mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-03 13:16:04 +00:00
resindvd: Port parsetter element
Port the DVD element which overrides the MPEG encoded pixel-aspect-ratio to match that requested by the DVD VM.
This commit is contained in:
Jan Schmidt
parent
34f5a51b8f
commit
3054545dad
|
|
@ -11,8 +11,7 @@ libgstresindvd_la_SOURCES = \
|
|||
gstmpegdemux.c \
|
||||
gstpesfilter.c \
|
||||
rsninputselector.c \
|
||||
# rsnparsetter.c \
|
||||
# rsnwrappedbuffer.c
|
||||
rsnparsetter.c
|
||||
|
||||
libgstresindvd_la_CFLAGS = $(GST_PLUGINS_BAD_CFLAGS) \
|
||||
$(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) \
|
||||
|
|
@ -31,8 +30,7 @@ noinst_HEADERS = resindvdbin.h \
|
|||
gstmpegdesc.h \
|
||||
gstmpegdemux.h \
|
||||
gstpesfilter.h \
|
||||
rsnparsetter.h \
|
||||
rsnwrappedbuffer.h
|
||||
rsnparsetter.h
|
||||
|
||||
EXTRA_DIST = resin-play resin-play2
|
||||
|
||||
|
|
|
|||
|
|
@ -34,7 +34,7 @@
|
|||
#include "rsninputselector.h"
|
||||
// #include "rsnaudiomunge.h"
|
||||
#include "rsndec.h"
|
||||
// #include "rsnparsetter.h"
|
||||
#include "rsnparsetter.h"
|
||||
|
||||
#include "gstmpegdemux.h"
|
||||
|
||||
|
|
@ -472,7 +472,7 @@ create_elements (RsnDvdBin * dvdbin)
|
|||
return FALSE;
|
||||
|
||||
/* FIXME: Replace identity */
|
||||
if (!try_create_piece (dvdbin, DVD_ELEM_PARSET, "identity", 0, //RSN_TYPE_RSNPARSETTER,
|
||||
if (!try_create_piece (dvdbin, DVD_ELEM_PARSET, NULL, RSN_TYPE_RSNPARSETTER,
|
||||
"rsnparsetter", "Aspect ratio adjustment"))
|
||||
return FALSE;
|
||||
|
||||
|
|
|
|||
|
|
@ -12,7 +12,6 @@
|
|||
#include <string.h>
|
||||
|
||||
#include "rsnparsetter.h"
|
||||
#include "rsnwrappedbuffer.h"
|
||||
|
||||
GST_DEBUG_CATEGORY_STATIC (rsn_parsetter_debug);
|
||||
#define GST_CAT_DEFAULT rsn_parsetter_debug
|
||||
|
|
@ -20,50 +19,47 @@ GST_DEBUG_CATEGORY_STATIC (rsn_parsetter_debug);
|
|||
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
|
||||
GST_PAD_SINK,
|
||||
GST_PAD_ALWAYS,
|
||||
GST_STATIC_CAPS ("video/x-raw-rgb; video/x-raw-yuv")
|
||||
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL))
|
||||
);
|
||||
|
||||
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
|
||||
GST_PAD_SRC,
|
||||
GST_PAD_ALWAYS,
|
||||
GST_STATIC_CAPS ("video/x-raw-rgb; video/x-raw-yuv")
|
||||
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL))
|
||||
);
|
||||
|
||||
static void rsn_parsetter_register_extra (GType rsn_parsetter_type);
|
||||
|
||||
GST_BOILERPLATE_FULL (RsnParSetter, rsn_parsetter, GstElement,
|
||||
GST_TYPE_ELEMENT, rsn_parsetter_register_extra);
|
||||
#define rsn_parsetter_parent_class parent_class
|
||||
G_DEFINE_TYPE_WITH_CODE (RsnParSetter, rsn_parsetter, GST_TYPE_ELEMENT,
|
||||
GST_DEBUG_CATEGORY_INIT (rsn_parsetter_debug, "rsnparsetter", 0,
|
||||
"Resin DVD aspect ratio adjuster"));
|
||||
|
||||
static void rsn_parsetter_finalize (GObject * object);
|
||||
static GstFlowReturn rsn_parsetter_chain (GstPad * pad, GstBuffer * buf);
|
||||
static gboolean rsn_parsetter_sink_event (GstPad * pad, GstEvent * event);
|
||||
static gboolean rsn_parsetter_sink_setcaps (GstPad * pad, GstCaps * caps);
|
||||
static GstFlowReturn rsn_parsetter_sink_bufferalloc (GstPad * pad,
|
||||
guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf);
|
||||
