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https://github.com/FFmpeg/FFmpeg.git
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24a654c6c9
An offset has the advantage of not needing to be updated when the buffer is reallocated. Furthermore, the way the pointer is currently updated is undefined behaviour in case the pointer is not already set (i.e. when not encoding MPEG-1/2), because it calculates the nonsense NULL - s->pb.buf. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
777 lines
38 KiB
C
777 lines
38 KiB
C
/*
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* Generic DCT based hybrid video encoder
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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* Copyright (c) 2002-2004 Michael Niedermayer
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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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/**
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* @file
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* mpegvideo header.
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*/
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#ifndef AVCODEC_MPEGVIDEO_H
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#define AVCODEC_MPEGVIDEO_H
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#include <float.h>
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#include "avcodec.h"
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#include "blockdsp.h"
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#include "error_resilience.h"
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#include "fdctdsp.h"
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#include "get_bits.h"
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#include "h264chroma.h"
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#include "h263dsp.h"
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#include "hpeldsp.h"
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#include "idctdsp.h"
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#include "internal.h"
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#include "me_cmp.h"
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#include "motion_est.h"
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#include "mpegpicture.h"
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#include "mpegvideodsp.h"
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#include "mpegvideoencdsp.h"
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#include "mpegvideodata.h"
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#include "pixblockdsp.h"
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#include "put_bits.h"
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#include "ratecontrol.h"
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#if FF_API_FLAG_TRUNCATED
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#include "parser.h"
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#endif
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#include "mpegutils.h"
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#include "qpeldsp.h"
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#include "rl.h"
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#include "videodsp.h"
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#include "libavutil/opt.h"
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#define MAX_THREADS 32
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#define MAX_B_FRAMES 16
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/**
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* MpegEncContext.
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*/
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typedef struct MpegEncContext {
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AVClass *class;
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int y_dc_scale, c_dc_scale;
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int ac_pred;
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int block_last_index[12]; ///< last non zero coefficient in block
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int h263_aic; ///< Advanced INTRA Coding (AIC)
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/* scantables */
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ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce the cache usage
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ScanTable intra_scantable;
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ScanTable intra_h_scantable;
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ScanTable intra_v_scantable;
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/* WARNING: changes above this line require updates to hardcoded
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* offsets used in ASM. */
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struct AVCodecContext *avctx;
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/* the following parameters must be initialized before encoding */
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int width, height;///< picture size. must be a multiple of 16
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int gop_size;
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int intra_only; ///< if true, only intra pictures are generated
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int64_t bit_rate; ///< wanted bit rate
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enum OutputFormat out_format; ///< output format
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int h263_pred; ///< use MPEG-4/H.263 ac/dc predictions
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int pb_frame; ///< PB-frame mode (0 = none, 1 = base, 2 = improved)
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/* the following codec id fields are deprecated in favor of codec_id */
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int h263_plus; ///< H.263+ headers
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int h263_flv; ///< use flv H.263 header
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enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
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int fixed_qscale; ///< fixed qscale if non zero
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int encoding; ///< true if we are encoding (vs decoding)
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int max_b_frames; ///< max number of B-frames for encoding
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int luma_elim_threshold;
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int chroma_elim_threshold;
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int strict_std_compliance; ///< strictly follow the std (MPEG-4, ...)
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int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
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int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag
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/* the following fields are managed internally by the encoder */
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/* sequence parameters */
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int context_initialized;
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int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
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int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
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int picture_number; //FIXME remove, unclear definition
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int picture_in_gop_number; ///< 0-> first pic in gop, ...
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int mb_width, mb_height; ///< number of MBs horizontally & vertically
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int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
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int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
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int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
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int mb_num; ///< number of MBs of a picture
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ptrdiff_t linesize; ///< line size, in bytes, may be different from width
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ptrdiff_t uvlinesize; ///< line size, for chroma in bytes, may be different from width
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Picture *picture; ///< main picture buffer
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Picture **input_picture; ///< next pictures on display order for encoding
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Picture **reordered_input_picture; ///< pointer to the next pictures in coded order for encoding
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int64_t user_specified_pts; ///< last non-zero pts from AVFrame which was passed into avcodec_send_frame()
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/**
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* pts difference between the first and second input frame, used for
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* calculating dts of the first frame when there's a delay */
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int64_t dts_delta;
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/**
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* reordered pts to be used as dts for the next output frame when there's
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* a delay */
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int64_t reordered_pts;
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/** bit output */
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PutBitContext pb;
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int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
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int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
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struct MpegEncContext *thread_context[MAX_THREADS];
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int slice_context_count; ///< number of used thread_contexts
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/**
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* copy of the previous picture structure.
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* note, linesize & data, might not match the previous picture (for field pictures)
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*/
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Picture last_picture;
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/**
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* copy of the next picture structure.
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* note, linesize & data, might not match the next picture (for field pictures)
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*/
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Picture next_picture;
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/**
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* copy of the source picture structure for encoding.
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* note, linesize & data, might not match the source picture (for field pictures)
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*/
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Picture new_picture;
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/**
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* copy of the current picture structure.
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* note, linesize & data, might not match the current picture (for field pictures)
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*/
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Picture current_picture; ///< buffer to store the decompressed current picture
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Picture *last_picture_ptr; ///< pointer to the previous picture.
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Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
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Picture *current_picture_ptr; ///< pointer to the current picture
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int last_dc[3]; ///< last DC values for MPEG-1
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int16_t *dc_val_base;
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int16_t *dc_val[3]; ///< used for MPEG-4 DC prediction, all 3 arrays must be continuous
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const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
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const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
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const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (H.263)
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uint8_t *coded_block_base;
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uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
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int16_t (*ac_val_base)[16];
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int16_t (*ac_val[3])[16]; ///< used for MPEG-4 AC prediction, all 3 arrays must be continuous
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int mb_skipped; ///< MUST BE SET only during DECODING
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uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
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and used for B-frame encoding & decoding (contains skip table of next P-frame) */
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uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
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uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
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uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
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ScratchpadContext sc;
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int qscale; ///< QP
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int chroma_qscale; ///< chroma QP
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unsigned int lambda; ///< Lagrange multiplier used in rate distortion
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unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
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int *lambda_table;
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int adaptive_quant; ///< use adaptive quantization
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int dquant; ///< qscale difference to prev qscale
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int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
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int vbv_delay;
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int last_pict_type; //FIXME removes
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int last_non_b_pict_type; ///< used for MPEG-4 gmc B-frames & ratecontrol
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int droppable;
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int last_lambda_for[5]; ///< last lambda for a specific pict type
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int skipdct; ///< skip dct and code zero residual
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/* motion compensation */
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int unrestricted_mv; ///< mv can point outside of the coded picture
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int h263_long_vectors; ///< use horrible H.263v1 long vector mode
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BlockDSPContext bdsp;
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FDCTDSPContext fdsp;
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H264ChromaContext h264chroma;
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HpelDSPContext hdsp;
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IDCTDSPContext idsp;
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MECmpContext mecc;
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MpegVideoDSPContext mdsp;
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MpegvideoEncDSPContext mpvencdsp;
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PixblockDSPContext pdsp;
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QpelDSPContext qdsp;
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VideoDSPContext vdsp;
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H263DSPContext h263dsp;
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int f_code; ///< forward MV resolution
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int b_code; ///< backward MV resolution for B-frames (MPEG-4)
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int16_t (*p_mv_table_base)[2];
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int16_t (*b_forw_mv_table_base)[2];
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int16_t (*b_back_mv_table_base)[2];
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int16_t (*b_bidir_forw_mv_table_base)[2];
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int16_t (*b_bidir_back_mv_table_base)[2];
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int16_t (*b_direct_mv_table_base)[2];
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int16_t (*p_field_mv_table_base)[2];
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int16_t (*b_field_mv_table_base)[2];
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int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) P-frame encoding
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int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode B-frame encoding
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int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode B-frame encoding
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int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding
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int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding
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int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode B-frame encoding
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int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced P-frame encoding
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int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced B-frame encoding
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uint8_t (*p_field_select_table[2]); ///< Only the first element is allocated
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uint8_t (*b_field_select_table[2][2]); ///< Only the first element is allocated
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int motion_est; ///< ME algorithm
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int me_penalty_compensation;
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int me_pre; ///< prepass for motion estimation
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int mv_dir;
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#define MV_DIR_FORWARD 1
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#define MV_DIR_BACKWARD 2
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#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (MPEG-4)
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int mv_type;
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#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
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#define MV_TYPE_8X8 1 ///< 4 vectors (H.263, MPEG-4 4MV)
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#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
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#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
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#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
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/**motion vectors for a macroblock
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first coordinate : 0 = forward 1 = backward
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second " : depend on type
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third " : 0 = x, 1 = y
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*/
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int mv[2][4][2];
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int field_select[2][2];
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int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG-1 & B-frame MPEG-4
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const uint8_t *fcode_tab; ///< smallest fcode needed for each MV
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int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
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MotionEstContext me;
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int no_rounding; /**< apply no rounding to motion compensation (MPEG-4, msmpeg4, ...)
