yading@10: /* yading@10: * MPEG1/2 encoder yading@10: * Copyright (c) 2000,2001 Fabrice Bellard yading@10: * Copyright (c) 2002-2004 Michael Niedermayer yading@10: * yading@10: * This file is part of FFmpeg. yading@10: * yading@10: * FFmpeg is free software; you can redistribute it and/or yading@10: * modify it under the terms of the GNU Lesser General Public yading@10: * License as published by the Free Software Foundation; either yading@10: * version 2.1 of the License, or (at your option) any later version. yading@10: * yading@10: * FFmpeg is distributed in the hope that it will be useful, yading@10: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@10: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@10: * Lesser General Public License for more details. yading@10: * yading@10: * You should have received a copy of the GNU Lesser General Public yading@10: * License along with FFmpeg; if not, write to the Free Software yading@10: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@10: */ yading@10: yading@10: /** yading@10: * @file yading@10: * MPEG1/2 encoder yading@10: */ yading@10: yading@10: #include "avcodec.h" yading@10: #include "mathops.h" yading@10: #include "mpegvideo.h" yading@10: yading@10: #include "mpeg12.h" yading@10: #include "mpeg12data.h" yading@10: #include "bytestream.h" yading@10: #include "libavutil/log.h" yading@10: #include "libavutil/opt.h" yading@10: #include "libavutil/avassert.h" yading@10: #include "libavutil/timecode.h" yading@10: yading@10: static const uint8_t inv_non_linear_qscale[13] = { yading@10: 0, 2, 4, 6, 8, yading@10: 9,10,11,12,13,14,15,16, yading@10: }; yading@10: yading@10: static const uint8_t svcd_scan_offset_placeholder[14] = { yading@10: 0x10, 0x0E, yading@10: 0x00, 0x80, 0x81, yading@10: 0x00, 0x80, 0x81, yading@10: 0xff, 0xff, 0xff, yading@10: 0xff, 0xff, 0xff, yading@10: }; yading@10: yading@10: static void mpeg1_encode_block(MpegEncContext *s, yading@10: int16_t *block, yading@10: int component); yading@10: static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code); // RAL: f_code parameter added yading@10: yading@10: static uint8_t mv_penalty[MAX_FCODE+1][MAX_MV*2+1]; yading@10: static uint8_t fcode_tab[MAX_MV*2+1]; yading@10: yading@10: static uint8_t uni_mpeg1_ac_vlc_len [64*64*2]; yading@10: static uint8_t uni_mpeg2_ac_vlc_len [64*64*2]; yading@10: yading@10: /* simple include everything table for dc, first byte is bits number next 3 are code*/ yading@10: static uint32_t mpeg1_lum_dc_uni[512]; yading@10: static uint32_t mpeg1_chr_dc_uni[512]; yading@10: yading@10: static uint8_t mpeg1_index_run[2][64]; yading@10: static int8_t mpeg1_max_level[2][64]; yading@10: yading@10: static void init_uni_ac_vlc(RLTable *rl, uint8_t *uni_ac_vlc_len){ yading@10: int i; yading@10: yading@10: for(i=0; i<128; i++){ yading@10: int level= i-64; yading@10: int run; yading@10: if (!level) yading@10: continue; yading@10: for(run=0; run<64; run++){ yading@10: int len, code; yading@10: yading@10: int alevel= FFABS(level); yading@10: yading@10: if (alevel > rl->max_level[0][run]) yading@10: code= 111; /*rl->n*/ yading@10: else yading@10: code= rl->index_run[0][run] + alevel - 1; yading@10: yading@10: if (code < 111 /* rl->n */) { yading@10: /* length of vlc and sign */ yading@10: len= rl->table_vlc[code][1]+1; yading@10: } else { yading@10: len= rl->table_vlc[111/*rl->n*/][1]+6; yading@10: yading@10: if (alevel < 128) { yading@10: len += 8; yading@10: } else { yading@10: len += 16; yading@10: } yading@10: } yading@10: yading@10: uni_ac_vlc_len [UNI_AC_ENC_INDEX(run, i)]= len; yading@10: } yading@10: } yading@10: } yading@10: yading@10: yading@10: static int find_frame_rate_index(MpegEncContext *s){ yading@10: int i; yading@10: AVRational bestq= (AVRational){0, 0}; yading@10: AVRational ext; yading@10: AVRational target = av_inv_q(s->avctx->time_base); yading@10: yading@10: for(i=1;i<14;i++) { yading@10: if(s->avctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL && i>=9) break; yading@10: yading@10: for (ext.num=1; ext.num <= 4; ext.num++) { yading@10: for (ext.den=1; ext.den <= 32; ext.den++) { yading@10: AVRational q = av_mul_q(ext, ff_mpeg12_frame_rate_tab[i]); yading@10: yading@10: if(s->codec_id != AV_CODEC_ID_MPEG2VIDEO && (ext.den!=1 || ext.num!=1)) yading@10: continue; yading@10: if(av_gcd(ext.den, ext.num) != 1) yading@10: continue; yading@10: yading@10: if( bestq.num==0 yading@10: || av_nearer_q(target, bestq, q) < 0 yading@10: || ext.num==1 && ext.den==1 && av_nearer_q(target, bestq, q) == 0){ yading@10: bestq = q; yading@10: s->frame_rate_index= i; yading@10: s->mpeg2_frame_rate_ext.num = ext.num; yading@10: s->mpeg2_frame_rate_ext.den = ext.den; yading@10: } yading@10: } yading@10: } yading@10: } yading@10: if(av_cmp_q(target, bestq)) yading@10: return -1; yading@10: else yading@10: return 0; yading@10: } yading@10: yading@10: static av_cold int encode_init(AVCodecContext *avctx) yading@10: { yading@10: MpegEncContext *s = avctx->priv_data; yading@10: yading@10: if (avctx->codec_id == AV_CODEC_ID_MPEG1VIDEO && avctx->height > 2800) yading@10: avctx->thread_count = 1; yading@10: yading@10: if(ff_MPV_encode_init(avctx) < 0) yading@10: return -1; yading@10: yading@10: if(find_frame_rate_index(s) < 0){ yading@10: if(s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){ yading@10: av_log(avctx, AV_LOG_ERROR, "MPEG1/2 does not support %d/%d fps\n", avctx->time_base.den, avctx->time_base.num); yading@10: return -1; yading@10: }else{ yading@10: 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); yading@10: } yading@10: } yading@10: yading@10: if(avctx->profile == FF_PROFILE_UNKNOWN){ yading@10: if(avctx->level != FF_LEVEL_UNKNOWN){ yading@10: av_log(avctx, AV_LOG_ERROR, "Set profile and level\n"); yading@10: return -1; yading@10: } yading@10: avctx->profile = s->chroma_format == CHROMA_420 ? 4 : 0; /* Main or 4:2:2 */ yading@10: } yading@10: yading@10: if(avctx->level == FF_LEVEL_UNKNOWN){ yading@10: if(avctx->profile == 0){ /* 4:2:2 */ yading@10: if(avctx->width <= 720 && avctx->height <= 608) avctx->level = 5; /* Main */ yading@10: else avctx->level = 2; /* High */ yading@10: }else{ yading@10: if(avctx->profile != 1 && s->chroma_format != CHROMA_420){ yading@10: av_log(avctx, AV_LOG_ERROR, "Only High(1) and 4:2:2(0) profiles support 4:2:2 color sampling\n"); yading@10: return -1; yading@10: } yading@10: if(avctx->width <= 720 && avctx->height <= 576) avctx->level = 8; /* Main */ yading@10: else if(avctx->width <= 1440) avctx->level = 6; /* High 1440 */ yading@10: else avctx->level = 4; /* High */ yading@10: } yading@10: } yading@10: yading@10: if ((avctx->width & 0xFFF) == 0 && (avctx->height & 0xFFF) == 1) { yading@10: av_log(avctx, AV_LOG_ERROR, "Width / Height is invalid for MPEG2\n"); yading@10: return AVERROR(EINVAL); yading@10: } yading@10: yading@10: if (s->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL) { yading@10: if ((avctx->width & 0xFFF) == 0 || (avctx->height & 0xFFF) == 0) { yading@10: av_log(avctx, AV_LOG_ERROR, "Width or Height are not allowed to be multiplies of 4096\n" yading@10: "add '-strict %d' if you want to use them anyway.\n", FF_COMPLIANCE_UNOFFICIAL); yading@10: return AVERROR(EINVAL); yading@10: } yading@10: } yading@10: yading@10: s->drop_frame_timecode = s->drop_frame_timecode || !!(avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE); yading@10: if (s->drop_frame_timecode) yading@10: s->tc.flags |= AV_TIMECODE_FLAG_DROPFRAME; yading@10: if (s->drop_frame_timecode && s->frame_rate_index != 4) { yading@10: av_log(avctx, AV_LOG_ERROR, "Drop frame time code only allowed with 1001/30000 fps\n"); yading@10: return -1; yading@10: } yading@10: yading@10: if (s->tc_opt_str) { yading@10: AVRational rate = ff_mpeg12_frame_rate_tab[s->frame_rate_index]; yading@10: int ret = av_timecode_init_from_string(&s->tc, rate, s->tc_opt_str, s); yading@10: if (ret < 0) yading@10: return ret; yading@10: s->drop_frame_timecode = !!(s->tc.flags & AV_TIMECODE_FLAG_DROPFRAME); yading@10: s->avctx->timecode_frame_start = s->tc.start; yading@10: } else { yading@10: s->avctx->timecode_frame_start = 0; // default is -1 yading@10: } yading@10: return 0; yading@10: } yading@10: yading@10: static void put_header(MpegEncContext *s, int header) yading@10: { yading@10: avpriv_align_put_bits(&s->pb); yading@10: put_bits(&s->pb, 16, header>>16); yading@10: put_sbits(&s->pb, 16, header); yading@10: } yading@10: yading@10: /* put sequence header if needed */ yading@10: static void mpeg1_encode_sequence_header(MpegEncContext *s) yading@10: { yading@10: unsigned int vbv_buffer_size; yading@10: unsigned int fps, v; yading@10: int i; yading@10: uint64_t time_code; yading@10: float best_aspect_error= 1E10; yading@10: float aspect_ratio= av_q2d(s->avctx->sample_aspect_ratio); yading@10: int constraint_parameter_flag; yading@10: yading@10: if(aspect_ratio==0.0) aspect_ratio= 1.0; //pixel aspect 1:1 (VGA) yading@10: yading@10: if (s->current_picture.f.key_frame) { yading@10: AVRational framerate = ff_mpeg12_frame_rate_tab[s->frame_rate_index]; yading@10: yading@10: /* mpeg1 header repeated every gop */ yading@10: put_header(s, SEQ_START_CODE); yading@10: yading@10: put_sbits(&s->pb, 12, s->width & 0xFFF); yading@10: put_sbits(&s->pb, 12, s->height & 0xFFF); yading@10: yading@10: for(i=1; i<15; i++){ yading@10: float error= aspect_ratio; yading@10: if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO || i <=1) yading@10: error-= 1.0/ff_mpeg1_aspect[i]; yading@10: else yading@10: error-= av_q2d(ff_mpeg2_aspect[i])*s->height/s->width; yading@10: yading@10: error= FFABS(error); yading@10: yading@10: if(error < best_aspect_error){ yading@10: best_aspect_error= error; yading@10: s->aspect_ratio_info= i; yading@10: } yading@10: } yading@10: yading@10: put_bits(&s->pb, 4, s->aspect_ratio_info); yading@10: put_bits(&s->pb, 4, s->frame_rate_index); yading@10: yading@10: if(s->avctx->rc_max_rate){ yading@10: v = (s->avctx->rc_max_rate + 399) / 400; yading@10: if (v > 0x3ffff && s->codec_id == AV_CODEC_ID_MPEG1VIDEO) yading@10: v = 0x3ffff; yading@10: }else{ yading@10: v= 0x3FFFF; yading@10: } yading@10: yading@10: if(s->avctx->rc_buffer_size) yading@10: vbv_buffer_size = s->avctx->rc_buffer_size; yading@10: else yading@10: /* VBV calculation: Scaled so that a VCD has the proper VBV size of 40 kilobytes */ yading@10: vbv_buffer_size = (( 20 * s->bit_rate) / (1151929 / 2)) * 8 * 1024; yading@10: vbv_buffer_size= (vbv_buffer_size + 16383) / 16384; yading@10: yading@10: put_sbits(&s->pb, 18, v); yading@10: put_bits(&s->pb, 1, 1); /* marker */ yading@10: put_sbits(&s->pb, 10, vbv_buffer_size); yading@10: yading@10: constraint_parameter_flag= yading@10: s->width <= 768 && s->height <= 576 && yading@10: s->mb_width * s->mb_height <= 396 && yading@10: s->mb_width * s->mb_height * framerate.num <= framerate.den*396*25 && yading@10: framerate.num <= framerate.den*30 && yading@10: s->avctx->me_range && s->avctx->me_range < 128 && yading@10: vbv_buffer_size <= 20 && yading@10: v <= 1856000/400 && yading@10: s->codec_id == AV_CODEC_ID_MPEG1VIDEO; yading@10: yading@10: put_bits(&s->pb, 1, constraint_parameter_flag); yading@10: yading@10: ff_write_quant_matrix(&s->pb, s->avctx->intra_matrix); yading@10: ff_write_quant_matrix(&s->pb, s->avctx->inter_matrix); yading@10: yading@10: if(s->codec_id == AV_CODEC_ID_MPEG2VIDEO){ yading@10: put_header(s, EXT_START_CODE); yading@10: put_bits(&s->pb, 4, 1); //seq ext yading@10: yading@10: put_bits(&s->pb, 1, s->avctx->profile == 0); //escx 1 for 4:2:2 profile */ yading@10: yading@10: put_bits(&s->pb, 3, s->avctx->profile); //profile yading@10: put_bits(&s->pb, 4, s->avctx->level); //level yading@10: yading@10: put_bits(&s->pb, 1, s->progressive_sequence); yading@10: put_bits(&s->pb, 2, s->chroma_format); yading@10: put_bits(&s->pb, 2, s->width >>12); yading@10: put_bits(&s->pb, 2, s->height>>12); yading@10: put_bits(&s->pb, 12, v>>18); //bitrate ext yading@10: put_bits(&s->pb, 1, 1); //marker yading@10: put_bits(&s->pb, 8, vbv_buffer_size >>10); //vbv buffer ext yading@10: put_bits(&s->pb, 1, s->low_delay); yading@10: put_bits(&s->pb, 2, s->mpeg2_frame_rate_ext.num-1); // frame_rate_ext_n yading@10: put_bits(&s->pb, 5, s->mpeg2_frame_rate_ext.den-1); // frame_rate_ext_d yading@10: } yading@10: yading@10: put_header(s, GOP_START_CODE); yading@10: put_bits(&s->pb, 1, s->drop_frame_timecode); /* drop frame flag */ yading@10: /* time code : we must convert from the real frame rate to a yading@10: fake mpeg frame rate in case of low frame rate */ yading@10: fps = (framerate.num + framerate.den/2)/ framerate.den; yading@10: time_code = s->current_picture_ptr->f.coded_picture_number + s->avctx->timecode_frame_start; yading@10: yading@10: s->gop_picture_number = s->current_picture_ptr->f.coded_picture_number; yading@10: av_assert0(s->drop_frame_timecode == !!(s->tc.flags & AV_TIMECODE_FLAG_DROPFRAME)); yading@10: if (s->drop_frame_timecode) yading@10: time_code = av_timecode_adjust_ntsc_framenum2(time_code, fps); yading@10: put_bits(&s->pb, 5, (uint32_t)((time_code / (fps * 3600)) % 24)); yading@10: put_bits(&s->pb, 6, (uint32_t)((time_code / (fps * 60)) % 60)); yading@10: put_bits(&s->pb, 1, 1); yading@10: put_bits(&s->pb, 6, (uint32_t)((time_code / fps) % 60)); yading@10: put_bits(&s->pb, 6, (uint32_t)((time_code % fps))); yading@10: put_bits(&s->pb, 1, !!(s->flags & CODEC_FLAG_CLOSED_GOP)); yading@10: put_bits(&s->pb, 1, 0); /* broken link */ yading@10: } yading@10: } yading@10: yading@10: static inline void encode_mb_skip_run(MpegEncContext *s, int run){ yading@10: while (run >= 33) { yading@10: put_bits(&s->pb, 11, 0x008); yading@10: run -= 33; yading@10: } yading@10: put_bits(&s->pb, ff_mpeg12_mbAddrIncrTable[run][1], yading@10: ff_mpeg12_mbAddrIncrTable[run][0]); yading@10: } yading@10: yading@10: static av_always_inline void put_qscale(MpegEncContext *s) yading@10: { yading@10: if(s->q_scale_type){ yading@10: av_assert2(s->qscale>=1 && s->qscale <=12); yading@10: put_bits(&s->pb, 5, inv_non_linear_qscale[s->qscale]); yading@10: }else{ yading@10: put_bits(&s->pb, 5, s->qscale); yading@10: } yading@10: } yading@10: yading@10: void ff_mpeg1_encode_slice_header(MpegEncContext *s){ yading@10: if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && s->height > 2800) { yading@10: put_header(s, SLICE_MIN_START_CODE + (s->mb_y & 