videolevels: add support for signed 16-bit input video
This commit is contained in:
Joshua M. Doe
parent
cfa14e8d60
commit
38bf83dbe9
@ -3,6 +3,7 @@
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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* Copyright (C) 2003 Arwed v. Merkatz <v.merkatz@gmx.net>
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* Copyright (C) 2006 Mark Nauwelaerts <manauw@skynet.be>
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* Copyright (C) 2010 United States Government, Joshua M. Doe <oss@nvl.army.mil>
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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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@ -20,23 +21,16 @@
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* This file was (probably) generated from
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* gstvideotemplate.c,v 1.12 2004/01/07 21:07:12 ds Exp
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* and
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* make_filter,v 1.6 2004/01/07 21:33:01 ds Exp
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*/
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/**
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* SECTION:element-gamma
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* SECTION:element-videolevels
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*
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* Performs gamma correction on a video stream.
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* Convert grayscale video from one bpp/depth combination to another.
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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 videotestsrc ! gamma gamma=2.0 ! ffmpegcolorspace ! ximagesink
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* ]| This pipeline will make the image "brighter".
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* gst-launch videotestsrc ! videolevels ! ffmpegcolorspace ! autovideosink
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* ]|
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* </refsect2>
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*/
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@ -45,18 +39,12 @@
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#endif
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#include "gstvideolevels.h"
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#ifdef HAVE_LIBOIL
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#include <liboil/liboil.h>
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#endif
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#include <string.h>
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#include <math.h>
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#include <gst/video/video.h>
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GST_DEBUG_CATEGORY_STATIC (videolevels_debug);
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#define GST_CAT_DEFAULT videolevels_debug
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/* GstVideoLevels signals and args */
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enum
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{
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@ -74,26 +62,36 @@ enum
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/* FILL ME */
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};
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#define DEFAULT_PROP_LOWIN 0
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#define DEFAULT_PROP_HIGHIN 65535
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#define DEFAULT_PROP_LOWOUT 0
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#define DEFAULT_PROP_HIGHOUT 255
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#define DEFAULT_PROP_LOWIN 0.0
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#define DEFAULT_PROP_HIGHIN 1.0
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#define DEFAULT_PROP_LOWOUT 0.0
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#define DEFAULT_PROP_HIGHOUT 1.0
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static const GstElementDetails videolevels_details =
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GST_ELEMENT_DETAILS ("Video videolevels adjustment",
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"Filter/Effect/Video",
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"Adjusts videolevels on a video stream",
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"Josh Doe <oss@nvl.army.mil");
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"Joshua Doe <oss@nvl.army.mil");
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/* the capabilities of the inputs and outputs */
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static GstStaticPadTemplate gst_videolevels_src_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 (
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"video/x-raw-gray, " \
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"bpp = (int) [10,16], " \
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"bpp = (int) 16, " \
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"depth = (int) 16, " \
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"endianness = (int) BYTE_ORDER, " \
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"endianness = (int) {LITTLE_ENDIAN, BIG_ENDIAN}, " \
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"width = " GST_VIDEO_SIZE_RANGE ", " \
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"height = " GST_VIDEO_SIZE_RANGE ", " \
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"framerate = " GST_VIDEO_FPS_RANGE \
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";" \
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"video/x-raw-gray, " \
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"bpp = (int) 16, " \
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"depth = (int) 16, " \
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"endianness = (int) {LITTLE_ENDIAN, BIG_ENDIAN}, " \
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"signed = (bool) {true, false}, " \
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"width = " GST_VIDEO_SIZE_RANGE ", " \
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"height = " GST_VIDEO_SIZE_RANGE ", " \
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"framerate = " GST_VIDEO_FPS_RANGE
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@ -108,54 +106,62 @@ GST_STATIC_PAD_TEMPLATE ("src",
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"video/x-raw-gray, " \
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"bpp = (int) 8, " \
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"depth = (int) 8, " \
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"endianness = (int) BYTE_ORDER, " \
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"width = " GST_VIDEO_SIZE_RANGE ", " \
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"height = " GST_VIDEO_SIZE_RANGE ", " \
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"framerate = " GST_VIDEO_FPS_RANGE
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)
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);
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//static GstStaticPadTemplate gst_videolevels_sink_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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// "video/x-raw-gray, " \
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// "bpp = (int) 8, " \
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// "depth = (int) 8, " \
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// "endianness = (int) BYTE_ORDER, " \
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// "width = " GST_VIDEO_SIZE_RANGE ", " \
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// "height = " GST_VIDEO_SIZE_RANGE ", " \
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// "framerate = " GST_VIDEO_FPS_RANGE
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// )
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//);
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/* GObject vmethod declarations */
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static void gst_videolevels_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_videolevels_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_videolevels_finalize (GObject *object);
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static gboolean gst_videolevels_set_caps (GstBaseTransform * base, GstCaps * incaps,
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GstCaps * outcaps);
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static GstFlowReturn gst_videolevels_transform (GstBaseTransform * base, GstBuffer * inbuf,
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GstBuffer * outbuf);
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/* GstBaseTransform vmethod declarations */
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static GstCaps * gst_videolevels_transform_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps);
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static gboolean gst_videolevels_set_caps (GstBaseTransform * base,
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GstCaps * incaps, GstCaps * outcaps);
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static GstFlowReturn gst_videolevels_transform (GstBaseTransform * base,
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GstBuffer * inbuf, GstBuffer * outbuf);
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static GstFlowReturn gst_videolevels_transform_ip (GstBaseTransform * base,
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GstBuffer * buf);
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static gboolean gst_videolevels_get_unit_size (GstBaseTransform * base,
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GstCaps * caps, guint * size);
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static void reset(GstVideoLevels* filter);
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static void calculate_tables (GstVideoLevels * videolevels);
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static void do_levels (GstVideoLevels * videolevels, guint16 * indata, guint8* outdata, gint size);
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/* GstVideoLevels method declarations */
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static void gst_videolevels_reset(GstVideoLevels* filter);
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static void gst_videolevels_calculate_tables (GstVideoLevels * videolevels);
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static gboolean gst_videolevels_do_levels (GstVideoLevels * videolevels,
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gpointer indata, gpointer outdata);
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GST_BOILERPLATE (GstVideoLevels, gst_videolevels, GstVideoFilter, GST_TYPE_VIDEO_FILTER);
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/* setup debug */
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GST_DEBUG_CATEGORY_STATIC (videolevels_debug);
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#define GST_CAT_DEFAULT videolevels_debug
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#define DEBUG_INIT(bla) \
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GST_DEBUG_CATEGORY_INIT (videolevels_debug, "videolevels", 0, \
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"Video Levels Filter");
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GST_BOILERPLATE_FULL (GstVideoLevels, gst_videolevels, GstVideoFilter,
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GST_TYPE_VIDEO_FILTER, DEBUG_INIT);
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/************************************************************************/
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/* GObject vmethod implementations */
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/************************************************************************/
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/**
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* gst_videolevels_base_init:
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* @klass: #GstElementClass.
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*
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*/
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static void
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gst_videolevels_base_init (gpointer g_class)
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gst_videolevels_base_init (gpointer klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GST_CAT_INFO(GST_CAT_DEFAULT, "gst_videolevels_base_init");
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GST_DEBUG ("base init");
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gst_element_class_set_details (element_class, &videolevels_details);
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@ -165,102 +171,117 @@ gst_videolevels_base_init (gpointer g_class)
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gst_static_pad_template_get (&gst_videolevels_src_template));
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}
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/**
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* gst_videolevels_finalize:
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* @object: #GObject.
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*
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*/
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static void
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gst_videolevels_finalize (GObject *object)
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{
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GstVideoLevels *videolevels;
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GstVideoLevels *videolevels = GST_VIDEOLEVELS (object);
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GST_CAT_INFO (GST_CAT_DEFAULT, "gst_videolevels_finalize");
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GST_DEBUG ("finalize");
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g_return_if_fail (GST_IS_VIDEOLEVELS (object));
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videolevels = GST_VIDEOLEVELS (object);
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g_free(videolevels->levels_table);
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gst_videolevels_reset (videolevels);
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if(G_OBJECT_CLASS(parent_class)->finalize) {
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/* chain up to the parent class */
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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}
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/**
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* gst_videolevels_class_init:
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* @object: #GstVideoLevelsClass.
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*
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*/
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static void
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gst_videolevels_class_init (GstVideoLevelsClass * g_class)
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gst_videolevels_class_init (GstVideoLevelsClass * object)
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{
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GObjectClass *gobject_class;
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GstBaseTransformClass *trans_class;
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GObjectClass *obj_class = G_OBJECT_CLASS (object);
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GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (object);
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GST_DEBUG_CATEGORY_INIT (videolevels_debug, "videolevels", 0,
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"Video Levels Filter");
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GST_DEBUG ("class init");
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GST_CAT_INFO (GST_CAT_DEFAULT, "gst_videolevels_class_init");
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gobject_class = G_OBJECT_CLASS (g_class);
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trans_class = GST_BASE_TRANSFORM_CLASS (g_class);
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/* Register GObject vmethods */
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obj_class->finalize = GST_DEBUG_FUNCPTR (gst_videolevels_finalize);
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obj_class->set_property = GST_DEBUG_FUNCPTR (gst_videolevels_set_property);
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obj_class->get_property = GST_DEBUG_FUNCPTR (gst_videolevels_get_property);
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// Register GObject virtual functions
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gobject_class->finalize = GST_DEBUG_FUNCPTR(gst_videolevels_finalize);
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gobject_class->set_property = GST_DEBUG_FUNCPTR(gst_videolevels_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR(gst_videolevels_get_property);
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/* Install GObject properties */
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g_object_class_install_property (obj_class, PROP_LOWIN,
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g_param_spec_double ("low_in", "Lower Input Level", "Lower Input Level",
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0.0, 1.0, DEFAULT_PROP_LOWIN, G_PARAM_READWRITE));
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g_object_class_install_property (obj_class, PROP_HIGHIN,
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g_param_spec_double ("upper_in", "Upper Input Level", "Upper Input Level",
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0.0, 1.0, DEFAULT_PROP_HIGHIN, G_PARAM_READWRITE));
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g_object_class_install_property (obj_class, PROP_LOWOUT,
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g_param_spec_double ("low_out", "Lower Output Level", "Lower Output Level",
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0.0, 1.0, DEFAULT_PROP_LOWOUT, G_PARAM_READWRITE));
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g_object_class_install_property (obj_class, PROP_HIGHOUT,
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g_param_spec_double ("upper_out", "Upper Output Level", "Upper Output Level",
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0.0, 1.0, DEFAULT_PROP_HIGHOUT, G_PARAM_READWRITE));
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// Install GObject properties
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g_object_class_install_property (gobject_class, PROP_LOWIN,
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g_param_spec_int ("low_in", "Lower Input Level", "Lower Input Level",
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0, 65535, DEFAULT_PROP_LOWIN, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_HIGHIN,
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g_param_spec_int ("upper_in", "Upper Input Level", "Upper Input Level",
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0, 65535, DEFAULT_PROP_HIGHIN, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_LOWOUT,
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g_param_spec_int ("low_out", "Lower Output Level", "Lower Output Level",
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0, 255, DEFAULT_PROP_LOWOUT, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_HIGHOUT,
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g_param_spec_int ("upper_out", "Upper Output Level", "Upper Output Level",
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0, 255, DEFAULT_PROP_HIGHOUT, G_PARAM_READWRITE));
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// Register GstBaseTransform virtual functions
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/* Register GstBaseTransform vmethods */
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trans_class->transform_caps = GST_DEBUG_FUNCPTR (gst_videolevels_transform_caps);
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trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_videolevels_set_caps);
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trans_class->transform = GST_DEBUG_FUNCPTR (gst_videolevels_transform);
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trans_class->transform_caps = GST_DEBUG_FUNCPTR (gst_videolevels_transform_caps);
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trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_videolevels_transform_ip);
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trans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_videolevels_get_unit_size);
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/* simply pass the data through if in/out caps are the same */
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trans_class->passthrough_on_same_caps = TRUE;
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}
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/**
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* gst_videolevels_init:
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* @videolevels: GstVideoLevels
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* @g_class: GstVideoLevelsClass
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*
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* Initialize the new element
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*/
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static void
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gst_videolevels_init (GstVideoLevels * videolevels, GstVideoLevelsClass * g_class)
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gst_videolevels_init (GstVideoLevels * videolevels,
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GstVideoLevelsClass * g_class)
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{
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GST_DEBUG_OBJECT (videolevels, "gst_videolevels_init");
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GST_DEBUG_OBJECT (videolevels, "init class instance");
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gst_videolevels_reset (videolevels);
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videolevels->width=0;
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videolevels->height=0;
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videolevels->bpp=16;
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videolevels->depth=16;
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videolevels->levels_table = g_malloc(65536);
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reset(videolevels);
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calculate_tables (videolevels);
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}
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/**
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* gst_videolevels_set_property:
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* @object: #GObject
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* @prop_id: guint
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* @value: #GValue
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* @pspec: #GParamSpec
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*
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*/
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static void
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gst_videolevels_set_property (GObject * object, guint prop_id, const GValue * value,
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GParamSpec * pspec)
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gst_videolevels_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstVideoLevels *videolevels;
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GstVideoLevels *videolevels = GST_VIDEOLEVELS (object);
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g_return_if_fail (GST_IS_VIDEOLEVELS (object));
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videolevels = GST_VIDEOLEVELS (object);
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GST_DEBUG ("setting property %s", pspec->name);
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GST_DEBUG ("gst_videolevels_set_property");
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switch (prop_id) {
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case PROP_LOWIN:
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videolevels->lower_input = g_value_get_int (value);