static GstFlowReturn rsn_parsetter_chain (GstPad * pad,
|
||||
RsnParSetter * parset, GstBuffer * buf);
|
||||
static gboolean rsn_parsetter_sink_event (GstPad * pad,
|
||||
RsnParSetter * parset, GstEvent * event);
|
||||
|
||||
static GstCaps *rsn_parsetter_src_getcaps (GstPad * pad);
|
||||
static gboolean rsn_parsetter_src_query (GstPad * pad, RsnParSetter * parset,
|
||||
GstQuery * query);
|
||||
static GstCaps *rsn_parsetter_convert_caps (RsnParSetter * parset,
|
||||
GstCaps * caps, gboolean widescreen);
|
||||
static gboolean rsn_parsetter_check_caps (RsnParSetter * parset,
|
||||
GstCaps * caps);
|
||||
static void rsn_parsetter_update_caps (RsnParSetter * parset, GstCaps * caps);
|
||||
|
||||
static void
|
||||
rsn_parsetter_register_extra (GType rsn_parsetter_type)
|
||||
rsn_parsetter_class_init (RsnParSetterClass * klass)
|
||||
{
|
||||
GST_DEBUG_CATEGORY_INIT (rsn_parsetter_debug, "rsnparsetter", 0,
|
||||
"Resin DVD aspect ratio adjuster");
|
||||
}
|
||||
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
||||
|
||||
static void
|
||||
rsn_parsetter_base_init (gpointer gclass)
|
||||
{
|
||||
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
|
||||
gobject_class->finalize = rsn_parsetter_finalize;
|
||||
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&src_factory));
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&sink_factory));
|
||||
|
||||
gst_element_class_set_metadata (element_class,
|
||||
"Resin Aspect Ratio Setter", "Filter/Video",
|
||||
"Overrides caps on video buffers to force a particular display ratio",
|
||||
|
|
@ -71,34 +67,21 @@ rsn_parsetter_base_init (gpointer gclass)
|
|||
}
|
||||
|
||||
static void
|
||||
rsn_parsetter_class_init (RsnParSetterClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
|
||||
gobject_class = (GObjectClass *) klass;
|
||||
|
||||
gobject_class->finalize = rsn_parsetter_finalize;
|
||||
}
|
||||
|
||||
static void
|
||||
rsn_parsetter_init (RsnParSetter * parset, RsnParSetterClass * gclass)
|
||||
rsn_parsetter_init (RsnParSetter * parset)
|
||||
{
|
||||
parset->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink");
|
||||
gst_pad_set_getcaps_function (parset->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
|
||||
gst_pad_set_chain_function (parset->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (rsn_parsetter_chain));
|
||||
(GstPadChainFunction) GST_DEBUG_FUNCPTR (rsn_parsetter_chain));
|
||||
gst_pad_set_event_function (parset->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (rsn_parsetter_sink_event));
|
||||
gst_pad_set_setcaps_function (parset->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (rsn_parsetter_sink_setcaps));
|
||||
gst_pad_set_bufferalloc_function (parset->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (rsn_parsetter_sink_bufferalloc));
|
||||
(GstPadEventFunction) GST_DEBUG_FUNCPTR (rsn_parsetter_sink_event));
|
||||
GST_PAD_SET_PROXY_CAPS (parset->sinkpad);
|
||||
GST_PAD_SET_PROXY_ALLOCATION (parset->sinkpad);
|
||||
gst_element_add_pad (GST_ELEMENT (parset), parset->sinkpad);
|
||||
|
||||
parset->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
|
||||
gst_pad_set_getcaps_function (parset->srcpad,
|
||||
GST_DEBUG_FUNCPTR (rsn_parsetter_src_getcaps));
|
||||
gst_pad_set_query_function (parset->srcpad,
