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vlc-2-2
Commit 385368db authored by Jean-Marc Dressler's avatar Jean-Marc Dressler
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Petites corrections de bug dans le motion compensation et le parsage des
blocks non intra.
parent 4dd00e65
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Showing with 17 additions and 229 deletions
src/video_parser/vpar_blocks.c
View file @ 385368db
......@@ -612,7 +612,7 @@ static __inline__ void InitMacroblock( vpar_thread_t * p_vpar,
* (2 - p_vpar->picture.b_frame_structure)
* p_vpar->sequence.i_chroma_mb_height;
p_vpar->mb.i_c_x %= p_vpar->sequence.i_chroma_width;
if( p_mb->b_motion_field = p_vpar->picture.b_motion_field )
if( (p_mb->b_motion_field = p_vpar->picture.b_motion_field) )
{
p_mb->i_motion_l_y--;
p_mb->i_motion_c_y--;
......@@ -689,7 +689,6 @@ static __inline__ void MacroblockModes( vpar_thread_t * p_vpar,
/* Special No-MC macroblock in P pictures (7.6.3.5). */
memset( p_vpar->slice.pppi_pmv, 0, 8*sizeof(int) );
memset( p_mb->pppi_motion_vectors, 0, 8*sizeof(int) );
p_vpar->mb.i_motion_type = MOTION_FRAME;
p_mb->ppi_field_select[0][0] = ( p_vpar->picture.i_current_structure == BOTTOM_FIELD );
}
......@@ -710,6 +709,7 @@ static __inline__ void MacroblockModes( vpar_thread_t * p_vpar,
p_vpar->mb.i_mv_format = ppi_mv_format[p_vpar->picture.b_frame_structure]
[p_vpar->mb.i_motion_type];
p_vpar->mb.b_dct_type = 0;
if( (p_vpar->picture.i_structure == FRAME_STRUCTURE) &&
(!p_vpar->picture.b_frame_pred_frame_dct) &&
......@@ -1178,6 +1178,7 @@ static void vpar_DecodeMPEG2Non( vpar_thread_t * p_vpar, macroblock_t * p_mb, in
int i_pos;
int i_run;
int i_level;
int i_quant_type;
boolean_t b_sign;
int * ppi_quant[2];
......@@ -1188,10 +1189,11 @@ static void vpar_DecodeMPEG2Non( vpar_thread_t * p_vpar, macroblock_t * p_mb, in
/* Determine whether it is luminance or not (chrominance) */
i_type = ( i_cc + 1 ) >> 1;
i_quant_type = (!i_type) || (p_vpar->sequence.i_chroma_format == CHROMA_420);
/* Give a pointer to the quantization matrices for intra blocks */
ppi_quant[0] = p_vpar->sequence.nonintra_quant.pi_matrix;
ppi_quant[1] = p_vpar->sequence.chroma_nonintra_quant.pi_matrix;
ppi_quant[1] = p_vpar->sequence.nonintra_quant.pi_matrix;
ppi_quant[0] = p_vpar->sequence.chroma_nonintra_quant.pi_matrix;
/* Decoding of the AC coefficients */
......@@ -1242,7 +1244,7 @@ static void vpar_DecodeMPEG2Non( vpar_thread_t * p_vpar, macroblock_t * p_mb, in
case DCT_EOB:
if( i_nc <= 0 )
{
p_mb->pf_idct[i_b] = vdec_SparseIDCT;
p_mb->pf_idct[i_b] = vdec_IDCT;//vdec_SparseIDCT;
p_mb->pi_sparse_pos[i_b] = i_coef;
}
else
......@@ -1265,9 +1267,8 @@ if( i_parse >= 64 )
}
i_pos = pi_scan[p_vpar->picture.b_alternate_scan][i_parse];
i_level = ( i_level *
p_vpar->slice.i_quantizer_scale *
ppi_quant[i_type][i_pos] ) >> 5;
i_level = ( ((i_level << 1) + 1) * p_vpar->slice.i_quantizer_scale
* ppi_quant[i_quant_type][i_pos] ) >> 5;
p_mb->ppi_blocks[i_b][i_pos] = b_sign ? -i_level : i_level;
}
fprintf( stderr, "Non intra MPEG2 end (%d)\n", i_b );
......@@ -1302,11 +1303,11 @@ static void vpar_DecodeMPEG2Intra( vpar_thread_t * p_vpar, macroblock_t * p_mb,
/* Determine whether it is luminance or not (chrominance) */
i_type = ( i_cc + 1 ) >> 1;
i_quant_type = i_type | (p_vpar->sequence.i_chroma_format == CHROMA_420);
i_quant_type = (!i_type) | (p_vpar->sequence.i_chroma_format == CHROMA_420);
/* Give a pointer to the quantization matrices for intra blocks */
ppi_quant[0] = p_vpar->sequence.intra_quant.pi_matrix;
ppi_quant[1] = p_vpar->sequence.chroma_intra_quant.pi_matrix;
ppi_quant[1] = p_vpar->sequence.intra_quant.pi_matrix;
ppi_quant[0] = p_vpar->sequence.chroma_intra_quant.pi_matrix;
#if 0
/* Decoding of the DC intra coefficient */
......@@ -1477,7 +1478,7 @@ static void vpar_DecodeMPEG2Intra( vpar_thread_t * p_vpar, macroblock_t * p_mb,
case DCT_EOB:
if( i_nc <= 1 )
{
p_mb->pf_idct[i_b] = vdec_SparseIDCT;
p_mb->pf_idct[i_b] = vdec_IDCT;//vdec_SparseIDCT;
p_mb->pi_sparse_pos[i_b] = i_coef;
}
else
......
src/video_parser/vpar_motion.c
View file @ 385368db
......@@ -206,6 +206,8 @@ void vpar_MPEG2MotionVector( vpar_thread_t * p_vpar, macroblock_t * p_mb, int i_
vpar_MotionVector( p_vpar, p_mb, 0, i_s, 0 );
p_vpar->slice.pppi_pmv[1][i_s][0] = p_vpar->slice.pppi_pmv[0][i_s][0];
p_vpar->slice.pppi_pmv[1][i_s][1] = p_vpar->slice.pppi_pmv[0][i_s][1];
p_mb->pppi_motion_vectors[1][i_s][0] = p_vpar->slice.pppi_pmv[0][i_s][0];
p_mb->pppi_motion_vectors[1][i_s][1] = p_vpar->slice.pppi_pmv[0][i_s][1];
}
else
{
......@@ -216,219 +218,4 @@ void vpar_MPEG2MotionVector( vpar_thread_t * p_vpar, macroblock_t * p_mb, int i_
}
}
#if 0
/*****************************************************************************
* vpar_motion.c : motion vectors parsing
* (c)1999 VideoLAN
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/uio.h>
#include <X11/Xlib.h>
#include <X11/extensions/XShm.h>
#include "config.h"
#include "common.h"
#include "mtime.h"
#include "vlc_thread.h"
#include "intf_msg.h"
#include "debug.h" /* ?? temporaire, requis par netlist.h */
#include "input.h"
#include "input_netlist.h"
#include "decoder_fifo.h"
#include "video.h"
#include "video_output.h"
#include "vdec_idct.h"
#include "video_decoder.h"
#include "vdec_motion.h"
#include "vpar_blocks.h"
#include "vpar_headers.h"
#include "video_fifo.h"
#include "vpar_synchro.h"
#include "video_parser.h"
#include "vpar_motion.h"
/*
* Local prototypes
*/
/****************************************************************************
* vpar_MotionCode : Parse the next motion code
****************************************************************************/
static __inline__ int vpar_MotionCode( vpar_thread_t * p_vpar )
{
int i_code;
static lookup_t pl_mv_tab0[8] =
{ {-1,0}, {3,3}, {2,2}, {2,2}, {1,1}, {1,1}, {1,1}, {1,1} };
/* Table B-10, motion_code, codes 0000011 ... 000011x */
static lookup_t pl_mv_tab1[8] =
{ {-1,0}, {-1,0}, {-1,0}, {7,6}, {6,6}, {5,6}, {4,5}, {4,5} };
/* Table B-10, motion_code, codes 0000001100 ... 000001011x */
static lookup_t pl_mv_tab2[12] = {
{16,9}, {15,9}, {14,9}, {13,9},
{12,9}, {11,9}, {10,8}, {10,8},
{9,8}, {9,8}, {8,8}, {8,8} };
if( GetBits(&p_vpar->bit_stream, 1) )
{
return 0;
}
if( (i_code = ShowBits(&p_vpar->bit_stream, 9)) >= 64 )
{
i_code >>= 6;
RemoveBits( &p_vpar->bit_stream, pl_mv_tab0[i_code].i_length );
return( GetBits(&p_vpar->bit_stream, 1) ? -pl_mv_tab0[i_code].i_value : pl_mv_tab0[i_code].i_value );
}
if( i_code >= 24 )
{
i_code >>= 3;
RemoveBits( &p_vpar->bit_stream, pl_mv_tab1[i_code].i_length );
return( GetBits(&p_vpar->bit_stream, 1) ? -pl_mv_tab1[i_code].i_value : pl_mv_tab1[i_code].i_value );
}
if( (i_code -= 12) < 0 )
{
p_vpar->picture.b_error = 1;
intf_DbgMsg( "vpar debug: Invalid motion_vector code\n" );
return 0;
}
RemoveBits( &p_vpar->bit_stream, pl_mv_tab2[i_code].i_length );
return( GetBits(&p_vpar->bit_stream, 1) ? -pl_mv_tab2[i_code].i_value : pl_mv_tab2[i_code].i_value );
}
/****************************************************************************
* vpar_DecodeMotionVector : decode a motion_vector
****************************************************************************/
static __inline__ void vpar_DecodeMotionVector( int * pi_prediction, int i_r_size,
int i_motion_code, int i_motion_residual, int i_full_pel )
{
int i_limit, i_vector;
/* ISO/IEC 13818-1 section 7.6.3.1 */
i_limit = 16 << i_r_size;
i_vector = *pi_prediction >> i_full_pel;
if( i_motion_code > 0 )
{
i_vector += ((i_motion_code-1) << i_r_size) + i_motion_residual + 1;
if( i_vector >= i_limit )
i_vector -= i_limit + i_limit;
}
else if( i_motion_code < 0 )
{
i_vector -= ((-i_motion_code-1) << i_r_size) + i_motion_residual + 1;
if( i_vector < -i_limit )
i_vector += i_limit + i_limit;
}
*pi_prediction = i_vector << i_full_pel;
}
/****************************************************************************
* vpar_MotionVector : Parse the next motion_vector field
****************************************************************************/
void vpar_MotionVector( vpar_thread_t * p_vpar, macroblock_t * p_mb, int i_r,
int i_s, int i_full_pel )
{
int i_motion_code, i_motion_residual;
int i_r_size;
i_r_size = p_vpar->picture.ppi_f_code[i_s][0]-1;
i_motion_code = vpar_MotionCode( p_vpar );
i_motion_residual = (i_r_size != 0 && i_motion_code != 0) ?
