FakeESOut.cpp 10.9 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
/*
 * FakeESOut.cpp
 *****************************************************************************
 * Copyright © 2014-2015 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.
 *****************************************************************************/
20 21 22 23 24

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

25 26
#include "FakeESOut.hpp"
#include "FakeESOutID.hpp"
27
#include "CommandsQueue.hpp"
28 29
#include <vlc_es_out.h>
#include <vlc_block.h>
30
#include <cassert>
31

32
using namespace adaptive;
33

34
FakeESOut::FakeESOut( es_out_t *es, CommandsQueue *queue )
35 36 37 38 39 40 41 42 43 44 45
{
    real_es_out = es;
    fakeesout = new es_out_t;

    fakeesout->pf_add = esOutAdd_Callback;
    fakeesout->pf_control = esOutControl_Callback;
    fakeesout->pf_del = esOutDel_Callback;
    fakeesout->pf_destroy = esOutDestroy_Callback;
    fakeesout->pf_send = esOutSend_Callback;
    fakeesout->p_sys = (es_out_sys_t*) this;

46 47
    commandsqueue = queue;

48 49
    timestamps_offset = 0;
    extrainfo = NULL;
50
    vlc_mutex_init(&lock);
51 52 53 54 55 56 57 58 59 60 61 62
}

es_out_t * FakeESOut::getEsOut()
{
    return fakeesout;
}

FakeESOut::~FakeESOut()
{
    recycleAll();
    gc();

63
    delete fakeesout;
64
    vlc_mutex_destroy(&lock);
65 66 67 68
}

void FakeESOut::setTimestampOffset(mtime_t offset)
{
69
    vlc_mutex_lock(&lock);
70
    timestamps_offset = offset;
71
    vlc_mutex_unlock(&lock);
72 73 74 75
}

void FakeESOut::setExtraInfoProvider( ExtraFMTInfoInterface *extra )
{
76
    vlc_mutex_lock(&lock);
77
    extrainfo = extra;
78
    vlc_mutex_unlock(&lock);
79 80
}

81
FakeESOutID * FakeESOut::createNewID( const es_format_t *p_fmt )
82 83 84 85
{
    es_format_t fmtcopy;
    es_format_Init( &fmtcopy, 0, 0 );
    es_format_Copy( &fmtcopy, p_fmt );
86
    fmtcopy.i_group = 0; /* Always ignore group for adaptive */
87

88 89
    vlc_mutex_lock(&lock);

90 91 92
    if( extrainfo )
        extrainfo->fillExtraFMTInfo( &fmtcopy );

93 94 95 96
    FakeESOutID *es_id = new (std::nothrow) FakeESOutID( this, &fmtcopy );
    if(likely(es_id))
        fakeesidlist.push_back( es_id );

97 98
    vlc_mutex_unlock(&lock);

99 100 101 102 103 104 105 106 107 108
    es_format_Clean( &fmtcopy );

    return es_id;
}

void FakeESOut::createOrRecycleRealEsID( FakeESOutID *es_id )
{
    std::list<FakeESOutID *>::iterator it;
    es_out_id_t *realid = NULL;

109 110
    vlc_mutex_lock(&lock);

111
    bool b_select = false;
112 113
    for( it=recycle_candidates.begin(); it!=recycle_candidates.end(); ++it )
    {
114 115
        FakeESOutID *cand = *it;
        if ( cand->isCompatible( es_id ) )
116
        {
117 118 119
            realid = cand->realESID();
            cand->setRealESID( NULL );
            delete *it;
120 121 122
            recycle_candidates.erase( it );
            break;
        }
123
        else if( cand->getFmt()->i_cat == es_id->getFmt()->i_cat && cand->realESID() )
124 125 126 127 128
        {
            /* We need to enforce same selection when not reused
               Otherwise the es will select any other compatible track
               and will end this in a activate/select loop when reactivating a track */
            es_out_Control( real_es_out, ES_OUT_GET_ES_STATE, cand->realESID(), &b_select );
129
            break;
130
        }
131 132
    }

133
    if( !realid )
134
    {
135
        realid = es_out_Add( real_es_out, es_id->getFmt() );
136 137 138
        if( b_select )
            es_out_Control( real_es_out, ES_OUT_SET_ES_STATE, realid, b_select );
    }
139

