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Diffstat (limited to 'ffmpeg/libavcodec/ffv1enc.c')
-rw-r--r--ffmpeg/libavcodec/ffv1enc.c1358
1 files changed, 0 insertions, 1358 deletions
diff --git a/ffmpeg/libavcodec/ffv1enc.c b/ffmpeg/libavcodec/ffv1enc.c
deleted file mode 100644
index 7f9f203..0000000
--- a/ffmpeg/libavcodec/ffv1enc.c
+++ /dev/null
@@ -1,1358 +0,0 @@
-/*
- * FFV1 encoder
- *
- * Copyright (c) 2003-2013 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
- */
-
-/**
- * @file
- * FF Video Codec 1 (a lossless codec) encoder
- */
-
-#include "libavutil/attributes.h"
-#include "libavutil/avassert.h"
-#include "libavutil/crc.h"
-#include "libavutil/opt.h"
-#include "libavutil/imgutils.h"
-#include "libavutil/pixdesc.h"
-#include "libavutil/timer.h"
-#include "avcodec.h"
-#include "internal.h"
-#include "put_bits.h"
-#include "rangecoder.h"
-#include "golomb.h"
-#include "mathops.h"
-#include "ffv1.h"
-
-static const int8_t quant5_10bit[256] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 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, 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,
- 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, -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, -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, -2, -2, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -0, -0, -0, -0, -0, -0, -0, -0, -0, -0,
-};
-
-static const int8_t quant5[256] = {
- 0, 1, 1, 1, 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, 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, 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, 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,
- -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, -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, -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, -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, -2, -1, -1, -1,
-};
-
-static const int8_t quant9_10bit[256] = {
- 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 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, 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, -4, -4, -4, -4,
- -4, -4, -4, -4, -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3,
- -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3,
- -3, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
- -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, -1, -1, -0, -0, -0, -0,
-};
-
-static const int8_t quant11[256] = {
- 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
- -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
- -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
- -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
- -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
- -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -4, -4,
- -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
- -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, -2, -2, -2, -1,
-};
-
-static const uint8_t ver2_state[256] = {
- 0, 10, 10, 10, 10, 16, 16, 16, 28, 16, 16, 29, 42, 49, 20, 49,
- 59, 25, 26, 26, 27, 31, 33, 33, 33, 34, 34, 37, 67, 38, 39, 39,
- 40, 40, 41, 79, 43, 44, 45, 45, 48, 48, 64, 50, 51, 52, 88, 52,
- 53, 74, 55, 57, 58, 58, 74, 60, 101, 61, 62, 84, 66, 66, 68, 69,
- 87, 82, 71, 97, 73, 73, 82, 75, 111, 77, 94, 78, 87, 81, 83, 97,
- 85, 83, 94, 86, 99, 89, 90, 99, 111, 92, 93, 134, 95, 98, 105, 98,
- 105, 110, 102, 108, 102, 118, 103, 106, 106, 113, 109, 112, 114, 112, 116, 125,
- 115, 116, 117, 117, 126, 119, 125, 121, 121, 123, 145, 124, 126, 131, 127, 129,
- 165, 130, 132, 138, 133, 135, 145, 136, 137, 139, 146, 141, 143, 142, 144, 148,
- 147, 155, 151, 149, 151, 150, 152, 157, 153, 154, 156, 168, 158, 162, 161, 160,
- 172, 163, 169, 164, 166, 184, 167, 170, 177, 174, 171, 173, 182, 176, 180, 178,
- 175, 189, 179, 181, 186, 183, 192, 185, 200, 187, 191, 188, 190, 197, 193, 196,
- 197, 194, 195, 196, 198, 202, 199, 201, 210, 203, 207, 204, 205, 206, 208, 214,
- 209, 211, 221, 212, 213, 215, 224, 216, 217, 218, 219, 220, 222, 228, 223, 225,
- 226, 224, 227, 229, 240, 230, 231, 232, 233, 234, 235, 236, 238, 239, 237, 242,
- 241, 243, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 255,
-};
-
-static void find_best_state(uint8_t best_state[256][256],
- const uint8_t one_state[256])
-{
- int i, j, k, m;
- double l2tab[256];
-
- for (i = 1; i < 256; i++)
- l2tab[i] = log2(i / 256.0);
