mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-01 04:10:41 +00:00
video-converter: add support for src/dest regions
Add support for cropping the source and placing the converted image into a rectangle in the destination frame. Add an option to add a border and border color.
This commit is contained in:
Wim Taymans
parent
a16cd5d2a5
commit
ce2d4d40a1
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@ -62,10 +62,18 @@ struct _GstVideoConverter
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GstVideoInfo in_info;
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GstVideoInfo out_info;
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gint in_x;
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gint in_y;
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gint in_width;
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gint in_height;
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gint in_maxwidth;
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gint in_maxheight;
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gint out_x;
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gint out_y;
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gint out_width;
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gint out_height;
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gint out_maxwidth;
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gint out_maxheight;
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gint v_scale_width;
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gint in_bits;
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@ -85,6 +93,10 @@ struct _GstVideoConverter
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guint16 *errline;
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guint tmplines_idx;
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gboolean fill_border;
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guint16 *borderline;
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guint32 border_argb;
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GstVideoChromaResample *upsample;
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guint up_n_lines;
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gint up_offset;
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@ -265,17 +277,20 @@ alloc_tmplines (GstVideoConverter * convert, guint lines, gint width)
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convert->n_tmplines = lines;
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convert->tmplines = g_malloc (lines * sizeof (gpointer));
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for (i = 0; i < lines; i++)
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for (i = 0; i < lines; i++) {
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convert->tmplines[i] = g_malloc (sizeof (guint16) * (width + 8) * 4);
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if (convert->borderline)
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memcpy (convert->tmplines[i], convert->borderline, width * 8);
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}
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convert->tmplines_idx = 0;
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}
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static gpointer
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get_temp_line (GstVideoConverter * convert)
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get_temp_line (GstVideoConverter * convert, gint offset)
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{
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gpointer tmpline;
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tmpline = convert->tmplines[convert->tmplines_idx];
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tmpline = (guint32 *) convert->tmplines[convert->tmplines_idx] + offset;
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convert->tmplines_idx = (convert->tmplines_idx + 1) % convert->n_tmplines;
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return tmpline;
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@ -374,6 +389,33 @@ chain_pack (GstVideoConverter * convert, GstLineCacheNeedLineFunc need_line)
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return NULL;
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}
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static gint
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get_opt_int (GstVideoConverter * convert, const gchar * opt, gint def)
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{
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gint res;
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if (!gst_structure_get_int (convert->config, opt, &res))
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res = def;
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return res;
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}
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static guint
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get_opt_uint (GstVideoConverter * convert, const gchar * opt, guint def)
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{
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guint res;
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if (!gst_structure_get_uint (convert->config, opt, &res))
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res = def;
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return res;
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}
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static gboolean
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get_opt_bool (GstVideoConverter * convert, const gchar * opt, gboolean def)
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{
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gboolean res;
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if (!gst_structure_get_boolean (convert->config, opt, &res))
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res = def;
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return res;
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}
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/**
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* gst_video_converter_new:
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* @in_info: a #GstVideoInfo
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@ -410,17 +452,36 @@ gst_video_converter_new (GstVideoInfo * in_info, GstVideoInfo * out_info,
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convert->in_info = *in_info;
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convert->out_info = *out_info;
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convert->in_width = GST_VIDEO_INFO_WIDTH (in_info);
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convert->in_height = GST_VIDEO_INFO_HEIGHT (in_info);
