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bsf/av1_metadata: add remove_dovi and remove_hdr10plus

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This commit is contained in:
gnattu 2024-10-16 19:08:08 +08:00
parent 15dd01d2d4
commit 547d233809
1 changed files with 100 additions and 0 deletions
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100
debian/patches/0077-add-remove-dovi-hdr10plus-bsf.patch vendored
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@ -83,3 +83,103 @@ Index: FFmpeg/libavcodec/bsf/h265_metadata.c
{ NULL }
};
Index: FFmpeg/libavcodec/bsf/av1_metadata.c
===================================================================
--- FFmpeg.orig/libavcodec/bsf/av1_metadata.c
+++ FFmpeg/libavcodec/bsf/av1_metadata.c
@@ -17,6 +17,7 @@
*/
#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "bsf.h"
@@ -24,6 +25,7 @@
#include "cbs.h"
#include "cbs_bsf.h"
#include "cbs_av1.h"
+#include "itut35.h"
typedef struct AV1MetadataContext {
CBSBSFContext common;
@@ -42,6 +44,9 @@ typedef struct AV1MetadataContext {
int num_ticks_per_picture;
int delete_padding;
+
+ int remove_dovi;
+ int remove_hdr10plus;
} AV1MetadataContext;
@@ -140,6 +145,42 @@ static int av1_metadata_update_fragment(
}
}
+ if (ctx->remove_dovi ||ctx->remove_hdr10plus) {
+ int provider_code, provider_oriented_code, application_identifier;
+ for (i = frag->nb_units - 1; i >= 0; i--) {
+ if (frag->units[i].type == AV1_OBU_METADATA) {
+ AV1RawOBU *obu = frag->units[i].content;
+ AV1RawMetadataITUTT35 *t35 = &obu->obu.metadata.metadata.itut_t35;
+ if (obu->obu.metadata.metadata_type != AV1_METADATA_TYPE_ITUT_T35 ||
+ t35->itu_t_t35_country_code != ITU_T_T35_COUNTRY_CODE_US ||
+ t35->payload_size < 6) {
+ continue;
+ }
+
+ provider_code = AV_RB16(t35->payload);
+
+ if (ctx->remove_dovi && provider_code == ITU_T_T35_PROVIDER_CODE_DOLBY) {
+ provider_oriented_code = AV_RB32(t35->payload + 2);
+ // Dolby Vision RPU
+ if (provider_oriented_code == 0x800) {
+ av_log(bsf, AV_LOG_DEBUG, "Removing Dolby Vision RPU\n");
+ ff_cbs_delete_unit(frag, i);
+ }
+ }
+
+ if (ctx->remove_hdr10plus && provider_code == ITU_T_T35_PROVIDER_CODE_SMTPE) {
+ provider_oriented_code = AV_RB16(t35->payload + 2);
+ application_identifier = AV_RB8(t35->payload + 4);
+ // HDR10+ Metadata
+ if (provider_oriented_code == 0x01 && application_identifier == 0x04) {
+ av_log(bsf, AV_LOG_DEBUG, "Removing HDR10+ Metadata\n");
+ ff_cbs_delete_unit(frag, i);
+ }
+ }
+ }
+ }
+ }
+
return 0;
}
@@ -158,6 +199,12 @@ static int av1_metadata_init(AVBSFContex
.header.obu_type = AV1_OBU_TEMPORAL_DELIMITER,
};
+ if (ctx->remove_dovi) {
+ av_packet_side_data_remove(bsf->par_out->coded_side_data,
+ &bsf->par_out->nb_coded_side_data,
+ AV_PKT_DATA_DOVI_CONF);
+ }
+
return ff_cbs_bsf_generic_init(bsf, &av1_metadata_type);
}
@@ -206,6 +253,13 @@ static const AVOption av1_metadata_optio
OFFSET(delete_padding), AV_OPT_TYPE_BOOL,
{ .i64 = 0 }, 0, 1, FLAGS},
+ { "remove_dovi", "Remove Dolby Vision RPU",
+ OFFSET(remove_dovi), AV_OPT_TYPE_BOOL,
+ { .i64 = 0 }, 0, 1, FLAGS },
+ { "remove_hdr10plus", "Remove HDR10+ metadata",
+ OFFSET(remove_hdr10plus), AV_OPT_TYPE_BOOL,
+ { .i64 = 0 }, 0, 1, FLAGS },
+
{ NULL }
};