0x0
#define METADATA_TEXT_FLAG 0x1
/* atom defs and functions */
/**
* 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;
} 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 _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
} SampleEntryKind;
typedef struct _SampleTableEntry
{
Atom header;
guint8 reserved[6];
guint16 data_reference_index;
/* sort 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 _SampleTableEntryMP4S
{
SampleTableEntry se;
AtomESDS es;
} SampleTableEntryMP4S;
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;
/*
* used for both STCO and CO64
* if used as STCO, entries should be truncated to use only 32bits
*/
typedef struct _AtomSTCO64
{
AtomFull header;
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;
} AtomCTTS;
typedef struct _AtomSTBL
{
Atom header;
AtomSTSD stsd;
AtomSTTS stts;
AtomSTSS stss;
AtomSTSC stsc;
AtomSTSZ stsz;
/* NULL if not present */
AtomCTTS *ctts;
AtomSTCO64 stco64;
} AtomSTBL;
typedef struct _AtomMINF
{
Atom header;
/* only (exactly) one of those must be present */
AtomVMHD *vmhd;
AtomSMHD *smhd;
AtomHMHD *hmhd;
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;
} AtomUDTA;
typedef struct _AtomTRAK
{
Atom header;
AtomTKHD tkhd;
AtomEDTS *edts;
AtomMDIA mdia;
/* some helper info for structural conformity checks */
gboolean is_video;
gboolean is_h264;
} AtomTRAK;
typedef struct _AtomMOOV
{
/* style */
AtomsContext context;
Atom header;
AtomMVHD mvhd;
/* list of AtomTRAK */
GList *traks;
AtomUDTA *udta;
} AtomMOOV;
typedef struct _AtomWAVE
{
Atom header;
/* list of AtomInfo */
GList *extension_atoms;
} AtomWAVE;
/*
* 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).
*/
typedef struct _AtomInfo
{
Atom *atom;
AtomCopyDataFunc copy_data_func;
AtomFreeFunc free_func;
} AtomInfo;
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,
gboolean do_pts, gint64 pts_offset);
void atom_trak_add_elst_entry (AtomTRAK * trak, guint32 duration,
guint32 media_time, guint32 rate);
guint32 atom_trak_get_timescale (AtomTRAK *trak);
void atom_stbl_add_samples (AtomSTBL * stbl, guint32 nsamples,
guint32 delta, guint32 size,
guint64 chunk_offset, gboolean sync,
gboolean do_pts, gint64 pts_offset);
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_64bits (AtomMOOV *moov, gboolean large_file);
void atom_moov_chunks_add_offset (AtomMOOV *moov, guint32 offset);
void atom_moov_add_trak (AtomMOOV *moov, AtomTRAK *trak);
guint64 atom_mvhd_copy_data (AtomMVHD * atom, guint8 ** buffer,
guint64 * size, guint64 * offset);
void atom_stco64_chunks_add_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_stco64_copy_data (AtomSTCO64 *atom, 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;
void atom_trak_set_audio_type (AtomTRAK * trak, AtomsContext * context,
AudioSampleEntry * entry, guint32 scale,
AtomInfo * ext, gint sample_size);
void atom_trak_set_video_type (AtomTRAK * trak, AtomsContext * context,
VisualSampleEntry * entry, guint32 rate,
GList * ext_atoms_list);
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 (AtomTRAK * trak, 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 (AtomTRAK * trak, gint width, gint height,
guint32 fourcc, gint ncomp,
const GValue * cmap_array,
const GValue * cdef_array);
AtomInfo * build_jp2x_extension (const GstBuffer * prefix);
AtomInfo * build_fiel_extension (gint fields);
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 (const GstTagList * taglist);
/*
* Meta tags functions
*/
void atom_moov_add_str_tag (AtomMOOV *moov, guint32 fourcc, const gchar *value);
void atom_moov_add_uint_tag (AtomMOOV *moov, guint32 fourcc, guint32 flags,
guint32 value);
void atom_moov_add_tag (AtomMOOV *moov, guint32 fourcc, guint32 flags,
const guint8 * data, guint size);
void atom_moov_add_blob_tag (AtomMOOV *moov, guint8 *data, guint size);
void atom_moov_add_3gp_str_tag (AtomMOOV * moov, guint32 fourcc, const gchar * value);
void atom_moov_add_3gp_uint_tag (AtomMOOV * moov, guint32 fourcc, guint16 value);
void atom_moov_add_3gp_str_int_tag (AtomMOOV * moov, guint32 fourcc, const gchar * value,
gint16 ivalue);
void atom_moov_add_3gp_tag (AtomMOOV * moov, guint32 fourcc, guint8 * data,
guint size);
void atom_moov_add_xmp_tags (AtomMOOV * moov, const GstTagList * tags);
#define GST_QT_MUX_DEFAULT_TAG_LANGUAGE "eng"
guint16 language_code (const char * lang);
#endif /* __ATOMS_H__ */
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