FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/cbs_bsf.c
Date: 2021-09-24 20:55:06
Exec Total Coverage
Lines: 54 87 62.1%
Branches: 18 36 50.0%

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 5032 static int cbs_bsf_update_side_data(AVBSFContext *bsf, AVPacket *pkt)
24 {
25 5032 CBSBSFContext *ctx = bsf->priv_data;
26 5032 CodedBitstreamFragment *frag = &ctx->fragment;
27 uint8_t *side_data;
28 int err;
29
30
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5032 if (!av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, NULL))
31 5032 return 0;
32
33 err = ff_cbs_read_packet_side_data(ctx->input, frag, pkt);
34 if (err < 0) {
35 av_log(bsf, AV_LOG_ERROR,
36 "Failed to read extradata from packet side data.\n");
37 return err;
38 }
39
40 err = ctx->type->update_fragment(bsf, NULL, frag);
41 if (err < 0)
42 return err;
43
44 err = ff_cbs_write_fragment_data(ctx->output, frag);
45 if (err < 0) {
46 av_log(bsf, AV_LOG_ERROR,
47 "Failed to write extradata into packet side data.\n");
48 return err;
49 }
50
51 side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
52 frag->data_size);
53 if (!side_data)
54 return AVERROR(ENOMEM);
55 memcpy(side_data, frag->data, frag->data_size);
56
57 ff_cbs_fragment_reset(frag);
58 return 0;
59 }
60
61 10063 int ff_cbs_bsf_generic_filter(AVBSFContext *bsf, AVPacket *pkt)
62 {
63 10063 CBSBSFContext *ctx = bsf->priv_data;
64 10063 CodedBitstreamFragment *frag = &ctx->fragment;
65 int err;
66
67 10063 err = ff_bsf_get_packet_ref(bsf, pkt);
68
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10063 if (err < 0)
69 5031 return err;
70
71 5032 err = cbs_bsf_update_side_data(bsf, pkt);
72
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5032 if (err < 0)
73 goto fail;
74
75 5032 err = ff_cbs_read_packet(ctx->input, frag, pkt);
76
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5032 if (err < 0) {
77 1 av_log(bsf, AV_LOG_ERROR, "Failed to read %s from packet.\n",
78 1 ctx->type->fragment_name);
79 1 goto fail;
80 }
81
82
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5031 if (frag->nb_units == 0) {
83 av_log(bsf, AV_LOG_ERROR, "No %s found in packet.\n",
84 ctx->type->unit_name);
85 err = AVERROR_INVALIDDATA;
86 goto fail;
87 }
88
89 5031 err = ctx->type->update_fragment(bsf, pkt, frag);
90
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5031 if (err < 0)
91 goto fail;
92
93 5031 err = ff_cbs_write_packet(ctx->output, pkt, frag);
94
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5031 if (err < 0) {
95 av_log(bsf, AV_LOG_ERROR, "Failed to write %s into packet.\n",
96 ctx->type->fragment_name);
97 goto fail;
98 }
99
100 5031 err = 0;
101 5032 fail:
102 5032 ff_cbs_fragment_reset(frag);
103
104
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5032 if (err < 0)
105 1 av_packet_unref(pkt);
106
107 5032 return err;
108 }
109
110 69 int ff_cbs_bsf_generic_init(AVBSFContext *bsf, const CBSBSFType *type)
111 {
112 69 CBSBSFContext *ctx = bsf->priv_data;
113 69 CodedBitstreamFragment *frag = &ctx->fragment;
114 int err;
115
116 69 ctx->type = type;
117
118 69 err = ff_cbs_init(&ctx->input, type->codec_id, bsf);
119
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69 if (err < 0)
120 return err;
121
122 69 err = ff_cbs_init(&ctx->output, type->codec_id, bsf);
123
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69 if (err < 0)
124 return err;
125
126
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69 if (bsf->par_in->extradata) {
127 55 err = ff_cbs_read_extradata(ctx->input, frag, bsf->par_in);
128
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55 if (err < 0) {
129 av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
130 goto fail;
131 }
132
133 55 err = type->update_fragment(bsf, NULL, frag);
134
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55 if (err < 0)
135 goto fail;
136
137 55 err = ff_cbs_write_extradata(ctx->output, bsf->par_out, frag);
138
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55 if (err < 0) {
139 av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
140 goto fail;
141 }
142 }
143
144 69 err = 0;
145 69 fail:
146 69 ff_cbs_fragment_reset(frag);
147 69 return err;
148 }
149
150 69 void ff_cbs_bsf_generic_close(AVBSFContext *bsf)
151 {
152 69 CBSBSFContext *ctx = bsf->priv_data;
153
154 69 ff_cbs_fragment_free(&ctx->fragment);
155 69 ff_cbs_close(&ctx->input);
156 69 ff_cbs_close(&ctx->output);
157 69 }
158