mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 02:31:03 +00:00
Bring synaesthesia to next century.
Do proper size negotiation. Change engine API to allow resizes. Small cleanups elsewhere.
This commit is contained in:
Stefan Kost
parent
d798fa10c9
commit
8ebd13a681
4 changed files with 131 additions and 105 deletions
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@ -38,7 +38,6 @@
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#include "gstsynaesthesia.h"
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/* elementfactory information */
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static const GstElementDetails gst_synaesthesia_details =
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GST_ELEMENT_DETAILS ("Synaesthesia",
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@ -79,7 +78,7 @@ static GstFlowReturn gst_synaesthesia_chain (GstPad * pad, GstBuffer * buffer);
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static GstStateChangeReturn
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gst_synaesthesia_change_state (GstElement * element, GstStateChange transition);
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static GstCaps *gst_synaesthesia_src_getcaps (GstPad * pad);
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static gboolean gst_synaesthesia_src_negotiate (GstSynaesthesia * synaesthesia);
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static gboolean gst_synaesthesia_src_setcaps (GstPad * pad, GstCaps * caps);
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static gboolean gst_synaesthesia_sink_setcaps (GstPad * pad, GstCaps * caps);
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@ -157,8 +156,6 @@ gst_synaesthesia_init (GstSynaesthesia * synaesthesia)
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synaesthesia->srcpad =
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gst_pad_new_from_static_template (&gst_synaesthesia_src_template, "src");
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gst_pad_set_getcaps_function (synaesthesia->srcpad,
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GST_DEBUG_FUNCPTR (gst_synaesthesia_src_getcaps));
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gst_pad_set_setcaps_function (synaesthesia->srcpad,
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GST_DEBUG_FUNCPTR (gst_synaesthesia_src_setcaps));
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gst_element_add_pad (GST_ELEMENT (synaesthesia), synaesthesia->srcpad);
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@ -166,8 +163,8 @@ gst_synaesthesia_init (GstSynaesthesia * synaesthesia)
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synaesthesia->adapter = gst_adapter_new ();
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/* reset the initial video state */
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synaesthesia->width = SYNAES_WIDTH;
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synaesthesia->height = SYNAES_HEIGHT;
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synaesthesia->width = 320;
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synaesthesia->height = 200;
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synaesthesia->fps_n = 25; /* desired frame rate */
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synaesthesia->fps_d = 1;
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synaesthesia->frame_duration = -1;
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@ -178,10 +175,6 @@ gst_synaesthesia_init (GstSynaesthesia * synaesthesia)
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synaesthesia->next_ts = GST_CLOCK_TIME_NONE;
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/* FIXME: the size is currently ignored by the engine. It should
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* not be, and also there should be a way to change the size later.
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* We also need API to negotiate the spf (samples_per_frame)
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* we can supply. */
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synaesthesia->si =
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synaesthesia_new (synaesthesia->width, synaesthesia->height);
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}
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@ -265,33 +258,52 @@ wrong_rate:
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}
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}
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static GstCaps *
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gst_synaesthesia_src_getcaps (GstPad * pad)
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static gboolean
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gst_synaesthesia_src_negotiate (GstSynaesthesia * synaesthesia)
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{
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GstSynaesthesia *synaesthesia;
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GstCaps *caps;
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const GstCaps *templcaps;
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gint i;
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GstCaps *othercaps, *target, *intersect;
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GstStructure *structure;
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const GstCaps *templ;
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synaesthesia = GST_SYNAESTHESIA (gst_pad_get_parent (pad));
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templcaps = gst_pad_get_pad_template_caps (pad);
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caps = gst_caps_copy (templcaps);
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templ = gst_pad_get_pad_template_caps (synaesthesia->srcpad);
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for (i = 0; i < gst_caps_get_size (caps); i++) {
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GstStructure *structure = gst_caps_get_structure (caps, i);
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GST_DEBUG_OBJECT (synaesthesia, "performing negotiation");
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gst_structure_set (structure,
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"width", G_TYPE_INT, synaesthesia->width,
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"height", G_TYPE_INT, synaesthesia->height,
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"framerate", GST_TYPE_FRACTION, synaesthesia->fps_n,
