--- /dev/null
- ff_proresdsp_init(&ctx->dsp);
+ /*
+ * Apple ProRes encoder
+ *
+ * Copyright (c) 2012 Konstantin Shishkov
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+ #include "libavutil/opt.h"
+ #include "avcodec.h"
+ #include "put_bits.h"
+ #include "bytestream.h"
+ #include "internal.h"
+ #include "proresdsp.h"
+ #include "proresdata.h"
+
+ #define CFACTOR_Y422 2
+ #define CFACTOR_Y444 3
+
+ #define MAX_MBS_PER_SLICE 8
+
+ #define MAX_PLANES 3 // should be increased to 4 when there's PIX_FMT_YUV444AP10
+
+ enum {
+ PRORES_PROFILE_PROXY = 0,
+ PRORES_PROFILE_LT,
+ PRORES_PROFILE_STANDARD,
+ PRORES_PROFILE_HQ,
+ };
+
+ #define NUM_MB_LIMITS 4
+ static const int prores_mb_limits[NUM_MB_LIMITS] = {
+ 1620, // up to 720x576
+ 2700, // up to 960x720
+ 6075, // up to 1440x1080
+ 9216, // up to 2048x1152
+ };
+
+ static const struct prores_profile {
+ const char *full_name;
+ uint32_t tag;
+ int min_quant;
+ int max_quant;
+ int br_tab[NUM_MB_LIMITS];
+ uint8_t quant[64];
+ } prores_profile_info[4] = {
+ {
+ .full_name = "proxy",
+ .tag = MKTAG('a', 'p', 'c', 'o'),
+ .min_quant = 4,
+ .max_quant = 8,
+ .br_tab = { 300, 242, 220, 194 },
+ .quant = {
+ 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,
+ },
+ },
+ {
+ .full_name = "LT",
+ .tag = MKTAG('a', 'p', 'c', 's'),
+ .min_quant = 1,
+ .max_quant = 9,
+ .br_tab = { 720, 560, 490, 440 },
+ .quant = {
+ 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,
+ },
+ },
+ {
+ .full_name = "standard",
+ .tag = MKTAG('a', 'p', 'c', 'n'),
+ .min_quant = 1,
+ .max_quant = 6,
+ .br_tab = { 1050, 808, 710, 632 },
+ .quant = {
+ 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,
+ },
+ },
+ {
+ .full_name = "high quality",
+ .tag = MKTAG('a', 'p', 'c', 'h'),
+ .min_quant = 1,
+ .max_quant = 6,
+ .br_tab = { 1566, 1216, 1070, 950 },
+ .quant = {
+ 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,
+ },
+ }
+ // for 4444 profile bitrate numbers are { 2350, 1828, 1600, 1425 }
+ };
+
+ #define TRELLIS_WIDTH 16
+ #define SCORE_LIMIT INT_MAX / 2
+
+ struct TrellisNode {
+ int prev_node;
+ int quant;
+ int bits;
+ int score;
+ };
+
+ typedef struct ProresContext {
+ AVClass *class;
+ DECLARE_ALIGNED(16, DCTELEM, blocks)[MAX_PLANES][64 * 4 * MAX_MBS_PER_SLICE];
+ DECLARE_ALIGNED(16, uint16_t, emu_buf)[16*16];
+ int16_t quants[16][64];
+
+ ProresDSPContext dsp;
+ ScanTable scantable;
+
+ int mb_width, mb_height;
+ int mbs_per_slice;
+ int num_chroma_blocks, chroma_factor;
+ int slices_width;
+ int num_slices;
+ int num_planes;
+ int bits_per_mb;
+
+ int profile;
+ const struct prores_profile *profile_info;
+
+ struct TrellisNode *nodes;
+ int *slice_q;
+ } ProresContext;
+
+ static void get_slice_data(ProresContext *ctx, const uint16_t *src,
