static const VSFrameRef *_vszimg_get_frame(struct vszimg_data *data, const VSFrameRef *src_frame, VSCore *core, const VSAPI *vsapi, char *err_msg, size_t err_msg_size)
{
struct vszimg_graph_data *graph_data = NULL;
VSFrameRef *dst_frame = NULL;
VSFrameRef *ret = NULL;
void *tmp = NULL;
struct callback_data unpack_cb_data = { 0 };
struct callback_data pack_cb_data = { 0 };
zimg_image_format src_format;
zimg_image_format dst_format;
const VSFormat *src_vsformat;
const VSFormat *dst_vsformat;
const VSMap *src_props;
VSMap *dst_props;
size_t tmp_size;
zimg_image_format_default(&src_format, ZIMG_API_VERSION);
zimg_image_format_default(&dst_format, ZIMG_API_VERSION);
src_props = vsapi->getFramePropsRO(src_frame);
src_vsformat = vsapi->getFrameFormat(src_frame);
dst_vsformat = data->vi.format ? data->vi.format : src_vsformat;
src_format.width = vsapi->getFrameWidth(src_frame, 0);
src_format.height = vsapi->getFrameHeight(src_frame, 0);
dst_format.width = data->vi.width ? (unsigned)data->vi.width : src_format.width;
dst_format.height = data->vi.height ? (unsigned)data->vi.height : src_format.height;
if (translate_vsformat(src_vsformat, &src_format, err_msg))
goto fail;
if (translate_vsformat(dst_vsformat, &dst_format, err_msg))
goto fail;
_vszimg_set_src_colorspace(data, &src_format);
if (import_frame_props(vsapi, src_props, &src_format, err_msg))
goto fail;
_vszimg_set_dst_colorspace(data, &src_format, &dst_format);
if (!(graph_data = _vszimg_get_graph_data(data, &src_format, &dst_format, err_msg, err_msg_size)))
goto fail;
dst_frame = vsapi->newVideoFrame(dst_vsformat, dst_format.width, dst_format.height, src_frame, core);
dst_props = vsapi->getFramePropsRW(dst_frame);
if (callback_init_unpack(&unpack_cb_data, graph_data->graph, src_frame, &src_format, src_vsformat, core, vsapi, err_msg, err_msg_size))
goto fail;
if (callback_init_pack(&pack_cb_data, graph_data->graph, dst_frame, &dst_format, dst_vsformat, core, vsapi, err_msg, err_msg_size))
goto fail;
if (zimg_filter_graph_get_tmp_size(graph_data->graph, &tmp_size)) {
format_zimg_error(err_msg, err_msg_size);
goto fail;
}
VS_ALIGNED_MALLOC(&tmp, tmp_size, 64);
if (!tmp) {
sprintf(err_msg, "error allocating temporary buffer");
goto fail;
}
if (zimg_filter_graph_process(graph_data->graph,
&unpack_cb_data.line_buf.c,
&pack_cb_data.line_buf.m,
tmp,
unpack_cb_data.cb,
&unpack_cb_data,
pack_cb_data.cb,
&pack_cb_data))
{
format_zimg_error(err_msg, err_msg_size);
goto fail;
}
propagate_sar(vsapi, src_props, dst_props, &src_format, &dst_format);
export_frame_props(vsapi, &dst_format, dst_props);
ret = dst_frame;
dst_frame = NULL;
fail:
_vszimg_release_graph_data(data, graph_data);
vsapi->freeFrame(dst_frame);
VS_ALIGNED_FREE(tmp);
callback_destroy(&unpack_cb_data, vsapi);
callback_destroy(&pack_cb_data, vsapi);
return ret;
}
static const VSFrameRef * VS_CC vszimg_get_frame(int n, int activationReason, void **instanceData, void **frameData, VSFrameContext *frameCtx, VSCore *core, const VSAPI *vsapi)
{
struct vszimg_data *data = *instanceData;
struct vszimg_graph_data *graph_data = NULL;
const VSFrameRef *src_frame = NULL;
VSFrameRef *dst_frame = NULL;
VSFrameRef *ret = NULL;
void *tmp = NULL;
char err_msg[1024];
int err_flag = 1;
if (activationReason == arInitial) {
vsapi->requestFrameFilter(n, data->node, frameCtx);
} else if (activationReason == arAllFramesReady) {
zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
zimg_image_buffer dst_buf = { { ZIMG_API_VERSION } };
zimg_image_format src_format;
zimg_image_format dst_format;
const VSFormat *src_vsformat;
const VSFormat *dst_vsformat;
const VSMap *src_props;
VSMap *dst_props;
size_t tmp_size;
int p;
zimg2_image_format_default(&src_format, ZIMG_API_VERSION);
zimg2_image_format_default(&dst_format, ZIMG_API_VERSION);
src_frame = vsapi->getFrameFilter(n, data->node, frameCtx);
src_props = vsapi->getFramePropsRO(src_frame);
src_vsformat = vsapi->getFrameFormat(src_frame);
dst_vsformat = data->vi.format ? data->vi.format : src_vsformat;
src_format.width = vsapi->getFrameWidth(src_frame, 0);
src_format.height = vsapi->getFrameHeight(src_frame, 0);
dst_format.width = data->vi.width ? (unsigned)data->vi.width : src_format.width;
dst_format.height = data->vi.height ? (unsigned)data->vi.height : src_format.height;
if (translate_vsformat(src_vsformat, &src_format, err_msg))
goto fail;
if (translate_vsformat(dst_vsformat, &dst_format, err_msg))
goto fail;
_vszimg_set_src_colorspace(data, &src_format);
if (import_frame_props(vsapi, src_props, &src_format, err_msg))
goto fail;
_vszimg_set_dst_colorspace(data, &src_format, &dst_format);
if (!(graph_data = _vszimg_get_graph_data(data, &src_format, &dst_format, err_msg, sizeof(err_msg))))
goto fail;
dst_frame = vsapi->newVideoFrame(dst_vsformat, dst_format.width, dst_format.height, src_frame, core);
dst_props = vsapi->getFramePropsRW(dst_frame);
for (p = 0; p < src_vsformat->numPlanes; ++p) {
src_buf.data[p] = vsapi->getReadPtr(src_frame, p);
src_buf.stride[p] = vsapi->getStride(src_frame, p);
src_buf.mask[p] = -1;
}
for (p = 0; p < dst_vsformat->numPlanes; ++p) {
dst_buf.m.data[p] = vsapi->getWritePtr(dst_frame, p);
dst_buf.m.stride[p] = vsapi->getStride(dst_frame, p);
dst_buf.m.mask[p] = -1;
}
if (zimg2_filter_graph_get_tmp_size(graph_data->graph, &tmp_size)) {
format_zimg_error(err_msg, sizeof(err_msg));
goto fail;
}
VS_ALIGNED_MALLOC(&tmp, tmp_size, 64);
if (!tmp) {
sprintf(err_msg, "error allocating temporary buffer");
goto fail;
}
if (zimg2_filter_graph_process(graph_data->graph, &src_buf, &dst_buf, tmp, NULL, NULL, NULL, NULL)) {
format_zimg_error(err_msg, sizeof(err_msg));
goto fail;
}
propagate_sar(vsapi, src_props, dst_props, &src_format, &dst_format);
export_frame_props(vsapi, &dst_format, dst_props);
ret = dst_frame;
dst_frame = NULL;
}
err_flag = 0;
fail:
if (err_flag)
vsapi->setFilterError(err_msg, frameCtx);
_vszimg_release_graph_data(data, graph_data);
vsapi->freeFrame(src_frame);
vsapi->freeFrame(dst_frame);
return ret;
}