diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2003-11-30 17:35:35 +0300 |
---|---|---|
committer | Michael Niedermayer <michaelni@gmx.at> | 2003-11-30 17:35:35 +0300 |
commit | 68b94c354d913a9cc8b110d66d8d5faab3572025 (patch) | |
tree | fe001be77acded033a1cb532492d689e9579fed9 /libavcodec | |
parent | 3e8a5124a24719c89921cc5aa6215ff9d480ed0e (diff) |
rv20 decoder
Originally committed as revision 2543 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
-rw-r--r-- | libavcodec/allcodecs.c | 1 | ||||
-rw-r--r-- | libavcodec/avcodec.h | 3 | ||||
-rw-r--r-- | libavcodec/h263.c | 51 | ||||
-rw-r--r-- | libavcodec/h263data.h | 23 | ||||
-rw-r--r-- | libavcodec/h263dec.c | 1 | ||||
-rw-r--r-- | libavcodec/mpegvideo.h | 5 | ||||
-rw-r--r-- | libavcodec/rv10.c | 114 |
7 files changed, 169 insertions, 29 deletions
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index b7af5bed96..9d45775379 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -90,6 +90,7 @@ void avcodec_register_all(void) register_avcodec(&h263i_decoder); register_avcodec(&flv_decoder); register_avcodec(&rv10_decoder); + register_avcodec(&rv20_decoder); register_avcodec(&svq1_decoder); register_avcodec(&svq3_decoder); register_avcodec(&wmav1_decoder); diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 58a522747e..f265c33085 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -33,6 +33,7 @@ enum CodecID { CODEC_ID_MPEG2VIDEO_XVMC, CODEC_ID_H263, CODEC_ID_RV10, + CODEC_ID_RV20, CODEC_ID_MP2, CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */ CODEC_ID_VORBIS, @@ -1502,6 +1503,7 @@ extern AVCodec h263_encoder; extern AVCodec h263p_encoder; extern AVCodec flv_encoder; extern AVCodec rv10_encoder; +extern AVCodec rv20_encoder; extern AVCodec mjpeg_encoder; extern AVCodec ljpeg_encoder; extern AVCodec mpeg4_encoder; @@ -1532,6 +1534,7 @@ extern AVCodec mpeg_xvmc_decoder; extern AVCodec h263i_decoder; extern AVCodec flv_decoder; extern AVCodec rv10_decoder; +extern AVCodec rv20_decoder; extern AVCodec svq1_decoder; extern AVCodec svq3_decoder; extern AVCodec dvvideo_decoder; diff --git a/libavcodec/h263.c b/libavcodec/h263.c index 80bacc23a0..2dbebd96a0 100644 --- a/libavcodec/h263.c +++ b/libavcodec/h263.c @@ -185,7 +185,7 @@ void ff_flv_encode_picture_header(MpegEncContext * s, int picture_number) if(s->h263_aic){ s->y_dc_scale_table= - s->c_dc_scale_table= h263_aic_dc_scale_table; + s->c_dc_scale_table= ff_aic_dc_scale_table; }else{ s->y_dc_scale_table= s->c_dc_scale_table= ff_mpeg1_dc_scale_table; @@ -288,7 +288,7 @@ void h263_encode_picture_header(MpegEncContext * s, int picture_number) if(s->h263_aic){ s->y_dc_scale_table= - s->c_dc_scale_table= h263_aic_dc_scale_table; + s->c_dc_scale_table= ff_aic_dc_scale_table; }else{ s->y_dc_scale_table= s->c_dc_scale_table= ff_mpeg1_dc_scale_table; @@ -1139,11 +1139,12 @@ void h263_encode_mb(MpegEncContext * s, } } else { int li = s->h263_aic ? 0 : 1; + assert(s->mb_intra); cbp = 0; for(i=0; i<6; i++) { /* Predict DC */ - if (s->h263_aic && s->mb_intra) { + if (s->h263_aic) { int16_t level = block[i][0]; pred_dc = h263_pred_dc(s, i, &dc_ptr[i]); @@ -1286,7 +1287,7 @@ static void h263_pred_acdc(MpegEncContext * s, DCTELEM *block, int n) /* find prediction */ if (n < 4) { x = 2 * s->mb_x + 1 + (n & 1); - y = 2 * s->mb_y + 1 + ((n & 2) >> 1); + y = 2 * s->mb_y + 1 + (n>> 1); wrap = s->mb_width * 2 + 2; dc_val = s->dc_val[0]; ac_val = s->ac_val[0][0]; @@ -1310,10 +1311,13 @@ static void h263_pred_acdc(MpegEncContext * s, DCTELEM *block, int n) c = dc_val[(x) + (y - 1) * wrap]; /* No prediction outside GOB boundary */ - if (s->first_slice_line && ((n < 2) || (n > 3))) - c = 1024; - pred_dc = 1024; + if(s->first_slice_line && n!=3){ + if(n!=2) c= 1024; + if(n!=1 && s->mb_x == s->resync_mb_x) a= 1024; + } + if (s->ac_pred) { + pred_dc = 1024; if (s->h263_aic_dir) { /* left prediction */ if (a != 1024) { @@ -1348,8 +1352,8 @@ static void h263_pred_acdc(MpegEncContext * s, DCTELEM *block, int n) if (block[0] < 0) block[0] = 0; - else if (!(block[0] & 1)) - block[0]++; + else + block[0] |= 1; /* Update AC/DC tables */ dc_val[(x) + (y) * wrap] = block[0]; @@ -3517,7 +3521,14 @@ int ff_h263_decode_mb(MpegEncContext *s, cbp = (cbpc & 3) | (cbpy << 2); if (dquant) { - change_qscale(s, quant_tab[get_bits(&s->gb, 2)]); + if(s->modified_quant){ + if(get_bits1(&s->gb)) + s->qscale= modified_quant_tab[get_bits1(&s->gb)][ s->qscale ]; + else + s->qscale= get_bits(&s->gb, 5); + }else + s->qscale += quant_tab[get_bits(&s->gb, 2)]; + change_qscale(s, 0); } if((!s->progressive_sequence) && (cbp || (s->workaround_bugs&FF_BUG_XVID_ILACE))) s->interlaced_dct= get_bits1(&s->gb); @@ -3772,7 +3783,14 @@ intra: } cbp = (cbpc & 3) | (cbpy << 2); if (dquant) { - change_qscale(s, quant_tab[get_bits(&s->gb, 2)]); + if(s->modified_quant){ + if(get_bits1(&s->gb)) + s->qscale= modified_quant_tab[get_bits1(&s->gb)][ s->qscale ]; + else + s->qscale= get_bits(&s->gb, 5); + }else + s->qscale += quant_tab[get_bits(&s->gb, 2)]; + change_qscale(s, 0); } if(!s->progressive_sequence) @@ -4459,9 +4477,7 @@ int h263_decode_picture_header(MpegEncContext *s) av_log(s->avctx, AV_LOG_ERROR, "Independent Segment Decoding not supported\n"); } s->alt_inter_vlc= get_bits1(&s->gb); - if (get_bits1(&s->gb) != 0) { - av_log(s->avctx, AV_LOG_ERROR, "Modified Quantization not supported\n"); - } + s->modified_quant= get_bits1(&s->gb); skip_bits(&s->gb, 1); /* Prevent start code emulation */ @@ -4532,14 +4548,14 @@ int h263_decode_picture_header(MpegEncContext *s) if(s->h263_aic){ s->y_dc_scale_table= - s->c_dc_scale_table= h263_aic_dc_scale_table; + s->c_dc_scale_table= ff_aic_dc_scale_table; }else{ s->y_dc_scale_table= s->c_dc_scale_table= ff_mpeg1_dc_scale_table; } if(s->avctx->debug&FF_DEBUG_PICT_INFO){ - av_log(s->avctx, AV_LOG_DEBUG, "qp:%d %c size:%d rnd:%d%s%s%s%s%s%s\n", + av_log(s->avctx, AV_LOG_DEBUG, "qp:%d %c size:%d rnd:%d%s%s%s%s%s%s%s\n", s->qscale, av_get_pict_type_char(s->pict_type), s->gb.size_in_bits, 1-s->no_rounding, s->obmc ? " AP" : "", @@ -4547,7 +4563,8 @@ int h263_decode_picture_header(MpegEncContext *s) s->h263_long_vectors ? " LONG" : "", s->h263_plus ? " +" : "", s->h263_aic ? " AIC" : "", - s->alt_inter_vlc ? " AIV" : "" + s->alt_inter_vlc ? " AIV" : "", + s->modified_quant ? " MQ" : "" ); } #if 1 diff --git a/libavcodec/h263data.h b/libavcodec/h263data.h index 5af773fcc3..d048ee4f6b 100644 --- a/libavcodec/h263data.h +++ b/libavcodec/h263data.h @@ -208,8 +208,29 @@ static const uint16_t h263_format[8][2] = { { 1408, 1152 }, }; -static uint8_t h263_aic_dc_scale_table[32]={ +uint8_t ff_aic_dc_scale_table[32]={ // 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 0, 2, 4, 6, 8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62 }; +static const uint8_t modified_quant_tab[2][32]={ +// 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 +{ + 0, 3, 1, 2, 3, 4, 5, 6, 7, 8, 9, 9,10,11,12,13,14,15,16,17,18,18,19,20,21,22,23,24,25,26,27,28 +},{ + 0, 2, 3, 4, 5, 6, 7, 8, 9,10,11,13,14,15,16,17,18,19,20,21,22,24,25,26,27,28,29,30,31,31,31,26 +} +}; + +static const uint8_t chroma_qscale_tab[32]={ +// 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 + 0, 1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 9,10,10,11,11,12,12,12,13,13,13,14,14,14,14,14,15,15,15,15,15 +}; + +const uint16_t ff_mba_max[6]={ + 47, 98, 395,1583,6335,9215 +}; + +const uint8_t ff_mba_length[6]={ + 6, 7, 9, 11, 13, 14 +}; diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c index ebce4dd479..a8ca7ab8ea 100644 --- a/libavcodec/h263dec.c +++ b/libavcodec/h263dec.c @@ -52,6 +52,7 @@ int ff_h263_decode_init(AVCodecContext *avctx) switch(avctx->codec->id) { case CODEC_ID_H263: s->gob_number = 0; + s->unrestricted_mv= 0; break; case CODEC_ID_MPEG4: s->time_increment_bits = 4; /* default value for broken headers */ diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h index 62b004fa3b..e80e3b73a5 100644 --- a/libavcodec/mpegvideo.h +++ b/libavcodec/mpegvideo.h @@ -526,6 +526,7 @@ typedef struct MpegEncContext { int h263_aic; ///< Advanded INTRA Coding (AIC) int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top int alt_inter_vlc; ///< alternative inter vlc + int modified_quant; /* mpeg4 specific */ int time_increment_resolution; @@ -814,8 +815,12 @@ static inline int get_rl_index(const RLTable *rl, int last, int run, int level) extern uint8_t ff_mpeg4_y_dc_scale_table[32]; extern uint8_t ff_mpeg4_c_dc_scale_table[32]; +extern uint8_t ff_aic_dc_scale_table[32]; extern const int16_t ff_mpeg4_default_intra_matrix[64]; extern const int16_t ff_mpeg4_default_non_intra_matrix[64]; +extern const uint16_t ff_mba_max[6]; +extern const uint8_t ff_mba_length[6]; + int ff_h263_decode_init(AVCodecContext *avctx); int ff_h263_decode_frame(AVCodecContext *avctx, void *data, int *data_size, diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c index cb17dec8bd..6735911d83 100644 --- a/libavcodec/rv10.c +++ b/libavcodec/rv10.c @@ -337,6 +337,55 @@ static int rv10_decode_picture_header(MpegEncContext *s) return mb_count; } +static int rv20_decode_picture_header(MpegEncContext *s) +{ + int pb_frame, seq, mb_pos; + int i; + + if (get_bits(&s->gb, 1)) + s->pict_type = P_TYPE; + else + s->pict_type = I_TYPE; + + pb_frame = get_bits(&s->gb, 2); + + if (pb_frame){ + av_log(s->avctx, AV_LOG_ERROR, "pb frame not supported\n"); + return -1; + } + + s->qscale = get_bits(&s->gb, 5); + if(s->qscale==0){ + av_log(s->avctx, AV_LOG_ERROR, "error, qscale:0\n"); + return -1; + } + + seq= get_bits(&s->gb, 8); + + for(i=0; i<6; i++){ + if(s->mb_width*s->mb_height < ff_mba_max[i]) break; + } + mb_pos= get_bits(&s->gb, ff_mba_length[i]); + s->mb_x= mb_pos % s->mb_width; + s->mb_y= mb_pos / s->mb_width; + s->no_rounding= get_bits1(&s->gb); + + s->f_code = 1; + s->unrestricted_mv = 1; + s->h263_aic= s->pict_type == I_TYPE; +// s->alt_inter_vlc=1; +// s->obmc=1; +// s->umvplus=1; +// s->modified_quant=1; + + if(s->avctx->debug & FF_DEBUG_PICT_INFO){ + av_log(s->avctx, AV_LOG_INFO, "num:%3d x:%2d y:%2d type:%d qscale:%2d rnd:%d\n", + seq, s->mb_x, s->mb_y, s->pict_type, s->qscale, s->no_rounding); + } + + return s->mb_width*s->mb_height - mb_pos; +} + static int rv10_decode_init(AVCodecContext *avctx) { MpegEncContext *s = avctx->priv_data; @@ -348,20 +397,26 @@ static int rv10_decode_init(AVCodecContext *avctx) s->width = avctx->width; s->height = avctx->height; - s->h263_rv10 = 1; switch(avctx->sub_id){ case 0x10000000: s->rv10_version= 0; s->h263_long_vectors=0; + s->h263_rv10 = 1; break; case 0x10003000: s->rv10_version= 3; s->h263_long_vectors=1; + s->h263_rv10 = 1; break; case 0x10003001: s->rv10_version= 3; s->h263_long_vectors=0; + s->h263_rv10 = 1; break; + case 0x20001000: + case 0x20100001: + case 0x20200002: + case 0x20101001: //added default: av_log(s->avctx, AV_LOG_ERROR, "unknown header %X\n", avctx->sub_id); } @@ -373,8 +428,6 @@ static int rv10_decode_init(AVCodecContext *avctx) h263_decode_init_vlc(s); - s->y_dc_scale_table= - s->c_dc_scale_table= ff_mpeg1_dc_scale_table; s->progressive_sequence=1; /* init rv vlc */ @@ -408,8 +461,16 @@ static int rv10_decode_packet(AVCodecContext *avctx, int i, mb_count, mb_pos, left; init_get_bits(&s->gb, buf, buf_size*8); - - mb_count = rv10_decode_picture_header(s); +#if 0 + for(i=0; i<buf_size*8 && i<100; i++) + printf("%d", get_bits1(&s->gb)); + printf("\n"); + return 0; +#endif + if(s->codec_id ==CODEC_ID_RV10) + mb_count = rv10_decode_picture_header(s); + else + mb_count = rv20_decode_picture_header(s); if (mb_count < 0) { av_log(s->avctx, AV_LOG_ERROR, "HEADER ERROR\n"); return -1; @@ -426,6 +487,7 @@ static int rv10_decode_packet(AVCodecContext *avctx, av_log(s->avctx, AV_LOG_ERROR, "COUNT ERROR\n"); return -1; } +//if(s->pict_type == P_TYPE) return 0; if (s->mb_x == 0 && s->mb_y == 0) { if(MPV_frame_start(s, avctx) < 0) @@ -437,14 +499,27 @@ static int rv10_decode_packet(AVCodecContext *avctx, #endif /* default quantization values */ - s->y_dc_scale = 8; - s->c_dc_scale = 8; + if(s->codec_id== CODEC_ID_RV10){ + if(s->mb_y==0) s->first_slice_line=1; + }else{ + s->first_slice_line=1; + s->resync_mb_x= s->mb_x; + s->resync_mb_y= s->mb_y; + } + if(s->h263_aic){ + s->y_dc_scale_table= + s->c_dc_scale_table= ff_aic_dc_scale_table; + }else{ + s->y_dc_scale_table= + s->c_dc_scale_table= ff_mpeg1_dc_scale_table; + } + s->y_dc_scale= s->y_dc_scale_table[ s->qscale ]; + s->c_dc_scale= s->c_dc_scale_table[ s->qscale ]; + s->rv10_first_dc_coded[0] = 0; s->rv10_first_dc_coded[1] = 0; s->rv10_first_dc_coded[2] = 0; - if(s->mb_y==0) s->first_slice_line=1; - s->block_wrap[0]= s->block_wrap[1]= s->block_wrap[2]= @@ -454,6 +529,7 @@ static int rv10_decode_packet(AVCodecContext *avctx, ff_init_block_index(s); /* decode each macroblock */ for(i=0;i<mb_count;i++) { + int ret; ff_update_block_index(s); #ifdef DEBUG printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y); @@ -462,7 +538,9 @@ static int rv10_decode_packet(AVCodecContext *avctx, s->dsp.clear_blocks(s->block[0]); s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_16X16; - if (ff_h263_decode_mb(s, s->block) == SLICE_ERROR) { + ret=ff_h263_decode_mb(s, s->block); + + if (ret == SLICE_ERROR) { av_log(s->avctx, AV_LOG_ERROR, "ERROR at MB %d %d\n", s->mb_x, s->mb_y); return -1; } @@ -472,8 +550,10 @@ static int rv10_decode_packet(AVCodecContext *avctx, s->mb_x = 0; s->mb_y++; ff_init_block_index(s); - s->first_slice_line=0; } + if(s->mb_x == s->resync_mb_x) + s->first_slice_line=0; + if(ret == SLICE_END) break; } return buf_size; @@ -539,3 +619,15 @@ AVCodec rv10_decoder = { rv10_decode_frame, CODEC_CAP_DR1 }; + +AVCodec rv20_decoder = { + "rv20", + CODEC_TYPE_VIDEO, + CODEC_ID_RV20, + sizeof(MpegEncContext), + rv10_decode_init, + NULL, + rv10_decode_end, + rv10_decode_frame, + CODEC_CAP_DR1 +}; |