This source file includes following definitions.
- get_slice_data
- get_alpha_data
- encode_vlc_codeword
- encode_dcs
- encode_acs
- encode_slice_plane
- put_alpha_diff
- put_alpha_run
- encode_alpha_plane
- encode_slice
- estimate_vlc
- estimate_dcs
- estimate_acs
- estimate_slice_plane
- est_alpha_diff
- estimate_alpha_plane
- find_slice_quant
- find_quant_thread
- encode_frame
- encode_close
- prores_fdct
- encode_init
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "fdctdsp.h"
#include "put_bits.h"
#include "profiles.h"
#include "bytestream.h"
#include "internal.h"
#include "proresdata.h"
#define CFACTOR_Y422 2
#define CFACTOR_Y444 3
#define MAX_MBS_PER_SLICE 8
#define MAX_PLANES 4
enum {
PRORES_PROFILE_AUTO = -1,
PRORES_PROFILE_PROXY = 0,
PRORES_PROFILE_LT,
PRORES_PROFILE_STANDARD,
PRORES_PROFILE_HQ,
PRORES_PROFILE_4444,
PRORES_PROFILE_4444XQ,
};
enum {
QUANT_MAT_PROXY = 0,
QUANT_MAT_PROXY_CHROMA,
QUANT_MAT_LT,
QUANT_MAT_STANDARD,
QUANT_MAT_HQ,
QUANT_MAT_XQ_LUMA,
QUANT_MAT_DEFAULT,
};
static const uint8_t prores_quant_matrices[][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, 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,
},
{
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 3,
2, 2, 2, 2, 2, 2, 3, 3,
2, 2, 2, 2, 2, 3, 3, 3,
2, 2, 2, 2, 3, 3, 3, 4,
2, 2, 2, 2, 3, 3, 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, 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, 4, 4, 4, 4,
},
};
#define NUM_MB_LIMITS 4
static const int prores_mb_limits[NUM_MB_LIMITS] = {
1620,
2700,
6075,
9216,
};
static const struct prores_profile {
const char *full_name;
uint32_t tag;
int min_quant;
int max_quant;
int br_tab[NUM_MB_LIMITS];
int quant;
int quant_chroma;
} prores_profile_info[6] = {
{
.full_name = "proxy",
.tag = MKTAG('a', 'p', 'c', 'o'),
.min_quant = 4,
.max_quant = 8,
.br_tab = { 300, 242, 220, 194 },
.quant = QUANT_MAT_PROXY,
.quant_chroma = QUANT_MAT_PROXY_CHROMA,
},
{
.full_name = "LT",
.tag = MKTAG('a', 'p', 'c', 's'),
.min_quant = 1,
.max_quant = 9,
.br_tab = { 720, 560, 490, 440 },
.quant = QUANT_MAT_LT,
.quant_chroma = QUANT_MAT_LT,
},
{
.full_name = "standard",
.tag = MKTAG('a', 'p', 'c', 'n'),
.min_quant = 1,
.max_quant = 6,
.br_tab = { 1050, 808, 710, 632 },
.quant = QUANT_MAT_STANDARD,
.quant_chroma = QUANT_MAT_STANDARD,
},
{
.full_name = "high quality",
.tag = MKTAG('a', 'p', 'c', 'h'),
.min_quant = 1,
.max_quant = 6,
.br_tab = { 1566, 1216, 1070, 950 },
.quant = QUANT_MAT_HQ,
.quant_chroma = QUANT_MAT_HQ,
},
{
.full_name = "4444",
.tag = MKTAG('a', 'p', '4', 'h'),
.min_quant = 1,
.max_quant = 6,
.br_tab = { 2350, 1828, 1600, 1425 },
.quant = QUANT_MAT_HQ,
.quant_chroma = QUANT_MAT_HQ,
},
{
.full_name = "4444XQ",
.tag = MKTAG('a', 'p', '4', 'x'),
.min_quant = 1,
.max_quant = 6,
.br_tab = { 3525, 2742, 2400, 2137 },
.quant = QUANT_MAT_HQ,
.quant_chroma = QUANT_MAT_HQ,
}
};
#define TRELLIS_WIDTH 16
#define SCORE_LIMIT INT_MAX / 2
struct TrellisNode {
int prev_node;
int quant;
int bits;
int score;
};
#define MAX_STORED_Q 16
typedef struct ProresThreadData {
DECLARE_ALIGNED(16, int16_t, blocks)[MAX_PLANES][64 * 4 * MAX_MBS_PER_SLICE];
DECLARE_ALIGNED(16, uint16_t, emu_buf)[16 * 16];
int16_t custom_q[64];
int16_t custom_chroma_q[64];
struct TrellisNode *nodes;
} ProresThreadData;
typedef struct ProresContext {
AVClass *class;
DECLARE_ALIGNED(16, int16_t, blocks)[MAX_PLANES][64 * 4 * MAX_MBS_PER_SLICE];
DECLARE_ALIGNED(16, uint16_t, emu_buf)[16*16];
