FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/bsf/prores_metadata.c
Date: 2025-11-10 16:28:23
Exec Total Coverage
Lines: 30 48 62.5%
Functions: 2 2 100.0%
Branches: 12 22 54.5%
Line Branch Exec Source
1 /*
2 * Prores Metadata bitstream filter
3 * Copyright (c) 2018 Jokyo Images
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * Prores Metadata bitstream filter
25 * set frame colorspace property
26 */
27
28 #include "libavutil/common.h"
29 #include "libavutil/intreadwrite.h"
30 #include "libavutil/opt.h"
31
32 #include "bsf.h"
33 #include "bsf_internal.h"
34
35 typedef struct ProresMetadataContext {
36 const AVClass *class;
37
38 int color_primaries;
39 int transfer_characteristics;
40 int matrix_coefficients;
41 } ProresMetadataContext;
42
43 5 static int prores_metadata(AVBSFContext *bsf, AVPacket *pkt)
44 {
45 5 ProresMetadataContext *ctx = bsf->priv_data;
46 5 int ret = 0;
47 int buf_size;
48 uint8_t *buf;
49
50 5 ret = ff_bsf_get_packet_ref(bsf, pkt);
51
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 5 if (ret < 0)
52 3 return ret;
53
54 2 ret = av_packet_make_writable(pkt);
55
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 2 if (ret < 0)
56 ✗ goto fail;
57
58 2 buf = pkt->data;
59 2 buf_size = pkt->size;
60
61 /* check start of the prores frame */
62
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 2 if (buf_size < 28) {
63 ✗ av_log(bsf, AV_LOG_ERROR, "not enough data in prores frame\n");
64 ✗ ret = AVERROR_INVALIDDATA;
65 ✗ goto fail;
66 }
67
68
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 2 if (AV_RL32(buf + 4) != AV_RL32("icpf")) {
69 ✗ av_log(bsf, AV_LOG_ERROR, "invalid frame header\n");
70 ✗ ret = AVERROR_INVALIDDATA;
71 ✗ goto fail;
72 }
73
74
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 2 if (AV_RB16(buf + 8) < 28) {
75 ✗ av_log(bsf, AV_LOG_ERROR, "invalid frame header size\n");
76 ✗ ret = AVERROR_INVALIDDATA;
77 ✗ goto fail;
78 }
79
80 /* set the new values */
81
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 2 if (ctx->color_primaries != -1)
82 2 buf[8+14] = ctx->color_primaries;
83
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 2 if (ctx->transfer_characteristics != -1)
84 2 buf[8+15] = ctx->transfer_characteristics;
85
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 2 if (ctx->matrix_coefficients != -1)
86 2 buf[8+16] = ctx->matrix_coefficients;
87
88 ✗ fail:
89
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 2 if (ret < 0)
90 ✗ av_packet_unref(pkt);
91 2 return ret;
92 }
93
94 static const enum AVCodecID codec_ids[] = {
95 AV_CODEC_ID_PRORES, AV_CODEC_ID_NONE,
96 };
97
98 1 static int prores_metadata_init(AVBSFContext *bsf)
99 {
100 1 ProresMetadataContext *ctx = bsf->priv_data;
101 /*! check options */
102
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 1 switch (ctx->color_primaries) {
103 1 case -1:
104 case 0:
105 case AVCOL_PRI_BT709:
106 case AVCOL_PRI_BT470BG:
107 case AVCOL_PRI_SMPTE170M:
108 case AVCOL_PRI_BT2020:
109 case AVCOL_PRI_SMPTE431:
110 case AVCOL_PRI_SMPTE432:
111 1 break;
112 ✗ default:
113 ✗ av_log(bsf, AV_LOG_ERROR, "Color primaries %d is not a valid value\n", ctx->color_primaries);
114 ✗ return AVERROR(EINVAL);
115 }
116
117
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 1 switch (ctx->matrix_coefficients) {
118 1 case -1:
119 case 0:
120 case AVCOL_SPC_BT709:
121 case AVCOL_SPC_SMPTE170M:
122 case AVCOL_SPC_BT2020_NCL:
123 1 break;
124 ✗ default:
125 ✗ av_log(bsf, AV_LOG_ERROR, "Colorspace %d is not a valid value\n", ctx->matrix_coefficients);
126 ✗ return AVERROR(EINVAL);
127 }
128
129 1 return 0;
130 }
131
132 #define OFFSET(x) offsetof(ProresMetadataContext, x)
133 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_BSF_PARAM)
134 static const AVOption options[] = {
135 {"color_primaries", "select color primaries", OFFSET(color_primaries), AV_OPT_TYPE_INT, {.i64=-1}, -1, AVCOL_PRI_SMPTE432, FLAGS, .unit = "color_primaries"},
136 {"auto", "keep the same color primaries", 0, AV_OPT_TYPE_CONST, {.i64=-1}, INT_MIN, INT_MAX, FLAGS, .unit = "color_primaries"},
137 {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, INT_MIN, INT_MAX, FLAGS, .unit = "color_primaries"},
138 {"bt709", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_BT709}, INT_MIN, INT_MAX, FLAGS, .unit = "color_primaries"},
139 {"bt470bg", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_BT470BG}, INT_MIN, INT_MAX, FLAGS, .unit = "color_primaries"},
140 {"smpte170m", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_SMPTE170M}, INT_MIN, INT_MAX, FLAGS, .unit = "color_primaries"},
141 {"bt2020", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_BT2020}, INT_MIN, INT_MAX, FLAGS, .unit = "color_primaries"},
142 {"smpte431", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_SMPTE431}, INT_MIN, INT_MAX, FLAGS, .unit = "color_primaries"},
143 {"smpte432", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_SMPTE432}, INT_MIN, INT_MAX, FLAGS, .unit = "color_primaries"},
144
145 {"color_trc", "select color transfer", OFFSET(transfer_characteristics), AV_OPT_TYPE_INT, {.i64=-1}, -1, AVCOL_TRC_NB - 1, FLAGS, .unit = "color_trc"},
146 {"auto", "keep the same color transfer", 0, AV_OPT_TYPE_CONST, {.i64=-1}, INT_MIN, INT_MAX, FLAGS, .unit = "color_trc"},
147 {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, INT_MIN, INT_MAX, FLAGS, .unit = "color_trc"},
148 {"bt709", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_TRC_BT709}, INT_MIN, INT_MAX, FLAGS, .unit = "color_trc"},
149 {"smpte2084", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_TRC_SMPTE2084}, INT_MIN, INT_MAX, FLAGS, .unit = "color_trc"},
150 {"arib-std-b67", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_TRC_ARIB_STD_B67}, INT_MIN, INT_MAX, FLAGS, .unit = "color_trc"},
151
152 {"colorspace", "select colorspace", OFFSET(matrix_coefficients), AV_OPT_TYPE_INT, {.i64=-1}, -1, AVCOL_SPC_BT2020_NCL, FLAGS, .unit = "colorspace"},
153 {"auto", "keep the same colorspace", 0, AV_OPT_TYPE_CONST, {.i64=-1}, INT_MIN, INT_MAX, FLAGS, .unit = "colorspace"},
154 {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, INT_MIN, INT_MAX, FLAGS, .unit = "colorspace"},
155 {"bt709", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_SPC_BT709}, INT_MIN, INT_MAX, FLAGS, .unit = "colorspace"},
156 {"smpte170m", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_SPC_SMPTE170M}, INT_MIN, INT_MAX, FLAGS, .unit = "colorspace"},
157 {"bt2020nc", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_SPC_BT2020_NCL}, INT_MIN, INT_MAX, FLAGS, .unit = "colorspace"},
158
159 { NULL },
160 };
161
162 static const AVClass prores_metadata_class = {
163 .class_name = "prores_metadata_bsf",
164 .item_name = av_default_item_name,
165 .option = options,
166 .version = LIBAVUTIL_VERSION_INT,
167 };
168
169 const FFBitStreamFilter ff_prores_metadata_bsf = {
170 .p.name = "prores_metadata",
171 .p.codec_ids = codec_ids,
172 .p.priv_class = &prores_metadata_class,
173 .priv_data_size = sizeof(ProresMetadataContext),
174 .init = prores_metadata_init,
175 .filter = prores_metadata,
176 };
177