blob: 4ca69274b3914e433178a1015f439b189511776c [file] [log] [blame]
/* Quicktime muxer plugin for GStreamer
* Copyright (C) 2008-2010 Thiago Santos <thiagoss@embedded.ufcg.edu.br>
* Copyright (C) 2008 Mark Nauwelaerts <mnauw@users.sf.net>
*
* 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.
*/
#include "atoms.h"
#include <string.h>
#include <glib.h>
#include <gst/gst.h>
#include <gst/base/gstbytewriter.h>
#include <gst/tag/tag.h>
#include <gst/video/video.h>
/*
* Creates a new AtomsContext for the given flavor.
*/
AtomsContext *
atoms_context_new (AtomsTreeFlavor flavor)
{
AtomsContext *context = g_new0 (AtomsContext, 1);
context->flavor = flavor;
return context;
}
/*
* Frees an AtomsContext and all memory associated with it
*/
void
atoms_context_free (AtomsContext * context)
{
g_free (context);
}
/* -- creation, initialization, clear and free functions -- */
#define SECS_PER_DAY (24 * 60 * 60)
#define LEAP_YEARS_FROM_1904_TO_1970 17
guint64
atoms_get_current_qt_time (void)
{
GTimeVal timeval;
g_get_current_time (&timeval);
/* FIXME this should use UTC coordinated time */
return timeval.tv_sec + (((1970 - 1904) * (guint64) 365) +
LEAP_YEARS_FROM_1904_TO_1970) * SECS_PER_DAY;
}
static void
common_time_info_init (TimeInfo * ti)
{
ti->creation_time = ti->modification_time = atoms_get_current_qt_time ();
ti->timescale = 0;
ti->duration = 0;
}
static void
atom_header_set (Atom * header, guint32 fourcc, gint32 size, gint64 ext_size)
{
header->type = fourcc;
header->size = size;
header->extended_size = ext_size;
}
static void
atom_clear (Atom * atom)
{
}
static void
atom_full_init (AtomFull * full, guint32 fourcc, gint32 size, gint64 ext_size,
guint8 version, guint8 flags[3])
{
atom_header_set (&(full->header), fourcc, size, ext_size);
full->version = version;
full->flags[0] = flags[0];
full->flags[1] = flags[1];
full->flags[2] = flags[2];
}
static void
atom_full_clear (AtomFull * full)
{
atom_clear (&full->header);
}
static void
atom_full_free (AtomFull * full)
{
atom_full_clear (full);
g_free (full);
}
static guint32
atom_full_get_flags_as_uint (AtomFull * full)
{
return full->flags[0] << 16 | full->flags[1] << 8 | full->flags[2];
}
static void
atom_full_set_flags_as_uint (AtomFull * full, guint32 flags_as_uint)
{
full->flags[2] = flags_as_uint & 0xFF;
full->flags[1] = (flags_as_uint & 0xFF00) >> 8;
full->flags[0] = (flags_as_uint & 0xFF0000) >> 16;
}
static AtomInfo *
build_atom_info_wrapper (Atom * atom, gpointer copy_func, gpointer free_func)
{
AtomInfo *info = NULL;
if (atom) {
info = g_new0 (AtomInfo, 1);
info->atom = atom;
info->copy_data_func = copy_func;
info->free_func = free_func;
}
return info;
}
static GList *
atom_info_list_prepend_atom (GList * ai, Atom * atom,
AtomCopyDataFunc copy_func, AtomFreeFunc free_func)
{
if (atom)
return g_list_prepend (ai,
build_atom_info_wrapper (atom, copy_func, free_func));
else
return ai;
}
static void
atom_info_list_free (GList * ai)
{
while (ai) {
AtomInfo *info = (AtomInfo *) ai->data;
info->free_func (info->atom);
g_free (info);
ai = g_list_delete_link (ai, ai);
}
}
static AtomData *
atom_data_new (guint32 fourcc)
{
AtomData *data = g_new0 (AtomData, 1);
atom_header_set (&data->header, fourcc, 0, 0);
return data;
}
static void
atom_data_alloc_mem (AtomData * data, guint32 size)
{
g_free (data->data);
data->data = g_new0 (guint8, size);
data->datalen = size;
}
static AtomData *
atom_data_new_from_data (guint32 fourcc, const guint8 * mem, gsize size)
{
AtomData *data = atom_data_new (fourcc);
atom_data_alloc_mem (data, size);
memcpy (data->data, mem, size);
return data;
}
static AtomData *
atom_data_new_from_gst_buffer (guint32 fourcc, const GstBuffer * buf)
{
AtomData *data = atom_data_new (fourcc);
gsize size = gst_buffer_get_size ((GstBuffer *) buf);
atom_data_alloc_mem (data, size);
gst_buffer_extract ((GstBuffer *) buf, 0, data->data, size);
return data;
}
static void
atom_data_free (AtomData * data)
{
atom_clear (&data->header);
g_free (data->data);
g_free (data);
}
static AtomUUID *
atom_uuid_new (void)
{
AtomUUID *uuid = g_new0 (AtomUUID, 1);
atom_header_set (&uuid->header, FOURCC_uuid, 0, 0);
return uuid;
}
static void
atom_uuid_free (AtomUUID * data)
{
atom_clear (&data->header);
g_free (data->data);
g_free (data);
}
static void
atom_ftyp_init (AtomFTYP * ftyp, guint32 major, guint32 version, GList * brands)
{
gint index;
GList *it = NULL;
atom_header_set (&ftyp->header, FOURCC_ftyp, 16, 0);
ftyp->major_brand = major;
ftyp->version = version;
/* always include major brand as compatible brand */
ftyp->compatible_brands_size = g_list_length (brands) + 1;
ftyp->compatible_brands = g_new (guint32, ftyp->compatible_brands_size);
ftyp->compatible_brands[0] = major;
index = 1;
for (it = brands; it != NULL; it = g_list_next (it)) {
ftyp->compatible_brands[index++] = GPOINTER_TO_UINT (it->data);
}
}
AtomFTYP *
atom_ftyp_new (AtomsContext * context, guint32 major, guint32 version,
GList * brands)
{
AtomFTYP *ftyp = g_new0 (AtomFTYP, 1);
atom_ftyp_init (ftyp, major, version, brands);
return ftyp;
}
void
atom_ftyp_free (AtomFTYP * ftyp)
{
atom_clear (&ftyp->header);
g_free (ftyp->compatible_brands);
ftyp->compatible_brands = NULL;
g_free (ftyp);
}
static void
atom_esds_init (AtomESDS * esds)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&esds->header, FOURCC_esds, 0, 0, 0, flags);
desc_es_init (&esds->es);
}
static AtomESDS *
atom_esds_new (void)
{
AtomESDS *esds = g_new0 (AtomESDS, 1);
atom_esds_init (esds);
return esds;
}
static void
atom_esds_free (AtomESDS * esds)
{
atom_full_clear (&esds->header);
desc_es_descriptor_clear (&esds->es);
g_free (esds);
}
static AtomFRMA *
atom_frma_new (void)
{
AtomFRMA *frma = g_new0 (AtomFRMA, 1);
atom_header_set (&frma->header, FOURCC_frma, 0, 0);
return frma;
}
static void
atom_frma_free (AtomFRMA * frma)
{
atom_clear (&frma->header);
g_free (frma);
}
static AtomWAVE *
atom_wave_new (void)
{
AtomWAVE *wave = g_new0 (AtomWAVE, 1);
atom_header_set (&wave->header, FOURCC_wave, 0, 0);
return wave;
}
static void
atom_wave_free (AtomWAVE * wave)
{
atom_clear (&wave->header);
atom_info_list_free (wave->extension_atoms);
g_free (wave);
}
static void
atom_elst_init (AtomELST * elst)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&elst->header, FOURCC_elst, 0, 0, 0, flags);
elst->entries = 0;
}
static void
atom_elst_clear (AtomELST * elst)
{
GSList *walker;
atom_full_clear (&elst->header);
walker = elst->entries;
while (walker) {
g_free ((EditListEntry *) walker->data);
walker = g_slist_next (walker);
}
g_slist_free (elst->entries);
}
static void
atom_edts_init (AtomEDTS * edts)
{
atom_header_set (&edts->header, FOURCC_edts, 0, 0);
atom_elst_init (&edts->elst);
}
static void
atom_edts_clear (AtomEDTS * edts)
{
atom_clear (&edts->header);
atom_elst_clear (&edts->elst);
}
static AtomEDTS *
atom_edts_new (void)
{
AtomEDTS *edts = g_new0 (AtomEDTS, 1);
atom_edts_init (edts);
return edts;
}
static void
atom_edts_free (AtomEDTS * edts)
{
atom_edts_clear (edts);
g_free (edts);
}
static void
atom_tcmi_init (AtomTCMI * tcmi)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&tcmi->header, FOURCC_tcmi, 0, 0, 0, flags);
}
