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encoder.c
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encoder.c
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/*****************************************************************************
* encoder.c: top-level encoder functions
*****************************************************************************
* Copyright (C) 2003-2018 x264 project
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
* Loren Merritt <lorenm@u.washington.edu>
* Fiona Glaser <fiona@x264.com>
*
* This program is 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
*
* This program is also available under a commercial proprietary license.
* For more information, contact us at licensing@x264.com.
*****************************************************************************/
#include "common/common.h"
#include "set.h"
#include "analyse.h"
#include "ratecontrol.h"
#include "macroblock.h"
#include "me.h"
#if HAVE_INTEL_DISPATCHER
#include "extras/intel_dispatcher.h"
#endif
//#define DEBUG_MB_TYPE
#define bs_write_ue bs_write_ue_big
// forward declaration needed for template usage
void x264_nal_encode( x264_t *h, uint8_t *dst, x264_nal_t *nal );
void x264_macroblock_cache_load_progressive( x264_t *h, int i_mb_x, int i_mb_y );
static int encoder_frame_end( x264_t *h, x264_t *thread_current,
x264_nal_t **pp_nal, int *pi_nal,
x264_picture_t *pic_out );
/****************************************************************************
*
******************************* x264 libs **********************************
*
****************************************************************************/
static double calc_psnr( double sqe, double size )
{
double mse = sqe / (PIXEL_MAX*PIXEL_MAX * size);
if( mse <= 0.0000000001 ) /* Max 100dB */
return 100;
return -10.0 * log10( mse );
}
static double calc_ssim_db( double ssim )
{
double inv_ssim = 1 - ssim;
if( inv_ssim <= 0.0000000001 ) /* Max 100dB */
return 100;
return -10.0 * log10( inv_ssim );
}
static int threadpool_wait_all( x264_t *h )
{
for( int i = 0; i < h->param.i_threads; i++ )
if( h->thread[i]->b_thread_active )
{
h->thread[i]->b_thread_active = 0;
if( (intptr_t)x264_threadpool_wait( h->threadpool, h->thread[i] ) < 0 )
return -1;
}
return 0;
}
static void frame_dump( x264_t *h )
{
FILE *f = x264_fopen( h->param.psz_dump_yuv, "r+b" );
if( !f )
return;
/* Wait for the threads to finish deblocking */
if( h->param.b_sliced_threads )
threadpool_wait_all( h );
/* Write the frame in display order */
int frame_size = FRAME_SIZE( h->param.i_height * h->param.i_width * sizeof(pixel) );
if( !fseek( f, (int64_t)h->fdec->i_frame * frame_size, SEEK_SET ) )
{
for( int p = 0; p < (CHROMA444 ? 3 : 1); p++ )
for( int y = 0; y < h->param.i_height; y++ )
fwrite( &h->fdec->plane[p][y*h->fdec->i_stride[p]], sizeof(pixel), h->param.i_width, f );
if( !CHROMA444 )
{
int cw = h->param.i_width>>1;
int ch = h->param.i_height>>CHROMA_V_SHIFT;
pixel *planeu = x264_malloc( 2 * (cw*ch*sizeof(pixel) + 32) );
if( planeu )
{
pixel *planev = planeu + cw*ch + 32/sizeof(pixel);
h->mc.plane_copy_deinterleave( planeu, cw, planev, cw, h->fdec->plane[1], h->fdec->i_stride[1], cw, ch );
fwrite( planeu, 1, cw*ch*sizeof(pixel), f );
fwrite( planev, 1, cw*ch*sizeof(pixel), f );
x264_free( planeu );
}
}
}
fclose( f );
}
/* Fill "default" values */
static void slice_header_init( x264_t *h, x264_slice_header_t *sh,
x264_sps_t *sps, x264_pps_t *pps,
int i_idr_pic_id, int i_frame, int i_qp )
{
x264_param_t *param = &h->param;
/* First we fill all fields */
sh->sps = sps;
sh->pps = pps;
sh->i_first_mb = 0;
sh->i_last_mb = h->mb.i_mb_count - 1;
sh->i_pps_id = pps->i_id;
sh->i_frame_num = i_frame;
sh->b_mbaff = PARAM_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 = 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;
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 );
if( !h->mb.b_direct_auto_read && sh->i_type == SLICE_TYPE_B )
{
if( h->fref[1][0]->i_poc_l0ref0 == h->fref[0][0]->i_poc )
{
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
{
h->mb.b_direct_auto_write = 0;
sh->b_direct_spatial_mv_pred = 1;
}
}
/* 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[0] = h->b_ref_reorder[0];
sh->b_ref_pic_list_reordering[1] = h->b_ref_reorder[1];
/* If the ref list isn't in the default order, construct reordering header */
for( int list = 0; list < 2; list++ )
{
if( sh->b_ref_pic_list_reordering[list] )
{
int pred_frame_num = i_frame;
for( int i = 0; i < h->i_ref[list]; i++ )
{
int diff = h->fref[list][i]->i_frame_num - pred_frame_num;
sh->ref_pic_list_order[list][i].idc = ( diff > 0 );
sh->ref_pic_list_order[list][i].arg = (abs(diff) - 1) & ((1 << sps->i_log2_max_frame_num) - 1);
pred_frame_num = h->fref[list][i]->i_frame_num;
}
}
}
sh->i_cabac_init_idc = param->i_cabac_init_idc;
sh->i_qp = SPEC_QP(i_qp);
sh->i_qp_delta = sh->i_qp - pps->i_pic_init_qp;
sh->b_sp_for_swidth = 0;
sh->i_qs_delta = 0;
int deblock_thresh = i_qp + 2 * X264_MIN(param->i_deblocking_filter_alphac0, param->i_deblocking_filter_beta);
/* If effective qp <= 15, deblocking would have no effect anyway */
if( param->b_deblocking_filter && (h->mb.b_variable_qp || 15 < deblock_thresh ) )
sh->i_disable_deblocking_filter_idc = param->b_sliced_threads ? 2 : 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 slice_header_write( bs_t *s, x264_slice_header_t *sh, int i_nal_ref_idc )
{
if( sh->b_mbaff )
{
int first_x = sh->i_first_mb % sh->sps->i_mb_width;
int first_y = sh->i_first_mb / sh->sps->i_mb_width;
assert( (first_y&1) == 0 );
bs_write_ue( s, (2*first_x + sh->sps->i_mb_width*(first_y&~1) + (first_y&1)) >> 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 & ((1<<sh->sps->i_log2_max_frame_num)-1) );
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 & ((1<<sh->sps->i_log2_max_poc_lsb)-1) );
if( sh->pps->b_pic_order && !sh->b_field_pic )
bs_write_se( s, sh->i_delta_poc_bottom );
}
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_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[0] );
if( sh->b_ref_pic_list_reordering[0] )
{
for( int 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[1] );
if( sh->b_ref_pic_list_reordering[1] )
{
for( int 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 );
}
}
sh->b_weighted_pred = 0;
if( sh->pps->b_weighted_pred && sh->i_type == SLICE_TYPE_P )
{
sh->b_weighted_pred = sh->weight[0][0].weightfn || sh->weight[0][1].weightfn || sh->weight[0][2].weightfn;
/* pred_weight_table() */
bs_write_ue( s, sh->weight[0][0].i_denom );
bs_write_ue( s, sh->weight[0][1].i_denom );
for( int i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
{
int luma_weight_l0_flag = !!sh->weight[i][0].weightfn;
int chroma_weight_l0_flag = !!sh->weight[i][1].weightfn || !!sh->weight[i][2].weightfn;
bs_write1( s, luma_weight_l0_flag );
if( luma_weight_l0_flag )
{
bs_write_se( s, sh->weight[i][0].i_scale );
bs_write_se( s, sh->weight[i][0].i_offset );
}
bs_write1( s, chroma_weight_l0_flag );
if( chroma_weight_l0_flag )
{
for( int j = 1; j < 3; j++ )
{
bs_write_se( s, sh->weight[i][j].i_scale );
bs_write_se( s, sh->weight[i][j].i_offset );
}
}
}
}
else if( sh->pps->b_weighted_bipred == 1 && sh->i_type == SLICE_TYPE_B )
{
/* TODO */
}
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, sh->i_mmco_command_count > 0 ); /* adaptive_ref_pic_marking_mode_flag */
if( sh->i_mmco_command_count > 0 )
{
for( int i = 0; i < sh->i_mmco_command_count; i++ )
{
bs_write_ue( s, 1 ); /* mark short term ref as unused */
bs_write_ue( s, sh->mmco[i].i_difference_of_pic_nums - 1 );
}
bs_write_ue( s, 0 ); /* end command list */
}
}
}
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 );
}
}
}
/* If we are within a reasonable distance of the end of the memory allocated for the bitstream, */
/* reallocate, adding an arbitrary amount of space. */
static int bitstream_check_buffer_internal( x264_t *h, int size, int b_cabac, int i_nal )
{
if( (b_cabac && (h->cabac.p_end - h->cabac.p < size)) ||
(h->out.bs.p_end - h->out.bs.p < size) )
{
int buf_size = h->out.i_bitstream + size;
uint8_t *buf = x264_malloc( buf_size );
if( !buf )
return -1;
int aligned_size = h->out.i_bitstream & ~15;
h->mc.memcpy_aligned( buf, h->out.p_bitstream, aligned_size );
memcpy( buf + aligned_size, h->out.p_bitstream + aligned_size, h->out.i_bitstream - aligned_size );
intptr_t delta = buf - h->out.p_bitstream;
h->out.bs.p_start += delta;
h->out.bs.p += delta;
h->out.bs.p_end = buf + buf_size;
h->cabac.p_start += delta;
h->cabac.p += delta;
h->cabac.p_end = buf + buf_size;
for( int i = 0; i <= i_nal; i++ )
h->out.nal[i].p_payload += delta;
x264_free( h->out.p_bitstream );
h->out.p_bitstream = buf;
h->out.i_bitstream = buf_size;
}
return 0;
}
static int bitstream_check_buffer( x264_t *h )
{
int max_row_size = (2500 << SLICE_MBAFF) * h->mb.i_mb_width;
return bitstream_check_buffer_internal( h, max_row_size, h->param.b_cabac, h->out.i_nal );
}
static int bitstream_check_buffer_filler( x264_t *h, int filler )
{
filler += 32; // add padding for safety
return bitstream_check_buffer_internal( h, filler, 0, -1 );
}
#if HAVE_THREAD
static void encoder_thread_init( x264_t *h )
{
if( h->param.i_sync_lookahead )
x264_lower_thread_priority( 10 );
}
#endif
/****************************************************************************
*
****************************************************************************
****************************** External API*********************************
****************************************************************************
*
****************************************************************************/
static int validate_parameters( x264_t *h, int b_open )
{
if( !h->param.pf_log )
{
x264_log_internal( X264_LOG_ERROR, "pf_log not set! did you forget to call x264_param_default?\n" );
return -1;
}
#if HAVE_MMX
if( b_open )
{
int cpuflags = x264_cpu_detect();
int fail = 0;
#ifdef __SSE__
if( !(cpuflags & X264_CPU_SSE) )
{
x264_log( h, X264_LOG_ERROR, "your cpu does not support SSE1, but x264 was compiled with asm\n");
fail = 1;
}
#else
if( !(cpuflags & X264_CPU_MMX2) )
{
x264_log( h, X264_LOG_ERROR, "your cpu does not support MMXEXT, but x264 was compiled with asm\n");
fail = 1;
}
#endif
if( fail )
{
x264_log( h, X264_LOG_ERROR, "to run x264, recompile without asm (configure --disable-asm)\n");
return -1;
}
}
#endif
#if HAVE_INTERLACED
h->param.b_interlaced = !!PARAM_INTERLACED;
#else
if( h->param.b_interlaced )
{
x264_log( h, X264_LOG_ERROR, "not compiled with interlaced support\n" );
return -1;
}
#endif
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;
}
int i_csp = h->param.i_csp & X264_CSP_MASK;
#if X264_CHROMA_FORMAT
if( CHROMA_FORMAT != CHROMA_420 && i_csp >= X264_CSP_I420 && i_csp < X264_CSP_I422 )
{
x264_log( h, X264_LOG_ERROR, "not compiled with 4:2:0 support\n" );
return -1;
}
else if( CHROMA_FORMAT != CHROMA_422 && i_csp >= X264_CSP_I422 && i_csp < X264_CSP_I444 )
{
x264_log( h, X264_LOG_ERROR, "not compiled with 4:2:2 support\n" );
return -1;
}
else if( CHROMA_FORMAT != CHROMA_444 && i_csp >= X264_CSP_I444 && i_csp <= X264_CSP_RGB )
{
x264_log( h, X264_LOG_ERROR, "not compiled with 4:4:4 support\n" );
return -1;
}
#endif
if( i_csp <= X264_CSP_NONE || i_csp >= X264_CSP_MAX )
{
x264_log( h, X264_LOG_ERROR, "invalid CSP (only I420/YV12/NV12/NV21/I422/YV16/NV16/YUYV/UYVY/"
"I444/YV24/BGR/BGRA/RGB supported)\n" );
return -1;
}
