]> git.sesse.net Git - vlc/blobdiff - modules/video_filter/postproc.c
Use var_InheritString for --decklink-video-connection.
[vlc] / modules / video_filter / postproc.c
index e05d773beae374eb468cd71ee225b31c829d298f..db758b82c339c0638d7ccf83c064151639e528a1 100644 (file)
@@ -1,7 +1,7 @@
 /*****************************************************************************
  * postproc.c: video postprocessing using libpostproc
  *****************************************************************************
- * Copyright (C) 1999-2008 the VideoLAN team
+ * Copyright (C) 1999-2009 the VideoLAN team
  * $Id$
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
@@ -29,7 +29,8 @@
 
 #include <vlc_common.h>
 #include <vlc_plugin.h>
-#include <vlc_vout.h>
+#include <vlc_filter.h>
+#include <vlc_cpu.h>
 
 #include "filter_picture.h"
 
@@ -63,32 +64,32 @@ static int PPNameCallback( vlc_object_t *, char const *,
     "better looking pictures." )
 
 #define NAME_TEXT N_("FFmpeg post processing filter chains")
-/* defined by libpostproc */
-#define NAME_LONGTEXT pp_help
+#define NAME_LONGTEXT NAME_TEXT
 
 #define FILTER_PREFIX "postproc-"
 
 /*****************************************************************************
  * Module descriptor
  *****************************************************************************/
-vlc_module_begin();
-    set_description( N_("Video post processing filter") );
-    add_shortcut( "postprocess" ); /* name is "postproc" */
-    add_shortcut( "pp" );
-    set_category( CAT_VIDEO );
-    set_subcategory( SUBCAT_VIDEO_VFILTER );
+vlc_module_begin ()
+    set_description( N_("Video post processing filter") )
+    set_shortname( N_("Postproc" ) )
+    add_shortcut( "postprocess", "pp" ) /* name is "postproc" */
+    set_category( CAT_VIDEO )
+    set_subcategory( SUBCAT_VIDEO_VFILTER )
 
-    set_capability( "video filter2", 0 );
+    set_capability( "video filter2", 0 )
 
-    set_callbacks( OpenPostproc, ClosePostproc );
+    set_callbacks( OpenPostproc, ClosePostproc )
 
     add_integer_with_range( FILTER_PREFIX "q", PP_QUALITY_MAX, 0,
-                            PP_QUALITY_MAX, NULL, Q_TEXT, Q_LONGTEXT, false );
-        add_deprecated_alias( "ffmpeg-pp-q" );
+                            PP_QUALITY_MAX, NULL, Q_TEXT, Q_LONGTEXT, false )
+        add_deprecated_alias( "ffmpeg-pp-q" )
+        change_safe()
     add_string( FILTER_PREFIX "name", "default", NULL, NAME_TEXT,
-                NAME_LONGTEXT, true );
-        add_deprecated_alias( "ffmpeg-pp-name" );
-vlc_module_end();
+                NAME_LONGTEXT, true )
+        add_deprecated_alias( "ffmpeg-pp-name" )
+vlc_module_end ()
 
 static const char *const ppsz_filter_options[] = {
     "q", "name", NULL
@@ -99,10 +100,18 @@ static const char *const ppsz_filter_options[] = {
  *****************************************************************************/
 struct filter_sys_t
 {
-    pp_context_t *pp_context; /* Never changes after init */
-    pp_mode_t    *pp_mode; /* Set to NULL if post processing is disabled */
+    /* Never changes after init */
+    pp_context_t *pp_context;
 
-    vlc_mutex_t lock; /* Lock when using or changing pp_mode */
+    /* Set to NULL if post processing is disabled */
+    pp_mode_t    *pp_mode;
+
+    /* Set to true if previous pic had a quant matrix
+       (used to prevent spamming warning messages) */
+    bool b_had_matrix;
+
+    /* Lock when using or changing pp_mode */
+    vlc_mutex_t lock;
 };
 
