static void *msg_thread (void *data)
{
msg_subscription_t *sub = data;
msg_bank_t *bank = libvlc_bank (sub->instance);
vlc_mutex_lock (&bank->lock);
for (;;)
{
/* Wait for messages */
assert (sub->begin < VLC_MSG_QSIZE);
assert (sub->end < VLC_MSG_QSIZE);
while (sub->begin != sub->end)
{
msg_item_t *msg = sub->items[sub->begin];
unsigned overruns = sub->overruns;
if (++sub->begin == VLC_MSG_QSIZE)
sub->begin = 0;
sub->overruns = 0;
vlc_mutex_unlock (&bank->lock);
sub->func (sub->opaque, msg, overruns);
msg_Release (msg);
vlc_mutex_lock (&bank->lock);
}
mutex_cleanup_push (&bank->lock);
vlc_cond_wait (&bank->wait, &bank->lock);
vlc_cleanup_pop ();
}
assert (0);
}
/*****************************************************************************
* ALSAThread: asynchronous thread used to DMA the data to the device
*****************************************************************************/
static void* ALSAThread( vlc_object_t* p_this )
{
aout_instance_t * p_aout = (aout_instance_t*)p_this;
struct aout_sys_t * p_sys = p_aout->output.p_sys;
int canc = vlc_savecancel ();
p_sys->p_status = (snd_pcm_status_t *)malloc(snd_pcm_status_sizeof());
/* Wait for the exact time to start playing (avoids resampling) */
vlc_mutex_lock( &p_sys->lock );
while( !p_sys->start_date && vlc_object_alive (p_aout) )
vlc_cond_wait( &p_sys->wait, &p_sys->lock );
vlc_mutex_unlock( &p_sys->lock );
if( !vlc_object_alive (p_aout) )
goto cleanup;
mwait( p_sys->start_date - AOUT_PTS_TOLERANCE / 4 );
while ( vlc_object_alive (p_aout) )
{
ALSAFill( p_aout );
}
cleanup:
snd_pcm_drop( p_sys->p_snd_pcm );
free( p_aout->output.p_sys->p_status );
vlc_restorecancel (canc);
return NULL;
}
void playlist_preparser_Delete( playlist_preparser_t *p_preparser )
{
vlc_mutex_lock( &p_preparser->lock );
/* Remove pending item to speed up preparser thread exit */
while( p_preparser->i_waiting > 0 )
{
preparser_entry_t *p_entry = p_preparser->pp_waiting[0];
vlc_gc_decref( p_entry->p_item );
free( p_entry );
REMOVE_ELEM( p_preparser->pp_waiting, p_preparser->i_waiting, 0 );
}
vlc_sem_post( &p_preparser->item_done );
while( p_preparser->b_live )
vlc_cond_wait( &p_preparser->wait, &p_preparser->lock );
vlc_mutex_unlock( &p_preparser->lock );
/* Destroy the item preparser */
vlc_sem_destroy( &p_preparser->item_done );
vlc_cond_destroy( &p_preparser->wait );
vlc_mutex_destroy( &p_preparser->lock );
if( p_preparser->p_fetcher != NULL )
playlist_fetcher_Delete( p_preparser->p_fetcher );
free( p_preparser );
}
picture_t *picture_pool_Wait(picture_pool_t *pool)
{
unsigned i;
vlc_mutex_lock(&pool->lock);
assert(pool->refs > 0);
while (pool->available == 0)
vlc_cond_wait(&pool->wait, &pool->lock);
i = ffsll(pool->available);
assert(i > 0);
pool->available &= ~(1ULL << (i - 1));
vlc_mutex_unlock(&pool->lock);
picture_t *picture = pool->picture[i - 1];
if (pool->pic_lock != NULL && pool->pic_lock(picture) != 0) {
vlc_mutex_lock(&pool->lock);
pool->available |= 1ULL << (i - 1);
vlc_cond_signal(&pool->wait);
vlc_mutex_unlock(&pool->lock);
return NULL;
}
picture_t *clone = picture_pool_ClonePicture(pool, i - 1);
if (clone != NULL) {
assert(clone->p_next == NULL);
atomic_fetch_add(&pool->refs, 1);
}
return clone;
}
/**************************************************************************
* event_async_loop (private) :
*
* Send queued events.
