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Commit 922a7a8e authored by Gildas Bazin's avatar Gildas Bazin
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* modules/audio_output/waveout.c: compilation fix for --disable-plugins build.
* src/video_output/*, include/video.h: added a pf_lock/unlock fonction
   pointer that's used to lock the memory of a picture in vout_RenderPicture
   when required by the video output plugin.
* modules/video_output/directx/*: implemented pf_lock/unlock. That will fix
   the crash when pressing ctrl+alt+del.
parent f2de4386
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Showing with 126 additions and 92 deletions
include/video.h
View file @ 922a7a8e
......@@ -4,7 +4,7 @@
* includes all common video types and constants.
*****************************************************************************
* Copyright (C) 1999, 2000 VideoLAN
* $Id: video.h,v 1.61 2002/11/25 19:29:10 sam Exp $
* $Id: video.h,v 1.62 2003/03/28 17:02:25 gbazin Exp $
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
*
......@@ -80,6 +80,10 @@ struct picture_t
/* The picture heap we are attached to */
picture_heap_t* p_heap;
/* Some vouts require the picture to be locked before it can be modified */
int (* pf_lock) ( vout_thread_t *, picture_t * );
int (* pf_unlock) ( vout_thread_t *, picture_t * );
/* Private data - the video output plugin might want to put stuff here to
* keep track of the picture */
picture_sys_t * p_sys;
......
modules/audio_output/waveout.c
View file @ 922a7a8e
......@@ -2,7 +2,7 @@
* waveout.c : Windows waveOut plugin for vlc
*****************************************************************************
* Copyright (C) 2001 VideoLAN
* $Id: waveout.c,v 1.19 2003/02/20 16:07:38 gbazin Exp $
* $Id: waveout.c,v 1.20 2003/03/28 17:02:25 gbazin Exp $
*
* Authors: Gildas Bazin <gbazin@netcourrier.com>
*
......@@ -93,14 +93,14 @@ typedef struct {
#endif
#include <initguid.h>
#ifndef KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
DEFINE_GUID( KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, WAVE_FORMAT_IEEE_FLOAT, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
#ifndef KKSDATAFORMAT_SUBTYPE_IEEE_FLOAT
DEFINE_GUID( KKSDATAFORMAT_SUBTYPE_IEEE_FLOAT, WAVE_FORMAT_IEEE_FLOAT, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
#endif
#ifndef KSDATAFORMAT_SUBTYPE_PCM
DEFINE_GUID( KSDATAFORMAT_SUBTYPE_PCM, WAVE_FORMAT_PCM, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
#ifndef KKSDATAFORMAT_SUBTYPE_PCM
DEFINE_GUID( KKSDATAFORMAT_SUBTYPE_PCM, WAVE_FORMAT_PCM, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
#endif
#ifndef KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF
DEFINE_GUID( KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF, WAVE_FORMAT_DOLBY_AC3_SPDIF, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
#ifndef KKSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF
DEFINE_GUID( KKSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF, WAVE_FORMAT_DOLBY_AC3_SPDIF, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
#endif
/*****************************************************************************
......@@ -480,7 +480,7 @@ static int OpenWaveOut( aout_instance_t *p_aout, int i_format,
waveformat.Samples.wValidBitsPerSample =
waveformat.Format.wBitsPerSample;
waveformat.Format.wFormatTag = WAVE_FORMAT_DOLBY_AC3_SPDIF;
waveformat.SubFormat = KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF;
waveformat.SubFormat = KKSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF;
break;
case VLC_FOURCC('f','l','3','2'):
......@@ -488,7 +488,7 @@ static int OpenWaveOut( aout_instance_t *p_aout, int i_format,
waveformat.Samples.wValidBitsPerSample =
waveformat.Format.wBitsPerSample;
waveformat.Format.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
waveformat.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
waveformat.SubFormat = KKSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
break;
case VLC_FOURCC('s','1','6','l'):
......@@ -496,7 +496,7 @@ static int OpenWaveOut( aout_instance_t *p_aout, int i_format,
waveformat.Samples.wValidBitsPerSample =
waveformat.Format.wBitsPerSample;
waveformat.Format.wFormatTag = WAVE_FORMAT_PCM;
waveformat.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
waveformat.SubFormat = KKSDATAFORMAT_SUBTYPE_PCM;
break;
}
......
