| /* |
| * 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; |
| |
| if (!one_state[j]) |
| continue; |
| |
| 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 = 1; 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 |
| |
| ff_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 != 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 = 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 != 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 encode_plane(FFV1Context *s, uint8_t *src, int w, int h, |
| int stride, int plane_index, int pixel_stride) |
| { |
| int x, y, i, ret; |
| const int ring_size = s->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 * pixel_stride + 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, const uint8_t *src[3], |
| int w, int h, const int stride[3]) |
| { |
| int x, y, p, i; |
| const int ring_size = s->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 = *((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 { |
| 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 + 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 == AC_RANGE_CUSTOM_TAB) { |
| 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->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 + AV_INPUT_BUFFER_PADDING_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 == AC_RANGE_CUSTOM_TAB) |
| 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 = ff_ffv1_common_init(avctx)) < 0) |
| return ret; |
| |
| s->version = 0; |
| |
| if ((avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) || |
| avctx->slices > 1) |
| s->version = FFMAX(s->version, 2); |
| |
| // Unspecified level & slices, we choose version 1.2+ to ensure multithreaded decodability |
| if (avctx->slices == 0 && avctx->level < 0 && avctx->width * avctx->height > 720*576) |
| s->version = FFMAX(s->version, 2); |
| |
| if (avctx->level <= 0 && s->version == 2) { |
| s->version = 3; |
| } |
| if (avctx->level >= 0 && avctx->level <= 4) { |
| if (avctx->level < s->version) { |
| av_log(avctx, AV_LOG_ERROR, "Version %d needed for requested features but %d requested\n", s->version, avctx->level); |
| return AVERROR(EINVAL); |
| } |
| 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; |
| } |
| |
| #if FF_API_CODER_TYPE |
| FF_DISABLE_DEPRECATION_WARNINGS |
| if (avctx->coder_type != -1) |
| s->ac = avctx->coder_type > 0 ? AC_RANGE_CUSTOM_TAB : AC_GOLOMB_RICE; |
| else |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif |
| if (s->ac == 1) // Compatbility with common command line usage |
| s->ac = AC_RANGE_CUSTOM_TAB; |
| else if (s->ac == AC_RANGE_DEFAULT_TAB_FORCE) |
| s->ac = AC_RANGE_DEFAULT_TAB; |
| |
| 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 == AC_GOLOMB_RICE) { |
| av_log(avctx, AV_LOG_INFO, |
| "bits_per_raw_sample > 8, forcing range coder\n"); |
| s->ac = AC_RANGE_CUSTOM_TAB; |
| } |
| s->version = FFMAX(s->version, 1); |
| case AV_PIX_FMT_GRAY8: |
| case AV_PIX_FMT_YA8: |
| 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 || desc->nb_components == 2; |
| if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) |
| s->bits_per_raw_sample = 8; |
| else if (!s->bits_per_raw_sample) |
| s->bits_per_raw_sample = 8; |
| break; |
| case AV_PIX_FMT_RGB32: |
| s->colorspace = 1; |
| s->transparency = 1; |
| s->chroma_planes = 1; |
| if (!avctx->bits_per_raw_sample) |
| s->bits_per_raw_sample = 8; |
| break; |
| case AV_PIX_FMT_0RGB32: |
| s->colorspace = 1; |
| s->chroma_planes = 1; |
| if (!avctx->bits_per_raw_sample) |
| s->bits_per_raw_sample = 8; |
| 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 == AC_GOLOMB_RICE) { |
| av_log(avctx, AV_LOG_INFO, |
| "bits_per_raw_sample > 8, forcing coder 1\n"); |
| s->ac = AC_RANGE_CUSTOM_TAB; |
| } |
| break; |
| default: |
| av_log(avctx, AV_LOG_ERROR, "format not supported\n"); |
| return AVERROR(ENOSYS); |
| } |
| av_assert0(s->bits_per_raw_sample >= 8); |
| |
| if (s->transparency) { |
| av_log(avctx, AV_LOG_WARNING, "Storing alpha plane, this will require a recent FFV1 decoder to playback!\n"); |
| } |
| #if FF_API_PRIVATE_OPT |
| FF_DISABLE_DEPRECATION_WARNINGS |
| if (avctx->context_model) |
| s->context_model = avctx->context_model; |
| 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); |
| } |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif |
| |
| if (s->ac == AC_RANGE_CUSTOM_TAB) { |
| for (i = 1; i < 256; i++) |
| s->state_transition[i] = ver2_state[i]; |
| } else { |
| RangeCoder c; |
| ff_build_rac_states(&c, 0.05 * (1LL << 32), 256 - 8); |
| for (i = 1; i < 256; i++) |
| s->state_transition[i] = c.one_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[s->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 = s->context_model; |
| p->context_count = s->context_count[p->quant_table_index]; |
| } |
| |
| if ((ret = ff_ffv1_allocate_initial_states(s)) < 0) |
| return ret; |
| |
| #if FF_API_CODED_FRAME |
| FF_DISABLE_DEPRECATION_WARNINGS |
| avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif |
| |
| 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 & (AV_CODEC_FLAG_PASS1 | AV_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] = av_malloc_array(256, 256); |
| int gob_count = 0; |
| char *next; |
| if (!best_state) |
| return AVERROR(ENOMEM); |
| |
| 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); |
| av_freep(&best_state); |
| 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); |
| av_freep(&best_state); |
| 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"); |
| av_freep(&best_state); |
| return AVERROR_INVALIDDATA; |
| } |
| p = next; |
| while (*p == '\n' || *p == ' ') |
| p++; |
| if (p[0] == 0) |
| break; |
| } |
| if (s->ac == AC_RANGE_CUSTOM_TAB) |
| 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_uint8((a + b) / gob_count)]; |
| 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_uint8((a + b) / gob_count)]; |
| } |
| } |
| } |
| av_freep(&best_state); |
| } |
| |
| 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 = ff_ffv1_init_slice_contexts(s)) < 0) |
| return ret; |
| s->slice_count = s->max_slice_count; |
| if ((ret = ff_ffv1_init_slices_state(s)) < 0) |
| return ret; |
| |
| #define STATS_OUT_SIZE 1024 * 1024 * 6 |
| if (avctx->flags & AV_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->max_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->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) |
| ff_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, const 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 = *((const uint32_t*)(src[0] + x*4 + stride[0]*y)); |
| b = v & 0xFF; |
| g = (v >> 8) & 0xFF; |
| r = (v >> 16) & 0xFF; |
| } 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)); |
| } |
| |
| 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; |
| int ret; |
| RangeCoder c_bak = fs->c; |
| const 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 (f->key_frame) |
| ff_ffv1_clear_slice_state(f, fs); |
| if (f->version > 2) { |
| encode_slice_header(f, fs); |
| } |
| if (fs->ac == AC_GOLOMB_RICE) { |
| 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 && c->pix_fmt != AV_PIX_FMT_YA8) { |
| const int chroma_width = AV_CEIL_RSHIFT(width, f->chroma_h_shift); |
| const int chroma_height = AV_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, 1); |
| |
| 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, 1); |
| ret |= encode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1, 1); |
| } |
| if (fs->transparency) |
| ret |= encode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2, 1); |
| } else if (c->pix_fmt == AV_PIX_FMT_YA8) { |
| ret = encode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0, 2); |
| ret |= encode_plane(fs, p->data[0] + 1 + ps*x + y*p->linesize[0], width, height, p->linesize[0], 1, 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 = AV_INPUT_BUFFER_MIN_SIZE |
| + avctx->width*avctx->height*35LL*4; |
| |
| if(!pict) { |
| if (avctx->flags & AV_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])); |
| |
| av_assert0(f->slice_count == f->max_slice_count); |
| 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 = AV_INPUT_BUFFER_MIN_SIZE + avctx->width*avctx->height*3LL*4; |
| |
| if ((ret = ff_alloc_packet2(avctx, pkt, maxsize, 0)) < 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); |
| f->key_frame = 1; |
| f->gob_count++; |
| write_header(f); |
| } else { |
| put_rac(c, &keystate, 0); |
| f->key_frame = 0; |
| } |
| |
| if (f->ac == AC_RANGE_CUSTOM_TAB) { |
| 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 != AC_GOLOMB_RICE) { |
| 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 & AV_CODEC_FLAG_PASS1) |
| avctx->stats_out[0] = '\0'; |
| |
| #if FF_API_CODED_FRAME |
| FF_DISABLE_DEPRECATION_WARNINGS |
| avctx->coded_frame->key_frame = f->key_frame; |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif |
| |
| f->picture_number++; |
| pkt->size = buf_p - pkt->data; |
| pkt->pts = |
| pkt->dts = pict->pts; |
| pkt->flags |= AV_PKT_FLAG_KEY * f->key_frame; |
| *got_packet = 1; |
| |
| return 0; |
| } |
| |
| static av_cold int encode_close(AVCodecContext *avctx) |
| { |
| ff_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_BOOL, { .i64 = -1 }, -1, 1, VE }, |
| { "coder", "Coder type", OFFSET(ac), AV_OPT_TYPE_INT, |
| { .i64 = 0 }, -2, 2, VE, "coder" }, |
| { "rice", "Golomb rice", 0, AV_OPT_TYPE_CONST, |
| { .i64 = AC_GOLOMB_RICE }, INT_MIN, INT_MAX, VE, "coder" }, |
| { "range_def", "Range with default table", 0, AV_OPT_TYPE_CONST, |
| { .i64 = AC_RANGE_DEFAULT_TAB_FORCE }, INT_MIN, INT_MAX, VE, "coder" }, |
| { "range_tab", "Range with custom table", 0, AV_OPT_TYPE_CONST, |
| { .i64 = AC_RANGE_CUSTOM_TAB }, INT_MIN, INT_MAX, VE, "coder" }, |
| { "ac", "Range with custom table (the ac option exists for compatibility and is deprecated)", 0, AV_OPT_TYPE_CONST, |
| { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" }, |
| { "context", "Context model", OFFSET(context_model), AV_OPT_TYPE_INT, |
| { .i64 = 0 }, 0, 1, VE }, |
| |
| { NULL } |
| }; |
| |
| static const AVClass ffv1_class = { |
| .class_name = "ffv1 encoder", |
| .item_name = av_default_item_name, |
| .option = options, |
| .version = LIBAVUTIL_VERSION_INT, |
| }; |
| |
| #if FF_API_CODER_TYPE |
| static const AVCodecDefault ffv1_defaults[] = { |
| { "coder", "-1" }, |
| { NULL }, |
| }; |
| #endif |
| |
| 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 = AV_CODEC_CAP_SLICE_THREADS | AV_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_YA8, |
| AV_PIX_FMT_NONE |
| |
| }, |
| #if FF_API_CODER_TYPE |
| .defaults = ffv1_defaults, |
| #endif |
| .priv_class = &ffv1_class, |
| }; |
