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JD2022-TU1/main/extern/Camcam/LIBS/X264 - Lib/encoder/encoder.c

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/*****************************************************************************
* x264: h264 encoder
*****************************************************************************
* Copyright (C) 2003 Laurent Aimar
* $Id: encoder.c,v 1.1 2004/06/03 19:27:08 fenrir Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* This program is CC_free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "CC_alloc.h"
#include "common/common.h"
#include "common/cpu.h"
#include "set.h"
#include "analyse.h"
#include "ratecontrol.h"
#include "macroblock.h"
#if VISUALIZE
#include "common/visualize.h"
#endif
//#define DEBUG_MB_TYPE
//#define DEBUG_DUMP_FRAME
//#define DEBUG_BENCHMARK
#ifdef DEBUG_BENCHMARK
static int64_t i_mtime_encode_frame = 0;
static int64_t i_mtime_analyse = 0;
static int64_t i_mtime_encode = 0;
static int64_t i_mtime_write = 0;
static int64_t i_mtime_filter = 0;
#define TIMER_START( d ) \
{ \
int64_t d##start = x264_mdate();
#define TIMER_STOP( d ) \
d += x264_mdate() - d##start;\
}
#else
#define TIMER_START( d )
#define TIMER_STOP( d )
#endif
#define NALU_OVERHEAD 5 // startcode + NAL type costs 5 bytes per frame
/****************************************************************************
*
******************************* x264 libs **********************************
*
****************************************************************************/
static float x264_psnr( int64_t i_sqe, int64_t i_size )
{
double f_mse = (double)i_sqe / ((double)65025.0 * (double)i_size);
if( f_mse <= 0.0000000001 ) /* Max 100dB */
return 100;
return (float)(-10.0 * log( f_mse ) / log( 10.0 ));
}
#ifdef DEBUG_DUMP_FRAME
static void x264_frame_dump( x264_t *h, x264_frame_t *fr, char *name )
{
FILE *f = fopen( name, "r+b" );
int i, y;
if( !f )
return;
/* Write the frame in display order */
fseek( f, fr->i_frame * h->param.i_height * h->param.i_width * 3 / 2, SEEK_SET );
for( i = 0; i < fr->i_plane; i++ )
{
for( y = 0; y < h->param.i_height / ( i == 0 ? 1 : 2 ); y++ )
{
fwrite( &fr->plane[i][y*fr->i_stride[i]], 1, h->param.i_width / ( i == 0 ? 1 : 2 ), f );
}
}
fclose( f );
}
#endif
/* Fill "default" values */
static void x264_slice_header_init( x264_t *h, x264_slice_header_t *sh,
x264_sps_t *sps, x264_pps_t *pps,
int i_type, int i_idr_pic_id, int i_frame, int i_qp )
{
x264_param_t *param = &h->param;
int i;
/* First we fill all field */
sh->sps = sps;
sh->pps = pps;
sh->i_type = i_type;
sh->i_first_mb = 0;
sh->i_last_mb = h->sps->i_mb_width * h->sps->i_mb_height;
sh->i_pps_id = pps->i_id;
sh->i_frame_num = i_frame;
sh->b_mbaff = h->param.b_interlaced;
sh->b_field_pic = 0; /* no field support for now */
sh->b_bottom_field = 0; /* not yet used */
sh->i_idr_pic_id = i_idr_pic_id;
/* poc stuff, fixed later */
sh->i_poc_lsb = 0;
sh->i_delta_poc_bottom = 0;
sh->i_delta_poc[0] = 0;
sh->i_delta_poc[1] = 0;
sh->i_redundant_pic_cnt = 0;
if( !h->mb.b_direct_auto_read )
{
if( h->mb.b_direct_auto_write )
sh->b_direct_spatial_mv_pred = ( h->stat.i_direct_score[1] > h->stat.i_direct_score[0] );
else
sh->b_direct_spatial_mv_pred = ( param->analyse.i_direct_mv_pred == X264_DIRECT_PRED_SPATIAL );
}
/* else b_direct_spatial_mv_pred was read from the 2pass statsfile */
sh->b_num_ref_idx_override = 0;
sh->i_num_ref_idx_l0_active = 1;
sh->i_num_ref_idx_l1_active = 1;
sh->b_ref_pic_list_reordering_l0 = h->b_ref_reorder[0];
sh->b_ref_pic_list_reordering_l1 = h->b_ref_reorder[1];
/* If the ref list isn't in the default order, construct reordering header */
/* List1 reordering isn't needed yet */
if( sh->b_ref_pic_list_reordering_l0 )
{
int pred_frame_num = i_frame;
for( i = 0; i < h->i_ref0; i++ )
{
int diff = h->fref0[i]->i_frame_num - pred_frame_num;
if( diff == 0 )
x264_log( h, X264_LOG_ERROR, "diff frame num == 0\n" );
sh->ref_pic_list_order[0][i].idc = ( diff > 0 );
sh->ref_pic_list_order[0][i].arg = abs( diff ) - 1;
pred_frame_num = h->fref0[i]->i_frame_num;
}
}
sh->i_cabac_init_idc = param->i_cabac_init_idc;
sh->i_qp = i_qp;
sh->i_qp_delta = i_qp - pps->i_pic_init_qp;
sh->b_sp_for_swidth = 0;
sh->i_qs_delta = 0;
/* If effective qp <= 15, deblocking would have no effect anyway */
if( param->b_deblocking_filter
&& ( h->mb.b_variable_qp
|| 15 < i_qp + 2 * X264_MAX(param->i_deblocking_filter_alphac0, param->i_deblocking_filter_beta) ) )
{
sh->i_disable_deblocking_filter_idc = 0;
}
else
{
sh->i_disable_deblocking_filter_idc = 1;
}
sh->i_alpha_c0_offset = param->i_deblocking_filter_alphac0 << 1;
sh->i_beta_offset = param->i_deblocking_filter_beta << 1;
}
static void x264_slice_header_write( bs_t *s, x264_slice_header_t *sh, int i_nal_ref_idc )
{
int i;
if( sh->b_mbaff )
{
assert( sh->i_first_mb % (2*sh->sps->i_mb_width) == 0 );
bs_write_ue( s, sh->i_first_mb >> 1 );
}
else
bs_write_ue( s, sh->i_first_mb );
bs_write_ue( s, sh->i_type + 5 ); /* same type things */
bs_write_ue( s, sh->i_pps_id );
bs_write( s, sh->sps->i_log2_max_frame_num, sh->i_frame_num );
if( !sh->sps->b_frame_mbs_only )
{
bs_write1( s, sh->b_field_pic );
if ( sh->b_field_pic )
bs_write1( s, sh->b_bottom_field );
}
if( sh->i_idr_pic_id >= 0 ) /* NAL IDR */
{
bs_write_ue( s, sh->i_idr_pic_id );
}
if( sh->sps->i_poc_type == 0 )
{
bs_write( s, sh->sps->i_log2_max_poc_lsb, sh->i_poc_lsb );
if( sh->pps->b_pic_order && !sh->b_field_pic )
{
bs_write_se( s, sh->i_delta_poc_bottom );
}
}
else if( sh->sps->i_poc_type == 1 && !sh->sps->b_delta_pic_order_always_zero )
{
bs_write_se( s, sh->i_delta_poc[0] );
if( sh->pps->b_pic_order && !sh->b_field_pic )
{
bs_write_se( s, sh->i_delta_poc[1] );
}
}
if( sh->pps->b_redundant_pic_cnt )
{
bs_write_ue( s, sh->i_redundant_pic_cnt );
}
if( sh->i_type == SLICE_TYPE_B )
{
bs_write1( s, sh->b_direct_spatial_mv_pred );
}
if( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP || sh->i_type == SLICE_TYPE_B )
{
bs_write1( s, sh->b_num_ref_idx_override );
if( sh->b_num_ref_idx_override )
{
bs_write_ue( s, sh->i_num_ref_idx_l0_active - 1 );
if( sh->i_type == SLICE_TYPE_B )
{
bs_write_ue( s, sh->i_num_ref_idx_l1_active - 1 );
}
}
}
/* ref pic list reordering */
if( sh->i_type != SLICE_TYPE_I )
{
bs_write1( s, sh->b_ref_pic_list_reordering_l0 );
if( sh->b_ref_pic_list_reordering_l0 )
{
for( i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
{
bs_write_ue( s, sh->ref_pic_list_order[0][i].idc );
bs_write_ue( s, sh->ref_pic_list_order[0][i].arg );
}
bs_write_ue( s, 3 );
}
}
if( sh->i_type == SLICE_TYPE_B )
{
bs_write1( s, sh->b_ref_pic_list_reordering_l1 );
if( sh->b_ref_pic_list_reordering_l1 )
{
for( i = 0; i < sh->i_num_ref_idx_l1_active; i++ )
{
bs_write_ue( s, sh->ref_pic_list_order[1][i].idc );
