2 * This file is part of FFmpeg.
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.
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.
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
19 #include "libavutil/avstring.h"
20 #include "libavutil/common.h"
21 #include "libavutil/opt.h"
27 typedef struct VP9MetadataContext {
30 CodedBitstreamContext *cbc;
31 CodedBitstreamFragment fragment;
36 int color_range_rgb_warned;
40 static int vp9_metadata_filter(AVBSFContext *bsf, AVPacket *out)
42 VP9MetadataContext *ctx = bsf->priv_data;
44 CodedBitstreamFragment *frag = &ctx->fragment;
47 err = ff_bsf_get_packet(bsf, &in);
51 err = ff_cbs_read_packet(ctx->cbc, frag, in);
53 av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
57 for (i = 0; i < frag->nb_units; i++) {
58 VP9RawFrame *frame = frag->units[i].content;
59 VP9RawFrameHeader *header = &frame->header;
61 if (ctx->color_space >= 0) {
62 header->color_space = ctx->color_space;
64 if (ctx->color_range >= 0) {
65 if (ctx->color_range == 0 &&
66 header->color_space == VP9_CS_RGB &&
67 !ctx->color_range_rgb_warned) {
68 av_log(bsf, AV_LOG_WARNING, "Warning: color_range cannot "
69 "be set to limited in RGB streams.\n");
70 ctx->color_range_rgb_warned = 1;
72 header->color_range = ctx->color_range;
77 err = ff_cbs_write_packet(ctx->cbc, out, frag);
79 av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n");
83 err = av_packet_copy_props(out, in);
89 ff_cbs_fragment_uninit(ctx->cbc, frag);
98 static int vp9_metadata_init(AVBSFContext *bsf)
100 VP9MetadataContext *ctx = bsf->priv_data;
102 return ff_cbs_init(&ctx->cbc, AV_CODEC_ID_VP9, bsf);
105 static void vp9_metadata_close(AVBSFContext *bsf)
107 VP9MetadataContext *ctx = bsf->priv_data;
108 ff_cbs_close(&ctx->cbc);
111 #define OFFSET(x) offsetof(VP9MetadataContext, x)
112 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
113 static const AVOption vp9_metadata_options[] = {
114 { "color_space", "Set colour space (section 7.2.2)",
115 OFFSET(color_space), AV_OPT_TYPE_INT,
116 { .i64 = -1 }, -1, VP9_CS_RGB, FLAGS, "cs" },
117 { "unknown", "Unknown/unspecified", 0, AV_OPT_TYPE_CONST,
118 { .i64 = VP9_CS_UNKNOWN }, .flags = FLAGS, .unit = "cs" },
119 { "bt601", "ITU-R BT.601-7", 0, AV_OPT_TYPE_CONST,
120 { .i64 = VP9_CS_BT_601 }, .flags = FLAGS, .unit = "cs" },
121 { "bt709", "ITU-R BT.709-6", 0, AV_OPT_TYPE_CONST,
122 { .i64 = VP9_CS_BT_709 }, .flags = FLAGS, .unit = "cs" },
123 { "smpte170", "SMPTE-170", 0, AV_OPT_TYPE_CONST,
124 { .i64 = VP9_CS_SMPTE_170 }, .flags = FLAGS, .unit = "cs" },
125 { "smpte240", "SMPTE-240", 0, AV_OPT_TYPE_CONST,
126 { .i64 = VP9_CS_SMPTE_240 }, .flags = FLAGS, .unit = "cs" },
127 { "bt2020", "ITU-R BT.2020-2", 0, AV_OPT_TYPE_CONST,
128 { .i64 = VP9_CS_BT_2020 }, .flags = FLAGS, .unit = "cs" },
129 { "rgb", "sRGB / IEC 61966-2-1", 0, AV_OPT_TYPE_CONST,
130 { .i64 = VP9_CS_RGB }, .flags = FLAGS, .unit = "cs" },
132 { "color_range", "Set colour range (section 7.2.2)",
133 OFFSET(color_range), AV_OPT_TYPE_INT,
134 { .i64 = -1 }, -1, 1, FLAGS, "cr" },
135 { "tv", "TV (limited) range", 0, AV_OPT_TYPE_CONST,
136 { .i64 = 0 }, .flags = FLAGS, .unit = "cr" },
137 { "pc", "PC (full) range", 0, AV_OPT_TYPE_CONST,
138 { .i64 = 1 }, .flags = FLAGS, .unit = "cr" },
143 static const AVClass vp9_metadata_class = {
144 .class_name = "vp9_metadata_bsf",
145 .item_name = av_default_item_name,
146 .option = vp9_metadata_options,
147 .version = LIBAVUTIL_VERSION_INT,
150 static const enum AVCodecID vp9_metadata_codec_ids[] = {
151 AV_CODEC_ID_VP9, AV_CODEC_ID_NONE,
154 const AVBitStreamFilter ff_vp9_metadata_bsf = {
155 .name = "vp9_metadata",
156 .priv_data_size = sizeof(VP9MetadataContext),
157 .priv_class = &vp9_metadata_class,
158 .init = &vp9_metadata_init,
159 .close = &vp9_metadata_close,
160 .filter = &vp9_metadata_filter,
161 .codec_ids = vp9_metadata_codec_ids,