static void
atom_tcmi_clear (AtomTCMI * tcmi)
{
atom_full_clear (&tcmi->header);
tcmi->text_font = 0;
tcmi->text_face = 0;
tcmi->text_size = 0;
tcmi->text_color[0] = 0;
tcmi->text_color[1] = 0;
tcmi->text_color[2] = 0;
tcmi->bg_color[0] = 0;
tcmi->bg_color[1] = 0;
tcmi->bg_color[2] = 0;
g_free (tcmi->font_name);
tcmi->font_name = NULL;
}
static void
atom_tmcd_init (AtomTMCD * tmcd)
{
atom_header_set (&tmcd->header, FOURCC_tmcd, 0, 0);
atom_tcmi_init (&tmcd->tcmi);
}
static void
atom_tmcd_clear (AtomTMCD * tmcd)
{
atom_clear (&tmcd->header);
atom_tcmi_clear (&tmcd->tcmi);
}
static void
atom_gmin_init (AtomGMIN * gmin)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&gmin->header, FOURCC_gmin, 0, 0, 0, flags);
}
static void
atom_gmin_clear (AtomGMIN * gmin)
{
atom_full_clear (&gmin->header);
gmin->graphics_mode = 0;
gmin->opcolor[0] = 0;
gmin->opcolor[1] = 0;
gmin->opcolor[2] = 0;
gmin->balance = 0;
gmin->reserved = 0;
}
static void
atom_gmhd_init (AtomGMHD * gmhd)
{
atom_header_set (&gmhd->header, FOURCC_gmhd, 0, 0);
atom_gmin_init (&gmhd->gmin);
atom_tmcd_init (&gmhd->tmcd);
}
static void
atom_gmhd_clear (AtomGMHD * gmhd)
{
atom_clear (&gmhd->header);
atom_gmin_clear (&gmhd->gmin);
atom_tmcd_clear (&gmhd->tmcd);
}
static AtomGMHD *
atom_gmhd_new (void)
{
AtomGMHD *gmhd = g_new0 (AtomGMHD, 1);
atom_gmhd_init (gmhd);
return gmhd;
}
static void
atom_gmhd_free (AtomGMHD * gmhd)
{
atom_gmhd_clear (gmhd);
g_free (gmhd);
}
static void
atom_sample_entry_init (SampleTableEntry * se, guint32 type)
{
atom_header_set (&se->header, type, 0, 0);
memset (se->reserved, 0, sizeof (guint8) * 6);
se->data_reference_index = 0;
}
static void
atom_sample_entry_free (SampleTableEntry * se)
{
atom_clear (&se->header);
}
static void
sample_entry_mp4a_init (SampleTableEntryMP4A * mp4a)
{
atom_sample_entry_init (&mp4a->se, FOURCC_mp4a);
mp4a->version = 0;
mp4a->revision_level = 0;
mp4a->vendor = 0;
mp4a->channels = 2;
mp4a->sample_size = 16;
mp4a->compression_id = 0;
mp4a->packet_size = 0;
mp4a->sample_rate = 0;
/* following only used if version is 1 */
mp4a->samples_per_packet = 0;
mp4a->bytes_per_packet = 0;
mp4a->bytes_per_frame = 0;
mp4a->bytes_per_sample = 0;
mp4a->extension_atoms = NULL;
}
static SampleTableEntryMP4A *
sample_entry_mp4a_new (void)
{
SampleTableEntryMP4A *mp4a = g_new0 (SampleTableEntryMP4A, 1);
sample_entry_mp4a_init (mp4a);
return mp4a;
}
static void
sample_entry_mp4a_free (SampleTableEntryMP4A * mp4a)
{
atom_sample_entry_free (&mp4a->se);
atom_info_list_free (mp4a->extension_atoms);
g_free (mp4a);
}
static void
sample_entry_tmcd_init (SampleTableEntryTMCD * tmcd)
{
atom_sample_entry_init (&tmcd->se, FOURCC_tmcd);
tmcd->tc_flags = 0;
tmcd->timescale = 0;
tmcd->frame_duration = 0;
tmcd->n_frames = 0;
tmcd->name.language_code = 0;
g_free (tmcd->name.name);
tmcd->name.name = NULL;
}
static SampleTableEntryTMCD *
sample_entry_tmcd_new (void)
{
SampleTableEntryTMCD *tmcd = g_new0 (SampleTableEntryTMCD, 1);
sample_entry_tmcd_init (tmcd);
return tmcd;
}
static void
sample_entry_tmcd_free (SampleTableEntryTMCD * tmcd)
{
atom_sample_entry_free (&tmcd->se);
g_free (tmcd->name.name);
g_free (tmcd);
}
static void
sample_entry_mp4v_init (SampleTableEntryMP4V * mp4v, AtomsContext * context)
{
atom_sample_entry_init (&mp4v->se, FOURCC_mp4v);
mp4v->version = 0;
mp4v->revision_level = 0;
mp4v->vendor = 0;
mp4v->temporal_quality = 0;
mp4v->spatial_quality = 0;
/* qt and ISO base media do not contradict, and examples agree */
mp4v->horizontal_resolution = 0x00480000;
mp4v->vertical_resolution = 0x00480000;
mp4v->datasize = 0;
mp4v->frame_count = 1;
memset (mp4v->compressor, 0, sizeof (guint8) * 32);
mp4v->depth = 0;
mp4v->color_table_id = 0;
mp4v->extension_atoms = NULL;
}
static void
sample_entry_mp4v_free (SampleTableEntryMP4V * mp4v)
{
atom_sample_entry_free (&mp4v->se);
atom_info_list_free (mp4v->extension_atoms);
g_free (mp4v);
}
static SampleTableEntryMP4V *
sample_entry_mp4v_new (AtomsContext * context)
{
SampleTableEntryMP4V *mp4v = g_new0 (SampleTableEntryMP4V, 1);
sample_entry_mp4v_init (mp4v, context);
return mp4v;
}
static void
sample_entry_tx3g_init (SampleTableEntryTX3G * tx3g)
{
atom_sample_entry_init (&tx3g->se, FOURCC_tx3g);
tx3g->display_flags = 0;
tx3g->font_id = 1; /* must be 1 as there is a single font */
tx3g->font_face = 0;
tx3g->foreground_color_rgba = 0xFFFFFFFF; /* white, opaque */
/* can't set this now */
tx3g->default_text_box = 0;
tx3g->font_size = 0;
}
static void
sample_entry_tx3g_free (SampleTableEntryTX3G * tx3g)
{
atom_sample_entry_free (&tx3g->se);
g_free (tx3g);
}
static SampleTableEntryTX3G *
sample_entry_tx3g_new (void)
{
SampleTableEntryTX3G *tx3g = g_new0 (SampleTableEntryTX3G, 1);
sample_entry_tx3g_init (tx3g);
return tx3g;
}
static void
atom_stsd_init (AtomSTSD * stsd)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&stsd->header, FOURCC_stsd, 0, 0, 0, flags);
stsd->entries = NULL;
stsd->n_entries = 0;
}
static void
atom_stsd_remove_entries (AtomSTSD * stsd)
{
GList *walker;
walker = stsd->entries;
while (walker) {
GList *aux = walker;
SampleTableEntry *se = (SampleTableEntry *) aux->data;
walker = g_list_next (walker);
stsd->entries = g_list_remove_link (stsd->entries, aux);
switch (se->kind) {
case AUDIO:
sample_entry_mp4a_free ((SampleTableEntryMP4A *) se);
break;
case VIDEO:
sample_entry_mp4v_free ((SampleTableEntryMP4V *) se);
break;
case SUBTITLE:
sample_entry_tx3g_free ((SampleTableEntryTX3G *) se);
break;
case TIMECODE:
sample_entry_tmcd_free ((SampleTableEntryTMCD *) se);
break;
default:
/* best possible cleanup */
atom_sample_entry_free (se);
}
g_list_free (aux);
}
stsd->n_entries = 0;
}
static void
atom_stsd_clear (AtomSTSD * stsd)
{
atom_stsd_remove_entries (stsd);
atom_full_clear (&stsd->header);
}
static void
atom_ctts_init (AtomCTTS * ctts)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&ctts->header, FOURCC_ctts, 0, 0, 0, flags);
atom_array_init (&ctts->entries, 128);
ctts->do_pts = FALSE;
}
static AtomCTTS *
atom_ctts_new (void)
{
AtomCTTS *ctts = g_new0 (AtomCTTS, 1);
atom_ctts_init (ctts);
return ctts;
}
static void
atom_ctts_free (AtomCTTS * ctts)
{
atom_full_clear (&ctts->header);
atom_array_clear (&ctts->entries);
g_free (ctts);
}
static void
atom_svmi_init (AtomSVMI * svmi)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&svmi->header, FOURCC_svmi, 0, 0, 0, flags);
svmi->stereoscopic_composition_type = 0x00;
svmi->is_left_first = FALSE;
}
AtomSVMI *
atom_svmi_new (guint8 stereoscopic_composition_type, gboolean is_left_first)
{
AtomSVMI *svmi = g_new0 (AtomSVMI, 1);
atom_svmi_init (svmi);
svmi->stereoscopic_composition_type = stereoscopic_composition_type;
svmi->is_left_first = is_left_first;
return svmi;
}
static void
atom_svmi_free (AtomSVMI * svmi)
{
g_free (svmi);
}
static void
atom_stts_init (AtomSTTS * stts)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&stts->header, FOURCC_stts, 0, 0, 0, flags);
atom_array_init (&stts->entries, 512);
}
static void
atom_stts_clear (AtomSTTS * stts)
{
atom_full_clear (&stts->header);
atom_array_clear (&stts->entries);
}
static void
atom_stsz_init (AtomSTSZ * stsz)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&stsz->header, FOURCC_stsz, 0, 0, 0, flags);
atom_array_init (&stsz->entries, 1024);
stsz->sample_size = 0;
stsz->table_size = 0;
}
static void
atom_stsz_clear (AtomSTSZ * stsz)
{
atom_full_clear (&stsz->header);
atom_array_clear (&stsz->entries);
stsz->table_size = 0;
}
static void
atom_stsc_init (AtomSTSC * stsc)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&stsc->header, FOURCC_stsc, 0, 0, 0, flags);
atom_array_init (&stsc->entries, 128);
}
static void
atom_stsc_clear (AtomSTSC * stsc)
{
atom_full_clear (&stsc->header);
atom_array_clear (&stsc->entries);
}
static void
atom_co64_init (AtomSTCO64 * co64)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&co64->header, FOURCC_stco, 0, 0, 0, flags);
atom_array_init (&co64->entries, 256);
}
static void
atom_stco64_clear (AtomSTCO64 * stco64)
{
atom_full_clear (&stco64->header);
atom_array_clear (&stco64->entries);
}
static void
atom_stss_init (AtomSTSS * stss)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&stss->header, FOURCC_stss, 0, 0, 0, flags);
atom_array_init (&stss->entries, 128);
}
static void
atom_stss_clear (AtomSTSS * stss)
{
atom_full_clear (&stss->header);
atom_array_clear (&stss->entries);
}
void
atom_stbl_init (AtomSTBL * stbl)
{
atom_header_set (&stbl->header, FOURCC_stbl, 0, 0);
atom_stts_init (&stbl->stts);
atom_stss_init (&stbl->stss);
atom_stsd_init (&stbl->stsd);
atom_stsz_init (&stbl->stsz);
atom_stsc_init (&stbl->stsc);
stbl->ctts = NULL;
stbl->svmi = NULL;
atom_co64_init (&stbl->stco64);
}
void
atom_stbl_clear (AtomSTBL * stbl)
{
atom_clear (&stbl->header);
atom_stsd_clear (&stbl->stsd);
atom_stts_clear (&stbl->stts);
atom_stss_clear (&stbl->stss);
atom_stsc_clear (&stbl->stsc);
atom_stsz_clear (&stbl->stsz);
if (stbl->ctts) {
atom_ctts_free (stbl->ctts);
}
if (stbl->svmi) {
atom_svmi_free (stbl->svmi);
}
atom_stco64_clear (&stbl->stco64);
}
static void
atom_vmhd_init (AtomVMHD * vmhd, AtomsContext * context)
{
guint8 flags[3] = { 0, 0, 1 };
atom_full_init (&vmhd->header, FOURCC_vmhd, 0, 0, 0, flags);
vmhd->graphics_mode = 0x0;
memset (vmhd->opcolor, 0, sizeof (guint16) * 3);
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
vmhd->graphics_mode = 0x40;
vmhd->opcolor[0] = 32768;
vmhd->opcolor[1] = 32768;
vmhd->opcolor[2] = 32768;
}
}
static AtomVMHD *
atom_vmhd_new (AtomsContext * context)
{
AtomVMHD *vmhd = g_new0 (AtomVMHD, 1);
atom_vmhd_init (vmhd, context);
return vmhd;
}
static void
atom_vmhd_free (AtomVMHD * vmhd)
{
atom_full_clear (&vmhd->header);
g_free (vmhd);
}
static void
atom_smhd_init (AtomSMHD * smhd)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&smhd->header, FOURCC_smhd, 0, 0, 0, flags);
smhd->balance = 0;
smhd->reserved = 0;
}
static AtomSMHD *
atom_smhd_new (void)
{
AtomSMHD *smhd = g_new0 (AtomSMHD, 1);
atom_smhd_init (smhd);
return smhd;
}
static void
atom_smhd_free (AtomSMHD * smhd)
{
atom_full_clear (&smhd->header);
g_free (smhd);
}
static void
atom_hmhd_free (AtomHMHD * hmhd)
{
atom_full_clear (&hmhd->header);
g_free (hmhd);
}
static void
atom_hdlr_init (AtomHDLR * hdlr, AtomsContext * context)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&hdlr->header, FOURCC_hdlr, 0, 0, 0, flags);
hdlr->component_type = 0;
hdlr->handler_type = 0;
hdlr->manufacturer = 0;
hdlr->flags = 0;
hdlr->flags_mask = 0;
hdlr->name = g_strdup ("");
/* Store the flavor to know how to serialize the 'name' string */
hdlr->flavor = context->flavor;
}
static AtomHDLR *
atom_hdlr_new (AtomsContext * context)
{
AtomHDLR *hdlr = g_new0 (AtomHDLR, 1);
atom_hdlr_init (hdlr, context);
return hdlr;
}
static void
atom_hdlr_clear (AtomHDLR * hdlr)
{
atom_full_clear (&hdlr->header);
if (hdlr->name) {
g_free (hdlr->name);
hdlr->name = NULL;
}
}
static void
atom_hdlr_free (AtomHDLR * hdlr)
{
atom_hdlr_clear (hdlr);
g_free (hdlr);
}
static void
atom_url_init (AtomURL * url)
{
guint8 flags[3] = { 0, 0, 1 };
atom_full_init (&url->header, FOURCC_url_, 0, 0, 0, flags);
url->location = NULL;
}
static void
atom_url_free (AtomURL * url)
{
atom_full_clear (&url->header);
if (url->location) {
g_free (url->location);
url->location = NULL;
}
g_free (url);
}
static AtomURL *
atom_url_new (void)
{
AtomURL *url = g_new0 (AtomURL, 1);
atom_url_init (url);
return url;
}
static AtomFull *
atom_alis_new (void)
{
guint8 flags[3] = { 0, 0, 1 };
AtomFull *alis = g_new0 (AtomFull, 1);
atom_full_init (alis, FOURCC_alis, 0, 0, 0, flags);
return alis;
}
static void
atom_dref_init (AtomDREF * dref, AtomsContext * context)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&dref->header, FOURCC_dref, 0, 0, 0, flags);
/* in either case, alis or url init arranges to set self-contained flag */
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
/* alis dref for qt */
AtomFull *alis = atom_alis_new ();
dref->entries = g_list_append (dref->entries, alis);
} else {
/* url for iso spec, as 'alis' not specified there */
AtomURL *url = atom_url_new ();
dref->entries = g_list_append (dref->entries, url);
}
}
static void
atom_dref_clear (AtomDREF * dref)
{
GList *walker;
atom_full_clear (&dref->header);
walker = dref->entries;
while (walker) {
GList *aux = walker;
Atom *atom = (Atom *) aux->data;
walker = g_list_next (walker);
dref->entries = g_list_remove_link (dref->entries, aux);
switch (atom->type) {
case FOURCC_alis:
atom_full_free ((AtomFull *) atom);
break;
case FOURCC_url_:
atom_url_free ((AtomURL *) atom);
break;
default:
/* we do nothing, better leak than crash */
break;
}
g_list_free (aux);
}
}
static void
atom_dinf_init (AtomDINF * dinf, AtomsContext * context)
{
atom_header_set (&dinf->header, FOURCC_dinf, 0, 0);
atom_dref_init (&dinf->dref, context);
}
static void
atom_dinf_clear (AtomDINF * dinf)
{
atom_clear (&dinf->header);
atom_dref_clear (&dinf->dref);
}
static void
atom_minf_init (AtomMINF * minf, AtomsContext * context)
{
atom_header_set (&minf->header, FOURCC_minf, 0, 0);
minf->vmhd = NULL;
minf->smhd = NULL;
minf->hmhd = NULL;
minf->gmhd = NULL;
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
minf->hdlr = atom_hdlr_new (context);
minf->hdlr->component_type = FOURCC_dhlr;
minf->hdlr->handler_type = FOURCC_alis;
} else {
minf->hdlr = NULL;
}
atom_dinf_init (&minf->dinf, context);
atom_stbl_init (&minf->stbl);
}
static void
atom_minf_clear_handlers (AtomMINF * minf)
{
if (minf->vmhd) {
atom_vmhd_free (minf->vmhd);
minf->vmhd = NULL;
}
if (minf->smhd) {
atom_smhd_free (minf->smhd);
minf->smhd = NULL;
}
if (minf->hmhd) {
atom_hmhd_free (minf->hmhd);
minf->hmhd = NULL;
}
if (minf->gmhd) {
atom_gmhd_free (minf->gmhd);
minf->gmhd = NULL;
}
}
static void
atom_minf_clear (AtomMINF * minf)
{
atom_clear (&minf->header);
atom_minf_clear_handlers (minf);
if (minf->hdlr) {
atom_hdlr_free (minf->hdlr);
}
atom_dinf_clear (&minf->dinf);
atom_stbl_clear (&minf->stbl);
}
static void
atom_mdhd_init (AtomMDHD * mdhd)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&mdhd->header, FOURCC_mdhd, 0, 0, 0, flags);
common_time_info_init (&mdhd->time_info);
/* tempting as it may be to simply 0-initialize,
* that will have the demuxer (correctly) come up with 'eng' as language
* so explicitly specify undefined instead */
mdhd->language_code =
('u' - 0x60) * 0x400 + ('n' - 0x60) * 0x20 + ('d' - 0x60);
mdhd->quality = 0;
}
static void
atom_mdhd_clear (AtomMDHD * mdhd)
{
atom_full_clear (&mdhd->header);
}
static void
atom_mdia_init (AtomMDIA * mdia, AtomsContext * context)
{
atom_header_set (&mdia->header, FOURCC_mdia, 0, 0);
atom_mdhd_init (&mdia->mdhd);
atom_hdlr_init (&mdia->hdlr, context);
atom_minf_init (&mdia->minf, context);
}
static void
atom_mdia_clear (AtomMDIA * mdia)
{
atom_clear (&mdia->header);
atom_mdhd_clear (&mdia->mdhd);
atom_hdlr_clear (&mdia->hdlr);
atom_minf_clear (&mdia->minf);
}
static void
atom_tkhd_init (AtomTKHD * tkhd, AtomsContext * context)
{
/*
* flags info
* 1 -> track enabled
* 2 -> track in movie
* 4 -> track in preview
*/
guint8 flags[3] = { 0, 0, 7 };
atom_full_init (&tkhd->header, FOURCC_tkhd, 0, 0, 0, flags);
tkhd->creation_time = tkhd->modification_time = atoms_get_current_qt_time ();
tkhd->duration = 0;
tkhd->track_ID = 0;
tkhd->reserved = 0;
tkhd->reserved2[0] = tkhd->reserved2[1] = 0;
tkhd->layer = 0;
tkhd->alternate_group = 0;
tkhd->volume = 0;
tkhd->reserved3 = 0;
memset (tkhd->matrix, 0, sizeof (guint32) * 9);
tkhd->matrix[0] = 1 << 16;
tkhd->matrix[4] = 1 << 16;
tkhd->matrix[8] = 16384 << 16;
tkhd->width = 0;
tkhd->height = 0;
}
static void
atom_tkhd_clear (AtomTKHD * tkhd)
{
atom_full_clear (&tkhd->header);
}
static void
atom_ilst_init (AtomILST * ilst)
{
atom_header_set (&ilst->header, FOURCC_ilst, 0, 0);
ilst->entries = NULL;
}
static AtomILST *
atom_ilst_new (void)
{
AtomILST *ilst = g_new0 (AtomILST, 1);
atom_ilst_init (ilst);
return ilst;
}
static void
atom_ilst_free (AtomILST * ilst)
{
if (ilst->entries)
atom_info_list_free (ilst->entries);
atom_clear (&ilst->header);
g_free (ilst);
}
static void
atom_meta_init (AtomMETA * meta, AtomsContext * context)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&meta->header, FOURCC_meta, 0, 0, 0, flags);
atom_hdlr_init (&meta->hdlr, context);
/* FIXME (ISOM says this is always 0) */
meta->hdlr.component_type = FOURCC_mhlr;
meta->hdlr.handler_type = FOURCC_mdir;
meta->ilst = NULL;
}
static AtomMETA *
atom_meta_new (AtomsContext * context)
{
AtomMETA *meta = g_new0 (AtomMETA, 1);
atom_meta_init (meta, context);
return meta;
}
static void
atom_meta_free (AtomMETA * meta)
{
atom_full_clear (&meta->header);
atom_hdlr_clear (&meta->hdlr);
if (meta->ilst)
atom_ilst_free (meta->ilst);
meta->ilst = NULL;
g_free (meta);
}
static void
atom_udta_init_metatags (AtomUDTA * udta, AtomsContext * context)
{
if (context->flavor != ATOMS_TREE_FLAVOR_3GP) {
if (!udta->meta) {
udta->meta = atom_meta_new (context);
}
if (!udta->meta->ilst) {
udta->meta->ilst = atom_ilst_new ();
}
}
}
static void
atom_udta_init (AtomUDTA * udta, AtomsContext * context)
{
atom_header_set (&udta->header, FOURCC_udta, 0, 0);
udta->meta = NULL;
udta->context = context;
atom_udta_init_metatags (udta, context);
}
static void
atom_udta_clear (AtomUDTA * udta)
{
atom_clear (&udta->header);
if (udta->meta)
atom_meta_free (udta->meta);
udta->meta = NULL;
if (udta->entries)
atom_info_list_free (udta->entries);
}
static void
atom_tref_init (AtomTREF * tref, guint32 reftype)
{
atom_header_set (&tref->header, FOURCC_tref, 0, 0);
tref->reftype = reftype;
atom_array_init (&tref->entries, 128);
}
static void
atom_tref_clear (AtomTREF * tref)
{
atom_clear (&tref->header);
tref->reftype = 0;
atom_array_clear (&tref->entries);
}
AtomTREF *
atom_tref_new (guint32 reftype)
{
AtomTREF *tref;
tref = g_new0 (AtomTREF, 1);
atom_tref_init (tref, reftype);
return tref;
}
static void
atom_tref_free (AtomTREF * tref)
{
atom_tref_clear (tref);
g_free (tref);
}
/* Clear added tags, but keep the context/flavor the same */
void
atom_udta_clear_tags (AtomUDTA * udta)
{
if (udta->entries) {
atom_info_list_free (udta->entries);
udta->entries = NULL;
}
if (udta->meta && udta->meta->ilst->entries) {
atom_info_list_free (udta->meta->ilst->entries);
udta->meta->ilst->entries = NULL;
}
}
static void
atom_tag_data_init (AtomTagData * data)
{
guint8 flags[] = { 0, 0, 0 };
atom_full_init (&data->header, FOURCC_data, 0, 0, 0, flags);
}
static void
atom_tag_data_clear (AtomTagData * data)
{
atom_full_clear (&data->header);
g_free (data->data);
data->datalen = 0;
}
/*
* Fourcc is the tag fourcc
* flags will be truncated to 24bits
*/
static AtomTag *
atom_tag_new (guint32 fourcc, guint32 flags_as_uint)
{
AtomTag *tag = g_new0 (AtomTag, 1);
tag->header.type = fourcc;
atom_tag_data_init (&tag->data);
atom_full_set_flags_as_uint (&tag->data.header, flags_as_uint);
return tag;
}
static void
atom_tag_free (AtomTag * tag)
{
atom_clear (&tag->header);
atom_tag_data_clear (&tag->data);
g_free (tag);
}
static void
atom_mvhd_init (AtomMVHD * mvhd)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&(mvhd->header), FOURCC_mvhd, sizeof (AtomMVHD), 0, 0, flags);
common_time_info_init (&mvhd->time_info);
mvhd->prefered_rate = 1 << 16;
mvhd->volume = 1 << 8;
mvhd->reserved3 = 0;
memset (mvhd->reserved4, 0, sizeof (guint32[2]));
memset (mvhd->matrix, 0, sizeof (guint32[9]));
mvhd->matrix[0] = 1 << 16;
mvhd->matrix[4] = 1 << 16;
mvhd->matrix[8] = 16384 << 16;
mvhd->preview_time = 0;
mvhd->preview_duration = 0;
mvhd->poster_time = 0;
mvhd->selection_time = 0;
mvhd->selection_duration = 0;
mvhd->current_time = 0;
mvhd->next_track_id = 1;
}
static void
atom_mvhd_clear (AtomMVHD * mvhd)
{
atom_full_clear (&mvhd->header);
}
static void
atom_mehd_init (AtomMEHD * mehd)
{
guint8 flags[3] = { 0, 0, 0 };
atom_full_init (&mehd->header, FOURCC_mehd, 0, 0, 1, flags);
mehd->fragment_duration = 0;
}
static void
atom_mvex_init (AtomMVEX * mvex)
{
atom_header_set (&mvex->header, FOURCC_mvex, 0, 0);
atom_mehd_init (&mvex->mehd);
mvex->trexs = NULL;
}
static void
atom_trak_init (AtomTRAK * trak, AtomsContext * context)
{
atom_header_set (&trak->header, FOURCC_trak, 0, 0);
atom_tkhd_init (&trak->tkhd, context);
trak->context = context;
atom_udta_init (&trak->udta, context);
trak->edts = NULL;
atom_mdia_init (&trak->mdia, context);
trak->tref = NULL;
}
AtomTRAK *
atom_trak_new (AtomsContext * context)
{
AtomTRAK *trak = g_new0 (AtomTRAK, 1);
atom_trak_init (trak, context);
return trak;
}
static void
atom_trak_clear (AtomTRAK * trak)
{
atom_clear (&trak->header);
atom_tkhd_clear (&trak->tkhd);
if (trak->edts)
atom_edts_free (trak->edts);
atom_udta_clear (&trak->udta);
atom_mdia_clear (&trak->mdia);
if (trak->tref)
atom_tref_free (trak->tref);
}
static void
atom_trak_free (AtomTRAK * trak)
{
atom_trak_clear (trak);
g_free (trak);
}
static void
atom_moov_init (AtomMOOV * moov, AtomsContext * context)
{
atom_header_set (&(moov->header), FOURCC_moov, 0, 0);
atom_mvhd_init (&(moov->mvhd));
atom_mvex_init (&(moov->mvex));
atom_udta_init (&moov->udta, context);
moov->traks = NULL;
moov->context = *context;
}
AtomMOOV *
atom_moov_new (AtomsContext * context)
{
AtomMOOV *moov = g_new0 (AtomMOOV, 1);
atom_moov_init (moov, context);
return moov;
}
static void
atom_trex_free (AtomTREX * trex)
{
atom_full_clear (&trex->header);
g_free (trex);
}
static void
atom_mvex_clear (AtomMVEX * mvex)
{
GList *walker;
atom_clear (&mvex->header);
walker = mvex->trexs;
while (walker) {
atom_trex_free ((AtomTREX *) walker->data);
walker = g_list_next (walker);
}
g_list_free (mvex->trexs);
mvex->trexs = NULL;
}
void
atom_moov_free (AtomMOOV * moov)
{
GList *walker;
atom_clear (&moov->header);
atom_mvhd_clear (&moov->mvhd);
walker = moov->traks;
while (walker) {
atom_trak_free ((AtomTRAK *) walker->data);
walker = g_list_next (walker);
}
g_list_free (moov->traks);
moov->traks = NULL;
atom_udta_clear (&moov->udta);
atom_mvex_clear (&moov->mvex);
g_free (moov);
}
/* -- end of init / free -- */
/* -- copy data functions -- */
static guint8
atom_full_get_version (AtomFull * full)
{
return full->version;
}
static guint64
common_time_info_copy_data (TimeInfo * ti, gboolean trunc_to_32,
guint8 ** buffer, guint64 * size, guint64 * offset)
{
guint64 original_offset = *offset;
if (trunc_to_32) {
prop_copy_uint32 ((guint32) ti->creation_time, buffer, size, offset);
prop_copy_uint32 ((guint32) ti->modification_time, buffer, size, offset);
prop_copy_uint32 (ti->timescale, buffer, size, offset);
prop_copy_uint32 ((guint32) ti->duration, buffer, size, offset);
} else {
prop_copy_uint64 (ti->creation_time, buffer, size, offset);
prop_copy_uint64 (ti->modification_time, buffer, size, offset);
prop_copy_uint32 (ti->timescale, buffer, size, offset);
prop_copy_uint64 (ti->duration, buffer, size, offset);
}
return *offset - original_offset;
}
static void
atom_write_size (guint8 ** buffer, guint64 * size, guint64 * offset,
guint64 atom_pos)
{
/* this only works for non-extended atom size, which is OK
* (though it could be made to do mem_move, etc and write extended size) */
prop_copy_uint32 (*offset - atom_pos, buffer, size, &atom_pos);
}
static guint64
atom_copy_empty (Atom * atom, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
prop_copy_uint32 (0, buffer, size, offset);
return *offset - original_offset;
}
guint64
atom_copy_data (Atom * atom, guint8 ** buffer, guint64 * size, guint64 * offset)
{
guint64 original_offset = *offset;
/* copies type and size */
prop_copy_uint32 (atom->size, buffer, size, offset);
prop_copy_fourcc (atom->type, buffer, size, offset);
/* extended size needed */
if (atom->size == 1) {
/* really should not happen other than with mdat atom;
* would be a problem for size (re)write code, not to mention memory */
g_return_val_if_fail (atom->type == FOURCC_mdat, 0);
prop_copy_uint64 (atom->extended_size, buffer, size, offset);
}
return *offset - original_offset;
}
static guint64
atom_full_copy_data (AtomFull * atom, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&atom->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint8 (atom->version, buffer, size, offset);
prop_copy_uint8_array (atom->flags, 3, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_info_list_copy_data (GList * ai, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
while (ai) {
AtomInfo *info = (AtomInfo *) ai->data;
if (!info->copy_data_func (info->atom, buffer, size, offset)) {
return 0;
}
ai = g_list_next (ai);
}
return *offset - original_offset;
}
static guint64
atom_data_copy_data (AtomData * data, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&data->header, buffer, size, offset)) {
return 0;
}
if (data->datalen)
prop_copy_uint8_array (data->data, data->datalen, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_uuid_copy_data (AtomUUID * uuid, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&uuid->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint8_array (uuid->uuid, 16, buffer, size, offset);
if (uuid->datalen)
prop_copy_uint8_array (uuid->data, uuid->datalen, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
guint64
atom_ftyp_copy_data (AtomFTYP * ftyp, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&ftyp->header, buffer, size, offset)) {
return 0;
}
prop_copy_fourcc (ftyp->major_brand, buffer, size, offset);
prop_copy_uint32 (ftyp->version, buffer, size, offset);
prop_copy_fourcc_array (ftyp->compatible_brands, ftyp->compatible_brands_size,
buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
guint64
atom_mvhd_copy_data (AtomMVHD * atom, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint8 version;
guint64 original_offset = *offset;
if (!atom_full_copy_data (&(atom->header), buffer, size, offset)) {
return 0;
}
version = atom_full_get_version (&(atom->header));
if (version == 0) {
common_time_info_copy_data (&atom->time_info, TRUE, buffer, size, offset);
} else if (version == 1) {
common_time_info_copy_data (&atom->time_info, FALSE, buffer, size, offset);
} else {
*offset = original_offset;
return 0;
}
prop_copy_uint32 (atom->prefered_rate, buffer, size, offset);
prop_copy_uint16 (atom->volume, buffer, size, offset);
prop_copy_uint16 (atom->reserved3, buffer, size, offset);
prop_copy_uint32_array (atom->reserved4, 2, buffer, size, offset);
prop_copy_uint32_array (atom->matrix, 9, buffer, size, offset);
prop_copy_uint32 (atom->preview_time, buffer, size, offset);
prop_copy_uint32 (atom->preview_duration, buffer, size, offset);
prop_copy_uint32 (atom->poster_time, buffer, size, offset);
prop_copy_uint32 (atom->selection_time, buffer, size, offset);
prop_copy_uint32 (atom->selection_duration, buffer, size, offset);
prop_copy_uint32 (atom->current_time, buffer, size, offset);
prop_copy_uint32 (atom->next_track_id, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_tkhd_copy_data (AtomTKHD * tkhd, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&tkhd->header, buffer, size, offset)) {
return 0;
}
if (atom_full_get_version (&tkhd->header) == 0) {
prop_copy_uint32 ((guint32) tkhd->creation_time, buffer, size, offset);
prop_copy_uint32 ((guint32) tkhd->modification_time, buffer, size, offset);
prop_copy_uint32 (tkhd->track_ID, buffer, size, offset);
prop_copy_uint32 (tkhd->reserved, buffer, size, offset);
prop_copy_uint32 ((guint32) tkhd->duration, buffer, size, offset);
} else {
prop_copy_uint64 (tkhd->creation_time, buffer, size, offset);
prop_copy_uint64 (tkhd->modification_time, buffer, size, offset);
prop_copy_uint32 (tkhd->track_ID, buffer, size, offset);
prop_copy_uint32 (tkhd->reserved, buffer, size, offset);
prop_copy_uint64 (tkhd->duration, buffer, size, offset);
}
prop_copy_uint32_array (tkhd->reserved2, 2, buffer, size, offset);
prop_copy_uint16 (tkhd->layer, buffer, size, offset);
prop_copy_uint16 (tkhd->alternate_group, buffer, size, offset);
prop_copy_uint16 (tkhd->volume, buffer, size, offset);
prop_copy_uint16 (tkhd->reserved3, buffer, size, offset);
prop_copy_uint32_array (tkhd->matrix, 9, buffer, size, offset);
prop_copy_uint32 (tkhd->width, buffer, size, offset);
prop_copy_uint32 (tkhd->height, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_hdlr_copy_data (AtomHDLR * hdlr, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&hdlr->header, buffer, size, offset)) {
return 0;
}
prop_copy_fourcc (hdlr->component_type, buffer, size, offset);
prop_copy_fourcc (hdlr->handler_type, buffer, size, offset);
prop_copy_fourcc (hdlr->manufacturer, buffer, size, offset);
prop_copy_uint32 (hdlr->flags, buffer, size, offset);
prop_copy_uint32 (hdlr->flags_mask, buffer, size, offset);
if (hdlr->flavor == ATOMS_TREE_FLAVOR_MOV) {
prop_copy_size_string ((guint8 *) hdlr->name, strlen (hdlr->name), buffer,
size, offset);
} else {
/* assume isomedia base is more generic and use null terminated */
prop_copy_null_terminated_string (hdlr->name, buffer, size, offset);
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_vmhd_copy_data (AtomVMHD * vmhd, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&vmhd->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint16 (vmhd->graphics_mode, buffer, size, offset);
prop_copy_uint16_array (vmhd->opcolor, 3, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
static guint64
atom_smhd_copy_data (AtomSMHD * smhd, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&smhd->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint16 (smhd->balance, buffer, size, offset);
prop_copy_uint16 (smhd->reserved, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
static guint64
atom_hmhd_copy_data (AtomHMHD * hmhd, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&hmhd->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint16 (hmhd->max_pdu_size, buffer, size, offset);
prop_copy_uint16 (hmhd->avg_pdu_size, buffer, size, offset);
prop_copy_uint32 (hmhd->max_bitrate, buffer, size, offset);
prop_copy_uint32 (hmhd->avg_bitrate, buffer, size, offset);
prop_copy_uint32 (hmhd->sliding_avg_bitrate, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
static guint64
atom_tcmi_copy_data (AtomTCMI * tcmi, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&tcmi->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint16 (tcmi->text_font, buffer, size, offset);
prop_copy_uint16 (tcmi->text_face, buffer, size, offset);
prop_copy_uint16 (tcmi->text_size, buffer, size, offset);
prop_copy_uint16 (tcmi->text_color[0], buffer, size, offset);
prop_copy_uint16 (tcmi->text_color[1], buffer, size, offset);
prop_copy_uint16 (tcmi->text_color[2], buffer, size, offset);
prop_copy_uint16 (tcmi->bg_color[0], buffer, size, offset);
prop_copy_uint16 (tcmi->bg_color[1], buffer, size, offset);
prop_copy_uint16 (tcmi->bg_color[2], buffer, size, offset);
/* reserved */
prop_copy_uint16 (0, buffer, size, offset);
prop_copy_size_string ((guint8 *) tcmi->font_name, strlen (tcmi->font_name),
buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
static guint64
atom_tmcd_copy_data (AtomTMCD * tmcd, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&tmcd->header, buffer, size, offset)) {
return 0;
}
if (!atom_tcmi_copy_data (&tmcd->tcmi, buffer, size, offset)) {
return 0;
}
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
static guint64
atom_gmin_copy_data (AtomGMIN * gmin, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&gmin->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint16 (gmin->graphics_mode, buffer, size, offset);
prop_copy_uint16 (gmin->opcolor[0], buffer, size, offset);
prop_copy_uint16 (gmin->opcolor[1], buffer, size, offset);
prop_copy_uint16 (gmin->opcolor[2], buffer, size, offset);
prop_copy_uint8 (gmin->balance, buffer, size, offset);
/* reserved */
prop_copy_uint8 (0, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
static guint64
atom_gmhd_copy_data (AtomGMHD * gmhd, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&gmhd->header, buffer, size, offset)) {
return 0;
}
if (!atom_gmin_copy_data (&gmhd->gmin, buffer, size, offset)) {
return 0;
}
if (!atom_tmcd_copy_data (&gmhd->tmcd, buffer, size, offset)) {
return 0;
}
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
static gboolean
atom_url_same_file_flag (AtomURL * url)
{
return (url->header.flags[2] & 0x1) == 1;
}
static guint64
atom_url_copy_data (AtomURL * url, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&url->header, buffer, size, offset)) {
return 0;
}
if (!atom_url_same_file_flag (url)) {
prop_copy_null_terminated_string (url->location, buffer, size, offset);
}
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
guint64
atom_stts_copy_data (AtomSTTS * stts, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
guint i;
if (!atom_full_copy_data (&stts->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (atom_array_get_len (&stts->entries), buffer, size, offset);
/* minimize realloc */
prop_copy_ensure_buffer (buffer, size, offset,
8 * atom_array_get_len (&stts->entries));
for (i = 0; i < atom_array_get_len (&stts->entries); i++) {
STTSEntry *entry = &atom_array_index (&stts->entries, i);
prop_copy_uint32 (entry->sample_count, buffer, size, offset);
prop_copy_int32 (entry->sample_delta, buffer, size, offset);
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_sample_entry_copy_data (SampleTableEntry * se, guint8 ** buffer,
guint64 * size, guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&se->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint8_array (se->reserved, 6, buffer, size, offset);
prop_copy_uint16 (se->data_reference_index, buffer, size, offset);
return *offset - original_offset;
}
static guint64
atom_esds_copy_data (AtomESDS * esds, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&esds->header, buffer, size, offset)) {
return 0;
}
if (!desc_es_descriptor_copy_data (&esds->es, buffer, size, offset)) {
return 0;
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_frma_copy_data (AtomFRMA * frma, guint8 ** buffer,
guint64 * size, guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&(frma->header), buffer, size, offset))
return 0;
prop_copy_fourcc (frma->media_type, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_hint_sample_entry_copy_data (AtomHintSampleEntry * hse, guint8 ** buffer,
guint64 * size, guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_sample_entry_copy_data (&hse->se, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (hse->size, buffer, size, offset);
prop_copy_uint8_array (hse->data, hse->size, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
sample_entry_mp4a_copy_data (SampleTableEntryMP4A * mp4a, guint8 ** buffer,
guint64 * size, guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_sample_entry_copy_data (&mp4a->se, buffer, size, offset)) {
return 0;
}
prop_copy_uint16 (mp4a->version, buffer, size, offset);
prop_copy_uint16 (mp4a->revision_level, buffer, size, offset);
prop_copy_uint32 (mp4a->vendor, buffer, size, offset);
prop_copy_uint16 (mp4a->channels, buffer, size, offset);
prop_copy_uint16 (mp4a->sample_size, buffer, size, offset);
prop_copy_uint16 (mp4a->compression_id, buffer, size, offset);
prop_copy_uint16 (mp4a->packet_size, buffer, size, offset);
prop_copy_uint32 (mp4a->sample_rate, buffer, size, offset);
/* this should always be 0 for mp4 flavor */
if (mp4a->version == 1) {
prop_copy_uint32 (mp4a->samples_per_packet, buffer, size, offset);
prop_copy_uint32 (mp4a->bytes_per_packet, buffer, size, offset);
prop_copy_uint32 (mp4a->bytes_per_frame, buffer, size, offset);
prop_copy_uint32 (mp4a->bytes_per_sample, buffer, size, offset);
}
if (mp4a->extension_atoms) {
if (!atom_info_list_copy_data (mp4a->extension_atoms, buffer, size, offset))
return 0;
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
sample_entry_mp4v_copy_data (SampleTableEntryMP4V * mp4v, guint8 ** buffer,
guint64 * size, guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_sample_entry_copy_data (&mp4v->se, buffer, size, offset)) {
return 0;
}
prop_copy_uint16 (mp4v->version, buffer, size, offset);
prop_copy_uint16 (mp4v->revision_level, buffer, size, offset);
prop_copy_fourcc (mp4v->vendor, buffer, size, offset);
prop_copy_uint32 (mp4v->temporal_quality, buffer, size, offset);
prop_copy_uint32 (mp4v->spatial_quality, buffer, size, offset);
prop_copy_uint16 (mp4v->width, buffer, size, offset);
prop_copy_uint16 (mp4v->height, buffer, size, offset);
prop_copy_uint32 (mp4v->horizontal_resolution, buffer, size, offset);
prop_copy_uint32 (mp4v->vertical_resolution, buffer, size, offset);
prop_copy_uint32 (mp4v->datasize, buffer, size, offset);
prop_copy_uint16 (mp4v->frame_count, buffer, size, offset);
prop_copy_fixed_size_string ((guint8 *) mp4v->compressor, 32, buffer, size,
offset);
prop_copy_uint16 (mp4v->depth, buffer, size, offset);
prop_copy_uint16 (mp4v->color_table_id, buffer, size, offset);
/* extra atoms */
if (mp4v->extension_atoms &&
!atom_info_list_copy_data (mp4v->extension_atoms, buffer, size, offset))
return 0;
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
sample_entry_tx3g_copy_data (SampleTableEntryTX3G * tx3g, guint8 ** buffer,
guint64 * size, guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_sample_entry_copy_data (&tx3g->se, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (tx3g->display_flags, buffer, size, offset);
/* reserved */
prop_copy_uint8 (1, buffer, size, offset);
prop_copy_uint8 (-1, buffer, size, offset);
prop_copy_uint32 (0, buffer, size, offset);
prop_copy_uint64 (tx3g->default_text_box, buffer, size, offset);
/* reserved */
prop_copy_uint32 (0, buffer, size, offset);
prop_copy_uint16 (tx3g->font_id, buffer, size, offset);
prop_copy_uint8 (tx3g->font_face, buffer, size, offset);
prop_copy_uint8 (tx3g->font_size, buffer, size, offset);
prop_copy_uint32 (tx3g->foreground_color_rgba, buffer, size, offset);
/* it must have a fonttable atom */
{
Atom atom;
atom_header_set (&atom, FOURCC_ftab, 18, 0);
if (!atom_copy_data (&atom, buffer, size, offset))
return 0;
prop_copy_uint16 (1, buffer, size, offset); /* Count must be 1 */
prop_copy_uint16 (1, buffer, size, offset); /* Font id: 1 */
prop_copy_size_string ((guint8 *) "Serif", 5, buffer, size, offset);
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
sample_entry_tmcd_copy_data (SampleTableEntryTMCD * tmcd, guint8 ** buffer,
guint64 * size, guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_sample_entry_copy_data (&tmcd->se, buffer, size, offset)) {
return 0;
}
/* reserved */
prop_copy_uint32 (0, buffer, size, offset);
prop_copy_uint32 (tmcd->tc_flags, buffer, size, offset);
prop_copy_uint32 (tmcd->timescale, buffer, size, offset);
prop_copy_uint32 (tmcd->frame_duration, buffer, size, offset);
prop_copy_uint8 (tmcd->n_frames, buffer, size, offset);
/* reserved */
prop_copy_uint8 (0, buffer, size, offset);
{
Atom atom;
guint64 name_offset = *offset;
atom_header_set (&atom, FOURCC_name, 0, 0);
if (!atom_copy_data (&atom, buffer, size, offset))
return 0;
prop_copy_uint16 (strlen (tmcd->name.name), buffer, size, offset);
prop_copy_uint16 (tmcd->name.language_code, buffer, size, offset);
prop_copy_fixed_size_string ((guint8 *) tmcd->name.name,
strlen (tmcd->name.name), buffer, size, offset);
atom_write_size (buffer, size, offset, name_offset);
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
guint64
atom_stsz_copy_data (AtomSTSZ * stsz, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
guint i;
if (!atom_full_copy_data (&stsz->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (stsz->sample_size, buffer, size, offset);
prop_copy_uint32 (stsz->table_size, buffer, size, offset);
if (stsz->sample_size == 0) {
/* minimize realloc */
prop_copy_ensure_buffer (buffer, size, offset, 4 * stsz->table_size);
/* entry count must match sample count */
g_assert (atom_array_get_len (&stsz->entries) == stsz->table_size);
for (i = 0; i < atom_array_get_len (&stsz->entries); i++) {
prop_copy_uint32 (atom_array_index (&stsz->entries, i), buffer, size,
offset);
}
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
guint64
atom_stsc_copy_data (AtomSTSC * stsc, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
guint i, len;
gboolean last_entries_merged = FALSE;
if (!atom_full_copy_data (&stsc->header, buffer, size, offset)) {
return 0;
}
/* Last two entries might be the same size here as we only merge once the
* next chunk is started */
if ((len = atom_array_get_len (&stsc->entries)) > 1 &&
((atom_array_index (&stsc->entries, len - 1)).samples_per_chunk ==
(atom_array_index (&stsc->entries, len - 2)).samples_per_chunk)) {
stsc->entries.len--;
last_entries_merged = TRUE;
}
prop_copy_uint32 (atom_array_get_len (&stsc->entries), buffer, size, offset);
/* minimize realloc */
prop_copy_ensure_buffer (buffer, size, offset,
12 * atom_array_get_len (&stsc->entries));
for (i = 0; i < atom_array_get_len (&stsc->entries); i++) {
STSCEntry *entry = &atom_array_index (&stsc->entries, i);
prop_copy_uint32 (entry->first_chunk, buffer, size, offset);
prop_copy_uint32 (entry->samples_per_chunk, buffer, size, offset);
prop_copy_uint32 (entry->sample_description_index, buffer, size, offset);
}
atom_write_size (buffer, size, offset, original_offset);
/* Need to add the last entry again as in "robust" muxing mode we will most
* likely add new samples to the last chunk, thus making the
* samples_per_chunk in the last one different to the second to last one,
* and thus making it wrong to keep them merged
*/
if (last_entries_merged)
stsc->entries.len++;
return *offset - original_offset;
}
guint64
atom_ctts_copy_data (AtomCTTS * ctts, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
guint i;
if (!atom_full_copy_data (&ctts->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (atom_array_get_len (&ctts->entries), buffer, size, offset);
/* minimize realloc */
prop_copy_ensure_buffer (buffer, size, offset,
8 * atom_array_get_len (&ctts->entries));
for (i = 0; i < atom_array_get_len (&ctts->entries); i++) {
CTTSEntry *entry = &atom_array_index (&ctts->entries, i);
prop_copy_uint32 (entry->samplecount, buffer, size, offset);
prop_copy_uint32 (entry->sampleoffset, buffer, size, offset);
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
guint64
atom_svmi_copy_data (AtomSVMI * svmi, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&svmi->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint8 (svmi->stereoscopic_composition_type, buffer, size, offset);
prop_copy_uint8 (svmi->is_left_first ? 1 : 0, buffer, size, offset);
/* stereo-mono change count */
prop_copy_uint32 (0, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
guint64
atom_stco64_copy_data (AtomSTCO64 * stco64, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
guint i;
gboolean trunc_to_32 = stco64->header.header.type == FOURCC_stco;
if (!atom_full_copy_data (&stco64->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (atom_array_get_len (&stco64->entries), buffer, size,
offset);
/* minimize realloc */
prop_copy_ensure_buffer (buffer, size, offset,
8 * atom_array_get_len (&stco64->entries));
for (i = 0; i < atom_array_get_len (&stco64->entries); i++) {
guint64 value =
atom_array_index (&stco64->entries, i) + stco64->chunk_offset;
if (trunc_to_32) {
prop_copy_uint32 ((guint32) value, buffer, size, offset);
} else {
prop_copy_uint64 (value, buffer, size, offset);
}
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
guint64
atom_stss_copy_data (AtomSTSS * stss, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
guint i;
if (atom_array_get_len (&stss->entries) == 0) {
/* FIXME not needing this atom might be confused with error while copying */
return 0;
}
if (!atom_full_copy_data (&stss->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (atom_array_get_len (&stss->entries), buffer, size, offset);
/* minimize realloc */
prop_copy_ensure_buffer (buffer, size, offset,
4 * atom_array_get_len (&stss->entries));
for (i = 0; i < atom_array_get_len (&stss->entries); i++) {
prop_copy_uint32 (atom_array_index (&stss->entries, i), buffer, size,
offset);
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_stsd_copy_data (AtomSTSD * stsd, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
GList *walker;
if (!atom_full_copy_data (&stsd->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (stsd->n_entries, buffer, size, offset);
for (walker = g_list_last (stsd->entries); walker != NULL;
walker = g_list_previous (walker)) {
SampleTableEntry *se = (SampleTableEntry *) walker->data;
switch (((Atom *) walker->data)->type) {
case FOURCC_mp4a:
if (!sample_entry_mp4a_copy_data ((SampleTableEntryMP4A *) walker->data,
buffer, size, offset)) {
return 0;
}
break;
case FOURCC_mp4v:
if (!sample_entry_mp4v_copy_data ((SampleTableEntryMP4V *) walker->data,
buffer, size, offset)) {
return 0;
}
break;
default:
if (se->kind == VIDEO) {
if (!sample_entry_mp4v_copy_data ((SampleTableEntryMP4V *)
walker->data, buffer, size, offset)) {
return 0;
}
} else if (se->kind == AUDIO) {
if (!sample_entry_mp4a_copy_data ((SampleTableEntryMP4A *)
walker->data, buffer, size, offset)) {
return 0;
}
} else if (se->kind == SUBTITLE) {
if (!sample_entry_tx3g_copy_data ((SampleTableEntryTX3G *)
walker->data, buffer, size, offset)) {
return 0;
}
} else if (se->kind == TIMECODE) {
if (!sample_entry_tmcd_copy_data ((SampleTableEntryTMCD *)
walker->data, buffer, size, offset)) {
return 0;
}
} else {
if (!atom_hint_sample_entry_copy_data (
(AtomHintSampleEntry *) walker->data, buffer, size, offset)) {
return 0;
}
}
break;
}
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_stbl_copy_data (AtomSTBL * stbl, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&stbl->header, buffer, size, offset)) {
return 0;
}
if (!atom_stsd_copy_data (&stbl->stsd, buffer, size, offset)) {
return 0;
}
if (!atom_stts_copy_data (&stbl->stts, buffer, size, offset)) {
return 0;
}
/* this atom is optional, so let's check if we need it
* (to avoid false error) */
if (atom_array_get_len (&stbl->stss.entries)) {
if (!atom_stss_copy_data (&stbl->stss, buffer, size, offset)) {
return 0;
}
}
if (!atom_stsc_copy_data (&stbl->stsc, buffer, size, offset)) {
return 0;
}
if (!atom_stsz_copy_data (&stbl->stsz, buffer, size, offset)) {
return 0;
}
if (stbl->ctts && stbl->ctts->do_pts) {
if (!atom_ctts_copy_data (stbl->ctts, buffer, size, offset)) {
return 0;
}
}
if (stbl->svmi) {
if (!atom_svmi_copy_data (stbl->svmi, buffer, size, offset)) {
return 0;
}
}
if (!atom_stco64_copy_data (&stbl->stco64, buffer, size, offset)) {
return 0;
}
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
static guint64
atom_dref_copy_data (AtomDREF * dref, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
GList *walker;
if (!atom_full_copy_data (&dref->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (g_list_length (dref->entries), buffer, size, offset);
walker = dref->entries;
while (walker != NULL) {
Atom *atom = (Atom *) walker->data;
if (atom->type == FOURCC_url_) {
if (!atom_url_copy_data ((AtomURL *) atom, buffer, size, offset))
return 0;
} else if (atom->type == FOURCC_alis) {
if (!atom_full_copy_data ((AtomFull *) atom, buffer, size, offset))
return 0;
} else {
g_error ("Unsupported atom used inside dref atom");
}
walker = g_list_next (walker);
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_dinf_copy_data (AtomDINF * dinf, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&dinf->header, buffer, size, offset)) {
return 0;
}
if (!atom_dref_copy_data (&dinf->dref, buffer, size, offset)) {
return 0;
}
atom_write_size (buffer, size, offset, original_offset);
return original_offset - *offset;
}
static guint64
atom_minf_copy_data (AtomMINF * minf, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&minf->header, buffer, size, offset)) {
return 0;
}
if (minf->vmhd) {
if (!atom_vmhd_copy_data (minf->vmhd, buffer, size, offset)) {
return 0;
}
} else if (minf->smhd) {
if (!atom_smhd_copy_data (minf->smhd, buffer, size, offset)) {
return 0;
}
} else if (minf->hmhd) {
if (!atom_hmhd_copy_data (minf->hmhd, buffer, size, offset)) {
return 0;
}
} else if (minf->gmhd) {
if (!atom_gmhd_copy_data (minf->gmhd, buffer, size, offset)) {
return 0;
}
}
if (minf->hdlr) {
if (!atom_hdlr_copy_data (minf->hdlr, buffer, size, offset)) {
return 0;
}
}
if (!atom_dinf_copy_data (&minf->dinf, buffer, size, offset)) {
return 0;
}
if (!atom_stbl_copy_data (&minf->stbl, buffer, size, offset)) {
return 0;
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_mdhd_copy_data (AtomMDHD * mdhd, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_full_copy_data (&mdhd->header, buffer, size, offset)) {
return 0;
}
if (!common_time_info_copy_data (&mdhd->time_info,
atom_full_get_version (&mdhd->header) == 0, buffer, size, offset)) {
return 0;
}
prop_copy_uint16 (mdhd->language_code, buffer, size, offset);
prop_copy_uint16 (mdhd->quality, buffer, size, offset);
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_mdia_copy_data (AtomMDIA * mdia, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
if (!atom_copy_data (&mdia->header, buffer, size, offset)) {
return 0;
}
if (!atom_mdhd_copy_data (&mdia->mdhd, buffer, size, offset)) {
return 0;
}
if (!atom_hdlr_copy_data (&mdia->hdlr, buffer, size, offset)) {
return 0;
}
if (!atom_minf_copy_data (&mdia->minf, buffer, size, offset)) {
return 0;
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_elst_copy_data (AtomELST * elst, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
GSList *walker;
if (!atom_full_copy_data (&elst->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (g_slist_length (elst->entries), buffer, size, offset);
for (walker = elst->entries; walker != NULL; walker = g_slist_next (walker)) {
EditListEntry *entry = (EditListEntry *) walker->data;
prop_copy_uint32 (entry->duration, buffer, size, offset);
prop_copy_uint32 (entry->media_time, buffer, size, offset);
prop_copy_uint32 (entry->media_rate, buffer, size, offset);
}
atom_write_size (buffer, size, offset, original_offset);
return *offset - original_offset;
}
static guint64
atom_tref_copy_data (AtomTREF * tref, guint8 ** buffer, guint64 * size,
guint64 * offset)
{
guint64 original_offset = *offset;
guint i;
g_assert (atom_array_get_len (&tref->entries) > 0);
if (!atom_copy_data (&tref->header, buffer, size, offset)) {
return 0;
}
prop_copy_uint32 (8 + 4 * atom_array_get_len (&