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Conflicts: common configure.ac gst/colorspace/colorspace.c gst/colorspace/colorspace.h gst/colorspace/gstcolorspace.c
537 lines
15 KiB
C
537 lines
15 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-gstsdidemux
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*
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* The gstsdidemux 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 ! gstsdidemux ! 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 <string.h>
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#include "gstsdidemux.h"
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/* prototypes */
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static void gst_sdi_demux_set_property (GObject * object,
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guint property_id, const GValue * value, GParamSpec * pspec);
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static void gst_sdi_demux_get_property (GObject * object,
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guint property_id, GValue * value, GParamSpec * pspec);
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static void gst_sdi_demux_dispose (GObject * object);
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static void gst_sdi_demux_finalize (GObject * object);
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static GstStateChangeReturn
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gst_sdi_demux_change_state (GstElement * element, GstStateChange transition);
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static GstFlowReturn gst_sdi_demux_chain (GstPad * pad, GstBuffer * buffer);
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static gboolean gst_sdi_demux_sink_event (GstPad * pad, GstEvent * event);
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static gboolean gst_sdi_demux_src_event (GstPad * pad, GstEvent * event);
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static GstCaps *gst_sdi_demux_src_getcaps (GstPad * pad);
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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_demux_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 ("application/x-raw-sdi")
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);
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static GstStaticPadTemplate gst_sdi_demux_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 (GST_VIDEO_CAPS_NTSC ("UYVY") ";"
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GST_VIDEO_CAPS_PAL ("UYVY"))
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);
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/* class initialization */
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GST_BOILERPLATE (GstSdiDemux, gst_sdi_demux, GstElement, GST_TYPE_ELEMENT);
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static void
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gst_sdi_demux_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_demux_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_demux_sink_template));
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gst_element_class_set_details_simple (element_class,
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"SDI Demuxer",
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"Demuxer",
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"Demultiplex SDI streams into raw audio and video",
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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_demux_class_init (GstSdiDemuxClass * 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_demux_set_property;
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gobject_class->get_property = gst_sdi_demux_get_property;
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gobject_class->dispose = gst_sdi_demux_dispose;
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gobject_class->finalize = gst_sdi_demux_finalize;
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if (0)
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element_class->change_state =
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GST_DEBUG_FUNCPTR (gst_sdi_demux_change_state);
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}
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static void
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gst_sdi_demux_init (GstSdiDemux * sdidemux, GstSdiDemuxClass * sdidemux_class)
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{
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sdidemux->sinkpad =
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gst_pad_new_from_static_template (&gst_sdi_demux_sink_template, "sink");
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gst_pad_set_event_function (sdidemux->sinkpad,
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GST_DEBUG_FUNCPTR (gst_sdi_demux_sink_event));
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gst_pad_set_chain_function (sdidemux->sinkpad,
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GST_DEBUG_FUNCPTR (gst_sdi_demux_chain));
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gst_element_add_pad (GST_ELEMENT (sdidemux), sdidemux->sinkpad);
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sdidemux->srcpad =
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gst_pad_new_from_static_template (&gst_sdi_demux_src_template, "src");
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gst_pad_set_event_function (sdidemux->srcpad,
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GST_DEBUG_FUNCPTR (gst_sdi_demux_src_event));
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gst_pad_set_getcaps_function (sdidemux->srcpad,
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GST_DEBUG_FUNCPTR (gst_sdi_demux_src_getcaps));
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gst_element_add_pad (GST_ELEMENT (sdidemux), sdidemux->srcpad);
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}
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void
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gst_sdi_demux_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_DEMUX (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_demux_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_DEMUX (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_demux_dispose (GObject * object)
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{
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g_return_if_fail (GST_IS_SDI_DEMUX (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_demux_finalize (GObject * object)
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{
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g_return_if_fail (GST_IS_SDI_DEMUX (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 GstStateChangeReturn
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gst_sdi_demux_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 GstCaps *
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gst_sdi_demux_src_getcaps (GstPad * pad)
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{
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return gst_caps_from_string (GST_VIDEO_CAPS_NTSC ("UYVY"));
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}
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static void
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gst_sdi_demux_get_output_buffer (GstSdiDemux * sdidemux)
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{
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sdidemux->output_buffer =
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gst_buffer_new_and_alloc (720 * sdidemux->format->active_lines * 2);
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gst_buffer_set_caps (sdidemux->output_buffer,
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gst_caps_from_string (GST_VIDEO_CAPS_PAL ("UYVY")));
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GST_BUFFER_TIMESTAMP (sdidemux->output_buffer) =
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GST_SECOND * sdidemux->frame_number;
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sdidemux->frame_number++;
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}
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static guint32
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get_word10 (guint8 * ptr)
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{
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guint32 a;
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a = (((ptr[0] >> 2) | (ptr[1] << 6)) & 0xff) << 24;
