mirror of
https://github.com/mpv-player/mpv
synced 2024-12-19 13:21:13 +00:00
"halfpack" (yuv planar 4:2:0 -> packed 4:2:2, half height) video filter
(useful for downsampling luma for low-res output devices without losing chroma samples, when hardware downscaling is poor quality or unavailable) git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7156 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rfelker
parent
05253c1c9b
commit
c66e62b6a5
@ -6,7 +6,7 @@ LIBNAME2 = libmpencoders.a
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AUDIO_SRCS=dec_audio.c ad.c ad_a52.c ad_acm.c ad_alaw.c ad_dk3adpcm.c ad_dshow.c ad_dvdpcm.c ad_ffmpeg.c ad_hwac3.c ad_imaadpcm.c ad_mp3.c ad_msadpcm.c ad_pcm.c ad_roqaudio.c ad_msgsm.c ad_faad.c ad_vorbis.c ad_libmad.c ad_real.c ad_libdv.c
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VIDEO_SRCS=dec_video.c vd.c vd_null.c vd_real.c vd_cinepak.c vd_qtrpza.c vd_ffmpeg.c vd_dshow.c vd_vfw.c vd_odivx.c vd_divx4.c vd_raw.c vd_xanim.c vd_msvidc.c vd_fli.c vd_qtrle.c vd_qtsmc.c vd_roqvideo.c vd_cyuv.c vd_nuv.c vd_libmpeg2.c vd_msrle.c vd_huffyuv.c vd_zlib.c vd_mpegpes.c vd_svq1.c vd_xvid.c vd_libdv.c
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VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_format.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
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VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_format.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_halfpack.c
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ENCODER_SRCS=ve.c ve_divx4.c ve_lavc.c ve_vfw.c ve_rawrgb.c ve_libdv.c
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NATIVE_SRCS=native/RTjpegN.c native/cinepak.c native/cyuv.c native/fli.c native/minilzo.c native/msvidc.c native/nuppelvideo.c native/qtrle.c native/qtrpza.c native/qtsmc.c native/roqav.c native/xa_gsm.c native/svq1.c
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@ -39,6 +39,7 @@ extern vf_info_t vf_info_noise;
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extern vf_info_t vf_info_yvu9;
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extern vf_info_t vf_info_lavcdeint;
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extern vf_info_t vf_info_eq;
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extern vf_info_t vf_info_halfpack;
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char** vo_plugin_args=(char**) NULL;
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@ -71,6 +72,7 @@ static vf_info_t* filter_list[]={
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&vf_info_noise,
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&vf_info_yvu9,
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&vf_info_eq,
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&vf_info_halfpack,
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NULL
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};
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200
libmpcodecs/vf_halfpack.c
Normal file
200
libmpcodecs/vf_halfpack.c
Normal file
@ -0,0 +1,200 @@
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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 <inttypes.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 "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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#include "../postproc/rgb2rgb.h"
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#ifdef HAVE_MMX
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static void halfpack_MMX(unsigned char *dst, unsigned char *src[3],
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unsigned int dststride, unsigned int srcstride[3],
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int w, int h)
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{
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int j;
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unsigned char *y1, *y2, *u, *v;
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unsigned int dstinc, yinc, uinc, vinc;
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y1 = src[0];
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y2 = src[0] + srcstride[0];
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u = src[1];
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v = src[2];
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dstinc = dststride - 2*w;
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yinc = 2*srcstride[0] - w;
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uinc = srcstride[1] - w/2;
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vinc = srcstride[2] - w/2;
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for (h/=2; h; h--) {
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asm (
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"pxor %%mm0, %%mm0 \n\t"
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".align 16 \n\t"
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"1: \n\t"
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"movq (%0), %%mm1 \n\t"
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"movq (%0), %%mm2 \n\t"
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"movq (%1), %%mm3 \n\t"
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"movq (%1), %%mm4 \n\t"
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"punpcklbw %%mm0, %%mm1 \n\t"
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"punpckhbw %%mm0, %%mm2 \n\t"
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"punpcklbw %%mm0, %%mm3 \n\t"
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"punpckhbw %%mm0, %%mm4 \n\t"
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"paddw %%mm3, %%mm1 \n\t"
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"paddw %%mm4, %%mm2 \n\t"
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"psrlw $1, %%mm1 \n\t"
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"psrlw $1, %%mm2 \n\t"
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"movq (%2), %%mm3 \n\t"
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"movq (%3), %%mm5 \n\t"
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"punpcklbw %%mm0, %%mm3 \n\t"
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"punpcklbw %%mm0, %%mm5 \n\t"
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"movq %%mm3, %%mm4 \n\t"
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"movq %%mm5, %%mm6 \n\t"
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"punpcklwd %%mm0, %%mm3 \n\t"
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"punpckhwd %%mm0, %%mm4 \n\t"
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"punpcklwd %%mm0, %%mm5 \n\t"
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"punpckhwd %%mm0, %%mm6 \n\t"
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"pslld $8, %%mm3 \n\t"
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"pslld $8, %%mm4 \n\t"
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"pslld $24, %%mm5 \n\t"
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"pslld $24, %%mm6 \n\t"
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"por %%mm3, %%mm1 \n\t"
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"por %%mm4, %%mm2 \n\t"
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"por %%mm5, %%mm1 \n\t"
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"por %%mm6, %%mm2 \n\t"
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"addl $8, %0 \n\t"
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"addl $8, %1 \n\t"
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"addl $4, %2 \n\t"
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"addl $4, %3 \n\t"
