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Original commit message from CVS: * ext/aalib/gstaasink.c: * ext/annodex/gstcmmldec.c: * ext/annodex/gstcmmlenc.c: * ext/cairo/gsttextoverlay.c: * ext/cairo/gsttimeoverlay.c: * ext/cdio/gstcdiocddasrc.c: * ext/dv/gstdvdec.c: * ext/dv/gstdvdemux.c: * ext/esd/esdmon.c: * ext/esd/esdsink.c: * ext/flac/gstflacenc.c: * ext/flac/gstflactag.c: * ext/gconf/gstgconfaudiosink.c: (gst_gconf_audio_sink_base_init): * ext/gconf/gstgconfaudiosrc.c: (gst_gconf_audio_src_base_init): * ext/gconf/gstgconfvideosink.c: (gst_gconf_video_sink_base_init): * ext/gconf/gstgconfvideosrc.c: (gst_gconf_video_src_base_init): * ext/gdk_pixbuf/pixbufscale.c: * ext/hal/gsthalaudiosink.c: (gst_hal_audio_sink_base_init): * ext/hal/gsthalaudiosrc.c: (gst_hal_audio_src_base_init): * ext/jpeg/gstjpegdec.c: * ext/jpeg/gstjpegenc.c: * ext/jpeg/gstsmokedec.c: * ext/jpeg/gstsmokeenc.c: * ext/libcaca/gstcacasink.c: * ext/libmng/gstmngdec.c: * ext/libmng/gstmngenc.c: * ext/libpng/gstpngdec.c: * ext/libpng/gstpngenc.c: * ext/mikmod/gstmikmod.c: * ext/raw1394/gstdv1394src.c: * ext/shout2/gstshout2.c: (gst_shout2send_init): * ext/shout2/gstshout2.h: * ext/speex/gstspeexdec.c: * ext/speex/gstspeexenc.c: * gst/alpha/gstalpha.c: * gst/alpha/gstalphacolor.c: * gst/apetag/gstapedemux.c: * gst/auparse/gstauparse.c: * gst/autodetect/gstautoaudiosink.c: (gst_auto_audio_sink_base_init): * gst/autodetect/gstautovideosink.c: (gst_auto_video_sink_base_init): * gst/avi/gstavidemux.c: (gst_avi_demux_base_init): * gst/avi/gstavimux.c: (gst_avimux_base_init): * gst/cutter/gstcutter.c: * gst/debug/breakmydata.c: * gst/debug/efence.c: * gst/debug/gstnavigationtest.c: * gst/debug/gstnavseek.c: * gst/debug/negotiation.c: * gst/debug/progressreport.c: * gst/debug/testplugin.c: * gst/effectv/gstaging.c: * gst/effectv/gstdice.c: * gst/effectv/gstedge.c: * gst/effectv/gstquark.c: * gst/effectv/gstrev.c: * gst/effectv/gstshagadelic.c: * gst/effectv/gstvertigo.c: * gst/effectv/gstwarp.c: * gst/flx/gstflxdec.c: * gst/goom/gstgoom.c: * gst/icydemux/gsticydemux.c: * gst/id3demux/gstid3demux.c: * gst/interleave/deinterleave.c: * gst/interleave/interleave.c: * gst/law/alaw-decode.c: (gst_alawdec_base_init): * gst/law/alaw-encode.c: (gst_alawenc_base_init): * gst/law/mulaw-decode.c: (gst_mulawdec_base_init): * gst/law/mulaw-encode.c: (gst_mulawenc_base_init): * gst/level/gstlevel.c: * gst/matroska/matroska-demux.c: (gst_matroska_demux_base_init): * gst/matroska/matroska-mux.c: (gst_matroska_mux_base_init): * gst/median/gstmedian.c: * gst/monoscope/gstmonoscope.c: * gst/multipart/multipartdemux.c: * gst/multipart/multipartmux.c: * gst/oldcore/gstaggregator.c: * gst/oldcore/gstfdsink.c: * gst/oldcore/gstmd5sink.c: * gst/oldcore/gstmultifilesrc.c: * gst/oldcore/gstpipefilter.c: * gst/oldcore/gstshaper.c: * gst/oldcore/gststatistics.c: * gst/rtp/gstasteriskh263.c: * gst/rtp/gstrtpL16depay.c: * gst/rtp/gstrtpL16pay.c: * gst/rtp/gstrtpamrdepay.c: * gst/rtp/gstrtpamrpay.c: * gst/rtp/gstrtpdepay.c: * gst/rtp/gstrtpgsmpay.c: * gst/rtp/gstrtph263pay.c: * gst/rtp/gstrtph263pdepay.c: * gst/rtp/gstrtph263ppay.c: * gst/rtp/gstrtpilbcdepay.c: * gst/rtp/gstrtpmp4gpay.c: * gst/rtp/gstrtpmp4vdepay.c: * gst/rtp/gstrtpmp4vpay.c: * gst/rtp/gstrtpmpadepay.c: * gst/rtp/gstrtpmpapay.c: * gst/rtp/gstrtppcmadepay.c: * gst/rtp/gstrtppcmapay.c: * gst/rtp/gstrtppcmudepay.c: * gst/rtp/gstrtppcmupay.c: * gst/rtp/gstrtpspeexdepay.c: * gst/rtp/gstrtpspeexpay.c: * gst/rtsp/gstrtpdec.c: * gst/rtsp/gstrtspsrc.c: * gst/smpte/gstsmpte.c: * gst/udp/gstdynudpsink.c: * gst/udp/gstmultiudpsink.c: * gst/udp/gstudpsink.c: * gst/udp/gstudpsrc.c: * gst/videobox/gstvideobox.c: * gst/videofilter/gstgamma.c: (gst_gamma_base_init): * gst/videofilter/gstvideobalance.c: * gst/videofilter/gstvideoflip.c: * gst/videofilter/gstvideotemplate.c: (gst_videotemplate_base_init): * gst/videomixer/videomixer.c: * gst/wavparse/gstwavparse.c: (gst_wavparse_base_init), (gst_wavparse_class_init), (gst_wavparse_dispose), (gst_wavparse_reset), (gst_wavparse_init), (gst_wavparse_perform_seek), (gst_wavparse_peek_chunk_info), (gst_wavparse_peek_chunk), (gst_wavparse_stream_headers), (gst_wavparse_parse_stream_init), (gst_wavparse_send_event), (gst_wavparse_add_src_pad), (gst_wavparse_stream_data), (gst_wavparse_chain), (gst_wavparse_srcpad_event), (gst_wavparse_sink_activate), (gst_wavparse_sink_activate_pull), (gst_wavparse_change_state): * gst/wavparse/gstwavparse.h: * sys/oss/gstossmixerelement.c: * sys/oss/gstosssink.c: * sys/oss/gstosssrc.c: * sys/osxaudio/gstosxaudioelement.c: * sys/osxaudio/gstosxaudiosink.c: * sys/osxaudio/gstosxaudiosrc.c: * sys/sunaudio/gstsunaudiomixer.c: * sys/sunaudio/gstsunaudiosink.c: Define GstElementDetails as const and also static (when defined as global)
640 lines
17 KiB
C
640 lines
17 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> 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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* This file was (probably) generated from gstvideobalance.c,
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* gstvideobalance.c,v 1.7 2003/11/08 02:48:59 dschleef Exp
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*/
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/**
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* SECTION:element-videobalance
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*
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* <refsect2>
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* <para>
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* Adjusts brightness, contrast, hue, saturation on a video stream.
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* </para>
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* <title>Example launch line</title>
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* <para>
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* <programlisting>
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* gst-launch videotestsrc ! videobalance saturation=0.0 ! ffmpegcolorspace ! ximagesink
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* </programlisting>
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* This pipeline converts the image to black and white by setting the saturation to 0.0.
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* </para>
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* </refsect2>
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*
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* Last reviewed on 2006-03-03 (0.10.3)
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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 "gstvideobalance.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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#include <gst/interfaces/colorbalance.h>
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#ifdef WIN32
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#define rint(x) (floor((x)+0.5))
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#endif
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static const GstElementDetails video_balance_details =
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GST_ELEMENT_DETAILS ("Video balance",
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"Filter/Effect/Video",
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"Adjusts brightness, contrast, hue, saturation on a video stream",
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"David Schleef <ds@schleef.org>");
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/* GstVideoBalance signals and args */
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#define DEFAULT_PROP_CONTRAST 1.0
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#define DEFAULT_PROP_BRIGHTNESS 0.0
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#define DEFAULT_PROP_HUE 0.0
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#define DEFAULT_PROP_SATURATION 1.0
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enum
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{
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PROP_0,
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PROP_CONTRAST,
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PROP_BRIGHTNESS,
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PROP_HUE,
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PROP_SATURATION
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};
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static GstStaticPadTemplate gst_video_balance_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_YUV ("{ IYUV, I420, YV12 }"))
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);
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static GstStaticPadTemplate gst_video_balance_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_YUV ("{ IYUV, I420, YV12 }"))
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);
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/*
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* look-up tables (LUT).
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*/
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static void
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gst_video_balance_update_tables_planar411 (GstVideoBalance * vb)
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{
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gint i, j;
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gdouble y, u, v, hue_cos, hue_sin;
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/* Y */
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for (i = 0; i < 256; i++) {
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y = 16 + ((i - 16) * vb->contrast + vb->brightness * 255);
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if (y < 0)
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y = 0;
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else if (y > 255)
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y = 255;
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vb->tabley[i] = rint (y);
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}
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/* FIXME this is a bogus transformation for hue, but you get
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* the idea */
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hue_cos = cos (M_PI * vb->hue);
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hue_sin = sin (M_PI * vb->hue);
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/* U/V lookup tables are 2D, since we need both U/V for each table
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* separately. */
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for (i = -128; i < 128; i++) {
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for (j = -128; j < 128; j++) {
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u = 128 + ((i * hue_cos + j * hue_sin) * vb->saturation);
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v = 128 + ((-i * hue_sin + j * hue_cos) * vb->saturation);
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if (u < 0)
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u = 0;
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else if (u > 255)
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u = 255;
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if (v < 0)
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v = 0;
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else if (v > 255)
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v = 255;
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vb->tableu[i + 128][j + 128] = rint (u);
