/*
  * Intel MediaSDK QSV encoder utility functions
  *
  * copyright (c) 2013 Yukinori Yamazoe
  *

  * This file is part of FFmpeg.

  *

  * FFmpeg is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *

  * FFmpeg is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public

  * License along with FFmpeg; if not, write to the Free Software

  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef AVCODEC_QSVENC_H
 #define AVCODEC_QSVENC_H
 
 #include <stdint.h>
 #include <sys/types.h>
 
 #include <mfx/mfxvideo.h>
 
 #include "libavutil/avutil.h"

 #include "libavutil/fifo.h"

 
 #include "avcodec.h"
 #include "qsv_internal.h"
 

 #define QSV_HAVE_CO2 QSV_VERSION_ATLEAST(1, 6)
 #define QSV_HAVE_CO3 QSV_VERSION_ATLEAST(1, 11)
 
 #define QSV_HAVE_TRELLIS QSV_VERSION_ATLEAST(1, 8)

 #define QSV_HAVE_MAX_SLICE_SIZE QSV_VERSION_ATLEAST(1, 9)
 #define QSV_HAVE_BREF_TYPE      QSV_VERSION_ATLEAST(1, 8)

 
 #define QSV_HAVE_LA     QSV_VERSION_ATLEAST(1, 7)

 #define QSV_HAVE_LA_DS  QSV_VERSION_ATLEAST(1, 8)

 #define QSV_HAVE_LA_HRD QSV_VERSION_ATLEAST(1, 11)
 #define QSV_HAVE_ICQ    QSV_VERSION_ATLEAST(1, 8)
 #define QSV_HAVE_VCM    QSV_VERSION_ATLEAST(1, 8)
 #define QSV_HAVE_QVBR   QSV_VERSION_ATLEAST(1, 11)
 

 #define QSV_COMMON_OPTS \

 { "async_depth", "Maximum processing parallelism", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VE },                          \
 { "avbr_accuracy",    "Accuracy of the AVBR ratecontrol",    OFFSET(qsv.avbr_accuracy),    AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },                             \
 { "avbr_convergence", "Convergence of the AVBR ratecontrol", OFFSET(qsv.avbr_convergence), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },                             \
 { "preset", NULL, OFFSET(qsv.preset), AV_OPT_TYPE_INT, { .i64 = MFX_TARGETUSAGE_BALANCED }, MFX_TARGETUSAGE_BEST_QUALITY, MFX_TARGETUSAGE_BEST_SPEED,   VE, "preset" }, \
 { "veryfast",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_SPEED  },   INT_MIN, INT_MAX, VE, "preset" },                                                \
 { "faster",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_6  },            INT_MIN, INT_MAX, VE, "preset" },                                                \
 { "fast",        NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_5  },            INT_MIN, INT_MAX, VE, "preset" },                                                \
 { "medium",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BALANCED  },     INT_MIN, INT_MAX, VE, "preset" },                                                \
 { "slow",        NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_3  },            INT_MIN, INT_MAX, VE, "preset" },                                                \
 { "slower",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_2  },            INT_MIN, INT_MAX, VE, "preset" },                                                \
 { "veryslow",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_QUALITY  }, INT_MIN, INT_MAX, VE, "preset" },                                                \

 { "vcm",      "Use the video conferencing mode ratecontrol",  OFFSET(qsv.vcm),      AV_OPT_TYPE_INT, { .i64 = 0  },  0, 1,         VE },                                \

 { "rdo",            "Enable rate distortion optimization",    OFFSET(qsv.rdo),            AV_OPT_TYPE_INT, { .i64 = -1 }, -1,          1, VE },                         \
 { "max_frame_size", "Maximum encoded frame size in bytes",    OFFSET(qsv.max_frame_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE },                         \
 { "max_slice_size", "Maximum encoded slice size in bytes",    OFFSET(qsv.max_slice_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE },                         \
 { "bitrate_limit",  "Toggle bitrate limitations",             OFFSET(qsv.bitrate_limit),  AV_OPT_TYPE_INT, { .i64 = -1 }, -1,          1, VE },                         \
 { "mbbrc",          "MB level bitrate control",               OFFSET(qsv.mbbrc),          AV_OPT_TYPE_INT, { .i64 = -1 }, -1,          1, VE },                         \
 { "extbrc",         "Extended bitrate control",               OFFSET(qsv.extbrc),         AV_OPT_TYPE_INT, { .i64 = -1 }, -1,          1, VE },                         \
 { "adaptive_i",     "Adaptive I-frame placement",             OFFSET(qsv.adaptive_i),     AV_OPT_TYPE_INT, { .i64 = -1 }, -1,          1, VE },                         \
 { "adaptive_b",     "Adaptive B-frame placement",             OFFSET(qsv.adaptive_b),     AV_OPT_TYPE_INT, { .i64 = -1 }, -1,          1, VE },                         \

 { "b_strategy",     "Strategy to choose between I/P/B-frames", OFFSET(qsv.b_strategy),    AV_OPT_TYPE_INT, { .i64 = -1 }, -1,          1, VE },                         \

 typedef int SetEncodeCtrlCB (AVCodecContext *avctx,
                              const AVFrame *frame, mfxEncodeCtrl* enc_ctrl);

 typedef struct QSVEncContext {
     AVCodecContext *avctx;
 
     QSVFrame *work_frames;
 
     mfxSession session;

     mfxSession internal_session;

 
     int packet_size;

     int width_align;

     int height_align;

 
     mfxVideoParam param;
     mfxFrameAllocRequest req;
 
     mfxExtCodingOption  extco;

 #if QSV_HAVE_CO2

     mfxExtCodingOption2 extco2;
 #endif

 
     mfxExtOpaqueSurfaceAlloc opaque_alloc;
     mfxFrameSurface1       **opaque_surfaces;
     AVBufferRef             *opaque_alloc_buf;
 

     mfxExtBuffer  *extparam_internal[2 + QSV_HAVE_CO2];

     int         nb_extparam_internal;
 

     mfxExtBuffer **extparam;

     AVFifoBuffer *async_fifo;
 

     QSVFramesContext frames_ctx;
 

     // options set by the caller
     int async_depth;
     int idr_interval;
     int profile;
     int preset;
     int avbr_accuracy;
     int avbr_convergence;

     int pic_timing_sei;

     int look_ahead;
     int look_ahead_depth;
     int look_ahead_downsampling;

     int vcm;

     int rdo;
     int max_frame_size;
     int max_slice_size;
 
     int single_sei_nal_unit;
     int max_dec_frame_buffering;
     int trellis;
 
     int bitrate_limit;
     int mbbrc;
     int extbrc;
     int adaptive_i;
     int adaptive_b;

     int b_strategy;

     int cavlc;

 
     int int_ref_type;
     int int_ref_cycle_size;
     int int_ref_qp_delta;
     int recovery_point_sei;

     int a53_cc;

     char *load_plugins;

     SetEncodeCtrlCB *set_encode_ctrl_cb;

 } QSVEncContext;
 
 int ff_qsv_enc_init(AVCodecContext *avctx, QSVEncContext *q);
 
 int ff_qsv_encode(AVCodecContext *avctx, QSVEncContext *q,
                   AVPacket *pkt, const AVFrame *frame, int *got_packet);
 
 int ff_qsv_enc_close(AVCodecContext *avctx, QSVEncContext *q);
 
 #endif /* AVCODEC_QSVENC_H */