| /* |
| * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder |
| * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * 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 |
| */ |
| |
| /** |
| * @file |
| * H.264 / AVC / MPEG4 part10 codec. |
| * @author Michael Niedermayer <michaelni@gmx.at> |
| */ |
| |
| #ifndef AVCODEC_H264_H |
| #define AVCODEC_H264_H |
| |
| #include "libavutil/intreadwrite.h" |
| #include "libavutil/thread.h" |
| #include "cabac.h" |
| #include "error_resilience.h" |
| #include "get_bits.h" |
| #include "h264chroma.h" |
| #include "h264dsp.h" |
| #include "h264pred.h" |
| #include "h264qpel.h" |
| #include "internal.h" |
| #include "mpegutils.h" |
| #include "parser.h" |
| #include "qpeldsp.h" |
| #include "rectangle.h" |
| #include "videodsp.h" |
| |
| #define H264_MAX_PICTURE_COUNT 36 |
| #define H264_MAX_THREADS 32 |
| |
| #define MAX_SPS_COUNT 32 |
| #define MAX_PPS_COUNT 256 |
| |
| #define MAX_MMCO_COUNT 66 |
| |
| #define MAX_DELAYED_PIC_COUNT 16 |
| |
| #define MAX_MBPAIR_SIZE (256*1024) // a tighter bound could be calculated if someone cares about a few bytes |
| |
| /* Compiling in interlaced support reduces the speed |
| * of progressive decoding by about 2%. */ |
| #define ALLOW_INTERLACE |
| |
| #define FMO 0 |
| |
| /** |
| * The maximum number of slices supported by the decoder. |
| * must be a power of 2 |
| */ |
| #define MAX_SLICES 32 |
| |
| #ifdef ALLOW_INTERLACE |
| #define MB_MBAFF(h) (h)->mb_mbaff |
| #define MB_FIELD(sl) (sl)->mb_field_decoding_flag |
| #define FRAME_MBAFF(h) (h)->mb_aff_frame |
| #define FIELD_PICTURE(h) ((h)->picture_structure != PICT_FRAME) |
| #define LEFT_MBS 2 |
| #define LTOP 0 |
| #define LBOT 1 |
| #define LEFT(i) (i) |
| #else |
| #define MB_MBAFF(h) 0 |
| #define MB_FIELD(sl) 0 |
| #define FRAME_MBAFF(h) 0 |
| #define FIELD_PICTURE(h) 0 |
| #undef IS_INTERLACED |
| #define IS_INTERLACED(mb_type) 0 |
| #define LEFT_MBS 1 |
| #define LTOP 0 |
| #define LBOT 0 |
| #define LEFT(i) 0 |
| #endif |
| #define FIELD_OR_MBAFF_PICTURE(h) (FRAME_MBAFF(h) || FIELD_PICTURE(h)) |
| |
| #ifndef CABAC |
| #define CABAC(h) (h)->pps.cabac |
| #endif |
| |
| #define CHROMA(h) ((h)->sps.chroma_format_idc) |
| #define CHROMA422(h) ((h)->sps.chroma_format_idc == 2) |
| #define CHROMA444(h) ((h)->sps.chroma_format_idc == 3) |
| |
| #define EXTENDED_SAR 255 |
| |
| #define MB_TYPE_REF0 MB_TYPE_ACPRED // dirty but it fits in 16 bit |
| #define MB_TYPE_8x8DCT 0x01000000 |
| #define IS_REF0(a) ((a) & MB_TYPE_REF0) |
| #define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT) |
| |
| #define QP_MAX_NUM (51 + 6*6) // The maximum supported qp |
| |
| /* NAL unit types */ |
| enum { |
| NAL_SLICE = 1, |
| NAL_DPA = 2, |
| NAL_DPB = 3, |
| NAL_DPC = 4, |
| NAL_IDR_SLICE = 5, |
| NAL_SEI = 6, |
| NAL_SPS = 7, |
| NAL_PPS = 8, |
| NAL_AUD = 9, |
| NAL_END_SEQUENCE = 10, |
| NAL_END_STREAM = 11, |
| NAL_FILLER_DATA = 12, |
| NAL_SPS_EXT = 13, |
| NAL_AUXILIARY_SLICE = 19, |
| NAL_FF_IGNORE = 0xff0f001, |
| }; |
| |
| /** |
| * SEI message types |
| */ |
| typedef enum { |
| SEI_TYPE_BUFFERING_PERIOD = 0, ///< buffering period (H.264, D.1.1) |
| SEI_TYPE_PIC_TIMING = 1, ///< picture timing |
| SEI_TYPE_USER_DATA_REGISTERED = 4, ///< registered user data as specified by Rec. ITU-T T.35 |
| SEI_TYPE_USER_DATA_UNREGISTERED = 5, ///< unregistered user data |
| SEI_TYPE_RECOVERY_POINT = 6, ///< recovery point (frame # to decoder sync) |
| SEI_TYPE_FRAME_PACKING = 45, ///< frame packing arrangement |
| SEI_TYPE_DISPLAY_ORIENTATION = 47, ///< display orientation |
| SEI_TYPE_GREEN_METADATA = 56 ///< GreenMPEG information |
| } SEI_Type; |
| |
| /** |
| * pic_struct in picture timing SEI message |
| */ |
| typedef enum { |
| SEI_PIC_STRUCT_FRAME = 0, ///< 0: %frame |
| SEI_PIC_STRUCT_TOP_FIELD = 1, ///< 1: top field |
| SEI_PIC_STRUCT_BOTTOM_FIELD = 2, ///< 2: bottom field |
| SEI_PIC_STRUCT_TOP_BOTTOM = 3, ///< 3: top field, bottom field, in that order |
| SEI_PIC_STRUCT_BOTTOM_TOP = 4, ///< 4: bottom field, top field, in that order |
| SEI_PIC_STRUCT_TOP_BOTTOM_TOP = 5, ///< 5: top field, bottom field, top field repeated, in that order |
| SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6, ///< 6: bottom field, top field, bottom field repeated, in that order |
| SEI_PIC_STRUCT_FRAME_DOUBLING = 7, ///< 7: %frame doubling |
| SEI_PIC_STRUCT_FRAME_TRIPLING = 8 ///< 8: %frame tripling |
| } SEI_PicStructType; |
| |
| /** |
| * frame_packing_arrangement types |
| */ |
| typedef enum { |
| SEI_FPA_TYPE_CHECKERBOARD = 0, |
| SEI_FPA_TYPE_INTERLEAVE_COLUMN = 1, |
| SEI_FPA_TYPE_INTERLEAVE_ROW = 2, |
| SEI_FPA_TYPE_SIDE_BY_SIDE = 3, |
| SEI_FPA_TYPE_TOP_BOTTOM = 4, |
| SEI_FPA_TYPE_INTERLEAVE_TEMPORAL = 5, |
| SEI_FPA_TYPE_2D = 6, |
| } SEI_FpaType; |
| |
| /** |
| * Sequence parameter set |
| */ |
| typedef struct SPS { |
| unsigned int sps_id; |
| int profile_idc; |
| int level_idc; |
| int chroma_format_idc; |
| int transform_bypass; ///< qpprime_y_zero_transform_bypass_flag |
| int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4 |
| int poc_type; ///< pic_order_cnt_type |
| int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4 |
| int delta_pic_order_always_zero_flag; |
| int offset_for_non_ref_pic; |
| int offset_for_top_to_bottom_field; |
| int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle |
| int ref_frame_count; ///< num_ref_frames |
| int gaps_in_frame_num_allowed_flag; |
| int mb_width; ///< pic_width_in_mbs_minus1 + 1 |
| int mb_height; ///< pic_height_in_map_units_minus1 + 1 |
| int frame_mbs_only_flag; |
| int mb_aff; ///< mb_adaptive_frame_field_flag |
| int direct_8x8_inference_flag; |
| int crop; ///< frame_cropping_flag |
| |
| /* those 4 are already in luma samples */ |
| unsigned int crop_left; ///< frame_cropping_rect_left_offset |
| unsigned int crop_right; ///< frame_cropping_rect_right_offset |
| unsigned int crop_top; ///< frame_cropping_rect_top_offset |
| unsigned int crop_bottom; ///< frame_cropping_rect_bottom_offset |
| int vui_parameters_present_flag; |
| AVRational sar; |
| int video_signal_type_present_flag; |
| int full_range; |
| int colour_description_present_flag; |
| enum AVColorPrimaries color_primaries; |
| enum AVColorTransferCharacteristic color_trc; |
| enum AVColorSpace colorspace; |
| int timing_info_present_flag; |
| uint32_t num_units_in_tick; |
| uint32_t time_scale; |
| int fixed_frame_rate_flag; |
| short offset_for_ref_frame[256]; // FIXME dyn aloc? |
| int bitstream_restriction_flag; |
| int num_reorder_frames; |
| int scaling_matrix_present; |
| uint8_t scaling_matrix4[6][16]; |
| uint8_t scaling_matrix8[6][64]; |
| int nal_hrd_parameters_present_flag; |
| int vcl_hrd_parameters_present_flag; |
| int pic_struct_present_flag; |
| int time_offset_length; |
| int cpb_cnt; ///< See H.264 E.1.2 |
| int initial_cpb_removal_delay_length; ///< initial_cpb_removal_delay_length_minus1 + 1 |
| int cpb_removal_delay_length; ///< cpb_removal_delay_length_minus1 + 1 |
| int dpb_output_delay_length; ///< dpb_output_delay_length_minus1 + 1 |
| int bit_depth_luma; ///< bit_depth_luma_minus8 + 8 |
| int bit_depth_chroma; ///< bit_depth_chroma_minus8 + 8 |
| int residual_color_transform_flag; ///< residual_colour_transform_flag |
| int constraint_set_flags; ///< constraint_set[0-3]_flag |
| int new; ///< flag to keep track if the decoder context needs re-init due to changed SPS |
| uint8_t data[4096]; |
| size_t data_size; |
| } SPS; |
| |
| /** |
| * Picture parameter set |
| */ |
| typedef struct PPS { |
| unsigned int sps_id; |
| int cabac; ///< entropy_coding_mode_flag |
| int pic_order_present; ///< pic_order_present_flag |
| int slice_group_count; ///< num_slice_groups_minus1 + 1 |
| int mb_slice_group_map_type; |
| unsigned int ref_count[2]; ///< num_ref_idx_l0/1_active_minus1 + 1 |
| int weighted_pred; ///< weighted_pred_flag |
| int weighted_bipred_idc; |
| int init_qp; ///< pic_init_qp_minus26 + 26 |
| int init_qs; ///< pic_init_qs_minus26 + 26 |
| int chroma_qp_index_offset[2]; |
| int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag |
| int constrained_intra_pred; ///< constrained_intra_pred_flag |
| int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag |
| int transform_8x8_mode; ///< transform_8x8_mode_flag |
| uint8_t scaling_matrix4[6][16]; |
| uint8_t scaling_matrix8[6][64]; |
| uint8_t chroma_qp_table[2][QP_MAX_NUM+1]; ///< pre-scaled (with chroma_qp_index_offset) version of qp_table |
| int chroma_qp_diff; |
| uint8_t data[4096]; |
| size_t data_size; |
| } PPS; |
| |
| /** |
| * Frame Packing Arrangement Type |
| */ |
| typedef struct FPA { |
| int frame_packing_arrangement_id; |
| int frame_packing_arrangement_cancel_flag; ///< is previous arrangement canceled, -1 if never received |
| SEI_FpaType frame_packing_arrangement_type; |
| int frame_packing_arrangement_repetition_period; |
| int content_interpretation_type; |
| int quincunx_sampling_flag; |
| } FPA; |
| |
| /** |
| * Green MetaData Information Type |
| */ |
| typedef struct GreenMetaData { |
| uint8_t green_metadata_type; |
| uint8_t period_type; |
| uint16_t num_seconds; |
| uint16_t num_pictures; |
| uint8_t percent_non_zero_macroblocks; |
| uint8_t percent_intra_coded_macroblocks; |
| uint8_t percent_six_tap_filtering; |
| uint8_t percent_alpha_point_deblocking_instance; |
| uint8_t xsd_metric_type; |
| uint16_t xsd_metric_value; |
| } GreenMetaData; |
| |
| /** |
| * Memory management control operation opcode. |
| */ |
| typedef enum MMCOOpcode { |
| MMCO_END = 0, |
| MMCO_SHORT2UNUSED, |
| MMCO_LONG2UNUSED, |
| MMCO_SHORT2LONG, |
| MMCO_SET_MAX_LONG, |
| MMCO_RESET, |
| MMCO_LONG, |
| } MMCOOpcode; |
| |
| /** |
| * Memory management control operation. |
| */ |
| typedef struct MMCO { |
| MMCOOpcode opcode; |
| int short_pic_num; ///< pic_num without wrapping (pic_num & max_pic_num) |
| int long_arg; ///< index, pic_num, or num long refs depending on opcode |
| } MMCO; |
| |
| typedef struct H264Picture { |
| AVFrame *f; |
| ThreadFrame tf; |
| |
| AVBufferRef *qscale_table_buf; |
| int8_t *qscale_table; |
| |
| AVBufferRef *motion_val_buf[2]; |
| int16_t (*motion_val[2])[2]; |
| |
| AVBufferRef *mb_type_buf; |
| uint32_t *mb_type; |
| |
| AVBufferRef *hwaccel_priv_buf; |
| void *hwaccel_picture_private; ///< hardware accelerator private data |
| |
| AVBufferRef *ref_index_buf[2]; |
| int8_t *ref_index[2]; |
| |
| int field_poc[2]; ///< top/bottom POC |
| int poc; ///< frame POC |
| int frame_num; ///< frame_num (raw frame_num from slice header) |
| int mmco_reset; /**< MMCO_RESET set this 1. Reordering code must |
| not mix pictures before and after MMCO_RESET. */ |
| int pic_id; /**< pic_num (short -> no wrap version of pic_num, |
| pic_num & max_pic_num; long -> long_pic_num) */ |
| int long_ref; ///< 1->long term reference 0->short term reference |
| int ref_poc[2][2][32]; ///< POCs of the frames/fields used as reference (FIXME need per slice) |
| int ref_count[2][2]; ///< number of entries in ref_poc (FIXME need per slice) |
| int mbaff; ///< 1 -> MBAFF frame 0-> not MBAFF |
| int field_picture; ///< whether or not picture was encoded in separate fields |
| |
| int reference; |
| int recovered; ///< picture at IDR or recovery point + recovery count |
| int invalid_gap; |
| int sei_recovery_frame_cnt; |
| |
| int crop; |
| int crop_left; |
| int crop_top; |
| } H264Picture; |
| |
| typedef struct H264Ref { |
| uint8_t *data[3]; |
| int linesize[3]; |
| |
| int reference; |
| int poc; |
| int pic_id; |
| |
| H264Picture *parent; |
| } H264Ref; |
| |
| typedef struct H264SliceContext { |
| struct H264Context *h264; |
| GetBitContext gb; |
| ERContext er; |
| |
| int slice_num; |
| int slice_type; |
| int slice_type_nos; ///< S free slice type (SI/SP are remapped to I/P) |
| int slice_type_fixed; |
| |
| int qscale; |
| int chroma_qp[2]; // QPc |
| int qp_thresh; ///< QP threshold to skip loopfilter |
| int last_qscale_diff; |
| |
| // deblock |
| int deblocking_filter; ///< disable_deblocking_filter_idc with 1 <-> 0 |
| int slice_alpha_c0_offset; |
| int slice_beta_offset; |
| |
| // Weighted pred stuff |
| int use_weight; |
| int use_weight_chroma; |
| int luma_log2_weight_denom; |
| int chroma_log2_weight_denom; |
| int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag |
| int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag |
| // The following 2 can be changed to int8_t but that causes 10cpu cycles speedloss |
| int luma_weight[48][2][2]; |
| int chroma_weight[48][2][2][2]; |
| int implicit_weight[48][48][2]; |
| |
| int prev_mb_skipped; |
| int next_mb_skipped; |
| |
| int chroma_pred_mode; |
| int intra16x16_pred_mode; |
| |
| int8_t intra4x4_pred_mode_cache[5 * 8]; |
| int8_t(*intra4x4_pred_mode); |
| |
| int topleft_mb_xy; |
| int top_mb_xy; |
| int topright_mb_xy; |
| int left_mb_xy[LEFT_MBS]; |
| |
| int topleft_type; |
| int top_type; |
| int topright_type; |
| int left_type[LEFT_MBS]; |
| |
| const uint8_t *left_block; |
| int topleft_partition; |
| |
| unsigned int topleft_samples_available; |
| unsigned int top_samples_available; |
| unsigned int topright_samples_available; |
| unsigned int left_samples_available; |
| |
| ptrdiff_t linesize, uvlinesize; |
| ptrdiff_t mb_linesize; ///< may be equal to s->linesize or s->linesize * 2, for mbaff |
| ptrdiff_t mb_uvlinesize; |
| |
| int mb_x, mb_y; |
| int mb_xy; |
| int resync_mb_x; |
| int resync_mb_y; |
| // index of the first MB of the next slice |
| int next_slice_idx; |
| int mb_skip_run; |
| int is_complex; |
| |
| int mb_field_decoding_flag; |
| int mb_mbaff; ///< mb_aff_frame && mb_field_decoding_flag |
| |
| int redundant_pic_count; |
| |
| /** |
| * number of neighbors (top and/or left) that used 8x8 dct |
| */ |
| int neighbor_transform_size; |
| |
| int direct_spatial_mv_pred; |
| int col_parity; |
| int col_fieldoff; |
| |
| int cbp; |
| int top_cbp; |
| int left_cbp; |
| |
| int dist_scale_factor[32]; |
| int dist_scale_factor_field[2][32]; |
| int map_col_to_list0[2][16 + 32]; |
| int map_col_to_list0_field[2][2][16 + 32]; |
| |
| /** |
| * num_ref_idx_l0/1_active_minus1 + 1 |
| */ |
| unsigned int ref_count[2]; ///< counts frames or fields, depending on current mb mode |
| unsigned int list_count; |
| H264Ref ref_list[2][48]; /**< 0..15: frame refs, 16..47: mbaff field refs. |
| * Reordered version of default_ref_list |
| * according to picture reordering in slice header */ |
| int ref2frm[MAX_SLICES][2][64]; ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1 |
| |
| const uint8_t *intra_pcm_ptr; |
| int16_t *dc_val_base; |
| |
| uint8_t *bipred_scratchpad; |
| uint8_t *edge_emu_buffer; |
| uint8_t (*top_borders[2])[(16 * 3) * 2]; |
| int bipred_scratchpad_allocated; |
| int edge_emu_buffer_allocated; |
| int top_borders_allocated[2]; |
| |
| /** |
| * non zero coeff count cache. |
| * is 64 if not available. |
| */ |
| DECLARE_ALIGNED(8, uint8_t, non_zero_count_cache)[15 * 8]; |
| |
| /** |
| * Motion vector cache. |
| */ |
| DECLARE_ALIGNED(16, int16_t, mv_cache)[2][5 * 8][2]; |
| DECLARE_ALIGNED(8, int8_t, ref_cache)[2][5 * 8]; |
| DECLARE_ALIGNED(16, uint8_t, mvd_cache)[2][5 * 8][2]; |
| uint8_t direct_cache[5 * 8]; |
| |
| DECLARE_ALIGNED(8, uint16_t, sub_mb_type)[4]; |
| |
| ///< as a dct coefficient is int32_t in high depth, we need to reserve twice the space. |
| DECLARE_ALIGNED(16, int16_t, mb)[16 * 48 * 2]; |
| DECLARE_ALIGNED(16, int16_t, mb_luma_dc)[3][16 * 2]; |
| ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either |
| ///< check that i is not too large or ensure that there is some unused stuff after mb |
| int16_t mb_padding[256 * 2]; |
| |
| uint8_t (*mvd_table[2])[2]; |
| |
| /** |
| * Cabac |
| */ |
| CABACContext cabac; |
| uint8_t cabac_state[1024]; |
| int cabac_init_idc; |
| |
| // rbsp buffer used for this slice |
| uint8_t *rbsp_buffer; |
| unsigned int rbsp_buffer_size; |
| } H264SliceContext; |
| |
| /** |
| * H264Context |
| */ |
| typedef struct H264Context { |
| AVClass *av_class; |
| AVCodecContext *avctx; |
| VideoDSPContext vdsp; |
| H264DSPContext h264dsp; |
| H264ChromaContext h264chroma; |
| H264QpelContext h264qpel; |
| GetBitContext gb; |
| |
| H264Picture DPB[H264_MAX_PICTURE_COUNT]; |
| H264Picture *cur_pic_ptr; |
| H264Picture cur_pic; |
| H264Picture last_pic_for_ec; |
| |
| H264SliceContext *slice_ctx; |
| int nb_slice_ctx; |
| |
| int pixel_shift; ///< 0 for 8-bit H264, 1 for high-bit-depth H264 |
| |
| /* coded dimensions -- 16 * mb w/h */ |
| int width, height; |
| int chroma_x_shift, chroma_y_shift; |
| |
| /** |
| * Backup frame properties: needed, because they can be different |
| * between returned frame and last decoded frame. |
| **/ |
| int backup_width; |
| int backup_height; |
| enum AVPixelFormat backup_pix_fmt; |
| |
| int droppable; |
| int coded_picture_number; |
| int low_delay; |
| |
| int context_initialized; |
| int flags; |
| int workaround_bugs; |
| |
| int8_t(*intra4x4_pred_mode); |
| H264PredContext hpc; |
| |
| uint8_t (*non_zero_count)[48]; |
| |
| #define LIST_NOT_USED -1 // FIXME rename? |
| #define PART_NOT_AVAILABLE -2 |
| |
| /** |
| * block_offset[ 0..23] for frame macroblocks |
| * block_offset[24..47] for field macroblocks |
| */ |
| int block_offset[2 * (16 * 3)]; |
| |
| uint32_t *mb2b_xy; // FIXME are these 4 a good idea? |
| uint32_t *mb2br_xy; |
| int b_stride; // FIXME use s->b4_stride |
| |
| |
| unsigned current_sps_id; ///< id of the current SPS |
| SPS sps; ///< current sps |
| PPS pps; ///< current pps |
| |
| int au_pps_id; ///< pps_id of current access unit |
| |
| uint32_t dequant4_buffer[6][QP_MAX_NUM + 1][16]; // FIXME should these be moved down? |
| uint32_t dequant8_buffer[6][QP_MAX_NUM + 1][64]; |
| uint32_t(*dequant4_coeff[6])[16]; |
| uint32_t(*dequant8_coeff[6])[64]; |
| |
| uint16_t *slice_table; ///< slice_table_base + 2*mb_stride + 1 |
| |
| // interlacing specific flags |
| int mb_aff_frame; |
| int picture_structure; |
| int first_field; |
| |
| uint8_t *list_counts; ///< Array of list_count per MB specifying the slice type |
| |
| /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0, 1, 2), 0x0? luma_cbp */ |
| uint16_t *cbp_table; |
| |
| /* chroma_pred_mode for i4x4 or i16x16, else 0 */ |
| uint8_t *chroma_pred_mode_table; |
| uint8_t (*mvd_table[2])[2]; |
| uint8_t *direct_table; |
| |
| uint8_t zigzag_scan[16]; |
| uint8_t zigzag_scan8x8[64]; |
| uint8_t zigzag_scan8x8_cavlc[64]; |
| uint8_t field_scan[16]; |
| uint8_t field_scan8x8[64]; |
| uint8_t field_scan8x8_cavlc[64]; |
| uint8_t zigzag_scan_q0[16]; |
| uint8_t zigzag_scan8x8_q0[64]; |
| uint8_t zigzag_scan8x8_cavlc_q0[64]; |
| uint8_t field_scan_q0[16]; |
| uint8_t field_scan8x8_q0[64]; |
| uint8_t field_scan8x8_cavlc_q0[64]; |
| |
| int x264_build; |
| |
| int mb_y; |
| int mb_height, mb_width; |
| int mb_stride; |
| int mb_num; |
| |
| // ============================================================= |
| // Things below are not used in the MB or more inner code |
| |
| int nal_ref_idc; |
| int nal_unit_type; |
| |
| /** |
| * Used to parse AVC variant of h264 |
| */ |
| int is_avc; ///< this flag is != 0 if codec is avc1 |
| int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4) |
| |
| int bit_depth_luma; ///< luma bit depth from sps to detect changes |
| int chroma_format_idc; ///< chroma format from sps to detect changes |
| |
| SPS *sps_buffers[MAX_SPS_COUNT]; |
| PPS *pps_buffers[MAX_PPS_COUNT]; |
| |
| int dequant_coeff_pps; ///< reinit tables when pps changes |
| |
| uint16_t *slice_table_base; |
| |
| // POC stuff |
| int poc_lsb; |
| int poc_msb; |
| int delta_poc_bottom; |
| int delta_poc[2]; |
| int frame_num; |
| int prev_poc_msb; ///< poc_msb of the last reference pic for POC type 0 |
| int prev_poc_lsb; ///< poc_lsb of the last reference pic for POC type 0 |
| int frame_num_offset; ///< for POC type 2 |
| int prev_frame_num_offset; ///< for POC type 2 |
| int prev_frame_num; ///< frame_num of the last pic for POC type 1/2 |
| |
| /** |
| * frame_num for frames or 2 * frame_num + 1 for field pics. |
| */ |
| int curr_pic_num; |
| |
| /** |
| * max_frame_num or 2 * max_frame_num for field pics. |
| */ |
| int max_pic_num; |
| |
| H264Ref default_ref[2]; |
| H264Picture *short_ref[32]; |
| H264Picture *long_ref[32]; |
| H264Picture *delayed_pic[MAX_DELAYED_PIC_COUNT + 2]; // FIXME size? |
| int last_pocs[MAX_DELAYED_PIC_COUNT]; |
| H264Picture *next_output_pic; |
| int next_outputed_poc; |
| |
| /** |
| * memory management control operations buffer. |
| */ |
| MMCO mmco[MAX_MMCO_COUNT]; |
| int mmco_index; |
| int mmco_reset; |
| |
| int long_ref_count; ///< number of actual long term references |
| int short_ref_count; ///< number of actual short term references |
| |
| /** |
| * @name Members for slice based multithreading |
| * @{ |
| */ |
| /** |
| * current slice number, used to initialize slice_num of each thread/context |
| */ |
| int current_slice; |
| |
| /** |
| * Max number of threads / contexts. |
| * This is equal to AVCodecContext.thread_count unless |
| * multithreaded decoding is impossible, in which case it is |
| * reduced to 1. |
| */ |
| int max_contexts; |
| |
| int slice_context_count; |
| |
| /** |
| * 1 if the single thread fallback warning has already been |
| * displayed, 0 otherwise. |
| */ |
| int single_decode_warning; |
| |
| enum AVPictureType pict_type; |
| |
| /** @} */ |
| |
| /** |
| * pic_struct in picture timing SEI message |
| */ |
| SEI_PicStructType sei_pic_struct; |
| |
| /** |
| * Complement sei_pic_struct |
| * SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames. |
| * However, soft telecined frames may have these values. |
| * This is used in an attempt to flag soft telecine progressive. |
| */ |
| int prev_interlaced_frame; |
| |
| /** |
| * frame_packing_arrangment SEI message |
| */ |
| int sei_frame_packing_present; |
| int frame_packing_arrangement_type; |
| int content_interpretation_type; |
| int quincunx_subsampling; |
| |
| /** |
| * display orientation SEI message |
| */ |
| int sei_display_orientation_present; |
| int sei_anticlockwise_rotation; |
| int sei_hflip, sei_vflip; |
| |
| /** |
| * User data registered by Rec. ITU-T T.35 SEI |
| */ |
| int sei_reguserdata_afd_present; |
| uint8_t active_format_description; |
| int a53_caption_size; |
| uint8_t *a53_caption; |
| |
| /** |
| * Bit set of clock types for fields/frames in picture timing SEI message. |
| * For each found ct_type, appropriate bit is set (e.g., bit 1 for |
| * interlaced). |
| */ |
| int sei_ct_type; |
| |
| /** |
| * dpb_output_delay in picture timing SEI message, see H.264 C.2.2 |
| */ |
| int sei_dpb_output_delay; |
| |
| /** |
| * cpb_removal_delay in picture timing SEI message, see H.264 C.1.2 |
| */ |
| int sei_cpb_removal_delay; |
| |
| /** |
| * recovery_frame_cnt from SEI message |
| * |
| * Set to -1 if no recovery point SEI message found or to number of frames |
| * before playback synchronizes. Frames having recovery point are key |
| * frames. |
| */ |
| int sei_recovery_frame_cnt; |
| |
| /** |
| * Are the SEI recovery points looking valid. |
| */ |
| int valid_recovery_point; |
| |
| FPA sei_fpa; |
| |
| /** |
| * recovery_frame is the frame_num at which the next frame should |
| * be fully constructed. |
| * |
| * Set to -1 when not expecting a recovery point. |
| */ |
| int recovery_frame; |
| |
| /** |
| * We have seen an IDR, so all the following frames in coded order are correctly |
| * decodable. |
| */ |
| #define FRAME_RECOVERED_IDR (1 << 0) |
| /** |
| * Sufficient number of frames have been decoded since a SEI recovery point, |
| * so all the following frames in presentation order are correct. |
| */ |
| #define FRAME_RECOVERED_SEI (1 << 1) |
| |
| int frame_recovered; ///< Initial frame has been completely recovered |
| |
| int has_recovery_point; |
| |
| int missing_fields; |
| |
| /* for frame threading, this is set to 1 |
| * after finish_setup() has been called, so we cannot modify |
| * some context properties (which are supposed to stay constant between |
| * slices) anymore */ |
| int setup_finished; |
| |
| // Timestamp stuff |
| int sei_buffering_period_present; ///< Buffering period SEI flag |
| int initial_cpb_removal_delay[32]; ///< Initial timestamps for CPBs |
| |
| int cur_chroma_format_idc; |
| int cur_bit_depth_luma; |
| int16_t slice_row[MAX_SLICES]; ///< to detect when MAX_SLICES is too low |
| |
| uint8_t parse_history[6]; |
| int parse_history_count; |
| int parse_last_mb; |
| |
| int enable_er; |
| |
| AVBufferPool *qscale_table_pool; |
| AVBufferPool *mb_type_pool; |
| AVBufferPool *motion_val_pool; |
| AVBufferPool *ref_index_pool; |
| |
| /* Motion Estimation */ |
| qpel_mc_func (*qpel_put)[16]; |
| qpel_mc_func (*qpel_avg)[16]; |
| |
| /*Green Metadata */ |
| GreenMetaData sei_green_metadata; |
| |
| } H264Context; |
| |
| extern const uint8_t ff_h264_chroma_qp[7][QP_MAX_NUM + 1]; ///< One chroma qp table for each possible bit depth (8-14). |
| extern const uint16_t ff_h264_mb_sizes[4]; |
| |
| /** |
| * Decode SEI |
| */ |
| int ff_h264_decode_sei(H264Context *h); |
| |
| /** |
| * Decode SPS |
| */ |
| int ff_h264_decode_seq_parameter_set(H264Context *h, int ignore_truncation); |
| |
| /** |
| * compute profile from sps |
| */ |
| int ff_h264_get_profile(SPS *sps); |
| |
| /** |
| * Decode PPS |
| */ |
| int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length); |
| |
| /** |
| * Decode a network abstraction layer unit. |
| * @param consumed is the number of bytes used as input |
| * @param length is the length of the array |
| * @param dst_length is the number of decoded bytes FIXME here |
| * or a decode rbsp tailing? |
| * @return decoded bytes, might be src+1 if no escapes |
| */ |
| const uint8_t *ff_h264_decode_nal(H264Context *h, H264SliceContext *sl, const uint8_t *src, |
| int *dst_length, int *consumed, int length); |
| |
| /** |
| * Free any data that may have been allocated in the H264 context |
| * like SPS, PPS etc. |
| */ |
| void ff_h264_free_context(H264Context *h); |
| |
| /** |
| * Reconstruct bitstream slice_type. |
| */ |
| int ff_h264_get_slice_type(const H264SliceContext *sl); |
| |
| /** |
| * Allocate tables. |
| * needs width/height |
| */ |
| int ff_h264_alloc_tables(H264Context *h); |
| |
| int ff_h264_decode_ref_pic_list_reordering(H264Context *h, H264SliceContext *sl); |
| void ff_h264_fill_mbaff_ref_list(H264Context *h, H264SliceContext *sl); |
| void ff_h264_remove_all_refs(H264Context *h); |
| |
| /** |
| * Execute the reference picture marking (memory management control operations). |
| */ |
| int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count); |
| |
| int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb, |
| int first_slice); |
| |
| int ff_generate_sliding_window_mmcos(H264Context *h, int first_slice); |
| |
| /** |
| * Check if the top & left blocks are available if needed & change the |
| * dc mode so it only uses the available blocks. |
| */ |
| int ff_h264_check_intra4x4_pred_mode(const H264Context *h, H264SliceContext *sl); |
| |
| /** |
| * Check if the top & left blocks are available if needed & change the |
| * dc mode so it only uses the available blocks. |
| */ |
| int ff_h264_check_intra_pred_mode(const H264Context *h, H264SliceContext *sl, |
| int mode, int is_chroma); |
| |
| void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl); |
| int ff_h264_decode_extradata(H264Context *h, const uint8_t *buf, int size); |
| int ff_h264_decode_init(AVCodecContext *avctx); |
| void ff_h264_decode_init_vlc(void); |
| |
| /** |
| * Decode a macroblock |
| * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error |
| */ |
| int ff_h264_decode_mb_cavlc(const H264Context *h, H264SliceContext *sl); |
| |
| /** |
| * Decode a CABAC coded macroblock |
| * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error |
| */ |
| int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl); |
| |
| void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl); |
| |
| void ff_h264_init_dequant_tables(H264Context *h); |
| |
| void ff_h264_direct_dist_scale_factor(const H264Context *const h, H264SliceContext *sl); |
| void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl); |
| void ff_h264_pred_direct_motion(const H264Context *const h, H264SliceContext *sl, |
| int *mb_type); |
| |
| void ff_h264_filter_mb_fast(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y, |
| uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, |
| unsigned int linesize, unsigned int uvlinesize); |
| void ff_h264_filter_mb(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y, |
| uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, |
| unsigned int linesize, unsigned int uvlinesize); |
| |
| /** |
| * Reset SEI values at the beginning of the frame. |
| * |
| * @param h H.264 context. |
| */ |
| void ff_h264_reset_sei(H264Context *h); |
| |
| /** |
| * Get stereo_mode string from the h264 frame_packing_arrangement |
| * @param h H.264 context. |
| */ |
| const char* ff_h264_sei_stereo_mode(H264Context *h); |
| |
| /* |
| * o-o o-o |
| * / / / |
| * o-o o-o |
| * ,---' |
| * o-o o-o |
| * / / / |
| * o-o o-o |
| */ |
| |
| /* Scan8 organization: |
| * 0 1 2 3 4 5 6 7 |
| * 0 DY y y y y y |
| * 1 y Y Y Y Y |
| * 2 y Y Y Y Y |
| * 3 y Y Y Y Y |
| * 4 y Y Y Y Y |
| * 5 DU u u u u u |
| * 6 u U U U U |
| * 7 u U U U U |
| * 8 u U U U U |
| * 9 u U U U U |
| * 10 DV v v v v v |
| * 11 v V V V V |
| * 12 v V V V V |
| * 13 v V V V V |
| * 14 v V V V V |
| * DY/DU/DV are for luma/chroma DC. |
| */ |
| |
| #define LUMA_DC_BLOCK_INDEX 48 |
| #define CHROMA_DC_BLOCK_INDEX 49 |
| |
| // This table must be here because scan8[constant] must be known at compiletime |
| static const uint8_t scan8[16 * 3 + 3] = { |
| 4 + 1 * 8, 5 + 1 * 8, 4 + 2 * 8, 5 + 2 * 8, |
| 6 + 1 * 8, 7 + 1 * 8, 6 + 2 * 8, 7 + 2 * 8, |
| 4 + 3 * 8, 5 + 3 * 8, 4 + 4 * 8, 5 + 4 * 8, |
| 6 + 3 * 8, 7 + 3 * 8, 6 + 4 * 8, 7 + 4 * 8, |
| 4 + 6 * 8, 5 + 6 * 8, 4 + 7 * 8, 5 + 7 * 8, |
| 6 + 6 * 8, 7 + 6 * 8, 6 + 7 * 8, 7 + 7 * 8, |
| 4 + 8 * 8, 5 + 8 * 8, 4 + 9 * 8, 5 + 9 * 8, |
| 6 + 8 * 8, 7 + 8 * 8, 6 + 9 * 8, 7 + 9 * 8, |
| 4 + 11 * 8, 5 + 11 * 8, 4 + 12 * 8, 5 + 12 * 8, |
| 6 + 11 * 8, 7 + 11 * 8, 6 + 12 * 8, 7 + 12 * 8, |
| 4 + 13 * 8, 5 + 13 * 8, 4 + 14 * 8, 5 + 14 * 8, |
| 6 + 13 * 8, 7 + 13 * 8, 6 + 14 * 8, 7 + 14 * 8, |
| 0 + 0 * 8, 0 + 5 * 8, 0 + 10 * 8 |
| }; |
| |
| static av_always_inline uint32_t pack16to32(unsigned a, unsigned b) |
| { |
| #if HAVE_BIGENDIAN |
| return (b & 0xFFFF) + (a << 16); |
| #else |
| return (a & 0xFFFF) + (b << 16); |
| #endif |
| } |
| |
| static av_always_inline uint16_t pack8to16(unsigned a, unsigned b) |
| { |
| #if HAVE_BIGENDIAN |
| return (b & 0xFF) + (a << 8); |
| #else |
| return (a & 0xFF) + (b << 8); |
| #endif |
| } |
| |
| /** |
| * Get the chroma qp. |
| */ |
| static av_always_inline int get_chroma_qp(const H264Context *h, int t, int qscale) |
| { |
| return h->pps.chroma_qp_table[t][qscale]; |
| } |
| |
| /** |
| * Get the predicted intra4x4 prediction mode. |
| */ |
| static av_always_inline int pred_intra_mode(const H264Context *h, |
| H264SliceContext *sl, int n) |
| { |
| const int index8 = scan8[n]; |
| const int left = sl->intra4x4_pred_mode_cache[index8 - 1]; |
| const int top = sl->intra4x4_pred_mode_cache[index8 - 8]; |
| const int min = FFMIN(left, top); |
| |
| ff_tlog(h->avctx, "mode:%d %d min:%d\n", left, top, min); |
| |
| if (min < 0) |
| return DC_PRED; |
| else |
| return min; |
| } |
| |
| static av_always_inline void write_back_intra_pred_mode(const H264Context *h, |
| H264SliceContext *sl) |
| { |
| int8_t *i4x4 = sl->intra4x4_pred_mode + h->mb2br_xy[sl->mb_xy]; |
| int8_t *i4x4_cache = sl->intra4x4_pred_mode_cache; |
| |
| AV_COPY32(i4x4, i4x4_cache + 4 + 8 * 4); |
| i4x4[4] = i4x4_cache[7 + 8 * 3]; |
| i4x4[5] = i4x4_cache[7 + 8 * 2]; |
| i4x4[6] = i4x4_cache[7 + 8 * 1]; |
| } |
| |
| static av_always_inline void write_back_non_zero_count(const H264Context *h, |
| H264SliceContext *sl) |
| { |
| const int mb_xy = sl->mb_xy; |
| uint8_t *nnz = h->non_zero_count[mb_xy]; |
| uint8_t *nnz_cache = sl->non_zero_count_cache; |
| |
| AV_COPY32(&nnz[ 0], &nnz_cache[4 + 8 * 1]); |
| AV_COPY32(&nnz[ 4], &nnz_cache[4 + 8 * 2]); |
| AV_COPY32(&nnz[ 8], &nnz_cache[4 + 8 * 3]); |
| AV_COPY32(&nnz[12], &nnz_cache[4 + 8 * 4]); |
| AV_COPY32(&nnz[16], &nnz_cache[4 + 8 * 6]); |
| AV_COPY32(&nnz[20], &nnz_cache[4 + 8 * 7]); |
| AV_COPY32(&nnz[32], &nnz_cache[4 + 8 * 11]); |
| AV_COPY32(&nnz[36], &nnz_cache[4 + 8 * 12]); |
| |
| if (!h->chroma_y_shift) { |
| AV_COPY32(&nnz[24], &nnz_cache[4 + 8 * 8]); |
| AV_COPY32(&nnz[28], &nnz_cache[4 + 8 * 9]); |
| AV_COPY32(&nnz[40], &nnz_cache[4 + 8 * 13]); |
| AV_COPY32(&nnz[44], &nnz_cache[4 + 8 * 14]); |
| } |
| } |
| |
| static av_always_inline void write_back_motion_list(const H264Context *h, |
| H264SliceContext *sl, |
| int b_stride, |
| int b_xy, int b8_xy, |
| int mb_type, int list) |
| { |
| int16_t(*mv_dst)[2] = &h->cur_pic.motion_val[list][b_xy]; |
| int16_t(*mv_src)[2] = &sl->mv_cache[list][scan8[0]]; |
| AV_COPY128(mv_dst + 0 * b_stride, mv_src + 8 * 0); |
| AV_COPY128(mv_dst + 1 * b_stride, mv_src + 8 * 1); |
| AV_COPY128(mv_dst + 2 * b_stride, mv_src + 8 * 2); |
| AV_COPY128(mv_dst + 3 * b_stride, mv_src + 8 * 3); |
| if (CABAC(h)) { |
| uint8_t (*mvd_dst)[2] = &sl->mvd_table[list][FMO ? 8 * sl->mb_xy |
| : h->mb2br_xy[sl->mb_xy]]; |
| uint8_t(*mvd_src)[2] = &sl->mvd_cache[list][scan8[0]]; |
| if (IS_SKIP(mb_type)) { |
| AV_ZERO128(mvd_dst); |
| } else { |
| AV_COPY64(mvd_dst, mvd_src + 8 * 3); |
| AV_COPY16(mvd_dst + 3 + 3, mvd_src + 3 + 8 * 0); |
| AV_COPY16(mvd_dst + 3 + 2, mvd_src + 3 + 8 * 1); |
| AV_COPY16(mvd_dst + 3 + 1, mvd_src + 3 + 8 * 2); |
| } |
| } |
| |
| { |
| int8_t *ref_index = &h->cur_pic.ref_index[list][b8_xy]; |
| int8_t *ref_cache = sl->ref_cache[list]; |
| ref_index[0 + 0 * 2] = ref_cache[scan8[0]]; |
| ref_index[1 + 0 * 2] = ref_cache[scan8[4]]; |
| ref_index[0 + 1 * 2] = ref_cache[scan8[8]]; |
| ref_index[1 + 1 * 2] = ref_cache[scan8[12]]; |
| } |
| } |
| |
| static av_always_inline void write_back_motion(const H264Context *h, |
| H264SliceContext *sl, |
| int mb_type) |
| { |
| const int b_stride = h->b_stride; |
| const int b_xy = 4 * sl->mb_x + 4 * sl->mb_y * h->b_stride; // try mb2b(8)_xy |
| const int b8_xy = 4 * sl->mb_xy; |
| |
| if (USES_LIST(mb_type, 0)) { |
| write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 0); |
| } else { |
| fill_rectangle(&h->cur_pic.ref_index[0][b8_xy], |
| 2, 2, 2, (uint8_t)LIST_NOT_USED, 1); |
| } |
| if (USES_LIST(mb_type, 1)) |
| write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 1); |
| |
| if (sl->slice_type_nos == AV_PICTURE_TYPE_B && CABAC(h)) { |
| if (IS_8X8(mb_type)) { |
| uint8_t *direct_table = &h->direct_table[4 * sl->mb_xy]; |
| direct_table[1] = sl->sub_mb_type[1] >> 1; |
| direct_table[2] = sl->sub_mb_type[2] >> 1; |
| direct_table[3] = sl->sub_mb_type[3] >> 1; |
| } |
| } |
| } |
| |
| static av_always_inline int get_dct8x8_allowed(const H264Context *h, H264SliceContext *sl) |
| { |
| if (h->sps.direct_8x8_inference_flag) |
| return !(AV_RN64A(sl->sub_mb_type) & |
| ((MB_TYPE_16x8 | MB_TYPE_8x16 | MB_TYPE_8x8) * |
| 0x0001000100010001ULL)); |
| else |
| return !(AV_RN64A(sl->sub_mb_type) & |
| ((MB_TYPE_16x8 | MB_TYPE_8x16 | MB_TYPE_8x8 | MB_TYPE_DIRECT2) * |
| 0x0001000100010001ULL)); |
| } |
| |
| static inline int find_start_code(const uint8_t *buf, int buf_size, |
| int buf_index, int next_avc) |
| { |
| uint32_t state = -1; |
| |
| buf_index = avpriv_find_start_code(buf + buf_index, buf + next_avc + 1, &state) - buf - 1; |
| |
| return FFMIN(buf_index, buf_size); |
| } |
| |
| static inline int get_avc_nalsize(H264Context *h, const uint8_t *buf, |
| int buf_size, int *buf_index) |
| { |
| int i, nalsize = 0; |
| |
| if (*buf_index >= buf_size - h->nal_length_size) { |
| // the end of the buffer is reached, refill it. |
| return AVERROR(EAGAIN); |
| } |
| |
| for (i = 0; i < h->nal_length_size; i++) |
| nalsize = ((unsigned)nalsize << 8) | buf[(*buf_index)++]; |
| if (nalsize <= 0 || nalsize > buf_size - *buf_index) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "AVC: nal size %d\n", nalsize); |
| return AVERROR_INVALIDDATA; |
| } |
| return nalsize; |
| } |
| |
| int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup); |
| |
| int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src); |
| void ff_h264_unref_picture(H264Context *h, H264Picture *pic); |
| |
| int ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl); |
| |
| void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height); |
| int ff_init_poc(H264Context *h, int pic_field_poc[2], int *pic_poc); |
| int ff_pred_weight_table(H264Context *h, H264SliceContext *sl); |
| int ff_set_ref_count(H264Context *h, H264SliceContext *sl); |
| |
| int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl); |
| #define SLICE_SINGLETHREAD 1 |
| #define SLICE_SKIPED 2 |
| |
| int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count); |
| int ff_h264_update_thread_context(AVCodecContext *dst, |
| const AVCodecContext *src); |
| |
| void ff_h264_flush_change(H264Context *h); |
| |
| void ff_h264_free_tables(H264Context *h); |
| |
| void ff_h264_set_erpic(ERPicture *dst, H264Picture *src); |
| |
| #endif /* AVCODEC_H264_H */ |