**************************************************************************/
static void * event_async_loop(void * arg)
{
libvlc_event_manager_t * p_em = arg;
libvlc_event_listener_t listener;
libvlc_event_t event;
vlc_threadvar_set(queue(p_em)->is_asynch_dispatch_thread_var, p_em);
queue_lock(p_em);
while (true) {
int has_listener = pop(p_em, &listener, &event);
if (has_listener)
{
queue_unlock(p_em);
listener.pf_callback(&event, listener.p_user_data); // This might edit the queue
queue_lock(p_em);
}
else
{
queue(p_em)->is_idle = true;
mutex_cleanup_push(&queue(p_em)->lock);
vlc_cond_broadcast(&queue(p_em)->signal_idle); // We'll be idle
vlc_cond_wait(&queue(p_em)->signal, &queue(p_em)->lock);
vlc_cleanup_pop();
queue(p_em)->is_idle = false;
}
}
queue_unlock(p_em);
return NULL;
}
static void flush(filter_t *filter)
{
filter_sys_t *sys = filter->p_sys;
MMAL_BUFFER_HEADER_T *buffer;
msg_Dbg(filter, "flush deinterlace filter");
if (atomic_load(&sys->input_in_transit) ||
atomic_load(&sys->output_in_transit)) {
msg_Dbg(filter, "flush: flush ports (input: %d, output: %d in transit)",
sys->input_in_transit, sys->output_in_transit);
mmal_port_flush(sys->output);
mmal_port_flush(sys->input);
msg_Dbg(filter, "flush: wait for all buffers to be returned");
vlc_mutex_lock(&sys->buffer_cond_mutex);
while (atomic_load(&sys->input_in_transit) ||
atomic_load(&sys->output_in_transit)) {
vlc_cond_wait(&sys->buffer_cond, &sys->buffer_cond_mutex);
}
vlc_mutex_unlock(&sys->buffer_cond_mutex);
}
while ((buffer = mmal_queue_get(sys->filtered_pictures))) {
picture_t *pic = (picture_t *)buffer->user_data;
msg_Dbg(filter, "flush: release already filtered pic %p",
(void *)pic);
picture_Release(pic);
}
msg_Dbg(filter, "flush: done");
}
static int FfmpegThread( struct thread_context_t *p_context )
{
while ( !p_context->b_die && !p_context->b_error )
{
vlc_mutex_lock( &p_context->lock );
while ( !p_context->b_work && !p_context->b_die && !p_context->b_error )
{
vlc_cond_wait( &p_context->cond, &p_context->lock );
}
p_context->b_work = 0;
vlc_mutex_unlock( &p_context->lock );
if ( p_context->b_die || p_context->b_error )
break;
if ( p_context->pf_func )
{
p_context->i_ret = p_context->pf_func( p_context->p_context,
p_context->arg );
}
vlc_mutex_lock( &p_context->lock );
p_context->b_done = 1;
vlc_cond_signal( &p_context->cond );
vlc_mutex_unlock( &p_context->lock );
}
return 0;
}
static int
EcoreMainLoopCallSync( vout_display_t *vd, mainloop_cb p_cb )
{
vout_display_sys_t *sys = vd->sys;
struct mainloop_cb_args args = { .vd = vd, .p_cb = p_cb, .b_signal = false };
ecore_main_loop_thread_safe_call_async( EcoreMainLoopCb, &args );
vlc_mutex_lock( &sys->cb_lock );
while( !args.b_signal )
vlc_cond_wait( &sys->cb_wait, &sys->cb_lock );
vlc_mutex_unlock( &sys->cb_lock );
return args.i_ret;
}
#ifdef HAVE_EVAS_CALLBACK_KEY_UP
static void
EventSendKey( vout_display_t *vd, int i_key )
{
vout_display_sys_t *sys = vd->sys;
struct event *p_event = malloc( sizeof(struct event) );
if( !p_event )
return;
p_event->i_type = VOUT_DISPLAY_EVENT_KEY;
p_event->u.i_key = i_key;
EVENT_FIFO_PUSH( p_event );
}
static int
dialog_wait(vlc_dialog_provider *p_provider, vlc_dialog_id *p_id,
enum dialog_type i_type, struct dialog_answer *p_answer)
{
struct dialog_i11e_context context = {
.p_provider = p_provider,
.p_id = p_id,
};
vlc_interrupt_register(dialog_wait_interrupted, &context);
vlc_mutex_lock(&p_id->lock);
/* Wait for the dialog to be dismissed, interrupted or answered */
while (!p_id->b_cancelled && !p_id->b_answered)
vlc_cond_wait(&p_id->wait, &p_id->lock);
int i_ret;
if (p_id->b_cancelled)
i_ret = 0;
else if (p_id->answer.i_type != i_type)
i_ret = VLC_EGENERIC;
else
{
i_ret = 1;
memcpy(p_answer, &p_id->answer, sizeof(p_id->answer));
memset(&p_id->answer, 0, sizeof(p_id->answer));
}
vlc_mutex_unlock(&p_id->lock);
vlc_interrupt_unregister();
vlc_mutex_lock(&p_provider->lock);
dialog_remove_locked(p_provider, p_id);
vlc_mutex_unlock(&p_provider->lock);
return i_ret;
}
/**
* main SAP handler thread
* \param p_this the SAP Handler object
* \return nothing
*/
static void *RunThread (void *self)
{
sap_address_t *addr = self;
vlc_mutex_lock (&addr->lock);
mutex_cleanup_push (&addr->lock);
for (;;)
{
sap_session_t *p_session;
mtime_t deadline;
while (addr->first == NULL)
vlc_cond_wait (&addr->wait, &addr->lock);
assert (addr->session_count > 0);
deadline = mdate ();
for (p_session = addr->first; p_session; p_session = p_session->next)
{
send (addr->fd, p_session->data, p_session->length, 0);
deadline += addr->interval * CLOCK_FREQ / addr->session_count;
if (vlc_cond_timedwait (&addr->wait, &addr->lock, deadline) == 0)
break; /* list may have changed! */
}
}
vlc_cleanup_pop ();
assert (0);
}
/**
* Run the main control thread itself
*/
static void *Thread ( void *data )
{
playlist_t *p_playlist = data;
playlist_private_t *p_sys = pl_priv(p_playlist);
playlist_Lock( p_playlist );
while( vlc_object_alive( p_playlist ) || p_sys->p_input )
{
/* FIXME: what's that ! */
if( p_sys->b_reset_currently_playing &&
mdate() - p_sys->last_rebuild_date > 30000 ) // 30 ms
{
ResetCurrentlyPlaying( p_playlist,
get_current_status_item( p_playlist ) );
p_sys->last_rebuild_date = mdate();
}
/* If there is an input, check that it doesn't need to die. */
while( !LoopInput( p_playlist ) )
vlc_cond_wait( &p_sys->signal, &p_sys->lock );
LoopRequest( p_playlist );
}
playlist_Unlock( p_playlist );
return NULL;
}
static void BackgroundWorkerCancel( struct background_worker* worker, void* id)
{
vlc_mutex_lock( &worker->lock );
for( size_t i = 0; i < vlc_array_count( &worker->tail.data ); )
{
struct bg_queued_item* item =
vlc_array_item_at_index( &worker->tail.data, i );
if( id == NULL || item->id == id )
{
vlc_array_remove( &worker->tail.data, i );
worker->conf.pf_release( item->entity );
free( item );
continue;
}
++i;
}
while( ( id == NULL && worker->head.active )
|| ( id != NULL && worker->head.id == id ) )
{
worker->head.deadline = VLC_TS_0;
vlc_cond_signal( &worker->head.worker_wait );
vlc_cond_signal( &worker->tail.wait );
vlc_cond_wait( &worker->head.wait, &worker->lock );
}
vlc_mutex_unlock( &worker->lock );
}
/*****************************************************************************
* Thread:
*****************************************************************************/
static void *Thread( void *p_thread_data )
{
goom_thread_t *p_thread = (goom_thread_t*)p_thread_data;
date_t i_pts;
int16_t p_data[2][512];
int i_data = 0, i_count = 0;
PluginInfo *p_plugin_info;
int canc = vlc_savecancel ();
p_plugin_info = goom_init( p_thread->i_width, p_thread->i_height );
for( ;; )
{
uint32_t *plane;
picture_t *p_pic;
/* FIXME the way the update is done is not really good.
* Supurious wake up from p_thread->wait will make it generates a frame
* without using new samples (probably rare as we should not be waiting
* samples).
* The frame rate at which the video is generated is not well controlled
* nor the time at which each frame is displayed (not smooth)
*/
/* goom_update is damn slow, so just copy data and release the lock */
vlc_mutex_lock( &p_thread->lock );
if( !p_thread->b_exit &&
FillBuffer( (int16_t *)p_data, &i_data,
&i_pts, &p_thread->date, p_thread ) != VLC_SUCCESS )
vlc_cond_wait( &p_thread->wait, &p_thread->lock );
bool b_exit = p_thread->b_exit;
vlc_mutex_unlock( &p_thread->lock );
if( b_exit )
break;
/* Speed selection */
if( p_thread->i_speed && (++i_count % (p_thread->i_speed+1)) ) continue;
/* Frame dropping if necessary */
if( date_Get( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
plane = goom_update( p_plugin_info, p_data, 0, 0.0,
NULL, NULL );
p_pic = vout_GetPicture( p_thread->p_vout );
if( unlikely(p_pic == NULL) )
continue;
memcpy( p_pic->p[0].p_pixels, plane, p_thread->i_width * p_thread->i_height * 4 );
p_pic->date = date_Get( &i_pts ) + GOOM_DELAY;
vout_PutPicture( p_thread->p_vout, p_pic );
}
goom_close( p_plugin_info );
vlc_restorecancel (canc);
return NULL;
}
/**
* Waits until the variable is inactive (i.e. not executing a callback)
*/
static void WaitUnused(vlc_object_t *obj, variable_t *var)
{
vlc_object_internals_t *priv = vlc_internals(obj);
mutex_cleanup_push(&priv->var_lock);
while (var->b_incallback)
vlc_cond_wait(&priv->var_wait, &priv->var_lock);
vlc_cleanup_pop();
}
/*****************************************************************************
* Run: Thread entry-point
****************************************************************************/
static void* Run( void *data )
{
services_discovery_t *p_sd = ( services_discovery_t * )data;
services_discovery_sys_t *p_sys = p_sd->p_sys;
lua_State *L = p_sys->L;
int cancel = vlc_savecancel();
lua_getglobal( L, "main" );
if( !lua_isfunction( L, lua_gettop( L ) ) || lua_pcall( L, 0, 1, 0 ) )
{
msg_Err( p_sd, "Error while running script %s, "
"function main(): %s", p_sys->psz_filename,
lua_tostring( L, lua_gettop( L ) ) );
lua_pop( L, 1 );
vlc_restorecancel( cancel );
return NULL;
}
msg_Dbg( p_sd, "LuaSD script loaded: %s", p_sys->psz_filename );
/* Force garbage collection, because the core will keep the SD
* open, but lua will never gc until lua_close(). */
lua_gc( L, LUA_GCCOLLECT, 0 );
vlc_restorecancel( cancel );
/* Main loop to handle search requests */
vlc_mutex_lock( &p_sys->lock );
mutex_cleanup_push( &p_sys->lock );
while( !p_sys->b_exiting )
{
/* Wait for a request */
while( !p_sys->i_query )
vlc_cond_wait( &p_sys->cond, &p_sys->lock );
/* Execute every query each one protected against cancelation */
cancel = vlc_savecancel();
while( !p_sys->b_exiting && p_sys->i_query )
{
char *psz_query = p_sys->ppsz_query[p_sys->i_query - 1];
REMOVE_ELEM( (char **), p_sys->ppsz_query, p_sys->i_query, p_sys->i_query - 1 ); // sunqueen modify
vlc_mutex_unlock( &p_sys->lock );
DoSearch( p_sd, psz_query );
free( psz_query );
vlc_mutex_lock( &p_sys->lock );
}
/* Force garbage collection, because the core will keep the SD
* open, but lua will never gc until lua_close(). */
lua_gc( L, LUA_GCCOLLECT, 0 );
vlc_restorecancel( cancel );
}
vlc_cleanup_run();
return NULL;
}
/**************************************************************************
* Parse the media.
**************************************************************************/
void
libvlc_media_parse(libvlc_media_t *media)
{
preparse_if_needed(media);
vlc_mutex_lock(&media->parsed_lock);
while (!media->is_parsed)
vlc_cond_wait(&media->parsed_cond, &media->parsed_lock);
vlc_mutex_unlock(&media->parsed_lock);
}
void vlc_rwlock_wrlock (vlc_rwlock_t *lock)
{
vlc_mutex_lock (&lock->mutex);
/* Wait until nobody owns the lock in either way. */
while ((lock->readers > 0) || (lock->writer != 0))
vlc_cond_wait (&lock->wait, &lock->mutex);
assert (lock->writer == 0);
lock->writer = GetCurrentThreadId ();
vlc_mutex_unlock (&lock->mutex);
}
static void LoopRequest( playlist_t *p_playlist )
{
playlist_private_t *p_sys = pl_priv(p_playlist);
assert( !p_sys->p_input );
/* No input. Several cases
* - No request, running status -> start new item
* - No request, stopped status -> collect garbage
* - Request, running requested -> start new item
* - Request, stopped requested -> collect garbage
*/
const int i_status = p_sys->request.b_request ?
p_sys->request.i_status : p_sys->status.i_status;
if( i_status == PLAYLIST_STOPPED || !vlc_object_alive( p_playlist ) )
{
p_sys->status.i_status = PLAYLIST_STOPPED;
if( p_sys->p_input_resource &&
input_resource_HasVout( p_sys->p_input_resource ) )
{
/* XXX We can unlock if we don't issue the wait as we will be
* call again without anything else done between the calls */
PL_UNLOCK;
/* input_resource_t must be manipulated without playlist lock */
input_resource_TerminateVout( p_sys->p_input_resource );
PL_LOCK;
}
else
{
if( vlc_object_alive( p_playlist ) )
vlc_cond_wait( &p_sys->signal, &p_sys->lock );
}
return;
}
playlist_item_t *p_item = NextItem( p_playlist );
if( p_item )
{
msg_Dbg( p_playlist, "starting playback of the new playlist item" );
PlayItem( p_playlist, p_item );
return;
}
msg_Dbg( p_playlist, "nothing to play" );
p_sys->status.i_status = PLAYLIST_STOPPED;
if( var_GetBool( p_playlist, "play-and-exit" ) )
{
msg_Info( p_playlist, "end of playlist, exiting" );
libvlc_Quit( p_playlist->p_libvlc );
}
}
/**
* Receives stream data.
*
* Dequeues pending incoming data for an HTTP/2 stream. If there is currently
* no data block, wait for one.
*
* \return a VLC data block, or NULL on stream error or end of stream
*/
static block_t *vlc_h2_stream_read(struct vlc_http_stream *stream)
{
struct vlc_h2_stream *s = (struct vlc_h2_stream *)stream;
struct vlc_h2_conn *conn = s->conn;
struct vlc_h2_frame *f;
vlc_h2_stream_lock(s);
while ((f = s->recv_head) == NULL && !s->recv_end && !s->interrupted)
{
mutex_cleanup_push(&conn->lock);
vlc_cond_wait(&s->recv_wait, &conn->lock);
vlc_cleanup_pop();
}
if (f == NULL)
{
vlc_h2_stream_unlock(s);
return NULL;
}
s->recv_head = f->next;
if (f->next == NULL)
{
assert(s->recv_tailp == &f->next);
s->recv_tailp = &s->recv_head;
}
/* Credit the receive window if missing credit exceeds 50%. */
uint_fast32_t credit = VLC_H2_INIT_WINDOW - s->recv_cwnd;
if (credit >= (VLC_H2_INIT_WINDOW / 2)
&& !vlc_h2_output_send(conn->out,
vlc_h2_frame_window_update(s->id, credit)))
s->recv_cwnd += credit;
vlc_h2_stream_unlock(s);
/* This, err, unconventional code to avoid copying data. */
block_t *block = block_heap_Alloc(f, sizeof (*f) + vlc_h2_frame_size(f));
if (unlikely(block == NULL))
{
free(f);
vlc_h2_stream_error(conn, s->id, VLC_H2_INTERNAL_ERROR);
return NULL;
}
size_t len;
uint8_t *buf = vlc_h2_frame_data_get(f, &len);
assert(block->i_buffer >= len);
assert(block->p_buffer <= buf);
assert(block->p_buffer + block->i_buffer >= buf + len);
block->p_buffer = buf;
block->i_buffer = len;
return block;
}
/**
* Destroys an initialized timer. If needed, the timer is first disarmed.
* This function is undefined if the specified timer is not initialized.
*
* @warning This function <b>must</b> be called before the timer data can be
* freed and before the timer callback function can be unloaded.
