FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavcodec/ffv1enc_template.c	Lines:	94	117	80.3 %
Date:	2020-04-04 00:26:16	Branches:	32	40	80.0 %


/*
 * FFV1 encoder template
 *
 * Copyright (c) 2003-2016 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

static av_always_inline int RENAME(encode_line)(FFV1Context *s, int w,
                                                TYPE *sample[3],
                                                int plane_index, int bits)
{
    PlaneContext *const p = &s->plane[plane_index];
    RangeCoder *const c   = &s->c;
    int x;
    int run_index = s->run_index;
    int run_count = 0;
    int run_mode  = 0;

    if (s->ac != AC_GOLOMB_RICE) {
        if (c->bytestream_end - c->bytestream < w * 35) {
            av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
            return AVERROR_INVALIDDATA;
        }
    } else {
        if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < w * 4) {
            av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
            return AVERROR_INVALIDDATA;
        }
    }

    if (s->slice_coding_mode == 1) {
        for (x = 0; x < w; x++) {
            int i;
            int v = sample[0][x];
            for (i = bits-1; i>=0; i--) {
                uint8_t state = 128;
                put_rac(c, &state, (v>>i) & 1);
            }
        }
        return 0;
    }

    for (x = 0; x < w; x++) {
        int diff, context;

        context = RENAME(get_context)(p, sample[0] + x, sample[1] + x, sample[2] + x);
        diff    = sample[0][x] - RENAME(predict)(sample[0] + x, sample[1] + x);

        if (context < 0) {
            context = -context;
            diff    = -diff;
        }

        diff = fold(diff, bits);

        if (s->ac != AC_GOLOMB_RICE) {
            if (s->flags & AV_CODEC_FLAG_PASS1) {
                put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat,
                                  s->rc_stat2[p->quant_table_index][context]);
            } else {
                put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL);
            }
        } else {
            if (context == 0)
                run_mode = 1;

            if (run_mode) {
                if (diff) {
                    while (run_count >= 1 << ff_log2_run[run_index]) {
                        run_count -= 1 << ff_log2_run[run_index];
                        run_index++;
                        put_bits(&s->pb, 1, 1);
                    }

                    put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count);
                    if (run_index)
                        run_index--;
                    run_count = 0;
                    run_mode  = 0;
                    if (diff > 0)
                        diff--;
                } else {
                    run_count++;
                }
            }

            ff_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
                    run_count, run_index, run_mode, x,
                    (int)put_bits_count(&s->pb));

            if (run_mode == 0)
                put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits);
        }
    }
    if (run_mode) {
        while (run_count >= 1 << ff_log2_run[run_index]) {
            run_count -= 1 << ff_log2_run[run_index];
            run_index++;
            put_bits(&s->pb, 1, 1);
        }

        if (run_count)
            put_bits(&s->pb, 1, 1);
    }
    s->run_index = run_index;

    return 0;
}

static int RENAME(encode_rgb_frame)(FFV1Context *s, const uint8_t *src[4],
                                    int w, int h, const int stride[4])
{
    int x, y, p, i;
    const int ring_size = s->context_model ? 3 : 2;
    TYPE *sample[4][3];
    int lbd    = s->bits_per_raw_sample <= 8;
    int packed = !src[1];
    int bits   = s->bits_per_raw_sample > 0 ? s->bits_per_raw_sample : 8;
    int offset = 1 << bits;
    int transparency = s->transparency;
    int packed_size = (3 + transparency)*2;

    s->run_index = 0;

    memset(RENAME(s->sample_buffer), 0, ring_size * MAX_PLANES *
           (w + 6) * sizeof(*RENAME(s->sample_buffer)));

    for (y = 0; y < h; y++) {
        for (i = 0; i < ring_size; i++)
            for (p = 0; p < MAX_PLANES; p++)
                sample[p][i]= RENAME(s->sample_buffer) + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3;

