/*****************************************************************************
* picture_fifo.c : picture fifo functions
*****************************************************************************
- * Copyright (C) 2009 the VideoLAN team
+ * Copyright (C) 2009 VLC authors and VideoLAN
* Copyright (C) 2009 Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
* $Id$
*
* Authors: Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * 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 General Public License for more details.
+ * 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 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.
+ * 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.
*****************************************************************************/
/*****************************************************************************
/*****************************************************************************
*
*****************************************************************************/
-struct picture_fifo_t
-{
+struct picture_fifo_t {
vlc_mutex_t lock;
- picture_t *p_first;
- picture_t **pp_last;
+ picture_t *first;
+ picture_t **last_ptr;
};
-static void PictureFifoReset( picture_fifo_t *p_fifo )
+static void PictureFifoReset(picture_fifo_t *fifo)
{
- p_fifo->p_first = NULL;
- p_fifo->pp_last = &p_fifo->p_first;
+ fifo->first = NULL;
+ fifo->last_ptr = &fifo->first;
}
-static void PictureFifoPush( picture_fifo_t *p_fifo, picture_t *p_picture )
+static void PictureFifoPush(picture_fifo_t *fifo, picture_t *picture)
{
- assert( !p_picture->p_next );
- *p_fifo->pp_last = p_picture;
- p_fifo->pp_last = &p_picture->p_next;
+ assert(!picture->p_next);
+ *fifo->last_ptr = picture;
+ fifo->last_ptr = &picture->p_next;
}
-static picture_t *PictureFifoPop( picture_fifo_t *p_fifo )
+static picture_t *PictureFifoPop(picture_fifo_t *fifo)
{
- picture_t *p_picture = p_fifo->p_first;
+ picture_t *picture = fifo->first;
- if( p_picture )
- {
- p_fifo->p_first = p_picture->p_next;
- if( !p_fifo->p_first )
- p_fifo->pp_last = &p_fifo->p_first;
+ if (picture) {
+ fifo->first = picture->p_next;
+ if (!fifo->first)
+ fifo->last_ptr = &fifo->first;
+ picture->p_next = NULL;
}
- return p_picture;
+ return picture;
}
picture_fifo_t *picture_fifo_New(void)
{
- picture_fifo_t *p_fifo = malloc( sizeof(*p_fifo) );
- if( !p_fifo )
+ picture_fifo_t *fifo = malloc(sizeof(*fifo));
+ if (!fifo)
return NULL;
- vlc_mutex_init( &p_fifo->lock );
- PictureFifoReset( p_fifo );
- return p_fifo;
+ vlc_mutex_init(&fifo->lock);
+ PictureFifoReset(fifo);
+ return fifo;
}
-void picture_fifo_Push( picture_fifo_t *p_fifo, picture_t *p_picture )
+void picture_fifo_Push(picture_fifo_t *fifo, picture_t *picture)
{
- vlc_mutex_lock( &p_fifo->lock );
- PictureFifoPush( p_fifo, p_picture );
- vlc_mutex_unlock( &p_fifo->lock );
+ vlc_mutex_lock(&fifo->lock);
+ PictureFifoPush(fifo, picture);
+ vlc_mutex_unlock(&fifo->lock);
}
-picture_t *picture_fifo_Pop( picture_fifo_t *p_fifo )
+picture_t *picture_fifo_Pop(picture_fifo_t *fifo)
{
- vlc_mutex_lock( &p_fifo->lock );
- picture_t *p_picture = PictureFifoPop( p_fifo );
- vlc_mutex_unlock( &p_fifo->lock );
+ vlc_mutex_lock(&fifo->lock);
+ picture_t *picture = PictureFifoPop(fifo);
+ vlc_mutex_unlock(&fifo->lock);
- return p_picture;
+ return picture;
}
-picture_t *picture_fifo_Peek( picture_fifo_t *p_fifo )
+picture_t *picture_fifo_Peek(picture_fifo_t *fifo)
{
- vlc_mutex_lock( &p_fifo->lock );
- picture_t *p_picture = p_fifo->p_first;
- if( p_picture )
- picture_Hold( p_picture );
- vlc_mutex_unlock( &p_fifo->lock );
+ vlc_mutex_lock(&fifo->lock);
+ picture_t *picture = fifo->first;
+ if (picture)
+ picture_Hold(picture);
+ vlc_mutex_unlock(&fifo->lock);
- return p_picture;
+ return picture;
}
-void picture_fifo_Flush( picture_fifo_t *p_fifo, mtime_t i_date, bool b_below )
+void picture_fifo_Flush(picture_fifo_t *fifo, mtime_t date, bool flush_before)
{
- picture_t *p_picture;
+ picture_t *picture;
- vlc_mutex_lock( &p_fifo->lock );
+ vlc_mutex_lock(&fifo->lock);
- p_picture = p_fifo->p_first;
- PictureFifoReset( p_fifo );
+ picture = fifo->first;
+ PictureFifoReset(fifo);
picture_fifo_t tmp;
- PictureFifoReset( &tmp );
+ PictureFifoReset(&tmp);
- while( p_picture )
- {
- picture_t *p_next = p_picture->p_next;
+ while (picture) {
+ picture_t *next = picture->p_next;
- p_picture->p_next = NULL;
- if( ( b_below && p_picture->date <= i_date ) ||
- ( !b_below && p_picture->date >= i_date ) )
- PictureFifoPush( &tmp, p_picture );
+ picture->p_next = NULL;
+ if (( flush_before && picture->date <= date) ||
+ (!flush_before && picture->date >= date))
+ PictureFifoPush(&tmp, picture);
else
- PictureFifoPush( p_fifo, p_picture );
- p_picture = p_next;
+ PictureFifoPush(fifo, picture);
+ picture = next;
}
- vlc_mutex_unlock( &p_fifo->lock );
+ vlc_mutex_unlock(&fifo->lock);
- for( ;; )
- {
- picture_t *p_picture = PictureFifoPop( &tmp );
- if( !p_picture )
+ for (;;) {
+ picture_t *picture = PictureFifoPop(&tmp);
+ if (!picture)
break;
- picture_Release( p_picture );
+ picture_Release(picture);
}
}
-void picture_fifo_OffsetDate( picture_fifo_t *p_fifo, mtime_t i_delta )
+void picture_fifo_OffsetDate(picture_fifo_t *fifo, mtime_t delta)
{
- vlc_mutex_lock( &p_fifo->lock );
- for( picture_t *p_picture = p_fifo->p_first; p_picture != NULL; )
- {
- p_picture->date += i_delta;
- p_picture = p_picture->p_next;
+ vlc_mutex_lock(&fifo->lock);
+ for (picture_t *picture = fifo->first; picture != NULL;) {
+ picture->date += delta;
+ picture = picture->p_next;
}
- vlc_mutex_unlock( &p_fifo->lock );
+ vlc_mutex_unlock(&fifo->lock);
}
-void picture_fifo_Delete( picture_fifo_t *p_fifo )
+void picture_fifo_Delete(picture_fifo_t *fifo)
{
- picture_fifo_Flush( p_fifo, INT64_MAX, true );
- vlc_mutex_destroy( &p_fifo->lock );
+ picture_fifo_Flush(fifo, INT64_MAX, true);
+ vlc_mutex_destroy(&fifo->lock);
+ free(fifo);
}