modules/video_output/directx/directx.c
View file @ 922a7a8e
......@@ -2,7 +2,7 @@
* vout.c: Windows DirectX video output display method
*****************************************************************************
* Copyright (C) 2001 VideoLAN
* $Id: directx.c,v 1.14 2003/03/04 22:48:55 gbazin Exp $
* $Id: directx.c,v 1.15 2003/03/28 17:02:25 gbazin Exp $
*
* Authors: Gildas Bazin <gbazin@netcourrier.com>
*
......@@ -83,7 +83,8 @@ static void DirectXCloseSurface ( vout_thread_t *p_vout,
LPDIRECTDRAWSURFACE2 );
static int DirectXCreateClipper ( vout_thread_t *p_vout );
static void DirectXGetDDrawCaps ( vout_thread_t *p_vout );
static int DirectXGetSurfaceDesc ( vout_thread_t *p_vout, picture_t *p_pic );
static int DirectXLockSurface ( vout_thread_t *p_vout, picture_t *p_pic );
static int DirectXUnlockSurface ( vout_thread_t *p_vout, picture_t *p_pic );
/*****************************************************************************
* Module descriptor
......@@ -100,12 +101,17 @@ static int DirectXGetSurfaceDesc ( vout_thread_t *p_vout, picture_t *p_pic );
"isn't recommended as usually using video memory allows to benefit from " \
"more hardware acceleration (like rescaling or YUV->RGB conversions). " \
"This option doesn't have any effect when using overlays." )
#define TRIPLEBUF_TEXT N_("use triple buffering for overlays")
#define TRIPLEBUF_LONGTEXT N_( \
"Try to use triple bufferring when using YUV overlays. That results in " \
"much better video quality (no flickering)." )
vlc_module_begin();
add_category_hint( N_("Video"), NULL, VLC_FALSE );
add_bool( "directx-on-top", 0, NULL, ON_TOP_TEXT, ON_TOP_LONGTEXT, VLC_FALSE );
add_bool( "directx-hw-yuv", 1, NULL, HW_YUV_TEXT, HW_YUV_LONGTEXT, VLC_TRUE );
add_bool( "directx-use-sysmem", 0, NULL, SYSMEM_TEXT, SYSMEM_LONGTEXT, VLC_TRUE );
add_bool( "directx-3buffering", 1, NULL, TRIPLEBUF_TEXT, TRIPLEBUF_LONGTEXT, VLC_TRUE );
set_description( _("DirectX video module") );
set_capability( "video output", 100 );
add_shortcut( "directx" );
......@@ -158,6 +164,7 @@ static int OpenVideo( vlc_object_t *p_this )
p_vout->p_sys->b_using_overlay = config_GetInt( p_vout, "overlay" );
p_vout->p_sys->b_use_sysmem = config_GetInt( p_vout, "directx-use-sysmem");
p_vout->p_sys->b_hw_yuv = config_GetInt( p_vout, "directx-hw-yuv" );
p_vout->p_sys->b_3buf_overlay = config_GetInt( p_vout, "directx-3buffering" );
p_vout->p_sys->b_cursor_hidden = 0;
p_vout->p_sys->i_lastmoved = mdate();
......@@ -518,6 +525,16 @@ static void Display( vout_thread_t *p_vout, picture_t *p_pic )
return;
}
/* Our surface can be lost so be sure to check this
* and restore it if need be */
if( IDirectDrawSurface2_IsLost( p_vout->p_sys->p_display )
== DDERR_SURFACELOST )
{
if( IDirectDrawSurface2_Restore( p_vout->p_sys->p_display ) == DD_OK &&
p_vout->p_sys->b_using_overlay )
DirectXUpdateOverlay( p_vout );
}
if( !p_vout->p_sys->b_using_overlay )
{
DDBLTFX ddbltfx;
......@@ -533,20 +550,6 @@ static void Display( vout_thread_t *p_vout, picture_t *p_pic )
p_pic->p_sys->p_surface,
&p_vout->p_sys->rect_src_clipped,
DDBLT_ASYNC, &ddbltfx );
if ( dxresult == DDERR_SURFACELOST )
{
/* Our surface can be lost so be sure
* to check this and restore it if needed */
IDirectDrawSurface2_Restore( p_vout->p_sys->p_display );
/* Now that the surface has been restored try to display again */
dxresult = IDirectDrawSurface2_Blt( p_vout->p_sys->p_display,
&p_vout->p_sys->rect_dest_clipped,
p_pic->p_sys->p_surface,
&p_vout->p_sys->rect_src_clipped,
DDBLT_ASYNC, &ddbltfx );
}
if( dxresult != DD_OK )
{
msg_Warn( p_vout, "could not blit surface (error %i)", dxresult );
......@@ -564,40 +567,22 @@ static void Display( vout_thread_t *p_vout, picture_t *p_pic )
dxresult = IDirectDrawSurface2_Flip( p_pic->p_sys->p_front_surface,
NULL, DDFLIP_WAIT );
if ( dxresult == DDERR_SURFACELOST )
{
/* Our surface can be lost so be sure
* to check this and restore it if needed */
