mirror of https://github.com/FFmpeg/FFmpeg.git
Signed-off-by: Anatoliy Wasserman <anatoliy.wasserman@yandex.ru> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>pull/2/head
Anatoliy Wasserman
13 years ago
committed by
Michael Niedermayer
parent
6faf0a21e1
commit
70bab5847e
5 changed files with 614 additions and 2 deletions
@ -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 |
||||
}; |
||||
Loading…
Reference in new issue