FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/ffv1enc_template.c
Date: 2021-09-24 20:55:06
Exec Total Coverage
Lines: 94 117 80.3%
Branches: 32 40 80.0%

Line Branch Exec Source
1 /*
2 * FFV1 encoder template
3 *
4 * Copyright (c) 2003-2016 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 3097200 static av_always_inline int RENAME(encode_line)(FFV1Context *s, int w,
24 TYPE *sample[3],
25 int plane_index, int bits)
26 {
27 3097200 PlaneContext *const p = &s->plane[plane_index];
28 3097200 RangeCoder *const c = &s->c;
29 int x;
30 3097200 int run_index = s->run_index;
31 3097200 int run_count = 0;
32 3097200 int run_mode = 0;
33
34
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3097200 if (s->ac != AC_GOLOMB_RICE) {
35
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1659600 if (c->bytestream_end - c->bytestream < w * 35) {
36 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
37 return AVERROR_INVALIDDATA;
38 }
39 } else {
40
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1437600 if (put_bytes_left(&s->pb, 0) < w * 4) {
41 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
42 return AVERROR_INVALIDDATA;
43 }
44 }
45
46
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3097200 if (s->slice_coding_mode == 1) {
47 for (x = 0; x < w; x++) {
48 int i;
49 int v = sample[0][x];
50 for (i = bits-1; i>=0; i--) {
51 uint8_t state = 128;
52 put_rac(c, &state, (v>>i) & 1);
53 }
54 }
55 return 0;
56 }
57
58
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494740200 for (x = 0; x < w; x++) {
59 int diff, context;
60
61 491643000 context = RENAME(get_context)(p, sample[0] + x, sample[1] + x, sample[2] + x);
62 491643000 diff = sample[0][x] - RENAME(predict)(sample[0] + x, sample[1] + x);
63
64
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491643000 if (context < 0) {
65 194838466 context = -context;
66 194838466 diff = -diff;
67 }
68
69 491643000 diff = fold(diff, bits);
70
71
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491643000 if (s->ac != AC_GOLOMB_RICE) {
72
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262666000 if (s->flags & AV_CODEC_FLAG_PASS1) {
73 put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat,
74 s->rc_stat2[p->quant_table_index][context]);
75 } else {
76 262666000 put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL);
77 }
78 } else {
79
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228977000 if (context == 0)
80 5982346 run_mode = 1;
81
82
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228977000 if (run_mode) {
83
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9646060 if (diff) {
84
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5032674 while (run_count >= 1 << ff_log2_run[run_index]) {
85 2388242 run_count -= 1 << ff_log2_run[run_index];
86 2388242 run_index++;
87 2388242 put_bits(&s->pb, 1, 1);
88 }
89
90 2644432 put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count);
91
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2644432 if (run_index)
92 2442634 run_index--;
93 2644432 run_count = 0;
94 2644432 run_mode = 0;
95
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2644432 if (diff > 0)
96 1234600 diff--;
97 } else {
98 7001628 run_count++;
99 }
100 }
101
102 ff_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
103 run_count, run_index, run_mode, x,
104 (int)put_bits_count(&s->pb));
105
106
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228977000 if (run_mode == 0)
107 221975372 put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits);
108 }
109 }
110
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3097200 if (run_mode) {
111
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179600 while (run_count >= 1 << ff_log2_run[run_index]) {
112 75690 run_count -= 1 << ff_log2_run[run_index];
113 75690 run_index++;
114 75690 put_bits(&s->pb, 1, 1);
115 }
116
117
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103910 if (run_count)
118 68520 put_bits(&s->pb, 1, 1);
119 }
120 3097200 s->run_index = run_index;
121
122 3097200 return 0;
123 }
124
125 1600 static int RENAME(encode_rgb_frame)(FFV1Context *s, const uint8_t *src[4],
126 int w, int h, const int stride[4])
127 {
128 int x, y, p, i;
129 1600 const int ring_size = s->context_model ? 3 : 2;
130 TYPE *sample[4][3];
131 1600 int lbd = s->bits_per_raw_sample <= 8;
132 1600 int packed = !src[1];
133 1600 int bits = s->bits_per_raw_sample > 0 ? s->bits_per_raw_sample : 8;
134 1600 int offset = 1 << bits;
135 1600 int transparency = s->transparency;
136 1600 int packed_size = (3 + transparency)*2;
137
138 1600 s->run_index = 0;
139
140 1600 memset(RENAME(s->sample_buffer), 0, ring_size * MAX_PLANES *
141 1600 (w + 6) * sizeof(*RENAME(s->sample_buffer)));
142
143 181200 for (y = 0; y < h; y++) {
144 538800 for (i = 0; i < ring_size; i++)
145 1796000 for (p = 0; p < MAX_PLANES; p++)
146 1436800 sample[p][i]= RENAME(s->sample_buffer) + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3;
147
148 30708000 for (x = 0; x < w; x++) {
149 30528400 int b, g, r, av_uninit(a);
150 30528400 if (lbd) {
151 15264200 unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
152 15264200 b = v & 0xFF;
153 15264200 g = (v >> 8) & 0xFF;
154 15264200 r = (v >> 16) & 0xFF;
155 15264200 a = v >> 24;
156 15264200 } else if (packed) {
157 15264200 const uint16_t *p = ((const uint16_t*)(src[0] + x*packed_size + stride[0]*y));
158 15264200 r = p[0];
159 15264200 g = p[1];
160 15264200 b = p[2];
161 15264200 if (transparency)
162 a = p[3];
163 } else if (sizeof(TYPE) == 4 || transparency) {
164 g = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
165 b = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
166 r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
167 if (transparency)
168 a = *((const uint16_t *)(src[3] + x*2 + stride[3]*y));
169 } else {
170 b = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
171 g = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
172 r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
173 }
174
175 30528400 if (s->slice_coding_mode != 1) {
176 30528400 b -= g;
177 30528400 r -= g;
178 30528400 g += (b * s->slice_rct_by_coef + r * s->slice_rct_ry_coef) >> 2;
179 30528400 b += offset;
180 30528400 r += offset;
181 }
182
183 30528400 sample[0][0][x] = g;
184 30528400 sample[1][0][x] = b;
185 30528400 sample[2][0][x] = r;
186 30528400 sample[3][0][x] = a;
187 }
188 718400 for (p = 0; p < 3 + transparency; p++) {
189 int ret;
190 538800 sample[p][0][-1] = sample[p][1][0 ];
191 538800 sample[p][1][ w] = sample[p][1][w-1];
192 538800 if (lbd && s->slice_coding_mode == 0)
193 269400 ret = RENAME(encode_line)(s, w, sample[p], (p + 1) / 2, 9);
194 else
195 269400 ret = RENAME(encode_line)(s, w, sample[p], (p + 1) / 2, bits + (s->slice_coding_mode != 1));
196 538800 if (ret < 0)
197 return ret;
198 }
199 }
200 1600 return 0;
201 }
202
203