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#include <string.h> |
#include <string.h> |
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#include <stdio.h> |
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#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) { |
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if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
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{ |
{ |
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*quant = BitstreamGetBits(bs, 5); /* quant_scale */ |
*quant = BitstreamGetBits(bs, dec->quant_bits); /* quant_scale */ |
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DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
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} |
} |
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{ |
{ |
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ESTIMATION * e = &dec->estimation; |
ESTIMATION * e = &dec->estimation; |
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if (e->method == 0) |
if (e->method == 0 || e->method == 1) |
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{ |
{ |
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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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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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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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} else if (start_code == USERDATA_START_CODE) { |
} else if (start_code == USERDATA_START_CODE) { |
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char tmp[256]; |
char tmp[256]; |
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int i, version, build, packed; |
int i, version, build; |
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char packed; |
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BitstreamSkip(bs, 32); // user_data_start_code |
BitstreamSkip(bs, 32); // user_data_start_code |
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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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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)) |
1123 |
vol_ver_id = 2; |
vol_ver_id = 2; |
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1125 |
// 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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1128 |
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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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{ |
{ |
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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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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) { |