diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 19e5925be3..421eebe0de 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -18,7 +18,7 @@ OBJS= bitstream.o \ dsputil.o \ motion_est.o \ imgconvert.o \ - mpeg12.o \ + mpeg12.o mpeg12data.o \ simple_idct.o \ ratecontrol.o \ eval.o \ @@ -111,6 +111,8 @@ OBJS-$(CONFIG_MP3_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mp OBJS-$(CONFIG_MP3ADU_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o OBJS-$(CONFIG_MP3ON4_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o OBJS-$(CONFIG_MPC7_DECODER) += mpc.o mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o +OBJS-$(CONFIG_MPEG1VIDEO_ENCODER) += mpeg12enc.o mpeg12data.o +OBJS-$(CONFIG_MPEG2VIDEO_ENCODER) += mpeg12enc.o mpeg12data.o OBJS-$(CONFIG_MSMPEG4V1_DECODER) += msmpeg4.o msmpeg4data.o OBJS-$(CONFIG_MSMPEG4V1_ENCODER) += msmpeg4.o msmpeg4data.o OBJS-$(CONFIG_MSMPEG4V2_DECODER) += msmpeg4.o msmpeg4data.o diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c index c71092b12a..9477ce9f22 100644 --- a/libavcodec/mpeg12.c +++ b/libavcodec/mpeg12.c @@ -1,5 +1,5 @@ /* - * MPEG1 codec / MPEG2 decoder + * MPEG1/2 decoder * Copyright (c) 2000,2001 Fabrice Bellard. * Copyright (c) 2002-2004 Michael Niedermayer * @@ -22,7 +22,7 @@ /** * @file mpeg12.c - * MPEG1/2 codec + * MPEG1/2 decoder */ //#define DEBUG @@ -30,7 +30,9 @@ #include "dsputil.h" #include "mpegvideo.h" +#include "mpeg12.h" #include "mpeg12data.h" +#include "mpeg12decdata.h" #include "bytestream.h" //#undef NDEBUG @@ -45,12 +47,6 @@ #define MB_BTYPE_VLC_BITS 6 #define TEX_VLC_BITS 9 -#ifdef CONFIG_ENCODERS -static void mpeg1_encode_block(MpegEncContext *s, - DCTELEM *block, - int component); -static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code); // RAL: f_code parameter added -#endif //CONFIG_ENCODERS static inline int mpeg1_decode_block_inter(MpegEncContext *s, DCTELEM *block, int n); @@ -81,22 +77,8 @@ static const enum PixelFormat pixfmt_xvmc_mpg2_420[] = { PIX_FMT_XVMC_MPEG2_IDCT, PIX_FMT_XVMC_MPEG2_MC, -1}; -#ifdef CONFIG_ENCODERS -static uint8_t mv_penalty[MAX_FCODE+1][MAX_MV*2+1]; -static uint8_t fcode_tab[MAX_MV*2+1]; -static uint8_t uni_mpeg1_ac_vlc_len [64*64*2]; -static uint8_t uni_mpeg2_ac_vlc_len [64*64*2]; - -/* simple include everything table for dc, first byte is bits number next 3 are code*/ -static uint32_t mpeg1_lum_dc_uni[512]; -static uint32_t mpeg1_chr_dc_uni[512]; - -static uint8_t mpeg1_index_run[2][64]; -static int8_t mpeg1_max_level[2][64]; -#endif //CONFIG_ENCODERS - -static uint8_t static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3]; +uint8_t static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3]; static void init_2d_vlc_rl(RLTable *rl, int use_static) { @@ -140,260 +122,7 @@ static void init_2d_vlc_rl(RLTable *rl, int use_static) } } -#ifdef CONFIG_ENCODERS -static void init_uni_ac_vlc(RLTable *rl, uint8_t *uni_ac_vlc_len){ - int i; - - for(i=0; i<128; i++){ - int level= i-64; - int run; - for(run=0; run<64; run++){ - int len, bits, code; - - int alevel= FFABS(level); - int sign= (level>>31)&1; - - if (alevel > rl->max_level[0][run]) - code= 111; /*rl->n*/ - else - code= rl->index_run[0][run] + alevel - 1; - - if (code < 111 /* rl->n */) { - /* store the vlc & sign at once */ - len= rl->table_vlc[code][1]+1; - bits= (rl->table_vlc[code][0]<<1) + sign; - } else { - len= rl->table_vlc[111/*rl->n*/][1]+6; - bits= rl->table_vlc[111/*rl->n*/][0]<<6; - - bits|= run; - if (alevel < 128) { - bits<<=8; len+=8; - bits|= level & 0xff; - } else { - bits<<=16; len+=16; - bits|= level & 0xff; - if (level < 0) { - bits|= 0x8001 + level + 255; - } else { - bits|= level & 0xffff; - } - } - } - - uni_ac_vlc_len [UNI_AC_ENC_INDEX(run, i)]= len; - } - } -} - - -static int find_frame_rate_index(MpegEncContext *s){ - int i; - int64_t dmin= INT64_MAX; - int64_t d; - - for(i=1;i<14;i++) { - int64_t n0= 1001LL/ff_frame_rate_tab[i].den*ff_frame_rate_tab[i].num*s->avctx->time_base.num; - int64_t n1= 1001LL*s->avctx->time_base.den; - if(s->avctx->strict_std_compliance > FF_COMPLIANCE_INOFFICIAL && i>=9) break; - - d = FFABS(n0 - n1); - if(d < dmin){ - dmin=d; - s->frame_rate_index= i; - } - } - if(dmin) - return -1; - else - return 0; -} - -static int encode_init(AVCodecContext *avctx) -{ - MpegEncContext *s = avctx->priv_data; - - if(MPV_encode_init(avctx) < 0) - return -1; - - if(find_frame_rate_index(s) < 0){ - if(s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){ - av_log(avctx, AV_LOG_ERROR, "MPEG1/2 does not support %d/%d fps\n", avctx->time_base.den, avctx->time_base.num); - return -1; - }else{ - av_log(avctx, AV_LOG_INFO, "MPEG1/2 does not support %d/%d fps, there may be AV sync issues\n", avctx->time_base.den, avctx->time_base.num); - } - } - - if(avctx->profile == FF_PROFILE_UNKNOWN){ - if(avctx->level != FF_LEVEL_UNKNOWN){ - av_log(avctx, AV_LOG_ERROR, "Set profile and level\n"); - return -1; - } - avctx->profile = s->chroma_format == CHROMA_420 ? 4 : 0; /* Main or 4:2:2 */ - } - - if(avctx->level == FF_LEVEL_UNKNOWN){ - if(avctx->profile == 0){ /* 4:2:2 */ - if(avctx->width <= 720 && avctx->height <= 608) avctx->level = 5; /* Main */ - else avctx->level = 2; /* High */ - }else{ - if(avctx->profile != 1 && s->chroma_format != CHROMA_420){ - av_log(avctx, AV_LOG_ERROR, "Only High(1) and 4:2:2(0) profiles support 4:2:2 color sampling\n"); - return -1; - } - if(avctx->width <= 720 && avctx->height <= 576) avctx->level = 8; /* Main */ - else if(avctx->width <= 1440) avctx->level = 6; /* High 1440 */ - else avctx->level = 4; /* High */ - } - } - - if((avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE) && s->frame_rate_index != 4){ - av_log(avctx, AV_LOG_ERROR, "Drop frame time code only allowed with 1001/30000 fps\n"); - return -1; - } - - return 0; -} - -static void put_header(MpegEncContext *s, int header) -{ - align_put_bits(&s->pb); - put_bits(&s->pb, 16, header>>16); - put_bits(&s->pb, 16, header&0xFFFF); -} - -/* put sequence header if needed */ -static void mpeg1_encode_sequence_header(MpegEncContext *s) -{ - unsigned int vbv_buffer_size; - unsigned int fps, v; - int i; - uint64_t time_code; - float best_aspect_error= 1E10; - float aspect_ratio= av_q2d(s->avctx->sample_aspect_ratio); - int constraint_parameter_flag; - - if(aspect_ratio==0.0) aspect_ratio= 1.0; //pixel aspect 1:1 (VGA) - - if (s->current_picture.key_frame) { - AVRational framerate= ff_frame_rate_tab[s->frame_rate_index]; - - /* mpeg1 header repeated every gop */ - put_header(s, SEQ_START_CODE); - - put_bits(&s->pb, 12, s->width); - put_bits(&s->pb, 12, s->height); - - for(i=1; i<15; i++){ - float error= aspect_ratio; - if(s->codec_id == CODEC_ID_MPEG1VIDEO || i <=1) - error-= 1.0/mpeg1_aspect[i]; - else - error-= av_q2d(mpeg2_aspect[i])*s->height/s->width; - - error= FFABS(error); - - if(error < best_aspect_error){ - best_aspect_error= error; - s->aspect_ratio_info= i; - } - } - - put_bits(&s->pb, 4, s->aspect_ratio_info); - put_bits(&s->pb, 4, s->frame_rate_index); - - if(s->avctx->rc_max_rate){ - v = (s->avctx->rc_max_rate + 399) / 400; - if (v > 0x3ffff && s->codec_id == CODEC_ID_MPEG1VIDEO) - v = 0x3ffff; - }else{ - v= 0x3FFFF; - } - - if(s->avctx->rc_buffer_size) - vbv_buffer_size = s->avctx->rc_buffer_size; - else - /* VBV calculation: Scaled so that a VCD has the proper VBV size of 40 kilobytes */ - vbv_buffer_size = (( 20 * s->bit_rate) / (1151929 / 2)) * 8 * 1024; - vbv_buffer_size= (vbv_buffer_size + 16383) / 16384; - - put_bits(&s->pb, 18, v & 0x3FFFF); - put_bits(&s->pb, 1, 1); /* marker */ - put_bits(&s->pb, 10, vbv_buffer_size & 0x3FF); - - constraint_parameter_flag= - s->width <= 768 && s->height <= 576 && - s->mb_width * s->mb_height <= 396 && - s->mb_width * s->mb_height * framerate.num <= framerate.den*396*25 && - framerate.num <= framerate.den*30 && - s->avctx->me_range && s->avctx->me_range < 128 && - vbv_buffer_size <= 20 && - v <= 1856000/400 && - s->codec_id == CODEC_ID_MPEG1VIDEO; - - put_bits(&s->pb, 1, constraint_parameter_flag); - - ff_write_quant_matrix(&s->pb, s->avctx->intra_matrix); - ff_write_quant_matrix(&s->pb, s->avctx->inter_matrix); - - if(s->codec_id == CODEC_ID_MPEG2VIDEO){ - put_header(s, EXT_START_CODE); - put_bits(&s->pb, 4, 1); //seq ext - - put_bits(&s->pb, 1, s->avctx->profile == 0); //escx 1 for 4:2:2 profile */ - - put_bits(&s->pb, 3, s->avctx->profile); //profile - put_bits(&s->pb, 4, s->avctx->level); //level - - put_bits(&s->pb, 1, s->progressive_sequence); - put_bits(&s->pb, 2, s->chroma_format); - put_bits(&s->pb, 2, 0); //horizontal size ext - put_bits(&s->pb, 2, 0); //vertical size ext - put_bits(&s->pb, 12, v>>18); //bitrate ext - put_bits(&s->pb, 1, 1); //marker - put_bits(&s->pb, 8, vbv_buffer_size >>10); //vbv buffer ext - put_bits(&s->pb, 1, s->low_delay); - put_bits(&s->pb, 2, 0); // frame_rate_ext_n - put_bits(&s->pb, 5, 0); // frame_rate_ext_d - } - - put_header(s, GOP_START_CODE); - put_bits(&s->pb, 1, !!(s->avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE)); /* drop frame flag */ - /* time code : we must convert from the real frame rate to a - fake mpeg frame rate in case of low frame rate */ - fps = (framerate.num + framerate.den/2)/ framerate.den; - time_code = s->current_picture_ptr->coded_picture_number + s->avctx->timecode_frame_start; - - s->gop_picture_number = s->current_picture_ptr->coded_picture_number; - if (s->avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE) { - /* only works for NTSC 29.97 */ - int d = time_code / 17982; - int m = time_code % 17982; - //if (m < 2) m += 2; /* not needed since -2,-1 / 1798 in C returns 0 */ - time_code += 18 * d + 2 * ((m - 2) / 1798); - } - put_bits(&s->pb, 5, (uint32_t)((time_code / (fps * 3600)) % 24)); - put_bits(&s->pb, 6, (uint32_t)((time_code / (fps * 60)) % 60)); - put_bits(&s->pb, 1, 1); - put_bits(&s->pb, 6, (uint32_t)((time_code / fps) % 60)); - put_bits(&s->pb, 6, (uint32_t)((time_code % fps))); - put_bits(&s->pb, 1, !!(s->flags & CODEC_FLAG_CLOSED_GOP)); - put_bits(&s->pb, 1, 0); /* broken link */ - } -} - -static inline void encode_mb_skip_run(MpegEncContext *s, int run){ - while (run >= 33) { - put_bits(&s->pb, 11, 0x008); - run -= 33; - } - put_bits(&s->pb, mbAddrIncrTable[run][1], - mbAddrIncrTable[run][0]); -} -#endif //CONFIG_ENCODERS - -static void common_init(MpegEncContext *s) +void common_init(MpegEncContext *s) { s->y_dc_scale_table= @@ -408,621 +137,6 @@ void ff_mpeg1_clean_buffers(MpegEncContext *s){ memset(s->last_mv, 0, sizeof(s->last_mv)); } -#ifdef CONFIG_ENCODERS - -static av_always_inline void put_qscale(MpegEncContext *s) -{ - if(s->q_scale_type){ - assert(s->qscale>=1 && s->qscale <=12); - put_bits(&s->pb, 5, inv_non_linear_qscale[s->qscale]); - }else{ - put_bits(&s->pb, 5, s->qscale); - } -} - -void ff_mpeg1_encode_slice_header(MpegEncContext *s){ - put_header(s, SLICE_MIN_START_CODE + s->mb_y); - put_qscale(s); - put_bits(&s->pb, 1, 0); /* slice extra information */ -} - -void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number) -{ - mpeg1_encode_sequence_header(s); - - /* mpeg1 picture header */ - put_header(s, PICTURE_START_CODE); - /* temporal reference */ - - // RAL: s->picture_number instead of s->fake_picture_number - put_bits(&s->pb, 10, (s->picture_number - - s->gop_picture_number) & 0x3ff); - put_bits(&s->pb, 3, s->pict_type); - - s->vbv_delay_ptr= s->pb.buf + put_bits_count(&s->pb)/8; - put_bits(&s->pb, 16, 0xFFFF); /* vbv_delay */ - - // RAL: Forward f_code also needed for B frames - if (s->pict_type == P_TYPE || s->pict_type == B_TYPE) { - put_bits(&s->pb, 1, 0); /* half pel coordinates */ - if(s->codec_id == CODEC_ID_MPEG1VIDEO) - put_bits(&s->pb, 3, s->f_code); /* forward_f_code */ - else - put_bits(&s->pb, 3, 7); /* forward_f_code */ - } - - // RAL: Backward f_code necessary for B frames - if (s->pict_type == B_TYPE) { - put_bits(&s->pb, 1, 0); /* half pel coordinates */ - if(s->codec_id == CODEC_ID_MPEG1VIDEO) - put_bits(&s->pb, 3, s->b_code); /* backward_f_code */ - else - put_bits(&s->pb, 3, 7); /* backward_f_code */ - } - - put_bits(&s->pb, 1, 0); /* extra bit picture */ - - s->frame_pred_frame_dct = 1; - if(s->codec_id == CODEC_ID_MPEG2VIDEO){ - put_header(s, EXT_START_CODE); - put_bits(&s->pb, 4, 8); //pic ext - if (s->pict_type == P_TYPE || s->pict_type == B_TYPE) { - put_bits(&s->pb, 4, s->f_code); - put_bits(&s->pb, 4, s->f_code); - }else{ - put_bits(&s->pb, 8, 255); - } - if (s->pict_type == B_TYPE) { - put_bits(&s->pb, 4, s->b_code); - put_bits(&s->pb, 4, s->b_code); - }else{ - put_bits(&s->pb, 8, 255); - } - put_bits(&s->pb, 2, s->intra_dc_precision); - - assert(s->picture_structure == PICT_FRAME); - put_bits(&s->pb, 2, s->picture_structure); - if (s->progressive_sequence) { - put_bits(&s->pb, 1, 0); /* no repeat */ - } else { - put_bits(&s->pb, 1, s->current_picture_ptr->top_field_first); - } - /* XXX: optimize the generation of this flag with entropy - measures */ - s->frame_pred_frame_dct = s->progressive_sequence; - - put_bits(&s->pb, 1, s->frame_pred_frame_dct); - put_bits(&s->pb, 1, s->concealment_motion_vectors); - put_bits(&s->pb, 1, s->q_scale_type); - put_bits(&s->pb, 1, s->intra_vlc_format); - put_bits(&s->pb, 1, s->alternate_scan); - put_bits(&s->pb, 1, s->repeat_first_field); - s->progressive_frame = s->progressive_sequence; - put_bits(&s->pb, 1, s->chroma_format == CHROMA_420 ? s->progressive_frame : 0); /* chroma_420_type */ - put_bits(&s->pb, 1, s->progressive_frame); - put_bits(&s->pb, 1, 0); //composite_display_flag - } - if(s->flags & CODEC_FLAG_SVCD_SCAN_OFFSET){ - int i; - - put_header(s, USER_START_CODE); - for(i=0; ipb, 8, svcd_scan_offset_placeholder[i]); - } - } - - s->mb_y=0; - ff_mpeg1_encode_slice_header(s); -} - -static inline void put_mb_modes(MpegEncContext *s, int n, int bits, - int has_mv, int field_motion) -{ - put_bits(&s->pb, n, bits); - if (!s->frame_pred_frame_dct) { - if (has_mv) - put_bits(&s->pb, 2, 2 - field_motion); /* motion_type: frame/field */ - put_bits(&s->pb, 1, s->interlaced_dct); - } -} - -static av_always_inline void mpeg1_encode_mb_internal(MpegEncContext *s, - DCTELEM block[6][64], - int motion_x, int motion_y, - int mb_block_count) -{ - int i, cbp; - const int mb_x = s->mb_x; - const int mb_y = s->mb_y; - const int first_mb= mb_x == s->resync_mb_x && mb_y == s->resync_mb_y; - - /* compute cbp */ - cbp = 0; - for(i=0;iblock_last_index[i] >= 0) - cbp |= 1 << (mb_block_count - 1 - i); - } - - if (cbp == 0 && !first_mb && s->mv_type == MV_TYPE_16X16 && - (mb_x != s->mb_width - 1 || (mb_y != s->mb_height - 1 && s->codec_id == CODEC_ID_MPEG1VIDEO)) && - ((s->pict_type == P_TYPE && (motion_x | motion_y) == 0) || - (s->pict_type == B_TYPE && s->mv_dir == s->last_mv_dir && (((s->mv_dir & MV_DIR_FORWARD) ? ((s->mv[0][0][0] - s->last_mv[0][0][0])|(s->mv[0][0][1] - s->last_mv[0][0][1])) : 0) | - ((s->mv_dir & MV_DIR_BACKWARD) ? ((s->mv[1][0][0] - s->last_mv[1][0][0])|(s->mv[1][0][1] - s->last_mv[1][0][1])) : 0)) == 0))) { - s->mb_skip_run++; - s->qscale -= s->dquant; - s->skip_count++; - s->misc_bits++; - s->last_bits++; - if(s->pict_type == P_TYPE){ - s->last_mv[0][1][0]= s->last_mv[0][0][0]= - s->last_mv[0][1][1]= s->last_mv[0][0][1]= 0; - } - } else { - if(first_mb){ - assert(s->mb_skip_run == 0); - encode_mb_skip_run(s, s->mb_x); - }else{ - encode_mb_skip_run(s, s->mb_skip_run); - } - - if (s->pict_type == I_TYPE) { - if(s->dquant && cbp){ - put_mb_modes(s, 2, 1, 0, 0); /* macroblock_type : macroblock_quant = 1 */ - put_qscale(s); - }else{ - put_mb_modes(s, 1, 1, 0, 0); /* macroblock_type : macroblock_quant = 0 */ - s->qscale -= s->dquant; - } - s->misc_bits+= get_bits_diff(s); - s->i_count++; - } else if (s->mb_intra) { - if(s->dquant && cbp){ - put_mb_modes(s, 6, 0x01, 0, 0); - put_qscale(s); - }else{ - put_mb_modes(s, 5, 0x03, 0, 0); - s->qscale -= s->dquant; - } - s->misc_bits+= get_bits_diff(s); - s->i_count++; - memset(s->last_mv, 0, sizeof(s->last_mv)); - } else if (s->pict_type == P_TYPE) { - if(s->mv_type == MV_TYPE_16X16){ - if (cbp != 0) { - if ((motion_x|motion_y) == 0) { - if(s->dquant){ - put_mb_modes(s, 5, 1, 0, 0); /* macroblock_pattern & quant */ - put_qscale(s); - }else{ - put_mb_modes(s, 2, 1, 0, 0); /* macroblock_pattern only */ - } - s->misc_bits+= get_bits_diff(s); - } else { - if(s->dquant){ - put_mb_modes(s, 5, 2, 1, 0); /* motion + cbp */ - put_qscale(s); - }else{ - put_mb_modes(s, 1, 1, 1, 0); /* motion + cbp */ - } - s->misc_bits+= get_bits_diff(s); - mpeg1_encode_motion(s, motion_x - s->last_mv[0][0][0], s->f_code); // RAL: f_code parameter added - mpeg1_encode_motion(s, motion_y - s->last_mv[0][0][1], s->f_code); // RAL: f_code parameter added - s->mv_bits+= get_bits_diff(s); - } - } else { - put_bits(&s->pb, 3, 1); /* motion only */ - if (!s->frame_pred_frame_dct) - put_bits(&s->pb, 2, 2); /* motion_type: frame */ - s->misc_bits+= get_bits_diff(s); - mpeg1_encode_motion(s, motion_x - s->last_mv[0][0][0], s->f_code); // RAL: f_code parameter added - mpeg1_encode_motion(s, motion_y - s->last_mv[0][0][1], s->f_code); // RAL: f_code parameter added - s->qscale -= s->dquant; - s->mv_bits+= get_bits_diff(s); - } - s->last_mv[0][1][0]= s->last_mv[0][0][0]= motion_x; - s->last_mv[0][1][1]= s->last_mv[0][0][1]= motion_y; - }else{ - assert(!s->frame_pred_frame_dct && s->mv_type == MV_TYPE_FIELD); - - if (cbp) { - if(s->dquant){ - put_mb_modes(s, 5, 2, 1, 1); /* motion + cbp */ - put_qscale(s); - }else{ - put_mb_modes(s, 1, 1, 1, 1); /* motion + cbp */ - } - } else { - put_bits(&s->pb, 3, 1); /* motion only */ - put_bits(&s->pb, 2, 1); /* motion_type: field */ - s->qscale -= s->dquant; - } - s->misc_bits+= get_bits_diff(s); - for(i=0; i<2; i++){ - put_bits(&s->pb, 1, s->field_select[0][i]); - mpeg1_encode_motion(s, s->mv[0][i][0] - s->last_mv[0][i][0] , s->f_code); - mpeg1_encode_motion(s, s->mv[0][i][1] - (s->last_mv[0][i][1]>>1), s->f_code); - s->last_mv[0][i][0]= s->mv[0][i][0]; - s->last_mv[0][i][1]= 2*s->mv[0][i][1]; - } - s->mv_bits+= get_bits_diff(s); - } - if(cbp) { - if (s->chroma_y_shift) { - put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]); - } else { - put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]); - put_bits(&s->pb, 2, cbp & 3); - } - } - s->f_count++; - } else{ - static const int mb_type_len[4]={0,3,4,2}; //bak,for,bi - - if(s->mv_type == MV_TYPE_16X16){ - if (cbp){ // With coded bloc pattern - if (s->dquant) { - if(s->mv_dir == MV_DIR_FORWARD) - put_mb_modes(s, 6, 3, 1, 0); - else - put_mb_modes(s, mb_type_len[s->mv_dir]+3, 2, 1, 0); - put_qscale(s); - } else { - put_mb_modes(s, mb_type_len[s->mv_dir], 3, 1, 0); - } - }else{ // No coded bloc pattern - put_bits(&s->pb, mb_type_len[s->mv_dir], 2); - if (!s->frame_pred_frame_dct) - put_bits(&s->pb, 2, 2); /* motion_type: frame */ - s->qscale -= s->dquant; - } - s->misc_bits += get_bits_diff(s); - if (s->mv_dir&MV_DIR_FORWARD){ - mpeg1_encode_motion(s, s->mv[0][0][0] - s->last_mv[0][0][0], s->f_code); - mpeg1_encode_motion(s, s->mv[0][0][1] - s->last_mv[0][0][1], s->f_code); - s->last_mv[0][0][0]=s->last_mv[0][1][0]= s->mv[0][0][0]; - s->last_mv[0][0][1]=s->last_mv[0][1][1]= s->mv[0][0][1]; - s->f_count++; - } - if (s->mv_dir&MV_DIR_BACKWARD){ - mpeg1_encode_motion(s, s->mv[1][0][0] - s->last_mv[1][0][0], s->b_code); - mpeg1_encode_motion(s, s->mv[1][0][1] - s->last_mv[1][0][1], s->b_code); - s->last_mv[1][0][0]=s->last_mv[1][1][0]= s->mv[1][0][0]; - s->last_mv[1][0][1]=s->last_mv[1][1][1]= s->mv[1][0][1]; - s->b_count++; - } - }else{ - assert(s->mv_type == MV_TYPE_FIELD); - assert(!s->frame_pred_frame_dct); - if (cbp){ // With coded bloc pattern - if (s->dquant) { - if(s->mv_dir == MV_DIR_FORWARD) - put_mb_modes(s, 6, 3, 1, 1); - else - put_mb_modes(s, mb_type_len[s->mv_dir]+3, 2, 1, 1); - put_qscale(s); - } else { - put_mb_modes(s, mb_type_len[s->mv_dir], 3, 1, 1); - } - }else{ // No coded bloc pattern - put_bits(&s->pb, mb_type_len[s->mv_dir], 2); - put_bits(&s->pb, 2, 1); /* motion_type: field */ - s->qscale -= s->dquant; - } - s->misc_bits += get_bits_diff(s); - if (s->mv_dir&MV_DIR_FORWARD){ - for(i=0; i<2; i++){ - put_bits(&s->pb, 1, s->field_select[0][i]); - mpeg1_encode_motion(s, s->mv[0][i][0] - s->last_mv[0][i][0] , s->f_code); - mpeg1_encode_motion(s, s->mv[0][i][1] - (s->last_mv[0][i][1]>>1), s->f_code); - s->last_mv[0][i][0]= s->mv[0][i][0]; - s->last_mv[0][i][1]= 2*s->mv[0][i][1]; - } - s->f_count++; - } - if (s->mv_dir&MV_DIR_BACKWARD){ - for(i=0; i<2; i++){ - put_bits(&s->pb, 1, s->field_select[1][i]); - mpeg1_encode_motion(s, s->mv[1][i][0] - s->last_mv[1][i][0] , s->b_code); - mpeg1_encode_motion(s, s->mv[1][i][1] - (s->last_mv[1][i][1]>>1), s->b_code); - s->last_mv[1][i][0]= s->mv[1][i][0]; - s->last_mv[1][i][1]= 2*s->mv[1][i][1]; - } - s->b_count++; - } - } - s->mv_bits += get_bits_diff(s); - if(cbp) { - if (s->chroma_y_shift) { - put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]); - } else { - put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]); - put_bits(&s->pb, 2, cbp & 3); - } - } - } - for(i=0;imb_skip_run = 0; - if(s->mb_intra) - s->i_tex_bits+= get_bits_diff(s); - else - s->p_tex_bits+= get_bits_diff(s); - } -} - -void mpeg1_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y) -{ - if (s->chroma_format == CHROMA_420) mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 6); - else mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 8); -} - -// RAL: Parameter added: f_or_b_code -static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code) -{ - int code, bit_size, l, bits, range, sign; - - if (val == 0) { - /* zero vector */ - code = 0; - put_bits(&s->pb, - mbMotionVectorTable[0][1], - mbMotionVectorTable[0][0]); - } else { - bit_size = f_or_b_code - 1; - range = 1 << bit_size; - /* modulo encoding */ - l= INT_BIT - 5 - bit_size; - val= (val<>l; - - if (val >= 0) { - val--; - code = (val >> bit_size) + 1; - bits = val & (range - 1); - sign = 0; - } else { - val = -val; - val--; - code = (val >> bit_size) + 1; - bits = val & (range - 1); - sign = 1; - } - - assert(code > 0 && code <= 16); - - put_bits(&s->pb, - mbMotionVectorTable[code][1], - mbMotionVectorTable[code][0]); - - put_bits(&s->pb, 1, sign); - if (bit_size > 0) { - put_bits(&s->pb, bit_size, bits); - } - } -} - -void ff_mpeg1_encode_init(MpegEncContext *s) -{ - static int done=0; - - common_init(s); - - if(!done){ - int f_code; - int mv; - int i; - - done=1; - init_rl(&rl_mpeg1, static_rl_table_store[0]); - init_rl(&rl_mpeg2, static_rl_table_store[1]); - - for(i=0; i<64; i++) - { - mpeg1_max_level[0][i]= rl_mpeg1.max_level[0][i]; - mpeg1_index_run[0][i]= rl_mpeg1.index_run[0][i]; - } - - init_uni_ac_vlc(&rl_mpeg1, uni_mpeg1_ac_vlc_len); - if(s->intra_vlc_format) - init_uni_ac_vlc(&rl_mpeg2, uni_mpeg2_ac_vlc_len); - - /* build unified dc encoding tables */ - for(i=-255; i<256; i++) - { - int adiff, index; - int bits, code; - int diff=i; - - adiff = FFABS(diff); - if(diff<0) diff--; - index = av_log2(2*adiff); - - bits= vlc_dc_lum_bits[index] + index; - code= (vlc_dc_lum_code[index]<> bit_size) + 1; - if(code<17){ - len= mbMotionVectorTable[code][1] + 1 + bit_size; - }else{ - len= mbMotionVectorTable[16][1] + 2 + bit_size; - } - } - - mv_penalty[f_code][mv+MAX_MV]= len; - } - } - - - for(f_code=MAX_FCODE; f_code>0; f_code--){ - for(mv=-(8<me.mv_penalty= mv_penalty; - s->fcode_tab= fcode_tab; - if(s->codec_id == CODEC_ID_MPEG1VIDEO){ - s->min_qcoeff=-255; - s->max_qcoeff= 255; - }else{ - s->min_qcoeff=-2047; - s->max_qcoeff= 2047; - } - if (s->intra_vlc_format) { - s->intra_ac_vlc_length= - s->intra_ac_vlc_last_length= uni_mpeg2_ac_vlc_len; - } else { - s->intra_ac_vlc_length= - s->intra_ac_vlc_last_length= uni_mpeg1_ac_vlc_len; - } - s->inter_ac_vlc_length= - s->inter_ac_vlc_last_length= uni_mpeg1_ac_vlc_len; -} - -static inline void encode_dc(MpegEncContext *s, int diff, int component) -{ - if(((unsigned) (diff+255)) >= 511){ - int index; - - if(diff<0){ - index= av_log2_16bit(-2*diff); - diff--; - }else{ - index= av_log2_16bit(2*diff); - } - if (component == 0) { - put_bits( - &s->pb, - vlc_dc_lum_bits[index] + index, - (vlc_dc_lum_code[index]<pb, - vlc_dc_chroma_bits[index] + index, - (vlc_dc_chroma_code[index]<pb, - mpeg1_lum_dc_uni[diff+255]&0xFF, - mpeg1_lum_dc_uni[diff+255]>>8); - } else { - put_bits( - &s->pb, - mpeg1_chr_dc_uni[diff+255]&0xFF, - mpeg1_chr_dc_uni[diff+255]>>8); - } - } -} - -static void mpeg1_encode_block(MpegEncContext *s, - DCTELEM *block, - int n) -{ - int alevel, level, last_non_zero, dc, diff, i, j, run, last_index, sign; - int code, component; - const uint16_t (*table_vlc)[2] = rl_mpeg1.table_vlc; - - last_index = s->block_last_index[n]; - - /* DC coef */ - if (s->mb_intra) { - component = (n <= 3 ? 0 : (n&1) + 1); - dc = block[0]; /* overflow is impossible */ - diff = dc - s->last_dc[component]; - encode_dc(s, diff, component); - s->last_dc[component] = dc; - i = 1; - if (s->intra_vlc_format) - table_vlc = rl_mpeg2.table_vlc; - } else { - /* encode the first coefficient : needs to be done here because - it is handled slightly differently */ - level = block[0]; - if (abs(level) == 1) { - code = ((uint32_t)level >> 31); /* the sign bit */ - put_bits(&s->pb, 2, code | 0x02); - i = 1; - } else { - i = 0; - last_non_zero = -1; - goto next_coef; - } - } - - /* now quantify & encode AC coefs */ - last_non_zero = i - 1; - - for(;i<=last_index;i++) { - j = s->intra_scantable.permutated[i]; - level = block[j]; - next_coef: -#if 0 - if (level != 0) - dprintf(s->avctx, "level[%d]=%d\n", i, level); -#endif - /* encode using VLC */ - if (level != 0) { - run = i - last_non_zero - 1; - - alevel= level; - MASK_ABS(sign, alevel) - sign&=1; - - if (alevel <= mpeg1_max_level[0][run]){ - code= mpeg1_index_run[0][run] + alevel - 1; - /* store the vlc & sign at once */ - put_bits(&s->pb, table_vlc[code][1]+1, (table_vlc[code][0]<<1) + sign); - } else { - /* escape seems to be pretty rare <5% so I do not optimize it */ - put_bits(&s->pb, table_vlc[111][1], table_vlc[111][0]); - /* escape: only clip in this case */ - put_bits(&s->pb, 6, run); - if(s->codec_id == CODEC_ID_MPEG1VIDEO){ - if (alevel < 128) { - put_bits(&s->pb, 8, level & 0xff); - } else { - if (level < 0) { - put_bits(&s->pb, 16, 0x8001 + level + 255); - } else { - put_bits(&s->pb, 16, level & 0xffff); - } - } - }else{ - put_bits(&s->pb, 12, level & 0xfff); - } - } - last_non_zero = i; - } - } - /* end of block */ - put_bits(&s->pb, table_vlc[112][1], table_vlc[112][0]); -} -#endif //CONFIG_ENCODERS /******************************************/ /* decoding */ @@ -3288,35 +2402,6 @@ AVCodec mpegvideo_decoder = { .flush= ff_mpeg_flush, }; -#ifdef CONFIG_ENCODERS - -AVCodec mpeg1video_encoder = { - "mpeg1video", - CODEC_TYPE_VIDEO, - CODEC_ID_MPEG1VIDEO, - sizeof(MpegEncContext), - encode_init, - MPV_encode_picture, - MPV_encode_end, - .supported_framerates= ff_frame_rate_tab+1, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1}, - .capabilities= CODEC_CAP_DELAY, -}; - -AVCodec mpeg2video_encoder = { - "mpeg2video", - CODEC_TYPE_VIDEO, - CODEC_ID_MPEG2VIDEO, - sizeof(MpegEncContext), - encode_init, - MPV_encode_picture, - MPV_encode_end, - .supported_framerates= ff_frame_rate_tab+1, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, -1}, - .capabilities= CODEC_CAP_DELAY, -}; -#endif - #ifdef HAVE_XVMC static int mpeg_mc_decode_init(AVCodecContext *avctx){ Mpeg1Context *s; diff --git a/libavcodec/mpeg12data.c b/libavcodec/mpeg12data.c new file mode 100644 index 0000000000..7f39586cf3 --- /dev/null +++ b/libavcodec/mpeg12data.c @@ -0,0 +1,374 @@ +/* + * MPEG1/2 tables + * copyright (c) 2000,2001 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 mpeg12data.c + * MPEG1/2 tables. + */ + +#include "mpeg12data.h" + +const uint16_t ff_mpeg1_default_intra_matrix[64] = { + 8, 16, 19, 22, 26, 27, 29, 34, + 16, 16, 22, 24, 27, 29, 34, 37, + 19, 22, 26, 27, 29, 34, 34, 38, + 22, 22, 26, 27, 29, 34, 37, 40, + 22, 26, 27, 29, 32, 35, 40, 48, + 26, 27, 29, 32, 35, 40, 48, 58, + 26, 27, 29, 34, 38, 46, 56, 69, + 27, 29, 35, 38, 46, 56, 69, 83 +}; + +const uint16_t ff_mpeg1_default_non_intra_matrix[64] = { + 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, +}; + +const uint16_t vlc_dc_lum_code[12] = { + 0x4, 0x0, 0x1, 0x5, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x1ff, +}; +const unsigned char vlc_dc_lum_bits[12] = { + 3, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 9, +}; + +const uint16_t vlc_dc_chroma_code[12] = { + 0x0, 0x1, 0x2, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x3fe, 0x3ff, +}; +const unsigned char vlc_dc_chroma_bits[12] = { + 2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, +}; + +static const uint16_t mpeg1_vlc[113][2] = { + { 0x3, 2 }, { 0x4, 4 }, { 0x5, 5 }, { 0x6, 7 }, + { 0x26, 8 }, { 0x21, 8 }, { 0xa, 10 }, { 0x1d, 12 }, + { 0x18, 12 }, { 0x13, 12 }, { 0x10, 12 }, { 0x1a, 13 }, + { 0x19, 13 }, { 0x18, 13 }, { 0x17, 13 }, { 0x1f, 14 }, + { 0x1e, 14 }, { 0x1d, 14 }, { 0x1c, 14 }, { 0x1b, 14 }, + { 0x1a, 14 }, { 0x19, 14 }, { 0x18, 14 }, { 0x17, 14 }, + { 0x16, 14 }, { 0x15, 14 }, { 0x14, 14 }, { 0x13, 14 }, + { 0x12, 14 }, { 0x11, 14 }, { 0x10, 14 }, { 0x18, 15 }, + { 0x17, 15 }, { 0x16, 15 }, { 0x15, 15 }, { 0x14, 15 }, + { 0x13, 15 }, { 0x12, 15 }, { 0x11, 15 }, { 0x10, 15 }, + { 0x3, 3 }, { 0x6, 6 }, { 0x25, 8 }, { 0xc, 10 }, + { 0x1b, 12 }, { 0x16, 13 }, { 0x15, 13 }, { 0x1f, 15 }, + { 0x1e, 15 }, { 0x1d, 15 }, { 0x1c, 15 }, { 0x1b, 15 }, + { 0x1a, 15 }, { 0x19, 15 }, { 0x13, 16 }, { 0x12, 16 }, + { 0x11, 16 }, { 0x10, 16 }, { 0x5, 4 }, { 0x4, 7 }, + { 0xb, 10 }, { 0x14, 12 }, { 0x14, 13 }, { 0x7, 5 }, + { 0x24, 8 }, { 0x1c, 12 }, { 0x13, 13 }, { 0x6, 5 }, + { 0xf, 10 }, { 0x12, 12 }, { 0x7, 6 }, { 0x9, 10 }, + { 0x12, 13 }, { 0x5, 6 }, { 0x1e, 12 }, { 0x14, 16 }, + { 0x4, 6 }, { 0x15, 12 }, { 0x7, 7 }, { 0x11, 12 }, + { 0x5, 7 }, { 0x11, 13 }, { 0x27, 8 }, { 0x10, 13 }, + { 0x23, 8 }, { 0x1a, 16 }, { 0x22, 8 }, { 0x19, 16 }, + { 0x20, 8 }, { 0x18, 16 }, { 0xe, 10 }, { 0x17, 16 }, + { 0xd, 10 }, { 0x16, 16 }, { 0x8, 10 }, { 0x15, 16 }, + { 0x1f, 12 }, { 0x1a, 12 }, { 0x19, 12 }, { 0x17, 12 }, + { 0x16, 12 }, { 0x1f, 13 }, { 0x1e, 13 }, { 0x1d, 13 }, + { 0x1c, 13 }, { 0x1b, 13 }, { 0x1f, 16 }, { 0x1e, 16 }, + { 0x1d, 16 }, { 0x1c, 16 }, { 0x1b, 16 }, + { 0x1, 6 }, /* escape */ + { 0x2, 2 }, /* EOB */ +}; + +static const uint16_t mpeg2_vlc[113][2] = { + {0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5}, + {0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7}, + {0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8}, + {0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14}, + {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14}, + {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14}, + {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14}, + {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15}, + {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15}, + {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15}, + {0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8}, + {0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15}, + {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15}, + {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16}, + {0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7}, + {0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5}, + {0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6}, + {0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9}, + {0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16}, + {0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12}, + {0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13}, + {0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16}, + {0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16}, + {0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16}, + {0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12}, + {0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13}, + {0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16}, + {0x1d,16}, {0x1c,16}, {0x1b,16}, + {0x01,6}, /* escape */ + {0x06,4}, /* EOB */ +}; + +static const int8_t mpeg1_level[111] = { + 1, 2, 3, 4, 5, 6, 7, 8, + 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, + 33, 34, 35, 36, 37, 38, 39, 40, + 1, 2, 3, 4, 5, 6, 7, 8, + 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 1, 2, 3, 4, 5, 1, + 2, 3, 4, 1, 2, 3, 1, 2, + 3, 1, 2, 3, 1, 2, 1, 2, + 1, 2, 1, 2, 1, 2, 1, 2, + 1, 2, 1, 2, 1, 2, 1, 2, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, +}; + +static const int8_t mpeg1_run[111] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 2, 2, 2, 2, 2, 3, + 3, 3, 3, 4, 4, 4, 5, 5, + 5, 6, 6, 6, 7, 7, 8, 8, + 9, 9, 10, 10, 11, 11, 12, 12, + 13, 13, 14, 14, 15, 15, 16, 16, + 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, +}; + +RLTable rl_mpeg1 = { + 111, + 111, + mpeg1_vlc, + mpeg1_run, + mpeg1_level, +}; + +RLTable rl_mpeg2 = { + 111, + 111, + mpeg2_vlc, + mpeg1_run, + mpeg1_level, +}; + +const uint8_t mbAddrIncrTable[36][2] = { + {0x1, 1}, + {0x3, 3}, + {0x2, 3}, + {0x3, 4}, + {0x2, 4}, + {0x3, 5}, + {0x2, 5}, + {0x7, 7}, + {0x6, 7}, + {0xb, 8}, + {0xa, 8}, + {0x9, 8}, + {0x8, 8}, + {0x7, 8}, + {0x6, 8}, + {0x17, 10}, + {0x16, 10}, + {0x15, 10}, + {0x14, 10}, + {0x13, 10}, + {0x12, 10}, + {0x23, 11}, + {0x22, 11}, + {0x21, 11}, + {0x20, 11}, + {0x1f, 11}, + {0x1e, 11}, + {0x1d, 11}, + {0x1c, 11}, + {0x1b, 11}, + {0x1a, 11}, + {0x19, 11}, + {0x18, 11}, + {0x8, 11}, /* escape */ + {0xf, 11}, /* stuffing */ + {0x0, 8}, /* end (and 15 more 0 bits should follow) */ +}; + +const uint8_t mbPatTable[64][2] = { + {0x1, 9}, + {0xb, 5}, + {0x9, 5}, + {0xd, 6}, + {0xd, 4}, + {0x17, 7}, + {0x13, 7}, + {0x1f, 8}, + {0xc, 4}, + {0x16, 7}, + {0x12, 7}, + {0x1e, 8}, + {0x13, 5}, + {0x1b, 8}, + {0x17, 8}, + {0x13, 8}, + {0xb, 4}, + {0x15, 7}, + {0x11, 7}, + {0x1d, 8}, + {0x11, 5}, + {0x19, 8}, + {0x15, 8}, + {0x11, 8}, + {0xf, 6}, + {0xf, 8}, + {0xd, 8}, + {0x3, 9}, + {0xf, 5}, + {0xb, 8}, + {0x7, 8}, + {0x7, 9}, + {0xa, 4}, + {0x14, 7}, + {0x10, 7}, + {0x1c, 8}, + {0xe, 6}, + {0xe, 8}, + {0xc, 8}, + {0x2, 9}, + {0x10, 5}, + {0x18, 8}, + {0x14, 8}, + {0x10, 8}, + {0xe, 5}, + {0xa, 8}, + {0x6, 8}, + {0x6, 9}, + {0x12, 5}, + {0x1a, 8}, + {0x16, 8}, + {0x12, 8}, + {0xd, 5}, + {0x9, 8}, + {0x5, 8}, + {0x5, 9}, + {0xc, 5}, + {0x8, 8}, + {0x4, 8}, + {0x4, 9}, + {0x7, 3}, + {0xa, 5}, + {0x8, 5}, + {0xc, 6} +}; + +const uint8_t mbMotionVectorTable[17][2] = { +{ 0x1, 1 }, +{ 0x1, 2 }, +{ 0x1, 3 }, +{ 0x1, 4 }, +{ 0x3, 6 }, +{ 0x5, 7 }, +{ 0x4, 7 }, +{ 0x3, 7 }, +{ 0xb, 9 }, +{ 0xa, 9 }, +{ 0x9, 9 }, +{ 0x11, 10 }, +{ 0x10, 10 }, +{ 0xf, 10 }, +{ 0xe, 10 }, +{ 0xd, 10 }, +{ 0xc, 10 }, +}; + +const AVRational ff_frame_rate_tab[] = { + { 0, 0}, + {24000, 1001}, + { 24, 1}, + { 25, 1}, + {30000, 1001}, + { 30, 1}, + { 50, 1}, + {60000, 1001}, + { 60, 1}, + // Xing's 15fps: (9) + { 15, 1}, + // libmpeg3's "Unofficial economy rates": (10-13) + { 5, 1}, + { 10, 1}, + { 12, 1}, + { 15, 1}, + { 0, 0}, +}; + +const uint8_t ff_mpeg1_dc_scale_table[128]={ +// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, +}; + +const float mpeg1_aspect[16]={ + 0.0000, + 1.0000, + 0.6735, + 0.7031, + + 0.7615, + 0.8055, + 0.8437, + 0.8935, + + 0.9157, + 0.9815, + 1.0255, + 1.0695, + + 1.0950, + 1.1575, + 1.2015, +}; + +const AVRational mpeg2_aspect[16]={ + {0,1}, + {1,1}, + {4,3}, + {16,9}, + {221,100}, + {0,1}, + {0,1}, + {0,1}, + {0,1}, + {0,1}, + {0,1}, + {0,1}, + {0,1}, + {0,1}, + {0,1}, + {0,1}, +}; diff --git a/libavcodec/mpeg12data.h b/libavcodec/mpeg12data.h index 72ef559792..8d587540de 100644 --- a/libavcodec/mpeg12data.h +++ b/libavcodec/mpeg12data.h @@ -1,5 +1,5 @@ /* - * MPEG1 codec / MPEG2 decoder + * MPEG1/2 tables * copyright (c) 2000,2001 Fabrice Bellard * copyright (c) 2002-2004 Michael Niedermayer * @@ -31,452 +31,20 @@ #include #include "mpegvideo.h" -const uint16_t ff_mpeg1_default_intra_matrix[64] = { - 8, 16, 19, 22, 26, 27, 29, 34, - 16, 16, 22, 24, 27, 29, 34, 37, - 19, 22, 26, 27, 29, 34, 34, 38, - 22, 22, 26, 27, 29, 34, 37, 40, - 22, 26, 27, 29, 32, 35, 40, 48, - 26, 27, 29, 32, 35, 40, 48, 58, - 26, 27, 29, 34, 38, 46, 56, 69, - 27, 29, 35, 38, 46, 56, 69, 83 -}; +extern const uint16_t vlc_dc_lum_code[12]; +extern const unsigned char vlc_dc_lum_bits[12]; +extern const uint16_t vlc_dc_chroma_code[12]; +extern const unsigned char vlc_dc_chroma_bits[12]; -const uint16_t ff_mpeg1_default_non_intra_matrix[64] = { - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, -}; +extern RLTable rl_mpeg1; +extern RLTable rl_mpeg2; -static const uint16_t vlc_dc_lum_code[12] = { - 0x4, 0x0, 0x1, 0x5, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x1ff, -}; -static const unsigned char vlc_dc_lum_bits[12] = { - 3, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 9, -}; +extern const uint8_t mbAddrIncrTable[36][2]; +extern const uint8_t mbPatTable[64][2]; -static const uint16_t vlc_dc_chroma_code[12] = { - 0x0, 0x1, 0x2, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x3fe, 0x3ff, -}; -static const unsigned char vlc_dc_chroma_bits[12] = { - 2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, -}; +extern const uint8_t mbMotionVectorTable[17][2]; -static const uint16_t mpeg1_vlc[113][2] = { - { 0x3, 2 }, { 0x4, 4 }, { 0x5, 5 }, { 0x6, 7 }, - { 0x26, 8 }, { 0x21, 8 }, { 0xa, 10 }, { 0x1d, 12 }, - { 0x18, 12 }, { 0x13, 12 }, { 0x10, 12 }, { 0x1a, 13 }, - { 0x19, 13 }, { 0x18, 13 }, { 0x17, 13 }, { 0x1f, 14 }, - { 0x1e, 14 }, { 0x1d, 14 }, { 0x1c, 14 }, { 0x1b, 14 }, - { 0x1a, 14 }, { 0x19, 14 }, { 0x18, 14 }, { 0x17, 14 }, - { 0x16, 14 }, { 0x15, 14 }, { 0x14, 14 }, { 0x13, 14 }, - { 0x12, 14 }, { 0x11, 14 }, { 0x10, 14 }, { 0x18, 15 }, - { 0x17, 15 }, { 0x16, 15 }, { 0x15, 15 }, { 0x14, 15 }, - { 0x13, 15 }, { 0x12, 15 }, { 0x11, 15 }, { 0x10, 15 }, - { 0x3, 3 }, { 0x6, 6 }, { 0x25, 8 }, { 0xc, 10 }, - { 0x1b, 12 }, { 0x16, 13 }, { 0x15, 13 }, { 0x1f, 15 }, - { 0x1e, 15 }, { 0x1d, 15 }, { 0x1c, 15 }, { 0x1b, 15 }, - { 0x1a, 15 }, { 0x19, 15 }, { 0x13, 16 }, { 0x12, 16 }, - { 0x11, 16 }, { 0x10, 16 }, { 0x5, 4 }, { 0x4, 7 }, - { 0xb, 10 }, { 0x14, 12 }, { 0x14, 13 }, { 0x7, 5 }, - { 0x24, 8 }, { 0x1c, 12 }, { 0x13, 13 }, { 0x6, 5 }, - { 0xf, 10 }, { 0x12, 12 }, { 0x7, 6 }, { 0x9, 10 }, - { 0x12, 13 }, { 0x5, 6 }, { 0x1e, 12 }, { 0x14, 16 }, - { 0x4, 6 }, { 0x15, 12 }, { 0x7, 7 }, { 0x11, 12 }, - { 0x5, 7 }, { 0x11, 13 }, { 0x27, 8 }, { 0x10, 13 }, - { 0x23, 8 }, { 0x1a, 16 }, { 0x22, 8 }, { 0x19, 16 }, - { 0x20, 8 }, { 0x18, 16 }, { 0xe, 10 }, { 0x17, 16 }, - { 0xd, 10 }, { 0x16, 16 }, { 0x8, 10 }, { 0x15, 16 }, - { 0x1f, 12 }, { 0x1a, 12 }, { 0x19, 12 }, { 0x17, 12 }, - { 0x16, 12 }, { 0x1f, 13 }, { 0x1e, 13 }, { 0x1d, 13 }, - { 0x1c, 13 }, { 0x1b, 13 }, { 0x1f, 16 }, { 0x1e, 16 }, - { 0x1d, 16 }, { 0x1c, 16 }, { 0x1b, 16 }, - { 0x1, 6 }, /* escape */ - { 0x2, 2 }, /* EOB */ -}; - -static const uint16_t mpeg2_vlc[113][2] = { - {0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5}, - {0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7}, - {0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8}, - {0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14}, - {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14}, - {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14}, - {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14}, - {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15}, - {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15}, - {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15}, - {0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8}, - {0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15}, - {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15}, - {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16}, - {0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7}, - {0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5}, - {0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6}, - {0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9}, - {0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16}, - {0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12}, - {0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13}, - {0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16}, - {0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16}, - {0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16}, - {0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12}, - {0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13}, - {0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16}, - {0x1d,16}, {0x1c,16}, {0x1b,16}, - {0x01,6}, /* escape */ - {0x06,4}, /* EOB */ -}; - -static const int8_t mpeg1_level[111] = { - 1, 2, 3, 4, 5, 6, 7, 8, - 9, 10, 11, 12, 13, 14, 15, 16, - 17, 18, 19, 20, 21, 22, 23, 24, - 25, 26, 27, 28, 29, 30, 31, 32, - 33, 34, 35, 36, 37, 38, 39, 40, - 1, 2, 3, 4, 5, 6, 7, 8, - 9, 10, 11, 12, 13, 14, 15, 16, - 17, 18, 1, 2, 3, 4, 5, 1, - 2, 3, 4, 1, 2, 3, 1, 2, - 3, 1, 2, 3, 1, 2, 1, 2, - 1, 2, 1, 2, 1, 2, 1, 2, - 1, 2, 1, 2, 1, 2, 1, 2, - 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, -}; - -static const int8_t mpeg1_run[111] = { - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 2, 2, 2, 2, 2, 3, - 3, 3, 3, 4, 4, 4, 5, 5, - 5, 6, 6, 6, 7, 7, 8, 8, - 9, 9, 10, 10, 11, 11, 12, 12, - 13, 13, 14, 14, 15, 15, 16, 16, - 17, 18, 19, 20, 21, 22, 23, 24, - 25, 26, 27, 28, 29, 30, 31, -}; - -static RLTable rl_mpeg1 = { - 111, - 111, - mpeg1_vlc, - mpeg1_run, - mpeg1_level, -}; - -static RLTable rl_mpeg2 = { - 111, - 111, - mpeg2_vlc, - mpeg1_run, - mpeg1_level, -}; - -static const uint8_t mbAddrIncrTable[36][2] = { - {0x1, 1}, - {0x3, 3}, - {0x2, 3}, - {0x3, 4}, - {0x2, 4}, - {0x3, 5}, - {0x2, 5}, - {0x7, 7}, - {0x6, 7}, - {0xb, 8}, - {0xa, 8}, - {0x9, 8}, - {0x8, 8}, - {0x7, 8}, - {0x6, 8}, - {0x17, 10}, - {0x16, 10}, - {0x15, 10}, - {0x14, 10}, - {0x13, 10}, - {0x12, 10}, - {0x23, 11}, - {0x22, 11}, - {0x21, 11}, - {0x20, 11}, - {0x1f, 11}, - {0x1e, 11}, - {0x1d, 11}, - {0x1c, 11}, - {0x1b, 11}, - {0x1a, 11}, - {0x19, 11}, - {0x18, 11}, - {0x8, 11}, /* escape */ - {0xf, 11}, /* stuffing */ - {0x0, 8}, /* end (and 15 more 0 bits should follow) */ -}; - -static const uint8_t mbPatTable[64][2] = { - {0x1, 9}, - {0xb, 5}, - {0x9, 5}, - {0xd, 6}, - {0xd, 4}, - {0x17, 7}, - {0x13, 7}, - {0x1f, 8}, - {0xc, 4}, - {0x16, 7}, - {0x12, 7}, - {0x1e, 8}, - {0x13, 5}, - {0x1b, 8}, - {0x17, 8}, - {0x13, 8}, - {0xb, 4}, - {0x15, 7}, - {0x11, 7}, - {0x1d, 8}, - {0x11, 5}, - {0x19, 8}, - {0x15, 8}, - {0x11, 8}, - {0xf, 6}, - {0xf, 8}, - {0xd, 8}, - {0x3, 9}, - {0xf, 5}, - {0xb, 8}, - {0x7, 8}, - {0x7, 9}, - {0xa, 4}, - {0x14, 7}, - {0x10, 7}, - {0x1c, 8}, - {0xe, 6}, - {0xe, 8}, - {0xc, 8}, - {0x2, 9}, - {0x10, 5}, - {0x18, 8}, - {0x14, 8}, - {0x10, 8}, - {0xe, 5}, - {0xa, 8}, - {0x6, 8}, - {0x6, 9}, - {0x12, 5}, - {0x1a, 8}, - {0x16, 8}, - {0x12, 8}, - {0xd, 5}, - {0x9, 8}, - {0x5, 8}, - {0x5, 9}, - {0xc, 5}, - {0x8, 8}, - {0x4, 8}, - {0x4, 9}, - {0x7, 3}, - {0xa, 5}, - {0x8, 5}, - {0xc, 6} -}; - -#define MB_TYPE_ZERO_MV 0x20000000 -#define IS_ZERO_MV(a) ((a)&MB_TYPE_ZERO_MV) - -static const uint8_t table_mb_ptype[7][2] = { - { 3, 5 }, // 0x01 MB_INTRA - { 1, 2 }, // 0x02 MB_PAT - { 1, 3 }, // 0x08 MB_FOR - { 1, 1 }, // 0x0A MB_FOR|MB_PAT - { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA - { 1, 5 }, // 0x12 MB_QUANT|MB_PAT - { 2, 5 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT -}; - -static const uint32_t ptype2mb_type[7] = { - MB_TYPE_INTRA, - MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16, - MB_TYPE_L0, - MB_TYPE_L0 | MB_TYPE_CBP, - MB_TYPE_QUANT | MB_TYPE_INTRA, - MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16, - MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP, -}; - -static const uint8_t table_mb_btype[11][2] = { - { 3, 5 }, // 0x01 MB_INTRA - { 2, 3 }, // 0x04 MB_BACK - { 3, 3 }, // 0x06 MB_BACK|MB_PAT - { 2, 4 }, // 0x08 MB_FOR - { 3, 4 }, // 0x0A MB_FOR|MB_PAT - { 2, 2 }, // 0x0C MB_FOR|MB_BACK - { 3, 2 }, // 0x0E MB_FOR|MB_BACK|MB_PAT - { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA - { 2, 6 }, // 0x16 MB_QUANT|MB_BACK|MB_PAT - { 3, 6 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT - { 2, 5 }, // 0x1E MB_QUANT|MB_FOR|MB_BACK|MB_PAT -}; - -static const uint32_t btype2mb_type[11] = { - MB_TYPE_INTRA, - MB_TYPE_L1, - MB_TYPE_L1 | MB_TYPE_CBP, - MB_TYPE_L0, - MB_TYPE_L0 | MB_TYPE_CBP, - MB_TYPE_L0L1, - MB_TYPE_L0L1 | MB_TYPE_CBP, - MB_TYPE_QUANT | MB_TYPE_INTRA, - MB_TYPE_QUANT | MB_TYPE_L1 | MB_TYPE_CBP, - MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP, - MB_TYPE_QUANT | MB_TYPE_L0L1 | MB_TYPE_CBP, -}; - -static const uint8_t mbMotionVectorTable[17][2] = { -{ 0x1, 1 }, -{ 0x1, 2 }, -{ 0x1, 3 }, -{ 0x1, 4 }, -{ 0x3, 6 }, -{ 0x5, 7 }, -{ 0x4, 7 }, -{ 0x3, 7 }, -{ 0xb, 9 }, -{ 0xa, 9 }, -{ 0x9, 9 }, -{ 0x11, 10 }, -{ 0x10, 10 }, -{ 0xf, 10 }, -{ 0xe, 10 }, -{ 0xd, 10 }, -{ 0xc, 10 }, -}; - -const AVRational ff_frame_rate_tab[] = { - { 0, 0}, - {24000, 1001}, - { 24, 1}, - { 25, 1}, - {30000, 1001}, - { 30, 1}, - { 50, 1}, - {60000, 1001}, - { 60, 1}, - // Xing's 15fps: (9) - { 15, 1}, - // libmpeg3's "Unofficial economy rates": (10-13) - { 5, 1}, - { 10, 1}, - { 12, 1}, - { 15, 1}, - { 0, 0}, -}; - -static const uint8_t non_linear_qscale[32] = { - 0, 1, 2, 3, 4, 5, 6, 7, - 8,10,12,14,16,18,20,22, - 24,28,32,36,40,44,48,52, - 56,64,72,80,88,96,104,112, -}; - -static const uint8_t inv_non_linear_qscale[13] = { - 0, 2, 4, 6, 8, - 9,10,11,12,13,14,15,16, -}; - -const uint8_t ff_mpeg1_dc_scale_table[128]={ -// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 - 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, - 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, - 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, - 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, -}; - -static const uint8_t mpeg2_dc_scale_table1[128]={ -// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, -}; - -static const uint8_t mpeg2_dc_scale_table2[128]={ -// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -}; - -static const uint8_t mpeg2_dc_scale_table3[128]={ -// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -}; - -static const uint8_t *mpeg2_dc_scale_table[4]={ - ff_mpeg1_dc_scale_table, - mpeg2_dc_scale_table1, - mpeg2_dc_scale_table2, - mpeg2_dc_scale_table3, -}; - -static const float mpeg1_aspect[16]={ - 0.0000, - 1.0000, - 0.6735, - 0.7031, - - 0.7615, - 0.8055, - 0.8437, - 0.8935, - - 0.9157, - 0.9815, - 1.0255, - 1.0695, - - 1.0950, - 1.1575, - 1.2015, -}; - -static const AVRational mpeg2_aspect[16]={ - {0,1}, - {1,1}, - {4,3}, - {16,9}, - {221,100}, - {0,1}, - {0,1}, - {0,1}, - {0,1}, - {0,1}, - {0,1}, - {0,1}, - {0,1}, - {0,1}, - {0,1}, - {0,1}, -}; - -static const uint8_t svcd_scan_offset_placeholder[14]={ - 0x10, 0x0E, - 0x00, 0x80, 0x81, - 0x00, 0x80, 0x81, - 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, -}; +extern const float mpeg1_aspect[16]; +extern const AVRational mpeg2_aspect[16]; #endif // AVCODEC_MPEG12DATA_H diff --git a/libavcodec/mpeg12decdata.h b/libavcodec/mpeg12decdata.h new file mode 100644 index 0000000000..7aee9899bf --- /dev/null +++ b/libavcodec/mpeg12decdata.h @@ -0,0 +1,124 @@ +/* + * MPEG1/2 decoder tables + * copyright (c) 2000,2001 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 mpeg12decdata.h + * MPEG1/2 decoder tables. + */ + +#ifndef AVCODEC_MPEG12DECDATA_H +#define AVCODEC_MPEG12DECDATA_H + +#include +#include "mpegvideo.h" + + +#define MB_TYPE_ZERO_MV 0x20000000 +#define IS_ZERO_MV(a) ((a)&MB_TYPE_ZERO_MV) + +static const uint8_t table_mb_ptype[7][2] = { + { 3, 5 }, // 0x01 MB_INTRA + { 1, 2 }, // 0x02 MB_PAT + { 1, 3 }, // 0x08 MB_FOR + { 1, 1 }, // 0x0A MB_FOR|MB_PAT + { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA + { 1, 5 }, // 0x12 MB_QUANT|MB_PAT + { 2, 5 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT +}; + +static const uint32_t ptype2mb_type[7] = { + MB_TYPE_INTRA, + MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16, + MB_TYPE_L0, + MB_TYPE_L0 | MB_TYPE_CBP, + MB_TYPE_QUANT | MB_TYPE_INTRA, + MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_ZERO_MV | MB_TYPE_16x16, + MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP, +}; + +static const uint8_t table_mb_btype[11][2] = { + { 3, 5 }, // 0x01 MB_INTRA + { 2, 3 }, // 0x04 MB_BACK + { 3, 3 }, // 0x06 MB_BACK|MB_PAT + { 2, 4 }, // 0x08 MB_FOR + { 3, 4 }, // 0x0A MB_FOR|MB_PAT + { 2, 2 }, // 0x0C MB_FOR|MB_BACK + { 3, 2 }, // 0x0E MB_FOR|MB_BACK|MB_PAT + { 1, 6 }, // 0x11 MB_QUANT|MB_INTRA + { 2, 6 }, // 0x16 MB_QUANT|MB_BACK|MB_PAT + { 3, 6 }, // 0x1A MB_QUANT|MB_FOR|MB_PAT + { 2, 5 }, // 0x1E MB_QUANT|MB_FOR|MB_BACK|MB_PAT +}; + +static const uint32_t btype2mb_type[11] = { + MB_TYPE_INTRA, + MB_TYPE_L1, + MB_TYPE_L1 | MB_TYPE_CBP, + MB_TYPE_L0, + MB_TYPE_L0 | MB_TYPE_CBP, + MB_TYPE_L0L1, + MB_TYPE_L0L1 | MB_TYPE_CBP, + MB_TYPE_QUANT | MB_TYPE_INTRA, + MB_TYPE_QUANT | MB_TYPE_L1 | MB_TYPE_CBP, + MB_TYPE_QUANT | MB_TYPE_L0 | MB_TYPE_CBP, + MB_TYPE_QUANT | MB_TYPE_L0L1 | MB_TYPE_CBP, +}; + +static const uint8_t non_linear_qscale[32] = { + 0, 1, 2, 3, 4, 5, 6, 7, + 8,10,12,14,16,18,20,22, + 24,28,32,36,40,44,48,52, + 56,64,72,80,88,96,104,112, +}; + +static const uint8_t mpeg2_dc_scale_table1[128]={ +// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, +}; + +static const uint8_t mpeg2_dc_scale_table2[128]={ +// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, +}; + +static const uint8_t mpeg2_dc_scale_table3[128]={ +// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, +}; + +static const uint8_t *mpeg2_dc_scale_table[4]={ + ff_mpeg1_dc_scale_table, + mpeg2_dc_scale_table1, + mpeg2_dc_scale_table2, + mpeg2_dc_scale_table3, +}; + +#endif // AVCODEC_MPEG12DECDATA_H diff --git a/libavcodec/mpeg12enc.c b/libavcodec/mpeg12enc.c new file mode 100644 index 0000000000..8afaf0a6d0 --- /dev/null +++ b/libavcodec/mpeg12enc.c @@ -0,0 +1,956 @@ +/* + * MPEG1/2 encoder + * Copyright (c) 2000,2001 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 mpeg12enc.c + * MPEG1/2 encoder + */ + +#include "avcodec.h" +#include "dsputil.h" +#include "mpegvideo.h" + +#include "mpeg12.h" +#include "mpeg12data.h" +#include "bytestream.h" + + +static const uint8_t inv_non_linear_qscale[13] = { + 0, 2, 4, 6, 8, + 9,10,11,12,13,14,15,16, +}; + +static const uint8_t svcd_scan_offset_placeholder[14] = { + 0x10, 0x0E, + 0x00, 0x80, 0x81, + 0x00, 0x80, 0x81, + 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, +}; + +static void mpeg1_encode_block(MpegEncContext *s, + DCTELEM *block, + int component); +static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code); // RAL: f_code parameter added + +static uint8_t mv_penalty[MAX_FCODE+1][MAX_MV*2+1]; +static uint8_t fcode_tab[MAX_MV*2+1]; + +static uint8_t uni_mpeg1_ac_vlc_len [64*64*2]; +static uint8_t uni_mpeg2_ac_vlc_len [64*64*2]; + +/* simple include everything table for dc, first byte is bits number next 3 are code*/ +static uint32_t mpeg1_lum_dc_uni[512]; +static uint32_t mpeg1_chr_dc_uni[512]; + +static uint8_t mpeg1_index_run[2][64]; +static int8_t mpeg1_max_level[2][64]; + +static void init_uni_ac_vlc(RLTable *rl, uint8_t *uni_ac_vlc_len){ + int i; + + for(i=0; i<128; i++){ + int level= i-64; + int run; + for(run=0; run<64; run++){ + int len, bits, code; + + int alevel= FFABS(level); + int sign= (level>>31)&1; + + if (alevel > rl->max_level[0][run]) + code= 111; /*rl->n*/ + else + code= rl->index_run[0][run] + alevel - 1; + + if (code < 111 /* rl->n */) { + /* store the vlc & sign at once */ + len= rl->table_vlc[code][1]+1; + bits= (rl->table_vlc[code][0]<<1) + sign; + } else { + len= rl->table_vlc[111/*rl->n*/][1]+6; + bits= rl->table_vlc[111/*rl->n*/][0]<<6; + + bits|= run; + if (alevel < 128) { + bits<<=8; len+=8; + bits|= level & 0xff; + } else { + bits<<=16; len+=16; + bits|= level & 0xff; + if (level < 0) { + bits|= 0x8001 + level + 255; + } else { + bits|= level & 0xffff; + } + } + } + + uni_ac_vlc_len [UNI_AC_ENC_INDEX(run, i)]= len; + } + } +} + + +static int find_frame_rate_index(MpegEncContext *s){ + int i; + int64_t dmin= INT64_MAX; + int64_t d; + + for(i=1;i<14;i++) { + int64_t n0= 1001LL/ff_frame_rate_tab[i].den*ff_frame_rate_tab[i].num*s->avctx->time_base.num; + int64_t n1= 1001LL*s->avctx->time_base.den; + if(s->avctx->strict_std_compliance > FF_COMPLIANCE_INOFFICIAL && i>=9) break; + + d = FFABS(n0 - n1); + if(d < dmin){ + dmin=d; + s->frame_rate_index= i; + } + } + if(dmin) + return -1; + else + return 0; +} + +static int encode_init(AVCodecContext *avctx) +{ + MpegEncContext *s = avctx->priv_data; + + if(MPV_encode_init(avctx) < 0) + return -1; + + if(find_frame_rate_index(s) < 0){ + if(s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){ + av_log(avctx, AV_LOG_ERROR, "MPEG1/2 does not support %d/%d fps\n", avctx->time_base.den, avctx->time_base.num); + return -1; + }else{ + av_log(avctx, AV_LOG_INFO, "MPEG1/2 does not support %d/%d fps, there may be AV sync issues\n", avctx->time_base.den, avctx->time_base.num); + } + } + + if(avctx->profile == FF_PROFILE_UNKNOWN){ + if(avctx->level != FF_LEVEL_UNKNOWN){ + av_log(avctx, AV_LOG_ERROR, "Set profile and level\n"); + return -1; + } + avctx->profile = s->chroma_format == CHROMA_420 ? 4 : 0; /* Main or 4:2:2 */ + } + + if(avctx->level == FF_LEVEL_UNKNOWN){ + if(avctx->profile == 0){ /* 4:2:2 */ + if(avctx->width <= 720 && avctx->height <= 608) avctx->level = 5; /* Main */ + else avctx->level = 2; /* High */ + }else{ + if(avctx->profile != 1 && s->chroma_format != CHROMA_420){ + av_log(avctx, AV_LOG_ERROR, "Only High(1) and 4:2:2(0) profiles support 4:2:2 color sampling\n"); + return -1; + } + if(avctx->width <= 720 && avctx->height <= 576) avctx->level = 8; /* Main */ + else if(avctx->width <= 1440) avctx->level = 6; /* High 1440 */ + else avctx->level = 4; /* High */ + } + } + + if((avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE) && s->frame_rate_index != 4){ + av_log(avctx, AV_LOG_ERROR, "Drop frame time code only allowed with 1001/30000 fps\n"); + return -1; + } + + return 0; +} + +static void put_header(MpegEncContext *s, int header) +{ + align_put_bits(&s->pb); + put_bits(&s->pb, 16, header>>16); + put_bits(&s->pb, 16, header&0xFFFF); +} + +/* put sequence header if needed */ +static void mpeg1_encode_sequence_header(MpegEncContext *s) +{ + unsigned int vbv_buffer_size; + unsigned int fps, v; + int i; + uint64_t time_code; + float best_aspect_error= 1E10; + float aspect_ratio= av_q2d(s->avctx->sample_aspect_ratio); + int constraint_parameter_flag; + + if(aspect_ratio==0.0) aspect_ratio= 1.0; //pixel aspect 1:1 (VGA) + + if (s->current_picture.key_frame) { + AVRational framerate= ff_frame_rate_tab[s->frame_rate_index]; + + /* mpeg1 header repeated every gop */ + put_header(s, SEQ_START_CODE); + + put_bits(&s->pb, 12, s->width); + put_bits(&s->pb, 12, s->height); + + for(i=1; i<15; i++){ + float error= aspect_ratio; + if(s->codec_id == CODEC_ID_MPEG1VIDEO || i <=1) + error-= 1.0/mpeg1_aspect[i]; + else + error-= av_q2d(mpeg2_aspect[i])*s->height/s->width; + + error= FFABS(error); + + if(error < best_aspect_error){ + best_aspect_error= error; + s->aspect_ratio_info= i; + } + } + + put_bits(&s->pb, 4, s->aspect_ratio_info); + put_bits(&s->pb, 4, s->frame_rate_index); + + if(s->avctx->rc_max_rate){ + v = (s->avctx->rc_max_rate + 399) / 400; + if (v > 0x3ffff && s->codec_id == CODEC_ID_MPEG1VIDEO) + v = 0x3ffff; + }else{ + v= 0x3FFFF; + } + + if(s->avctx->rc_buffer_size) + vbv_buffer_size = s->avctx->rc_buffer_size; + else + /* VBV calculation: Scaled so that a VCD has the proper VBV size of 40 kilobytes */ + vbv_buffer_size = (( 20 * s->bit_rate) / (1151929 / 2)) * 8 * 1024; + vbv_buffer_size= (vbv_buffer_size + 16383) / 16384; + + put_bits(&s->pb, 18, v & 0x3FFFF); + put_bits(&s->pb, 1, 1); /* marker */ + put_bits(&s->pb, 10, vbv_buffer_size & 0x3FF); + + constraint_parameter_flag= + s->width <= 768 && s->height <= 576 && + s->mb_width * s->mb_height <= 396 && + s->mb_width * s->mb_height * framerate.num <= framerate.den*396*25 && + framerate.num <= framerate.den*30 && + s->avctx->me_range && s->avctx->me_range < 128 && + vbv_buffer_size <= 20 && + v <= 1856000/400 && + s->codec_id == CODEC_ID_MPEG1VIDEO; + + put_bits(&s->pb, 1, constraint_parameter_flag); + + ff_write_quant_matrix(&s->pb, s->avctx->intra_matrix); + ff_write_quant_matrix(&s->pb, s->avctx->inter_matrix); + + if(s->codec_id == CODEC_ID_MPEG2VIDEO){ + put_header(s, EXT_START_CODE); + put_bits(&s->pb, 4, 1); //seq ext + + put_bits(&s->pb, 1, s->avctx->profile == 0); //escx 1 for 4:2:2 profile */ + + put_bits(&s->pb, 3, s->avctx->profile); //profile + put_bits(&s->pb, 4, s->avctx->level); //level + + put_bits(&s->pb, 1, s->progressive_sequence); + put_bits(&s->pb, 2, s->chroma_format); + put_bits(&s->pb, 2, 0); //horizontal size ext + put_bits(&s->pb, 2, 0); //vertical size ext + put_bits(&s->pb, 12, v>>18); //bitrate ext + put_bits(&s->pb, 1, 1); //marker + put_bits(&s->pb, 8, vbv_buffer_size >>10); //vbv buffer ext + put_bits(&s->pb, 1, s->low_delay); + put_bits(&s->pb, 2, 0); // frame_rate_ext_n + put_bits(&s->pb, 5, 0); // frame_rate_ext_d + } + + put_header(s, GOP_START_CODE); + put_bits(&s->pb, 1, !!(s->avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE)); /* drop frame flag */ + /* time code : we must convert from the real frame rate to a + fake mpeg frame rate in case of low frame rate */ + fps = (framerate.num + framerate.den/2)/ framerate.den; + time_code = s->current_picture_ptr->coded_picture_number + s->avctx->timecode_frame_start; + + s->gop_picture_number = s->current_picture_ptr->coded_picture_number; + if (s->avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE) { + /* only works for NTSC 29.97 */ + int d = time_code / 17982; + int m = time_code % 17982; + //if (m < 2) m += 2; /* not needed since -2,-1 / 1798 in C returns 0 */ + time_code += 18 * d + 2 * ((m - 2) / 1798); + } + put_bits(&s->pb, 5, (uint32_t)((time_code / (fps * 3600)) % 24)); + put_bits(&s->pb, 6, (uint32_t)((time_code / (fps * 60)) % 60)); + put_bits(&s->pb, 1, 1); + put_bits(&s->pb, 6, (uint32_t)((time_code / fps) % 60)); + put_bits(&s->pb, 6, (uint32_t)((time_code % fps))); + put_bits(&s->pb, 1, !!(s->flags & CODEC_FLAG_CLOSED_GOP)); + put_bits(&s->pb, 1, 0); /* broken link */ + } +} + +static inline void encode_mb_skip_run(MpegEncContext *s, int run){ + while (run >= 33) { + put_bits(&s->pb, 11, 0x008); + run -= 33; + } + put_bits(&s->pb, mbAddrIncrTable[run][1], + mbAddrIncrTable[run][0]); +} + +static av_always_inline void put_qscale(MpegEncContext *s) +{ + if(s->q_scale_type){ + assert(s->qscale>=1 && s->qscale <=12); + put_bits(&s->pb, 5, inv_non_linear_qscale[s->qscale]); + }else{ + put_bits(&s->pb, 5, s->qscale); + } +} + +void ff_mpeg1_encode_slice_header(MpegEncContext *s){ + put_header(s, SLICE_MIN_START_CODE + s->mb_y); + put_qscale(s); + put_bits(&s->pb, 1, 0); /* slice extra information */ +} + +void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number) +{ + mpeg1_encode_sequence_header(s); + + /* mpeg1 picture header */ + put_header(s, PICTURE_START_CODE); + /* temporal reference */ + + // RAL: s->picture_number instead of s->fake_picture_number + put_bits(&s->pb, 10, (s->picture_number - + s->gop_picture_number) & 0x3ff); + put_bits(&s->pb, 3, s->pict_type); + + s->vbv_delay_ptr= s->pb.buf + put_bits_count(&s->pb)/8; + put_bits(&s->pb, 16, 0xFFFF); /* vbv_delay */ + + // RAL: Forward f_code also needed for B frames + if (s->pict_type == P_TYPE || s->pict_type == B_TYPE) { + put_bits(&s->pb, 1, 0); /* half pel coordinates */ + if(s->codec_id == CODEC_ID_MPEG1VIDEO) + put_bits(&s->pb, 3, s->f_code); /* forward_f_code */ + else + put_bits(&s->pb, 3, 7); /* forward_f_code */ + } + + // RAL: Backward f_code necessary for B frames + if (s->pict_type == B_TYPE) { + put_bits(&s->pb, 1, 0); /* half pel coordinates */ + if(s->codec_id == CODEC_ID_MPEG1VIDEO) + put_bits(&s->pb, 3, s->b_code); /* backward_f_code */ + else + put_bits(&s->pb, 3, 7); /* backward_f_code */ + } + + put_bits(&s->pb, 1, 0); /* extra bit picture */ + + s->frame_pred_frame_dct = 1; + if(s->codec_id == CODEC_ID_MPEG2VIDEO){ + put_header(s, EXT_START_CODE); + put_bits(&s->pb, 4, 8); //pic ext + if (s->pict_type == P_TYPE || s->pict_type == B_TYPE) { + put_bits(&s->pb, 4, s->f_code); + put_bits(&s->pb, 4, s->f_code); + }else{ + put_bits(&s->pb, 8, 255); + } + if (s->pict_type == B_TYPE) { + put_bits(&s->pb, 4, s->b_code); + put_bits(&s->pb, 4, s->b_code); + }else{ + put_bits(&s->pb, 8, 255); + } + put_bits(&s->pb, 2, s->intra_dc_precision); + + assert(s->picture_structure == PICT_FRAME); + put_bits(&s->pb, 2, s->picture_structure); + if (s->progressive_sequence) { + put_bits(&s->pb, 1, 0); /* no repeat */ + } else { + put_bits(&s->pb, 1, s->current_picture_ptr->top_field_first); + } + /* XXX: optimize the generation of this flag with entropy + measures */ + s->frame_pred_frame_dct = s->progressive_sequence; + + put_bits(&s->pb, 1, s->frame_pred_frame_dct); + put_bits(&s->pb, 1, s->concealment_motion_vectors); + put_bits(&s->pb, 1, s->q_scale_type); + put_bits(&s->pb, 1, s->intra_vlc_format); + put_bits(&s->pb, 1, s->alternate_scan); + put_bits(&s->pb, 1, s->repeat_first_field); + s->progressive_frame = s->progressive_sequence; + put_bits(&s->pb, 1, s->chroma_format == CHROMA_420 ? s->progressive_frame : 0); /* chroma_420_type */ + put_bits(&s->pb, 1, s->progressive_frame); + put_bits(&s->pb, 1, 0); //composite_display_flag + } + if(s->flags & CODEC_FLAG_SVCD_SCAN_OFFSET){ + int i; + + put_header(s, USER_START_CODE); + for(i=0; ipb, 8, svcd_scan_offset_placeholder[i]); + } + } + + s->mb_y=0; + ff_mpeg1_encode_slice_header(s); +} + +static inline void put_mb_modes(MpegEncContext *s, int n, int bits, + int has_mv, int field_motion) +{ + put_bits(&s->pb, n, bits); + if (!s->frame_pred_frame_dct) { + if (has_mv) + put_bits(&s->pb, 2, 2 - field_motion); /* motion_type: frame/field */ + put_bits(&s->pb, 1, s->interlaced_dct); + } +} + +static av_always_inline void mpeg1_encode_mb_internal(MpegEncContext *s, + DCTELEM block[6][64], + int motion_x, int motion_y, + int mb_block_count) +{ + int i, cbp; + const int mb_x = s->mb_x; + const int mb_y = s->mb_y; + const int first_mb= mb_x == s->resync_mb_x && mb_y == s->resync_mb_y; + + /* compute cbp */ + cbp = 0; + for(i=0;iblock_last_index[i] >= 0) + cbp |= 1 << (mb_block_count - 1 - i); + } + + if (cbp == 0 && !first_mb && s->mv_type == MV_TYPE_16X16 && + (mb_x != s->mb_width - 1 || (mb_y != s->mb_height - 1 && s->codec_id == CODEC_ID_MPEG1VIDEO)) && + ((s->pict_type == P_TYPE && (motion_x | motion_y) == 0) || + (s->pict_type == B_TYPE && s->mv_dir == s->last_mv_dir && (((s->mv_dir & MV_DIR_FORWARD) ? ((s->mv[0][0][0] - s->last_mv[0][0][0])|(s->mv[0][0][1] - s->last_mv[0][0][1])) : 0) | + ((s->mv_dir & MV_DIR_BACKWARD) ? ((s->mv[1][0][0] - s->last_mv[1][0][0])|(s->mv[1][0][1] - s->last_mv[1][0][1])) : 0)) == 0))) { + s->mb_skip_run++; + s->qscale -= s->dquant; + s->skip_count++; + s->misc_bits++; + s->last_bits++; + if(s->pict_type == P_TYPE){ + s->last_mv[0][1][0]= s->last_mv[0][0][0]= + s->last_mv[0][1][1]= s->last_mv[0][0][1]= 0; + } + } else { + if(first_mb){ + assert(s->mb_skip_run == 0); + encode_mb_skip_run(s, s->mb_x); + }else{ + encode_mb_skip_run(s, s->mb_skip_run); + } + + if (s->pict_type == I_TYPE) { + if(s->dquant && cbp){ + put_mb_modes(s, 2, 1, 0, 0); /* macroblock_type : macroblock_quant = 1 */ + put_qscale(s); + }else{ + put_mb_modes(s, 1, 1, 0, 0); /* macroblock_type : macroblock_quant = 0 */ + s->qscale -= s->dquant; + } + s->misc_bits+= get_bits_diff(s); + s->i_count++; + } else if (s->mb_intra) { + if(s->dquant && cbp){ + put_mb_modes(s, 6, 0x01, 0, 0); + put_qscale(s); + }else{ + put_mb_modes(s, 5, 0x03, 0, 0); + s->qscale -= s->dquant; + } + s->misc_bits+= get_bits_diff(s); + s->i_count++; + memset(s->last_mv, 0, sizeof(s->last_mv)); + } else if (s->pict_type == P_TYPE) { + if(s->mv_type == MV_TYPE_16X16){ + if (cbp != 0) { + if ((motion_x|motion_y) == 0) { + if(s->dquant){ + put_mb_modes(s, 5, 1, 0, 0); /* macroblock_pattern & quant */ + put_qscale(s); + }else{ + put_mb_modes(s, 2, 1, 0, 0); /* macroblock_pattern only */ + } + s->misc_bits+= get_bits_diff(s); + } else { + if(s->dquant){ + put_mb_modes(s, 5, 2, 1, 0); /* motion + cbp */ + put_qscale(s); + }else{ + put_mb_modes(s, 1, 1, 1, 0); /* motion + cbp */ + } + s->misc_bits+= get_bits_diff(s); + mpeg1_encode_motion(s, motion_x - s->last_mv[0][0][0], s->f_code); // RAL: f_code parameter added + mpeg1_encode_motion(s, motion_y - s->last_mv[0][0][1], s->f_code); // RAL: f_code parameter added + s->mv_bits+= get_bits_diff(s); + } + } else { + put_bits(&s->pb, 3, 1); /* motion only */ + if (!s->frame_pred_frame_dct) + put_bits(&s->pb, 2, 2); /* motion_type: frame */ + s->misc_bits+= get_bits_diff(s); + mpeg1_encode_motion(s, motion_x - s->last_mv[0][0][0], s->f_code); // RAL: f_code parameter added + mpeg1_encode_motion(s, motion_y - s->last_mv[0][0][1], s->f_code); // RAL: f_code parameter added + s->qscale -= s->dquant; + s->mv_bits+= get_bits_diff(s); + } + s->last_mv[0][1][0]= s->last_mv[0][0][0]= motion_x; + s->last_mv[0][1][1]= s->last_mv[0][0][1]= motion_y; + }else{ + assert(!s->frame_pred_frame_dct && s->mv_type == MV_TYPE_FIELD); + + if (cbp) { + if(s->dquant){ + put_mb_modes(s, 5, 2, 1, 1); /* motion + cbp */ + put_qscale(s); + }else{ + put_mb_modes(s, 1, 1, 1, 1); /* motion + cbp */ + } + } else { + put_bits(&s->pb, 3, 1); /* motion only */ + put_bits(&s->pb, 2, 1); /* motion_type: field */ + s->qscale -= s->dquant; + } + s->misc_bits+= get_bits_diff(s); + for(i=0; i<2; i++){ + put_bits(&s->pb, 1, s->field_select[0][i]); + mpeg1_encode_motion(s, s->mv[0][i][0] - s->last_mv[0][i][0] , s->f_code); + mpeg1_encode_motion(s, s->mv[0][i][1] - (s->last_mv[0][i][1]>>1), s->f_code); + s->last_mv[0][i][0]= s->mv[0][i][0]; + s->last_mv[0][i][1]= 2*s->mv[0][i][1]; + } + s->mv_bits+= get_bits_diff(s); + } + if(cbp) { + if (s->chroma_y_shift) { + put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]); + } else { + put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]); + put_bits(&s->pb, 2, cbp & 3); + } + } + s->f_count++; + } else{ + static const int mb_type_len[4]={0,3,4,2}; //bak,for,bi + + if(s->mv_type == MV_TYPE_16X16){ + if (cbp){ // With coded bloc pattern + if (s->dquant) { + if(s->mv_dir == MV_DIR_FORWARD) + put_mb_modes(s, 6, 3, 1, 0); + else + put_mb_modes(s, mb_type_len[s->mv_dir]+3, 2, 1, 0); + put_qscale(s); + } else { + put_mb_modes(s, mb_type_len[s->mv_dir], 3, 1, 0); + } + }else{ // No coded bloc pattern + put_bits(&s->pb, mb_type_len[s->mv_dir], 2); + if (!s->frame_pred_frame_dct) + put_bits(&s->pb, 2, 2); /* motion_type: frame */ + s->qscale -= s->dquant; + } + s->misc_bits += get_bits_diff(s); + if (s->mv_dir&MV_DIR_FORWARD){ + mpeg1_encode_motion(s, s->mv[0][0][0] - s->last_mv[0][0][0], s->f_code); + mpeg1_encode_motion(s, s->mv[0][0][1] - s->last_mv[0][0][1], s->f_code); + s->last_mv[0][0][0]=s->last_mv[0][1][0]= s->mv[0][0][0]; + s->last_mv[0][0][1]=s->last_mv[0][1][1]= s->mv[0][0][1]; + s->f_count++; + } + if (s->mv_dir&MV_DIR_BACKWARD){ + mpeg1_encode_motion(s, s->mv[1][0][0] - s->last_mv[1][0][0], s->b_code); + mpeg1_encode_motion(s, s->mv[1][0][1] - s->last_mv[1][0][1], s->b_code); + s->last_mv[1][0][0]=s->last_mv[1][1][0]= s->mv[1][0][0]; + s->last_mv[1][0][1]=s->last_mv[1][1][1]= s->mv[1][0][1]; + s->b_count++; + } + }else{ + assert(s->mv_type == MV_TYPE_FIELD); + assert(!s->frame_pred_frame_dct); + if (cbp){ // With coded bloc pattern + if (s->dquant) { + if(s->mv_dir == MV_DIR_FORWARD) + put_mb_modes(s, 6, 3, 1, 1); + else + put_mb_modes(s, mb_type_len[s->mv_dir]+3, 2, 1, 1); + put_qscale(s); + } else { + put_mb_modes(s, mb_type_len[s->mv_dir], 3, 1, 1); + } + }else{ // No coded bloc pattern + put_bits(&s->pb, mb_type_len[s->mv_dir], 2); + put_bits(&s->pb, 2, 1); /* motion_type: field */ + s->qscale -= s->dquant; + } + s->misc_bits += get_bits_diff(s); + if (s->mv_dir&MV_DIR_FORWARD){ + for(i=0; i<2; i++){ + put_bits(&s->pb, 1, s->field_select[0][i]); + mpeg1_encode_motion(s, s->mv[0][i][0] - s->last_mv[0][i][0] , s->f_code); + mpeg1_encode_motion(s, s->mv[0][i][1] - (s->last_mv[0][i][1]>>1), s->f_code); + s->last_mv[0][i][0]= s->mv[0][i][0]; + s->last_mv[0][i][1]= 2*s->mv[0][i][1]; + } + s->f_count++; + } + if (s->mv_dir&MV_DIR_BACKWARD){ + for(i=0; i<2; i++){ + put_bits(&s->pb, 1, s->field_select[1][i]); + mpeg1_encode_motion(s, s->mv[1][i][0] - s->last_mv[1][i][0] , s->b_code); + mpeg1_encode_motion(s, s->mv[1][i][1] - (s->last_mv[1][i][1]>>1), s->b_code); + s->last_mv[1][i][0]= s->mv[1][i][0]; + s->last_mv[1][i][1]= 2*s->mv[1][i][1]; + } + s->b_count++; + } + } + s->mv_bits += get_bits_diff(s); + if(cbp) { + if (s->chroma_y_shift) { + put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]); + } else { + put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]); + put_bits(&s->pb, 2, cbp & 3); + } + } + } + for(i=0;imb_skip_run = 0; + if(s->mb_intra) + s->i_tex_bits+= get_bits_diff(s); + else + s->p_tex_bits+= get_bits_diff(s); + } +} + +void mpeg1_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y) +{ + if (s->chroma_format == CHROMA_420) mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 6); + else mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 8); +} + +// RAL: Parameter added: f_or_b_code +static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code) +{ + int code, bit_size, l, bits, range, sign; + + if (val == 0) { + /* zero vector */ + code = 0; + put_bits(&s->pb, + mbMotionVectorTable[0][1], + mbMotionVectorTable[0][0]); + } else { + bit_size = f_or_b_code - 1; + range = 1 << bit_size; + /* modulo encoding */ + l= INT_BIT - 5 - bit_size; + val= (val<>l; + + if (val >= 0) { + val--; + code = (val >> bit_size) + 1; + bits = val & (range - 1); + sign = 0; + } else { + val = -val; + val--; + code = (val >> bit_size) + 1; + bits = val & (range - 1); + sign = 1; + } + + assert(code > 0 && code <= 16); + + put_bits(&s->pb, + mbMotionVectorTable[code][1], + mbMotionVectorTable[code][0]); + + put_bits(&s->pb, 1, sign); + if (bit_size > 0) { + put_bits(&s->pb, bit_size, bits); + } + } +} + +void ff_mpeg1_encode_init(MpegEncContext *s) +{ + static int done=0; + + common_init(s); + + if(!done){ + int f_code; + int mv; + int i; + + done=1; + init_rl(&rl_mpeg1, static_rl_table_store[0]); + init_rl(&rl_mpeg2, static_rl_table_store[1]); + + for(i=0; i<64; i++) + { + mpeg1_max_level[0][i]= rl_mpeg1.max_level[0][i]; + mpeg1_index_run[0][i]= rl_mpeg1.index_run[0][i]; + } + + init_uni_ac_vlc(&rl_mpeg1, uni_mpeg1_ac_vlc_len); + if(s->intra_vlc_format) + init_uni_ac_vlc(&rl_mpeg2, uni_mpeg2_ac_vlc_len); + + /* build unified dc encoding tables */ + for(i=-255; i<256; i++) + { + int adiff, index; + int bits, code; + int diff=i; + + adiff = FFABS(diff); + if(diff<0) diff--; + index = av_log2(2*adiff); + + bits= vlc_dc_lum_bits[index] + index; + code= (vlc_dc_lum_code[index]<> bit_size) + 1; + if(code<17){ + len= mbMotionVectorTable[code][1] + 1 + bit_size; + }else{ + len= mbMotionVectorTable[16][1] + 2 + bit_size; + } + } + + mv_penalty[f_code][mv+MAX_MV]= len; + } + } + + + for(f_code=MAX_FCODE; f_code>0; f_code--){ + for(mv=-(8<me.mv_penalty= mv_penalty; + s->fcode_tab= fcode_tab; + if(s->codec_id == CODEC_ID_MPEG1VIDEO){ + s->min_qcoeff=-255; + s->max_qcoeff= 255; + }else{ + s->min_qcoeff=-2047; + s->max_qcoeff= 2047; + } + if (s->intra_vlc_format) { + s->intra_ac_vlc_length= + s->intra_ac_vlc_last_length= uni_mpeg2_ac_vlc_len; + } else { + s->intra_ac_vlc_length= + s->intra_ac_vlc_last_length= uni_mpeg1_ac_vlc_len; + } + s->inter_ac_vlc_length= + s->inter_ac_vlc_last_length= uni_mpeg1_ac_vlc_len; +} + +static inline void encode_dc(MpegEncContext *s, int diff, int component) +{ + if(((unsigned) (diff+255)) >= 511){ + int index; + + if(diff<0){ + index= av_log2_16bit(-2*diff); + diff--; + }else{ + index= av_log2_16bit(2*diff); + } + if (component == 0) { + put_bits( + &s->pb, + vlc_dc_lum_bits[index] + index, + (vlc_dc_lum_code[index]<pb, + vlc_dc_chroma_bits[index] + index, + (vlc_dc_chroma_code[index]<pb, + mpeg1_lum_dc_uni[diff+255]&0xFF, + mpeg1_lum_dc_uni[diff+255]>>8); + } else { + put_bits( + &s->pb, + mpeg1_chr_dc_uni[diff+255]&0xFF, + mpeg1_chr_dc_uni[diff+255]>>8); + } + } +} + +static void mpeg1_encode_block(MpegEncContext *s, + DCTELEM *block, + int n) +{ + int alevel, level, last_non_zero, dc, diff, i, j, run, last_index, sign; + int code, component; + const uint16_t (*table_vlc)[2] = rl_mpeg1.table_vlc; + + last_index = s->block_last_index[n]; + + /* DC coef */ + if (s->mb_intra) { + component = (n <= 3 ? 0 : (n&1) + 1); + dc = block[0]; /* overflow is impossible */ + diff = dc - s->last_dc[component]; + encode_dc(s, diff, component); + s->last_dc[component] = dc; + i = 1; + if (s->intra_vlc_format) + table_vlc = rl_mpeg2.table_vlc; + } else { + /* encode the first coefficient : needs to be done here because + it is handled slightly differently */ + level = block[0]; + if (abs(level) == 1) { + code = ((uint32_t)level >> 31); /* the sign bit */ + put_bits(&s->pb, 2, code | 0x02); + i = 1; + } else { + i = 0; + last_non_zero = -1; + goto next_coef; + } + } + + /* now quantify & encode AC coefs */ + last_non_zero = i - 1; + + for(;i<=last_index;i++) { + j = s->intra_scantable.permutated[i]; + level = block[j]; + next_coef: +#if 0 + if (level != 0) + dprintf(s->avctx, "level[%d]=%d\n", i, level); +#endif + /* encode using VLC */ + if (level != 0) { + run = i - last_non_zero - 1; + + alevel= level; + MASK_ABS(sign, alevel) + sign&=1; + + if (alevel <= mpeg1_max_level[0][run]){ + code= mpeg1_index_run[0][run] + alevel - 1; + /* store the vlc & sign at once */ + put_bits(&s->pb, table_vlc[code][1]+1, (table_vlc[code][0]<<1) + sign); + } else { + /* escape seems to be pretty rare <5% so I do not optimize it */ + put_bits(&s->pb, table_vlc[111][1], table_vlc[111][0]); + /* escape: only clip in this case */ + put_bits(&s->pb, 6, run); + if(s->codec_id == CODEC_ID_MPEG1VIDEO){ + if (alevel < 128) { + put_bits(&s->pb, 8, level & 0xff); + } else { + if (level < 0) { + put_bits(&s->pb, 16, 0x8001 + level + 255); + } else { + put_bits(&s->pb, 16, level & 0xffff); + } + } + }else{ + put_bits(&s->pb, 12, level & 0xfff); + } + } + last_non_zero = i; + } + } + /* end of block */ + put_bits(&s->pb, table_vlc[112][1], table_vlc[112][0]); +} + +AVCodec mpeg1video_encoder = { + "mpeg1video", + CODEC_TYPE_VIDEO, + CODEC_ID_MPEG1VIDEO, + sizeof(MpegEncContext), + encode_init, + MPV_encode_picture, + MPV_encode_end, + .supported_framerates= ff_frame_rate_tab+1, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1}, + .capabilities= CODEC_CAP_DELAY, +}; + +AVCodec mpeg2video_encoder = { + "mpeg2video", + CODEC_TYPE_VIDEO, + CODEC_ID_MPEG2VIDEO, + sizeof(MpegEncContext), + encode_init, + MPV_encode_picture, + MPV_encode_end, + .supported_framerates= ff_frame_rate_tab+1, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, -1}, + .capabilities= CODEC_CAP_DELAY, +}; diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c index c418b47df0..43f6a66208 100644 --- a/libavcodec/mpegvideo_enc.c +++ b/libavcodec/mpegvideo_enc.c @@ -675,7 +675,8 @@ int MPV_encode_init(AVCodecContext *avctx) h263_encode_init(s); if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version) ff_msmpeg4_encode_init(s); - if (s->out_format == FMT_MPEG1) + if ((ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER) + && s->out_format == FMT_MPEG1) ff_mpeg1_encode_init(s); /* init q matrix */ @@ -1685,6 +1686,7 @@ static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, switch(s->codec_id){ //FIXME funct ptr could be slightly faster case CODEC_ID_MPEG1VIDEO: case CODEC_ID_MPEG2VIDEO: + if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER) mpeg1_encode_mb(s, s->block, motion_x, motion_y); break; case CODEC_ID_MPEG4: mpeg4_encode_mb(s, s->block, motion_x, motion_y); break; @@ -2146,8 +2148,10 @@ static int encode_thread(AVCodecContext *c, void *arg){ break; case CODEC_ID_MPEG1VIDEO: case CODEC_ID_MPEG2VIDEO: + if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER) { ff_mpeg1_encode_slice_header(s); ff_mpeg1_clean_buffers(s); + } break; case CODEC_ID_H263: case CODEC_ID_H263P: @@ -2873,6 +2877,7 @@ static int encode_picture(MpegEncContext *s, int picture_number) h263_encode_picture_header(s, picture_number); break; case FMT_MPEG1: + if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER) mpeg1_encode_picture_header(s, picture_number); break; case FMT_H264: