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/* |
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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 "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 "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 "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 "videodsp.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 pointer is intended for codecs sharing code |
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* between decoder and encoder and in need of a common context to do so. */ |
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void *private_ctx; |
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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 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 |
| 111 |
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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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* Reference to the source picture 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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AVFrame *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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| 187 |
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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; |
| 215 |
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QpelDSPContext qdsp; |
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VideoDSPContext vdsp; |
| 217 |
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H263DSPContext h263dsp; |
| 218 |
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int f_code; ///< forward MV resolution |
| 219 |
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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]; |
| 226 |
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int16_t (*p_field_mv_table_base)[2]; |
| 227 |
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int16_t (*b_field_mv_table_base)[2]; |
| 228 |
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int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) P-frame encoding |
| 229 |
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int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode B-frame encoding |
| 230 |
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int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode B-frame encoding |
| 231 |
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int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding |
| 232 |
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int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding |
| 233 |
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int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode B-frame encoding |
| 234 |
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int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced P-frame encoding |
| 235 |
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int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced B-frame encoding |
| 236 |
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uint8_t (*p_field_select_table[2]); ///< Only the first element is allocated |
| 237 |
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uint8_t (*b_field_select_table[2][2]); ///< Only the first element is allocated |
| 238 |
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int motion_est; ///< ME algorithm |
| 239 |
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int me_penalty_compensation; |
| 240 |
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int me_pre; ///< prepass for motion estimation |
| 241 |
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int mv_dir; |
| 242 |
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#define MV_DIR_FORWARD 1 |
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#define MV_DIR_BACKWARD 2 |
| 244 |
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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) |
| 245 |
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int mv_type; |
| 246 |
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#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb |
| 247 |
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#define MV_TYPE_8X8 1 ///< 4 vectors (H.263, MPEG-4 4MV) |
| 248 |
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#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block |
| 249 |
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#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field |
| 250 |
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#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors |
| 251 |
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/**motion vectors for a macroblock |
| 252 |
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first coordinate : 0 = forward 1 = backward |
| 253 |
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second " : depend on type |
| 254 |
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third " : 0 = x, 1 = y |
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*/ |
| 256 |
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int mv[2][4][2]; |
| 257 |
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int field_select[2][2]; |
| 258 |
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int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG-1 & B-frame MPEG-4 |
| 259 |
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const uint8_t *fcode_tab; ///< smallest fcode needed for each MV |
| 260 |
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int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv |
| 261 |
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| 262 |
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MotionEstContext me; |
| 263 |
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| 264 |
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int no_rounding; /**< apply no rounding to motion compensation (MPEG-4, msmpeg4, ...) |
| 265 |
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for B-frames rounding mode is always 0 */ |
| 266 |
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| 267 |
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/* macroblock layer */ |
| 268 |
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int mb_x, mb_y; |
| 269 |
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int mb_skip_run; |
| 270 |
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int mb_intra; |
| 271 |
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uint16_t *mb_type; ///< Table for candidate MB types for encoding (defines in mpegutils.h) |
| 272 |
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| 273 |
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int block_index[6]; ///< index to current MB in block based arrays with edges |
| 274 |
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int block_wrap[6]; |
| 275 |
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uint8_t *dest[3]; |
| 276 |
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| 277 |
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int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride |
| 278 |
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| 279 |
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/** matrix transmitted in the bitstream */ |
| 280 |
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uint16_t intra_matrix[64]; |
| 281 |
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uint16_t chroma_intra_matrix[64]; |
| 282 |
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uint16_t inter_matrix[64]; |
| 283 |
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uint16_t chroma_inter_matrix[64]; |
| 284 |
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| 285 |
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int intra_quant_bias; ///< bias for the quantizer |
| 286 |
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int inter_quant_bias; ///< bias for the quantizer |
| 287 |
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int min_qcoeff; ///< minimum encodable coefficient |
| 288 |
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int max_qcoeff; ///< maximum encodable coefficient |
| 289 |
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int ac_esc_length; ///< num of bits needed to encode the longest esc |
| 290 |
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uint8_t *intra_ac_vlc_length; |
| 291 |
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uint8_t *intra_ac_vlc_last_length; |
| 292 |
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uint8_t *intra_chroma_ac_vlc_length; |
| 293 |
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uint8_t *intra_chroma_ac_vlc_last_length; |
| 294 |
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uint8_t *inter_ac_vlc_length; |
| 295 |
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uint8_t *inter_ac_vlc_last_length; |
| 296 |
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uint8_t *luma_dc_vlc_length; |
| 297 |
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| 298 |
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int coded_score[12]; |
| 299 |
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| 300 |
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/** precomputed matrix (combine qscale and DCT renorm) */ |
| 301 |
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int (*q_intra_matrix)[64]; |
| 302 |
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int (*q_chroma_intra_matrix)[64]; |
| 303 |
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int (*q_inter_matrix)[64]; |
| 304 |
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/** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/ |
| 305 |
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uint16_t (*q_intra_matrix16)[2][64]; |
| 306 |
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uint16_t (*q_chroma_intra_matrix16)[2][64]; |
| 307 |
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uint16_t (*q_inter_matrix16)[2][64]; |
| 308 |
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| 309 |
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/* noise reduction */ |
| 310 |
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int (*dct_error_sum)[64]; |
| 311 |
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int dct_count[2]; |
| 312 |
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uint16_t (*dct_offset)[64]; |
| 313 |
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| 314 |
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/* bit rate control */ |
| 315 |
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int64_t total_bits; |
| 316 |
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int frame_bits; ///< bits used for the current frame |
| 317 |
|
|
int stuffing_bits; ///< bits used for stuffing |
| 318 |
|
|
int next_lambda; ///< next lambda used for retrying to encode a frame |
| 319 |
|
|
RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c |
| 320 |
|
|
|
| 321 |
|
|
/* statistics, used for 2-pass encoding */ |
| 322 |
|
|
int mv_bits; |
| 323 |
|
|
int header_bits; |
| 324 |
|
|
int i_tex_bits; |
| 325 |
|
|
int p_tex_bits; |
| 326 |
|
|
int i_count; |
| 327 |
|
|
int skip_count; |
| 328 |
|
|
int misc_bits; ///< cbp, mb_type |
| 329 |
|
|
int last_bits; ///< temp var used for calculating the above vars |
| 330 |
|
|
|
| 331 |
|
|
/* error concealment / resync */ |
| 332 |
|
|
int resync_mb_x; ///< x position of last resync marker |
| 333 |
|
|
int resync_mb_y; ///< y position of last resync marker |
| 334 |
|
|
GetBitContext last_resync_gb; ///< used to search for the next resync marker |
| 335 |
|
|
int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only) |
| 336 |
|
|
|
| 337 |
|
|
#if FF_API_FLAG_TRUNCATED |
| 338 |
|
|
ParseContext parse_context; |
| 339 |
|
|
#endif |
| 340 |
|
|
|
| 341 |
|
|
/* H.263 specific */ |
| 342 |
|
|
int gob_index; |
| 343 |
|
|
int obmc; ///< overlapped block motion compensation |
| 344 |
|
|
int mb_info; ///< interval for outputting info about mb offsets as side data |
| 345 |
|
|
int prev_mb_info, last_mb_info; |
| 346 |
|
|
uint8_t *mb_info_ptr; |
| 347 |
|
|
int mb_info_size; |
| 348 |
|
|
int ehc_mode; |
| 349 |
|
|
|
| 350 |
|
|
/* H.263+ specific */ |
| 351 |
|
|
int umvplus; ///< == H.263+ && unrestricted_mv |
| 352 |
|
|
int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top |
| 353 |
|
|
int h263_slice_structured; |
| 354 |
|
|
int alt_inter_vlc; ///< alternative inter vlc |
| 355 |
|
|
int modified_quant; |
| 356 |
|
|
int loop_filter; |
| 357 |
|
|
int custom_pcf; |
| 358 |
|
|
|
| 359 |
|
|
/* MPEG-4 specific */ |
| 360 |
|
|
int studio_profile; |
| 361 |
|
|
int dct_precision; |
| 362 |
|
|
///< number of bits to represent the fractional part of time (encoder only) |
| 363 |
|
|
int time_increment_bits; |
| 364 |
|
|
int last_time_base; |
| 365 |
|
|
int time_base; ///< time in seconds of last I,P,S Frame |
| 366 |
|
|
int64_t time; ///< time of current frame |
| 367 |
|
|
int64_t last_non_b_time; |
| 368 |
|
|
uint16_t pp_time; ///< time distance between the last 2 p,s,i frames |
| 369 |
|
|
uint16_t pb_time; ///< time distance between the last b and p,s,i frame |
| 370 |
|
|
uint16_t pp_field_time; |
| 371 |
|
|
uint16_t pb_field_time; ///< like above, just for interlaced |
| 372 |
|
|
int real_sprite_warping_points; |
| 373 |
|
|
int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY] |
| 374 |
|
|
int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY] |
| 375 |
|
|
int mcsel; |
| 376 |
|
|
int quant_precision; |
| 377 |
|
|
int quarter_sample; ///< 1->qpel, 0->half pel ME/MC |
| 378 |
|
|
int sprite_warping_accuracy; |
| 379 |
|
|
int data_partitioning; ///< data partitioning flag from header |
| 380 |
|
|
int partitioned_frame; ///< is current frame partitioned |
| 381 |
|
|
int low_delay; ///< no reordering needed / has no B-frames |
| 382 |
|
|
PutBitContext tex_pb; ///< used for data partitioned VOPs |
| 383 |
|
|
PutBitContext pb2; ///< used for data partitioned VOPs |
| 384 |
|
|
int mpeg_quant; |
| 385 |
|
|
int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG-4 |
| 386 |
|
|
|
| 387 |
|
|
/* divx specific, used to workaround (many) bugs in divx5 */ |
| 388 |
|
|
int divx_packed; |
| 389 |
|
|
uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them |
| 390 |
|
|
int bitstream_buffer_size; |
| 391 |
|
|
unsigned int allocated_bitstream_buffer_size; |
| 392 |
|
|
|
| 393 |
|
|
/* RV10 specific */ |
| 394 |
|
|
int rv10_version; ///< RV10 version: 0 or 3 |
| 395 |
|
|
int rv10_first_dc_coded[3]; |
| 396 |
|
|
|
| 397 |
|
|
/* MJPEG specific */ |
| 398 |
|
|
struct MJpegContext *mjpeg_ctx; |
| 399 |
|
|
int esc_pos; |
| 400 |
|
|
|
| 401 |
|
|
/* MSMPEG4 specific */ |
| 402 |
|
|
int mv_table_index; |
| 403 |
|
|
int rl_table_index; |
| 404 |
|
|
int rl_chroma_table_index; |
| 405 |
|
|
int dc_table_index; |
| 406 |
|
|
int use_skip_mb_code; |
| 407 |
|
|
int slice_height; ///< in macroblocks |
| 408 |
|
|
int first_slice_line; ///< used in MPEG-4 too to handle resync markers |
| 409 |
|
|
int flipflop_rounding; |
| 410 |
|
|
int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8 |
| 411 |
|
|
int per_mb_rl_table; |
| 412 |
|
|
int esc3_level_length; |
| 413 |
|
|
int esc3_run_length; |
| 414 |
|
|
int inter_intra_pred; |
| 415 |
|
|
int mspel; |
| 416 |
|
|
|
| 417 |
|
|
/* decompression specific */ |
| 418 |
|
|
GetBitContext gb; |
| 419 |
|
|
|
| 420 |
|
|
/* MPEG-1 specific */ |
| 421 |
|
|
int last_mv_dir; ///< last mv_dir, used for B-frame encoding |
| 422 |
|
|
int vbv_delay_pos; ///< offset of vbv_delay in the bitstream |
| 423 |
|
|
|
| 424 |
|
|
/* MPEG-2-specific - I wished not to have to support this mess. */ |
| 425 |
|
|
int progressive_sequence; |
| 426 |
|
|
int mpeg_f_code[2][2]; |
| 427 |
|
|
|
| 428 |
|
|
// picture structure defines are loaded from mpegutils.h |
| 429 |
|
|
int picture_structure; |
| 430 |
|
|
|
| 431 |
|
|
int intra_dc_precision; |
| 432 |
|
|
int frame_pred_frame_dct; |
| 433 |
|
|
int top_field_first; |
| 434 |
|
|
int concealment_motion_vectors; |
| 435 |
|
|
int q_scale_type; |
| 436 |
|
|
int brd_scale; |
| 437 |
|
|
int intra_vlc_format; |
| 438 |
|
|
int alternate_scan; |
| 439 |
|
|
#define VIDEO_FORMAT_COMPONENT 0 |
| 440 |
|
|
#define VIDEO_FORMAT_PAL 1 |
| 441 |
|
|
#define VIDEO_FORMAT_NTSC 2 |
| 442 |
|
|
#define VIDEO_FORMAT_SECAM 3 |
| 443 |
|
|
#define VIDEO_FORMAT_MAC 4 |
| 444 |
|
|
#define VIDEO_FORMAT_UNSPECIFIED 5 |
| 445 |
|
|
int repeat_first_field; |
| 446 |
|
|
int chroma_420_type; |
| 447 |
|
|
int chroma_format; |
| 448 |
|
|
#define CHROMA_420 1 |
| 449 |
|
|
#define CHROMA_422 2 |
| 450 |
|
|
#define CHROMA_444 3 |
| 451 |
|
|
int chroma_x_shift;//depend on pix_format, that depend on chroma_format |
| 452 |
|
|
int chroma_y_shift; |
| 453 |
|
|
|
| 454 |
|
|
int progressive_frame; |
| 455 |
|
|
int full_pel[2]; |
| 456 |
|
|
int interlaced_dct; |
| 457 |
|
|
int first_field; ///< is 1 for the first field of a field picture 0 otherwise |
| 458 |
|
|
|
| 459 |
|
|
/* RTP specific */ |
| 460 |
|
|
int rtp_mode; |
| 461 |
|
|
int rtp_payload_size; |
| 462 |
|
|
|
| 463 |
|
|
uint8_t *ptr_lastgob; |
| 464 |
|
|
int16_t (*pblocks[12])[64]; |
| 465 |
|
|
|
| 466 |
|
|
int16_t (*block)[64]; ///< points to one of the following blocks |
| 467 |
|
|
int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block |
| 468 |
|
|
int (*decode_mb)(struct MpegEncContext *s, int16_t block[12][64]); // used by some codecs to avoid a switch() |
| 469 |
|
|
|
| 470 |
|
|
#define SLICE_OK 0 |
| 471 |
|
|
#define SLICE_ERROR -1 |
| 472 |
|
|
#define SLICE_END -2 ///<end marker found |
| 473 |
|
|
#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded |
| 474 |
|
|
|
| 475 |
|
|
void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, |
| 476 |
|
|
int16_t *block/*align 16*/, int n, int qscale); |
| 477 |
|
|
void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, |
| 478 |
|
|
int16_t *block/*align 16*/, int n, int qscale); |
| 479 |
|
|
void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, |
| 480 |
|
|
int16_t *block/*align 16*/, int n, int qscale); |
| 481 |
|
|
void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, |
| 482 |
|
|
int16_t *block/*align 16*/, int n, int qscale); |
| 483 |
|
|
void (*dct_unquantize_h263_intra)(struct MpegEncContext *s, |
| 484 |
|
|
int16_t *block/*align 16*/, int n, int qscale); |
| 485 |
|
|
void (*dct_unquantize_h263_inter)(struct MpegEncContext *s, |
| 486 |
|
|
int16_t *block/*align 16*/, int n, int qscale); |
| 487 |
|
|
void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both) |
| 488 |
|
|
int16_t *block/*align 16*/, int n, int qscale); |
| 489 |
|
|
void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both) |
| 490 |
|
|
int16_t *block/*align 16*/, int n, int qscale); |
| 491 |
|
|
int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow); |
| 492 |
|
|
int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow); |
| 493 |
|
|
void (*denoise_dct)(struct MpegEncContext *s, int16_t *block); |
| 494 |
|
|
|
| 495 |
|
|
int mpv_flags; ///< flags set by private options |
| 496 |
|
|
int quantizer_noise_shaping; |
| 497 |
|
|
|
| 498 |
|
|
/** |
| 499 |
|
|
* ratecontrol qmin qmax limiting method |
| 500 |
|
|
* 0-> clipping, 1-> use a nice continuous function to limit qscale within qmin/qmax. |
| 501 |
|
|
*/ |
| 502 |
|
|
float rc_qsquish; |
| 503 |
|
|
float rc_qmod_amp; |
| 504 |
|
|
int rc_qmod_freq; |
| 505 |
|
|
float rc_initial_cplx; |
| 506 |
|
|
float rc_buffer_aggressivity; |
| 507 |
|
|
float border_masking; |
| 508 |
|
|
int lmin, lmax; |
| 509 |
|
|
int vbv_ignore_qmax; |
| 510 |
|
|
|
| 511 |
|
|
char *rc_eq; |
| 512 |
|
|
|
| 513 |
|
|
/* temp buffers for rate control */ |
| 514 |
|
|
float *cplx_tab, *bits_tab; |
| 515 |
|
|
|
| 516 |
|
|
/* flag to indicate a reinitialization is required, e.g. after |
| 517 |
|
|
* a frame size change */ |
| 518 |
|
|
int context_reinit; |
| 519 |
|
|
|
| 520 |
|
|
ERContext er; |
| 521 |
|
|
|
| 522 |
|
|
int error_rate; |
| 523 |
|
|
|
| 524 |
|
|
/* temporary frames used by b_frame_strategy = 2 */ |
| 525 |
|
|
AVFrame *tmp_frames[MAX_B_FRAMES + 2]; |
| 526 |
|
|
int b_frame_strategy; |
| 527 |
|
|
int b_sensitivity; |
| 528 |
|
|
|
| 529 |
|
|
/* frame skip options for encoding */ |
| 530 |
|
|
int frame_skip_threshold; |
| 531 |
|
|
int frame_skip_factor; |
| 532 |
|
|
int frame_skip_exp; |
| 533 |
|
|
int frame_skip_cmp; |
| 534 |
|
|
|
| 535 |
|
|
int scenechange_threshold; |
| 536 |
|
|
int noise_reduction; |
| 537 |
|
|
|
| 538 |
|
|
int intra_penalty; |
| 539 |
|
|
} MpegEncContext; |
| 540 |
|
|
|
| 541 |
|
|
|
| 542 |
|
|
/** |
| 543 |
|
|
* Set the given MpegEncContext to common defaults (same for encoding |
| 544 |
|
|
* and decoding). The changed fields will not depend upon the prior |
| 545 |
|
|
* state of the MpegEncContext. |
| 546 |
|
|
*/ |
| 547 |
|
|
void ff_mpv_common_defaults(MpegEncContext *s); |
| 548 |
|
|
|
| 549 |
|
|
int ff_mpv_common_init(MpegEncContext *s); |
| 550 |
|
|
void ff_mpv_common_init_arm(MpegEncContext *s); |
| 551 |
|
|
void ff_mpv_common_init_axp(MpegEncContext *s); |
| 552 |
|
|
void ff_mpv_common_init_neon(MpegEncContext *s); |
| 553 |
|
|
void ff_mpv_common_init_ppc(MpegEncContext *s); |
| 554 |
|
|
void ff_mpv_common_init_x86(MpegEncContext *s); |
| 555 |
|
|
void ff_mpv_common_init_mips(MpegEncContext *s); |
| 556 |
|
|
/** |
| 557 |
|
|
* Initialize an MpegEncContext's thread contexts. Presumes that |
| 558 |
|
|
* slice_context_count is already set and that all the fields |
| 559 |
|
|
* that are freed/reset in free_duplicate_context() are NULL. |
| 560 |
|
|
*/ |
| 561 |
|
|
int ff_mpv_init_duplicate_contexts(MpegEncContext *s); |
| 562 |
|
|
/** |
| 563 |
|
|
* Initialize and allocates MpegEncContext fields dependent on the resolution. |
| 564 |
|
|
*/ |
| 565 |
|
|
int ff_mpv_init_context_frame(MpegEncContext *s); |
| 566 |
|
|
/** |
| 567 |
|
|
* Frees and resets MpegEncContext fields depending on the resolution |
| 568 |
|
|
* as well as the slice thread contexts. |
| 569 |
|
|
* Is used during resolution changes to avoid a full reinitialization of the |
| 570 |
|
|
* codec. |
| 571 |
|
|
*/ |
| 572 |
|
|
void ff_mpv_free_context_frame(MpegEncContext *s); |
| 573 |
|
|
|
| 574 |
|
|
void ff_mpv_common_end(MpegEncContext *s); |
| 575 |
|
|
|
| 576 |
|
|
void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64]); |
| 577 |
|
|
|
| 578 |
|
|
void ff_clean_intra_table_entries(MpegEncContext *s); |
| 579 |
|
|
|
| 580 |
|
|
int ff_update_duplicate_context(MpegEncContext *dst, const MpegEncContext *src); |
| 581 |
|
|
void ff_set_qscale(MpegEncContext * s, int qscale); |
| 582 |
|
|
|
| 583 |
|
|
void ff_mpv_idct_init(MpegEncContext *s); |
| 584 |
|
|
void ff_init_block_index(MpegEncContext *s); |
| 585 |
|
|
|
| 586 |
|
|
void ff_mpv_motion(MpegEncContext *s, |
| 587 |
|
|
uint8_t *dest_y, uint8_t *dest_cb, |
| 588 |
|
|
uint8_t *dest_cr, int dir, |
| 589 |
|
|
uint8_t **ref_picture, |
| 590 |
|
|
op_pixels_func (*pix_op)[4], |
| 591 |
|
|
qpel_mc_func (*qpix_op)[16]); |
| 592 |
|
|
|
| 593 |
|
6711221 |
static inline void ff_update_block_index(MpegEncContext *s){ |
| 594 |
2/2
✓ Branch 0 taken 1350 times.
✓ Branch 1 taken 6709871 times.
|
6711221 |
const int bytes_per_pixel = 1 + (s->avctx->bits_per_raw_sample > 8); |
| 595 |
|
6711221 |
const int block_size= (8*bytes_per_pixel) >> s->avctx->lowres; |
| 596 |
|
|
|
| 597 |
|
6711221 |
s->block_index[0]+=2; |
| 598 |
|
6711221 |
s->block_index[1]+=2; |
| 599 |
|
6711221 |
s->block_index[2]+=2; |
| 600 |
|
6711221 |
s->block_index[3]+=2; |
| 601 |
|
6711221 |
s->block_index[4]++; |
| 602 |
|
6711221 |
s->block_index[5]++; |
| 603 |
|
6711221 |
s->dest[0]+= 2*block_size; |
| 604 |
|
6711221 |
s->dest[1]+= (2 >> s->chroma_x_shift) * block_size; |
| 605 |
|
6711221 |
s->dest[2]+= (2 >> s->chroma_x_shift) * block_size; |
| 606 |
|
6711221 |
} |
| 607 |
|
|
|
| 608 |
|
|
#endif /* AVCODEC_MPEGVIDEO_H */ |
| 609 |
|
|
|