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a064d34a32
Many of the fields of MpegEncContext (which is also used by decoders)
are actually only used by encoders. Therefore this commit adds
a new encoder-only structure and moves all of the encoder-only
fields to it except for those which require more explicit
synchronisation between the main slice context and the other
slice contexts. This synchronisation is currently mainly provided
by ff_update_thread_context() which simply copies most of
the main slice context over the other slice contexts. Fields
which are moved to the new MPVEncContext no longer participate
in this (which is desired, because it is horrible and for the
fields b) below wasteful) which means that some fields can only
be moved when explicit synchronisation code is added in later commits.
More explicitly, this commit moves the following fields:
a) Fields not copied by ff_update_duplicate_context():
dct_error_sum and dct_count; the former does not need synchronisation,
the latter is synchronised in merge_context_after_encode().
b) Fields which do not change after initialisation (these fields
could also be put into MPVMainEncContext at the cost of
an indirection to access them): lambda_table, adaptive_quant,
{luma,chroma}_elim_threshold, new_pic, fdsp, mpvencdsp, pdsp,
{p,b_forw,b_back,b_bidir_forw,b_bidir_back,b_direct,b_field}_mv_table,
[pb]_field_select_table, mb_{type,var,mean}, mc_mb_var, {min,max}_qcoeff,
{inter,intra}_quant_bias, ac_esc_length, the *_vlc_length fields,
the q_{intra,inter,chroma_intra}_matrix{,16}, dct_offset, mb_info,
mjpeg_ctx, rtp_mode, rtp_payload_size, encode_mb, all function
pointers, mpv_flags, quantizer_noise_shaping,
frame_reconstruction_bitfield, error_rate and intra_penalty.
c) Fields which are already (re)set explicitly: The PutBitContexts
pb, tex_pb, pb2; dquant, skipdct, encoding_error, the statistics
fields {mv,i_tex,p_tex,misc,last}_bits and i_count; last_mv_dir,
esc_pos (reset when writing the header).
d) Fields which are only used by encoders not supporting slice
threading for which synchronisation doesn't matter: esc3_level_length
and the remaining mb_info fields.
e) coded_score: This field is only really used when FF_MPV_FLAG_CBP_RD
is set (which implies trellis) and even then it is only used for
non-intra blocks. For these blocks dct_quantize_trellis_c() either
sets coded_score[n] or returns a last_non_zero value of -1
in which case coded_score will be reset in encode_mb_internal().
Therefore no old values are ever used.
The MotionEstContext has not been moved yet.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/*
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* VC3/DNxHD encoder structure definitions and prototypes
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* Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
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*
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* VC-3 encoder funded by the British Broadcasting Corporation
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_DNXHDENC_H
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#define AVCODEC_DNXHDENC_H
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#include <stdint.h>
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#include "libavutil/mem_internal.h"
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#include "mpegvideoenc.h"
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#include "dnxhddata.h"
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typedef struct RCCMPEntry {
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uint32_t mb;
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int value;
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} RCCMPEntry;
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typedef struct RCEntry {
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int ssd;
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int bits;
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} RCEntry;
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typedef struct DNXHDEncContext {
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AVClass *class;
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MPVEncContext m; ///< Used for quantization dsp functions
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int cid;
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int profile;
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int bit_depth;
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int is_444;
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const CIDEntry *cid_table;
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uint8_t *msip; ///< Macroblock Scan Indexes Payload
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uint32_t *slice_size;
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uint32_t *slice_offs;
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struct DNXHDEncContext *thread[MAX_THREADS];
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// Because our samples are either 8 or 16 bits for 8-bit and 10-bit
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// encoding respectively, these refer either to bytes or to two-byte words.
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unsigned dct_y_offset;
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unsigned dct_uv_offset;
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unsigned block_width_l2;
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int frame_size;
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int coding_unit_size;
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int data_offset;
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int interlaced;
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int cur_field;
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int nitris_compat;
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unsigned min_padding;
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int intra_quant_bias;
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DECLARE_ALIGNED(32, int16_t, blocks)[12][64];
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DECLARE_ALIGNED(16, uint8_t, edge_buf_y)[512]; // has to hold 16x16 uint16 when depth=10
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DECLARE_ALIGNED(16, uint8_t, edge_buf_uv)[2][512]; // has to hold 16x16 uint16_t when depth=10
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int (*qmatrix_c) [64];
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int (*qmatrix_l) [64];
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uint16_t (*qmatrix_l16)[2][64];
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uint16_t (*qmatrix_c16)[2][64];
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unsigned frame_bits;
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const uint8_t *src[3];
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uint32_t *orig_vlc_codes;
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uint8_t *orig_vlc_bits;
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uint32_t *vlc_codes;
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uint8_t *vlc_bits;
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uint16_t *run_codes;
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uint8_t *run_bits;
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/** Rate control */
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unsigned slice_bits;
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unsigned qscale;
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unsigned lambda;
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uint32_t *mb_bits;
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uint8_t *mb_qscale;
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RCCMPEntry *mb_cmp;
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RCCMPEntry *mb_cmp_tmp;
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RCEntry *mb_rc;
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void (*get_pixels_8x4_sym)(int16_t *restrict /* align 16 */ block,
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const uint8_t *pixels, ptrdiff_t line_size);
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} DNXHDEncContext;
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void ff_dnxhdenc_init(DNXHDEncContext *ctx);
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void ff_dnxhdenc_init_x86(DNXHDEncContext *ctx);
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#endif /* AVCODEC_DNXHDENC_H */
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