140
    es_id->setRealESID( realid );
141 142

    vlc_mutex_unlock(&lock);
143 144 145 146
}

mtime_t FakeESOut::getTimestampOffset() const
{
147 148 149 150
    vlc_mutex_lock(const_cast<vlc_mutex_t *>(&lock));
    mtime_t time = timestamps_offset;
    vlc_mutex_unlock(const_cast<vlc_mutex_t *>(&lock));
    return time;
151 152 153 154 155 156
}

size_t FakeESOut::esCount() const
{
    size_t i_count = 0;
    std::list<FakeESOutID *>::const_iterator it;
157
    vlc_mutex_lock(const_cast<vlc_mutex_t *>(&lock));
158 159 160
    for( it=fakeesidlist.begin(); it!=fakeesidlist.end(); ++it )
        if( (*it)->realESID() )
            i_count++;
161
    vlc_mutex_unlock(const_cast<vlc_mutex_t *>(&lock));
162 163
    return i_count;
}
164 165 166

void FakeESOut::schedulePCRReset()
{
167
    AbstractCommand *command = commandsqueue->factory()->creatEsOutControlResetPCRCommand();
168
    if( likely(command) )
169
        commandsqueue->Schedule( command );
170 171 172 173 174
}

void FakeESOut::scheduleAllForDeletion()
{
    std::list<FakeESOutID *>::const_iterator it;
175
    vlc_mutex_lock(&lock);
176 177 178 179 180
    for( it=fakeesidlist.begin(); it!=fakeesidlist.end(); ++it )
    {
        FakeESOutID *es_id = *it;
        if(!es_id->scheduledForDeletion())
        {
181
            AbstractCommand *command = commandsqueue->factory()->createEsOutDelCommand( es_id );
182 183
            if( likely(command) )
            {
184
                commandsqueue->Schedule( command );
185 186 187 188
                es_id->setScheduledForDeletion();
            }
        }
    }
189
    vlc_mutex_unlock(&lock);
190 191
}

192 193
void FakeESOut::recycleAll()
{
194
    /* Only used when demux is killed and commands queue is cancelled */
195 196
    commandsqueue->Abort( true );
    assert(commandsqueue->isEmpty());
197
    vlc_mutex_lock(&lock);
198
    recycle_candidates.splice( recycle_candidates.end(), fakeesidlist );
199
    vlc_mutex_unlock(&lock);
200 201 202 203
}

void FakeESOut::gc()
{
204
    vlc_mutex_lock(&lock);
205
    if( recycle_candidates.empty() )
206 207
    {
        vlc_mutex_unlock(&lock);
208
        return;
209
    }
210 211 212 213 214

    std::list<FakeESOutID *>::iterator it;
    for( it=recycle_candidates.begin(); it!=recycle_candidates.end(); ++it )
    {
        if( (*it)->realESID() )
215 216
        {
            es_out_Control( real_es_out, ES_OUT_SET_ES_STATE, (*it)->realESID(), false );
217
            es_out_Del( real_es_out, (*it)->realESID() );
218
        }
219 220 221
        delete *it;
    }
    recycle_candidates.clear();
222
    vlc_mutex_unlock(&lock);
223 224 225 226 227 228
}

bool FakeESOut::hasSelectedEs() const
{
    bool b_selected = false;
    std::list<FakeESOutID *>::const_iterator it;
229
    vlc_mutex_lock(const_cast<vlc_mutex_t *>(&lock));
230 231 232 233 234 235
    for( it=fakeesidlist.begin(); it!=fakeesidlist.end() && !b_selected; ++it )
    {
        FakeESOutID *esID = *it;
        if( esID->realESID() )
            es_out_Control( real_es_out, ES_OUT_GET_ES_STATE, esID->realESID(), &b_selected );
    }
236
    vlc_mutex_unlock(const_cast<vlc_mutex_t *>(&lock));
237 238 239
    return b_selected;
}

240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258
bool FakeESOut::drain()
{
    bool b_drained = true;
    std::list<FakeESOutID *>::const_iterator it;
    vlc_mutex_lock(&lock);
    for( it=fakeesidlist.begin(); it!=fakeesidlist.end(); ++it )
    {
        FakeESOutID *esID = *it;
        if( esID->realESID() )
        {
            bool b_empty;
            es_out_Control( real_es_out, ES_OUT_GET_EMPTY, &b_empty );
            b_drained &= b_empty;
        }
    }
    vlc_mutex_unlock(&lock);
    return b_drained;
}

259 260
bool FakeESOut::restarting() const
{
261 262 263 264
    vlc_mutex_lock(const_cast<vlc_mutex_t *>(&lock));
    bool b = !recycle_candidates.empty();
    vlc_mutex_unlock(const_cast<vlc_mutex_t *>(&lock));
    return b;
265 266 267 268
}

void FakeESOut::recycle( FakeESOutID *id )
{
269
    vlc_mutex_lock(&lock);
270 271
    fakeesidlist.remove( id );
    recycle_candidates.push_back( id );
272
    vlc_mutex_unlock(&lock);
273 274 275 276 277 278 279 280 281
}