int w_mod = i_csp < X264_CSP_I444 ? 2 : 1;
int h_mod = (i_csp < X264_CSP_I422 ? 2 : 1) << PARAM_INTERLACED;
if( h->param.i_width % w_mod )
{
x264_log( h, X264_LOG_ERROR, "width not divisible by %d (%dx%d)\n",
w_mod, h->param.i_width, h->param.i_height );
return -1;
}
if( h->param.i_height % h_mod )
{
x264_log( h, X264_LOG_ERROR, "height not divisible by %d (%dx%d)\n",
h_mod, h->param.i_width, h->param.i_height );
return -1;
}
if( h->param.crop_rect.i_left >= h->param.i_width ||
h->param.crop_rect.i_right >= h->param.i_width ||
h->param.crop_rect.i_top >= h->param.i_height ||
h->param.crop_rect.i_bottom >= h->param.i_height ||
h->param.crop_rect.i_left + h->param.crop_rect.i_right >= h->param.i_width ||
h->param.crop_rect.i_top + h->param.crop_rect.i_bottom >= h->param.i_height )
{
x264_log( h, X264_LOG_ERROR, "invalid crop-rect %u,%u,%u,%u\n", h->param.crop_rect.i_left,
h->param.crop_rect.i_top, h->param.crop_rect.i_right, h->param.crop_rect.i_bottom );
return -1;
}
if( h->param.crop_rect.i_left % w_mod || h->param.crop_rect.i_right % w_mod ||
h->param.crop_rect.i_top % h_mod || h->param.crop_rect.i_bottom % h_mod )
{
x264_log( h, X264_LOG_ERROR, "crop-rect %u,%u,%u,%u not divisible by %dx%d\n", h->param.crop_rect.i_left,
h->param.crop_rect.i_top, h->param.crop_rect.i_right, h->param.crop_rect.i_bottom, w_mod, h_mod );
return -1;
}
if( h->param.vui.i_sar_width <= 0 || h->param.vui.i_sar_height <= 0 )
{
h->param.vui.i_sar_width = 0;
h->param.vui.i_sar_height = 0;
}
if( h->param.i_threads == X264_THREADS_AUTO )
{
h->param.i_threads = x264_cpu_num_processors() * (h->param.b_sliced_threads?2:3)/2;
/* Avoid too many threads as they don't improve performance and
* complicate VBV. Capped at an arbitrary 2 rows per thread. */
int max_threads = X264_MAX( 1, (h->param.i_height+15)/16 / 2 );
h->param.i_threads = X264_MIN( h->param.i_threads, max_threads );
}
int max_sliced_threads = X264_MAX( 1, (h->param.i_height+15)/16 / 4 );
if( h->param.i_threads > 1 )
{
#if !HAVE_THREAD
x264_log( h, X264_LOG_WARNING, "not compiled with thread support!\n");
h->param.i_threads = 1;
#endif
/* Avoid absurdly small thread slices as they can reduce performance
* and VBV compliance. Capped at an arbitrary 4 rows per thread. */
if( h->param.b_sliced_threads )
h->param.i_threads = X264_MIN( h->param.i_threads, max_sliced_threads );
}
h->param.i_threads = x264_clip3( h->param.i_threads, 1, X264_THREAD_MAX );
if( h->param.i_threads == 1 )
{
h->param.b_sliced_threads = 0;
h->param.i_lookahead_threads = 1;
}
h->i_thread_frames = h->param.b_sliced_threads ? 1 : h->param.i_threads;
if( h->i_thread_frames > 1 )
h->param.nalu_process = NULL;
if( h->param.b_opencl )
{
#if !HAVE_OPENCL
x264_log( h, X264_LOG_WARNING, "OpenCL: not compiled with OpenCL support, disabling\n" );
h->param.b_opencl = 0;
#elif BIT_DEPTH > 8
x264_log( h, X264_LOG_WARNING, "OpenCL lookahead does not support high bit depth, disabling opencl\n" );
h->param.b_opencl = 0;
#else
if( h->param.i_width < 32 || h->param.i_height < 32 )
{
x264_log( h, X264_LOG_WARNING, "OpenCL: frame size is too small, disabling opencl\n" );
h->param.b_opencl = 0;
}
#endif
if( h->param.opencl_device_id && h->param.i_opencl_device )
{
x264_log( h, X264_LOG_WARNING, "OpenCL: device id and device skip count configured; dropping skip\n" );
h->param.i_opencl_device = 0;
}
}
h->param.i_keyint_max = x264_clip3( h->param.i_keyint_max, 1, X264_KEYINT_MAX_INFINITE );
if( h->param.i_keyint_max == 1 )
{
h->param.b_intra_refresh = 0;
h->param.analyse.i_weighted_pred = 0;
h->param.i_frame_reference = 1;
h->param.i_dpb_size = 1;
}
if( h->param.i_frame_packing < -1 || h->param.i_frame_packing > 7 )
{
x264_log( h, X264_LOG_WARNING, "ignoring unknown frame packing value\n" );
h->param.i_frame_packing = -1;
}
if( h->param.i_frame_packing == 7 &&
((h->param.i_width - h->param.crop_rect.i_left - h->param.crop_rect.i_right) % 3 ||
(h->param.i_height - h->param.crop_rect.i_top - h->param.crop_rect.i_bottom) % 3) )
{
x264_log( h, X264_LOG_ERROR, "cropped resolution %dx%d not compatible with tile format frame packing\n",
h->param.i_width - h->param.crop_rect.i_left - h->param.crop_rect.i_right,
h->param.i_height - h->param.crop_rect.i_top - h->param.crop_rect.i_bottom );
return -1;
}
/* Detect default ffmpeg settings and terminate with an error. */
if( b_open )
{
int score = 0;
score += h->param.analyse.i_me_range == 0;
score += h->param.rc.i_qp_step == 3;
score += h->param.i_keyint_max == 12;
score += h->param.rc.i_qp_min == 2;
score += h->param.rc.i_qp_max == 31;
score += h->param.rc.f_qcompress == 0.5;
score += fabs(h->param.rc.f_ip_factor - 1.25) < 0.01;
score += fabs(h->param.rc.f_pb_factor - 1.25) < 0.01;
score += h->param.analyse.inter == 0 && h->param.analyse.i_subpel_refine == 8;
if( score >= 5 )
{
x264_log( h, X264_LOG_ERROR, "broken ffmpeg default settings detected\n" );
x264_log( h, X264_LOG_ERROR, "use an encoding preset (e.g. -vpre medium)\n" );
x264_log( h, X264_LOG_ERROR, "preset usage: -vpre <speed> -vpre <profile>\n" );
x264_log( h, X264_LOG_ERROR, "speed presets are listed in x264 --help\n" );
x264_log( h, X264_LOG_ERROR, "profile is optional; x264 defaults to high\n" );
return -1;
}
}
if( h->param.rc.i_rc_method < 0 || h->param.rc.i_rc_method > 2 )
{
x264_log( h, X264_LOG_ERROR, "no ratecontrol method specified\n" );
return -1;
}
if( PARAM_INTERLACED )
h->param.b_pic_struct = 1;
if( h->param.i_avcintra_class )
{
if( BIT_DEPTH != 10 )
{
x264_log( h, X264_LOG_ERROR, "%2d-bit AVC-Intra is not widely compatible\n", BIT_DEPTH );
x264_log( h, X264_LOG_ERROR, "10-bit x264 is required to encode AVC-Intra\n" );
return -1;
}
int type = h->param.i_avcintra_class == 200 ? 2 :
h->param.i_avcintra_class == 100 ? 1 :
h->param.i_avcintra_class == 50 ? 0 : -1;
if( type < 0 )
{
x264_log( h, X264_LOG_ERROR, "Invalid AVC-Intra class\n" );
return -1;
}
/* [50/100/200][res][fps] */
static const struct
{
uint16_t fps_num;
uint16_t fps_den;
uint8_t interlaced;
uint16_t frame_size;
const uint8_t *cqm_4ic;
const uint8_t *cqm_8iy;
} avcintra_lut[3][2][7] =
{
{{{ 60000, 1001, 0, 912, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy },
{ 50, 1, 0, 1100, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy },
{ 30000, 1001, 0, 912, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy },
{ 25, 1, 0, 1100, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy },
{ 24000, 1001, 0, 912, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy }},
{{ 30000, 1001, 1, 1820, x264_cqm_avci50_4ic, x264_cqm_avci50_1080i_8iy },
{ 25, 1, 1, 2196, x264_cqm_avci50_4ic, x264_cqm_avci50_1080i_8iy },
{ 60000, 1001, 0, 1820, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy },
{ 30000, 1001, 0, 1820, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy },
{ 50, 1, 0, 2196, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy },
{ 25, 1, 0, 2196, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy },
{ 24000, 1001, 0, 1820, x264_cqm_avci50_4ic, x264_cqm_avci50_p_8iy }}},
{{{ 60000, 1001, 0, 1848, x264_cqm_avci100_720p_4ic, x264_cqm_avci100_720p_8iy },
{ 50, 1, 0, 2224, x264_cqm_avci100_720p_4ic, x264_cqm_avci100_720p_8iy },
{ 30000, 1001, 0, 1848, x264_cqm_avci100_720p_4ic, x264_cqm_avci100_720p_8iy },
{ 25, 1, 0, 2224, x264_cqm_avci100_720p_4ic, x264_cqm_avci100_720p_8iy },
{ 24000, 1001, 0, 1848, x264_cqm_avci100_720p_4ic, x264_cqm_avci100_720p_8iy }},
{{ 30000, 1001, 1, 3692, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080i_8iy },
{ 25, 1, 1, 4444, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080i_8iy },
{ 60000, 1001, 0, 3692, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy },
{ 30000, 1001, 0, 3692, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy },
{ 50, 1, 0, 4444, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy },
{ 25, 1, 0, 4444, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy },
{ 24000, 1001, 0, 3692, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy }}},
{{{ 60000, 1001, 0, 3724, x264_cqm_avci100_720p_4ic, x264_cqm_avci100_720p_8iy },
{ 50, 1, 0, 4472, x264_cqm_avci100_720p_4ic, x264_cqm_avci100_720p_8iy }},
{{ 30000, 1001, 1, 7444, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080i_8iy },
{ 25, 1, 1, 8940, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080i_8iy },
{ 60000, 1001, 0, 7444, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy },
{ 30000, 1001, 0, 7444, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy },
{ 50, 1, 0, 8940, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy },
{ 25, 1, 0, 8940, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy },
{ 24000, 1001, 0, 7444, x264_cqm_avci100_1080_4ic, x264_cqm_avci100_1080p_8iy }}}
};
int res = -1;
if( i_csp >= X264_CSP_I420 && i_csp < X264_CSP_I422 && !type )
{
if( h->param.i_width == 1440 && h->param.i_height == 1080 ) res = 1;
else if( h->param.i_width == 960 && h->param.i_height == 720 ) res = 0;
}
else if( i_csp >= X264_CSP_I422 && i_csp < X264_CSP_I444 && type )
{
if( h->param.i_width == 1920 && h->param.i_height == 1080 ) res = 1;
else if( h->param.i_width == 1280 && h->param.i_height == 720 ) res = 0;
}
else
{
x264_log( h, X264_LOG_ERROR, "Invalid colorspace for AVC-Intra %d\n", h->param.i_avcintra_class );
return -1;
}
if( res < 0 )
{
x264_log( h, X264_LOG_ERROR, "Resolution %dx%d invalid for AVC-Intra %d\n",
h->param.i_width, h->param.i_height, h->param.i_avcintra_class );
return -1;
}
if( h->param.nalu_process )
{
x264_log( h, X264_LOG_ERROR, "nalu_process is not supported in AVC-Intra mode\n" );
return -1;
}
if( !h->param.b_repeat_headers )
{
x264_log( h, X264_LOG_ERROR, "Separate headers not supported in AVC-Intra mode\n" );
return -1;
}
int i;
uint32_t fps_num = h->param.i_fps_num, fps_den = h->param.i_fps_den;
x264_reduce_fraction( &fps_num, &fps_den );
for( i = 0; i < 7; i++ )
{
if( avcintra_lut[type][res][i].fps_num == fps_num &&
avcintra_lut[type][res][i].fps_den == fps_den &&
avcintra_lut[type][res][i].interlaced == PARAM_INTERLACED )
{
break;
}
}
if( i == 7 )
{
x264_log( h, X264_LOG_ERROR, "FPS %d/%d%c not compatible with AVC-Intra\n",
h->param.i_fps_num, h->param.i_fps_den, PARAM_INTERLACED ? 'i' : 'p' );
return -1;
}
h->param.i_keyint_max = 1;
h->param.b_intra_refresh = 0;
h->param.analyse.i_weighted_pred = 0;
h->param.i_frame_reference = 1;
h->param.i_dpb_size = 1;
h->param.b_bluray_compat = 0;
h->param.b_vfr_input = 0;
h->param.b_aud = 1;
h->param.vui.i_chroma_loc = 0;
h->param.i_nal_hrd = X264_NAL_HRD_NONE;
h->param.b_deblocking_filter = 0;
h->param.b_stitchable = 1;
h->param.b_pic_struct = 0;
h->param.analyse.b_transform_8x8 = 1;
h->param.analyse.intra = X264_ANALYSE_I8x8;
h->param.analyse.i_chroma_qp_offset = res && type ? 3 : 4;
h->param.b_cabac = !type;
h->param.rc.i_vbv_buffer_size = avcintra_lut[type][res][i].frame_size;
h->param.rc.i_vbv_max_bitrate =
h->param.rc.i_bitrate = h->param.rc.i_vbv_buffer_size * fps_num / fps_den;
h->param.rc.i_rc_method = X264_RC_ABR;
h->param.rc.f_vbv_buffer_init = 1.0;
h->param.rc.b_filler = 1;
h->param.i_cqm_preset = X264_CQM_CUSTOM;
memcpy( h->param.cqm_4iy, x264_cqm_jvt4i, sizeof(h->param.cqm_4iy) );
memcpy( h->param.cqm_4ic, avcintra_lut[type][res][i].cqm_4ic, sizeof(h->param.cqm_4ic) );
memcpy( h->param.cqm_8iy, avcintra_lut[type][res][i].cqm_8iy, sizeof(h->param.cqm_8iy) );
/* Need exactly 10 slices of equal MB count... why? $deity knows... */
h->param.i_slice_max_mbs = ((h->param.i_width + 15) / 16) * ((h->param.i_height + 15) / 16) / 10;
h->param.i_slice_max_size = 0;
/* The slice structure only allows a maximum of 2 threads for 1080i/p
* and 1 or 5 threads for 720p */
if( h->param.b_sliced_threads )
{
if( res )
h->param.i_threads = X264_MIN( 2, h->param.i_threads );
else
{
h->param.i_threads = X264_MIN( 5, h->param.i_threads );
if( h->param.i_threads < 5 )
h->param.i_threads = 1;
}
}
if( type )
h->param.vui.i_sar_width = h->param.vui.i_sar_height = 1;
else
{
h->param.vui.i_sar_width = 4;
h->param.vui.i_sar_height = 3;
}
/* Official encoder doesn't appear to go under 13
* and Avid cannot handle negative QPs */
h->param.rc.i_qp_min = X264_MAX( h->param.rc.i_qp_min, QP_BD_OFFSET + 1 );
}
h->param.rc.f_rf_constant = x264_clip3f( h->param.rc.f_rf_constant, -QP_BD_OFFSET, 51 );
h->param.rc.f_rf_constant_max = x264_clip3f( h->param.rc.f_rf_constant_max, -QP_BD_OFFSET, 51 );
h->param.rc.i_qp_constant = x264_clip3( h->param.rc.i_qp_constant, -1, QP_MAX );
h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 0, 11 );
h->param.rc.f_ip_factor = X264_MAX( h->param.rc.f_ip_factor, 0.01f );
h->param.rc.f_pb_factor = X264_MAX( h->param.rc.f_pb_factor, 0.01f );
if( h->param.rc.i_rc_method == X264_RC_CRF )
{
h->param.rc.i_qp_constant = h->param.rc.f_rf_constant + QP_BD_OFFSET;
h->param.rc.i_bitrate = 0;
}
if( b_open && (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_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.b_psy = 0;
h->param.i_bframe = 0;
/* 8x8dct is not useful without RD in CAVLC lossless */
if( !h->param.b_cabac && h->param.analyse.i_subpel_refine < 6 )
h->param.analyse.b_transform_8x8 = 0;
h->param.analyse.inter &= ~X264_ANALYSE_I8x8;
h->param.analyse.intra &= ~X264_ANALYSE_I8x8;
}
if( i_csp >= X264_CSP_I444 && h->param.b_cabac )
{
/* Disable 8x8dct during 4:4:4+CABAC encoding for compatibility with libavcodec */
h->param.analyse.b_transform_8x8 = 0;
}
if( h->param.rc.i_rc_method == X264_RC_CQP )
{
float qp_p = h->param.rc.i_qp_constant;
float qp_i = qp_p - 6*log2f( h->param.rc.f_ip_factor );
float qp_b = qp_p + 6*log2f( h->param.rc.f_pb_factor );
if( qp_p < 0 )
{
x264_log( h, X264_LOG_ERROR, "qp not specified\n" );
return -1;
}
h->param.rc.i_qp_min = x264_clip3( (int)(X264_MIN3( qp_p, qp_i, qp_b )), 0, QP_MAX );
h->param.rc.i_qp_max = x264_clip3( (int)(X264_MAX3( qp_p, qp_i, qp_b ) + .999), 0, QP_MAX );
h->param.rc.i_aq_mode = 0;
h->param.rc.b_mb_tree = 0;
h->param.rc.i_bitrate = 0;
}
h->param.rc.i_qp_max = x264_clip3( h->param.rc.i_qp_max, 0, QP_MAX );
h->param.rc.i_qp_min = x264_clip3( h->param.rc.i_qp_min, 0, h->param.rc.i_qp_max );
h->param.rc.i_qp_step = x264_clip3( h->param.rc.i_qp_step, 2, QP_MAX );
h->param.rc.i_bitrate = x264_clip3( h->param.rc.i_bitrate, 0, 2000000 );
if( h->param.rc.i_rc_method == X264_RC_ABR && !h->param.rc.i_bitrate )
{
x264_log( h, X264_LOG_ERROR, "bitrate not specified\n" );
return -1;
}
h->param.rc.i_vbv_buffer_size = x264_clip3( h->param.rc.i_vbv_buffer_size, 0, 2000000 );
h->param.rc.i_vbv_max_bitrate = x264_clip3( h->param.rc.i_vbv_max_bitrate, 0, 2000000 );
h->param.rc.f_vbv_buffer_init = x264_clip3f( h->param.rc.f_vbv_buffer_init, 0, 2000000 );
if( h->param.rc.i_vbv_buffer_size )
{
if( h->param.rc.i_rc_method == X264_RC_CQP )
{
x264_log( h, X264_LOG_WARNING, "VBV is incompatible with constant QP, ignored.\n" );
h->param.rc.i_vbv_max_bitrate = 0;
h->param.rc.i_vbv_buffer_size = 0;
}
else if( h->param.rc.i_vbv_max_bitrate == 0 )
{
if( h->param.rc.i_rc_method == X264_RC_ABR )
{
x264_log( h, X264_LOG_WARNING, "VBV maxrate unspecified, assuming CBR\n" );
h->param.rc.i_vbv_max_bitrate = h->param.rc.i_bitrate;
}
else
{
x264_log( h, X264_LOG_WARNING, "VBV bufsize set but maxrate unspecified, ignored\n" );
h->param.rc.i_vbv_buffer_size = 0;
}
}
else if( h->param.rc.i_vbv_max_bitrate < h->param.rc.i_bitrate &&
h->param.rc.i_rc_method == X264_RC_ABR )
{
x264_log( h, X264_LOG_WARNING, "max bitrate less than average bitrate, assuming CBR\n" );
h->param.rc.i_bitrate = h->param.rc.i_vbv_max_bitrate;
}
}
else if( h->param.rc.i_vbv_max_bitrate )
{
x264_log( h, X264_LOG_WARNING, "VBV maxrate specified, but no bufsize, ignored\n" );
h->param.rc.i_vbv_max_bitrate = 0;
}
h->param.i_slice_max_size = X264_MAX( h->param.i_slice_max_size, 0 );
h->param.i_slice_max_mbs = X264_MAX( h->param.i_slice_max_mbs, 0 );
h->param.i_slice_min_mbs = X264_MAX( h->param.i_slice_min_mbs, 0 );
if( h->param.i_slice_max_mbs )
h->param.i_slice_min_mbs = X264_MIN( h->param.i_slice_min_mbs, h->param.i_slice_max_mbs/2 );
else if( !h->param.i_slice_max_size )
h->param.i_slice_min_mbs = 0;
if( PARAM_INTERLACED && h->param.i_slice_min_mbs )
{
x264_log( h, X264_LOG_WARNING, "interlace + slice-min-mbs is not implemented\n" );
h->param.i_slice_min_mbs = 0;
}
int mb_width = (h->param.i_width+15)/16;
if( h->param.i_slice_min_mbs > mb_width )
{
x264_log( h, X264_LOG_WARNING, "slice-min-mbs > row mb size (%d) not implemented\n", mb_width );
h->param.i_slice_min_mbs = mb_width;
}
int max_slices = (h->param.i_height+((16<<PARAM_INTERLACED)-1))/(16<<PARAM_INTERLACED);
if( h->param.b_sliced_threads )
h->param.i_slice_count = x264_clip3( h->param.i_threads, 0, max_slices );
else
{
h->param.i_slice_count = x264_clip3( h->param.i_slice_count, 0, max_slices );
if( h->param.i_slice_max_mbs || h->param.i_slice_max_size )
h->param.i_slice_count = 0;
}
if( h->param.i_slice_count_max > 0 )
h->param.i_slice_count_max = X264_MAX( h->param.i_slice_count, h->param.i_slice_count_max );
if( h->param.b_bluray_compat )
{
h->param.i_bframe_pyramid = X264_MIN( X264_B_PYRAMID_STRICT, h->param.i_bframe_pyramid );
h->param.i_bframe = X264_MIN( h->param.i_bframe, 3 );
h->param.b_aud = 1;
h->param.i_nal_hrd = X264_MAX( h->param.i_nal_hrd, X264_NAL_HRD_VBR );
h->param.i_slice_max_size = 0;
h->param.i_slice_max_mbs = 0;
h->param.b_intra_refresh = 0;
h->param.i_frame_reference = X264_MIN( h->param.i_frame_reference, 6 );
h->param.i_dpb_size = X264_MIN( h->param.i_dpb_size, 6 );
/* Don't use I-frames, because Blu-ray treats them the same as IDR. */
h->param.i_keyint_min = 1;
/* Due to the proliferation of broken players that don't handle dupes properly. */
h->param.analyse.i_weighted_pred = X264_MIN( h->param.analyse.i_weighted_pred, X264_WEIGHTP_SIMPLE );
if( h->param.b_fake_interlaced )
h->param.b_pic_struct = 1;
}
h->param.i_frame_reference = x264_clip3( h->param.i_frame_reference, 1, X264_REF_MAX );
h->param.i_dpb_size = x264_clip3( h->param.i_dpb_size, 1, X264_REF_MAX );
if( h->param.i_scenecut_threshold < 0 )
h->param.i_scenecut_threshold = 0;
h->param.analyse.i_direct_mv_pred = x264_clip3( h->param.analyse.i_direct_mv_pred, X264_DIRECT_PRED_NONE, X264_DIRECT_PRED_AUTO );
if( !h->param.analyse.i_subpel_refine && h->param.analyse.i_direct_mv_pred > X264_DIRECT_PRED_SPATIAL )
{
x264_log( h, X264_LOG_WARNING, "subme=0 + direct=temporal is not supported\n" );
h->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
}
h->param.i_bframe = x264_clip3( h->param.i_bframe, 0, X264_MIN( X264_BFRAME_MAX, h->param.i_keyint_max-1 ) );
h->param.i_bframe_bias = x264_clip3( h->param.i_bframe_bias, -90, 100 );
if( h->param.i_bframe <= 1 )
h->param.i_bframe_pyramid = X264_B_PYRAMID_NONE;
h->param.i_bframe_pyramid = x264_clip3( h->param.i_bframe_pyramid, X264_B_PYRAMID_NONE, X264_B_PYRAMID_NORMAL );
h->param.i_bframe_adaptive = x264_clip3( h->param.i_bframe_adaptive, X264_B_ADAPT_NONE, X264_B_ADAPT_TRELLIS );
if( !h->param.i_bframe )
{
h->param.i_bframe_adaptive = X264_B_ADAPT_NONE;
h->param.analyse.i_direct_mv_pred = 0;
h->param.analyse.b_weighted_bipred = 0;