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vlc-2-2
Commit cee79ce4 authored by Sam Hocevar's avatar Sam Hocevar
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* ./plugins/filter/deinterlace.c: added two new deinterlacing methods, 

    "discard" which is very CPU efficient, and "blend" (yes there used to be
    a "blend" method but it's now called "linear". Don't ask) which loses some
    vertical resolution but discards the mice teeth effect. Information was
    found on http://www.100fps.com/index.htm.

    We now have "discard", "blend", "bob" and "linear".
parent 73ec58f6
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Showing with 293 additions and 142 deletions
plugins/filter/deinterlace.c
View file @ cee79ce4
...@@ -2,7 +2,7 @@ ...@@ -2,7 +2,7 @@
* deinterlace.c : deinterlacer plugin for vlc * deinterlace.c : deinterlacer plugin for vlc
***************************************************************************** *****************************************************************************
* Copyright (C) 2000, 2001 VideoLAN * Copyright (C) 2000, 2001 VideoLAN
* $Id: deinterlace.c,v 1.14 2002/06/01 18:04:48 sam Exp $ * $Id: deinterlace.c,v 1.15 2002/06/09 16:52:58 sam Exp $
* *
* Authors: Samuel Hocevar <sam@zoy.org> * Authors: Samuel Hocevar <sam@zoy.org>
* *
...@@ -33,23 +33,30 @@ ...@@ -33,23 +33,30 @@
#include "filter_common.h" #include "filter_common.h"
#define DEINTERLACE_MODE_BOB 1 #define DEINTERLACE_DISCARD 1
#define DEINTERLACE_MODE_BLEND 2 #define DEINTERLACE_BLEND 2
#define DEINTERLACE_BOB 3
#define DEINTERLACE_LINEAR 4
/***************************************************************************** /*****************************************************************************
* Capabilities defined in the other files. * Capabilities defined in the other files.
*****************************************************************************/ *****************************************************************************/
static void vout_getfunctions( function_list_t * p_function_list ); static void vout_getfunctions( function_list_t * p_function_list );
static void *memblend( void *, const void *, const void *, size_t ); static void RenderBob ( vout_thread_t *, picture_t *, picture_t *, int );
static void RenderBlend ( vout_thread_t *, picture_t *, picture_t * );
static void RenderLinear ( vout_thread_t *, picture_t *, picture_t *, int );
static void MergeLinear ( void *, const void *, const void *, size_t );
static void MergeBlend ( void *, void *, const void *, const void *, size_t );
/***************************************************************************** /*****************************************************************************
* Build configuration tree. * Build configuration tree.
*****************************************************************************/ *****************************************************************************/
MODULE_CONFIG_START MODULE_CONFIG_START
ADD_CATEGORY_HINT( N_("Miscellaneous"), NULL ) ADD_CATEGORY_HINT( N_("Miscellaneous"), NULL )
ADD_STRING ( "deinterlace-mode", "bob", NULL, N_("Deinterlace mode"), ADD_STRING ( "deinterlace-mode", "discard", NULL, N_("Deinterlace mode"),
N_("one of 'bob' and 'blend'") ) N_("one of \"discard\", \"blend\", \"bob\" or \"linear\"") )
MODULE_CONFIG_STOP MODULE_CONFIG_STOP
MODULE_INIT_START MODULE_INIT_START
...@@ -75,9 +82,13 @@ MODULE_DEACTIVATE_STOP ...@@ -75,9 +82,13 @@ MODULE_DEACTIVATE_STOP
*****************************************************************************/ *****************************************************************************/
struct vout_sys_s struct vout_sys_s
{ {
int i_mode; int i_mode; /* Deinterlace mode */
vout_thread_t *p_vout; vlc_bool_t b_double_rate; /* Shall we double the framerate? */
mtime_t last_date; mtime_t last_date;
mtime_t next_date;
vout_thread_t *p_vout;
}; };