IDirectDrawSurface2_Restore( p_vout->p_sys->p_display );
IDirectDrawSurface2_Restore( p_pic->p_sys->p_front_surface );
/* Now that the surface has been restored try to display again */
dxresult = IDirectDrawSurface2_Flip( p_pic->p_sys->p_front_surface,
NULL, DDFLIP_WAIT );
DirectXUpdateOverlay( p_vout );
}
if( dxresult != DD_OK )
{
msg_Warn( p_vout, "could not flip overlay (error %i)", dxresult );
}
if( DirectXGetSurfaceDesc( p_vout, p_pic ) )
{
/* AAARRGG */
msg_Err( p_vout, "cannot get surface desc" );
return;
}
/* set currently displayed pic */
p_vout->p_sys->p_current_surface = p_pic->p_sys->p_front_surface;
if( UpdatePictureStruct( p_vout, p_pic, p_vout->output.i_chroma ) )
/* Lock surface to get all the required info */
if( DirectXLockSurface( p_vout, p_pic ) )
{
/* AAARRGG */
msg_Err( p_vout, "invalid pic chroma" );
msg_Warn( p_vout, "cannot lock surface" );
return;
}
/* set currently displayed pic */
p_vout->p_sys->p_current_surface = p_pic->p_sys->p_front_surface;
DirectXUnlockSurface( p_vout, p_pic );
}
}
......@@ -949,14 +934,12 @@ void DirectXUpdateOverlay( vout_thread_t *p_vout )
&p_vout->p_sys->rect_src_clipped,
p_vout->p_sys->p_display,
&p_vout->p_sys->rect_dest_clipped,
dwFlags,
&ddofx );
dwFlags, &ddofx );
if(dxresult != DD_OK)
{
msg_Warn( p_vout,
"DirectXUpdateOverlay cannot move or resize overlay" );
}
}
/*****************************************************************************
......@@ -1048,13 +1031,13 @@ static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic,
/* Triple buffering rocks! it doesn't have any processing overhead
* (you don't have to wait for the vsync) and provides for a very nice
* video quality (no tearing). */
if( p_vout->p_sys->b_3buf_overlay )
i_ret = DirectXCreateSurface( p_vout, &p_surface,
p_vout->output.i_chroma,
p_vout->p_sys->b_using_overlay,
2 /* number of backbuffers */ );
i_ret = DirectXCreateSurface( p_vout, &p_surface,
p_vout->output.i_chroma,
p_vout->p_sys->b_using_overlay,
2 /* number of backbuffers */ );
if( i_ret != VLC_SUCCESS )
if( !p_vout->p_sys->b_3buf_overlay || i_ret != VLC_SUCCESS )
{
/* Try to reduce the number of backbuffers */
i_ret = DirectXCreateSurface( p_vout, &p_surface,
......@@ -1098,9 +1081,7 @@ static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic,
p_pic[0].p_sys->p_front_surface;
/* Reset the front buffer memory */
if( !DirectXGetSurfaceDesc( p_vout, &front_pic ) &&
!UpdatePictureStruct( p_vout, &front_pic,
p_vout->output.i_chroma ) )
if( DirectXLockSurface( p_vout, &front_pic ) == VLC_SUCCESS )
{
int i,j;
for( i = 0; i < front_pic.i_planes; i++ )
......@@ -1108,6 +1089,8 @@ static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic,
memset( front_pic.p[i].p_pixels + j *
front_pic.p[i].i_pitch, 127,
front_pic.p[i].i_visible_pitch );
DirectXUnlockSurface( p_vout, &front_pic );
}
DirectXUpdateOverlay( p_vout );
......@@ -1197,6 +1180,7 @@ static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic,
DirectXCloseSurface( p_vout, p_surface );
return VLC_ENOMEM;
}
p_pic[0].p_sys->p_surface = p_pic[0].p_sys->p_front_surface
= p_surface;
......@@ -1214,25 +1198,19 @@ static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic,
{
p_pic[i].i_status = DESTROYED_PICTURE;
p_pic[i].i_type = DIRECT_PICTURE;
p_pic[i].pf_lock = DirectXLockSurface;
p_pic[i].pf_unlock = DirectXUnlockSurface;
PP_OUTPUTPICTURE[i] = &p_pic[i];
if( DirectXGetSurfaceDesc( p_vout, &p_pic[i] ) )
if( DirectXLockSurface( p_vout, &p_pic[i] ) != VLC_SUCCESS )
{
/* AAARRGG */
FreePictureVec( p_vout, p_pic, I_OUTPUTPICTURES );
I_OUTPUTPICTURES = 0;
msg_Err( p_vout, "cannot lock surface" );
return VLC_EGENERIC;
}
if( UpdatePictureStruct(p_vout, &p_pic[i], p_vout->output.i_chroma) )
{
/* Unknown chroma, tell the guy to get lost */
msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
FreePictureVec( p_vout, p_pic, I_OUTPUTPICTURES );
I_OUTPUTPICTURES = 0;
return VLC_EGENERIC;
}
