#include "bsf.h"
#include "cbs.h"
+#include "cbs_bsf.h"
#include "cbs_av1.h"
-enum {
- PASS,
- INSERT,
- REMOVE,
-};
-
typedef struct AV1MetadataContext {
- const AVClass *class;
-
- CodedBitstreamContext *cbc;
- CodedBitstreamFragment access_unit;
+ CBSBSFContext common;
int td;
+ AV1RawOBU td_obu;
int color_primaries;
int transfer_characteristics;
if (ctx->color_primaries >= 0 ||
ctx->transfer_characteristics >= 0 ||
ctx->matrix_coefficients >= 0) {
- if (!clc->color_description_present_flag) {
- clc->color_description_present_flag = 1;
- clc->color_primaries = AVCOL_PRI_UNSPECIFIED;
- clc->transfer_characteristics = AVCOL_TRC_UNSPECIFIED;
- clc->matrix_coefficients = AVCOL_SPC_UNSPECIFIED;
- }
+ clc->color_description_present_flag = 1;
if (ctx->color_primaries >= 0)
clc->color_primaries = ctx->color_primaries;
return 0;
}
-static int av1_metadata_filter(AVBSFContext *bsf, AVPacket *pkt)
+static int av1_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt,
+ CodedBitstreamFragment *frag)
{
AV1MetadataContext *ctx = bsf->priv_data;
- CodedBitstreamFragment *frag = &ctx->access_unit;
- AV1RawOBU td, *obu;
int err, i;
- err = ff_bsf_get_packet_ref(bsf, pkt);
- if (err < 0)
- return err;
-
- err = ff_cbs_read_packet(ctx->cbc, frag, pkt);
- if (err < 0) {
- av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
- goto fail;
- }
-
for (i = 0; i < frag->nb_units; i++) {
if (frag->units[i].type == AV1_OBU_SEQUENCE_HEADER) {
- obu = frag->units[i].content;
+ AV1RawOBU *obu = frag->units[i].content;
err = av1_metadata_update_sequence_header(bsf, &obu->obu.sequence_header);
if (err < 0)
- goto fail;
+ return err;
}
}
// If a Temporal Delimiter is present, it must be the first OBU.
- if (frag->units[0].type == AV1_OBU_TEMPORAL_DELIMITER) {
- if (ctx->td == REMOVE)
- ff_cbs_delete_unit(ctx->cbc, frag, 0);
- } else if (ctx->td == INSERT) {
- td = (AV1RawOBU) {
- .header.obu_type = AV1_OBU_TEMPORAL_DELIMITER,
- };
-
- err = ff_cbs_insert_unit_content(ctx->cbc, frag, 0, AV1_OBU_TEMPORAL_DELIMITER,
- &td, NULL);
+ if (frag->nb_units && frag->units[0].type == AV1_OBU_TEMPORAL_DELIMITER) {
+ if (ctx->td == BSF_ELEMENT_REMOVE)
+ ff_cbs_delete_unit(frag, 0);
+ } else if (pkt && ctx->td == BSF_ELEMENT_INSERT) {
+ err = ff_cbs_insert_unit_content(frag, 0, AV1_OBU_TEMPORAL_DELIMITER,
+ &ctx->td_obu, NULL);
if (err < 0) {
av_log(bsf, AV_LOG_ERROR, "Failed to insert Temporal Delimiter.\n");
- goto fail;
+ return err;
}
}
if (ctx->delete_padding) {
for (i = frag->nb_units - 1; i >= 0; i--) {
- if (frag->units[i].type == AV1_OBU_PADDING) {
- err = ff_cbs_delete_unit(ctx->cbc, frag, i);
- if (err < 0) {
- av_log(bsf, AV_LOG_ERROR, "Failed to delete Padding OBU.\n");
- goto fail;
- }
- }
+ if (frag->units[i].type == AV1_OBU_PADDING)
+ ff_cbs_delete_unit(frag, i);
}
}
- err = ff_cbs_write_packet(ctx->cbc, pkt, frag);
- if (err < 0) {
- av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n");
- goto fail;
- }
-
- err = 0;
-fail:
- ff_cbs_fragment_reset(ctx->cbc, frag);
-
- if (err < 0)
- av_packet_unref(pkt);
-
- return err;
+ return 0;
}
+static const CBSBSFType av1_metadata_type = {
+ .codec_id = AV_CODEC_ID_AV1,
+ .fragment_name = "temporal unit",
+ .unit_name = "OBU",
+ .update_fragment = &av1_metadata_update_fragment,
+};
+
static int av1_metadata_init(AVBSFContext *bsf)
{
AV1MetadataContext *ctx = bsf->priv_data;
- CodedBitstreamFragment *frag = &ctx->access_unit;
- AV1RawOBU *obu;
- int err, i;
- err = ff_cbs_init(&ctx->cbc, AV_CODEC_ID_AV1, bsf);
- if (err < 0)
- return err;
-
- if (bsf->par_in->extradata) {
- err = ff_cbs_read_extradata(ctx->cbc, frag, bsf->par_in);
- if (err < 0) {
- av_log(bsf, AV_LOG_ERROR, "Failed to read extradata.\n");
- goto fail;
- }
-
- for (i = 0; i < frag->nb_units; i++) {
- if (frag->units[i].type == AV1_OBU_SEQUENCE_HEADER) {
- obu = frag->units[i].content;
- err = av1_metadata_update_sequence_header(bsf, &obu->obu.sequence_header);
- if (err < 0)
- goto fail;
- }
- }
-
- err = ff_cbs_write_extradata(ctx->cbc, bsf->par_out, frag);
- if (err < 0) {
- av_log(bsf, AV_LOG_ERROR, "Failed to write extradata.\n");
- goto fail;
- }
- }
-
- err = 0;
-fail:
- ff_cbs_fragment_reset(ctx->cbc, frag);
- return err;
-}
-
-static void av1_metadata_close(AVBSFContext *bsf)
-{
- AV1MetadataContext *ctx = bsf->priv_data;
+ ctx->td_obu = (AV1RawOBU) {
+ .header.obu_type = AV1_OBU_TEMPORAL_DELIMITER,
+ };
- ff_cbs_fragment_free(ctx->cbc, &ctx->access_unit);
- ff_cbs_close(&ctx->cbc);
+ return ff_cbs_bsf_generic_init(bsf, &av1_metadata_type);
}
#define OFFSET(x) offsetof(AV1MetadataContext, x)
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
static const AVOption av1_metadata_options[] = {
- { "td", "Temporal Delimiter OBU",
- OFFSET(td), AV_OPT_TYPE_INT,
- { .i64 = PASS }, PASS, REMOVE, FLAGS, "td" },
- { "pass", NULL, 0, AV_OPT_TYPE_CONST,
- { .i64 = PASS }, .flags = FLAGS, .unit = "td" },
- { "insert", NULL, 0, AV_OPT_TYPE_CONST,
- { .i64 = INSERT }, .flags = FLAGS, .unit = "td" },
- { "remove", NULL, 0, AV_OPT_TYPE_CONST,
- { .i64 = REMOVE }, .flags = FLAGS, .unit = "td" },
+ BSF_ELEMENT_OPTIONS_PIR("td", "Temporal Delimiter OBU",
+ td, FLAGS),
{ "color_primaries", "Set color primaries (section 6.4.2)",
OFFSET(color_primaries), AV_OPT_TYPE_INT,
.priv_data_size = sizeof(AV1MetadataContext),
.priv_class = &av1_metadata_class,
.init = &av1_metadata_init,
- .close = &av1_metadata_close,
- .filter = &av1_metadata_filter,
+ .close = &ff_cbs_bsf_generic_close,
+ .filter = &ff_cbs_bsf_generic_filter,
.codec_ids = av1_metadata_codec_ids,
};
projects / ffmpeg / blobdiff