/***************************************************************************** /*****************************************************************************
...@@ -120,9 +131,13 @@ static int vout_Create( vout_thread_t *p_vout ) ...@@ -120,9 +131,13 @@ static int vout_Create( vout_thread_t *p_vout )
if( p_vout->p_sys == NULL ) if( p_vout->p_sys == NULL )
{ {
msg_Err( p_vout, "out of memory" ); msg_Err( p_vout, "out of memory" );
return( 1 ); return 1;
} }
p_vout->p_sys->i_mode = DEINTERLACE_DISCARD;
p_vout->p_sys->b_double_rate = 0;
p_vout->p_sys->last_date = 0;
/* Look what method was requested */ /* Look what method was requested */
psz_method = config_GetPsz( p_vout, "deinterlace-mode" ); psz_method = config_GetPsz( p_vout, "deinterlace-mode" );
...@@ -130,30 +145,41 @@ static int vout_Create( vout_thread_t *p_vout ) ...@@ -130,30 +145,41 @@ static int vout_Create( vout_thread_t *p_vout )
{ {
msg_Err( p_vout, "configuration variable %s empty", msg_Err( p_vout, "configuration variable %s empty",
"deinterlace-mode" ); "deinterlace-mode" );
msg_Err( p_vout, "no valid deinterlace mode provided, using 'bob'" ); msg_Err( p_vout, "no deinterlace mode provided, using \"discard\"" );
p_vout->p_sys->i_mode = DEINTERLACE_MODE_BOB;
} }
else else
{ {
if( !strcmp( psz_method, "bob" ) ) if( !strcmp( psz_method, "discard" ) )
{
p_vout->p_sys->i_mode = DEINTERLACE_DISCARD;
}
else if( !strcmp( psz_method, "blend" )
|| !strcmp( psz_method, "average" )
|| !strcmp( psz_method, "combine-fields" ) )
{
p_vout->p_sys->i_mode = DEINTERLACE_BLEND;
}
else if( !strcmp( psz_method, "bob" )
|| !strcmp( psz_method, "progressive-scan" ) )
{ {
p_vout->p_sys->i_mode = DEINTERLACE_MODE_BOB; p_vout->p_sys->i_mode = DEINTERLACE_BOB;
p_vout->p_sys->b_double_rate = 1;
} }
else if( !strcmp( psz_method, "blend" ) ) else if( !strcmp( psz_method, "linear" ) )
{ {
p_vout->p_sys->i_mode = DEINTERLACE_MODE_BLEND; p_vout->p_sys->i_mode = DEINTERLACE_LINEAR;
p_vout->p_sys->b_double_rate = 1;
} }
else else
{ {
msg_Err( p_vout, "no valid deinterlace mode provided, " msg_Err( p_vout, "no valid deinterlace mode provided, "
"using 'bob'" ); "using \"discard\"" );
p_vout->p_sys->i_mode = DEINTERLACE_MODE_BOB;
}
} }
free( psz_method ); free( psz_method );
}
return( 0 ); return 0;
} }
/***************************************************************************** /*****************************************************************************
...@@ -182,7 +208,7 @@ static int vout_Init( vout_thread_t *p_vout ) ...@@ -182,7 +208,7 @@ static int vout_Init( vout_thread_t *p_vout )
break; break;
default: default:
return( 0 ); /* unknown chroma */ return 0; /* unknown chroma */
break; break;
} }
...@@ -199,14 +225,16 @@ static int vout_Init( vout_thread_t *p_vout ) ...@@ -199,14 +225,16 @@ static int vout_Init( vout_thread_t *p_vout )
case FOURCC_YV12: case FOURCC_YV12:
switch( p_vout->p_sys->i_mode ) switch( p_vout->p_sys->i_mode )
{ {
case DEINTERLACE_MODE_BOB: case DEINTERLACE_DISCARD:
case DEINTERLACE_BOB:
p_vout->p_sys->p_vout = p_vout->p_sys->p_vout =
vout_CreateThread( p_vout, vout_CreateThread( p_vout,
p_vout->output.i_width, p_vout->output.i_height / 2, p_vout->output.i_width, p_vout->output.i_height / 2,
p_vout->output.i_chroma, p_vout->output.i_aspect ); p_vout->output.i_chroma, p_vout->output.i_aspect );
break; break;
case DEINTERLACE_MODE_BLEND: case DEINTERLACE_BLEND:
case DEINTERLACE_LINEAR:
p_vout->p_sys->p_vout = p_vout->p_sys->p_vout =
vout_CreateThread( p_vout, vout_CreateThread( p_vout,
p_vout->output.i_width, p_vout->output.i_height, p_vout->output.i_width, p_vout->output.i_height,
...@@ -234,14 +262,12 @@ static int vout_Init( vout_thread_t *p_vout ) ...@@ -234,14 +262,12 @@ static int vout_Init( vout_thread_t *p_vout )
{ {
msg_Err( p_vout, "cannot open vout, aborting" ); msg_Err( p_vout, "cannot open vout, aborting" );
return( 0 ); return 0;
} }
p_vout->p_sys->last_date = 0;
ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES ); ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