/* Static callbacks */
/* Always pass Fake ES ID to slave demuxes, it is just an opaque struct to them */
es_out_id_t * FakeESOut::esOutAdd_Callback(es_out_t *fakees, const es_format_t *p_fmt)
{
    FakeESOut *me = (FakeESOut *) fakees->p_sys;
    /* Feed the slave demux/stream_Demux with FakeESOutID struct,
     * we'll create real ES later on main demux on execution */
282
    FakeESOutID *es_id = me->createNewID( p_fmt );
283 284
    if( likely(es_id) )
    {
285
        assert(!es_id->scheduledForDeletion());
286
        AbstractCommand *command = me->commandsqueue->factory()->createEsOutAddCommand( es_id );
287 288
        if( likely(command) )
        {
289
            me->commandsqueue->Schedule( command );
290 291 292 293 294 295 296 297 298 299 300 301 302 303
            return reinterpret_cast<es_out_id_t *>(es_id);
        }
        else
        {
            delete es_id;
        }
    }
    return NULL;
}

int FakeESOut::esOutSend_Callback(es_out_t *fakees, es_out_id_t *p_es, block_t *p_block)
{
    FakeESOut *me = (FakeESOut *) fakees->p_sys;
    FakeESOutID *es_id = reinterpret_cast<FakeESOutID *>( p_es );
304
    assert(!es_id->scheduledForDeletion());
305 306 307 308 309 310 311
    mtime_t offset = me->getTimestampOffset();
    if( p_block->i_dts > VLC_TS_INVALID )
    {
        p_block->i_dts += offset;
        if( p_block->i_pts > VLC_TS_INVALID )
                p_block->i_pts += offset;
    }
312
    AbstractCommand *command = me->commandsqueue->factory()->createEsOutSendCommand( es_id, p_block );
313 314
    if( likely(command) )
    {
315
        me->commandsqueue->Schedule( command );
316 317 318 319 320 321 322 323 324
        return VLC_SUCCESS;
    }
    return VLC_EGENERIC;
}

void FakeESOut::esOutDel_Callback(es_out_t *fakees, es_out_id_t *p_es)
{
    FakeESOut *me = (FakeESOut *) fakees->p_sys;
    FakeESOutID *es_id = reinterpret_cast<FakeESOutID *>( p_es );
325
    AbstractCommand *command = me->commandsqueue->factory()->createEsOutDelCommand( es_id );
326
    if( likely(command) )
327 328
    {
        es_id->setScheduledForDeletion();
329
        me->commandsqueue->Schedule( command );
330
    }
331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348
}

int FakeESOut::esOutControl_Callback(es_out_t *fakees, int i_query, va_list args)
{
    FakeESOut *me = (FakeESOut *) fakees->p_sys;

    switch( i_query )
    {
        case ES_OUT_SET_PCR:
        case ES_OUT_SET_GROUP_PCR:
        {
            int i_group;
            if( i_query == ES_OUT_SET_GROUP_PCR )
                i_group = static_cast<int>(va_arg( args, int ));
            else
                i_group = 0;
            int64_t  pcr = static_cast<int64_t>(va_arg( args, int64_t ));
            pcr += me->getTimestampOffset();
349
            AbstractCommand *command = me->commandsqueue->factory()->createEsOutControlPCRCommand( i_group, pcr );
350 351
            if( likely(command) )
            {
352
                me->commandsqueue->Schedule( command );
353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378
                return VLC_SUCCESS;
            }
        }
        break;

        /* For others, we don't have the delorean, so always lie */
        case ES_OUT_GET_ES_STATE:
        {
            static_cast<void*>(va_arg( args, es_out_id_t * ));
            bool *pb = static_cast<bool *>(va_arg( args, bool * ));
            *pb = true;
            // ft
        }
        case ES_OUT_SET_ES:
        case ES_OUT_SET_ES_DEFAULT:
        case ES_OUT_SET_ES_STATE:
            return VLC_SUCCESS;

    }

    return VLC_EGENERIC;
}

void FakeESOut::esOutDestroy_Callback(es_out_t *fakees)
{
    FakeESOut *me = (FakeESOut *) fakees->p_sys;
379
    AbstractCommand *command = me->commandsqueue->factory()->createEsOutDestroyCommand();
380
    if( likely(command) )
381
        me->commandsqueue->Schedule( command );
382 383
}
/* !Static callbacks */