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authorJan Schmidt <thaytan@mad.scientist.com>2008-07-11 14:06:08 +0000
committerJan Schmidt <thaytan@mad.scientist.com>2008-07-11 14:06:08 +0000
commit9a392ef442ef284f63c36ef3690445e5938a046a (patch)
treef648a0b8f712c94cfd1dd8a3c4cd373477b560f5 /ext/resindvd/rsnwrappedbuffer.c
parentf79bf9a0fba0c37de0734fd618bbfc499889facf (diff)
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docs/plugins/.cvsignore: Ignore *-undeclared.txt
Original commit message from CVS: * docs/plugins/.cvsignore: Ignore *-undeclared.txt * ext/resindvd/rsnaudiomunge.c: Turn g_print's into debug statements. * ext/resindvd/resin-play: * ext/resindvd/Makefile.am: * ext/resindvd/resindvdbin.c: * ext/resindvd/resindvdbin.h: * ext/resindvd/rsnparsetter.c: * ext/resindvd/rsnparsetter.h: * ext/resindvd/rsnwrappedbuffer.c: * ext/resindvd/rsnwrappedbuffer.h: Add a bloated implementation of a really simple idea: Replace the pixel-aspect-ratio in the output video with a prescribed one when necessary. There must be an easier way. Split the dvdspu out of the resindvdbin and put out the subpicture stream on the subpicture pad. * ext/resindvd/gstmpegdemux.c: Send video-aspect events down the pipe from the demuxer. * ext/resindvd/resindvdsrc.c: * ext/resindvd/resindvdsrc.h: Handle timed-stills somewhat using g_cond_timed_wait, with a FIXME to make it use clock-waiting later. * ext/resindvd/rsnbasesrc.c: Don't overwrite the last_stop in the basesrc segment after a seamless seek.
Diffstat (limited to 'ext/resindvd/rsnwrappedbuffer.c')
-rw-r--r--ext/resindvd/rsnwrappedbuffer.c152
1 files changed, 152 insertions, 0 deletions
diff --git a/ext/resindvd/rsnwrappedbuffer.c b/ext/resindvd/rsnwrappedbuffer.c
new file mode 100644
index 00000000..e394e429
--- /dev/null
+++ b/ext/resindvd/rsnwrappedbuffer.c
@@ -0,0 +1,152 @@
+/* GStreamer
+ * Copyright (C) 2008 Jan Schmidt <thaytan@noraisin.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+
+#include <gst/gst.h>
+
+#include "rsnwrappedbuffer.h"
+
+GST_BOILERPLATE (RsnWrappedBuffer, rsn_wrappedbuffer,
+ GstBuffer, GST_TYPE_BUFFER);
+
+static gboolean
+rsn_wrapped_buffer_default_release (GstElement * owner, RsnWrappedBuffer * buf);
+
+static void rsn_wrapped_buffer_finalize (RsnWrappedBuffer * wrap_buf);
+
+static void
+rsn_wrappedbuffer_base_init (gpointer gclass)
+{
+}
+
+static void
+rsn_wrappedbuffer_class_init (RsnWrappedBufferClass * klass)
+{
+ GstMiniObjectClass *mini_object_class = GST_MINI_OBJECT_CLASS (klass);
+
+ mini_object_class->finalize = (GstMiniObjectFinalizeFunction)
+ rsn_wrapped_buffer_finalize;
+}
+
+static void
+rsn_wrappedbuffer_init (RsnWrappedBuffer * buf, RsnWrappedBufferClass * gclass)
+{
+ buf->release = rsn_wrapped_buffer_default_release;
+}
+
+static void
+rsn_wrapped_buffer_finalize (RsnWrappedBuffer * wrap_buf)
+{
+ if (wrap_buf->release) {
+ /* Release might increment the refcount to recycle and return TRUE,
+ * in which case, exit without chaining up */
+ if (wrap_buf->release (wrap_buf->owner, wrap_buf))
+ return;
+ }
+
+ GST_MINI_OBJECT_CLASS (parent_class)->finalize (GST_MINI_OBJECT (wrap_buf));
+}
+
+RsnWrappedBuffer *
+rsn_wrapped_buffer_new (GstBuffer * buf_to_wrap)
+{
+ RsnWrappedBuffer *buf;
+ g_return_val_if_fail (buf_to_wrap, NULL);
+
+ buf = (RsnWrappedBuffer *) gst_mini_object_new (RSN_TYPE_WRAPPEDBUFFER);
+ if (buf == NULL)
+ return NULL;
+
+ buf->wrapped_buffer = buf_to_wrap;
+
+ GST_BUFFER_DATA (buf) = GST_BUFFER_DATA (buf_to_wrap);
+ GST_BUFFER_SIZE (buf) = GST_BUFFER_SIZE (buf_to_wrap);
+ gst_buffer_copy_metadata (GST_BUFFER (buf), buf_to_wrap, GST_BUFFER_COPY_ALL);
+
+ /* If the wrapped buffer isn't writable, make sure this one isn't either */
+ if (!gst_buffer_is_writable (buf_to_wrap))
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_READONLY);
+
+ return buf;
+}
+
+void
+rsn_wrapped_buffer_set_owner (RsnWrappedBuffer * wrapped_buf,
+ GstElement * owner)
+{
+ g_return_if_fail (wrapped_buf != NULL);
+
+ if (wrapped_buf->owner)
+ gst_object_unref (wrapped_buf->owner);
+
+ if (owner)
+ wrapped_buf->owner = gst_object_ref (owner);
+ else
+ wrapped_buf->owner = NULL;
+}
+
+void
+rsn_wrapped_buffer_set_releasefunc (RsnWrappedBuffer * wrapped_buf,
+ RsnWrappedBufferReleaseFunc release_func)
+{
+ g_return_if_fail (wrapped_buf != NULL);
+
+ wrapped_buf->release = release_func;
+}
+
+static gboolean
+rsn_wrapped_buffer_default_release (GstElement * owner, RsnWrappedBuffer * buf)
+{
+ g_return_val_if_fail (buf != NULL, FALSE);
+ g_return_val_if_fail (buf->wrapped_buffer != NULL, FALSE);
+
+ gst_buffer_unref (buf->wrapped_buffer);
+ if (buf->owner)
+ gst_object_unref (buf->owner);
+
+ return FALSE;
+}
+
+GstBuffer *
+rsn_wrappedbuffer_unwrap_and_unref (RsnWrappedBuffer * wrap_buf)
+{
+ GstBuffer *buf;
+ gboolean is_readonly;
+
+ g_return_val_if_fail (wrap_buf != NULL, NULL);
+ g_return_val_if_fail (wrap_buf->wrapped_buffer != NULL, NULL);
+
+ buf = gst_buffer_ref (wrap_buf->wrapped_buffer);
+
+ /* Copy changed metadata back to the wrapped buffer from the wrapper,
+ * except the the read-only flag and the caps. */
+ is_readonly = GST_BUFFER_FLAG_IS_SET (wrap_buf, GST_BUFFER_FLAG_READONLY);
+ gst_buffer_copy_metadata (buf, GST_BUFFER (wrap_buf),
+ GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS);
+ if (!is_readonly)
+ GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_READONLY);
+
+ gst_buffer_unref (GST_BUFFER (wrap_buf));
+
+ return buf;
+}