return( 0 ); return 0;
} }
/***************************************************************************** /*****************************************************************************
...@@ -279,7 +305,7 @@ static void vout_Destroy( vout_thread_t *p_vout ) ...@@ -279,7 +305,7 @@ static void vout_Destroy( vout_thread_t *p_vout )
*****************************************************************************/ *****************************************************************************/
static int vout_Manage( vout_thread_t *p_vout ) static int vout_Manage( vout_thread_t *p_vout )
{ {
return( 0 ); return 0;
} }
/***************************************************************************** /*****************************************************************************
...@@ -291,31 +317,96 @@ static int vout_Manage( vout_thread_t *p_vout ) ...@@ -291,31 +317,96 @@ static int vout_Manage( vout_thread_t *p_vout )
*****************************************************************************/ *****************************************************************************/
static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic ) static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic )
{ {
picture_t *p_outpic; picture_t *pp_outpic[2];
int i_plane, i_field;
/* 20ms is a bit arbitrary, but it's only for the first image we get */
mtime_t new_date = p_vout->p_sys->last_date
? ( 3 * p_pic->date - p_vout->p_sys->last_date ) / 2
: p_pic->date + 20000;
p_vout->p_sys->last_date = p_pic->date; /* Get a new picture */
while( ( pp_outpic[0] = vout_CreatePicture( p_vout->p_sys->p_vout,
0, 0, 0 ) )
== NULL )
{
if( p_vout->b_die || p_vout->b_error )
{
return;
}
msleep( VOUT_OUTMEM_SLEEP );
}
vout_DatePicture( p_vout->p_sys->p_vout, pp_outpic[0], p_pic->date );
for( i_field = 0 ; i_field < 2 ; i_field++ ) /* If we are using double rate, get an additional new picture */
if( p_vout->p_sys->b_double_rate )
{ {
/* Get a structure from the video_output. */ while( ( pp_outpic[1] = vout_CreatePicture( p_vout->p_sys->p_vout,
while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout,
0, 0, 0 ) ) 0, 0, 0 ) )
== NULL ) == NULL )
{ {
if( p_vout->b_die || p_vout->b_error ) if( p_vout->b_die || p_vout->b_error )
{ {
vout_DestroyPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
return; return;
} }
msleep( VOUT_OUTMEM_SLEEP ); msleep( VOUT_OUTMEM_SLEEP );
} }
vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, /* 20ms is a bit arbitrary, but it's only for the first image we get */
p_pic->date + i_field ? new_date : p_pic->date ); if( !p_vout->p_sys->last_date )
{
vout_DatePicture( p_vout->p_sys->p_vout, pp_outpic[1],
p_pic->date + 20000 );
}
else
{
vout_DatePicture( p_vout->p_sys->p_vout, pp_outpic[1],
(3 * p_pic->date - p_vout->p_sys->last_date) / 2 );
}
p_vout->p_sys->last_date = p_pic->date;
}
switch( p_vout->p_sys->i_mode )
{
case DEINTERLACE_DISCARD:
RenderBob( p_vout, pp_outpic[0], p_pic, 0 );
vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
break;
case DEINTERLACE_BOB:
RenderBob( p_vout, pp_outpic[0], p_pic, 0 );
vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
RenderBob( p_vout, pp_outpic[1], p_pic, 1 );
vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[1] );
break;
case DEINTERLACE_LINEAR:
RenderLinear( p_vout, pp_outpic[0], p_pic, 0 );
vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
RenderLinear( p_vout, pp_outpic[1], p_pic, 1 );
vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[1] );
break;
case DEINTERLACE_BLEND:
RenderBlend( p_vout, pp_outpic[0], p_pic );
vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
break;
}
}
/*****************************************************************************
* vout_Display: displays previously rendered output
*****************************************************************************
* This function does nothing, since all the rendering was already done.