int16_t quants[MAX_STORED_Q][64];
int16_t quants_chroma[MAX_STORED_Q][64];
int16_t custom_q[64];
int16_t custom_chroma_q[64];
const uint8_t *quant_mat;
const uint8_t *quant_chroma_mat;
const uint8_t *scantable;
void (*fdct)(FDCTDSPContext *fdsp, const uint16_t *src,
ptrdiff_t linesize, int16_t *block);
FDCTDSPContext fdsp;
const AVFrame *pic;
int mb_width, mb_height;
int mbs_per_slice;
int num_chroma_blocks, chroma_factor;
int slices_width;
int slices_per_picture;
int pictures_per_frame;
int cur_picture_idx;
int num_planes;
int bits_per_mb;
int force_quant;
int alpha_bits;
int warn;
char *vendor;
int quant_sel;
int frame_size_upper_bound;
int profile;
const struct prores_profile *profile_info;
int *slice_q;
ProresThreadData *tdata;
} ProresContext;
static void get_slice_data(ProresContext *ctx, const uint16_t *src,
ptrdiff_t linesize, int x, int y, int w, int h,
int16_t *blocks, uint16_t *emu_buf,
int mbs_per_slice, int blocks_per_mb, int is_chroma)
{
const uint16_t *esrc;
const int mb_width = 4 * blocks_per_mb;
ptrdiff_t 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;
esrc = emu_buf;
elinesize = 16 * sizeof(*emu_buf);
bw = FFMIN(w - x, mb_width);
bh = FFMIN(h - y, 16);
for (j = 0; j < bh; j++) {
memcpy(emu_buf + j * 16,
(const uint8_t*)src + j * linesize,
bw * sizeof(*src));
pix = emu_buf[j * 16 + bw - 1];
for (k = bw; k < mb_width; k++)
emu_buf[j * 16 + k] = pix;
}
for (; j < 16; j++)
memcpy(emu_buf + j * 16,
emu_buf + (bh - 1) * 16,
mb_width * sizeof(*emu_buf));
}
if (!is_chroma) {
ctx->fdct(&ctx->fdsp, esrc, elinesize, blocks);
blocks += 64;
if (blocks_per_mb > 2) {
ctx->fdct(&ctx->fdsp, esrc + 8, elinesize, blocks);
blocks += 64;
}
ctx->fdct(&ctx->fdsp, esrc + elinesize * 4, elinesize, blocks);
blocks += 64;
if (blocks_per_mb > 2) {
ctx->fdct(&ctx->fdsp, esrc + elinesize * 4 + 8, elinesize, blocks);
blocks += 64;
}
} else {
ctx->fdct(&ctx->fdsp, esrc, elinesize, blocks);
blocks += 64;
ctx->fdct(&ctx->fdsp, esrc + elinesize * 4, elinesize, blocks);
blocks += 64;
if (blocks_per_mb > 2) {
ctx->fdct(&ctx->fdsp, esrc + 8, elinesize, blocks);
blocks += 64;
ctx->fdct(&ctx->fdsp, esrc + elinesize * 4 + 8, elinesize, blocks);
blocks += 64;
}
}
x += mb_width;
}
}
static void get_alpha_data(ProresContext *ctx, const uint16_t *src,
ptrdiff_t linesize, int x, int y, int w, int h,
int16_t *blocks, int mbs_per_slice, int abits)
{
const int slice_width = 16 * mbs_per_slice;
int i, j, copy_w, copy_h;
copy_w = FFMIN(w - x, slice_width);
copy_h = FFMIN(h - y, 16);
for (i = 0; i < copy_h; i++) {
memcpy(blocks, src, copy_w * sizeof(*src));
if (abits == 8)
for (j = 0; j < copy_w; j++)
blocks[j] >>= 2;
else
for (j = 0; j < copy_w; j++)
blocks[j] = (blocks[j] << 6) | (blocks[j] >> 4);
for (j = copy_w; j < slice_width; j++)
blocks[j] = blocks[copy_w - 1];
blocks += slice_width;
src += linesize >> 1;
}
for (; i < 16; i++) {
memcpy(blocks, blocks - slice_width, slice_width * sizeof(*blocks));
blocks += slice_width;
}
}
static inline void encode_vlc_codeword(PutBitContext *pb, unsigned codebook, int val)
{
unsigned int rice_order, exp_order, switch_bits, switch_val;
int exponent;
switch_bits = (codebook & 3) + 1;
rice_order = codebook >> 5;
exp_order = (codebook >> 2) & 7;
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, exponent + 1, 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)) * 2) ^ GET_SIGN(x))
static void encode_dcs(PutBitContext *pb, int16_t *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));
