28 #ifndef AVCODEC_H264DEC_H 29 #define AVCODEC_H264DEC_H 52 #define H264_MAX_PICTURE_COUNT 32 54 #define MAX_MMCO_COUNT 66 56 #define MAX_DELAYED_PIC_COUNT 16 60 #define ALLOW_INTERLACE 70 #ifdef ALLOW_INTERLACE 71 #define MB_MBAFF(h) h->mb_mbaff 72 #define MB_FIELD(h) h->mb_field_decoding_flag 73 #define FRAME_MBAFF(h) h->mb_aff_frame 74 #define FIELD_PICTURE(h) (h->picture_structure != PICT_FRAME) 82 #define FRAME_MBAFF(h) 0 83 #define FIELD_PICTURE(h) 0 85 #define IS_INTERLACED(mb_type) 0 91 #define FIELD_OR_MBAFF_PICTURE(h) (FRAME_MBAFF(h) || FIELD_PICTURE(h)) 94 #define CABAC(h) h->ps.pps->cabac 97 #define CHROMA422(h) (h->ps.sps->chroma_format_idc == 2) 98 #define CHROMA444(h) (h->ps.sps->chroma_format_idc == 3) 100 #define MB_TYPE_REF0 MB_TYPE_ACPRED // dirty but it fits in 16 bit 101 #define MB_TYPE_8x8DCT 0x01000000 102 #define IS_REF0(a) ((a) & MB_TYPE_REF0) 103 #define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT) 135 int16_t (*motion_val[2])[2];
144 int8_t *ref_index[2];
154 int ref_poc[2][2][32];
202 int8_t intra4x4_pred_mode_cache[5 * 8];
256 int dist_scale_factor[32];
257 int dist_scale_factor_field[2][32];
258 int map_col_to_list0[2][16 + 32];
259 int map_col_to_list0_field[2][2][16 + 32];
264 unsigned int ref_count[2];
272 } ref_modifications[2][32];
273 int nb_ref_modifications[2];
285 int top_borders_allocated[2];
308 int16_t mb_padding[256 * 2];
376 int8_t(*intra4x4_pred_mode);
381 #define LIST_NOT_USED -1 // FIXME rename? 382 #define PART_NOT_AVAILABLE -2 388 int block_offset[2 * (16 * 3)];
498 #define FRAME_RECOVERED_IDR (1 << 0) 503 #define FRAME_RECOVERED_SEI (1 << 1) 583 unsigned int linesize,
unsigned int uvlinesize);
586 unsigned int linesize,
unsigned int uvlinesize);
618 #define LUMA_DC_BLOCK_INDEX 48 619 #define CHROMA_DC_BLOCK_INDEX 49 623 4 + 1 * 8, 5 + 1 * 8, 4 + 2 * 8, 5 + 2 * 8,
624 6 + 1 * 8, 7 + 1 * 8, 6 + 2 * 8, 7 + 2 * 8,
625 4 + 3 * 8, 5 + 3 * 8, 4 + 4 * 8, 5 + 4 * 8,
626 6 + 3 * 8, 7 + 3 * 8, 6 + 4 * 8, 7 + 4 * 8,
627 4 + 6 * 8, 5 + 6 * 8, 4 + 7 * 8, 5 + 7 * 8,
628 6 + 6 * 8, 7 + 6 * 8, 6 + 7 * 8, 7 + 7 * 8,
629 4 + 8 * 8, 5 + 8 * 8, 4 + 9 * 8, 5 + 9 * 8,
630 6 + 8 * 8, 7 + 8 * 8, 6 + 9 * 8, 7 + 9 * 8,
631 4 + 11 * 8, 5 + 11 * 8, 4 + 12 * 8, 5 + 12 * 8,
632 6 + 11 * 8, 7 + 11 * 8, 6 + 12 * 8, 7 + 12 * 8,
633 4 + 13 * 8, 5 + 13 * 8, 4 + 14 * 8, 5 + 14 * 8,
634 6 + 13 * 8, 7 + 13 * 8, 6 + 14 * 8, 7 + 14 * 8,
635 0 + 0 * 8, 0 + 5 * 8, 0 + 10 * 8
641 return (b & 0xFFFF) + (a << 16);
643 return (a & 0xFFFF) + (b << 16);
650 return (b & 0xFF) + (a << 8);
652 return (a & 0xFF) + (b << 8);
670 const int index8 =
scan8[n];
675 ff_tlog(h->
avctx,
"mode:%d %d min:%d\n", left, top, min);
690 i4x4[4] = i4x4_cache[7 + 8 * 3];
691 i4x4[5] = i4x4_cache[7 + 8 * 2];
692 i4x4[6] = i4x4_cache[7 + 8 * 1];
698 const int mb_xy = sl->
mb_xy;
702 AV_COPY32(&nnz[ 0], &nnz_cache[4 + 8 * 1]);
703 AV_COPY32(&nnz[ 4], &nnz_cache[4 + 8 * 2]);
704 AV_COPY32(&nnz[ 8], &nnz_cache[4 + 8 * 3]);
705 AV_COPY32(&nnz[12], &nnz_cache[4 + 8 * 4]);
706 AV_COPY32(&nnz[16], &nnz_cache[4 + 8 * 6]);
707 AV_COPY32(&nnz[20], &nnz_cache[4 + 8 * 7]);
708 AV_COPY32(&nnz[32], &nnz_cache[4 + 8 * 11]);
709 AV_COPY32(&nnz[36], &nnz_cache[4 + 8 * 12]);
712 AV_COPY32(&nnz[24], &nnz_cache[4 + 8 * 8]);
713 AV_COPY32(&nnz[28], &nnz_cache[4 + 8 * 9]);
714 AV_COPY32(&nnz[40], &nnz_cache[4 + 8 * 13]);