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convert->out_width = GST_VIDEO_INFO_WIDTH (out_info);
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convert->out_height = GST_VIDEO_INFO_HEIGHT (out_info);
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/* default config */
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convert->config = gst_structure_new ("GstVideoConverter",
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"dither", GST_TYPE_VIDEO_DITHER_METHOD, GST_VIDEO_DITHER_NONE, NULL);
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if (config)
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gst_video_converter_set_config (convert, config);
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convert->in_maxwidth = GST_VIDEO_INFO_WIDTH (in_info);
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convert->in_maxheight = GST_VIDEO_INFO_HEIGHT (in_info);
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convert->out_maxwidth = GST_VIDEO_INFO_WIDTH (out_info);
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convert->out_maxheight = GST_VIDEO_INFO_HEIGHT (out_info);
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convert->in_x = get_opt_int (convert, GST_VIDEO_CONVERTER_OPT_SRC_X, 0);
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convert->in_y = get_opt_int (convert, GST_VIDEO_CONVERTER_OPT_SRC_Y, 0);
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convert->in_width = get_opt_int (convert,
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GST_VIDEO_CONVERTER_OPT_SRC_WIDTH, convert->in_maxwidth);
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convert->in_height = get_opt_int (convert,
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GST_VIDEO_CONVERTER_OPT_SRC_HEIGHT, convert->in_maxheight);
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convert->out_x = get_opt_int (convert, GST_VIDEO_CONVERTER_OPT_DEST_X, 0);
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convert->out_y = get_opt_int (convert, GST_VIDEO_CONVERTER_OPT_DEST_Y, 0);
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convert->out_width = get_opt_int (convert,
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GST_VIDEO_CONVERTER_OPT_DEST_WIDTH, convert->out_maxwidth);
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convert->out_height = get_opt_int (convert,
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GST_VIDEO_CONVERTER_OPT_DEST_HEIGHT, convert->out_maxheight);
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convert->fill_border = get_opt_bool (convert,
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GST_VIDEO_CONVERTER_OPT_FILL_BORDER, TRUE);
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convert->border_argb = get_opt_uint (convert,
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GST_VIDEO_CONVERTER_OPT_BORDER_ARGB, 0x00000000);
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if (video_converter_lookup_fastpath (convert))
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goto done;
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@ -486,8 +547,17 @@ gst_video_converter_new (GstVideoInfo * in_info, GstVideoInfo * out_info,
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need_line = chain_pack (convert, need_line);
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convert->lines = out_info->finfo->pack_lines;
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width = MAX (convert->in_width, convert->out_width);
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width = MAX (convert->in_maxwidth, convert->out_maxwidth);
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convert->errline = g_malloc0 (sizeof (guint16) * width * 4);
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if (convert->fill_border && (convert->out_height < convert->out_maxheight ||
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convert->out_width < convert->out_maxwidth)) {
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convert->borderline = g_malloc0 (sizeof (guint16) * width * 4);
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memset (convert->borderline, convert->border_argb, width * 8);
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} else {
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convert->borderline = NULL;
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}
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/* FIXME */
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alloc_tmplines (convert, 64, width);
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@ -552,6 +622,7 @@ gst_video_converter_free (GstVideoConverter * convert)
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g_free (convert->tmplines[i]);
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g_free (convert->tmplines);
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g_free (convert->errline);
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g_free (convert->borderline);
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if (convert->config)
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gst_structure_free (convert->config);
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@ -1087,32 +1158,36 @@ convert_to8 (gpointer line, gint width)
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line8[i] = line16[i] >> 8;
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}
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#define UNPACK_FRAME(frame,dest,line,width) \
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#define UNPACK_FRAME(frame,dest,line,x,width) \
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frame->info.finfo->unpack_func (frame->info.finfo, \
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(GST_VIDEO_FRAME_IS_INTERLACED (frame) ? \
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GST_VIDEO_PACK_FLAG_INTERLACED : \
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GST_VIDEO_PACK_FLAG_NONE), \
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dest, frame->data, frame->info.stride, 0, \
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dest, frame->data, frame->info.stride, x, \
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line, width)
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#define PACK_FRAME(frame,dest,line,width) \
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#define PACK_FRAME(frame,src,line,width) \
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frame->info.finfo->pack_func (frame->info.finfo, \
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(GST_VIDEO_FRAME_IS_INTERLACED (frame) ? \
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GST_VIDEO_PACK_FLAG_INTERLACED : \
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GST_VIDEO_PACK_FLAG_NONE), \
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dest, 0, frame->data, frame->info.stride, \