-
- for (i = 0; i < 256; i++) {
- double best_len[256];
- double p = i / 256.0;
-
- for (j = 0; j < 256; j++)
- best_len[j] = 1 << 30;
-
- for (j = FFMAX(i - 10, 1); j < FFMIN(i + 11, 256); j++) {
- double occ[256] = { 0 };
- double len = 0;
- occ[j] = 1.0;
- for (k = 0; k < 256; k++) {
- double newocc[256] = { 0 };
- for (m = 1; m < 256; m++)
- if (occ[m]) {
- len -=occ[m]*( p *l2tab[ m]
- + (1-p)*l2tab[256-m]);
- }
- if (len < best_len[k]) {
- best_len[k] = len;
- best_state[i][k] = j;
- }
- for (m = 0; m < 256; m++)
- if (occ[m]) {
- newocc[ one_state[ m]] += occ[m] * p;
- newocc[256 - one_state[256 - m]] += occ[m] * (1 - p);
- }
- memcpy(occ, newocc, sizeof(occ));
- }
- }
- }
-}
-
-static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c,
- uint8_t *state, int v,
- int is_signed,
- uint64_t rc_stat[256][2],
- uint64_t rc_stat2[32][2])
-{
- int i;
-
-#define put_rac(C, S, B) \
- do { \
- if (rc_stat) { \
- rc_stat[*(S)][B]++; \
- rc_stat2[(S) - state][B]++; \
- } \
- put_rac(C, S, B); \
- } while (0)
-
- if (v) {
- const int a = FFABS(v);
- const int e = av_log2(a);
- put_rac(c, state + 0, 0);
- if (e <= 9) {
- for (i = 0; i < e; i++)
- put_rac(c, state + 1 + i, 1); // 1..10
- put_rac(c, state + 1 + i, 0);
-
- for (i = e - 1; i >= 0; i--)
- put_rac(c, state + 22 + i, (a >> i) & 1); // 22..31
-
- if (is_signed)
- put_rac(c, state + 11 + e, v < 0); // 11..21
- } else {
- for (i = 0; i < e; i++)
- put_rac(c, state + 1 + FFMIN(i, 9), 1); // 1..10
- put_rac(c, state + 1 + 9, 0);
-
- for (i = e - 1; i >= 0; i--)
- put_rac(c, state + 22 + FFMIN(i, 9), (a >> i) & 1); // 22..31
-
- if (is_signed)
- put_rac(c, state + 11 + 10, v < 0); // 11..21
- }
- } else {
- put_rac(c, state + 0, 1);
- }
-#undef put_rac
-}
-
-static av_noinline void put_symbol(RangeCoder *c, uint8_t *state,
- int v, int is_signed)
-{
- put_symbol_inline(c, state, v, is_signed, NULL, NULL);
-}
-
-
-static inline void put_vlc_symbol(PutBitContext *pb, VlcState *const state,
- int v, int bits)
-{
- int i, k, code;
- v = fold(v - state->bias, bits);
-
- i = state->count;
- k = 0;
- while (i < state->error_sum) { // FIXME: optimize
- k++;
- i += i;
- }
-
- av_assert2(k <= 13);
-
-#if 0 // JPEG LS
- if (k == 0 && 2 * state->drift <= -state->count)
- code = v ^ (-1);
- else
- code = v;
-#else
- code = v ^ ((2 * state->drift + state->count) >> 31);
-#endif
-
- av_dlog(NULL, "v:%d/%d bias:%d error:%d drift:%d count:%d k:%d\n", v, code,
- state->bias, state->error_sum, state->drift, state->count, k);
- set_sr_golomb(pb, code, k, 12, bits);
-
- update_vlc_state(state, v);
-}
-
-static av_always_inline int encode_line(FFV1Context *s, int w,
- int16_t *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) {
- 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 = get_context(p, sample[0] + x, sample[1] + x, sample[2] + x);
- diff = sample[0][x] - predict(sample[0] + x, sample[1] + x);
-
- if (context < 0) {
- context = -context;
- diff = -diff;
- }
-
- diff = fold(diff, bits);
-
- if (s->ac) {
- if (s->flags & 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++;
- }
- }
-
- av_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 encode_plane(FFV1Context *s, uint8_t *src, int w, int h,
- int stride, int plane_index)
-{
- int x, y, i, ret;
- const int ring_size = s->avctx->context_model ? 3 : 2;
- int16_t *sample[3];
- s->run_index = 0;
-
- memset(s->sample_buffer, 0, ring_size * (w + 6) * sizeof(*s->sample_buffer));
-
- for (y = 0; y < h; y++) {
- for (i = 0; i < ring_size; i++)
- sample[i] = s->sample_buffer + (w + 6) * ((h + i - y) % ring_size) + 3;
-
- sample[0][-1]= sample[1][0 ];
- sample[1][ w]= sample[1][w-1];
-// { START_TIMER
- if (s->bits_per_raw_sample <= 8) {
- for (x = 0; x < w; x++)
- sample[0][x] = src[x + stride * y];
- if((ret = encode_line(s, w, sample, plane_index, 8)) < 0)
- return ret;
- } else {
- if (s->packed_at_lsb) {
- for (x = 0; x < w; x++) {
- sample[0][x] = ((uint16_t*)(src + stride*y))[x];
- }
- } else {
- for (x = 0; x < w; x++) {
- sample[0][x] = ((uint16_t*)(src + stride*y))[x] >> (16 - s->bits_per_raw_sample);
- }
- }
- if((ret = encode_line(s, w, sample, plane_index, s->bits_per_raw_sample)) < 0)
- return ret;
- }
-// STOP_TIMER("encode line") }
- }
- return 0;
-}
-
-static int encode_rgb_frame(FFV1Context *s, uint8_t *src[3], int w, int h, int stride[3])
-{
- int x, y, p, i;
- const int ring_size = s->avctx->context_model ? 3 : 2;
- int16_t *sample[4][3];
- int lbd = s->bits_per_raw_sample <= 8;
- int bits = s->bits_per_raw_sample > 0 ? s->bits_per_raw_sample : 8;
- int offset = 1 << bits;
-
- s->run_index = 0;
-
- memset(s->sample_buffer, 0, ring_size * MAX_PLANES *
- (w + 6) * sizeof(*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]= 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 = *((uint32_t*)(src[0] + x*4 + stride[0]*y));
- b = v & 0xFF;
- g = (v >> 8) & 0xFF;
- r = (v >> 16) & 0xFF;
- a = v >> 24;
- } else {
- b = *((uint16_t*)(src[0] + x*2 + stride[0]*y));
- g = *((uint16_t*)(src[1] + x*2 + stride[1]*y));
- r = *((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 + s->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 = encode_line(s, w, sample[p], (p + 1) / 2, 9);
- else
- ret = encode_line(s, w, sample[p], (p + 1) / 2, bits + (s->slice_coding_mode != 1));
- if (ret < 0)
- return ret;
- }
- }
- return 0;
-}
-
-static void write_quant_table(RangeCoder *c, int16_t *quant_table)
-{
- int last = 0;
- int i;
- uint8_t state[CONTEXT_SIZE];
- memset(state, 128, sizeof(state));
-
- for (i = 1; i < 128; i++)
- if (quant_table[i] != quant_table[i - 1]) {
- put_symbol(c, state, i - last - 1, 0);
- last = i;
- }
- put_symbol(c, state, i - last - 1, 0);
-}
-
-static void write_quant_tables(RangeCoder *c,
- int16_t quant_table[MAX_CONTEXT_INPUTS][256])
-{
- int i;
- for (i = 0; i < 5; i++)
- write_quant_table(c, quant_table[i]);
-}
-
-static void write_header(FFV1Context *f)
-{
- uint8_t state[CONTEXT_SIZE];
- int i, j;
- RangeCoder *const c = &f->slice_context[0]->c;
-
- memset(state, 128, sizeof(state));
-
- if (f->version < 2) {
- put_symbol(c, state, f->version, 0);
- put_symbol(c, state, f->ac, 0);
- if (f->ac > 1) {
- for (i = 1; i < 256; i++)
- put_symbol(c, state,
- f->state_transition[i] - c->one_state[i], 1);
- }
- put_symbol(c, state, f->colorspace, 0); //YUV cs type
- if (f->version > 0)
- put_symbol(c, state, f->bits_per_raw_sample, 0);
- put_rac(c, state, f->chroma_planes);
- put_symbol(c, state, f->chroma_h_shift, 0);
- put_symbol(c, state, f->chroma_v_shift, 0);
- put_rac(c, state, f->transparency);
-
- write_quant_tables(c, f->quant_table);
- } else if (f->version < 3) {
- put_symbol(c, state, f->slice_count, 0);
- for (i = 0; i < f->slice_count; i++) {
- FFV1Context *fs = f->slice_context[i];
- put_symbol(c, state,
- (fs->slice_x + 1) * f->num_h_slices / f->width, 0);
- put_symbol(c, state,
- (fs->slice_y + 1) * f->num_v_slices / f->height, 0);
- put_symbol(c, state,
- (fs->slice_width + 1) * f->num_h_slices / f->width - 1,
- 0);
- put_symbol(c, state,
- (fs->slice_height + 1) * f->num_v_slices / f->height - 1,
- 0);
- for (j = 0; j < f->plane_count; j++) {
- put_symbol(c, state, f->plane[j].quant_table_index, 0);
- av_assert0(f->plane[j].quant_table_index == f->avctx->context_model);
- }
- }
- }
-}
-
-static int write_extradata(FFV1Context *f)
-{
- RangeCoder *const c = &f->c;
- uint8_t state[CONTEXT_SIZE];
- int i, j, k;
- uint8_t state2[32][CONTEXT_SIZE];
- unsigned v;
-
- memset(state2, 128, sizeof(state2));
- memset(state, 128, sizeof(state));
-
- f->avctx->extradata_size = 10000 + 4 +
- (11 * 11 * 5 * 5 * 5 + 11 * 11 * 11) * 32;
- f->avctx->extradata = av_malloc(f->avctx->extradata_size);
- if (!f->avctx->extradata)
- return AVERROR(ENOMEM);
- ff_init_range_encoder(c, f->avctx->extradata, f->avctx->extradata_size);
- ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);
-
- put_symbol(c, state, f->version, 0);
- if (f->version > 2) {
- if (f->version == 3) {
- f->micro_version = 4;
- } else if (f->version == 4)
- f->micro_version = 2;
- put_symbol(c, state, f->micro_version, 0);
- }
-
- put_symbol(c, state, f->ac, 0);
- if (f->ac > 1)
- for (i = 1; i < 256; i++)
- put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1);
-
- put_symbol(c, state, f->colorspace, 0); // YUV cs type
- put_symbol(c, state, f->bits_per_raw_sample, 0);
- put_rac(c, state, f->chroma_planes);
- put_symbol(c, state, f->chroma_h_shift, 0);
- put_symbol(c, state, f->chroma_v_shift, 0);
- put_rac(c, state, f->transparency);
- put_symbol(c, state, f->num_h_slices - 1, 0);
- put_symbol(c, state, f->num_v_slices - 1, 0);
-
- put_symbol(c, state, f->quant_table_count, 0);
- for (i = 0; i < f->quant_table_count; i++)
- write_quant_tables(c, f->quant_tables[i]);
-
- for (i = 0; i < f->quant_table_count; i++) {
- for (j = 0; j < f->context_count[i] * CONTEXT_SIZE; j++)
- if (f->initial_states[i] && f->initial_states[i][0][j] != 128)
- break;
- if (j < f->context_count[i] * CONTEXT_SIZE) {
- put_rac(c, state, 1);
- for (j = 0; j < f->context_count[i]; j++)
- for (k = 0; k < CONTEXT_SIZE; k++) {
- int pred = j ? f->initial_states[i][j - 1][k] : 128;
- put_symbol(c, state2[k],
- (int8_t)(f->initial_states[i][j][k] - pred), 1);
- }
- } else {
- put_rac(c, state, 0);
- }
- }
-
- if (f->version > 2) {
- put_symbol(c, state, f->ec, 0);
- put_symbol(c, state, f->intra = (f->avctx->gop_size < 2), 0);
- }
-
- f->avctx->extradata_size = ff_rac_terminate(c);
- v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, f->avctx->extradata, f->avctx->extradata_size);
- AV_WL32(f->avctx->extradata + f->avctx->extradata_size, v);
- f->avctx->extradata_size += 4;
-
- return 0;
-}
-
-static int sort_stt(FFV1Context *s, uint8_t stt[256])
-{
- int i, i2, changed, print = 0;
-
- do {
- changed = 0;
- for (i = 12; i < 244; i++) {
- for (i2 = i + 1; i2 < 245 && i2 < i + 4; i2++) {
-
-#define COST(old, new) \
- s->rc_stat[old][0] * -log2((256 - (new)) / 256.0) + \
- s->rc_stat[old][1] * -log2((new) / 256.0)
-
-#define COST2(old, new) \
- COST(old, new) + COST(256 - (old), 256 - (new))
-
- double size0 = COST2(i, i) + COST2(i2, i2);
- double sizeX = COST2(i, i2) + COST2(i2, i);
- if (size0 - sizeX > size0*(1e-14) && i != 128 && i2 != 128) {
- int j;
- FFSWAP(int, stt[i], stt[i2]);
- FFSWAP(int, s->rc_stat[i][0], s->rc_stat[i2][0]);
- FFSWAP(int, s->rc_stat[i][1], s->rc_stat[i2][1]);
- if (i != 256 - i2) {
- FFSWAP(int, stt[256 - i], stt[256 - i2]);
- FFSWAP(int, s->rc_stat[256 - i][0], s->rc_stat[256 - i2][0]);
- FFSWAP(int, s->rc_stat[256 - i][1], s->rc_stat[256 - i2][1]);
- }
- for (j = 1; j < 256; j++) {
- if (stt[j] == i)
- stt[j] = i2;
- else if (stt[j] == i2)
- stt[j] = i;
- if (i != 256 - i2) {
- if (stt[256 - j] == 256 - i)
- stt[256 - j] = 256 - i2;
- else if (stt[256 - j] == 256 - i2)
- stt[256 - j] = 256 - i;
- }
- }
- print = changed = 1;
- }
- }
- }
- } while (changed);
- return print;
-}
-
-static av_cold int encode_init(AVCodecContext *avctx)
-{
- FFV1Context *s = avctx->priv_data;
- const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
- int i, j, k, m, ret;
-
- if ((ret = ffv1_common_init(avctx)) < 0)
- return ret;
-
- s->version = 0;
-
- if ((avctx->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) || avctx->slices>1)
- s->version = FFMAX(s->version, 2);
-
- if (avctx->level <= 0 && s->version == 2) {
- s->version = 3;
- }
- if (avctx->level >= 0 && avctx->level <= 4)
- s->version = FFMAX(s->version, avctx->level);
-
- if (s->ec < 0) {
- s->ec = (s->version >= 3);
- }
-
- if ((s->version == 2 || s->version>3) && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
- av_log(avctx, AV_LOG_ERROR, "Version 2 needed for requested features but version 2 is experimental and not enabled\n");
- return AVERROR_INVALIDDATA;
- }
-
- s->ac = avctx->coder_type > 0 ? 2 : 0;
-
- s->plane_count = 3;
- switch(avctx->pix_fmt) {
- case AV_PIX_FMT_YUV444P9:
- case AV_PIX_FMT_YUV422P9:
- case AV_PIX_FMT_YUV420P9:
- case AV_PIX_FMT_YUVA444P9:
- case AV_PIX_FMT_YUVA422P9:
- case AV_PIX_FMT_YUVA420P9:
- if (!avctx->bits_per_raw_sample)
- s->bits_per_raw_sample = 9;
- case AV_PIX_FMT_YUV444P10:
- case AV_PIX_FMT_YUV420P10:
- case AV_PIX_FMT_YUV422P10:
- case AV_PIX_FMT_YUVA444P10:
- case AV_PIX_FMT_YUVA422P10:
- case AV_PIX_FMT_YUVA420P10:
- s->packed_at_lsb = 1;
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
- s->bits_per_raw_sample = 10;
- case AV_PIX_FMT_GRAY16:
- case AV_PIX_FMT_YUV444P16:
- case AV_PIX_FMT_YUV422P16:
- case AV_PIX_FMT_YUV420P16:
- case AV_PIX_FMT_YUVA444P16:
- case AV_PIX_FMT_YUVA422P16:
- case AV_PIX_FMT_YUVA420P16:
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) {
- s->bits_per_raw_sample = 16;
- } else if (!s->bits_per_raw_sample) {
- s->bits_per_raw_sample = avctx->bits_per_raw_sample;
- }
- if (s->bits_per_raw_sample <= 8) {
- av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample invalid\n");
- return AVERROR_INVALIDDATA;
- }
- if (!s->ac && avctx->coder_type == -1) {
- av_log(avctx, AV_LOG_INFO, "bits_per_raw_sample > 8, forcing coder 1\n");
- s->ac = 2;
- }
- if (!s->ac) {
- av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n");
- return AVERROR(ENOSYS);
- }
- s->version = FFMAX(s->version, 1);
- case AV_PIX_FMT_GRAY8:
- case AV_PIX_FMT_YUV444P:
- case AV_PIX_FMT_YUV440P:
- case AV_PIX_FMT_YUV422P:
- case AV_PIX_FMT_YUV420P:
- case AV_PIX_FMT_YUV411P:
- case AV_PIX_FMT_YUV410P:
- case AV_PIX_FMT_YUVA444P:
- case AV_PIX_FMT_YUVA422P:
- case AV_PIX_FMT_YUVA420P:
- s->chroma_planes = desc->nb_components < 3 ? 0 : 1;
- s->colorspace = 0;
- s->transparency = desc->nb_components == 4;
- break;
- case AV_PIX_FMT_RGB32:
- s->colorspace = 1;
- s->transparency = 1;
- s->chroma_planes = 1;
- break;
- case AV_PIX_FMT_0RGB32:
- s->colorspace = 1;
- s->chroma_planes = 1;
- break;
- case AV_PIX_FMT_GBRP9:
- if (!avctx->bits_per_raw_sample)
- s->bits_per_raw_sample = 9;
- case AV_PIX_FMT_GBRP10:
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
- s->bits_per_raw_sample = 10;
- case AV_PIX_FMT_GBRP12:
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
- s->bits_per_raw_sample = 12;
- case AV_PIX_FMT_GBRP14:
- if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
- s->bits_per_raw_sample = 14;
- else if (!s->bits_per_raw_sample)
- s->bits_per_raw_sample = avctx->bits_per_raw_sample;
- s->colorspace = 1;
- s->chroma_planes = 1;
- s->version = FFMAX(s->version, 1);
- if (!s->ac) {
- av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n");
- return AVERROR(ENOSYS);
- }
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "format not supported\n");
- return AVERROR(ENOSYS);
- }
- if (s->transparency) {
- av_log(avctx, AV_LOG_WARNING, "Storing alpha plane, this will require a recent FFV1 decoder to playback!\n");
- }
- if (avctx->context_model > 1U) {
- av_log(avctx, AV_LOG_ERROR, "Invalid context model %d, valid values are 0 and 1\n", avctx->context_model);
- return AVERROR(EINVAL);
- }
-
- if (s->ac > 1)
- for (i = 1; i < 256; i++)
- s->state_transition[i] = ver2_state[i];
-
- for (i = 0; i < 256; i++) {
- s->quant_table_count = 2;
- if (s->bits_per_raw_sample <= 8) {
- s->quant_tables[0][0][i]= quant11[i];
- s->quant_tables[0][1][i]= 11*quant11[i];
- s->quant_tables[0][2][i]= 11*11*quant11[i];
- s->quant_tables[1][0][i]= quant11[i];
- s->quant_tables[1][1][i]= 11*quant11[i];
- s->quant_tables[1][2][i]= 11*11*quant5 [i];
- s->quant_tables[1][3][i]= 5*11*11*quant5 [i];
- s->quant_tables[1][4][i]= 5*5*11*11*quant5 [i];
- } else {
- s->quant_tables[0][0][i]= quant9_10bit[i];
- s->quant_tables[0][1][i]= 11*quant9_10bit[i];
- s->quant_tables[0][2][i]= 11*11*quant9_10bit[i];
- s->quant_tables[1][0][i]= quant9_10bit[i];
- s->quant_tables[1][1][i]= 11*quant9_10bit[i];
- s->quant_tables[1][2][i]= 11*11*quant5_10bit[i];
- s->quant_tables[1][3][i]= 5*11*11*quant5_10bit[i];
- s->quant_tables[1][4][i]= 5*5*11*11*quant5_10bit[i];
- }
- }
- s->context_count[0] = (11 * 11 * 11 + 1) / 2;
- s->context_count[1] = (11 * 11 * 5 * 5 * 5 + 1) / 2;
- memcpy(s->quant_table, s->quant_tables[avctx->context_model],
- sizeof(s->quant_table));
-
- for (i = 0; i < s->plane_count; i++) {
- PlaneContext *const p = &s->plane[i];
-
- memcpy(p->quant_table, s->quant_table, sizeof(p->quant_table));
- p->quant_table_index = avctx->context_model;
- p->context_count = s->context_count[p->quant_table_index];
- }
-
- if ((ret = ffv1_allocate_initial_states(s)) < 0)
- return ret;
-
- avctx->coded_frame = av_frame_alloc();
- if (!avctx->coded_frame)
- return AVERROR(ENOMEM);
-
- avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
-
- if (!s->transparency)
- s->plane_count = 2;
- if (!s->chroma_planes && s->version > 3)
- s->plane_count--;
-
- avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
- s->picture_number = 0;
-
- if (avctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
- for (i = 0; i < s->quant_table_count; i++) {
- s->rc_stat2[i] = av_mallocz(s->context_count[i] *
- sizeof(*s->rc_stat2[i]));
- if (!s->rc_stat2[i])
- return AVERROR(ENOMEM);
- }
- }
- if (avctx->stats_in) {
- char *p = avctx->stats_in;
- uint8_t best_state[256][256];
- int gob_count = 0;
- char *next;
-
- av_assert0(s->version >= 2);
-
- for (;;) {
- for (j = 0; j < 256; j++)
- for (i = 0; i < 2; i++) {
- s->rc_stat[j][i] = strtol(p, &next, 0);
- if (next == p) {
- av_log(avctx, AV_LOG_ERROR,
- "2Pass file invalid at %d %d [%s]\n", j, i, p);
- return AVERROR_INVALIDDATA;
- }
- p = next;
- }
- for (i = 0; i < s->quant_table_count; i++)
- for (j = 0; j < s->context_count[i]; j++) {
- for (k = 0; k < 32; k++)
- for (m = 0; m < 2; m++) {
- s->rc_stat2[i][j][k][m] = strtol(p, &next, 0);
- if (next == p) {
- av_log(avctx, AV_LOG_ERROR,
- "2Pass file invalid at %d %d %d %d [%s]\n",
- i, j, k, m, p);
- return AVERROR_INVALIDDATA;
- }
- p = next;
- }
- }
- gob_count = strtol(p, &next, 0);
- if (next == p || gob_count <= 0) {
- av_log(avctx, AV_LOG_ERROR, "2Pass file invalid\n");
- return AVERROR_INVALIDDATA;
- }
- p = next;
- while (*p == '\n' || *p == ' ')
- p++;
- if (p[0] == 0)
- break;
- }
- sort_stt(s, s->state_transition);
-
- find_best_state(best_state, s->state_transition);
-
- for (i = 0; i < s->quant_table_count; i++) {
- for (k = 0; k < 32; k++) {
- double a=0, b=0;
- int jp = 0;
- for (j = 0; j < s->context_count[i]; j++) {
- double p = 128;
- if (s->rc_stat2[i][j][k][0] + s->rc_stat2[i][j][k][1] > 200 && j || a+b > 200) {
- if (a+b)
- p = 256.0 * b / (a + b);
- s->initial_states[i][jp][k] =
- best_state[av_clip(round(p), 1, 255)][av_clip((a + b) / gob_count, 0, 255)];
- for(jp++; jp<j; jp++)
- s->initial_states[i][jp][k] = s->initial_states[i][jp-1][k];
- a=b=0;
- }
- a += s->rc_stat2[i][j][k][0];
- b += s->rc_stat2[i][j][k][1];
- if (a+b) {
- p = 256.0 * b / (a + b);
- }
- s->initial_states[i][j][k] =
- best_state[av_clip(round(p), 1, 255)][av_clip((a + b) / gob_count, 0, 255)];
- }
- }
- }
- }
-
- if (s->version > 1) {
- s->num_v_slices = (avctx->width > 352 || avctx->height > 288 || !avctx->slices) ? 2 : 1;
- for (; s->num_v_slices < 9; s->num_v_slices++) {
- for (s->num_h_slices = s->num_v_slices; s->num_h_slices < 2*s->num_v_slices; s->num_h_slices++) {
- if (avctx->slices == s->num_h_slices * s->num_v_slices && avctx->slices <= 64 || !avctx->slices)
- goto slices_ok;
- }
- }
- av_log(avctx, AV_LOG_ERROR,
- "Unsupported number %d of slices requested, please specify a "
- "supported number with -slices (ex:4,6,9,12,16, ...)\n",
- avctx->slices);
- return AVERROR(ENOSYS);
-slices_ok:
- if ((ret = write_extradata(s)) < 0)
- return ret;
- }
-
- if ((ret = ffv1_init_slice_contexts(s)) < 0)
- return ret;
- if ((ret = ffv1_init_slices_state(s)) < 0)
- return ret;
-
-#define STATS_OUT_SIZE 1024 * 1024 * 6
- if (avctx->flags & CODEC_FLAG_PASS1) {
- avctx->stats_out = av_mallocz(STATS_OUT_SIZE);
- if (!avctx->stats_out)
- return AVERROR(ENOMEM);
- for (i = 0; i < s->quant_table_count; i++)
- for (j = 0; j < s->slice_count; j++) {
- FFV1Context *sf = s->slice_context[j];
- av_assert0(!sf->rc_stat2[i]);
- sf->rc_stat2[i] = av_mallocz(s->context_count[i] *
- sizeof(*sf->rc_stat2[i]));
- if (!sf->rc_stat2[i])
- return AVERROR(ENOMEM);
- }
- }
-
- return 0;
-}
-
-static void encode_slice_header(FFV1Context *f, FFV1Context *fs)
-{
- RangeCoder *c = &fs->c;
- uint8_t state[CONTEXT_SIZE];
- int j;
- memset(state, 128, sizeof(state));
-
- put_symbol(c, state, (fs->slice_x +1)*f->num_h_slices / f->width , 0);
- put_symbol(c, state, (fs->slice_y +1)*f->num_v_slices / f->height , 0);
- put_symbol(c, state, (fs->slice_width +1)*f->num_h_slices / f->width -1, 0);
- put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0);
- for (j=0; j<f->plane_count; j++) {
- put_symbol(c, state, f->plane[j].quant_table_index, 0);
- av_assert0(f->plane[j].quant_table_index == f->avctx->context_model);
- }
- if (!f->picture.f->interlaced_frame)
- put_symbol(c, state, 3, 0);
- else
- put_symbol(c, state, 1 + !f->picture.f->top_field_first, 0);
- put_symbol(c, state, f->picture.f->sample_aspect_ratio.num, 0);
- put_symbol(c, state, f->picture.f->sample_aspect_ratio.den, 0);
- if (f->version > 3) {
- put_rac(c, state, fs->slice_coding_mode == 1);
- if (fs->slice_coding_mode == 1)
- ffv1_clear_slice_state(f, fs);
- put_symbol(c, state, fs->slice_coding_mode, 0);
- if (fs->slice_coding_mode != 1) {
- put_symbol(c, state, fs->slice_rct_by_coef, 0);
- put_symbol(c, state, fs->slice_rct_ry_coef, 0);
- }
- }
-}
-
-static void choose_rct_params(FFV1Context *fs, uint8_t *src[3], const int stride[3], int w, int h)
-{
-#define NB_Y_COEFF 15
- static const int rct_y_coeff[15][2] = {
- {0, 0}, // 4G
- {1, 1}, // R + 2G + B
- {2, 2}, // 2R + 2B
- {0, 2}, // 2G + 2B
- {2, 0}, // 2R + 2G
- {4, 0}, // 4R
- {0, 4}, // 4B
-
- {0, 3}, // 1G + 3B
- {3, 0}, // 3R + 1G
- {3, 1}, // 3R + B
- {1, 3}, // R + 3B
- {1, 2}, // R + G + 2B
- {2, 1}, // 2R + G + B
- {0, 1}, // 3G + B
- {1, 0}, // R + 3G
- };
-
- int stat[NB_Y_COEFF] = {0};
- int x, y, i, p, best;
- int16_t *sample[3];
- int lbd = fs->bits_per_raw_sample <= 8;
-
- for (y = 0; y < h; y++) {
- int lastr=0, lastg=0, lastb=0;
- for (p = 0; p < 3; p++)
- sample[p] = fs->sample_buffer + p*w;
-
- for (x = 0; x < w; x++) {
- int b, g, r;
- int ab, ag, ar;
- if (lbd) {
- unsigned v = *((uint32_t*)(src[0] + x*4 + stride[0]*y));
- b = v & 0xFF;
- g = (v >> 8) & 0xFF;
- r = (v >> 16) & 0xFF;
- } else {
- b = *((uint16_t*)(src[0] + x*2 + stride[0]*y));
- g = *((uint16_t*)(src[1] + x*2 + stride[1]*y));
- r = *((uint16_t*)(src[2] + x*2 + stride[2]*y));
- }
-
- ar = r - lastr;
- ag = g - lastg;
- ab = b - lastb;
- if (x && y) {
- int bg = ag - sample[0][x];
- int bb = ab - sample[1][x];
- int br = ar - sample[2][x];
-
- br -= bg;
- bb -= bg;
-
- for (i = 0; i<NB_Y_COEFF; i++) {
- stat[i] += FFABS(bg + ((br*rct_y_coeff[i][0] + bb*rct_y_coeff[i][1])>>2));
- }
-
- }
- sample[0][x] = ag;
- sample[1][x] = ab;
- sample[2][x] = ar;
-
- lastr = r;
- lastg = g;
- lastb = b;
- }
- }
-
- best = 0;
- for (i=1; i<NB_Y_COEFF; i++) {
- if (stat[i] < stat[best])
- best = i;
- }
-
- fs->slice_rct_by_coef = rct_y_coeff[best][1];
- fs->slice_rct_ry_coef = rct_y_coeff[best][0];
-}
-
-static int encode_slice(AVCodecContext *c, void *arg)
-{
- FFV1Context *fs = *(void **)arg;
- FFV1Context *f = fs->avctx->priv_data;
- int width = fs->slice_width;
- int height = fs->slice_height;
- int x = fs->slice_x;
- int y = fs->slice_y;
- const AVFrame *const p = f->picture.f;
- const int ps = av_pix_fmt_desc_get(c->pix_fmt)->comp[0].step_minus1 + 1;
- int ret;
- RangeCoder c_bak = fs->c;
- uint8_t *planes[3] = {p->data[0] + ps*x + y*p->linesize[0],
- p->data[1] + ps*x + y*p->linesize[1],
- p->data[2] + ps*x + y*p->linesize[2]};
-
- fs->slice_coding_mode = 0;
- if (f->version > 3) {
- choose_rct_params(fs, planes, p->linesize, width, height);
- } else {
- fs->slice_rct_by_coef = 1;
- fs->slice_rct_ry_coef = 1;
- }
-
-retry:
- if (c->coded_frame->key_frame)
- ffv1_clear_slice_state(f, fs);
- if (f->version > 2) {
- encode_slice_header(f, fs);
- }
- if (!fs->ac) {
- if (f->version > 2)
- put_rac(&fs->c, (uint8_t[]) { 129 }, 0);
- fs->ac_byte_count = f->version > 2 || (!x && !y) ? ff_rac_terminate(&fs->c) : 0;
- init_put_bits(&fs->pb,
- fs->c.bytestream_start + fs->ac_byte_count,
- fs->c.bytestream_end - fs->c.bytestream_start - fs->ac_byte_count);
- }
-
- if (f->colorspace == 0) {
- const int chroma_width = FF_CEIL_RSHIFT(width, f->chroma_h_shift);
- const int chroma_height = FF_CEIL_RSHIFT(height, f->chroma_v_shift);
- const int cx = x >> f->chroma_h_shift;
- const int cy = y >> f->chroma_v_shift;
-
- ret = encode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0);
-
- if (f->chroma_planes) {
- ret |= encode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
- ret |= encode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1);
- }
- if (fs->transparency)
- ret |= encode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2);
- } else {
- ret = encode_rgb_frame(fs, planes, width, height, p->linesize);
- }
- emms_c();
-
- if (ret < 0) {
- av_assert0(fs->slice_coding_mode == 0);
- if (fs->version < 4 || !fs->ac) {
- av_log(c, AV_LOG_ERROR, "Buffer too small\n");
- return ret;
- }
- av_log(c, AV_LOG_DEBUG, "Coding slice as PCM\n");
- fs->slice_coding_mode = 1;
- fs->c = c_bak;
- goto retry;
- }
-
- return 0;
-}
-
-static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
- const AVFrame *pict, int *got_packet)
-{
- FFV1Context *f = avctx->priv_data;
- RangeCoder *const c = &f->slice_context[0]->c;
- AVFrame *const p = f->picture.f;
- int used_count = 0;
- uint8_t keystate = 128;
- uint8_t *buf_p;
- int i, ret;
- int64_t maxsize = FF_MIN_BUFFER_SIZE
- + avctx->width*avctx->height*35LL*4;
-
- if(!pict) {
- if (avctx->flags & CODEC_FLAG_PASS1) {
- int j, k, m;
- char *p = avctx->stats_out;
- char *end = p + STATS_OUT_SIZE;
-
- memset(f->rc_stat, 0, sizeof(f->rc_stat));
- for (i = 0; i < f->quant_table_count; i++)
- memset(f->rc_stat2[i], 0, f->context_count[i] * sizeof(*f->rc_stat2[i]));
-
- for (j = 0; j < f->slice_count; j++) {
- FFV1Context *fs = f->slice_context[j];
- for (i = 0; i < 256; i++) {
- f->rc_stat[i][0] += fs->rc_stat[i][0];
- f->rc_stat[i][1] += fs->rc_stat[i][1];
- }
- for (i = 0; i < f->quant_table_count; i++) {
- for (k = 0; k < f->context_count[i]; k++)
- for (m = 0; m < 32; m++) {
- f->rc_stat2[i][k][m][0] += fs->rc_stat2[i][k][m][0];
- f->rc_stat2[i][k][m][1] += fs->rc_stat2[i][k][m][1];
- }
- }
- }
-
- for (j = 0; j < 256; j++) {
- snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
- f->rc_stat[j][0], f->rc_stat[j][1]);
