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* * |
* * |
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* Revision history: * |
* Revision history: * |
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* * |
* * |
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* 28.10.2002 GMC support - gruel * |
* 05.01.2003 GMC support - gruel * |
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* 04.10.2002 qpel support - Isibaar * |
* 04.10.2002 qpel support - Isibaar * |
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* 11.07.2002 add VOP width & height return to dec when dec->width * |
* 11.07.2002 add VOP width & height return to dec when dec->width * |
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* or dec->height is 0 (for use in examples/ex1.c) * |
* or dec->height is 0 (for use in examples/ex1.c) * |
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#include <string.h> |
#include <string.h> |
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#include <stdio.h> |
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72 |
#include "bitstream.h" |
#include "bitstream.h" |
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#include "zigzag.h" |
#include "zigzag.h" |
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#include "../quant/quant_matrix.h" |
#include "../quant/quant_matrix.h" |
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log2bin(uint32_t value) |
log2bin(uint32_t value) |
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{ |
{ |
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/* Changed by Chenm001 */ |
/* Changed by Chenm001 */ |
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#ifndef WIN32 |
#if !defined(_MSC_VER) |
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int n = 0; |
int n = 0; |
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while (value) { |
while (value) { |
173 |
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174 |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
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{ |
{ |
176 |
*quant = BitstreamGetBits(bs, 5); /* quant_scale */ |
*quant = BitstreamGetBits(bs, dec->quant_bits); /* quant_scale */ |
177 |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
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} |
} |
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230 |
if (coding_type == B_VOP && fcode_backward) |
if (coding_type == B_VOP && fcode_backward) |
231 |
{ |
{ |
232 |
*fcode_backward = BitstreamGetBits(bs, 3); |
*fcode_backward = BitstreamGetBits(bs, 3); |
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DPRINTF(DPRINTF_HEADER,"fcode_backward %i", fcode_backward); |
DPRINTF(DPRINTF_HEADER,"fcode_backward %i", *fcode_backward); |
234 |
} |
} |
235 |
} |
} |
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326 |
{ |
{ |
327 |
ESTIMATION * e = &dec->estimation; |
ESTIMATION * e = &dec->estimation; |
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329 |
if (e->method == 0) |
if (e->method == 0 || e->method == 1) |
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{ |
{ |
331 |
if (coding_type == I_VOP) { |
if (coding_type == I_VOP) { |
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if (e->opaque) BitstreamSkip(bs, 8); /* dcecs_opaque */ |
if (e->opaque) BitstreamSkip(bs, 8); /* dcecs_opaque */ |
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uint32_t * fcode_forward, |
uint32_t * fcode_forward, |
433 |
uint32_t * fcode_backward, |
uint32_t * fcode_backward, |
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uint32_t * intra_dc_threshold, |
uint32_t * intra_dc_threshold, |
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VECTOR * gmc_mv) |
WARPPOINTS *gmc_warp) |
436 |
{ |
{ |
437 |
uint32_t vol_ver_id; |
uint32_t vol_ver_id; |
438 |
uint32_t coding_type; |
uint32_t coding_type; |
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DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
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} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
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int visobj_ver_id; |
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DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
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BitstreamSkip(bs, 32); // visual_object_start_code |
BitstreamSkip(bs, 32); // visual_object_start_code |
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if (BitstreamGetBit(bs)) // is_visual_object_identified |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
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{ |
{ |
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vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
visobj_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
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DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
DPRINTF(DPRINTF_HEADER,"visobj_ver_id %i", visobj_ver_id); |
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BitstreamSkip(bs, 3); // visual_object_priority |
BitstreamSkip(bs, 3); // visual_object_priority |
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} else { |
} else { |
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vol_ver_id = 1; |
visobj_ver_id = 1; |
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} |
} |
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if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
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BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
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READ_MARKER(); |
READ_MARKER(); |
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} |
} |
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}else{ |
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dec->low_delay = dec->low_delay_default; |
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} |
} |
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dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
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READ_MARKER(); |
READ_MARKER(); |
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seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
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DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours); |
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours,minutes,seconds); |
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} |
} |
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BitstreamSkip(bs, 1); // closed_gov |
BitstreamSkip(bs, 1); // closed_gov |
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BitstreamSkip(bs, 1); // broken_link |
BitstreamSkip(bs, 1); // broken_link |
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dec->time_bp = (uint32_t) |
dec->time_bp = (uint32_t) |
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(dec->time_inc_resolution + dec->last_non_b_time - dec->time)%dec->time_inc_resolution; |
(dec->time_inc_resolution + dec->last_non_b_time - dec->time)%dec->time_inc_resolution; |
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} |
} |
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DPRINTF(DPRINTF_HEADER,"time_pp=%i", dec->time_pp); |
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DPRINTF(DPRINTF_HEADER,"time_bp=%i", dec->time_bp); |
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READ_MARKER(); |
READ_MARKER(); |
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} |
} |
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READ_MARKER(); |
READ_MARKER(); |
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gmc_mv[i].x = x; |
gmc_warp->duv[i].x = x; |
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gmc_mv[i].y = y; |
gmc_warp->duv[i].y = y; |
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DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); |
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} |
} |
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const MBParam * pParam, |
const MBParam * pParam, |
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const FRAMEINFO * const frame) |
const FRAMEINFO * const frame) |
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{ |
{ |
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static const unsigned int vo_id = 0; |
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static const unsigned int vol_id = 0; |
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int vol_ver_id=1; |
int vol_ver_id=1; |
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int profile = 0x03; /* simple profile/level 3 */ |
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if ( (pParam->m_quarterpel) || (frame->global_flags & XVID_GMC) ) |
if ( pParam->m_quarterpel || (frame->global_flags & XVID_GMC) || |
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(pParam->global & XVID_GLOBAL_REDUCED)) |
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vol_ver_id = 2; |
vol_ver_id = 2; |
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if ((pParam->global & XVID_GLOBAL_REDUCED)) |
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profile = 0x93; /* advanced realtime simple profile/level 3 */ |
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if (pParam->m_quarterpel || (frame->global_flags & XVID_GMC)) |
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profile = 0xf3; /* advanced simple profile/level 2 */ |
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// visual_object_sequence_start_code |
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BitstreamPad(bs); |
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BitstreamPutBits(bs, VISOBJSEQ_START_CODE, 32); |
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BitstreamPutBits(bs, profile, 8); |
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// visual_object_start_code |
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BitstreamPad(bs); |
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BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
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BitstreamPutBits(bs, 0, 1); // is_visual_object_identifier |
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BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); // visual_object_type |
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// video object_start_code & vo_id |
// video object_start_code & vo_id |
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BitstreamPad(bs); |
BitstreamPad(bs); |
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BitstreamPutBits(bs, VO_START_CODE, 27); |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
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BitstreamPutBits(bs, 0, 5); |
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// video_object_layer_start_code & vol_id |
// video_object_layer_start_code & vol_id |
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BitstreamPutBits(bs, VOL_START_CODE, 28); |
BitstreamPutBits(bs, VIDOBJLAY_START_CODE|(vol_id&0x4), 32); |
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BitstreamPutBits(bs, 0, 4); |
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BitstreamPutBit(bs, 0); // random_accessible_vol |
BitstreamPutBit(bs, 0); // random_accessible_vol |
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BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
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if (vol_ver_id != 1) |
if (vol_ver_id != 1) |
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{ |
{ |
1250 |
BitstreamPutBit(bs, 0); // newpred_enable |
BitstreamPutBit(bs, 0); // newpred_enable |
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BitstreamPutBit(bs, 0); // reduced_resolution_vop_enabled |
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BitstreamPutBit(bs, (pParam->global & XVID_GLOBAL_REDUCED)?1:0); |
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/* reduced_resolution_vop_enabled */ |
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} |
} |
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BitstreamPutBit(bs, 0); // scalability |
BitstreamPutBit(bs, 0); // scalability |
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/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
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#define DIVX5_ID "DivX501b481p" |
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if (pParam->max_bframes > 0 && (pParam->global & XVID_GLOBAL_PACKED)) { |
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BitstreamWriteUserData(bs, DIVX5_ID, strlen(DIVX5_ID)); |
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} |
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/* xvid id */ |
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#define XVID_ID "XviD" XVID_BS_VERSION |
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BitstreamWriteUserData(bs, XVID_ID, strlen(XVID_ID)); |
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} |
} |
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write vop header |
write vop header |
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*/ |
*/ |
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void |
void |
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BitstreamWriteVopHeader(Bitstream * const bs, |
BitstreamWriteVopHeader( |
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Bitstream * const bs, |
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const MBParam * pParam, |
const MBParam * pParam, |
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const FRAMEINFO * const frame, |
const FRAMEINFO * const frame, |
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int vop_coded) |
int vop_coded) |
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if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
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BitstreamPutBits(bs, frame->rounding_type, 1); |
BitstreamPutBits(bs, frame->rounding_type, 1); |
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if ((pParam->global & XVID_GLOBAL_REDUCED)) |
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BitstreamPutBit(bs, (frame->global_flags & XVID_REDUCED)?1:0); |
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BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
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if (frame->global_flags & XVID_INTERLACING) { |
if (frame->global_flags & XVID_INTERLACING) { |
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} |
} |
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if (frame->coding_type == S_VOP) { |
if (frame->coding_type == S_VOP) { |
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if (1) { // no_of_sprite_warping_points>=1 |
if (1) { // no_of_sprite_warping_points>=1 (we use 2!) |
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if (pParam->m_quarterpel) |
int k; |
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bs_put_spritetrajectory(bs, frame->GMC_MV.x/2 ); // du[0] |
for (k=0;k<2;k++) |
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else |
{ |
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bs_put_spritetrajectory(bs, frame->GMC_MV.x ); // du[0] |
bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); // du[k] |
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WRITE_MARKER(); |
WRITE_MARKER(); |
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if (pParam->m_quarterpel) |
bs_put_spritetrajectory(bs, frame->warp.duv[k].y ); // dv[k] |
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bs_put_spritetrajectory(bs, frame->GMC_MV.y/2 ); // dv[0] |
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else |
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bs_put_spritetrajectory(bs, frame->GMC_MV.y ); // dv[0] |
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WRITE_MARKER(); |
WRITE_MARKER(); |
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if (pParam->m_quarterpel) |
if (pParam->m_quarterpel) |
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{ |
{ |
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DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", 0, frame->GMC_MV.x/2, frame->GMC_MV.y/2); |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", k, frame->warp.duv[k].x/2, frame->warp.duv[k].y/2); |
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} |
} |
1339 |
else |
else |
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{ |
{ |
1341 |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", 0, frame->GMC_MV.x, frame->GMC_MV.y); |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", k, frame->warp.duv[k].x, frame->warp.duv[k].y); |
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} |
} |
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} |
} |
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/* GMC is halfpel in bitstream, even though GMC_MV was pseudo-qpel (2*halfpel) */ |
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if (2) { // no_of_sprite_warping_points>=2 (for DivX5 compat) |
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bs_put_spritetrajectory(bs, 0 ); |
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WRITE_MARKER(); |
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bs_put_spritetrajectory(bs, 0 ); |
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WRITE_MARKER(); |
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1344 |
} |
} |
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// no support for brightness_change! |
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1345 |
} |
} |
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