mirror of https://github.com/mpv-player/mpv
New filter by Ville Saari (114263 at foo dot bar dot org)
for removing duplicate frames from telecined video that was incorrectly deinterlaced. Minor bugfixes added by me. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12226 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rfelker
parent
f285c25435
commit
6b373e4077
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@ -3135,6 +3135,66 @@ telecined, inserting this filter before them should make them more reliable.
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Currently only libmpeg2 exports the needed flags.
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If used on material that does not set them, the filter does nothing.
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.TP
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.B divtc[=options]
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Inverse telecine for deinterlaced video.
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If 3:2-pulldown telecined video has lost one of the fields or is deinterlaced
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using a method that keeps one field and interpolates the other, the result is
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a juddering video that has every fourth frame duplicated.
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This filter is intended to find and drop those duplicates and restore the
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original film frame rate.
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When using this filter, you must specify \-ofps that is 4/5 of the fps of the
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input file (23.976 if the input is 29.97fps).
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The options are:
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.RSs
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.IPs pass=1|2
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Use two-pass mode.
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This produces best results.
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Pass 1 analyzes the video and writes the results to a log file.
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Pass 2 then reads this log file and uses the information to do the actual work.
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Note that these passes do NOT correspond to pass 1 and 2 of the encoding
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process.
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In order to use divtc two-pass with two-pass video encoding, you must perform
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three passes: first divtc pass 1 and encoder pass 1, then divtc pass 2 and
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encoder pass 1, and finally divtc pass 2 and encoder pass 2.
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.IPs file=filename
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Set the 2-pass log file name (default: "framediff.log").
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.IPs threshold=value
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Set the minimum strength the telecine pattern must have for the filter to
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believe in it (default: 0.5).
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This is used to avoid recognizing false pattern from the parts of the video
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that are very dark or very still.
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.IPs window=numframes
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Set the number of past frames to look at when searching for pattern
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(default: 30).
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Longer window improves the reliability of the pattern search, but shorter
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window improves the reaction time to the changes in the telecine phase.
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This only affects the one-pass mode.
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The two-pass mode currently uses fixed window that extends to both future
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and past.
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.IPs phase=0|1|2|3|4
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Sets the initial telecine phase for one-pass mode (default: 0).
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The two-pass mode can see the future, so it is able to use the correct
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phase from the beginning, but one-pass mode can only guess.
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It catches the correct phase when it finds it, but this option can be used
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to fix the possible juddering at the beginning.
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The first pass of the two-pass mode also uses this, so if you save the output
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from the first pass, you get constant phase result.
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.IPs deghost=value
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Set the deghosting threshold (0\-255 for one-pass mode, -255\-255 for two-pass
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mode, default 0).
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If nonzero, deghosting mode is used.
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This is for video that has been deinterlaced by blending the fields
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together instead of dropping one of the fields.
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Deghosting amplifies any compression artifacts in the blended frames, so the
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parameter value is used as a threshold to exclude those pixels from
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deghosting that differ from the previous frame less than specified value.
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If two-pass mode is used, then negative value can be used to make the
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filter analyze the whole video in the beginning of pass-2 to determine
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whether it needs deghosting or not and then select either zero or the
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absolute value of the parameter.
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Specify this option for pass-2, it makes no difference on pass-1.
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.RE
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.TP
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.B phase=[t|b|p|a|u|T|B|A|U][:v]
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Delay interlaced video by one field time so that the field order
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changes.
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@ -14,7 +14,7 @@ VIDEO_SRCS_NAT=vd_null.c vd_cinepak.c vd_raw.c vd_hmblck.c vd_fli.c vd_qtrle.c v
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VIDEO_SRCS_OPT=vd_realvid.c vd_ffmpeg.c vd_dshow.c vd_dmo.c vd_vfw.c vd_vfwex.c vd_odivx.c vd_divx4.c vd_zrmjpeg.c vd_xanim.c vd_xvid.c vd_xvid4.c vd_libdv.c vd_qtvideo.c vd_theora.c
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VIDEO_SRCS=dec_video.c vd.c $(VIDEO_SRCS_NAT) $(VIDEO_SRCS_LIB) $(VIDEO_SRCS_OPT)
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VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_scale.c vf_format.c vf_noformat.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c vf_mirror.c vf_palette.c vf_lavc.c vf_dvbscale.c vf_cropdetect.c vf_test.c vf_noise.c vf_yvu9.c vf_rectangle.c vf_lavcdeint.c vf_eq.c vf_eq2.c vf_halfpack.c vf_dint.c vf_1bpp.c vf_bmovl.c vf_2xsai.c vf_unsharp.c vf_swapuv.c vf_il.c vf_boxblur.c vf_sab.c vf_smartblur.c vf_perspective.c vf_down3dright.c vf_field.c vf_denoise3d.c vf_hqdn3d.c vf_detc.c vf_telecine.c vf_tfields.c vf_ivtc.c vf_ilpack.c vf_dsize.c vf_decimate.c vf_softpulldown.c vf_tinterlace.c vf_pullup.c pullup.c vf_framestep.c vf_tile.c vf_delogo.c vf_fil.c vf_hue.c vf_spp.c vf_yuvcsp.c vf_filmdint.c vf_kerndeint.c vf_rgbtest.c vf_qp.c vf_phase.c
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VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_scale.c vf_format.c vf_noformat.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c vf_mirror.c vf_palette.c vf_lavc.c vf_dvbscale.c vf_cropdetect.c vf_test.c vf_noise.c vf_yvu9.c vf_rectangle.c vf_lavcdeint.c vf_eq.c vf_eq2.c vf_halfpack.c vf_dint.c vf_1bpp.c vf_bmovl.c vf_2xsai.c vf_unsharp.c vf_swapuv.c vf_il.c vf_boxblur.c vf_sab.c vf_smartblur.c vf_perspective.c vf_down3dright.c vf_field.c vf_denoise3d.c vf_hqdn3d.c vf_detc.c vf_telecine.c vf_tfields.c vf_ivtc.c vf_ilpack.c vf_dsize.c vf_decimate.c vf_softpulldown.c vf_tinterlace.c vf_pullup.c pullup.c vf_framestep.c vf_tile.c vf_delogo.c vf_fil.c vf_hue.c vf_spp.c vf_yuvcsp.c vf_filmdint.c vf_kerndeint.c vf_rgbtest.c vf_qp.c vf_phase.c vf_divtc.c
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ifeq ($(HAVE_FFPOSTPROCESS),yes)
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VFILTER_SRCS += vf_pp.c
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endif
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@ -88,6 +88,7 @@ extern vf_info_t vf_info_kerndeint;
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extern vf_info_t vf_info_rgbtest;
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extern vf_info_t vf_info_qp;
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extern vf_info_t vf_info_phase;
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extern vf_info_t vf_info_divtc;
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// list of available filters:
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static vf_info_t* filter_list[]={
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@ -169,6 +170,7 @@ static vf_info_t* filter_list[]={
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&vf_info_qp,
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#endif
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&vf_info_phase,
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&vf_info_divtc,
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NULL
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};
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@ -0,0 +1,698 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include <math.h>
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#include "../config.h"
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#include "../mp_msg.h"
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#include "../cpudetect.h"
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#include "../bswap.h"
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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#include "../libvo/fastmemcpy.h"
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vf_info_t vf_info_divtc;
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struct vf_priv_s
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{
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int deghost, pass, phase, window, fcount, bcount, frameno, misscount,
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ocount, sum[5];
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double threshold;
