/* * Generic DCT based hybrid video encoder * Copyright (c) 2000, 2001, 2002 Fabrice Bellard * Copyright (c) 2002-2004 Michael Niedermayer * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * mpegvideo header. */ #ifndef AVCODEC_MPEGVIDEOENC_H #define AVCODEC_MPEGVIDEOENC_H #include #include "libavutil/avassert.h" #include "libavutil/mem_internal.h" #include "libavutil/opt.h" #include "fdctdsp.h" #include "motion_est.h" #include "mpegvideo.h" #include "mpegvideoencdsp.h" #include "pixblockdsp.h" #include "put_bits.h" #include "ratecontrol.h" #define MPVENC_MAX_B_FRAMES 16 typedef struct MPVEncContext { MpegEncContext c; ///< the common base context /** bit output */ PutBitContext pb; unsigned int lambda; ///< Lagrange multiplier used in rate distortion unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT int *lambda_table; int adaptive_quant; ///< use adaptive quantization int dquant; ///< qscale difference to prev qscale int skipdct; ///< skip dct and code zero residual int quantizer_noise_shaping; int luma_elim_threshold; int chroma_elim_threshold; int mpv_flags; ///< flags set by private options /// Bitfield containing information which frames to reconstruct. int frame_reconstruction_bitfield; /** * Reference to the source picture. */ AVFrame *new_pic; struct MPVMainEncContext *parent; FDCTDSPContext fdsp; MpegvideoEncDSPContext mpvencdsp; PixblockDSPContext pdsp; MotionEstContext me; int f_code; ///< forward MV resolution int b_code; ///< backward MV resolution for B-frames int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) P-frame int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode B-frame int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode B-frame int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode B-frame int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced B-frame uint8_t (*p_field_select_table[2]); ///< Only the first element is allocated uint8_t (*b_field_select_table[2][2]); ///< allocated jointly with p_field_select_table uint16_t *mb_type; ///< Table for candidate MB types uint16_t *mb_var; ///< Table for MB variances uint16_t *mc_mb_var; ///< Table for motion compensated MB variances uint8_t *mb_mean; ///< Table for MB luminance uint64_t encoding_error[MPV_MAX_PLANES]; int intra_quant_bias; ///< bias for the quantizer int inter_quant_bias; ///< bias for the quantizer int min_qcoeff; ///< minimum encodable coefficient int max_qcoeff; ///< maximum encodable coefficient int ac_esc_length; ///< num of bits needed to encode the longest esc const uint8_t *intra_ac_vlc_length; const uint8_t *intra_ac_vlc_last_length; const uint8_t *intra_chroma_ac_vlc_length; const uint8_t *intra_chroma_ac_vlc_last_length; const uint8_t *inter_ac_vlc_length; const uint8_t *inter_ac_vlc_last_length; const uint8_t *luma_dc_vlc_length; int coded_score[12]; int16_t (*block)[64]; ///< points into blocks below /** precomputed matrix (combine qscale and DCT renorm) */ int (*q_intra_matrix)[64]; int (*q_chroma_intra_matrix)[64]; int (*q_inter_matrix)[64]; /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/ uint16_t (*q_intra_matrix16)[2][64]; uint16_t (*q_chroma_intra_matrix16)[2][64]; uint16_t (*q_inter_matrix16)[2][64]; /* noise reduction */ void (*denoise_dct)(struct MPVEncContext *s, int16_t *block); int (*dct_error_sum)[64]; int dct_count[2]; uint16_t (*dct_offset)[64]; int picture_number; /* statistics, used for 2-pass encoding */ int mv_bits; int i_tex_bits; int p_tex_bits; int i_count; int misc_bits; ///< cbp, mb_type int last_bits; ///< temp var used for calculating the above vars int mb_skip_run; /* H.263 specific */ int gob_index; int mb_info; ///< interval for outputting info about mb offsets as side data int prev_mb_info, last_mb_info; int mb_info_size; uint8_t *mb_info_ptr; /* H.263+ specific */ int umvplus; ///< == H.263+ && unrestricted_mv int h263_slice_structured; int alt_inter_vlc; ///< alternative inter vlc int modified_quant; int loop_filter; /* MJPEG specific */ struct MJpegContext *mjpeg_ctx; int esc_pos; /* MPEG-1 specific */ int last_mv_dir; ///< last mv_dir, used for B-frame encoding /* MPEG-4 specific */ int data_partitioning; ///< data partitioning flag, set via option int partitioned_frame; ///< is current frame partitioned int mpeg_quant; PutBitContext tex_pb; ///< used for data partitioned VOPs PutBitContext pb2; ///< used for data partitioned VOPs /* MSMPEG4 specific */ int slice_height; ///< in macroblocks int flipflop_rounding; ///< also used for MPEG-4, H.263+ int esc3_level_length; /* RTP specific */ int rtp_mode; int rtp_payload_size; int error_rate; uint8_t *ptr_lastgob; void (*encode_mb)(struct MPVEncContext *s, int16_t block[][64], int motion_x, int motion_y); int (*dct_quantize)(struct MPVEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow); me_cmp_func ildct_cmp[2]; ///< 0 = intra, 1 = non-intra me_cmp_func n_sse_cmp[2]; ///< either SSE or NSSE cmp func me_cmp_func sad_cmp[2]; me_cmp_func sse_cmp[2]; int (*sum_abs_dctelem)(const int16_t *block); int intra_penalty; DECLARE_ALIGNED_32(int16_t, blocks)[2][12][64]; // for HQ mode we need to keep the best block } MPVEncContext; typedef struct MPVMainEncContext { MPVEncContext s; ///< The main slicecontext int intra_only; ///< if true, only intra pictures are generated int gop_size; int max_b_frames; ///< max number of B-frames int picture_in_gop_number; ///< 0-> first pic in gop, ... int input_picture_number; ///< used to set pic->display_picture_number int coded_picture_number; ///< used to set pic->coded_picture_number MPVPicture *input_picture[MPVENC_MAX_B_FRAMES + 1]; ///< next pictures in display order MPVPicture *reordered_input_picture[MPVENC_MAX_B_FRAMES + 1]; ///< next pictures in coded order int64_t user_specified_pts; ///< last non-zero pts from user-supplied AVFrame /** * pts difference between the first and second input frame, used for * calculating dts of the first frame when there's a delay */ int64_t dts_delta; /** * reordered pts to be used as dts for the next output frame when there's * a delay */ int64_t reordered_pts; /// temporary frames used by b_frame_strategy = 2 AVFrame *tmp_frames[MPVENC_MAX_B_FRAMES + 2]; int b_frame_strategy; int b_sensitivity; int brd_scale; int scenechange_threshold; int noise_reduction; float border_masking; int lmin, lmax; int vbv_ignore_qmax; /* MPEG-1/2 specific */ int vbv_delay_pos; ///< offset of vbv_delay in the bitstream const uint8_t *fcode_tab; ///< smallest fcode needed for each MV /* frame skip options */ int frame_skip_threshold; int frame_skip_factor; int frame_skip_exp; int frame_skip_cmp; me_cmp_func frame_skip_cmp_fn; int (*encode_picture_header)(struct MPVMainEncContext *m); /* bit rate control */ int64_t bit_rate; int64_t total_bits; int frame_bits; ///< bits used for the current frame int header_bits; int stuffing_bits; ///< bits used for stuffing int next_lambda; ///< next lambda used for retrying to encode a frame int fixed_qscale; ///< fixed qscale if non zero int last_lambda_for[5]; ///< last lambda for a specific pict type int last_pict_type; //FIXME removes int last_non_b_pict_type; ///< used for MPEG-4 gmc B-frames & ratecontrol RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c int me_penalty_compensation; int me_pre; ///< prepass for motion estimation int64_t mb_var_sum; ///< sum of MB variance for current frame int64_t mc_mb_var_sum; ///< motion compensated MB variance for current frame char *me_map_base; ///< backs MotionEstContext.(map|score_map) char *dct_error_sum_base; ///< backs dct_error_sum int16_t (*mv_table_base)[2]; } MPVMainEncContext; static inline const MPVMainEncContext *slice_to_mainenc(const MPVEncContext *s) { #ifdef NO_SLICE_THREADING_HERE av_assert2(s->c.slice_context_count <= 1 && !(s->c.avctx->codec->capabilities & AV_CODEC_CAP_SLICE_THREADS)); return (const MPVMainEncContext*)s; #else return s->parent; #endif } #define MAX_FCODE 7 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level)) #define INPLACE_OFFSET 16 /* MB types for encoding */ #define CANDIDATE_MB_TYPE_INTRA (1 << 0) #define CANDIDATE_MB_TYPE_INTER (1 << 1) #define CANDIDATE_MB_TYPE_INTER4V (1 << 2) #define CANDIDATE_MB_TYPE_SKIPPED (1 << 3) #define CANDIDATE_MB_TYPE_DIRECT (1 << 4) #define CANDIDATE_MB_TYPE_FORWARD (1 << 5) #define CANDIDATE_MB_TYPE_BACKWARD (1 << 6) #define CANDIDATE_MB_TYPE_BIDIR (1 << 7) #define CANDIDATE_MB_TYPE_INTER_I (1 << 8) #define CANDIDATE_MB_TYPE_FORWARD_I (1 << 9) #define CANDIDATE_MB_TYPE_BACKWARD_I (1 << 10) #define CANDIDATE_MB_TYPE_BIDIR_I (1 << 11) #define CANDIDATE_MB_TYPE_DIRECT0 (1 << 12) /* 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, .unit = "cmp_func" }, \ { "sse", "Sum of squared errors", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, .unit = "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, .unit = "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, .unit = "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, .unit = "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, .unit = "cmp_func" }, \ { "rd", "Rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, .unit = "cmp_func" }, \ { "zero", "Zero", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, .unit = "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, .unit = "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, .unit = "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, .unit = "cmp_func" }, \ { "dct264", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT264 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, .unit = "cmp_func" }, \ { "dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, .unit = "cmp_func" }, \ { "chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, .unit = "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, .unit = "cmp_func" } #define FF_MPV_OFFSET(x) offsetof(MPVEncContext, x) #define FF_MPV_MAIN_OFFSET(x) offsetof(MPVMainEncContext, x) #define FF_RC_OFFSET(x) offsetof(MPVMainEncContext, rc_context.x) #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, .unit = "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, .unit = "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, .unit = "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, .unit = "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, .unit = "mpv_flags" },\ { "naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "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_RC_OFFSET(qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS}, \ {"rc_qmod_amp", "experimental quantizer modulation", FF_RC_OFFSET(qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \ {"rc_qmod_freq", "experimental quantizer modulation", FF_RC_OFFSET(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_RC_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS }, \ {"rc_init_cplx", "initial complexity for 1-pass encoding", FF_RC_OFFSET(initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \ {"rc_buf_aggressivity", "currently useless", FF_RC_OFFSET(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_MAIN_OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \ {"lmin", "minimum Lagrange factor (VBR)", FF_MPV_MAIN_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 = 2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \ {"lmax", "maximum Lagrange factor (VBR)", FF_MPV_MAIN_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \ {"skip_threshold", "Frame skip threshold", FF_MPV_MAIN_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_MAIN_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_MAIN_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_MAIN_OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, .unit = "cmp_func" }, \ {"noise_reduction", "Noise reduction", FF_MPV_MAIN_OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \ {"ps", "RTP payload size in bytes", FF_MPV_OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \ #define FF_MPV_COMMON_BFRAME_OPTS \ {"b_strategy", "Strategy to choose between I/P/B-frames", FF_MPV_MAIN_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_MAIN_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_MAIN_OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 3, FF_MPV_OPT_FLAGS }, #define FF_MPV_COMMON_MOTION_EST_OPTS \ { "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, .unit = "mpv_flags" },\ {"motion_est", "motion estimation algorithm", FF_MPV_OFFSET(me.motion_est), AV_OPT_TYPE_INT, {.i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_XONE, FF_MPV_OPT_FLAGS, .unit = "motion_est" }, \ { "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "motion_est" }, \ { "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "motion_est" }, \ { "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "motion_est" }, \ {"mepc", "Motion estimation bitrate penalty compensation (1.0 = 256)", FF_MPV_MAIN_OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \ {"mepre", "pre motion estimation", FF_MPV_MAIN_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 }, \ {"sc_threshold", "Scene change threshold", FF_MPV_MAIN_OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \ extern const AVClass ff_mpv_enc_class; int ff_mpv_encode_init(AVCodecContext *avctx); int ff_mpv_encode_end(AVCodecContext *avctx); int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet); int ff_mpv_reallocate_putbitbuffer(MPVEncContext *s, size_t threshold, size_t size_increase); void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix); void ff_dct_encode_init(MPVEncContext *s); void ff_mpvenc_dct_init_mips(MPVEncContext *s); void ff_dct_encode_init_x86(MPVEncContext *s); void ff_convert_matrix(MPVEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[2][64], const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra); void ff_block_permute(int16_t *block, const uint8_t *permutation, const uint8_t *scantable, int last); static inline int get_bits_diff(MPVEncContext *s) { const int bits = put_bits_count(&s->pb); const int last = s->last_bits; s->last_bits = bits; return bits - last; } #endif