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synaesthesia->fps_d, NULL);
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/* see what the peer can do */
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othercaps = gst_pad_peer_get_caps (synaesthesia->srcpad);
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if (othercaps) {
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intersect = gst_caps_intersect (othercaps, templ);
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gst_caps_unref (othercaps);
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if (gst_caps_is_empty (intersect))
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goto no_format;
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target = gst_caps_copy_nth (intersect, 0);
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gst_caps_unref (intersect);
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} else {
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target = gst_caps_ref ((GstCaps *) templ);
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}
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gst_object_unref (synaesthesia);
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structure = gst_caps_get_structure (target, 0);
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gst_structure_fixate_field_nearest_int (structure, "width",
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synaesthesia->width);
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gst_structure_fixate_field_nearest_int (structure, "height",
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synaesthesia->height);
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gst_structure_fixate_field_nearest_fraction (structure, "framerate",
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synaesthesia->fps_n, synaesthesia->fps_d);
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GST_DEBUG ("final caps are %" GST_PTR_FORMAT, caps);
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GST_DEBUG ("final caps are %" GST_PTR_FORMAT, target);
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return caps;
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gst_pad_set_caps (synaesthesia->srcpad, target);
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gst_caps_unref (target);
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return TRUE;
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no_format:
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{
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gst_caps_unref (intersect);
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return FALSE;
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}
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}
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static gboolean
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@ -312,23 +324,22 @@ gst_synaesthesia_src_setcaps (GstPad * pad, GstCaps * caps)
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goto missing_caps_details;
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}
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if ((w != SYNAES_WIDTH) || (h != SYNAES_HEIGHT))
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goto wrong_resolution;
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synaesthesia->width = w;
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synaesthesia->height = h;
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synaesthesia->fps_n = num;
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synaesthesia->fps_d = denom;
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synaesthesia_resize (synaesthesia->si, synaesthesia->width,
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synaesthesia->height);
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synaesthesia->frame_duration = gst_util_uint64_scale_int (GST_SECOND,
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synaesthesia->fps_d, synaesthesia->fps_n);
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synaesthesia->spf = gst_util_uint64_scale_int (synaesthesia->rate,
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synaesthesia->fps_d, synaesthesia->fps_n);
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/* FIXME: the size is currently ignored by the engine. see comment above */
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synaesthesia_close (synaesthesia->si);
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synaesthesia->si =
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synaesthesia_new (synaesthesia->width, synaesthesia->height);
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GST_DEBUG_OBJECT (synaesthesia, "dimension %dx%d, framerate %d/%d, spf %d",
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synaesthesia->width, synaesthesia->height,
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synaesthesia->fps_n, synaesthesia->fps_d, synaesthesia->spf);
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done:
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gst_object_unref (synaesthesia);
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@ -341,14 +352,6 @@ missing_caps_details:
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res = FALSE;
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goto done;
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}
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wrong_resolution:
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{
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GST_WARNING_OBJECT (synaesthesia,
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"unsupported resolution: %d x %d (wanted %d x %d)", w, h, SYNAES_WIDTH,
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SYNAES_HEIGHT);
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res = FALSE;
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goto done;
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}
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}
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static GstFlowReturn
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@ -360,7 +363,7 @@ gst_synaesthesia_chain (GstPad * pad, GstBuffer * buffer)
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synaesthesia = GST_SYNAESTHESIA (gst_pad_get_parent (pad));
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GST_DEBUG ("chainfunc called");
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GST_LOG ("chainfunc called");
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/* resync on DISCONT */
