新增视频流播放

2020-04-22 14:37:21 +08:00
parent 9d8ff1c5cb
commit 08132be41f
915 changed files with 231380 additions and 1 deletions
--- a/vlcdemo/vlc/vlc2/include/plugins/vlc_picture_pool.h
+++ b/vlcdemo/vlc/vlc2/include/plugins/vlc_picture_pool.h
@@ -0,0 +1,126 @@
+/*****************************************************************************
+ * vlc_picture_pool.h: picture pool definitions
+ *****************************************************************************
+ * Copyright (C) 2009 VLC authors and VideoLAN
+ * $Id: d4574dc5a1dfd2d873c6f286ee612462f886bb33 $
+ *
+ * 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 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.
+ *****************************************************************************/
+
+#ifndef VLC_PICTURE_POOL_H
+#define VLC_PICTURE_POOL_H 1
+
+/**
+ * \file
+ * This file defines picture pool structures and functions in vlc
+ */
+
+#include <vlc_picture.h>
+
+/**
+ * Picture pool handle
+ *
+ * XXX it is not thread safe, all pool manipulations and picture_Release
+ * must be properly locked if needed.
+ */
+typedef struct picture_pool_t picture_pool_t;
+
+/**
+ * Picture pool configuration
+ */
+typedef struct {
+    int       picture_count;
+    picture_t **picture;
+
+    int       (*lock)(picture_t *);
+    void      (*unlock)(picture_t *);
+} picture_pool_configuration_t;
+
+/**
+ * It creates a picture_pool_t wrapping the given configuration.
+ *
+ * It avoids useless picture creations/destructions.
+ * The given picture must not have a reference count greater than 1.
+ * The pool takes ownership of the picture and MUST not be used directly.
+ * When deleted, the pool will release the pictures using picture_Release.
+ * If defined, picture_pool_configuration_t::lock will be called before
+ * a picture is used, and picture_pool_configuration_t::unlock will be called
+ * as soon as a picture is unused. They are allowed to modify picture_t::p and
+ * access picture_t::p_sys.
+ */
+VLC_API picture_pool_t * picture_pool_NewExtended( const picture_pool_configuration_t * ) VLC_USED;
+
+/**
+ * It creates a picture_pool_t wrapping the given arrays of picture.
+ *
+ * It is provided as convenience.
+ */
+VLC_API picture_pool_t * picture_pool_New( int picture_count, picture_t *picture[] ) VLC_USED;
+
+/**
+ * It creates a picture_pool_t creating images using the given format.
+ *
+ * Provided for convenience.
+ */
+VLC_API picture_pool_t * picture_pool_NewFromFormat( const video_format_t *, int picture_count ) VLC_USED;
+
+/**
+ * It destroys a pool created by picture_pool_New.
+ *
+ * All pictures must already be released to the pool. The pool will then
+ * released them.
+ */
+VLC_API void picture_pool_Delete( picture_pool_t * );
+
+/**
+ * It retreives a picture_t from a pool.
+ *
+ * The picture must be release by using picture_Release.
+ */
+VLC_API picture_t * picture_pool_Get( picture_pool_t * ) VLC_USED;
+
+/**
+ * It forces the next picture_pool_Get to return a picture even if no
+ * pictures are free.
+ *
+ * If b_reset is true, all pictures will be marked as free.
+ *
+ * It does it by releasing itself the oldest used picture if none is
+ * available.
+ * XXX it should be used with great care, the only reason you may need
+ * it is to workaround a bug.
+ */
+VLC_API void picture_pool_NonEmpty( picture_pool_t *, bool reset );
+
+/**
+ * It reserves picture_count pictures from the given pool and returns
+ * a new pool with thoses pictures.
+ *
+ * The master pool must be full.
+ * The returned pool must be deleted before the master pool.
+ * When deleted, all pictures return to the master pool.
+ */
+VLC_API picture_pool_t * picture_pool_Reserve(picture_pool_t *, int picture_count) VLC_USED;
+
+/**
+ * It returns the size of the given pool.
+ */
+VLC_API int picture_pool_GetSize(picture_pool_t *);
+
+
+#endif /* VLC_PICTURE_POOL_H */
+