/* 
 * The MIT License (MIT)
 *
 * Copyright (c) 2020 Jerzy Kasenbreg
 * Copyright (c) 2021 Koji KITAYAMA
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

#ifndef _USB_DESCRIPTORS_H_
#define _USB_DESCRIPTORS_H_

/* Time stamp base clock. It is a deprecated parameter. */
#define UVC_CLOCK_FREQUENCY    27000000
// video capture path
#define UVC_ENTITY_CAP_INPUT_TERMINAL  0x01
#define UVC_ENTITY_CAP_OUTPUT_TERMINAL 0x02

enum {
  ITF_NUM_VIDEO_CONTROL = 0,
  ITF_NUM_VIDEO_STREAMING,
  ITF_NUM_TOTAL
};

#define TUD_VIDEO_CAPTURE_DESC_LEN (\
    TUD_VIDEO_DESC_IAD_LEN\
    /* control */\
    + TUD_VIDEO_DESC_STD_VC_LEN\
    + (TUD_VIDEO_DESC_CS_VC_LEN + 1/*bInCollection*/)\
    + TUD_VIDEO_DESC_INPUT_TERM_LEN\
    + TUD_VIDEO_DESC_OUTPUT_TERM_LEN\
    /* Interface 1, Alternate 0 */\
    + TUD_VIDEO_DESC_STD_VS_LEN\
    + (TUD_VIDEO_DESC_CS_VS_IN_LEN + 1/*bNumFormats x bControlSize*/)\
    + TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR_LEN\
    + TUD_VIDEO_DESC_CS_VS_FRM_UNCOMPR_CONT_LEN\
    + TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN\
  )

#if 0
    /* Interface 1, Alternate 1 */\
    + TUD_VIDEO_DESC_STD_VS_LEN\
    + 7/* Endpoint */\

#endif

#define TUD_VIDEO_DESC_CS_VS_FMT_YUY2(_fmtidx, _numfmtdesc, _frmidx, _asrx, _asry, _interlace, _cp) \
  TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR(_fmtidx, _numfmtdesc, TUD_VIDEO_GUID_YUY2, 16, _frmidx, _asrx, _asry, _interlace, _cp)
#define TUD_VIDEO_DESC_CS_VS_FMT_NV12(_fmtidx, _numfmtdesc, _frmidx, _asrx, _asry, _interlace, _cp) \
  TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR(_fmtidx, _numfmtdesc, TUD_VIDEO_GUID_NV12, 12, _frmidx, _asrx, _asry, _interlace, _cp)
#define TUD_VIDEO_DESC_CS_VS_FMT_M420(_fmtidx, _numfmtdesc, _frmidx, _asrx, _asry, _interlace, _cp) \
  TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR(_fmtidx, _numfmtdesc, TUD_VIDEO_GUID_M420, 12, _frmidx, _asrx, _asry, _interlace, _cp)
#define TUD_VIDEO_DESC_CS_VS_FMT_I420(_fmtidx, _numfmtdesc, _frmidx, _asrx, _asry, _interlace, _cp) \
  TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR(_fmtidx, _numfmtdesc, TUD_VIDEO_GUID_I420, 12, _frmidx, _asrx, _asry, _interlace, _cp)

#define TUD_VIDEO_CAPTURE_DESCRIPTOR(_stridx, _epin, _width, _height, _fps) \
  TUD_VIDEO_DESC_IAD(ITF_NUM_VIDEO_CONTROL, ITF_NUM_TOTAL, _stridx), \
    /* Video control 0 */ \
    TUD_VIDEO_DESC_STD_VC(ITF_NUM_VIDEO_CONTROL, 0, _stridx), \
      TUD_VIDEO_DESC_CS_VC( /* UVC 1.5*/ 0x0150, \
           /* wTotalLength - bLength */ \
           TUD_VIDEO_DESC_INPUT_TERM_LEN + TUD_VIDEO_DESC_OUTPUT_TERM_LEN, \
           UVC_CLOCK_FREQUENCY, 1, 1), \
        TUD_VIDEO_DESC_INPUT_TERM(UVC_ENTITY_CAP_INPUT_TERMINAL,\
                                   VIDEO_TT_COMPOSITE_CONNECTOR, 0, 0), \
        TUD_VIDEO_DESC_OUTPUT_TERM(UVC_ENTITY_CAP_OUTPUT_TERMINAL,\
                                   VIDEO_TT_STREAMING, 0, 1, 0), \
    /* Video stream alt. 0 */ \
    TUD_VIDEO_DESC_STD_VS( 1, 0, 0, 0), \
      /* Video stream header for without still image capture */ \
      TUD_VIDEO_DESC_CS_VS_INPUT( /*bNumFormats*/1, \
          /*wTotalLength - bLength */\
          TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR_LEN\
          + TUD_VIDEO_DESC_CS_VS_FRM_UNCOMPR_CONT_LEN\
          + TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN,\
          _epin, /*bmInfo*/0, /*bTerminalLink*/UVC_ENTITY_CAP_OUTPUT_TERMINAL, \
          /*bStillCaptureMethod*/0, /*bTriggerSupport*/0, /*bTriggerUsage*/0, \
          /*bControlSize*/1, /*bmaControls(1)*/0), \
        /* Video stream format */ \
        TUD_VIDEO_DESC_CS_VS_FMT_I420(/*bFormatIndex*/1, /*bNumFrameDescriptors*/1,\
          /*bDefaultFrameIndex*/1, 1, 1, 0, /*bCopyProtect*/0), \
          /* Video stream frame format */ \
          TUD_VIDEO_DESC_CS_VS_FRM_UNCOMPR_CONT(/*bFrameIndex */1, 0, _width, _height, \
              _width * _height * 12, _width * _height * 12 * _fps, \
              _width * _height * 12, \
              (10000000/_fps), (10000000/1), (10000000/_fps), 166666), \
        TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING(VIDEO_COLOR_PRIMARIES_BT709,\
           VIDEO_COLOR_XFER_CH_BT709, VIDEO_COLOR_COEF_SMPTE170M), \
    /* VS alt 1 */\
    TUD_VIDEO_DESC_STD_VS(1, 1, 1, 0), \
      /* EP */ \
      TUD_VIDEO_DESC_EP_ISO(_epin, (_width * _height * 12 / 8) * _fps, 1)


#endif