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src, 0, frame->data, frame->info.stride, \
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frame->info.chroma_site, line, width);
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static gboolean
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do_unpack_lines (GstLineCache * cache, gint line, GstVideoConverter * convert)
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{
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gpointer tmpline;
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guint cline;;
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guint cline;
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cline = CLAMP (line, 0, convert->in_height - 1);
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cline = CLAMP (line + convert->in_y, 0, convert->in_maxheight);
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/* FIXME we should be able to use the input line without unpack if the
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* format is already suitable. When we do this, we should be careful not to
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* do in-place modifications. */
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GST_DEBUG ("unpack line %d (%u)", line, cline);
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tmpline = get_temp_line (convert);
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UNPACK_FRAME (convert->src, tmpline, cline, convert->in_width);
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tmpline = get_temp_line (convert, convert->out_x);
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UNPACK_FRAME (convert->src, tmpline, cline, convert->in_x, convert->in_width);
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gst_line_cache_add_line (cache, line, tmpline);
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@ -1150,7 +1225,7 @@ do_hscale_lines (GstLineCache * cache, gint line, GstVideoConverter * convert)
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lines = gst_line_cache_get_lines (convert->hscale_lines, line, 1);
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destline = get_temp_line (convert);
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destline = get_temp_line (convert, convert->out_x);
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GST_DEBUG ("hresample line %d", line);
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gst_video_scaler_horizontal (convert->h_scaler, GST_VIDEO_FORMAT_AYUV,
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@ -1170,8 +1245,10 @@ do_vscale_lines (GstLineCache * cache, gint line, GstVideoConverter * convert)
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gst_video_scaler_get_coeff (convert->v_scaler, line, &sline, &n_lines);
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lines = gst_line_cache_get_lines (convert->vscale_lines, sline, n_lines);
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destline = get_temp_line (convert);
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destline = get_temp_line (convert, convert->out_x);
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/* FIXME with 1-tap (nearest), we can simply copy the input line. We need
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* to be careful to not do in-place modifications later */
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GST_DEBUG ("vresample line %d %d-%d", line, sline, sline + n_lines - 1);
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gst_video_scaler_vertical (convert->v_scaler, GST_VIDEO_FORMAT_AYUV,
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lines, destline, line, convert->v_scale_width);
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@ -1248,26 +1325,58 @@ video_converter_generic (GstVideoConverter * convert, const GstVideoFrame * src,
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GstVideoFrame * dest)
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{
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gint i;
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gint out_width, out_height;
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gint out_maxwidth, out_maxheight;
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gint out_x, out_y, out_height;
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gint pack_lines;
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gint r_border, out_width;
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out_width = convert->out_width;
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out_height = convert->out_height;
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out_maxwidth = convert->out_maxwidth;
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out_maxheight = convert->out_maxheight;
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out_x = convert->out_x;
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out_y = convert->out_y;
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r_border = out_x + out_width;
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convert->src = src;
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convert->dest = dest;
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pack_lines = convert->lines; /* only 1 for now */
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if (convert->borderline) {
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/* FIXME we should try to avoid PACK_FRAME */
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for (i = 0; i < out_y; i++)
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PACK_FRAME (dest, convert->borderline, i, out_maxwidth);
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}
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for (i = 0; i < out_height; i += pack_lines) {
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gpointer *lines;
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guint32 *l;
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/* load the lines needed to pack */
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lines = gst_line_cache_get_lines (convert->pack_lines, i, pack_lines);
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/* take away the border */
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l = ((guint32 *) lines[0]) - out_x;
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if (convert->borderline) {
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/* FIXME this can be optimized if we make separate temp lines with
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* border for the output lines */
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memcpy (l, convert->borderline, out_x * 4);
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memcpy (l + r_border, convert->borderline, (out_maxwidth - r_border) * 4);
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}
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/* and pack into destination */