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a |= (((ptr[1] >> 4) | (ptr[2] << 4)) & 0xff) << 16;
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a |= (((ptr[2] >> 6) | (ptr[3] << 2)) & 0xff) << 8;
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a |= ptr[4];
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return a;
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}
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static void
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line10_copy (guint8 * dest, guint8 * src, int n)
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{
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int i;
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guint32 a;
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for (i = 0; i < n; i++) {
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a = get_word10 (src);
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GST_WRITE_UINT32_BE (dest, a);
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src += 5;
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dest += 4;
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}
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}
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static GstFlowReturn
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copy_line (GstSdiDemux * sdidemux, guint8 * line)
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{
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guint8 *output_data;
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GstFlowReturn ret = GST_FLOW_OK;
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GstSdiFormat *format = sdidemux->format;
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output_data = GST_BUFFER_DATA (sdidemux->output_buffer);
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/* line is one less than the video line */
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if (sdidemux->line >= format->start0 - 1 &&
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sdidemux->line < format->start0 - 1 + format->active_lines / 2) {
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#if 0
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memcpy (output_data + 720 * 2 * ((sdidemux->line -
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(format->start0 - 1)) * 2 + (!format->tff)),
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line + (format->width - 720) * 2, 720 * 2);
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#else
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line10_copy (output_data + 720 * 2 * ((sdidemux->line -
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(format->start0 - 1)) * 2 + (!format->tff)),
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line + (format->width - 720) / 2 * 5, 720 / 2);
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#endif
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}
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if (sdidemux->line >= format->start1 - 1 &&
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sdidemux->line < format->start1 - 1 + format->active_lines / 2) {
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#if 0
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memcpy (output_data + 720 * 2 * ((sdidemux->line -
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(format->start1 - 1)) * 2 + (format->tff)),
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line + (format->width - 720) * 2, 720 * 2);
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#else
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line10_copy (output_data + 720 * 2 * ((sdidemux->line -
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(format->start1 - 1)) * 2 + (format->tff)),
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line + (format->width - 720) / 2 * 5, 720 / 2);
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#endif
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}
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sdidemux->offset = 0;
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sdidemux->line++;
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if (sdidemux->line == format->lines) {
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ret = gst_pad_push (sdidemux->srcpad, sdidemux->output_buffer);
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gst_sdi_demux_get_output_buffer (sdidemux);
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sdidemux->line = 0;
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}
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return ret;
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}
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#define SDI_IS_SYNC(a) (((a)&0xffffff80) == 0xff000080)
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#define SDI_SYNC_F(a) (((a)>>6)&1)
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#define SDI_SYNC_V(a) (((a)>>5)&1)
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#define SDI_SYNC_H(a) (((a)>>4)&1)
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GstSdiFormat sd_ntsc = { 525, 480, 858, 20, 283, 0 };
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GstSdiFormat sd_pal = { 625, 576, 864, 23, 336, 1 };
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static GstFlowReturn
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gst_sdi_demux_chain (GstPad * pad, GstBuffer * buffer)
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{
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GstSdiDemux *sdidemux;
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int offset = 0;
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guint8 *data = GST_BUFFER_DATA (buffer);
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int size = GST_BUFFER_SIZE (buffer);
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GstFlowReturn ret = GST_FLOW_OK;
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GstSdiFormat *format;
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sdidemux = GST_SDI_DEMUX (gst_pad_get_parent (pad));
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sdidemux->format = &sd_pal;
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format = sdidemux->format;
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GST_DEBUG_OBJECT (sdidemux, "chain");
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if (GST_BUFFER_IS_DISCONT (buffer)) {
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sdidemux->have_hsync = FALSE;
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sdidemux->have_vsync = FALSE;
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}
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if (!sdidemux->have_hsync) {
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#if 0
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for (offset = 0; offset < size; offset += 4) {
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guint32 sync = READ_UINT32_BE (data + offset);
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GST_ERROR ("sync value %08x", sync);
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if (SDI_IS_SYNC (sync) && SDI_SYNC_H (sync)) {
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sdidemux->have_hsync = TRUE;
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sdidemux->line = 0;
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sdidemux->offset = 0;
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break;
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}
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}
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#else
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for (offset = 0; offset < size; offset += 5) {
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guint32 sync = get_word10 (data + offset);
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//GST_ERROR("sync value %08x", sync);
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if (SDI_IS_SYNC (sync) && SDI_SYNC_H (sync)) {
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sdidemux->have_hsync = TRUE;
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sdidemux->line = 0;
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sdidemux->offset = 0;
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break;
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}
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}
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#endif
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if (!sdidemux->have_hsync) {
