new filter: flip

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5558 b3059339-0415-0410-9bf9-f77b7e298cf2

libmpcodecs/Makefile

@@ -6,7 +6,7 @@ LIBNAME2 = libmpencoders.a
 
 AUDIO_SRCS=dec_audio.c ad.c ad_a52.c ad_acm.c ad_alaw.c ad_dk3adpcm.c ad_dk4adpcm.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
 VIDEO_SRCS=dec_video.c vd.c vd_null.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
-VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_fame.c vf_format.c vf_yuy2.c
+VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_fame.c vf_format.c vf_yuy2.c vf_flip.c
 ENCODER_SRCS=ve.c ve_divx4.c ve_lavc.c ve_vfw.c ve_rawrgb.c
 
 ifeq ($(PNG),yes)

libmpcodecs/vf.c

@@ -17,6 +17,7 @@ extern vf_info_t vf_info_scale;
 extern vf_info_t vf_info_fame;
 extern vf_info_t vf_info_format;
 extern vf_info_t vf_info_yuy2;
+extern vf_info_t vf_info_flip;
 
 char** vo_plugin_args=(char**) NULL;
 
@@ -31,6 +32,7 @@ static vf_info_t* filter_list[]={
     &vf_info_fame,
     &vf_info_format,
     &vf_info_yuy2,
+    &vf_info_flip,
     NULL
 };
 

libmpcodecs/vf_flip.c

@@ -0,0 +1,84 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../config.h"
+#include "../mp_msg.h"
+
+#include "../mp_image.h"
+#include "vf.h"
+
+#include "../libvo/fastmemcpy.h"
+
+struct vf_priv_s {
+    mp_image_t *dmpi;
+};
+
+//===========================================================================//
+
+static void get_image(struct vf_instance_s* vf, mp_image_t *mpi){
+    if(mpi->flags&MP_IMGFLAG_ACCEPT_STRIDE){
+	// try full DR !
+	vf->priv->dmpi=vf_get_image(vf->next,mpi->imgfmt,
+	    mpi->type, mpi->flags, mpi->width, mpi->height);
+	// set up mpi as a upside-down image of dmpi:
+	mpi->planes[0]=vf->priv->dmpi->planes[0]+
+		    vf->priv->dmpi->stride[0]*(vf->priv->dmpi->height-1);
+	mpi->stride[0]=-vf->priv->dmpi->stride[0];
+	if(mpi->flags&MP_IMGFLAG_PLANAR){
+	    mpi->planes[1]=vf->priv->dmpi->planes[1]+
+		    vf->priv->dmpi->stride[1]*((vf->priv->dmpi->height>>1)-1);
+	    mpi->stride[1]=-vf->priv->dmpi->stride[1];
+	    mpi->planes[2]=vf->priv->dmpi->planes[2]+
+		    vf->priv->dmpi->stride[2]*((vf->priv->dmpi->height>>1)-1);
+	    mpi->stride[2]=-vf->priv->dmpi->stride[2];
+	}
+	mpi->flags|=MP_IMGFLAG_DIRECT;
+    }
+}
+
+static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
+    if(mpi->flags&MP_IMGFLAG_DIRECT){
+	vf_next_put_image(vf,vf->priv->dmpi);
+	return; // we've used DR, so we're ready...
+    }
+
+    // hope we'll get DR buffer:
+    vf->priv->dmpi=vf_get_image(vf->next,mpi->imgfmt,
+	MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
+	mpi->width, mpi->height);
+    
+    // set up mpi as a upside-down image of dmpi:
+    vf->priv->dmpi->planes[0]=mpi->planes[0]+
+		    mpi->stride[0]*(mpi->height-1);
+    vf->priv->dmpi->stride[0]=-mpi->stride[0];
+    if(vf->priv->dmpi->flags&MP_IMGFLAG_PLANAR){
+        vf->priv->dmpi->planes[1]=mpi->planes[1]+
+	    mpi->stride[1]*((mpi->height>>1)-1);
+	vf->priv->dmpi->stride[1]=-mpi->stride[1];
+	vf->priv->dmpi->planes[2]=mpi->planes[2]+
+	    mpi->stride[2]*((mpi->height>>1)-1);
+	vf->priv->dmpi->stride[2]=-mpi->stride[2];
+    }
+    
+    vf_next_put_image(vf,vf->priv->dmpi);
+}
+
+//===========================================================================//
+
+static int open(vf_instance_t *vf, char* args){
+    vf->get_image=get_image;
+    vf->put_image=put_image;
+    vf->priv=malloc(sizeof(struct vf_priv_s));
+    return 1;
+}
+
+vf_info_t vf_info_flip = {
+    "flip image upside-down",
+    "flip",
+    "A'rpi",
+    "",
+    open
+};
+
+//===========================================================================//