127)); yading@10: put_bits(&s->pb, 3, s->mb_y >> 7); /* slice_vertical_position_extension */ yading@10: } else { yading@10: put_header(s, SLICE_MIN_START_CODE + s->mb_y); yading@10: } yading@10: put_qscale(s); yading@10: put_bits(&s->pb, 1, 0); /* slice extra information */ yading@10: } yading@10: yading@10: void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number) yading@10: { yading@10: mpeg1_encode_sequence_header(s); yading@10: yading@10: /* mpeg1 picture header */ yading@10: put_header(s, PICTURE_START_CODE); yading@10: /* temporal reference */ yading@10: yading@10: // RAL: s->picture_number instead of s->fake_picture_number yading@10: put_bits(&s->pb, 10, (s->picture_number - yading@10: s->gop_picture_number) & 0x3ff); yading@10: put_bits(&s->pb, 3, s->pict_type); yading@10: yading@10: s->vbv_delay_ptr= s->pb.buf + put_bits_count(&s->pb)/8; yading@10: put_bits(&s->pb, 16, 0xFFFF); /* vbv_delay */ yading@10: yading@10: // RAL: Forward f_code also needed for B frames yading@10: if (s->pict_type == AV_PICTURE_TYPE_P || s->pict_type == AV_PICTURE_TYPE_B) { yading@10: put_bits(&s->pb, 1, 0); /* half pel coordinates */ yading@10: if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO) yading@10: put_bits(&s->pb, 3, s->f_code); /* forward_f_code */ yading@10: else yading@10: put_bits(&s->pb, 3, 7); /* forward_f_code */ yading@10: } yading@10: yading@10: // RAL: Backward f_code necessary for B frames yading@10: if (s->pict_type == AV_PICTURE_TYPE_B) { yading@10: put_bits(&s->pb, 1, 0); /* half pel coordinates */ yading@10: if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO) yading@10: put_bits(&s->pb, 3, s->b_code); /* backward_f_code */ yading@10: else yading@10: put_bits(&s->pb, 3, 7); /* backward_f_code */ yading@10: } yading@10: yading@10: put_bits(&s->pb, 1, 0); /* extra bit picture */ yading@10: yading@10: s->frame_pred_frame_dct = 1; yading@10: if(s->codec_id == AV_CODEC_ID_MPEG2VIDEO){ yading@10: put_header(s, EXT_START_CODE); yading@10: put_bits(&s->pb, 4, 8); //pic ext yading@10: if (s->pict_type == AV_PICTURE_TYPE_P || s->pict_type == AV_PICTURE_TYPE_B) { yading@10: put_bits(&s->pb, 4, s->f_code); yading@10: put_bits(&s->pb, 4, s->f_code); yading@10: }else{ yading@10: put_bits(&s->pb, 8, 255); yading@10: } yading@10: if (s->pict_type == AV_PICTURE_TYPE_B) { yading@10: put_bits(&s->pb, 4, s->b_code); yading@10: put_bits(&s->pb, 4, s->b_code); yading@10: }else{ yading@10: put_bits(&s->pb, 8, 255); yading@10: } yading@10: put_bits(&s->pb, 2, s->intra_dc_precision); yading@10: yading@10: av_assert0(s->picture_structure == PICT_FRAME); yading@10: put_bits(&s->pb, 2, s->picture_structure); yading@10: if (s->progressive_sequence) { yading@10: put_bits(&s->pb, 1, 0); /* no repeat */ yading@10: } else { yading@10: put_bits(&s->pb, 1, s->current_picture_ptr->f.top_field_first); yading@10: } yading@10: /* XXX: optimize the generation of this flag with entropy yading@10: measures */ yading@10: s->frame_pred_frame_dct = s->progressive_sequence; yading@10: yading@10: put_bits(&s->pb, 1, s->frame_pred_frame_dct); yading@10: put_bits(&s->pb, 1, s->concealment_motion_vectors); yading@10: put_bits(&s->pb, 1, s->q_scale_type); yading@10: put_bits(&s->pb, 1, s->intra_vlc_format); yading@10: put_bits(&s->pb, 1, s->alternate_scan); yading@10: put_bits(&s->pb, 1, s->repeat_first_field); yading@10: s->progressive_frame = s->progressive_sequence; yading@10: put_bits(&s->pb, 1, s->chroma_format == CHROMA_420 ? s->progressive_frame : 0); /* chroma_420_type */ yading@10: put_bits(&s->pb, 1, s->progressive_frame); yading@10: put_bits(&s->pb, 1, 0); //composite_display_flag yading@10: } yading@10: if (s->scan_offset) { yading@10: int i; yading@10: yading@10: put_header(s, USER_START_CODE); yading@10: for(i=0; ipb, 8, svcd_scan_offset_placeholder[i]); yading@10: } yading@10: } yading@10: yading@10: s->mb_y=0; yading@10: ff_mpeg1_encode_slice_header(s); yading@10: } yading@10: yading@10: static inline void put_mb_modes(MpegEncContext *s, int n, int bits, yading@10: int has_mv, int field_motion) yading@10: { yading@10: put_bits(&s->pb, n, bits); yading@10: if (!s->frame_pred_frame_dct) { yading@10: if (has_mv) yading@10: put_bits(&s->pb, 2, 2 - field_motion); /* motion_type: frame/field */ yading@10: put_bits(&s->pb, 1, s->interlaced_dct); yading@10: } yading@10: } yading@10: yading@10: static av_always_inline void mpeg1_encode_mb_internal(MpegEncContext *s, yading@10: int16_t block[6][64], yading@10: int motion_x, int motion_y, yading@10: int mb_block_count) yading@10: { yading@10: int i, cbp; yading@10: const int mb_x = s->mb_x; yading@10: const int mb_y = s->mb_y; yading@10: const int first_mb= mb_x == s->resync_mb_x && mb_y == s->resync_mb_y; yading@10: yading@10: /* compute cbp */ yading@10: cbp = 0; yading@10: for(i=0;iblock_last_index[i] >= 0) yading@10: cbp |= 1 << (mb_block_count - 1 - i); yading@10: } yading@10: yading@10: if (cbp == 0 && !first_mb && s->mv_type == MV_TYPE_16X16 && yading@10: (mb_x != s->mb_width - 1 || (mb_y != s->end_mb_y - 1 && s->codec_id == AV_CODEC_ID_MPEG1VIDEO)) && yading@10: ((s->pict_type == AV_PICTURE_TYPE_P && (motion_x | motion_y) == 0) || yading@10: (s->pict_type == AV_PICTURE_TYPE_B && 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) | yading@10: ((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))) { yading@10: s->mb_skip_run++; yading@10: s->qscale -= s->dquant; yading@10: s->skip_count++; yading@10: s->misc_bits++; yading@10: s->last_bits++; yading@10: if(s->pict_type == AV_PICTURE_TYPE_P){ yading@10: s->last_mv[0][1][0]= s->last_mv[0][0][0]= yading@10: s->last_mv[0][1][1]= s->last_mv[0][0][1]= 0; yading@10: } yading@10: } else { yading@10: if(first_mb){ yading@10: av_assert0(s->mb_skip_run == 0); yading@10: encode_mb_skip_run(s, s->mb_x); yading@10: }else{ yading@10: encode_mb_skip_run(s, s->mb_skip_run); yading@10: } yading@10: yading@10: if (s->pict_type == AV_PICTURE_TYPE_I) { yading@10: if(s->dquant && cbp){ yading@10: put_mb_modes(s, 2, 1, 0, 0); /* macroblock_type : macroblock_quant = 1 */ yading@10: put_qscale(s); yading@10: }else{ yading@10: put_mb_modes(s, 1, 1, 0, 0); /* macroblock_type : macroblock_quant = 0 */ yading@10: s->qscale -= s->dquant; yading@10: } yading@10: s->misc_bits+= get_bits_diff(s); yading@10: s->i_count++; yading@10: } else if (s->mb_intra) { yading@10: if(s->dquant && cbp){ yading@10: put_mb_modes(s, 6, 0x01, 0, 0); yading@10: put_qscale(s); yading@10: }else{ yading@10: put_mb_modes(s, 5, 0x03, 0, 0); yading@10: s->qscale -= s->dquant; yading@10: } yading@10: s->misc_bits+= get_bits_diff(s); yading@10: s->i_count++; yading@10: memset(s->last_mv, 0, sizeof(s->last_mv)); yading@10: } else if (s->pict_type == AV_PICTURE_TYPE_P) { yading@10: if(s->mv_type == MV_TYPE_16X16){ yading@10: if (cbp != 0) { yading@10: if ((motion_x|motion_y) == 0) { yading@10: if(s->dquant){ yading@10: put_mb_modes(s, 5, 1, 0, 0); /* macroblock_pattern & quant */ yading@10: put_qscale(s); yading@10: }else{ yading@10: put_mb_modes(s, 2, 1, 0, 0); /* macroblock_pattern only */ yading@10: } yading@10: s->misc_bits+= get_bits_diff(s); yading@10: } else { yading@10: if(s->dquant){ yading@10: put_mb_modes(s, 5, 2, 1, 0); /* motion + cbp */ yading@10: put_qscale(s); yading@10: }else{ yading@10: put_mb_modes(s, 1, 1, 1, 0); /* motion + cbp */ yading@10: } yading@10: s->misc_bits+= get_bits_diff(s); yading@10: mpeg1_encode_motion(s, motion_x - s->last_mv[0][0][0], s->f_code); // RAL: f_code parameter added yading@10: mpeg1_encode_motion(s, motion_y - s->last_mv[0][0][1], s->f_code); // RAL: f_code parameter added yading@10: s->mv_bits+= get_bits_diff(s); yading@10: } yading@10: } else { yading@10: put_bits(&s->pb, 3, 1); /* motion only */ yading@10: if (!s->frame_pred_frame_dct) yading@10: put_bits(&s->pb, 2, 2); /* motion_type: frame */ yading@10: s->misc_bits+= get_bits_diff(s); yading@10: mpeg1_encode_motion(s, motion_x - s->last_mv[0][0][0], s->f_code); // RAL: f_code parameter added yading@10: mpeg1_encode_motion(s, motion_y - s->last_mv[0][0][1], s->f_code); // RAL: f_code parameter added yading@10: s->qscale -= s->dquant; yading@10: s->mv_bits+= get_bits_diff(s); yading@10: } yading@10: s->last_mv[0][1][0]= s->last_mv[0][0][0]= motion_x; yading@10: s->last_mv[0][1][1]= s->last_mv[0][0][1]= motion_y; yading@10: }else{ yading@10: av_assert2(!s->frame_pred_frame_dct && s->mv_type == MV_TYPE_FIELD); yading@10: yading@10: if (cbp) { yading@10: if(s->dquant){ yading@10: put_mb_modes(s, 5, 2, 1, 1); /* motion + cbp */ yading@10: put_qscale(s); yading@10: }else{ yading@10: put_mb_modes(s, 1, 1, 1, 1); /* motion + cbp */ yading@10: } yading@10: } else { yading@10: put_bits(&s->pb, 3, 1); /* motion only */ yading@10: put_bits(&s->pb, 2, 1); /* motion_type: field */ yading@10: s->qscale -= s->dquant; yading@10: } yading@10: s->misc_bits+= get_bits_diff(s); yading@10: for(i=0; i<2; i++){ yading@10: put_bits(&s->pb, 1, s->field_select[0][i]); yading@10: mpeg1_encode_motion(s, s->mv[0][i][0] - s->last_mv[0][i][0] , s->f_code); yading@10: mpeg1_encode_motion(s, s->mv[0][i][1] - (s->last_mv[0][i][1]>>1), s->f_code); yading@10: s->last_mv[0][i][0]= s->mv[0][i][0]; yading@10: s->last_mv[0][i][1]= 2*s->mv[0][i][1]; yading@10: } yading@10: s->mv_bits+= get_bits_diff(s); yading@10: } yading@10: if(cbp) { yading@10: if (s->chroma_y_shift) { yading@10: put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp][1], ff_mpeg12_mbPatTable[cbp][0]); yading@10: } else { yading@10: put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp>>2][1], ff_mpeg12_mbPatTable[cbp>>2][0]); yading@10: put_sbits(&s->pb, 2, cbp); yading@10: } yading@10: } yading@10: s->f_count++; yading@10: } else{ yading@10: if(s->mv_type == MV_TYPE_16X16){ yading@10: if (cbp){ // With coded bloc pattern yading@10: if (s->dquant) { yading@10: if(s->mv_dir == MV_DIR_FORWARD) yading@10: put_mb_modes(s, 6, 3, 1, 0); yading@10: else yading@10: put_mb_modes(s, 8-s->mv_dir, 2, 1, 0); yading@10: put_qscale(s); yading@10: } else { yading@10: put_mb_modes(s, 5-s->mv_dir, 3, 1, 0); yading@10: } yading@10: }else{ // No coded bloc pattern yading@10: put_bits(&s->pb, 5-s->mv_dir, 2); yading@10: if (!s->frame_pred_frame_dct) yading@10: put_bits(&s->pb, 2, 2); /* motion_type: frame */ yading@10: s->qscale -= s->dquant; yading@10: } yading@10: s->misc_bits += get_bits_diff(s); yading@10: if (s->mv_dir&MV_DIR_FORWARD){ yading@10: mpeg1_encode_motion(s, s->mv[0][0][0] - s->last_mv[0][0][0], s->f_code); yading@10: mpeg1_encode_motion(s, s->mv[0][0][1] - s->last_mv[0][0][1], s->f_code); yading@10: s->last_mv[0][0][0]=s->last_mv[0][1][0]= s->mv[0][0][0]; yading@10: s->last_mv[0][0][1]=s->last_mv[0][1][1]= s->mv[0][0][1]; yading@10: s->f_count++; yading@10: } yading@10: if (s->mv_dir&MV_DIR_BACKWARD){ yading@10: mpeg1_encode_motion(s, s->mv[1][0][0] - s->last_mv[1][0][0], s->b_code); yading@10: mpeg1_encode_motion(s, s->mv[1][0][1] - s->last_mv[1][0][1], s->b_code); yading@10: s->last_mv[1][0][0]=s->last_mv[1][1][0]= s->mv[1][0][0]; yading@10: s->last_mv[1][0][1]=s->last_mv[1][1][1]= s->mv[1][0][1]; yading@10: s->b_count++; yading@10: } yading@10: }else{ yading@10: av_assert2(s->mv_type == MV_TYPE_FIELD); yading@10: av_assert2(!s->frame_pred_frame_dct); yading@10: if (cbp){ // With coded bloc pattern yading@10: if (s->dquant) { yading@10: if(s->mv_dir == MV_DIR_FORWARD) yading@10: put_mb_modes(s, 6, 3, 1, 1); yading@10: else yading@10: put_mb_modes(s, 8-s->mv_dir, 2, 1, 1); yading@10: put_qscale(s); yading@10: } else { yading@10: put_mb_modes(s, 5-s->mv_dir, 3, 1, 1); yading@10: } yading@10: }else{ // No coded bloc pattern yading@10: put_bits(&s->pb, 5-s->mv_dir, 2); yading@10: put_bits(&s->pb, 2, 1); /* motion_type: field */ yading@10: s->qscale -= s->dquant; yading@10: } yading@10: s->misc_bits += get_bits_diff(s); yading@10: if (s->mv_dir&MV_DIR_FORWARD){ yading@10: for(i=0; i<2; i++){ yading@10: put_bits(&s->pb, 1, s->field_select[0][i]); yading@10: mpeg1_encode_motion(s, s->mv[0][i][0] - s->last_mv[0][i][0] , s->f_code); yading@10: mpeg1_encode_motion(s, s->mv[0][i][1] - (s->last_mv[0][i][1]>>1), s->f_code); yading@10: s->last_mv[0][i][0]= s->mv[0][i][0]; yading@10: s->last_mv[0][i][1]= 2*s->mv[0][i][1]; yading@10: } yading@10: s->f_count++; yading@10: } yading@10: if (s->mv_dir&MV_DIR_BACKWARD){ yading@10: for(i=0; i<2; i++){ yading@10: put_bits(&s->pb, 1, s->field_select[1][i]); yading@10: mpeg1_encode_motion(s, s->mv[1][i][0] - s->last_mv[1][i][0] , s->b_code); yading@10: mpeg1_encode_motion(s, s->mv[1][i][1] - (s->last_mv[1][i][1]>>1), s->b_code); yading@10: s->last_mv[1][i][0]= s->mv[1][i][0]; yading@10: s->last_mv[1][i][1]= 2*s->mv[1][i][1]; yading@10: } yading@10: s->b_count++; yading@10: } yading@10: } yading@10: s->mv_bits += get_bits_diff(s); yading@10: if(cbp) { yading@10: if (s->chroma_y_shift) { yading@10: put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp][1], ff_mpeg12_mbPatTable[cbp][0]); yading@10: } else { yading@10: put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp>>2][1], ff_mpeg12_mbPatTable[cbp>>2][0]); yading@10: put_sbits(&s->pb, 2, cbp); yading@10: } yading@10: } yading@10: } yading@10: for(i=0;imb_skip_run = 0; yading@10: if(s->mb_intra) yading@10: s->i_tex_bits+= get_bits_diff(s); yading@10: else yading@10: s->p_tex_bits+= get_bits_diff(s); yading@10: } yading@10: } yading@10: yading@10: void ff_mpeg1_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y) yading@10: { yading@10: if (s->chroma_format == CHROMA_420) mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 6); yading@10: else mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 8); yading@10: } yading@10: yading@10: // RAL: Parameter added: f_or_b_code yading@10: static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code) yading@10: { yading@10: if (val == 0) { yading@10: /* zero vector */ yading@10: put_bits(&s->pb, yading@10: ff_mpeg12_mbMotionVectorTable[0][1], yading@10: ff_mpeg12_mbMotionVectorTable[0][0]); yading@10: } else { yading@10: int code, sign, bits; yading@10: int bit_size = f_or_b_code - 1; yading@10: int range = 1 << bit_size; yading@10: /* modulo encoding */ yading@10: val = sign_extend(val, 5 + bit_size); yading@10: yading@10: if (val >= 0) { yading@10: val--; yading@10: code = (val >> bit_size) + 1; yading@10: bits = val & (range - 1); yading@10: sign = 0; yading@10: } else { yading@10: val = -val; yading@10: val--; yading@10: code = (val >> bit_size) + 1; yading@10: bits = val & (range - 1); yading@10: sign = 1; yading@10: } yading@10: yading@10: av_assert2(code > 0 && code <= 16); yading@10: yading@10: put_bits(&s->pb, yading@10: ff_mpeg12_mbMotionVectorTable[code][1], yading@10: ff_mpeg12_mbMotionVectorTable[code][0]); yading@10: yading@10: put_bits(&s->pb, 1, sign); yading@10: if (bit_size > 0) { yading@10: put_bits(&s->pb, bit_size, bits); yading@10: } yading@10: } yading@10: } yading@10: yading@10: void ff_mpeg1_encode_init(MpegEncContext *s) yading@10: { yading@10: static int done=0; yading@10: yading@10: ff_mpeg12_common_init(s); yading@10: yading@10: if(!done){ yading@10: int f_code; yading@10: int mv; yading@10: int i; yading@10: yading@10: done=1; yading@10: ff_init_rl(&ff_rl_mpeg1, ff_mpeg12_static_rl_table_store[0]); yading@10: ff_init_rl(&ff_rl_mpeg2, ff_mpeg12_static_rl_table_store[1]); yading@10: yading@10: for(i=0; i<64; i++) yading@10: { yading@10: mpeg1_max_level[0][i]= ff_rl_mpeg1.max_level[0][i]; yading@10: mpeg1_index_run[0][i]= ff_rl_mpeg1.index_run[0][i]; yading@10: } yading@10: yading@10: init_uni_ac_vlc(&ff_rl_mpeg1, uni_mpeg1_ac_vlc_len); yading@10: if(s->intra_vlc_format) yading@10: init_uni_ac_vlc(&ff_rl_mpeg2, uni_mpeg2_ac_vlc_len); yading@10: yading@10: /* build unified dc encoding tables */ yading@10: for(i=-255; i<256; i++) yading@10: { yading@10: int adiff, index; yading@10: int bits, code; yading@10: int diff=i; yading@10: yading@10: adiff = FFABS(diff); yading@10: if(diff<0) diff--; yading@10: index = av_log2(2*adiff); yading@10: yading@10: bits= ff_mpeg12_vlc_dc_lum_bits[index] + index; yading@10: code= (ff_mpeg12_vlc_dc_lum_code[index]<> bit_size) + 1; yading@10: if(code<17){ yading@10: len= ff_mpeg12_mbMotionVectorTable[code][1] + 1 + bit_size; yading@10: }else{ yading@10: len= ff_mpeg12_mbMotionVectorTable[16][1] + 2 + bit_size; yading@10: } yading@10: } yading@10: yading@10: mv_penalty[f_code][mv+MAX_MV]= len; yading@10: } yading@10: } yading@10: yading@10: yading@10: for(f_code=MAX_FCODE; f_code>0; f_code--){ yading@10: for(mv=-(8<me.mv_penalty= mv_penalty; yading@10: s->fcode_tab= fcode_tab; yading@10: if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO){ yading@10: s->min_qcoeff=-255; yading@10: s->max_qcoeff= 255; yading@10: }else{ yading@10: s->min_qcoeff=-2047; yading@10: s->max_qcoeff= 2047; yading@10: } yading@10: if (s->intra_vlc_format) { yading@10: s->intra_ac_vlc_length= yading@10: s->intra_ac_vlc_last_length= uni_mpeg2_ac_vlc_len; yading@10: } else { yading@10: s->intra_ac_vlc_length= yading@10: s->intra_ac_vlc_last_length= uni_mpeg1_ac_vlc_len; yading@10: } yading@10: s->inter_ac_vlc_length= yading@10: s->inter_ac_vlc_last_length= uni_mpeg1_ac_vlc_len; yading@10: } yading@10: yading@10: static inline void encode_dc(MpegEncContext *s, int diff, int component) yading@10: { yading@10: if(((unsigned) (diff+255)) >= 511){ yading@10: int index; yading@10: yading@10: if(diff<0){ yading@10: index= av_log2_16bit(-2*diff); yading@10: diff--; yading@10: }else{ yading@10: index= av_log2_16bit(2*diff); yading@10: } yading@10: if (component == 0) { yading@10: put_bits( yading@10: &s->pb, yading@10: ff_mpeg12_vlc_dc_lum_bits[index] + index, yading@10: (ff_mpeg12_vlc_dc_lum_code[index]<pb, yading@10: ff_mpeg12_vlc_dc_chroma_bits[index] + index, yading@10: (ff_mpeg12_vlc_dc_chroma_code[index]<pb, yading@10: mpeg1_lum_dc_uni[diff+255]&0xFF, yading@10: mpeg1_lum_dc_uni[diff+255]>>8); yading@10: } else { yading@10: put_bits( yading@10: &s->pb, yading@10: mpeg1_chr_dc_uni[diff+255]&0xFF, yading@10: mpeg1_chr_dc_uni[diff+255]>>8); yading@10: } yading@10: } yading@10: } yading@10: yading@10: static void mpeg1_encode_block(MpegEncContext *s, yading@10: int16_t *block, yading@10: int n) yading@10: { yading@10: int alevel, level, last_non_zero, dc, diff, i, j, run, last_index, sign; yading@10: int code, component; yading@10: const uint16_t (*table_vlc)[2] = ff_rl_mpeg1.table_vlc; yading@10: yading@10: last_index = s->block_last_index[n]; yading@10: yading@10: /* DC coef */ yading@10: if (s->mb_intra) { yading@10: component = (n <= 3 ? 0 : (n&1) + 1); yading@10: dc = block[0]; /* overflow is impossible */ yading@10: diff = dc - s->last_dc[component]; yading@10: encode_dc(s, diff, component); yading@10: s->last_dc[component] = dc; yading@10: i = 1; yading@10: if (s->intra_vlc_format) yading@10: table_vlc = ff_rl_mpeg2.table_vlc; yading@10: } else { yading@10: /* encode the first coefficient : needs to be done here because yading@10: it is handled slightly differently */ yading@10: level = block[0]; yading@10: if (abs(level) == 1) { yading@10: code = ((uint32_t)level >> 31); /* the sign bit */ yading@10: put_bits(&s->pb, 2, code | 0x02); yading@10: i = 1; yading@10: } else { yading@10: i = 0; yading@10: last_non_zero = -1; yading@10: goto next_coef; yading@10: } yading@10: } yading@10: yading@10: /* now quantify & encode AC coefs */ yading@10: last_non_zero = i - 1; yading@10: yading@10: for(;i<=last_index;i++) { yading@10: j = s->intra_scantable.permutated[i]; yading@10: level = block[j]; yading@10: next_coef: yading@10: /* encode using VLC */ yading@10: if (level != 0) { yading@10: run = i - last_non_zero - 1; yading@10: yading@10: alevel= level; yading@10: MASK_ABS(sign, alevel); yading@10: sign&=1; yading@10: yading@10: if (alevel <= mpeg1_max_level[0][run]){ yading@10: code= mpeg1_index_run[0][run] + alevel - 1; yading@10: /* store the vlc & sign at once */ yading@10: put_bits(&s->pb, table_vlc[code][1]+1, (table_vlc[code][0]<<1) + sign); yading@10: } else { yading@10: /* escape seems to be pretty rare <5% so I do not optimize it */ yading@10: put_bits(&s->pb, table_vlc[111][1], table_vlc[111][0]); yading@10: /* escape: only clip in this case */ yading@10: put_bits(&s->pb, 6, run); yading@10: if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO){ yading@10: if (alevel < 128) { yading@10: put_sbits(&s->pb, 8, level); yading@10: } else { yading@10: if (level < 0) { yading@10: put_bits(&s->pb, 16, 0x8001 + level + 255); yading@10: } else { yading@10: put_sbits(&s->pb, 16, level); yading@10: } yading@10: } yading@10: }else{ yading@10: put_sbits(&s->pb, 12, level); yading@10: } yading@10: } yading@10: last_non_zero = i; yading@10: } yading@10: } yading@10: /* end of block */ yading@10: put_bits(&s->pb, table_vlc[112][1], table_vlc[112][0]); yading@10: } yading@10: yading@10: #define OFFSET(x) offsetof(MpegEncContext, x) yading@10: #define VE AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM yading@10: #define COMMON_OPTS\ yading@10: { "gop_timecode", "MPEG GOP Timecode in hh:mm:ss[:;.]ff format", OFFSET(tc_opt_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, VE },\ yading@10: { "intra_vlc", "Use MPEG-2 intra VLC table.", OFFSET(intra_vlc_format), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },\ yading@10: { "drop_frame_timecode", "Timecode is in drop frame format.", OFFSET(drop_frame_timecode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE}, \ yading@10: { "scan_offset", "Reserve space for SVCD scan offset user data.", OFFSET(scan_offset), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, yading@10: yading@10: static const AVOption mpeg1_options[] = { yading@10: COMMON_OPTS yading@10: FF_MPV_COMMON_OPTS yading@10: { NULL }, yading@10: }; yading@10: yading@10: static const AVOption mpeg2_options[] = { yading@10: COMMON_OPTS yading@10: { "non_linear_quant", "Use nonlinear quantizer.", OFFSET(q_scale_type), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, yading@10: { "alternate_scan", "Enable alternate scantable.", OFFSET(alternate_scan), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, yading@10: FF_MPV_COMMON_OPTS yading@10: { NULL }, yading@10: }; yading@10: yading@10: #define mpeg12_class(x)\ yading@10: static const AVClass mpeg## x ##_class = {\ yading@10: .class_name = "mpeg" #x "video encoder",\ yading@10: .item_name = av_default_item_name,\ yading@10: .option = mpeg## x ##_options,\ yading@10: .version = LIBAVUTIL_VERSION_INT,\ yading@10: }; yading@10: yading@10: mpeg12_class(1) yading@10: mpeg12_class(2) yading@10: yading@10: AVCodec ff_mpeg1video_encoder = { yading@10: .name = "mpeg1video", yading@10: .type = AVMEDIA_TYPE_VIDEO, yading@10: .id = AV_CODEC_ID_MPEG1VIDEO, yading@10: .priv_data_size = sizeof(MpegEncContext), yading@10: .init = encode_init, yading@10: .encode2 = ff_MPV_encode_picture, yading@10: .close = ff_MPV_encode_end, yading@10: .supported_framerates = ff_mpeg12_frame_rate_tab + 1, yading@10: .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, yading@10: AV_PIX_FMT_NONE }, yading@10: .capabilities = CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS, yading@10: .long_name = NULL_IF_CONFIG_SMALL("MPEG-1 video"), yading@10: .priv_class = &mpeg1_class, yading@10: }; yading@10: yading@10: AVCodec ff_mpeg2video_encoder = { yading@10: .name = "mpeg2video", yading@10: .type = AVMEDIA_TYPE_VIDEO, yading@10: .id = AV_CODEC_ID_MPEG2VIDEO, yading@10: .priv_data_size = sizeof(MpegEncContext), yading@10: .init = encode_init, yading@10: .encode2 = ff_MPV_encode_picture, yading@10: .close = ff_MPV_encode_end, yading@10: .supported_framerates = ff_mpeg2_frame_rate_tab, yading@10: .pix_fmts = (const enum AVPixelFormat[]){ yading@10: AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_NONE yading@10: }, yading@10: .capabilities = CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS, yading@10: .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video"), yading@10: .priv_class = &mpeg2_class, yading@10: };