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FILE *file;
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char *bdata;
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unsigned int *csdata;
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int *history;
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};
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/*
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* diff_MMX and diff_C stolen from vf_decimate.c
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*/
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#ifdef HAVE_MMX
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static int diff_MMX(unsigned char *old, unsigned char *new, int os, int ns)
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{
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volatile short out[4];
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asm (
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"movl $8, %%ecx \n\t"
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"pxor %%mm4, %%mm4 \n\t"
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"pxor %%mm7, %%mm7 \n\t"
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".balign 16 \n\t"
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"1: \n\t"
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"movq (%%esi), %%mm0 \n\t"
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"movq (%%esi), %%mm2 \n\t"
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"addl %%eax, %%esi \n\t"
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"movq (%%edi), %%mm1 \n\t"
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"addl %%ebx, %%edi \n\t"
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"psubusb %%mm1, %%mm2 \n\t"
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"psubusb %%mm0, %%mm1 \n\t"
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"movq %%mm2, %%mm0 \n\t"
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"movq %%mm1, %%mm3 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"punpcklbw %%mm7, %%mm1 \n\t"
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"punpckhbw %%mm7, %%mm2 \n\t"
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"punpckhbw %%mm7, %%mm3 \n\t"
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"paddw %%mm0, %%mm4 \n\t"
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"paddw %%mm1, %%mm4 \n\t"
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"paddw %%mm2, %%mm4 \n\t"
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"paddw %%mm3, %%mm4 \n\t"
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"decl %%ecx \n\t"
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"jnz 1b \n\t"
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"movq %%mm4, (%%edx) \n\t"
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"emms \n\t"
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:
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: "S" (old), "D" (new), "a" (os), "b" (ns), "d" (out)
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: "memory"
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);
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return out[0]+out[1]+out[2]+out[3];
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}
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#endif
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static int diff_C(unsigned char *old, unsigned char *new, int os, int ns)
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{
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int x, y, d=0;
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for(y=8; y; y--, new+=ns, old+=os)
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for(x=8; x; x--)
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d+=abs(new[x]-old[x]);
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return d;
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}
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static int (*diff)(unsigned char *, unsigned char *, int, int);
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static int diff_plane(unsigned char *old, unsigned char *new,
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int w, int h, int os, int ns, int arg)
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{
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int x, y, d, max=0, sum=0, n=0;
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for(y=0; y<h-7; y+=8)
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{
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for(x=0; x<w-7; x+=8)
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{
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d=diff(old+x+y*os, new+x+y*ns, os, ns);
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if(d>max) max=d;
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sum+=d;
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n++;
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}
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}
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return (sum+n*max)/2;
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}
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/*
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static unsigned int checksum_plane(unsigned char *p, unsigned char *z,
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int w, int h, int s, int zs, int arg)
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{
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unsigned int shift, sum;
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unsigned char *e;
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for(sum=0; h; h--, p+=s-w)
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for(e=p+w, shift=32; p<e;)
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sum^=(*p++)<<(shift=(shift-8)&31);
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return sum;
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}
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*/
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static unsigned int checksum_plane(unsigned char *p, unsigned char *z,
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int w, int h, int s, int zs, int arg)
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{
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unsigned int shift;
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uint32_t sum, t;
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unsigned char *e, *e2;
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#if MP_WORDSIZE==64
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typedef uint64_t wsum_t;
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#else
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typedef uint32_t wsum_t;
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#endif
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wsum_t wsum;
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for(sum=0; h; h--, p+=s-w)
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{
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for(shift=0, e=p+w; (int)p&(sizeof(wsum_t)-1) && p<e;)
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sum^=*p++<<(shift=(shift-8)&31);
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for(wsum=0, e2=e-sizeof(wsum_t)+1; p<e2; p+=sizeof(wsum_t))
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wsum^=*(wsum_t *)p;
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#if MP_WORDSIZE==64
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t=be2me_32((uint32_t)(wsum>>32^wsum));
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#else
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t=be2me_32(wsum);
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#endif
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for(sum^=(t<<shift|t>>(32-shift)); p<e;)
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sum^=*p++<<(shift=(shift-8)&31);
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}
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return sum;
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}
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static int deghost_plane(unsigned char *d, unsigned char *s,
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int w, int h, int ds, int ss, int threshold)
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{
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int t;
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unsigned char *e;
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for(; h; h--, s+=ss-w, d+=ds-w)
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for(e=d+w; d<e; d++, s++)
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if(abs(*d-*s)>=threshold)
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*d=(t=(*d<<1)-*s)<0?0:t>255?255:t;
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return 0;
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}
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static int imgop(int(*planeop)(unsigned char *, unsigned char *,
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int, int, int, int, int),
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mp_image_t *dst, mp_image_t *src, int arg)
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{
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if(dst->flags&MP_IMGFLAG_PLANAR)
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return planeop(dst->planes[0], src?src->planes[0]:0,
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dst->w, dst->h,
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dst->stride[0], src?src->stride[0]:0, arg)+
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planeop(dst->planes[1], src?src->planes[1]:0,
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dst->chroma_width, dst->chroma_height,
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dst->stride[1], src?src->stride[1]:0, arg)+
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planeop(dst->planes[2], src?src->planes[2]:0,
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dst->chroma_width, dst->chroma_height,
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dst->stride[2], src?src->stride[2]:0, arg);
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return planeop(dst->planes[0], src?src->planes[0]:0,
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dst->w*(dst->bpp/8), dst->h,
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dst->stride[0], src?src->stride[0]:0, arg);
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}
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/*
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* Find the phase in which the telecine pattern fits best to the
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* given 5 frame slice of frame difference measurements.
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*
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* If phase1 and phase2 are not negative, only the two specified
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* phases are tested.
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*/
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static int cmp(int *a, int *b) { return *b-*a; }
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static int match(struct vf_priv_s *p, int *diffs,
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int phase1, int phase2, double *strength)
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{
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static const int pattern1[]={ -4, 1, 1, 1, 1 },
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pattern2[]={ -2, -3, 4, 4, -3 }, *pattern;
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int f, m, n, t[5];
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pattern=p->deghost>0?pattern2:pattern1;
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for(f=0; f<5; f++)
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{
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if(phase1<0 || phase2<0 || f==phase1 || f==phase2)
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{
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for(n=t[f]=0; n<5; n++)
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t[f]+=diffs[n]*pattern[(n-f+5)%5];
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}
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else
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t[f]=INT_MIN;
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}
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/* find the best match */
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for(m=0, n=1; n<5; n++)
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if(t[n]>t[m]) m=n;
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if(strength)
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{
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/* the second best match */
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for(f=m?0:1, n=f+1; n<5; n++)
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if(n!=m && t[n]>t[f]) f=n;
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*strength=(t[m]>0?(double)(t[m]-t[f])/t[m]:0.0);
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}
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return m;
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}
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static int put_image(struct vf_instance_s* vf, mp_image_t *mpi)
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{
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mp_image_t *dmpi, *tmpi=0;
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int n, m, f, newphase;
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struct vf_priv_s *p=vf->priv;
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unsigned int checksum;
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double d;
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dmpi=vf_get_image(vf->next, mpi->imgfmt,
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MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
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MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE,
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mpi->width, mpi->height);
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vf_clone_mpi_attributes(dmpi, mpi);
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newphase=p->phase;
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switch(p->pass)
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{
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case 1:
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fprintf(p->file, "%08x %d\n",
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(unsigned int)imgop((void *)checksum_plane, mpi, 0, 0),
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p->frameno?imgop(diff_plane, dmpi, mpi, 0):0);
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break;
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case 2:
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if(p->frameno/5>p->bcount)
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{
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mp_msg(MSGT_VFILTER, MSGL_ERR,
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"\n%s: Log file ends prematurely! "
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"Switching to one pass mode.\n", vf->info->name);
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p->pass=0;
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break;
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}
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checksum=(unsigned int)imgop((void *)checksum_plane, mpi, 0, 0);
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if(checksum!=p->csdata[p->frameno])
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{
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for(f=0; f<100; f++)
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if(p->frameno+f<p->fcount && p->csdata[p->frameno+f]==checksum)
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break;
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else if(p->frameno-f>=0 && p->csdata[p->frameno-f]==checksum)
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{
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f=-f;
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break;
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}
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if(f<100)
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{
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mp_msg(MSGT_VFILTER, MSGL_INFO,
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"\n%s: Mismatch with pass-1: %+d frame(s).\n",
|
||||
vf->info->name, f);
|
||||
|
||||
p->frameno+=f;
|
||||
p->misscount=0;
|
||||
}
|
||||
else if(p->misscount++>=30)
|
||||
{
|
||||
mp_msg(MSGT_VFILTER, MSGL_ERR,
|
||||
"\n%s: Sync with pass-1 lost! "
|
||||
"Switching to one pass mode.\n", vf->info->name);
|
||||
p->pass=0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
n=(p->frameno)/5;
|
||||
if(n>=p->bcount) n=p->bcount-1;
|
||||
|
||||
newphase=p->bdata[n];
|
||||
break;
|
||||
|
||||
default:
|
||||
if(p->frameno)
|
||||
{
|
||||
int *sump=p->sum+p->frameno%5,
|
||||
*histp=p->history+p->frameno%p->window;
|
||||
|
||||
*sump-=*histp;
|
||||
*sump+=(*histp=imgop(diff_plane, dmpi, mpi, 0));
|
||||
}
|
||||
|
||||
m=match(p, p->sum, -1, -1, &d);
|
||||
|
||||
if(d>=p->threshold)
|
||||
newphase=m;
|
||||
}
|
||||
|
||||
n=p->ocount++%5;
|
||||
|
||||
if(newphase!=p->phase && ((p->phase+4)%5<n)==((newphase+4)%5<n))
|
||||
{
|
||||
p->phase=newphase;
|
||||
mp_msg(MSGT_VFILTER, MSGL_STATUS,
|
||||
"\n%s: Telecine phase %d.\n", vf->info->name, p->phase);
|
||||
}
|
||||
|
||||
switch((p->frameno++-p->phase+10)%5)
|
||||
{
|
||||
case 0:
|
||||
imgop((void *)memcpy_pic, dmpi, mpi, 0);
|
||||
return 0;
|
||||
|
||||
case 4:
|
||||
if(p->deghost>0)
|
||||
{
|
||||
tmpi=vf_get_image(vf->next, mpi->imgfmt,
|
||||
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
|
||||
mpi->width, mpi->height);
|
||||
vf_clone_mpi_attributes(tmpi, mpi);
|
||||
|
||||
imgop((void *)memcpy_pic, tmpi, mpi, 0);
|
||||
imgop(deghost_plane, tmpi, dmpi, p->deghost);
|
||||
imgop((void *)memcpy_pic, dmpi, mpi, 0);
|
||||
return vf_next_put_image(vf, tmpi);
|
||||
}
|
||||
}
|
||||
|
||||
imgop((void *)memcpy_pic, dmpi, mpi, 0);
|
||||
return vf_next_put_image(vf, dmpi);
|
||||
}
|
||||
|
||||
static int analyze(struct vf_priv_s *p)
|
||||
{
|
||||
int *buf=0, *bp, bufsize=0, n, b, f, i, j, m, s;
|
||||
unsigned int *cbuf=0, *cp;
|
||||
char *pbuf;
|
||||
char lbuf[256];
|
||||
int sum[5];
|
||||
double d;
|
||||
|
||||
/* read the file */
|
||||
|
||||
n=15;
|
||||
while(fgets(lbuf, 256, p->file))
|
||||
{
|
||||
if(n>=bufsize-19)
|
||||
{
|
||||
bufsize=bufsize?bufsize*2:30000;
|
||||
if((bp=realloc(buf, bufsize*sizeof *buf))) buf=bp;
|
||||
if((cp=realloc(cbuf, bufsize*sizeof *cbuf))) cbuf=cp;
|
||||
|
||||
if(!bp || !cp)
|
||||
{
|
||||
mp_msg(MSGT_VFILTER, MSGL_FATAL, "%s: Not enough memory.\n",
|
||||
vf_info_divtc.name);
|
||||
free(buf);
|
||||
free(cbuf);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
sscanf(lbuf, "%x %d", cbuf+n, buf+n);
|
||||
n++;
|
||||
}
|
||||
|
||||
if(!n)
|
||||
{
|
||||
mp_msg(MSGT_VFILTER, MSGL_FATAL, "%s: Empty 2-pass log file.\n",
|
||||
vf_info_divtc.name);
|
||||
free(buf);
|
||||
free(cbuf);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* generate some dummy data past the beginning and end of the array */
|
||||
|
||||
buf+=15, cbuf+=15;
|
||||
n-=15;
|
||||
|
||||
memcpy(buf-15, buf, 15*sizeof *buf);
|
||||
memset(cbuf-15, 0, 15*sizeof *cbuf);
|
||||
|
||||
while(n%5)
|
||||
buf[n]=buf[n-5], cbuf[n]=0, n++;
|
||||
|
||||
memcpy(buf+n, buf+n-15, 15*sizeof *buf);
|
||||
memset(cbuf+n, 0, 15*sizeof *cbuf);
|
||||
|
||||
p->csdata=cbuf;
|
||||
p->fcount=n;
|
||||
|
||||
/* array with one slot for each slice of 5 frames */
|
||||
|
||||
p->bdata=pbuf=malloc(p->bcount=b=(n/5));
|
||||
memset(pbuf, 255, b);
|
||||
|
||||
/* resolve the automatic mode */
|
||||
|
||||
if(p->deghost<0)
|
||||
{
|
||||
int deghost=-p->deghost;
|
||||
double s0=0.0, s1=0.0;
|
||||
|
||||
for(f=0; f<n; f+=5)
|
||||
{
|
||||
p->deghost=0; match(p, buf+f, -1, -1, &d); s0+=d;
|
||||
p->deghost=1; match(p, buf+f, -1, -1, &d); s1+=d;
|
||||
}
|
||||
|
||||
p->deghost=s1>s0?deghost:0;
|
||||
|
||||
mp_msg(MSGT_VFILTER, MSGL_INFO,
|
||||
"%s: Deghosting %-3s (relative pattern strength %+.2fdB).\n",
|
||||
vf_info_divtc.name,
|
||||
p->deghost?"ON":"OFF",
|
||||
10.0*log10(s1/s0));
|
||||
}
|
||||
|
||||
/* analyze the data */
|
||||
|
||||
for(f=0; f<5; f++)
|
||||
for(sum[f]=0, n=-15; n<20; n+=5)
|
||||
sum[f]+=buf[n+f];
|
||||
|
||||
for(f=0; f<b; f++)
|
||||
{
|
||||
m=match(p, sum, -1, -1, &d);
|
||||
|
||||
if(d>=p->threshold)
|
||||
pbuf[f]=m;
|
||||
|
||||
if(f<b-1)
|
||||
for(n=0; n<5; n++)
|
||||
sum[n]=sum[n]-buf[5*(f-3)+n]+buf[5*(f+4)+n];
|
||||
}
|
||||
|
||||
/* fill in the gaps */
|
||||
|
||||
/* the beginning */
|
||||
for(f=0; f<b && pbuf[f]==-1; f++);
|
||||
|
||||
if(f==b)
|
||||
{
|
||||
free(buf-15);
|
||||
mp_msg(MSGT_VFILTER, MSGL_FATAL, "%s: No telecine pattern found!\n",
|
||||
vf_info_divtc.name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
for(n=0; n<f; pbuf[n++]=pbuf[f]);
|
||||
|
||||
/* the end */
|
||||
for(f=b-1; pbuf[f]==-1; f--);
|
||||
for(n=f+1; n<b; pbuf[n++]=pbuf[f]);
|
||||
|
||||
/* the rest */
|
||||
for(f=0;;)
|
||||
{
|
||||
while(f<b && pbuf[f]!=-1) f++;
|
||||
if(f==b) break;
|
||||
for(n=f; pbuf[n]==-1; n++);
|
||||
|
||||
if(pbuf[f-1]==pbuf[n])
|
||||
{
|
||||
/* just a gap */
|
||||
while(f<n) pbuf[f++]=pbuf[n];
|
||||
}
|
||||
else
|
||||
{
|
||||
/* phase change, reanalyze the original data in the gap with zero
|
||||
threshold for only the two phases that appear at the ends */
|
||||
|
||||
for(i=0; i<5; i++)
|
||||
for(sum[i]=0, j=5*f-15; j<5*f; j+=5)
|
||||
sum[i]+=buf[i+j];
|
||||
|
||||
for(i=f; i<n; i++)
|
||||
{
|
||||
pbuf[i]=match(p, sum, pbuf[f-1], pbuf[n], 0);
|
||||
|
||||
for(j=0; j<5; j++)
|
||||
sum[j]=sum[j]-buf[5*(i-3)+j]+buf[5*(i+4)+j];
|
||||
}
|
||||
|
||||
/* estimate the transition point by dividing the gap
|
||||
in the same proportion as the number of matches of each kind */
|
||||
|
||||
for(i=f, m=f; i<n; i++)
|
||||
if(pbuf[i]==pbuf[f-1]) m++;
|
||||
|
||||
/* find the transition of the right direction nearest to the
|
||||
estimated point */
|
||||
|
||||
if(m>f && m<n)
|
||||
{
|
||||
for(j=m; j>f; j--)
|
||||
if(pbuf[j-1]==pbuf[f-1] && pbuf[j]==pbuf[n]) break;
|
||||
for(s=m; s<n; s++)
|
||||
if(pbuf[s-1]==pbuf[f-1] && pbuf[s]==pbuf[n]) break;
|
||||
|
||||
m=(s-m<m-j)?s:j;
|
||||
}
|
||||
|
||||
/* and rewrite the data to allow only this one transition */
|
||||
|
||||
for(i=f; i<m; i++)
|
||||
pbuf[i]=pbuf[f-1];
|
||||
|
||||
for(; i<n; i++)
|
||||
pbuf[i]=pbuf[n];
|
||||
|
||||
f=n;
|
||||
}
|
||||
}
|
||||
|
||||
free(buf-15);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int query_format(struct vf_instance_s* vf, unsigned int fmt)
|
||||
{
|
||||
switch(fmt)
|
||||
{
|
||||
case IMGFMT_444P: case IMGFMT_IYUV: case IMGFMT_RGB24:
|
||||
case IMGFMT_422P: case IMGFMT_UYVY: case IMGFMT_BGR24:
|
||||
case IMGFMT_411P: case IMGFMT_YUY2: case IMGFMT_IF09:
|
||||
case IMGFMT_YV12: case IMGFMT_I420: case IMGFMT_YVU9:
|
||||
case IMGFMT_IUYV: case IMGFMT_Y800: case IMGFMT_Y8:
|
||||
return vf_next_query_format(vf,fmt);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void uninit(struct vf_instance_s* vf)
|
||||
{
|
||||
if(vf->priv)
|
||||
{
|
||||
if(vf->priv->file) fclose(vf->priv->file);
|
||||
if(vf->priv->csdata) free(vf->priv->csdata-15);
|
||||
free(vf->priv->bdata);
|
||||
free(vf->priv->history);
|
||||
free(vf->priv);
|
||||
}
|
||||
}
|
||||
|
||||
static int open(vf_instance_t *vf, char* args)
|
||||
{
|
||||
struct vf_priv_s *p;
|
||||
char *filename="framediff.log", *ap, *q, *a;
|
||||
|
||||
if(args && !(args=strdup(args)))
|
||||
{
|
||||
nomem:
|
||||
mp_msg(MSGT_VFILTER, MSGL_FATAL,
|
||||
"%s: Not enough memory.\n", vf->info->name);
|
||||
fail:
|
||||
uninit(vf);
|
||||
free(args);
|
||||
return 0;
|
||||
}
|
||||
|
||||
vf->put_image=put_image;
|
||||
vf->uninit=uninit;
|
||||
vf->query_format=query_format;
|
||||
vf->default_reqs=VFCAP_ACCEPT_STRIDE;
|
||||
if(!(vf->priv=p=calloc(1, sizeof(struct vf_priv_s))))
|
||||
goto nomem;
|
||||
|
||||
p->phase=5;
|
||||
p->threshold=0.5;
|
||||
p->window=30;
|
||||
|
||||
if((ap=args))
|
||||
while(*ap)
|
||||
{
|
||||
q=ap;
|
||||
if((ap=strchr(q, ':'))) *ap++=0; else ap=q+strlen(q);
|
||||
if((a=strchr(q, '='))) *a++=0; else a=q+strlen(q);
|
||||
|
||||
switch(*q)
|
||||
{
|
||||
case 0: break;
|
||||
case 'f': filename=a; break;
|
||||
case 't': p->threshold=atof(a); break;
|
||||
case 'w': p->window=5*(atoi(a)+4)/5; break;
|
||||
case 'd': p->deghost=atoi(a); break;
|
||||
case 'p':
|
||||
if(q[1]=='h') p->phase=atoi(a);
|
||||
else p->pass=atoi(a);
|
||||
break;
|
||||
|
||||
case 'h':
|
||||
mp_msg(MSGT_VFILTER, MSGL_INFO,
|
||||
"\n%s options:\n\n"
|
||||
"pass=1|2 - Use 2-pass mode.\n"
|
||||
"file=filename - Set the 2-pass log file name "
|
||||
"(default %s).\n"
|
||||
"threshold=value - Set the pattern recognition "
|
||||
"sensitivity (default %g).\n"
|
||||
"deghost=value - Select deghosting threshold "
|
||||
"(default %d).\n"
|
||||
"window=numframes - Set the statistics window "
|
||||
"for 1-pass mode (default %d).\n"
|
||||
"phase=0|1|2|3|4 - Set the initial phase "
|
||||
"for 1-pass mode (default %d).\n\n"
|
||||
"The option names can be abbreviated to the shortest "
|
||||
"unique prefix.\n\n",
|
||||
vf->info->name, filename, p->threshold, p->deghost,
|
||||
p->window, p->phase%5);
|
||||
break;
|
||||
|
||||
default:
|
||||
mp_msg(MSGT_VFILTER, MSGL_FATAL,
|
||||
"%s: Unknown argument %s.\n", vf->info->name, q);
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
|
||||
switch(p->pass)
|
||||
{
|
||||
case 1:
|
||||
if(!(p->file=fopen(filename, "w")))
|
||||
{
|
||||
mp_msg(MSGT_VFILTER, MSGL_FATAL,
|
||||
"%s: Can't create file %s.\n", vf->info->name, filename);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
case 2:
|
||||
if(!(p->file=fopen(filename, "r")))
|
||||
{
|
||||
mp_msg(MSGT_VFILTER, MSGL_FATAL,
|
||||
"%s: Can't open file %s.\n", vf->info->name, filename);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if(!analyze(p))
|
||||
goto fail;
|
||||
|
||||
fclose(p->file);
|
||||
p->file=0;
|
||||
break;
|
||||
}
|
||||
|
||||
if(p->window<5) p->window=5;
|
||||
if(!(p->history=calloc(sizeof *p->history, p->window)))
|
||||
goto nomem;
|
||||
|
||||
diff=
|
||||
#ifdef HAVE_MMX
|
||||
gCpuCaps.hasMMX?diff_MMX:
|
||||
#endif
|
||||
diff_C;
|
||||
|
||||
free(args);
|
||||
return 1;
|
||||
}
|
||||
|
||||
vf_info_t vf_info_divtc =
|
||||
{
|
||||
"inverse telecine for deinterlaced video",
|
||||
"divtc",
|
||||
"Ville Saari",
|
||||
"",
|
||||
open,
|
||||
NULL
|
||||
};
|
||||
Loading…
Reference in New Issue