X-Git-Url: http://47.100.26.94:8080/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjni%2Flibuvc%2Finclude%2Flibuvc%2Flibuvc_internal.h;fp=app%2Fsrc%2Fmain%2Fjni%2Flibuvc%2Finclude%2Flibuvc%2Flibuvc_internal.h;h=b161e4b4a5d2b8c35c084f800baa8c0cdcc05d72;hb=831cc09829bc6e18d8d0d8bb78063e89ea565ce9;hp=0000000000000000000000000000000000000000;hpb=061580c83656bf358b01a6b78fd22ae9bd497728;p=rtmpclient.git diff --git a/app/src/main/jni/libuvc/include/libuvc/libuvc_internal.h b/app/src/main/jni/libuvc/include/libuvc/libuvc_internal.h new file mode 100644 index 0000000..b161e4b --- /dev/null +++ b/app/src/main/jni/libuvc/include/libuvc/libuvc_internal.h @@ -0,0 +1,339 @@ +/** @file libuvc_internal.h + * @brief Implementation-specific UVC constants and structures. + * @cond include_hidden + */ +#ifndef LIBUVC_INTERNAL_H +#define LIBUVC_INTERNAL_H + +#include +#include +#include +#include +#include +#include +#include "utilbase.h" +#include "utlist.h" +#ifdef __ANDROID__ +#include +#endif + +//#define UVC_DEBUGGING + +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#define MAX(a, b) ((a) > (b) ? (a) : (b)) + +/** Converts an unaligned 8-byte little-endian integer into an int64 */ +#define QW_TO_LONG(p) \ + ((p)[0] | ((p)[1] << 8) | ((p)[2] << 16) | ((p)[3] << 24) \ + | ((uint64_t)(p)[4] << 32) | ((uint64_t)(p)[5] << 40) \ + | ((uint64_t)(p)[6] << 48) | ((uint64_t)(p)[7] << 56)) +/** Converts an unaligned four-byte little-endian integer into an int32 */ +#define DW_TO_INT(p) ((p)[0] | ((p)[1] << 8) | ((p)[2] << 16) | ((p)[3] << 24)) +/** Converts an unaligned four-byte little-endian integer into an signed int32 */ +/** Converts an unaligned two-byte little-endian integer into an int16 */ +#define SW_TO_SHORT(p) ((p)[0] | ((p)[1] << 8)) +/** Converts an unaligned two-byte little-endian integer into an int16 as a signed value */ +/** Converts an int16 into an unaligned two-byte little-endian integer */ +#define SHORT_TO_SW(s, p) \ + (p)[0] = (s); \ + (p)[1] = (s) >> 8; +/** Converts an int32 into an unaligned four-byte little-endian integer */ +#define INT_TO_DW(i, p) \ + (p)[0] = (i); \ + (p)[1] = (i) >> 8; \ + (p)[2] = (i) >> 16; \ + (p)[3] = (i) >> 24; +/** Converts an int64 into an unaligned 8-byte little-endian integer */ +#define LONG_TO_QW(i, p) \ + (p)[0] = (i); \ + (p)[1] = (i) >> 8; \ + (p)[2] = (i) >> 16; \ + (p)[3] = (i) >> 24; \ + (p)[4] = (i) >> 32; \ + (p)[5] = (i) >> 40; \ + (p)[6] = (i) >> 48; \ + (p)[7] = (i) >> 56; + + +/** Selects the nth item in a doubly linked list. n=-1 selects the last item. */ +#define DL_NTH(head, out, n) \ + do { \ + int dl_nth_i = 0; \ + LDECLTYPE(head) dl_nth_p = (head); \ + if ((n) < 0) { \ + while (dl_nth_p && dl_nth_i > (n)) { \ + dl_nth_p = dl_nth_p->prev; \ + dl_nth_i--; \ + } \ + } else { \ + while (dl_nth_p && dl_nth_i < (n)) { \ + dl_nth_p = dl_nth_p->next; \ + dl_nth_i++; \ + } \ + } \ + (out) = dl_nth_p; \ + } while (0); + +#ifdef