X-Git-Url: http://git.ffmpeg.org/gitweb/ffmpeg.git/blobdiff_plain/58c42af722cebecd86e340dc3ed9ec44b1fe4a55..dc6ea00cd2b91b591e6726e5bf1d5e03a4a9bdd0:/libavcodec/mpeg4video.h diff --git a/libavcodec/mpeg4video.h b/libavcodec/mpeg4video.h index ba67c21..c22fbfd 100644 --- a/libavcodec/mpeg4video.h +++ b/libavcodec/mpeg4video.h @@ -24,6 +24,7 @@ #define AVCODEC_MPEG4VIDEO_H #include + #include "get_bits.h" #include "mpegvideo.h" #include "rl.h" @@ -34,13 +35,13 @@ #define BIN_ONLY_SHAPE 2 #define GRAY_SHAPE 3 -#define SIMPLE_VO_TYPE 1 -#define CORE_VO_TYPE 3 -#define MAIN_VO_TYPE 4 -#define NBIT_VO_TYPE 5 -#define ARTS_VO_TYPE 10 -#define ACE_VO_TYPE 12 -#define ADV_SIMPLE_VO_TYPE 17 +#define SIMPLE_VO_TYPE 1 +#define CORE_VO_TYPE 3 +#define MAIN_VO_TYPE 4 +#define NBIT_VO_TYPE 5 +#define ARTS_VO_TYPE 10 +#define ACE_VO_TYPE 12 +#define ADV_SIMPLE_VO_TYPE 17 // aspect_ratio_info #define EXTENDED_PAR 15 @@ -63,14 +64,17 @@ extern const uint8_t ff_mpeg4_DCtab_lum[13][2]; extern const uint8_t ff_mpeg4_DCtab_chrom[13][2]; extern const uint16_t ff_mpeg4_intra_vlc[103][2]; +extern const int8_t ff_mpeg4_intra_level[102]; +extern const int8_t ff_mpeg4_intra_run[102]; + extern RLTable ff_mpeg4_rl_intra; /* Note this is identical to the intra rvlc except that it is reordered. */ -extern RLTable rvlc_rl_inter; -extern RLTable rvlc_rl_intra; +extern RLTable ff_rvlc_rl_inter; +extern RLTable ff_rvlc_rl_intra; -extern const uint16_t sprite_trajectory_tab[15][2]; -extern const uint8_t mb_type_b_tab[4][2]; +extern const uint16_t ff_sprite_trajectory_tab[15][2]; +extern const uint8_t ff_mb_type_b_tab[4][2]; /* these matrixes will be permuted for the idct */ extern const int16_t ff_mpeg4_default_intra_matrix[64]; @@ -80,26 +84,26 @@ extern const uint8_t ff_mpeg4_y_dc_scale_table[32]; extern const uint8_t ff_mpeg4_c_dc_scale_table[32]; extern const uint16_t ff_mpeg4_resync_prefix[8]; -extern const uint8_t mpeg4_dc_threshold[8]; +extern const uint8_t ff_mpeg4_dc_threshold[8]; -void mpeg4_encode_mb(MpegEncContext *s, - DCTELEM block[6][64], - int motion_x, int motion_y); -void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n, - int dir); -void ff_set_mpeg4_time(MpegEncContext * s); -void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number); +void ff_mpeg4_encode_mb(MpegEncContext *s, + int16_t block[6][64], + int motion_x, int motion_y); +void ff_mpeg4_pred_ac(MpegEncContext *s, int16_t *block, int n, + int dir); +void ff_set_mpeg4_time(MpegEncContext *s); +void ff_mpeg4_encode_picture_header(MpegEncContext *s, int picture_number); -int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb); +int ff_mpeg4_decode_picture_header(MpegEncContext *s, GetBitContext *gb); void ff_mpeg4_encode_video_packet_header(MpegEncContext *s); void ff_mpeg4_clean_buffers(MpegEncContext *s); -void ff_mpeg4_stuffing(PutBitContext * pbc); +void ff_mpeg4_stuffing(PutBitContext *pbc); void ff_mpeg4_init_partitions(MpegEncContext *s); void ff_mpeg4_merge_partitions(MpegEncContext *s); void ff_clean_mpeg4_qscales(MpegEncContext *s); int ff_mpeg4_decode_partitions(MpegEncContext *s); int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s); -int mpeg4_decode_video_packet_header(MpegEncContext *s); +int ff_mpeg4_decode_video_packet_header(MpegEncContext *s); void ff_mpeg4_init_direct_mv(MpegEncContext *s); /** @@ -108,8 +112,7 @@ void ff_mpeg4_init_direct_mv(MpegEncContext *s); */ int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my); -extern uint8_t ff_mpeg4_static_rl_table_store[3][2][2*MAX_RUN + MAX_LEVEL + 3]; - +extern uint8_t ff_mpeg4_static_rl_table_store[3][2][2 * MAX_RUN + MAX_LEVEL + 3]; #if 0 //3IV1 is quite rare and it slows things down a tiny bit #define IS_3IV1 s->codec_tag == AV_RL32("3IV1") @@ -117,7 +120,6 @@ extern uint8_t ff_mpeg4_static_rl_table_store[3][2][2*MAX_RUN + MAX_LEVEL + 3]; #define IS_3IV1 0 #endif - /** * Predict the dc. * encoding quantized level -> quantized diff @@ -125,75 +127,81 @@ extern uint8_t ff_mpeg4_static_rl_table_store[3][2][2*MAX_RUN + MAX_LEVEL + 3]; * @param n block index (0-3 are luma, 4-5 are chroma) * @param dir_ptr pointer to an integer where the prediction direction will be stored */ -static inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, int level, int *dir_ptr, int encoding) +static inline int ff_mpeg4_pred_dc(MpegEncContext *s, int n, int level, + int *dir_ptr, int encoding) { int a, b, c, wrap, pred, scale, ret; int16_t *dc_val; /* find prediction */ - if (n < 4) { + if (n < 4) scale = s->y_dc_scale; - } else { + else scale = s->c_dc_scale; - } - if(IS_3IV1) - scale= 8; + if (IS_3IV1) + scale = 8; - wrap= s->block_wrap[n]; + wrap = s->block_wrap[n]; dc_val = s->dc_val[0] + s->block_index[n]; /* B C * A X */ - a = dc_val[ - 1]; - b = dc_val[ - 1 - wrap]; - c = dc_val[ - wrap]; - - /* outside slice handling (we can't do that by memset as we need the dc for error resilience) */ - if(s->first_slice_line && n!=3){ - if(n!=2) b=c= 1024; - if(n!=1 && s->mb_x == s->resync_mb_x) b=a= 1024; + a = dc_val[-1]; + b = dc_val[-1 - wrap]; + c = dc_val[-wrap]; + + /* outside slice handling (we can't do that by memset as we need the + * dc for error resilience) */ + if (s->first_slice_line && n != 3) { + if (n != 2) + b = c = 1024; + if (n != 1 && s->mb_x == s->resync_mb_x) + b = a = 1024; } - if(s->mb_x == s->resync_mb_x && s->mb_y == s->resync_mb_y+1){ - if(n==0 || n==4 || n==5) - b=1024; + if (s->mb_x == s->resync_mb_x && s->mb_y == s->resync_mb_y + 1) { + if (n == 0 || n == 4 || n == 5) + b = 1024; } if (abs(a - b) < abs(b - c)) { - pred = c; + pred = c; *dir_ptr = 1; /* top */ } else { - pred = a; + pred = a; *dir_ptr = 0; /* left */ } /* we assume pred is positive */ pred = FASTDIV((pred + (scale >> 1)), scale); - if(encoding){ + if (encoding) { ret = level - pred; - }else{ + } else { level += pred; - ret= level; - if(s->err_recognition&AV_EF_BITSTREAM){ - if(level<0){ - av_log(s->avctx, AV_LOG_ERROR, "dc<0 at %dx%d\n", s->mb_x, s->mb_y); + ret = level; + if (s->err_recognition & AV_EF_BITSTREAM) { + if (level < 0) { + av_log(s->avctx, AV_LOG_ERROR, + "dc<0 at %dx%d\n", s->mb_x, s->mb_y); return -1; } - if(level*scale > 2048 + scale){ - av_log(s->avctx, AV_LOG_ERROR, "dc overflow at %dx%d\n", s->mb_x, s->mb_y); + if (level * scale > 2048 + scale) { + av_log(s->avctx, AV_LOG_ERROR, + "dc overflow at %dx%d\n", s->mb_x, s->mb_y); return -1; } } } - level *=scale; - if(level&(~2047)){ - if(level<0) - level=0; - else if(!(s->workaround_bugs&FF_BUG_DC_CLIP)) - level=2047; + level *= scale; + if (level & (~2047)) { + if (level < 0) + level = 0; + else if (!(s->workaround_bugs & FF_BUG_DC_CLIP)) + level = 2047; } - dc_val[0]= level; + dc_val[0] = level; return ret; } + #endif /* AVCODEC_MPEG4VIDEO_H */