#include "cbs.h"
#include "cbs_h265.h"
#include "hevc.h"
+#include "h265_profile_level.h"
enum {
PASS,
REMOVE,
};
+enum {
+ LEVEL_UNSET = -2,
+ LEVEL_AUTO = -1,
+};
+
typedef struct H265MetadataContext {
const AVClass *class;
int crop_right;
int crop_top;
int crop_bottom;
+
+ int level;
+ int level_guess;
+ int level_warned;
} H265MetadataContext;
+static void h265_metadata_guess_level(AVBSFContext *bsf,
+ const CodedBitstreamFragment *au)
+{
+ H265MetadataContext *ctx = bsf->priv_data;
+ const H265LevelDescriptor *desc;
+ const H265RawProfileTierLevel *ptl = NULL;
+ const H265RawHRDParameters *hrd = NULL;
+ int64_t bit_rate = 0;
+ int width = 0, height = 0;
+ int tile_cols = 0, tile_rows = 0;
+ int max_dec_pic_buffering = 0;
+ int i;
+
+ for (i = 0; i < au->nb_units; i++) {
+ const CodedBitstreamUnit *unit = &au->units[i];
+
+ if (unit->type == HEVC_NAL_VPS) {
+ const H265RawVPS *vps = unit->content;
+
+ ptl = &vps->profile_tier_level;
+ max_dec_pic_buffering = vps->vps_max_dec_pic_buffering_minus1[0] + 1;
+
+ if (vps->vps_num_hrd_parameters > 0)
+ hrd = &vps->hrd_parameters[0];
+
+ } else if (unit->type == HEVC_NAL_SPS) {
+ const H265RawSPS *sps = unit->content;
+
+ ptl = &sps->profile_tier_level;
+ max_dec_pic_buffering = sps->sps_max_dec_pic_buffering_minus1[0] + 1;
+
+ width = sps->pic_width_in_luma_samples;
+ height = sps->pic_height_in_luma_samples;
+
+ if (sps->vui.vui_hrd_parameters_present_flag)
+ hrd = &sps->vui.hrd_parameters;
+
+ } else if (unit->type == HEVC_NAL_PPS) {
+ const H265RawPPS *pps = unit->content;
+
+ if (pps->tiles_enabled_flag) {
+ tile_cols = pps->num_tile_columns_minus1 + 1;
+ tile_rows = pps->num_tile_rows_minus1 + 1;
+ }
+ }
+ }
+
+ if (hrd) {
+ if (hrd->nal_hrd_parameters_present_flag) {
+ bit_rate = (hrd->nal_sub_layer_hrd_parameters[0].bit_rate_value_minus1[0] + 1) *
+ (INT64_C(1) << hrd->bit_rate_scale + 6);
+ } else if (hrd->vcl_hrd_parameters_present_flag) {
+ bit_rate = (hrd->vcl_sub_layer_hrd_parameters[0].bit_rate_value_minus1[0] + 1) *
+ (INT64_C(1) << hrd->bit_rate_scale + 6);
+ // Adjust for VCL vs. NAL limits.
+ bit_rate = bit_rate * 11 / 10;
+ }
+ }
+
+ desc = ff_h265_guess_level(ptl, bit_rate, width, height,
+ 0, tile_cols, tile_rows,
+ max_dec_pic_buffering);
+ if (desc) {
+ av_log(bsf, AV_LOG_DEBUG, "Stream appears to conform to "
+ "level %s.\n", desc->name);
+ ctx->level_guess = desc->level_idc;
+ }
+}
+
+static void h265_metadata_update_level(AVBSFContext *bsf,
+ uint8_t *level_idc)
+{
+ H265MetadataContext *ctx = bsf->priv_data;
+
+ if (ctx->level != LEVEL_UNSET) {
+ if (ctx->level == LEVEL_AUTO) {
+ if (ctx->level_guess) {
+ *level_idc = ctx->level_guess;
+ } else {
+ if (!ctx->level_warned) {
+ av_log(bsf, AV_LOG_WARNING, "Unable to determine level "
+ "of stream: using level 8.5.\n");
+ ctx->level_warned = 1;
+ }
+ *level_idc = 255;
+ }
+ } else {
+ *level_idc = ctx->level;
+ }
+ }
+}
+
static int h265_metadata_update_vps(AVBSFContext *bsf,
H265RawVPS *vps)
{
}
}
+ h265_metadata_update_level(bsf, &vps->profile_tier_level.general_level_idc);
+
return 0;
}
if (need_vui)
sps->vui_parameters_present_flag = 1;
+ h265_metadata_update_level(bsf, &sps->profile_tier_level.general_level_idc);
+
return 0;
}
-static int h265_metadata_filter(AVBSFContext *bsf, AVPacket *out)
+static int h265_metadata_filter(AVBSFContext *bsf, AVPacket *pkt)
{
H265MetadataContext *ctx = bsf->priv_data;
- AVPacket *in = NULL;
CodedBitstreamFragment *au = &ctx->access_unit;
int err, i;
- err = ff_bsf_get_packet(bsf, &in);
+ err = ff_bsf_get_packet_ref(bsf, pkt);
if (err < 0)
return err;
- err = ff_cbs_read_packet(ctx->cbc, au, in);
+ err = ff_cbs_read_packet(ctx->cbc, au, pkt);
if (err < 0) {
av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n");
goto fail;
err = ff_cbs_insert_unit_content(ctx->cbc, au,
0, HEVC_NAL_AUD, aud, NULL);
- if (err) {
+ if (err < 0) {
av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n");
goto fail;
}
}
}
+ if (ctx->level == LEVEL_AUTO && !ctx->level_guess)
+ h265_metadata_guess_level(bsf, au);
+
for (i = 0; i < au->nb_units; i++) {
if (au->units[i].type == HEVC_NAL_VPS) {
err = h265_metadata_update_vps(bsf, au->units[i].content);
}
}
- err = ff_cbs_write_packet(ctx->cbc, out, au);
+ err = ff_cbs_write_packet(ctx->cbc, pkt, au);
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, au);
+ ff_cbs_fragment_reset(ctx->cbc, au);
if (err < 0)
- av_packet_unref(out);
- av_packet_free(&in);
+ av_packet_unref(pkt);
return err;
}
goto fail;
}
+ if (ctx->level == LEVEL_AUTO)
+ h265_metadata_guess_level(bsf, au);
+
for (i = 0; i < au->nb_units; i++) {
if (au->units[i].type == HEVC_NAL_VPS) {
err = h265_metadata_update_vps(bsf, au->units[i].content);
err = 0;
fail:
- ff_cbs_fragment_uninit(ctx->cbc, au);
+ ff_cbs_fragment_reset(ctx->cbc, au);
return err;
}
static void h265_metadata_close(AVBSFContext *bsf)
{
H265MetadataContext *ctx = bsf->priv_data;
+
+ ff_cbs_fragment_free(ctx->cbc, &ctx->access_unit);
ff_cbs_close(&ctx->cbc);
}
OFFSET(crop_bottom), AV_OPT_TYPE_INT,
{ .i64 = -1 }, -1, HEVC_MAX_HEIGHT, FLAGS },
+ { "level", "Set level (tables A.6 and A.7)",
+ OFFSET(level), AV_OPT_TYPE_INT,
+ { .i64 = LEVEL_UNSET }, LEVEL_UNSET, 0xff, FLAGS, "level" },
+ { "auto", "Attempt to guess level from stream properties",
+ 0, AV_OPT_TYPE_CONST,
+ { .i64 = LEVEL_AUTO }, .flags = FLAGS, .unit = "level" },
+#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
+ { .i64 = value }, .flags = FLAGS, .unit = "level"
+ { LEVEL("1", 30) },
+ { LEVEL("2", 60) },
+ { LEVEL("2.1", 63) },
+ { LEVEL("3", 90) },
+ { LEVEL("3.1", 93) },
+ { LEVEL("4", 120) },
+ { LEVEL("4.1", 123) },
+ { LEVEL("5", 150) },
+ { LEVEL("5.1", 153) },
+ { LEVEL("5.2", 156) },
+ { LEVEL("6", 180) },
+ { LEVEL("6.1", 183) },
+ { LEVEL("6.2", 186) },
+ { LEVEL("8.5", 255) },
+#undef LEVEL
+
{ NULL }
};
projects / ffmpeg / blobdiff