-/*\r
- Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>\r
- \r
- This program is free software; you can redistribute it and/or modify\r
- it under the terms of the GNU General Public License as published by\r
- the Free Software Foundation; either version 2 of the License, or\r
- (at your option) any later version.\r
- \r
- This program is distributed in the hope that it will be useful,\r
- but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- GNU General Public License for more details.\r
- \r
- You should have received a copy of the GNU General Public License\r
- along with this program; if not, write to the Free Software\r
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\r
-*/\r
-\r
-#include "hb.h"\r
-#include "ffmpeg/avcodec.h"\r
-#include "mpeg2dec/mpeg2.h"\r
-\r
-#define SUPPRESS_AV_LOG\r
-\r
-#define YADIF_MODE_DEFAULT -1\r
-#define YADIF_PARITY_DEFAULT -1\r
-\r
-#define MCDEINT_MODE_DEFAULT -1\r
-#define MCDEINT_QP_DEFAULT 1\r
-\r
-#define ABS(a) ((a) > 0 ? (a) : (-(a)))\r
-#define MIN3(a,b,c) MIN(MIN(a,b),c)\r
-#define MAX3(a,b,c) MAX(MAX(a,b),c)\r
-\r
-struct hb_filter_private_s \r
-{\r
- int pix_fmt;\r
- int width[3];\r
- int height[3];\r
-\r
- int yadif_mode;\r
- int yadif_parity;\r
- int yadif_ready;\r
- \r
- uint8_t * yadif_ref[4][3]; \r
- int yadif_ref_stride[3];\r
- \r
- int mcdeint_mode;\r
- int mcdeint_qp;\r
- \r
- int mcdeint_outbuf_size;\r
- uint8_t * mcdeint_outbuf;\r
- AVCodecContext * mcdeint_avctx_enc;\r
- AVFrame * mcdeint_frame;\r
- AVFrame * mcdeint_frame_dec;\r
- \r
- AVPicture pic_in;\r
- AVPicture pic_out; \r
- hb_buffer_t * buf_out[2];\r
- hb_buffer_t * buf_settings;\r
-};\r
-\r
-hb_filter_private_t * hb_deinterlace_init( int pix_fmt, \r
- int width, \r
- int height,\r
- char * settings );\r
-\r
-int hb_deinterlace_work( const hb_buffer_t * buf_in,\r
- hb_buffer_t ** buf_out,\r
- int pix_fmt,\r
- int width, \r
- int height,\r
- hb_filter_private_t * pv );\r
-\r
-void hb_deinterlace_close( hb_filter_private_t * pv );\r
-\r
-hb_filter_object_t hb_filter_deinterlace =\r
-{ \r
- FILTER_DEINTERLACE,\r
- "Deinterlace (ffmpeg or yadif/mcdeint)",\r
- NULL,\r
- hb_deinterlace_init,\r
- hb_deinterlace_work,\r
- hb_deinterlace_close,\r
-};\r
-\r
-static void yadif_store_ref( const uint8_t ** pic, \r
- hb_filter_private_t * pv )\r
-{\r
- memcpy( pv->yadif_ref[3], \r
- pv->yadif_ref[0], \r
- sizeof(uint8_t *)*3 );\r
- \r
- memmove( pv->yadif_ref[0], \r
- pv->yadif_ref[1], \r
- sizeof(uint8_t *)*3*3 ); \r
- \r
- int i;\r
- for( i = 0; i < 3; i++ )\r
- {\r
- const uint8_t * src = pic[i];\r
- uint8_t * ref = pv->yadif_ref[2][i];\r
- \r
- int w = pv->width[i];\r
- int h = pv->height[i];\r
- int ref_stride = pv->yadif_ref_stride[i];\r
- \r
- int y;\r
- for( y = 0; y < pv->height[i]; y++ )\r
- {\r
- memcpy(ref, src, w);\r
- src = (uint8_t*)src + w;\r
- ref = (uint8_t*)ref + ref_stride;\r
- }\r
- }\r
-}\r
-\r
-static void yadif_filter_line( uint8_t *dst,\r
- uint8_t *prev,\r
- uint8_t *cur, \r
- uint8_t *next,\r
- int plane,\r
- int parity,\r
- hb_filter_private_t * pv )\r
-{\r
- uint8_t *prev2 = parity ? prev : cur ;\r
- uint8_t *next2 = parity ? cur : next;\r
- \r
- int w = pv->width[plane];\r
- int refs = pv->yadif_ref_stride[plane];\r
- \r
- int x;\r
- for( x = 0; x < w; x++)\r
- {\r
- int c = cur[-refs];\r
- int d = (prev2[0] + next2[0])>>1;\r
- int e = cur[+refs];\r
- int temporal_diff0 = ABS(prev2[0] - next2[0]);\r
- int temporal_diff1 = ( ABS(prev[-refs] - c) + ABS(prev[+refs] - e) ) >> 1;\r
- int temporal_diff2 = ( ABS(next[-refs] - c) + ABS(next[+refs] - e) ) >> 1;\r
- int diff = MAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2);\r
- int spatial_pred = (c+e)>>1;\r
- int spatial_score = ABS(cur[-refs-1] - cur[+refs-1]) + ABS(c-e) +\r
- ABS(cur[-refs+1] - cur[+refs+1]) - 1;\r
-\r
-#define YADIF_CHECK(j)\\r
- { int score = ABS(cur[-refs-1+j] - cur[+refs-1-j])\\r
- + ABS(cur[-refs +j] - cur[+refs -j])\\r
- + ABS(cur[-refs+1+j] - cur[+refs+1-j]);\\r
- if( score < spatial_score ){\\r
- spatial_score = score;\\r
- spatial_pred = (cur[-refs +j] + cur[+refs -j])>>1;\\r
