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Original commit message from CVS: * ext/amrwb/gstamrwbdec.c: (gst_amrwbdec_init): * ext/amrwb/gstamrwbenc.c: (gst_amrwbenc_init): * ext/amrwb/gstamrwbparse.c: (gst_amrwbparse_init): * ext/audioresample/gstaudioresample.c: * ext/bz2/gstbz2dec.c: (gst_bz2dec_init): * ext/bz2/gstbz2enc.c: (gst_bz2enc_init): * ext/divx/gstdivxdec.c: (gst_divxdec_init): * ext/divx/gstdivxenc.c: (gst_divxenc_init): * ext/faac/gstfaac.c: (gst_faac_init): * ext/gsm/gstgsmdec.c: (gst_gsmdec_init): * ext/gsm/gstgsmenc.c: (gst_gsmenc_init): * ext/hermes/gsthermescolorspace.c: (gst_hermes_colorspace_init): * ext/lcs/gstcolorspace.c: (gst_colorspace_init): * ext/libfame/gstlibfame.c: (gst_fameenc_init): * ext/snapshot/gstsnapshot.c: (gst_snapshot_init): * ext/spc/gstspc.c: (gst_spc_dec_init): * ext/swfdec/gstswfdec.c: (gst_swfdec_init): * ext/xvid/gstxvidenc.c: (gst_xvidenc_init): * gst/cdxaparse/gstcdxaparse.c: (gst_cdxa_parse_init): * gst/cdxaparse/gstcdxastrip.c: (gst_cdxastrip_init): * gst/chart/gstchart.c: (gst_chart_init): * gst/colorspace/gstcolorspace.c: (gst_colorspace_init): * gst/festival/gstfestival.c: (gst_festival_init): * gst/freeze/gstfreeze.c: (gst_freeze_init): * gst/mixmatrix/mixmatrix.c: (gst_mixmatrix_request_new_pad): * gst/mpeg1sys/gstmpeg1systemencode.c: (gst_system_encode_init): * gst/mpeg2sub/gstmpeg2subt.c: (gst_mpeg2subt_init): * gst/nsf/gstnsf.c: (gst_nsfdec_init): * gst/overlay/gstoverlay.c: (gst_overlay_init): * gst/passthrough/gstpassthrough.c: (passthrough_init): * gst/playondemand/gstplayondemand.c: (play_on_demand_init): * gst/smooth/gstsmooth.c: (gst_smooth_init): * gst/smoothwave/gstsmoothwave.c: (gst_smoothwave_init): * gst/speed/gstspeed.c: (speed_init): * gst/vbidec/gstvbidec.c: (gst_vbidec_init): * gst/videodrop/gstvideodrop.c: (gst_videodrop_init): * sys/dxr3/dxr3spusink.c: (dxr3spusink_init): * sys/dxr3/dxr3videosink.c: (dxr3videosink_init): * sys/qcam/gstqcamsrc.c: (gst_qcamsrc_init): Fix leaks.
444 lines
13 KiB
C
444 lines
13 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/audio/audio.h>
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#include "gstsmoothwave.h"
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static const GstElementDetails gst_smoothwave_details =
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GST_ELEMENT_DETAILS ("Smooth waveform",
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"Visualization",
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"Fading grayscale waveform display",
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"Erik Walthinsen <omega@cse.ogi.edu>");
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/* SmoothWave signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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static void gst_smoothwave_base_init (gpointer g_class);
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static void gst_smoothwave_class_init (GstSmoothWaveClass * klass);
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static void gst_smoothwave_init (GstSmoothWave * smoothwave);
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static void gst_smoothwave_dispose (GObject * object);
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static GstStateChangeReturn gst_sw_change_state (GstElement * element,
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GstStateChange transition);
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static void gst_smoothwave_chain (GstPad * pad, GstData * _data);
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static GstPadLinkReturn gst_sw_sinklink (GstPad * pad, const GstCaps * caps);
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static GstPadLinkReturn gst_sw_srclink (GstPad * pad, const GstCaps * caps);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_smoothwave_signals[LAST_SIGNAL] = { 0 }; */
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#if G_BYTE_ORDER == G_BIG_ENDIAN
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static GstStaticPadTemplate src_template = 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 ("video/x-raw-rgb, "
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"bpp = (int) 32, "
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"depth = (int) 24, "
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"endianness = (int) BIG_ENDIAN, "
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"red_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
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"green_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
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"blue_mask = (int) " GST_VIDEO_BYTE4_MASK_32 ", "
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"width = (int)512, "
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"height = (int)256, " "framerate = " GST_VIDEO_FPS_RANGE)
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);
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#else
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static GstStaticPadTemplate src_template = 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 ("video/x-raw-rgb, "
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"bpp = (int) 32, "
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"depth = (int) 24, "
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"endianness = (int) BIG_ENDIAN, "
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"red_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
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"green_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
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"blue_mask = (int) " GST_VIDEO_BYTE1_MASK_32 ", "
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"width = (int)512, "
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"height = (int)256, " "framerate = " GST_VIDEO_FPS_RANGE)
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);
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#endif
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static GstStaticPadTemplate sink_template = 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 ("audio/x-raw-int, "
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"rate = (int) [ 1, MAX ], "
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"channels = (int) [ 1, 2 ], "
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"endianness = (int) BYTE_ORDER, "
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"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
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);
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GType
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gst_smoothwave_get_type (void)
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{
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static GType smoothwave_type = 0;
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if (!smoothwave_type) {
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static const GTypeInfo smoothwave_info = {
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sizeof (GstSmoothWaveClass),
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gst_smoothwave_base_init,
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NULL,
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(GClassInitFunc) gst_smoothwave_class_init,
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NULL,
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NULL,
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sizeof (GstSmoothWave),
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0,
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(GInstanceInitFunc) gst_smoothwave_init,
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};
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smoothwave_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstSmoothWave",
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&smoothwave_info, 0);
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}
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return smoothwave_type;
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}
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static void
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gst_smoothwave_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, &gst_smoothwave_details);
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}
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static void
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gst_smoothwave_class_init (GstSmoothWaveClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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gobject_class = (GObjectClass *) klass;
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element_class = (GstElementClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->dispose = gst_smoothwave_dispose;
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element_class->change_state = gst_sw_change_state;
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_template));
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}
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static void
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gst_smoothwave_init (GstSmoothWave * smoothwave)
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{
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int i;
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smoothwave->sinkpad =
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gst_pad_new_from_static_template (&sink_template, "sink");
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smoothwave->srcpad = gst_pad_new_from_static_template (&src_template, "src");
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gst_element_add_pad (GST_ELEMENT (smoothwave), smoothwave->sinkpad);
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gst_pad_set_chain_function (smoothwave->sinkpad, gst_smoothwave_chain);
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gst_pad_set_link_function (smoothwave->sinkpad, gst_sw_sinklink);
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gst_element_add_pad (GST_ELEMENT (smoothwave), smoothwave->srcpad);
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gst_pad_set_link_function (smoothwave->srcpad, gst_sw_srclink);
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GST_OBJECT_FLAG_SET (smoothwave, GST_ELEMENT_EVENT_AWARE);
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smoothwave->adapter = gst_adapter_new ();
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smoothwave->width = 512;
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smoothwave->height = 256;
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#define SPLIT_PT 96
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/* Fade in blue up to the split point */
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for (i = 0; i < SPLIT_PT; i++)
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smoothwave->palette[i] = (255 * i / SPLIT_PT);
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/* After the split point, fade out blue and fade in red */
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for (; i < 256; i++) {
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gint val = (i - SPLIT_PT) * 255 / (255 - SPLIT_PT);
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smoothwave->palette[i] = (255 - val) | (val << 16);
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}
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smoothwave->imagebuffer = g_malloc (smoothwave->width * smoothwave->height);
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memset (smoothwave->imagebuffer, 0, smoothwave->width * smoothwave->height);
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smoothwave->fps = 0;
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smoothwave->sample_rate = 0;
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smoothwave->audio_basetime = GST_CLOCK_TIME_NONE;
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smoothwave->samples_consumed = 0;
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}
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inline guchar *
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draw_line (guchar * cur_pos, gint diff_y, gint stride)
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{
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gint j;
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if (diff_y > 0) {
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for (j = diff_y; j > 0; j--) {
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cur_pos += stride;
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*cur_pos = 0xff;
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}
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} else if (diff_y < 0) {
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for (j = diff_y; j < 0; j++) {
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cur_pos -= stride;
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*cur_pos = 0xff;
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}
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} else {
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*cur_pos = 0xff;
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}
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return cur_pos;
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}
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static void
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gst_smoothwave_dispose (GObject * object)
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{
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GstSmoothWave *sw = GST_SMOOTHWAVE (object);
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if (sw->adapter != NULL) {
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g_object_unref (sw->adapter);
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sw->adapter = NULL;
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static GstPadLinkReturn
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gst_sw_sinklink (GstPad * pad, const GstCaps * caps)
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{
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GstSmoothWave *sw = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
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GstStructure *structure;
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g_return_val_if_fail (sw != NULL, GST_PAD_LINK_REFUSED);
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structure = gst_caps_get_structure (caps, 0);
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if (!gst_structure_get_int (structure, "channels", &sw->channels) ||
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!gst_structure_get_int (structure, "rate", &sw->sample_rate))
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return GST_PAD_LINK_REFUSED;
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return GST_PAD_LINK_OK;
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}
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static GstPadLinkReturn
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gst_sw_srclink (GstPad * pad, const GstCaps * caps)
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{
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GstSmoothWave *sw = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
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GstStructure *structure;
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g_return_val_if_fail (sw != NULL, GST_PAD_LINK_REFUSED);
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structure = gst_caps_get_structure (caps, 0);
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if (!gst_structure_get_int (structure, "width", &sw->width) ||
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!gst_structure_get_int (structure, "height", &sw->height) ||
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!gst_structure_get_double (structure, "framerate", &sw->fps))
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return GST_PAD_LINK_REFUSED;
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return GST_PAD_LINK_OK;
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}
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static void
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gst_smoothwave_chain (GstPad * pad, GstData * _data)
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{
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GstBuffer *buf = GST_BUFFER (_data);
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GstSmoothWave *smoothwave;
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guint32 bytesperread;
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gint samples_per_frame;
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g_return_if_fail (pad != NULL);
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g_return_if_fail (GST_IS_PAD (pad));
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g_return_if_fail (buf != NULL);
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smoothwave = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
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if (GST_IS_EVENT (_data)) {
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GstEvent *event = GST_EVENT (_data);
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_DISCONTINUOUS:
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{
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gint64 value = 0;
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gst_event_discont_get_value (event, GST_FORMAT_TIME, &value);
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gst_adapter_clear (smoothwave->adapter);
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smoothwave->audio_basetime = value;
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smoothwave->samples_consumed = 0;
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}
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default:
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gst_pad_event_default (pad, event);
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break;
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}
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return;
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}
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if (!GST_PAD_IS_USABLE (smoothwave->srcpad)) {
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gst_buffer_unref (buf);
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return;
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}
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if (smoothwave->audio_basetime == GST_CLOCK_TIME_NONE)
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smoothwave->audio_basetime = GST_BUFFER_TIMESTAMP (buf);
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if (smoothwave->audio_basetime == GST_CLOCK_TIME_NONE)
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smoothwave->audio_basetime = 0;