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calculate_tables (videolevels);
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videolevels->lower_input = g_value_get_double (value);
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gst_videolevels_calculate_tables (videolevels);
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break;
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case PROP_HIGHIN:
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videolevels->upper_input = g_value_get_int (value);
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calculate_tables (videolevels);
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videolevels->upper_input = g_value_get_double (value);
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gst_videolevels_calculate_tables (videolevels);
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break;
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case PROP_LOWOUT:
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videolevels->lower_output = g_value_get_int (value);
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calculate_tables (videolevels);
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videolevels->lower_output = g_value_get_double (value);
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gst_videolevels_calculate_tables (videolevels);
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break;
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case PROP_HIGHOUT:
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videolevels->upper_output = g_value_get_int (value);
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calculate_tables (videolevels);
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videolevels->upper_output = g_value_get_double (value);
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gst_videolevels_calculate_tables (videolevels);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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@ -268,28 +289,34 @@ gst_videolevels_set_property (GObject * object, guint prop_id, const GValue * va
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}
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}
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/**
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* gst_videolevels_get_property:
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* @object: #GObject
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* @prop_id: guint
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* @value: #GValue
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* @pspec: #GParamSpec
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*
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*/
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static void
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gst_videolevels_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstVideoLevels *videolevels;
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GstVideoLevels *videolevels = GST_VIDEOLEVELS (object);
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g_return_if_fail (GST_IS_VIDEOLEVELS (object));
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videolevels = GST_VIDEOLEVELS (object);
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GST_DEBUG ("getting property %s", pspec->name);
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GST_INFO_OBJECT (videolevels, "gst_videolevels_get_property");
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switch (prop_id) {
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case PROP_LOWIN:
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g_value_set_int (value, videolevels->lower_input);
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g_value_set_double (value, videolevels->lower_input);
|
||||
break;
|
||||
case PROP_HIGHIN:
|
||||
g_value_set_int (value, videolevels->upper_input);
|
||||
g_value_set_double (value, videolevels->upper_input);
|
||||
break;
|
||||
case PROP_LOWOUT:
|
||||
g_value_set_int (value, videolevels->lower_output);
|
||||
g_value_set_double (value, videolevels->lower_output);
|
||||
break;
|
||||
case PROP_HIGHOUT:
|
||||
g_value_set_int (value, videolevels->upper_output);
|
||||
g_value_set_double (value, videolevels->upper_output);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
@ -297,6 +324,114 @@ gst_videolevels_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
}
|
||||
}
|
||||
|
||||
/************************************************************************/
|
||||
/* GstBaseTransform vmethod implementations */
|
||||
/************************************************************************/
|
||||
|
||||
/**
|
||||
* gst_videolevels_transform_caps:
|
||||
* @base: #GstBaseTransform
|
||||
* @direction: #GstPadDirection
|
||||
* @caps: #GstCaps
|
||||
*
|
||||
* Given caps on one side, what caps are allowed on the other
|
||||
*
|
||||
* Returns: #GstCaps allowed on other pad
|
||||
*/
|
||||
static GstCaps *
|
||||
gst_videolevels_transform_caps (GstBaseTransform * base,
|
||||
GstPadDirection direction, GstCaps * caps)
|
||||
{
|
||||
GstVideoLevels *videolevels;
|
||||
GstCaps *static_caps;
|
||||
GstCaps *newcaps;
|
||||
GstStructure *structure;
|
||||
const GValue * width;
|
||||
const GValue * height;
|
||||
|
||||
videolevels = GST_VIDEOLEVELS (base);
|
||||
|
||||
GST_DEBUG_OBJECT (caps, "transforming caps (from)");
|
||||
|
||||
/* copy static pad caps to get bpp/depth/endianess */
|
||||
//if (direction == GST_PAD_SINK) {
|
||||
// static_caps = gst_static_pad_template_get_caps (&gst_videolevels_sink_template);
|
||||
//}
|
||||
//else {
|
||||
// static_caps = gst_static_pad_template_get_caps (&gst_videolevels_src_template);
|
||||
//}
|
||||
//structure = gst_caps_get_structure (static_caps, 0);
|
||||
//gst_structure_get_value()
|
||||
//newcaps = gst_caps_copy (caps);
|
||||
//gst_caps_unref (static_caps);
|
||||
|
||||
///* get width and height from proposed caps */
|
||||
//structure = gst_caps_get_structure (caps, 0);
|
||||
//width = gst_structure_get_value (structure, "width");
|
||||
//height = gst_structure_get_value (structure, "height");
|
||||
//
|
||||
///* set width and height to new caps */
|
||||
//structure = gst_caps_get_structure (newcaps, 0);
|
||||
//gst_structure_set_value (structure, "width", width);
|
||||
//gst_structure_set_value (structure, "height", height);
|
||||
|
||||
newcaps = gst_caps_copy (caps);
|
||||
|
||||
/* finish settings caps of the opposite pad */
|
||||
if (direction == GST_PAD_SINK) {
|
||||
GST_DEBUG ("Pad direction is sink");
|
||||
gst_caps_set_simple (newcaps,
|
||||
"bpp", G_TYPE_INT, 8,
|
||||
"depth", G_TYPE_INT, 8,
|
||||
NULL);
|
||||
structure = gst_caps_get_structure (newcaps, 0);
|
||||
gst_structure_remove_field (structure, "endianness");
|
||||
}
|
||||
else {
|
||||
GValue endianness = {0};
|
||||
GValue signed_list = {0};
|
||||
GValue ival = {0};
|
||||
|
||||
GST_DEBUG ("Pad direction is src");
|
||||
|
||||
gst_caps_set_simple (newcaps,
|
||||
"bpp", G_TYPE_INT, 16,
|
||||
"depth", G_TYPE_INT, 16,
|
||||
NULL);
|
||||
structure = gst_caps_get_structure (newcaps, 0);
|
||||
|
||||
/* add BIG/LITTLE endianness to caps */
|
||||
g_value_init (&ival, G_TYPE_INT);
|
||||
g_value_init (&endianness, GST_TYPE_LIST);
|
||||
g_value_set_int (&ival, G_LITTLE_ENDIAN);
|
||||
gst_value_list_append_value (&endianness, &ival);
|
||||
g_value_set_int (&ival, G_BIG_ENDIAN);
|
||||
gst_value_list_append_value (&endianness, &ival);
|
||||
gst_structure_set_value (structure, "endianness", &endianness);
|
||||
|
||||
/* add signed/unsigned to caps */
|
||||
g_value_init (&signed_list, GST_TYPE_LIST);
|
||||
g_value_set_int (&ival, TRUE);
|
||||
gst_value_list_append_value (&signed_list, &ival);
|
||||
g_value_set_int (&ival, FALSE);
|
||||
gst_value_list_append_value (&signed_list, &ival);
|
||||
gst_structure_set_value (structure, "signed", &signed_list);
|
||||
}
|
||||
GST_DEBUG_OBJECT (newcaps, "allowed caps are");
|
||||
|
||||
return newcaps;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_videolevels_set_caps:
|
||||
* base: #GstBaseTransform
|
||||
* incaps: #GstCaps
|
||||
* outcaps: #GstCaps
|
||||
*
|
||||
* Notification of the actual caps set.
|
||||
*
|
||||
* Returns: TRUE on success
|
||||
*/
|
||||
static gboolean
|
||||
gst_videolevels_set_caps (GstBaseTransform * base, GstCaps * incaps,
|
||||
GstCaps * outcaps)
|
||||
@ -310,107 +445,101 @@ gst_videolevels_set_caps (GstBaseTransform * base, GstCaps * incaps,
|
||||
GST_DEBUG_OBJECT (levels,
|
||||
"set_caps: in %" GST_PTR_FORMAT " out %" GST_PTR_FORMAT, incaps, outcaps);
|
||||
|
||||
GST_DEBUG_OBJECT (incaps, "incaps");
|
||||
GST_DEBUG_OBJECT (outcaps, "outcaps");
|
||||
|
||||
/* retrieve input caps info */
|
||||
structure = gst_caps_get_structure (incaps, 0);
|
||||
|
||||
res = gst_structure_get_int (structure, "width", &levels->width);
|
||||
res &= gst_structure_get_int (structure, "height", &levels->height);
|
||||
res &= gst_structure_get_int (structure, "bpp", &levels->bpp);
|
||||
res &= gst_structure_get_int (structure, "depth", &levels->depth);
|
||||
res = gst_structure_get (structure,
|
||||
"width", G_TYPE_INT, &levels->width,
|
||||
"height", G_TYPE_INT, &levels->height,
|
||||
"bpp", G_TYPE_INT, &levels->bpp_in,
|
||||
"depth", G_TYPE_INT, &levels->depth_in,
|
||||
"endianness", G_TYPE_INT, &levels->endianness_in,
|
||||
NULL);
|
||||
if (!res)
|
||||
goto done;
|
||||
return FALSE;
|
||||
|
||||
levels->size = levels->width * levels->height;
|
||||
calculate_tables(levels);
|
||||
if (!gst_structure_get (structure,
|
||||
"signed", G_TYPE_BOOLEAN, &levels->is_signed_in))
|
||||
levels->is_signed_in = FALSE;
|
||||
|
||||
/* retrieve src caps bpp/depth/endianness */
|
||||
structure = gst_caps_get_structure (incaps, 0);
|
||||
res = gst_structure_get (structure,
|
||||
"width", G_TYPE_INT, &levels->width,
|
||||
"height", G_TYPE_INT, &levels->height,
|
||||
"bpp", G_TYPE_INT, &levels->bpp_in,
|
||||
"depth", G_TYPE_INT, &levels->depth_in,
|
||||
"endianness", G_TYPE_INT, &levels->endianness_in,
|
||||
NULL);
|
||||
if (!res)
|
||||
return FALSE;
|
||||
|
||||
levels->stride_in = GST_ROUND_UP_4 (levels->width * levels->depth_in/8);
|
||||
levels->stride_out = GST_ROUND_UP_4 (levels->width * levels->depth_out/8);
|
||||
|
||||
gst_videolevels_calculate_tables (levels);
|
||||
|
||||
done:
|
||||
return res;
|
||||
}
|
||||
|
||||
static GstCaps *
|
||||
gst_videolevels_transform_caps (GstBaseTransform * trans,
|
||||
GstPadDirection direction, GstCaps * caps)
|
||||
/**
|
||||
* gst_videolevels_get_unit_size:
|
||||
* @base: #GstBaseTransform
|
||||
* @caps: #GstCaps
|
||||
* @size: guint size of unit (one frame for video)
|
||||
*
|
||||
* Tells GstBaseTransform the size in bytes of an output frame from the given
|
||||
* caps.
|
||||
*
|
||||
* Returns: TRUE on success
|
||||
*/
|
||||
static gboolean
|
||||
gst_videolevels_get_unit_size (GstBaseTransform * base, GstCaps * caps,
|
||||
guint * size)
|
||||
{
|
||||
GstVideoLevels *videolevels;
|
||||
GstCaps *newcaps;
|
||||
GstStructure *structure;
|
||||
GstStructure *newstruct;
|
||||
int bpp;
|
||||
|
||||
videolevels = GST_VIDEOLEVELS (trans);
|
||||
|
||||
GST_DEBUG_OBJECT (caps, "transforming caps (from)");
|
||||
|
||||
structure = gst_caps_get_structure (caps, 0);
|
||||
|
||||
newcaps = gst_caps_new_simple ("video/x-raw-gray", NULL);
|
||||
|
||||
newstruct = gst_caps_get_structure (newcaps, 0);
|
||||
|
||||
gst_structure_set_value (newstruct, "width",
|
||||
gst_structure_get_value (structure, "width"));
|
||||
gst_structure_set_value (newstruct, "height",
|
||||
gst_structure_get_value (structure, "height"));
|
||||
gst_structure_set_value (newstruct, "framerate",
|
||||
gst_structure_get_value (structure, "framerate"));
|
||||
|
||||
if (direction == GST_PAD_SRC) {
|
||||
GST_CAT_INFO(GST_CAT_DEFAULT, "direction=SRC");
|
||||
bpp = 16;
|
||||
} else {
|
||||
GST_CAT_INFO(GST_CAT_DEFAULT, "direction=SINK");
|
||||
bpp = 8;
|
||||
}
|
||||
|
||||
gst_structure_set (newstruct,
|
||||
"bpp", G_TYPE_INT, bpp,
|
||||
"depth", G_TYPE_INT, bpp,
|
||||
NULL
|
||||
);
|
||||
|
||||
GST_DEBUG_OBJECT (newcaps, "transforming caps (into)");
|
||||
|
||||
return newcaps;
|
||||
}
|
||||
|
||||
static gboolean gst_videolevels_get_unit_size (GstBaseTransform * base,
|
||||
GstCaps * caps, guint * size)
|
||||
{
|
||||
GstStructure *structure;
|
||||
int width;
|
||||
int height;
|
||||
int pixsize;
|
||||
gint width;
|
||||
gint height;
|
||||
gint depth;
|
||||
|
||||
structure = gst_caps_get_structure (caps, 0);
|
||||
|
||||
/* get proposed caps width, height, and depth to determine frame size */
|
||||
if (gst_structure_get_int (structure, "width", &width) &&
|
||||
gst_structure_get_int (structure, "height", &height) &&
|
||||
gst_structure_get_int (structure, "bpp", &pixsize)) {
|
||||
*size = width * height * (pixsize/8);
|
||||
GST_CAT_DEBUG(GST_CAT_DEFAULT, "Get unit size width=%d,height=%d,size=%d",width,height,*size);
|
||||
gst_structure_get_int (structure, "depth", &depth)) {
|
||||
guint stride = GST_ROUND_UP_4 (width*depth/8); /* need 4-byte alignment */
|
||||
*size = stride * height;
|
||||
GST_DEBUG ("Get unit size %dx%d, stride %u, %u bytes", width, height,
|
||||
stride, *size);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
|
||||
("Incomplete caps, some required field missing"));
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static void reset(GstVideoLevels* filter)
|
||||
{
|
||||
filter->width = 0;
|
||||
filter->height = 0;
|
||||
filter->lower_input = DEFAULT_PROP_LOWIN;
|
||||
filter->upper_input = DEFAULT_PROP_HIGHIN;
|
||||
filter->lower_output = DEFAULT_PROP_LOWOUT;
|
||||
filter->upper_output = DEFAULT_PROP_HIGHOUT;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_videolevels_transform:
|
||||
* @base: #GstBaseTransform
|
||||
* @inbuf: #GstBuffer
|
||||
* @outbuf: #GstBuffer
|
||||
*
|
||||
* Transforms input buffer to output buffer.
|
||||
*
|
||||
* Returns: GST_FLOW_OK on success
|
||||
*/
|
||||
static GstFlowReturn
|
||||
gst_videolevels_transform (GstBaseTransform * base, GstBuffer * inbuf,
|
||||
GstBuffer * outbuf)
|
||||
{
|
||||
GstVideoLevels *filter = GST_VIDEOLEVELS (base);
|
||||
guint16 *input;
|
||||
guint8 *output;
|
||||
gpointer input;
|
||||
gpointer output;
|
||||
gboolean ret;
|
||||
|
||||
/*
|
||||
* We need to lock our filter params to prevent changing
|
||||
@ -419,55 +548,219 @@ gst_videolevels_transform (GstBaseTransform * base, GstBuffer * inbuf,
|
||||
*/
|
||||
GST_OBJECT_LOCK (filter);
|
||||
|
||||
input = (guint16 *) GST_BUFFER_DATA (inbuf);
|
||||
output = (guint8 *) GST_BUFFER_DATA (outbuf);
|
||||
input = GST_BUFFER_DATA (inbuf);
|
||||
output = GST_BUFFER_DATA (outbuf);
|
||||
|
||||
do_levels (filter, input, output,
|
||||
filter->height * filter->width);
|
||||
ret = gst_videolevels_do_levels (filter, input, output);
|
||||
|
||||
GST_OBJECT_UNLOCK (filter);
|
||||
|
||||
if (ret)
|
||||
return GST_FLOW_OK;
|
||||
else
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
|
||||
GstFlowReturn gst_videolevels_transform_ip( GstBaseTransform * base, GstBuffer * buf )
|
||||
{
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
static void
|
||||
calculate_tables (GstVideoLevels * videolevels)
|
||||
/************************************************************************/
|
||||
/* GstVideoLevels method implementations */
|
||||
/************************************************************************/
|
||||
|
||||
/**
|
||||
* gst_videolevels_reset:
|
||||
* @videolevels: #GstVideoLevels
|
||||
*
|
||||
* Reset instance variables and free memory
|
||||
*/
|
||||
static void gst_videolevels_reset(GstVideoLevels* videolevels)
|
||||
{
|
||||
int i;
|
||||
guint16 loIn, hiIn;
|
||||
videolevels->width = 0;
|
||||
videolevels->height = 0;
|
||||
|
||||
videolevels->stride_in = 0;
|
||||
videolevels->bpp_in = 0;
|
||||
videolevels->depth_in = 0;
|
||||
videolevels->endianness_in = 0;
|
||||
videolevels->is_signed_in = FALSE;
|
||||
|
||||
videolevels->stride_out = 0;
|
||||
videolevels->bpp_out = 0;
|
||||
videolevels->depth_out = 0;
|
||||
videolevels->endianness_out = 0;
|
||||
|
||||
videolevels->lower_input = DEFAULT_PROP_LOWIN;
|
||||
videolevels->upper_input = DEFAULT_PROP_HIGHIN;
|
||||
videolevels->lower_output = DEFAULT_PROP_LOWOUT;
|
||||
videolevels->upper_output = DEFAULT_PROP_HIGHOUT;
|
||||
|
||||
g_free (videolevels->lookup_table);
|
||||
videolevels->lookup_table = NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_videolevels_calculate_tables
|
||||
* @videolevels: #GstVideoLevels
|
||||
*
|
||||
* Calculate lookup tables based on input and output levels
|
||||
*/
|
||||
static void
|
||||
gst_videolevels_calculate_tables (GstVideoLevels * videolevels)
|
||||
{
|
||||
gint i;
|
||||
guint8 loIn, hiIn;
|
||||
guint8 loOut, hiOut;
|
||||
double slope;
|
||||
gdouble slope;
|
||||
guint8 * lut;
|
||||
|
||||
GST_INFO_OBJECT (videolevels, "gst_videolevels_get_property");
|
||||
GST_DEBUG ("calculating lookup table");
|
||||
|
||||
GST_BASE_TRANSFORM (videolevels)->passthrough = FALSE;
|
||||
|
||||
loIn = videolevels->lower_input;
|
||||
hiIn = videolevels->upper_input;
|
||||
loOut = videolevels->lower_output;
|
||||
hiOut = videolevels->upper_output;
|
||||
if (!videolevels->lookup_table) {
|
||||
videolevels->lookup_table = g_malloc (256);
|
||||
}
|
||||
lut = (guint8*) videolevels->lookup_table;
|
||||
|
||||
loIn = (guint8) videolevels->lower_input * 255;
|
||||
hiIn = (guint8) videolevels->upper_input * 255;
|
||||
loOut = (guint8) videolevels->lower_output * 255;
|
||||
hiOut = (guint8) videolevels->upper_output * 255;
|
||||
|
||||
if (hiIn == loIn)
|
||||
slope = 0;
|
||||
else
|
||||
slope = (double)(hiOut-loOut)/(hiIn-loIn);
|
||||
slope = (videolevels->upper_output - videolevels->lower_output) /
|
||||
(videolevels->upper_input - videolevels->lower_input);
|
||||
|
||||
for (i=0; i<loIn; i++)
|
||||
videolevels->levels_table[i] = loOut;
|
||||
for(i=loIn;i<hiIn;i++) {
|
||||
videolevels->levels_table[i] = loOut+(guint8)((i-loIn)*slope);
|
||||
}
|
||||
for(i=hiIn;i<65536;i++)
|
||||
videolevels->levels_table[i] = hiOut;
|
||||
lut[i] = loOut;
|
||||
for (i=loIn; i<hiIn; i++)
|
||||
lut[i] = loOut + (guint8) ( (i-loIn) * slope);
|
||||
for (i=hiIn; i<256; i++)
|
||||
lut[i] = hiOut;
|
||||
}
|
||||
|
||||
static void
|
||||
do_levels (GstVideoLevels * videolevels, guint16 * indata, guint8* outdata, gint size)
|
||||
/**
|
||||
* gst_videolevels_do_levels
|
||||
* @videolevels: #GstVideoLevels
|
||||
* @indata: input data
|
||||
* @outdata: output data
|
||||
* @size: size of data
|
||||
*
|
||||
* Convert frame using previously calculated LUT
|
||||
*
|
||||
* Returns: TRUE on success
|
||||
*/
|
||||
gboolean
|
||||
gst_videolevels_do_levels (GstVideoLevels * videolevels, gpointer indata,
|
||||
gpointer outdata)
|
||||
{
|
||||
int i;
|
||||
guint8 * dst = outdata;
|
||||
guint16 * src = indata;
|
||||
for (i = 0; i < size; i++) {
|
||||
*dst++ = videolevels->levels_table[*src++];
|
||||
gint r, c;
|
||||
guint8 * lut = (guint8 *) videolevels->lookup_table;
|
||||
|
||||
GST_DEBUG ("Converting frame using LUT");
|
||||
|
||||
if (!videolevels->is_signed_in) {
|
||||
if (videolevels->endianness_in == G_BYTE_ORDER) {
|
||||
for (r = 0; r < videolevels->height; r++) {
|
||||
for (c = 0; c < videolevels->width; c++) {
|
||||
dst[c+r*videolevels->stride_out] =
|
||||
lut[src[c+r*videolevels->stride_in] >> 8];
|
||||
}
|
||||
GST_DEBUG ("Row %d", r);
|
||||
}
|
||||
}
|
||||
else {
|
||||
for (r = 0; r < videolevels->height; r++) {
|
||||
for (c = 0; c < videolevels->width; c++) {
|
||||
dst[c+r*videolevels->stride_out] =
|
||||
lut[GUINT16_FROM_BE(src[c+r*videolevels->stride_in]) >> 8];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
if (videolevels->endianness_in == G_BYTE_ORDER) {
|
||||
for (r = 0; r < videolevels->height; r++) {
|
||||
for (c = 0; c < videolevels->width; c++) {
|
||||
dst[c+r*videolevels->stride_out] =
|
||||
lut[(src[c+r*videolevels->stride_in]+32767) >> 8];
|
||||
}
|
||||
GST_DEBUG ("Row %d", r);
|
||||
}
|
||||
}
|
||||
else {
|
||||
for (r = 0; r < videolevels->height; r++) {
|
||||
for (c = 0; c < videolevels->width; c++) {
|
||||
dst[c+r*videolevels->stride_out] =
|
||||
lut[(GUINT16_FROM_BE(src[c+r*videolevels->stride_in])+32767) >> 8];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
GST_DEBUG ("DONE converting frame using LUT");
|
||||
|
||||
return TRUE;
|
||||
|
||||
//gdouble loIn = videolevels->lower_input;
|
||||
//gdouble hiIn = videolevels->upper_input;
|
||||
//gdouble loOut = videolevels->lower_output;
|
||||
//gdouble hiOut = videolevels->upper_output;
|
||||
//gdouble slope;
|
||||
//gdouble yintercept;
|
||||
//guint32 dst_max;
|
||||
//guint32 src_max;
|
||||
//
|
||||
///* y=mx+b */
|
||||
///* check for division by zero */
|
||||
//if (hiIn == loIn)
|
||||
// slope=0;
|
||||
//else
|
||||
// slope = (hiOut-loOut)/(hiIn-loIn);
|
||||
//yintercept = loOut - slope*loIn;
|
||||
|
||||
//src_max = (1 << videolevels->bpp_in) - 1;
|
||||
//dst_max = (1 << videolevels->bpp_out) - 1;
|
||||
|
||||
/* TODO doesn't handle byte ordering */
|
||||
//if (videolevels->depth_in == 32 && videolevels->depth_out == 32) {
|
||||
// guint32 * src = indata;
|
||||
// guint32 * dst = outdata;
|
||||
// gint r;
|
||||
// gint c;
|
||||
// guint32 b = dst_max * yintercept;
|
||||
// gdouble m = slope*dst_max/src_max;
|
||||
|
||||
|
||||
// for (r = 0; r < videolevels->height; r++) {
|
||||
// for (c = 0; c < videolevels->width; c++) {
|
||||
// dst[c+r*videolevels->stride_out] = m*src[c+r*videolevels->stride_in] + b;
|
||||
// }
|
||||
// }
|
||||
//}
|
||||
//else if (videolevels->depth_in == 16 && videolevels->depth_out == 8) {
|
||||
// guint16 * src = indata;
|
||||
// guint8 * dst = outdata;
|
||||
// gint r;
|
||||
// gint c;
|
||||
// guint8 b = dst_max * yintercept;
|
||||
// gdouble m = slope*dst_max/src_max;
|
||||
|
||||
|
||||
// for (r = 0; r < videolevels->height; r++) {
|
||||
// for (c = 0; c < videolevels->width; c++) {
|
||||
// dst[c+r*videolevels->stride_out] = m*src[c+r*videolevels->stride_in] + b;
|
||||
// }
|
||||
// }
|
||||
//}
|
||||
//else {
|
||||
// return FALSE;
|
||||
//}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
@ -3,6 +3,7 @@
|
||||
* Copyright (C) <2003> David Schleef <ds@schleef.org>
|
||||
* Copyright (C) 2003 Arwed v. Merkatz <v.merkatz@gmx.net>
|
||||
* Copyright (C) 2006 Mark Nauwelaerts <manauw@skynet.be>
|
||||
* Copyright (C) 2010 United States Government, Joshua M. Doe <oss@nvl.army.mil>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
@ -57,6 +58,7 @@ struct _GstVideoLevels
|
||||
gint bpp;
|
||||
gint depth;
|
||||
gint size;
|
||||
gboolean is_signed_in;
|
||||
|
||||
/* properties */
|
||||
guint16 lower_input;
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user