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sys/v4l/: Implement resizing... Hack. But that's why v4l is b0rked...
Original commit message from CVS: 2004-01-28 Ronald Bultje <rbultje@ronald.bitfreak.net> * sys/v4l/gstv4lsrc.c: (gst_v4lsrc_class_init), (gst_v4lsrc_init), (gst_v4lsrc_open), (gst_v4lsrc_close), (gst_v4lsrc_palette_to_caps), (gst_v4lsrc_srcconnect), (gst_v4lsrc_getcaps), (gst_v4lsrc_set_clock): * sys/v4l/gstv4lsrc.h: * sys/v4l/v4lsrc_calls.c: (gst_v4lsrc_capture_start), (gst_v4lsrc_grab_frame), (gst_v4lsrc_capture_stop): Implement resizing... Hack. But that's why v4l is b0rked...
This commit is contained in:
Ronald S. Bultje
parent
38fdf429c6
commit
a6b79b4f09
4 changed files with 100 additions and 40 deletions
11
ChangeLog
11
ChangeLog
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@ -1,3 +1,14 @@
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2004-01-28 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* sys/v4l/gstv4lsrc.c: (gst_v4lsrc_class_init), (gst_v4lsrc_init),
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(gst_v4lsrc_open), (gst_v4lsrc_close),
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(gst_v4lsrc_palette_to_caps), (gst_v4lsrc_srcconnect),
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(gst_v4lsrc_getcaps), (gst_v4lsrc_set_clock):
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* sys/v4l/gstv4lsrc.h:
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* sys/v4l/v4lsrc_calls.c: (gst_v4lsrc_capture_start),
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(gst_v4lsrc_grab_frame), (gst_v4lsrc_capture_stop):
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Implement resizing... Hack. But that's why v4l is b0rked...
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2004-01-28 Julien MOUTTE <julien@moutte.net>
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* sys/ximage/ximagesink.c: (gst_ximagesink_check_xshm_calls),
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@ -60,6 +60,12 @@ static void gst_v4lsrc_base_init (gpointer g_class);
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static void gst_v4lsrc_class_init (GstV4lSrcClass *klass);
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static void gst_v4lsrc_init (GstV4lSrc *v4lsrc);
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/* parent class virtual functions */
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static void gst_v4lsrc_open (GstElement *element,
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const gchar *device);
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static void gst_v4lsrc_close (GstElement *element,
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const gchar *device);
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/* pad/info functions */
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static gboolean gst_v4lsrc_src_convert (GstPad *pad,
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GstFormat src_format,
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@ -140,14 +146,17 @@ gst_v4lsrc_base_init (gpointer g_class)
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gst_element_class_add_pad_template (gstelement_class, src_template);
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}
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static void
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gst_v4lsrc_class_init (GstV4lSrcClass *klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstV4lElementClass *v4lelement_class;
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gobject_class = (GObjectClass*)klass;
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gstelement_class = (GstElementClass*)klass;
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v4lelement_class = (GstV4lElementClass *) klass;
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parent_class = g_type_class_ref(GST_TYPE_V4LELEMENT);
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@ -186,6 +195,9 @@ gst_v4lsrc_class_init (GstV4lSrcClass *klass)
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gstelement_class->change_state = gst_v4lsrc_change_state;
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gstelement_class->set_clock = gst_v4lsrc_set_clock;
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v4lelement_class->open = gst_v4lsrc_open;
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v4lelement_class->close = gst_v4lsrc_close;
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}
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@ -213,10 +225,53 @@ gst_v4lsrc_init (GstV4lSrc *v4lsrc)
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/* no clock */
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v4lsrc->clock = NULL;
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/* no colourspaces */
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v4lsrc->colourspaces = NULL;
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/* fps */
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v4lsrc->use_fixed_fps = TRUE;
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v4lsrc->is_capturing = FALSE;
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}
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static void
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gst_v4lsrc_open (GstElement *element,
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const gchar *device)
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{
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GstV4lSrc *v4lsrc = GST_V4LSRC (element);
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int palette[] = {
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VIDEO_PALETTE_YUV422,
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VIDEO_PALETTE_YUV420P,
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VIDEO_PALETTE_UYVY,
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VIDEO_PALETTE_YUV411P,
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VIDEO_PALETTE_YUV422P,
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VIDEO_PALETTE_YUV410P,
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VIDEO_PALETTE_YUV411,
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VIDEO_PALETTE_RGB555,
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VIDEO_PALETTE_RGB565,
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VIDEO_PALETTE_RGB24,
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VIDEO_PALETTE_RGB32,
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-1
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}, i;
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for (i = 0; palette[i] != -1; i++) {
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/* try palette out */
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if (!gst_v4lsrc_try_palette(v4lsrc, palette[i]))
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continue;
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v4lsrc->colourspaces = g_list_append (v4lsrc->colourspaces,
