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| | 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/common.h" |
| | 20 | #include "libavutil/opt.h" |
| | 21 | |
| | 22 | #include "bsf.h" |
| | 23 | #include "bsf_internal.h" |
| | 24 | #include "cbs.h" |
| | 25 | #include "cbs_bsf.h" |
| | 26 | #include "cbs_apv.h" |
| | 27 | |
| | 28 | typedef struct APVMetadataContext { |
| | 29 | CBSBSFContext common; |
| | 30 | |
| | 31 | int color_primaries; |
| | 32 | int transfer_characteristics; |
| | 33 | int matrix_coefficients; |
| | 34 | int full_range_flag; |
| | 35 | } APVMetadataContext; |
| | 36 | |
| | 37 | |
| | 38 | static int apv_metadata_update_frame_header(AVBSFContext *bsf, |
| | 39 | APVRawFrameHeader *hdr) |
| | 40 | { |
| | 41 | APVMetadataContext *ctx = bsf->priv_data; |
| | 42 | |
| | 43 | if (ctx->color_primaries >= 0 || |
| | 44 | ctx->transfer_characteristics >= 0 || |
| | 45 | ctx->matrix_coefficients >= 0 || |
| | 46 | ctx->full_range_flag >= 0) { |
| | 47 | hdr->color_description_present_flag = 1; |
| | 48 | |
| | 49 | if (ctx->color_primaries >= 0) |
| | 50 | hdr->color_primaries = ctx->color_primaries; |
| | 51 | if (ctx->transfer_characteristics >= 0) |
| | 52 | hdr->transfer_characteristics = ctx->transfer_characteristics; |
| | 53 | if (ctx->matrix_coefficients >= 0) |
| | 54 | hdr->matrix_coefficients = ctx->matrix_coefficients; |
| | 55 | if (ctx->full_range_flag >= 0) |
| | 56 | hdr->full_range_flag = ctx->full_range_flag; |
| | 57 | } |
| | 58 | |
| | 59 | return 0; |
| | 60 | } |
| | 61 | |
| | 62 | static int apv_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt, |
| | 63 | CodedBitstreamFragment *frag) |
| | 64 | { |
| | 65 | int err, i; |
| | 66 | |
| | 67 | for (i = 0; i < frag->nb_units; i++) { |
| | 68 | if (frag->units[i].type == APV_PBU_PRIMARY_FRAME) { |
| | 69 | APVRawFrame *pbu = frag->units[i].content; |
| | 70 | err = apv_metadata_update_frame_header(bsf, &pbu->frame_header); |
| | 71 | if (err < 0) |
| | 72 | return err; |
| | 73 | } |
| | 74 | } |
| | 75 | |
| | 76 | return 0; |
| | 77 | } |
| | 78 | |
| | 79 | static const CBSBSFType apv_metadata_type = { |
| | 80 | .codec_id = AV_CODEC_ID_APV, |
| | 81 | .fragment_name = "access unit", |
| | 82 | .unit_name = "PBU", |
| | 83 | .update_fragment = &apv_metadata_update_fragment, |
| | 84 | }; |
| | 85 | |
| | 86 | static int apv_metadata_init(AVBSFContext *bsf) |
| | 87 | { |
| | 88 | return ff_cbs_bsf_generic_init(bsf, &apv_metadata_type); |
| | 89 | } |
| | 90 | |
| | 91 | #define OFFSET(x) offsetof(APVMetadataContext, x) |
| | 92 | #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM) |
| | 93 | static const AVOption apv_metadata_options[] = { |
| | 94 | { "color_primaries", "Set color primaries (section 5.3.5)", |
| | 95 | OFFSET(color_primaries), AV_OPT_TYPE_INT, |
| | 96 | { .i64 = -1 }, -1, 255, FLAGS }, |
| | 97 | { "transfer_characteristics", "Set transfer characteristics (section 5.3.5)", |
| | 98 | OFFSET(transfer_characteristics), AV_OPT_TYPE_INT, |
| | 99 | { .i64 = -1 }, -1, 255, FLAGS }, |
| | 100 | { "matrix_coefficients", "Set matrix coefficients (section 5.3.5)", |
| | 101 | OFFSET(matrix_coefficients), AV_OPT_TYPE_INT, |
| | 102 | { .i64 = -1 }, -1, 255, FLAGS }, |
| | 103 | |
| | 104 | { "full_range_flag", "Set full range flag flag (section 5.3.5)", |
| | 105 | OFFSET(full_range_flag), AV_OPT_TYPE_INT, |
| | 106 | { .i64 = -1 }, -1, 1, FLAGS, .unit = "cr" }, |
| | 107 | { "tv", "TV (limited) range", 0, AV_OPT_TYPE_CONST, |
| | 108 | { .i64 = 0 }, .flags = FLAGS, .unit = "cr" }, |
| | 109 | { "pc", "PC (full) range", 0, AV_OPT_TYPE_CONST, |
| | 110 | { .i64 = 1 }, .flags = FLAGS, .unit = "cr" }, |
| | 111 | |
| | 112 | { NULL } |
| | 113 | }; |
| | 114 | |
| | 115 | static const AVClass apv_metadata_class = { |
| | 116 | .class_name = "apv_metadata_bsf", |
| | 117 | .item_name = av_default_item_name, |
| | 118 | .option = apv_metadata_options, |
| | 119 | .version = LIBAVUTIL_VERSION_INT, |
| | 120 | }; |
| | 121 | |
| | 122 | static const enum AVCodecID apv_metadata_codec_ids[] = { |
| | 123 | AV_CODEC_ID_APV, AV_CODEC_ID_NONE, |
| | 124 | }; |
| | 125 | |
| | 126 | const FFBitStreamFilter ff_apv_metadata_bsf = { |
| | 127 | .p.name = "apv_metadata", |
| | 128 | .p.codec_ids = apv_metadata_codec_ids, |
| | 129 | .p.priv_class = &apv_metadata_class, |
| | 130 | .priv_data_size = sizeof(APVMetadataContext), |
| | 131 | .init = &apv_metadata_init, |
| | 132 | .close = &ff_cbs_bsf_generic_close, |
| | 133 | .filter = &ff_cbs_bsf_generic_filter, |
| | 134 | }; |