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335293bf50
This is needed to satisfy the new -Wunused-but-set-variable added in GCC 4.6: http://gcc.gnu.org/gcc-4.6/changes.html
312 lines
8.5 KiB
C
312 lines
8.5 KiB
C
/* GStreamer
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* Copyright (C) 2010 David Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-gstsdimux
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*
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* The gstsdimux element does FIXME stuff.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch -v fakesrc ! gstsdimux ! FIXME ! fakesink
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* ]|
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* FIXME Describe what the pipeline does.
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/gst.h>
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#include "gstsdimux.h"
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/* prototypes */
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static void gst_sdi_mux_set_property (GObject * object,
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guint property_id, const GValue * value, GParamSpec * pspec);
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static void gst_sdi_mux_get_property (GObject * object,
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guint property_id, GValue * value, GParamSpec * pspec);
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static void gst_sdi_mux_dispose (GObject * object);
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static void gst_sdi_mux_finalize (GObject * object);
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static GstPad *gst_sdi_mux_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name);
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static void gst_sdi_mux_release_pad (GstElement * element, GstPad * pad);
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static GstStateChangeReturn
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gst_sdi_mux_change_state (GstElement * element, GstStateChange transition);
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static const GstQueryType *gst_sdi_mux_get_query_types (GstElement * element);
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static gboolean gst_sdi_mux_query (GstElement * element, GstQuery * query);
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static GstFlowReturn gst_sdi_mux_chain (GstPad * pad, GstBuffer * buffer);
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static gboolean gst_sdi_mux_sink_event (GstPad * pad, GstEvent * event);
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static gboolean gst_sdi_mux_src_event (GstPad * pad, GstEvent * event);
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enum
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{
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PROP_0
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};
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/* pad templates */
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#define GST_VIDEO_CAPS_NTSC(fourcc) \
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"video/x-raw-yuv,format=(fourcc)" fourcc ",width=720,height=480," \
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"framerate=30000/1001,interlaced=TRUE,pixel-aspect-ratio=10/11," \
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"chroma-site=mpeg2,color-matrix=sdtv"
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#define GST_VIDEO_CAPS_NTSC_WIDE(fourcc) \
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"video/x-raw-yuv,format=(fourcc)" fourcc ",width=720,height=480," \
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"framerate=30000/1001,interlaced=TRUE,pixel-aspect-ratio=40/33," \
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"chroma-site=mpeg2,color-matrix=sdtv"
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#define GST_VIDEO_CAPS_PAL(fourcc) \
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"video/x-raw-yuv,format=(fourcc)" fourcc ",width=720,height=576," \
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"framerate=25/1,interlaced=TRUE,pixel-aspect-ratio=12/11," \
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"chroma-site=mpeg2,color-matrix=sdtv"
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#define GST_VIDEO_CAPS_PAL_WIDE(fourcc) \
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"video/x-raw-yuv,format=(fourcc)" fourcc ",width=720,height=576," \
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"framerate=25/1,interlaced=TRUE,pixel-aspect-ratio=16/11," \
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"chroma-site=mpeg2,color-matrix=sdtv"
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static GstStaticPadTemplate gst_sdi_mux_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_NTSC ("{UYVY,v210}") ";"
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GST_VIDEO_CAPS_PAL ("{UYVY,v210}"))
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);
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static GstStaticPadTemplate gst_sdi_mux_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS
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("application/x-raw-sdi,rate=270,format=(fourcc){UYVY,v210}")
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);
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/* class initialization */
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GST_BOILERPLATE (GstSdiMux, gst_sdi_mux, GstElement, GST_TYPE_ELEMENT);
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static void
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gst_sdi_mux_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_sdi_mux_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_sdi_mux_sink_template));
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gst_element_class_set_details_simple (element_class, "SDI Muxer",
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"Muxer",
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"Multiplex raw audio and video into SDI",
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"David Schleef <ds@schleef.org>");
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}
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static void
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gst_sdi_mux_class_init (GstSdiMuxClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gobject_class->set_property = gst_sdi_mux_set_property;
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gobject_class->get_property = gst_sdi_mux_get_property;
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gobject_class->dispose = gst_sdi_mux_dispose;
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gobject_class->finalize = gst_sdi_mux_finalize;
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element_class->request_new_pad =
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GST_DEBUG_FUNCPTR (gst_sdi_mux_request_new_pad);
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element_class->release_pad = GST_DEBUG_FUNCPTR (gst_sdi_mux_release_pad);
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element_class->change_state = GST_DEBUG_FUNCPTR (gst_sdi_mux_change_state);
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element_class->get_query_types =
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GST_DEBUG_FUNCPTR (gst_sdi_mux_get_query_types);
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element_class->query = GST_DEBUG_FUNCPTR (gst_sdi_mux_query);
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}
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static void
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gst_sdi_mux_init (GstSdiMux * sdimux, GstSdiMuxClass * sdimux_class)
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{
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sdimux->sinkpad =
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gst_pad_new_from_static_template (&gst_sdi_mux_sink_template, "sink");
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gst_pad_set_event_function (sdimux->sinkpad,
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GST_DEBUG_FUNCPTR (gst_sdi_mux_sink_event));
