#include "libavutil/opt.h"
#include "bsf.h"
+#include "bsf_internal.h"
#include "cbs.h"
#include "cbs_av1.h"
+enum {
+ PASS,
+ INSERT,
+ REMOVE,
+};
+
typedef struct AV1MetadataContext {
const AVClass *class;
CodedBitstreamContext *cbc;
CodedBitstreamFragment access_unit;
+ int td;
+
int color_primaries;
int transfer_characteristics;
int matrix_coefficients;
AVRational tick_rate;
int num_ticks_per_picture;
+
+ int delete_padding;
} AV1MetadataContext;
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;
}
if (ctx->chroma_sample_position >= 0) {
- if (clc->mono_chrome) {
- av_log(bsf, AV_LOG_WARNING, "Warning: chroma_sample_position "
- "is not meaningful for monochrome streams.\n");
- } else if (clc->subsampling_x == 0 &&
- clc->subsampling_y == 0) {
+ if (clc->mono_chrome || !clc->subsampling_x || !clc->subsampling_y) {
av_log(bsf, AV_LOG_WARNING, "Warning: chroma_sample_position "
- "is not meaningful for non-chroma-subsampled streams.\n");
+ "can only be set for 4:2:0 streams.\n");
} else {
clc->chroma_sample_position = ctx->chroma_sample_position;
}
return 0;
}
-static int av1_metadata_filter(AVBSFContext *bsf, AVPacket *out)
+static int av1_metadata_update_side_data(AVBSFContext *bsf, AVPacket *pkt)
{
AV1MetadataContext *ctx = bsf->priv_data;
- AVPacket *in = NULL;
CodedBitstreamFragment *frag = &ctx->access_unit;
- AV1RawOBU *obu;
+ uint8_t *side_data;
+ int side_data_size;
int err, i;
- err = ff_bsf_get_packet(bsf, &in);
+ side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
+ &side_data_size);
+ if (!side_data_size)
+ return 0;
+
+ err = ff_cbs_read(ctx->cbc, frag, side_data, side_data_size);
+ if (err < 0) {
+ av_log(bsf, AV_LOG_ERROR, "Failed to read extradata from packet side data.\n");
+ return err;
+ }
+
+ for (i = 0; i < frag->nb_units; i++) {
+ if (frag->units[i].type == AV1_OBU_SEQUENCE_HEADER) {
+ AV1RawOBU *obu = frag->units[i].content;
+ err = av1_metadata_update_sequence_header(bsf, &obu->obu.sequence_header);
+ if (err < 0)
+ return err;
+ }
+ }
+
+ err = ff_cbs_write_fragment_data(ctx->cbc, frag);
+ if (err < 0) {
+ av_log(bsf, AV_LOG_ERROR, "Failed to write extradata into packet side data.\n");
+ return err;
+ }
+
+ side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, frag->data_size);
+ if (!side_data)
+ return AVERROR(ENOMEM);
+ memcpy(side_data, frag->data, frag->data_size);
+
+ ff_cbs_fragment_reset(ctx->cbc, frag);
+
+ return 0;
+}
+
+static int av1_metadata_filter(AVBSFContext *bsf, AVPacket *pkt)
+{
+ 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, in);
+ err = av1_metadata_update_side_data(bsf, pkt);
+ if (err < 0)
+ goto fail;
+
+ 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;
}
+ if (frag->nb_units == 0) {
+ av_log(bsf, AV_LOG_ERROR, "No OBU in packet.\n");
+ err = AVERROR_INVALIDDATA;
+ 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 = ff_cbs_write_packet(ctx->cbc, out, frag);
+ // 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 (err < 0) {
+ av_log(bsf, AV_LOG_ERROR, "Failed to insert Temporal Delimiter.\n");
+ goto fail;
+ }
+ }
+
+ if (ctx->delete_padding) {
+ for (i = frag->nb_units - 1; i >= 0; i--) {
+ if (frag->units[i].type == AV1_OBU_PADDING)
+ ff_cbs_delete_unit(ctx->cbc, 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 = av_packet_copy_props(out, in);
- if (err < 0)
- goto fail;
-
err = 0;
fail:
- ff_cbs_fragment_uninit(ctx->cbc, frag);
+ ff_cbs_fragment_reset(ctx->cbc, frag);
if (err < 0)
- av_packet_unref(out);
- av_packet_free(&in);
+ av_packet_unref(pkt);
return err;
}
err = 0;
fail:
- ff_cbs_fragment_uninit(ctx->cbc, frag);
+ ff_cbs_fragment_reset(ctx->cbc, frag);
return err;
}
static void av1_metadata_close(AVBSFContext *bsf)
{
AV1MetadataContext *ctx = bsf->priv_data;
+
+ ff_cbs_fragment_free(ctx->cbc, &ctx->access_unit);
ff_cbs_close(&ctx->cbc);
}
#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" },
+
{ "color_primaries", "Set color primaries (section 6.4.2)",
OFFSET(color_primaries), AV_OPT_TYPE_INT,
{ .i64 = -1 }, -1, 255, FLAGS },
OFFSET(num_ticks_per_picture), AV_OPT_TYPE_INT,
{ .i64 = -1 }, -1, INT_MAX, FLAGS },
+ { "delete_padding", "Delete all Padding OBUs",
+ OFFSET(delete_padding), AV_OPT_TYPE_BOOL,
+ { .i64 = 0 }, 0, 1, FLAGS},
+
{ NULL }
};
projects / ffmpeg / blobdiff