This patch set need work with https://github.com/fraunhoferhhi/vvdec/pull/18
On Mon, Dec 21, 2020 at 2:08 PM Nuo Mi <nuomi2...@gmail.com> wrote: > --- > libavcodec/h266.h | 121 ++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 121 insertions(+) > create mode 100644 libavcodec/h266.h > > diff --git a/libavcodec/h266.h b/libavcodec/h266.h > new file mode 100644 > index 0000000000..d5793b76fc > --- /dev/null > +++ b/libavcodec/h266.h > @@ -0,0 +1,121 @@ > +/* > + * H.266 shared code > + * > + * This file is part of FFmpeg. > + * > + * FFmpeg is free software; you can redistribute it and/or > + * modify it under the terms of the GNU Lesser General Public > + * License as published by the Free Software Foundation; either > + * version 2.1 of the License, or (at your option) any later version. > + * > + * FFmpeg is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * Lesser General Public License for more details. > + * > + * You should have received a copy of the GNU Lesser General Public > + * License along with FFmpeg; if not, write to the Free Software > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA > 02110-1301 USA > + */ > + > +#ifndef AVCODEC_H266_H > +#define AVCODEC_H266_H > + > +/** > + * Table 5 – NAL unit type codes and NAL unit type classes in > + * T-REC-H.266-202008 > + */ > +enum H266NALUnitType { > + H266_NAL_TRAIL = 0, > + H266_NAL_STSA = 1, > + H266_NAL_RADL = 2, > + H266_NAL_RASL = 3, > + H266_NAL_RSV_VCL_4 = 4, > + H266_NAL_RSV_VCL_5 = 5, > + H266_NAL_RSV_VCL_6 = 6, > + H266_NAL_IDR_W_RADL = 7, > + H266_NAL_IDR_N_LP = 8, > + H266_NAL_CRA_NUT = 9, > + H266_NAL_GDR_NUT = 10, > + H266_NAL_RSV_IRAP_11 = 11, > + H266_NAL_OPI = 12, > + H266_NAL_DCI = 13, > + H266_NAL_VPS = 14, > + H266_NAL_SPS = 15, > + H266_NAL_PPS = 16, > + H266_NAL_PREFIX_APS = 17, > + H266_NAL_SUFFIX_APS = 18, > + H266_NAL_PH = 19, > + H266_NAL_AUD = 20, > + H266_NAL_EOS_NUT = 21, > + H266_NAL_EOB_NUT = 22, > + H266_NAL_PREFIX_SEI = 23, > + H266_NAL_SUFFIX_SEI = 24, > + H266_NAL_FD_NUT = 25, > + H266_NAL_RSV_NVCL_26 = 26, > + H266_NAL_RSV_NVCL_27 = 27, > + H266_NAL_UNSPEC_28 = 28, > + H266_NAL_UNSPEC_29 = 29, > + H266_NAL_UNSPEC_30 = 30, > + H266_NAL_UNSPEC_31 = 31, > +}; > + > +enum H266SliceType { > + H266_SLICE_B = 0, > + H266_SLICE_P = 1, > + H266_SLICE_I = 2, > +}; > + > +enum { > + H266_MAX_PLANES = 3, > + //7.4.3.3 The value of vps_max_sublayers_minus1 shall be in the > range of 0 to 6, inclusive > + H266_MAX_SUB_LAYERS = 7, > + > + // 7.3.2.3: vps_video_parameter_set_id is u(4). > + H266_MAX_VPS_COUNT = 16, > + // 7.3.2.4: sps_seq_parameter_set_id is in [0, 15]. > + H266_MAX_SPS_COUNT = 16, > + // 7.3.2.5: pps_pic_parameter_set_id is in [0, 63]. > + H266_MAX_PPS_COUNT = 64, > + > + // A.4.2: MaxDpbSize is bounded above by 16. > + H266_MAX_DPB_SIZE = 16, > + > + //7.4.3.4 sps_num_ref_pic_lists in range [0, 64] > + H266_MAX_REF_PIC_LISTS = 64, > + > + //7.4.3.3 sps_num_points_in_qp_table_minus1[i] in range [0, 36 − > sps_qp_table_start_minus26[i]], > + //sps_qp_table_start_minus26[i] in range > [sps_qp_table_start_minus26[i] −26 − QpBdOffset, 36] > + //for 10 bitsQpBdOffset is 12, so > sps_num_points_in_qp_table_minus1[i] in range [0, 74] > + H266_MAX_POINTS_IN_QP_TABLE = 75, > + > + // 7.4.6.1: hrd_cpb_cnt_minus1 is in [0, 31]. > + H266_MAX_CPB_CNT = 32, > + > + // A.4.1: in table A.6 the highest level allows a MaxLumaPs of 35 651 > 584. > + H266_MAX_LUMA_PS = 35651584, > + // A.4.1: pic_width_in_luma_samples and pic_height_in_luma_samples are > + // constrained to be not greater than sqrt(MaxLumaPs * 8). Hence > height/ > + // width are bounded above by sqrt(8 * 35651584) = 16888.2 samples. > + H266_MAX_WIDTH = 16888, > + H266_MAX_HEIGHT = 16888, > + > + // A.4.1: table A.1 allows at most 20 tile rows for any level. > + H266_MAX_TILE_ROWS = 20, > + // A.4.1: table A.1 allows at most 20 tile columns for any level. > + H266_MAX_TILE_COLUMNS = 20, > + > + // A.4.1 table A.1 allows at most 600 slice for any level. > + H266_MAX_SLICES = 600, > + > + // 7.4.8: in the worst case (tiles_enabled_flag and > + // entropy_coding_sync_enabled_flag are both set), entry points can be > + // placed at the beginning of every Ctb row in every tile, giving an > + // upper bound of (num_tile_columns_minus1 + 1) * PicHeightInCtbsY - > 1. > + // Only a stream with very high resolution and perverse parameters > could > + // get near that, though, so set a lower limit here with the maximum > + // possible value for 8K video (at most 135 32x32 Ctb rows). > + H266_MAX_ENTRY_POINT_OFFSETS = H266_MAX_TILE_COLUMNS * 135, > +}; > + > +#endif /* AVCODEC_H266_H */ > -- > 2.25.1 > > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".