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GST_DEBUG ("pack line %d", i);
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PACK_FRAME (dest, lines[0], i, out_width);
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/* FIXME, we should be able to convert directly into the destination line
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* when the output format is in the right format */
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GST_DEBUG ("pack line %d", i + out_y);
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PACK_FRAME (dest, l, i + out_y, out_maxwidth);
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}
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if (convert->borderline) {
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for (i = out_y + out_height; i < out_maxheight; i++)
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PACK_FRAME (dest, convert->borderline, i, out_maxwidth);
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}
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}
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@ -1331,7 +1440,7 @@ convert_I420_YUY2 (GstVideoConverter * convert, const GstVideoFrame * src,
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/* now handle last line */
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if (height & 1) {
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, width);
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, convert->in_x, width);
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PACK_FRAME (dest, convert->tmplines[0], height - 1, width);
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}
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}
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@ -1359,7 +1468,7 @@ convert_I420_UYVY (GstVideoConverter * convert, const GstVideoFrame * src,
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/* now handle last line */
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if (height & 1) {
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, width);
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, convert->in_x, width);
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PACK_FRAME (dest, convert->tmplines[0], height - 1, width);
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}
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}
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@ -1386,7 +1495,7 @@ convert_I420_AYUV (GstVideoConverter * convert, const GstVideoFrame * src,
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/* now handle last line */
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if (height & 1) {
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, width);
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, convert->in_x, width);
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PACK_FRAME (dest, convert->tmplines[0], height - 1, width);
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}
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}
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@ -1436,7 +1545,7 @@ convert_I420_Y444 (GstVideoConverter * convert, const GstVideoFrame * src,
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/* now handle last line */
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if (height & 1) {
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, width);
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, convert->in_x, width);
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PACK_FRAME (dest, convert->tmplines[0], height - 1, width);
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}
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}
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@ -1463,7 +1572,7 @@ convert_YUY2_I420 (GstVideoConverter * convert, const GstVideoFrame * src,
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/* now handle last line */
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if (height & 1) {
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, width);
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, convert->in_x, width);
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PACK_FRAME (dest, convert->tmplines[0], height - 1, width);
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}
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}
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@ -1531,7 +1640,7 @@ convert_UYVY_I420 (GstVideoConverter * convert, const GstVideoFrame * src,
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/* now handle last line */
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if (height & 1) {
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, width);
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, convert->in_x, width);
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PACK_FRAME (dest, convert->tmplines[0], height - 1, width);
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}
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}
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@ -1683,7 +1792,7 @@ convert_Y42B_I420 (GstVideoConverter * convert, const GstVideoFrame * src,
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/* now handle last line */
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if (height & 1) {
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, width);
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, convert->in_x, width);
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PACK_FRAME (dest, convert->tmplines[0], height - 1, width);
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}
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}
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@ -1774,7 +1883,7 @@ convert_Y444_I420 (GstVideoConverter * convert, const GstVideoFrame * src,
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/* now handle last line */
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if (height & 1) {
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, width);
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UNPACK_FRAME (src, convert->tmplines[0], height - 1, convert->in_x, width);
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PACK_FRAME (dest, convert->tmplines[0], height - 1, width);
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}
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}
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@ -45,7 +45,7 @@ typedef enum {
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*
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* #GST_TYPE_RESAMPLER_METHOD, The resampler method to use for
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* resampling. Other options for the resampler can be used, see
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* the #GstResampler. Default is #GST_RESAMPLER_METHOD_LINEAR.
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* the #GstResampler. Default is #GST_RESAMPLER_METHOD_CUBIC
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*/
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#define GST_VIDEO_CONVERTER_OPT_RESAMPLER_METHOD "GstVideoConverter.resampler-method"
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/**
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@ -64,6 +64,73 @@ typedef enum {
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*/
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#define GST_VIDEO_CONVERTER_OPT_DITHER_METHOD "GstVideoConverter.dither-method"
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/**
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* GST_VIDEO_CONVERTER_OPT_SRC_X:
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*
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* #G_TYPE_INT, source x position to start conversion, default 0
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*/
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#define GST_VIDEO_CONVERTER_OPT_SRC_X "GstVideoConverter.src-x"
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/**
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* GST_VIDEO_CONVERTER_OPT_SRC_Y:
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*
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* #G_TYPE_INT, source y position to start conversion, default 0
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*/
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#define GST_VIDEO_CONVERTER_OPT_SRC_Y "GstVideoConverter.src-y"
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/**
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* GST_VIDEO_CONVERTER_OPT_SRC_WIDTH:
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*
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* #G_TYPE_INT, source width to convert, default source width
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*/
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#define GST_VIDEO_CONVERTER_OPT_SRC_WIDTH "GstVideoConverter.src-width"
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/**
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* GST_VIDEO_CONVERTER_OPT_SRC_HEIGHT:
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*
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* #G_TYPE_INT, source height to convert, default source height
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*/
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#define GST_VIDEO_CONVERTER_OPT_SRC_HEIGHT "GstVideoConverter.src-height"
|
||||
|
||||
/**
|
||||
* GST_VIDEO_CONVERTER_OPT_DEST_X:
|
||||
*
|
||||
* #G_TYPE_INT, x position in the destination frame, default 0
|
||||
*/
|
||||
#define GST_VIDEO_CONVERTER_OPT_DEST_X "GstVideoConverter.dest-x"
|
||||
/**
|
||||
* GST_VIDEO_CONVERTER_OPT_DEST_Y:
|
||||
*
|
||||
* #G_TYPE_INT, y position in the destination frame, default 0
|
||||
*/
|
||||
#define GST_VIDEO_CONVERTER_OPT_DEST_Y "GstVideoConverter.dest-y"
|
||||
/**
|
||||
* GST_VIDEO_CONVERTER_OPT_DEST_WIDTH:
|
||||
*
|
||||
* #G_TYPE_INT, width in the destination frame, default destination width
|
||||
*/
|
||||
#define GST_VIDEO_CONVERTER_OPT_DEST_WIDTH "GstVideoConverter.dest-width"
|
||||
/**
|
||||
* GST_VIDEO_CONVERTER_OPT_DEST_HEIGHT:
|
||||
*
|
||||
* #G_TYPE_INT, height in the destination frame, default destination height
|
||||
*/
|
||||
#define GST_VIDEO_CONVERTER_OPT_DEST_HEIGHT "GstVideoConverter.dest-height"
|
||||
|
||||
/**
|
||||
* GST_VIDEO_CONVERTER_OPT_FILL_BORDER:
|
||||
*
|
||||
* #G_TYPE_BOOLEAN, if the destination rectangle does not fill the complete
|
||||
* destination image, render a border with
|
||||
* #GST_VIDEO_CONVERTER_OPT_BORDER_ARGB. Otherwise the unusded pixels in the
|
||||
* destination are untouched. Default %TRUE.
|
||||
*/
|
||||
#define GST_VIDEO_CONVERTER_OPT_FILL_BORDER "GstVideoConverter.fill-border"
|
||||
/**
|
||||
* GST_VIDEO_CONVERTER_OPT_BORDER_ARGB:
|
||||
*
|
||||
* #G_TYPE_UINT, the border color to use if #GST_VIDEO_CONVERTER_OPT_FILL_BORDER
|
||||
* is set to %TRUE. Default 0x00000000
|
||||
*/
|
||||
#define GST_VIDEO_CONVERTER_OPT_BORDER_ARGB "GstVideoConverter.border-argb"
|
||||
|
||||
|
||||
typedef struct _GstVideoConverter GstVideoConverter;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue