CSRIAviSynth::CSRIAviSynth(PClip _child, IScriptEnvironment *env,
const char *file, const char *rendname, const char *rendver)
: GenericVideoFilter(_child)
{
csri_rend *r = csri_renderer_byname(rendname, rendver);
if (!r) {
if (rendver)
env->ThrowError("Failed to load renderer \"%s\""
" version \"%s\"", rendname, rendver);
else if (rendname)
env->ThrowError("Failed to load renderer \"%s\"",
rendname);
else
env->ThrowError("Failed to load default renderer");
}
struct csri_fmt fmt;
fmt.pixfmt = GetPixfmt();
if (fmt.pixfmt == -1)
env->ThrowError("Pixel format not supported by "
"AviSynth interface");
inst = csri_open_file(r, file, NULL);
if (!inst)
env->ThrowError("Failed to load \"%s\"", file);
fmt.width = vi.width;
fmt.height = vi.height;
if (csri_request_fmt(inst, &fmt)) {
csri_close(inst);
env->ThrowError("Selected pixel format or size not supported "
"by selected subtitle renderer", file);
}
spf = (double)vi.fps_denominator / (double)vi.fps_numerator;
}
int kCSRI::Draw(videoframe& dst)
{
// Check if CSRI loaded properly
if(!kInstance) return 1; // no CSRI loaded
// Load data into frame
csri_frame frame;
frame.pixfmt = CSRI_F_BGR_;
for(size_t i = 0; i < 4; i++)
{
frame.planes[i] = NULL;
frame.strides[0] = 0;
}
frame.planes[0] = dst.data;
frame.strides[0] = 4 * dst.width;
// Set format
csri_fmt format;
format.width = dst.width;
format.height = dst.height;
format.pixfmt = frame.pixfmt;
int error = csri_request_fmt(kInstance, &format);
if(error) return 2; // incompatible format
// Render
csri_render(kInstance, &frame, 0);
return 0;
}
void CSRISubtitlesProvider::DrawSubtitles(VideoFrame &dst,double time) {
if (!instance) return;
csri_frame frame;
if (dst.flipped) {
frame.planes[0] = dst.data.data() + (dst.height-1) * dst.width * 4;
frame.strides[0] = -(signed)dst.width * 4;
}
else {
frame.planes[0] = dst.data.data();
frame.strides[0] = dst.width * 4;
}
frame.pixfmt = CSRI_F_BGR_;
csri_fmt format = { frame.pixfmt, dst.width, dst.height };
std::lock_guard<std::mutex> lock(csri_mutex);
if (!csri_request_fmt(instance, &format))
csri_render(instance, &frame, time);
}