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for B-frames rounding mode is always 0 */
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/* macroblock layer */
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int mb_x, mb_y;
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int mb_skip_run;
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int mb_intra;
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uint16_t *mb_type; ///< Table for candidate MB types for encoding (defines in mpegutils.h)
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int block_index[6]; ///< index to current MB in block based arrays with edges
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int block_wrap[6];
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uint8_t *dest[3];
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int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
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/** matrix transmitted in the bitstream */
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uint16_t intra_matrix[64];
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uint16_t chroma_intra_matrix[64];
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uint16_t inter_matrix[64];
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uint16_t chroma_inter_matrix[64];
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int intra_quant_bias; ///< bias for the quantizer
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int inter_quant_bias; ///< bias for the quantizer
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int min_qcoeff; ///< minimum encodable coefficient
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int max_qcoeff; ///< maximum encodable coefficient
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int ac_esc_length; ///< num of bits needed to encode the longest esc
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uint8_t *intra_ac_vlc_length;
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uint8_t *intra_ac_vlc_last_length;
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uint8_t *intra_chroma_ac_vlc_length;
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uint8_t *intra_chroma_ac_vlc_last_length;
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uint8_t *inter_ac_vlc_length;
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uint8_t *inter_ac_vlc_last_length;
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uint8_t *luma_dc_vlc_length;
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#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
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int coded_score[12];
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/** precomputed matrix (combine qscale and DCT renorm) */
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int (*q_intra_matrix)[64];
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int (*q_chroma_intra_matrix)[64];
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int (*q_inter_matrix)[64];
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/** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
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uint16_t (*q_intra_matrix16)[2][64];
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uint16_t (*q_chroma_intra_matrix16)[2][64];
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uint16_t (*q_inter_matrix16)[2][64];
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/* noise reduction */
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int (*dct_error_sum)[64];
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int dct_count[2];
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uint16_t (*dct_offset)[64];
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/* bit rate control */
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int64_t total_bits;
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int frame_bits; ///< bits used for the current frame
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int stuffing_bits; ///< bits used for stuffing
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int next_lambda; ///< next lambda used for retrying to encode a frame
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RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
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/* statistics, used for 2-pass encoding */
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int mv_bits;
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int header_bits;
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int i_tex_bits;
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int p_tex_bits;
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int i_count;
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int f_count;
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int b_count;
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int skip_count;
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int misc_bits; ///< cbp, mb_type
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int last_bits; ///< temp var used for calculating the above vars
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/* error concealment / resync */
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int resync_mb_x; ///< x position of last resync marker
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int resync_mb_y; ///< y position of last resync marker
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GetBitContext last_resync_gb; ///< used to search for the next resync marker
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int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
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#if FF_API_FLAG_TRUNCATED
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ParseContext parse_context;
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#endif
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/* H.263 specific */
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int gob_index;
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int obmc; ///< overlapped block motion compensation
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int mb_info; ///< interval for outputting info about mb offsets as side data
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int prev_mb_info, last_mb_info;
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uint8_t *mb_info_ptr;
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int mb_info_size;
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int ehc_mode;
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/* H.263+ specific */
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int umvplus; ///< == H.263+ && unrestricted_mv
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int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
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int h263_slice_structured;
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int alt_inter_vlc; ///< alternative inter vlc
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int modified_quant;
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int loop_filter;
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int custom_pcf;
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/* MPEG-4 specific */
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int studio_profile;
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int dct_precision;
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///< number of bits to represent the fractional part of time (encoder only)
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int time_increment_bits;
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int last_time_base;
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int time_base; ///< time in seconds of last I,P,S Frame
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int64_t time; ///< time of current frame
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int64_t last_non_b_time;
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uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
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uint16_t pb_time; ///< time distance between the last b and p,s,i frame
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uint16_t pp_field_time;
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uint16_t pb_field_time; ///< like above, just for interlaced
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int real_sprite_warping_points;
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int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
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int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
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int mcsel;
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int quant_precision;
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int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
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int sprite_warping_accuracy;
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int data_partitioning; ///< data partitioning flag from header
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int partitioned_frame; ///< is current frame partitioned
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int low_delay; ///< no reordering needed / has no B-frames
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PutBitContext tex_pb; ///< used for data partitioned VOPs
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PutBitContext pb2; ///< used for data partitioned VOPs
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int mpeg_quant;
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int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG-4
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/* divx specific, used to workaround (many) bugs in divx5 */
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int divx_packed;
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uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
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int bitstream_buffer_size;
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unsigned int allocated_bitstream_buffer_size;
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/* RV10 specific */
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int rv10_version; ///< RV10 version: 0 or 3
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int rv10_first_dc_coded[3];
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/* MJPEG specific */
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struct MJpegContext *mjpeg_ctx;
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int esc_pos;
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/* MSMPEG4 specific */
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int mv_table_index;
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int rl_table_index;
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int rl_chroma_table_index;
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int dc_table_index;
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int use_skip_mb_code;
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int slice_height; ///< in macroblocks
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int first_slice_line; ///< used in MPEG-4 too to handle resync markers
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int flipflop_rounding;
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int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
|
|
int per_mb_rl_table;
|
|
int esc3_level_length;
|
|
int esc3_run_length;
|
|
/** [mb_intra][isChroma][level][run][last] */
|
|
int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
|
|
int inter_intra_pred;
|
|
int mspel;
|
|
|
|
/* SpeedHQ specific */
|
|
int slice_start;
|
|
|
|
/* decompression specific */
|
|
GetBitContext gb;
|
|
|
|
/* MPEG-1 specific */
|
|
int last_mv_dir; ///< last mv_dir, used for B-frame encoding
|
|
int vbv_delay_pos; ///< offset of vbv_delay in the bitstream
|
|
|
|
/* MPEG-2-specific - I wished not to have to support this mess. */
|
|
int progressive_sequence;
|
|
int mpeg_f_code[2][2];
|
|
|
|
// picture structure defines are loaded from mpegutils.h
|
|
int picture_structure;
|
|
|
|
int intra_dc_precision;
|
|
int frame_pred_frame_dct;
|
|
int top_field_first;
|
|
int concealment_motion_vectors;
|
|
int q_scale_type;
|
|
int brd_scale;
|
|
int intra_vlc_format;
|
|
int alternate_scan;
|
|
#define VIDEO_FORMAT_COMPONENT 0
|
|
#define VIDEO_FORMAT_PAL 1
|
|
#define VIDEO_FORMAT_NTSC 2
|
|
#define VIDEO_FORMAT_SECAM 3
|
|
#define VIDEO_FORMAT_MAC 4
|
|
#define VIDEO_FORMAT_UNSPECIFIED 5
|
|
int repeat_first_field;
|
|
int chroma_420_type;
|
|
int chroma_format;
|
|
#define CHROMA_420 1
|
|
#define CHROMA_422 2
|
|
#define CHROMA_444 3
|
|
int chroma_x_shift;//depend on pix_format, that depend on chroma_format
|
|
int chroma_y_shift;
|
|
|
|
int progressive_frame;
|
|
int full_pel[2];
|
|
int interlaced_dct;
|
|
int first_field; ///< is 1 for the first field of a field picture 0 otherwise
|
|
|
|
/* RTP specific */
|
|
int rtp_mode;
|
|
int rtp_payload_size;
|
|
|
|
uint8_t *ptr_lastgob;
|
|
int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped
|
|
int pack_pblocks; //xvmc needs to keep blocks without gaps.
|
|
int16_t (*pblocks[12])[64];
|
|
|
|
int16_t (*block)[64]; ///< points to one of the following blocks
|
|
int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block
|
|
int (*decode_mb)(struct MpegEncContext *s, int16_t block[12][64]); // used by some codecs to avoid a switch()
|
|
|
|
#define SLICE_OK 0
|
|
#define SLICE_ERROR -1
|
|
#define SLICE_END -2 ///<end marker found
|
|
#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
|
|
|
|
void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both)
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both)
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
|
|
int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
|
|
void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
|
|
|
|
int mpv_flags; ///< flags set by private options
|
|
int quantizer_noise_shaping;
|
|
|
|
/**
|
|
* ratecontrol qmin qmax limiting method
|
|
* 0-> clipping, 1-> use a nice continuous function to limit qscale within qmin/qmax.
|
|
*/
|
|
float rc_qsquish;
|
|
float rc_qmod_amp;
|
|
int rc_qmod_freq;
|
|
float rc_initial_cplx;
|
|
float rc_buffer_aggressivity;
|
|
float border_masking;
|
|
int lmin, lmax;
|
|
int vbv_ignore_qmax;
|
|
|
|
char *rc_eq;
|
|
|
|
/* temp buffers for rate control */
|
|
float *cplx_tab, *bits_tab;
|
|
|
|
/* flag to indicate a reinitialization is required, e.g. after
|
|
* a frame size change */
|
|
int context_reinit;
|
|
|
|
ERContext er;
|
|
|
|
int error_rate;
|
|
|
|
/* temporary frames used by b_frame_strategy = 2 */
|
|
AVFrame *tmp_frames[MAX_B_FRAMES + 2];
|
|
int b_frame_strategy;
|
|
int b_sensitivity;
|
|
|
|
/* frame skip options for encoding */
|
|
int frame_skip_threshold;
|
|
int frame_skip_factor;
|
|
int frame_skip_exp;
|
|
int frame_skip_cmp;
|
|
|
|
int scenechange_threshold;
|
|
int noise_reduction;
|
|
|
|
int intra_penalty;
|
|
|
|
#if FF_API_MPEGVIDEO_OPTS || FF_API_MJPEG_PRED
|
|
int dummy; ///< used as target for deprecated options
|
|
#endif
|
|
} MpegEncContext;
|
|
|
|
/* mpegvideo_enc common options */
|
|
#define FF_MPV_FLAG_SKIP_RD 0x0001
|
|
#define FF_MPV_FLAG_STRICT_GOP 0x0002
|
|
#define FF_MPV_FLAG_QP_RD 0x0004
|
|
#define FF_MPV_FLAG_CBP_RD 0x0008
|
|
#define FF_MPV_FLAG_NAQ 0x0010
|
|
#define FF_MPV_FLAG_MV0 0x0020
|
|
|
|
#define FF_MPV_OPT_CMP_FUNC \
|
|
{ "sad", "Sum of absolute differences, fast", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "sse", "Sum of squared errors", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "satd", "Sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SATD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "dct", "Sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "psnr", "Sum of squared quantization errors, low quality", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_PSNR }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "bit", "Number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_BIT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "rd", "Rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "zero", "Zero", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "vsad", "Sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "vsse", "Sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "nsse", "Noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "dct264", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT264 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{ "msad", "Sum of absolute differences, median predicted", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_MEDIAN_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }
|
|
|
|
#ifndef FF_MPV_OFFSET
|
|
#define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
|
|
#endif
|
|
#define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
|
|
#define FF_MPV_COMMON_OPTS \
|
|
FF_MPV_OPT_CMP_FUNC, \
|
|
{ "mpv_flags", "Flags common for all mpegvideo-based encoders.", FF_MPV_OFFSET(mpv_flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "skip_rd", "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_SKIP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "strict_gop", "Strictly enforce gop size", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_STRICT_GOP }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "qp_rd", "Use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_QP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "cbp_rd", "use rate distortion optimization for CBP", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_CBP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_MV0 }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
|
|
FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
|
|
{ "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
|
|
FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
|
|
{ "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
|
|
{ "error_rate", "Simulate errors in the bitstream to test error concealment.", \
|
|
FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
|
|
{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", \
|
|
FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS}, \
|
|
{"rc_qmod_amp", "experimental quantizer modulation", FF_MPV_OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"rc_qmod_freq", "experimental quantizer modulation", FF_MPV_OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions " \
|
|
"defined in the section 'Expression Evaluation', the following functions are available: " \
|
|
"bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " \
|
|
"fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", \
|
|
FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS }, \
|
|
{"rc_init_cplx", "initial complexity for 1-pass encoding", FF_MPV_OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"rc_buf_aggressivity", "currently useless", FF_MPV_OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"border_mask", "increase the quantizer for macroblocks close to borders", FF_MPV_OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"lmin", "minimum Lagrange factor (VBR)", FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 = 2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"lmax", "maximum Lagrange factor (VBR)", FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"ibias", "intra quant bias", FF_MPV_OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"pbias", "inter quant bias", FF_MPV_OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"motion_est", "motion estimation algorithm", FF_MPV_OFFSET(motion_est), AV_OPT_TYPE_INT, {.i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_XONE, FF_MPV_OPT_FLAGS, "motion_est" }, \
|
|
{ "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
|
|
{ "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
|
|
{ "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
|
|
{"skip_threshold", "Frame skip threshold", FF_MPV_OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"skip_factor", "Frame skip factor", FF_MPV_OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"skip_exp", "Frame skip exponent", FF_MPV_OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"skip_cmp", "Frame skip compare function", FF_MPV_OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
|
|
{"sc_threshold", "Scene change threshold", FF_MPV_OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"noise_reduction", "Noise reduction", FF_MPV_OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"ps", "RTP payload size in bytes", FF_MPV_OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"mepc", "Motion estimation bitrate penalty compensation (1.0 = 256)", FF_MPV_OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"mepre", "pre motion estimation", FF_MPV_OFFSET(me_pre), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"intra_penalty", "Penalty for intra blocks in block decision", FF_MPV_OFFSET(intra_penalty), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX/2, FF_MPV_OPT_FLAGS }, \
|
|
|
|
#define FF_MPV_COMMON_BFRAME_OPTS \
|
|
{"b_strategy", "Strategy to choose between I/P/B-frames", FF_MPV_OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 2, FF_MPV_OPT_FLAGS }, \
|
|
{"b_sensitivity", "Adjust sensitivity of b_frame_strategy 1", FF_MPV_OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.i64 = 40 }, 1, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"brd_scale", "Downscale frames for dynamic B-frame decision", FF_MPV_OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 3, FF_MPV_OPT_FLAGS },
|
|
|
|
#if FF_API_MPEGVIDEO_OPTS
|
|
#define FF_MPV_DEPRECATED_MPEG_QUANT_OPT \
|
|
{ "mpeg_quant", "Deprecated, does nothing", FF_MPV_OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 0, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED },
|
|
#define FF_MPV_DEPRECATED_A53_CC_OPT \
|
|
{ "a53cc", "Deprecated, does nothing", FF_MPV_OFFSET(dummy), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED },
|
|
#define FF_MPV_DEPRECATED_MATRIX_OPT \
|
|
{ "force_duplicated_matrix", "Deprecated, does nothing", FF_MPV_OFFSET(dummy), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED },
|
|
#define FF_MPV_DEPRECATED_BFRAME_OPTS \
|
|
{ "b_strategy", "Deprecated, does nothing", FF_MPV_OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED }, \
|
|
{ "b_sensitivity", "Deprecated, does nothing", FF_MPV_OFFSET(b_sensitivity), AV_OPT_TYPE_INT, { .i64 = 40 }, 1, INT_MAX, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED }, \
|
|
{ "brd_scale", "Deprecated, does nothing", FF_MPV_OFFSET(brd_scale), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED },
|
|
#endif
|
|
|
|
extern const AVClass ff_mpv_enc_class;
|
|
|
|
/**
|
|
* Set the given MpegEncContext to common defaults (same for encoding
|
|
* and decoding). The changed fields will not depend upon the prior
|
|
* state of the MpegEncContext.
|
|
*/
|
|
void ff_mpv_common_defaults(MpegEncContext *s);
|
|
|
|
void ff_dct_encode_init_x86(MpegEncContext *s);
|
|
|
|
int ff_mpv_common_init(MpegEncContext *s);
|
|
void ff_mpv_common_init_arm(MpegEncContext *s);
|
|
void ff_mpv_common_init_axp(MpegEncContext *s);
|
|
void ff_mpv_common_init_neon(MpegEncContext *s);
|
|
void ff_mpv_common_init_ppc(MpegEncContext *s);
|
|
void ff_mpv_common_init_x86(MpegEncContext *s);
|
|
void ff_mpv_common_init_mips(MpegEncContext *s);
|
|
/**
|
|
* Initialize an MpegEncContext's thread contexts. Presumes that
|
|
* slice_context_count is already set and that all the fields
|
|
* that are freed/reset in free_duplicate_context() are NULL.
|
|
*/
|
|
int ff_mpv_init_duplicate_contexts(MpegEncContext *s);
|
|
/**
|
|
* Initialize and allocates MpegEncContext fields dependent on the resolution.
|
|
*/
|
|
int ff_mpv_init_context_frame(MpegEncContext *s);
|
|
/**
|
|
* Frees and resets MpegEncContext fields depending on the resolution
|
|
* as well as the slice thread contexts.
|
|
* Is used during resolution changes to avoid a full reinitialization of the
|
|
* codec.
|
|
*/
|
|
void ff_mpv_free_context_frame(MpegEncContext *s);
|
|
|
|
int ff_mpv_common_frame_size_change(MpegEncContext *s);
|
|
void ff_mpv_common_end(MpegEncContext *s);
|
|
|
|
/**
|
|
* Initialize the given MpegEncContext for decoding.
|
|
* the changed fields will not depend upon
|
|
* the prior state of the MpegEncContext.
|
|
*/
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void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx);
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void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64]);
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void ff_mpv_report_decode_progress(MpegEncContext *s);
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int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx);
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void ff_mpv_frame_end(MpegEncContext *s);
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int ff_mpv_encode_init(AVCodecContext *avctx);
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void ff_mpv_encode_init_x86(MpegEncContext *s);
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int ff_mpv_encode_end(AVCodecContext *avctx);
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int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *frame, int *got_packet);
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int ff_mpv_reallocate_putbitbuffer(MpegEncContext *s, size_t threshold, size_t size_increase);
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void ff_clean_intra_table_entries(MpegEncContext *s);
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void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
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void ff_mpeg_flush(AVCodecContext *avctx);
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void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict);
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int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type);
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void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
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int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
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int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
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void ff_set_qscale(MpegEncContext * s, int qscale);
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void ff_mpv_idct_init(MpegEncContext *s);
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int ff_dct_encode_init(MpegEncContext *s);
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void ff_convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[2][64],
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const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
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int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
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void ff_block_permute(int16_t *block, uint8_t *permutation,
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const uint8_t *scantable, int last);
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void ff_init_block_index(MpegEncContext *s);
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void ff_mpv_motion(MpegEncContext *s,
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uint8_t *dest_y, uint8_t *dest_cb,
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uint8_t *dest_cr, int dir,
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uint8_t **ref_picture,
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op_pixels_func (*pix_op)[4],
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qpel_mc_func (*qpix_op)[16]);
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static inline void ff_update_block_index(MpegEncContext *s){
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const int bytes_per_pixel = 1 + (s->avctx->bits_per_raw_sample > 8);
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const int block_size= (8*bytes_per_pixel) >> s->avctx->lowres;
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s->block_index[0]+=2;
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s->block_index[1]+=2;
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s->block_index[2]+=2;
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s->block_index[3]+=2;
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s->block_index[4]++;
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s->block_index[5]++;
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s->dest[0]+= 2*block_size;
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s->dest[1]+= (2 >> s->chroma_x_shift) * block_size;
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s->dest[2]+= (2 >> s->chroma_x_shift) * block_size;
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}
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static inline int get_bits_diff(MpegEncContext *s){
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const int bits= put_bits_count(&s->pb);
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const int last= s->last_bits;
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s->last_bits = bits;
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return bits - last;
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}
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static inline int mpeg_get_qscale(MpegEncContext *s)
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{
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int qscale = get_bits(&s->gb, 5);
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if (s->q_scale_type)
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return ff_mpeg2_non_linear_qscale[qscale];
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else
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return qscale << 1;
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}
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#endif /* AVCODEC_MPEGVIDEO_H */
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