+ int linesize, int x, int y, int w, int h,
+ DCTELEM *blocks,
+ int mbs_per_slice, int blocks_per_mb)
+ {
+ const uint16_t *esrc;
+ const int mb_width = 4 * blocks_per_mb;
+ int elinesize;
+ int i, j, k;
+
+ for (i = 0; i < mbs_per_slice; i++, src += mb_width) {
+ if (x >= w) {
+ memset(blocks, 0, 64 * (mbs_per_slice - i) * blocks_per_mb
+ * sizeof(*blocks));
+ return;
+ }
+ if (x + mb_width <= w && y + 16 <= h) {
+ esrc = src;
+ elinesize = linesize;
+ } else {
+ int bw, bh, pix;
+ const int estride = 16 / sizeof(*ctx->emu_buf);
+
+ esrc = ctx->emu_buf;
+ elinesize = 16;
+
+ bw = FFMIN(w - x, mb_width);
+ bh = FFMIN(h - y, 16);
+
+ for (j = 0; j < bh; j++) {
+ memcpy(ctx->emu_buf + j * estride, src + j * linesize,
+ bw * sizeof(*src));
+ pix = ctx->emu_buf[j * estride + bw - 1];
+ for (k = bw; k < mb_width; k++)
+ ctx->emu_buf[j * estride + k] = pix;
+ }
+ for (; j < 16; j++)
+ memcpy(ctx->emu_buf + j * estride,
+ ctx->emu_buf + (bh - 1) * estride,
+ mb_width * sizeof(*ctx->emu_buf));
+ }
+ ctx->dsp.fdct(esrc, elinesize, blocks);
+ blocks += 64;
+ if (blocks_per_mb > 2) {
+ ctx->dsp.fdct(src + 8, linesize, blocks);
+ blocks += 64;
+ }
+ ctx->dsp.fdct(src + linesize * 4, linesize, blocks);
+ blocks += 64;
+ if (blocks_per_mb > 2) {
+ ctx->dsp.fdct(src + linesize * 4 + 8, linesize, blocks);
+ blocks += 64;
+ }
+
+ x += mb_width;
+ }
+ }
+
+ /**
+ * Write an unsigned rice/exp golomb codeword.
+ */
+ static inline void encode_vlc_codeword(PutBitContext *pb, uint8_t codebook, int val)
+ {
+ unsigned int rice_order, exp_order, switch_bits, switch_val;
+ int exponent;
+
+ /* number of prefix bits to switch between Rice and expGolomb */
+ switch_bits = (codebook & 3) + 1;
+ rice_order = codebook >> 5; /* rice code order */
+ exp_order = (codebook >> 2) & 7; /* exp golomb code order */
+
+ switch_val = switch_bits << rice_order;
+
+ if (val >= switch_val) {
+ val -= switch_val - (1 << exp_order);
+ exponent = av_log2(val);
+
+ put_bits(pb, exponent - exp_order + switch_bits, 0);
+ put_bits(pb, 1, 1);
+ put_bits(pb, exponent, val);
+ } else {
+ exponent = val >> rice_order;
+
+ if (exponent)
+ put_bits(pb, exponent, 0);
+ put_bits(pb, 1, 1);
+ if (rice_order)
+ put_sbits(pb, rice_order, val);
+ }
+ }
+
+ #define GET_SIGN(x) ((x) >> 31)
+ #define MAKE_CODE(x) (((x) << 1) ^ GET_SIGN(x))
+
+ static void encode_dcs(PutBitContext *pb, DCTELEM *blocks,
+ int blocks_per_slice, int scale)
+ {
+ int i;
+ int codebook = 3, code, dc, prev_dc, delta, sign, new_sign;
+
+ prev_dc = (blocks[0] - 0x4000) / scale;
+ encode_vlc_codeword(pb, FIRST_DC_CB, MAKE_CODE(prev_dc));
+ codebook = 3;
+ blocks += 64;
+
+ for (i = 1; i < blocks_per_slice; i++, blocks += 64) {
+ dc = (blocks[0] - 0x4000) / scale;
+ delta = dc - prev_dc;
+ new_sign = GET_SIGN(delta);
+ delta = (delta ^ sign) - sign;
+ code = MAKE_CODE(delta);
+ encode_vlc_codeword(pb, ff_prores_dc_codebook[codebook], code);
+ codebook = (code + (code & 1)) >> 1;
+ codebook = FFMIN(codebook, 3);
+ sign = new_sign;
+ prev_dc = dc;
+ }
+ }
+
+ static void encode_acs(PutBitContext *pb, DCTELEM *blocks,
+ int blocks_per_slice,
+ int plane_size_factor,
+ const uint8_t *scan, const int16_t *qmat)
+ {
+ int idx, i;
+ int run, level, run_cb, lev_cb;
+ int max_coeffs, abs_level;
+
+ max_coeffs = blocks_per_slice << 6;
+ run_cb = ff_prores_run_to_cb_index[4];
+ lev_cb = ff_prores_lev_to_cb_index[2];
+ run = 0;
+
+ for (i = 1; i < 64; i++) {
+ for (idx = scan[i]; idx < max_coeffs; idx += 64) {
+ level = blocks[idx] / qmat[scan[i]];
+ if (level) {
+ abs_level = FFABS(level);
+ encode_vlc_codeword(pb, ff_prores_ac_codebook[run_cb], run);
+ encode_vlc_codeword(pb, ff_prores_ac_codebook[lev_cb],
+ abs_level - 1);
+ put_sbits(pb, 1, GET_SIGN(level));
+
+ run_cb = ff_prores_run_to_cb_index[FFMIN(run, 15)];
+ lev_cb = ff_prores_lev_to_cb_index[FFMIN(abs_level, 9)];
+ run = 0;
+ } else {
+ run++;
+ }
+ }
+ }
+ }
+
+ static int encode_slice_plane(ProresContext *ctx, PutBitContext *pb,
+ const uint16_t *src, int linesize,
+ int mbs_per_slice, DCTELEM *blocks,
+ int blocks_per_mb, int plane_size_factor,
+ const int16_t *qmat)
+ {
+ int blocks_per_slice, saved_pos;
+
+ saved_pos = put_bits_count(pb);
+ blocks_per_slice = mbs_per_slice * blocks_per_mb;
+
+ encode_dcs(pb, blocks, blocks_per_slice, qmat[0]);
+ encode_acs(pb, blocks, blocks_per_slice, plane_size_factor,
+ ctx->scantable.permutated, qmat);
+ flush_put_bits(pb);
+
+ return (put_bits_count(pb) - saved_pos) >> 3;
+ }
+
+ static int encode_slice(AVCodecContext *avctx, const AVFrame *pic,
+ PutBitContext *pb,
+ int sizes[4], int x, int y, int quant,
+ int mbs_per_slice)
+ {
+ ProresContext *ctx = avctx->priv_data;
+ int i, xp, yp;
+ int total_size = 0;
+ const uint16_t *src;
+ int slice_width_factor = av_log2(mbs_per_slice);
+ int num_cblocks, pwidth;
+ int plane_factor, is_chroma;
+
+ for (i = 0; i < ctx->num_planes; i++) {
+ is_chroma = (i == 1 || i == 2);
+ plane_factor = slice_width_factor + 2;
+ if (is_chroma)
+ plane_factor += ctx->chroma_factor - 3;
+ if (!is_chroma || ctx->chroma_factor == CFACTOR_Y444) {
+ xp = x << 4;
+ yp = y << 4;
+ num_cblocks = 4;
+ pwidth = avctx->width;
+ } else {
+ xp = x << 3;
+ yp = y << 4;
+ num_cblocks = 2;
+ pwidth = avctx->width >> 1;
+ }
+ src = (const uint16_t*)(pic->data[i] + yp * pic->linesize[i]) + xp;
+
+ get_slice_data(ctx, src, pic->linesize[i], xp, yp,
+ pwidth, avctx->height, ctx->blocks[0],
+ mbs_per_slice, num_cblocks);
+ sizes[i] = encode_slice_plane(ctx, pb, src, pic->linesize[i],