 
@@ -137,26 +146,28 @@ static int OpenPostproc( vlc_object_t *p_this )
 
     switch( p_filter->fmt_in.video.i_chroma )
     {
-        case VLC_FOURCC('I','4','4','4'):
-        case VLC_FOURCC('J','4','4','4'):
+        case VLC_CODEC_I444:
+        case VLC_CODEC_J444:
+        /* case VLC_CODEC_YUVA:
+           FIXME: Should work but alpha plane needs to be copied manually and
+                  I'm kind of feeling too lazy to write the code to do that ATM
+                  (i_pitch vs i_visible_pitch...). */
             i_flags |= PP_FORMAT_444;
             break;
-        case VLC_FOURCC('I','4','2','2'):
-        case VLC_FOURCC('J','4','2','2'):
+        case VLC_CODEC_I422:
+        case VLC_CODEC_J422:
             i_flags |= PP_FORMAT_422;
             break;
-        case VLC_FOURCC('I','4','1','1'):
+        case VLC_CODEC_I411:
             i_flags |= PP_FORMAT_411;
             break;
-        case VLC_FOURCC('I','4','2','0'):
-        case VLC_FOURCC('I','Y','U','V'):
-        case VLC_FOURCC('J','4','2','0'):
-        case VLC_FOURCC('Y','V','1','2'):
-        /* case VLC_FOURCC('Y','U','V','A'): FIXME Should work but alpha plane needs to be copied manually and I'm kind of feeling too lazy to write the code to do that ATM (i_pitch vs i_visible_pitch...). */
+        case VLC_CODEC_I420:
+        case VLC_CODEC_J420:
+        case VLC_CODEC_YV12:
             i_flags |= PP_FORMAT_420;
             break;
         default:
-            msg_Err( p_filter, "Unsupported input chroma (%4s)",
+            msg_Err( p_filter, "Unsupported input chroma (%4.4s)",
                       (char*)&p_filter->fmt_in.video.i_chroma );
             return VLC_EGENERIC;
     }
@@ -178,23 +189,20 @@ static int OpenPostproc( vlc_object_t *p_this )
     config_ChainParse( p_filter, FILTER_PREFIX, ppsz_filter_options,
                        p_filter->p_cfg );
 
-    var_Create( p_filter, FILTER_PREFIX "q",
-                VLC_VAR_INTEGER | VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT |
-                VLC_VAR_ISCOMMAND );
-    var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_SETISCOMMAND, NULL, NULL ); /* For some obscure reason the VLC_VAR_ISCOMMAND isn't taken into account in during var_Create */
-    var_AddCallback( p_filter, FILTER_PREFIX "q", PPQCallback, NULL );
+    var_Create( p_filter, FILTER_PREFIX "q", VLC_VAR_INTEGER |
+                VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND );
+
     text.psz_string = _("Post processing");
     var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_SETTEXT, &text, NULL );
 
     var_Get( p_filter, FILTER_PREFIX "q", &val_orig );
     var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_DELCHOICE, &val_orig, NULL );
 
-    val.psz_string = var_CreateGetNonEmptyStringCommand(
-                                            p_filter, FILTER_PREFIX "name" );
-    var_AddCallback( p_filter, FILTER_PREFIX "name", PPNameCallback, NULL );
+    val.psz_string = var_GetNonEmptyString( p_filter, FILTER_PREFIX "name" );
     if( val_orig.i_int )
     {
-        p_sys->pp_mode = pp_get_mode_by_name_and_quality( val.psz_string?:
+        p_sys->pp_mode = pp_get_mode_by_name_and_quality( val.psz_string ?
+                                                          val.psz_string :
                                                           "default",
                                                           val_orig.i_int );
 
@@ -202,7 +210,6 @@ static int OpenPostproc( vlc_object_t *p_this )
         {
             msg_Err( p_filter, "Error while creating post processing mode." );
             free( val.psz_string );
-            var_Destroy( p_filter, FILTER_PREFIX "q" );
             pp_free_context( p_sys->pp_context );
             free( p_sys );
             return VLC_EGENERIC;
@@ -237,7 +244,12 @@ static int OpenPostproc( vlc_object_t *p_this )
 
     vlc_mutex_init( &p_sys->lock );
 
+    /* Add the callback at the end to prevent crashes */
+    var_AddCallback( p_filter, FILTER_PREFIX "q", PPQCallback, NULL );
+    var_AddCallback( p_filter, FILTER_PREFIX "name", PPNameCallback, NULL );
+
     p_filter->pf_video_filter = PostprocPict;
+    p_sys->b_had_matrix = true;
 
     return VLC_SUCCESS;
 }
@@ -249,6 +261,12 @@ static void ClosePostproc( vlc_object_t *p_this )
 {
     filter_t *p_filter = (filter_t *)p_this;
     filter_sys_t *p_sys = p_filter->p_sys;
+
+    /* delete the callback before destroying the mutex */
+    var_DelCallback( p_filter, FILTER_PREFIX "q", PPQCallback, NULL );
+    var_DelCallback( p_filter, FILTER_PREFIX "name", PPNameCallback, NULL );
+
+    /* Destroy the resources */
     vlc_mutex_destroy( &p_sys->lock );
     pp_free_context( p_sys->pp_context );
     if( p_sys->pp_mode ) pp_free_mode( p_sys->pp_mode );
@@ -267,21 +285,23 @@ static picture_t *PostprocPict( filter_t *p_filter, picture_t *p_pic )
     int i_plane;
     int i_src_stride[3], i_dst_stride[3];
 
-    vlc_mutex_lock( &p_sys->lock ); /* Lock to prevent issues if pp_mode is changed */
-    if( !p_sys->pp_mode )
-    {
-        vlc_mutex_unlock( &p_sys->lock );
-        return p_pic;
-    }
-
     picture_t *p_outpic = filter_NewPicture( p_filter );
     if( !p_outpic )
     {
         picture_Release( p_pic );
-        vlc_mutex_unlock( &p_sys->lock );
         return NULL;
     }
 
+    /* Lock to prevent issues if pp_mode is changed */
+    vlc_mutex_lock( &p_sys->lock );
+    if( !p_sys->pp_mode )
+    {
+        vlc_mutex_unlock( &p_sys->lock );
+        picture_CopyPixels( p_outpic, p_pic );
+        return CopyInfoAndRelease( p_outpic, p_pic );
+    }
+
+
     for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
     {
         src[i_plane] = p_pic->p[i_plane].p_pixels;
@@ -293,20 +313,29 @@ static picture_t *PostprocPict( filter_t *p_filter, picture_t *p_pic )
         i_dst_stride[i_plane] = p_outpic->p[i_plane].i_pitch;
     }
 
+    if( !p_pic->p_q && p_sys->b_had_matrix )
+    {
+        msg_Warn( p_filter, "Quantification table was not set by video decoder. Postprocessing won't look good." );
+        p_sys->b_had_matrix = false;
+    }
+    else if( p_pic->p_q )
+    {
+        p_sys->b_had_matrix = true;
+    }
+
     pp_postprocess( src, i_src_stride, dst, i_dst_stride,
                     p_filter->fmt_in.video.i_width,
                     p_filter->fmt_in.video.i_height,
-                    NULL /* FIXME ? works by selecting a default table. But maybe setting our own might help improve post processing quality ... */,
-                    0 /* FIXME */,
+                    p_pic->p_q, p_pic->i_qstride,
                     p_sys->pp_mode, p_sys->pp_context,
-                    PP_PICT_TYPE_QP2 /* FIXME ? This should be set only for mpeg2 type codecs if I understand correctly. */ );
+                    p_pic->i_qtype == QTYPE_MPEG2 ? PP_PICT_TYPE_QP2 : 0 );
     vlc_mutex_unlock( &p_sys->lock );
 
     return CopyInfoAndRelease( p_outpic, p_pic );
 }
 
 /*****************************************************************************
- *
+ * PPChangeMode: change the current mode and quality
  *****************************************************************************/
 static void PPChangeMode( filter_t *p_filter, const char *psz_name,
                           int i_quality )
@@ -315,7 +344,8 @@ static void PPChangeMode( filter_t *p_filter, const char *psz_name,
     vlc_mutex_lock( &p_sys->lock );
     if( i_quality > 0 )
     {
-        pp_mode_t *pp_mode = pp_get_mode_by_name_and_quality( psz_name?:
+        pp_mode_t *pp_mode = pp_get_mode_by_name_and_quality( psz_name ?
+                                                              psz_name :
                                                               "default",
                                                               i_quality );
         if( pp_mode )
@@ -354,6 +384,7 @@ static int PPNameCallback( vlc_object_t *p_this, const char *psz_var,
     filter_t *p_filter = (filter_t *)p_this;
 
     int i_quality = var_GetInteger( p_filter, FILTER_PREFIX "q" );
-    PPChangeMode( p_filter, *newval.psz_string?newval.psz_string:NULL, i_quality );
+    PPChangeMode( p_filter, *newval.psz_string ? newval.psz_string : NULL,
+                  i_quality );
     return VLC_SUCCESS;
 }