//go:build cgo && !disable_library_libaom

package libaom

/*
#cgo pkg-config: aom
#include "libaom.h"
*/
import "C"
import (
	"errors"
	"fmt"
	"git.gammaspectra.live/S.O.N.G/Ignite/color"
	"git.gammaspectra.live/S.O.N.G/Ignite/frame"
	"git.gammaspectra.live/S.O.N.G/Ignite/utilities"
	"git.gammaspectra.live/S.O.N.G/Ignite/utilities/filmgrain"
	"git.gammaspectra.live/S.O.N.G/Ignite/utilities/obuwriter"
	"golang.org/x/exp/constraints"
	"io"
	"log"
	"maps"
	"os"
	"runtime"
	"strconv"
	"strings"
	"sync/atomic"
	"unsafe"
)

type Encoder struct {
	w                   *obuwriter.Writer
	cleaned             atomic.Bool
	cfg                 C.aom_codec_enc_cfg_t
	codec               C.aom_codec_ctx_t
	raw                 *C.aom_image_t
	rawBuffer           []byte
	framesIn, framesOut int
	frameStatistics     frame.FrameStatistics
	resourcePinner      runtime.Pinner
	logger              utilities.Logger
	free                []func()
}

var libaomVersion = "libaom-av1 " + C.GoString(C.aom_codec_version_str()) + " ABI " + strconv.FormatUint(C.AOM_ENCODER_ABI_VERSION, 10)

func Version() string {
	return libaomVersion
}

const (
	UsageGoodQuality = C.AOM_USAGE_GOOD_QUALITY
	UsageRealtime    = C.AOM_USAGE_REALTIME
	UsageAllIntra    = C.AOM_USAGE_ALL_INTRA
)

func NewEncoder(w io.Writer, properties frame.StreamProperties, settings map[string]any, logger utilities.Logger) (*Encoder, error) {
	e := &Encoder{
		frameStatistics: make(frame.FrameStatistics),
		logger:          logger,
	}

	clonedSettings := make(map[string]any)

	if modelPath := os.Getenv("VMAF_MODEL_PATH"); modelPath != "" {
		clonedSettings["vmaf-model-path"] = modelPath
	}

	maps.Copy(clonedSettings, settings)

	photonNoiseIso := getSettingUnsigned[uint](clonedSettings, "photon-noise-iso", 0)
	photonNoiseTransferFunction := filmgrain.GetTransferFunction(getSettingString(clonedSettings, "photon-noise-transfer", "bt709"))

	if photonNoiseIso > 0 && photonNoiseTransferFunction != nil {
		//create table
		noiseWidth := getSettingUnsigned[uint](clonedSettings, "photon-noise-width", uint(properties.Width))
		noiseHeight := getSettingUnsigned[uint](clonedSettings, "photon-noise-height", uint(properties.Height))
		table, err := filmgrain.CreatePhotonNoiseTable(int(noiseWidth), int(noiseHeight), float64(photonNoiseIso), photonNoiseTransferFunction)
		if err != nil {
			return nil, err
		}

		tmpFile, err := os.CreateTemp(os.TempDir(), "photon-table*.tbl")
		if err != nil {
			return nil, err
		}
		_, err = tmpFile.Write(table)
		if err != nil {
			return nil, err
		}
		tmpName := tmpFile.Name()
		tmpFile.Close()
		e.free = append(e.free, func() {
			os.Remove(tmpName)
		})
		clonedSettings["film-grain-table"] = tmpName

	}

	var aomErr C.aom_codec_err_t

	encoder := C.aom_codec_av1_cx()
	if encoder == nil {
		return nil, errors.New("unsupported codec")
	}

	e.cfg.g_usage = C.uint(getSettingUnsigned(clonedSettings, "usage", uint(UsageGoodQuality)))

	if getSettingBool(clonedSettings, "good", false) {
		e.cfg.g_usage = UsageGoodQuality
	}
	if getSettingBool(clonedSettings, "rt", false) {
		e.cfg.g_usage = UsageRealtime
	}
	if getSettingBool(clonedSettings, "allintra", false) {
		e.cfg.g_usage = UsageAllIntra
	}

	var imageFormat C.aom_img_fmt_t
	var flags C.aom_codec_flags_t

	if aomErr = C.aom_codec_enc_config_default(encoder, &e.cfg, e.cfg.g_usage); aomErr != 0 {
		return nil, errors.New("failed to get default codec config")
	}

	var bitsPerSample, decH, decV C.int

	switch true {
	case properties.ColorSpace.ChromaSampling.J == 4 && properties.ColorSpace.ChromaSampling.A == 4 && properties.ColorSpace.ChromaSampling.B == 4:
		imageFormat = C.AOM_IMG_FMT_I444
		e.cfg.g_profile = 1
		switch properties.ColorSpace.BitDepth {
		case C.AOM_BITS_8:
			bitsPerSample = 24
		case C.AOM_BITS_10:
			bitsPerSample = 30
		case C.AOM_BITS_12:
			bitsPerSample = 36
		}
		decH = 1
		decV = 1
	case properties.ColorSpace.ChromaSampling.J == 4 && properties.ColorSpace.ChromaSampling.A == 2 && properties.ColorSpace.ChromaSampling.B == 2:
		imageFormat = C.AOM_IMG_FMT_I422
		e.cfg.g_profile = 2
		switch properties.ColorSpace.BitDepth {
		case C.AOM_BITS_8:
			bitsPerSample = 16
		case C.AOM_BITS_10:
			bitsPerSample = 20
		case C.AOM_BITS_12:
			bitsPerSample = 24
		}
		decH = 2
		decV = 1
	case properties.ColorSpace.ChromaSampling.J == 4 && properties.ColorSpace.ChromaSampling.A == 2 && properties.ColorSpace.ChromaSampling.B == 0:
		imageFormat = C.AOM_IMG_FMT_I420
		e.cfg.g_profile = 0
		switch properties.ColorSpace.BitDepth {
		case C.AOM_BITS_8:
			bitsPerSample = 12
		case C.AOM_BITS_10:
			bitsPerSample = 15
		case C.AOM_BITS_12:
			bitsPerSample = 18
		}
		decH = 2
		decV = 2
	case properties.ColorSpace.ChromaSampling.J == 4 && properties.ColorSpace.ChromaSampling.A == 0 && properties.ColorSpace.ChromaSampling.B == 0:
		//mono is defined as 4:2:0, but monochrome is set on config
		imageFormat = C.AOM_IMG_FMT_I420
		e.cfg.g_profile = 0
		e.cfg.monochrome = 1
		bitsPerSample = C.int(properties.ColorSpace.BitDepth)
		decH = 0
		decV = 2
	default:
		return nil, errors.New("unsupported input chroma subsampling")

	}

	e.cfg.g_input_bit_depth = C.uint(properties.ColorSpace.BitDepth)
	e.cfg.g_bit_depth = C.aom_bit_depth_t(properties.ColorSpace.BitDepth)

	if e.cfg.g_bit_depth >= C.AOM_BITS_12 { //only bitdepths up to 12 are supported, see aom_bit_depth_t
		e.cfg.g_bit_depth = C.AOM_BITS_12
		e.cfg.g_profile = 2
	}

	if e.cfg.g_input_bit_depth > C.AOM_BITS_8 {
		imageFormat |= C.AOM_IMG_FMT_HIGHBITDEPTH
	}
	if e.cfg.g_bit_depth > C.AOM_BITS_8 {
		flags |= C.AOM_CODEC_USE_HIGHBITDEPTH
	}

	frameSize, err := properties.ColorSpace.FrameSize(properties.Width, properties.Height)
	if err != nil {
		return nil, err
	}

	bytesPerSample := 1
	if properties.ColorSpace.BitDepth > C.AOM_BITS_8 {
		bytesPerSample = 2
	}

	e.raw = &C.aom_image_t{}

	e.raw.bit_depth = C.uint(properties.ColorSpace.BitDepth)
	//todo: color primaries
	e.raw.cp = C.AOM_CICP_CP_UNSPECIFIED
	//todo: transfer characteristics
	e.raw.tc = C.AOM_CICP_TC_UNSPECIFIED
	//todo: matrix coefficients
	e.raw.mc = C.AOM_CICP_MC_UNSPECIFIED
	e.raw.monochrome = C.int(e.cfg.monochrome)
	e.raw.fmt = imageFormat

	switch properties.ColorSpace.ChromaSamplePosition {
	case color.ChromaSamplePositionLeft:
		e.raw.csp = C.AOM_CSP_VERTICAL
	case color.ChromaSamplePositionCenter:
		e.raw.csp = C.AOM_CSP_UNKNOWN
	case color.ChromaSamplePositionTopLeft:
		e.raw.csp = C.AOM_CSP_COLOCATED
	default:
		e.raw.csp = C.AOM_CSP_UNKNOWN
	}

	if properties.FullColorRange {
		e.raw._range = C.AOM_CR_FULL_RANGE
	} else {
		e.raw._range = C.AOM_CR_STUDIO_RANGE
	}

	e.cfg.g_w = C.uint(properties.Width)
	e.cfg.g_h = C.uint(properties.Height)

	e.raw.w = e.cfg.g_w
	e.raw.d_w = e.cfg.g_w
	e.raw.h = e.cfg.g_h
	e.raw.d_h = e.cfg.g_h
	e.raw.bps = bitsPerSample
	e.raw.x_chroma_shift = C.uint(decH >> 1)
	e.raw.y_chroma_shift = C.uint(decV >> 1)

	c_w := (C.int(properties.Width) + decH - 1) / decH
	c_w *= C.int(bytesPerSample)

	e.rawBuffer = make([]byte, frameSize)
	e.resourcePinner.Pin(e.raw)
	e.resourcePinner.Pin(unsafe.SliceData(e.rawBuffer))

	iY := properties.ColorSpace.ChromaSampling.PlaneLumaSamples(properties.Width, properties.Height)
	iCb := properties.ColorSpace.ChromaSampling.PlaneCbSamples(properties.Width, properties.Height)
	iCr := properties.ColorSpace.ChromaSampling.PlaneCrSamples(properties.Width, properties.Height)

	iY *= bytesPerSample
	iCb *= bytesPerSample
	iCr *= bytesPerSample

	e.raw.stride[C.AOM_PLANE_Y] = C.int(properties.Width * bytesPerSample)
	e.raw.stride[C.AOM_PLANE_U] = c_w
	e.raw.stride[C.AOM_PLANE_V] = e.raw.stride[C.AOM_PLANE_U]

	e.raw.planes[C.AOM_PLANE_Y] = (*C.uchar)(unsafe.Pointer(unsafe.SliceData(e.rawBuffer[:iY])))
	e.raw.planes[C.AOM_PLANE_U] = (*C.uchar)(unsafe.Pointer(unsafe.SliceData(e.rawBuffer[iY : iY+iCb])))
	e.raw.planes[C.AOM_PLANE_V] = (*C.uchar)(unsafe.Pointer(unsafe.SliceData(e.rawBuffer[iY+iCb : iY+iCb+iCr])))

	runtime.SetFinalizer(e, func(encoder *Encoder) {
		encoder.Close()
	})

	/*!\brief Stream timebase units
	 *
	 * Indicates the smallest interval of time, in seconds, used by the stream.
	 * For fixed frame rate material, or variable frame rate material where
	 * frames are timed at a multiple of a given clock (ex: video capture),
	 * the \ref RECOMMENDED method is to set the timebase to the reciprocal
	 * of the frame rate (ex: 1001/30000 for 29.970 Hz NTSC). This allows the
	 * pts to correspond to the frame number, which can be handy. For
	 * re-encoding video from containers with absolute time timestamps, the
	 * \ref RECOMMENDED method is to set the timebase to that of the parent
	 * container or multimedia framework (ex: 1/1000 for ms, as in FLV).
	 */
	timeBase := properties.TimeBase()

	e.cfg.g_timebase.num = C.int(timeBase.Numerator)
	e.cfg.g_timebase.den = C.int(timeBase.Denominator)

	// boolean settings

	if getSettingBool(clonedSettings, "large-scale-tile", e.cfg.large_scale_tile != 0) {
		e.cfg.large_scale_tile = 1
	}
	if getSettingBool(clonedSettings, "monochrome", e.cfg.monochrome != 0) {
		e.cfg.monochrome = 1
	}
	if getSettingBool(clonedSettings, "enable-fwd-kf", e.cfg.fwd_kf_enabled != 0) {
		e.cfg.fwd_kf_enabled = 1
	}

	if getSettingBool(clonedSettings, "kf-disabled", false) {
		e.cfg.kf_mode = C.AOM_KF_DISABLED
	}

	// integer settings

	type uintSettingPair struct {
		p *C.uint
		n string
	}

	for _, s := range []uintSettingPair{
		{&e.cfg.g_threads, "threads"},

		{&e.cfg.g_lag_in_frames, "lag-in-frames"},

		{&e.cfg.g_forced_max_frame_width, "forced_max_frame_width"},
		{&e.cfg.g_forced_max_frame_height, "forced_max_frame_height"},

		{&e.cfg.rc_dropframe_thresh, "drop-frame"},
		{&e.cfg.rc_resize_mode, "resize-mode"},
		{&e.cfg.rc_resize_denominator, "resize-denominator"},
		{&e.cfg.rc_resize_kf_denominator, "resize-kf-denominator"},

		{(*C.uint)(&e.cfg.rc_superres_mode), "superres-mode"},
		{&e.cfg.rc_superres_denominator, "superres-denominator"},

		{&e.cfg.rc_superres_kf_denominator, "superres-kf-denominator"},

		{&e.cfg.rc_superres_qthresh, "superres-qthresh"},
		{&e.cfg.rc_superres_kf_qthresh, "superres-kf-qthresh"},

		{&e.cfg.rc_target_bitrate, "target-bitrate"},
		{&e.cfg.rc_min_quantizer, "min-q"},
		{&e.cfg.rc_max_quantizer, "max-q"},
		{&e.cfg.rc_undershoot_pct, "undershoot-pct"},
		{&e.cfg.rc_overshoot_pct, "overshoot-pct"},
		{&e.cfg.rc_buf_sz, "buf-sz"},
		{&e.cfg.rc_buf_initial_sz, "buf-initial-sz"},
		{&e.cfg.rc_buf_optimal_sz, "buf-optimal-sz"},
		//{&e.cfg.rc_2pass_vbr_bias_pct, "bias-pct"},
		//{&e.cfg.rc_2pass_vbr_minsection_pct, "minsection-pct"},
		//{&e.cfg.rc_2pass_vbr_maxsection_pct, "maxsection-pct"},

		{&e.cfg.kf_min_dist, "kf-min-dist"},
		{&e.cfg.kf_max_dist, "kf-max-dist"},
		{&e.cfg.sframe_dist, "sframe-dist"},
		{&e.cfg.sframe_mode, "sframe-mode"},

		{&e.cfg.use_fixed_qp_offsets, "use-fixed-qp-offsets"},
	} {
		//todo: unset setting from map
		*s.p = C.uint(getSettingUnsigned(clonedSettings, s.n, uint(*s.p)))
	}

	// string/enum settings

	endUsage := getSettingString(clonedSettings, "end-usage", "vbr")

	switch endUsage {
	case "vbr":
		e.cfg.rc_end_usage = C.AOM_VBR
	case "cbr":
		e.cfg.rc_end_usage = C.AOM_CBR
	case "cq":
		e.cfg.rc_end_usage = C.AOM_CQ
	case "q":
		e.cfg.rc_end_usage = C.AOM_Q
	default:
		return nil, errors.New("unknown end-usage setting: " + endUsage)
	}

	//TODO: find all settings not set on AV1 encoder and place them on e.cfg

	if aomErr = C.aom_codec_enc_init_ver(&e.codec, encoder, &e.cfg, flags, C.AOM_ENCODER_ABI_VERSION); aomErr != 0 {
		return nil, fmt.Errorf("failed to initialize encoder: err %d %s", aomErr, C.GoString(e.codec.err_detail))
	}
	e.free = append(e.free, func() {
		C.aom_codec_destroy(&e.codec)
	})

	if properties.FullColorRange {
		if aomErr = C.aom_codec_control_uint(&e.codec, C.AV1E_SET_COLOR_RANGE, C.AOM_CR_FULL_RANGE); aomErr != 0 {
			return nil, fmt.Errorf("failed to set color range")
		}
	} else {
		if aomErr = C.aom_codec_control_uint(&e.codec, C.AV1E_SET_COLOR_RANGE, C.AOM_CR_STUDIO_RANGE); aomErr != 0 {
			return nil, fmt.Errorf("failed to set color range")
		}
	}

	//??? aomenc does this
	if properties.ColorSpace.BitDepth == 12 {
		if aomErr = C.aom_codec_control_uint(&e.codec, C.AV1E_SET_CHROMA_SUBSAMPLING_X, C.uint(decH>>1)); aomErr != 0 {
			return nil, fmt.Errorf("failed to set chroma subsampling X")
		}
		if aomErr = C.aom_codec_control_uint(&e.codec, C.AV1E_SET_CHROMA_SUBSAMPLING_Y, C.uint(decV>>1)); aomErr != 0 {
			return nil, fmt.Errorf("failed to set chroma subsampling Y")
		}
	}

	//TODO: fill all
	controlSettings := map[string]C.int{
		"cpu-used":     C.AOME_SET_CPUUSED,
		"auto-alt-ref": C.AOME_SET_ENABLEAUTOALTREF,
		"sharpness":    C.AOME_SET_SHARPNESS,
		"row-mt":       C.AV1E_SET_ROW_MT,
		//"fp-mt": C.AV1E_SET_FP_MT,
		"tile-columns":         C.AV1E_SET_TILE_COLUMNS,
		"tile-rows":            C.AV1E_SET_TILE_ROWS,
		"cq-level":             C.AOME_SET_CQ_LEVEL,
		"max-reference-frames": C.AV1E_SET_MAX_REFERENCE_FRAMES,
	}

	for key, controlKey := range controlSettings {
		if _, ok := clonedSettings[key]; ok {
			val := getSettingUnsigned[uint](clonedSettings, key, 0)
			if aomErr = C.aom_codec_control_uint(&e.codec, controlKey, C.uint(val)); aomErr != 0 {
				return nil, fmt.Errorf("error setting parameter %s: %s", key, C.GoString(C.aom_codec_error_detail(&e.codec)))
			}
		}
	}

	if fgt := getSettingString(clonedSettings, "film-grain-table", ""); fgt != "" {
		strVal := C.CString(fgt)
		defer C.free(unsafe.Pointer(strVal))
		if aomErr = C.aom_codec_control_charptr(&e.codec, C.AV1E_SET_FILM_GRAIN_TABLE, strVal); aomErr != 0 {
			return nil, fmt.Errorf("error setting FILM_GRAIN_TABLE parameter: %s", C.GoString(C.aom_codec_error_detail(&e.codec)))
		}
	}

	for k, v := range clonedSettings {
		if err := func() error {
			var strVal *C.char
			if val, ok := v.(string); ok {
				strVal = C.CString(val)
			} else if val, ok := v.(int); ok {
				strVal = C.CString(strconv.FormatInt(int64(val), 10))
			} else if val, ok := v.(int64); ok {
				strVal = C.CString(strconv.FormatInt(val, 10))
			} else if val, ok := v.(uint); ok {
				strVal = C.CString(strconv.FormatUint(uint64(val), 10))
			} else if val, ok := v.(uint64); ok {
				strVal = C.CString(strconv.FormatUint(val, 10))
			} else if val, ok := v.(bool); ok {
				if val {
					strVal = C.CString("1")
				} else {
					strVal = C.CString("0")
				}
			}

			if strVal != nil {
				defer C.free(unsafe.Pointer(strVal))
			} else {
				return fmt.Errorf("could not get parameter %s", k)
			}
			strKey := C.CString(k)
			defer C.free(unsafe.Pointer(strKey))
			if ret := C.aom_codec_set_option(&e.codec, strKey, strVal); ret != 0 {
				if ret == C.AOM_CODEC_INVALID_PARAM {
					return fmt.Errorf("bad parameter value %s for %s: %s", C.GoString(strVal), k, C.GoString(C.aom_codec_error_detail(&e.codec)))
				} else if ret == C.AOM_CODEC_ERROR {
					return fmt.Errorf("error setting parameter %s: %s", k, C.GoString(C.aom_codec_error_detail(&e.codec)))
				} else {
					return fmt.Errorf("error setting parameter %s: %s", k, C.GoString(C.aom_codec_error_detail(&e.codec)))
				}
			}

			return nil
		}(); err != nil {
			return nil, err
		}
	}

	if e.w, err = obuwriter.NewWriter(w, properties.Width, properties.Height, 0x31305641, timeBase); err != nil {
		return nil, err
	}

	return e, nil
}

func (e *Encoder) EncodeStream(stream *frame.Stream) error {
	for f := range stream.Channel() {
		if err := e.Encode(f); err != nil {
			return err
		}
	}
	return e.Flush()
}

func (e *Encoder) Encode(f frame.Frame) error {
	/*luma := f.GetLuma()
	cb := f.GetCb()
	cr := f.GetCr()
	copy(unsafe.Slice((*byte)(e.raw.planes[C.AOM_PLANE_Y]), len(luma)), luma)
	copy(unsafe.Slice((*byte)(e.raw.planes[C.AOM_PLANE_U]), len(cb)), cb)
	copy(unsafe.Slice((*byte)(e.raw.planes[C.AOM_PLANE_V]), len(cr)), cr)
	*/
	copy(e.rawBuffer, f.GetJoint())

	if _, err := e.encodeFrame(f.PTS(), f.NextPTS(), e.raw); err != nil {
		return err
	}
	runtime.KeepAlive(f)

	return nil
}

func (e *Encoder) encodeFrame(pts, nextPts int64, raw *C.aom_image_t) (pkts int, err error) {
	var aomErr C.aom_codec_err_t

	if aomErr = C.aom_codec_encode(&e.codec, raw, C.long(pts), C.ulong(nextPts-pts), 0); aomErr != C.AOM_CODEC_OK {
		if aomErr == C.AOM_CODEC_INCAPABLE {
			return 0, errors.New("error encoding frame: AOM_CODEC_INCAPABLE")
		} else if aomErr == C.AOM_CODEC_INVALID_PARAM {
			return 0, errors.New("error encoding frame: AOM_CODEC_INVALID_PARAM")
		} else if aomErr == C.AOM_CODEC_ERROR {
			return 0, errors.New("error encoding frame: AOM_CODEC_ERROR")
		} else {
			return 0, errors.New("error encoding frame")
		}
	}

	if raw != nil {
		e.framesIn++
	}

	var quant64 C.int
	if e.framesIn >= int(e.cfg.g_lag_in_frames) {
		//TODO: maybe call this on new packets?
		if aomErr = C.aom_codec_control_intptr(&e.codec, C.AOME_GET_LAST_QUANTIZER_64, &quant64); aomErr != C.AOM_CODEC_OK {
			return 0, errors.New("error getting LAST_QUANTIZER_64")
		}
	}

	var iter C.aom_codec_iter_t

	for {
		pkt := C.aom_codec_get_cx_data(&e.codec, &iter)
		if pkt == nil {
			break
		}
		pkts++

		if pkt.kind == C.AOM_CODEC_CX_FRAME_PKT {
			partitionId := int(C.aom_get_pkt_partition_id(pkt))
			if partitionId > 0 {
				return 0, errors.New("partition id not supported")
			}
			packetPts := uint64(C.aom_get_pkt_pts(pkt))
			buf := unsafe.Slice((*byte)(C.aom_get_pkt_buf(pkt)), int(C.aom_get_pkt_sz(pkt)))
			flags := C.aom_get_pkt_flags(pkt)

			e.frameStatistics[frame.FrameStatisticsKeyNumber] = e.framesOut
			e.frameStatistics[frame.FrameStatisticsKeyPts] = int64(packetPts)
			e.frameStatistics[frame.FrameStatisticsKeyQuantizer] = int(quant64)
			e.frameStatistics[frame.FrameStatisticsKeySize] = len(buf)
			e.frameStatistics[frame.FrameStatisticsKeyIsKeyFrame] = false
			e.frameStatistics[frame.FrameStatisticsKeyIsIntraFrame] = false

			var flagStr []string
			if flags&C.AOM_FRAME_IS_KEY > 0 {
				e.frameStatistics[frame.FrameStatisticsKeyIsKeyFrame] = true
				flagStr = append(flagStr, "K-Frame")
			}
			if flags&C.AOM_FRAME_IS_DROPPABLE > 0 {
				flagStr = append(flagStr, "droppable")
			}
			if flags&C.AOM_FRAME_IS_INTRAONLY > 0 {
				e.frameStatistics[frame.FrameStatisticsKeyIsIntraFrame] = true
				flagStr = append(flagStr, "I-Frame")
			}
			if flags&C.AOM_FRAME_IS_SWITCH > 0 {
				flagStr = append(flagStr, "S-Frame")
			}
			if flags&C.AOM_FRAME_IS_ERROR_RESILIENT > 0 {
				flagStr = append(flagStr, "resilient")
			}
			if flags&C.AOM_FRAME_IS_DELAYED_RANDOM_ACCESS_POINT > 0 {
				//Forward keyframe
				e.frameStatistics[frame.FrameStatisticsKeyIsKeyFrame] = true
				flagStr = append(flagStr, "delayedrandom")
			}

			e.logger.Printf("libaom: partition = %d, n = %d, pts = %d, quant64 = %d, bytes = %d, flags = %s", partitionId, e.framesOut, packetPts, quant64, len(buf), strings.Join(flagStr, ", "))
			if err = e.w.WriteFrameBytes(packetPts, buf); err != nil {
				return pkts, err
			}

			e.framesOut++
			runtime.KeepAlive(buf)
		} else {

			log.Printf("kind %d", pkt.kind)
		}
	}

	return pkts, nil
}

func (e *Encoder) Statistics() frame.Statistics {
	if len(e.frameStatistics) > 0 {
		return frame.Statistics{
			frame.StatisticsKeyFramesIn:     e.framesIn,
			frame.StatisticsKeyFramesOut:    e.framesOut,
			frame.StatisticsKeyLastFrameOut: maps.Clone(e.frameStatistics),
		}
	} else {
		return frame.Statistics{
			frame.StatisticsKeyFramesIn:  e.framesIn,
			frame.StatisticsKeyFramesOut: e.framesOut,
		}
	}
}

func (e *Encoder) Flush() error {

	var pkts int
	var err error
	for {
		if pkts, err = e.encodeFrame(-1, 0, nil); err != nil {
			return err
		}
		if pkts == 0 {
			break
		}
	}

	_ = e.w.WriteLength(uint32(e.framesIn))

	return nil
}

func (e *Encoder) Close() {
	if e.cleaned.Swap(true) == false {
		e.resourcePinner.Unpin()
		if e.raw != nil {
			e.raw = nil
		}
		if e.rawBuffer != nil {
			e.rawBuffer = nil
		}
		C.aom_codec_destroy(&e.codec)
	}
}

func (e *Encoder) Version() string {
	return Version()
}

func getSettingBool(m map[string]any, name string, fallback bool) bool {
	if v, ok := m[name]; ok {
		if val, ok := v.(string); ok {
			delete(m, name)
			return val == "false" || val == "f" || val == "n"
		}
		if val, ok := v.(int); ok {
			delete(m, name)
			return val != 0
		}
		if val, ok := v.(int64); ok {
			delete(m, name)
			return val != 0
		}
		if val, ok := v.(uint); ok {
			delete(m, name)
			return val != 0
		}
		if val, ok := v.(uint64); ok {
			delete(m, name)
			return val != 0
		}

		return true
	}
	return fallback
}

func getSettingString(m map[string]any, name string, fallback string) string {
	if v, ok := m[name]; ok {
		if val, ok := v.(string); ok {
			delete(m, name)
			return val
		}
		if val, ok := v.(int); ok {
			delete(m, name)
			return strconv.FormatInt(int64(val), 10)
		}
		if val, ok := v.(int64); ok {
			delete(m, name)
			return strconv.FormatInt(val, 10)
		}
		if val, ok := v.(uint); ok {
			delete(m, name)
			return strconv.FormatUint(uint64(val), 10)
		}
		if val, ok := v.(uint64); ok {
			delete(m, name)
			return strconv.FormatUint(val, 10)
		}
		if val, ok := v.(bool); ok {
			delete(m, name)
			if val {
				return "1"
			} else {
				return "0"
			}
		}
	}
	return fallback
}

func getSettingUnsigned[T constraints.Unsigned](m map[string]any, name string, fallback T) T {
	if v, ok := m[name]; ok {
		if val, ok := v.(string); ok {
			if intVal, err := strconv.ParseUint(val, 10, 0); err != nil {
				delete(m, name)
				return T(intVal)
			} else {
				return fallback
			}
		}
		if val, ok := v.(int); ok {
			delete(m, name)
			return T(val)
		}
		if val, ok := v.(int64); ok {
			delete(m, name)
			return T(val)
		}
		if val, ok := v.(uint); ok {
			delete(m, name)
			return T(val)
		}
		if val, ok := v.(uint64); ok {
			delete(m, name)
			return T(val)
		}
		if val, ok := v.(C.int); ok {
			delete(m, name)
			return T(val)
		}
		if val, ok := v.(C.uint); ok {
			delete(m, name)
			return T(val)
		}
		if val, ok := v.(bool); ok {
			delete(m, name)
			if val {
				return 1
			} else {
				return 0
			}
		}
	}
	return fallback
}