*
* @param timer timer to destroy
*/
void vlc_timer_destroy (vlc_timer_t timer)
{
vlc_timer_schedule (timer, false, 0, 0);
vlc_mutex_lock (&timer->lock);
while (timer->users != 0)
vlc_cond_wait (&timer->wait, &timer->lock);
vlc_mutex_unlock (&timer->lock);
vlc_cond_destroy (&timer->wait);
vlc_mutex_destroy (&timer->lock);
free (timer);
}
static void* EncoderThread( void *obj )
{
sout_stream_sys_t *p_sys = (sout_stream_sys_t*)obj;
sout_stream_id_sys_t *id = p_sys->id_video;
picture_t *p_pic = NULL;
int canc = vlc_savecancel ();
block_t *p_block = NULL;
vlc_mutex_lock( &p_sys->lock_out );
for( ;; )
{
while( !p_sys->b_abort &&
(p_pic = picture_fifo_Pop( p_sys->pp_pics )) == NULL )
vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
if( p_pic )
{
/* release lock while encoding */
vlc_mutex_unlock( &p_sys->lock_out );
p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
picture_Release( p_pic );
vlc_mutex_lock( &p_sys->lock_out );
block_ChainAppend( &p_sys->p_buffers, p_block );
}
if( p_sys->b_abort )
break;
}
/*Encode what we have in the buffer on closing*/
while( (p_pic = picture_fifo_Pop( p_sys->pp_pics )) != NULL )
{
p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
picture_Release( p_pic );
block_ChainAppend( &p_sys->p_buffers, p_block );
}
/*Now flush encoder*/
do {
p_block = id->p_encoder->pf_encode_video(id->p_encoder, NULL );
block_ChainAppend( &p_sys->p_buffers, p_block );
} while( p_block );
vlc_mutex_unlock( &p_sys->lock_out );
vlc_restorecancel (canc);
return NULL;
}
static void vd_display(vout_display_t *vd, picture_t *picture,
subpicture_t *subpicture)
{
vout_display_sys_t *sys = vd->sys;
picture_sys_t *pic_sys = picture->p_sys;
MMAL_BUFFER_HEADER_T *buffer = pic_sys->buffer;
MMAL_STATUS_T status;
if (picture->format.i_frame_rate != sys->i_frame_rate ||
picture->format.i_frame_rate_base != sys->i_frame_rate_base ||
picture->b_progressive != sys->b_progressive ||
picture->b_top_field_first != sys->b_top_field_first) {
sys->b_top_field_first = picture->b_top_field_first;
sys->b_progressive = picture->b_progressive;
sys->i_frame_rate = picture->format.i_frame_rate;
sys->i_frame_rate_base = picture->format.i_frame_rate_base;
configure_display(vd, NULL, &picture->format);
}
if (!pic_sys->displayed || !sys->opaque) {
buffer->cmd = 0;
buffer->length = sys->input->buffer_size;
vlc_mutex_lock(&sys->buffer_mutex);
while (sys->buffers_in_transit >= MAX_BUFFERS_IN_TRANSIT)
vlc_cond_wait(&sys->buffer_cond, &sys->buffer_mutex);
status = mmal_port_send_buffer(sys->input, buffer);
if (status == MMAL_SUCCESS)
++sys->buffers_in_transit;
vlc_mutex_unlock(&sys->buffer_mutex);
if (status != MMAL_SUCCESS) {
msg_Err(vd, "Failed to send buffer to input port. Frame dropped");
picture_Release(picture);
}
pic_sys->displayed = true;
} else {
picture_Release(picture);
}
display_subpicture(vd, subpicture);
if (subpicture)
subpicture_Delete(subpicture);
if (sys->next_phase_check == 0 && sys->adjust_refresh_rate)
maintain_phase_sync(vd);
sys->next_phase_check = (sys->next_phase_check + 1) % PHASE_CHECK_INTERVAL;
}
static int media_parse(libvlc_media_t *media, bool b_async,
libvlc_media_parse_flag_t parse_flag)
{
bool needed;
vlc_mutex_lock(&media->parsed_lock);
needed = !media->has_asked_preparse;
media->has_asked_preparse = true;
if (needed)
media->is_parsed = false;
vlc_mutex_unlock(&media->parsed_lock);
if (needed)
{
libvlc_int_t *libvlc = media->p_libvlc_instance->p_libvlc_int;
input_item_t *item = media->p_input_item;
input_item_meta_request_option_t art_scope = META_REQUEST_OPTION_NONE;
input_item_meta_request_option_t parse_scope = META_REQUEST_OPTION_SCOPE_LOCAL;
int ret;
if (parse_flag & libvlc_media_fetch_local)
art_scope |= META_REQUEST_OPTION_SCOPE_LOCAL;
if (parse_flag & libvlc_media_fetch_network)
art_scope |= META_REQUEST_OPTION_SCOPE_NETWORK;