bs_write_ue( s, sh->ref_pic_list_order[1][i].arg );
}
bs_write_ue( s, 3 );
}
}
if( ( sh->pps->b_weighted_pred && ( sh->i_type == SLICE_TYPE_P || sh->i_type == SLICE_TYPE_SP ) ) ||
( sh->pps->b_weighted_bipred == 1 && sh->i_type == SLICE_TYPE_B ) )
{
/* FIXME */
}
if( i_nal_ref_idc != 0 )
{
if( sh->i_idr_pic_id >= 0 )
{
bs_write1( s, 0 ); /* no output of prior pics flag */
bs_write1( s, 0 ); /* long term reference flag */
}
else
{
bs_write1( s, 0 ); /* adaptive_ref_pic_marking_mode_flag */
}
}
if( sh->pps->b_cabac && sh->i_type != SLICE_TYPE_I )
{
bs_write_ue( s, sh->i_cabac_init_idc );
}
bs_write_se( s, sh->i_qp_delta ); /* slice qp delta */
if( sh->pps->b_deblocking_filter_control )
{
bs_write_ue( s, sh->i_disable_deblocking_filter_idc );
if( sh->i_disable_deblocking_filter_idc != 1 )
{
bs_write_se( s, sh->i_alpha_c0_offset >> 1 );
bs_write_se( s, sh->i_beta_offset >> 1 );
}
}
}
/****************************************************************************
*
****************************************************************************
****************************** External API*********************************
****************************************************************************
*
****************************************************************************/
static int x264_validate_parameters( x264_t *h )
{
if( h->param.i_width <= 0 || h->param.i_height <= 0 )
{
x264_log( h, X264_LOG_ERROR, "invalid width x height (%dx%d)\n",
h->param.i_width, h->param.i_height );
return -1;
}
if( h->param.i_width % 2 || h->param.i_height % 2 )
{
x264_log( h, X264_LOG_ERROR, "width or height not divisible by 2 (%dx%d)\n",
h->param.i_width, h->param.i_height );
return -1;
}
if( h->param.i_csp != X264_CSP_I420 )
{
x264_log( h, X264_LOG_ERROR, "invalid CSP (only I420 supported)\n" );
return -1;
}
if( h->param.i_threads == 0 )
h->param.i_threads = x264_cpu_num_processors();
h->param.i_threads = x264_clip3( h->param.i_threads, 1, X264_SLICE_MAX );
h->param.i_threads = X264_MIN( h->param.i_threads, (h->param.i_height + 15) >> (4 + h->param.b_interlaced) );
#ifndef HAVE_PTHREAD
if( h->param.i_threads > 1 )
{
x264_log( h, X264_LOG_WARNING, "not compiled with pthread support!\n");
x264_log( h, X264_LOG_WARNING, "multislicing anyway, but you won't see any speed gain.\n" );
}
#endif
if( h->param.b_interlaced )
{
if( h->param.analyse.i_me_method == X264_ME_ESA )
{
x264_log( h, X264_LOG_WARNING, "interlace + me=esa is not implemented\n" );
h->param.analyse.i_me_method = X264_ME_UMH;
}
if( h->param.analyse.i_direct_mv_pred > X264_DIRECT_PRED_SPATIAL )
{
x264_log( h, X264_LOG_WARNING, "interlace + direct=temporal is not implemented\n" );
h->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
}
}
if( h->param.rc.i_rc_method < 0 || h->param.rc.i_rc_method > 2 )
{
x264_log( h, X264_LOG_ERROR, "invalid RC method\n" );
return -1;
}
h->param.rc.i_rf_constant = x264_clip3( h->param.rc.i_rf_constant, 0, 51 );
h->param.rc.i_qp_constant = x264_clip3( h->param.rc.i_qp_constant, 0, 51 );
if( h->param.rc.i_rc_method == X264_RC_CRF )
h->param.rc.i_qp_constant = h->param.rc.i_rf_constant;
if( (h->param.rc.i_rc_method == X264_RC_CQP || h->param.rc.i_rc_method == X264_RC_CRF)
&& h->param.rc.i_qp_constant == 0 )
{
h->mb.b_lossless = 1;
h->param.i_cqm_preset = X264_CQM_FLAT;
h->param.psz_cqm_file = NULL;
h->param.rc.i_rc_method = X264_RC_CQP;
h->param.rc.f_ip_factor = 1;
h->param.rc.f_pb_factor = 1;
h->param.analyse.b_transform_8x8 = 0;
h->param.analyse.b_psnr = 0;
h->param.analyse.b_ssim = 0;
h->param.analyse.i_chroma_qp_offset = 0;
h->param.analyse.i_trellis = 0;
h->param.analyse.b_fast_pskip = 0;
h->param.analyse.i_noise_reduction = 0;
h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 1, 6 );
}
//VL
x264_ratecontrol_update( h );
//EVL
if( ( h->param.i_width % 16 || h->param.i_height % 16 ) && !h->mb.b_lossless )
{
x264_log( h, X264_LOG_WARNING,
"width or height not divisible by 16 (%dx%d), compression will suffer.\n",
h->param.i_width, h->param.i_height );
}
h->param.i_frame_reference = x264_clip3( h->param.i_frame_reference, 1, 16 );
if( h->param.i_keyint_max <= 0 )
h->param.i_keyint_max = 1;
h->param.i_keyint_min = x264_clip3( h->param.i_keyint_min, 1, h->param.i_keyint_max/2+1 );
h->param.i_bframe = x264_clip3( h->param.i_bframe, 0, X264_BFRAME_MAX );
h->param.i_bframe_bias = x264_clip3( h->param.i_bframe_bias, -90, 100 );
h->param.b_bframe_pyramid = h->param.b_bframe_pyramid && h->param.i_bframe > 1;
h->param.b_bframe_adaptive = h->param.b_bframe_adaptive && h->param.i_bframe > 0;
h->param.analyse.b_weighted_bipred = h->param.analyse.b_weighted_bipred && h->param.i_bframe > 0;
h->mb.b_direct_auto_write = h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO
&& h->param.i_bframe
&& ( h->param.rc.b_stat_write || !h->param.rc.b_stat_read );
h->param.i_deblocking_filter_alphac0 = x264_clip3( h->param.i_deblocking_filter_alphac0, -6, 6 );
h->param.i_deblocking_filter_beta = x264_clip3( h->param.i_deblocking_filter_beta, -6, 6 );
h->param.analyse.i_luma_deadzone[0] = x264_clip3( h->param.analyse.i_luma_deadzone[0], 0, 32 );
h->param.analyse.i_luma_deadzone[1] = x264_clip3( h->param.analyse.i_luma_deadzone[1], 0, 32 );
h->mb.i_luma_deadzone[0] = 32 - h->param.analyse.i_luma_deadzone[0];
h->mb.i_luma_deadzone[1] = 32 - h->param.analyse.i_luma_deadzone[1];
h->param.i_cabac_init_idc = x264_clip3( h->param.i_cabac_init_idc, 0, 2 );
if( h->param.i_cqm_preset < X264_CQM_FLAT || h->param.i_cqm_preset > X264_CQM_CUSTOM )
h->param.i_cqm_preset = X264_CQM_FLAT;
if( h->param.analyse.i_me_method < X264_ME_DIA ||
h->param.analyse.i_me_method > X264_ME_ESA )
h->param.analyse.i_me_method = X264_ME_HEX;
if( h->param.analyse.i_me_range < 4 )
h->param.analyse.i_me_range = 4;
if( h->param.analyse.i_me_range > 16 && h->param.analyse.i_me_method <= X264_ME_HEX )
h->param.analyse.i_me_range = 16;
h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 1, 7 );
h->param.analyse.b_bframe_rdo = h->param.analyse.b_bframe_rdo && h->param.analyse.i_subpel_refine >= 6;
h->param.analyse.b_mixed_references = h->param.analyse.b_mixed_references && h->param.i_frame_reference > 1;
h->param.analyse.inter &= X264_ANALYSE_PSUB16x16|X264_ANALYSE_PSUB8x8|X264_ANALYSE_BSUB16x16|
X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
h->param.analyse.intra &= X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
if( !(h->param.analyse.inter & X264_ANALYSE_PSUB16x16) )
h->param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
if( !h->param.analyse.b_transform_8x8 )
{
h->param.analyse.inter &= ~X264_ANALYSE_I8x8;
h->param.analyse.intra &= ~X264_ANALYSE_I8x8;
}
h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -12, 12);
if( !h->param.b_cabac )
h->param.analyse.i_trellis = 0;
h->param.analyse.i_trellis = x264_clip3( h->param.analyse.i_trellis, 0, 2 );
h->param.analyse.i_noise_reduction = x264_clip3( h->param.analyse.i_noise_reduction, 0, 1<<16 );
{
const x264_level_t *l = x264_levels;
while( l->level_idc != 0 && l->level_idc != h->param.i_level_idc )
l++;
if( l->level_idc == 0 )
{
x264_log( h, X264_LOG_ERROR, "invalid level_idc: %d\n", h->param.i_level_idc );
return -1;
}
if( h->param.analyse.i_mv_range <= 0 )
h->param.analyse.i_mv_range = l->mv_range;
else
h->param.analyse.i_mv_range = x264_clip3(h->param.analyse.i_mv_range, 32, 2048);
if( h->param.analyse.i_direct_8x8_inference < 0 )
h->param.analyse.i_direct_8x8_inference = l->direct8x8;
}
if( h->param.rc.f_qblur < 0 )
h->param.rc.f_qblur = 0;
if( h->param.rc.f_complexity_blur < 0 )
h->param.rc.f_complexity_blur = 0;
h->param.i_sps_id &= 31;
if( h->param.i_log_level < X264_LOG_INFO )
{
h->param.analyse.b_psnr = 0;
h->param.analyse.b_ssim = 0;
}
/* ensure the booleans are 0 or 1 so they can be used in math */
#define BOOLIFY(x) h->param.x = !!h->param.x
BOOLIFY( b_cabac );
BOOLIFY( b_deblocking_filter );
BOOLIFY( b_interlaced );
BOOLIFY( analyse.b_transform_8x8 );
BOOLIFY( analyse.i_direct_8x8_inference );
BOOLIFY( analyse.b_bidir_me );
BOOLIFY( analyse.b_chroma_me );
BOOLIFY( analyse.b_fast_pskip );
BOOLIFY( rc.b_stat_write );
BOOLIFY( rc.b_stat_read );
#undef BOOLIFY
return 0;
}
static void mbcmp_init( x264_t *h )
{
memcpy( h->pixf.mbcmp,
( h->mb.b_lossless || h->param.analyse.i_subpel_refine <= 1 ) ? h->pixf.sad : h->pixf.satd,
sizeof(h->pixf.mbcmp) );
}
/****************************************************************************
* x264_encoder_open:
****************************************************************************/
x264_t *x264_encoder_open ( x264_param_t *param )
{
x264_t *h = x264_malloc( sizeof( x264_t ) );
int i;
memset( h, 0, sizeof( x264_t ) );
/* Create a copy of param */
memcpy( &h->param, param, sizeof( x264_param_t ) );
if( x264_validate_parameters( h ) < 0 )
{
x264_free( h );
return NULL;
}
if( h->param.psz_cqm_file )
if( x264_cqm_parse_file( h, h->param.psz_cqm_file ) < 0 )
{
x264_free( h );
return NULL;
}
if( h->param.rc.psz_stat_out )
h->param.rc.psz_stat_out = _strdup( h->param.rc.psz_stat_out );
if( h->param.rc.psz_stat_in )
h->param.rc.psz_stat_in = _strdup( h->param.rc.psz_stat_in );
if( h->param.rc.psz_rc_eq )
h->param.rc.psz_rc_eq = _strdup( h->param.rc.psz_rc_eq );
/* VUI */
if( h->param.vui.i_sar_width > 0 && h->param.vui.i_sar_height > 0 )
{
int i_w = param->vui.i_sar_width;
int i_h = param->vui.i_sar_height;
x264_reduce_fraction( &i_w, &i_h );
while( i_w > 65535 || i_h > 65535 )
{
i_w /= 2;
i_h /= 2;
}
h->param.vui.i_sar_width = 0;
h->param.vui.i_sar_height = 0;
if( i_w == 0 || i_h == 0 )
{
x264_log( h, X264_LOG_WARNING, "cannot create valid sample aspect ratio\n" );
}
else
{
x264_log( h, X264_LOG_INFO, "using SAR=%d/%d\n", i_w, i_h );
h->param.vui.i_sar_width = i_w;
h->param.vui.i_sar_height = i_h;
}
}
x264_reduce_fraction( &h->param.i_fps_num, &h->param.i_fps_den );
/* Init x264_t */
h->out.i_nal = 0;
h->out.i_bitstream = (int) X264_MAX( 1000000, h->param.i_width * h->param.i_height * 1.7
* ( h->param.rc.i_rc_method == X264_RC_ABR ? pow( 0.5, h->param.rc.i_qp_min )
: pow( 0.5, h->param.rc.i_qp_constant ) * X264_MAX( 1, h->param.rc.f_ip_factor )));
h->out.p_bitstream = x264_malloc( h->out.i_bitstream );
h->i_frame = 0;
h->i_frame_num = 0;
h->i_idr_pic_id = 0;
h->sps = &h->sps_array[0];
x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
h->pps = &h->pps_array[0];
x264_pps_init( h->pps, h->param.i_sps_id, &h->param, h->sps);
x264_validate_levels( h );
x264_cqm_init( h );
h->mb.i_mb_count = h->sps->i_mb_width * h->sps->i_mb_height;
/* Init frames. */
h->frames.i_delay = h->param.i_bframe;
h->frames.i_max_ref0 = h->param.i_frame_reference;
h->frames.i_max_ref1 = h->sps->vui.i_num_reorder_frames;
h->frames.i_max_dpb = h->sps->vui.i_max_dec_frame_buffering + 1;
h->frames.b_have_lowres = !h->param.rc.b_stat_read
&& ( h->param.rc.i_rc_method == X264_RC_ABR
|| h->param.rc.i_rc_method == X264_RC_CRF
|| h->param.b_bframe_adaptive );
for( i = 0; i < X264_BFRAME_MAX + 3; i++ )
{
h->frames.current[i] = NULL;
h->frames.next[i] = NULL;
h->frames.unused[i] = NULL;
}
for( i = 0; i < 1 + h->frames.i_delay; i++ )
{
h->frames.unused[i] = x264_frame_new( h );
if( !h->frames.unused[i] )
return NULL;
}
for( i = 0; i < h->frames.i_max_dpb; i++ )
{
h->frames.reference[i] = x264_frame_new( h );
if( !h->frames.reference[i] )
return NULL;
}
h->frames.reference[h->frames.i_max_dpb] = NULL;
h->frames.i_last_idr = - h->param.i_keyint_max;
h->frames.i_input = 0;
h->frames.last_nonb = NULL;
h->i_ref0 = 0;
h->i_ref1 = 0;
h->fdec = h->frames.reference[0];
if( x264_macroblock_cache_init( h ) < 0 )
return NULL;
x264_rdo_init( );
/* init CPU functions */
x264_predict_16x16_init( h->param.cpu, h->predict_16x16 );
x264_predict_8x8c_init( h->param.cpu, h->predict_8x8c );
x264_predict_8x8_init( h->param.cpu, h->predict_8x8 );
x264_predict_4x4_init( h->param.cpu, h->predict_4x4 );
x264_pixel_init( h->param.cpu, &h->pixf );
x264_dct_init( h->param.cpu, &h->dctf );
x264_zigzag_init( h->param.cpu, &h->zigzagf, h->param.b_interlaced );
x264_mc_init( h->param.cpu, &h->mc );
x264_csp_init( h->param.cpu, h->param.i_csp, &h->csp );
x264_quant_init( h, h->param.cpu, &h->quantf );
x264_deblock_init( h->param.cpu, &h->loopf );
x264_dct_init_weights();
mbcmp_init( h );
/* rate control */
if( x264_ratecontrol_new( h ) < 0 )
return NULL;
x264_log( h, X264_LOG_INFO, "using cpu capabilities %s%s%s%s%s%s\n",
param->cpu&X264_CPU_MMX ? "MMX " : "",
param->cpu&X264_CPU_MMXEXT ? "MMXEXT " : "",
param->cpu&X264_CPU_SSE ? "SSE " : "",
param->cpu&X264_CPU_SSE2 ? "SSE2 " : "",
param->cpu&X264_CPU_3DNOW ? "3DNow! " : "",
param->cpu&X264_CPU_ALTIVEC ? "Altivec " : "" );
h->thread[0] = h;
h->i_thread_num = 0;
for( i = 1; i < h->param.i_threads; i++ )
h->thread[i] = x264_malloc( sizeof(x264_t) );
/* init array of analyse table */
x264_mb_analyse_open();
#ifdef DEBUG_DUMP_FRAME
{
/* create or truncate the reconstructed video file */
FILE *f = fopen( "fdec.yuv", "w" );
if( f )
fclose( f );
else
{
x264_log( h, X264_LOG_ERROR, "can't write to fdec.yuv\n" );
x264_free( h );
return NULL;
}
}
#endif
return h;
}
/****************************************************************************
* x264_encoder_reconfig:
****************************************************************************/
int x264_encoder_reconfig( x264_t *h, x264_param_t *param )
{
#define COPY(var) h->param.var = param->var
COPY( i_frame_reference ); // but never uses more refs than initially specified
COPY( i_bframe_bias );
COPY( i_scenecut_threshold );
COPY( b_deblocking_filter );
COPY( i_deblocking_filter_alphac0 );
COPY( i_deblocking_filter_beta );
COPY( rc.i_qp_constant );
COPY( analyse.intra );
COPY( analyse.inter );
COPY( analyse.i_direct_mv_pred );
COPY( analyse.i_me_method );
COPY( analyse.i_me_range );
COPY( analyse.i_noise_reduction );
COPY( analyse.i_subpel_refine );
COPY( analyse.i_trellis );
COPY( analyse.b_bidir_me );
COPY( analyse.b_bframe_rdo );
COPY( analyse.b_chroma_me );
COPY( analyse.b_dct_decimate );
COPY( analyse.b_fast_pskip );
COPY( analyse.b_mixed_references );
#undef COPY
if( h->pps->b_transform_8x8_mode )
h->param.analyse.b_transform_8x8 = param->analyse.b_transform_8x8;
mbcmp_init( h );
return x264_validate_parameters( h );
}
/* internal usage */
static void x264_nal_start( x264_t *h, int i_type, int i_ref_idc )
{
x264_nal_t *nal = &h->out.nal[h->out.i_nal];
nal->i_ref_idc = i_ref_idc;
nal->i_type = i_type;
bs_align_0( &h->out.bs ); /* not needed */
nal->i_payload= 0;
nal->p_payload= &h->out.p_bitstream[bs_pos( &h->out.bs) / 8];
}
static void x264_nal_end( x264_t *h )
{
x264_nal_t *nal = &h->out.nal[h->out.i_nal];
bs_align_0( &h->out.bs ); /* not needed */
nal->i_payload = &h->out.p_bitstream[bs_pos( &h->out.bs)/8] - nal->p_payload;
h->out.i_nal++;
}
/****************************************************************************
* x264_encoder_headers:
****************************************************************************/
int x264_encoder_headers( x264_t *h, x264_nal_t **pp_nal, int *pi_nal )
{
/* init bitstream context */
h->out.i_nal = 0;
bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
/* Put SPS and PPS */
if( h->i_frame == 0 )
{
/* identify ourself */
x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
x264_sei_version_write( h, &h->out.bs );
x264_nal_end( h );
/* generate sequence parameters */
x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
x264_sps_write( &h->out.bs, h->sps );
x264_nal_end( h );
/* generate picture parameters */
x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
x264_pps_write( &h->out.bs, h->pps );
x264_nal_end( h );
}
/* now set output*/
*pi_nal = h->out.i_nal;
*pp_nal = &h->out.nal[0];
return 0;
}
static void x264_frame_put( x264_frame_t *list[X264_BFRAME_MAX], x264_frame_t *frame )
{
int i = 0;
while( list[i] ) i++;
list[i] = frame;
}
static void x264_frame_push( x264_frame_t *list[X264_BFRAME_MAX], x264_frame_t *frame )
{
int i = 0;
while( list[i] ) i++;
while( i-- )
list[i+1] = list[i];
list[0] = frame;
}
static x264_frame_t *x264_frame_get( x264_frame_t *list[X264_BFRAME_MAX+1] )
{
x264_frame_t *frame = list[0];
int i;
for( i = 0; list[i]; i++ )
list[i] = list[i+1];
return frame;
}
static void x264_frame_sort( x264_frame_t *list[X264_BFRAME_MAX+1], int b_dts )
{
int i, b_ok;
do {
b_ok = 1;
for( i = 0; list[i+1]; i++ )
{
int dtype = list[i]->i_type - list[i+1]->i_type;
int dtime = list[i]->i_frame - list[i+1]->i_frame;
int swap = b_dts ? dtype > 0 || ( dtype == 0 && dtime > 0 )
: dtime > 0;
if( swap )
{
XCHG( x264_frame_t*, list[i], list[i+1] );
b_ok = 0;
}
}
} while( !b_ok );
}
#define x264_frame_sort_dts(list) x264_frame_sort(list, 1)
#define x264_frame_sort_pts(list) x264_frame_sort(list, 0)
static inline void x264_reference_build_list( x264_t *h, int i_poc, int i_slice_type )
{
int i;
int b_ok;
/* build ref list 0/1 */
h->i_ref0 = 0;
h->i_ref1 = 0;
for( i = 1; i < h->frames.i_max_dpb; i++ )
{
if( h->frames.reference[i]->i_poc >= 0 )
{
if( h->frames.reference[i]->i_poc < i_poc )
{
h->fref0[h->i_ref0++] = h->frames.reference[i];
}
else if( h->frames.reference[i]->i_poc > i_poc )
{
h->fref1[h->i_ref1++] = h->frames.reference[i];
}
}
}
/* Order ref0 from higher to lower poc */
do
{
b_ok = 1;
for( i = 0; i < h->i_ref0 - 1; i++ )
{
if( h->fref0[i]->i_poc < h->fref0[i+1]->i_poc )
{
XCHG( x264_frame_t*, h->fref0[i], h->fref0[i+1] );
b_ok = 0;
break;
}
}
} while( !b_ok );
/* Order ref1 from lower to higher poc (bubble sort) for B-frame */
do
{
b_ok = 1;
for( i = 0; i < h->i_ref1 - 1; i++ )
{
if( h->fref1[i]->i_poc > h->fref1[i+1]->i_poc )
{
XCHG( x264_frame_t*, h->fref1[i], h->fref1[i+1] );
b_ok = 0;
break;
}
}
} while( !b_ok );
/* In the standard, a P-frame's ref list is sorted by frame_num.
* We use POC, but check whether explicit reordering is needed */
h->b_ref_reorder[0] =
h->b_ref_reorder[1] = 0;
if( i_slice_type == SLICE_TYPE_P )
{
for( i = 0; i < h->i_ref0 - 1; i++ )
if( h->fref0[i]->i_frame_num < h->fref0[i+1]->i_frame_num )
{
h->b_ref_reorder[0] = 1;
break;
}
}
h->i_ref1 = X264_MIN( h->i_ref1, h->frames.i_max_ref1 );
h->i_ref0 = X264_MIN( h->i_ref0, h->frames.i_max_ref0 );
h->i_ref0 = X264_MIN( h->i_ref0, h->param.i_frame_reference ); // if reconfig() has lowered the limit
h->i_ref0 = X264_MIN( h->i_ref0, 16 - h->i_ref1 );
h->mb.pic.i_fref[0] = h->i_ref0;
h->mb.pic.i_fref[1] = h->i_ref1;
}
static inline void x264_fdec_deblock( x264_t *h )
{
/* apply deblocking filter to the current decoded picture */
if( !h->sh.i_disable_deblocking_filter_idc )
{
TIMER_START( i_mtime_filter );
x264_frame_deblocking_filter( h, h->sh.i_type );
TIMER_STOP( i_mtime_filter );
}
}
static inline void x264_reference_update( x264_t *h )
{
int i;
x264_fdec_deblock( h );
/* expand border */
x264_frame_expand_border( h, h->fdec );
/* create filtered images */
x264_frame_filter( h->param.cpu, h->fdec, h->sh.b_mbaff );
/* expand border of filtered images */
x264_frame_expand_border_filtered( h, h->fdec );
/* move lowres copy of the image to the ref frame */
for( i = 0; i < 4; i++)
{
XCHG( uint8_t*, h->fdec->lowres[i], h->fenc->lowres[i] );
XCHG( uint8_t*, h->fdec->buffer_lowres[i], h->fenc->buffer_lowres[i] );
}
/* adaptive B decision needs a pointer, since it can't use the ref lists */
if( h->sh.i_type != SLICE_TYPE_B )
h->frames.last_nonb = h->fdec;
/* move frame in the buffer */
h->fdec = h->frames.reference[h->frames.i_max_dpb-1];
for( i = h->frames.i_max_dpb-1; i > 0; i-- )
{
h->frames.reference[i] = h->frames.reference[i-1];
}
h->frames.reference[0] = h->fdec;
}
static inline void x264_reference_reset( x264_t *h )
{
int i;
/* reset ref pictures */
for( i = 1; i < h->frames.i_max_dpb; i++ )
{
h->frames.reference[i]->i_poc = -1;
}
h->frames.reference[0]->i_poc = 0;
}
static inline void x264_slice_init( x264_t *h, int i_nal_type, int i_slice_type, int i_global_qp )
{
/* ------------------------ Create slice header ----------------------- */
if( i_nal_type == NAL_SLICE_IDR )
{
x264_slice_header_init( h, &h->sh, h->sps, h->pps, i_slice_type, h->i_idr_pic_id, h->i_frame_num, i_global_qp );
/* increment id */
h->i_idr_pic_id = ( h->i_idr_pic_id + 1 ) % 65536;
}
else
{
x264_slice_header_init( h, &h->sh, h->sps, h->pps, i_slice_type, -1, h->i_frame_num, i_global_qp );
/* always set the real higher num of ref frame used */
h->sh.b_num_ref_idx_override = 1;
h->sh.i_num_ref_idx_l0_active = h->i_ref0 <= 0 ? 1 : h->i_ref0;