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GINT_TO_POINTER (palette[i]));
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}
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}
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static void
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gst_v4lsrc_close (GstElement *element,
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const gchar *device)
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{
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GstV4lSrc *v4lsrc = GST_V4LSRC (element);
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g_list_free (v4lsrc->colourspaces);
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v4lsrc->colourspaces = NULL;
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}
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static gfloat
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gst_v4lsrc_get_fps (GstV4lSrc *v4lsrc)
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@ -327,7 +382,7 @@ gst_v4lsrc_src_query (GstPad *pad,
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}
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static GstCaps *
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gst_v4lsrc_palette_to_caps (int palette)
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gst_v4lsrc_palette_to_caps (int palette)
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{
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guint32 fourcc;
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GstCaps *caps;
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@ -424,18 +479,22 @@ gst_v4lsrc_srcconnect (GstPad *pad, const GstCaps *vscapslist)
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gint bpp, depth, w, h, palette = -1;
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gdouble fps;
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GstStructure *structure;
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gboolean was_capturing;
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v4lsrc = GST_V4LSRC (gst_pad_get_parent (pad));
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was_capturing = v4lsrc->is_capturing;
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/* in case the buffers are active (which means that we already
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* did capsnego before and didn't clean up), clean up anyways */
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if (GST_V4L_IS_ACTIVE(GST_V4LELEMENT(v4lsrc)))
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{
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if (was_capturing) {
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if (!gst_v4lsrc_capture_stop(v4lsrc))
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return GST_PAD_LINK_REFUSED;
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}
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if (!gst_v4lsrc_capture_deinit(v4lsrc))
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return GST_PAD_LINK_REFUSED;
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}
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else if (!GST_V4L_IS_OPEN(GST_V4LELEMENT(v4lsrc)))
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{
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} else if (!GST_V4L_IS_OPEN(GST_V4LELEMENT(v4lsrc))) {
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return GST_PAD_LINK_DELAYED;
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}
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@ -450,9 +509,6 @@ gst_v4lsrc_srcconnect (GstPad *pad, const GstCaps *vscapslist)
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gst_structure_get_int (structure, "height", &h);
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gst_structure_get_double (structure, "framerate", &fps);
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if (fps != gst_v4lsrc_get_fps(v4lsrc))
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return GST_PAD_LINK_REFUSED;
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switch (fourcc)
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{
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case GST_MAKE_FOURCC('I','4','2','0'):
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@ -527,6 +583,11 @@ gst_v4lsrc_srcconnect (GstPad *pad, const GstCaps *vscapslist)
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if (!gst_v4lsrc_capture_init(v4lsrc))
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return GST_PAD_LINK_REFUSED;
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if (was_capturing) {
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if (!gst_v4lsrc_capture_start(v4lsrc))
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return GST_PAD_LINK_REFUSED;
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}
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return GST_PAD_LINK_OK;
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}
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@ -536,37 +597,21 @@ gst_v4lsrc_getcaps (GstPad *pad)
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{
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GstCaps *list;
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GstV4lSrc *v4lsrc = GST_V4LSRC(gst_pad_get_parent(pad));
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int palette[] = {
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VIDEO_PALETTE_YUV422,
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VIDEO_PALETTE_YUV420P,
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VIDEO_PALETTE_UYVY,
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VIDEO_PALETTE_YUV411P,
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VIDEO_PALETTE_YUV422P,
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VIDEO_PALETTE_YUV410P,
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VIDEO_PALETTE_YUV411,
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VIDEO_PALETTE_RGB555,
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VIDEO_PALETTE_RGB565,
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VIDEO_PALETTE_RGB24,
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VIDEO_PALETTE_RGB32,
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}, i;
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struct video_capability *vcap = &GST_V4LELEMENT(v4lsrc)->vcap;
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GList *item;
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if (!GST_V4L_IS_OPEN(GST_V4LELEMENT(v4lsrc))) {
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return gst_caps_new_any ();
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} else if (GST_V4L_IS_ACTIVE(GST_V4LELEMENT(v4lsrc))) {
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return gst_caps_copy(GST_PAD_CAPS(v4lsrc->srcpad));
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}
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list = gst_caps_new_empty();
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for (i = 0; i < 8; i++) {
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for (item = v4lsrc->colourspaces; item != NULL; item = item->next) {
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GstCaps *one;
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/* try palette out */
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if (!gst_v4lsrc_try_palette(v4lsrc, palette[i]))
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continue;
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one = gst_v4lsrc_palette_to_caps(palette[i]);
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if (!one) g_print ("Palette %d gave no caps\n", palette[i]);
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one = gst_v4lsrc_palette_to_caps(GPOINTER_TO_INT (item->data));
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if (!one)
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g_print ("Palette %d gave no caps\n",
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GPOINTER_TO_INT (item->data));
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gst_caps_set_simple (one,
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"width", GST_TYPE_INT_RANGE, vcap->minwidth, vcap->maxwidth,
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"height", GST_TYPE_INT_RANGE, vcap->minheight, vcap->maxheight,
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@ -840,4 +885,3 @@ gst_v4lsrc_set_clock (GstElement *element,
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{
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GST_V4LSRC(element)->clock = clock;
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}
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@ -38,6 +38,13 @@ G_BEGIN_DECLS
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typedef struct _GstV4lSrc GstV4lSrc;
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typedef struct _GstV4lSrcClass GstV4lSrcClass;
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enum {
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QUEUE_STATE_ERROR = -1,
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QUEUE_STATE_READY_FOR_QUEUE,
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QUEUE_STATE_QUEUED,
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QUEUE_STATE_SYNCED,
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};
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struct _GstV4lSrc {
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GstV4lElement v4lelement;
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@ -57,6 +64,7 @@ struct _GstV4lSrc {
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GCond *cond_queue_state;
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gint num_queued;
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gint sync_frame, queue_frame;
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gboolean is_capturing;
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/* True if we want to stop */
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gboolean quit;
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@ -75,6 +83,9 @@ struct _GstV4lSrc {
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/* how often are we going to use each frame? */
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gint *use_num_times;
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/* list of supported colourspaces (as integers) */
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GList *colourspaces;
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/* how are we going to push buffers? */
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gboolean use_fixed_fps;
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};
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@ -66,13 +66,6 @@ static const char *palette_name[] = {
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"YUV-4:1:0 (planar)" /* VIDEO_PALETTE_YUV410P */
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};
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enum {
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QUEUE_STATE_ERROR = -1,
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QUEUE_STATE_READY_FOR_QUEUE,
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QUEUE_STATE_QUEUED,
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QUEUE_STATE_SYNCED,
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};
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/******************************************************
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* gst_v4lsrc_queue_frame():
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* queue a frame for capturing
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@ -263,6 +256,7 @@ gst_v4lsrc_capture_start (GstV4lSrc *v4lsrc)
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}
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}
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v4lsrc->is_capturing = TRUE;
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g_mutex_unlock(v4lsrc->mutex_queue_state);
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return TRUE;
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@ -291,9 +285,8 @@ gst_v4lsrc_grab_frame (GstV4lSrc *v4lsrc, gint *num)
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while (v4lsrc->frame_queue_state[v4lsrc->queue_frame] !=
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QUEUE_STATE_READY_FOR_QUEUE &&
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!v4lsrc->quit) {
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GST_DEBUG (
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"Waiting for frames to become available (%d < %d)",
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v4lsrc->num_queued, MIN_BUFFERS_QUEUED);
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GST_DEBUG ("Waiting for frames to become available (%d < %d)",
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v4lsrc->num_queued, MIN_BUFFERS_QUEUED);
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g_cond_wait(v4lsrc->cond_queue_state,
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v4lsrc->mutex_queue_state);
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}
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@ -391,6 +384,7 @@ gst_v4lsrc_capture_stop (GstV4lSrc *v4lsrc)
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GST_V4L_CHECK_ACTIVE(GST_V4LELEMENT(v4lsrc));
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g_mutex_lock(v4lsrc->mutex_queue_state);
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v4lsrc->is_capturing = FALSE;
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/* make an optional pending wait stop */
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v4lsrc->quit = TRUE;
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