[FFmpeg-devel] [PATCH 2/2] avcodec: remove anatoliy prores encoder

Paul B Mahol onemda at gmail.com
Mon Jun 26 17:09:58 EEST 2017


Rationale:
- Slower then other encoder
- Less configurable
- Does not support alpha profile
- Does not set interlaced flag
- Worse output quality
- No need for 2 encoders

Signed-off-by: Paul B Mahol <onemda at gmail.com>
---
 doc/encoders.texi               |   5 +-
 libavcodec/Makefile             |   1 -
 libavcodec/allcodecs.c          |   1 -
 libavcodec/proresenc_anatoliy.c | 616 ----------------------------------------
 4 files changed, 1 insertion(+), 622 deletions(-)
 delete mode 100644 libavcodec/proresenc_anatoliy.c

diff --git a/doc/encoders.texi b/doc/encoders.texi
index a8bee09..37d6378 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -2367,10 +2367,7 @@ Set physical density of pixels, in dots per meter, unset by default
 
 Apple ProRes encoder.
 
-FFmpeg contains 2 ProRes encoders, the prores-aw and prores-ks encoder.
-The used encoder can be chosen with the @code{-vcodec} option.
-
- at subsection Private Options for prores-ks
+ at subsection Private Options for prores
 
 @table @option
 @item profile @var{integer}
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 16dce40..ea47008 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -478,7 +478,6 @@ OBJS-$(CONFIG_PPM_ENCODER)             += pnmenc.o
 OBJS-$(CONFIG_PRORES_DECODER)          += proresdec2.o proresdsp.o proresdata.o
 OBJS-$(CONFIG_PRORES_LGPL_DECODER)     += proresdec_lgpl.o proresdsp.o proresdata.o
 OBJS-$(CONFIG_PRORES_ENCODER)          += proresenc_kostya.o proresdata.o
-OBJS-$(CONFIG_PRORES_AW_ENCODER)       += proresenc_anatoliy.o
 OBJS-$(CONFIG_PRORES_KS_ENCODER)       += proresenc_kostya.o proresdata.o
 OBJS-$(CONFIG_PSD_DECODER)             += psd.o
 OBJS-$(CONFIG_PTX_DECODER)             += ptx.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 54a9e8c..f291d6a 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -287,7 +287,6 @@ static void register_all(void)
     REGISTER_ENCDEC (PNG,               png);
     REGISTER_ENCDEC (PPM,               ppm);
     REGISTER_ENCDEC (PRORES,            prores);
-    REGISTER_ENCODER(PRORES_AW,         prores_aw);
     REGISTER_ENCODER(PRORES_KS,         prores_ks);
     REGISTER_DECODER(PRORES_LGPL,       prores_lgpl);
     REGISTER_DECODER(PSD,               psd);
diff --git a/libavcodec/proresenc_anatoliy.c b/libavcodec/proresenc_anatoliy.c
deleted file mode 100644
index 7ff6ff7..0000000
--- a/libavcodec/proresenc_anatoliy.c
+++ /dev/null
@@ -1,616 +0,0 @@
-/*
- * 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
-};
-- 
2.9.3



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