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#include <stdlib.h>
#include <obs.h>
#include <obs-module.h>
#include <bmusb/bmusb.h>
#include <stdio.h>
using bmusb::BMUSBCapture;
using bmusb::FrameAllocator;
using bmusb::VideoFormat;
using bmusb::AudioFormat;
struct bmusb_inst {
obs_source_t *source;
BMUSBCapture *capture;
bool initialized;
};
static const char *bmusb_getname(void *unused)
{
UNUSED_PARAMETER(unused);
return "Blackmagic USB3 source (bmusb)";
}
static void bmusb_destroy(void *data)
{
struct bmusb_inst *rt = (bmusb_inst *) data;
if (rt) {
if (rt->initialized) {
BMUSBCapture::stop_bm_thread();
delete rt->capture;
}
bfree(rt);
}
}
static void *bmusb_create(obs_data_t *settings, obs_source_t *source)
{
struct bmusb_inst *rt = (bmusb_inst *) bzalloc(sizeof(struct bmusb_inst));
rt->source = source;
rt->capture = new BMUSBCapture(0); // @TODO select card
rt->capture->set_pixel_format(bmusb::PixelFormat_8BitYCbCr);
rt->capture->set_frame_callback(
[rt](uint16_t timecode,
FrameAllocator::Frame video_frame, size_t video_offset, VideoFormat video_format,
FrameAllocator::Frame audio_frame, size_t audio_offset, AudioFormat audio_format
) {
printf("got fraem %d\n", timecode);
UNUSED_PARAMETER(video_format);
UNUSED_PARAMETER(audio_format);
rt->capture->get_video_frame_allocator()->release_frame(video_frame);
rt->capture->get_audio_frame_allocator()->release_frame(audio_frame);
}
);
rt->capture->configure_card();
BMUSBCapture::start_bm_thread();
rt->capture->start_bm_capture();
rt->initialized = true;
UNUSED_PARAMETER(settings);
UNUSED_PARAMETER(source);
return rt;
}
struct obs_source_info bmusb_source_info = {
.id = "bmusb",
.type = OBS_SOURCE_TYPE_INPUT,
.output_flags = OBS_SOURCE_ASYNC_VIDEO,
.get_name = bmusb_getname,
.create = bmusb_create,
.destroy = bmusb_destroy,
};
OBS_DECLARE_MODULE()
extern "C" bool obs_module_load(void)
{
obs_register_source(&bmusb_source_info);
return true;
}
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