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authorJan Schmidt <thaytan@mad.scientist.com>2004-11-12 17:37:49 +0000
committerJan Schmidt <thaytan@mad.scientist.com>2004-11-12 17:37:49 +0000
commit352cb6fef9ba3d73a3376244498e01498be68d43 (patch)
tree797516d8b1f8e2caf871b6ebbadbb9bf3bb98373 /gst/smoothwave/gstsmoothwave.c
parentbf61de8fe09a4f2c0d1109bc509ea8e4759fe222 (diff)
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Update libvisual to 0.1.7. Link in the debug handling to gstreamer
Original commit message from CVS: * configure.ac: * ext/libvisual/visual.c: (gst_visual_get_type), (libvisual_log_handler), (gst_visual_getcaps), (gst_visual_srclink), (gst_visual_change_state), (make_valid_name), (plugin_init): Update libvisual to 0.1.7. Link in the debug handling to gstreamer * ext/smoothwave/Makefile.am: * ext/smoothwave/demo-osssrc.c: (main): * ext/smoothwave/gstsmoothwave.c: (gst_smoothwave_class_init), (gst_smoothwave_init), (gst_smoothwave_dispose), (gst_sw_sinklink), (gst_sw_srclink), (gst_smoothwave_chain), (gst_sw_change_state), (plugin_init): * ext/smoothwave/gstsmoothwave.h: Make gstsmoothwave a working element in the 20th century. * gst/chart/gstchart.c: (gst_chart_init), (gst_chart_srcconnect): Fix incorrect link function
Diffstat (limited to 'gst/smoothwave/gstsmoothwave.c')
-rw-r--r--gst/smoothwave/gstsmoothwave.c380
1 files changed, 231 insertions, 149 deletions
diff --git a/gst/smoothwave/gstsmoothwave.c b/gst/smoothwave/gstsmoothwave.c
index 7f1dc9cd..4fd998fd 100644
--- a/gst/smoothwave/gstsmoothwave.c
+++ b/gst/smoothwave/gstsmoothwave.c
@@ -23,6 +23,10 @@
#endif
#include <string.h>
+#include <gst/gst.h>
+#include <gst/video/video.h>
+#include <gst/audio/audio.h>
+
#include "gstsmoothwave.h"
static GstElementDetails gst_smoothwave_details =
@@ -39,29 +43,58 @@ enum
LAST_SIGNAL
};
-enum
-{
- ARG_0,
- ARG_WIDTH,
- ARG_HEIGHT,
- ARG_WIDGET
-};
-
static void gst_smoothwave_base_init (gpointer g_class);
static void gst_smoothwave_class_init (GstSmoothWaveClass * klass);
static void gst_smoothwave_init (GstSmoothWave * smoothwave);
-
-static void gst_smoothwave_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_smoothwave_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
+static void gst_smoothwave_dispose (GObject * object);
+static GstElementStateReturn gst_sw_change_state (GstElement * element);
static void gst_smoothwave_chain (GstPad * pad, GstData * _data);
+static GstPadLinkReturn gst_sw_sinklink (GstPad * pad, const GstCaps * caps);
+static GstPadLinkReturn gst_sw_srclink (GstPad * pad, const GstCaps * caps);
static GstElementClass *parent_class = NULL;
/*static guint gst_smoothwave_signals[LAST_SIGNAL] = { 0 }; */
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-raw-rgb, "
+ "bpp = (int) 32, "
+ "depth = (int) 24, "
+ "endianness = (int) BIG_ENDIAN, "
+ "red_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
+ "green_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
+ "blue_mask = (int) " GST_VIDEO_BYTE4_MASK_32 ", "
+ "width = (int)512, "
+ "height = (int)256, " "framerate = " GST_VIDEO_FPS_RANGE)
+ );
+#else
+static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-raw-rgb, "
+ "bpp = (int) 32, "
+ "depth = (int) 24, "
+ "endianness = (int) BIG_ENDIAN, "
+ "red_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
+ "green_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
+ "blue_mask = (int) " GST_VIDEO_BYTE1_MASK_32 ", "
+ "width = (int)512, "
+ "height = (int)256, " "framerate = " GST_VIDEO_FPS_RANGE)
+ );
+#endif
+
+static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-raw-int, "
+ "rate = (int) [ 1, MAX ], "
+ "channels = (int) [ 1, 2 ], "
+ "endianness = (int) BYTE_ORDER, "
+ "width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
+ );
GType
gst_smoothwave_get_type (void)
@@ -100,56 +133,111 @@ static void
gst_smoothwave_class_init (GstSmoothWaveClass * klass)
{
GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
+ GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
+ element_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+ gobject_class->dispose = gst_smoothwave_dispose;
+ element_class->change_state = gst_sw_change_state;
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH, g_param_spec_int ("width", "width", "width", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HEIGHT, g_param_spec_int ("height", "height", "height", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDGET, g_param_spec_object ("widget", "widget", "widget", GTK_TYPE_WIDGET, G_PARAM_READABLE)); /* CHECKME! */
-
- gobject_class->set_property = gst_smoothwave_set_property;
- gobject_class->get_property = gst_smoothwave_get_property;
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_template));
}
static void
gst_smoothwave_init (GstSmoothWave * smoothwave)
{
int i;
- guint32 palette[256];
- smoothwave->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
+ smoothwave->sinkpad =
+ gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
+ "sink");
+ smoothwave->srcpad =
+ gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
+ "src");
gst_element_add_pad (GST_ELEMENT (smoothwave), smoothwave->sinkpad);
gst_pad_set_chain_function (smoothwave->sinkpad, gst_smoothwave_chain);
- smoothwave->srcpad = gst_pad_new ("src", GST_PAD_SRC);
+ gst_pad_set_link_function (smoothwave->sinkpad, gst_sw_sinklink);
+
gst_element_add_pad (GST_ELEMENT (smoothwave), smoothwave->srcpad);
+ gst_pad_set_link_function (smoothwave->srcpad, gst_sw_srclink);
+
+ GST_FLAG_SET (smoothwave, GST_ELEMENT_EVENT_AWARE);
+
+ smoothwave->adapter = gst_adapter_new ();
-/* smoothwave->meta = NULL; */
smoothwave->width = 512;
smoothwave->height = 256;
- gdk_rgb_init ();
-/* gtk_widget_set_default_colormap (gdk_rgb_get_cmap()); */
-/* gtk_widget_set_default_visual (gdk_rgb_get_visual()); */
+#define SPLIT_PT 96
-/* GST_DEBUG ("creating palette"); */
- for (i = 0; i < 256; i++)
- palette[i] = (i << 16) || (i << 8);
-/* GST_DEBUG ("creating cmap"); */
- smoothwave->cmap = gdk_rgb_cmap_new (palette, 256);
-/* GST_DEBUG ("created cmap"); */
-/* gtk_widget_set_default_colormap (smoothwave->cmap); */
+ /* Fade in blue up to the split point */
+ for (i = 0; i < SPLIT_PT; i++)
+ smoothwave->palette[i] = (255 * i / SPLIT_PT);
- smoothwave->image = gtk_drawing_area_new ();
- gtk_drawing_area_size (GTK_DRAWING_AREA (smoothwave->image),
- smoothwave->width, smoothwave->height);
- gtk_widget_show (smoothwave->image);
+ /* After the split point, fade out blue and fade in red */
+ for (; i < 256; i++) {
+ gint val = (i - SPLIT_PT) * 255 / (255 - SPLIT_PT);
+
+ smoothwave->palette[i] = (255 - val) | (val << 16);
+ }
smoothwave->imagebuffer = g_malloc (smoothwave->width * smoothwave->height);
memset (smoothwave->imagebuffer, 0, smoothwave->width * smoothwave->height);
+
+ smoothwave->fps = 0;
+ smoothwave->sample_rate = 0;
+ smoothwave->audio_basetime = GST_CLOCK_TIME_NONE;
+ smoothwave->samples_consumed = 0;
+}
+
+static void
+gst_smoothwave_dispose (GObject * object)
+{
+ GstSmoothWave *sw = GST_SMOOTHWAVE (object);
+
+ if (sw->adapter != NULL) {
+ g_object_unref (sw->adapter);
+ sw->adapter = NULL;
+ }
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static GstPadLinkReturn
+gst_sw_sinklink (GstPad * pad, const GstCaps * caps)
+{
+ GstSmoothWave *sw = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
+ GstStructure *structure;
+
+ g_return_val_if_fail (sw != NULL, GST_PAD_LINK_REFUSED);
+
+ structure = gst_caps_get_structure (caps, 0);
+ if (!gst_structure_get_int (structure, "channels", &sw->channels) ||
+ !gst_structure_get_int (structure, "rate", &sw->sample_rate))
+ return GST_PAD_LINK_REFUSED;
+
+ return GST_PAD_LINK_OK;
+}
+
+static GstPadLinkReturn
+gst_sw_srclink (GstPad * pad, const GstCaps * caps)
+{
+ GstSmoothWave *sw = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
+ GstStructure *structure;
+
+ g_return_val_if_fail (sw != NULL, GST_PAD_LINK_REFUSED);
+
+ structure = gst_caps_get_structure (caps, 0);
+ if (!gst_structure_get_int (structure, "width", &sw->width) ||
+ !gst_structure_get_int (structure, "height", &sw->height) ||
+ !gst_structure_get_double (structure, "framerate", &sw->fps))
+ return GST_PAD_LINK_REFUSED;
+
+ return GST_PAD_LINK_OK;
}
static void
@@ -157,146 +245,140 @@ gst_smoothwave_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstSmoothWave *smoothwave;
- gint16 *samples;
- gint samplecount, i;
- register guint32 *ptr;
+ guint32 bytesperread;
+ gint samples_per_frame;
gint qheight;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
-/* g_return_if_fail(GST_IS_BUFFER(buf)); */
smoothwave = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
- /* first deal with audio metadata */
-#if 0
- if (buf->meta) {
- if (smoothwave->meta != NULL) {
- /* FIXME: need to unref the old metadata so it goes away */
+ if (GST_IS_EVENT (_data)) {
+ GstEvent *event = GST_EVENT (_data);
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_DISCONTINUOUS:
+ {
+ gint64 value = 0;
+
+ gst_event_discont_get_value (event, GST_FORMAT_TIME, &value);
+ gst_adapter_clear (smoothwave->adapter);
+ smoothwave->audio_basetime = value;
+ smoothwave->samples_consumed = 0;
+ }
+ default:
+ gst_pad_event_default (pad, event);
+ break;
}
- /* we just make a copy of the pointer */
- smoothwave->meta = (MetaAudioRaw *) (buf->meta);
- /* FIXME: now we have to ref the metadata so it doesn't go away */
+ return;
}
-#endif