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GST_ERROR ("no sync");
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goto out;
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}
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}
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if (sdidemux->output_buffer == NULL) {
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gst_sdi_demux_get_output_buffer (sdidemux);
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}
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#if 0
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if (sdidemux->offset) {
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int n;
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/* second half of a line */
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n = MIN (size - offset, format->width * 2 - sdidemux->offset);
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memcpy (sdidemux->stored_line + sdidemux->offset, data + offset, n);
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offset += n;
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sdidemux->offset += n;
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if (sdidemux->offset == format->width * 2) {
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guint32 sync =
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GST_READ_UINT32_BE (data + offset + (format->width - 720 - 2) * 2);
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//GST_ERROR("%08x", sync);
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if (!sdidemux->have_vsync) {
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//GST_ERROR("%08x", GST_READ_UINT32_BE(data+offset));
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if (SDI_IS_SYNC (sync) && !SDI_SYNC_F (sync) &&
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SDI_SYNC_F (sdidemux->last_sync)) {
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sdidemux->have_vsync = TRUE;
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}
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sdidemux->line = 0;
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}
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ret = copy_line (sdidemux, sdidemux->stored_line);
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sdidemux->last_sync = sync;
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}
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}
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while (size - offset >= format->width * 2) {
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guint32 sync =
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GST_READ_UINT32_BE (data + offset + (format->width - 720 - 2) * 2);
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//GST_ERROR("%08x", sync);
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if (!sdidemux->have_vsync) {
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if (SDI_IS_SYNC (sync) && !SDI_SYNC_F (sync) &&
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SDI_SYNC_F (sdidemux->last_sync)) {
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sdidemux->have_vsync = TRUE;
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}
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sdidemux->line = 0;
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}
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ret = copy_line (sdidemux, data + offset);
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offset += format->width * 2;
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sdidemux->last_sync = sync;
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}
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if (size - offset > 0) {
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memcpy (sdidemux->stored_line, data + offset, size - offset);
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sdidemux->offset = size - offset;
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}
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#else
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if (sdidemux->offset) {
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int n;
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/* second half of a line */
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n = MIN (size - offset, format->width / 2 * 5 - sdidemux->offset);
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memcpy (sdidemux->stored_line + sdidemux->offset, data + offset, n);
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offset += n;
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sdidemux->offset += n;
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if (sdidemux->offset == (format->width / 2) * 5) {
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guint32 sync =
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get_word10 (data + offset + ((format->width - 720 - 2) / 2) * 5);
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if (!sdidemux->have_vsync) {
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//GST_ERROR("%08x", GST_READ_UINT32_BE(data+offset));
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if (SDI_IS_SYNC (sync) && !SDI_SYNC_F (sync) &&
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SDI_SYNC_F (sdidemux->last_sync)) {
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sdidemux->have_vsync = TRUE;
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}
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sdidemux->line = 0;
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}
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ret = copy_line (sdidemux, sdidemux->stored_line);
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sdidemux->last_sync = sync;
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}
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}
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while (size - offset >= format->width / 2 * 5) {
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guint32 sync =
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get_word10 (data + offset + ((format->width - 720 - 2) / 2) * 5);
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//GST_ERROR("%08x", sync);
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if (!sdidemux->have_vsync) {
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if (SDI_IS_SYNC (sync) && !SDI_SYNC_F (sync) &&
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SDI_SYNC_F (sdidemux->last_sync)) {
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sdidemux->have_vsync = TRUE;
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}
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sdidemux->line = 0;
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}
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|
|
ret = copy_line (sdidemux, data + offset);
|
|
offset += (format->width / 2) * 5;
|
|
|
|
sdidemux->last_sync = sync;
|
|
}
|
|
|
|
if (size - offset > 0) {
|
|
memcpy (sdidemux->stored_line, data + offset, size - offset);
|
|
sdidemux->offset = size - offset;
|
|
}
|
|
#endif
|
|
|
|
out:
|
|
gst_buffer_unref (buffer);
|
|
gst_object_unref (sdidemux);
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_sdi_demux_sink_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
gboolean res = TRUE;
|
|
GstSdiDemux *sdidemux;
|
|
|
|
sdidemux = GST_SDI_DEMUX (gst_pad_get_parent (pad));
|
|
|
|
GST_DEBUG_OBJECT (sdidemux, "event");
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_FLUSH_START:
|
|
res = gst_pad_push_event (sdidemux->srcpad, event);
|
|
break;
|
|
case GST_EVENT_FLUSH_STOP:
|
|
res = gst_pad_push_event (sdidemux->srcpad, event);
|
|
break;
|
|
case GST_EVENT_NEWSEGMENT:
|
|
res = gst_pad_push_event (sdidemux->srcpad, event);
|
|
break;
|
|
case GST_EVENT_EOS:
|
|
res = gst_pad_push_event (sdidemux->srcpad, event);
|
|
break;
|
|
default:
|
|
res = gst_pad_push_event (sdidemux->srcpad, event);
|
|
break;
|
|
}
|
|
|
|
gst_object_unref (sdidemux);
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_sdi_demux_src_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
gboolean res;
|
|
GstSdiDemux *sdidemux;
|
|
|
|
sdidemux = GST_SDI_DEMUX (gst_pad_get_parent (pad));
|
|
|
|
GST_DEBUG_OBJECT (sdidemux, "event");
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_SEEK:
|
|
res = gst_pad_push_event (sdidemux->sinkpad, event);
|
|
break;
|
|
default:
|
|
res = gst_pad_push_event (sdidemux->sinkpad, event);
|
|
break;
|
|
}
|
|
|
|
gst_object_unref (sdidemux);
|
|
return res;
|
|
}
|