Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / libzmpeg3 / strack.C

diff --git a/cinelerra-5.1/libzmpeg3/strack.C b/cinelerra-5.1/libzmpeg3/strack.C
new file mode 100644 (file)
index 0000000..4bc7097
--- /dev/null
+++ b/cinelerra-5.1/libzmpeg3/strack.C
@@ -0,0 +1,95 @@
+#include "libzmpeg3.h"
+
+zstrack_t::
+strack_t(int zid, video_t *vid)
+{
+  id = zid;
+  video = vid;
+}
+
+zstrack_t::
+~strack_t()
+{
+  if( offsets ) delete [] offsets;
+}
+
+zstrack_t::
+strack_t(zstrack_t &strack)
+{
+  id = strack.id;
+  video = strack.video;
+  allocated_offsets = strack.allocated_offsets;
+  total_offsets = strack.total_offsets;
+  offsets = new int64_t[allocated_offsets];
+  for( int i=0; i<total_offsets; ++i )
+    offsets[i] = strack.offsets[i];
+}
+
+void zstrack_t::
+extend_offsets()
+{
+  if( allocated_offsets <= total_offsets ) {
+    long new_allocation = ZMAX(2*total_offsets, 16);
+    int64_t *new_offsets = new int64_t[new_allocation];
+    for( int i=0; i<total_offsets; ++i )
+      new_offsets[i] = offsets[i];
+    delete [] offsets;
+    offsets = new_offsets;
+    allocated_offsets = new_allocation;
+  }
+}
+
+void zstrack_t::
+append_subtitle_offset(int64_t program_offset)
+{
+  extend_offsets();
+  offsets[total_offsets++] = program_offset;
+}
+
+int zstrack_t::
+append_subtitle(zsubtitle_t *subtitle, int lock)
+{
+  int ret = 1;
+  rwlock.write_enter(lock);
+  if( total_subtitles < MAX_SUBTITLES ) {
+    subtitles[total_subtitles++] = subtitle;
+    subtitle->done = 1;
+    ret = 0;
+  }
+  rwlock.write_leave(lock);
+  return ret;
+}
+
+void zstrack_t::
+del_subtitle(subtitle_t *subtitle, int lock)
+{
+  rwlock.write_enter(lock);
+  int i = 0;
+  while( i<total_subtitles && subtitles[i]!=subtitle ) ++i;
+  if( i < total_subtitles ) {
+    while( ++i<total_subtitles ) subtitles[i-1] = subtitles[i];
+    --total_subtitles;
+  }
+  subtitle->draw = subtitle->done = -1;
+  rwlock.write_leave(lock);
+}
+
+void zstrack_t::
+del_all_subtitles()
+{
+  rwlock.write_enter();
+  for( int i=0; i<total_subtitles; ++i ) {
+    subtitle_t *sp = subtitles[i];
+    sp->draw = sp->done = -1;
+    if( sp->force < 0 ) delete sp;
+  }
+  total_subtitles = 0;
+  rwlock.write_leave();
+}
+
+void zstrack_t::
+del_subtitle(int idx, int lock)
+{
+  del_subtitle(subtitles[idx], lock);
+}
+