[FFmpeg-devel] [PATCH] Add advance vps/sps/pps id to hevc_metadata bsf

Andreas Rheinhardt andreas.rheinhardt at gmail.com
Wed Jan 8 15:31:41 EET 2020


On Wed, Jan 8, 2020 at 2:18 PM Eran Gonen <eran.gonen at cloudinary.com> wrote:

> ---
>  libavcodec/h265_metadata_bsf.c | 117 +++++++++++++++++++++++++++++++--
>  1 file changed, 111 insertions(+), 6 deletions(-)
>
> diff --git a/libavcodec/h265_metadata_bsf.c
> b/libavcodec/h265_metadata_bsf.c
> index b3a1fda144..796046ac7f 100644
> --- a/libavcodec/h265_metadata_bsf.c
> +++ b/libavcodec/h265_metadata_bsf.c
> @@ -68,6 +68,10 @@ typedef struct H265MetadataContext {
>      int level;
>      int level_guess;
>      int level_warned;
> +
> +    int advance_vps_id;
> +    int advance_sps_id;
> +    int advance_pps_id;
>  } H265MetadataContext;
>
>
> @@ -168,6 +172,10 @@ static int h265_metadata_update_vps(AVBSFContext *bsf,
>  {
>      H265MetadataContext *ctx = bsf->priv_data;
>
> +    if(ctx->advance_vps_id > -1) {
> +        vps->vps_video_parameter_set_id =
> (vps->vps_video_parameter_set_id + ctx->advance_vps_id) %
> HEVC_MAX_VPS_COUNT;
> +    }
> +
>      if (ctx->tick_rate.num && ctx->tick_rate.den) {
>          int num, den;
>
> @@ -200,6 +208,13 @@ static int h265_metadata_update_sps(AVBSFContext *bsf,
>      int need_vui = 0;
>      int crop_unit_x, crop_unit_y;
>
> +    if(ctx->advance_vps_id > -1) {
> +        sps->sps_video_parameter_set_id =
> (sps->sps_video_parameter_set_id + ctx->advance_vps_id) %
> HEVC_MAX_VPS_COUNT;
> +    }
> +    if(ctx->advance_sps_id > -1) {
> +        sps->sps_seq_parameter_set_id = (sps->sps_seq_parameter_set_id +
> ctx->advance_sps_id) % HEVC_MAX_SPS_COUNT;
> +    }
> +
>      if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) {
>          // Table E-1.
>          static const AVRational sar_idc[] = {
> @@ -336,6 +351,32 @@ static int h265_metadata_update_sps(AVBSFContext *bsf,
>      return 0;
>  }
>
> +static int h265_metadata_update_pps(AVBSFContext *bsf,
> +                                    H265RawPPS *pps)
> +{
> +    H265MetadataContext *ctx = bsf->priv_data;
> +
> +    if(ctx->advance_sps_id > -1) {
> +        pps->pps_seq_parameter_set_id = (pps->pps_seq_parameter_set_id +
> ctx->advance_sps_id) % HEVC_MAX_SPS_COUNT;
> +    }
> +    if(ctx->advance_pps_id > -1) {
> +        pps->pps_pic_parameter_set_id = (pps->pps_pic_parameter_set_id +
> ctx->advance_pps_id) % HEVC_MAX_PPS_COUNT;
> +    }
> +
> +    return 0;
> +}
> +
> +static int h265_metadata_update_slice_header(AVBSFContext *bsf,
> +        H265RawSliceHeader *slice)
> +{
> +    H265MetadataContext *ctx = bsf->priv_data;
> +
> +    if(ctx->advance_pps_id > -1) {
> +        slice->slice_pic_parameter_set_id =
> (slice->slice_pic_parameter_set_id + ctx->advance_pps_id) %
> HEVC_MAX_PPS_COUNT;
> +    }
> +    return 0;
> +}
> +
>  static int h265_metadata_filter(AVBSFContext *bsf, AVPacket *pkt)
>  {
>      H265MetadataContext *ctx = bsf->priv_data;
> @@ -406,15 +447,42 @@ static int h265_metadata_filter(AVBSFContext *bsf,
> AVPacket *pkt)
>          h265_metadata_guess_level(bsf, au);
>
>      for (i = 0; i < au->nb_units; i++) {
> -        if (au->units[i].type == HEVC_NAL_VPS) {
> +        switch (au->units[i].type) {
> +        case HEVC_NAL_VPS:
>              err = h265_metadata_update_vps(bsf, au->units[i].content);
>              if (err < 0)
>                  goto fail;
> -        }
> -        if (au->units[i].type == HEVC_NAL_SPS) {
> +            break;
> +        case HEVC_NAL_SPS:
>              err = h265_metadata_update_sps(bsf, au->units[i].content);
>              if (err < 0)
>                  goto fail;
> +            break;
> +        case HEVC_NAL_PPS:
> +            err = h265_metadata_update_pps(bsf, au->units[i].content);
> +            if (err < 0)
> +                goto fail;
> +            break;
> +        case HEVC_NAL_TRAIL_N:
> +        case HEVC_NAL_TRAIL_R:
> +        case HEVC_NAL_TSA_N:
> +        case HEVC_NAL_TSA_R:
> +        case HEVC_NAL_STSA_N:
> +        case HEVC_NAL_STSA_R:
> +        case HEVC_NAL_BLA_W_LP:
> +        case HEVC_NAL_BLA_W_RADL:
> +        case HEVC_NAL_BLA_N_LP:
> +        case HEVC_NAL_IDR_W_RADL:
> +        case HEVC_NAL_IDR_N_LP:
> +        case HEVC_NAL_CRA_NUT:
> +        case HEVC_NAL_RADL_N:
> +        case HEVC_NAL_RADL_R:
> +        case HEVC_NAL_RASL_N:
> +        case HEVC_NAL_RASL_R:
> +            err = h265_metadata_update_slice_header(bsf,
> au->units[i].content);
> +            if (err < 0)
> +                goto fail;
> +            break;
>          }
>      }
>
> @@ -455,15 +523,42 @@ static int h265_metadata_init(AVBSFContext *bsf)
>              h265_metadata_guess_level(bsf, au);
>
>          for (i = 0; i < au->nb_units; i++) {
> -            if (au->units[i].type == HEVC_NAL_VPS) {
> +            switch (au->units[i].type) {
> +            case HEVC_NAL_VPS:
>                  err = h265_metadata_update_vps(bsf, au->units[i].content);
>                  if (err < 0)
>                      goto fail;
> -            }
> -            if (au->units[i].type == HEVC_NAL_SPS) {
> +                break;
> +            case HEVC_NAL_SPS:
>                  err = h265_metadata_update_sps(bsf, au->units[i].content);
>                  if (err < 0)
>                      goto fail;
> +                break;
> +            case HEVC_NAL_PPS:
> +                err = h265_metadata_update_pps(bsf, au->units[i].content);
> +                if (err < 0)
> +                    goto fail;
> +                break;
> +            case HEVC_NAL_TRAIL_N:
> +            case HEVC_NAL_TRAIL_R:
> +            case HEVC_NAL_TSA_N:
> +            case HEVC_NAL_TSA_R:
> +            case HEVC_NAL_STSA_N:
> +            case HEVC_NAL_STSA_R:
> +            case HEVC_NAL_BLA_W_LP:
> +            case HEVC_NAL_BLA_W_RADL:
> +            case HEVC_NAL_BLA_N_LP:
> +            case HEVC_NAL_IDR_W_RADL:
> +            case HEVC_NAL_IDR_N_LP:
> +            case HEVC_NAL_CRA_NUT:
> +            case HEVC_NAL_RADL_N:
> +            case HEVC_NAL_RADL_R:
> +            case HEVC_NAL_RASL_N:
> +            case HEVC_NAL_RASL_R:
> +                err = h265_metadata_update_slice_header(bsf,
> au->units[i].content);
> +                if (err < 0)
> +                    goto fail;
> +                break;
>              }
>          }
>
> @@ -547,6 +642,16 @@ static const AVOption h265_metadata_options[] = {
>          OFFSET(crop_bottom), AV_OPT_TYPE_INT,
>          { .i64 = -1 }, -1, HEVC_MAX_HEIGHT, FLAGS },
>
> +    { "advance_vps_id", "Advance the vps id",
> +        OFFSET(advance_vps_id), AV_OPT_TYPE_INT,
> +        { .i64 = -1 }, -1, HEVC_MAX_VPS_COUNT, FLAGS },
> +    {  "advance_sps_id", "Advance the sps id",
> +        OFFSET(advance_sps_id), AV_OPT_TYPE_INT,
> +        { .i64 = -1 }, -1, HEVC_MAX_SPS_COUNT, FLAGS },
> +    {  "advance_pps_id", "Advance the pps id",
> +        OFFSET(advance_pps_id), AV_OPT_TYPE_INT,
> +        { .i64 = -1 }, -1, HEVC_MAX_PPS_COUNT, FLAGS },
> +
>

I wonder whether it would not be simpler to set the default values of these
options to zero and apply the offsets unconditionally.

- Andreas


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