|
||||
(GstPadQueryFunction) GST_DEBUG_FUNCPTR (rsn_parsetter_src_query));
|
||||
GST_PAD_SET_PROXY_CAPS (parset->srcpad);
|
||||
gst_element_add_pad (GST_ELEMENT (parset), parset->srcpad);
|
||||
|
||||
parset->caps_lock = g_mutex_new ();
|
||||
|
|
@ -119,107 +102,105 @@ rsn_parsetter_finalize (GObject * object)
|
|||
}
|
||||
|
||||
static GstFlowReturn
|
||||
rsn_parsetter_chain (GstPad * pad, GstBuffer * buf)
|
||||
rsn_parsetter_chain (GstPad * pad, RsnParSetter * parset, GstBuffer * buf)
|
||||
{
|
||||
RsnParSetter *parset = RSN_PARSETTER (GST_OBJECT_PARENT (pad));
|
||||
RsnMetaWrapped *meta;
|
||||
|
||||
meta = RSN_META_WRAPPED_GET (buf);
|
||||
|
||||
/* If this is a buffer we wrapped up earlier, unwrap it now */
|
||||
if (meta != NULL) {
|
||||
GstBuffer *wrap_buf = buf;
|
||||
|
||||
if (meta->owner == GST_ELEMENT (parset)) {
|
||||
buf = rsn_meta_wrapped_unwrap_and_unref (wrap_buf, meta);
|
||||
GST_DEBUG_OBJECT (parset, "Unwrapping %p yields buffer %p with caps %"
|
||||
GST_PTR_FORMAT, wrap_buf, buf, GST_BUFFER_CAPS (buf));
|
||||
}
|
||||
}
|
||||
|
||||
if (parset->outcaps != GST_BUFFER_CAPS (buf)) {
|
||||
if (parset->override_outcaps == FALSE &&
|
||||
gst_caps_is_equal (parset->outcaps, GST_BUFFER_CAPS (buf))) {
|
||||
/* Just update our output caps var */
|
||||
gst_caps_replace (&parset->outcaps, GST_BUFFER_CAPS (buf));
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Replace the caps on the output buffer */
|
||||
buf = gst_buffer_make_metadata_writable (buf);
|
||||
gst_buffer_set_caps (buf, parset->outcaps);
|
||||
|
||||
GST_DEBUG_OBJECT (parset,
|
||||
"Replacing caps on buffer %p with caps %" GST_PTR_FORMAT,
|
||||
buf, parset->outcaps);
|
||||
}
|
||||
|
||||
out:
|
||||
return gst_pad_push (parset->srcpad, buf);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
rsn_parsetter_sink_event (GstPad * pad, GstEvent * event)
|
||||
rsn_parsetter_sink_event (GstPad * pad, RsnParSetter * parset, GstEvent * event)
|
||||
{
|
||||
RsnParSetter *parset = RSN_PARSETTER (gst_pad_get_parent (pad));
|
||||
const GstStructure *structure = gst_event_get_structure (event);
|
||||
switch (GST_EVENT_TYPE (event)) {
|
||||
case GST_EVENT_CUSTOM_DOWNSTREAM:{
|
||||
const GstStructure *structure = gst_event_get_structure (event);
|
||||
|
||||
if (structure != NULL &&
|
||||
gst_structure_has_name (structure, "application/x-gst-dvd")) {
|
||||
const char *type = gst_structure_get_string (structure, "event");
|
||||
if (type == NULL)
|
||||
goto out;
|
||||
if (structure != NULL &&
|
||||
gst_structure_has_name (structure, "application/x-gst-dvd")) {
|
||||
const char *type = gst_structure_get_string (structure, "event");
|
||||
if (type == NULL)
|
||||
goto out;
|
||||
|
||||
if (strcmp (type, "dvd-video-format") == 0) {
|
||||
gboolean is_widescreen;
|
||||
if (strcmp (type, "dvd-video-format") == 0) {
|
||||
gboolean is_widescreen;
|
||||
|
||||
gst_structure_get_boolean (structure, "video-widescreen", &is_widescreen);
|
||||
gst_structure_get_boolean (structure, "video-widescreen",
|
||||
&is_widescreen);
|
||||
|
||||
GST_DEBUG_OBJECT (parset, "Video is %s",
|
||||
parset->is_widescreen ? "16:9" : "4:3");
|
||||
GST_DEBUG_OBJECT (parset, "Video is %s",
|
||||
parset->is_widescreen ? "16:9" : "4:3");
|
||||
|
||||
g_mutex_lock (parset->caps_lock);
|
||||
if (parset->is_widescreen != is_widescreen) {
|
||||
/* Force caps check */
|
||||
gst_caps_replace (&parset->in_caps_last, NULL);
|
||||
gst_caps_replace (&parset->in_caps_converted, NULL);
|
||||
g_mutex_lock (parset->caps_lock);
|
||||
if (parset->is_widescreen != is_widescreen) {
|
||||
/* Force caps check */
|
||||
gst_caps_replace (&parset->in_caps_last, NULL);
|
||||
gst_caps_replace (&parset->in_caps_converted, NULL);
|
||||
}
|
||||
parset->is_widescreen = is_widescreen;
|
||||
|
||||
/* FIXME: Added for testing: */
|
||||
// parset->is_widescreen = FALSE;
|
||||
|
||||
g_mutex_unlock (parset->caps_lock);
|
||||
}
|
||||
}
|
||||
parset->is_widescreen = is_widescreen;
|
||||
|
||||
/* FIXME: Added for testing: */
|
||||
// parset->is_widescreen = FALSE;
|
||||
|
||||
g_mutex_unlock (parset->caps_lock);
|
||||
break;
|
||||
}
|
||||
case GST_EVENT_CAPS:
|
||||
{
|
||||
GstCaps *caps = NULL;
|
||||
gst_event_parse_caps (event, &caps);
|
||||
rsn_parsetter_update_caps (parset, caps);
|
||||
if (parset->override_outcaps) {
|
||||
gst_event_unref (event);
|
||||
GST_DEBUG_OBJECT (parset,
|
||||
"Handling caps event. Overriding upstream caps"
|
||||
" with %" GST_PTR_FORMAT, parset->outcaps);
|
||||
event = gst_event_new_caps (parset->outcaps);
|
||||
} else {
|
||||
GST_DEBUG_OBJECT (parset,
|
||||
"Handling caps event. Upstream caps %" GST_PTR_FORMAT
|
||||
" acceptable", caps);
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
out:
|
||||
gst_object_unref (GST_OBJECT (parset));
|
||||
return gst_pad_event_default (pad, event);
|
||||
return gst_pad_event_default (pad, (GstObject *) (parset), event);
|
||||
}
|
||||
|
||||
static GstCaps *
|
||||
rsn_parsetter_src_getcaps (GstPad * pad)
|
||||
static gboolean
|
||||
rsn_parsetter_src_query (GstPad * pad, RsnParSetter * parset, GstQuery * query)
|
||||
{
|
||||
RsnParSetter *parset = RSN_PARSETTER (gst_pad_get_parent (pad));
|
||||
GstCaps *ret;
|
||||
const GstCaps *templ_caps = gst_pad_get_pad_template_caps (pad);
|
||||
GstCaps *caps = NULL;
|
||||
|
||||
ret = gst_pad_peer_get_caps (parset->sinkpad);
|
||||
if (ret == NULL)
|
||||
ret = gst_caps_copy (templ_caps);
|
||||
else {
|
||||
GstCaps *temp;
|
||||
temp = gst_caps_intersect (templ_caps, ret);
|
||||
gst_caps_unref (ret);
|
||||
ret = rsn_parsetter_convert_caps (parset, temp, parset->is_widescreen);
|
||||
gst_caps_unref (temp);
|
||||
if (!gst_pad_peer_query (parset->sinkpad, query))
|
||||
return FALSE;
|
||||
|
||||
if (GST_QUERY_TYPE (query) != GST_QUERY_CAPS)
|
||||
return TRUE;
|
||||
|
||||
gst_query_parse_caps_result (query, &caps);
|
||||
|
||||
GST_DEBUG_OBJECT (parset, "Handling caps query. Upstream caps %"
|
||||
GST_PTR_FORMAT, caps);
|
||||
|
||||
if (caps == NULL) {
|
||||
GstCaps *templ_caps = gst_pad_get_pad_template_caps (pad);
|
||||
gst_query_set_caps_result (query, templ_caps);
|
||||
gst_caps_unref (templ_caps);
|
||||
} else {
|
||||
caps = rsn_parsetter_convert_caps (parset, caps, parset->is_widescreen);
|
||||
gst_query_set_caps_result (query, caps);
|
||||
gst_caps_unref (caps);
|
||||
}
|
||||
|
||||
gst_object_unref (parset);
|
||||
return ret;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* Check if the DAR of the passed matches the required DAR */