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gst_pad_set_chain_function (sdimux->sinkpad,
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GST_DEBUG_FUNCPTR (gst_sdi_mux_chain));
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gst_element_add_pad (GST_ELEMENT (sdimux), sdimux->sinkpad);
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sdimux->srcpad = gst_pad_new_from_static_template (&gst_sdi_mux_src_template,
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"src");
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gst_pad_set_event_function (sdimux->srcpad,
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GST_DEBUG_FUNCPTR (gst_sdi_mux_src_event));
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gst_element_add_pad (GST_ELEMENT (sdimux), sdimux->srcpad);
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}
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void
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gst_sdi_mux_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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g_return_if_fail (GST_IS_SDI_MUX (object));
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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void
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gst_sdi_mux_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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g_return_if_fail (GST_IS_SDI_MUX (object));
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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void
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gst_sdi_mux_dispose (GObject * object)
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{
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g_return_if_fail (GST_IS_SDI_MUX (object));
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/* clean up as possible. may be called multiple times */
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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void
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gst_sdi_mux_finalize (GObject * object)
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{
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g_return_if_fail (GST_IS_SDI_MUX (object));
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/* clean up object here */
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static GstPad *
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gst_sdi_mux_request_new_pad (GstElement * element, GstPadTemplate * templ,
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const gchar * name)
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{
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return NULL;
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}
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static void
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gst_sdi_mux_release_pad (GstElement * element, GstPad * pad)
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{
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}
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static GstStateChangeReturn
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gst_sdi_mux_change_state (GstElement * element, GstStateChange transition)
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{
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return GST_STATE_CHANGE_SUCCESS;
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}
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static const GstQueryType *
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gst_sdi_mux_get_query_types (GstElement * element)
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{
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return NULL;
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}
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static gboolean
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gst_sdi_mux_query (GstElement * element, GstQuery * query)
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{
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return FALSE;
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}
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static GstFlowReturn
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gst_sdi_mux_chain (GstPad * pad, GstBuffer * buffer)
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{
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GstSdiMux *sdimux;
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sdimux = GST_SDI_MUX (gst_pad_get_parent (pad));
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GST_DEBUG_OBJECT (sdimux, "chain");
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gst_object_unref (sdimux);
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return GST_FLOW_OK;
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}
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static gboolean
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gst_sdi_mux_sink_event (GstPad * pad, GstEvent * event)
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{
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gboolean res;
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GstSdiMux *sdimux;
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sdimux = GST_SDI_MUX (gst_pad_get_parent (pad));
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GST_DEBUG_OBJECT (sdimux, "event");
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_FLUSH_START:
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res = gst_pad_push_event (sdimux->srcpad, event);
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break;
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case GST_EVENT_FLUSH_STOP:
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res = gst_pad_push_event (sdimux->srcpad, event);
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break;
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case GST_EVENT_NEWSEGMENT:
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res = gst_pad_push_event (sdimux->srcpad, event);
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break;
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case GST_EVENT_EOS:
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res = gst_pad_push_event (sdimux->srcpad, event);
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break;
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default:
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res = gst_pad_push_event (sdimux->srcpad, event);
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break;
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}
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gst_object_unref (sdimux);
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return TRUE;
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}
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static gboolean
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gst_sdi_mux_src_event (GstPad * pad, GstEvent * event)
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{
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gboolean res;
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GstSdiMux *sdimux;
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sdimux = GST_SDI_MUX (gst_pad_get_parent (pad));
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GST_DEBUG_OBJECT (sdimux, "event");
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_SEEK:
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res = gst_pad_push_event (sdimux->sinkpad, event);
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break;
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default:
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res = gst_pad_push_event (sdimux->sinkpad, event);
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break;
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}
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gst_object_unref (sdimux);
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return TRUE;
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}
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