GetBits( &p_vpar->bit_stream, i_r_size) : 0;
vpar_DecodeMotionVector( &p_vpar->slice.pppi_pmv[i_r][i_s][0], i_r_size,
i_motion_code, i_motion_residual, i_full_pel );
p_mb->pppi_motion_vectors[i_r][i_s][0] = p_vpar->slice.pppi_pmv[i_r][i_s][0];
if( p_vpar->mb.b_dmv )
{
if( GetBits(&p_vpar->bit_stream, 1) )
{
p_mb->pi_dm_vector[0] = GetBits( &p_vpar->bit_stream, 1 ) ? -1 : 1;
}
else
{
p_mb->pi_dm_vector[0] = 0;
}
}
i_r_size = p_vpar->picture.ppi_f_code[i_s][1]-1;
i_motion_code = vpar_MotionCode( p_vpar );
i_motion_residual = (i_r_size != 0 && i_motion_code != 0) ?
GetBits( &p_vpar->bit_stream, i_r_size) : 0;
if( (p_vpar->mb.i_mv_format == MOTION_FIELD) && (p_vpar->picture.b_frame_structure) )
p_vpar->slice.pppi_pmv[i_r][i_s][1] >>= 1;
vpar_DecodeMotionVector( &p_vpar->slice.pppi_pmv[i_r][i_s][1], i_r_size,
i_motion_code, i_motion_residual, i_full_pel );
if( (p_vpar->mb.i_mv_format == MOTION_FIELD) && (p_vpar->picture.b_frame_structure) )
p_vpar->slice.pppi_pmv[i_r][i_s][1] <<= 1;
p_mb->pppi_motion_vectors[i_r][i_s][1] = p_vpar->slice.pppi_pmv[i_r][i_s][1];
if( p_vpar->mb.b_dmv )
{
if( GetBits(&p_vpar->bit_stream, 1) )
{
p_mb->pi_dm_vector[1] = GetBits( &p_vpar->bit_stream, 1 ) ? -1 : 1;
}
else
{
p_mb->pi_dm_vector[1] = 0;
}
}
}
/*****************************************************************************
* vpar_MPEG1MotionVector : Parse the next MPEG-1 motion vectors
*****************************************************************************/
void vpar_MPEG1MotionVector( vpar_thread_t * p_vpar, macroblock_t * p_mb, int i_s )
{
vpar_MotionVector( p_vpar, p_mb, 0, i_s, p_vpar->picture.pb_full_pel_vector[i_s] );
}
/*****************************************************************************
* vpar_MPEG2MotionVector : Parse the next MPEG-2 motion_vectors field
*****************************************************************************/
void vpar_MPEG2MotionVector( vpar_thread_t * p_vpar, macroblock_t * p_mb, int i_s )
{
if( p_vpar->mb.i_mv_count == 1 )
{
if( p_vpar->mb.i_mv_format == MOTION_FIELD && !p_vpar->mb.b_dmv )
{
p_mb->ppi_field_select[0][i_s] = p_mb->ppi_field_select[1][i_s]
= GetBits( &p_vpar->bit_stream, 1 );
}
vpar_MotionVector( p_vpar, p_mb, 0, i_s, 0 );
p_vpar->slice.pppi_pmv[1][i_s][0] = p_vpar->slice.pppi_pmv[0][i_s][0];
p_vpar->slice.pppi_pmv[1][i_s][1] = p_vpar->slice.pppi_pmv[0][i_s][1];
}
else
{
p_mb->ppi_field_select[0][i_s] = GetBits( &p_vpar->bit_stream, 1 );
vpar_MotionVector( p_vpar, p_mb, 0, i_s, 0 );
p_mb->ppi_field_select[1][i_s] = GetBits( &p_vpar->bit_stream, 1 );
vpar_MotionVector( p_vpar, p_mb, 1, i_s, 0 );
}
}
#endif
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