|
||||
static gboolean
|
||||
rsn_parsetter_check_caps (RsnParSetter * parset, GstCaps * caps)
|
||||
{
|
||||
|
|
@ -231,8 +212,9 @@ rsn_parsetter_check_caps (RsnParSetter * parset, GstCaps * caps)
|
|||
|
||||
g_mutex_lock (parset->caps_lock);
|
||||
|
||||
if (caps == parset->in_caps_last ||
|
||||
gst_caps_is_equal (caps, parset->in_caps_last)) {
|
||||
if (parset->in_caps_last &&
|
||||
(caps == parset->in_caps_last ||
|
||||
gst_caps_is_equal (caps, parset->in_caps_last))) {
|
||||
ret = parset->in_caps_was_ok;
|
||||
goto out;
|
||||
}
|
||||
|
|
@ -327,13 +309,11 @@ out:
|
|||
return outcaps;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
rsn_parsetter_sink_setcaps (GstPad * pad, GstCaps * caps)
|
||||
static void
|
||||
rsn_parsetter_update_caps (RsnParSetter * parset, GstCaps * caps)
|
||||
{
|
||||
/* Check the new incoming caps against our current DAR, and mark
|
||||
* whether the buffers will need adjusting */
|
||||
RsnParSetter *parset = RSN_PARSETTER (gst_pad_get_parent (pad));
|
||||
|
||||
* whether the caps need adjusting */
|
||||
if (rsn_parsetter_check_caps (parset, caps)) {
|
||||
parset->override_outcaps = FALSE;
|
||||
gst_caps_replace (&parset->outcaps, caps);
|
||||
|
|
@ -349,54 +329,4 @@ rsn_parsetter_sink_setcaps (GstPad * pad, GstCaps * caps)
|
|||
|
||||
GST_DEBUG_OBJECT (parset, "caps changed: need_override now = %d",
|
||||
parset->override_outcaps);
|
||||
|
||||
gst_object_unref (parset);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
rsn_parsetter_sink_bufferalloc (GstPad * pad, guint64 offset, guint size,
|
||||
GstCaps * caps, GstBuffer ** buf)
|
||||
{
|
||||
RsnParSetter *parset = RSN_PARSETTER (gst_pad_get_parent (pad));
|
||||
GstFlowReturn ret;
|
||||
|
||||
GST_LOG_OBJECT (parset, "Entering bufferalloc");
|
||||
|
||||
if (rsn_parsetter_check_caps (parset, caps)) {
|
||||
ret = gst_pad_alloc_buffer (parset->srcpad, offset, size, caps, buf);
|
||||
GST_LOG_OBJECT (parset, "Not wrapping buf %p", *buf);
|
||||
} else {
|
||||
/* Allocate and wrap a downstream buffer */
|
||||
GstBuffer *orig_buf;
|
||||
GstBuffer *outbuf;
|
||||
GstCaps *override_caps = rsn_parsetter_convert_caps (parset, caps,
|
||||
parset->is_widescreen);
|
||||
|
||||
ret = gst_pad_alloc_buffer (parset->srcpad, offset, size,
|
||||
override_caps, &orig_buf);
|
||||
gst_caps_unref (override_caps);
|
||||
|
||||
if (ret != GST_FLOW_OK)
|
||||
return ret;
|
||||
|
||||
outbuf = rsn_wrapped_buffer_new (orig_buf, GST_ELEMENT_CAST (parset));
|
||||
if (!outbuf) {
|
||||
/* FIXME: Throw error */
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
|
||||
gst_buffer_set_caps (outbuf, caps);
|
||||
|
||||
GST_LOG_OBJECT (parset,
|
||||
"Wrapped ds buf %p with caps %" GST_PTR_FORMAT
|
||||
" into new buf %p with caps %" GST_PTR_FORMAT,
|
||||
orig_buf, GST_BUFFER_CAPS (orig_buf), outbuf, GST_BUFFER_CAPS (outbuf));
|
||||
|
||||
*buf = outbuf;
|
||||
}
|
||||
|
||||
gst_object_unref (GST_OBJECT (parset));
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -7,8 +7,6 @@
|
|||
|
||||
#include <gst/gst.h>
|
||||
|
||||
#include "rsnwrappedbuffer.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define RSN_TYPE_RSNPARSETTER \
|
||||
|
|
|
|||
|
|
@ -1,121 +0,0 @@
|
|||
/* 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"
