FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/cbs_bsf.c
Date: 2026-01-23 19:11:46
Exec Total Coverage
Lines: 69 91 75.8%
Functions: 4 4 100.0%
Branches: 23 36 63.9%
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 "bsf.h"
20 #include "bsf_internal.h"
21 #include "cbs_bsf.h"
22
23 #include "libavutil/attributes.h"
24
25 7648 static int cbs_bsf_update_side_data(AVBSFContext *bsf, AVPacket *pkt)
26 {
27 7648 CBSBSFContext *ctx = bsf->priv_data;
28 7648 CodedBitstreamFragment *frag = &ctx->fragment;
29 uint8_t *side_data;
30 int err;
31
32
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 7648 if (!av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, NULL))
33 7647 return 0;
34
35 1 err = ff_cbs_read_packet_side_data(ctx->input, frag, pkt);
36
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 1 if (err < 0) {
37 ✗ av_log(bsf, AV_LOG_ERROR,
38 "Failed to read extradata from packet side data.\n");
39 ✗ return err;
40 }
41
42 1 err = ctx->type->update_fragment(bsf, NULL, frag);
43
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 1 if (err < 0)
44 ✗ return err;
45
46 1 err = ff_cbs_write_fragment_data(ctx->output, frag);
47
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 1 if (err < 0) {
48 ✗ av_log(bsf, AV_LOG_ERROR,
49 "Failed to write extradata into packet side data.\n");
50 ✗ return err;
51 }
52
53 1 side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
54 frag->data_size);
55
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 1 if (!side_data)
56 ✗ return AVERROR(ENOMEM);
57 1 memcpy(side_data, frag->data, frag->data_size);
58
59 1 ff_cbs_fragment_reset(frag);
60 1 return 0;
61 }
62
63 15398 int ff_cbs_bsf_generic_filter(AVBSFContext *bsf, AVPacket *pkt)
64 {
65 15398 CBSBSFContext *ctx = bsf->priv_data;
66 15398 CodedBitstreamFragment *frag = &ctx->fragment;
67 int err;
68
69 15398 err = ff_bsf_get_packet_ref(bsf, pkt);
70
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 15398 if (err < 0)
71 7750 return err;
72
73 7648 err = cbs_bsf_update_side_data(bsf, pkt);
74
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 7648 if (err < 0)
75 ✗ goto fail;
76
77 7648 err = ff_cbs_read_packet(ctx->input, frag, pkt);
78
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 7648 if (err < 0) {
79 1 av_log(bsf, AV_LOG_ERROR, "Failed to read %s from packet.\n",
80 1 ctx->type->fragment_name);
81 1 goto fail;
82 }
83
84
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 7647 if (frag->nb_units == 0) {
85 ✗ av_log(bsf, AV_LOG_ERROR, "No %s found in packet.\n",
86 ✗ ctx->type->unit_name);
87 ✗ err = AVERROR_INVALIDDATA;
88 ✗ goto fail;
89 }
90
91 7647 err = ctx->type->update_fragment(bsf, pkt, frag);
92
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 7647 if (err < 0)
93 ✗ goto fail;
94
95 7647 err = ff_cbs_write_packet(ctx->output, pkt, frag);
96
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 7647 if (err < 0) {
97 ✗ av_log(bsf, AV_LOG_ERROR, "Failed to write %s into packet.\n",
98 ✗ ctx->type->fragment_name);
99 ✗ goto fail;
100 }
101
102 7647 err = 0;
103 7648 fail:
104 7648 ff_cbs_fragment_reset(frag);
105
106
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 7648 if (err < 0)
107 1 av_packet_unref(pkt);
108
109 7648 return err;
110 }
111
112 104 av_cold int ff_cbs_bsf_generic_init(AVBSFContext *bsf, const CBSBSFType *type)
113 {
114 104 CBSBSFContext *ctx = bsf->priv_data;
115 104 CodedBitstreamFragment *frag = &ctx->fragment;
116 int err;
117
118 104 ctx->type = type;
119
120 104 err = ff_cbs_init(&ctx->input, type->codec_id, bsf);
121
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 104 if (err < 0)
122 ✗ return err;
123
124 104 err = ff_cbs_init(&ctx->output, type->codec_id, bsf);
125
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 104 if (err < 0)
126 ✗ return err;
127
128 104 ctx->output->trace_enable = 1;
129 104 ctx->output->trace_level = AV_LOG_TRACE;
130 104 ctx->output->trace_context = ctx->output;
131 104 ctx->output->trace_write_callback = ff_cbs_trace_write_log;
132
133
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 104 if (bsf->par_in->extradata) {
134 88 err = ff_cbs_read_extradata(ctx->input, frag, bsf->par_in);
135
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 88 if (err < 0) {
136 ✗ av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
137 ✗ goto fail;
138 }
139
140 88 err = type->update_fragment(bsf, NULL, frag);
141
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 88 if (err < 0)
142 ✗ goto fail;
143
144 88 err = ff_cbs_write_extradata(ctx->output, bsf->par_out, frag);
145
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 88 if (err < 0) {
146 ✗ av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
147 ✗ goto fail;
148 }
149 }
150
151 104 err = 0;
152 104 fail:
153 104 ff_cbs_fragment_reset(frag);
154 104 return err;
155 }
156
157 104 av_cold void ff_cbs_bsf_generic_close(AVBSFContext *bsf)
158 {
159 104 CBSBSFContext *ctx = bsf->priv_data;
160
161 104 ff_cbs_fragment_free(&ctx->fragment);
162 104 ff_cbs_close(&ctx->input);
163 104 ff_cbs_close(&ctx->output);
164 104 }
165