@@ -30,6 +30,8 @@ typedef struct LibRSVGContext {
int width;
int height;
int keep_ar;
+ char *base_uri;
+ int flag;
} LibRSVGContext;
static int librsvg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
@@ -42,11 +44,22 @@ static int librsvg_decode_frame(AVCodecContext *avctx, void *data, int *got_fram
RsvgDimensionData unscaled_dimensions, dimensions;
cairo_surface_t *image;
cairo_t *crender = NULL;
+
GError *error = NULL;
-
+ GInputStream *input_stream;
+ GFile *referenced_file;
+
*got_frame = 0;
- handle = rsvg_handle_new_from_data(pkt->data, pkt->size, &error);
+ input_stream = g_memory_input_stream_new_from_data (pkt->data, pkt->size, NULL);
+ referenced_file = g_file_new_for_path(s->base_uri);
+
+ handle = rsvg_handle_new_from_stream_sync (input_stream,
+ referenced_file,
+ s->flag,
+ NULL,
+ &error);
+
if (error) {
av_log(avctx, AV_LOG_ERROR, "Error parsing svg!\n");
g_error_free(error);
@@ -94,8 +107,10 @@ static int librsvg_decode_frame(AVCodecContext *avctx, void *data, int *got_fram
cairo_destroy(crender);
cairo_surface_destroy(image);
- g_object_unref(handle);
+ g_object_unref(handle);
+ g_object_unref(referenced_file);
+ g_object_unref(input_stream);
*got_frame = 1;
return 0;
@@ -103,10 +118,13 @@ static int librsvg_decode_frame(AVCodecContext *avctx, void *data, int *got_fram
#define OFFSET(x) offsetof(LibRSVGContext, x)
#define DEC (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
+
static const AVOption options[] = {
{ "width", "Width to render to (0 for default)", OFFSET(width), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, DEC },
{ "height", "Height to render to (0 for default)", OFFSET(height), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, DEC },
{ "keep_ar", "Keep aspect ratio with custom width/height", OFFSET(keep_ar), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, DEC },
+ { "base_uri", "Base URI to load referenced files", OFFSET(base_uri), AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, DEC },
+ { "handle_flag", "Value of RsvgHandleFlags", OFFSET(flag), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, DEC},
{ NULL },
};
Usage of the data URI scheme is currently needed to load external references in SVGs. This patch adds a base_uri parameter so linked images can be rendered without encoding them in Base64. <!-- Example usage: ffmpeg -base_uri "/path/to/base/dir" -i example.svg out.png --> <!-- example.svg: --> <svg width="200" height="200" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <image xlink:href="file:///absolute/path/to/base/dir/image.png" height="200" width="200"/> </svg> Signed-off-by: Daniel Petri Rocha <daniel.petri@tum.de> --- libavcodec/librsvgdec.c | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-)