exit(1);
}
- libusb_device_handle *devh = open_card(card_index, &description);
+ devh = open_card(card_index, &description);
if (!devh) {
fprintf(stderr, "Error finding USB device\n");
exit(1);
// 0x20 - 720p??
// 0x30 - 576p??
+ update_capture_mode();
+
struct ctrl {
int endpoint;
int request;
{ LIBUSB_ENDPOINT_IN, 214, 16, 0 },
{ LIBUSB_ENDPOINT_IN, 214, 0, 0 },
- // seems to capture on HDMI, clearing the 0x20000000 bit seems to activate 10-bit
- // capture (v210).
- // clearing the 0x08000000 bit seems to change the capture format (other source?)
- // 0x10000000 = analog audio instead of embedded audio, it seems
- // 0x3a000000 = component video? (analog audio)
- // 0x3c000000 = composite video? (analog audio)
- // 0x3e000000 = s-video? (analog audio)
- { LIBUSB_ENDPOINT_OUT, 215, 0, 0x29000000 },
//{ LIBUSB_ENDPOINT_OUT, 215, 0, 0x80000100 },
//{ LIBUSB_ENDPOINT_OUT, 215, 0, 0x09000000 },
{ LIBUSB_ENDPOINT_OUT, 215, 24, 0x73c60001 }, // latch for frame start?
{
assert(video_mode_id == 0); // Matches get_available_video_modes().
}
+
+std::map<uint32_t, std::string> BMUSBCapture::get_available_video_inputs() const
+{
+ return {
+ { 0x00000000, "HDMI/SDI" },
+ { 0x02000000, "Component" },
+ { 0x04000000, "Composite" },
+ { 0x06000000, "S-video" }
+ };
+}
+
+void BMUSBCapture::set_video_input(uint32_t video_input_id)
+{
+ assert((video_input_id & ~0x06000000) == 0);
+ current_video_input = video_input_id;
+ update_capture_mode();
+}
+
+std::map<uint32_t, std::string> BMUSBCapture::get_available_audio_inputs() const
+{
+ return {
+ { 0x00000000, "Embedded" },
+ { 0x10000000, "Analog" }
+ };
+}
+
+void BMUSBCapture::set_audio_input(uint32_t audio_input_id)
+{
+ assert((audio_input_id & ~0x10000000) == 0);
+ current_audio_input = audio_input_id;
+ update_capture_mode();
+}
+
+void BMUSBCapture::update_capture_mode()
+{
+ // clearing the 0x20000000 bit seems to activate 10-bit capture (v210).
+ // clearing the 0x08000000 bit seems to change the capture format (other source?)
+ uint32_t mode = htonl(0x29000000 | current_video_input | current_audio_input);
+
+ int rc = libusb_control_transfer(devh, LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_OUT,
+ /*request=*/215, /*value=*/0, /*index=*/0, (unsigned char *)&mode, sizeof(mode), /*timeout=*/0);
+ if (rc < 0) {
+ fprintf(stderr, "Error on setting mode: %s\n", libusb_error_name(rc));
+ exit(1);
+ }
+}
#include <thread>
#include <vector>
+struct libusb_device_handle;
struct libusb_transfer;
// An interface for frame allocators; if you do not specify one
virtual uint32_t get_current_video_mode() const = 0;
virtual void set_video_mode(uint32_t video_mode_id) = 0;
+ virtual std::map<uint32_t, std::string> get_available_video_inputs() const = 0;
+ virtual void set_video_input(uint32_t video_input_id) = 0;
+ virtual uint32_t get_current_video_input() const = 0;
+
+ virtual std::map<uint32_t, std::string> get_available_audio_inputs() const = 0;
+ virtual void set_audio_input(uint32_t audio_input_id) = 0;
+ virtual uint32_t get_current_audio_input() const = 0;
+
// Does not take ownership.
virtual void set_video_frame_allocator(FrameAllocator *allocator) = 0;
uint32_t get_current_video_mode() const override;
void set_video_mode(uint32_t video_mode_id) override;
+ virtual std::map<uint32_t, std::string> get_available_video_inputs() const override;
+ virtual void set_video_input(uint32_t video_input_id) override;
+ virtual uint32_t get_current_video_input() const override { return current_video_input; }
+
+ virtual std::map<uint32_t, std::string> get_available_audio_inputs() const override;
+ virtual void set_audio_input(uint32_t audio_input_id) override;
+ virtual uint32_t get_current_audio_input() const override { return current_audio_input; }
+
// Does not take ownership.
void set_video_frame_allocator(FrameAllocator *allocator) override
{
static void usb_thread_func();
static void cb_xfr(struct libusb_transfer *xfr);
+ void update_capture_mode();
+
std::string description;
FrameAllocator::Frame current_video_frame;
int card_index;
std::vector<libusb_transfer *> iso_xfrs;
int assumed_frame_width = 1280;
+
+ libusb_device_handle *devh = nullptr;
+ uint32_t current_video_input = 0x00000000; // HDMI/SDI.
+ uint32_t current_audio_input = 0x00000000; // Embedded.
};
// Get details for the given video format; returns false if detection was incomplete.