        for (x = 0; x < w; x++) {
            int b, g, r, av_uninit(a);
            if (lbd) {
                unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
                b =  v        & 0xFF;
                g = (v >>  8) & 0xFF;
                r = (v >> 16) & 0xFF;
                a =  v >> 24;
            } else if (packed) {
                const uint16_t *p = ((const uint16_t*)(src[0] + x*packed_size + stride[0]*y));
                r = p[0];
                g = p[1];
                b = p[2];
                if (transparency)
                  a = p[3];
            } else if (sizeof(TYPE) == 4 || transparency) {
                g = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
                b = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
                r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
                if (transparency)
                    a = *((const uint16_t *)(src[3] + x*2 + stride[3]*y));
            } else {
                b = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
                g = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
                r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
            }

            if (s->slice_coding_mode != 1) {
                b -= g;
                r -= g;
                g += (b * s->slice_rct_by_coef + r * s->slice_rct_ry_coef) >> 2;
                b += offset;
                r += offset;
            }

            sample[0][0][x] = g;
            sample[1][0][x] = b;
            sample[2][0][x] = r;
            sample[3][0][x] = a;
        }
        for (p = 0; p < 3 + transparency; p++) {
            int ret;
            sample[p][0][-1] = sample[p][1][0  ];
            sample[p][1][ w] = sample[p][1][w-1];
            if (lbd && s->slice_coding_mode == 0)
                ret = RENAME(encode_line)(s, w, sample[p], (p + 1) / 2, 9);
            else
                ret = RENAME(encode_line)(s, w, sample[p], (p + 1) / 2, bits + (s->slice_coding_mode != 1));
            if (ret < 0)
                return ret;
        }
    }
    return 0;
}



Generated by: GCOVR (Version 4.2)

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		3054000	static av_always_inline int RENAME(encode_line)(FFV1Context *s, int w,
24			TYPE *sample[3],
25			int plane_index, int bits)
26			{
27		3054000	PlaneContext *const p = &s->plane[plane_index];
28		3054000	RangeCoder *const c = &s->c;
29			int x;
30		3054000	int run_index = s->run_index;
31		3054000	int run_count = 0;
32		3054000	int run_mode = 0;
33
34	✓✓	3054000	if (s->ac != AC_GOLOMB_RICE) {
35	✗✓	1616400	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	✗✓	1437600	if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < w * 4) {
41			av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
42			return AVERROR_INVALIDDATA;
43			}
44			}
45
46	✗✓	3054000	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	✓✓	476265000	for (x = 0; x < w; x++) {
59			int diff, context;
60
61		473211000	context = RENAME(get_context)(p, sample[0] + x, sample[1] + x, sample[2] + x);
62		473211000	diff = sample[0][x] - RENAME(predict)(sample[0] + x, sample[1] + x);
63
64	✓✓	473211000	if (context < 0) {
65		193289076	context = -context;
66		193289076	diff = -diff;
67			}
68
69		473211000	diff = fold(diff, bits);
70
71	✓✓	473211000	if (s->ac != AC_GOLOMB_RICE) {
72	✗✓	244234000	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		244234000	put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL);
77			}
78			} else {
79	✓✓	228977000	if (context == 0)
80		5982346	run_mode = 1;
81
82	✓✓	228977000	if (run_mode) {
83	✓✓	9646060	if (diff) {
84	✓✓	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	✓✓	2644432	if (run_index)
92		2442634	run_index--;
93		2644432	run_count = 0;
94		2644432	run_mode = 0;
95	✓✓	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	✓✓	228977000	if (run_mode == 0)
107		221975372	put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits);
108			}
109			}
110	✓✓	3054000	if (run_mode) {
111	✓✓	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	✓✓	103910	if (run_count)
118		68520	put_bits(&s->pb, 1, 1);
119			}
120		3054000	s->run_index = run_index;
121
122		3054000	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) + pring_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] + x4 + 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] + xpacked_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] + x2 + stride[0]y));
165			b = ((const uint16_t )(src[1] + x2 + stride[1]y));
166			r = ((const uint16_t )(src[2] + x2 + stride[2]y));
167			if (transparency)
168			a = ((const uint16_t )(src[3] + x2 + stride[3]y));
169			} else {
170			b = ((const uint16_t )(src[0] + x2 + stride[0]y));
171			g = ((const uint16_t )(src[1] + x2 + stride[1]y));
172			r = ((const uint16_t )(src[2] + x2 + 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