Пример #1
0
bool bitmap_resize(struct bitmap *img, HermesHandle hermes_h,
		HermesFormat *fmt, int nw, int nh)
{
	unsigned int state = 0;
	short bpp = bitmap_get_bpp( img );
	int stride = bitmap_get_rowstride( img );
	int err;

	if( img->resized != NULL ) {
		if( img->resized->width != nw || img->resized->height != nh ) {
			bitmap_destroy( img->resized );
			img->resized = NULL;
		} else {
			/* the bitmap is already resized */
			return(true);
		}
	}

	/* allocate the mem for resized bitmap */
	if (img->opaque == true) {
		state |= BITMAP_OPAQUE;
	}
	img->resized = bitmap_create_ex( nw, nh, bpp, nw*bpp, state, NULL );
	if( img->resized == NULL ) {
			printf("W: %d, H: %d, bpp: %d\n", nw, nh, bpp);
			assert(img->resized);
			return(false);
	}

	/* allocate an converter, only for resizing */
	err = Hermes_ConverterRequest( hermes_h,
			fmt,
			fmt
	);
	if( err == 0 ) {
		return(false);
	}

	err = Hermes_ConverterCopy( hermes_h,
		img->pixdata,
		0,			/* x src coord of top left in pixel coords */
		0,			/* y src coord of top left in pixel coords */
		bitmap_get_width( img ), bitmap_get_height( img ),
		stride, 	/* stride as bytes */
		img->resized->pixdata,
		0,			/* x dst coord of top left in pixel coords */
		0,			/* y dst coord of top left in pixel coords */
		nw, nh,
		bitmap_get_rowstride(img->resized) /* stride as bytes */
	);
	if( err == 0 ) {
		bitmap_destroy( img->resized );
		img->resized = NULL;
		return(false);
	}

	return(true);
}
static GstPadLinkReturn
gst_hermes_colorspace_link (GstPad * pad, const GstCaps * caps)
{
  GstHermesColorspace *space;
  GstPad *otherpad;
  GstStructure *structure;
  GstPadLinkReturn link_ret;
  int width, height;
  double fps;
  int i;

  space = GST_HERMES_COLORSPACE (gst_pad_get_parent (pad));
  otherpad = (pad == space->sinkpad) ? space->srcpad : space->sinkpad;

  link_ret = gst_pad_try_set_caps (otherpad, caps);
  if (link_ret == GST_PAD_LINK_OK) {
    space->passthru = TRUE;
    return link_ret;
  }

  structure = gst_caps_get_structure (caps, 0);

  for (i = 0; i < G_N_ELEMENTS (gst_hermes_colorspace_formats); i++) {
    GstCaps *icaps;
    GstCaps *fcaps;

    fcaps =
        gst_caps_copy (gst_static_caps_get (&gst_hermes_colorspace_formats
            [i].caps));

    icaps = gst_caps_intersect (caps, fcaps);
    if (!gst_caps_is_empty (icaps)) {
      break;
    }
    gst_caps_free (icaps);
  }
  if (i == G_N_ELEMENTS (gst_hermes_colorspace_formats)) {
    g_assert_not_reached ();
    return GST_PAD_LINK_REFUSED;
  }

  gst_structure_get_int (structure, "width", &width);
  gst_structure_get_int (structure, "height", &height);
  gst_structure_get_double (structure, "framerate", &fps);

  GST_INFO ("size: %dx%d", space->width, space->height);

  if (gst_pad_is_negotiated (otherpad)) {
    GstCaps *othercaps;

    othercaps = gst_caps_copy (gst_pad_get_negotiated_caps (otherpad));

    gst_caps_set_simple (othercaps,
        "width", G_TYPE_INT, width,
        "height", G_TYPE_INT, height, "framerate", G_TYPE_DOUBLE, fps, NULL);

    link_ret = gst_pad_try_set_caps (otherpad, othercaps);
    if (link_ret != GST_PAD_LINK_OK) {
      return link_ret;
    }
  }

  if (pad == space->srcpad) {
    space->src_format_index = i;
    gst_hermes_colorspace_structure_to_hermes_format (&space->src_format,
        structure);
  } else {
    space->sink_format_index = i;
    gst_hermes_colorspace_structure_to_hermes_format (&space->sink_format,
        structure);
  }

  space->sink_stride = width * (space->sink_format.bits / 8);
  space->src_stride = width * (space->src_format.bits / 8);
  space->sink_size = space->sink_stride * height;
  space->src_size = space->src_stride * height;
  space->width = width;
  space->height = height;
  space->fps = fps;

  if (gst_pad_is_negotiated (otherpad)) {
    if (!Hermes_ConverterRequest (space->h_handle, &space->sink_format,
            &space->src_format)) {
      g_warning ("Hermes: could not get converter\n");
      return GST_PAD_LINK_REFUSED;
    }
    g_print ("inited\n");
  }

  return GST_PAD_LINK_OK;
}
static gboolean
colorspace_setup_converter (GstHermesColorspace * space, GstCaps * from_caps,
    GstCaps * to_caps)
{
  guint32 from_space, to_space;
  GstStructure *from_struct;
  GstStructure *to_struct;

  g_return_val_if_fail (to_caps != NULL, FALSE);
  g_return_val_if_fail (from_caps != NULL, FALSE);

  from_struct = gst_caps_get_structure (from_caps, 0);
  to_struct = gst_caps_get_structure (to_caps, 0);

  from_space = GST_MAKE_FOURCC ('R', 'G', 'B', ' ');
  gst_structure_get_fourcc (from_struct, "format", &from_space);

  to_space = GST_MAKE_FOURCC ('R', 'G', 'B', ' ');
  gst_structure_get_fourcc (to_struct, "format", &to_space);

  GST_INFO ("set up converter for " GST_FOURCC_FORMAT
      " (%08x) to " GST_FOURCC_FORMAT " (%08x)",
      GST_FOURCC_ARGS (from_space), from_space,
      GST_FOURCC_ARGS (to_space), to_space);

  switch (from_space) {
    case GST_MAKE_FOURCC ('R', 'G', 'B', ' '):
    {
      gint from_bpp;

      gst_structure_get_int (from_struct, "bpp", &from_bpp);

      switch (to_space) {
        case GST_MAKE_FOURCC ('R', 'G', 'B', ' '):
#ifdef HAVE_HERMES
        {
          gint to_bpp;

          gst_structure_get_int (to_struct, "bpp", &to_bpp);

          gst_structure_get_int (from_struct, "red_mask", &space->source.r);
          gst_structure_get_int (from_struct, "green_mask", &space->source.g);
          gst_structure_get_int (from_struct, "blue_mask", &space->source.b);
          space->source.a = 0;
          space->srcbpp = space->source.bits = from_bpp;
          space->source.indexed = 0;
          space->source.has_colorkey = 0;

          GST_INFO ("source red mask   %08x", space->source.r);
          GST_INFO ("source green mask %08x", space->source.g);
          GST_INFO ("source blue mask  %08x", space->source.b);
          GST_INFO ("source bpp        %08x", space->srcbpp);

          gst_structure_get_int (to_struct, "red_mask", &space->dest.r);
          gst_structure_get_int (to_struct, "green_mask", &space->dest.g);
          gst_structure_get_int (to_struct, "blue_mask", &space->dest.b);
          space->dest.a = 0;
          space->destbpp = space->dest.bits = to_bpp;
          space->dest.indexed = 0;
          space->dest.has_colorkey = 0;

          GST_INFO ("dest red mask   %08x", space->dest.r);
          GST_INFO ("dest green mask %08x", space->dest.g);
          GST_INFO ("dest blue mask  %08x", space->dest.b);
          GST_INFO ("dest bpp        %08x", space->destbpp);

          if (!Hermes_ConverterRequest (space->h_handle, &space->source,
                  &space->dest)) {
            g_warning ("Hermes: could not get converter\n");
            return FALSE;
          }
          GST_INFO ("converter set up");
          space->type = GST_HERMES_COLORSPACE_HERMES;
          return TRUE;
        }
#else
          g_warning ("colorspace: compiled without hermes!");
          return FALSE;
#endif
        case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
          if (from_bpp == 32) {
            space->type = GST_HERMES_COLORSPACE_RGB32_YV12;
            space->destbpp = 12;
            return TRUE;
          }
        case GST_MAKE_FOURCC ('I', '4', '2', '0'):
          if (from_bpp == 32) {
            space->type = GST_HERMES_COLORSPACE_RGB32_I420;
            space->destbpp = 12;
            return TRUE;
          }
        case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
          GST_INFO ("colorspace: RGB to YUV with bpp %d not implemented!!",
              from_bpp);
          return FALSE;
      }
      break;
    }
    case GST_MAKE_FOURCC ('I', '4', '2', '0'):
      switch (to_space) {
        case GST_MAKE_FOURCC ('R', 'G', 'B', ' '):
          GST_INFO ("colorspace: YUV to RGB");

          gst_structure_get_int (to_struct, "bpp", &space->destbpp);
          space->converter =
              gst_hermes_colorspace_yuv2rgb_get_converter (from_caps, to_caps);
          space->type = GST_HERMES_COLORSPACE_YUV_RGB;
          return TRUE;
        case GST_MAKE_FOURCC ('I', '4', '2', '0'):
          space->type = GST_HERMES_COLORSPACE_NONE;
          space->destbpp = 12;
          return TRUE;
        case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
          space->type = GST_HERMES_COLORSPACE_420_SWAP;
          space->destbpp = 12;
          return TRUE;

      }
      break;
    case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
      switch (to_space) {
        case GST_MAKE_FOURCC ('I', '4', '2', '0'):
          space->type = GST_HERMES_COLORSPACE_YUY2_I420;
          space->destbpp = 12;
          return TRUE;
        case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
          space->type = GST_HERMES_COLORSPACE_NONE;
          space->destbpp = 16;
          return TRUE;
        case GST_MAKE_FOURCC ('R', 'G', 'B', ' '):
          GST_INFO ("colorspace: YUY2 to RGB not implemented!!");
          return FALSE;
      }
      break;
    case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
      switch (to_space) {
        case GST_MAKE_FOURCC ('R', 'G', 'B', ' '):
          GST_INFO ("colorspace: YV12 to RGB");

          gst_structure_get_int (to_struct, "bpp", &space->destbpp);
          space->converter =
              gst_hermes_colorspace_yuv2rgb_get_converter (from_caps, to_caps);
          space->type = GST_HERMES_COLORSPACE_YUV_RGB;
          return TRUE;
        case GST_MAKE_FOURCC ('I', '4', '2', '0'):
          space->type = GST_HERMES_COLORSPACE_420_SWAP;
          space->destbpp = 12;
          return TRUE;
        case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
          space->type = GST_HERMES_COLORSPACE_NONE;
          space->destbpp = 12;
          return TRUE;
      }
      break;
  }
  return FALSE;
}