X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=include%2Fvlc_block.h;h=7b1d6d017dd898361957b938ad14b16936093670;hb=2ebc21a48f9956c48f4111ed67b0e43fe5a52a48;hp=b882b1f8c564cf6b4d8d83f684d97b43c576a838;hpb=ebd800345f87349ff51971ae88c56cb439da4dcf;p=vlc

diff --git a/include/vlc_block.h b/include/vlc_block.h
index b882b1f8c5..7b1d6d017d 100644
--- a/include/vlc_block.h
+++ b/include/vlc_block.h
@@ -68,6 +68,8 @@ typedef struct block_sys_t block_sys_t;
 #define BLOCK_FLAG_END_OF_FRAME  0x0040
 /** This is not a key frame for bitrate shaping */
 #define BLOCK_FLAG_NO_KEYFRAME   0x0080
+/** This block contains the last part of a sequence  */
+#define BLOCK_FLAG_END_OF_SEQUENCE 0x0100
 /** This block contains a clock reference */
 #define BLOCK_FLAG_CLOCK         0x0200
 /** This block is scrambled */
@@ -77,15 +79,22 @@ typedef struct block_sys_t block_sys_t;
 /** This block is corrupted and/or there is data loss  */
 #define BLOCK_FLAG_CORRUPTED     0x1000
 
-#define BLOCK_FLAG_PRIVATE_MASK  0xffff0000
-#define BLOCK_FLAG_PRIVATE_SHIFT 16
+#define BLOCK_FLAG_TYPE_MASK \
+    (BLOCK_FLAG_TYPE_I|BLOCK_FLAG_TYPE_P|BLOCK_FLAG_TYPE_B|BLOCK_FLAG_TYPE_PB)
+
+/* These are for input core private usage only */
+#define BLOCK_FLAG_CORE_PRIVATE_MASK  0x00ff0000
+#define BLOCK_FLAG_CORE_PRIVATE_SHIFT 16
+
+/* These are for module private usage only */
+#define BLOCK_FLAG_PRIVATE_MASK  0xff000000
+#define BLOCK_FLAG_PRIVATE_SHIFT 24
 
 typedef void (*block_free_t) (block_t *);
 
 struct block_t
 {
     block_t     *p_next;
-    block_t     *p_prev;
 
     uint32_t    i_flags;
 
@@ -120,11 +129,12 @@ struct block_t
  * - block_Duplicate : create a copy of a block.
  ****************************************************************************/
 VLC_EXPORT( void,      block_Init,    ( block_t *, void *, size_t ) );
-VLC_EXPORT( block_t *, block_Alloc,   ( size_t ) );
-VLC_EXPORT( block_t *, block_Realloc, ( block_t *, ssize_t i_pre, size_t i_body ) );
+VLC_EXPORT( block_t *, block_Alloc,   ( size_t ) LIBVLC_USED );
+VLC_EXPORT( block_t *, block_Realloc, ( block_t *, ssize_t i_pre, size_t i_body ) LIBVLC_USED );
 
 #define block_New( dummy, size ) block_Alloc(size)
 
+LIBVLC_USED
 static inline block_t *block_Duplicate( block_t *p_block )
 {
     block_t *p_dup = block_Alloc( p_block->i_buffer );
@@ -147,8 +157,14 @@ static inline void block_Release( block_t *p_block )
     p_block->pf_release( p_block );
 }
 
-VLC_EXPORT( block_t *, block_mmap_Alloc, (void *addr, size_t length) );
-VLC_EXPORT( block_t *, block_File, (int fd) );
+VLC_EXPORT( block_t *, block_mmap_Alloc, (void *addr, size_t length) LIBVLC_USED );
+VLC_EXPORT( block_t *, block_File, (int fd) LIBVLC_USED );
+
+static inline void block_Cleanup (void *block)
+{
+    block_Release ((block_t *)block);
+}
+#define block_cleanup_push( block ) vlc_cleanup_push (block_Cleanup, block)
 
 /****************************************************************************
  * Chains of blocks functions helper
@@ -215,20 +231,39 @@ static size_t block_ChainExtract( block_t *p_list, void *p_data, size_t i_max )
     return i_total;
 }
 
+static inline void block_ChainProperties( block_t *p_list, int *pi_count, size_t *pi_size, mtime_t *pi_length )
+{
+    size_t i_size = 0;
+    mtime_t i_length = 0;
+    int i_count = 0;
+
+    while( p_list )
+    {
+        i_size += p_list->i_buffer;
+        i_length += p_list->i_length;
+        i_count++;
+
+        p_list = p_list->p_next;
+    }
+
+    if( pi_size )
+        *pi_size = i_size;
+    if( pi_length )
+        *pi_length = i_length;
+    if( pi_count )
+        *pi_count = i_count;
+}
+
 static inline block_t *block_ChainGather( block_t *p_list )
 {
     size_t  i_total = 0;
     mtime_t i_length = 0;
-    block_t *b, *g;
+    block_t *g;
 
     if( p_list->p_next == NULL )
         return p_list;  /* Already gathered */
 
-    for( b = p_list; b != NULL; b = b->p_next )
-    {
-        i_total += b->i_buffer;
-        i_length += b->i_length;
-    }
+    block_ChainProperties( p_list, NULL, &i_total, &i_length );
 
     g = block_Alloc( i_total );
     block_ChainExtract( p_list, g->p_buffer, g->i_buffer );
@@ -255,19 +290,22 @@ static inline block_t *block_ChainGather( block_t *p_list )
  *      needed), be carefull, you can use it ONLY if you are sure to be the
  *      only one getting data from the fifo.
  * - block_FifoCount : how many packets are waiting in the fifo
- * - block_FifoSize : how many cumulated bytes are waiting in the fifo
  * - block_FifoWake : wake ups a thread with block_FifoGet() = NULL
  *   (this is used to wakeup a thread when there is no data to queue)
+ *
+ * block_FifoGet and block_FifoShow are cancellation points.
  ****************************************************************************/
 
-VLC_EXPORT( block_fifo_t *, block_FifoNew,      ( void ) );
+VLC_EXPORT( block_fifo_t *, block_FifoNew,      ( void ) LIBVLC_USED );
 VLC_EXPORT( void,           block_FifoRelease,  ( block_fifo_t * ) );
+/* TODO: do we need to export this? */
+void block_FifoPace (block_fifo_t *fifo, size_t max_depth, size_t max_size);
 VLC_EXPORT( void,           block_FifoEmpty,    ( block_fifo_t * ) );
 VLC_EXPORT( size_t,         block_FifoPut,      ( block_fifo_t *, block_t * ) );
 VLC_EXPORT( void,           block_FifoWake,     ( block_fifo_t * ) );
-VLC_EXPORT( block_t *,      block_FifoGet,      ( block_fifo_t * ) );
+VLC_EXPORT( block_t *,      block_FifoGet,      ( block_fifo_t * ) LIBVLC_USED );
 VLC_EXPORT( block_t *,      block_FifoShow,     ( block_fifo_t * ) );
-VLC_EXPORT( size_t,         block_FifoSize,     ( const block_fifo_t *p_fifo ) );
-VLC_EXPORT( size_t,         block_FifoCount,    ( const block_fifo_t *p_fifo ) );
+size_t block_FifoSize( const block_fifo_t *p_fifo ) LIBVLC_USED;
+VLC_EXPORT( size_t,         block_FifoCount,    ( const block_fifo_t *p_fifo ) LIBVLC_USED );
 
 #endif /* VLC_BLOCK_H */