mirror of
https://github.com/pineappleEA/pineapple-src.git
synced 2024-12-05 08:08:27 -05:00
203 lines
6.9 KiB
C
Executable File
203 lines
6.9 KiB
C
Executable File
/*
|
|
* FFV1 encoder template
|
|
*
|
|
* Copyright (c) 2003-2016 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
static av_always_inline int RENAME(encode_line)(FFV1Context *s, int w,
|
|
TYPE *sample[3],
|
|
int plane_index, int bits)
|
|
{
|
|
PlaneContext *const p = &s->plane[plane_index];
|
|
RangeCoder *const c = &s->c;
|
|
int x;
|
|
int run_index = s->run_index;
|
|
int run_count = 0;
|
|
int run_mode = 0;
|
|
|
|
if (s->ac != AC_GOLOMB_RICE) {
|
|
if (c->bytestream_end - c->bytestream < w * 35) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
} else {
|
|
if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < w * 4) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
|
|
if (s->slice_coding_mode == 1) {
|
|
for (x = 0; x < w; x++) {
|
|
int i;
|
|
int v = sample[0][x];
|
|
for (i = bits-1; i>=0; i--) {
|
|
uint8_t state = 128;
|
|
put_rac(c, &state, (v>>i) & 1);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
for (x = 0; x < w; x++) {
|
|
int diff, context;
|
|
|
|
context = RENAME(get_context)(p, sample[0] + x, sample[1] + x, sample[2] + x);
|
|
diff = sample[0][x] - RENAME(predict)(sample[0] + x, sample[1] + x);
|
|
|
|
if (context < 0) {
|
|
context = -context;
|
|
diff = -diff;
|
|
}
|
|
|
|
diff = fold(diff, bits);
|
|
|
|
if (s->ac != AC_GOLOMB_RICE) {
|
|
if (s->flags & AV_CODEC_FLAG_PASS1) {
|
|
put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat,
|
|
s->rc_stat2[p->quant_table_index][context]);
|
|
} else {
|
|
put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL);
|
|
}
|
|
} else {
|
|
if (context == 0)
|
|
run_mode = 1;
|
|
|
|
if (run_mode) {
|
|
if (diff) {
|
|
while (run_count >= 1 << ff_log2_run[run_index]) {
|
|
run_count -= 1 << ff_log2_run[run_index];
|
|
run_index++;
|
|
put_bits(&s->pb, 1, 1);
|
|
}
|
|
|
|
put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count);
|
|
if (run_index)
|
|
run_index--;
|
|
run_count = 0;
|
|
run_mode = 0;
|
|
if (diff > 0)
|
|
diff--;
|
|
} else {
|
|
run_count++;
|
|
}
|
|
}
|
|
|
|
ff_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
|
|
run_count, run_index, run_mode, x,
|
|
(int)put_bits_count(&s->pb));
|
|
|
|
if (run_mode == 0)
|
|
put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits);
|
|
}
|
|
}
|
|
if (run_mode) {
|
|
while (run_count >= 1 << ff_log2_run[run_index]) {
|
|
run_count -= 1 << ff_log2_run[run_index];
|
|
run_index++;
|
|
put_bits(&s->pb, 1, 1);
|
|
}
|
|
|
|
if (run_count)
|
|
put_bits(&s->pb, 1, 1);
|
|
}
|
|
s->run_index = run_index;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int RENAME(encode_rgb_frame)(FFV1Context *s, const uint8_t *src[4],
|
|
int w, int h, const int stride[4])
|
|
{
|
|
int x, y, p, i;
|
|
const int ring_size = s->context_model ? 3 : 2;
|
|
TYPE *sample[4][3];
|
|
int lbd = s->bits_per_raw_sample <= 8;
|
|
int packed = !src[1];
|
|
int bits = s->bits_per_raw_sample > 0 ? s->bits_per_raw_sample : 8;
|
|
int offset = 1 << bits;
|
|
int transparency = s->transparency;
|
|
int packed_size = (3 + transparency)*2;
|
|
|
|
s->run_index = 0;
|
|
|
|
memset(RENAME(s->sample_buffer), 0, ring_size * MAX_PLANES *
|
|
(w + 6) * sizeof(*RENAME(s->sample_buffer)));
|
|
|
|
for (y = 0; y < h; y++) {
|
|
for (i = 0; i < ring_size; i++)
|
|
for (p = 0; p < MAX_PLANES; p++)
|
|
sample[p][i]= RENAME(s->sample_buffer) + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3;
|
|
|
|
for (x = 0; x < w; x++) {
|
|
int b, g, r, av_uninit(a);
|
|
if (lbd) {
|
|
unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
|
|
b = v & 0xFF;
|
|
g = (v >> 8) & 0xFF;
|
|
r = (v >> 16) & 0xFF;
|
|
a = v >> 24;
|
|
} else if (packed) {
|
|
const uint16_t *p = ((const uint16_t*)(src[0] + x*packed_size + stride[0]*y));
|
|
r = p[0];
|
|
g = p[1];
|
|
b = p[2];
|
|
if (transparency)
|
|
a = p[3];
|
|
} else if (sizeof(TYPE) == 4 || transparency) {
|
|
g = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
|
|
b = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
|
|
r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
|
|
if (transparency)
|
|
a = *((const uint16_t *)(src[3] + x*2 + stride[3]*y));
|
|
} else {
|
|
b = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
|
|
g = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
|
|
r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
|
|
}
|
|
|
|
if (s->slice_coding_mode != 1) {
|
|
b -= g;
|
|
r -= g;
|
|
g += (b * s->slice_rct_by_coef + r * s->slice_rct_ry_coef) >> 2;
|
|
b += offset;
|
|
r += offset;
|
|
}
|
|
|
|
sample[0][0][x] = g;
|
|
sample[1][0][x] = b;
|
|
sample[2][0][x] = r;
|
|
sample[3][0][x] = a;
|
|
}
|
|
for (p = 0; p < 3 + transparency; p++) {
|
|
int ret;
|
|
sample[p][0][-1] = sample[p][1][0 ];
|
|
sample[p][1][ w] = sample[p][1][w-1];
|
|
if (lbd && s->slice_coding_mode == 0)
|
|
ret = RENAME(encode_line)(s, w, sample[p], (p + 1) / 2, 9);
|
|
else
|
|
ret = RENAME(encode_line)(s, w, sample[p], (p + 1) / 2, bits + (s->slice_coding_mode != 1));
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|