/*****************************************************************************
* chroma.c: chroma conversion using ffmpeg library
*****************************************************************************
- * Copyright (C) 1999-2001 VideoLAN
- * $Id: chroma.c,v 1.1 2003/04/27 15:25:11 gbazin Exp $
+ * Copyright (C) 1999-2001 the VideoLAN team
+ * $Id$
*
- * Authors: Gildas Bazin <gbazin@netcourrier.com>
+ * Authors: Gildas Bazin <gbazin@videolan.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
#include <vlc/vlc.h>
-#include <vlc/vout.h>
+#include <vlc_vout.h>
+
+#if defined(HAVE_FFMPEG_SWSCALE_H) || defined(HAVE_LIBSWSCALE_TREE)
+#include <vlc_filter.h>
+#endif
/* ffmpeg header */
#ifdef HAVE_FFMPEG_AVCODEC_H
#include "ffmpeg.h"
-void ChromaConversion( vout_thread_t *, picture_t *, picture_t * );
+#if !defined(HAVE_FFMPEG_SWSCALE_H) && !defined(HAVE_LIBSWSCALE_TREE)
+void E_(InitLibavcodec) ( vlc_object_t *p_object );
+static void ChromaConversion( vout_thread_t *, picture_t *, picture_t * );
/*****************************************************************************
* chroma_sys_t: chroma method descriptor
int i_src_ffmpeg_chroma;
int i_dst_vlc_chroma;
int i_dst_ffmpeg_chroma;
+ AVPicture tmp_pic;
+ ImgReSampleContext *p_rsc;
};
/*****************************************************************************
i_vlc_chroma[1] = p_vout->output.i_chroma;
for( i = 0; i < 2; i++ )
{
- switch( i_vlc_chroma[i] )
- {
-
- /* Planar YUV formats */
- case VLC_FOURCC('I','4','4','4'):
- i_ffmpeg_chroma[i] = PIX_FMT_YUV444P;
- break;
-
- case VLC_FOURCC('I','4','2','2'):
- i_ffmpeg_chroma[i] = PIX_FMT_YUV422P;
- break;
-
- case VLC_FOURCC('Y','V','1','2'):
- case VLC_FOURCC('I','4','2','0'):
- case VLC_FOURCC('I','Y','U','V'):
- i_ffmpeg_chroma[i] = PIX_FMT_YUV420P;
- break;
-
- case VLC_FOURCC('I','4','1','1'):
- i_ffmpeg_chroma[i] = PIX_FMT_YUV411P;
- break;
-
- case VLC_FOURCC('I','4','1','0'):
- i_ffmpeg_chroma[i] = PIX_FMT_YUV410P;
- break;
-
- /* Packed YUV formats */
-
- case VLC_FOURCC('Y','U','Y','2'):
- case VLC_FOURCC('U','Y','V','Y'):
- i_ffmpeg_chroma[i] = PIX_FMT_YUV422;
- break;
-
- /* Packed RGB formats */
-
- case VLC_FOURCC('R','V','3','2'):
- i_ffmpeg_chroma[i] = PIX_FMT_RGBA32;
- break;
-
- case VLC_FOURCC('R','V','2','4'):
- i_ffmpeg_chroma[i] = PIX_FMT_RGB24;
- //i_ffmpeg_chroma[i] = PIX_FMT_BGR24;
- break;
-
- case VLC_FOURCC('R','V','1','6'):
- i_ffmpeg_chroma[i] = PIX_FMT_RGB565;
- break;
-
- case VLC_FOURCC('R','V','1','5'):
- i_ffmpeg_chroma[i] = PIX_FMT_RGB555;
- break;
-
- case VLC_FOURCC('R','G','B','2'):
- i_ffmpeg_chroma[i] = PIX_FMT_GRAY8;
- break;
-
- default:
- return VLC_EGENERIC;
- break;
- }
+ i_ffmpeg_chroma[i] = E_(GetFfmpegChroma)( i_vlc_chroma[i] );
+ if( i_ffmpeg_chroma[i] < 0 ) return VLC_EGENERIC;
}
p_vout->chroma.pf_convert = ChromaConversion;
p_vout->chroma.p_sys = malloc( sizeof( chroma_sys_t ) );
if( p_vout->chroma.p_sys == NULL )
{
- return VLC_EGENERIC;
+ return VLC_ENOMEM;
}
p_vout->chroma.p_sys->i_src_vlc_chroma = p_vout->render.i_chroma;
p_vout->chroma.p_sys->i_src_ffmpeg_chroma = i_ffmpeg_chroma[0];
p_vout->chroma.p_sys->i_dst_ffmpeg_chroma = i_ffmpeg_chroma[1];
+ if( ( p_vout->render.i_height != p_vout->output.i_height ||
+ p_vout->render.i_width != p_vout->output.i_width ) &&
+ ( p_vout->chroma.p_sys->i_dst_vlc_chroma == VLC_FOURCC('I','4','2','0') ||
+ p_vout->chroma.p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','1','2') ))
+ {
+ msg_Dbg( p_vout, "preparing to resample picture" );
+ p_vout->chroma.p_sys->p_rsc =
+ img_resample_init( p_vout->output.i_width, p_vout->output.i_height,
+ p_vout->render.i_width, p_vout->render.i_height );
+ avpicture_alloc( &p_vout->chroma.p_sys->tmp_pic,
+ p_vout->chroma.p_sys->i_dst_ffmpeg_chroma,
+ p_vout->render.i_width, p_vout->render.i_height );
+ }
+ else
+ {
+ msg_Dbg( p_vout, "no resampling" );
+ p_vout->chroma.p_sys->p_rsc = NULL;
+ }
+
+ /* libavcodec needs to be initialized for some chroma conversions */
+ E_(InitLibavcodec)(p_this);
+
return VLC_SUCCESS;
}
/*****************************************************************************
* ChromaConversion: actual chroma conversion function
*****************************************************************************/
-void ChromaConversion( vout_thread_t *p_vout,
- picture_t *p_src, picture_t *p_dest )
+static void ChromaConversion( vout_thread_t *p_vout,
+ picture_t *p_src, picture_t *p_dest )
{
AVPicture src_pic;
AVPicture dest_pic;
}
/* Special cases */
- if( p_vout->chroma.p_sys->i_src_vlc_chroma == VLC_FOURCC('Y','V','1','2') )
+ if( p_vout->chroma.p_sys->i_src_vlc_chroma == VLC_FOURCC('Y','V','1','2') ||
+ p_vout->chroma.p_sys->i_src_vlc_chroma == VLC_FOURCC('Y','V','U','9') )
{
/* Invert U and V */
src_pic.data[1] = p_src->p[2].p_pixels;
src_pic.data[2] = p_src->p[1].p_pixels;
}
- if( p_vout->chroma.p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','1','2') )
+ if( p_vout->chroma.p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','1','2') ||
+ p_vout->chroma.p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','U','9') )
{
/* Invert U and V */
dest_pic.data[1] = p_dest->p[2].p_pixels;
dest_pic.data[2] = p_dest->p[1].p_pixels;
}
+ if( p_vout->chroma.p_sys->i_src_ffmpeg_chroma == PIX_FMT_RGB24 )
+ if( p_vout->render.i_bmask == 0x00ff0000 )
+ p_vout->chroma.p_sys->i_src_ffmpeg_chroma = PIX_FMT_BGR24;
+
+ if( p_vout->chroma.p_sys->p_rsc )
+ {
+ img_convert( &p_vout->chroma.p_sys->tmp_pic,
+ p_vout->chroma.p_sys->i_dst_ffmpeg_chroma,
+ &src_pic, p_vout->chroma.p_sys->i_src_ffmpeg_chroma,
+ p_vout->render.i_width, p_vout->render.i_height );
+ img_resample( p_vout->chroma.p_sys->p_rsc, &dest_pic,
+ &p_vout->chroma.p_sys->tmp_pic );
+ }
+ else
+ {
+ img_convert( &dest_pic, p_vout->chroma.p_sys->i_dst_ffmpeg_chroma,
+ &src_pic, p_vout->chroma.p_sys->i_src_ffmpeg_chroma,
+ p_vout->render.i_width, p_vout->render.i_height );
+ }
+}
+
+/*****************************************************************************
+ * CloseChroma: free the chroma function
+ *****************************************************************************