h->sh.i_num_ref_idx_l1_active = h->i_ref1 <= 0 ? 1 : h->i_ref1;
}
h->fdec->i_frame_num = h->sh.i_frame_num;
if( h->sps->i_poc_type == 0 )
{
h->sh.i_poc_lsb = h->fdec->i_poc & ( (1 << h->sps->i_log2_max_poc_lsb) - 1 );
h->sh.i_delta_poc_bottom = 0; /* XXX won't work for field */
}
else if( h->sps->i_poc_type == 1 )
{
/* FIXME TODO FIXME */
}
else
{
/* Nothing to do ? */
}
x264_macroblock_slice_init( h );
}
static int x264_slice_write( x264_t *h )
{
int i_skip;
int mb_xy;
int i;
/* init stats */
memset( &h->stat.frame, 0, sizeof(h->stat.frame) );
/* Slice */
x264_nal_start( h, h->i_nal_type, h->i_nal_ref_idc );
/* Slice header */
x264_slice_header_write( &h->out.bs, &h->sh, h->i_nal_ref_idc );
if( h->param.b_cabac )
{
/* alignment needed */
bs_align_1( &h->out.bs );
/* init cabac */
x264_cabac_context_init( &h->cabac, h->sh.i_type, h->sh.i_qp, h->sh.i_cabac_init_idc );
x264_cabac_encode_init ( &h->cabac, &h->out.bs );
}
h->mb.i_last_qp = h->sh.i_qp;
h->mb.i_last_dqp = 0;
for( mb_xy = h->sh.i_first_mb, i_skip = 0; mb_xy < h->sh.i_last_mb; )
{
const int i_mb_y = mb_xy / h->sps->i_mb_width;
const int i_mb_x = mb_xy % h->sps->i_mb_width;
int mb_spos = bs_pos(&h->out.bs);
/* load cache */
x264_macroblock_cache_load( h, i_mb_x, i_mb_y );
/* analyse parameters
* Slice I: choose I_4x4 or I_16x16 mode
* Slice P: choose between using P mode or intra (4x4 or 16x16)
* */
TIMER_START( i_mtime_analyse );
x264_macroblock_analyse( h );
TIMER_STOP( i_mtime_analyse );
/* encode this macroblock -> be careful it can change the mb type to P_SKIP if needed */
TIMER_START( i_mtime_encode );
x264_macroblock_encode( h );
TIMER_STOP( i_mtime_encode );
TIMER_START( i_mtime_write );
if( h->param.b_cabac )
{
if( mb_xy > h->sh.i_first_mb && !(h->sh.b_mbaff && (i_mb_y&1)) )
x264_cabac_encode_terminal( &h->cabac, 0 );
if( IS_SKIP( h->mb.i_type ) )
x264_cabac_mb_skip( h, 1 );
else
{
if( h->sh.i_type != SLICE_TYPE_I )
x264_cabac_mb_skip( h, 0 );
x264_macroblock_write_cabac( h, &h->cabac );
}
}
else
{
if( IS_SKIP( h->mb.i_type ) )
i_skip++;
else
{
if( h->sh.i_type != SLICE_TYPE_I )
{
bs_write_ue( &h->out.bs, i_skip ); /* skip run */
i_skip = 0;
}
x264_macroblock_write_cavlc( h, &h->out.bs );
}
}
TIMER_STOP( i_mtime_write );
#if VISUALIZE
if( h->param.b_visualize )
x264_visualize_mb( h );
#endif
/* save cache */
x264_macroblock_cache_save( h );
/* accumulate mb stats */
h->stat.frame.i_mb_count[h->mb.i_type]++;
if( !IS_SKIP(h->mb.i_type) && !IS_INTRA(h->mb.i_type) && !IS_DIRECT(h->mb.i_type) )
{
if( h->mb.i_partition != D_8x8 )
h->stat.frame.i_mb_count_size[ x264_mb_partition_pixel_table[ h->mb.i_partition ] ] += 4;
else
for( i = 0; i < 4; i++ )
h->stat.frame.i_mb_count_size[ x264_mb_partition_pixel_table[ h->mb.i_sub_partition[i] ] ] ++;
if( h->param.i_frame_reference > 1 )
{
for( i = 0; i < 4; i++ )
{
int i_ref = h->mb.cache.ref[0][ x264_scan8[4*i] ];
if( i_ref >= 0 )
h->stat.frame.i_mb_count_ref[i_ref] ++;
}
}
}
if( h->mb.i_cbp_luma && !IS_INTRA(h->mb.i_type) )
{
h->stat.frame.i_mb_count_8x8dct[0] ++;
h->stat.frame.i_mb_count_8x8dct[1] += h->mb.b_transform_8x8;
}
if( h->mb.b_variable_qp )
x264_ratecontrol_mb(h, bs_pos(&h->out.bs) - mb_spos);
if( h->sh.b_mbaff )
{
if( (i_mb_y&1) && i_mb_x == h->sps->i_mb_width - 1 )
mb_xy++;
else if( i_mb_y&1 )
mb_xy += 1 - h->sps->i_mb_width;
else
mb_xy += h->sps->i_mb_width;
}
else
mb_xy++;
}
if( h->param.b_cabac )
{
/* end of slice */
x264_cabac_encode_terminal( &h->cabac, 1 );
}
else if( i_skip > 0 )
{
bs_write_ue( &h->out.bs, i_skip ); /* last skip run */
}
if( h->param.b_cabac )
{
x264_cabac_encode_flush( &h->cabac );
}
else
{
/* rbsp_slice_trailing_bits */
bs_rbsp_trailing( &h->out.bs );
}
x264_nal_end( h );
/* Compute misc bits */
h->stat.frame.i_misc_bits = bs_pos( &h->out.bs )
+ NALU_OVERHEAD * 8
- h->stat.frame.i_itex_bits
- h->stat.frame.i_ptex_bits
- h->stat.frame.i_hdr_bits;
return 0;
}
static inline int x264_slices_write( x264_t *h )
{
int i_frame_size;
#if VISUALIZE
if( h->param.b_visualize )
x264_visualize_init( h );
#endif
if( h->param.i_threads == 1 )
{
x264_ratecontrol_threads_start( h );
x264_slice_write( h );
i_frame_size = h->out.nal[h->out.i_nal-1].i_payload;
}
else
{
int i_nal = h->out.i_nal;
int i_bs_size = h->out.i_bitstream / h->param.i_threads;
int i;
/* duplicate contexts */
for( i = 0; i < h->param.i_threads; i++ )
{
x264_t *t = h->thread[i];
int mb_height = h->sps->i_mb_height >> h->sh.b_mbaff;
int mb_width = h->sps->i_mb_width << h->sh.b_mbaff;
if( i > 0 )
{
memcpy( t, h, sizeof(x264_t) );
t->out.p_bitstream += i*i_bs_size;
bs_init( &t->out.bs, t->out.p_bitstream, i_bs_size );
t->i_thread_num = i;
}
t->sh.i_first_mb = (i * mb_height / h->param.i_threads) * mb_width;
t->sh.i_last_mb = ((i+1) * mb_height / h->param.i_threads) * mb_width;
t->out.i_nal = i_nal + i;
}
x264_ratecontrol_threads_start( h );
/* dispatch */
#ifdef HAVE_PTHREAD
{
pthread_t handles[X264_SLICE_MAX];
for( i = 0; i < h->param.i_threads; i++ )
pthread_create( &handles[i], NULL, (void*)x264_slice_write, (void*)h->thread[i] );
for( i = 0; i < h->param.i_threads; i++ )
pthread_join( handles[i], NULL );
}
#else
for( i = 0; i < h->param.i_threads; i++ )
x264_slice_write( h->thread[i] );
#endif
/* merge contexts */
i_frame_size = h->out.nal[i_nal].i_payload;
for( i = 1; i < h->param.i_threads; i++ )
{
int j;
x264_t *t = h->thread[i];
h->out.nal[i_nal+i] = t->out.nal[i_nal+i];
i_frame_size += t->out.nal[i_nal+i].i_payload;
// all entries in stat.frame are ints
for( j = 0; j < sizeof(h->stat.frame) / sizeof(int); j++ )
((int*)&h->stat.frame)[j] += ((int*)&t->stat.frame)[j];
}
h->out.i_nal = i_nal + h->param.i_threads;
}
#if VISUALIZE
if( h->param.b_visualize )
{
x264_visualize_show( h );
x264_visualize_close( h );
}
#endif
return i_frame_size;
}
/****************************************************************************
* x264_encoder_encode:
* XXX: i_poc : is the poc of the current given picture
* i_frame : is the number of the frame being coded
* ex: type frame poc
* I 0 2*0
* P 1 2*3
* B 2 2*1
* B 3 2*2
* P 4 2*6
* B 5 2*4
* B 6 2*5
****************************************************************************/
int x264_encoder_encode( x264_t *h,
x264_nal_t **pp_nal, int *pi_nal,
x264_picture_t *pic_in,
x264_picture_t *pic_out )
{
x264_frame_t *frame_psnr = h->fdec; /* just to keep the current decoded frame for psnr calculation */
int i_nal_type;
int i_nal_ref_idc;
int i_slice_type;
int i_frame_size;
int i;
int i_global_qp;
char psz_message[80];
/* no data out */
*pi_nal = 0;
*pp_nal = NULL;
/* ------------------- Setup new frame from picture -------------------- */
TIMER_START( i_mtime_encode_frame );
if( pic_in != NULL )
{
/* 1: Copy the picture to a frame and move it to a buffer */
x264_frame_t *fenc = x264_frame_get( h->frames.unused );
x264_frame_copy_picture( h, fenc, pic_in );
if( h->param.i_width != 16 * h->sps->i_mb_width ||
h->param.i_height != 16 * h->sps->i_mb_height )
x264_frame_expand_border_mod16( h, fenc );
fenc->i_frame = h->frames.i_input++;
x264_frame_put( h->frames.next, fenc );
if( h->frames.b_have_lowres )
x264_frame_init_lowres( h->param.cpu, fenc );
if( h->frames.i_input <= h->frames.i_delay )
{
/* Nothing yet to encode */
/* waiting for filling bframe buffer */
pic_out->i_type = X264_TYPE_AUTO;
return 0;
}
}
if( h->frames.current[0] == NULL )
{
int bframes = 0;
/* 2: Select frame types */
if( h->frames.next[0] == NULL )
return 0;
x264_slicetype_decide( h );
/* 3: move some B-frames and 1 non-B to encode queue */
while( IS_X264_TYPE_B( h->frames.next[bframes]->i_type ) )
bframes++;
x264_frame_put( h->frames.current, x264_frame_get( &h->frames.next[bframes] ) );
/* FIXME: when max B-frames > 3, BREF may no longer be centered after GOP closing */
if( h->param.b_bframe_pyramid && bframes > 1 )
{
x264_frame_t *mid = x264_frame_get( &h->frames.next[bframes/2] );
mid->i_type = X264_TYPE_BREF;
x264_frame_put( h->frames.current, mid );
bframes--;
}
while( bframes-- )
x264_frame_put( h->frames.current, x264_frame_get( h->frames.next ) );
}
TIMER_STOP( i_mtime_encode_frame );
/* ------------------- Get frame to be encoded ------------------------- */
/* 4: get picture to encode */
h->fenc = x264_frame_get( h->frames.current );
if( h->fenc == NULL )
{
/* Nothing yet to encode (ex: waiting for I/P with B frames) */
/* waiting for filling bframe buffer */
pic_out->i_type = X264_TYPE_AUTO;
return 0;
}
do_encode:
if( h->fenc->i_type == X264_TYPE_IDR )
{
h->frames.i_last_idr = h->fenc->i_frame;
}
/* ------------------- Setup frame context ----------------------------- */
/* 5: Init data dependent of frame type */
TIMER_START( i_mtime_encode_frame );
if( h->fenc->i_type == X264_TYPE_IDR )
{
/* reset ref pictures */
x264_reference_reset( h );
i_nal_type = NAL_SLICE_IDR;
i_nal_ref_idc = NAL_PRIORITY_HIGHEST;
i_slice_type = SLICE_TYPE_I;
}
else if( h->fenc->i_type == X264_TYPE_I )
{
i_nal_type = NAL_SLICE;
i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
i_slice_type = SLICE_TYPE_I;
}
else if( h->fenc->i_type == X264_TYPE_P )
{
i_nal_type = NAL_SLICE;
i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
i_slice_type = SLICE_TYPE_P;
}
else if( h->fenc->i_type == X264_TYPE_BREF )
{
i_nal_type = NAL_SLICE;
i_nal_ref_idc = NAL_PRIORITY_HIGH; /* maybe add MMCO to forget it? -> low */
i_slice_type = SLICE_TYPE_B;
}
else /* B frame */
{
i_nal_type = NAL_SLICE;
i_nal_ref_idc = NAL_PRIORITY_DISPOSABLE;
i_slice_type = SLICE_TYPE_B;
}
h->fdec->i_poc =
h->fenc->i_poc = 2 * (h->fenc->i_frame - h->frames.i_last_idr);
h->fdec->i_type = h->fenc->i_type;
h->fdec->i_frame = h->fenc->i_frame;
h->fenc->b_kept_as_ref =
h->fdec->b_kept_as_ref = i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE;
/* ------------------- Init ----------------------------- */
/* build ref list 0/1 */
x264_reference_build_list( h, h->fdec->i_poc, i_slice_type );
/* Init the rate control */
x264_ratecontrol_start( h, i_slice_type, h->fenc->i_qpplus1 );
i_global_qp = x264_ratecontrol_qp( h );
pic_out->i_qpplus1 =
h->fdec->i_qpplus1 = i_global_qp + 1;
if( i_slice_type == SLICE_TYPE_B )
x264_macroblock_bipred_init( h );
/* ------------------------ Create slice header ----------------------- */
x264_slice_init( h, i_nal_type, i_slice_type, i_global_qp );
if( h->fenc->b_kept_as_ref )
h->i_frame_num++;
/* ---------------------- Write the bitstream -------------------------- */
/* Init bitstream context */
h->out.i_nal = 0;
bs_init( &h->out.bs, h->out.p_bitstream, h->out.i_bitstream );
if(h->param.b_aud){
int pic_type;
if(i_slice_type == SLICE_TYPE_I)
pic_type = 0;
else if(i_slice_type == SLICE_TYPE_P)
pic_type = 1;
else if(i_slice_type == SLICE_TYPE_B)
pic_type = 2;
else
pic_type = 7;
x264_nal_start(h, NAL_AUD, NAL_PRIORITY_DISPOSABLE);
bs_write(&h->out.bs, 3, pic_type);
bs_rbsp_trailing(&h->out.bs);
x264_nal_end(h);
}
h->i_nal_type = i_nal_type;
h->i_nal_ref_idc = i_nal_ref_idc;
/* Write SPS and PPS */
if( i_nal_type == NAL_SLICE_IDR && h->param.b_repeat_headers )
{
if( h->fenc->i_frame == 0 )
{
/* identify ourself */
x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
x264_sei_version_write( h, &h->out.bs );
x264_nal_end( h );
}
/* generate sequence parameters */
x264_nal_start( h, NAL_SPS, NAL_PRIORITY_HIGHEST );
x264_sps_write( &h->out.bs, h->sps );
x264_nal_end( h );
/* generate picture parameters */
x264_nal_start( h, NAL_PPS, NAL_PRIORITY_HIGHEST );
x264_pps_write( &h->out.bs, h->pps );
x264_nal_end( h );
}
/* Write frame */
i_frame_size = x264_slices_write( h );
/* restore CPU state (before using float again) */
x264_cpu_restore( h->param.cpu );
if( i_slice_type == SLICE_TYPE_P && !h->param.rc.b_stat_read
&& h->param.i_scenecut_threshold >= 0 )
{
const int *mbs = h->stat.frame.i_mb_count;
int i_mb_i = mbs[I_16x16] + mbs[I_8x8] + mbs[I_4x4];
int i_mb_p = mbs[P_L0] + mbs[P_8x8];
int i_mb_s = mbs[P_SKIP];
int i_mb = h->sps->i_mb_width * h->sps->i_mb_height;
int64_t i_inter_cost = h->stat.frame.i_inter_cost;
int64_t i_intra_cost = h->stat.frame.i_intra_cost;
float f_bias;
int i_gop_size = h->fenc->i_frame - h->frames.i_last_idr;
float f_thresh_max = h->param.i_scenecut_threshold / 100.0f;
/* magic numbers pulled out of thin air */
float f_thresh_min = f_thresh_max * h->param.i_keyint_min
/ ( h->param.i_keyint_max * 4 );
if( h->param.i_keyint_min == h->param.i_keyint_max )
f_thresh_min= f_thresh_max;
/* macroblock_analyse() doesn't further analyse skipped mbs,
* so we have to guess their cost */
if( i_mb_s < i_mb )
i_intra_cost = i_intra_cost * i_mb / (i_mb - i_mb_s);
if( i_gop_size < h->param.i_keyint_min / 4 )
f_bias = f_thresh_min / 4;
else if( i_gop_size <= h->param.i_keyint_min )
f_bias = f_thresh_min * i_gop_size / h->param.i_keyint_min;
else
{
f_bias = f_thresh_min
+ ( f_thresh_max - f_thresh_min )
* ( i_gop_size - h->param.i_keyint_min )
/ ( h->param.i_keyint_max - h->param.i_keyint_min );
}
f_bias = X264_MIN( f_bias, 1.0f );
/* Bad P will be reencoded as I */
if( i_mb_s < i_mb &&
i_inter_cost >= (1.0 - f_bias) * i_intra_cost )
{
int b;
x264_log( h, X264_LOG_DEBUG, "scene cut at %d Icost:%.0f Pcost:%.0f ratio:%.3f bias=%.3f lastIDR:%d (I:%d P:%d S:%d)\n",
h->fenc->i_frame,
(double)i_intra_cost, (double)i_inter_cost,
(double)i_inter_cost / i_intra_cost,
f_bias, i_gop_size,
i_mb_i, i_mb_p, i_mb_s );
/* Restore frame num */
h->i_frame_num--;
for( b = 0; h->frames.current[b] && IS_X264_TYPE_B( h->frames.current[b]->i_type ); b++ );
if( b > 0 )
{
/* If using B-frames, force GOP to be closed.
* Even if this frame is going to be I and not IDR, forcing a
* P-frame before the scenecut will probably help compression.
*
* We don't yet know exactly which frame is the scene cut, so
* we can't assign an I-frame. Instead, change the previous
* B-frame to P, and rearrange coding order. */
if( h->param.b_bframe_adaptive || b > 1 )
h->fenc->i_type = X264_TYPE_AUTO;
x264_frame_sort_pts( h->frames.current );
x264_frame_push( h->frames.next, h->fenc );
h->fenc = h->frames.current[b-1];
h->frames.current[b-1] = NULL;
h->fenc->i_type = X264_TYPE_P;
x264_frame_sort_dts( h->frames.current );
}
/* Do IDR if needed */
else if( i_gop_size >= h->param.i_keyint_min )
{
x264_frame_t *tmp;
/* Reset */
h->i_frame_num = 0;
/* Reinit field of fenc */
h->fenc->i_type = X264_TYPE_IDR;
h->fenc->i_poc = 0;
/* Put enqueued frames back in the pool */
while( (tmp = x264_frame_get( h->frames.current ) ) != NULL )
x264_frame_put( h->frames.next, tmp );
x264_frame_sort_pts( h->frames.next );
}
else
{
h->fenc->i_type = X264_TYPE_I;
}
goto do_encode;
}
}
/* End bitstream, set output */
*pi_nal = h->out.i_nal;
*pp_nal = h->out.nal;
/* Set output picture properties */
if( i_slice_type == SLICE_TYPE_I )
pic_out->i_type = i_nal_type == NAL_SLICE_IDR ? X264_TYPE_IDR : X264_TYPE_I;
else if( i_slice_type == SLICE_TYPE_P )
pic_out->i_type = X264_TYPE_P;
else
pic_out->i_type = X264_TYPE_B;
pic_out->i_pts = h->fenc->i_pts;
pic_out->img.i_plane = h->fdec->i_plane;
for(i = 0; i < 4; i++){
pic_out->img.i_stride[i] = h->fdec->i_stride[i];
pic_out->img.plane[i] = h->fdec->plane[i];
}
/* ---------------------- Update encoder state ------------------------- */
/* update rc */
x264_cpu_restore( h->param.cpu );
x264_ratecontrol_end( h, i_frame_size * 8 );
/* handle references */
if( i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE )
x264_reference_update( h );
#ifdef DEBUG_DUMP_FRAME
else
x264_fdec_deblock( h );
#endif
x264_frame_put( h->frames.unused, h->fenc );
/* increase frame count */
h->i_frame++;
/* restore CPU state (before using float again) */
x264_cpu_restore( h->param.cpu );
x264_noise_reduction_update( h );
TIMER_STOP( i_mtime_encode_frame );
/* ---------------------- Compute/Print statistics --------------------- */
/* Slice stat */
h->stat.i_slice_count[i_slice_type]++;
h->stat.i_slice_size[i_slice_type] += i_frame_size + NALU_OVERHEAD;
h->stat.i_slice_qp[i_slice_type] += i_global_qp;
for( i = 0; i < X264_MBTYPE_MAX; i++ )
h->stat.i_mb_count[h->sh.i_type][i] += h->stat.frame.i_mb_count[i];
for( i = 0; i < 2; i++ )
h->stat.i_mb_count_8x8dct[i] += h->stat.frame.i_mb_count_8x8dct[i];
if( h->sh.i_type != SLICE_TYPE_I )
{
for( i = 0; i < 7; i++ )
h->stat.i_mb_count_size[h->sh.i_type][i] += h->stat.frame.i_mb_count_size[i];
for( i = 0; i < 32; i++ )
h->stat.i_mb_count_ref[h->sh.i_type][i] += h->stat.frame.i_mb_count_ref[i];
}
if( i_slice_type == SLICE_TYPE_B )
{
h->stat.i_direct_frames[ h->sh.b_direct_spatial_mv_pred ] ++;
if( h->mb.b_direct_auto_write )
{
//FIXME somewhat arbitrary time constants
if( h->stat.i_direct_score[0] + h->stat.i_direct_score[1] > h->mb.i_mb_count )
{
for( i = 0; i < 2; i++ )
h->stat.i_direct_score[i] = h->stat.i_direct_score[i] * 9/10;
}
for( i = 0; i < 2; i++ )
h->stat.i_direct_score[i] += h->stat.frame.i_direct_score[i];
}
}
psz_message[0] = '\0';
if( h->param.analyse.b_psnr )
{
int64_t sqe[3];
for( i=0; i<3; i++ )
{
sqe[i] = x264_pixel_ssd_wxh( &h->pixf,
frame_psnr->plane[i], frame_psnr->i_stride[i],
h->fenc->plane[i], h->fenc->i_stride[i],
h->param.i_width >> !!i, h->param.i_height >> !!i );
}
x264_cpu_restore( h->param.cpu );
h->stat.i_sqe_global[i_slice_type] += sqe[0] + sqe[1] + sqe[2];
h->stat.f_psnr_average[i_slice_type] += x264_psnr( sqe[0] + sqe[1] + sqe[2], 3 * h->param.i_width * h->param.i_height / 2 );
h->stat.f_psnr_mean_y[i_slice_type] += x264_psnr( sqe[0], h->param.i_width * h->param.i_height );
h->stat.f_psnr_mean_u[i_slice_type] += x264_psnr( sqe[1], h->param.i_width * h->param.i_height / 4 );
h->stat.f_psnr_mean_v[i_slice_type] += x264_psnr( sqe[2], h->param.i_width * h->param.i_height / 4 );
snprintf( psz_message, 80, " PSNR Y:%5.2f U:%5.2f V:%5.2f",
x264_psnr( sqe[0], h->param.i_width * h->param.i_height ),
x264_psnr( sqe[1], h->param.i_width * h->param.i_height / 4),
x264_psnr( sqe[2], h->param.i_width * h->param.i_height / 4) );
}
if( h->param.analyse.b_ssim )
{
// offset by 2 pixels to avoid alignment of ssim blocks with dct blocks
float ssim_y = x264_pixel_ssim_wxh( &h->pixf,
frame_psnr->plane[0] + 2+2*frame_psnr->i_stride[0], frame_psnr->i_stride[0],
h->fenc->plane[0] + 2+2*h->fenc->i_stride[0], h->fenc->i_stride[0],
h->param.i_width-2, h->param.i_height-2 );
h->stat.f_ssim_mean_y[i_slice_type] += ssim_y;
snprintf( psz_message + strlen(psz_message), 80 - strlen(psz_message),
" SSIM Y:%.5f", ssim_y );
}
psz_message[79] = '\0';
x264_log( h, X264_LOG_DEBUG,
"frame=%4d QP=%i NAL=%d Slice:%c Poc:%-3d I:%-4d P:%-4d SKIP:%-4d size=%d bytes%s\n",
h->i_frame - 1,
i_global_qp,
i_nal_ref_idc,
i_slice_type == SLICE_TYPE_I ? 'I' : (i_slice_type == SLICE_TYPE_P ? 'P' : 'B' ),
frame_psnr->i_poc,
h->stat.frame.i_mb_count_i,
h->stat.frame.i_mb_count_p,
h->stat.frame.i_mb_count_skip,
i_frame_size,
psz_message );
#ifdef DEBUG_MB_TYPE
{
static const char mb_chars[] = { 'i', 'i', 'I', 'C', 'P', '8', 'S',
'D', '<', 'X', 'B', 'X', '>', 'B', 'B', 'B', 'B', '8', 'S' };
int mb_xy;
for( mb_xy = 0; mb_xy < h->sps->i_mb_width * h->sps->i_mb_height; mb_xy++ )
{
if( h->mb.type[mb_xy] < X264_MBTYPE_MAX && h->mb.type[mb_xy] >= 0 )
fprintf( stderr, "%c ", mb_chars[ h->mb.type[mb_xy] ] );
else
fprintf( stderr, "? " );
if( (mb_xy+1) % h->sps->i_mb_width == 0 )
fprintf( stderr, "\n" );
}
}
#endif
#ifdef DEBUG_DUMP_FRAME
/* Dump reconstructed frame */
x264_frame_dump( h, frame_psnr, "fdec.yuv" );
#endif
return 0;
}
/****************************************************************************
* x264_encoder_close:
****************************************************************************/
void x264_encoder_close ( x264_t *h )
{
#ifdef DEBUG_BENCHMARK
int64_t i_mtime_total = i_mtime_analyse + i_mtime_encode + i_mtime_write + i_mtime_filter + 1;
#endif
int64_t i_yuv_size = 3 * h->param.i_width * h->param.i_height / 2;
int i;
#ifdef DEBUG_BENCHMARK
x264_log( h, X264_LOG_INFO,
"analyse=%d(%lldms) encode=%d(%lldms) write=%d(%lldms) filter=%d(%lldms)\n",
(int)(100*i_mtime_analyse/i_mtime_total), i_mtime_analyse/1000,
(int)(100*i_mtime_encode/i_mtime_total), i_mtime_encode/1000,
(int)(100*i_mtime_write/i_mtime_total), i_mtime_write/1000,
(int)(100*i_mtime_filter/i_mtime_total), i_mtime_filter/1000 );
#endif
/* Slices used and PSNR */
for( i=0; i<5; i++ )
{
static const int slice_order[] = { SLICE_TYPE_I, SLICE_TYPE_SI, SLICE_TYPE_P, SLICE_TYPE_SP, SLICE_TYPE_B };
static const char *slice_name[] = { "P", "B", "I", "SP", "SI" };
int i_slice = slice_order[i];
if( h->stat.i_slice_count[i_slice] > 0 )
{
const int i_count = h->stat.i_slice_count[i_slice];
if( h->param.analyse.b_psnr )
{
x264_log( h, X264_LOG_INFO,
"slice %s:%-5d Avg QP:%5.2f size:%6.0f PSNR Mean Y:%5.2f U:%5.2f V:%5.2f Avg:%5.2f Global:%5.2f\n",
slice_name[i_slice],
i_count,
(double)h->stat.i_slice_qp[i_slice] / i_count,
(double)h->stat.i_slice_size[i_slice] / i_count,
h->stat.f_psnr_mean_y[i_slice] / i_count, h->stat.f_psnr_mean_u[i_slice] / i_count, h->stat.f_psnr_mean_v[i_slice] / i_count,
h->stat.f_psnr_average[i_slice] / i_count,
x264_psnr( h->stat.i_sqe_global[i_slice], i_count * i_yuv_size ) );
}
else
{
x264_log( h, X264_LOG_INFO,
"slice %s:%-5d Avg QP:%5.2f size:%6.0f\n",
slice_name[i_slice],
i_count,
(double)h->stat.i_slice_qp[i_slice] / i_count,
(double)h->stat.i_slice_size[i_slice] / i_count );
}
}
}
/* MB types used */
if( h->stat.i_slice_count[SLICE_TYPE_I] > 0 )
{
const int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_I];
const double i_count = h->stat.i_slice_count[SLICE_TYPE_I] * h->mb.i_mb_count / 100.0;
x264_log( h, X264_LOG_INFO,
"mb I I16..4: %4.1f%% %4.1f%% %4.1f%%\n",
i_mb_count[I_16x16]/ i_count,
i_mb_count[I_8x8] / i_count,
i_mb_count[I_4x4] / i_count );
}
if( h->stat.i_slice_count[SLICE_TYPE_P] > 0 )
{
const int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_P];
const int64_t *i_mb_size = h->stat.i_mb_count_size[SLICE_TYPE_P];
const double i_count = h->stat.i_slice_count[SLICE_TYPE_P] * h->mb.i_mb_count / 100.0;
x264_log( h, X264_LOG_INFO,
"mb P I16..4: %4.1f%% %4.1f%% %4.1f%% P16..4: %4.1f%% %4.1f%% %4.1f%% %4.1f%% %4.1f%% skip:%4.1f%%\n",
i_mb_count[I_16x16]/ i_count,
i_mb_count[I_8x8] / i_count,
i_mb_count[I_4x4] / i_count,
i_mb_size[PIXEL_16x16] / (i_count*4),
(i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
i_mb_size[PIXEL_8x8] / (i_count*4),
(i_mb_size[PIXEL_8x4] + i_mb_size[PIXEL_4x8]) / (i_count*4),
i_mb_size[PIXEL_4x4] / (i_count*4),
i_mb_count[P_SKIP] / i_count );
}
if( h->stat.i_slice_count[SLICE_TYPE_B] > 0 )
{
const int64_t *i_mb_count = h->stat.i_mb_count[SLICE_TYPE_B];
const int64_t *i_mb_size = h->stat.i_mb_count_size[SLICE_TYPE_B];
const double i_count = h->stat.i_slice_count[SLICE_TYPE_B] * h->mb.i_mb_count / 100.0;
x264_log( h, X264_LOG_INFO,
"mb B I16..4: %4.1f%% %4.1f%% %4.1f%% B16..8: %4.1f%% %4.1f%% %4.1f%% direct:%4.1f%% skip:%4.1f%%\n",
i_mb_count[I_16x16] / i_count,
i_mb_count[I_8x8] / i_count,
i_mb_count[I_4x4] / i_count,
i_mb_size[PIXEL_16x16] / (i_count*4),
(i_mb_size[PIXEL_16x8] + i_mb_size[PIXEL_8x16]) / (i_count*4),
i_mb_size[PIXEL_8x8] / (i_count*4),
i_mb_count[B_DIRECT] / i_count,
i_mb_count[B_SKIP] / i_count );
}
x264_ratecontrol_summary( h );
if( h->stat.i_slice_count[SLICE_TYPE_I] + h->stat.i_slice_count[SLICE_TYPE_P] + h->stat.i_slice_count[SLICE_TYPE_B] > 0 )
{
const int i_count = h->stat.i_slice_count[SLICE_TYPE_I] +
h->stat.i_slice_count[SLICE_TYPE_P] +
h->stat.i_slice_count[SLICE_TYPE_B];
float fps = (float) h->param.i_fps_num / h->param.i_fps_den;
#define SUM3(p) (p[SLICE_TYPE_I] + p[SLICE_TYPE_P] + p[SLICE_TYPE_B])
#define SUM3b(p,o) (p[SLICE_TYPE_I][o] + p[SLICE_TYPE_P][o] + p[SLICE_TYPE_B][o])
float f_bitrate = fps * SUM3(h->stat.i_slice_size) / i_count / 125;
if( h->pps->b_transform_8x8_mode )
{
int64_t i_i8x8 = SUM3b( h->stat.i_mb_count, I_8x8 );
int64_t i_intra = i_i8x8 + SUM3b( h->stat.i_mb_count, I_4x4 )
+ SUM3b( h->stat.i_mb_count, I_16x16 );
x264_log( h, X264_LOG_INFO, "8x8 transform intra:%.1f%% inter:%.1f%%\n",
100. * i_i8x8 / i_intra,
100. * h->stat.i_mb_count_8x8dct[1] / h->stat.i_mb_count_8x8dct[0] );
}
if( h->param.analyse.i_direct_mv_pred == X264_DIRECT_PRED_AUTO
&& h->stat.i_slice_count[SLICE_TYPE_B] )
{
x264_log( h, X264_LOG_INFO, "direct mvs spatial:%.1f%% temporal:%.1f%%\n",
h->stat.i_direct_frames[1] * 100. / h->stat.i_slice_count[SLICE_TYPE_B],
h->stat.i_direct_frames[0] * 100. / h->stat.i_slice_count[SLICE_TYPE_B] );
}
if( h->frames.i_max_ref0 > 1 )
{
int i_slice;
for( i_slice = 0; i_slice < 2; i_slice++ )
{
char buf[200];
char *p = buf;
int64_t i_den = 0;
int i_max = 0;
for( i = 0; i < h->frames.i_max_ref0 << h->param.b_interlaced; i++ )
if( h->stat.i_mb_count_ref[i_slice][i] )
{
i_den += h->stat.i_mb_count_ref[i_slice][i];
i_max = i;
}
if( i_max == 0 )
continue;
for( i = 0; i <= i_max; i++ )
p += sprintf( p, " %4.1f%%", 100. * h->stat.i_mb_count_ref[i_slice][i] / i_den );
x264_log( h, X264_LOG_INFO, "ref %c %s\n", i_slice==SLICE_TYPE_P ? 'P' : 'B', buf );
}
}
if( h->param.analyse.b_ssim )
{
x264_log( h, X264_LOG_INFO,
"SSIM Mean Y:%.7f\n",
SUM3( h->stat.f_ssim_mean_y ) / i_count );
}
if( h->param.analyse.b_psnr )
{
x264_log( h, X264_LOG_INFO,
"PSNR Mean Y:%6.3f U:%6.3f V:%6.3f Avg:%6.3f Global:%6.3f kb/s:%.2f\n",
SUM3( h->stat.f_psnr_mean_y ) / i_count,
SUM3( h->stat.f_psnr_mean_u ) / i_count,
SUM3( h->stat.f_psnr_mean_v ) / i_count,
SUM3( h->stat.f_psnr_average ) / i_count,
x264_psnr( SUM3( h->stat.i_sqe_global ), i_count * i_yuv_size ),
f_bitrate );
}
else
x264_log( h, X264_LOG_INFO, "kb/s:%.1f\n", f_bitrate );
}
/* frames */
for( i = 0; i < X264_BFRAME_MAX + 3; i++ )
{
if( h->frames.current[i] ) x264_frame_delete( h->frames.current[i] );
if( h->frames.next[i] ) x264_frame_delete( h->frames.next[i] );
if( h->frames.unused[i] ) x264_frame_delete( h->frames.unused[i] );
}
/* ref frames */
for( i = 0; i < h->frames.i_max_dpb; i++ )
{
x264_frame_delete( h->frames.reference[i] );
}
/* rc */
x264_ratecontrol_delete( h );
/* param */
if( h->param.rc.psz_stat_out )
CC_free( h->param.rc.psz_stat_out );
if( h->param.rc.psz_stat_in )
CC_free( h->param.rc.psz_stat_in );
if( h->param.rc.psz_rc_eq )
CC_free( h->param.rc.psz_rc_eq );
x264_cqm_delete( h );
x264_macroblock_cache_end( h );
x264_free( h->out.p_bitstream );
for( i = 1; i < h->param.i_threads; i++ )
x264_free( h->thread[i] );
x264_free( h );
/* CC_free anayse table */
x264_mb_analyse_end();
}
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