UVC_DEBUGGING +#include +#ifdef __ANDROID__ // add for android saki@sereneginat + #define UVC_DEBUG(...) __android_log_print(ANDROID_LOG_ERROR, "UVC", __VA_ARGS__) + #define UVC_ENTER() __android_log_print(ANDROID_LOG_ERROR, "UVC", "[%s:%d] begin %s", basename(__FILE__), __LINE__, __FUNCTION__) + #define UVC_EXIT(code) __android_log_print(ANDROID_LOG_ERROR, "UVC", "[%s:%d] end %s (%d)", basename(__FILE__), __LINE__, __FUNCTION__, code) + #define UVC_EXIT_VOID() __android_log_print(ANDROID_LOG_ERROR, "UVC", "[%s:%d] end %s", basename(__FILE__), __LINE__, __FUNCTION__) +#else + #define UVC_DEBUG(format, ...) fprintf(stderr, "[%s:%d/%s] " format "\n", basename(__FILE__), __LINE__, __FUNCTION__, ##__VA_ARGS__) + #define UVC_ENTER() fprintf(stderr, "[%s:%d] begin %s\n", basename(__FILE__), __LINE__, __FUNCTION__) + #define UVC_EXIT(code) fprintf(stderr, "[%s:%d] end %s (%d)\n", basename(__FILE__), __LINE__, __FUNCTION__, code) + #define UVC_EXIT_VOID() fprintf(stderr, "[%s:%d] end %s\n", basename(__FILE__), __LINE__, __FUNCTION__) +#endif +#else + #define UVC_DEBUG(...) + #define UVC_ENTER() + #define UVC_EXIT(code) + #define UVC_EXIT_VOID() +#endif + +/* http://stackoverflow.com/questions/19452971/array-size-macro-that-rejects-pointers */ +#define IS_INDEXABLE(arg) (sizeof(arg[0])) +#define IS_ARRAY(arg) (IS_INDEXABLE(arg) && (((void *) &arg) == ((void *) arg))) +#define ARRAYSIZE(arr) (sizeof(arr) / (IS_ARRAY(arr) ? sizeof(arr[0]) : 0)) + +/** Video interface subclass code (A.2) */ +enum uvc_int_subclass_code { + UVC_SC_UNDEFINED = 0x00, + UVC_SC_VIDEOCONTROL = 0x01, + UVC_SC_VIDEOSTREAMING = 0x02, + UVC_SC_VIDEO_INTERFACE_COLLECTION = 0x03 +}; + +/** Video interface protocol code (A.3) */ +enum uvc_int_proto_code { + UVC_PC_PROTOCOL_UNDEFINED = 0x00 +}; + +/** VideoControl interface descriptor subtype (A.5) */ +enum uvc_vc_desc_subtype { + UVC_VC_DESCRIPTOR_UNDEFINED = 0x00, + UVC_VC_HEADER = 0x01, + UVC_VC_INPUT_TERMINAL = 0x02, + UVC_VC_OUTPUT_TERMINAL = 0x03, + UVC_VC_SELECTOR_UNIT = 0x04, + UVC_VC_PROCESSING_UNIT = 0x05, + UVC_VC_EXTENSION_UNIT = 0x06 +}; + +/** UVC endpoint descriptor subtype (A.7) */ +enum uvc_ep_desc_subtype { + UVC_EP_UNDEFINED = 0x00, + UVC_EP_GENERAL = 0x01, + UVC_EP_ENDPOINT = 0x02, + UVC_EP_INTERRUPT = 0x03 +}; + +/** VideoControl interface control selector (A.9.1) */ +enum uvc_vc_ctrl_selector { + UVC_VC_CONTROL_UNDEFINED = 0x00, + UVC_VC_VIDEO_POWER_MODE_CONTROL = 0x01, + UVC_VC_REQUEST_ERROR_CODE_CONTROL = 0x02 +}; + +/** Terminal control selector (A.9.2) */ +enum uvc_term_ctrl_selector { + UVC_TE_CONTROL_UNDEFINED = 0x00 +}; + +/** Selector unit control selector (A.9.3) */ +enum uvc_su_ctrl_selector { + UVC_SU_CONTROL_UNDEFINED = 0x00, + UVC_SU_INPUT_SELECT_CONTROL = 0x01 +}; + +/** Extension unit control selector (A.9.6) */ +enum uvc_xu_ctrl_selector { + UVC_XU_CONTROL_UNDEFINED = 0x00 +}; + +/** VideoStreaming interface control selector (A.9.7) */ +enum uvc_vs_ctrl_selector { + UVC_VS_CONTROL_UNDEFINED = 0x00, + UVC_VS_PROBE_CONTROL = 0x01, + UVC_VS_COMMIT_CONTROL = 0x02, + UVC_VS_STILL_PROBE_CONTROL = 0x03, + UVC_VS_STILL_COMMIT_CONTROL = 0x04, + UVC_VS_STILL_IMAGE_TRIGGER_CONTROL = 0x05, + UVC_VS_STREAM_ERROR_CODE_CONTROL = 0x06, + UVC_VS_GENERATE_KEY_FRAME_CONTROL = 0x07, + UVC_VS_UPDATE_FRAME_SEGMENT_CONTROL = 0x08, + UVC_VS_SYNC_DELAY_CONTROL = 0x09 +}; + +/** Status packet type (2.4.2.2) */ +enum uvc_status_type { + UVC_STATUS_TYPE_CONTROL = 1, + UVC_STATUS_TYPE_STREAMING = 2 +}; + +/** Payload header flags (2.4.3.3) */ +#define UVC_STREAM_EOH (1 << 7) +#define UVC_STREAM_ERR (1 << 6) +#define UVC_STREAM_STI (1 << 5) +#define UVC_STREAM_RES (1 << 4) +#define UVC_STREAM_SCR (1 << 3) +#define UVC_STREAM_PTS (1 << 2) +#define UVC_STREAM_EOF (1 << 1) +#define UVC_STREAM_FID (1 << 0) + +/** Control capabilities (4.1.2) */ +#define UVC_CONTROL_CAP_GET (1 << 0) +#define UVC_CONTROL_CAP_SET (1 << 1) +#define UVC_CONTROL_CAP_DISABLED (1 << 2) +#define UVC_CONTROL_CAP_AUTOUPDATE (1 << 3) +#define UVC_CONTROL_CAP_ASYNCHRONOUS (1 << 4) + +struct uvc_streaming_interface; +struct uvc_device_info; + +/** VideoStream interface */ +typedef struct uvc_streaming_interface { + struct uvc_device_info *parent; + struct uvc_streaming_interface *prev, *next; + /** Interface number */ + uint8_t bInterfaceNumber; + /** Video formats that this interface provides */ + struct uvc_format_desc *format_descs; + /** USB endpoint to use when communicating with this interface */ + uint8_t bEndpointAddress; + uint8_t bTerminalLink; + uint8_t bmInfo; // XXX + uint8_t bStillCaptureMethod; // XXX + uint8_t bTriggerSupport; // XXX + uint8_t bTriggerUsage; // XXX + uint64_t *bmaControls; // XXX +} uvc_streaming_interface_t; + +/** VideoControl interface */ +typedef struct uvc_control_interface { + struct uvc_device_info *parent; + struct uvc_input_terminal *input_term_descs; + struct uvc_output_terminal *output_term_descs; + struct uvc_processing_unit *processing_unit_descs; + struct uvc_extension_unit *extension_unit_descs; + uint16_t bcdUVC; + uint8_t bEndpointAddress; + /** Interface number */ + uint8_t bInterfaceNumber; +} uvc_control_interface_t; + +struct uvc_stream_ctrl; + +struct uvc_device { + struct uvc_context *ctx; + int ref; + libusb_device *usb_dev; +}; + +typedef struct uvc_device_info { + /** Configuration descriptor for USB device */ + struct libusb_config_descriptor *config; + /** VideoControl interface provided by device */ + uvc_control_interface_t ctrl_if; + /** VideoStreaming interfaces on the device */ + uvc_streaming_interface_t *stream_ifs; +} uvc_device_info_t; + +/* + set a high number of transfer buffers. This uses a lot of ram, but + avoids problems with scheduling delays on slow boards causing missed + transfers. A better approach may be to make the transfer thread FIFO + scheduled (if we have root). + We could/should