--- trunk/xvidcore/src/bitstream/bitstream.c 2002/05/01 13:00:02 152 +++ trunk/xvidcore/src/bitstream/bitstream.c 2003/02/19 21:59:30 876 @@ -38,49 +38,66 @@ ******************************************************************************/ /****************************************************************************** - * * + * * * Revision history: * - * * - * 01.05.2002 added BVOP support to BitstreamWriteVopHeader + * * + * 05.01.2003 GMC support - gruel * + * 04.10.2002 qpel support - Isibaar * + * 11.07.2002 add VOP width & height return to dec when dec->width * + * or dec->height is 0 (for use in examples/ex1.c) * + * MinChen * + * 22.05.2002 bs_put_matrix fix * + * 20.05.2002 added BitstreamWriteUserData * + * 19.06.2002 Fix a little bug in use custom quant matrix * + * MinChen * + * 08.05.2002 add low_delay support for B_VOP decode * + * MinChen * + * 06.05.2002 low_delay * + * 06.05.2002 fixed fincr/fbase error * + * 01.05.2002 added BVOP support to BitstreamWriteVopHeader * * 15.04.2002 rewrite log2bin use asm386 By MinChen * - * 26.03.2002 interlacing support * - * 03.03.2002 qmatrix writing * - * 03.03.2002 merged BITREADER and BITWRITER * - * 30.02.2002 intra_dc_threshold support * - * 04.12.2001 support for additional headers * - * 16.12.2001 inital version * + * 26.03.2002 interlacing support * + * 03.03.2002 qmatrix writing * + * 03.03.2002 merged BITREADER and BITWRITER * + * 30.02.2002 intra_dc_threshold support * + * 04.12.2001 support for additional headers * + * 16.12.2001 inital version * * * ******************************************************************************/ +#include +#include + #include "bitstream.h" #include "zigzag.h" #include "../quant/quant_matrix.h" +#include "mbcoding.h" -static int __inline log2bin(int value) +static uint32_t __inline +log2bin(uint32_t value) { /* Changed by Chenm001 */ -#ifndef WIN32 +#if !defined(_MSC_VER) int n = 0; - while (value) - { + + while (value) { value >>= 1; n++; } return n; #else - __asm{ - bsr eax,value + __asm { + bsr eax, value inc eax } #endif } -static const uint32_t intra_dc_threshold_table[] = -{ - 32, /* never use */ +static const uint32_t intra_dc_threshold_table[] = { + 32, /* never use */ 13, 15, 17, @@ -91,506 +108,1011 @@ }; -void bs_get_matrix(Bitstream * bs, uint8_t * matrix) -{ - int i = 0; - int last, value = 0; - - do - { - last = value; - value = BitstreamGetBits(bs, 8); - matrix[ scan_tables[0][i++] ] = value; - } - while (value != 0 && i < 64); - - while (i < 64) - { - matrix[ scan_tables[0][i++] ] = last; - } -} +void +bs_get_matrix(Bitstream * bs, + uint8_t * matrix) +{ + int i = 0; + int last, value = 0; + + do { + last = value; + value = BitstreamGetBits(bs, 8); + matrix[scan_tables[0][i++]] = value; + } + while (value != 0 && i < 64); + i--; // fix little bug at coeff not full + + while (i < 64) { + matrix[scan_tables[0][i++]] = last; + } +} + + + +// for PVOP addbits == fcode - 1 +// for BVOP addbits == max(fcode,bcode) - 1 +// returns mbpos +int +read_video_packet_header(Bitstream *bs, + DECODER * dec, + const int addbits, + int * quant, + int * fcode_forward, + int * fcode_backward, + int * intra_dc_threshold) +{ + int startcode_bits = NUMBITS_VP_RESYNC_MARKER + addbits; + int mbnum_bits = log2bin(dec->mb_width * dec->mb_height - 1); + int mbnum; + int hec = 0; + + BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); + BitstreamSkip(bs, startcode_bits); + + DPRINTF(DPRINTF_STARTCODE, ""); + + if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) + { + hec = BitstreamGetBit(bs); /* header_extension_code */ + if (hec && !(dec->sprite_enable == SPRITE_STATIC /* && current_coding_type = I_VOP */)) + { + BitstreamSkip(bs, 13); /* vop_width */ + READ_MARKER(); + BitstreamSkip(bs, 13); /* vop_height */ + READ_MARKER(); + BitstreamSkip(bs, 13); /* vop_horizontal_mc_spatial_ref */ + READ_MARKER(); + BitstreamSkip(bs, 13); /* vop_vertical_mc_spatial_ref */ + READ_MARKER(); + } + } + + mbnum = BitstreamGetBits(bs, mbnum_bits); /* macroblock_number */ + DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); + + if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) + { + *quant = BitstreamGetBits(bs, dec->quant_bits); /* quant_scale */ + DPRINTF(DPRINTF_HEADER, "quant %i", *quant); + } + + if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) + hec = BitstreamGetBit(bs); /* header_extension_code */ + + + DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); + if (hec) + { + int time_base; + int time_increment; + int coding_type; + + for (time_base=0; BitstreamGetBit(bs)!=0; time_base++); /* modulo_time_base */ + READ_MARKER(); + if (dec->time_inc_bits) + time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ + READ_MARKER(); + DPRINTF(DPRINTF_HEADER,"time %i:%i", time_base, time_increment); + + coding_type = BitstreamGetBits(bs, 2); + DPRINTF(DPRINTF_HEADER,"coding_type %i", coding_type); + + if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) + { + BitstreamSkip(bs, 1); /* change_conv_ratio_disable */ + if (coding_type != I_VOP) + BitstreamSkip(bs, 1); /* vop_shape_coding_type */ + } + + if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) + { + *intra_dc_threshold = intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; + + if (dec->sprite_enable == SPRITE_GMC && coding_type == S_VOP && + dec->sprite_warping_points > 0) + { + // TODO: sprite trajectory + } + if (dec->reduced_resolution_enable && + dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && + (coding_type == P_VOP || coding_type == I_VOP)) + { + BitstreamSkip(bs, 1); /* XXX: vop_reduced_resolution */ + } + + if (coding_type != I_VOP && fcode_forward) + { + *fcode_forward = BitstreamGetBits(bs, 3); + DPRINTF(DPRINTF_HEADER,"fcode_forward %i", *fcode_forward); + } + + if (coding_type == B_VOP && fcode_backward) + { + *fcode_backward = BitstreamGetBits(bs, 3); + DPRINTF(DPRINTF_HEADER,"fcode_backward %i", *fcode_backward); + } + } + + } + + if (dec->newpred_enable) + { + int vop_id; + int vop_id_for_prediction; + + vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); + DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); + if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ + { + vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); + DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); + } + READ_MARKER(); + } + + return mbnum; +} + + + + +/* vol estimation header */ +static void +read_vol_complexity_estimation_header(Bitstream * bs, DECODER * dec) +{ + ESTIMATION * e = &dec->estimation; + + e->method = BitstreamGetBits(bs, 2); /* estimation_method */ + DPRINTF(DPRINTF_HEADER,"+ complexity_estimation_header; method=%i", e->method); + + if (e->method == 0 || e->method == 1) + { + if (!BitstreamGetBit(bs)) /* shape_complexity_estimation_disable */ + { + e->opaque = BitstreamGetBit(bs); /* opaque */ + e->transparent = BitstreamGetBit(bs); /* transparent */ + e->intra_cae = BitstreamGetBit(bs); /* intra_cae */ + e->inter_cae = BitstreamGetBit(bs); /* inter_cae */ + e->no_update = BitstreamGetBit(bs); /* no_update */ + e->upsampling = BitstreamGetBit(bs); /* upsampling */ + } + + if (!BitstreamGetBit(bs)) /* texture_complexity_estimation_set_1_disable */ + { + e->intra_blocks = BitstreamGetBit(bs); /* intra_blocks */ + e->inter_blocks = BitstreamGetBit(bs); /* inter_blocks */ + e->inter4v_blocks = BitstreamGetBit(bs); /* inter4v_blocks */ + e->not_coded_blocks = BitstreamGetBit(bs); /* not_coded_blocks */ + } + } + + READ_MARKER(); + + if (!BitstreamGetBit(bs)) /* texture_complexity_estimation_set_2_disable */ + { + e->dct_coefs = BitstreamGetBit(bs); /* dct_coefs */ + e->dct_lines = BitstreamGetBit(bs); /* dct_lines */ + e->vlc_symbols = BitstreamGetBit(bs); /* vlc_symbols */ + e->vlc_bits = BitstreamGetBit(bs); /* vlc_bits */ + } + + if (!BitstreamGetBit(bs)) /* motion_compensation_complexity_disable */ + { + e->apm = BitstreamGetBit(bs); /* apm */ + e->npm = BitstreamGetBit(bs); /* npm */ + e->interpolate_mc_q = BitstreamGetBit(bs); /* interpolate_mc_q */ + e->forw_back_mc_q = BitstreamGetBit(bs); /* forw_back_mc_q */ + e->halfpel2 = BitstreamGetBit(bs); /* halfpel2 */ + e->halfpel4 = BitstreamGetBit(bs); /* halfpel4 */ + } + + READ_MARKER(); + + if (e->method == 1) + { + if (!BitstreamGetBit(bs)) /* version2_complexity_estimation_disable */ + { + e->sadct = BitstreamGetBit(bs); /* sadct */ + e->quarterpel = BitstreamGetBit(bs); /* quarterpel */ + } + } +} + + +/* vop estimation header */ +static void +read_vop_complexity_estimation_header(Bitstream * bs, DECODER * dec, int coding_type) +{ + ESTIMATION * e = &dec->estimation; + + if (e->method == 0 || e->method == 1) + { + if (coding_type == I_VOP) { + if (e->opaque) BitstreamSkip(bs, 8); /* dcecs_opaque */ + if (e->transparent) BitstreamSkip(bs, 8); /* */ + if (e->intra_cae) BitstreamSkip(bs, 8); /* */ + if (e->inter_cae) BitstreamSkip(bs, 8); /* */ + if (e->no_update) BitstreamSkip(bs, 8); /* */ + if (e->upsampling) BitstreamSkip(bs, 8); /* */ + if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ + if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ + if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ + if (e->dct_lines) BitstreamSkip(bs, 8); /* */ + if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ + if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ + if (e->sadct) BitstreamSkip(bs, 8); /* */ + } + + if (coding_type == P_VOP) { + if (e->opaque) BitstreamSkip(bs, 8); /* */ + if (e->transparent) BitstreamSkip(bs, 8); /* */ + if (e->intra_cae) BitstreamSkip(bs, 8); /* */ + if (e->inter_cae) BitstreamSkip(bs, 8); /* */ + if (e->no_update) BitstreamSkip(bs, 8); /* */ + if (e->upsampling) BitstreamSkip(bs, 8); /* */ + if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ + if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ + if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ + if (e->dct_lines) BitstreamSkip(bs, 8); /* */ + if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ + if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ + if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ + if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ + if (e->apm) BitstreamSkip(bs, 8); /* */ + if (e->npm) BitstreamSkip(bs, 8); /* */ + if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ + if (e->halfpel2) BitstreamSkip(bs, 8); /* */ + if (e->halfpel4) BitstreamSkip(bs, 8); /* */ + if (e->sadct) BitstreamSkip(bs, 8); /* */ + if (e->quarterpel) BitstreamSkip(bs, 8); /* */ + } + if (coding_type == B_VOP) { + if (e->opaque) BitstreamSkip(bs, 8); /* */ + if (e->transparent) BitstreamSkip(bs, 8); /* */ + if (e->intra_cae) BitstreamSkip(bs, 8); /* */ + if (e->inter_cae) BitstreamSkip(bs, 8); /* */ + if (e->no_update) BitstreamSkip(bs, 8); /* */ + if (e->upsampling) BitstreamSkip(bs, 8); /* */ + if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ + if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ + if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ + if (e->dct_lines) BitstreamSkip(bs, 8); /* */ + if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ + if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ + if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ + if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ + if (e->apm) BitstreamSkip(bs, 8); /* */ + if (e->npm) BitstreamSkip(bs, 8); /* */ + if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ + if (e->halfpel2) BitstreamSkip(bs, 8); /* */ + if (e->halfpel4) BitstreamSkip(bs, 8); /* */ + if (e->interpolate_mc_q) BitstreamSkip(bs, 8); /* */ + if (e->sadct) BitstreamSkip(bs, 8); /* */ + if (e->quarterpel) BitstreamSkip(bs, 8); /* */ + } + + if (coding_type == S_VOP && dec->sprite_enable == SPRITE_STATIC) { + if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ + if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ + if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ + if (e->dct_lines) BitstreamSkip(bs, 8); /* */ + if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ + if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ + if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ + if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ + if (e->apm) BitstreamSkip(bs, 8); /* */ + if (e->npm) BitstreamSkip(bs, 8); /* */ + if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ + if (e->halfpel2) BitstreamSkip(bs, 8); /* */ + if (e->halfpel4) BitstreamSkip(bs, 8); /* */ + if (e->interpolate_mc_q) BitstreamSkip(bs, 8); /* */ + } + } +} + + + + /* decode headers returns coding_type, or -1 if error */ -int BitstreamReadHeaders(Bitstream * bs, DECODER * dec, uint32_t * rounding, uint32_t * quant, uint32_t * fcode, uint32_t * intra_dc_threshold) +#define VIDOBJ_START_CODE_MASK 0x0000001f +#define VIDOBJLAY_START_CODE_MASK 0x0000000f + +int +BitstreamReadHeaders(Bitstream * bs, + DECODER * dec, + uint32_t * rounding, + uint32_t * reduced_resolution, + uint32_t * quant, + uint32_t * fcode_forward, + uint32_t * fcode_backward, + uint32_t * intra_dc_threshold, + WARPPOINTS *gmc_warp) { uint32_t vol_ver_id; - uint32_t time_inc_resolution; uint32_t coding_type; uint32_t start_code; - - do - { + uint32_t time_incr = 0; + int32_t time_increment = 0; + int resize = 0; + + do { + BitstreamByteAlign(bs); start_code = BitstreamShowBits(bs, 32); - if (start_code == VISOBJSEQ_START_CODE) - { - // DEBUG("visual_object_sequence"); - BitstreamSkip(bs, 32); // visual_object_sequence_start_code - BitstreamSkip(bs, 8); // profile_and_level_indication - } - else if (start_code == VISOBJSEQ_STOP_CODE) - { - BitstreamSkip(bs, 32); // visual_object_sequence_stop_code - } - else if (start_code == VISOBJ_START_CODE) - { - // DEBUG("visual_object"); - BitstreamSkip(bs,32); // visual_object_start_code - if (BitstreamGetBit(bs)) // is_visual_object_identified - { - vol_ver_id = BitstreamGetBits(bs,4); // visual_object_ver_id - BitstreamSkip(bs, 3); // visual_object_priority - } - else + if (start_code == VISOBJSEQ_START_CODE) { + + int profile; + + DPRINTF(DPRINTF_STARTCODE, ""); + + BitstreamSkip(bs, 32); // visual_object_sequence_start_code + profile = BitstreamGetBits(bs, 8); // profile_and_level_indication + + DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); + + } else if (start_code == VISOBJSEQ_STOP_CODE) { + + BitstreamSkip(bs, 32); // visual_object_sequence_stop_code + + DPRINTF(DPRINTF_STARTCODE, ""); + + } else if (start_code == VISOBJ_START_CODE) { + int visobj_ver_id; + + DPRINTF(DPRINTF_STARTCODE, ""); + + BitstreamSkip(bs, 32); // visual_object_start_code + if (BitstreamGetBit(bs)) // is_visual_object_identified { - vol_ver_id = 1; + visobj_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id + DPRINTF(DPRINTF_HEADER,"visobj_ver_id %i", visobj_ver_id); + BitstreamSkip(bs, 3); // visual_object_priority + } else { + visobj_ver_id = 1; } if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type { - DEBUG("visual_object_type != video"); + DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); return -1; } BitstreamSkip(bs, 4); // video_signal_type - if (BitstreamGetBit(bs)) // video_signal_type + if (BitstreamGetBit(bs)) // video_signal_type { - DEBUG("+ video_signal_type"); - BitstreamSkip(bs, 3); // video_format - BitstreamSkip(bs, 1); // video_range - if (BitstreamGetBit(bs)) // color_description + DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); + BitstreamSkip(bs, 3); // video_format + BitstreamSkip(bs, 1); // video_range + if (BitstreamGetBit(bs)) // color_description { - DEBUG("+ color_description"); - BitstreamSkip(bs, 8); // color_primaries - BitstreamSkip(bs, 8); // transfer_characteristics - BitstreamSkip(bs, 8); // matrix_coefficients + DPRINTF(DPRINTF_HEADER,"+ color_description"); + BitstreamSkip(bs, 8); // color_primaries + BitstreamSkip(bs, 8); // transfer_characteristics + BitstreamSkip(bs, 8); // matrix_coefficients } } - } - else if ((start_code & ~0x1f) == VIDOBJ_START_CODE) - { - BitstreamSkip(bs, 32); // video_object_start_code - } - else if ((start_code & ~0xf) == VIDOBJLAY_START_CODE) - { - // DEBUG("video_object_layer"); - BitstreamSkip(bs, 32); // video_object_layer_start_code + } else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { - BitstreamSkip(bs, 1); // random_accessible_vol + DPRINTF(DPRINTF_STARTCODE, ""); + DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); + + BitstreamSkip(bs, 32); // video_object_start_code + + } else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { + + DPRINTF(DPRINTF_STARTCODE, ""); + DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); + + BitstreamSkip(bs, 32); // video_object_layer_start_code + + BitstreamSkip(bs, 1); // random_accessible_vol // video_object_type_indication - if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && - BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && - BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && - BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX + if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && + BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && + BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && + BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ACE && + BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ART_SIMPLE && + BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX { - DEBUG1("video_object_type_indication not supported", BitstreamShowBits(bs, 8)); + DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", + BitstreamShowBits(bs, 8)); return -1; } BitstreamSkip(bs, 8); - if (BitstreamGetBit(bs)) // is_object_layer_identifier - { - DEBUG("+ is_object_layer_identifier"); - vol_ver_id = BitstreamGetBits(bs,4); // video_object_layer_verid - BitstreamSkip(bs, 3); // video_object_layer_priority - } - else + if (BitstreamGetBit(bs)) // is_object_layer_identifier { + DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); + vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid + DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); + BitstreamSkip(bs, 3); // video_object_layer_priority + } else { vol_ver_id = 1; } - //DEBUGI("vol_ver_id", vol_ver_id); - if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info + dec->aspect_ratio = BitstreamGetBits(bs, 4); + + if (dec->aspect_ratio == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info { - DEBUG("+ aspect_ratio_info"); - BitstreamSkip(bs, 8); // par_width - BitstreamSkip(bs, 8); // par_height + DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); + dec->par_width = BitstreamGetBits(bs, 8); // par_width + dec->par_height = BitstreamGetBits(bs, 8); // par_height } - if (BitstreamGetBit(bs)) // vol_control_parameters + if (BitstreamGetBit(bs)) // vol_control_parameters { - DEBUG("+ vol_control_parameters"); - BitstreamSkip(bs, 2); // chroma_format - BitstreamSkip(bs, 1); // low_delay - if (BitstreamGetBit(bs)) // vbv_parameters + DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); + BitstreamSkip(bs, 2); // chroma_format + dec->low_delay = BitstreamGetBit(bs); // low_delay + DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); + if (BitstreamGetBit(bs)) // vbv_parameters { - DEBUG("+ vbv_parameters"); - BitstreamSkip(bs, 15); // first_half_bitrate + unsigned int bitrate; + unsigned int buffer_size; + unsigned int occupancy; + + DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); + + bitrate = BitstreamGetBits(bs,15) << 15; // first_half_bit_rate READ_MARKER(); - BitstreamSkip(bs, 15); // latter_half_bitrate + bitrate |= BitstreamGetBits(bs,15); // latter_half_bit_rate READ_MARKER(); - BitstreamSkip(bs, 15); // first_half_vbv_buffer_size + + buffer_size = BitstreamGetBits(bs, 15) << 3; // first_half_vbv_buffer_size READ_MARKER(); - BitstreamSkip(bs, 3); // latter_half_vbv_buffer_size - BitstreamSkip(bs, 11); // first_half_vbv_occupancy + buffer_size |= BitstreamGetBits(bs, 3); // latter_half_vbv_buffer_size + + occupancy = BitstreamGetBits(bs, 11) << 15; // first_half_vbv_occupancy READ_MARKER(); - BitstreamSkip(bs, 15); // latter_half_vbv_occupancy + occupancy |= BitstreamGetBits(bs, 15); // latter_half_vbv_occupancy READ_MARKER(); - + + DPRINTF(DPRINTF_HEADER,"bitrate %d (unit=400 bps)", bitrate); + DPRINTF(DPRINTF_HEADER,"buffer_size %d (unit=16384 bits)", buffer_size); + DPRINTF(DPRINTF_HEADER,"occupancy %d (unit=64 bits)", occupancy); } + }else{ + dec->low_delay = dec->low_delay_default; } dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape - // DEBUG1("shape", dec->shape); - - if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) + + DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); + if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { - BitstreamSkip(bs, 4); // video_object_layer_shape_extension + DPRINTF(DPRINTF_ERROR,"non-rectangular shapes are not supported"); + } + + if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { + BitstreamSkip(bs, 4); // video_object_layer_shape_extension } READ_MARKER(); - time_inc_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution - time_inc_resolution--; - if (time_inc_resolution > 0) - { - dec->time_inc_bits = log2bin(time_inc_resolution); - } - else - { +// *************************** for decode B-frame time *********************** + dec->time_inc_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution + DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", dec->time_inc_resolution); + +// dec->time_inc_resolution--; + + if (dec->time_inc_resolution > 0) { + dec->time_inc_bits = log2bin(dec->time_inc_resolution-1); + } else { // dec->time_inc_bits = 0; - // for "old" xvid compatibility, set time_inc_bits = 1 dec->time_inc_bits = 1; } READ_MARKER(); - if (BitstreamGetBit(bs)) // fixed_vop_rate + if (BitstreamGetBit(bs)) // fixed_vop_rate { + DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment } - if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) - { + if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { - if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) - { + if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) { uint32_t width, height; READ_MARKER(); - width = BitstreamGetBits(bs, 13); // video_object_layer_width - //DEBUGI("width", width); + width = BitstreamGetBits(bs, 13); // video_object_layer_width READ_MARKER(); - height = BitstreamGetBits(bs, 13); // video_object_layer_height - //DEBUGI("height", height); + height = BitstreamGetBits(bs, 13); // video_object_layer_height READ_MARKER(); - if (width != dec->width || height != dec->height) + DPRINTF(DPRINTF_HEADER, "width %i", width); + DPRINTF(DPRINTF_HEADER, "height %i", height); + + if (dec->width != width || dec->height != height) { - DEBUG("FATAL: video dimension discrepancy ***"); - DEBUG2("bitstream width/height", width, height); - DEBUG2("param width/height", dec->width, dec->height); - return -1; + if (dec->fixed_dimensions) + { + DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); + return -1; + } + resize = 1; + dec->width = width; + dec->height = height; } - } - if ((dec->interlacing = BitstreamGetBit(bs))) - { - DEBUG("vol: interlacing"); - } + dec->interlacing = BitstreamGetBit(bs); + DPRINTF(DPRINTF_HEADER, "interlacing %i", dec->interlacing); - if (!BitstreamGetBit(bs)) // obmc_disable + if (!BitstreamGetBit(bs)) // obmc_disable { - DEBUG("IGNORED/TODO: !obmc_disable"); + DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); // TODO // fucking divx4.02 has this enabled } - if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable + dec->sprite_enable = BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2)); // sprite_enable + + if (dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable == SPRITE_GMC) { - DEBUG("sprite_enable; not supported"); - return -1; + int low_latency_sprite_enable; + + if (dec->sprite_enable != SPRITE_GMC) + { + int sprite_width; + int sprite_height; + int sprite_left_coord; + int sprite_top_coord; + sprite_width = BitstreamGetBits(bs, 13); // sprite_width + READ_MARKER(); + sprite_height = BitstreamGetBits(bs, 13); // sprite_height + READ_MARKER(); + sprite_left_coord = BitstreamGetBits(bs, 13); // sprite_left_coordinate + READ_MARKER(); + sprite_top_coord = BitstreamGetBits(bs, 13); // sprite_top_coordinate + READ_MARKER(); + } + dec->sprite_warping_points = BitstreamGetBits(bs, 6); // no_of_sprite_warping_points + dec->sprite_warping_accuracy = BitstreamGetBits(bs, 2); // sprite_warping_accuracy + dec->sprite_brightness_change = BitstreamGetBits(bs, 1); // brightness_change + if (dec->sprite_enable != SPRITE_GMC) + { + low_latency_sprite_enable = BitstreamGetBits(bs, 1); // low_latency_sprite_enable + } } - - if (vol_ver_id != 1 && dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) - { - BitstreamSkip(bs, 1); // sadct_disable + + if (vol_ver_id != 1 && + dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { + BitstreamSkip(bs, 1); // sadct_disable } - if (BitstreamGetBit(bs)) // not_8_bit + if (BitstreamGetBit(bs)) // not_8_bit { - DEBUG("+ not_8_bit [IGNORED/TODO]"); + DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision - BitstreamSkip(bs, 4); // bits_per_pixel - } - else - { + BitstreamSkip(bs, 4); // bits_per_pixel + } else { dec->quant_bits = 5; } - if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) - { - BitstreamSkip(bs, 1); // no_gray_quant_update - BitstreamSkip(bs, 1); // composition_method - BitstreamSkip(bs, 1); // linear_composition + if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { + BitstreamSkip(bs, 1); // no_gray_quant_update + BitstreamSkip(bs, 1); // composition_method + BitstreamSkip(bs, 1); // linear_composition } - dec->quant_type = BitstreamGetBit(bs); // quant_type - // DEBUG1("**** quant_type", dec->quant_type); + dec->quant_type = BitstreamGetBit(bs); // quant_type + DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); - if (dec->quant_type) - { - if (BitstreamGetBit(bs)) // load_intra_quant_mat + if (dec->quant_type) { + if (BitstreamGetBit(bs)) // load_intra_quant_mat { uint8_t matrix[64]; + + DPRINTF(DPRINTF_HEADER, "load_intra_quant_mat"); + bs_get_matrix(bs, matrix); set_intra_matrix(matrix); - } - else + } else set_intra_matrix(get_default_intra_matrix()); - if (BitstreamGetBit(bs)) // load_inter_quant_mat + if (BitstreamGetBit(bs)) // load_inter_quant_mat { - uint8_t matrix[64]; + uint8_t matrix[64]; + + DPRINTF(DPRINTF_HEADER, "load_inter_quant_mat"); + bs_get_matrix(bs, matrix); set_inter_matrix(matrix); - } - else + } else set_inter_matrix(get_default_inter_matrix()); - if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) - { - // TODO - DEBUG("TODO: grayscale matrix stuff"); + if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { + DPRINTF(DPRINTF_ERROR, "greyscale matrix not supported"); return -1; } } - - if (vol_ver_id != 1) - { - dec->quarterpel = BitstreamGetBit(bs); // quarter_sampe - if (dec->quarterpel) - { - DEBUG("IGNORED/TODO: quarter_sample"); - } + + if (vol_ver_id != 1) { + dec->quarterpel = BitstreamGetBit(bs); // quarter_sample + DPRINTF(DPRINTF_HEADER,"quarterpel %i", dec->quarterpel); } else - { dec->quarterpel = 0; - } + - if (!BitstreamGetBit(bs)) // complexity_estimation_disable + dec->complexity_estimation_disable = BitstreamGetBit(bs); /* complexity estimation disable */ + if (!dec->complexity_estimation_disable) { - DEBUG("TODO: complexity_estimation header"); - // TODO - return -1; + read_vol_complexity_estimation_header(bs, dec); } - if (!BitstreamGetBit(bs)) // resync_marker_disable - { - DEBUG("IGNORED/TODO: !resync_marker_disable"); - // TODO - } + BitstreamSkip(bs, 1); // resync_marker_disable - if (BitstreamGetBit(bs)) // data_partitioned + if (BitstreamGetBit(bs)) // data_partitioned { - DEBUG("+ data_partitioned"); - BitstreamSkip(bs, 1); // reversible_vlc + DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); + BitstreamSkip(bs, 1); // reversible_vlc } - if (vol_ver_id != 1) - { - if (BitstreamGetBit(bs)) // newpred_enable + if (vol_ver_id != 1) { + dec->newpred_enable = BitstreamGetBit(bs); + if (dec->newpred_enable) // newpred_enable { - DEBUG("+ newpred_enable"); - BitstreamSkip(bs, 2); // requested_upstream_message_type - BitstreamSkip(bs, 1); // newpred_segment_type - } - if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable - { - DEBUG("TODO: reduced_resolution_vop_enable"); - // TODO - return -1; + DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); + BitstreamSkip(bs, 2); // requested_upstream_message_type + BitstreamSkip(bs, 1); // newpred_segment_type } + dec->reduced_resolution_enable = BitstreamGetBit(bs); /* reduced_resolution_vop_enable */ + DPRINTF(DPRINTF_HEADER, "reduced_resolution_enable %i", dec->reduced_resolution_enable); } - - if (BitstreamGetBit(bs)) // scalability + else { - // TODO - DEBUG("TODO: scalability"); + dec->newpred_enable = 0; + dec->reduced_resolution_enable = 0; + } + + dec->scalability = BitstreamGetBit(bs); /* scalability */ + if (dec->scalability) + { + DPRINTF(DPRINTF_ERROR, "scalability not supported"); + BitstreamSkip(bs, 1); /* hierarchy_type */ + BitstreamSkip(bs, 4); /* ref_layer_id */ + BitstreamSkip(bs, 1); /* ref_layer_sampling_direc */ + BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ + BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ + BitstreamSkip(bs, 5); /* vert_sampling_factor_n */ + BitstreamSkip(bs, 5); /* vert_sampling_factor_m */ + BitstreamSkip(bs, 1); /* enhancement_type */ + if(dec->shape == VIDOBJLAY_SHAPE_BINARY /* && hierarchy_type==0 */) { + BitstreamSkip(bs, 1); /* use_ref_shape */ + BitstreamSkip(bs, 1); /* use_ref_texture */ + BitstreamSkip(bs, 5); /* shape_hor_sampling_factor_n */ + BitstreamSkip(bs, 5); /* shape_hor_sampling_factor_m */ + BitstreamSkip(bs, 5); /* shape_vert_sampling_factor_n */ + BitstreamSkip(bs, 5); /* shape_vert_sampling_factor_m */ + } return -1; } - } - else // dec->shape == BINARY_ONLY + } else // dec->shape == BINARY_ONLY { - if (vol_ver_id != 1) - { - if (BitstreamGetBit(bs)) // scalability + if (vol_ver_id != 1) { + dec->scalability = BitstreamGetBit(bs); /* scalability */ + if (dec->scalability) { - // TODO - DEBUG("TODO: scalability"); + DPRINTF(DPRINTF_ERROR, "scalability not supported"); + BitstreamSkip(bs, 4); /* ref_layer_id */ + BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ + BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ + BitstreamSkip(bs, 5); /* vert_sampling_factor_n */ + BitstreamSkip(bs, 5); /* vert_sampling_factor_m */ return -1; } } - BitstreamSkip(bs, 1); // resync_marker_disable + BitstreamSkip(bs, 1); // resync_marker_disable } - } - else if (start_code == GRPOFVOP_START_CODE) - { - // DEBUG("group_of_vop"); + return (resize ? -3 : -2 ); /* VOL */ + + } else if (start_code == GRPOFVOP_START_CODE) { + + DPRINTF(DPRINTF_STARTCODE, ""); + BitstreamSkip(bs, 32); { int hours, minutes, seconds; + hours = BitstreamGetBits(bs, 5); minutes = BitstreamGetBits(bs, 6); READ_MARKER(); seconds = BitstreamGetBits(bs, 6); - // DEBUG3("hms", hours, minutes, seconds); + + DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours,minutes,seconds); } - BitstreamSkip(bs, 1); // closed_gov - BitstreamSkip(bs, 1); // broken_link - } - else if (start_code == VOP_START_CODE) - { - // DEBUG("vop_start_code"); - BitstreamSkip(bs, 32); // vop_start_code + BitstreamSkip(bs, 1); // closed_gov + BitstreamSkip(bs, 1); // broken_link - coding_type = BitstreamGetBits(bs, 2); // vop_coding_type - //DEBUG1("coding_type", coding_type); + } else if (start_code == VOP_START_CODE) { + + DPRINTF(DPRINTF_STARTCODE, ""); + + BitstreamSkip(bs, 32); // vop_start_code + + coding_type = BitstreamGetBits(bs, 2); // vop_coding_type + DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); + +// *************************** for decode B-frame time *********************** + while (BitstreamGetBit(bs) != 0) // time_base + time_incr++; - while (BitstreamGetBit(bs) != 0) ; // time_base - READ_MARKER(); - - //DEBUG1("time_inc_bits", dec->time_inc_bits); - //DEBUG1("vop_time_incr", BitstreamShowBits(bs, dec->time_inc_bits)); - if (dec->time_inc_bits) - { - BitstreamSkip(bs, dec->time_inc_bits); // vop_time_increment + + if (dec->time_inc_bits) { + time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment + } + + DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); + DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); + + DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", + coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : coding_type == B_VOP ? 'B' : 'S', + time_incr, time_increment); + + if (coding_type != B_VOP) { + dec->last_time_base = dec->time_base; + dec->time_base += time_incr; + dec->time = time_increment; + +/* dec->time_base * dec->time_inc_resolution + + time_increment; +*/ dec->time_pp = (uint32_t) + (dec->time_inc_resolution + dec->time - dec->last_non_b_time)%dec->time_inc_resolution; + dec->last_non_b_time = dec->time; + } else { + dec->time = time_increment; +/* + (dec->last_time_base + + time_incr) * dec->time_inc_resolution + time_increment; +*/ + dec->time_bp = (uint32_t) + (dec->time_inc_resolution + dec->last_non_b_time - dec->time)%dec->time_inc_resolution; } + DPRINTF(DPRINTF_HEADER,"time_pp=%i", dec->time_pp); + DPRINTF(DPRINTF_HEADER,"time_bp=%i", dec->time_bp); READ_MARKER(); - if (!BitstreamGetBit(bs)) // vop_coded + if (!BitstreamGetBit(bs)) // vop_coded { + DPRINTF(DPRINTF_HEADER, "vop_coded==false"); return N_VOP; } - /* if (newpred_enable) + if (dec->newpred_enable) { + int vop_id; + int vop_id_for_prediction; + + vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); + DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); + if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ + { + vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); + DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); + } + READ_MARKER(); } - */ - if (coding_type != I_VOP) - { + + + // fix a little bug by MinChen + if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && + ( (coding_type == P_VOP) || (coding_type == S_VOP && dec->sprite_enable == SPRITE_GMC) ) ) { *rounding = BitstreamGetBit(bs); // rounding_type - //DEBUG1("rounding", *rounding); + DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); } - /* if (reduced_resolution_enable) + if (dec->reduced_resolution_enable && + dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && + (coding_type == P_VOP || coding_type == I_VOP)) { + + *reduced_resolution = BitstreamGetBit(bs); + DPRINTF(DPRINTF_HEADER, "reduced_resolution %i", *reduced_resolution); + } + else { + *reduced_resolution = 0; } - */ - if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) - { - uint32_t width, height; - uint32_t horiz_mc_ref, vert_mc_ref; - - width = BitstreamGetBits(bs, 13); - READ_MARKER(); - height = BitstreamGetBits(bs, 13); - READ_MARKER(); - horiz_mc_ref = BitstreamGetBits(bs, 13); - READ_MARKER(); - vert_mc_ref = BitstreamGetBits(bs, 13); - READ_MARKER(); + if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { + if(!(dec->sprite_enable == SPRITE_STATIC && coding_type == I_VOP)) { - // DEBUG2("vop_width/height", width, height); - // DEBUG2("ref ", horiz_mc_ref, vert_mc_ref); + uint32_t width, height; + uint32_t horiz_mc_ref, vert_mc_ref; - BitstreamSkip(bs, 1); // change_conv_ratio_disable - if (BitstreamGetBit(bs)) // vop_constant_alpha + width = BitstreamGetBits(bs, 13); + READ_MARKER(); + height = BitstreamGetBits(bs, 13); + READ_MARKER(); + horiz_mc_ref = BitstreamGetBits(bs, 13); + READ_MARKER(); + vert_mc_ref = BitstreamGetBits(bs, 13); + READ_MARKER(); + + DPRINTF(DPRINTF_HEADER, "width %i", width); + DPRINTF(DPRINTF_HEADER, "height %i", height); + DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); + DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); + } + + BitstreamSkip(bs, 1); // change_conv_ratio_disable + if (BitstreamGetBit(bs)) // vop_constant_alpha { - BitstreamSkip(bs, 8); // vop_constant_alpha_value + BitstreamSkip(bs, 8); // vop_constant_alpha_value } } - - if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) - { + if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { + + if (!dec->complexity_estimation_disable) + { + read_vop_complexity_estimation_header(bs, dec, coding_type); + } + // intra_dc_vlc_threshold - *intra_dc_threshold = intra_dc_threshold_table[ BitstreamGetBits(bs,3) ]; + *intra_dc_threshold = + intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; - if (dec->interlacing) + dec->top_field_first = 0; + dec->alternate_vertical_scan = 0; + + if (dec->interlacing) { + dec->top_field_first = BitstreamGetBit(bs); + DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); + dec->alternate_vertical_scan = BitstreamGetBit(bs); + DPRINTF(DPRINTF_HEADER, "interlace alternate_vertical_scan %i", dec->alternate_vertical_scan); + + } + } + + if ((dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable== SPRITE_GMC) && coding_type == S_VOP) { + + int i; + + for (i = 0 ; i < dec->sprite_warping_points; i++) { - if ((dec->top_field_first = BitstreamGetBit(bs))) - { - DEBUG("vop: top_field_first"); + int length; + int x = 0, y = 0; + + /* sprite code borowed from ffmpeg; thx Michael Niedermayer */ + length = bs_get_spritetrajectory(bs); + if(length){ + x= BitstreamGetBits(bs, length); + if ((x >> (length - 1)) == 0) /* if MSB not set it is negative*/ + x = - (x ^ ((1 << length) - 1)); } - if ((dec->alternate_vertical_scan = BitstreamGetBit(bs))) - { - DEBUG("vop: alternate_vertical_scan"); + READ_MARKER(); + + length = bs_get_spritetrajectory(bs); + if(length){ + y = BitstreamGetBits(bs, length); + if ((y >> (length - 1)) == 0) /* if MSB not set it is negative*/ + y = - (y ^ ((1 << length) - 1)); } + READ_MARKER(); + + gmc_warp->duv[i].x = x; + gmc_warp->duv[i].y = y; + + DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); + } + + if (dec->sprite_brightness_change) + { + // XXX: brightness_change_factor() + } + if (dec->sprite_enable == SPRITE_STATIC) + { + // XXX: todo } + } - - *quant = BitstreamGetBits(bs, dec->quant_bits); // vop_quant - //DEBUG1("quant", *quant); - - if (coding_type != I_VOP) - { - *fcode = BitstreamGetBits(bs, 3); // fcode_forward + + if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant + *quant = 1; + DPRINTF(DPRINTF_HEADER, "quant %i", *quant); + + if (coding_type != I_VOP) { + *fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward + DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); + } + + if (coding_type == B_VOP) { + *fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward + DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); } + if (!dec->scalability) { + if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && + (coding_type != I_VOP)) { + BitstreamSkip(bs, 1); // vop_shape_coding_type + } + } + return coding_type; + + } else if (start_code == USERDATA_START_CODE) { + char tmp[256]; + int i, version, build; + char packed; + + BitstreamSkip(bs, 32); // user_data_start_code + + tmp[0] = BitstreamShowBits(bs, 8); + + for(i = 1; i < 256; i++){ + tmp[i] = (BitstreamShowBits(bs, 16) & 0xFF); - if (coding_type == B_VOP) + if(tmp[i] == 0) + break; + + BitstreamSkip(bs, 8); + } + + DPRINTF(DPRINTF_STARTCODE, ": %s\n", tmp); + + /* divx detection */ + i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); + if (i < 2) + i = sscanf(tmp, "DivX%db%d%c", &version, &build, &packed); + + if (i >= 2) { - // *fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward + dec->packed_mode = (i == 3 && packed == 'p'); + DPRINTF(DPRINTF_HEADER, "divx version=%i, build=%i packed=%i", + version, build, dec->packed_mode); } - return coding_type; - } - else if (start_code == USERDATA_START_CODE) - { - // DEBUG("user_data"); - BitstreamSkip(bs, 32); // user_data_start_code - } - else // start_code == ? + + } else // start_code == ? { - if (BitstreamShowBits(bs, 24) == 0x000001) - { - DEBUG1("*** WARNING: unknown start_code", BitstreamShowBits(bs, 32)); + if (BitstreamShowBits(bs, 24) == 0x000001) { + DPRINTF(DPRINTF_STARTCODE, "", BitstreamShowBits(bs, 32)); } BitstreamSkip(bs, 8); } } while ((BitstreamPos(bs) >> 3) < bs->length); - DEBUG("*** WARNING: no vop_start_code found"); - return -1; /* ignore it */ + //DPRINTF("*** WARNING: no vop_start_code found"); + return -1; /* ignore it */ } /* write custom quant matrix */ -static void bs_put_matrix(Bitstream * bs, const int16_t *matrix) +static void +bs_put_matrix(Bitstream * bs, + const int16_t * matrix) { int i, j; const int last = matrix[scan_tables[0][63]]; - for (j = 63; j >= 0 && matrix[scan_tables[0][j - 1]] == last; j--) ; + for (j = 63; j > 0 && matrix[scan_tables[0][j - 1]] == last; j--); - for (i = 0; i <= j; i++) - { + for (i = 0; i <= j; i++) { BitstreamPutBits(bs, matrix[scan_tables[0][i]], 8); } - if (j < 63) - { + if (j < 63) { BitstreamPutBits(bs, 0, 8); } } @@ -599,141 +1121,272 @@ /* write vol header */ -void BitstreamWriteVolHeader(Bitstream * const bs, - const MBParam * pParam, const FRAMEINFO * frame) +void +BitstreamWriteVolHeader(Bitstream * const bs, + const MBParam * pParam, + const FRAMEINFO * const frame) { + static const unsigned int vo_id = 0; + static const unsigned int vol_id = 0; + int vol_ver_id=1; + int profile = 0x03; /* simple profile/level 3 */ + + if ( pParam->m_quarterpel || (frame->global_flags & XVID_GMC) || + (pParam->global & XVID_GLOBAL_REDUCED)) + vol_ver_id = 2; + + if ((pParam->global & XVID_GLOBAL_REDUCED)) + profile = 0x93; /* advanced realtime simple profile/level 3 */ + + if (pParam->m_quarterpel || (frame->global_flags & XVID_GMC)) + profile = 0xf3; /* advanced simple profile/level 2 */ + + // visual_object_sequence_start_code +// BitstreamPad(bs); +/* no padding here, anymore. You have to make sure that you are + byte aligned, and that always 1-8 padding bits have been written */ + + BitstreamPutBits(bs, VISOBJSEQ_START_CODE, 32); + BitstreamPutBits(bs, profile, 8); + + // visual_object_start_code + BitstreamPad(bs); + BitstreamPutBits(bs, VISOBJ_START_CODE, 32); + BitstreamPutBits(bs, 0, 1); // is_visual_object_identifier + BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); // visual_object_type + // video object_start_code & vo_id - BitstreamPad(bs); - BitstreamPutBits(bs, VO_START_CODE, 27); - BitstreamPutBits(bs, 0, 5); + BitstreamPad(bs); + BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); // video_object_layer_start_code & vol_id - BitstreamPutBits(bs, VOL_START_CODE, 28); - BitstreamPutBits(bs, 0, 4); + BitstreamPad(bs); + BitstreamPutBits(bs, VIDOBJLAY_START_CODE|(vol_id&0x4), 32); - BitstreamPutBit(bs, 0); // random_accessible_vol - BitstreamPutBits(bs, 0, 8); // video_object_type_indication - BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) - BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) - BitstreamPutBit(bs, 0); // vol_control_parameters (0=not given) - BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) + BitstreamPutBit(bs, 0); // random_accessible_vol + BitstreamPutBits(bs, 0, 8); // video_object_type_indication - WRITE_MARKER(); - - /* time_increment_resolution; ignored by current decore versions - eg. 2fps res=2 inc=1 - 25fps res=25 inc=1 - 29.97fps res=30000 inc=1001 - */ - BitstreamPutBits(bs, 2, 16); + if (vol_ver_id == 1) + { + BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) + } + else + { + BitstreamPutBit(bs, 1); // is_object_layer_identified + BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 + BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==lowest, 7==highest) ?? + } + + BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) + + BitstreamPutBit(bs, 1); // vol_control_parameters + BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" + + if (pParam->max_bframes > 0) { + BitstreamPutBit(bs, 0); // low_delay + } else + { + BitstreamPutBit(bs, 1); // low_delay + } + BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) + + BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) WRITE_MARKER(); - // fixed_vop_rate - BitstreamPutBit(bs, 0); + /* time_inc_resolution; ignored by current decore versions + eg. 2fps res=2 inc=1 + 25fps res=25 inc=1 + 29.97fps res=30000 inc=1001 + */ + BitstreamPutBits(bs, pParam->fbase, 16); - // fixed_time_increment: value=nth_of_sec, nbits = log2(resolution) - // BitstreamPutBits(bs, 0, 15); + WRITE_MARKER(); + + BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 + BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment WRITE_MARKER(); - BitstreamPutBits(bs, pParam->width, 13); // width + BitstreamPutBits(bs, pParam->width, 13); // width WRITE_MARKER(); - BitstreamPutBits(bs, pParam->height, 