diff options
| -rw-r--r-- | libavcodec/Makefile | 4 | ||||
| -rw-r--r-- | libavcodec/wmv2.c | 716 | ||||
| -rw-r--r-- | libavcodec/wmv2.h | 58 | ||||
| -rw-r--r-- | libavcodec/wmv2dec.c | 487 | ||||
| -rw-r--r-- | libavcodec/wmv2enc.c | 240 |
5 files changed, 789 insertions, 716 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile index d005d192fe..8c9bc3fdfd 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -210,8 +210,8 @@ OBJS-$(CONFIG_WMAV1_ENCODER) += wmaenc.o wma.o mdct.o fft.o OBJS-$(CONFIG_WMAV2_ENCODER) += wmaenc.o wma.o mdct.o fft.o OBJS-$(CONFIG_WMV1_DECODER) += h263dec.o h263.o OBJS-$(CONFIG_WMV1_ENCODER) += mpegvideo_enc.o motion_est.o ratecontrol.o h263.o -OBJS-$(CONFIG_WMV2_DECODER) += wmv2.o msmpeg4.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o -OBJS-$(CONFIG_WMV2_ENCODER) += wmv2.o msmpeg4.o msmpeg4data.o mpegvideo_enc.o motion_est.o ratecontrol.o h263.o intrax8.o intrax8dsp.o +OBJS-$(CONFIG_WMV2_DECODER) += wmv2dec.o wmv2.o msmpeg4.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o +OBJS-$(CONFIG_WMV2_ENCODER) += wmv2enc.o wmv2.o msmpeg4.o msmpeg4data.o mpegvideo_enc.o motion_est.o ratecontrol.o h263.o OBJS-$(CONFIG_WMV3_DECODER) += vc1.o vc1data.o vc1dsp.o OBJS-$(CONFIG_WNV1_DECODER) += wnv1.o OBJS-$(CONFIG_WS_SND1_DECODER) += ws-snd1.o diff --git a/libavcodec/wmv2.c b/libavcodec/wmv2.c index 365f5654f8..d634a62bd9 100644 --- a/libavcodec/wmv2.c +++ b/libavcodec/wmv2.c @@ -18,576 +18,20 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ -/** - * @file wmv2.c - * wmv2 codec. - */ - #include "avcodec.h" -#include "dsputil.h" #include "mpegvideo.h" -#include "msmpeg4.h" #include "msmpeg4data.h" #include "simple_idct.h" -#include "intrax8.h" - -#define SKIP_TYPE_NONE 0 -#define SKIP_TYPE_MPEG 1 -#define SKIP_TYPE_ROW 2 -#define SKIP_TYPE_COL 3 - +#include "wmv2.h" -typedef struct Wmv2Context{ - MpegEncContext s; - IntraX8Context x8; - int j_type_bit; - int j_type; - int abt_flag; - int abt_type; - int abt_type_table[6]; - int per_mb_abt; - int per_block_abt; - int mspel_bit; - int cbp_table_index; - int top_left_mv_flag; - int per_mb_rl_bit; - int skip_type; - int hshift; - ScanTable abt_scantable[2]; - DECLARE_ALIGNED_8(DCTELEM, abt_block2[6][64]); -}Wmv2Context; - -static void wmv2_common_init(Wmv2Context * w){ +void ff_wmv2_common_init(Wmv2Context * w){ MpegEncContext * const s= &w->s; ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[0], wmv2_scantableA); ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[1], wmv2_scantableB); } -#ifdef CONFIG_WMV2_ENCODER - -static int encode_ext_header(Wmv2Context *w){ - MpegEncContext * const s= &w->s; - PutBitContext pb; - int code; - - init_put_bits(&pb, s->avctx->extradata, s->avctx->extradata_size); - - put_bits(&pb, 5, s->avctx->time_base.den / s->avctx->time_base.num); //yes 29.97 -> 29 - put_bits(&pb, 11, FFMIN(s->bit_rate/1024, 2047)); - - put_bits(&pb, 1, w->mspel_bit=1); - put_bits(&pb, 1, s->loop_filter); - put_bits(&pb, 1, w->abt_flag=1); - put_bits(&pb, 1, w->j_type_bit=1); - put_bits(&pb, 1, w->top_left_mv_flag=0); - put_bits(&pb, 1, w->per_mb_rl_bit=1); - put_bits(&pb, 3, code=1); - - flush_put_bits(&pb); - - s->slice_height = s->mb_height / code; - - return 0; -} - -static int wmv2_encode_init(AVCodecContext *avctx){ - Wmv2Context * const w= avctx->priv_data; - - if(MPV_encode_init(avctx) < 0) - return -1; - - wmv2_common_init(w); - - avctx->extradata_size= 4; - avctx->extradata= av_mallocz(avctx->extradata_size + 10); - encode_ext_header(w); - - return 0; -} - -#if 0 /* unused, remove? */ -static int wmv2_encode_end(AVCodecContext *avctx){ - - if(MPV_encode_end(avctx) < 0) - return -1; - - avctx->extradata_size= 0; - av_freep(&avctx->extradata); - - return 0; -} -#endif - -int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number) -{ - Wmv2Context * const w= (Wmv2Context*)s; - - put_bits(&s->pb, 1, s->pict_type - 1); - if(s->pict_type == I_TYPE){ - put_bits(&s->pb, 7, 0); - } - put_bits(&s->pb, 5, s->qscale); - - s->dc_table_index = 1; - s->mv_table_index = 1; /* only if P frame */ -// s->use_skip_mb_code = 1; /* only if P frame */ - s->per_mb_rl_table = 0; - s->mspel= 0; - w->per_mb_abt=0; - w->abt_type=0; - w->j_type=0; - - assert(s->flipflop_rounding); - - if (s->pict_type == I_TYPE) { - assert(s->no_rounding==1); - if(w->j_type_bit) put_bits(&s->pb, 1, w->j_type); - - if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table); - - if(!s->per_mb_rl_table){ - ff_msmpeg4_code012(&s->pb, s->rl_chroma_table_index); - ff_msmpeg4_code012(&s->pb, s->rl_table_index); - } - - put_bits(&s->pb, 1, s->dc_table_index); - - s->inter_intra_pred= 0; - }else{ - int cbp_index; - - put_bits(&s->pb, 2, SKIP_TYPE_NONE); - - ff_msmpeg4_code012(&s->pb, cbp_index=0); - if(s->qscale <= 10){ - int map[3]= {0,2,1}; - w->cbp_table_index= map[cbp_index]; - }else if(s->qscale <= 20){ - int map[3]= {1,0,2}; - w->cbp_table_index= map[cbp_index]; - }else{ - int map[3]= {2,1,0}; - w->cbp_table_index= map[cbp_index]; - } - - if(w->mspel_bit) put_bits(&s->pb, 1, s->mspel); - - if(w->abt_flag){ - put_bits(&s->pb, 1, w->per_mb_abt^1); - if(!w->per_mb_abt){ - ff_msmpeg4_code012(&s->pb, w->abt_type); - } - } - - if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table); - - if(!s->per_mb_rl_table){ - ff_msmpeg4_code012(&s->pb, s->rl_table_index); - s->rl_chroma_table_index = s->rl_table_index; - } - put_bits(&s->pb, 1, s->dc_table_index); - put_bits(&s->pb, 1, s->mv_table_index); - - s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE); - } - s->esc3_level_length= 0; - s->esc3_run_length= 0; - - return 0; -} - -/* Nearly identical to wmv1 but that is just because we do not use the - * useless M$ crap features. It is duplicated here in case someone wants - * to add support for these crap features. */ -void ff_wmv2_encode_mb(MpegEncContext * s, - DCTELEM block[6][64], - int motion_x, int motion_y) -{ - Wmv2Context * const w= (Wmv2Context*)s; - int cbp, coded_cbp, i; - int pred_x, pred_y; - uint8_t *coded_block; - - ff_msmpeg4_handle_slices(s); - - if (!s->mb_intra) { - /* compute cbp */ - cbp = 0; - for (i = 0; i < 6; i++) { - if (s->block_last_index[i] >= 0) - cbp |= 1 << (5 - i); - } - - put_bits(&s->pb, - wmv2_inter_table[w->cbp_table_index][cbp + 64][1], - wmv2_inter_table[w->cbp_table_index][cbp + 64][0]); - - /* motion vector */ - h263_pred_motion(s, 0, 0, &pred_x, &pred_y); - ff_msmpeg4_encode_motion(s, motion_x - pred_x, - motion_y - pred_y); - } else { - /* compute cbp */ - cbp = 0; - coded_cbp = 0; - for (i = 0; i < 6; i++) { - int val, pred; - val = (s->block_last_index[i] >= 1); - cbp |= val << (5 - i); - if (i < 4) { - /* predict value for close blocks only for luma */ - pred = ff_msmpeg4_coded_block_pred(s, i, &coded_block); - *coded_block = val; - val = val ^ pred; - } - coded_cbp |= val << (5 - i); - } -#if 0 - if (coded_cbp) - printf("cbp=%x %x\n", cbp, coded_cbp); -#endif - - if (s->pict_type == I_TYPE) { - put_bits(&s->pb, - ff_msmp4_mb_i_table[coded_cbp][1], ff_msmp4_mb_i_table[coded_cbp][0]); - } else { - put_bits(&s->pb, - wmv2_inter_table[w->cbp_table_index][cbp][1], - wmv2_inter_table[w->cbp_table_index][cbp][0]); - } - put_bits(&s->pb, 1, 0); /* no AC prediction yet */ - if(s->inter_intra_pred){ - s->h263_aic_dir=0; - put_bits(&s->pb, table_inter_intra[s->h263_aic_dir][1], table_inter_intra[s->h263_aic_dir][0]); - } - } - - for (i = 0; i < 6; i++) { - ff_msmpeg4_encode_block(s, block[i], i); - } -} -#endif //CONFIG_WMV2_ENCODER - -static void parse_mb_skip(Wmv2Context * w){ - int mb_x, mb_y; - MpegEncContext * const s= &w->s; - uint32_t * const mb_type= s->current_picture_ptr->mb_type; - - w->skip_type= get_bits(&s->gb, 2); - switch(w->skip_type){ - case SKIP_TYPE_NONE: - for(mb_y=0; mb_y<s->mb_height; mb_y++){ - for(mb_x=0; mb_x<s->mb_width; mb_x++){ - mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_16x16 | MB_TYPE_L0; - } - } - break; - case SKIP_TYPE_MPEG: - for(mb_y=0; mb_y<s->mb_height; mb_y++){ - for(mb_x=0; mb_x<s->mb_width; mb_x++){ - mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0; - } - } - break; - case SKIP_TYPE_ROW: - for(mb_y=0; mb_y<s->mb_height; mb_y++){ - if(get_bits1(&s->gb)){ - for(mb_x=0; mb_x<s->mb_width; mb_x++){ - mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0; - } - }else{ - for(mb_x=0; mb_x<s->mb_width; mb_x++){ - mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0; - } - } - } - break; - case SKIP_TYPE_COL: - for(mb_x=0; mb_x<s->mb_width; mb_x++){ - if(get_bits1(&s->gb)){ - for(mb_y=0; mb_y<s->mb_height; mb_y++){ - mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0; - } - }else{ - for(mb_y=0; mb_y<s->mb_height; mb_y++){ - mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0; - } - } - } - break; - } -} - -static int decode_ext_header(Wmv2Context *w){ - MpegEncContext * const s= &w->s; - GetBitContext gb; - int fps; - int code; - - if(s->avctx->extradata_size<4) return -1; - - init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8); - - fps = get_bits(&gb, 5); - s->bit_rate = get_bits(&gb, 11)*1024; - w->mspel_bit = get_bits1(&gb); - s->loop_filter = get_bits1(&gb); - w->abt_flag = get_bits1(&gb); - w->j_type_bit = get_bits1(&gb); - w->top_left_mv_flag= get_bits1(&gb); - w->per_mb_rl_bit = get_bits1(&gb); - code = get_bits(&gb, 3); - - if(code==0) return -1; - - s->slice_height = s->mb_height / code; - - if(s->avctx->debug&FF_DEBUG_PICT_INFO){ - av_log(s->avctx, AV_LOG_DEBUG, "fps:%d, br:%d, qpbit:%d, abt_flag:%d, j_type_bit:%d, tl_mv_flag:%d, mbrl_bit:%d, code:%d, loop_filter:%d, slices:%d\n", - fps, s->bit_rate, w->mspel_bit, w->abt_flag, w->j_type_bit, w->top_left_mv_flag, w->per_mb_rl_bit, code, s->loop_filter, - code); - } - return 0; -} - -int ff_wmv2_decode_picture_header(MpegEncContext * s) -{ - Wmv2Context * const w= (Wmv2Context*)s; - int code; - -#if 0 -{ -int i; -for(i=0; i<s->gb.size*8; i++) - printf("%d", get_bits1(&s->gb)); -// get_bits1(&s->gb); -printf("END\n"); -return -1; -} -#endif - if(s->picture_number==0) - decode_ext_header(w); - - s->pict_type = get_bits1(&s->gb) + 1; - if(s->pict_type == I_TYPE){ - code = get_bits(&s->gb, 7); - av_log(s->avctx, AV_LOG_DEBUG, "I7:%X/\n", code); - } - s->chroma_qscale= s->qscale = get_bits(&s->gb, 5); - if(s->qscale < 0) - return -1; - - return 0; -} - -int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s) -{ - Wmv2Context * const w= (Wmv2Context*)s; - - if (s->pict_type == I_TYPE) { - if(w->j_type_bit) w->j_type= get_bits1(&s->gb); - else w->j_type= 0; //FIXME check - - if(!w->j_type){ - if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb); - else s->per_mb_rl_table= 0; - - if(!s->per_mb_rl_table){ - s->rl_chroma_table_index = decode012(&s->gb); - s->rl_table_index = decode012(&s->gb); - } - - s->dc_table_index = get_bits1(&s->gb); - } - s->inter_intra_pred= 0; - s->no_rounding = 1; - if(s->avctx->debug&FF_DEBUG_PICT_INFO){ - av_log(s->avctx, AV_LOG_DEBUG, "qscale:%d rlc:%d rl:%d dc:%d mbrl:%d j_type:%d \n", - s->qscale, - s->rl_chroma_table_index, - s->rl_table_index, - s->dc_table_index, - s->per_mb_rl_table, - w->j_type); - } - }else{ - int cbp_index; - w->j_type=0; - - parse_mb_skip(w); - cbp_index= decode012(&s->gb); - if(s->qscale <= 10){ - int map[3]= {0,2,1}; - w->cbp_table_index= map[cbp_index]; - }else if(s->qscale <= 20){ - int map[3]= {1,0,2}; - w->cbp_table_index= map[cbp_index]; - }else{ - int map[3]= {2,1,0}; - w->cbp_table_index= map[cbp_index]; - } - - if(w->mspel_bit) s->mspel= get_bits1(&s->gb); - else s->mspel= 0; //FIXME check - - if(w->abt_flag){ - w->per_mb_abt= get_bits1(&s->gb)^1; - if(!w->per_mb_abt){ - w->abt_type= decode012(&s->gb); - } - } - - if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb); - else s->per_mb_rl_table= 0; - - if(!s->per_mb_rl_table){ - s->rl_table_index = decode012(&s->gb); - s->rl_chroma_table_index = s->rl_table_index; - } - - s->dc_table_index = get_bits1(&s->gb); - s->mv_table_index = get_bits1(&s->gb); - - s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE); - s->no_rounding ^= 1; - - if(s->avctx->debug&FF_DEBUG_PICT_INFO){ - av_log(s->avctx, AV_LOG_DEBUG, "rl:%d rlc:%d dc:%d mv:%d mbrl:%d qp:%d mspel:%d per_mb_abt:%d abt_type:%d cbp:%d ii:%d\n", - s->rl_table_index, - s->rl_chroma_table_index, - s->dc_table_index, - s->mv_table_index, - s->per_mb_rl_table, - s->qscale, - s->mspel, - w->per_mb_abt, - w->abt_type, - w->cbp_table_index, - s->inter_intra_pred); - } - } - s->esc3_level_length= 0; - s->esc3_run_length= 0; - -s->picture_number++; //FIXME ? - - - if(w->j_type){ - ff_intrax8_decode_picture(&w->x8, 2*s->qscale, (s->qscale-1)|1 ); - return 1; - } - - return 0; -} - -static inline int wmv2_decode_motion(Wmv2Context *w, int *mx_ptr, int *my_ptr){ - MpegEncContext * const s= &w->s; - int ret; - - ret= ff_msmpeg4_decode_motion(s, mx_ptr, my_ptr); - - if(ret<0) return -1; - - if((((*mx_ptr)|(*my_ptr)) & 1) && s->mspel) - w->hshift= get_bits1(&s->gb); - else - w->hshift= 0; - -//printf("%d %d ", *mx_ptr, *my_ptr); - - return 0; -} - -static int16_t *wmv2_pred_motion(Wmv2Context *w, int *px, int *py){ - MpegEncContext * const s= &w->s; - int xy, wrap, diff, type; - int16_t *A, *B, *C, *mot_val; - - wrap = s->b8_stride; - xy = s->block_index[0]; - - mot_val = s->current_picture.motion_val[0][xy]; - - A = s->current_picture.motion_val[0][xy - 1]; - B = s->current_picture.motion_val[0][xy - wrap]; - C = s->current_picture.motion_val[0][xy + 2 - wrap]; - - if(s->mb_x && !s->first_slice_line && !s->mspel && w->top_left_mv_flag) - diff= FFMAX(FFABS(A[0] - B[0]), FFABS(A[1] - B[1])); - else - diff=0; - - if(diff >= 8) - type= get_bits1(&s->gb); - else - type= 2; - - if(type == 0){ - *px= A[0]; - *py= A[1]; - }else if(type == 1){ - *px= B[0]; - *py= B[1]; - }else{ - /* special case for first (slice) line */ - if (s->first_slice_line) { - *px = A[0]; - *py = A[1]; - } else { - *px = mid_pred(A[0], B[0], C[0]); - *py = mid_pred(A[1], B[1], C[1]); - } - } - - return mot_val; -} - -static inline int wmv2_decode_inter_block(Wmv2Context *w, DCTELEM *block, int n, int cbp){ - MpegEncContext * const s= &w->s; - static const int sub_cbp_table[3]= {2,3,1}; - int sub_cbp; - - if(!cbp){ - s->block_last_index[n] = -1; - - return 0; - } - - if(w->per_block_abt) - w->abt_type= decode012(&s->gb); -#if 0 - if(w->per_block_abt) - printf("B%d", w->abt_type); -#endif - w->abt_type_table[n]= w->abt_type; - - if(w->abt_type){ -// const uint8_t *scantable= w->abt_scantable[w->abt_type-1].permutated; - const uint8_t *scantable= w->abt_scantable[w->abt_type-1].scantable; -// const uint8_t *scantable= w->abt_type-1 ? w->abt_scantable[1].permutated : w->abt_scantable[0].scantable; - - sub_cbp= sub_cbp_table[ decode012(&s->gb) ]; -// printf("S%d", sub_cbp); - - if(sub_cbp&1){ - if (ff_msmpeg4_decode_block(s, block, n, 1, scantable) < 0) - return -1; - } - - if(sub_cbp&2){ - if (ff_msmpeg4_decode_block(s, w->abt_block2[n], n, 1, scantable) < 0) - return -1; - } - s->block_last_index[n] = 63; - - return 0; - }else{ - return ff_msmpeg4_decode_block(s, block, n, 1, s->inter_scantable.permutated); - } -} - static void wmv2_add_block(Wmv2Context *w, DCTELEM *block1, uint8_t *dst, int stride, int n){ MpegEncContext * const s= &w->s; @@ -713,159 +157,3 @@ void ff_mspel_motion(MpegEncContext *s, } pix_op[1][dxy](dest_cr, ptr, uvlinesize, h >> 1); } - - -int ff_wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64]) -{ - Wmv2Context * const w= (Wmv2Context*)s; - int cbp, code, i; - uint8_t *coded_val; - - if(w->j_type) return 0; - - if (s->pict_type == P_TYPE) { - if(IS_SKIP(s->current_picture.mb_type[s->mb_y * s->mb_stride + s->mb_x])){ - /* skip mb */ - s->mb_intra = 0; - for(i=0;i<6;i++) - s->block_last_index[i] = -1; - s->mv_dir = MV_DIR_FORWARD; - s->mv_type = MV_TYPE_16X16; - s->mv[0][0][0] = 0; - s->mv[0][0][1] = 0; - s->mb_skipped = 1; - w->hshift=0; - return 0; - } - - code = get_vlc2(&s->gb, ff_mb_non_intra_vlc[w->cbp_table_index].table, MB_NON_INTRA_VLC_BITS, 3); - if (code < 0) - return -1; - s->mb_intra = (~code & 0x40) >> 6; - - cbp = code & 0x3f; - } else { - s->mb_intra = 1; - code = get_vlc2(&s->gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2); - if (code < 0){ - av_log(s->avctx, AV_LOG_ERROR, "II-cbp illegal at %d %d\n", s->mb_x, s->mb_y); - return -1; - } - /* predict coded block pattern */ - cbp = 0; - for(i=0;i<6;i++) { - int val = ((code >> (5 - i)) & 1); - if (i < 4) { - int pred = ff_msmpeg4_coded_block_pred(s, i, &coded_val); - val = val ^ pred; - *coded_val = val; - } - cbp |= val << (5 - i); - } - } - - if (!s->mb_intra) { - int mx, my; -//printf("P at %d %d\n", s->mb_x, s->mb_y); - wmv2_pred_motion(w, &mx, &my); - - if(cbp){ - s->dsp.clear_blocks(s->block[0]); - if(s->per_mb_rl_table){ - s->rl_table_index = decode012(&s->gb); - s->rl_chroma_table_index = s->rl_table_index; - } - - if(w->abt_flag && w->per_mb_abt){ - w->per_block_abt= get_bits1(&s->gb); - if(!w->per_block_abt) - w->abt_type= decode012(&s->gb); - }else - w->per_block_abt=0; - } - - if (wmv2_decode_motion(w, &mx, &my) < 0) - return -1; - - s->mv_dir = MV_DIR_FORWARD; - s->mv_type = MV_TYPE_16X16; - s->mv[0][0][0] = mx; - s->mv[0][0][1] = my; - - for (i = 0; i < 6; i++) { - if (wmv2_decode_inter_block(w, block[i], i, (cbp >> (5 - i)) & 1) < 0) - { - av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding inter block: %d x %d (%d)\n", s->mb_x, s->mb_y, i); - return -1; - } - } - } else { -//if(s->pict_type==P_TYPE) -// printf("%d%d ", s->inter_intra_pred, cbp); -//printf("I at %d %d %d %06X\n", s->mb_x, s->mb_y, ((cbp&3)? 1 : 0) +((cbp&0x3C)? 2 : 0), show_bits(&s->gb, 24)); - s->ac_pred = get_bits1(&s->gb); - if(s->inter_intra_pred){ - s->h263_aic_dir= get_vlc2(&s->gb, ff_inter_intra_vlc.table, INTER_INTRA_VLC_BITS, 1); -// printf("%d%d %d %d/", s->ac_pred, s->h263_aic_dir, s->mb_x, s->mb_y); - } - if(s->per_mb_rl_table && cbp){ - s->rl_table_index = decode012(&s->gb); - s->rl_chroma_table_index = s->rl_table_index; - } - - s->dsp.clear_blocks(s->block[0]); - for (i = 0; i < 6; i++) { - if (ff_msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0) - { - av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding intra block: %d x %d (%d)\n", s->mb_x, s->mb_y, i); - return -1; - } - } - } - - return 0; -} - -static int wmv2_decode_init(AVCodecContext *avctx){ - Wmv2Context * const w= avctx->priv_data; - - if(avctx->idct_algo==FF_IDCT_AUTO){ - avctx->idct_algo=FF_IDCT_WMV2; - } - - if(ff_h263_decode_init(avctx) < 0) - return -1; - - wmv2_common_init(w); - - ff_intrax8_common_init(&w->x8,&w->s); - - return 0; -} - -#ifdef CONFIG_WMV2_DECODER -AVCodec wmv2_decoder = { - "wmv2", - CODEC_TYPE_VIDEO, - CODEC_ID_WMV2, - sizeof(Wmv2Context), - wmv2_decode_init, - NULL, - ff_h263_decode_end, - ff_h263_decode_frame, - CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1, -}; -#endif - -#ifdef CONFIG_WMV2_ENCODER -AVCodec wmv2_encoder = { - "wmv2", - CODEC_TYPE_VIDEO, - CODEC_ID_WMV2, - sizeof(Wmv2Context), - wmv2_encode_init, - MPV_encode_picture, - MPV_encode_end, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1}, -}; -#endif diff --git a/libavcodec/wmv2.h b/libavcodec/wmv2.h new file mode 100644 index 0000000000..2fd842e6a2 --- /dev/null +++ b/libavcodec/wmv2.h @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2002 The FFmpeg Project. + * + * 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 + */ + +#ifndef FFMPEG_WMV2_H +#define FFMPEG_WMV2_H + +#include "avcodec.h" +#include "dsputil.h" +#include "mpegvideo.h" +#include "intrax8.h" + +#define SKIP_TYPE_NONE 0 +#define SKIP_TYPE_MPEG 1 +#define SKIP_TYPE_ROW 2 +#define SKIP_TYPE_COL 3 + + +typedef struct Wmv2Context{ + MpegEncContext s; + IntraX8Context x8; + int j_type_bit; + int j_type; + int abt_flag; + int abt_type; + int abt_type_table[6]; + int per_mb_abt; + int per_block_abt; + int mspel_bit; + int cbp_table_index; + int top_left_mv_flag; + int per_mb_rl_bit; + int skip_type; + int hshift; + + ScanTable abt_scantable[2]; + DECLARE_ALIGNED_8(DCTELEM, abt_block2[6][64]); +}Wmv2Context; + +void ff_wmv2_common_init(Wmv2Context * w); + +#endif /* FFMPEG_WMV2_H */ diff --git a/libavcodec/wmv2dec.c b/libavcodec/wmv2dec.c new file mode 100644 index 0000000000..181e1c6d4b --- /dev/null +++ b/libavcodec/wmv2dec.c @@ -0,0 +1,487 @@ +/* + * Copyright (c) 2002 The FFmpeg Project. + * + * 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 + */ + +#include "avcodec.h" +#include "dsputil.h" +#include "mpegvideo.h" +#include "msmpeg4.h" +#include "msmpeg4data.h" +#include "intrax8.h" +#include "wmv2.h" + + +static void parse_mb_skip(Wmv2Context * w){ + int mb_x, mb_y; + MpegEncContext * const s= &w->s; + uint32_t * const mb_type= s->current_picture_ptr->mb_type; + + w->skip_type= get_bits(&s->gb, 2); + switch(w->skip_type){ + case SKIP_TYPE_NONE: + for(mb_y=0; mb_y<s->mb_height; mb_y++){ + for(mb_x=0; mb_x<s->mb_width; mb_x++){ + mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_16x16 | MB_TYPE_L0; + } + } + break; + case SKIP_TYPE_MPEG: + for(mb_y=0; mb_y<s->mb_height; mb_y++){ + for(mb_x=0; mb_x<s->mb_width; mb_x++){ + mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0; + } + } + break; + case SKIP_TYPE_ROW: + for(mb_y=0; mb_y<s->mb_height; mb_y++){ + if(get_bits1(&s->gb)){ + for(mb_x=0; mb_x<s->mb_width; mb_x++){ + mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0; + } + }else{ + for(mb_x=0; mb_x<s->mb_width; mb_x++){ + mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0; + } + } + } + break; + case SKIP_TYPE_COL: + for(mb_x=0; mb_x<s->mb_width; mb_x++){ + if(get_bits1(&s->gb)){ + for(mb_y=0; mb_y<s->mb_height; mb_y++){ + mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0; + } + }else{ + for(mb_y=0; mb_y<s->mb_height; mb_y++){ + mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0; + } + } + } + break; + } +} + +static int decode_ext_header(Wmv2Context *w){ + MpegEncContext * const s= &w->s; + GetBitContext gb; + int fps; + int code; + + if(s->avctx->extradata_size<4) return -1; + + init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8); + + fps = get_bits(&gb, 5); + s->bit_rate = get_bits(&gb, 11)*1024; + w->mspel_bit = get_bits1(&gb); + s->loop_filter = get_bits1(&gb); + w->abt_flag = get_bits1(&gb); + w->j_type_bit = get_bits1(&gb); + w->top_left_mv_flag= get_bits1(&gb); + w->per_mb_rl_bit = get_bits1(&gb); + code = get_bits(&gb, 3); + + if(code==0) return -1; + + s->slice_height = s->mb_height / code; + + if(s->avctx->debug&FF_DEBUG_PICT_INFO){ + av_log(s->avctx, AV_LOG_DEBUG, "fps:%d, br:%d, qpbit:%d, abt_flag:%d, j_type_bit:%d, tl_mv_flag:%d, mbrl_bit:%d, code:%d, loop_filter:%d, slices:%d\n", + fps, s->bit_rate, w->mspel_bit, w->abt_flag, w->j_type_bit, w->top_left_mv_flag, w->per_mb_rl_bit, code, s->loop_filter, + code); + } + return 0; +} + +int ff_wmv2_decode_picture_header(MpegEncContext * s) +{ + Wmv2Context * const w= (Wmv2Context*)s; + int code; + +#if 0 +{ +int i; +for(i=0; i<s->gb.size*8; i++) + printf("%d", get_bits1(&s->gb)); +// get_bits1(&s->gb); +printf("END\n"); +return -1; +} +#endif + if(s->picture_number==0) + decode_ext_header(w); + + s->pict_type = get_bits1(&s->gb) + 1; + if(s->pict_type == I_TYPE){ + code = get_bits(&s->gb, 7); + av_log(s->avctx, AV_LOG_DEBUG, "I7:%X/\n", code); + } + s->chroma_qscale= s->qscale = get_bits(&s->gb, 5); + if(s->qscale < 0) + return -1; + + return 0; +} + +int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s) +{ + Wmv2Context * const w= (Wmv2Context*)s; + + if (s->pict_type == I_TYPE) { + if(w->j_type_bit) w->j_type= get_bits1(&s->gb); + else w->j_type= 0; //FIXME check + + if(!w->j_type){ + if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb); + else s->per_mb_rl_table= 0; + + if(!s->per_mb_rl_table){ + s->rl_chroma_table_index = decode012(&s->gb); + s->rl_table_index = decode012(&s->gb); + } + + s->dc_table_index = get_bits1(&s->gb); + } + s->inter_intra_pred= 0; + s->no_rounding = 1; + if(s->avctx->debug&FF_DEBUG_PICT_INFO){ + av_log(s->avctx, AV_LOG_DEBUG, "qscale:%d rlc:%d rl:%d dc:%d mbrl:%d j_type:%d \n", + s->qscale, + s->rl_chroma_table_index, + s->rl_table_index, + s->dc_table_index, + s->per_mb_rl_table, + w->j_type); + } + }else{ + int cbp_index; + w->j_type=0; + + parse_mb_skip(w); + cbp_index= decode012(&s->gb); + if(s->qscale <= 10){ + int map[3]= {0,2,1}; + w->cbp_table_index= map[cbp_index]; + }else if(s->qscale <= 20){ + int map[3]= {1,0,2}; + w->cbp_table_index= map[cbp_index]; + }else{ + int map[3]= {2,1,0}; + w->cbp_table_index= map[cbp_index]; + } + + if(w->mspel_bit) s->mspel= get_bits1(&s->gb); + else s->mspel= 0; //FIXME check + + if(w->abt_flag){ + w->per_mb_abt= get_bits1(&s->gb)^1; + if(!w->per_mb_abt){ + w->abt_type= decode012(&s->gb); + } + } + + if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb); + else s->per_mb_rl_table= 0; + + if(!s->per_mb_rl_table){ + s->rl_table_index = decode012(&s->gb); + s->rl_chroma_table_index = s->rl_table_index; + } + + s->dc_table_index = get_bits1(&s->gb); + s->mv_table_index = get_bits1(&s->gb); + + s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE); + s->no_rounding ^= 1; + + if(s->avctx->debug&FF_DEBUG_PICT_INFO){ + av_log(s->avctx, AV_LOG_DEBUG, "rl:%d rlc:%d dc:%d mv:%d mbrl:%d qp:%d mspel:%d per_mb_abt:%d abt_type:%d cbp:%d ii:%d\n", + s->rl_table_index, + s->rl_chroma_table_index, + s->dc_table_index, + s->mv_table_index, + s->per_mb_rl_table, + s->qscale, + s->mspel, + w->per_mb_abt, + w->abt_type, + w->cbp_table_index, + s->inter_intra_pred); + } + } + s->esc3_level_length= 0; + s->esc3_run_length= 0; + +s->picture_number++; //FIXME ? + + + if(w->j_type){ + ff_intrax8_decode_picture(&w->x8, 2*s->qscale, (s->qscale-1)|1 ); + return 1; + } + + return 0; +} + +static inline int wmv2_decode_motion(Wmv2Context *w, int *mx_ptr, int *my_ptr){ + MpegEncContext * const s= &w->s; + int ret; + + ret= ff_msmpeg4_decode_motion(s, mx_ptr, my_ptr); + + if(ret<0) return -1; + + if((((*mx_ptr)|(*my_ptr)) & 1) && s->mspel) + w->hshift= get_bits1(&s->gb); + else + w->hshift= 0; + +//printf("%d %d ", *mx_ptr, *my_ptr); + + return 0; +} + +static int16_t *wmv2_pred_motion(Wmv2Context *w, int *px, int *py){ + MpegEncContext * const s= &w->s; + int xy, wrap, diff, type; + int16_t *A, *B, *C, *mot_val; + + wrap = s->b8_stride; + xy = s->block_index[0]; + + mot_val = s->current_picture.motion_val[0][xy]; + + A = s->current_picture.motion_val[0][xy - 1]; + B = s->current_picture.motion_val[0][xy - wrap]; + C = s->current_picture.motion_val[0][xy + 2 - wrap]; + + if(s->mb_x && !s->first_slice_line && !s->mspel && w->top_left_mv_flag) + diff= FFMAX(FFABS(A[0] - B[0]), FFABS(A[1] - B[1])); + else + diff=0; + + if(diff >= 8) + type= get_bits1(&s->gb); + else + type= 2; + + if(type == 0){ + *px= A[0]; + *py= A[1]; + }else if(type == 1){ + *px= B[0]; + *py= B[1]; + }else{ + /* special case for first (slice) line */ + if (s->first_slice_line) { + *px = A[0]; + *py = A[1]; + } else { + *px = mid_pred(A[0], B[0], C[0]); + *py = mid_pred(A[1], B[1], C[1]); + } + } + + return mot_val; +} + +static inline int wmv2_decode_inter_block(Wmv2Context *w, DCTELEM *block, int n, int cbp){ + MpegEncContext * const s= &w->s; + static const int sub_cbp_table[3]= {2,3,1}; + int sub_cbp; + + if(!cbp){ + s->block_last_index[n] = -1; + + return 0; + } + + if(w->per_block_abt) + w->abt_type= decode012(&s->gb); +#if 0 + if(w->per_block_abt) + printf("B%d", w->abt_type); +#endif + w->abt_type_table[n]= w->abt_type; + + if(w->abt_type){ +// const uint8_t *scantable= w->abt_scantable[w->abt_type-1].permutated; + const uint8_t *scantable= w->abt_scantable[w->abt_type-1].scantable; +// const uint8_t *scantable= w->abt_type-1 ? w->abt_scantable[1].permutated : w->abt_scantable[0].scantable; + + sub_cbp= sub_cbp_table[ decode012(&s->gb) ]; +// printf("S%d", sub_cbp); + + if(sub_cbp&1){ + if (ff_msmpeg4_decode_block(s, block, n, 1, scantable) < 0) + return -1; + } + + if(sub_cbp&2){ + if (ff_msmpeg4_decode_block(s, w->abt_block2[n], n, 1, scantable) < 0) + return -1; + } + s->block_last_index[n] = 63; + + return 0; + }else{ + return ff_msmpeg4_decode_block(s, block, n, 1, s->inter_scantable.permutated); + } +} + + +int ff_wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64]) +{ + Wmv2Context * const w= (Wmv2Context*)s; + int cbp, code, i; + uint8_t *coded_val; + + if(w->j_type) return 0; + + if (s->pict_type == P_TYPE) { + if(IS_SKIP(s->current_picture.mb_type[s->mb_y * s->mb_stride + s->mb_x])){ + /* skip mb */ + s->mb_intra = 0; + for(i=0;i<6;i++) + s->block_last_index[i] = -1; + s->mv_dir = MV_DIR_FORWARD; + s->mv_type = MV_TYPE_16X16; + s->mv[0][0][0] = 0; + s->mv[0][0][1] = 0; + s->mb_skipped = 1; + w->hshift=0; + return 0; + } + + code = get_vlc2(&s->gb, ff_mb_non_intra_vlc[w->cbp_table_index].table, MB_NON_INTRA_VLC_BITS, 3); + if (code < 0) + return -1; + s->mb_intra = (~code & 0x40) >> 6; + + cbp = code & 0x3f; + } else { + s->mb_intra = 1; + code = get_vlc2(&s->gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2); + if (code < 0){ + av_log(s->avctx, AV_LOG_ERROR, "II-cbp illegal at %d %d\n", s->mb_x, s->mb_y); + return -1; + } + /* predict coded block pattern */ + cbp = 0; + for(i=0;i<6;i++) { + int val = ((code >> (5 - i)) & 1); + if (i < 4) { + int pred = ff_msmpeg4_coded_block_pred(s, i, &coded_val); + val = val ^ pred; + *coded_val = val; + } + cbp |= val << (5 - i); + } + } + + if (!s->mb_intra) { + int mx, my; +//printf("P at %d %d\n", s->mb_x, s->mb_y); + wmv2_pred_motion(w, &mx, &my); + + if(cbp){ + s->dsp.clear_blocks(s->block[0]); + if(s->per_mb_rl_table){ + s->rl_table_index = decode012(&s->gb); + s->rl_chroma_table_index = s->rl_table_index; + } + + if(w->abt_flag && w->per_mb_abt){ + w->per_block_abt= get_bits1(&s->gb); + if(!w->per_block_abt) + w->abt_type= decode012(&s->gb); + }else + w->per_block_abt=0; + } + + if (wmv2_decode_motion(w, &mx, &my) < 0) + return -1; + + s->mv_dir = MV_DIR_FORWARD; + s->mv_type = MV_TYPE_16X16; + s->mv[0][0][0] = mx; + s->mv[0][0][1] = my; + + for (i = 0; i < 6; i++) { + if (wmv2_decode_inter_block(w, block[i], i, (cbp >> (5 - i)) & 1) < 0) + { + av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding inter block: %d x %d (%d)\n", s->mb_x, s->mb_y, i); + return -1; + } + } + } else { +//if(s->pict_type==P_TYPE) +// printf("%d%d ", s->inter_intra_pred, cbp); +//printf("I at %d %d %d %06X\n", s->mb_x, s->mb_y, ((cbp&3)? 1 : 0) +((cbp&0x3C)? 2 : 0), show_bits(&s->gb, 24)); + s->ac_pred = get_bits1(&s->gb); + if(s->inter_intra_pred){ + s->h263_aic_dir= get_vlc2(&s->gb, ff_inter_intra_vlc.table, INTER_INTRA_VLC_BITS, 1); +// printf("%d%d %d %d/", s->ac_pred, s->h263_aic_dir, s->mb_x, s->mb_y); + } + if(s->per_mb_rl_table && cbp){ + s->rl_table_index = decode012(&s->gb); + s->rl_chroma_table_index = s->rl_table_index; + } + + s->dsp.clear_blocks(s->block[0]); + for (i = 0; i < 6; i++) { + if (ff_msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0) + { + av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding intra block: %d x %d (%d)\n", s->mb_x, s->mb_y, i); + return -1; + } + } + } + + return 0; +} + +static int wmv2_decode_init(AVCodecContext *avctx){ + Wmv2Context * const w= avctx->priv_data; + + if(avctx->idct_algo==FF_IDCT_AUTO){ + avctx->idct_algo=FF_IDCT_WMV2; + } + + if(ff_h263_decode_init(avctx) < 0) + return -1; + + ff_wmv2_common_init(w); + + ff_intrax8_common_init(&w->x8,&w->s); + + return 0; +} + +AVCodec wmv2_decoder = { + "wmv2", + CODEC_TYPE_VIDEO, + CODEC_ID_WMV2, + sizeof(Wmv2Context), + wmv2_decode_init, + NULL, + ff_h263_decode_end, + ff_h263_decode_frame, + CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1, +}; diff --git a/libavcodec/wmv2enc.c b/libavcodec/wmv2enc.c new file mode 100644 index 0000000000..641f0dc854 --- /dev/null +++ b/libavcodec/wmv2enc.c @@ -0,0 +1,240 @@ +/* + * Copyright (c) 2002 The FFmpeg Project. + * + * 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 + */ + +#include "avcodec.h" +#include "dsputil.h" +#include "mpegvideo.h" +#include "msmpeg4.h" +#include "msmpeg4data.h" +#include "wmv2.h" + + +static int encode_ext_header(Wmv2Context *w){ + MpegEncContext * const s= &w->s; + PutBitContext pb; + int code; + + init_put_bits(&pb, s->avctx->extradata, s->avctx->extradata_size); + + put_bits(&pb, 5, s->avctx->time_base.den / s->avctx->time_base.num); //yes 29.97 -> 29 + put_bits(&pb, 11, FFMIN(s->bit_rate/1024, 2047)); + + put_bits(&pb, 1, w->mspel_bit=1); + put_bits(&pb, 1, s->loop_filter); + put_bits(&pb, 1, w->abt_flag=1); + put_bits(&pb, 1, w->j_type_bit=1); + put_bits(&pb, 1, w->top_left_mv_flag=0); + put_bits(&pb, 1, w->per_mb_rl_bit=1); + put_bits(&pb, 3, code=1); + + flush_put_bits(&pb); + + s->slice_height = s->mb_height / code; + + return 0; +} + +static int wmv2_encode_init(AVCodecContext *avctx){ + Wmv2Context * const w= avctx->priv_data; + + if(MPV_encode_init(avctx) < 0) + return -1; + + ff_wmv2_common_init(w); + + avctx->extradata_size= 4; + avctx->extradata= av_mallocz(avctx->extradata_size + 10); + encode_ext_header(w); + + return 0; +} + +#if 0 /* unused, remove? */ +static int wmv2_encode_end(AVCodecContext *avctx){ + + if(MPV_encode_end(avctx) < 0) + return -1; + + avctx->extradata_size= 0; + av_freep(&avctx->extradata); + + return 0; +} +#endif + +int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number) +{ + Wmv2Context * const w= (Wmv2Context*)s; + + put_bits(&s->pb, 1, s->pict_type - 1); + if(s->pict_type == I_TYPE){ + put_bits(&s->pb, 7, 0); + } + put_bits(&s->pb, 5, s->qscale); + + s->dc_table_index = 1; + s->mv_table_index = 1; /* only if P frame */ +// s->use_skip_mb_code = 1; /* only if P frame */ + s->per_mb_rl_table = 0; + s->mspel= 0; + w->per_mb_abt=0; + w->abt_type=0; + w->j_type=0; + + assert(s->flipflop_rounding); + + if (s->pict_type == I_TYPE) { + assert(s->no_rounding==1); + if(w->j_type_bit) put_bits(&s->pb, 1, w->j_type); + + if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table); + + if(!s->per_mb_rl_table){ + ff_msmpeg4_code012(&s->pb, s->rl_chroma_table_index); + ff_msmpeg4_code012(&s->pb, s->rl_table_index); + } + + put_bits(&s->pb, 1, s->dc_table_index); + + s->inter_intra_pred= 0; + }else{ + int cbp_index; + + put_bits(&s->pb, 2, SKIP_TYPE_NONE); + + ff_msmpeg4_code012(&s->pb, cbp_index=0); + if(s->qscale <= 10){ + int map[3]= {0,2,1}; + w->cbp_table_index= map[cbp_index]; + }else if(s->qscale <= 20){ + int map[3]= {1,0,2}; + w->cbp_table_index= map[cbp_index]; + }else{ + int map[3]= {2,1,0}; + w->cbp_table_index= map[cbp_index]; + } + + if(w->mspel_bit) put_bits(&s->pb, 1, s->mspel); + + if(w->abt_flag){ + put_bits(&s->pb, 1, w->per_mb_abt^1); + if(!w->per_mb_abt){ + ff_msmpeg4_code012(&s->pb, w->abt_type); + } + } + + if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table); + + if(!s->per_mb_rl_table){ + ff_msmpeg4_code012(&s->pb, s->rl_table_index); + s->rl_chroma_table_index = s->rl_table_index; + } + put_bits(&s->pb, 1, s->dc_table_index); + put_bits(&s->pb, 1, s->mv_table_index); + + s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE); + } + s->esc3_level_length= 0; + s->esc3_run_length= 0; + + return 0; +} + +/* Nearly identical to wmv1 but that is just because we do not use the + * useless M$ crap features. It is duplicated here in case someone wants + * to add support for these crap features. */ +void ff_wmv2_encode_mb(MpegEncContext * s, + DCTELEM block[6][64], + int motion_x, int motion_y) +{ + Wmv2Context * const w= (Wmv2Context*)s; + int cbp, coded_cbp, i; + int pred_x, pred_y; + uint8_t *coded_block; + + ff_msmpeg4_handle_slices(s); + + if (!s->mb_intra) { + /* compute cbp */ + cbp = 0; + for (i = 0; i < 6; i++) { + if (s->block_last_index[i] >= 0) + cbp |= 1 << (5 - i); + } + + put_bits(&s->pb, + wmv2_inter_table[w->cbp_table_index][cbp + 64][1], + wmv2_inter_table[w->cbp_table_index][cbp + 64][0]); + + /* motion vector */ + h263_pred_motion(s, 0, 0, &pred_x, &pred_y); + ff_msmpeg4_encode_motion(s, motion_x - pred_x, + motion_y - pred_y); + } else { + /* compute cbp */ + cbp = 0; + coded_cbp = 0; + for (i = 0; i < 6; i++) { + int val, pred; + val = (s->block_last_index[i] >= 1); + cbp |= val << (5 - i); + if (i < 4) { + /* predict value for close blocks only for luma */ + pred = ff_msmpeg4_coded_block_pred(s, i, &coded_block); + *coded_block = val; + val = val ^ pred; + } + coded_cbp |= val << (5 - i); + } +#if 0 + if (coded_cbp) + printf("cbp=%x %x\n", cbp, coded_cbp); +#endif + + if (s->pict_type == I_TYPE) { + put_bits(&s->pb, + ff_msmp4_mb_i_table[coded_cbp][1], ff_msmp4_mb_i_table[coded_cbp][0]); + } else { + put_bits(&s->pb, + wmv2_inter_table[w->cbp_table_index][cbp][1], + wmv2_inter_table[w->cbp_table_index][cbp][0]); + } + put_bits(&s->pb, 1, 0); /* no AC prediction yet */ + if(s->inter_intra_pred){ + s->h263_aic_dir=0; + put_bits(&s->pb, table_inter_intra[s->h263_aic_dir][1], table_inter_intra[s->h263_aic_dir][0]); + } + } + + for (i = 0; i < 6; i++) { + ff_msmpeg4_encode_block(s, block[i], i); + } +} + +AVCodec wmv2_encoder = { + "wmv2", + CODEC_TYPE_VIDEO, + CODEC_ID_WMV2, + sizeof(Wmv2Context), + wmv2_encode_init, + MPV_encode_picture, + MPV_encode_end, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1}, +}; |