diff options
Diffstat (limited to 'libhb/deinterlace.c')
| -rw-r--r-- | libhb/deinterlace.c | 1202 |
1 files changed, 601 insertions, 601 deletions
diff --git a/libhb/deinterlace.c b/libhb/deinterlace.c index b7d76bec0..44593f45c 100644 --- a/libhb/deinterlace.c +++ b/libhb/deinterlace.c @@ -1,601 +1,601 @@ -/*
- Copyright (C) 2006 Michael Niedermayer <[email protected]>
-
- 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 "ffmpeg/avcodec.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)
-
-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 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 h = pv->height[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++;
- }
-}
-
-static void yadif_filter( uint8_t ** dst,
- int parity,
- int tff,
- hb_filter_private_t * pv )
-{
- int i;
- for( i = 0; i < 3; i++ )
- {
- int w = pv->width[i];
- int h = pv->height[i];
- int ref_stride = pv->yadif_ref_stride[i];
-
- int y;
- for( y = 0; y < h; y++ )
- {
- if( (y ^ parity) & 1 )
- {
- uint8_t *prev = &pv->yadif_ref[0][i][y*ref_stride];
- uint8_t *cur = &pv->yadif_ref[1][i][y*ref_stride];
- uint8_t *next = &pv->yadif_ref[2][i][y*ref_stride];
- uint8_t *dst2 = &dst[i][y*w];
-
- yadif_filter_line( dst2, prev, cur, next, i, parity ^ tff, pv );
- }
- else
- {
- memcpy( &dst[i][y*w],
- &pv->yadif_ref[1][i][y*ref_stride],
- w * sizeof(uint8_t) );
- }
- }
- }
-}
-
-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;
-
- int buf_size = 3 * width * height / 2;
- pv->buf_out[0] = hb_buffer_init( buf_size );
- pv->buf_out[1] = hb_buffer_init( buf_size );
- 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 );
- }
-
- /* 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;
- }
- }
- }
-
- /* 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;
- }
-
- 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;
- }
- }
- }
-
- /* Cleanup mcdeint specific buffers */
- if( pv->mcdeint_mode >= 0 )
- {
- if( pv->mcdeint_avctx_enc )
- {
- 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;
-}
-
-
+/* + Copyright (C) 2006 Michael Niedermayer <[email protected]> + + 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 "ffmpeg/avcodec.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) + +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 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 h = pv->height[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++; + } +} + +static void yadif_filter( uint8_t ** dst, + int parity, + int tff, + hb_filter_private_t * pv ) +{ + int i; + for( i = 0; i < 3; i++ ) + { + int w = pv->width[i]; + int h = pv->height[i]; + int ref_stride = pv->yadif_ref_stride[i]; + + int y; + for( y = 0; y < h; y++ ) + { + if( (y ^ parity) & 1 ) + { + uint8_t *prev = &pv->yadif_ref[0][i][y*ref_stride]; + uint8_t *cur = &pv->yadif_ref[1][i][y*ref_stride]; + uint8_t *next = &pv->yadif_ref[2][i][y*ref_stride]; + uint8_t *dst2 = &dst[i][y*w]; + + yadif_filter_line( dst2, prev, cur, next, i, parity ^ tff, pv ); + } + else + { + memcpy( &dst[i][y*w], + &pv->yadif_ref[1][i][y*ref_stride], + w * sizeof(uint8_t) ); + } + } + } +} + +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; + + int buf_size = 3 * width * height / 2; + pv->buf_out[0] = hb_buffer_init( buf_size ); + pv->buf_out[1] = hb_buffer_init( buf_size ); + 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 ); + } + + /* 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; + } + } + } + + /* 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; + } + + 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; + } + } + } + + /* Cleanup mcdeint specific buffers */ + if( pv->mcdeint_mode >= 0 ) + { + if( pv->mcdeint_avctx_enc ) + { + 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; +} + + |