- p += strlen(p);
- }
- snprintf(p, end - p, "\n");
-
- for (i = 0; i < f->quant_table_count; i++) {
- for (j = 0; j < f->context_count[i]; j++)
- for (m = 0; m < 32; m++) {
- snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
- f->rc_stat2[i][j][m][0], f->rc_stat2[i][j][m][1]);
- p += strlen(p);
- }
- }
- snprintf(p, end - p, "%d\n", f->gob_count);
- }
- return 0;
- }
-
- if (f->version > 3)
- maxsize = FF_MIN_BUFFER_SIZE + avctx->width*avctx->height*3LL*4;
-
- if ((ret = ff_alloc_packet2(avctx, pkt, maxsize)) < 0)
- return ret;
-
- ff_init_range_encoder(c, pkt->data, pkt->size);
- ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);
-
- av_frame_unref(p);
- if ((ret = av_frame_ref(p, pict)) < 0)
- return ret;
- avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
-
- if (avctx->gop_size == 0 || f->picture_number % avctx->gop_size == 0) {
- put_rac(c, &keystate, 1);
- avctx->coded_frame->key_frame = 1;
- f->gob_count++;
- write_header(f);
- } else {
- put_rac(c, &keystate, 0);
- avctx->coded_frame->key_frame = 0;
- }
-
- if (f->ac > 1) {
- int i;
- for (i = 1; i < 256; i++) {
- c->one_state[i] = f->state_transition[i];
- c->zero_state[256 - i] = 256 - c->one_state[i];
- }
- }
-
- for (i = 1; i < f->slice_count; i++) {
- FFV1Context *fs = f->slice_context[i];
- uint8_t *start = pkt->data + (pkt->size - used_count) * (int64_t)i / f->slice_count;
- int len = pkt->size / f->slice_count;
- ff_init_range_encoder(&fs->c, start, len);
- }
- avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL,
- f->slice_count, sizeof(void *));
-
- buf_p = pkt->data;
- for (i = 0; i < f->slice_count; i++) {
- FFV1Context *fs = f->slice_context[i];
- int bytes;
-
- if (fs->ac) {
- uint8_t state = 129;
- put_rac(&fs->c, &state, 0);
- bytes = ff_rac_terminate(&fs->c);
- } else {
- flush_put_bits(&fs->pb); // FIXME: nicer padding
- bytes = fs->ac_byte_count + (put_bits_count(&fs->pb) + 7) / 8;
- }
- if (i > 0 || f->version > 2) {
- av_assert0(bytes < pkt->size / f->slice_count);
- memmove(buf_p, fs->c.bytestream_start, bytes);
- av_assert0(bytes < (1 << 24));
- AV_WB24(buf_p + bytes, bytes);
- bytes += 3;
- }
- if (f->ec) {
- unsigned v;
- buf_p[bytes++] = 0;
- v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, bytes);
- AV_WL32(buf_p + bytes, v);
- bytes += 4;
- }
- buf_p += bytes;
- }
-
- if (avctx->flags & CODEC_FLAG_PASS1)
- avctx->stats_out[0] = '\0';
-
- f->picture_number++;
- pkt->size = buf_p - pkt->data;
- pkt->pts =
- pkt->dts = pict->pts;
- pkt->flags |= AV_PKT_FLAG_KEY * avctx->coded_frame->key_frame;
- *got_packet = 1;
-
- return 0;
-}
-
-static av_cold int encode_close(AVCodecContext *avctx)
-{
- av_frame_free(&avctx->coded_frame);
- ffv1_close(avctx);
- return 0;
-}
-
-#define OFFSET(x) offsetof(FFV1Context, x)
-#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
-static const AVOption options[] = {
- { "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
- { NULL }
-};
-
-static const AVClass ffv1_class = {
- .class_name = "ffv1 encoder",
- .item_name = av_default_item_name,
- .option = options,
- .version = LIBAVUTIL_VERSION_INT,
-};
-
-static const AVCodecDefault ffv1_defaults[] = {
- { "coder", "-1" },
- { NULL },
-};
-
-AVCodec ff_ffv1_encoder = {
- .name = "ffv1",
- .long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"),
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_FFV1,
- .priv_data_size = sizeof(FFV1Context),
- .init = encode_init,
- .encode2 = encode_frame,
- .close = encode_close,
- .capabilities = CODEC_CAP_SLICE_THREADS | CODEC_CAP_DELAY,
- .pix_fmts = (const enum AVPixelFormat[]) {
- AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV444P,
- AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV411P,
- AV_PIX_FMT_YUV410P, AV_PIX_FMT_0RGB32, AV_PIX_FMT_RGB32, AV_PIX_FMT_YUV420P16,
- AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9,
- AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
- AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16,
- AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10,
- AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA420P9,
- AV_PIX_FMT_GRAY16, AV_PIX_FMT_GRAY8, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
- AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
- AV_PIX_FMT_NONE
-
- },
- .defaults = ffv1_defaults,
- .priv_class = &ffv1_class,
-};
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 19:11:47 +0000