libavcodec/proresenc_anatoliy.c - nest-android-app/ffmpeg - Git at Google

 /*
  * Apple ProRes encoder
  *
  * Copyright (c) 2011 Anatoliy Wasserman
  *
  * 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
  */

 /**
  * @file
  * Apple ProRes encoder (Anatoliy Wasserman version)
  * Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'acpo' (Proxy)
  */

 #include "avcodec.h"
 #include "dct.h"
 #include "internal.h"
 #include "put_bits.h"
 #include "bytestream.h"
 #include "fdctdsp.h"

 #define DEFAULT_SLICE_MB_WIDTH 8

 #define FF_PROFILE_PRORES_PROXY     0
 #define FF_PROFILE_PRORES_LT        1
 #define FF_PROFILE_PRORES_STANDARD  2
 #define FF_PROFILE_PRORES_HQ        3

 static const AVProfile profiles[] = {
     { FF_PROFILE_PRORES_PROXY,    "apco"},
     { FF_PROFILE_PRORES_LT,       "apcs"},
     { FF_PROFILE_PRORES_STANDARD, "apcn"},
     { FF_PROFILE_PRORES_HQ,       "apch"},
     { FF_PROFILE_UNKNOWN }
 };

 static const int qp_start_table[4] = { 4, 1, 1, 1 };
 static const int qp_end_table[4]   = { 8, 9, 6, 6 };
 static const int bitrate_table[5]  = { 1000, 2100, 3500, 5400 };

 static const uint8_t progressive_scan[64] = {
      0,  1,  8,  9,  2,  3, 10, 11,
     16, 17, 24, 25, 18, 19, 26, 27,
      4,  5, 12, 20, 13,  6,  7, 14,
     21, 28, 29, 22, 15, 23, 30, 31,
     32, 33, 40, 48, 41, 34, 35, 42,
     49, 56, 57, 50, 43, 36, 37, 44,
     51, 58, 59, 52, 45, 38, 39, 46,
     53, 60, 61, 54, 47, 55, 62, 63
 };

 static const uint8_t QMAT_LUMA[4][64] = {
     {
          4,  7,  9, 11, 13, 14, 15, 63,
          7,  7, 11, 12, 14, 15, 63, 63,
          9, 11, 13, 14, 15, 63, 63, 63,
         11, 11, 13, 14, 63, 63, 63, 63,
         11, 13, 14, 63, 63, 63, 63, 63,
         13, 14, 63, 63, 63, 63, 63, 63,
         13, 63, 63, 63, 63, 63, 63, 63,
         63, 63, 63, 63, 63, 63, 63, 63
     }, {
          4,  5,  6,  7,  9, 11, 13, 15,
          5,  5,  7,  8, 11, 13, 15, 17,
          6,  7,  9, 11, 13, 15, 15, 17,
          7,  7,  9, 11, 13, 15, 17, 19,
          7,  9, 11, 13, 14, 16, 19, 23,
          9, 11, 13, 14, 16, 19, 23, 29,
          9, 11, 13, 15, 17, 21, 28, 35,
         11, 13, 16, 17, 21, 28, 35, 41
     }, {
          4,  4,  5,  5,  6,  7,  7,  9,
          4,  4,  5,  6,  7,  7,  9,  9,
          5,  5,  6,  7,  7,  9,  9, 10,
          5,  5,  6,  7,  7,  9,  9, 10,
          5,  6,  7,  7,  8,  9, 10, 12,
          6,  7,  7,  8,  9, 10, 12, 15,
          6,  7,  7,  9, 10, 11, 14, 17,
          7,  7,  9, 10, 11, 14, 17, 21
     }, {
          4,  4,  4,  4,  4,  4,  4,  4,
          4,  4,  4,  4,  4,  4,  4,  4,
          4,  4,  4,  4,  4,  4,  4,  4,
          4,  4,  4,  4,  4,  4,  4,  5,
          4,  4,  4,  4,  4,  4,  5,  5,
          4,  4,  4,  4,  4,  5,  5,  6,
          4,  4,  4,  4,  5,  5,  6,  7,
          4,  4,  4,  4,  5,  6,  7,  7
     }
 };

 static const uint8_t QMAT_CHROMA[4][64] = {
     {
          4,  7,  9, 11, 13, 14, 63, 63,
          7,  7, 11, 12, 14, 63, 63, 63,
          9, 11, 13, 14, 63, 63, 63, 63,
         11, 11, 13, 14, 63, 63, 63, 63,
         11, 13, 14, 63, 63, 63, 63, 63,
         13, 14, 63, 63, 63, 63, 63, 63,
         13, 63, 63, 63, 63, 63, 63, 63,
         63, 63, 63, 63, 63, 63, 63, 63
     }, {
          4,  5,  6,  7,  9, 11, 13, 15,
          5,  5,  7,  8, 11, 13, 15, 17,
          6,  7,  9, 11, 13, 15, 15, 17,
          7,  7,  9, 11, 13, 15, 17, 19,
          7,  9, 11, 13, 14, 16, 19, 23,
          9, 11, 13, 14, 16, 19, 23, 29,
          9, 11, 13, 15, 17, 21, 28, 35,
         11, 13, 16, 17, 21, 28, 35, 41
     }, {
          4,  4,  5,  5,  6,  7,  7,  9,
          4,  4,  5,  6,  7,  7,  9,  9,
          5,  5,  6,  7,  7,  9,  9, 10,
          5,  5,  6,  7,  7,  9,  9, 10,
          5,  6,  7,  7,  8,  9, 10, 12,
          6,  7,  7,  8,  9, 10, 12, 15,
          6,  7,  7,  9, 10, 11, 14, 17,
          7,  7,  9, 10, 11, 14, 17, 21
     }, {
          4,  4,  4,  4,  4,  4,  4,  4,
          4,  4,  4,  4,  4,  4,  4,  4,
          4,  4,  4,  4,  4,  4,  4,  4,
          4,  4,  4,  4,  4,  4,  4,  5,
          4,  4,  4,  4,  4,  4,  5,  5,
          4,  4,  4,  4,  4,  5,  5,  6,
          4,  4,  4,  4,  5,  5,  6,  7,
          4,  4,  4,  4,  5,  6,  7,  7
     }
 };


 typedef struct {
     FDCTDSPContext fdsp;
     uint8_t* fill_y;
     uint8_t* fill_u;
     uint8_t* fill_v;

     int qmat_luma[16][64];
     int qmat_chroma[16][64];
 } ProresContext;

 static void encode_codeword(PutBitContext *pb, int val, int codebook)
 {
     unsigned int rice_order, exp_order, switch_bits, first_exp, exp, zeros;

     /* number of bits to switch between rice and exp golomb */
     switch_bits = codebook & 3;
     rice_order  = codebook >> 5;
     exp_order   = (codebook >> 2) & 7;

     first_exp = ((switch_bits + 1) << rice_order);

     if (val >= first_exp) { /* exp golomb */
         val -= first_exp;
         val += (1 << exp_order);
         exp = av_log2(val);
         zeros = exp - exp_order + switch_bits + 1;
         put_bits(pb, zeros, 0);
         put_bits(pb, exp + 1, val);
     } else if (rice_order) {
         put_bits(pb, (val >> rice_order), 0);
         put_bits(pb, 1, 1);
         put_sbits(pb, rice_order, val);
     } else {
         put_bits(pb, val, 0);
         put_bits(pb, 1, 1);
     }
 }

 #define QSCALE(qmat,ind,val) ((val) / ((qmat)[ind]))
 #define TO_GOLOMB(val) (((val) << 1) ^ ((val) >> 31))
 #define DIFF_SIGN(val, sign) (((val) >> 31) ^ (sign))
 #define IS_NEGATIVE(val) ((((val) >> 31) ^ -1) + 1)
 #define TO_GOLOMB2(val,sign) ((val)==0 ? 0 : ((val) << 1) + (sign))

 static av_always_inline int get_level(int val)
 {
     int sign = (val >> 31);
     return (val ^ sign) - sign;
 }

 #define FIRST_DC_CB 0xB8

 static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};

 static void encode_dc_coeffs(PutBitContext *pb, int16_t *in,
         int blocks_per_slice, int *qmat)
 {
     int prev_dc, code;
     int i, sign, idx;
     int new_dc, delta, diff_sign, new_code;

     prev_dc = QSCALE(qmat, 0, in[0] - 16384);
     code = TO_GOLOMB(prev_dc);
     encode_codeword(pb, code, FIRST_DC_CB);

     code = 5; sign = 0; idx = 64;
     for (i = 1; i < blocks_per_slice; i++, idx += 64) {
         new_dc    = QSCALE(qmat, 0, in[idx] - 16384);
         delta     = new_dc - prev_dc;
         diff_sign = DIFF_SIGN(delta, sign);
         new_code  = TO_GOLOMB2(get_level(delta), diff_sign);

         encode_codeword(pb, new_code, dc_codebook[FFMIN(code, 6)]);

         code      = new_code;
         sign      = delta >> 31;
         prev_dc   = new_dc;
     }
 }

 static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29,
         0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
 static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28,
         0x28, 0x28, 0x28, 0x4C };

 static void encode_ac_coeffs(AVCodecContext *avctx, PutBitContext *pb,
         int16_t *in, int blocks_per_slice, int *qmat)
 {
     int prev_run = 4;
     int prev_level = 2;

     int run = 0, level, code, i, j;
     for (i = 1; i < 64; i++) {
         int indp = progressive_scan[i];
         for (j = 0; j < blocks_per_slice; j++) {
             int val = QSCALE(qmat, indp, in[(j << 6) + indp]);
             if (val) {
                 encode_codeword(pb, run, run_to_cb[FFMIN(prev_run, 15)]);

                 prev_run   = run;
                 run        = 0;
                 level      = get_level(val);
                 code       = level - 1;

                 encode_codeword(pb, code, lev_to_cb[FFMIN(prev_level, 9)]);

                 prev_level = level;

                 put_bits(pb, 1, IS_NEGATIVE(val));
             } else {
                 ++run;
             }
         }
     }
 }

 static void get(uint8_t *pixels, int stride, int16_t* block)
 {
     int i;

     for (i = 0; i < 8; i++) {
         AV_WN64(block, AV_RN64(pixels));
         AV_WN64(block+4, AV_RN64(pixels+8));
         pixels += stride;
         block += 8;
     }
 }

 static void fdct_get(FDCTDSPContext *fdsp, uint8_t *pixels, int stride, int16_t* block)
 {
     get(pixels, stride, block);
     fdsp->fdct(block);
 }

 static int encode_slice_plane(AVCodecContext *avctx, int mb_count,
         uint8_t *src, int src_stride, uint8_t *buf, unsigned buf_size,
         int *qmat, int chroma)
 {
     ProresContext* ctx = avctx->priv_data;
     FDCTDSPContext *fdsp = &ctx->fdsp;
     LOCAL_ALIGNED(16, int16_t, blocks, [DEFAULT_SLICE_MB_WIDTH << 8]);
     int16_t *block;
     int i, blocks_per_slice;
     PutBitContext pb;

     block = blocks;
     for (i = 0; i < mb_count; i++) {
         fdct_get(fdsp, src,                  src_stride, block + (0 << 6));
         fdct_get(fdsp, src + 8 * src_stride, src_stride, block + ((2 - chroma) << 6));
         if (!chroma) {
             fdct_get(fdsp, src + 16,                  src_stride, block + (1 << 6));
             fdct_get(fdsp, src + 16 + 8 * src_stride, src_stride, block + (3 << 6));
         }

         block += (256 >> chroma);
         src   += (32  >> chroma);
     }

     blocks_per_slice = mb_count << (2 - chroma);
     init_put_bits(&pb, buf, buf_size);

     encode_dc_coeffs(&pb, blocks, blocks_per_slice, qmat);
     encode_ac_coeffs(avctx, &pb, blocks, blocks_per_slice, qmat);

     flush_put_bits(&pb);
     return put_bits_ptr(&pb) - pb.buf;
 }

 static av_always_inline unsigned encode_slice_data(AVCodecContext *avctx,
         uint8_t *dest_y, uint8_t *dest_u, uint8_t *dest_v, int luma_stride,
         int chroma_stride, unsigned mb_count, uint8_t *buf, unsigned data_size,
         unsigned* y_data_size, unsigned* u_data_size, unsigned* v_data_size,
         int qp)
 {
     ProresContext* ctx = avctx->priv_data;

     *y_data_size = encode_slice_plane(avctx, mb_count, dest_y, luma_stride,
             buf, data_size, ctx->qmat_luma[qp - 1], 0);

     if (!(avctx->flags & AV_CODEC_FLAG_GRAY)) {
         *u_data_size = encode_slice_plane(avctx, mb_count, dest_u,
                 chroma_stride, buf + *y_data_size, data_size - *y_data_size,
                 ctx->qmat_chroma[qp - 1], 1);

         *v_data_size = encode_slice_plane(avctx, mb_count, dest_v,
                 chroma_stride, buf + *y_data_size + *u_data_size,
                 data_size - *y_data_size - *u_data_size,
                 ctx->qmat_chroma[qp - 1], 1);
     }

     return *y_data_size + *u_data_size + *v_data_size;
 }

 static void subimage_with_fill(uint16_t *src, unsigned x, unsigned y,
         unsigned stride, unsigned width, unsigned height, uint16_t *dst,
         unsigned dst_width, unsigned dst_height)
 {

     int box_width = FFMIN(width - x, dst_width);
     int box_height = FFMIN(height - y, dst_height);
     int i, j, src_stride = stride >> 1;
     uint16_t last_pix, *last_line;

     src += y * src_stride + x;
     for (i = 0; i < box_height; ++i) {
         for (j = 0; j < box_width; ++j) {
             dst[j] = src[j];
         }
         last_pix = dst[j - 1];
         for (; j < dst_width; j++)
             dst[j] = last_pix;
         src += src_stride;
         dst += dst_width;
     }
     last_line = dst - dst_width;
     for (; i < dst_height; i++) {
         for (j = 0; j < dst_width; ++j) {
             dst[j] = last_line[j];
         }
         dst += dst_width;
     }
 }

 static int encode_slice(AVCodecContext *avctx, const AVFrame *pic, int mb_x,
         int mb_y, unsigned mb_count, uint8_t *buf, unsigned data_size,
         int unsafe, int *qp)
 {
     int luma_stride, chroma_stride;
     int hdr_size = 6, slice_size;
     uint8_t *dest_y, *dest_u, *dest_v;
     unsigned y_data_size = 0, u_data_size = 0, v_data_size = 0;
     ProresContext* ctx = avctx->priv_data;
     int tgt_bits   = (mb_count * bitrate_table[avctx->profile]) >> 2;
     int low_bytes  = (tgt_bits - (tgt_bits >> 3)) >> 3; // 12% bitrate fluctuation
     int high_bytes = (tgt_bits + (tgt_bits >> 3)) >> 3;

     luma_stride   = pic->linesize[0];
     chroma_stride = pic->linesize[1];

     dest_y = pic->data[0] + (mb_y << 4) * luma_stride   + (mb_x << 5);
     dest_u = pic->data[1] + (mb_y << 4) * chroma_stride + (mb_x << 4);
     dest_v = pic->data[2] + (mb_y << 4) * chroma_stride + (mb_x << 4);

     if (unsafe) {

         subimage_with_fill((uint16_t *) pic->data[0], mb_x << 4, mb_y << 4,
                 luma_stride, avctx->width, avctx->height,
                 (uint16_t *) ctx->fill_y, mb_count << 4, 16);
         subimage_with_fill((uint16_t *) pic->data[1], mb_x << 3, mb_y << 4,
                 chroma_stride, avctx->width >> 1, avctx->height,
                 (uint16_t *) ctx->fill_u, mb_count << 3, 16);
         subimage_with_fill((uint16_t *) pic->data[2], mb_x << 3, mb_y << 4,
                 chroma_stride, avctx->width >> 1, avctx->height,
                 (uint16_t *) ctx->fill_v, mb_count << 3, 16);

         encode_slice_data(avctx, ctx->fill_y, ctx->fill_u, ctx->fill_v,
                 mb_count << 5, mb_count << 4, mb_count, buf + hdr_size,
                 data_size - hdr_size, &y_data_size, &u_data_size, &v_data_size,
                 *qp);
     } else {
         slice_size = encode_slice_data(avctx, dest_y, dest_u, dest_v,
                 luma_stride, chroma_stride, mb_count, buf + hdr_size,
                 data_size - hdr_size, &y_data_size, &u_data_size, &v_data_size,
                 *qp);

         if (slice_size > high_bytes && *qp < qp_end_table[avctx->profile]) {
             do {
                 *qp += 1;
                 slice_size = encode_slice_data(avctx, dest_y, dest_u, dest_v,
                         luma_stride, chroma_stride, mb_count, buf + hdr_size,
                         data_size - hdr_size, &y_data_size, &u_data_size,
                         &v_data_size, *qp);
             } while (slice_size > high_bytes && *qp < qp_end_table[avctx->profile]);
         } else if (slice_size < low_bytes && *qp
                 > qp_start_table[avctx->profile]) {
             do {
                 *qp -= 1;
                 slice_size = encode_slice_data(avctx, dest_y, dest_u, dest_v,
                         luma_stride, chroma_stride, mb_count, buf + hdr_size,
                         data_size - hdr_size, &y_data_size, &u_data_size,
                         &v_data_size, *qp);
             } while (slice_size < low_bytes && *qp > qp_start_table[avctx->profile]);
         }
     }

     buf[0] = hdr_size << 3;
     buf[1] = *qp;
     AV_WB16(buf + 2, y_data_size);
     AV_WB16(buf + 4, u_data_size);

     return hdr_size + y_data_size + u_data_size + v_data_size;
 }

 static int prores_encode_picture(AVCodecContext *avctx, const AVFrame *pic,
         uint8_t *buf, const int buf_size)
 {
     int mb_width = (avctx->width + 15) >> 4;
     int mb_height = (avctx->height + 15) >> 4;
     int hdr_size, sl_size, i;
     int mb_y, sl_data_size, qp;
     int unsafe_bot, unsafe_right;
     uint8_t *sl_data, *sl_data_sizes;
     int slice_per_line = 0, rem = mb_width;

     for (i = av_log2(DEFAULT_SLICE_MB_WIDTH); i >= 0; --i) {
         slice_per_line += rem >> i;
         rem &= (1 << i) - 1;
     }

     qp = qp_start_table[avctx->profile];
     hdr_size = 8; sl_data_size = buf_size - hdr_size;
     sl_data_sizes = buf + hdr_size;
     sl_data = sl_data_sizes + (slice_per_line * mb_height * 2);
     for (mb_y = 0; mb_y < mb_height; mb_y++) {
         int mb_x = 0;
         int slice_mb_count = DEFAULT_SLICE_MB_WIDTH;
         while (mb_x < mb_width) {
             while (mb_width - mb_x < slice_mb_count)
                 slice_mb_count >>= 1;

             unsafe_bot = (avctx->height & 0xf) && (mb_y == mb_height - 1);
             unsafe_right = (avctx->width & 0xf) && (mb_x + slice_mb_count == mb_width);

             sl_size = encode_slice(avctx, pic, mb_x, mb_y, slice_mb_count,
                     sl_data, sl_data_size, unsafe_bot || unsafe_right, &qp);

             bytestream_put_be16(&sl_data_sizes, sl_size);
             sl_data           += sl_size;
             sl_data_size      -= sl_size;
             mb_x              += slice_mb_count;
         }
     }

     buf[0] = hdr_size << 3;
     AV_WB32(buf + 1, sl_data - buf);
     AV_WB16(buf + 5, slice_per_line * mb_height);
     buf[7] = av_log2(DEFAULT_SLICE_MB_WIDTH) << 4;

     return sl_data - buf;
 }

 static int prores_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                                const AVFrame *pict, int *got_packet)
 {
     int header_size = 148;
     uint8_t *buf;
     int pic_size, ret;
     int frame_size = FFALIGN(avctx->width, 16) * FFALIGN(avctx->height, 16)*16 + 500 + AV_INPUT_BUFFER_MIN_SIZE; //FIXME choose tighter limit


     if ((ret = ff_alloc_packet2(avctx, pkt, frame_size + AV_INPUT_BUFFER_MIN_SIZE, 0)) < 0)
         return ret;

     buf = pkt->data;
     pic_size = prores_encode_picture(avctx, pict, buf + header_size + 8,
             pkt->size - header_size - 8);

     bytestream_put_be32(&buf, pic_size + 8 + header_size);
     bytestream_put_buffer(&buf, "icpf", 4);

     bytestream_put_be16(&buf, header_size);
     bytestream_put_be16(&buf, 0);
     bytestream_put_buffer(&buf, "fmpg", 4);
     bytestream_put_be16(&buf, avctx->width);
     bytestream_put_be16(&buf, avctx->height);
     *buf++ = 0x83; // {10}(422){00}{00}(frame){11}
     *buf++ = 0;
     *buf++ = 2;
     *buf++ = 2;
     *buf++ = 6;
     *buf++ = 32;
     *buf++ = 0;
     *buf++ = 3;

     bytestream_put_buffer(&buf, QMAT_LUMA[avctx->profile],   64);
     bytestream_put_buffer(&buf, QMAT_CHROMA[avctx->profile], 64);

     pkt->flags |= AV_PKT_FLAG_KEY;
     pkt->size = pic_size + 8 + header_size;
     *got_packet = 1;

     return 0;
 }

 static void scale_mat(const uint8_t* src, int* dst, int scale)
 {
     int i;
     for (i = 0; i < 64; i++)
         dst[i] = src[i] * scale;
 }

 static av_cold int prores_encode_init(AVCodecContext *avctx)
 {
     int i;
     ProresContext* ctx = avctx->priv_data;

     if (avctx->pix_fmt != AV_PIX_FMT_YUV422P10) {
         av_log(avctx, AV_LOG_ERROR, "need YUV422P10\n");
         return AVERROR_PATCHWELCOME;
     }
     avctx->bits_per_raw_sample = 10;

     if (avctx->width & 0x1) {
         av_log(avctx, AV_LOG_ERROR,
                 "frame width needs to be multiple of 2\n");
         return AVERROR(EINVAL);
     }

     if (avctx->width > 65534 || avctx->height > 65535) {
         av_log(avctx, AV_LOG_ERROR,
                 "The maximum dimensions are 65534x65535\n");
         return AVERROR(EINVAL);
     }

     if ((avctx->height & 0xf) || (avctx->width & 0xf)) {
         ctx->fill_y = av_malloc(4 * (DEFAULT_SLICE_MB_WIDTH << 8));
         if (!ctx->fill_y)
             return AVERROR(ENOMEM);
         ctx->fill_u = ctx->fill_y + (DEFAULT_SLICE_MB_WIDTH << 9);
         ctx->fill_v = ctx->fill_u + (DEFAULT_SLICE_MB_WIDTH << 8);
     }

     if (avctx->profile == FF_PROFILE_UNKNOWN) {
         avctx->profile = FF_PROFILE_PRORES_STANDARD;
         av_log(avctx, AV_LOG_INFO,
                 "encoding with ProRes standard (apcn) profile\n");

     } else if (avctx->profile < FF_PROFILE_PRORES_PROXY
             || avctx->profile > FF_PROFILE_PRORES_HQ) {
         av_log(
                 avctx,
                 AV_LOG_ERROR,
                 "unknown profile %d, use [0 - apco, 1 - apcs, 2 - apcn (default), 3 - apch]\n",
                 avctx->profile);
         return AVERROR(EINVAL);
     }

     ff_fdctdsp_init(&ctx->fdsp, avctx);

     avctx->codec_tag = AV_RL32((const uint8_t*)profiles[avctx->profile].name);

     for (i = 1; i <= 16; i++) {
         scale_mat(QMAT_LUMA[avctx->profile]  , ctx->qmat_luma[i - 1]  , i);
         scale_mat(QMAT_CHROMA[avctx->profile], ctx->qmat_chroma[i - 1], i);
     }

     return 0;
 }

 static av_cold int prores_encode_close(AVCodecContext *avctx)
 {
     ProresContext* ctx = avctx->priv_data;
     av_freep(&ctx->fill_y);

     return 0;
 }

 AVCodec ff_prores_aw_encoder = {
     .name           = "prores_aw",
     .long_name      = NULL_IF_CONFIG_SMALL("Apple ProRes"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_PRORES,
     .priv_data_size = sizeof(ProresContext),
     .init           = prores_encode_init,
     .close          = prores_encode_close,
     .encode2        = prores_encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]){AV_PIX_FMT_YUV422P10, AV_PIX_FMT_NONE},
     .capabilities   = AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_INTRA_ONLY,
     .profiles       = profiles
 };

 AVCodec ff_prores_encoder = {
     .name           = "prores",
     .long_name      = NULL_IF_CONFIG_SMALL("Apple ProRes"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_PRORES,
     .priv_data_size = sizeof(ProresContext),
     .init           = prores_encode_init,
     .close          = prores_encode_close,
     .encode2        = prores_encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]){AV_PIX_FMT_YUV422P10, AV_PIX_FMT_NONE},
     .capabilities   = AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_INTRA_ONLY,
     .profiles       = profiles
 };
	/*
	* Apple ProRes encoder
	*
	* Copyright (c) 2011 Anatoliy Wasserman
	*
	* 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
	*/

	/**
	* @file
	* Apple ProRes encoder (Anatoliy Wasserman version)
	* Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'acpo' (Proxy)
	*/

	#include "avcodec.h"
	#include "dct.h"
	#include "internal.h"
	#include "put_bits.h"
	#include "bytestream.h"
	#include "fdctdsp.h"

	#define DEFAULT_SLICE_MB_WIDTH 8

	#define FF_PROFILE_PRORES_PROXY 0
	#define FF_PROFILE_PRORES_LT 1
	#define FF_PROFILE_PRORES_STANDARD 2
	#define FF_PROFILE_PRORES_HQ 3

	static const AVProfile profiles[] = {
	{ FF_PROFILE_PRORES_PROXY, "apco"},
	{ FF_PROFILE_PRORES_LT, "apcs"},
	{ FF_PROFILE_PRORES_STANDARD, "apcn"},
	{ FF_PROFILE_PRORES_HQ, "apch"},
	{ FF_PROFILE_UNKNOWN }
	};

	static const int qp_start_table[4] = { 4, 1, 1, 1 };
	static const int qp_end_table[4] = { 8, 9, 6, 6 };
	static const int bitrate_table[5] = { 1000, 2100, 3500, 5400 };

	static const uint8_t progressive_scan[64] = {
	0, 1, 8, 9, 2, 3, 10, 11,
	16, 17, 24, 25, 18, 19, 26, 27,
	4, 5, 12, 20, 13, 6, 7, 14,
	21, 28, 29, 22, 15, 23, 30, 31,
	32, 33, 40, 48, 41, 34, 35, 42,
	49, 56, 57, 50, 43, 36, 37, 44,
	51, 58, 59, 52, 45, 38, 39, 46,
	53, 60, 61, 54, 47, 55, 62, 63
	};

	static const uint8_t QMAT_LUMA[4][64] = {
	{
	4, 7, 9, 11, 13, 14, 15, 63,
	7, 7, 11, 12, 14, 15, 63, 63,
	9, 11, 13, 14, 15, 63, 63, 63,
	11, 11, 13, 14, 63, 63, 63, 63,
	11, 13, 14, 63, 63, 63, 63, 63,
	13, 14, 63, 63, 63, 63, 63, 63,
	13, 63, 63, 63, 63, 63, 63, 63,
	63, 63, 63, 63, 63, 63, 63, 63
	}, {
	4, 5, 6, 7, 9, 11, 13, 15,
	5, 5, 7, 8, 11, 13, 15, 17,
	6, 7, 9, 11, 13, 15, 15, 17,
	7, 7, 9, 11, 13, 15, 17, 19,
	7, 9, 11, 13, 14, 16, 19, 23,
	9, 11, 13, 14, 16, 19, 23, 29,
	9, 11, 13, 15, 17, 21, 28, 35,
	11, 13, 16, 17, 21, 28, 35, 41
	}, {
	4, 4, 5, 5, 6, 7, 7, 9,
	4, 4, 5, 6, 7, 7, 9, 9,
	5, 5, 6, 7, 7, 9, 9, 10,
	5, 5, 6, 7, 7, 9, 9, 10,
	5, 6, 7, 7, 8, 9, 10, 12,
	6, 7, 7, 8, 9, 10, 12, 15,
	6, 7, 7, 9, 10, 11, 14, 17,
	7, 7, 9, 10, 11, 14, 17, 21
	}, {
	4, 4, 4, 4, 4, 4, 4, 4,
	4, 4, 4, 4, 4, 4, 4, 4,
	4, 4, 4, 4, 4, 4, 4, 4,
	4, 4, 4, 4, 4, 4, 4, 5,
	4, 4, 4, 4, 4, 4, 5, 5,
	4, 4, 4, 4, 4, 5, 5, 6,
	4, 4, 4, 4, 5, 5, 6, 7,
	4, 4, 4, 4, 5, 6, 7, 7
	}
	};

	static const uint8_t QMAT_CHROMA[4][64] = {
	{
	4, 7, 9, 11, 13, 14, 63, 63,
	7, 7, 11, 12, 14, 63, 63, 63,
	9, 11, 13, 14, 63, 63, 63, 63,
	11, 11, 13, 14, 63, 63, 63, 63,
	11, 13, 14, 63, 63, 63, 63, 63,
	13, 14, 63, 63, 63, 63, 63, 63,
	13, 63, 63, 63, 63, 63, 63, 63,
	63, 63, 63, 63, 63, 63, 63, 63
	}, {
	4, 5, 6, 7, 9, 11, 13, 15,
	5, 5, 7, 8, 11, 13, 15, 17,
	6, 7, 9, 11, 13, 15, 15, 17,
	7, 7, 9, 11, 13, 15, 17, 19,
	7, 9, 11, 13, 14, 16, 19, 23,
	9, 11, 13, 14, 16, 19, 23, 29,
	9, 11, 13, 15, 17, 21, 28, 35,
	11, 13, 16, 17, 21, 28, 35, 41
	}, {
	4, 4, 5, 5, 6, 7, 7, 9,
	4, 4, 5, 6, 7, 7, 9, 9,
	5, 5, 6, 7, 7, 9, 9, 10,
	5, 5, 6, 7, 7, 9, 9, 10,
	5, 6, 7, 7, 8, 9, 10, 12,
	6, 7, 7, 8, 9, 10, 12, 15,
	6, 7, 7, 9, 10, 11, 14, 17,
	7, 7, 9, 10, 11, 14, 17, 21
	}, {
	4, 4, 4, 4, 4, 4, 4, 4,
	4, 4, 4, 4, 4, 4, 4, 4,
	4, 4, 4, 4, 4, 4, 4, 4,
	4, 4, 4, 4, 4, 4, 4, 5,
	4, 4, 4, 4, 4, 4, 5, 5,
	4, 4, 4, 4, 4, 5, 5, 6,
	4, 4, 4, 4, 5, 5, 6, 7,
	4, 4, 4, 4, 5, 6, 7, 7
	}
	};


	typedef struct {
	FDCTDSPContext fdsp;
	uint8_t* fill_y;
	uint8_t* fill_u;
	uint8_t* fill_v;

	int qmat_luma[16][64];
	int qmat_chroma[16][64];
	} ProresContext;

	static void encode_codeword(PutBitContext *pb, int val, int codebook)
	{
	unsigned int rice_order, exp_order, switch_bits, first_exp, exp, zeros;

	/* number of bits to switch between rice and exp golomb */
	switch_bits = codebook & 3;
	rice_order = codebook >> 5;
	exp_order = (codebook >> 2) & 7;

	first_exp = ((switch_bits + 1) << rice_order);

	if (val >= first_exp) { /* exp golomb */
	val -= first_exp;
	val += (1 << exp_order);
	exp = av_log2(val);
	zeros = exp - exp_order + switch_bits + 1;
	put_bits(pb, zeros, 0);
	put_bits(pb, exp + 1, val);
	} else if (rice_order) {
	put_bits(pb, (val >> rice_order), 0);
	put_bits(pb, 1, 1);
	put_sbits(pb, rice_order, val);
	} else {
	put_bits(pb, val, 0);
	put_bits(pb, 1, 1);
	}
	}

	#define QSCALE(qmat,ind,val) ((val) / ((qmat)[ind]))
	#define TO_GOLOMB(val) (((val) << 1) ^ ((val) >> 31))
	#define DIFF_SIGN(val, sign) (((val) >> 31) ^ (sign))
	#define IS_NEGATIVE(val) ((((val) >> 31) ^ -1) + 1)
	#define TO_GOLOMB2(val,sign) ((val)==0 ? 0 : ((val) << 1) + (sign))

	static av_always_inline int get_level(int val)
	{
	int sign = (val >> 31);
	return (val ^ sign) - sign;
	}

	#define FIRST_DC_CB 0xB8

	static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};

	static void encode_dc_coeffs(PutBitContext pb, int16_t in,
	int blocks_per_slice, int *qmat)
	{
	int prev_dc, code;
	int i, sign, idx;
	int new_dc, delta, diff_sign, new_code;

	prev_dc = QSCALE(qmat, 0, in[0] - 16384);
	code = TO_GOLOMB(prev_dc);
	encode_codeword(pb, code, FIRST_DC_CB);

	code = 5; sign = 0; idx = 64;
	for (i = 1; i < blocks_per_slice; i++, idx += 64) {
	new_dc = QSCALE(qmat, 0, in[idx] - 16384);
	delta = new_dc - prev_dc;
	diff_sign = DIFF_SIGN(delta, sign);
	new_code = TO_GOLOMB2(get_level(delta), diff_sign);

	encode_codeword(pb, new_code, dc_codebook[FFMIN(code, 6)]);

	code = new_code;
	sign = delta >> 31;
	prev_dc = new_dc;
	}
	}

	static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29,
	0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
	static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28,
	0x28, 0x28, 0x28, 0x4C };

	static void encode_ac_coeffs(AVCodecContext avctx, PutBitContext pb,
	int16_t in, int blocks_per_slice, int qmat)
	{
	int prev_run = 4;
	int prev_level = 2;

	int run = 0, level, code, i, j;
	for (i = 1; i < 64; i++) {
	int indp = progressive_scan[i];
	for (j = 0; j < blocks_per_slice; j++) {
	int val = QSCALE(qmat, indp, in[(j << 6) + indp]);
	if (val) {
	encode_codeword(pb, run, run_to_cb[FFMIN(prev_run, 15)]);

	prev_run = run;
	run = 0;
	level = get_level(val);
	code = level - 1;

	encode_codeword(pb, code, lev_to_cb[FFMIN(prev_level, 9)]);

	prev_level = level;

	put_bits(pb, 1, IS_NEGATIVE(val));
	} else {
	++run;
	}
	}
	}
	}

	static void get(uint8_t pixels, int stride, int16_t block)
	{
	int i;

	for (i = 0; i < 8; i++) {
	AV_WN64(block, AV_RN64(pixels));
	AV_WN64(block+4, AV_RN64(pixels+8));
	pixels += stride;
	block += 8;
	}
	}

	static void fdct_get(FDCTDSPContext fdsp, uint8_t pixels, int stride, int16_t* block)
	{
	get(pixels, stride, block);
	fdsp->fdct(block);
	}

	static int encode_slice_plane(AVCodecContext *avctx, int mb_count,
	uint8_t src, int src_stride, uint8_t buf, unsigned buf_size,
	int *qmat, int chroma)
	{
	ProresContext* ctx = avctx->priv_data;
	FDCTDSPContext *fdsp = &ctx->fdsp;
	LOCAL_ALIGNED(16, int16_t, blocks, [DEFAULT_SLICE_MB_WIDTH << 8]);
	int16_t *block;
	int i, blocks_per_slice;
	PutBitContext pb;

	block = blocks;
	for (i = 0; i < mb_count; i++) {
	fdct_get(fdsp, src, src_stride, block + (0 << 6));
	fdct_get(fdsp, src + 8 * src_stride, src_stride, block + ((2 - chroma) << 6));
	if (!chroma) {
	fdct_get(fdsp, src + 16, src_stride, block + (1 << 6));
	fdct_get(fdsp, src + 16 + 8 * src_stride, src_stride, block + (3 << 6));
	}

	block += (256 >> chroma);
	src += (32 >> chroma);
	}

	blocks_per_slice = mb_count << (2 - chroma);
	init_put_bits(&pb, buf, buf_size);

	encode_dc_coeffs(&pb, blocks, blocks_per_slice, qmat);
	encode_ac_coeffs(avctx, &pb, blocks, blocks_per_slice, qmat);

	flush_put_bits(&pb);
	return put_bits_ptr(&pb) - pb.buf;
	}

	static av_always_inline unsigned encode_slice_data(AVCodecContext *avctx,
	uint8_t dest_y, uint8_t dest_u, uint8_t *dest_v, int luma_stride,
	int chroma_stride, unsigned mb_count, uint8_t *buf, unsigned data_size,
	unsigned* y_data_size, unsigned* u_data_size, unsigned* v_data_size,
	int qp)
	{
	ProresContext* ctx = avctx->priv_data;

	*y_data_size = encode_slice_plane(avctx, mb_count, dest_y, luma_stride,
	buf, data_size, ctx->qmat_luma[qp - 1], 0);

	if (!(avctx->flags & AV_CODEC_FLAG_GRAY)) {
	*u_data_size = encode_slice_plane(avctx, mb_count, dest_u,
	chroma_stride, buf + y_data_size, data_size - y_data_size,
	ctx->qmat_chroma[qp - 1], 1);

	*v_data_size = encode_slice_plane(avctx, mb_count, dest_v,
	chroma_stride, buf + y_data_size + u_data_size,
	data_size - y_data_size - u_data_size,
	ctx->qmat_chroma[qp - 1], 1);
	}

	return y_data_size + u_data_size + *v_data_size;
	}

	static void subimage_with_fill(uint16_t *src, unsigned x, unsigned y,
	unsigned stride, unsigned width, unsigned height, uint16_t *dst,
	unsigned dst_width, unsigned dst_height)
	{

	int box_width = FFMIN(width - x, dst_width);
	int box_height = FFMIN(height - y, dst_height);
	int i, j, src_stride = stride >> 1;
	uint16_t last_pix, *last_line;

	src += y * src_stride + x;
	for (i = 0; i < box_height; ++i) {
	for (j = 0; j < box_width; ++j) {
	dst[j] = src[j];
	}
	last_pix = dst[j - 1];
	for (; j < dst_width; j++)
	dst[j] = last_pix;
	src += src_stride;
	dst += dst_width;
	}
	last_line = dst - dst_width;
	for (; i < dst_height; i++) {
	for (j = 0; j < dst_width; ++j) {
	dst[j] = last_line[j];
	}
	dst += dst_width;
	}
	}

	static int encode_slice(AVCodecContext avctx, const AVFrame pic, int mb_x,
	int mb_y, unsigned mb_count, uint8_t *buf, unsigned data_size,
	int unsafe, int *qp)
	{
	int luma_stride, chroma_stride;
	int hdr_size = 6, slice_size;
	uint8_t dest_y, dest_u, *dest_v;
	unsigned y_data_size = 0, u_data_size = 0, v_data_size = 0;
	ProresContext* ctx = avctx->priv_data;
	int tgt_bits = (mb_count * bitrate_table[avctx->profile]) >> 2;
	int low_bytes = (tgt_bits - (tgt_bits >> 3)) >> 3; // 12% bitrate fluctuation
	int high_bytes = (tgt_bits + (tgt_bits >> 3)) >> 3;

	luma_stride = pic->linesize[0];
	chroma_stride = pic->linesize[1];

	dest_y = pic->data[0] + (mb_y << 4) * luma_stride + (mb_x << 5);
	dest_u = pic->data[1] + (mb_y << 4) * chroma_stride + (mb_x << 4);
	dest_v = pic->data[2] + (mb_y << 4) * chroma_stride + (mb_x << 4);

	if (unsafe) {

	subimage_with_fill((uint16_t *) pic->data[0], mb_x << 4, mb_y << 4,
	luma_stride, avctx->width, avctx->height,
	(uint16_t *) ctx->fill_y, mb_count << 4, 16);
	subimage_with_fill((uint16_t *) pic->data[1], mb_x << 3, mb_y << 4,
	chroma_stride, avctx->width >> 1, avctx->height,
	(uint16_t *) ctx->fill_u, mb_count << 3, 16);
	subimage_with_fill((uint16_t *) pic->data[2], mb_x << 3, mb_y << 4,
	chroma_stride, avctx->width >> 1, avctx->height,
	(uint16_t *) ctx->fill_v, mb_count << 3, 16);

	encode_slice_data(avctx, ctx->fill_y, ctx->fill_u, ctx->fill_v,
	mb_count << 5, mb_count << 4, mb_count, buf + hdr_size,
	data_size - hdr_size, &y_data_size, &u_data_size, &v_data_size,
	*qp);
	} else {
	slice_size = encode_slice_data(avctx, dest_y, dest_u, dest_v,
	luma_stride, chroma_stride, mb_count, buf + hdr_size,
	data_size - hdr_size, &y_data_size, &u_data_size, &v_data_size,
	*qp);

	if (slice_size > high_bytes && *qp < qp_end_table[avctx->profile]) {
	do {
	*qp += 1;
	slice_size = encode_slice_data(avctx, dest_y, dest_u, dest_v,
	luma_stride, chroma_stride, mb_count, buf + hdr_size,
	data_size - hdr_size, &y_data_size, &u_data_size,
	&v_data_size, *qp);
	} while (slice_size > high_bytes && *qp < qp_end_table[avctx->profile]);
	} else if (slice_size < low_bytes && *qp
	> qp_start_table[avctx->profile]) {
	do {
	*qp -= 1;
	slice_size = encode_slice_data(avctx, dest_y, dest_u, dest_v,
	luma_stride, chroma_stride, mb_count, buf + hdr_size,
	data_size - hdr_size, &y_data_size, &u_data_size,
	&v_data_size, *qp);
	} while (slice_size < low_bytes && *qp > qp_start_table[avctx->profile]);
	}
	}

	buf[0] = hdr_size << 3;
	buf[1] = *qp;
	AV_WB16(buf + 2, y_data_size);
	AV_WB16(buf + 4, u_data_size);

	return hdr_size + y_data_size + u_data_size + v_data_size;
	}

	static int prores_encode_picture(AVCodecContext avctx, const AVFrame pic,
	uint8_t *buf, const int buf_size)
	{
	int mb_width = (avctx->width + 15) >> 4;
	int mb_height = (avctx->height + 15) >> 4;
	int hdr_size, sl_size, i;
	int mb_y, sl_data_size, qp;
	int unsafe_bot, unsafe_right;
	uint8_t sl_data, sl_data_sizes;
	int slice_per_line = 0, rem = mb_width;

	for (i = av_log2(DEFAULT_SLICE_MB_WIDTH); i >= 0; --i) {
	slice_per_line += rem >> i;
	rem &= (1 << i) - 1;
	}

	qp = qp_start_table[avctx->profile];
	hdr_size = 8; sl_data_size = buf_size - hdr_size;
	sl_data_sizes = buf + hdr_size;
	sl_data = sl_data_sizes + (slice_per_line * mb_height * 2);
	for (mb_y = 0; mb_y < mb_height; mb_y++) {
	int mb_x = 0;
	int slice_mb_count = DEFAULT_SLICE_MB_WIDTH;
	while (mb_x < mb_width) {
	while (mb_width - mb_x < slice_mb_count)
	slice_mb_count >>= 1;

	unsafe_bot = (avctx->height & 0xf) && (mb_y == mb_height - 1);
	unsafe_right = (avctx->width & 0xf) && (mb_x + slice_mb_count == mb_width);

	sl_size = encode_slice(avctx, pic, mb_x, mb_y, slice_mb_count,
	sl_data, sl_data_size, unsafe_bot \|\| unsafe_right, &qp);

	bytestream_put_be16(&sl_data_sizes, sl_size);
	sl_data += sl_size;
	sl_data_size -= sl_size;
	mb_x += slice_mb_count;
	}
	}

	buf[0] = hdr_size << 3;
	AV_WB32(buf + 1, sl_data - buf);
	AV_WB16(buf + 5, slice_per_line * mb_height);
	buf[7] = av_log2(DEFAULT_SLICE_MB_WIDTH) << 4;

	return sl_data - buf;
	}

	static int prores_encode_frame(AVCodecContext avctx, AVPacket pkt,
	const AVFrame pict, int got_packet)
	{
	int header_size = 148;
	uint8_t *buf;
	int pic_size, ret;
	int frame_size = FFALIGN(avctx->width, 16) * FFALIGN(avctx->height, 16)*16 + 500 + AV_INPUT_BUFFER_MIN_SIZE; //FIXME choose tighter limit


	if ((ret = ff_alloc_packet2(avctx, pkt, frame_size + AV_INPUT_BUFFER_MIN_SIZE, 0)) < 0)
	return ret;

	buf = pkt->data;
	pic_size = prores_encode_picture(avctx, pict, buf + header_size + 8,
	pkt->size - header_size - 8);

	bytestream_put_be32(&buf, pic_size + 8 + header_size);
	bytestream_put_buffer(&buf, "icpf", 4);

	bytestream_put_be16(&buf, header_size);
	bytestream_put_be16(&buf, 0);
	bytestream_put_buffer(&buf, "fmpg", 4);
	bytestream_put_be16(&buf, avctx->width);
	bytestream_put_be16(&buf, avctx->height);
	*buf++ = 0x83; // {10}(422){00}{00}(frame){11}
	*buf++ = 0;
	*buf++ = 2;
	*buf++ = 2;
	*buf++ = 6;
	*buf++ = 32;
	*buf++ = 0;
	*buf++ = 3;

	bytestream_put_buffer(&buf, QMAT_LUMA[avctx->profile], 64);
	bytestream_put_buffer(&buf, QMAT_CHROMA[avctx->profile], 64);

	pkt->flags \|= AV_PKT_FLAG_KEY;
	pkt->size = pic_size + 8 + header_size;
	*got_packet = 1;

	return 0;
	}

	static void scale_mat(const uint8_t* src, int* dst, int scale)
	{
	int i;
	for (i = 0; i < 64; i++)
	dst[i] = src[i] * scale;
	}

	static av_cold int prores_encode_init(AVCodecContext *avctx)
	{
	int i;
	ProresContext* ctx = avctx->priv_data;

	if (avctx->pix_fmt != AV_PIX_FMT_YUV422P10) {
	av_log(avctx, AV_LOG_ERROR, "need YUV422P10\n");
	return AVERROR_PATCHWELCOME;
	}
	avctx->bits_per_raw_sample = 10;

	if (avctx->width & 0x1) {
	av_log(avctx, AV_LOG_ERROR,
	"frame width needs to be multiple of 2\n");
	return AVERROR(EINVAL);
	}

	if (avctx->width > 65534 \|\| avctx->height > 65535) {
	av_log(avctx, AV_LOG_ERROR,
	"The maximum dimensions are 65534x65535\n");
	return AVERROR(EINVAL);
	}

	if ((avctx->height & 0xf) \|\| (avctx->width & 0xf)) {
	ctx->fill_y = av_malloc(4 * (DEFAULT_SLICE_MB_WIDTH << 8));
	if (!ctx->fill_y)
	return AVERROR(ENOMEM);
	ctx->fill_u = ctx->fill_y + (DEFAULT_SLICE_MB_WIDTH << 9);
	ctx->fill_v = ctx->fill_u + (DEFAULT_SLICE_MB_WIDTH << 8);
	}

	if (avctx->profile == FF_PROFILE_UNKNOWN) {
	avctx->profile = FF_PROFILE_PRORES_STANDARD;
	av_log(avctx, AV_LOG_INFO,
	"encoding with ProRes standard (apcn) profile\n");

	} else if (avctx->profile < FF_PROFILE_PRORES_PROXY
	\|\| avctx->profile > FF_PROFILE_PRORES_HQ) {
	av_log(
	avctx,
	AV_LOG_ERROR,
	"unknown profile %d, use [0 - apco, 1 - apcs, 2 - apcn (default), 3 - apch]\n",
	avctx->profile);
	return AVERROR(EINVAL);
	}

	ff_fdctdsp_init(&ctx->fdsp, avctx);

	avctx->codec_tag = AV_RL32((const uint8_t*)profiles[avctx->profile].name);

	for (i = 1; i <= 16; i++) {
	scale_mat(QMAT_LUMA[avctx->profile] , ctx->qmat_luma[i - 1] , i);
	scale_mat(QMAT_CHROMA[avctx->profile], ctx->qmat_chroma[i - 1], i);
	}

	return 0;
	}

	static av_cold int prores_encode_close(AVCodecContext *avctx)
	{
	ProresContext* ctx = avctx->priv_data;
	av_freep(&ctx->fill_y);

	return 0;
	}

	AVCodec ff_prores_aw_encoder = {
	.name = "prores_aw",
	.long_name = NULL_IF_CONFIG_SMALL("Apple ProRes"),
	.type = AVMEDIA_TYPE_VIDEO,
	.id = AV_CODEC_ID_PRORES,
	.priv_data_size = sizeof(ProresContext),
	.init = prores_encode_init,
	.close = prores_encode_close,
	.encode2 = prores_encode_frame,
	.pix_fmts = (const enum AVPixelFormat[]){AV_PIX_FMT_YUV422P10, AV_PIX_FMT_NONE},
	.capabilities = AV_CODEC_CAP_FRAME_THREADS \| AV_CODEC_CAP_INTRA_ONLY,
	.profiles = profiles
	};

	AVCodec ff_prores_encoder = {
	.name = "prores",
	.long_name = NULL_IF_CONFIG_SMALL("Apple ProRes"),
	.type = AVMEDIA_TYPE_VIDEO,
	.id = AV_CODEC_ID_PRORES,
	.priv_data_size = sizeof(ProresContext),
	.init = prores_encode_init,
	.close = prores_encode_close,
	.encode2 = prores_encode_frame,
	.pix_fmts = (const enum AVPixelFormat[]){AV_PIX_FMT_YUV422P10, AV_PIX_FMT_NONE},
	.capabilities = AV_CODEC_CAP_FRAME_THREADS \| AV_CODEC_CAP_INTRA_ONLY,
	.profiles = profiles
	};