- \r
- YADIF_CHECK(-1) YADIF_CHECK(-2) }} }}\r
- YADIF_CHECK( 1) YADIF_CHECK( 2) }} }}\r
-\r
- if( pv->yadif_mode < 2 )\r
- {\r
- int b = (prev2[-2*refs] + next2[-2*refs])>>1;\r
- int f = (prev2[+2*refs] + next2[+2*refs])>>1;\r
- \r
- int max = MAX3(d-e, d-c, MIN(b-c, f-e));\r
- int min = MIN3(d-e, d-c, MAX(b-c, f-e));\r
-\r
- diff = MAX3( diff, min, -max );\r
- }\r
-\r
- if( spatial_pred > d + diff )\r
- {\r
- spatial_pred = d + diff;\r
- }\r
- else if( spatial_pred < d - diff )\r
- {\r
- spatial_pred = d - diff;\r
- }\r
-\r
- dst[0] = spatial_pred;\r
-\r
- dst++;\r
- cur++;\r
- prev++;\r
- next++;\r
- prev2++;\r
- next2++;\r
- }\r
-}\r
-\r
-static void yadif_filter( uint8_t ** dst,\r
- int parity,\r
- int tff,\r
- hb_filter_private_t * pv )\r
-{\r
- int i;\r
- for( i = 0; i < 3; i++ )\r
- { \r
- int w = pv->width[i];\r
- int h = pv->height[i];\r
- int ref_stride = pv->yadif_ref_stride[i];\r
- \r
- int y;\r
- for( y = 0; y < h; y++ )\r
- {\r
- if( (y ^ parity) & 1 )\r
- {\r
- uint8_t *prev = &pv->yadif_ref[0][i][y*ref_stride];\r
- uint8_t *cur = &pv->yadif_ref[1][i][y*ref_stride];\r
- uint8_t *next = &pv->yadif_ref[2][i][y*ref_stride];\r
- uint8_t *dst2 = &dst[i][y*w];\r
- \r
- yadif_filter_line( dst2, prev, cur, next, i, parity ^ tff, pv );\r
- }\r
- else\r
- {\r
- memcpy( &dst[i][y*w], \r
- &pv->yadif_ref[1][i][y*ref_stride], \r
- w * sizeof(uint8_t) );\r
- }\r
- }\r
- }\r
-}\r
-\r
-static void mcdeint_filter( uint8_t ** dst, \r
- uint8_t ** src,\r
- int parity,\r
- hb_filter_private_t * pv )\r
-{\r
- int x, y, i;\r
- int out_size; \r
- \r
-#ifdef SUPPRESS_AV_LOG\r
- /* TODO: temporarily change log level to suppress obnoxious debug output */\r
- int loglevel = av_log_get_level();\r
- av_log_set_level( AV_LOG_QUIET );\r
-#endif\r
- \r
- for( i=0; i<3; i++ )\r
- {\r
- pv->mcdeint_frame->data[i] = src[i];\r
- pv->mcdeint_frame->linesize[i] = pv->width[i];\r
- } \r
- pv->mcdeint_avctx_enc->me_cmp = FF_CMP_SAD;\r
- pv->mcdeint_avctx_enc->me_sub_cmp = FF_CMP_SAD;\r
- pv->mcdeint_frame->quality = pv->mcdeint_qp * FF_QP2LAMBDA;\r
- \r
- out_size = avcodec_encode_video( pv->mcdeint_avctx_enc, \r
- pv->mcdeint_outbuf, \r
- pv->mcdeint_outbuf_size, \r
- pv->mcdeint_frame );\r
- \r
- pv->mcdeint_frame_dec = pv->mcdeint_avctx_enc->coded_frame;\r
- \r
- for( i = 0; i < 3; i++ )\r
- {\r
- int w = pv->width[i];\r
- int h = pv->height[i];\r
- int fils = pv->mcdeint_frame_dec->linesize[i];\r
- int srcs = pv->width[i];\r
- \r
- for( y = 0; y < h; y++ )\r
- {\r
- if( (y ^ parity) & 1 )\r
- {\r
- for( x = 0; x < w; x++ )\r
- {\r
- if( (x-2)+(y-1)*w >= 0 && (x+2)+(y+1)*w < w*h )\r
- { \r
- uint8_t * filp = \r
- &pv->mcdeint_frame_dec->data[i][x + y*fils];\r
- uint8_t * srcp = &src[i][x + y*srcs];\r
-\r
- int diff0 = filp[-fils] - srcp[-srcs];\r
- int diff1 = filp[+fils] - srcp[+srcs];\r
- \r
- int spatial_score = \r
- ABS(srcp[-srcs-1] - srcp[+srcs-1])\r
- + ABS(srcp[-srcs ] - srcp[+srcs ])\r
- + ABS(srcp[-srcs+1] - srcp[+srcs+1]) - 1;\r
- \r
- int temp = filp[0];\r
- \r
-#define MCDEINT_CHECK(j)\\r
- { int score = ABS(srcp[-srcs-1+j] - srcp[+srcs-1-j])\\r
- + ABS(srcp[-srcs +j] - srcp[+srcs -j])\\r
- + ABS(srcp[-srcs+1+j] - srcp[+srcs+1-j]);\\r
- if( score < spatial_score ) {\\r
- spatial_score = score;\\r
- diff0 = filp[-fils+j] - srcp[-srcs+j];\\r
- diff1 = filp[+fils-j] - srcp[+srcs-j];\r
- \r
- MCDEINT_CHECK(-1) MCDEINT_CHECK(-2) }} }}\r
- MCDEINT_CHECK( 1) MCDEINT_CHECK( 2) }} }}\r
-\r
- if(diff0 + diff1 > 0)\r
- {\r
- temp -= (diff0 + diff1 - \r
- ABS( ABS(diff0) - ABS(diff1) ) / 2) / 2;\r
- }\r
- else\r
- {\r
- temp -= (diff0 + diff1 + \r
- ABS( ABS(diff0) - ABS(diff1) ) / 2) / 2;\r
- }\r
-\r
- filp[0] = dst[i][x + y*w] = \r
- temp > 255U ? ~(temp>>31) : temp;\r
- }\r
- else\r
- {\r
- dst[i][x + y*w] = \r
- pv->mcdeint_frame_dec->data[i][x + y*fils];\r
- }\r
- }\r
- }\r
- }\r
-\r
- for( y = 0; y < h; y++ )\r
- {\r
- if( !((y ^ parity) & 1) )\r
- {\r
- for( x = 0; x < w; x++ )\r
- {\r
- pv->mcdeint_frame_dec->data[i][x + y*fils] =\r
- dst[i][x + y*w]= src[i][x + y*srcs];\r
- }\r
- }\r
- }\r
- }\r
-\r
-#ifdef SUPPRESS_AV_LOG\r
- /* TODO: restore previous log level */\r
- av_log_set_level(loglevel);\r
-#endif\r
-}\r
-\r
-hb_filter_private_t * hb_deinterlace_init( int pix_fmt, \r
- int width, \r
- int height,\r
- char * settings )\r
-{\r
- if( pix_fmt != PIX_FMT_YUV420P )\r
- {\r
- return 0;\r
- }\r
- \r
- hb_filter_private_t * pv = calloc( 1, sizeof(struct hb_filter_private_s) );\r
- \r
- pv->pix_fmt = pix_fmt;\r
-\r
- pv->width[0] = width;\r
- pv->height[0] = height; \r
- pv->width[1] = pv->width[2] = width >> 1;\r
- pv->height[1] = pv->height[2] = height >> 1; \r
- \r
- int buf_size = 3 * width * height / 2; \r
- pv->buf_out[0] = hb_buffer_init( buf_size );\r
- pv->buf_out[1] = hb_buffer_init( buf_size );\r
- pv->buf_settings = hb_buffer_init( 0 );\r
- \r
- pv->yadif_ready = 0;\r
- pv->yadif_mode = YADIF_MODE_DEFAULT;\r
- pv->yadif_parity = YADIF_PARITY_DEFAULT; \r
- \r
- pv->mcdeint_mode = MCDEINT_MODE_DEFAULT;\r
- pv->mcdeint_qp = MCDEINT_QP_DEFAULT;\r
- \r
- if( settings )\r
- {\r
- sscanf( settings, "%d:%d:%d:%d", \r
- &pv->yadif_mode, \r
- &pv->yadif_parity,\r
- &pv->mcdeint_mode,\r
- &pv->mcdeint_qp );\r
- }\r
- \r
- /* Allocate yadif specific buffers */\r
- if( pv->yadif_mode >= 0 )\r
- {\r
- int i, j;\r
- for( i = 0; i < 3; i++ )\r
- { \r
- int is_chroma = !!i;\r
- int w = ((width + 31) & (~31))>>is_chroma;\r
- int h = ((height+6+ 31) & (~31))>>is_chroma;\r
- \r
- pv->yadif_ref_stride[i] = w;\r
- \r
- for( j = 0; j < 3; j++ )\r
- {\r
- pv->yadif_ref[j][i] = malloc( w*h*sizeof(uint8_t) ) + 3*w;\r
- } \r
- }\r
- }\r
- \r
- /* Allocate mcdeint specific buffers */\r
- if( pv->mcdeint_mode >= 0 )\r
- {\r
- avcodec_init();\r
- avcodec_register_all();\r
- \r
- AVCodec * enc = avcodec_find_encoder( CODEC_ID_SNOW );\r
- \r
- int i;\r
- for (i = 0; i < 3; i++ )\r
- {\r
- AVCodecContext * avctx_enc;\r
- \r
- avctx_enc = pv->mcdeint_avctx_enc = avcodec_alloc_context();\r
- \r
- avctx_enc->width = width;\r
- avctx_enc->height = height;\r
- avctx_enc->time_base = (AVRational){1,25}; // meaningless\r
- avctx_enc->gop_size = 300;\r
- avctx_enc->max_b_frames = 0;\r
- avctx_enc->pix_fmt = PIX_FMT_YUV420P;\r
- avctx_enc->flags = CODEC_FLAG_QSCALE | CODEC_FLAG_LOW_DELAY;\r
- avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;\r
- avctx_enc->global_quality = 1;\r
- avctx_enc->flags2 = CODEC_FLAG2_MEMC_ONLY;\r
- avctx_enc->me_cmp = FF_CMP_SAD; //SSE;\r
- avctx_enc->me_sub_cmp = FF_CMP_SAD; //SSE;\r
- avctx_enc->mb_cmp = FF_CMP_SSE;\r
- \r
- switch( pv->mcdeint_mode )\r
- {\r
- case 3:\r
- avctx_enc->refs = 3;\r
- case 2:\r
- avctx_enc->me_method = ME_ITER;\r
- case 1:\r
- avctx_enc->flags |= CODEC_FLAG_4MV;\r
- avctx_enc->dia_size =2;\r
- case 0:\r
- avctx_enc->flags |= CODEC_FLAG_QPEL;\r
- }\r
- \r
- avcodec_open(avctx_enc, enc); \r
- }\r
- \r
- pv->mcdeint_frame = avcodec_alloc_frame();\r
- pv->mcdeint_outbuf_size = width * height * 10;\r
- pv->mcdeint_outbuf = malloc( pv->mcdeint_outbuf_size );\r
- }\r
-\r
- return pv;\r
-}\r
-\r
-void hb_deinterlace_close( hb_filter_private_t * pv )\r
-{\r
- if( !pv ) \r
- {\r
- return;\r
- }\r
- \r
- /* Cleanup frame buffers */\r
- if( pv->buf_out[0] )\r
- {\r
- hb_buffer_close( &pv->buf_out[0] );\r
- } \r
- if( pv->buf_out[1] )\r
- {\r
- hb_buffer_close( &pv->buf_out[1] );\r
- }\r
- if (pv->buf_settings )\r
- {\r
- hb_buffer_close( &pv->buf_settings );\r
- }\r
-\r
- /* Cleanup yadif specific buffers */\r
- if( pv->yadif_mode >= 0 )\r
- {\r
- int i;\r
- for( i = 0; i<3*3; i++ )\r
- {\r
- uint8_t **p = &pv->yadif_ref[i%3][i/3];\r
- if (*p) \r
- {\r
- free( *p - 3*pv->yadif_ref_stride[i/3] );\r
- *p = NULL;\r
- }\r
- }\r
- }\r
- \r
- /* Cleanup mcdeint specific buffers */\r
- if( pv->mcdeint_mode >= 0 )\r
- {\r
- if( pv->mcdeint_avctx_enc )\r
- {\r
- avcodec_close( pv->mcdeint_avctx_enc );\r
- av_freep( &pv->mcdeint_avctx_enc );\r
- } \r
- if( pv->mcdeint_outbuf )\r
- {\r
- free( pv->mcdeint_outbuf );\r
- } \r
- } \r
- \r
- free( pv );\r
-}\r
-\r
-int hb_deinterlace_work( const hb_buffer_t * buf_in,\r
- hb_buffer_t ** buf_out,\r
- int pix_fmt,\r
- int width, \r
- int height,\r
- hb_filter_private_t * pv )\r
-{\r
- if( !pv || \r
- pix_fmt != pv->pix_fmt ||\r
- width != pv->width[0] ||\r
- height != pv->height[0] )\r
- {\r
- return FILTER_FAILED;\r
- }\r
- \r
- avpicture_fill( &pv->pic_in, buf_in->data, \r
- pix_fmt, width, height );\r
-\r
- /* Use libavcodec deinterlace if yadif_mode < 0 */\r
- if( pv->yadif_mode < 0 )\r
- { \r
- avpicture_fill( &pv->pic_out, pv->buf_out[0]->data, \r
- pix_fmt, width, height );\r
- \r
- avpicture_deinterlace( &pv->pic_out, &pv->pic_in, \r
- pix_fmt, width, height );\r
- \r
- hb_buffer_copy_settings( pv->buf_out[0], buf_in );\r
-\r
- *buf_out = pv->buf_out[0];\r
- \r
- return FILTER_OK;\r
- }\r
- \r
- /* Determine if top-field first layout */\r
- int tff;\r
- if( pv->yadif_parity < 0 )\r
- {\r
- tff = !!(buf_in->flags & PIC_FLAG_TOP_FIELD_FIRST);\r
- }\r
- else\r
- {\r
- tff = (pv->yadif_parity & 1) ^ 1;\r
- }\r
- \r
- /* Store current frame in yadif cache */\r
- yadif_store_ref( (const uint8_t**)pv->pic_in.data, pv );\r
- \r
- /* If yadif is not ready, store another ref and return FILTER_DELAY */\r
- if( pv->yadif_ready == 0 )\r
- {\r
- yadif_store_ref( (const uint8_t**)pv->pic_in.data, pv );\r
- \r
- hb_buffer_copy_settings( pv->buf_settings, buf_in );\r
-\r
- pv->yadif_ready = 1;\r
- \r
- return FILTER_DELAY;\r
- }\r
-\r
- /* Perform yadif and mcdeint filtering */\r
- int frame;\r
- for( frame = 0; frame <= (pv->yadif_mode & 1); frame++ )\r
- {\r
- int parity = frame ^ tff ^ 1;\r
- \r
- avpicture_fill( &pv->pic_out, pv->buf_out[!(frame^1)]->data, \r
- pix_fmt, width, height );\r
- \r
- yadif_filter( pv->pic_out.data, parity, tff, pv );\r
-\r
- if( pv->mcdeint_mode >= 0 )\r
- {\r
- avpicture_fill( &pv->pic_in, pv->buf_out[(frame^1)]->data, \r
- pix_fmt, width, height );\r
- \r
- mcdeint_filter( pv->pic_in.data, pv->pic_out.data, parity, pv );\r
- \r
- *buf_out = pv->buf_out[ (frame^1)];\r
- }\r
- else\r
- {\r
- *buf_out = pv->buf_out[!(frame^1)];\r
- }\r
- }\r
- \r
- /* Copy buffered settings to output buffer settings */\r
- hb_buffer_copy_settings( *buf_out, pv->buf_settings );\r
- \r
- /* Replace buffered settings with input buffer settings */\r
- hb_buffer_copy_settings( pv->buf_settings, buf_in ); \r
-\r
- return FILTER_OK;\r
-}\r
-\r
-\r
+/*
+ Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>
+
+ 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#include "hb.h"
+#include "hbffmpeg.h"
+#include "mpeg2dec/mpeg2.h"
+
+#define SUPPRESS_AV_LOG
+
+#define YADIF_MODE_DEFAULT -1
+#define YADIF_PARITY_DEFAULT -1
+
+#define MCDEINT_MODE_DEFAULT -1
+#define MCDEINT_QP_DEFAULT 1
+
+#define ABS(a) ((a) > 0 ? (a) : (-(a)))
+#define MIN3(a,b,c) MIN(MIN(a,b),c)
+#define MAX3(a,b,c) MAX(MAX(a,b),c)
+
+typedef struct yadif_arguments_s {
+ uint8_t **dst;
+ int parity;
+ int tff;
+ int stop;
+} yadif_arguments_t;
+
+struct hb_filter_private_s
+{
+ int pix_fmt;
+ int width[3];
+ int height[3];
+
+ int yadif_mode;
+ int yadif_parity;
+ int yadif_ready;
+
+ uint8_t * yadif_ref[4][3];
+ int yadif_ref_stride[3];
+
+ int cpu_count;
+
+ hb_thread_t ** yadif_threads; // Threads for Yadif - one per CPU
+ hb_lock_t ** yadif_begin_lock; // Thread has work
+ hb_lock_t ** yadif_complete_lock; // Thread has completed work
+ yadif_arguments_t *yadif_arguments; // Arguments to thread for work
+
+ int mcdeint_mode;
+ int mcdeint_qp;
+
+ int mcdeint_outbuf_size;
+ uint8_t * mcdeint_outbuf;
+ AVCodecContext * mcdeint_avctx_enc;
+ AVFrame * mcdeint_frame;
+ AVFrame * mcdeint_frame_dec;
+
+ AVPicture pic_in;
+ AVPicture pic_out;
+ hb_buffer_t * buf_out[2];
+ hb_buffer_t * buf_settings;
+};
+
+hb_filter_private_t * hb_deinterlace_init( int pix_fmt,
+ int width,
+ int height,
+ char * settings );
+
+int hb_deinterlace_work( hb_buffer_t * buf_in,
+ hb_buffer_t ** buf_out,
+ int pix_fmt,
+ int width,
+ int height,
+ hb_filter_private_t * pv );
+
+void hb_deinterlace_close( hb_filter_private_t * pv );
+
+hb_filter_object_t hb_filter_deinterlace =
+{
+ FILTER_DEINTERLACE,
+ "Deinterlace (ffmpeg or yadif/mcdeint)",
+ NULL,
+ hb_deinterlace_init,
+ hb_deinterlace_work,
+ hb_deinterlace_close,
+};
+
+
+static void yadif_store_ref( const uint8_t ** pic,
+ hb_filter_private_t * pv )
+{
+ memcpy( pv->yadif_ref[3],
+ pv->yadif_ref[0],
+ sizeof(uint8_t *)*3 );
+
+ memmove( pv->yadif_ref[0],
+ pv->yadif_ref[1],
+ sizeof(uint8_t *)*3*3 );
+
+ int i;
+ for( i = 0; i < 3; i++ )
+ {
+ const uint8_t * src = pic[i];
+ uint8_t * ref = pv->yadif_ref[2][i];
+
+ int w = pv->width[i];
+ int ref_stride = pv->yadif_ref_stride[i];
+
+ int y;
+ for( y = 0; y < pv->height[i]; y++ )
+ {
+ memcpy(ref, src, w);
+ src = (uint8_t*)src + w;
+ ref = (uint8_t*)ref + ref_stride;
+ }
+ }
+}
+
+static void yadif_filter_line( uint8_t *dst,
+ uint8_t *prev,
+ uint8_t *cur,
+ uint8_t *next,
+ int plane,
+ int parity,
+ hb_filter_private_t * pv )
+{
+ uint8_t *prev2 = parity ? prev : cur ;
+ uint8_t *next2 = parity ? cur : next;
+
+ int w = pv->width[plane];
+ int refs = pv->yadif_ref_stride[plane];
+
+ int x;
+ for( x = 0; x < w; x++)
+ {
+ int c = cur[-refs];
+ int d = (prev2[0] + next2[0])>>1;
+ int e = cur[+refs];
+ int temporal_diff0 = ABS(prev2[0] - next2[0]);
+ int temporal_diff1 = ( ABS(prev[-refs] - c) + ABS(prev[+refs] - e) ) >> 1;
+ int temporal_diff2 = ( ABS(next[-refs] - c) + ABS(next[+refs] - e) ) >> 1;
+ int diff = MAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2);
+ int spatial_pred = (c+e)>>1;
+ int spatial_score = ABS(cur[-refs-1] - cur[+refs-1]) + ABS(c-e) +
+ ABS(cur[-refs+1] - cur[+refs+1]) - 1;
+
+#define YADIF_CHECK(j)\
+ { int score = ABS(cur[-refs-1+j] - cur[+refs-1-j])\
+ + ABS(cur[-refs +j] - cur[+refs -j])\
+ + ABS(cur[-refs+1+j] - cur[+refs+1-j]);\
+ if( score < spatial_score ){\
+ spatial_score = score;\
+ spatial_pred = (cur[-refs +j] + cur[+refs -j])>>1;\
+
+ YADIF_CHECK(-1) YADIF_CHECK(-2) }} }}
+ YADIF_CHECK( 1) YADIF_CHECK( 2) }} }}
+
+ if( pv->yadif_mode < 2 )
+ {
+ int b = (prev2[-2*refs] + next2[-2*refs])>>1;
+ int f = (prev2[+2*refs] + next2[+2*refs])>>1;
+
+ int max = MAX3(d-e, d-c, MIN(b-c, f-e));
+ int min = MIN3(d-e, d-c, MAX(b-c, f-e));
+
+ diff = MAX3( diff, min, -max );
+ }
+
+ if( spatial_pred > d + diff )
+ {
+ spatial_pred = d + diff;
+ }
+ else if( spatial_pred < d - diff )
+ {
+ spatial_pred = d - diff;
+ }
+
+ dst[0] = spatial_pred;
+
+ dst++;
+ cur++;
+ prev++;
+ next++;
+ prev2++;
+ next2++;
+ }
+}
+
+typedef struct yadif_thread_arg_s {
+ hb_filter_private_t *pv;
+ int segment;
+} yadif_thread_arg_t;
+
+/*
+ * deinterlace this segment of all three planes in a single thread.
+ */
+void yadif_filter_thread( void *thread_args_v )
+{
+ yadif_arguments_t *yadif_work = NULL;
+ hb_filter_private_t * pv;
+ int run = 1;
+ int plane;
+ int segment, segment_start, segment_stop;
+ yadif_thread_arg_t *thread_args = thread_args_v;
+ uint8_t **dst;
+ int parity, tff, y, w, h, ref_stride, penultimate, ultimate;
+
+
+ pv = thread_args->pv;
+ segment = thread_args->segment;
+
+ hb_log("Yadif Deinterlace thread started for segment %d", segment);
+
+ while( run )
+ {
+ /*
+ * Wait here until there is work to do. hb_lock() blocks until
+ * render releases it to say that there is more work to do.
+ */
+ hb_lock( pv->yadif_begin_lock[segment] );
+
+ yadif_work = &pv->yadif_arguments[segment];
+
+ if( yadif_work->stop )
+ {
+ /*
+ * No more work to do, exit this thread.
+ */
+ run = 0;
+ continue;
+ }
+
+ if( yadif_work->dst == NULL )
+ {
+ hb_error( "Thread started when no work available" );
+ hb_snooze(500);
+ continue;
+ }
+
+ /*
+ * Process all three planes, but only this segment of it.
+ */
+ for( plane = 0; plane < 3; plane++)
+ {
+
+ dst = yadif_work->dst;
+ parity = yadif_work->parity;
+ tff = yadif_work->tff;
+ w = pv->width[plane];
+ h = pv->height[plane];
+ penultimate = h -2;
+ ultimate = h - 1;
+ ref_stride = pv->yadif_ref_stride[plane];
+ segment_start = ( h / pv->cpu_count ) * segment;
+ if( segment == pv->cpu_count - 1 )
+ {
+ /*
+ * Final segment
+ */
+ segment_stop = h;
+ } else {
+ segment_stop = ( h / pv->cpu_count ) * ( segment + 1 );
+ }
+
+ for( y = segment_start; y < segment_stop; y++ )
+ {
+ if( ( ( y ^ parity ) & 1 ) )
+ {
+ /* This is the bottom field when TFF and vice-versa.
+ It's the field that gets filtered. Because yadif
+ needs 2 lines above and below the one being filtered,
+ we need to mirror the edges. When TFF, this means
+ replacing the 2nd line with a copy of the 1st,
+ and the last with the second-to-last. */
+ if( y > 1 && y < ( h -2 ) )
+ {
+ /* This isn't the top or bottom, proceed as normal to yadif. */
+ uint8_t *prev = &pv->yadif_ref[0][plane][y*ref_stride];
+ uint8_t *cur = &pv->yadif_ref[1][plane][y*ref_stride];
+ uint8_t *next = &pv->yadif_ref[2][plane][y*ref_stride];
+ uint8_t *dst2 = &dst[plane][y*w];
+
+ yadif_filter_line( dst2,
+ prev,
+ cur,
+ next,
+ plane,
+ parity ^ tff,
+ pv );
+ }
+ else if( y == 0 )
+ {
+ /* BFF, so y0 = y1 */
+ memcpy( &dst[plane][y*w],
+ &pv->yadif_ref[1][plane][1*ref_stride],
+ w * sizeof(uint8_t) );
+ }
+ else if( y == 1 )
+ {
+ /* TFF, so y1 = y0 */
+ memcpy( &dst[plane][y*w],
+ &pv->yadif_ref[1][plane][0],
+ w * sizeof(uint8_t) );
+ }
+ else if( y == penultimate )
+ {
+ /* BFF, so penultimate y = ultimate y */
+ memcpy( &dst[plane][y*w],
+ &pv->yadif_ref[1][plane][ultimate*ref_stride],
+ w * sizeof(uint8_t) );
+ }
+ else if( y == ultimate )
+ {
+ /* TFF, so ultimate y = penultimate y */
+ memcpy( &dst[plane][y*w],
+ &pv->yadif_ref[1][plane][penultimate*ref_stride],
+ w * sizeof(uint8_t) );
+ }
+ }
+ else
+ {
+ /* Preserve this field unfiltered */
+ memcpy( &dst[plane][y*w],
+ &pv->yadif_ref[1][plane][y*ref_stride],
+ w * sizeof(uint8_t) );
+ }
+ }
+ }
+ /*
+ * Finished this segment, let everyone know.
+ */
+ hb_unlock( pv->yadif_complete_lock[segment] );
+ }
+ free( thread_args_v );
+}
+
+
+/*
+ * threaded yadif - each thread deinterlaces a single segment of all
+ * three planes. Where a segment is defined as the frame divided by
+ * the number of CPUs.
+ *
+ * This function blocks until the frame is deinterlaced.
+ */
+static void yadif_filter( uint8_t ** dst,
+ int parity,
+ int tff,
+ hb_filter_private_t * pv )
+{
+
+ int segment;
+
+ for( segment = 0; segment < pv->cpu_count; segment++ )
+ {
+ /*
+ * Setup the work for this plane.
+ */
+ pv->yadif_arguments[segment].parity = parity;
+ pv->yadif_arguments[segment].tff = tff;
+ pv->yadif_arguments[segment].dst = dst;
+
+ /*
+ * Let the thread for this plane know that we've setup work
+ * for it by releasing the begin lock (ensuring that the
+ * complete lock is already locked so that we block when
+ * we try to lock it again below).
+ */
+ hb_lock( pv->yadif_complete_lock[segment] );
+ hb_unlock( pv->yadif_begin_lock[segment] );
+ }
+
+ /*
+ * Wait until all three threads have completed by trying to get
+ * the complete lock that we locked earlier for each thread, which
+ * will block until that thread has completed the work on that
+ * plane.
+ */
+ for( segment = 0; segment < pv->cpu_count; segment++ )
+ {
+ hb_lock( pv->yadif_complete_lock[segment] );
+ hb_unlock( pv->yadif_complete_lock[segment] );
+ }
+
+ /*
+ * Entire frame is now deinterlaced.
+ */
+}
+
+static void mcdeint_filter( uint8_t ** dst,
+ uint8_t ** src,
+ int parity,
+ hb_filter_private_t * pv )
+{
+ int x, y, i;
+ int out_size;
+
+#ifdef SUPPRESS_AV_LOG
+ /* TODO: temporarily change log level to suppress obnoxious debug output */
+ int loglevel = av_log_get_level();
+ av_log_set_level( AV_LOG_QUIET );
+#endif
+
+ for( i=0; i<3; i++ )
+ {
+ pv->mcdeint_frame->data[i] = src[i];
+ pv->mcdeint_frame->linesize[i] = pv->width[i];
+ }
+ pv->mcdeint_avctx_enc->me_cmp = FF_CMP_SAD;
+ pv->mcdeint_avctx_enc->me_sub_cmp = FF_CMP_SAD;
+ pv->mcdeint_frame->quality = pv->mcdeint_qp * FF_QP2LAMBDA;
+
+ out_size = avcodec_encode_video( pv->mcdeint_avctx_enc,
+ pv->mcdeint_outbuf,
+ pv->mcdeint_outbuf_size,
+ pv->mcdeint_frame );
+
+ pv->mcdeint_frame_dec = pv->mcdeint_avctx_enc->coded_frame;
+
+ for( i = 0; i < 3; i++ )
+ {
+ int w = pv->width[i];
+ int h = pv->height[i];
+ int fils = pv->mcdeint_frame_dec->linesize[i];
+ int srcs = pv->width[i];
+
+ for( y = 0; y < h; y++ )
+ {
+ if( (y ^ parity) & 1 )
+ {
+ for( x = 0; x < w; x++ )
+ {
+ if( (x-2)+(y-1)*w >= 0 && (x+2)+(y+1)*w < w*h )
+ {
+ uint8_t * filp =
+ &pv->mcdeint_frame_dec->data[i][x + y*fils];
+ uint8_t * srcp = &src[i][x + y*srcs];
+
+ int diff0 = filp[-fils] - srcp[-srcs];
+ int diff1 = filp[+fils] - srcp[+srcs];
+
+ int spatial_score =
+ ABS(srcp[-srcs-1] - srcp[+srcs-1])
+ + ABS(srcp[-srcs ] - srcp[+srcs ])
+ + ABS(srcp[-srcs+1] - srcp[+srcs+1]) - 1;
+
+ int temp = filp[0];
+
+#define MCDEINT_CHECK(j)\
+ { int score = ABS(srcp[-srcs-1+j] - srcp[+srcs-1-j])\
+ + ABS(srcp[-srcs +j] - srcp[+srcs -j])\
+ + ABS(srcp[-srcs+1+j] - srcp[+srcs+1-j]);\
+ if( score < spatial_score ) {\
+ spatial_score = score;\
+ diff0 = filp[-fils+j] - srcp[-srcs+j];\
+ diff1 = filp[+fils-j] - srcp[+srcs-j];
+
+ MCDEINT_CHECK(-1) MCDEINT_CHECK(-2) }} }}
+ MCDEINT_CHECK( 1) MCDEINT_CHECK( 2) }} }}
+
+ if(diff0 + diff1 > 0)
+ {
+ temp -= (diff0 + diff1 -
+ ABS( ABS(diff0) - ABS(diff1) ) / 2) / 2;
+ }
+ else
+ {
+ temp -= (diff0 + diff1 +
+ ABS( ABS(diff0) - ABS(diff1) ) / 2) / 2;
+ }
+
+ filp[0] = dst[i][x + y*w] =
+ temp > 255U ? ~(temp>>31) : temp;
+ }
+ else
+ {
+ dst[i][x + y*w] =
+ pv->mcdeint_frame_dec->data[i][x + y*fils];
+ }
+ }
+ }
+ }
+
+ for( y = 0; y < h; y++ )
+ {
+ if( !((y ^ parity) & 1) )
+ {
+ for( x = 0; x < w; x++ )
+ {
+ pv->mcdeint_frame_dec->data[i][x + y*fils] =
+ dst[i][x + y*w]= src[i][x + y*srcs];
+ }
+ }
+ }
+ }
+
+#ifdef SUPPRESS_AV_LOG
+ /* TODO: restore previous log level */
+ av_log_set_level(loglevel);
+#endif
+}
+
+hb_filter_private_t * hb_deinterlace_init( int pix_fmt,
+ int width,
+ int height,
+ char * settings )
+{
+ if( pix_fmt != PIX_FMT_YUV420P )
+ {
+ return 0;
+ }
+
+ hb_filter_private_t * pv = calloc( 1, sizeof(struct hb_filter_private_s) );
+
+ pv->pix_fmt = pix_fmt;
+
+ pv->width[0] = width;
+ pv->height[0] = height;
+ pv->width[1] = pv->width[2] = width >> 1;
+ pv->height[1] = pv->height[2] = height >> 1;
+
+ pv->buf_out[0] = hb_video_buffer_init( width, height );
+ pv->buf_out[1] = hb_video_buffer_init( width, height );
+ pv->buf_settings = hb_buffer_init( 0 );
+
+ pv->yadif_ready = 0;
+ pv->yadif_mode = YADIF_MODE_DEFAULT;
+ pv->yadif_parity = YADIF_PARITY_DEFAULT;
+
+ pv->mcdeint_mode = MCDEINT_MODE_DEFAULT;
+ pv->mcdeint_qp = MCDEINT_QP_DEFAULT;
+
+ if( settings )
+ {
+ sscanf( settings, "%d:%d:%d:%d",
+ &pv->yadif_mode,
+ &pv->yadif_parity,
+ &pv->mcdeint_mode,
+ &pv->mcdeint_qp );
+ }
+
+ pv->cpu_count = hb_get_cpu_count();
+
+ /* Allocate yadif specific buffers */
+ if( pv->yadif_mode >= 0 )
+ {
+ int i, j;
+ for( i = 0; i < 3; i++ )
+ {
+ int is_chroma = !!i;
+ int w = ((width + 31) & (~31))>>is_chroma;
+ int h = ((height+6+ 31) & (~31))>>is_chroma;
+
+ pv->yadif_ref_stride[i] = w;
+
+ for( j = 0; j < 3; j++ )
+ {
+ pv->yadif_ref[j][i] = malloc( w*h*sizeof(uint8_t) ) + 3*w;
+ }
+ }
+
+ /*
+ * Create yadif threads and locks.
+ */
+ pv->yadif_threads = malloc( sizeof( hb_thread_t* ) * pv->cpu_count );
+ pv->yadif_begin_lock = malloc( sizeof( hb_lock_t * ) * pv->cpu_count );
+ pv->yadif_complete_lock = malloc( sizeof( hb_lock_t * ) * pv->cpu_count );
+ pv->yadif_arguments = malloc( sizeof( yadif_arguments_t ) * pv->cpu_count );
+
+ for( i = 0; i < pv->cpu_count; i++ )
+ {
+ yadif_thread_arg_t *thread_args;
+
+ thread_args = malloc( sizeof( yadif_thread_arg_t ) );
+
+ if( thread_args ) {
+ thread_args->pv = pv;
+ thread_args->segment = i;
+
+ pv->yadif_begin_lock[i] = hb_lock_init();
+ pv->yadif_complete_lock[i] = hb_lock_init();
+
+ /*
+ * Important to start off with the threads locked waiting
+ * on input.
