/*
* SmoothIndexReader.cpp
*****************************************************************************
* Copyright (C) 2015 - VideoLAN and VLC authors
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "SmoothIndexReader.hpp"
#include "../../adaptive/playlist/BaseRepresentation.h"
#include "../../adaptive/playlist/BaseAdaptationSet.h"
#include "../../adaptive/playlist/SegmentTemplate.h"
#include "../../adaptive/playlist/SegmentTimeline.h"
#include "../../adaptive/playlist/BasePlaylist.hpp"
using namespace adaptive::mp4;
using namespace smooth::mp4;
SmoothIndexReader::SmoothIndexReader(vlc_object_t *obj)
: AtomsReader(obj)
{
}
bool SmoothIndexReader::parseIndex(block_t *p_block, BaseRepresentation *rep, uint64_t sequence)
{
if(!rep || !parseBlock(p_block))
return false;
/* Fixup moof sequence as they do not monotonically increase
nor provide a way to have moof time on implicit discontinuity */
const MP4_Box_t *mfhd_box = MP4_BoxGet( rootbox, "moof/mfhd" );
if( mfhd_box )
SetDWBE( &p_block->p_buffer[mfhd_box->i_pos + 8 + 4], sequence );
/* Do track ID fixup, must match track #1 */
const MP4_Box_t *tfhd_box = MP4_BoxGet( rootbox, "moof/traf/tfhd" );
if ( tfhd_box )
SetDWBE( &p_block->p_buffer[tfhd_box->i_pos + 8 + 4], 0x01 );
if(!rep->getPlaylist()->isLive())
return true;
const MP4_Box_t *uuid_box = MP4_BoxGet( rootbox, "moof/traf/uuid" );
while( uuid_box && uuid_box->i_type == ATOM_uuid )
{
if ( !CmpUUID( &uuid_box->i_uuid, &TfrfBoxUUID ) )
break;
uuid_box = uuid_box->p_next;
}
if(!uuid_box)
return false;
SegmentTimeline *timelineadd = new (std::nothrow) SegmentTimeline(nullptr);
if (timelineadd)
{
const MP4_Box_data_tfrf_t *p_tfrfdata = uuid_box->data.p_tfrf;
for ( uint8_t i=0; i<p_tfrfdata->i_fragment_count; i++ )
{
uint64_t dur = p_tfrfdata->p_tfrf_data_fields[i].i_fragment_duration;
uint64_t stime = p_tfrfdata->p_tfrf_data_fields[i].i_fragment_abs_time;
timelineadd->addElement(i+1, dur, 0, stime);
}
rep->inheritSegmentTemplate()->
inheritSegmentTimeline()->
updateWith(*timelineadd);
delete timelineadd;
#ifndef NDEBUG
msg_Dbg(rep->getPlaylist()->getVLCObject(), "Updated timeline from tfrf");
rep->debug(rep->getPlaylist()->getVLCObject(), 0);
#endif
}
return true;
}
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