sign = 0;
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, int16_t *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, ptrdiff_t linesize,
int mbs_per_slice, int16_t *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, qmat);
flush_put_bits(pb);
return (put_bits_count(pb) - saved_pos) >> 3;
}
static void put_alpha_diff(PutBitContext *pb, int cur, int prev, int abits)
{
const int dbits = (abits == 8) ? 4 : 7;
const int dsize = 1 << dbits - 1;
int diff = cur - prev;
diff = av_mod_uintp2(diff, abits);
if (diff >= (1 << abits) - dsize)
diff -= 1 << abits;
if (diff < -dsize || diff > dsize || !diff) {
put_bits(pb, 1, 1);
put_bits(pb, abits, diff);
} else {
put_bits(pb, 1, 0);
put_bits(pb, dbits - 1, FFABS(diff) - 1);
put_bits(pb, 1, diff < 0);
}
}
static void put_alpha_run(PutBitContext *pb, int run)
{
if (run) {
put_bits(pb, 1, 0);
if (run < 0x10)
put_bits(pb, 4, run);
else
put_bits(pb, 15, run);
} else {
put_bits(pb, 1, 1);
}
}
static int encode_alpha_plane(ProresContext *ctx, PutBitContext *pb,
int mbs_per_slice, uint16_t *blocks,
int quant)
{
const int abits = ctx->alpha_bits;
const int mask = (1 << abits) - 1;
const int num_coeffs = mbs_per_slice * 256;
int saved_pos = put_bits_count(pb);
int prev = mask, cur;
int idx = 0;
int run = 0;
cur = blocks[idx++];
put_alpha_diff(pb, cur, prev, abits);
prev = cur;
do {
cur = blocks[idx++];
if (cur != prev) {
put_alpha_run (pb, run);
put_alpha_diff(pb, cur, prev, abits);
prev = cur;
run = 0;
} else {
run++;
}
} while (idx < num_coeffs);
if (run)
put_alpha_run(pb, run);
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, line_add;
ptrdiff_t linesize;
int plane_factor, is_chroma;
uint16_t *qmat;
uint16_t *qmat_chroma;
if (ctx->pictures_per_frame == 1)
line_add = 0;
else
line_add = ctx->cur_picture_idx ^ !pic->top_field_first;
if (ctx->force_quant) {
qmat = ctx->quants[0];
qmat_chroma = ctx->quants_chroma[0];
} else if (quant < MAX_STORED_Q) {
qmat = ctx->quants[quant];
qmat_chroma = ctx->quants_chroma[quant];
} else {
qmat = ctx->custom_q;
qmat_chroma = ctx->custom_chroma_q;
for (i = 0; i < 64; i++) {
qmat[i] = ctx->quant_mat[i] * quant;
qmat_chroma[i] = ctx->quant_chroma_mat[i] * quant;
}
}
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;
}
linesize = pic->linesize[i] * ctx->pictures_per_frame;
src = (const uint16_t*)(pic->data[i] + yp * linesize +
line_add * pic->linesize[i]) + xp;
if (i < 3) {
get_slice_data(ctx, src, linesize, xp, yp,
pwidth, avctx->height / ctx->pictures_per_frame,
ctx->blocks[0], ctx->emu_buf,
mbs_per_slice, num_cblocks, is_chroma);
if (!is_chroma) {
sizes[i] = encode_slice_plane(ctx, pb, src, linesize,
mbs_per_slice, ctx->blocks[0],
num_cblocks, plane_factor,
qmat);
} else {
sizes[i] = encode_slice_plane(ctx, pb, src, linesize,
mbs_per_slice, ctx->blocks[0],
num_cblocks, plane_factor,
qmat_chroma);
}
} else {
get_alpha_data(ctx, src, linesize, xp, yp,
pwidth, avctx->height / ctx->pictures_per_frame,
ctx->blocks[0], mbs_per_slice, ctx->alpha_bits);
sizes[i] = encode_alpha_plane(ctx, pb, mbs_per_slice,
ctx->blocks[0], quant);
}
total_size += sizes[i];
if (put_bits_left(pb) < 0) {
av_log(avctx, AV_LOG_ERROR,
"Underestimated required buffer size.\n");
return AVERROR_BUG;
}
}
return total_size;
}
static inline int estimate_vlc(unsigned codebook, int val)
{
unsigned int rice_order, exp_order, switch_bits, switch_val;
int exponent;
switch_bits = (codebook & 3) + 1;
rice_order = codebook >> 5;
exp_order = (codebook >> 2) & 7;
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, int16_t *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));
sign = 0;
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, int16_t *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, ptrdiff_t linesize,
int mbs_per_slice,
int blocks_per_mb, int plane_size_factor,
const int16_t *qmat, ProresThreadData *td)
{
int blocks_per_slice;
int bits;
blocks_per_slice = mbs_per_slice * blocks_per_mb;
bits = estimate_dcs(error, td->blocks[plane], blocks_per_slice, qmat[0]);
bits += estimate_acs(error, td->blocks[plane], blocks_per_slice,
plane_size_factor, ctx->scantable, qmat);
return FFALIGN(bits, 8);
}
static int est_alpha_diff(int cur, int prev, int abits)
{
const int dbits = (abits == 8) ? 4 : 7;
const int dsize = 1 << dbits - 1;
int diff = cur - prev;
diff = av_mod_uintp2(diff, abits);
if (diff >= (1 << abits) - dsize)
diff -= 1 << abits;
if (diff < -dsize || diff > dsize || !diff)
return abits + 1;
else
return dbits + 1;
}
static int estimate_alpha_plane(ProresContext *ctx,
const uint16_t *src, ptrdiff_t linesize,
int mbs_per_slice, int16_t *blocks)
{
const int abits = ctx->alpha_bits;
const int mask = (1 << abits) - 1;
const int num_coeffs = mbs_per_slice * 256;
int prev = mask, cur;
int idx = 0;
int run = 0;
int bits;
cur = blocks[idx++];
bits = est_alpha_diff(cur, prev, abits);
prev = cur;
do {
cur = blocks[idx++];
if (cur != prev) {
if (!run)
bits++;
else if (run < 0x10)
bits += 4;
else
bits += 15;
bits += est_alpha_diff(cur, prev, abits);
prev = cur;
run = 0;
} else {
run++;
}
} while (idx < num_coeffs);
if (run) {
if (run < 0x10)
bits += 4;
else
bits += 15;
}
return bits;
}
static int find_slice_quant(AVCodecContext *avctx,
int trellis_node, int x, int y, int mbs_per_slice,
ProresThreadData *td)
{
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];
int overquant;
uint16_t *qmat;
uint16_t *qmat_chroma;
int linesize[4], line_add;
int alpha_bits = 0;
if (ctx->pictures_per_frame == 1)
line_add = 0;
else
line_add = ctx->cur_picture_idx ^ !ctx->pic->top_field_first;
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;
}
linesize[i] = ctx->pic->linesize[i] * ctx->pictures_per_frame;
src = (const uint16_t *)(ctx->pic->data[i] + yp * linesize[i] +
line_add * ctx->pic->linesize[i]) + xp;
if (i < 3) {
get_slice_data(ctx, src, linesize[i], xp, yp,
pwidth, avctx->height / ctx->pictures_per_frame,
td->blocks[i], td->emu_buf,
mbs_per_slice, num_cblocks[i], is_chroma[i]);
} else {
get_alpha_data(ctx, src, linesize[i], xp, yp,
pwidth, avctx->height / ctx->pictures_per_frame,
td->blocks[i], mbs_per_slice, ctx->alpha_bits);
}
}
for (q = min_quant; q < max_quant + 2; q++) {
td->nodes[trellis_node + q].prev_node = -1;
td->nodes[trellis_node + q].quant = q;
}
if (ctx->alpha_bits)
alpha_bits = estimate_alpha_plane(ctx, src, linesize[3],
mbs_per_slice, td->blocks[3]);
for (q = min_quant; q <= max_quant; q++) {
bits = alpha_bits;
error = 0;
bits += estimate_slice_plane(ctx, &error, 0,
src, linesize[0],
mbs_per_slice,
num_cblocks[0], plane_factor[0],
ctx->quants[q], td);
for (i = 1; i < ctx->num_planes - !!ctx->alpha_bits; i++) {
bits += estimate_slice_plane(ctx, &error, i,
src, linesize[i],
mbs_per_slice,
num_cblocks[i], plane_factor[i],
ctx->quants_chroma[q], td);
}
if (bits > 65000 * 8)
error = SCORE_LIMIT;
slice_bits[q] = bits;
slice_score[q] = error;
}
if (slice_bits[max_quant] <= ctx->bits_per_mb * mbs_per_slice) {
slice_bits[max_quant + 1] = slice_bits[max_quant];
slice_score[max_quant + 1] = slice_score[max_quant] + 1;
overquant = max_quant;
} else {
for (q = max_quant + 1; q < 128; q++) {
bits = alpha_bits;
error = 0;
if (q < MAX_STORED_Q) {
qmat = ctx->quants[q];
qmat_chroma = ctx->quants_chroma[q];
} else {
qmat = td->custom_q;
qmat_chroma = td->custom_chroma_q;
for (i = 0; i < 64; i++) {
qmat[i] = ctx->quant_mat[i] * q;
qmat_chroma[i] = ctx->quant_chroma_mat[i] * q;
}
}
bits += estimate_slice_plane(ctx, &error, 0,
src, linesize[0],
mbs_per_slice,
num_cblocks[0], plane_factor[0],
qmat, td);
for (i = 1; i < ctx->num_planes - !!ctx->alpha_bits; i++) {
bits += estimate_slice_plane(ctx, &error, i,
src, linesize[i],
mbs_per_slice,
num_cblocks[i], plane_factor[i],
qmat_chroma, td);
}
if (bits <= ctx->bits_per_mb * mbs_per_slice)
break;
}
slice_bits[max_quant + 1] = bits;
slice_score[max_quant + 1] = error;
overquant = q;
}
td->nodes[trellis_node + max_quant + 1].quant = overquant;
bits_limit = mbs * ctx->bits_per_mb;
for (pq = min_quant; pq < max_quant + 2; pq++) {
prev = trellis_node - TRELLIS_WIDTH + pq;
for (q = min_quant; q < max_quant + 2; q++) {
cur = trellis_node + q;
bits = td->nodes[prev].bits + slice_bits[q];
error = slice_score[q];
if (bits > bits_limit)
error = SCORE_LIMIT;
if (td->nodes[prev].score < SCORE_LIMIT && error < SCORE_LIMIT)
new_score = td->nodes[prev].score + error;
else
new_score = SCORE_LIMIT;
if (td->nodes[cur].prev_node == -1 ||
td->nodes[cur].score >= new_score) {
td->nodes[cur].bits = bits;
td->nodes[cur].score = new_score;
td->nodes[cur].prev_node = prev;
}
}
}
error = td->nodes[trellis_node + min_quant].score;
pq = trellis_node + min_quant;
for (q = min_quant + 1; q < max_quant + 2; q++) {
if (td->nodes[trellis_node + q].score <= error) {
error = td->nodes[trellis_node + q].score;
pq = trellis_node + q;
}
}
return pq;
}
static int find_quant_thread(AVCodecContext *avctx, void *arg,
int jobnr, int threadnr)
{
ProresContext *ctx = avctx->priv_data;
ProresThreadData *td = ctx->tdata + threadnr;
int mbs_per_slice = ctx->mbs_per_slice;
int x, y = jobnr, mb, q = 0;
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,
(mb + 1) * TRELLIS_WIDTH, x, y,
mbs_per_slice, td);
}
for (x = ctx->slices_width - 1; x >= 0; x--) {
ctx->slice_q[x + y * ctx->slices_width] = td->nodes[q].quant;
q = td->nodes[q].prev_node;
}
return 0;
}
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 pkt_size, ret;
int max_slice_size = (ctx->frame_size_upper_bound - 200) / (ctx->pictures_per_frame * ctx->slices_per_picture + 1);
uint8_t frame_flags;
ctx->pic = pic;
pkt_size = ctx->frame_size_upper_bound;
if ((ret = ff_alloc_packet2(avctx, pkt, pkt_size + AV_INPUT_BUFFER_MIN_SIZE, 0)) < 0)
return ret;
orig_buf = pkt->data;
orig_buf += 4;
bytestream_put_be32 (&orig_buf, FRAME_ID);
buf = orig_buf;
tmp = buf;
buf += 2;
bytestream_put_be16 (&buf, 0);
bytestream_put_buffer(&buf, ctx->vendor, 4);
bytestream_put_be16 (&buf, avctx->width);
bytestream_put_be16 (&buf, avctx->height);
frame_flags = ctx->chroma_factor << 6;
if (avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT)
frame_flags |= pic->top_field_first ? 0x04 : 0x08;
bytestream_put_byte (&buf, frame_flags);
bytestream_put_byte (&buf, 0);
bytestream_put_byte (&buf, pic->color_primaries);
bytestream_put_byte (&buf, pic->color_trc);
bytestream_put_byte (&buf, pic->colorspace);
bytestream_put_byte (&buf, 0x40 | (ctx->alpha_bits >> 3));
bytestream_put_byte (&buf, 0);
if (ctx->quant_sel != QUANT_MAT_DEFAULT) {
bytestream_put_byte (&buf, 0x03);
for (i = 0; i < 64; i++)
bytestream_put_byte(&buf, ctx->quant_mat[i]);
for (i = 0; i < 64; i++)
bytestream_put_byte(&buf, ctx->quant_mat[i]);
} else {
bytestream_put_byte (&buf, 0x00);
}
bytestream_put_be16 (&tmp, buf - orig_buf);
for (ctx->cur_picture_idx = 0;
ctx->cur_picture_idx < ctx->pictures_per_frame;
ctx->cur_picture_idx++) {
picture_size_pos = buf + 1;
bytestream_put_byte (&buf, 0x40);
buf += 4;
bytestream_put_be16 (&buf, ctx->slices_per_picture);
bytestream_put_byte (&buf, av_log2(ctx->mbs_per_slice) << 4);
slice_sizes = buf;
buf += ctx->slices_per_picture * 2;
if (!ctx->force_quant) {
ret = avctx->execute2(avctx, find_quant_thread, (void*)pic, NULL,
ctx->mb_height);
if (ret)
return ret;
}
for (y = 0; y < ctx->mb_height; y++) {
int mbs_per_slice = ctx->mbs_per_slice;
for (x = mb = 0; x < ctx->mb_width; x += mbs_per_slice, mb++) {
q = ctx->force_quant ? ctx->force_quant
: ctx->slice_q[mb + y * ctx->slices_width];
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;
if (pkt_size <= buf - orig_buf + 2 * max_slice_size) {
uint8_t *start = pkt->data;
int delta = 200 + (ctx->pictures_per_frame *
ctx->slices_per_picture + 1) *
max_slice_size - pkt_size;
delta = FFMAX(delta, 2 * max_slice_size);
ctx->frame_size_upper_bound += delta;
if (!ctx->warn) {
avpriv_request_sample(avctx,
"Packet too small: is %i,"
" needs %i (slice: %i). "
"Correct allocation",
pkt_size, delta, max_slice_size);
ctx->warn = 1;
}
ret = av_grow_packet(pkt, delta);
if (ret < 0)
return ret;
pkt_size += delta;
orig_buf = pkt->data + (orig_buf - start);
buf = pkt->data + (buf - start);
picture_size_pos = pkt->data + (picture_size_pos - start);
slice_sizes = pkt->data + (slice_sizes - start);
slice_hdr = pkt->data + (slice_hdr - start);
tmp = pkt->data + (tmp - start);
}
init_put_bits(&pb, buf, (pkt_size - (buf - orig_buf)));
ret = encode_slice(avctx, pic, &pb, sizes, x, y, q,
mbs_per_slice);
if (ret < 0)
return ret;
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;
if (max_slice_size < slice_size)
max_slice_size = slice_size;
}
}
picture_size = buf - (picture_size_pos - 1);
bytestream_put_be32(&picture_size_pos, picture_size);
}
orig_buf -= 8;
frame_size = buf - orig_buf;
bytestream_put_be32(&orig_buf, frame_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;
int i;
if (ctx->tdata) {
for (i = 0; i < avctx->thread_count; i++)
av_freep(&ctx->tdata[i].nodes);
}
av_freep(&ctx->tdata);
av_freep(&ctx->slice_q);
return 0;
}
static void prores_fdct(FDCTDSPContext *fdsp, const uint16_t *src,
ptrdiff_t linesize, int16_t *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;
}
fdsp->fdct(block);
}
static av_cold int encode_init(AVCodecContext *avctx)
{
ProresContext *ctx = avctx->priv_data;
int mps;
int i, j;
int min_quant, max_quant;
int interlaced = !!(avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT);
avctx->bits_per_raw_sample = 10;
#if FF_API_CODED_FRAME
FF_DISABLE_DEPRECATION_WARNINGS
avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
avctx->coded_frame->key_frame = 1;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
ctx->fdct = prores_fdct;
ctx->scantable = interlaced ? ff_prores_interlaced_scan
: ff_prores_progressive_scan;
ff_fdctdsp_init(&ctx->fdsp, avctx);
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);
}
if (ctx->profile == PRORES_PROFILE_AUTO) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
ctx->profile = (desc->flags & AV_PIX_FMT_FLAG_ALPHA ||
!(desc->log2_chroma_w + desc->log2_chroma_h))
? PRORES_PROFILE_4444 : PRORES_PROFILE_HQ;
av_log(avctx, AV_LOG_INFO, "Autoselected %s. It can be overridden "
"through -profile option.\n", ctx->profile == PRORES_PROFILE_4444
? "4:4:4:4 profile because of the used input colorspace"
: "HQ profile to keep best quality");
}
if (av_pix_fmt_desc_get(avctx->pix_fmt)->flags & AV_PIX_FMT_FLAG_ALPHA) {
if (ctx->profile != PRORES_PROFILE_4444 &&
ctx->profile != PRORES_PROFILE_4444XQ) {
av_log(avctx, AV_LOG_WARNING, "Profile selected will not "
"encode alpha. Override with -profile if needed.\n");
ctx->alpha_bits = 0;
}
if (ctx->alpha_bits & 7) {
av_log(avctx, AV_LOG_ERROR, "alpha bits should be 0, 8 or 16\n");
return AVERROR(EINVAL);
}
avctx->bits_per_coded_sample = 32;
} else {
ctx->alpha_bits = 0;
}
ctx->chroma_factor = avctx->pix_fmt == AV_PIX_FMT_YUV422P10
? CFACTOR_Y422
: CFACTOR_Y444;
ctx->profile_info = prores_profile_info + ctx->profile;
ctx->num_planes = 3 + !!ctx->alpha_bits;
ctx->mb_width = FFALIGN(avctx->width, 16) >> 4;
if (interlaced)
ctx->mb_height = FFALIGN(avctx->height, 32) >> 5;
else
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->slices_per_picture = ctx->mb_height * ctx->slices_width;
ctx->pictures_per_frame = 1 + interlaced;
if (ctx->quant_sel == -1) {
ctx->quant_mat = prores_quant_matrices[ctx->profile_info->quant];
ctx->quant_chroma_mat = prores_quant_matrices[ctx->profile_info->quant_chroma];
} else {
ctx->quant_mat = prores_quant_matrices[ctx->quant_sel];
ctx->quant_chroma_mat = prores_quant_matrices[ctx->quant_sel];
}
if (strlen(ctx->vendor) != 4) {
av_log(avctx, AV_LOG_ERROR, "vendor ID should be 4 bytes\n");
return AVERROR_INVALIDDATA;
}
ctx->force_quant = avctx->global_quality / FF_QP2LAMBDA;
if (!ctx->force_quant) {
if (!ctx->bits_per_mb) {
for (i = 0; i < NUM_MB_LIMITS - 1; i++)
if (prores_mb_limits[i] >= ctx->mb_width * ctx->mb_height *
ctx->pictures_per_frame)
break;
ctx->bits_per_mb = ctx->profile_info->br_tab[i];
if (ctx->alpha_bits)
ctx->bits_per_mb *= 20;
} else if (ctx->bits_per_mb < 128) {
av_log(avctx, AV_LOG_ERROR, "too few bits per MB, please set at least 128\n");
return AVERROR_INVALIDDATA;
}
min_quant = ctx->profile_info->min_quant;
max_quant = ctx->profile_info->max_quant;
for (i = min_quant; i < MAX_STORED_Q; i++) {
for (j = 0; j < 64; j++) {
ctx->quants[i][j] = ctx->quant_mat[j] * i;
ctx->quants_chroma[i][j] = ctx->quant_chroma_mat[j] * i;
}
}
ctx->slice_q = av_malloc(ctx->slices_per_picture * sizeof(*ctx->slice_q));
if (!ctx->slice_q) {
encode_close(avctx);
return AVERROR(ENOMEM);
}
ctx->tdata = av_mallocz(avctx->thread_count * sizeof(*ctx->tdata));
if (!ctx->tdata) {
encode_close(avctx);
return AVERROR(ENOMEM);
}
for (j = 0; j < avctx->thread_count; j++) {
ctx->tdata[j].nodes = av_malloc((ctx->slices_width + 1)
* TRELLIS_WIDTH
* sizeof(*ctx->tdata->nodes));
if (!ctx->tdata[j].nodes) {
encode_close(avctx);
return AVERROR(ENOMEM);
}
for (i = min_quant; i < max_quant + 2; i++) {
ctx->tdata[j].nodes[i].prev_node = -1;
ctx->tdata[j].nodes[i].bits = 0;
ctx->tdata[j].nodes[i].score = 0;
}
}
} else {
int ls = 0;
int ls_chroma = 0;
if (ctx->force_quant > 64) {
av_log(avctx, AV_LOG_ERROR, "too large quantiser, maximum is 64\n");
return AVERROR_INVALIDDATA;
}
for (j = 0; j < 64; j++) {
ctx->quants[0][j] = ctx->quant_mat[j] * ctx->force_quant;
ctx->quants_chroma[0][j] = ctx->quant_chroma_mat[j] * ctx->force_quant;
ls += av_log2((1 << 11) / ctx->quants[0][j]) * 2 + 1;
ls_chroma += av_log2((1 << 11) / ctx->quants_chroma[0][j]) * 2 + 1;
}
ctx->bits_per_mb = ls * 4 + ls_chroma * 4;
if (ctx->chroma_factor == CFACTOR_Y444)
ctx->bits_per_mb += ls_chroma * 4;
}
ctx->frame_size_upper_bound = (ctx->pictures_per_frame *
ctx->slices_per_picture + 1) *
(2 + 2 * ctx->num_planes +
(mps * ctx->bits_per_mb) / 8)
+ 200;
if (ctx->alpha_bits) {
ctx->frame_size_upper_bound += (ctx->pictures_per_frame *
ctx->slices_per_picture + 1) *
(ctx->mbs_per_slice * 256 *
(1 + ctx->alpha_bits + 1) + 7 >> 3);
}
avctx->codec_tag = ctx->profile_info->tag;
av_log(avctx, AV_LOG_DEBUG,
"profile %d, %d slices, interlacing: %s, %d bits per MB\n",
ctx->profile, ctx->slices_per_picture * ctx->pictures_per_frame,
interlaced ? "yes" : "no", ctx->bits_per_mb);
av_log(avctx, AV_LOG_DEBUG, "frame size upper bound: %d\n",
ctx->frame_size_upper_bound);
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, { .i64 = 8 }, 1, MAX_MBS_PER_SLICE, VE },
{ "profile", NULL, OFFSET(profile), AV_OPT_TYPE_INT,
{ .i64 = PRORES_PROFILE_AUTO },
PRORES_PROFILE_AUTO, PRORES_PROFILE_4444XQ, VE, "profile" },
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_AUTO },
0, 0, VE, "profile" },
{ "proxy", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_PROXY },
0, 0, VE, "profile" },
{ "lt", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_LT },
0, 0, VE, "profile" },
{ "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_STANDARD },
0, 0, VE, "profile" },
{ "hq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_HQ },
0, 0, VE, "profile" },
{ "4444", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_4444 },
0, 0, VE, "profile" },
{ "4444xq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_4444XQ },
0, 0, VE, "profile" },
{ "vendor", "vendor ID", OFFSET(vendor),
AV_OPT_TYPE_STRING, { .str = "Lavc" }, 0, 0, VE },
{ "bits_per_mb", "desired bits per macroblock", OFFSET(bits_per_mb),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8192, VE },
{ "quant_mat", "quantiser matrix", OFFSET(quant_sel), AV_OPT_TYPE_INT,
{ .i64 = -1 }, -1, QUANT_MAT_DEFAULT, VE, "quant_mat" },
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 },
0, 0, VE, "quant_mat" },
{ "proxy", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_PROXY },
0, 0, VE, "quant_mat" },
{ "lt", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_LT },
0, 0, VE, "quant_mat" },
{ "standard", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_STANDARD },
0, 0, VE, "quant_mat" },
{ "hq", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_HQ },
0, 0, VE, "quant_mat" },
{ "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = QUANT_MAT_DEFAULT },
0, 0, VE, "quant_mat" },
{ "alpha_bits", "bits for alpha plane", OFFSET(alpha_bits), AV_OPT_TYPE_INT,
{ .i64 = 16 }, 0, 16, VE },
{ 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_ks_encoder = {
.name = "prores_ks",
.long_name = NULL_IF_CONFIG_SMALL("Apple ProRes (iCodec Pro)"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_PRORES,
.priv_data_size = sizeof(ProresContext),
.init = encode_init,
.close = encode_close,
.encode2 = encode_frame,
.capabilities = AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS,
.pix_fmts = (const enum AVPixelFormat[]) {
AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_NONE
},
.priv_class = &proresenc_class,
.profiles = NULL_IF_CONFIG_SMALL(ff_prores_profiles),
};