diff options
-rw-r--r-- | Changelog | 1 | ||||
-rw-r--r-- | doc/general.texi | 2 | ||||
-rw-r--r-- | libavcodec/Makefile | 1 | ||||
-rw-r--r-- | libavcodec/allcodecs.c | 2 | ||||
-rw-r--r-- | libavcodec/proresdsp.c | 17 | ||||
-rw-r--r-- | libavcodec/proresdsp.h | 3 | ||||
-rw-r--r-- | libavcodec/proresenc.c | 836 | ||||
-rw-r--r-- | libavcodec/version.h | 2 |
8 files changed, 861 insertions, 3 deletions
@@ -7,6 +7,7 @@ version <next>: - Support for fragmentation in the mov/mp4 muxer - ISMV (Smooth Streaming) muxer - CDXL demuxer and decoder +- Apple ProRes encoder version 0.8: diff --git a/doc/general.texi b/doc/general.texi index 14624bc..7471802 100644 --- a/doc/general.texi +++ b/doc/general.texi @@ -406,7 +406,7 @@ 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 diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 6d4ad95..298b521 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -302,6 +302,7 @@ OBJS-$(CONFIG_PNG_ENCODER) += png.o pngenc.o OBJS-$(CONFIG_PPM_DECODER) += pnmdec.o pnm.o OBJS-$(CONFIG_PPM_ENCODER) += pnmenc.o pnm.o OBJS-$(CONFIG_PRORES_DECODER) += proresdec.o proresdata.o proresdsp.o +OBJS-$(CONFIG_PRORES_ENCODER) += proresenc.o proresdata.o proresdsp.o OBJS-$(CONFIG_PTX_DECODER) += ptx.o OBJS-$(CONFIG_QCELP_DECODER) += qcelpdec.o celp_math.o \ celp_filters.o acelp_vectors.o \ diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 1c72177..de37083 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -168,7 +168,7 @@ 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 (PTX, ptx); REGISTER_DECODER (QDRAW, qdraw); REGISTER_DECODER (QPEG, qpeg); diff --git a/libavcodec/proresdsp.c b/libavcodec/proresdsp.c index 7e753e9..e19eed2 100644 --- a/libavcodec/proresdsp.c +++ b/libavcodec/proresdsp.c @@ -51,13 +51,30 @@ static void prores_idct_put_c(uint16_t *out, int linesize, DCTELEM *block, const put_pixels(out, linesize >> 1, block); } +static void prores_fdct_c(const uint16_t *src, int linesize, DCTELEM *block) +{ + int x, y; + const uint16_t *tsrc = src; + + for (y = 0; y < 8; y++) { + for (x = 0; x < 8; x++) + block[y * 8 + x] = tsrc[x]; + tsrc += linesize >> 1; + } + ff_jpeg_fdct_islow_10(block); +} + void ff_proresdsp_init(ProresDSPContext *dsp) { dsp->idct_put = prores_idct_put_c; dsp->idct_permutation_type = FF_NO_IDCT_PERM; + dsp->fdct = prores_fdct_c; + dsp->dct_permutation_type = FF_NO_IDCT_PERM; if (HAVE_MMX) ff_proresdsp_x86_init(dsp); ff_init_scantable_permutation(dsp->idct_permutation, dsp->idct_permutation_type); + ff_init_scantable_permutation(dsp->dct_permutation, + dsp->dct_permutation_type); } diff --git a/libavcodec/proresdsp.h b/libavcodec/proresdsp.h index 8b864fa..f657825 100644 --- a/libavcodec/proresdsp.h +++ b/libavcodec/proresdsp.h @@ -30,7 +30,10 @@ typedef struct { int idct_permutation_type; uint8_t idct_permutation[64]; + int dct_permutation_type; + uint8_t dct_permutation[64]; void (* idct_put) (uint16_t *out, int linesize, DCTELEM *block, const int16_t *qmat); + void (* fdct) (const uint16_t *src, int linesize, DCTELEM *block); } ProresDSPContext; void ff_proresdsp_init(ProresDSPContext *dsp); diff --git a/libavcodec/proresenc.c b/libavcodec/proresenc.c new file mode 100644 index 0000000..c41982f --- /dev/null +++ b/libavcodec/proresenc.c @@ -0,0 +1,836 @@ +/* + * 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); + + ff_proresdsp_init(&ctx->dsp); + 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_encoder = { + .name = "prores", + .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, +}; diff --git a/libavcodec/version.h b/libavcodec/version.h index 56aadb2..bf2848d 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -21,7 +21,7 @@ #define AVCODEC_VERSION_H #define LIBAVCODEC_VERSION_MAJOR 54 -#define LIBAVCODEC_VERSION_MINOR 1 +#define LIBAVCODEC_VERSION_MINOR 2 #define LIBAVCODEC_VERSION_MICRO 0 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ |