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774 lines
39 KiB
C
Executable File
774 lines
39 KiB
C
Executable File
/*
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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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#include "parser.h"
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#include "mpegutils.h"
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#include "mpeg12data.h"
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#include "qpeldsp.h"
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#include "thread.h"
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#include "videodsp.h"
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#include "libavutil/opt.h"
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#include "libavutil/timecode.h"
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#define MAX_THREADS 32
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#define MAX_B_FRAMES 16
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/* Start codes. */
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#define SEQ_END_CODE 0x000001b7
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#define SEQ_START_CODE 0x000001b3
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#define GOP_START_CODE 0x000001b8
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#define PICTURE_START_CODE 0x00000100
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#define SLICE_MIN_START_CODE 0x00000101
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#define SLICE_MAX_START_CODE 0x000001af
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#define EXT_START_CODE 0x000001b5
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#define USER_START_CODE 0x000001b2
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#define SLICE_START_CODE 0x000001b7
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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_encode_video2()
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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 closed_gop; ///< MPEG1/2 GOP is closed
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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 frame_rate_index;
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AVRational mpeg2_frame_rate_ext;
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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][2])[2];
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int16_t (*b_field_mv_table_base[2][2][2])[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]);
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uint8_t (*b_field_select_table[2][2]);
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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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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 force_duplicated_matrix; ///< Force duplication of mjpeg matrices, useful for rtp streaming
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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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int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed B-frames
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ParseContext parse_context;
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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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int rc_strategy; ///< deprecated
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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 aspect_ratio_info; //FIXME remove
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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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int vo_type;
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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];
|
|
|
|
/* MJPEG specific */
|
|
struct MJpegContext *mjpeg_ctx;
|
|
int esc_pos;
|
|
int pred;
|
|
int huffman;
|
|
|
|
/* MSMPEG4 specific */
|
|
int mv_table_index;
|
|
int rl_table_index;
|
|
int rl_chroma_table_index;
|
|
int dc_table_index;
|
|
int use_skip_mb_code;
|
|
int slice_height; ///< in macroblocks
|
|
int first_slice_line; ///< used in MPEG-4 too to handle resync markers
|
|
int flipflop_rounding;
|
|
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;
|
|
|
|
/* decompression specific */
|
|
GetBitContext gb;
|
|
|
|
/* MPEG-1 specific */
|
|
int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & MPEG-1 specific
|
|
int last_mv_dir; ///< last mv_dir, used for B-frame encoding
|
|
uint8_t *vbv_delay_ptr; ///< pointer to 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];
|
|
int a53_cc;
|
|
|
|
// picture structure defines are loaded from mpegutils.h
|
|
int picture_structure;
|
|
|
|
int64_t timecode_frame_start; ///< GOP timecode frame start number, in non drop frame format
|
|
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;
|
|
int seq_disp_ext;
|
|
int video_format;
|
|
#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
|
|
int drop_frame_timecode; ///< timecode is in drop frame format.
|
|
int scan_offset; ///< reserve space for SVCD scan offset user data.
|
|
|
|
/* RTP specific */
|
|
int rtp_mode;
|
|
int rtp_payload_size;
|
|
|
|
char *tc_opt_str; ///< timecode option string
|
|
AVTimecode tc; ///< timecode context
|
|
|
|
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()
|
|
|
|
int32_t (*block32)[12][64];
|
|
int dpcm_direction; // 0 = DCT, 1 = DPCM top to bottom scan, -1 = DPCM bottom to top scan
|
|
int16_t (*dpcm_macroblock)[3][256];
|
|
|
|
#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;
|
|
} 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 }, \
|
|
{"rc_strategy", "ratecontrol method", FF_MPV_OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED, "rc_strategy" }, \
|
|
{ "ffmpeg", "deprecated, does nothing", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED, "rc_strategy" }, \
|
|
{ "xvid", "deprecated, does nothing", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED, "rc_strategy" }, \
|
|
{"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" }, \
|
|
{ "force_duplicated_matrix", "Always write luma and chroma matrix for mjpeg, useful for rtp streaming.", FF_MPV_OFFSET(force_duplicated_matrix), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS }, \
|
|
{"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 }, \
|
|
{"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 }, \
|
|
{"mpeg_quant", "Use MPEG quantizers instead of H.263", FF_MPV_OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, 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 }, \
|
|
{"a53cc", "Use A53 Closed Captions (if available)", FF_MPV_OFFSET(a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FF_MPV_OPT_FLAGS }, \
|
|
|
|
extern const AVOption ff_mpv_generic_options[];
|
|
|
|
/**
|
|
* 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);
|
|
|
|
int ff_mpv_common_frame_size_change(MpegEncContext *s);
|
|
void ff_mpv_common_end(MpegEncContext *s);
|
|
|
|
void ff_mpv_decode_defaults(MpegEncContext *s);
|
|
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx);
|
|
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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