change this to allow reduce it to, say, 5 by default + and then allow the user to change the number of buffers as required. + */ +#define LIBUVC_NUM_TRANSFER_BUFS 10 + +#define LIBUVC_XFER_BUF_SIZE ( 16 * 1024 * 1024 ) + +struct uvc_stream_handle { + struct uvc_device_handle *devh; + struct uvc_stream_handle *prev, *next; + struct uvc_streaming_interface *stream_if; + + /** if true, stream is running (streaming video to host) */ + uint8_t running; + /** Current control block */ + struct uvc_stream_ctrl cur_ctrl; + + /* listeners may only access hold*, and only when holding a + * lock on cb_mutex (probably signaled with cb_cond) */ + uint8_t bfh_err, hold_bfh_err; // XXX added to keep UVC_STREAM_ERR + uint8_t fid; + uint32_t seq, hold_seq; + uint32_t pts, hold_pts; + uint32_t last_scr, hold_last_scr; + size_t got_bytes, hold_bytes; + size_t size_buf; // XXX add for boundary check + uint8_t *outbuf, *holdbuf; + pthread_mutex_t cb_mutex; + pthread_cond_t cb_cond; + pthread_t cb_thread; + uint32_t last_polled_seq; + uvc_frame_callback_t *user_cb; + void *user_ptr; + struct libusb_transfer *transfers[LIBUVC_NUM_TRANSFER_BUFS]; + uint8_t *transfer_bufs[LIBUVC_NUM_TRANSFER_BUFS]; + struct uvc_frame frame; + enum uvc_frame_format frame_format; +}; + +/** Handle on an open UVC device + * + * @todo move most of this into a uvc_device struct? + */ +struct uvc_device_handle { + struct uvc_device *dev; + struct uvc_device_handle *prev, *next; + /** Underlying USB device handle */ + libusb_device_handle *usb_devh; + struct uvc_device_info *info; + struct libusb_transfer *status_xfer; + pthread_mutex_t status_mutex; // XXX saki + uint8_t status_buf[32]; + /** Function to call when we receive status updates from the camera */ + uvc_status_callback_t *status_cb; + void *status_user_ptr; + /** Function to call when we receive button events from the camera */ + uvc_button_callback_t *button_cb; + void *button_user_ptr; + + uvc_stream_handle_t *streams; + /** Whether the camera is an iSight that sends one header per frame */ + uint8_t is_isight; + uint8_t reset_on_release_if; // XXX whether interface alt setting needs to reset to 0. +}; + +/** Context within which we communicate with devices */ +struct uvc_context { + /** Underlying context for USB communication */ + struct libusb_context *usb_ctx; + /** True if libuvc initialized the underlying USB context */ + uint8_t own_usb_ctx; + /** List of open devices in this context */ + uvc_device_handle_t *open_devices; + pthread_t handler_thread; + uint8_t kill_handler_thread; +}; + +uvc_error_t uvc_query_stream_ctrl( + uvc_device_handle_t *devh, + uvc_stream_ctrl_t *ctrl, + uint8_t probe, + enum uvc_req_code req); + +void uvc_start_handler_thread(uvc_context_t *ctx); +uvc_error_t uvc_claim_if(uvc_device_handle_t *devh, int idx); +uvc_error_t uvc_release_if(uvc_device_handle_t *devh, int idx); + +#endif // !def(LIBUVC_INTERNAL_H) +/** @endcond */ +