uvc_h264.h

 
#ifndef UVC_H264_H
#define UVC_H264_H
 
#include <winpr/wtypes.h>
 
#include "../camera.h"
#include "camera_v4l.h"
 
/* UVC H.264 control selectors */
#define UVCX_VIDEO_CONFIG_PROBE 0x01
#define UVCX_VIDEO_CONFIG_COMMIT 0x02
#define UVCX_RATE_CONTROL_MODE 0x03
#define UVCX_TEMPORAL_SCALE_MODE 0x04
#define UVCX_SPATIAL_SCALE_MODE 0x05
#define UVCX_SNR_SCALE_MODE 0x06
#define UVCX_LTR_BUFFER_SIZE_CONTROL 0x07
#define UVCX_LTR_PICTURE_CONTROL 0x08
#define UVCX_PICTURE_TYPE_CONTROL 0x09
#define UVCX_VERSION 0x0A
#define UVCX_ENCODER_RESET 0x0B
#define UVCX_FRAMERATE_CONFIG 0x0C
#define UVCX_VIDEO_ADVANCE_CONFIG 0x0D
#define UVCX_BITRATE_LAYERS 0x0E
#define UVCX_QP_STEPS_LAYERS 0x0F
 
/* Video Class-Specific Request Codes */
#define UVC_RC_UNDEFINED 0x00
#define UVC_SET_CUR 0x01
#define UVC_GET_CUR 0x81
#define UVC_GET_MIN 0x82
#define UVC_GET_MAX 0x83
#define UVC_GET_RES 0x84
#define UVC_GET_LEN 0x85
#define UVC_GET_INFO 0x86
#define UVC_GET_DEF 0x87
 
/* bStreamMuxOption defines */
#define STREAMMUX_H264 (1 << 0) | (1 << 1)
 
/* wProfile defines */
#define PROFILE_BASELINE 0x4200
#define PROFILE_MAIN 0x4D00
#define PROFILE_HIGH 0x6400
 
/* bUsageType defines */
#define USAGETYPE_REALTIME 0x01
 
/* bRateControlMode defines */
#define RATECONTROL_CBR 0x01
#define RATECONTROL_VBR 0x02
#define RATECONTROL_CONST_QP 0x03
 
/* bEntropyCABAC defines */
#define ENTROPY_CABAC 0x01
 
/* bmHints defines */
#define BMHINTS_RESOLUTION 0x0001
#define BMHINTS_PROFILE 0x0002
#define BMHINTS_RATECONTROL 0x0004
#define BMHINTS_USAGE 0x0008
#define BMHINTS_SLICEMODE 0x0010
#define BMHINTS_SLICEUNITS 0x0020
#define BMHINTS_MVCVIEW 0x0040
#define BMHINTS_TEMPORAL 0x0080
#define BMHINTS_SNR 0x0100
#define BMHINTS_SPATIAL 0x0200
#define BMHINTS_SPATIAL_RATIO 0x0400
#define BMHINTS_FRAME_INTERVAL 0x0800
#define BMHINTS_LEAKY_BKT_SIZE 0x1000
#define BMHINTS_BITRATE 0x2000
#define BMHINTS_ENTROPY 0x4000
#define BMHINTS_IFRAMEPERIOD 0x8000
 
/* USB related defines */
#define USB_VIDEO_CONTROL 0x01
#define USB_VIDEO_CONTROL_INTERFACE 0x24
#define USB_VIDEO_CONTROL_XU_TYPE 0x06
 
#define MAX_DEVPATH_DEPTH 8
#define MAX_DEVPATH_STR_SIZE 32
 
#define WINPR_PACK_PUSH
#include <winpr/pack.h>
 
/* h264 probe commit struct (uvc 1.1) - packed */
typedef struct
{
  uint32_t dwFrameInterval;
  uint32_t dwBitRate;
  uint16_t bmHints;
  uint16_t wConfigurationIndex;
  uint16_t wWidth;
  uint16_t wHeight;
  uint16_t wSliceUnits;
  uint16_t wSliceMode;
  uint16_t wProfile;
  uint16_t wIFramePeriod;
  uint16_t wEstimatedVideoDelay;
  uint16_t wEstimatedMaxConfigDelay;
  uint8_t bUsageType;
  uint8_t bRateControlMode;
  uint8_t bTemporalScaleMode;
  uint8_t bSpatialScaleMode;
  uint8_t bSNRScaleMode;
  uint8_t bStreamMuxOption;
  uint8_t bStreamFormat;
  uint8_t bEntropyCABAC;
  uint8_t bTimestamp;
  uint8_t bNumOfReorderFrames;
  uint8_t bPreviewFlipped;
  uint8_t bView;
  uint8_t bReserved1;
  uint8_t bReserved2;
  uint8_t bStreamID;
  uint8_t bSpatialLayerRatio;
  uint16_t wLeakyBucketSize;
 
} uvcx_video_config_probe_commit_t;
 
/* encoder reset struct - packed */
typedef struct
{
  uint16_t wLayerID;
 
} uvcx_encoder_reset;
 
/* xu_descriptor struct - packed */
typedef struct
{
  int8_t bLength;
  int8_t bDescriptorType;
  int8_t bDescriptorSubType;
  int8_t bUnitID;
  uint8_t guidExtensionCode[16];
 
} xu_descriptor;
 
#define WINPR_PACK_POP
#include <winpr/pack.h>
 
uint8_t get_uvc_h624_unit_id(const char* deviceId);
BOOL set_h264_muxed_format(CamV4lStream* stream, const CAM_MEDIA_TYPE_DESCRIPTION* mediaType);
 
#endif /* UVC_H264_H */