13); // height + BitstreamPutBits(bs, pParam->height, 13); // height WRITE_MARKER(); - - BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace + + BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) - BitstreamPutBit(bs, 0); // sprite_enable - BitstreamPutBit(bs, 0); // not_in_bit + + if (vol_ver_id != 1) + { if (frame->global_flags & XVID_GMC) + { BitstreamPutBits(bs, 2, 2); // sprite_enable=='GMC' + BitstreamPutBits(bs, 2, 6); // no_of_sprite_warping_points + BitstreamPutBits(bs, 3, 2); // sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 + BitstreamPutBit(bs, 0); // sprite_brightness_change (not supported) + +/* currently we use no_of_sprite_warping_points==2, sprite_warping_accuracy==3 + for DivX5 compatability */ + + } else + BitstreamPutBits(bs, 0, 2); // sprite_enable==off + } + else + BitstreamPutBit(bs, 0); // sprite_enable==off + + BitstreamPutBit(bs, 0); // not_8_bit // quant_type 0=h.263 1=mpeg4(quantizer tables) BitstreamPutBit(bs, pParam->m_quant_type); - - if (pParam->m_quant_type) - { + + if (pParam->m_quant_type) { BitstreamPutBit(bs, get_intra_matrix_status()); // load_intra_quant_mat - if (get_intra_matrix_status()) - { + if (get_intra_matrix_status()) { bs_put_matrix(bs, get_intra_matrix()); } - BitstreamPutBit(bs, get_inter_matrix_status()); // load_inter_quant_mat - if (get_inter_matrix_status()) - { + BitstreamPutBit(bs, get_inter_matrix_status()); // load_inter_quant_mat + if (get_inter_matrix_status()) { bs_put_matrix(bs, get_inter_matrix()); } } + if (vol_ver_id != 1) { + if (pParam->m_quarterpel) + BitstreamPutBit(bs, 1); // quarterpel + else + BitstreamPutBit(bs, 0); // no quarterpel + } + BitstreamPutBit(bs, 1); // complexity_estimation_disable BitstreamPutBit(bs, 1); // resync_marker_disable BitstreamPutBit(bs, 0); // data_partitioned + + if (vol_ver_id != 1) + { + BitstreamPutBit(bs, 0); // newpred_enable + + BitstreamPutBit(bs, (pParam->global & XVID_GLOBAL_REDUCED)?1:0); + /* reduced_resolution_vop_enabled */ + } + BitstreamPutBit(bs, 0); // scalability + + /* fake divx5 id, to ensure compatibility with divx5 decoder */ +#define DIVX5_ID "DivX501b481p" + if (pParam->max_bframes > 0 && (pParam->global & XVID_GLOBAL_PACKED)) { + BitstreamWriteUserData(bs, DIVX5_ID, strlen(DIVX5_ID)); + } + + /* xvid id */ +#define XVID_ID "XviD" XVID_BS_VERSION + BitstreamWriteUserData(bs, XVID_ID, strlen(XVID_ID)); } /* write vop header - - NOTE: doesnt handle bother with time_base & time_inc - time_base = n seconds since last resync (eg. last iframe) - time_inc = nth of a second since last resync - (decoder uses these values to determine precise time since last resync) */ -void BitstreamWriteVopHeader(Bitstream * const bs, - const MBParam * pParam, - const FRAMEINFO * frame) +void +BitstreamWriteVopHeader( + Bitstream * const bs, + const MBParam * pParam, + const FRAMEINFO * const frame, + int vop_coded) { -#ifdef BFRAMES uint32_t i; -#endif - BitstreamPad(bs); - BitstreamPutBits(bs, VOP_START_CODE, 32); - BitstreamPutBits(bs, frame->coding_type, 2); - - // time_base = 0 write n x PutBit(1), PutBit(0) -#ifdef BFRAMES - for (i = 0; i < frame->seconds; i++) - { +// BitstreamPad(bs); +/* no padding here, anymore. You have to make sure that you are + byte aligned, and that always 1-8 padding bits have been written */ + + BitstreamPutBits(bs, VOP_START_CODE, 32); + + BitstreamPutBits(bs, frame->coding_type, 2); + DPRINTF(DPRINTF_HEADER, "coding_type = %i", frame->coding_type); + + for (i = 0; i < frame->seconds; i++) { BitstreamPutBit(bs, 1); } BitstreamPutBit(bs, 0); -#else - BitstreamPutBits(bs, 0, 1); -#endif WRITE_MARKER(); // time_increment: value=nth_of_sec, nbits = log2(resolution) -#ifdef BFRAMES - BitstreamPutBits(bs, frame->ticks, 5); - dprintf("[%i:%i] %c\n", frame->seconds, frame->ticks, frame->coding_type == I_VOP ? 'I' : frame->coding_type == P_VOP ? 'P' : 'B'); -#else - BitstreamPutBits(bs, 1, 1); -#endif + + BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); + /*DPRINTF("[%i:%i] %c", frame->seconds, frame->ticks, + frame->coding_type == I_VOP ? 'I' : frame->coding_type == + P_VOP ? 'P' : 'B');*/ WRITE_MARKER(); - BitstreamPutBits(bs, 1, 1); // vop_coded + if (!vop_coded) { + BitstreamPutBits(bs, 0, 1); + return; + } + + BitstreamPutBits(bs, 1, 1); // vop_coded - if (frame->coding_type != I_VOP) + if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) BitstreamPutBits(bs, frame->rounding_type, 1); - - BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold - if (frame->global_flags & XVID_INTERLACING) - { - BitstreamPutBit(bs, 1); // top field first - BitstreamPutBit(bs, 0); // alternate vertical scan + if ((pParam->global & XVID_GLOBAL_REDUCED)) + BitstreamPutBit(bs, (frame->global_flags & XVID_REDUCED)?1:0); + + BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold + + if (frame->global_flags & XVID_INTERLACING) { + BitstreamPutBit(bs, (frame->global_flags & XVID_TOPFIELDFIRST)); + BitstreamPutBit(bs, (frame->global_flags & XVID_ALTERNATESCAN)); } + + if (frame->coding_type == S_VOP) { + if (1) { // no_of_sprite_warping_points>=1 (we use 2!) + int k; + for (k=0;k<2;k++) + { + bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); // du[k] + WRITE_MARKER(); + + bs_put_spritetrajectory(bs, frame->warp.duv[k].y ); // dv[k] + WRITE_MARKER(); - BitstreamPutBits(bs, frame->quant, 5); // quantizer + if (pParam->m_quarterpel) + { + DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", k, frame->warp.duv[k].x/2, frame->warp.duv[k].y/2); + } + else + { + DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", k, frame->warp.duv[k].x, frame->warp.duv[k].y); + } + } + } + } + + DPRINTF(DPRINTF_HEADER, "quant = %i", frame->quant); + + BitstreamPutBits(bs, frame->quant, 5); // quantizer + if (frame->coding_type != I_VOP) - BitstreamPutBits(bs, frame->fcode, 3); // forward_fixed_code + BitstreamPutBits(bs, frame->fcode, 3); // forward_fixed_code if (frame->coding_type == B_VOP) - BitstreamPutBits(bs, frame->bcode, 3); // backward_fixed_code + BitstreamPutBits(bs, frame->bcode, 3); // backward_fixed_code + +} + +void +BitstreamWriteUserData(Bitstream * const bs, + uint8_t * data, + const int length) +{ + int i; + + BitstreamPad(bs); + BitstreamPutBits(bs, USERDATA_START_CODE, 32); + + for (i = 0; i < length; i++) { + BitstreamPutBits(bs, data[i], 8); + } }