if (art_scope != META_REQUEST_OPTION_NONE) {
ret = libvlc_ArtRequest(libvlc, item, art_scope);
if (ret != VLC_SUCCESS)
return ret;
}
if (parse_flag & libvlc_media_parse_network)
parse_scope |= META_REQUEST_OPTION_SCOPE_NETWORK;
if (parse_flag & libvlc_media_do_interact)
parse_scope |= META_REQUEST_OPTION_DO_INTERACT;
ret = libvlc_MetaRequest(libvlc, item, parse_scope);
if (ret != VLC_SUCCESS)
return ret;
}
else
return VLC_EGENERIC;
if (!b_async)
{
vlc_mutex_lock(&media->parsed_lock);
while (!media->is_parsed)
vlc_cond_wait(&media->parsed_cond, &media->parsed_lock);
vlc_mutex_unlock(&media->parsed_lock);
}
return VLC_SUCCESS;
}
void vlc_rwlock_wrlock (vlc_rwlock_t *lock)
{
vlc_mutex_lock (&lock->mutex);
if (unlikely(lock->writers == ULONG_MAX))
abort ();
lock->writers++;
/* Wait until nobody owns the lock in either way. */
while ((lock->readers > 0) || (lock->writer != 0))
vlc_cond_wait (&lock->wait, &lock->mutex);
lock->writers--;
assert (lock->writer == 0);
lock->writer = _gettid ();
vlc_mutex_unlock (&lock->mutex);
}
/*****************************************************************************
* Close: close the audio device
*****************************************************************************/
static void Close ( vlc_object_t *p_this )
{
audio_output_t *p_aout = (audio_output_t *)p_this;
aout_sys_t *p_sys = p_aout->sys;
msg_Dbg( p_aout, "closing portaudio");
#ifdef PORTAUDIO_IS_SERIOUSLY_BROKEN
/* Signal end of stream */
vlc_mutex_lock( &pa_thread->lock_signal );
pa_thread->b_signal = true;
vlc_cond_signal( &pa_thread->signal );
vlc_mutex_unlock( &pa_thread->lock_signal );
/* Wait until thread is ready */
vlc_mutex_lock( &pa_thread->lock_wait );
while( !pa_thread->b_wait )
vlc_cond_wait( &pa_thread->wait, &pa_thread->lock_wait );
vlc_mutex_unlock( &pa_thread->lock_wait );
pa_thread->b_wait = false;
#else
int i_err = Pa_StopStream( p_sys->p_stream );
if( i_err != paNoError )
{
msg_Err( p_aout, "Pa_StopStream: %d (%s)", i_err,
Pa_GetErrorText( i_err ) );
}
i_err = Pa_CloseStream( p_sys->p_stream );
if( i_err != paNoError )
{
msg_Err( p_aout, "Pa_CloseStream: %d (%s)", i_err,
Pa_GetErrorText( i_err ) );
}
i_err = Pa_Terminate();
if( i_err != paNoError )
{
msg_Err( p_aout, "Pa_Terminate: %d (%s)", i_err,
Pa_GetErrorText( i_err ) );
}
#endif
msg_Dbg( p_aout, "portaudio closed");
aout_PacketDestroy( p_aout );
free( p_sys );
}
static void* EncoderThread( vlc_object_t* p_this )
{
sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_this;
sout_stream_id_t *id = p_sys->id_video;
picture_t *p_pic;
int canc = vlc_savecancel ();
while( vlc_object_alive (p_sys) && !p_sys->b_error )
{
block_t *p_block;
vlc_mutex_lock( &p_sys->lock_out );
while( p_sys->i_last_pic == p_sys->i_first_pic )
{
vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
if( !vlc_object_alive (p_sys) || p_sys->b_error ) break;
}
if( !vlc_object_alive (p_sys) || p_sys->b_error )
{
vlc_mutex_unlock( &p_sys->lock_out );
break;
}
p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
p_sys->i_first_pic %= PICTURE_RING_SIZE;
vlc_mutex_unlock( &p_sys->lock_out );
video_timer_start( id->p_encoder );
p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
video_timer_stop( id->p_encoder );
vlc_mutex_lock( &p_sys->lock_out );
block_ChainAppend( &p_sys->p_buffers, p_block );
vlc_mutex_unlock( &p_sys->lock_out );
picture_Release( p_pic );
}
while( p_sys->i_last_pic != p_sys->i_first_pic )
{
p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
p_sys->i_first_pic %= PICTURE_RING_SIZE;
picture_Release( p_pic );
}
block_ChainRelease( p_sys->p_buffers );
vlc_restorecancel (canc);
return NULL;
}
void vlc_rwlock_rdlock (vlc_rwlock_t *lock)
{
vlc_mutex_lock (&lock->mutex);
/* Recursive read-locking is allowed. We only need to ensure that there is
* no active writer. */
while (lock->writer != 0)
{
assert (lock->readers == 0);
vlc_cond_wait (&lock->wait, &lock->mutex);
}
if (unlikely(lock->readers == ULONG_MAX))
abort ();
lock->readers++;
vlc_mutex_unlock (&lock->mutex);
}
/****************************************************************************
* HttpCallback: Return the index.html file
****************************************************************************/
static int HttpCallback( httpd_file_sys_t *p_args,
httpd_file_t *p_file,
uint8_t *_psz_request,
uint8_t **_pp_data, int *pi_data )
{
VLC_UNUSED(p_file);
access_sys_t *p_sys = p_args->p_access->p_sys;
char *psz_request = (char *)_psz_request;
char **pp_data = (char **)_pp_data;
vlc_mutex_lock( &p_sys->httpd_mutex );
p_sys->i_httpd_timeout = mdate() + INT64_C(3000000); /* 3 s */
p_sys->psz_request = psz_request;
p_sys->b_request_frontend_info = true;
if ( p_sys->p_cam != NULL )
{
p_sys->b_request_mmi_info = true;
}
else
{
p_sys->psz_mmi_info = strdup( "No available CAM interface\n" );
}
do
{
vlc_cond_wait( &p_sys->httpd_cond, &p_sys->httpd_mutex );
}
while ( p_sys->b_request_frontend_info || p_sys->b_request_mmi_info );
p_sys->i_httpd_timeout = 0;
vlc_mutex_unlock( &p_sys->httpd_mutex );
*pi_data = strlen( psz_constant_header )
+ strlen( p_sys->psz_mmi_info )
+ strlen( psz_constant_middle )
+ strlen( p_sys->psz_frontend_info )
+ strlen( psz_constant_footer ) + 1;
*pp_data = malloc( *pi_data );
sprintf( *pp_data, "%s%s%s%s%s", psz_constant_header,
p_sys->psz_mmi_info, psz_constant_middle,
p_sys->psz_frontend_info, psz_constant_footer );
free( p_sys->psz_frontend_info );
free( p_sys->psz_mmi_info );
return VLC_SUCCESS;
}
VLC_NORETURN
static void *vlc_timer_thread (void *data)
{
struct vlc_timer *timer = data;
vlc_mutex_lock (&timer->lock);
mutex_cleanup_push (&timer->lock);
for (;;)
{
while (timer->value == 0)
vlc_cond_wait (&timer->reschedule, &timer->lock);
if (vlc_cond_timedwait (&timer->reschedule, &timer->lock,
timer->value) == 0)
continue;
if (timer->interval == 0)
timer->value = 0; /* disarm */
vlc_mutex_unlock (&timer->lock);
int canc = vlc_savecancel ();
timer->func (timer->data);
vlc_restorecancel (canc);
mtime_t now = mdate ();
unsigned misses;
vlc_mutex_lock (&timer->lock);
if (timer->interval == 0)
continue;
misses = (now - timer->value) / timer->interval;
timer->value += timer->interval;
/* Try to compensate for one miss (mwait() will return immediately)
* but no more. Otherwise, we might busy loop, after extended periods
* without scheduling (suspend, SIGSTOP, RT preemption, ...). */
if (misses > 1)
{
misses--;
timer->value += misses * timer->interval;
atomic_fetch_add_explicit (&timer->overruns, misses,
memory_order_relaxed);
}
}
vlc_cleanup_pop ();
vlc_assert_unreachable ();
}
/*****************************************************************************
* Run: main thread
*****************************************************************************/
static void *Run( void *data )
{
services_discovery_t *p_sd = data;
services_discovery_sys_t *p_sys = p_sd->p_sys;
vlc_mutex_lock( &p_sys->lock );
mutex_cleanup_push( &p_sys->lock );
for( ;; )
{
while( !p_sys->b_update )
vlc_cond_wait( &p_sys->wait, &p_sys->lock );
int canc = vlc_savecancel ();
msg_Dbg( p_sd, "Update required" );
if( p_sys->update_type == UPDATE_URLS )
{
char* psz_urls = var_GetNonEmptyString( p_sd, "podcast-urls" );
ParseUrls( p_sd, psz_urls );
free( psz_urls );
}
else if( p_sys->update_type == UPDATE_REQUEST )
{
ParseRequest( p_sd );
}
p_sys->b_update = false;
for( int i = 0; i < p_sd->p_sys->i_input; i++ )
{
input_thread_t *p_input = p_sd->p_sys->pp_input[i];
if( p_input->b_eof || p_input->b_error )
{
input_Stop( p_input, false );
vlc_thread_join( p_input );
vlc_object_release( p_input );
p_sd->p_sys->pp_input[i] = NULL;
REMOVE_ELEM( p_sys->pp_input, p_sys->i_input, i );
i--;
}
}
vlc_restorecancel (canc);
}
vlc_cleanup_pop();
assert(0); /* dead code */
}