+ mbs_per_slice, ctx->blocks[0],
+ num_cblocks, plane_factor,
+ ctx->quants[quant]);
+ total_size += sizes[i];
+ }
+ return total_size;
+ }
+
+ static inline int estimate_vlc(uint8_t codebook, int val)
+ {
+ unsigned int rice_order, exp_order, switch_bits, switch_val;
+ int exponent;
+
+ /* number of prefix bits to switch between Rice and expGolomb */
+ switch_bits = (codebook & 3) + 1;
+ rice_order = codebook >> 5; /* rice code order */
+ exp_order = (codebook >> 2) & 7; /* exp golomb code order */
+
+ switch_val = switch_bits << rice_order;
+
+ if (val >= switch_val) {
+ val -= switch_val - (1 << exp_order);
+ exponent = av_log2(val);
+
+ return exponent * 2 - exp_order + switch_bits + 1;
+ } else {
+ return (val >> rice_order) + rice_order + 1;
+ }
+ }
+
+ static int estimate_dcs(int *error, DCTELEM *blocks, int blocks_per_slice,
+ int scale)
+ {
+ int i;
+ int codebook = 3, code, dc, prev_dc, delta, sign, new_sign;
+ int bits;
+
+ prev_dc = (blocks[0] - 0x4000) / scale;
+ bits = estimate_vlc(FIRST_DC_CB, MAKE_CODE(prev_dc));
+ codebook = 3;
+ blocks += 64;
+ *error += FFABS(blocks[0] - 0x4000) % scale;
+
+ for (i = 1; i < blocks_per_slice; i++, blocks += 64) {
+ dc = (blocks[0] - 0x4000) / scale;
+ *error += FFABS(blocks[0] - 0x4000) % scale;
+ delta = dc - prev_dc;
+ new_sign = GET_SIGN(delta);
+ delta = (delta ^ sign) - sign;
+ code = MAKE_CODE(delta);
+ bits += estimate_vlc(ff_prores_dc_codebook[codebook], code);
+ codebook = (code + (code & 1)) >> 1;
+ codebook = FFMIN(codebook, 3);
+ sign = new_sign;
+ prev_dc = dc;
+ }
+
+ return bits;
+ }
+
+ static int estimate_acs(int *error, DCTELEM *blocks, int blocks_per_slice,
+ int plane_size_factor,
+ const uint8_t *scan, const int16_t *qmat)
+ {
+ int idx, i;
+ int run, level, run_cb, lev_cb;
+ int max_coeffs, abs_level;
+ int bits = 0;
+
+ max_coeffs = blocks_per_slice << 6;
+ run_cb = ff_prores_run_to_cb_index[4];
+ lev_cb = ff_prores_lev_to_cb_index[2];
+ run = 0;
+
+ for (i = 1; i < 64; i++) {
+ for (idx = scan[i]; idx < max_coeffs; idx += 64) {
+ level = blocks[idx] / qmat[scan[i]];
+ *error += FFABS(blocks[idx]) % qmat[scan[i]];
+ if (level) {
+ abs_level = FFABS(level);
+ bits += estimate_vlc(ff_prores_ac_codebook[run_cb], run);
+ bits += estimate_vlc(ff_prores_ac_codebook[lev_cb],
+ abs_level - 1) + 1;
+
+ run_cb = ff_prores_run_to_cb_index[FFMIN(run, 15)];
+ lev_cb = ff_prores_lev_to_cb_index[FFMIN(abs_level, 9)];
+ run = 0;
+ } else {
+ run++;
+ }
+ }
+ }
+
+ return bits;
+ }
+
+ static int estimate_slice_plane(ProresContext *ctx, int *error, int plane,
+ const uint16_t *src, int linesize,
+ int mbs_per_slice,
+ int blocks_per_mb, int plane_size_factor,
+ const int16_t *qmat)
+ {
+ int blocks_per_slice;
+ int bits;
+
+ blocks_per_slice = mbs_per_slice * blocks_per_mb;
+
+ bits = estimate_dcs(error, ctx->blocks[plane], blocks_per_slice, qmat[0]);
+ bits += estimate_acs(error, ctx->blocks[plane], blocks_per_slice,
+ plane_size_factor, ctx->scantable.permutated, qmat);
+
+ return FFALIGN(bits, 8);
+ }
+
+ static int find_slice_quant(AVCodecContext *avctx, const AVFrame *pic,
+ int trellis_node, int x, int y, int mbs_per_slice)
+ {
+ ProresContext *ctx = avctx->priv_data;
+ int i, q, pq, xp, yp;
+ const uint16_t *src;
+ int slice_width_factor = av_log2(mbs_per_slice);
+ int num_cblocks[MAX_PLANES], pwidth;
+ int plane_factor[MAX_PLANES], is_chroma[MAX_PLANES];
+ const int min_quant = ctx->profile_info->min_quant;
+ const int max_quant = ctx->profile_info->max_quant;
+ int error, bits, bits_limit;
+ int mbs, prev, cur, new_score;
+ int slice_bits[TRELLIS_WIDTH], slice_score[TRELLIS_WIDTH];
+
+ mbs = x + mbs_per_slice;
+
+ for (i = 0; i < ctx->num_planes; i++) {
+ is_chroma[i] = (i == 1 || i == 2);
+ plane_factor[i] = slice_width_factor + 2;
+ if (is_chroma[i])
+ plane_factor[i] += ctx->chroma_factor - 3;
+ if (!is_chroma[i] || ctx->chroma_factor == CFACTOR_Y444) {
+ xp = x << 4;
+ yp = y << 4;
+ num_cblocks[i] = 4;
+ pwidth = avctx->width;
+ } else {
+ xp = x << 3;
+ yp = y << 4;
+ num_cblocks[i] = 2;
+ pwidth = avctx->width >> 1;
+ }
+ src = (const uint16_t*)(pic->data[i] + yp * pic->linesize[i]) + xp;
+
+ get_slice_data(ctx, src, pic->linesize[i], xp, yp,
+ pwidth, avctx->height, ctx->blocks[i],
+ mbs_per_slice, num_cblocks[i]);
+ }
+
+ for (q = min_quant; q <= max_quant; q++) {
+ ctx->nodes[trellis_node + q].prev_node = -1;
+ ctx->nodes[trellis_node + q].quant = q;
+ }
+
+ // todo: maybe perform coarser quantising to fit into frame size when needed
+ for (q = min_quant; q <= max_quant; q++) {
+ bits = 0;
+ error = 0;
+ for (i = 0; i < ctx->num_planes; i++) {
+ bits += estimate_slice_plane(ctx, &error, i,
+ src, pic->linesize[i],
+ mbs_per_slice,
+ num_cblocks[i], plane_factor[i],
+ ctx->quants[q]);
+ }
+ if (bits > 65000 * 8) {
+ error = SCORE_LIMIT;
+ break;
+ }
+ slice_bits[q] = bits;
+ slice_score[q] = error;
+ }
+
+ bits_limit = mbs * ctx->bits_per_mb;
+ for (pq = min_quant; pq <= max_quant; pq++) {
+ prev = trellis_node - TRELLIS_WIDTH + pq;
+
+ for (q = min_quant; q <= max_quant; q++) {
+ cur = trellis_node + q;
+
+ bits = ctx->nodes[prev].bits + slice_bits[q];
+ error = slice_score[q];
+ if (bits > bits_limit)
+ error = SCORE_LIMIT;
+
+ if (ctx->nodes[prev].score < SCORE_LIMIT && error < SCORE_LIMIT)
+ new_score = ctx->nodes[prev].score + error;
+ else
+ new_score = SCORE_LIMIT;
+ if (ctx->nodes[cur].prev_node == -1 ||
+ ctx->nodes[cur].score >= new_score) {
+
+ ctx->nodes[cur].bits = bits;
+ ctx->nodes[cur].score = new_score;
+ ctx->nodes[cur].prev_node = prev;
+ }
+ }
+ }
+
+ error = ctx->nodes[trellis_node + min_quant].score;
+ pq = trellis_node + min_quant;
+ for (q = min_quant + 1; q <= max_quant; q++) {
+ if (ctx->nodes[trellis_node + q].score <= error) {
+ error = ctx->nodes[trellis_node + q].score;
+ pq = trellis_node + q;
+ }
+ }
+
+ return pq;
+ }
+
+ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *pic, int *got_packet)
+ {
+ ProresContext *ctx = avctx->priv_data;
+ uint8_t *orig_buf, *buf, *slice_hdr, *slice_sizes, *tmp;
+ uint8_t *picture_size_pos;
+ PutBitContext pb;
+ int x, y, i, mb, q = 0;
+ int sizes[4] = { 0 };
+ int slice_hdr_size = 2 + 2 * (ctx->num_planes - 1);
+ int frame_size, picture_size, slice_size;
+ int mbs_per_slice = ctx->mbs_per_slice;
+ int pkt_size, ret;
+
+ *avctx->coded_frame = *pic;
+ avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
+ avctx->coded_frame->key_frame = 1;
+
+ pkt_size = ctx->mb_width * ctx->mb_height * 64 * 3 * 12
+ + ctx->num_slices * 2 + 200 + FF_MIN_BUFFER_SIZE;
+
+ if ((ret = ff_alloc_packet(pkt, pkt_size)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+ return ret;
+ }
+
+ orig_buf = pkt->data;
+
+ // frame atom
+ orig_buf += 4; // frame size
+ bytestream_put_be32 (&orig_buf, FRAME_ID); // frame container ID
+ buf = orig_buf;
+
+ // frame header
+ tmp = buf;
+ buf += 2; // frame header size will be stored here
+ bytestream_put_be16 (&buf, 0); // version 1
+ bytestream_put_buffer(&buf, "Lavc", 4); // creator
+ bytestream_put_be16 (&buf, avctx->width);
+ bytestream_put_be16 (&buf, avctx->height);
+ bytestream_put_byte (&buf, ctx->chroma_factor << 6); // frame flags
+ bytestream_put_byte (&buf, 0); // reserved
+ bytestream_put_byte (&buf, 0); // primaries
+ bytestream_put_byte (&buf, 0); // transfer function
+ bytestream_put_byte (&buf, 6); // colour matrix - ITU-R BT.601-4
+ bytestream_put_byte (&buf, 0x40); // source format and alpha information
+ bytestream_put_byte (&buf, 0); // reserved
+ bytestream_put_byte (&buf, 0x03); // matrix flags - both matrices are present
+ // luma quantisation matrix
+ for (i = 0; i < 64; i++)
+ bytestream_put_byte(&buf, ctx->profile_info->quant[i]);
+ // chroma quantisation matrix
+ for (i = 0; i < 64; i++)
+ bytestream_put_byte(&buf, ctx->profile_info->quant[i]);
+ bytestream_put_be16 (&tmp, buf - orig_buf); // write back frame header size
+
+ // picture header
+ picture_size_pos = buf + 1;
+ bytestream_put_byte (&buf, 0x40); // picture header size (in bits)
+ buf += 4; // picture data size will be stored here
+ bytestream_put_be16 (&buf, ctx->num_slices); // total number of slices
+ bytestream_put_byte (&buf, av_log2(ctx->mbs_per_slice) << 4); // slice width and height in MBs
+
+ // seek table - will be filled during slice encoding
+ slice_sizes = buf;
+ buf += ctx->num_slices * 2;
+
+ // slices
+ for (y = 0; y < ctx->mb_height; y++) {
+ mbs_per_slice = ctx->mbs_per_slice;
+ for (x = mb = 0; x < ctx->mb_width; x += mbs_per_slice, mb++) {
+ while (ctx->mb_width - x < mbs_per_slice)
+ mbs_per_slice >>= 1;
+ q = find_slice_quant(avctx, pic, (mb + 1) * TRELLIS_WIDTH, x, y,
+ mbs_per_slice);
+ }
+
+ for (x = ctx->slices_width - 1; x >= 0; x--) {
+ ctx->slice_q[x] = ctx->nodes[q].quant;
+ q = ctx->nodes[q].prev_node;
+ }
+
+ mbs_per_slice = ctx->mbs_per_slice;
+ for (x = mb = 0; x < ctx->mb_width; x += mbs_per_slice, mb++) {
+ q = ctx->slice_q[mb];
+
+ while (ctx->mb_width - x < mbs_per_slice)
+ mbs_per_slice >>= 1;
+
+ bytestream_put_byte(&buf, slice_hdr_size << 3);
+ slice_hdr = buf;
+ buf += slice_hdr_size - 1;
+ init_put_bits(&pb, buf, (pkt_size - (buf - orig_buf)) * 8);
+ encode_slice(avctx, pic, &pb, sizes, x, y, q, mbs_per_slice);
+
+ bytestream_put_byte(&slice_hdr, q);
+ slice_size = slice_hdr_size + sizes[ctx->num_planes - 1];
+ for (i = 0; i < ctx->num_planes - 1; i++) {
+ bytestream_put_be16(&slice_hdr, sizes[i]);
+ slice_size += sizes[i];
+ }
+ bytestream_put_be16(&slice_sizes, slice_size);
+ buf += slice_size - slice_hdr_size;
+ }
+ }
+
+ orig_buf -= 8;
+ frame_size = buf - orig_buf;
+ picture_size = buf - picture_size_pos - 6;
+ bytestream_put_be32(&orig_buf, frame_size);
+ bytestream_put_be32(&picture_size_pos, picture_size);
+
+ pkt->size = frame_size;
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ *got_packet = 1;
+
+ return 0;
+ }
+
+ static av_cold int encode_close(AVCodecContext *avctx)
+ {
+ ProresContext *ctx = avctx->priv_data;
+
+ if (avctx->coded_frame->data[0])
+ avctx->release_buffer(avctx, avctx->coded_frame);
+
+ av_freep(&avctx->coded_frame);
+
+ av_freep(&ctx->nodes);
+ av_freep(&ctx->slice_q);
+
+ return 0;
+ }
+
+ static av_cold int encode_init(AVCodecContext *avctx)
+ {
+ ProresContext *ctx = avctx->priv_data;
+ int mps;
+ int i, j;
+ int min_quant, max_quant;
+
+ avctx->bits_per_raw_sample = 10;
+ avctx->coded_frame = avcodec_alloc_frame();
+ if (!avctx->coded_frame)
+ return AVERROR(ENOMEM);
+
-AVCodec ff_prores_encoder = {
- .name = "prores",
++ ff_proresdsp_init(&ctx->dsp, avctx);
+ ff_init_scantable(ctx->dsp.dct_permutation, &ctx->scantable,
+ ff_prores_progressive_scan);
+
+ mps = ctx->mbs_per_slice;
+ if (mps & (mps - 1)) {
+ av_log(avctx, AV_LOG_ERROR,
+ "there should be an integer power of two MBs per slice\n");
+ return AVERROR(EINVAL);
+ }
+
+ ctx->chroma_factor = avctx->pix_fmt == PIX_FMT_YUV422P10
+ ? CFACTOR_Y422
+ : CFACTOR_Y444;
+ ctx->profile_info = prores_profile_info + ctx->profile;
+ ctx->num_planes = 3;
+
+ ctx->mb_width = FFALIGN(avctx->width, 16) >> 4;
+ ctx->mb_height = FFALIGN(avctx->height, 16) >> 4;
+ ctx->slices_width = ctx->mb_width / mps;
+ ctx->slices_width += av_popcount(ctx->mb_width - ctx->slices_width * mps);
+ ctx->num_slices = ctx->mb_height * ctx->slices_width;
+
+ for (i = 0; i < NUM_MB_LIMITS - 1; i++)
+ if (prores_mb_limits[i] >= ctx->mb_width * ctx->mb_height)
+ break;
+ ctx->bits_per_mb = ctx->profile_info->br_tab[i];
+
+ min_quant = ctx->profile_info->min_quant;
+ max_quant = ctx->profile_info->max_quant;
+ for (i = min_quant; i <= max_quant; i++) {
+ for (j = 0; j < 64; j++)
+ ctx->quants[i][j] = ctx->profile_info->quant[j] * i;
+ }
+
+ avctx->codec_tag = ctx->profile_info->tag;
+
+ av_log(avctx, AV_LOG_DEBUG, "profile %d, %d slices, %d bits per MB\n",
+ ctx->profile, ctx->num_slices, ctx->bits_per_mb);
+
+ ctx->nodes = av_malloc((ctx->slices_width + 1) * TRELLIS_WIDTH
+ * sizeof(*ctx->nodes));
+ if (!ctx->nodes) {
+ encode_close(avctx);
+ return AVERROR(ENOMEM);
+ }
+ for (i = min_quant; i <= max_quant; i++) {
+ ctx->nodes[i].prev_node = -1;
+ ctx->nodes[i].bits = 0;
+ ctx->nodes[i].score = 0;
+ }
+
+ ctx->slice_q = av_malloc(ctx->slices_width * sizeof(*ctx->slice_q));
+ if (!ctx->slice_q) {
+ encode_close(avctx);
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+ }
+
+ #define OFFSET(x) offsetof(ProresContext, x)
+ #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+
+ static const AVOption options[] = {
+ { "mbs_per_slice", "macroblocks per slice", OFFSET(mbs_per_slice),
+ AV_OPT_TYPE_INT, { 8 }, 1, MAX_MBS_PER_SLICE, VE },
+ { "profile", NULL, OFFSET(profile), AV_OPT_TYPE_INT,
+ { PRORES_PROFILE_STANDARD },
+ PRORES_PROFILE_PROXY, PRORES_PROFILE_HQ, VE, "profile" },
+ { "proxy", NULL, 0, AV_OPT_TYPE_CONST, { PRORES_PROFILE_PROXY },
+ 0, 0, VE, "profile" },
+ { "lt", NULL, 0, AV_OPT_TYPE_CONST, { PRORES_PROFILE_LT },
+ 0, 0, VE, "profile" },
+ { "standard", NULL, 0, AV_OPT_TYPE_CONST, { PRORES_PROFILE_STANDARD },
+ 0, 0, VE, "profile" },
+ { "hq", NULL, 0, AV_OPT_TYPE_CONST, { PRORES_PROFILE_HQ },
+ 0, 0, VE, "profile" },
+ { NULL }
+ };
+
+ static const AVClass proresenc_class = {
+ .class_name = "ProRes encoder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+ };
+
++AVCodec ff_prores_kostya_encoder = {
++ .name = "prores_kostya",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_PRORES,
+ .priv_data_size = sizeof(ProresContext),
+ .init = encode_init,
+ .close = encode_close,
+ .encode2 = encode_frame,
+ .long_name = NULL_IF_CONFIG_SMALL("Apple ProRes (iCodec Pro)"),
+ .pix_fmts = (const enum PixelFormat[]) {
+ PIX_FMT_YUV422P10, PIX_FMT_YUV444P10, PIX_FMT_NONE
+ },
+ .priv_class = &proresenc_class,
+ };
OSDN Git Service
