2 * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of MPlayer.
6 * MPlayer is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * MPlayer is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #include <libavutil/eval.h>
30 #include "cpudetect.h"
31 #include "img_format.h"
34 #include "libvo/fastmemcpy.h"
44 static int config(struct vf_instance
*vf
,
45 int width
, int height
, int d_width
, int d_height
,
46 unsigned int flags
, unsigned int outfmt
){
47 int h
= (height
+15)>>4;
50 vf
->priv
->qp_stride
= (width
+15)>>4;
51 vf
->priv
->qp
= av_malloc(vf
->priv
->qp_stride
*h
*sizeof(int8_t));
53 for(i
=-129; i
<128; i
++){
54 double const_values
[]={
61 const char * const const_names
[]={
71 res
= av_expr_parse_and_eval(&temp_val
, vf
->priv
->eq
, const_names
, const_values
, NULL
, NULL
, NULL
, NULL
, NULL
, 0, NULL
);
74 mp_msg(MSGT_VFILTER
, MSGL_ERR
, "qp: Error evaluating \"%s\" \n", vf
->priv
->eq
);
77 vf
->priv
->lut
[i
+129]= lrintf(temp_val
);
80 return vf_next_config(vf
,width
,height
,d_width
,d_height
,flags
,outfmt
);
83 static void get_image(struct vf_instance
*vf
, mp_image_t
*mpi
){
84 if(mpi
->flags
&MP_IMGFLAG_PRESERVE
) return; // don't change
85 // ok, we can do pp in-place (or pp disabled):
86 vf
->dmpi
=vf_get_image(vf
->next
,mpi
->imgfmt
,
87 mpi
->type
, mpi
->flags
, mpi
->w
, mpi
->h
);
88 mpi
->planes
[0]=vf
->dmpi
->planes
[0];
89 mpi
->stride
[0]=vf
->dmpi
->stride
[0];
90 mpi
->width
=vf
->dmpi
->width
;
91 if(mpi
->flags
&MP_IMGFLAG_PLANAR
){
92 mpi
->planes
[1]=vf
->dmpi
->planes
[1];
93 mpi
->planes
[2]=vf
->dmpi
->planes
[2];
94 mpi
->stride
[1]=vf
->dmpi
->stride
[1];
95 mpi
->stride
[2]=vf
->dmpi
->stride
[2];
97 mpi
->flags
|=MP_IMGFLAG_DIRECT
;
100 static int put_image(struct vf_instance
*vf
, mp_image_t
*mpi
, double pts
){
104 if(!(mpi
->flags
&MP_IMGFLAG_DIRECT
)){
105 // no DR, so get a new image! hope we'll get DR buffer:
106 vf
->dmpi
=vf_get_image(vf
->next
,mpi
->imgfmt
,
107 MP_IMGTYPE_TEMP
, MP_IMGFLAG_ACCEPT_STRIDE
|MP_IMGFLAG_PREFER_ALIGNED_STRIDE
,
113 if(!(mpi
->flags
&MP_IMGFLAG_DIRECT
)){
114 memcpy_pic(dmpi
->planes
[0], mpi
->planes
[0], mpi
->w
, mpi
->h
, dmpi
->stride
[0], mpi
->stride
[0]);
115 if(mpi
->flags
&MP_IMGFLAG_PLANAR
){
116 memcpy_pic(dmpi
->planes
[1], mpi
->planes
[1], mpi
->w
>>mpi
->chroma_x_shift
, mpi
->h
>>mpi
->chroma_y_shift
, dmpi
->stride
[1], mpi
->stride
[1]);
117 memcpy_pic(dmpi
->planes
[2], mpi
->planes
[2], mpi
->w
>>mpi
->chroma_x_shift
, mpi
->h
>>mpi
->chroma_y_shift
, dmpi
->stride
[2], mpi
->stride
[2]);
120 vf_clone_mpi_attributes(dmpi
, mpi
);
122 dmpi
->qscale
= vf
->priv
->qp
;
123 dmpi
->qstride
= vf
->priv
->qp_stride
;
125 for(y
=0; y
<((dmpi
->h
+15)>>4); y
++){
126 for(x
=0; x
<vf
->priv
->qp_stride
; x
++){
127 dmpi
->qscale
[x
+ dmpi
->qstride
*y
]=
128 vf
->priv
->lut
[ 129 + ((int8_t)mpi
->qscale
[x
+ mpi
->qstride
*y
]) ];
132 int qp
= vf
->priv
->lut
[0];
133 for(y
=0; y
<((dmpi
->h
+15)>>4); y
++){
134 for(x
=0; x
<vf
->priv
->qp_stride
; x
++){
135 dmpi
->qscale
[x
+ dmpi
->qstride
*y
]= qp
;
140 return vf_next_put_image(vf
,dmpi
, pts
);
143 static void uninit(struct vf_instance
*vf
){
144 if(!vf
->priv
) return;
146 av_free(vf
->priv
->qp
);
153 //===========================================================================//
154 static int vf_open(vf_instance_t
*vf
, char *args
){
156 vf
->put_image
=put_image
;
157 vf
->get_image
=get_image
;
159 vf
->priv
=av_malloc(sizeof(struct vf_priv_s
));
160 memset(vf
->priv
, 0, sizeof(struct vf_priv_s
));
164 if (args
) strncpy(vf
->priv
->eq
, args
, 199);
169 const vf_info_t vf_info_qp
= {
172 "Michael Niedermayer",