715 AV_COPY32(&nnz[44], &nnz_cache[4 + 8 * 14]);
723 int mb_type,
int list)
727 AV_COPY128(mv_dst + 0 * b_stride, mv_src + 8 * 0);
728 AV_COPY128(mv_dst + 1 * b_stride, mv_src + 8 * 1);
729 AV_COPY128(mv_dst + 2 * b_stride, mv_src + 8 * 2);
730 AV_COPY128(mv_dst + 3 * b_stride, mv_src + 8 * 3);
739 AV_COPY16(mvd_dst + 3 + 3, mvd_src + 3 + 8 * 0);
740 AV_COPY16(mvd_dst + 3 + 2, mvd_src + 3 + 8 * 1);
741 AV_COPY16(mvd_dst + 3 + 1, mvd_src + 3 + 8 * 2);
748 ref_index[0 + 0 * 2] = ref_cache[
scan8[0]];
749 ref_index[1 + 0 * 2] = ref_cache[scan8[4]];
750 ref_index[0 + 1 * 2] = ref_cache[scan8[8]];
751 ref_index[1 + 1 * 2] = ref_cache[scan8[12]];
761 const int b8_xy = 4 * sl->
mb_xy;
787 0x0001000100010001ULL));
791 0x0001000100010001ULL));
void ff_h264_decode_init_vlc(void)
struct H264Context * h264
const uint8_t * left_block
Memory management control operation.
int long_ref
1->long term reference 0->short term reference
int ff_h264_decode_ref_pic_marking(H264SliceContext *sl, GetBitContext *gb, const H2645NAL *nal, void *logctx)
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)
This structure describes decoded (raw) audio or video data.
int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src)
int16_t mv_cache[2][5 *8][2]
Motion vector cache.
int neighbor_transform_size
number of neighbors (top and/or left) that used 8x8 dct
int edge_emu_buffer_allocated
int ff_h264_execute_ref_pic_marking(H264Context *h)
Execute the reference picture marking (memory management control operations).
int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl)
Decode a CABAC coded macroblock.
int ff_h264_build_ref_list(const H264Context *h, H264SliceContext *sl)
static av_always_inline int get_chroma_qp(const PPS *pps, int t, int qscale)
Get the chroma qp.
static const uint8_t zigzag_scan8x8_cavlc[64]
unsigned int topleft_samples_available
H264ChromaContext h264chroma
uint8_t mvd_cache[2][5 *8][2]
AVBufferRef * mb_type_buf
int bipred_scratchpad_allocated
AVBufferPool * mb_type_pool
int ff_h264_alloc_tables(H264Context *h)
Allocate tables.
#define DECLARE_ALIGNED(n, t, v)
int16_t(*[2] motion_val)[2]
const uint8_t * field_scan8x8_q0
int is_avc
Used to parse AVC variant of H.264.
void ff_h264_unref_picture(H264Context *h, H264Picture *pic)
AVBufferPool * ref_index_pool
static const uint8_t field_scan8x8_cavlc[64]
uint8_t * chroma_pred_mode_table
int ff_h264_execute_decode_slices(H264Context *h)
Call decode_slice() for each context.
#define USES_LIST(a, list)
uint16_t sub_mb_type[4]
as a DCT coefficient is int32_t in high depth, we need to reserve twice the space.
void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height)
int short_pic_num
pic_num without wrapping (pic_num & max_pic_num)
void ff_h264_direct_dist_scale_factor(const H264Context *const h, H264SliceContext *sl)
int slice_alpha_c0_offset
int field_picture
whether or not picture was encoded in separate fields
void ff_h264_flush_change(H264Context *h)
Context for storing H.264 prediction functions.
void ff_h264_remove_all_refs(H264Context *h)
int frame_recovered
Initial frame has been completely recovered.
uint8_t chroma_qp_table[2][64]
pre-scaled (with chroma_qp_index_offset) version of qp_table
static av_always_inline int pred_intra_mode(const H264Context *h, H264SliceContext *sl, int n)
Get the predicted intra4x4 prediction mode.
AVBufferRef * qscale_table_buf
int recovered
picture at IDR or recovery point + recovery count
static av_always_inline void write_back_motion(const H264Context *h, H264SliceContext *sl, int mb_type)
const uint8_t * zigzag_scan8x8_cavlc_q0
unsigned int topright_samples_available
H.264 parameter set handling.
int ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl)
Init context Allocate buffers which are not shared amongst multiple threads.
void ff_h264_pred_direct_motion(const H264Context *const h, H264SliceContext *sl, int *mb_type)
const uint8_t * zigzag_scan_q0
void * hwaccel_picture_private
hardware accelerator private data
int8_t intra4x4_pred_mode_cache[5 *8]
int deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
int prev_interlaced_frame
Complement sei_pic_struct SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced...
int direct_spatial_mv_pred
unsigned int top_samples_available
int frame_num
frame_num (raw frame_num from slice header)
MMCOOpcode
Memory management control operation opcode.
int ff_h264_decode_ref_pic_list_reordering(H264SliceContext *sl, void *logctx)
static const uint8_t field_scan8x8[64]
uint8_t * list_counts
Array of list_count per MB specifying the slice type.
int ff_h264_get_slice_type(const H264SliceContext *sl)
Reconstruct bitstream slice_type.
int slice_type_nos
S free slice type (SI/SP are remapped to I/P)
AVBufferRef * hwaccel_priv_buf
void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl)
static av_always_inline uint16_t pack8to16(int a, int b)
static av_always_inline int get_dct8x8_allowed(const H264Context *h, H264SliceContext *sl)
int nal_length_size
Number of bytes used for nal length (1, 2 or 4)
useful rectangle filling function
static const uint8_t field_scan[16]
void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl)
Context for storing H.264 DSP functions.
uint16_t * slice_table
slice_table_base + 2*mb_stride + 1
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)
unsigned int first_mb_addr
int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup)
int long_ref_count
number of actual long term references
int ff_h264_decode_mb_cavlc(const H264Context *h, H264SliceContext *sl)
Decode a macroblock.
static void fill_rectangle(SDL_Surface *screen, int x, int y, int w, int h, int color)
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
Submit a slice for decoding.
H264SliceContext * slice_ctx
int direct_8x8_inference_flag
const uint16_t ff_h264_mb_sizes[4]
const uint8_t * zigzag_scan8x8_q0
uint8_t * edge_emu_buffer
int bit_depth_luma
luma bit depth from sps to detect changes
int chroma_format_idc
chroma format from sps to detect changes
#define MAX_DELAYED_PIC_COUNT
int recovery_frame
recovery_frame is the frame_num at which the next frame should be fully constructed.
main external API structure.
int qp_thresh
QP threshold to skip loopfilter.
static av_always_inline uint32_t pack16to32(int a, int b)
static const uint8_t scan8[16 *3+3]
Describe the class of an AVClass context structure.
const uint8_t * field_scan8x8_cavlc_q0
uint8_t non_zero_count_cache[15 *8]
non zero coeff count cache.
int pixel_shift
0 for 8-bit H.264, 1 for high-bit-depth H.264
int mmco_reset
MMCO_RESET set this 1.
H264Picture * cur_pic_ptr
refcounted data buffer API
int mb_mbaff
mb_aff_frame && mb_field_decoding_flag
ptrdiff_t mb_linesize
may be equal to s->linesize or s->linesize * 2, for mbaff
H.264 / AVC / MPEG-4 prediction functions.
int ff_h264_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl)
int mbaff
1 -> MBAFF frame 0-> not MBAFF
A reference to a data buffer.
AVBufferPool * qscale_table_pool
AVBufferPool * motion_val_pool
static av_always_inline void write_back_non_zero_count(const H264Context *h, H264SliceContext *sl)
int pic_id
pic_num (short -> no wrap version of pic_num, pic_num & max_pic_num; long -> long_pic_num) ...
#define MAX_SLICES
The maximum number of slices supported by the decoder.
common internal api header.
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)
uint16_t * slice_table_base
void ff_h264_free_tables(H264Context *h)
int8_t * intra4x4_pred_mode
int long_arg
index, pic_num, or num long refs depending on opcode
Core video DSP helper functions.
int8_t ref_cache[2][5 *8]
Decoded Picture Buffer (DPB).
int current_slice
current slice number, used to initialize slice_num of each thread/context
const uint8_t * intra_pcm_ptr
const uint8_t * field_scan_q0
unsigned int left_samples_available
uint8_t(*[2] mvd_table)[2]
int8_t * intra4x4_pred_mode
int ff_h264_decode_init(AVCodecContext *avctx)
void ff_h264_init_dequant_tables(H264Context *h)
int mb_field_decoding_flag
uint8_t(* non_zero_count)[48]
H.264 decoder/parser shared code.
uint8_t * bipred_scratchpad
Context Adaptive Binary Arithmetic Coder.
static av_always_inline void write_back_intra_pred_mode(const H264Context *h, H264SliceContext *sl)
#define H264_MAX_PICTURE_COUNT
int short_ref_count
number of actual short term references