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ext/libvisual/visual.c: Finish fixing up libvisual plugin so that it runs.
Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_dispose), (gst_visual_getcaps), (gst_visual_src_setcaps), (gst_visual_sink_setcaps), (get_buffer), (gst_visual_chain), (gst_visual_change_state): Finish fixing up libvisual plugin so that it runs.
This commit is contained in:
Jan Schmidt
parent
896950ce84
commit
8e296da9dd
2 changed files with 154 additions and 37 deletions
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@ -1,3 +1,11 @@
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2005-09-07 Jan Schmidt <thaytan@mad.scientist.com>
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* ext/libvisual/visual.c: (gst_visual_dispose),
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(gst_visual_getcaps), (gst_visual_src_setcaps),
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(gst_visual_sink_setcaps), (get_buffer), (gst_visual_chain),
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(gst_visual_change_state):
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Finish fixing up libvisual plugin so that it runs.
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2005-09-07 Stefan Kost <ensonic@users.sf.net>
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* ext/vorbis/vorbisenc.c:
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@ -54,7 +54,7 @@ struct _GstVisual
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VisActor *actor;
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/* audio/video state */
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gint rate;
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gint rate; /* Input samplerate */
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gdouble fps;
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gint width;
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gint height;
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@ -106,8 +106,8 @@ static GstStateChangeReturn gst_visual_change_state (GstElement * element,
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GstStateChange transition);
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static GstFlowReturn gst_visual_chain (GstPad * pad, GstBuffer * buffer);
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static GstPadLinkReturn gst_visual_sink_setcaps (GstPad * pad, GstCaps * caps);
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static GstPadLinkReturn gst_visual_src_setcaps (GstPad * pad, GstCaps * caps);
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static gboolean gst_visual_sink_setcaps (GstPad * pad, GstCaps * caps);
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static gboolean gst_visual_src_setcaps (GstPad * pad, GstCaps * caps);
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static GstCaps *gst_visual_getcaps (GstPad * pad);
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static void libvisual_log_handler (const char *message, const char *funcname,
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void *priv);
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@ -223,6 +223,15 @@ gst_visual_dispose (GObject * object)
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visual->adapter = NULL;
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}
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if (visual->actor) {
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visual_object_unref (VISUAL_OBJECT (visual->actor));
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visual->actor = NULL;
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}
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if (visual->video) {
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visual_object_unref (VISUAL_OBJECT (visual->video));
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visual->video = NULL;
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}
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GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
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}
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@ -247,6 +256,9 @@ gst_visual_getcaps (GstPad * pad)
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return ret;
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}
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GST_DEBUG_OBJECT (visual, "libvisual plugin supports depths %u (0x%04x)",
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depths, depths);
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/* if (depths & VISUAL_VIDEO_DEPTH_32BIT) Always supports 32bit output */
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gst_caps_append (ret, gst_caps_from_string (GST_VIDEO_CAPS_xRGB_HOST_ENDIAN));
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if (depths & VISUAL_VIDEO_DEPTH_24BIT) {
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@ -260,10 +272,11 @@ gst_visual_getcaps (GstPad * pad)
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gst_caps_append (ret, gst_caps_from_string (GST_VIDEO_CAPS_RGB_16));
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}
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GST_DEBUG_OBJECT (visual, "returning caps %" GST_PTR_FORMAT, ret);
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return ret;
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}
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static GstPadLinkReturn
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static gboolean
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gst_visual_src_setcaps (GstPad * pad, GstCaps * caps)
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{
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GstVisual *visual = GST_VISUAL (gst_pad_get_parent (pad));
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@ -273,27 +286,23 @@ gst_visual_src_setcaps (GstPad * pad, GstCaps * caps)
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structure = gst_caps_get_structure (caps, 0);
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if (!gst_structure_get_int (structure, "width", &visual->width))
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return GST_PAD_LINK_REFUSED;
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return FALSE;
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if (!gst_structure_get_int (structure, "height", &visual->height))
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return GST_PAD_LINK_REFUSED;
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return FALSE;
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if (!gst_structure_get_double (structure, "framerate", &visual->fps))
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return GST_PAD_LINK_REFUSED;
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return FALSE;
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if (!gst_structure_get_int (structure, "bpp", &depth))
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return GST_PAD_LINK_REFUSED;
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return FALSE;
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if (visual->video)
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visual_object_unref (VISUAL_OBJECT (visual->video));
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visual->video = visual_video_new ();
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visual_actor_set_video (visual->actor, visual->video);
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visual_video_set_depth (visual->video,
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visual_video_depth_enum_from_value (depth));
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visual_video_set_dimension (visual->video, visual->width, visual->height);
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visual_actor_video_negotiate (visual->actor, 0, FALSE, FALSE);
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return GST_PAD_LINK_OK;
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return TRUE;
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}
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static GstPadLinkReturn
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static gboolean
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gst_visual_sink_setcaps (GstPad * pad, GstCaps * caps)
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{
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GstVisual *visual = GST_VISUAL (gst_pad_get_parent (pad));
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@ -303,44 +312,137 @@ gst_visual_sink_setcaps (GstPad * pad, GstCaps * caps)
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gst_structure_get_int (structure, "rate", &visual->rate);
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return GST_PAD_LINK_OK;
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return TRUE;
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}
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static GstFlowReturn
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get_buffer (GstVisual * visual, GstBuffer ** outbuf)
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{
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GstFlowReturn ret;
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if (GST_PAD_CAPS (visual->srcpad) == NULL) {
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gint width, height, bpp;
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GstStructure *s;
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GstCaps *caps;
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/* No output caps current set up. Try and pick some */
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caps = gst_pad_get_allowed_caps (visual->srcpad);
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if (gst_caps_is_empty (caps)) {
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gst_caps_unref (caps);
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return GST_FLOW_NOT_NEGOTIATED;
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}
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if (!gst_caps_is_fixed (caps)) {
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/* OK, not fixed, fixate the width and height */
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caps = gst_caps_make_writable (caps);
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gst_caps_truncate (caps);
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s = gst_caps_get_structure (caps, 0);
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gst_caps_structure_fixate_field_nearest_int (s, "width", 320);
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gst_caps_structure_fixate_field_nearest_int (s, "height", 240);
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gst_caps_structure_fixate_field_nearest_double (s, "framerate", 30.0);
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gst_pad_fixate_caps (visual->srcpad, caps);
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} else
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s = gst_caps_get_structure (caps, 0);
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GST_DEBUG_OBJECT (visual,
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"Trying to alloc buffer with caps: %" GST_PTR_FORMAT, caps);
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if (!gst_structure_get_int (s, "width", &width) ||
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!gst_structure_get_int (s, "height", &height) ||
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!gst_structure_get_int (s, "bpp", &bpp)) {
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ret = FALSE;
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} else {
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ret = gst_pad_alloc_buffer (visual->srcpad, GST_BUFFER_OFFSET_NONE,
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height * GST_ROUND_UP_4 (width) * bpp, caps, outbuf);
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}
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if (GST_PAD_CAPS (visual->srcpad) == NULL)
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gst_pad_set_caps (visual->srcpad, caps);
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gst_caps_unref (caps);
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} else {
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ret = gst_pad_alloc_buffer (visual->srcpad, GST_BUFFER_OFFSET_NONE,
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visual->video->height * GST_ROUND_UP_4 (visual->video->width) *
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visual->video->bpp, GST_PAD_CAPS (visual->srcpad), outbuf);
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}
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return GST_FLOW_OK;
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}
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static GstFlowReturn
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gst_visual_chain (GstPad * pad, GstBuffer * buffer)
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{
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GstBuffer *outbuf;
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GstBuffer *outbuf = NULL;
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guint i;
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GstVisual *visual = GST_VISUAL (gst_pad_get_parent (pad));
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GstFlowReturn ret = GST_FLOW_OK;
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guint spf;
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/* If we don't have an output format yet, preallocate a buffer to try and
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* set one */
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if (GST_PAD_CAPS (visual->srcpad) == NULL) {
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ret = get_buffer (visual, &outbuf);
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if (ret != GST_FLOW_OK) {
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gst_buffer_unref (buffer);
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return ret;
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}
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}
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/* spf = samples per frame */
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guint spf = visual->rate / visual->fps;
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spf = visual->rate / visual->fps;
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gst_adapter_push (visual->adapter, buffer);
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while (gst_adapter_available (visual->adapter) > MAX (512, spf) * 4) {
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while (gst_adapter_available (visual->adapter) > MAX (512, spf) * 4 &&
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(ret == GST_FLOW_OK)) {
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/* Read 512 samples per channel */
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const guint16 *data =
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(const guint16 *) gst_adapter_peek (visual->adapter, 512);
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int ret;
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(const guint16 *) gst_adapter_peek (visual->adapter, 512 * 4);
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for (i = 0; i < 512; i++) {
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visual->audio.plugpcm[0][i] = *data++;
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visual->audio.plugpcm[1][i] = *data++;
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}
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ret = gst_pad_alloc_buffer (visual->srcpad, GST_BUFFER_OFFSET_NONE,
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visual->video->width * visual->video->width * visual->video->bpp,
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visual->srcpad->caps, &outbuf);
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if (outbuf == NULL) {
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ret = get_buffer (visual, &outbuf);
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if (ret != GST_FLOW_OK) {
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return ret;
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}
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}
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if (visual->video != NULL) {
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visual_video_set_buffer (visual->video, GST_BUFFER_DATA (outbuf));
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visual_audio_analyze (&visual->audio);
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visual_actor_run (visual->actor, &visual->audio);
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GST_BUFFER_TIMESTAMP (outbuf) = GST_SECOND * visual->count++ / visual->fps;
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/* FIXME: Match timestamps from the incoming audio */
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GST_BUFFER_TIMESTAMP (outbuf) =
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GST_SECOND * visual->count++ / visual->fps;
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GST_BUFFER_DURATION (outbuf) = GST_SECOND / visual->fps;
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gst_pad_push (visual->srcpad, outbuf);
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gst_adapter_flush (visual->adapter, spf * 4);
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ret = gst_pad_push (visual->srcpad, outbuf);
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outbuf = NULL;
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}
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/* Flush out the number of samples per frame * channels * sizeof (gint16) */
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/* Recompute spf in case caps changed */
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spf = visual->rate / visual->fps;
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GST_DEBUG_OBJECT (visual, "finished frame, flushing %u samples from input",
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spf);
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gst_adapter_flush (visual->adapter,
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MIN (gst_adapter_available (visual->adapter), spf * 4));
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}
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/* so we're on the safe side */
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if (visual->video)
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visual_video_set_buffer (visual->video, NULL);
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return GST_FLOW_OK;
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if (outbuf != NULL)
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gst_buffer_unref (outbuf);
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return ret;
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}
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static GstStateChangeReturn
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@ -353,7 +455,9 @@ gst_visual_change_state (GstElement * element, GstStateChange transition)
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visual->actor =
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visual_actor_new (GST_VISUAL_GET_CLASS (visual)->plugin->info->
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plugname);
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if (!visual->actor)
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visual->video = visual_video_new ();
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if (!visual->actor || !visual->video)
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return GST_STATE_CHANGE_FAILURE;
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if (visual_actor_realize (visual->actor) != 0) {
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@ -361,6 +465,7 @@ gst_visual_change_state (GstElement * element, GstStateChange transition)
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visual->actor = NULL;
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return GST_STATE_CHANGE_FAILURE;
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}
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visual_actor_set_video (visual->actor, visual->video);
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break;
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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gst_adapter_clear (visual->adapter);
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@ -373,8 +478,12 @@ gst_visual_change_state (GstElement * element, GstStateChange transition)
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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break;
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case GST_STATE_CHANGE_READY_TO_NULL:
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if (visual->actor)
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visual_object_unref (VISUAL_OBJECT (visual->actor));
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if (visual->video)
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visual_object_unref (VISUAL_OBJECT (visual->video));
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visual->actor = NULL;
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visual->video = NULL;
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break;
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default:
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break;
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