+ * This function frees the previously allocated chroma function
+ *****************************************************************************/
+void E_(CloseChroma)( vlc_object_t *p_this )
+{
+ vout_thread_t *p_vout = (vout_thread_t *)p_this;
+ if( p_vout->chroma.p_sys->p_rsc )
+ {
+ img_resample_close( p_vout->chroma.p_sys->p_rsc );
+ avpicture_free( &p_vout->chroma.p_sys->tmp_pic );
+ }
+ free( p_vout->chroma.p_sys );
+}
+#else
+
+static void ChromaConversion( vout_thread_t *, picture_t *, picture_t * );
+
+/*****************************************************************************
+ * chroma_sys_t: chroma method descriptor
+ *****************************************************************************
+ * This structure is part of the chroma transformation descriptor, it
+ * describes the chroma plugin specific properties.
+ *****************************************************************************/
+struct chroma_sys_t
+{
+ filter_t *p_swscaler;
+};
+
+/*****************************************************************************
+ * Video Filter2 functions
+ *****************************************************************************/
+struct filter_owner_sys_t
+{
+ vout_thread_t *p_vout;
+};
+
+static void PictureRelease( picture_t *p_pic )
+{
+ if( p_pic->p_data_orig ) free( p_pic->p_data_orig );
+}
- img_convert( &dest_pic, p_vout->chroma.p_sys->i_dst_ffmpeg_chroma,
- &src_pic, p_vout->chroma.p_sys->i_src_ffmpeg_chroma,
- p_vout->render.i_width, p_vout->render.i_height );
+static picture_t *video_new_buffer_filter( filter_t *p_filter )
+{
+ picture_t *p_picture = malloc( sizeof(picture_t) );
+ if( !p_picture ) return NULL;
+ if( vout_AllocatePicture( p_filter, p_picture,
+ p_filter->fmt_out.video.i_chroma,
+ p_filter->fmt_out.video.i_width,
+ p_filter->fmt_out.video.i_height,
+ p_filter->fmt_out.video.i_aspect )
+ != VLC_SUCCESS )
+ {
+ free( p_picture );
+ return NULL;
+ }
+
+ p_picture->pf_release = PictureRelease;
+
+ return p_picture;
}
+
+static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
+{
+ VLC_UNUSED(p_filter);
+ if( p_pic )
+ {
+ free( p_pic->p_data_orig );
+ free( p_pic );
+ }
+}
+
+/*****************************************************************************
+ * OpenChroma: allocate a chroma function
+ *****************************************************************************
+ * This function allocates and initializes a chroma function
+ *****************************************************************************/
+int E_(OpenChroma)( vlc_object_t *p_this )
+{
+ vout_thread_t *p_vout = (vout_thread_t *)p_this;
+ chroma_sys_t *p_sys = p_vout->chroma.p_sys;
+
+ p_vout->chroma.p_sys = p_sys = malloc( sizeof( chroma_sys_t ) );
+ if( p_vout->chroma.p_sys == NULL )
+ {
+ return VLC_ENOMEM;
+ }
+ p_vout->chroma.pf_convert = ChromaConversion;
+
+ p_sys->p_swscaler = vlc_object_create( p_vout, VLC_OBJECT_FILTER );
+ vlc_object_attach( p_sys->p_swscaler, p_vout );
+
+ p_sys->p_swscaler->pf_vout_buffer_new = video_new_buffer_filter;
+ p_sys->p_swscaler->pf_vout_buffer_del = video_del_buffer_filter;
+
+ p_sys->p_swscaler->fmt_out.video.i_x_offset =
+ p_sys->p_swscaler->fmt_out.video.i_y_offset = 0;
+ p_sys->p_swscaler->fmt_in.video = p_vout->fmt_in;
+ p_sys->p_swscaler->fmt_out.video = p_vout->fmt_out;
+ p_sys->p_swscaler->fmt_out.video.i_aspect = p_vout->render.i_aspect;
+ p_sys->p_swscaler->fmt_in.video.i_chroma = p_vout->render.i_chroma;
+ p_sys->p_swscaler->fmt_out.video.i_chroma = p_vout->output.i_chroma;
+
+ p_sys->p_swscaler->p_module = module_Need( p_sys->p_swscaler,
+ "video filter2", 0, 0 );
+
+ if( p_sys->p_swscaler->p_module )
+ {
+ p_sys->p_swscaler->p_owner =
+ malloc( sizeof( filter_owner_sys_t ) );
+ if( p_sys->p_swscaler->p_owner )
+ p_sys->p_swscaler->p_owner->p_vout = p_vout;
+ }
+
+ if( !p_sys->p_swscaler->p_module || !p_sys->p_swscaler->p_owner )
+ {
+ vlc_object_detach( p_sys->p_swscaler );
+ vlc_object_destroy( p_sys->p_swscaler );
+ free( p_vout->chroma.p_sys );
+ return VLC_EGENERIC;
+ }
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * ChromaConversion: actual chroma conversion function
+ *****************************************************************************/
+static void ChromaConversion( vout_thread_t *p_vout,
+ picture_t *p_src, picture_t *p_dest )
+{
+ chroma_sys_t *p_sys = (chroma_sys_t *) p_vout->chroma.p_sys;
+
+ if( p_sys && p_src && p_dest &&
+ p_sys->p_swscaler && p_sys->p_swscaler->p_module )
+ {
+ picture_t *p_pic;
+
+ p_sys->p_swscaler->fmt_in.video = p_vout->fmt_in;
+ p_sys->p_swscaler->fmt_out.video = p_vout->fmt_out;
+
+#if 0
+ msg_Dbg( p_vout, "chroma %4.4s (%d) to %4.4s (%d)",
+ (char *)&p_vout->fmt_in.i_chroma, p_src->i_planes,
+ (char *)&p_vout->fmt_out.i_chroma, p_dest->i_planes );
+#endif
+ p_pic = p_sys->p_swscaler->pf_vout_buffer_new( p_sys->p_swscaler );
+ if( p_pic )
+ {
+ picture_t *p_dst_pic;
+ vout_CopyPicture( p_vout, p_pic, p_src );
+ p_dst_pic = p_sys->p_swscaler->pf_video_filter( p_sys->p_swscaler, p_pic );
+ vout_CopyPicture( p_vout, p_dest, p_dst_pic );
+ p_dst_pic->pf_release( p_dst_pic );
+ }
+ }
+}
+
+/*****************************************************************************
+ * CloseChroma: free the chroma function
+ *****************************************************************************
+ * This function frees the previously allocated chroma function
+ *****************************************************************************/
+void E_(CloseChroma)( vlc_object_t *p_this )
+{
+ vout_thread_t *p_vout = (vout_thread_t *)p_this;
+ chroma_sys_t *p_sys = (chroma_sys_t *)p_vout->chroma.p_sys;
+ if( p_sys->p_swscaler && p_sys->p_swscaler->p_module )
+ {
+ free( p_sys->p_swscaler->p_owner );
+ module_Unneed( p_sys->p_swscaler, p_sys->p_swscaler->p_module );
+ vlc_object_detach( p_sys->p_swscaler );
+ vlc_object_destroy( p_sys->p_swscaler );
+ p_sys->p_swscaler= NULL;
+ }
+ free( p_vout->chroma.p_sys );
+}
+
+#endif /* !defined(HAVE_FFMPEG_SWSCALE_H) && !defined(HAVE_LIBSWSCALE_TREE) */
projects / vlc / blobdiff