|
||||
|
||||
GstBuffer *
|
||||
rsn_wrapped_buffer_new (GstBuffer * buf_to_wrap, GstElement * owner)
|
||||
{
|
||||
GstBuffer *buf;
|
||||
RsnMetaWrapped *meta;
|
||||
|
||||
g_return_val_if_fail (buf_to_wrap, NULL);
|
||||
|
||||
buf = gst_buffer_new ();
|
||||
meta = RSN_META_WRAPPED_ADD (buf);
|
||||
|
||||
meta->wrapped_buffer = buf_to_wrap;
|
||||
meta->owner = gst_object_ref (owner);
|
||||
|
||||
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_meta_wrapped_set_owner (RsnMetaWrapped * meta, GstElement * owner)
|
||||
{
|
||||
g_return_if_fail (meta != NULL);
|
||||
|
||||
if (meta->owner)
|
||||
gst_object_unref (meta->owner);
|
||||
|
||||
if (owner)
|
||||
gst_object_ref (owner);
|
||||
|
||||
meta->owner = owner;
|
||||
}
|
||||
|
||||
GstBuffer *
|
||||
rsn_meta_wrapped_unwrap_and_unref (GstBuffer * wrap_buf, RsnMetaWrapped * meta)
|
||||
{
|
||||
GstBuffer *buf;
|
||||
gboolean is_readonly;
|
||||
|
||||
g_return_val_if_fail (wrap_buf != NULL, NULL);
|
||||
g_return_val_if_fail (meta->wrapped_buffer != NULL, NULL);
|
||||
|
||||
buf = gst_buffer_ref (meta->wrapped_buffer);
|
||||
buf = gst_buffer_make_metadata_writable (buf);
|
||||
|
||||
/* 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 (wrap_buf);
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
static void
|
||||
rsn_meta_wrapped_init (RsnMetaWrapped * meta, GstBuffer * buffer)
|
||||
{
|
||||
meta->owner = NULL;
|
||||
}
|
||||
|
||||
static void
|
||||
rsn_meta_wrapped_free (RsnMetaWrapped * meta, GstBuffer * buffer)
|
||||
{
|
||||
gst_buffer_unref (meta->wrapped_buffer);
|
||||
if (meta->owner)
|
||||
gst_object_unref (meta->owner);
|
||||
}
|
||||
|
||||
const GstMetaInfo *
|
||||
rsn_meta_wrapped_get_info (void)
|
||||
{
|
||||
static const GstMetaInfo *meta_info = NULL;
|
||||
|
||||
if (meta_info == NULL) {
|
||||
meta_info = gst_meta_register ("RsnMetaWrapped", "RsnMetaWrapped",
|
||||
sizeof (RsnMetaWrapped),
|
||||
(GstMetaInitFunction) rsn_meta_wrapped_init,
|
||||
(GstMetaFreeFunction) rsn_meta_wrapped_free,
|
||||
(GstMetaTransformFunction) NULL,
|
||||
(GstMetaSerializeFunction) NULL, (GstMetaDeserializeFunction) NULL);
|
||||
}
|
||||
return meta_info;
|
||||
}
|
||||
|
|
@ -1,49 +0,0 @@
|
|||
/* 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.
|
||||
*/
|
||||
|
||||
#ifndef __RSN_WRAPPERBUFFER_H__
|
||||
#define __RSN_WRAPPERBUFFER_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
typedef struct _RsnMetaWrapped RsnMetaWrapped;
|
||||
|
||||
struct _RsnMetaWrapped {
|
||||
GstMeta meta;
|
||||
GstBuffer *wrapped_buffer;
|
||||
|
||||
GstElement *owner;
|
||||
};
|
||||
|
||||
GstBuffer *rsn_wrapped_buffer_new (GstBuffer *buf_to_wrap, GstElement *owner);
|
||||
|
||||
GstBuffer *rsn_meta_wrapped_unwrap_and_unref (GstBuffer *wrap_buf, RsnMetaWrapped *meta);
|
||||
|
||||
void rsn_meta_wrapped_set_owner (RsnMetaWrapped *meta, GstElement *owner);
|
||||
|
||||
const GstMetaInfo * rsn_meta_wrapped_get_info (void);
|
||||
|
||||
#define RSN_META_WRAPPED_GET(buf) ((RsnMetaWrapped *)gst_buffer_get_meta(buf,rsn_meta_wrapped_get_info()))
|
||||
#define RSN_META_WRAPPED_ADD(buf) ((RsnMetaWrapped *)gst_buffer_add_meta(buf,rsn_meta_wrapped_get_info(),NULL))
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue