FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/container_fifo.c
Date: 2024-09-07 18:49:03
Exec Total Coverage
Lines: 68 83 81.9%
Functions: 14 14 100.0%
Branches: 12 22 54.5%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "libavutil/error.h"
20 #include "libavutil/fifo.h"
21 #include "libavutil/frame.h"
22 #include "libavutil/mem.h"
23
24 #include "container_fifo.h"
25 #include "refstruct.h"
26
27 struct ContainerFifo {
28 AVFifo *fifo;
29 FFRefStructPool *pool;
30
31 void* (*container_alloc)(void);
32 void (*container_reset)(void *obj);
33 void (*container_free) (void *obj);
34 int (*fifo_write) (void *dst, void *src);
35 int (*fifo_read) (void *dst, void *src);
36
37 };
38
39 455 static int container_fifo_init_entry(FFRefStructOpaque opaque, void *obj)
40 {
41 455 ContainerFifo *cf = opaque.nc;
42 455 void **pobj = obj;
43
44 455 *pobj = cf->container_alloc();
45
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 455 if (!*pobj)
46 ✗ return AVERROR(ENOMEM);
47
48 455 return 0;
49 }
50
51 9384 static void container_fifo_reset_entry(FFRefStructOpaque opaque, void *obj)
52 {
53 9384 ContainerFifo *cf = opaque.nc;
54 9384 cf->container_reset(*(void**)obj);
55 9384 }
56
57 455 static void container_fifo_free_entry(FFRefStructOpaque opaque, void *obj)
58 {
59 455 ContainerFifo *cf = opaque.nc;
60 455 cf->container_free(*(void**)obj);
61 455 }
62
63 ContainerFifo*
64 434 ff_container_fifo_alloc(void* (*container_alloc)(void),
65 void (*container_reset)(void *obj),
66 void (*container_free) (void *obj),
67 int (*fifo_write) (void *dst, void *src),
68 int (*fifo_read) (void *dst, void *src))
69 {
70 ContainerFifo *cf;
71
72 434 cf = av_mallocz(sizeof(*cf));
73
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 434 if (!cf)
74 ✗ return NULL;
75
76 434 cf->container_alloc = container_alloc;
77 434 cf->container_reset = container_reset;
78 434 cf->container_free = container_free;
79 434 cf->fifo_write = fifo_write;
80 434 cf->fifo_read = fifo_read;
81
82 434 cf->fifo = av_fifo_alloc2(1, sizeof(void*), AV_FIFO_FLAG_AUTO_GROW);
83
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 434 if (!cf->fifo)
84 ✗ goto fail;
85
86 434 cf->pool = ff_refstruct_pool_alloc_ext(sizeof(void*), 0, cf,
87 container_fifo_init_entry,
88 container_fifo_reset_entry,
89 container_fifo_free_entry,
90 NULL);
91
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 434 if (!cf->pool)
92 ✗ goto fail;
93
94 434 return cf;
95 ✗ fail:
96 ✗ ff_container_fifo_free(&cf);
97 ✗ return NULL;
98 }
99
100 434 void ff_container_fifo_free(ContainerFifo **pcf)
101 {
102 ContainerFifo *cf;
103
104
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 434 if (!*pcf)
105 ✗ return;
106
107 434 cf = *pcf;
108
109
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 434 if (cf->fifo) {
110 void *obj;
111
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 434 while (av_fifo_read(cf->fifo, &obj, 1) >= 0)
112 ✗ ff_refstruct_unref(&obj);
113 434 av_fifo_freep2(&cf->fifo);
114 }
115
116 434 ff_refstruct_pool_uninit(&cf->pool);
117
118 434 av_freep(pcf);
119 }
120
121 10546 int ff_container_fifo_read(ContainerFifo *cf, void *obj)
122 {
123 void **psrc;
124 int ret;
125
126 10546 ret = av_fifo_read(cf->fifo, &psrc, 1);
127
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 10546 if (ret < 0)
128 1162 return ret;
129
130 9384 ret = cf->fifo_read(obj, *psrc);
131 9384 ff_refstruct_unref(&psrc);
132
133 9384 return ret;
134 }
135
136 9384 int ff_container_fifo_write(ContainerFifo *cf, void *obj)
137 {
138 void **pdst;
139 int ret;
140
141 9384 pdst = ff_refstruct_pool_get(cf->pool);
142
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 9384 if (!pdst)
143 ✗ return AVERROR(ENOMEM);
144
145 9384 ret = cf->fifo_write(*pdst, obj);
146
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 9384 if (ret < 0)
147 ✗ goto fail;
148
149 9384 ret = av_fifo_write(cf->fifo, &pdst, 1);
150
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 9384 if (ret < 0)
151 ✗ goto fail;
152
153 9384 return 0;
154 ✗ fail:
155 ✗ ff_refstruct_unref(&pdst);
156 ✗ return ret;
157 }
158
159 20090 size_t ff_container_fifo_can_read(ContainerFifo *cf)
160 {
161 20090 return av_fifo_can_read(cf->fifo);
162 }
163
164 455 static void *frame_alloc(void)
165 {
166 455 return av_frame_alloc();
167 }
168
169 9384 static void frame_reset(void *obj)
170 {
171 9384 av_frame_unref(obj);
172 9384 }
173
174 455 static void frame_free(void *obj)
175 {
176 455 AVFrame *frame = obj;
177 455 av_frame_free(&frame);
178 455 }
179
180 9384 static int frame_ref(void *dst, void *src)
181 {
182 9384 return av_frame_ref(dst, src);
183 }
184
185 9384 static int frame_move_ref(void *dst, void *src)
186 {
187 9384 av_frame_move_ref(dst, src);
188 9384 return 0;
189 }
190
191 434 ContainerFifo *ff_container_fifo_alloc_avframe(unsigned flags)
192 {
193 434 return ff_container_fifo_alloc(frame_alloc, frame_reset, frame_free,
194 frame_ref, frame_move_ref);
195 }
196