*****************************************************************************/
static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
{
;
}
/*****************************************************************************
* RenderBob: renders a bob picture
*****************************************************************************/
static void RenderBob( vout_thread_t *p_vout,
picture_t *p_outpic, picture_t *p_pic, int i_field )
{
int i_plane;
/* Copy image and skip lines */ /* Copy image and skip lines */
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ ) for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
...@@ -336,9 +427,6 @@ static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic ) ...@@ -336,9 +427,6 @@ static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic )
case FOURCC_IYUV: case FOURCC_IYUV:
case FOURCC_YV12: case FOURCC_YV12:
switch( p_vout->p_sys->i_mode )
{
case DEINTERLACE_MODE_BOB:
for( ; p_out < p_out_end ; ) for( ; p_out < p_out_end ; )
{ {
p_vout->p_vlc->pf_memcpy( p_out, p_in, p_vout->p_vlc->pf_memcpy( p_out, p_in,
...@@ -349,7 +437,61 @@ static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic ) ...@@ -349,7 +437,61 @@ static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic )
} }
break; break;
case DEINTERLACE_MODE_BLEND: case FOURCC_I422:
i_increment = 2 * p_pic->p[i_plane].i_pitch;
if( i_plane == Y_PLANE )
{
for( ; p_out < p_out_end ; )
{
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
p_out += p_pic->p[i_plane].i_pitch;
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
p_out += p_pic->p[i_plane].i_pitch;
p_in += i_increment;
}
}
else
{
for( ; p_out < p_out_end ; )
{
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
p_out += p_pic->p[i_plane].i_pitch;
p_in += i_increment;
}
}
break;
default:
break;
}
}
}
/*****************************************************************************
* RenderLinear: displays previously rendered output
*****************************************************************************/
static void RenderLinear( vout_thread_t *p_vout,
picture_t *p_outpic, picture_t *p_pic, int i_field )
{
int i_plane;
/* Copy image and skip lines */
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
{
u8 *p_in, *p_out_end, *p_out;
p_in = p_pic->p[i_plane].p_pixels
+ i_field * p_pic->p[i_plane].i_pitch;
p_out = p_outpic->p[i_plane].p_pixels;
p_out_end = p_out + p_outpic->p[i_plane].i_pitch
* p_outpic->p[i_plane].i_lines;
if( i_field == 0 ) if( i_field == 0 )
{ {
p_vout->p_vlc->pf_memcpy( p_out, p_in, p_vout->p_vlc->pf_memcpy( p_out, p_in,
...@@ -367,7 +509,7 @@ static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic ) ...@@ -367,7 +509,7 @@ static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic )
p_out += p_pic->p[i_plane].i_pitch; p_out += p_pic->p[i_plane].i_pitch;
memblend( p_out, p_in, MergeLinear( p_out, p_in,
p_in + 2 * p_pic->p[i_plane].i_pitch, p_in + 2 * p_pic->p[i_plane].i_pitch,
p_pic->p[i_plane].i_pitch ); p_pic->p[i_plane].i_pitch );
...@@ -383,62 +525,38 @@ static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic ) ...@@ -383,62 +525,38 @@ static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic )
p_pic->p[i_plane].i_pitch ); p_pic->p[i_plane].i_pitch );
} }
#endif #endif
break;
} }
break; }
case FOURCC_I422:
i_increment = 2 * p_pic->p[i_plane].i_pitch; static void RenderBlend( vout_thread_t *p_vout,
picture_t *p_outpic, picture_t *p_pic )
{
int i_plane;
if( i_plane == Y_PLANE ) /* Copy image and skip lines */
{ for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
for( ; p_out < p_out_end ; )
{
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
p_out += p_pic->p[i_plane].i_pitch;
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
p_out += p_pic->p[i_plane].i_pitch;
p_in += i_increment;
}
}
else
{ {
u8 *p_in, *p_out_end, *p_out;
p_in = p_pic->p[i_plane].p_pixels;
p_out = p_outpic->p[i_plane].p_pixels;
p_out_end = p_out + p_outpic->p[i_plane].i_pitch
* p_outpic->p[i_plane].i_lines;
for( ; p_out < p_out_end ; ) for( ; p_out < p_out_end ; )
{ {
p_vout->p_vlc->pf_memcpy( p_out, p_in, MergeBlend( p_out, p_out + p_outpic->p[i_plane].i_pitch,
p_in, p_in + p_pic->p[i_plane].i_pitch,
p_pic->p[i_plane].i_pitch ); p_pic->p[i_plane].i_pitch );
p_out += p_pic->p[i_plane].i_pitch;
p_in += i_increment;
}
}
break;
default: p_out += 2 * p_pic->p[i_plane].i_pitch;
break; p_in += 2 * p_pic->p[i_plane].i_pitch;
}
} }
vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
} }
} }
/***************************************************************************** static void MergeLinear( void *p_dest, const void *p_s1,
* vout_Display: displays previously rendered output
*****************************************************************************
* This function send the currently rendered image to Invert image, waits
* until it is displayed and switch the two rendering buffers, preparing next
* frame.
*****************************************************************************/
static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
{
;
}
static void *memblend( void *p_dest, const void *p_s1,
const void *p_s2, size_t i_bytes ) const void *p_s2, size_t i_bytes )
{ {
u8* p_end = (u8*)p_dest + i_bytes - 8; u8* p_end = (u8*)p_dest + i_bytes - 8;
...@@ -461,7 +579,40 @@ static void *memblend( void *p_dest, const void *p_s1, ...@@ -461,7 +579,40 @@ static void *memblend( void *p_dest, const void *p_s1,
{ {
*(u8*)p_dest++ = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1; *(u8*)p_dest++ = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
} }
}
static void MergeBlend( void *p_dest1, void *p_dest2,
const void *p_s1, const void *p_s2, size_t i_bytes )
{
u8* p_end1 = (u8*)p_dest1 + i_bytes - 8;
u8 i;
while( (u8*)p_dest1 < p_end1 )
{
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
}
p_end1 += 8;
return p_dest; while( (u8*)p_dest1 < p_end1 )
{
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
}
} }
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