FFmpeg
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H.264 / AVC / MPEG4 part10 codec. More...
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/timer.h"
#include "internal.h"
#include "cabac.h"
#include "cabac_functions.h"
#include "error_resilience.h"
#include "avcodec.h"
#include "h264.h"
#include "h264data.h"
#include "h264chroma.h"
#include "h264_mvpred.h"
#include "golomb.h"
#include "mathops.h"
#include "mpegutils.h"
#include "rectangle.h"
#include "thread.h"
Go to the source code of this file.
Macros | |
#define | IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size)))) |
#define | REBASE_PICTURE(pic, new_ctx, old_ctx) |
#define | copy_fields(to, from, start_field, end_field) |
#define | TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF) |
#define | TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3) |
Functions | |
static void | release_unused_pictures (H264Context *h, int remove_current) |
static int | alloc_scratch_buffers (H264Context *h, int linesize) |
static int | init_table_pools (H264Context *h) |
static int | alloc_picture (H264Context *h, H264Picture *pic) |
static int | pic_is_unused (H264Context *h, H264Picture *pic) |
static int | find_unused_picture (H264Context *h) |
static void | init_dequant8_coeff_table (H264Context *h) |
static void | init_dequant4_coeff_table (H264Context *h) |
void | h264_init_dequant_tables (H264Context *h) |
static void | clone_tables (H264Context *dst, H264Context *src, int i) |
Mimic alloc_tables(), but for every context thread. | |
static void | copy_picture_range (H264Picture **to, H264Picture **from, int count, H264Context *new_base, H264Context *old_base) |
static int | copy_parameter_set (void **to, void **from, int count, int size) |
static int | h264_slice_header_init (H264Context *h, int reinit) |
int | ff_h264_update_thread_context (AVCodecContext *dst, const AVCodecContext *src) |
static int | h264_frame_start (H264Context *h) |
static av_always_inline void | backup_mb_border (H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int simple) |
static void | implicit_weight_table (H264Context *h, int field) |
Initialize implicit_weight table. | |
static void | init_scan_tables (H264Context *h) |
initialize scan tables | |
static int | clone_slice (H264Context *dst, H264Context *src) |
Replicate H264 "master" context to thread contexts. | |
static enum AVPixelFormat | get_pixel_format (H264Context *h, int force_callback) |
static int | init_dimensions (H264Context *h) |
static enum AVPixelFormat | non_j_pixfmt (enum AVPixelFormat a) |
int | ff_h264_decode_slice_header (H264Context *h, H264Context *h0) |
Decode a slice header. | |
int | ff_h264_get_slice_type (const H264Context *h) |
Reconstruct bitstream slice_type. | |
static av_always_inline void | fill_filter_caches_inter (H264Context *h, int mb_type, int top_xy, int left_xy[LEFT_MBS], int top_type, int left_type[LEFT_MBS], int mb_xy, int list) |
static int | fill_filter_caches (H264Context *h, int mb_type) |
static void | loop_filter (H264Context *h, int start_x, int end_x) |
static void | predict_field_decoding_flag (H264Context *h) |
static void | decode_finish_row (H264Context *h) |
Draw edges and report progress for the last MB row. | |
static void | er_add_slice (H264Context *h, int startx, int starty, int endx, int endy, int status) |
static int | decode_slice (struct AVCodecContext *avctx, void *arg) |
int | ff_h264_execute_decode_slices (H264Context *h, unsigned context_count) |
Call decode_slice() for each context. | |
Variables | |
static const uint8_t | rem6 [QP_MAX_NUM+1] |
static const uint8_t | div6 [QP_MAX_NUM+1] |
static const uint8_t | field_scan [16+1] |
static const uint8_t | field_scan8x8 [64+1] |
static const uint8_t | field_scan8x8_cavlc [64+1] |
static const uint8_t | zigzag_scan8x8_cavlc [64+1] |
static const uint8_t | dequant4_coeff_init [6][3] |
static const uint8_t | dequant8_coeff_init_scan [16] |
static const uint8_t | dequant8_coeff_init [6][6] |
static enum AVPixelFormat | h264_hwaccel_pixfmt_list_420 [] |
static enum AVPixelFormat | h264_hwaccel_pixfmt_list_jpeg_420 [] |
H.264 / AVC / MPEG4 part10 codec.
Definition in file h264_slice.c.
Definition at line 445 of file h264_slice.c.
Referenced by copy_picture_range().
#define REBASE_PICTURE | ( | pic, | |
new_ctx, | |||
old_ctx | |||
) |
Definition at line 447 of file h264_slice.c.
Referenced by copy_picture_range(), ff_h264_update_thread_context(), and ff_mpeg_update_thread_context().
Definition at line 487 of file h264_slice.c.
Referenced by ff_h264_update_thread_context(), update_context_from_user(), and vp3_update_thread_context().
#define TRANSPOSE | ( | x | ) | ((x) >> 2) | (((x) << 2) & 0xF) |
Referenced by avfilter_register_all(), ff_vp56_init_context(), init_scan_tables(), and vp3_decode_init().
#define TRANSPOSE | ( | x | ) | ((x) >> 3) | (((x) & 7) << 3) |
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Definition at line 187 of file h264_slice.c.
Referenced by ff_h264_decode_slice_header(), and h264_frame_start().
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Definition at line 200 of file h264_slice.c.
Referenced by ff_h264_decode_slice_header().
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Definition at line 221 of file h264_slice.c.
Referenced by alloc_picture().
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Definition at line 248 of file h264_slice.c.
Referenced by h264_frame_start().
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Definition at line 319 of file h264_slice.c.
Referenced by find_unused_picture().
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Definition at line 328 of file h264_slice.c.
Referenced by h264_frame_start().
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Definition at line 348 of file h264_slice.c.
Referenced by h264_init_dequant_tables().
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Definition at line 375 of file h264_slice.c.
Referenced by h264_init_dequant_tables().
void h264_init_dequant_tables | ( | H264Context * | h | ) |
Definition at line 401 of file h264_slice.c.
Referenced by ff_h264_alloc_tables(), and ff_h264_decode_slice_header().
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Mimic alloc_tables(), but for every context thread.
Definition at line 423 of file h264_slice.c.
Referenced by h264_slice_header_init().
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Definition at line 452 of file h264_slice.c.
Referenced by ff_h264_update_thread_context().
Definition at line 467 of file h264_slice.c.
Referenced by ff_h264_update_thread_context().
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Definition at line 1150 of file h264_slice.c.
Referenced by ff_h264_decode_slice_header(), and ff_h264_update_thread_context().
int ff_h264_update_thread_context | ( | AVCodecContext * | dst, |
const AVCodecContext * | src | ||
) |
Definition at line 493 of file h264_slice.c.
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Definition at line 708 of file h264_slice.c.
Referenced by ff_h264_decode_slice_header().
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Definition at line 799 of file h264_slice.c.
Referenced by loop_filter().
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Initialize implicit_weight table.
field | 0/1 initialize the weight for interlaced MBAFF -1 initializes the rest |
Definition at line 900 of file h264_slice.c.
Referenced by ff_h264_decode_slice_header().
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initialize scan tables
Definition at line 964 of file h264_slice.c.
Referenced by h264_slice_header_init().
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Replicate H264 "master" context to thread contexts.
Definition at line 1001 of file h264_slice.c.
Referenced by ff_h264_decode_slice_header().
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Definition at line 1026 of file h264_slice.c.
Referenced by ff_h264_decode_slice_header().
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Definition at line 1108 of file h264_slice.c.
Referenced by ff_h264_decode_slice_header().
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Definition at line 1258 of file h264_slice.c.
Referenced by ff_h264_decode_slice_header().
int ff_h264_decode_slice_header | ( | H264Context * | h, |
H264Context * | h0 | ||
) |
Decode a slice header.
This will (re)intialize the decoder and call h264_frame_start() as needed.
h | h264context |
h0 | h264 master context (differs from 'h' when doing sliced based parallel decoding) |
Definition at line 1279 of file h264_slice.c.
Referenced by decode_nal_units().
int ff_h264_get_slice_type | ( | const H264Context * | h | ) |
Reconstruct bitstream slice_type.
Definition at line 1995 of file h264_slice.c.
Referenced by fill_slice_long(), and vaapi_h264_decode_slice().
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Definition at line 2013 of file h264_slice.c.
Referenced by fill_filter_caches().
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Definition at line 2097 of file h264_slice.c.
Referenced by loop_filter().
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Definition at line 2242 of file h264_slice.c.
Referenced by decode_slice(), and xmv_read_extradata().
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Definition at line 2311 of file h264_slice.c.
Referenced by decode_slice().
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Draw edges and report progress for the last MB row.
Definition at line 2324 of file h264_slice.c.
Referenced by decode_slice().
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Definition at line 2355 of file h264_slice.c.
Referenced by decode_slice().
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Definition at line 2365 of file h264_slice.c.
Referenced by ff_h264_execute_decode_slices().
int ff_h264_execute_decode_slices | ( | H264Context * | h, |
unsigned | context_count | ||
) |
Call decode_slice() for each context.
h | h264 master context |
context_count | number of contexts to execute |
Definition at line 2544 of file h264_slice.c.
Referenced by decode_nal_units().
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Definition at line 47 of file h264_slice.c.
Referenced by ff_hevc_hls_residual_coding(), init_dequant4_coeff_table(), and init_dequant8_coeff_table().
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Definition at line 55 of file h264_slice.c.
Referenced by ff_hevc_hls_residual_coding(), init_dequant4_coeff_table(), and init_dequant8_coeff_table().
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Definition at line 63 of file h264_slice.c.
Referenced by init_scan_tables().
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Definition at line 70 of file h264_slice.c.
Referenced by init_scan_tables().
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Definition at line 89 of file h264_slice.c.
Referenced by init_scan_tables().
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Definition at line 109 of file h264_slice.c.
Referenced by init_scan_tables().
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Definition at line 128 of file h264_slice.c.
Referenced by init_dequant4_coeff_table().
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Definition at line 137 of file h264_slice.c.
Referenced by init_dequant8_coeff_table().
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Definition at line 141 of file h264_slice.c.
Referenced by init_dequant8_coeff_table().
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Definition at line 150 of file h264_slice.c.
Referenced by get_pixel_format().
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Definition at line 168 of file h264_slice.c.
Referenced by get_pixel_format().