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bytesperread = smoothwave->width * smoothwave->channels * sizeof (gint16);
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samples_per_frame = smoothwave->sample_rate / smoothwave->fps;
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gst_adapter_push (smoothwave->adapter, buf);
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while (gst_adapter_available (smoothwave->adapter) > MAX (bytesperread,
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samples_per_frame * smoothwave->channels * sizeof (gint16))) {
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guint32 *ptr;
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gint i;
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gint qheight;
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const gint16 *samples =
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(const guint16 *) gst_adapter_peek (smoothwave->adapter, bytesperread);
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gint stride = smoothwave->width;
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/* First draw the new waveform */
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if (smoothwave->channels == 2) {
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guchar *cur_pos[2];
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gint prev_y[2];
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qheight = smoothwave->height / 4;
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prev_y[0] = (gint32) (*samples) * qheight / 32768;
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samples++;
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prev_y[1] = (gint32) (*samples) * qheight / 32768;
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samples++;
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cur_pos[0] = smoothwave->imagebuffer + ((prev_y[0] + qheight) * stride);
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cur_pos[1] =
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smoothwave->imagebuffer + ((prev_y[1] +
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(3 * smoothwave->height / 4)) * stride);
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*(cur_pos[0]) = 0xff;
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*(cur_pos[1]) = 0xff;
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for (i = 1; i < smoothwave->width; i++) {
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gint diff_y = (gint) (*samples) * qheight / 32768 - prev_y[0];
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samples++;
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cur_pos[0] = draw_line (cur_pos[0], diff_y, stride);
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cur_pos[0]++;
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prev_y[0] += diff_y;
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diff_y = (gint) (*samples) * qheight / 32768 - prev_y[1];
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samples++;
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cur_pos[1] = draw_line (cur_pos[1], diff_y, stride);
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cur_pos[1]++;
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prev_y[1] += diff_y;
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}
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} else {
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qheight = smoothwave->height / 2;
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guchar *cur_pos;
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gint prev_y;
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prev_y = (gint32) (*samples) * qheight / 32768;
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samples++;
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cur_pos = smoothwave->imagebuffer + ((prev_y + qheight) * stride);
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*cur_pos = 0xff;
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for (i = 1; i < smoothwave->width; i++) {
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gint diff_y = (gint) (*samples) * qheight / 32768 - prev_y;
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samples++;
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cur_pos = draw_line (cur_pos, diff_y, stride);
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cur_pos++;
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prev_y += diff_y;
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}
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}
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/* Now fade stuff out */
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ptr = (guint32 *) smoothwave->imagebuffer;
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for (i = 0; i < (smoothwave->width * smoothwave->height) / 4; i++) {
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if (*ptr)
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*ptr -= ((*ptr & 0xf0f0f0f0ul) >> 4) + ((*ptr & 0xe0e0e0e0ul) >> 5);
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ptr++;
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}
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{
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guint32 *out;
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guchar *in;
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GstBuffer *bufout;
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bufout =
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gst_buffer_new_and_alloc (smoothwave->width * smoothwave->height * 4);
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GST_BUFFER_TIMESTAMP (bufout) =
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smoothwave->audio_basetime +
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(GST_SECOND * smoothwave->samples_consumed / smoothwave->sample_rate);
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GST_BUFFER_DURATION (bufout) = GST_SECOND / smoothwave->fps;
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out = (guint32 *) GST_BUFFER_DATA (bufout);
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in = smoothwave->imagebuffer;
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for (i = 0; i < (smoothwave->width * smoothwave->height); i++) {
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*out++ = smoothwave->palette[*in++]; // t | (t << 8) | (t << 16) | (t << 24);
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}
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gst_pad_push (smoothwave->srcpad, GST_DATA (bufout));
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}
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smoothwave->samples_consumed += samples_per_frame;
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gst_adapter_flush (smoothwave->adapter,
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samples_per_frame * smoothwave->channels * sizeof (gint16));
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}
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}
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static GstStateChangeReturn
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gst_sw_change_state (GstElement * element, GstStateChange transition)
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{
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GstSmoothWave *sw = GST_SMOOTHWAVE (element);
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switch (transition) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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break;
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case GST_STATE_CHANGE_READY_TO_NULL:
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break;
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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sw->audio_basetime = GST_CLOCK_TIME_NONE;
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gst_adapter_clear (sw->adapter);
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break;
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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|
sw->channels = 0;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
if (!gst_library_load ("gstbytestream"))
|
|
return FALSE;
|
|
|
|
if (!gst_element_register (plugin, "smoothwave", GST_RANK_NONE,
|
|
GST_TYPE_SMOOTHWAVE))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"smoothwave",
|
|
"Fading greyscale waveform display",
|
|
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|