-/* g_return_if_fail(smoothwave->meta != NULL); */
-
- samples = (gint16 *) GST_BUFFER_DATA (buf);
-/* samplecount = buf->datasize / (smoothwave->meta->channels * sizeof(gint16)); */
- samplecount = GST_BUFFER_SIZE (buf) / (2 * sizeof (gint16));
-
- qheight = smoothwave->height / 4;
-
-/* GST_DEBUG ("traversing %d",smoothwave->width); */
- for (i = 0; i < MAX (smoothwave->width, samplecount); i++) {
- gint16 y1 = (gint32) (samples[i * 2] * qheight) / 32768 + qheight;
- gint16 y2 = (gint32) (samples[(i * 2) + 1] * qheight) / 32768 +
- (qheight * 3);
- smoothwave->imagebuffer[y1 * smoothwave->width + i] = 0xff;
- smoothwave->imagebuffer[y2 * smoothwave->width + i] = 0xff;
-/* smoothwave->imagebuffer[i+(smoothwave->width*5)] = i; */
+ if (!GST_PAD_IS_USABLE (smoothwave->srcpad)) {
+ gst_buffer_unref (buf);
+ return;
}
-
- ptr = (guint32 *) smoothwave->imagebuffer;
- for (i = 0; i < (smoothwave->width * smoothwave->height) / 4; i++) {
- if (*ptr) {
- *ptr -= ((*ptr & 0xf0f0f0f0ul) >> 4) + ((*ptr & 0xe0e0e0e0ul) >> 5);
- ptr++;
+ if (smoothwave->audio_basetime == GST_CLOCK_TIME_NONE)
+ smoothwave->audio_basetime = GST_BUFFER_TIMESTAMP (buf);
+ if (smoothwave->audio_basetime == GST_CLOCK_TIME_NONE)
+ smoothwave->audio_basetime = 0;
+
+ bytesperread = smoothwave->width * smoothwave->channels * sizeof (gint16);
+ samples_per_frame = smoothwave->sample_rate / smoothwave->fps;
+
+ gst_adapter_push (smoothwave->adapter, buf);
+ while (gst_adapter_available (smoothwave->adapter) > MAX (bytesperread,
+ samples_per_frame * smoothwave->channels * sizeof (gint16))) {
+ const gint16 *samples =
+ (const guint16 *) gst_adapter_peek (smoothwave->adapter, bytesperread);
+ register guint32 *ptr;
+ gint i;
+
+ /* First draw the new waveform */
+ if (smoothwave->channels == 2) {
+ qheight = smoothwave->height / 4;
+ for (i = 0; i < smoothwave->width; i++) {
+ gint16 y1 = (gint32) (samples[i * 2] * qheight) / 32768 + qheight;
+ gint16 y2 = (gint32) (samples[(i * 2) + 1] * qheight) / 32768 +
+ (qheight + smoothwave->height / 2);
+ smoothwave->imagebuffer[y1 * smoothwave->width + i] = 0xff;
+ smoothwave->imagebuffer[y2 * smoothwave->width + i] = 0xff;
+ }
} else {
- ptr++;
- }
- }
+ qheight = smoothwave->height / 2;
+ for (i = 0; i < smoothwave->width; i++) {
+ gint16 y1 = (gint32) (samples[i] * qheight) / 32768 + qheight;
-/* GST_DEBUG ("drawing"); */
-/* GST_DEBUG ("gdk_draw_indexed_image(%p,%p,%d,%d,%d,%d,%s,%p,%d,%p);",
- smoothwave->image->window,
- smoothwave->image->style->fg_gc[GTK_STATE_NORMAL],
- 0,0,smoothwave->width,smoothwave->height,
- "GDK_RGB_DITHER_NORMAL",
- smoothwave->imagebuffer,smoothwave->width,
- smoothwave->cmap);*/
-/* gdk_draw_indexed_image(smoothwave->image->window,
- smoothwave->image->style->fg_gc[GTK_STATE_NORMAL],
- 0,0,smoothwave->width,smoothwave->height,
- GDK_RGB_DITHER_NONE,
- smoothwave->imagebuffer,smoothwave->width,
- smoothwave->cmap);*/
- gdk_draw_gray_image (smoothwave->image->window,
- smoothwave->image->style->fg_gc[GTK_STATE_NORMAL],
- 0, 0, smoothwave->width, smoothwave->height,
- GDK_RGB_DITHER_NORMAL, smoothwave->imagebuffer, smoothwave->width);
-
-/* gst_trace_add_entry(NULL,0,buf,"smoothwave: calculated smoothwave"); */
-
- gst_buffer_unref (buf);
-}
+ smoothwave->imagebuffer[y1 * smoothwave->width + i] = 0xff;
+ }
+ }
-static void
-gst_smoothwave_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstSmoothWave *smoothwave;
+ /* Now fade stuff out */
+ ptr = (guint32 *) smoothwave->imagebuffer;
+ for (i = 0; i < (smoothwave->width * smoothwave->height) / 4; i++) {
+ if (*ptr)
+ *ptr -= ((*ptr & 0xf0f0f0f0ul) >> 4) + ((*ptr & 0xe0e0e0e0ul) >> 5);
+ ptr++;
+ }
- /* it's not null if we got it, but it might not be ours */
- g_return_if_fail (GST_IS_SMOOTHWAVE (object));
- smoothwave = GST_SMOOTHWAVE (object);
-
- switch (prop_id) {
- case ARG_WIDTH:
- smoothwave->width = g_value_get_int (value);
- gtk_drawing_area_size (GTK_DRAWING_AREA (smoothwave->image),
- smoothwave->width, smoothwave->height);
- gtk_widget_set_usize (GTK_WIDGET (smoothwave->image),
- smoothwave->width, smoothwave->height);
- break;
- case ARG_HEIGHT:
- smoothwave->height = g_value_get_int (value);
- gtk_drawing_area_size (GTK_DRAWING_AREA (smoothwave->image),
- smoothwave->width, smoothwave->height);
- gtk_widget_set_usize (GTK_WIDGET (smoothwave->image),
- smoothwave->width, smoothwave->height);
- break;
- default:
- break;
+ {
+ guint32 *out;
+ guchar *in;
+ GstBuffer *bufout;
+
+ bufout =
+ gst_buffer_new_and_alloc (smoothwave->width * smoothwave->height * 4);
+
+ GST_BUFFER_TIMESTAMP (bufout) =
+ smoothwave->audio_basetime +
+ (GST_SECOND * smoothwave->samples_consumed / smoothwave->sample_rate);
+ GST_BUFFER_DURATION (bufout) = GST_SECOND / smoothwave->fps;
+ out = (guint32 *) GST_BUFFER_DATA (bufout);
+ in = smoothwave->imagebuffer;
+
+ for (i = 0; i < (smoothwave->width * smoothwave->height); i++) {
+ // guchar t = *in++;
+ *out++ = smoothwave->palette[*in++]; // t | (t << 8) | (t << 16) | (t << 24);
+ }
+ gst_pad_push (smoothwave->srcpad, GST_DATA (bufout));
+ }
+ smoothwave->samples_consumed += samples_per_frame;
+ gst_adapter_flush (smoothwave->adapter,
+ samples_per_frame * smoothwave->channels * sizeof (gint16));
}
}
-static void
-gst_smoothwave_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
+static GstElementStateReturn
+gst_sw_change_state (GstElement * element)
{
- GstSmoothWave *smoothwave;
+ GstSmoothWave *sw = GST_SMOOTHWAVE (element);
- /* it's not null if we got it, but it might not be ours */
- smoothwave = GST_SMOOTHWAVE (object);
-
- switch (prop_id) {
- case ARG_WIDTH:{
- g_value_set_int (value, smoothwave->width);
+ switch (GST_STATE_TRANSITION (element)) {
+ case GST_STATE_NULL_TO_READY:
break;
- }
- case ARG_HEIGHT:{
- g_value_set_int (value, smoothwave->height);
+ case GST_STATE_READY_TO_NULL:
break;
- }
- case ARG_WIDGET:{
- g_value_set_object (value, smoothwave->image);
+ case GST_STATE_READY_TO_PAUSED:
+ sw->audio_basetime = GST_CLOCK_TIME_NONE;
+ gst_adapter_clear (sw->adapter);
break;
- }
- default:{
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ case GST_STATE_PAUSED_TO_READY:
+ sw->channels = 0;
+ break;
+ default:
break;
- }
}
-}
-
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+}
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;