1 files changed, 252 insertions, 0 deletions
diff --git a/debian/transcode/transcode-1.1.7/import/frame_info.c b/debian/transcode/transcode-1.1.7/import/frame_info.c
new file mode 100644
index 00000000..2ac1d942
--- /dev/null
+++ b/debian/transcode/transcode-1.1.7/import/frame_info.c
@@ -0,0 +1,252 @@
+/*
+ *  frame_info.c
+ *
+ *  Copyright (C) Thomas Oestreich - June 2001
+ *
+ *  This file is part of transcode, a video stream processing tool
+ *
+ *  transcode 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, or (at your option)
+ *  any later version.
+ *
+ *  transcode 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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GNU Make; see the file COPYING.  If not, write to
+ *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include "libtc/libtc.h"
+#include "frame_info.h"
+
+pthread_mutex_t frame_info_list_lock=PTHREAD_MUTEX_INITIALIZER;
+
+frame_info_list_t *frame_info_list_head;
+frame_info_list_t *frame_info_list_tail;
+
+frame_info_list_t *frame_info_register(int id)
+
+{
+
+  /* objectives:
+     ===========
+
+     register new frame
+
+     allocate space for frame buffer and establish backward reference
+
+     requirements:
+     =============
+
+     thread-safe
+
+     global mutex: frame_info_list_lock
+
+  */
+
+  frame_info_list_t *ptr;
+
+  pthread_mutex_lock(&frame_info_list_lock);
+
+  // retrive a valid pointer from the pool
+
+
+  if((ptr = tc_malloc(sizeof(frame_info_list_t))) == NULL) {
+      pthread_mutex_unlock(&frame_info_list_lock);
+      return(NULL);
+  }
+
+  ptr->status = FRAME_INFO_EMPTY;
+
+  ptr->next = NULL;
+  ptr->prev = NULL;
+
+  ptr->id  = id;
+
+ if(frame_info_list_tail != NULL)
+    {
+      frame_info_list_tail->next = ptr;
+      ptr->prev = frame_info_list_tail;
+    }
+
+  frame_info_list_tail = ptr;
+
+  /* first frame registered must set frame_info_list_head */
+
+  if(frame_info_list_head == NULL) frame_info_list_head = ptr;
+
+  pthread_mutex_unlock(&frame_info_list_lock);
+
+  return(ptr);
+
+}
+
+
+/* ------------------------------------------------------------------ */
+
+
+void frame_info_remove(frame_info_list_t *ptr)
+
+{
+
+  /* objectives:
+     ===========
+
+     remove frame from chained list
+
+     requirements:
+     =============
+
+     thread-safe
+
+  */
+
+
+  if(ptr == NULL) return;         // do nothing if null pointer
+
+  pthread_mutex_lock(&frame_info_list_lock);
+
+  if(ptr->prev != NULL) (ptr->prev)->next = ptr->next;
+  if(ptr->next != NULL) (ptr->next)->prev = ptr->prev;
+
+  if(ptr == frame_info_list_tail) frame_info_list_tail = ptr->prev;
+  if(ptr == frame_info_list_head) frame_info_list_head = ptr->next;
+
+  // release valid pointer to pool
+  ptr->status = FRAME_INFO_EMPTY;
+
+  free(ptr->sync_info);
+
+  free(ptr);
+
+  pthread_mutex_unlock(&frame_info_list_lock);
+
+}
+
+
+/* ------------------------------------------------------------------ */
+
+
+frame_info_list_t *frame_info_retrieve()
+
+{
+
+  /* objectives:
+     ===========
+
+     get pointer to next frame for rendering
+
+     requirements:
+     =============
+
+     thread-safe
+
+  */
+
+  frame_info_list_t *ptr;
+
+  pthread_mutex_lock(&frame_info_list_lock);
+
+  ptr = frame_info_list_head;
+
+  /* move along the chain and check for status */
+
+  while(ptr != NULL)
+    {
+      if(ptr->status == FRAME_INFO_READY)
+	{
+	  pthread_mutex_unlock(&frame_info_list_lock);
+	  return(ptr);
+	}
+      ptr = ptr->next;
+    }
+
+  pthread_mutex_unlock(&frame_info_list_lock);
+
+  return(NULL);
+}
+
+/* ------------------------------------------------------------------ */
+
+
+frame_info_list_t *frame_info_retrieve_status(int old_status, int new_status)
+
+{
+
+  /* objectives:
+     ===========
+
+     get pointer to next frame for rendering
+
+     requirements:
+     =============
+
+     thread-safe
+
+  */
+
+  frame_info_list_t *ptr;
+
+  pthread_mutex_lock(&frame_info_list_lock);
+
+  ptr = frame_info_list_head;
+
+  /* move along the chain and check for status */
+
+  while(ptr != NULL)
+    {
+      if(ptr->status == old_status)
+	{
+
+	    // found matching frame
+
+	    ptr->status = new_status;
+
+	    pthread_mutex_unlock(&frame_info_list_lock);
+
+	    return(ptr);
+	}
+      ptr = ptr->next;
+    }
+
+  pthread_mutex_unlock(&frame_info_list_lock);
+
+  return(NULL);
+}
+
+
+/* ------------------------------------------------------------------ */
+
+
+void frame_info_set_status(frame_info_list_t *ptr, int status)
+
+{
+
+  /* objectives:
+     ===========
+
+     get pointer to next frame for rendering
+
+     requirements:
+     =============
+
+     thread-safe
+
+  */
+
+    if(ptr == NULL) return;
+
+    pthread_mutex_lock(&frame_info_list_lock);
+
+    ptr->status = status;
+
+    pthread_mutex_unlock(&frame_info_list_lock);
+
+    return;
+}
+