Skip to content

V
vlc-2-2
Commit cee79ce4 authored by Sam Hocevar's avatar Sam Hocevar
Browse files
Options

* ./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
Hide whitespace changes
Inline Side-by-side
Showing with 293 additions and 142 deletions
plugins/filter/deinterlace.c
View file @ cee79ce4
......@@ -2,7 +2,7 @@
* deinterlace.c : deinterlacer plugin for vlc
*****************************************************************************
* 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>
*
......@@ -33,23 +33,30 @@
#include "filter_common.h"
#define DEINTERLACE_MODE_BOB 1
#define DEINTERLACE_MODE_BLEND 2
#define DEINTERLACE_DISCARD 1
#define DEINTERLACE_BLEND 2
#define DEINTERLACE_BOB 3
#define DEINTERLACE_LINEAR 4
/*****************************************************************************
* Capabilities defined in the other files.
*****************************************************************************/
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.
*****************************************************************************/
MODULE_CONFIG_START
ADD_CATEGORY_HINT( N_("Miscellaneous"), NULL )
ADD_STRING ( "deinterlace-mode", "bob", NULL, N_("Deinterlace mode"),
N_("one of 'bob' and 'blend'") )
ADD_STRING ( "deinterlace-mode", "discard", NULL, N_("Deinterlace mode"),
N_("one of \"discard\", \"blend\", \"bob\" or \"linear\"") )
MODULE_CONFIG_STOP
MODULE_INIT_START
......@@ -75,9 +82,13 @@ MODULE_DEACTIVATE_STOP
*****************************************************************************/
struct vout_sys_s
{
int i_mode;
int i_mode; /* Deinterlace mode */
vlc_bool_t b_double_rate; /* Shall we double the framerate? */
mtime_t last_date;
mtime_t next_date;
vout_thread_t *p_vout;
mtime_t last_date;
};
/*****************************************************************************
......@@ -120,9 +131,13 @@ static int vout_Create( vout_thread_t *p_vout )
if( p_vout->p_sys == NULL )
{
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 */
psz_method = config_GetPsz( p_vout, "deinterlace-mode" );
......@@ -130,30 +145,41 @@ static int vout_Create( vout_thread_t *p_vout )
{
msg_Err( p_vout, "configuration variable %s empty",
"deinterlace-mode" );
msg_Err( p_vout, "no valid deinterlace mode provided, using 'bob'" );
p_vout->p_sys->i_mode = DEINTERLACE_MODE_BOB;
msg_Err( p_vout, "no deinterlace mode provided, using \"discard\"" );
}
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_MODE_BOB;
p_vout->p_sys->i_mode = DEINTERLACE_BLEND;
}
else if( !strcmp( psz_method, "blend" ) )
else if( !strcmp( psz_method, "bob" )
|| !strcmp( psz_method, "progressive-scan" ) )
{
p_vout->p_sys->i_mode = DEINTERLACE_MODE_BLEND;
p_vout->p_sys->i_mode = DEINTERLACE_BOB;
p_vout->p_sys->b_double_rate = 1;
}
else if( !strcmp( psz_method, "linear" ) )
{
p_vout->p_sys->i_mode = DEINTERLACE_LINEAR;
p_vout->p_sys->b_double_rate = 1;
}
else
{
msg_Err( p_vout, "no valid deinterlace mode provided, "
"using 'bob'" );
p_vout->p_sys->i_mode = DEINTERLACE_MODE_BOB;
"using \"discard\"" );
}
}
free( psz_method );
free( psz_method );
}
return( 0 );
return 0;
}
/*****************************************************************************
......@@ -182,7 +208,7 @@ static int vout_Init( vout_thread_t *p_vout )
break;
default:
return( 0 ); /* unknown chroma */
return 0; /* unknown chroma */
break;
}
......@@ -199,14 +225,16 @@ static int vout_Init( vout_thread_t *p_vout )
case FOURCC_YV12:
switch( p_vout->p_sys->i_mode )
{
case DEINTERLACE_MODE_BOB:
case DEINTERLACE_DISCARD:
case DEINTERLACE_BOB:
p_vout->p_sys->p_vout =
vout_CreateThread( p_vout,
p_vout->output.i_width, p_vout->output.i_height / 2,
p_vout->output.i_chroma, p_vout->output.i_aspect );
break;
case DEINTERLACE_MODE_BLEND:
case DEINTERLACE_BLEND:
case DEINTERLACE_LINEAR:
p_vout->p_sys->p_vout =
vout_CreateThread( p_vout,
p_vout->output.i_width, p_vout->output.i_height,
......@@ -234,14 +262,12 @@ static int vout_Init( vout_thread_t *p_vout )
{
msg_Err( p_vout, "cannot open vout, aborting" );
return( 0 );
return 0;
}
p_vout->p_sys->last_date = 0;
ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
return( 0 );
return 0;
}
/*****************************************************************************
......@@ -279,7 +305,7 @@ static void vout_Destroy( vout_thread_t *p_vout )
*****************************************************************************/
static int vout_Manage( vout_thread_t *p_vout )
{
return( 0 );
return 0;
}
/*****************************************************************************
......@@ -291,155 +317,247 @@ static int vout_Manage( vout_thread_t *p_vout )
*****************************************************************************/
static void vout_Render ( vout_thread_t *p_vout, picture_t *p_pic )
{
picture_t *p_outpic;
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;
picture_t *pp_outpic[2];
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 );
}
for( i_field = 0 ; i_field < 2 ; i_field++ )
vout_DatePicture( p_vout->p_sys->p_vout, pp_outpic[0], p_pic->date );
/* 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( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout,
0, 0, 0 ) )
while( ( pp_outpic[1] = vout_CreatePicture( p_vout->p_sys->p_vout,
0, 0, 0 ) )
== NULL )
{
if( p_vout->b_die || p_vout->b_error )
{
vout_DestroyPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
return;
}
msleep( VOUT_OUTMEM_SLEEP );
}
vout_DatePicture( p_vout->p_sys->p_vout, p_outpic,
p_pic->date + i_field ? new_date : p_pic->date );
/* Copy image and skip lines */
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
/* 20ms is a bit arbitrary, but it's only for the first image we get */
if( !p_vout->p_sys->last_date )
{
vout_DatePicture( p_vout->p_sys->p_vout, pp_outpic[1],
p_pic->date + 20000 );
}
else
{
u8 *p_in, *p_out_end, *p_out;
int i_increment;
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;
}
p_in = p_pic->p[i_plane].p_pixels
+ i_field * p_pic->p[i_plane].i_pitch;
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;
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;
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;
switch( p_vout->render.i_chroma )
{
case FOURCC_I420:
case FOURCC_IYUV:
case FOURCC_YV12:
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;
switch( p_vout->p_sys->i_mode )
{
case DEINTERLACE_MODE_BOB:
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 += 2 * p_pic->p[i_plane].i_pitch;
}
break;
case DEINTERLACE_MODE_BLEND:
if( i_field == 0 )
{
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
p_in += 2 * p_pic->p[i_plane].i_pitch;
p_out += p_pic->p[i_plane].i_pitch;
}
p_out_end -= p_outpic->p[i_plane].i_pitch;
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;
memblend( p_out, p_in,
p_in + 2 * p_pic->p[i_plane].i_pitch,
p_pic->p[i_plane].i_pitch );
p_in += 2 * p_pic->p[i_plane].i_pitch;
p_out += p_pic->p[i_plane].i_pitch;
}
case DEINTERLACE_BLEND:
RenderBlend( p_vout, pp_outpic[0], p_pic );
vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
break;
}
}
#if 0
if( i_field == 0 )
{
p_in -= 2 * p_pic->p[i_plane].i_pitch;
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
}
#endif
/*****************************************************************************
* 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 )
{
;
}
break;
}
break;
/*****************************************************************************
* 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 */
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
{
u8 *p_in, *p_out_end, *p_out;
int i_increment;
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;
switch( p_vout->render.i_chroma )
{
case FOURCC_I420:
case FOURCC_IYUV:
case FOURCC_YV12:
for( ; p_out < p_out_end ; )
{
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
case FOURCC_I422:
p_out += p_pic->p[i_plane].i_pitch;
p_in += 2 * p_pic->p[i_plane].i_pitch;
}
break;
case FOURCC_I422:
i_increment = 2 * p_pic->p[i_plane].i_pitch;
i_increment = 2 * p_pic->p[i_plane].i_pitch;
if( i_plane == Y_PLANE )
if( i_plane == Y_PLANE )
{
for( ; p_out < p_out_end ; )
{
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;
}
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
}
else
{
for( ; p_out < p_out_end ; )
{
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;
}
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;
}
}
break;
vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
default:
break;
}
}
}
/*****************************************************************************
* 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.
* RenderLinear: displays previously rendered output
*****************************************************************************/
static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
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 )
{
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
p_in += 2 * p_pic->p[i_plane].i_pitch;
p_out += p_pic->p[i_plane].i_pitch;
}
p_out_end -= p_outpic->p[i_plane].i_pitch;
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;
MergeLinear( p_out, p_in,
p_in + 2 * p_pic->p[i_plane].i_pitch,
p_pic->p[i_plane].i_pitch );
p_in += 2 * p_pic->p[i_plane].i_pitch;
p_out += p_pic->p[i_plane].i_pitch;
}
#if 0
if( i_field == 0 )
{
p_in -= 2 * p_pic->p[i_plane].i_pitch;
p_vout->p_vlc->pf_memcpy( p_out, p_in,
p_pic->p[i_plane].i_pitch );
}
#endif
}
}
static void *memblend( void *p_dest, const void *p_s1,
const void *p_s2, size_t i_bytes )
static void RenderBlend( vout_thread_t *p_vout,
picture_t *p_outpic, picture_t *p_pic )
{
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;
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 ; )
{
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_out += 2 * p_pic->p[i_plane].i_pitch;
p_in += 2 * p_pic->p[i_plane].i_pitch;
}
}
}
static void MergeLinear( void *p_dest, const void *p_s1,
const void *p_s2, size_t i_bytes )
{
u8* p_end = (u8*)p_dest + i_bytes - 8;
......@@ -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;
}
}
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;
}
return p_dest;
p_end1 += 8;
while( (u8*)p_dest1 < p_end1 )
{
i = ( (u16)(*(u8*)p_s1++) + (u16)(*(u8*)p_s2++) ) >> 1;
*(u8*)p_dest1++ = *(u8*)p_dest2++ = i;
}
}
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment