25 #include "librsvg-2.0/librsvg/rsvg.h"
42 RsvgDimensionData unscaled_dimensions, dimensions;
43 cairo_surface_t *image;
44 cairo_t *crender =
NULL;
56 rsvg_handle_get_dimensions(handle, &dimensions);
57 rsvg_handle_get_dimensions(handle, &unscaled_dimensions);
58 dimensions.width =
s->width ?
s->width : dimensions.width;
59 dimensions.height =
s->height ?
s->height : dimensions.height;
60 if (
s->keep_ar && (
s->width ||
s->height)) {
61 double default_ar = unscaled_dimensions.width/(double)unscaled_dimensions.height;
63 dimensions.width =
lrintf(dimensions.height * default_ar);
65 dimensions.height =
lrintf(dimensions.width / default_ar);
77 image = cairo_image_surface_create_for_data(
frame->
data[0], CAIRO_FORMAT_ARGB32,
80 if (cairo_surface_status(image) != CAIRO_STATUS_SUCCESS)
83 crender = cairo_create(image);
86 cairo_set_operator(crender, CAIRO_OPERATOR_CLEAR);
88 cairo_restore(crender);
90 cairo_scale(crender, dimensions.width / (
double)unscaled_dimensions.width,
91 dimensions.height / (
double)unscaled_dimensions.height);
93 rsvg_handle_render_cairo(handle, crender);
95 cairo_destroy(crender);
96 cairo_surface_destroy(image);
97 g_object_unref(handle);
104 #define OFFSET(x) offsetof(LibRSVGContext, x)
105 #define DEC (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
129 .wrapper_name =
"librsvg",
Libavcodec external API header.
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
const char * av_default_item_name(void *ptr)
Return the context name.
@ AV_PICTURE_TYPE_I
Intra.
#define LIBAVUTIL_VERSION_INT
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static const AVOption options[]
static const AVClass librsvg_decoder_class
static int librsvg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
AVCodec ff_librsvg_decoder
Describe the class of an AVClass context structure.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
main external API structure.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int width
picture width / height.
const char * name
Name of the codec implementation.
This structure describes decoded (raw) audio or video data.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
int key_frame
1 -> keyframe, 0-> not
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
enum AVPictureType pict_type
Picture type of the frame.
This structure stores compressed data.
static void error(const char *err)