@@ -69,6 +69,7 @@ easier to use. The changes are:

 - Speex encoding via libspeex

 - 4:2:2 H.264 decoding support

 - Pulseaudio input device

+- Prores encoder

 version 0.8:

@@ -350,7 +350,7 @@ following image formats are supported:

     @tab Used in Chinese MP3 players.

 @item ANSI/ASCII art         @tab     @tab  X

 @item Apple MJPEG-B          @tab     @tab  X

-@item Apple ProRes           @tab     @tab  X

+@item Apple ProRes           @tab  X  @tab  X

 @item Apple QuickDraw        @tab     @tab  X

     @tab fourcc: qdrw

 @item Asus v1                @tab  X  @tab  X

@@ -315,6 +315,7 @@ OBJS-$(CONFIG_PPM_DECODER)             += pnmdec.o pnm.o

 OBJS-$(CONFIG_PPM_ENCODER)             += pnmenc.o pnm.o

 OBJS-$(CONFIG_PRORES_DECODER)          += proresdec2.o

 OBJS-$(CONFIG_PRORES_LGPL_DECODER)     += proresdec_lgpl.o proresdsp.o

+OBJS-$(CONFIG_PRORES_ENCODER)          += proresenc.o

 OBJS-$(CONFIG_PTX_DECODER)             += ptx.o

 OBJS-$(CONFIG_QCELP_DECODER)           += qcelpdec.o celp_math.o         \

                                           celp_filters.o acelp_vectors.o \

@@ -172,7 +172,7 @@ void avcodec_register_all(void)

     REGISTER_DECODER (PICTOR, pictor);

     REGISTER_ENCDEC  (PNG, png);

     REGISTER_ENCDEC  (PPM, ppm);

-    REGISTER_DECODER (PRORES, prores);

+    REGISTER_ENCDEC  (PRORES, prores);

     REGISTER_DECODER (PRORES_LGPL, prores_lgpl);

     REGISTER_DECODER (PTX, ptx);

     REGISTER_DECODER (QDRAW, qdraw);

new file mode 100644

@@ -0,0 +1,610 @@

+/*

+ * 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 libavcodec/proresenc.c

+ * Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'acpo' (Proxy)

+ */

+

+#include "avcodec.h"

+#include "put_bits.h"

+#include "dsputil.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 {

+    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,

+            mask;

+

+    /* 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, 1, 1);

+        put_bits(pb, exp, val);

+    } else if (rice_order) {

+        mask = (1 << rice_order) - 1;

+        put_bits(pb, (val >> rice_order), 0);

+        put_bits(pb, 1, 1);

+        put_bits(pb, rice_order, val & mask);

+    } 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, DCTELEM *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,

+        DCTELEM *in, int blocks_per_slice, int *qmat)

+{

+    int prev_run = 4;

+    int prev_level = 2;

+

+    int run = 0, level, code;

+    for (int i = 1; i < 64; i++) {

+        int indp = progressive_scan[i];

+        for (int 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, DCTELEM* block)

+{

+    int16_t *p = (int16_t*)pixels;

+    int i, j;

+

+    stride >>= 1;

+    for (i = 0; i < 8; i++) {

+        for (j = 0; j < 8; j++) {

+            block[j] = p[j];

+        }

+        p += stride;

+        block += 8;

+    }

+}

+

+static void fdct_get(uint8_t *pixels, int stride, DCTELEM* block)

+{

+    get(pixels, stride, block);

+    ff_jpeg_fdct_islow_10(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)

+{

+    DECLARE_ALIGNED(16, DCTELEM, blocks)[DEFAULT_SLICE_MB_WIDTH << 8], *block;

+    int i, blocks_per_slice;

+    PutBitContext pb;

+

+    block = blocks;

+    for (i = 0; i < mb_count; i++) {

+        fdct_get(src,                  src_stride, block + (0 << 6));

+        fdct_get(src + 8 * src_stride, src_stride, block + ((2 - chroma) << 6));

+        if (!chroma) {

+            fdct_get(src + 16,                  src_stride, block + (1 << 6));

+            fdct_get(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 << 3);

+

+    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 = (ProresContext*) 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 & 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, 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 = (ProresContext*)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, 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, *slice_sizes;

+    int sl, mb_y, sl_data_size, qp;

+    int unsafe_bot, unsafe_right;

+    uint8_t *sl_data;

+    int slice_per_line = 0, rem = mb_width;

+

+    for (int 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];

+    slice_sizes = av_malloc(slice_per_line * mb_height * sizeof(int));

+    sl = 0; hdr_size = 8; sl_data_size = buf_size - hdr_size;

+    sl_data = buf + hdr_size + (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);

+

+            slice_sizes[sl++]  = 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;

+

+    for (int i = 0; i < slice_per_line * mb_height; i++)

+        AV_WB16(buf + hdr_size + (i << 1), slice_sizes[i]);

+

+    av_free(slice_sizes);

+

+    return sl_data - buf;

+}

+

+static int prores_encode_frame(AVCodecContext *avctx, unsigned char *buf,

+        int buf_size, void *data)

+{

+    AVFrame *pic = data;

+

+    int header_size = 148;

+    int pic_size = prores_encode_picture(avctx, pic, buf + header_size + 8,

+            buf_size - header_size - 8);

+

+    AV_WB32(buf, pic_size + 8 + header_size);

+    AV_WB8 (buf + 4, 'i');

+    AV_WB8 (buf + 5, 'c');

+    AV_WB8 (buf + 6, 'p');

+    AV_WB8 (buf + 7, 'f');

+

+    AV_WB16(buf + 8, header_size);

+    AV_WB16(buf + 10, 0);

+    AV_WB8 (buf + 12, 'f');

+    AV_WB8 (buf + 13, 'm');

+    AV_WB8 (buf + 14, 'p');

+    AV_WB8 (buf + 15, 'g');

+    AV_WB16(buf + 16, pic->width);

+    AV_WB16(buf + 18, pic->height);

+    buf[20] = 0x83; // {10}(422){00}{00}(frame){11}

+    buf[21] = 0;

+    buf[22] = 2;

+    buf[23] = 2;

+    buf[24] = 6;

+    buf[25] = 32;

+    buf[26] = 0;

+    buf[27] = 3;

+

+    memcpy(buf + 28, QMAT_LUMA[avctx->profile], 64);

+    memcpy(buf + 92, QMAT_CHROMA[avctx->profile], 64);

+

+    return pic_size + 8 + header_size;

+}

+

+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 = (ProresContext*)avctx->priv_data;

+

+    if (avctx->pix_fmt != PIX_FMT_YUV422P10LE) {

+        av_log(avctx, AV_LOG_ERROR, "need YUV422P10\n");

+        return -1;

+    }

+    if (avctx->width & 0x1) {

+        av_log(avctx, AV_LOG_ERROR,

+                "frame width needs to be multiple of 2\n");

+        return -1;

+    }

+

+    memset(ctx, 0, sizeof(ProresContext));

+    if ((avctx->height & 0xf) || (avctx->width & 0xf)) {

+        ctx->fill_y = av_malloc(DEFAULT_SLICE_MB_WIDTH << 9);

+        ctx->fill_u = av_malloc(DEFAULT_SLICE_MB_WIDTH << 8);

+        ctx->fill_v = av_malloc(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 -1;

+    }

+

+    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);

+    }

+

+    avctx->coded_frame = avcodec_alloc_frame();

+    avctx->coded_frame->key_frame = 1;

+    avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;

+

+    return 0;

+}

+

+static av_cold int prores_encode_close(AVCodecContext *avctx)

+{

+    ProresContext* ctx = (ProresContext*)avctx->priv_data;

+    av_freep(&avctx->coded_frame);

+    av_free(ctx->fill_y);

+    av_free(ctx->fill_u);

+    av_free(ctx->fill_v);

+

+    return 0;

+}

+

+AVCodec ff_prores_encoder = {

+    .name           = "prores",

+    .type           = AVMEDIA_TYPE_VIDEO,

+    .id             = CODEC_ID_PRORES,

+    .priv_data_size = sizeof(ProresContext),

+    .init           = prores_encode_init,

+    .close          = prores_encode_close,

+    .encode         = prores_encode_frame,

+    .pix_fmts       = (const enum PixelFormat[]){PIX_FMT_YUV422P10LE, PIX_FMT_NONE},

+    .long_name      = NULL_IF_CONFIG_SMALL("Apple ProRes"),

+    .capabilities   = 0,

+    .profiles       = profiles

+};