DirectXUnlockSurface( p_vout, &p_pic[i] );
}
msg_Dbg( p_vout, "End NewPictureVec (%s)",
......@@ -1370,7 +1348,10 @@ static int UpdatePictureStruct( vout_thread_t *p_vout, picture_t *p_pic,
break;
default:
/* Not supported */
/* Unknown chroma, tell the guy to get lost */
msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
p_vout->output.i_chroma,
(char*)&p_vout->output.i_chroma );
return VLC_EGENERIC;
}
......@@ -1431,12 +1412,12 @@ static void DirectXGetDDrawCaps( vout_thread_t *p_vout )
}
/*****************************************************************************
* DirectXGetSurfaceDesc: Get some more information about the surface
* DirectXLockSurface: Lock surface and get picture data pointer
*****************************************************************************
* This function get and stores the surface descriptor which among things
* has the pointer to the picture data.
* This function locks a surface and get the surface descriptor which amongst
* other things has the pointer to the picture data.
*****************************************************************************/
static int DirectXGetSurfaceDesc( vout_thread_t *p_vout, picture_t *p_pic )
static int DirectXLockSurface( vout_thread_t *p_vout, picture_t *p_pic )
{
HRESULT dxresult;
......@@ -1461,20 +1442,46 @@ static int DirectXGetSurfaceDesc( vout_thread_t *p_vout, picture_t *p_pic )
{
/* Your surface can be lost so be sure
* to check this and restore it if needed */
dxresult = IDirectDrawSurface2_Restore( p_pic->p_sys->p_surface );
/* When using overlays with back-buffers, we need to restore
* the front buffer so the back-buffers get restored as well. */
if( p_vout->p_sys->b_using_overlay )
IDirectDrawSurface2_Restore( p_pic->p_sys->p_front_surface );
else
IDirectDrawSurface2_Restore( p_pic->p_sys->p_surface );
dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
&p_pic->p_sys->ddsd,
DDLOCK_WAIT, NULL);
&p_pic->p_sys->ddsd,
DDLOCK_WAIT, NULL);
if( dxresult == DDERR_SURFACELOST )
msg_Dbg( p_vout, "DirectXLockSurface: DDERR_SURFACELOST" );
}
if( dxresult != DD_OK )
{
msg_Err( p_vout, "DirectXGetSurfaceDesc cannot lock surface" );
return VLC_EGENERIC;
}
}
/* Unlock the Surface */
dxresult = IDirectDrawSurface2_Unlock( p_pic->p_sys->p_surface, NULL );
/* Now we have a pointer to the surface memory, we can update our picture
* structure. */
if( UpdatePictureStruct( p_vout, p_pic, p_vout->output.i_chroma )
!= VLC_SUCCESS )
{
DirectXUnlockSurface( p_vout, p_pic );
return VLC_EGENERIC;
}
else
return VLC_SUCCESS;
}
return VLC_SUCCESS;
/*****************************************************************************
* DirectXUnlockSurface: Unlock a surface locked by DirectXLockSurface().
*****************************************************************************/
static int DirectXUnlockSurface( vout_thread_t *p_vout, picture_t *p_pic )
{
/* Unlock the Surface */
if( IDirectDrawSurface2_Unlock( p_pic->p_sys->p_surface, NULL ) == DD_OK )
return VLC_SUCCESS;
else
return VLC_EGENERIC;
}
modules/video_output/directx/vout.h
View file @ 922a7a8e
......@@ -2,7 +2,7 @@
* vout.h: Windows DirectX video output header file
*****************************************************************************
* Copyright (C) 1998, 1999, 2000 VideoLAN
* $Id: vout.h,v 1.3 2002/10/25 18:17:59 sam Exp $
* $Id: vout.h,v 1.4 2003/03/28 17:02:25 gbazin Exp $
*
* Authors: Gildas Bazin <gbazin@netcourrier.com>
*
......@@ -54,6 +54,7 @@ struct vout_sys_t
vlc_bool_t b_using_overlay; /* Are we using an overlay surface */
vlc_bool_t b_use_sysmem; /* Should we use system memory for surfaces */
vlc_bool_t b_hw_yuv; /* Should we use hardware YUV->RGB conversions */
vlc_bool_t b_3buf_overlay; /* Should we use triple buffered overlays */
/* size of the display */
RECT rect_display;
......
src/video_output/video_output.c
View file @ 922a7a8e
......@@ -5,7 +5,7 @@
* thread, and destroy a previously oppened video output thread.