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vb->tablev[i + 128][j + 128] = rint (v);
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}
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}
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}
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static gboolean
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gst_video_balance_is_passthrough (GstVideoBalance * videobalance)
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{
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return videobalance->contrast == 1.0 &&
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videobalance->brightness == 0.0 &&
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videobalance->hue == 0.0 && videobalance->saturation == 1.0;
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}
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static void
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gst_video_balance_update_properties (GstVideoBalance * videobalance)
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{
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videobalance->passthru = gst_video_balance_is_passthrough (videobalance);
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if (!videobalance->passthru) {
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gst_video_balance_update_tables_planar411 (videobalance);
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}
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}
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#ifndef HAVE_LIBOIL
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void
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oil_tablelookup_u8 (guint8 * dest, int dstr, guint8 * src, int sstr,
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guint8 * table, int tstr, int n)
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{
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int i;
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for (i = 0; i < n; i++) {
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*dest = table[*src * tstr];
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dest += dstr;
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src += sstr;
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}
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}
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#endif
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/* Useful macros */
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#define GST_VIDEO_I420_Y_ROWSTRIDE(width) (GST_ROUND_UP_4(width))
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#define GST_VIDEO_I420_U_ROWSTRIDE(width) (GST_ROUND_UP_8(width)/2)
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#define GST_VIDEO_I420_V_ROWSTRIDE(width) ((GST_ROUND_UP_8(GST_VIDEO_I420_Y_ROWSTRIDE(width)))/2)
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#define GST_VIDEO_I420_Y_OFFSET(w,h) (0)
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#define GST_VIDEO_I420_U_OFFSET(w,h) (GST_VIDEO_I420_Y_OFFSET(w,h)+(GST_VIDEO_I420_Y_ROWSTRIDE(w)*GST_ROUND_UP_2(h)))
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#define GST_VIDEO_I420_V_OFFSET(w,h) (GST_VIDEO_I420_U_OFFSET(w,h)+(GST_VIDEO_I420_U_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
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#define GST_VIDEO_I420_SIZE(w,h) (GST_VIDEO_I420_V_OFFSET(w,h)+(GST_VIDEO_I420_V_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
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static void
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gst_video_balance_planar411_ip (GstVideoBalance * videobalance, guint8 * data,
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gint width, gint height)
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{
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int x, y;
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guint8 *ydata;
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guint8 *udata, *vdata;
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gint ystride, ustride, vstride;
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gint width2, height2;
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ydata = data + GST_VIDEO_I420_Y_OFFSET (width, height);
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ystride = GST_VIDEO_I420_Y_ROWSTRIDE (width);
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for (y = 0; y < height; y++) {
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oil_tablelookup_u8 (ydata, 1, ydata, 1, videobalance->tabley, 1, width);
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ydata += ystride;
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}
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width2 = width >> 1;
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height2 = height >> 1;
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udata = data + GST_VIDEO_I420_U_OFFSET (width, height);
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vdata = data + GST_VIDEO_I420_V_OFFSET (width, height);
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ustride = GST_VIDEO_I420_U_ROWSTRIDE (width);
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vstride = GST_VIDEO_I420_V_ROWSTRIDE (width);
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for (y = 0; y < height2; y++) {
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guint8 *uptr, *vptr;
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guint8 u1, v1;
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uptr = udata + y * ustride;
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vptr = vdata + y * vstride;
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for (x = 0; x < width2; x++) {
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u1 = *uptr;
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v1 = *vptr;
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*uptr++ = videobalance->tableu[u1][v1];
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*vptr++ = videobalance->tablev[u1][v1];
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}
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}
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}
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/* get notified of caps and plug in the correct process function */
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static gboolean
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gst_video_balance_set_caps (GstBaseTransform * base, GstCaps * incaps,
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GstCaps * outcaps)
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{
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GstVideoBalance *this;
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GstStructure *structure;
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gboolean res;
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this = GST_VIDEO_BALANCE (base);
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GST_DEBUG_OBJECT (this,
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"set_caps: in %" GST_PTR_FORMAT " out %" GST_PTR_FORMAT, incaps, outcaps);
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structure = gst_caps_get_structure (incaps, 0);
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res = gst_structure_get_int (structure, "width", &this->width);
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res &= gst_structure_get_int (structure, "height", &this->height);
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if (!res)
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goto done;
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this->size = GST_VIDEO_I420_SIZE (this->width, this->height);
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done:
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return res;
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}
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static GstFlowReturn
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gst_video_balance_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
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{
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GstVideoBalance *videobalance;
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guint8 *data;
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guint size;
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gint width, height;
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videobalance = GST_VIDEO_BALANCE (base);
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/* if no change is needed, we are done */
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if (videobalance->passthru)
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goto done;
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data = GST_BUFFER_DATA (outbuf);
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size = GST_BUFFER_SIZE (outbuf);
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width = videobalance->width;
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height = videobalance->height;
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if (size < videobalance->size)
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goto wrong_size;
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gst_video_balance_planar411_ip (videobalance, data,
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videobalance->width, videobalance->height);
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done:
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return GST_FLOW_OK;
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/* ERRORS */
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wrong_size:
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{
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GST_ELEMENT_ERROR (videobalance, STREAM, FORMAT,
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(NULL), ("Invalid buffer size %d, expected %d", size,
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videobalance->size));
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return GST_FLOW_ERROR;
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}
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}
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/****************
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* Boilerplate
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*/
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static GstVideoFilterClass *parent_class = NULL;
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static void gst_video_balance_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_video_balance_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void
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gst_video_balance_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_set_details (element_class, &video_balance_details);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_video_balance_sink_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_video_balance_src_template));
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}
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static void
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gst_video_balance_finalize (GObject * object)
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{
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GList *channels = NULL;
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GstVideoBalance *balance;
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gint i;
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balance = GST_VIDEO_BALANCE (object);
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if (balance->tableu) {
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for (i = 0; i < 256; i++)
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g_free (balance->tableu[i]);
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g_free (balance->tableu);
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balance->tableu = NULL;
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}
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if (balance->tablev) {
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for (i = 0; i < 256; i++)
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g_free (balance->tablev[i]);
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g_free (balance->tablev);
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balance->tablev = NULL;
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}
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if (balance->tabley) {
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g_free (balance->tabley);
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balance->tabley = NULL;
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}
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channels = balance->channels;
|
|
while (channels) {
|
|
GstColorBalanceChannel *channel = channels->data;
|
|
|
|
g_object_unref (channel);
|
|
channels->data = NULL;
|
|
channels = g_list_next (channels);
|
|
}
|
|
|
|
if (balance->channels)
|
|
g_list_free (balance->channels);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gst_video_balance_class_init (gpointer g_class, gpointer class_data)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstBaseTransformClass *trans_class;
|
|
GstVideoFilterClass *videofilter_class;
|
|
|
|
gobject_class = G_OBJECT_CLASS (g_class);
|
|
trans_class = GST_BASE_TRANSFORM_CLASS (g_class);
|
|
videofilter_class = GST_VIDEO_FILTER_CLASS (g_class);
|
|
|
|
parent_class = g_type_class_peek_parent (g_class);
|
|
|
|
gobject_class->set_property = gst_video_balance_set_property;
|
|
gobject_class->get_property = gst_video_balance_get_property;
|
|
|
|
g_object_class_install_property (gobject_class, PROP_CONTRAST,
|
|
g_param_spec_double ("contrast", "Contrast", "contrast",
|
|
0.0, 2.0, DEFAULT_PROP_CONTRAST, G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, PROP_BRIGHTNESS,
|
|
g_param_spec_double ("brightness", "Brightness", "brightness",
|
|
-1.0, 1.0, DEFAULT_PROP_BRIGHTNESS, G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, PROP_HUE,
|
|
g_param_spec_double ("hue", "Hue", "hue",
|
|
-1.0, 1.0, DEFAULT_PROP_HUE, G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, PROP_SATURATION,
|
|
g_param_spec_double ("saturation", "Saturation", "saturation",
|
|
0.0, 2.0, DEFAULT_PROP_SATURATION, G_PARAM_READWRITE));
|
|
|
|
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_video_balance_finalize);
|
|
|
|
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_balance_set_caps);
|
|
trans_class->transform_ip =
|
|
GST_DEBUG_FUNCPTR (gst_video_balance_transform_ip);
|
|
|
|
#ifdef HAVE_LIBOIL
|
|
oil_init ();
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
gst_video_balance_init (GTypeInstance * instance, gpointer g_class)
|
|
{
|
|
GstVideoBalance *videobalance = GST_VIDEO_BALANCE (instance);
|
|
GstVideoFilter *videofilter;
|
|
char *channels[4] = { "HUE", "SATURATION",
|
|
"BRIGHTNESS", "CONTRAST"
|
|
};
|
|
gint i;
|
|
|
|
GST_DEBUG ("gst_video_balance_init");
|
|
|
|
videofilter = GST_VIDEO_FILTER (videobalance);
|
|
|
|
/* do stuff */
|
|
videobalance->contrast = DEFAULT_PROP_CONTRAST;
|
|
videobalance->brightness = DEFAULT_PROP_BRIGHTNESS;
|
|
videobalance->hue = DEFAULT_PROP_HUE;
|
|
videobalance->saturation = DEFAULT_PROP_SATURATION;
|
|
|
|
gst_video_balance_update_properties (videobalance);
|
|
|
|
videobalance->tabley = g_new (guint8, 256);
|
|
videobalance->tableu = g_new (guint8 *, 256);
|
|
videobalance->tablev = g_new (guint8 *, 256);
|
|
for (i = 0; i < 256; i++) {
|
|
videobalance->tableu[i] = g_new (guint8, 256);
|
|
videobalance->tablev[i] = g_new (guint8, 256);
|
|
}
|
|
|
|
/* Generate the channels list */
|
|
for (i = 0; i < (sizeof (channels) / sizeof (char *)); i++) {
|
|
GstColorBalanceChannel *channel;
|
|
|
|
channel = g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL, NULL);
|
|
channel->label = g_strdup (channels[i]);
|
|
channel->min_value = -1000;
|
|
channel->max_value = 1000;
|
|
|
|
videobalance->channels = g_list_append (videobalance->channels, channel);
|
|
}
|
|
|
|
}
|
|
|
|
static gboolean
|
|
gst_video_balance_interface_supported (GstImplementsInterface * iface,
|
|
GType type)
|
|
{
|
|
g_assert (type == GST_TYPE_COLOR_BALANCE);
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_video_balance_interface_init (GstImplementsInterfaceClass * klass)
|
|
{
|
|
klass->supported = gst_video_balance_interface_supported;
|
|
}
|
|
|
|
static const GList *
|
|
gst_video_balance_colorbalance_list_channels (GstColorBalance * balance)
|
|
{
|
|
GstVideoBalance *videobalance = GST_VIDEO_BALANCE (balance);
|
|
|
|
g_return_val_if_fail (videobalance != NULL, NULL);
|
|
g_return_val_if_fail (GST_IS_VIDEO_BALANCE (videobalance), NULL);
|
|
|
|
return videobalance->channels;
|
|
}
|
|
|
|
static void
|
|
gst_video_balance_colorbalance_set_value (GstColorBalance * balance,
|
|
GstColorBalanceChannel * channel, gint value)
|
|
{
|
|
GstVideoBalance *vb = GST_VIDEO_BALANCE (balance);
|
|
|
|
g_return_if_fail (vb != NULL);
|
|
g_return_if_fail (GST_IS_VIDEO_BALANCE (vb));
|
|
g_return_if_fail (GST_IS_VIDEO_FILTER (vb));
|
|
g_return_if_fail (channel->label != NULL);
|
|
|
|
if (!g_ascii_strcasecmp (channel->label, "HUE")) {
|
|
vb->hue = (value + 1000.0) * 2.0 / 2000.0 - 1.0;
|
|
} else if (!g_ascii_strcasecmp (channel->label, "SATURATION")) {
|
|
vb->saturation = (value + 1000.0) * 2.0 / 2000.0;
|
|
} else if (!g_ascii_strcasecmp (channel->label, "BRIGHTNESS")) {
|
|
vb->brightness = (value + 1000.0) * 2.0 / 2000.0 - 1.0;
|
|
} else if (!g_ascii_strcasecmp (channel->label, "CONTRAST")) {
|
|
vb->contrast = (value + 1000.0) * 2.0 / 2000.0;
|
|
}
|
|
|
|
gst_video_balance_update_properties (vb);
|
|
}
|
|
|
|
static gint
|
|
gst_video_balance_colorbalance_get_value (GstColorBalance * balance,
|
|
GstColorBalanceChannel * channel)
|
|
{
|
|
GstVideoBalance *vb = GST_VIDEO_BALANCE (balance);
|
|
gint value = 0;
|
|
|
|
g_return_val_if_fail (vb != NULL, 0);
|
|
g_return_val_if_fail (GST_IS_VIDEO_BALANCE (vb), 0);
|
|
g_return_val_if_fail (channel->label != NULL, 0);
|
|
|
|
if (!g_ascii_strcasecmp (channel->label, "HUE")) {
|
|
value = (vb->hue + 1) * 2000.0 / 2.0 - 1000.0;
|
|
} else if (!g_ascii_strcasecmp (channel->label, "SATURATION")) {
|
|
value = vb->saturation * 2000.0 / 2.0 - 1000.0;
|
|
} else if (!g_ascii_strcasecmp (channel->label, "BRIGHTNESS")) {
|
|
value = (vb->brightness + 1) * 2000.0 / 2.0 - 1000.0;
|
|
} else if (!g_ascii_strcasecmp (channel->label, "CONTRAST")) {
|
|
value = vb->contrast * 2000.0 / 2.0 - 1000.0;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
static void
|
|
gst_video_balance_colorbalance_init (GstColorBalanceClass * iface)
|
|
{
|
|
GST_COLOR_BALANCE_TYPE (iface) = GST_COLOR_BALANCE_SOFTWARE;
|
|
iface->list_channels = gst_video_balance_colorbalance_list_channels;
|
|
iface->set_value = gst_video_balance_colorbalance_set_value;
|
|
iface->get_value = gst_video_balance_colorbalance_get_value;
|
|
}
|
|
|
|
static void
|
|
gst_video_balance_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstVideoBalance *src;
|
|
|
|
src = GST_VIDEO_BALANCE (object);
|
|
|
|
GST_DEBUG ("gst_video_balance_set_property");
|
|
switch (prop_id) {
|
|
case PROP_CONTRAST:
|
|
src->contrast = g_value_get_double (value);
|
|
break;
|
|
case PROP_BRIGHTNESS:
|
|
src->brightness = g_value_get_double (value);
|
|
break;
|
|
case PROP_HUE:
|
|
src->hue = g_value_get_double (value);
|
|
break;
|
|
case PROP_SATURATION:
|
|
src->saturation = g_value_get_double (value);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
gst_video_balance_update_properties (src);
|
|
}
|
|
|
|
static void
|
|
gst_video_balance_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstVideoBalance *src;
|
|
|
|
src = GST_VIDEO_BALANCE (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_CONTRAST:
|
|
g_value_set_double (value, src->contrast);
|
|
break;
|
|
case PROP_BRIGHTNESS:
|
|
g_value_set_double (value, src->brightness);
|
|
break;
|
|
case PROP_HUE:
|
|
g_value_set_double (value, src->hue);
|
|
break;
|
|
case PROP_SATURATION:
|
|
g_value_set_double (value, src->saturation);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
GType
|
|
gst_video_balance_get_type (void)
|
|
{
|
|
static GType video_balance_type = 0;
|
|
|
|
if (!video_balance_type) {
|
|
static const GTypeInfo video_balance_info = {
|
|
sizeof (GstVideoBalanceClass),
|
|
gst_video_balance_base_init,
|
|
NULL,
|
|
gst_video_balance_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstVideoBalance),
|
|
0,
|
|
gst_video_balance_init,
|
|
};
|
|
|
|
static const GInterfaceInfo iface_info = {
|
|
(GInterfaceInitFunc) gst_video_balance_interface_init,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
|
|
static const GInterfaceInfo colorbalance_info = {
|
|
(GInterfaceInitFunc) gst_video_balance_colorbalance_init,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
|
|
video_balance_type = g_type_register_static (GST_TYPE_VIDEO_FILTER,
|
|
"GstVideoBalance", &video_balance_info, 0);
|
|
|
|
g_type_add_interface_static (video_balance_type,
|
|
GST_TYPE_IMPLEMENTS_INTERFACE, &iface_info);
|
|
g_type_add_interface_static (video_balance_type, GST_TYPE_COLOR_BALANCE,
|
|
&colorbalance_info);
|
|
}
|
|
return video_balance_type;
|
|
}
|
|
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
return gst_element_register (plugin, "videobalance", GST_RANK_NONE,
|
|
GST_TYPE_VIDEO_BALANCE);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"videobalance",
|
|
"Changes hue, saturation, brightness etc. on video images",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
|