+ */
+ hb_lock( pv->yadif_begin_lock[i] );
+
+ pv->yadif_arguments[i].stop = 0;
+ pv->yadif_arguments[i].dst = NULL;
+
+ pv->yadif_threads[i] = hb_thread_init( "yadif_filter_segment",
+ yadif_filter_thread,
+ thread_args,
+ HB_NORMAL_PRIORITY );
+ } else {
+ hb_error( "Yadif could not create threads" );
+ }
+ }
+ }
+
+ /* Allocate mcdeint specific buffers */
+ if( pv->mcdeint_mode >= 0 )
+ {
+ avcodec_init();
+ avcodec_register_all();
+
+ AVCodec * enc = avcodec_find_encoder( CODEC_ID_SNOW );
+
+ int i;
+ for (i = 0; i < 3; i++ )
+ {
+ AVCodecContext * avctx_enc;
+
+ avctx_enc = pv->mcdeint_avctx_enc = avcodec_alloc_context();
+
+ avctx_enc->width = width;
+ avctx_enc->height = height;
+ avctx_enc->time_base = (AVRational){1,25}; // meaningless
+ avctx_enc->gop_size = 300;
+ avctx_enc->max_b_frames = 0;
+ avctx_enc->pix_fmt = PIX_FMT_YUV420P;
+ avctx_enc->flags = CODEC_FLAG_QSCALE | CODEC_FLAG_LOW_DELAY;
+ avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
+ avctx_enc->global_quality = 1;
+ avctx_enc->flags2 = CODEC_FLAG2_MEMC_ONLY;
+ avctx_enc->me_cmp = FF_CMP_SAD; //SSE;
+ avctx_enc->me_sub_cmp = FF_CMP_SAD; //SSE;
+ avctx_enc->mb_cmp = FF_CMP_SSE;
+
+ switch( pv->mcdeint_mode )
+ {
+ case 3:
+ avctx_enc->refs = 3;
+ case 2:
+ avctx_enc->me_method = ME_UMH;
+ case 1:
+ avctx_enc->flags |= CODEC_FLAG_4MV;
+ avctx_enc->dia_size =2;
+ case 0:
+ avctx_enc->flags |= CODEC_FLAG_QPEL;
+ }
+
+ hb_avcodec_open(avctx_enc, enc);
+ }
+
+ pv->mcdeint_frame = avcodec_alloc_frame();
+ pv->mcdeint_outbuf_size = width * height * 10;
+ pv->mcdeint_outbuf = malloc( pv->mcdeint_outbuf_size );
+ }
+
+ return pv;
+}
+
+void hb_deinterlace_close( hb_filter_private_t * pv )
+{
+ if( !pv )
+ {
+ return;
+ }
+
+ /* Cleanup frame buffers */
+ if( pv->buf_out[0] )
+ {
+ hb_buffer_close( &pv->buf_out[0] );
+ }
+ if( pv->buf_out[1] )
+ {
+ hb_buffer_close( &pv->buf_out[1] );
+ }
+ if (pv->buf_settings )
+ {
+ hb_buffer_close( &pv->buf_settings );
+ }
+
+ /* Cleanup yadif specific buffers */
+ if( pv->yadif_mode >= 0 )
+ {
+ int i;
+ for( i = 0; i<3*3; i++ )
+ {
+ uint8_t **p = &pv->yadif_ref[i%3][i/3];
+ if (*p)
+ {
+ free( *p - 3*pv->yadif_ref_stride[i/3] );
+ *p = NULL;
+ }
+ }
+
+ for( i = 0; i < pv->cpu_count; i++)
+ {
+ /*
+ * Tell each yadif thread to stop, and then cleanup.
+ */
+ pv->yadif_arguments[i].stop = 1;
+ hb_unlock( pv->yadif_begin_lock[i] );
+
+ hb_thread_close( &pv->yadif_threads[i] );
+ hb_lock_close( &pv->yadif_begin_lock[i] );
+ hb_lock_close( &pv->yadif_complete_lock[i] );
+ }
+
+ /*
+ * free memory for yadif structs
+ */
+ free( pv->yadif_threads );
+ free( pv->yadif_begin_lock );
+ free( pv->yadif_complete_lock );
+ free( pv->yadif_arguments );
+ }
+
+ /* Cleanup mcdeint specific buffers */
+ if( pv->mcdeint_mode >= 0 )
+ {
+ if( pv->mcdeint_avctx_enc )
+ {
+ hb_avcodec_close( pv->mcdeint_avctx_enc );
+ av_freep( &pv->mcdeint_avctx_enc );
+ }
+ if( pv->mcdeint_outbuf )
+ {
+ free( pv->mcdeint_outbuf );
+ }
+ }
+
+ free( pv );
+}
+
+int hb_deinterlace_work( hb_buffer_t * buf_in,
+ hb_buffer_t ** buf_out,
+ int pix_fmt,
+ int width,
+ int height,
+ hb_filter_private_t * pv )
+{
+ if( !pv ||
+ pix_fmt != pv->pix_fmt ||
+ width != pv->width[0] ||
+ height != pv->height[0] )
+ {
+ return FILTER_FAILED;
+ }
+
+ avpicture_fill( &pv->pic_in, buf_in->data,
+ pix_fmt, width, height );
+
+ /* Use libavcodec deinterlace if yadif_mode < 0 */
+ if( pv->yadif_mode < 0 )
+ {
+ avpicture_fill( &pv->pic_out, pv->buf_out[0]->data,
+ pix_fmt, width, height );
+
+ avpicture_deinterlace( &pv->pic_out, &pv->pic_in,
+ pix_fmt, width, height );
+
+ hb_buffer_copy_settings( pv->buf_out[0], buf_in );
+
+ *buf_out = pv->buf_out[0];
+
+ return FILTER_OK;
+ }
+
+ /* Determine if top-field first layout */
+ int tff;
+ if( pv->yadif_parity < 0 )
+ {
+ tff = !!(buf_in->flags & PIC_FLAG_TOP_FIELD_FIRST);
+ }
+ else
+ {
+ tff = (pv->yadif_parity & 1) ^ 1;
+ }
+
+ /* Store current frame in yadif cache */
+ yadif_store_ref( (const uint8_t**)pv->pic_in.data, pv );
+
+ /* If yadif is not ready, store another ref and return FILTER_DELAY */
+ if( pv->yadif_ready == 0 )
+ {
+ yadif_store_ref( (const uint8_t**)pv->pic_in.data, pv );
+
+ hb_buffer_copy_settings( pv->buf_settings, buf_in );
+
+ /* don't let 'work_loop' send a chapter mark upstream */
+ buf_in->new_chap = 0;
+
+ pv->yadif_ready = 1;
+
+ return FILTER_DELAY;
+ }
+
+ /* Perform yadif and mcdeint filtering */
+ int frame;
+ for( frame = 0; frame <= (pv->yadif_mode & 1); frame++ )
+ {
+ int parity = frame ^ tff ^ 1;
+
+ avpicture_fill( &pv->pic_out, pv->buf_out[!(frame^1)]->data,
+ pix_fmt, width, height );
+
+ yadif_filter( pv->pic_out.data, parity, tff, pv );
+
+ if( pv->mcdeint_mode >= 0 )
+ {
+ avpicture_fill( &pv->pic_in, pv->buf_out[(frame^1)]->data,
+ pix_fmt, width, height );
+
+ mcdeint_filter( pv->pic_in.data, pv->pic_out.data, parity, pv );
+
+ *buf_out = pv->buf_out[ (frame^1)];
+ }
+ else
+ {
+ *buf_out = pv->buf_out[!(frame^1)];
+ }
+ }
+
+ /* Copy buffered settings to output buffer settings */
+ hb_buffer_copy_settings( *buf_out, pv->buf_settings );
+
+ /* Replace buffered settings with input buffer settings */
+ hb_buffer_copy_settings( pv->buf_settings, buf_in );
+
+ /* don't let 'work_loop' send a chapter mark upstream */
+ buf_in->new_chap = 0;
+
+ return FILTER_OK;
+}
+
+
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