*****************************************************************************
* Copyright (C) 2000-2001 VideoLAN
* $Id: video_output.c,v 1.216 2003/03/25 17:07:45 gbazin Exp $
* $Id: video_output.c,v 1.217 2003/03/28 17:02:25 gbazin Exp $
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
*
......@@ -288,6 +288,8 @@ vout_thread_t * __vout_Create( vlc_object_t *p_parent,
* will be initialized later in InitThread */
for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES; i_index++)
{
p_vout->p_picture[i_index].pf_lock = NULL;
p_vout->p_picture[i_index].pf_unlock = NULL;
p_vout->p_picture[i_index].i_status = FREE_PICTURE;
p_vout->p_picture[i_index].i_type = EMPTY_PICTURE;
}
......@@ -796,7 +798,7 @@ static void RunThread( vout_thread_t *p_vout)
/*
* Call the plugin-specific rendering method if there is one
*/
if( p_picture != NULL && p_vout->pf_render )
if( p_picture != NULL && p_directbuffer != NULL && p_vout->pf_render )
{
/* Render the direct buffer returned by vout_RenderPicture */
p_vout->pf_render( p_vout, p_directbuffer );
......@@ -805,7 +807,7 @@ static void RunThread( vout_thread_t *p_vout)
/*
* Sleep, wake up
*/
if( display_date != 0 )
if( display_date != 0 && p_directbuffer != NULL )
{
/* Store render time using a sliding mean */
p_vout->render_time += mdate() - current_date;
......@@ -832,7 +834,7 @@ static void RunThread( vout_thread_t *p_vout)
/*
* Display the previously rendered picture
*/
if( p_picture != NULL )
if( p_picture != NULL && p_directbuffer != NULL )
{
/* Display the direct buffer returned by vout_RenderPicture */
if( p_vout->pf_display )
......
src/video_output/vout_pictures.c
View file @ 922a7a8e
......@@ -2,7 +2,7 @@
* vout_pictures.c : picture management functions
*****************************************************************************
* Copyright (C) 2000 VideoLAN
* $Id: vout_pictures.c,v 1.35 2003/03/10 18:26:33 gbazin Exp $
* $Id: vout_pictures.c,v 1.36 2003/03/28 17:02:25 gbazin Exp $
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
......@@ -330,10 +330,23 @@ picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
/* Picture is not in a direct buffer, but is exactly the
* same size as the direct buffers. A memcpy() is enough,
* then render the subtitles. */
if( PP_OUTPUTPICTURE[0]->pf_lock )
if( PP_OUTPUTPICTURE[0]->pf_lock( p_vout, PP_OUTPUTPICTURE[0] ) )
{
if( PP_OUTPUTPICTURE[0]->pf_unlock )
PP_OUTPUTPICTURE[0]->pf_unlock( p_vout, PP_OUTPUTPICTURE[0] );
return NULL;
}
CopyPicture( p_vout, p_pic, PP_OUTPUTPICTURE[0] );
vout_RenderSubPictures( p_vout, PP_OUTPUTPICTURE[0], p_subpic );
if( PP_OUTPUTPICTURE[0]->pf_unlock )
PP_OUTPUTPICTURE[0]->pf_unlock( p_vout, PP_OUTPUTPICTURE[0] );
return PP_OUTPUTPICTURE[0];
}
......@@ -342,12 +355,19 @@ picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
* well. This usually means software YUV, or hardware YUV with a
* different chroma. */
if( p_vout->p_picture[0].pf_lock )
if( p_vout->p_picture[0].pf_lock( p_vout, &p_vout->p_picture[0] ) )
return NULL;
/* Convert image to the first direct buffer */
p_vout->chroma.pf_convert( p_vout, p_pic, &p_vout->p_picture[0] );
/* Render subpictures on the first direct buffer */
vout_RenderSubPictures( p_vout, &p_vout->p_picture[0], p_subpic );
if( p_vout->p_picture[0].pf_unlock )
p_vout->p_picture[0].pf_unlock( p_vout, &p_vout->p_picture[0] );
return &p_vout->p_picture[0];
}
......
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