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if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT)) {
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@ -369,16 +372,8 @@ gst_synaesthesia_chain (GstPad * pad, GstBuffer * buffer)
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}
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if (GST_PAD_CAPS (synaesthesia->srcpad) == NULL) {
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GstCaps *target;
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GST_DEBUG ("fixating");
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if ((target = gst_synaesthesia_src_getcaps (synaesthesia->srcpad))) {
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gst_pad_set_caps (synaesthesia->srcpad, target);
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gst_caps_unref (target);
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} else {
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GST_DEBUG ("no caps on srcpad");
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if (!gst_synaesthesia_src_negotiate (synaesthesia))
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return GST_FLOW_NOT_NEGOTIATED;
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}
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}
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/* Match timestamps from the incoming audio */
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@ -388,15 +383,11 @@ gst_synaesthesia_chain (GstPad * pad, GstBuffer * buffer)
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gst_adapter_push (synaesthesia->adapter, buffer);
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/* this is what we want */
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bytesperread = SYNAES_SAMPLES * synaesthesia->channels * sizeof (gint16);
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/* FIXME: what about:
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bytesperread = MAX (SYNAES_SAMPLES, synaesthesia->spf) * synaesthesia->channels * sizeof (gint16);
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*/
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bytesperread = MAX (FFT_BUFFER_SIZE, synaesthesia->spf) * synaesthesia->channels * sizeof (gint16);
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/* this is what we have */
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avail = gst_adapter_available (synaesthesia->adapter);
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while (avail >
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MAX (bytesperread,
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synaesthesia->spf * synaesthesia->channels * sizeof (gint16))) {
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while (avail > bytesperread) {
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const guint16 *data =
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(const guint16 *) gst_adapter_peek (synaesthesia->adapter,
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bytesperread);
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@ -405,7 +396,7 @@ gst_synaesthesia_chain (GstPad * pad, GstBuffer * buffer)
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guint i;
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/* deinterleave */
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for (i = 0; i < SYNAES_SAMPLES; i++) {
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for (i = 0; i < FFT_BUFFER_SIZE; i++) {
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synaesthesia->datain[0][i] = *data++;
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synaesthesia->datain[1][i] = *data++;
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}
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@ -29,17 +29,11 @@
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#include "synaescope.h"
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G_BEGIN_DECLS
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#define SYNAES_SAMPLES 512
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#define SYNAES_WIDTH 320
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#define SYNAES_HEIGHT 200
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#define GST_TYPE_SYNAESTHESIA (gst_synaesthesia_get_type())
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#define GST_SYNAESTHESIA(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SYNAESTHESIA,GstSynaesthesia))
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#define GST_SYNAESTHESIA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SYNAESTHESIA,GstSynaesthesiaClass))
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#define GST_IS_SYNAESTHESIA(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SYNAESTHESIA))
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#define GST_IS_SYNAESTHESIA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SYNAESTHESIA))
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typedef struct _GstSynaesthesia GstSynaesthesia;
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typedef struct _GstSynaesthesiaClass GstSynaesthesiaClass;
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@ -59,7 +53,7 @@ struct _GstSynaesthesia
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guint bps; /* bytes per sample */
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guint spf; /* samples per video frame */
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gint16 datain[2][SYNAES_SAMPLES];
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gint16 datain[2][FFT_BUFFER_SIZE];
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/* video state */
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gint fps_n, fps_d;
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@ -83,5 +77,4 @@ struct _GstSynaesthesiaClass
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GType gst_synaesthesia_get_type (void);
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G_END_DECLS
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#endif /* __GST_SYNAESTHESIA_H__ */
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@ -47,11 +47,6 @@
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#define SCOPE_BG_GREEN 0
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#define SCOPE_BG_BLUE 0
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#define FFT_BUFFER_SIZE_LOG 9
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#define FFT_BUFFER_SIZE (1 << FFT_BUFFER_SIZE_LOG)
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#define syn_width 320
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#define syn_height 200
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#define brightMin 200
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#define brightMax 2000
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#define brightDec 10
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@ -65,10 +60,14 @@
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/* Instance data */
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struct syn_instance
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{
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/* options */
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unsigned int resx, resy;
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int autobrightness; /* Whether to use automatic brightness adjust */
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unsigned int brightFactor;
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unsigned char output[syn_width * syn_height * 2];
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guint32 display[syn_width * syn_height];
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/* data */
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unsigned char *output;
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guint32 *display;
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gint16 pcmt_l[FFT_BUFFER_SIZE];
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gint16 pcmt_r[FFT_BUFFER_SIZE];
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gint16 pcm_l[FFT_BUFFER_SIZE];
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@ -92,14 +91,14 @@ static void synaes_fft (double *x, double *y);
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static void synaescope_coreGo (syn_instance * si);
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static inline void
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addPixel (unsigned char *output, int x, int y, int br1, int br2)
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addPixel (syn_instance * si, int x, int y, int br1, int br2)
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{
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unsigned char *p;
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if (x < 0 || x >= syn_width || y < 0 || y >= syn_height)
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if (G_UNLIKELY (x < 0 || x >= si->resx || y < 0 || y >= si->resy))
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return;
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p = output + x * 2 + y * syn_width * 2;
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p = si->output + x * 2 + y * si->resx * 2;
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if (p[0] < 255 - br1)
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p[0] += br1;
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else
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@ -161,7 +160,7 @@ synaescope_coreGo (syn_instance * si)
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/* Asger Alstrupt's optimized 32 bit fade */
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/* (alstrup@diku.dk) */
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ptr = (guint32 *) si->output;
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end = (guint32 *) (si->output + syn_width * syn_height * 2);
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end = (guint32 *) (si->output + si->resx * si->resy * 2);
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do {
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/*Bytewize version was: *(ptr++) -= *ptr+(*ptr>>1)>>4; */
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if (*ptr) {
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@ -181,22 +180,22 @@ synaescope_coreGo (syn_instance * si)
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ptr++;
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} while (ptr < end);
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heightFactor = FFT_BUFFER_SIZE / 2 / syn_height + 1;
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heightFactor = FFT_BUFFER_SIZE / 2 / si->resy + 1;
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actualHeight = FFT_BUFFER_SIZE / 2 / heightFactor;
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heightAdd = (syn_height + actualHeight) >> 1;
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heightAdd = (si->resy + actualHeight) >> 1;
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/* Correct for window size */
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brightFactor2 = (si->brightFactor / 65536.0 / FFT_BUFFER_SIZE) *
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sqrt (actualHeight * syn_width / (320.0 * 200.0));
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sqrt (actualHeight * si->resx / (320.0 * 200.0));
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brtot = 0;
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for (i = 1; i < FFT_BUFFER_SIZE / 2; i++) {
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/*int h = (int)( corr_r[i]*280 / (corr_l[i]+corr_r[i]+0.0001)+20 ); */
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if (si->corr_l[i] > 0 || si->corr_r[i] > 0) {
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int h =
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(int) (si->corr_r[i] * syn_width / (si->corr_l[i] + si->corr_r[i]));
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(int) (si->corr_r[i] * si->resx / (si->corr_l[i] + si->corr_r[i]));
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/* int h = (int)( syn_width - 1 ); */
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/* int h = (int)( si->resx - 1 ); */
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int br1, br2, br =
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(int) ((si->corr_l[i] + si->corr_r[i]) * i * brightFactor2);
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int px = h, py = heightAdd - i / heightFactor;
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@ -212,19 +211,19 @@ synaescope_coreGo (syn_instance * si)
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br2 = 0;
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else if (br2 > 255)
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br2 = 255;
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/*unsigned char *p = output+ h*2+(164-((i<<8)>>FFT_BUFFER_SIZE_LOG))*(syn_width*2); */
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/*unsigned char *p = output+ h*2+(164-((i<<8)>>FFT_BUFFER_SIZE_LOG))*(si->resx*2); */
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if (px < 30 || py < 30 || px > syn_width - 30 || py > syn_height - 30) {
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addPixel (si->output, px, py, br1, br2);
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if (px < 30 || py < 30 || px > si->resx - 30 || py > si->resy - 30) {
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addPixel (si, px, py, br1, br2);
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for (j = 1; br1 > 0 || br2 > 0;
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j++, br1 = scaleDown[br1], br2 = scaleDown[br2]) {
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addPixel (si->output, px + j, py, br1, br2);
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addPixel (si->output, px, py + j, br1, br2);
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addPixel (si->output, px - j, py, br1, br2);
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addPixel (si->output, px, py - j, br1, br2);
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addPixel (si, px + j, py, br1, br2);
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addPixel (si, px, py + j, br1, br2);
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addPixel (si, px - j, py, br1, br2);
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addPixel (si, px, py - j, br1, br2);
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}
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} else {
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unsigned char *p = si->output + px * 2 + py * syn_width * 2, *p1 =
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unsigned char *p = si->output + px * 2 + py * si->resx * 2, *p1 =
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p, *p2 = p, *p3 = p, *p4 = p;
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addPixelFast (p, br1, br2);
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for (; br1 > 0 || br2 > 0; br1 = scaleDown[br1], br2 = scaleDown[br2]) {
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@ -232,9 +231,9 @@ synaescope_coreGo (syn_instance * si)
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addPixelFast (p1, br1, br2);
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p2 -= 2;
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addPixelFast (p2, br1, br2);
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p3 += syn_width * 2;
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p3 += si->resx * 2;
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addPixelFast (p3, br1, br2);
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p4 -= syn_width * 2;
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p4 -= si->resx * 2;
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addPixelFast (p4, br1, br2);
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}
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}
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@ -274,7 +273,7 @@ synaescope32 (syn_instance * si)
|
|||
synaescope_coreGo (si);
|
||||
|
||||
outptr = si->output;
|
||||
for (i = 0; i < syn_width * syn_height; i++) {
|
||||
for (i = 0; i < si->resx * si->resy; i++) {
|
||||
si->display[i] = colEq[(outptr[0] >> 4) + (outptr[1] & 0xf0)];
|
||||
outptr += 2;
|
||||
}
|
||||
|
|
@ -326,7 +325,7 @@ synaes_fft (double *x, double *y)
|
|||
}
|
||||
|
||||
static void
|
||||
synaescope_set_data (syn_instance * si, gint16 data[2][512])
|
||||
synaescope_set_data (syn_instance * si, gint16 data[2][FFT_BUFFER_SIZE])
|
||||
{
|
||||
int i;
|
||||
gint16 *newset_l = si->pcmt_l;
|
||||
|
|
@ -340,7 +339,7 @@ synaescope_set_data (syn_instance * si, gint16 data[2][512])
|
|||
|
||||
|
||||
guint32 *
|
||||
synaesthesia_update (syn_instance * si, gint16 data[2][512])
|
||||
synaesthesia_update (syn_instance * si, gint16 data[2][FFT_BUFFER_SIZE])
|
||||
{
|
||||
synaescope_set_data (si, data);
|
||||
synaescope32 (si);
|
||||
|
|
@ -390,8 +389,38 @@ synaesthesia_init ()
|
|||
inited = 1;
|
||||
}
|
||||
|
||||
gboolean
|
||||
synaesthesia_resize (syn_instance * si, guint resx, guint resy)
|
||||
{
|
||||
unsigned char *output = NULL;
|
||||
guint32 *display = NULL;
|
||||
|
||||
/* FIXME: FFT_BUFFER_SIZE is reated to resy, right now we get black borders on
|
||||
* top and below
|
||||
*/
|
||||
|
||||
output = g_try_new (unsigned char, 2 * resx * resy);
|
||||
display = g_try_new (guint32, resx * resy);
|
||||
if (!output || !display)
|
||||
goto Error;
|
||||
|
||||
g_free (si->output);
|
||||
g_free (si->display);
|
||||
|
||||
si->resx = resx;
|
||||
si->resy = resy;
|
||||
si->output = output;
|
||||
si->display = display;
|
||||
return TRUE;
|
||||
|
||||
Error:
|
||||
g_free (output);
|
||||
g_free (display);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
syn_instance *
|
||||
synaesthesia_new (guint32 resx, guint32 resy)
|
||||
synaesthesia_new (guint resx, guint resy)
|
||||
{
|
||||
syn_instance *si;
|
||||
|
||||
|
|
@ -399,11 +428,14 @@ synaesthesia_new (guint32 resx, guint32 resy)
|
|||
if (si == NULL)
|
||||
return NULL;
|
||||
|
||||
if (!synaesthesia_resize (si, resx, resy)) {
|
||||
g_free (si);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
si->autobrightness = 1; /* Whether to use automatic brightness adjust */
|
||||
si->brightFactor = 400;
|
||||
|
||||
/* FIXME: Make the width and height configurable? */
|
||||
|
||||
return si;
|
||||
}
|
||||
|
||||
|
|
@ -412,5 +444,8 @@ synaesthesia_close (syn_instance * si)
|
|||
{
|
||||
g_return_if_fail (si != NULL);
|
||||
|
||||
g_free (si->output);
|
||||
g_free (si->display);
|
||||
|
||||
g_free (si);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -23,11 +23,18 @@
|
|||
|
||||
#include <glib.h>
|
||||
|
||||
/* FIXME: we should set this automatically based on height */
|
||||
#define FFT_BUFFER_SIZE_LOG 10
|
||||
#define FFT_BUFFER_SIZE (1 << FFT_BUFFER_SIZE_LOG)
|
||||
|
||||
typedef struct syn_instance syn_instance;
|
||||
|
||||
void synaesthesia_init ();
|
||||
syn_instance *synaesthesia_new (guint32 resx, guint32 resy);
|
||||
void synaesthesia_close (syn_instance *si);
|
||||
guint32 * synaesthesia_update (syn_instance *si, gint16 data [2][512]);
|
||||
syn_instance *synaesthesia_new (guint resx, guint resy);
|
||||
void synaesthesia_close (syn_instance * si);
|
||||
|
||||
gboolean synaesthesia_resize (syn_instance * si, guint resx, guint resy);
|
||||
guint32 *synaesthesia_update (syn_instance * si,
|
||||
gint16 data[2][FFT_BUFFER_SIZE]);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in a new issue