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gstreamer/gst/qtmux/atoms.h
Arun Raghavan c28613d8db qtmux: Write 'btrt' atom for H.264 media if possible 
This writes out the optional 'btrt' atom (MPEG4BitrateBox) for H.264
media if either or both of average and maximum bitrate are available for
the stream.

https://bugzilla.gnome.org/show_bug.cgi?id=623678
2010-07-07 23:21:51 -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 _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);
/*
* 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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