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"movq %%mm1, (%8) \n\t"
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"movq %%mm2, 8(%8) \n\t"
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"addl $16, %8 \n\t"
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"decl %9 \n\t"
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"jnz 1b \n\t"
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: "=r" (y1), "=r" (y2), "=r" (u), "=r" (v)
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: "0" (y1), "1" (y2), "2" (u), "3" (v), "r" (dst), "r" (w/8)
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: "memory"
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);
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for (j = (w&7)/2; j; j--) {
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*dst++ = (*y1++ + *y2++)/2;
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*dst++ = *u++;
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*dst++ = (*y1++ + *y2++)/2;
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*dst++ = *v++;
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}
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y1 += yinc;
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y2 += yinc;
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u += uinc;
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v += vinc;
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dst += dstinc;
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}
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asm volatile ( "emms \n\t" ::: "memory" );
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}
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#endif
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static void halfpack_C(unsigned char *dst, unsigned char *src[3],
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unsigned int dststride, unsigned int srcstride[3],
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int w, int h)
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{
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int i, j;
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unsigned char *y1, *y2, *u, *v;
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unsigned int dstinc, yinc, uinc, vinc;
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y1 = src[0];
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y2 = src[0] + srcstride[0];
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u = src[1];
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v = src[2];
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dstinc = dststride - 2*w;
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yinc = 2*srcstride[0] - w;
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uinc = srcstride[1] - w/2;
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vinc = srcstride[2] - w/2;
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for (i = h/2; i; i--) {
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for (j = w/2; j; j--) {
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*dst++ = (*y1++ + *y2++)>>1;
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*dst++ = *u++;
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*dst++ = (*y1++ + *y2++)>>1;
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*dst++ = *v++;
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}
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y1 += yinc;
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y2 += yinc;
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u += uinc;
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v += vinc;
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dst += dstinc;
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}
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}
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static void (*halfpack)(unsigned char *dst, unsigned char *src[3],
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unsigned int dststride, unsigned int srcstride[3], int w, int h);
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static void put_image(struct vf_instance_s* vf, mp_image_t *mpi)
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{
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mp_image_t *dmpi;
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// hope we'll get DR buffer:
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dmpi=vf_get_image(vf->next, IMGFMT_YUY2,
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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mpi->w, mpi->h/2);
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halfpack(dmpi->planes[0], mpi->planes,
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dmpi->stride[0], mpi->stride,
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mpi->w, mpi->h);
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vf_next_put_image(vf,dmpi);
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}
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static int config(struct vf_instance_s* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt)
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{
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/* FIXME - also support UYVY output? */
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return vf_next_config(vf, width, height/2, d_width, d_height, flags, IMGFMT_YUY2);
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}
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static int query_format(struct vf_instance_s* vf, unsigned int fmt)
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{
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/* FIXME - really any YUV 4:2:0 input format should work */
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switch (fmt) {
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case IMGFMT_YV12:
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case IMGFMT_IYUV:
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case IMGFMT_I420:
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return vf_next_query_format(vf,IMGFMT_YUY2);
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}
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return 0;
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}
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static int open(vf_instance_t *vf, char* args)
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{
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vf->config=config;
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vf->query_format=query_format;
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vf->put_image=put_image;
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halfpack = halfpack_C;
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#ifdef HAVE_MMX
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if(gCpuCaps.hasMMX) halfpack = halfpack_MMX;
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#endif
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return 1;
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}
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vf_info_t vf_info_halfpack = {
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"yuv planar 4:2:0 -> packed 4:2:2, half height",
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"halfpack",
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"Richard Felker",
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"",
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open
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};
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