#define VLC_FOURCC_RGBA VLC_FOURCC('R','G','B','A')
#define VLC_FOURCC_TEXT VLC_FOURCC('T','E','X','T')
+/* TODO export */
+static subpicture_t *subpicture_New( void );
+static void subpicture_Delete( subpicture_t *p_subpic );
+static void SubpictureChain( subpicture_t **pp_head, subpicture_t *p_subpic );
+
+/* */
typedef struct
{
subpicture_t *p_subpicture;
} spu_heap_t;
+static void SpuHeapInit( spu_heap_t * );
+static int SpuHeapPush( spu_heap_t *, subpicture_t * );
+static void SpuHeapDeleteAt( spu_heap_t *, int i_index );
+static int SpuHeapDeleteSubpicture( spu_heap_t *, subpicture_t * );
+static void SpuHeapClean( spu_heap_t *p_heap );
+
struct spu_private_t
{
vlc_mutex_t lock; /* lock to protect all followings fields */
spu_heap_t heap;
int i_channel; /**< number of subpicture channels registered */
- int64_t i_subpicture_order; /**< number of created subpicture since spu creation */
-
filter_t *p_blend; /**< alpha blending module */
filter_t *p_text; /**< text renderer module */
filter_t *p_scale_yuvp; /**< scaling module for YUVP */
video_format_t fmt;
picture_t *p_picture;
};
+static subpicture_region_private_t *SpuRegionPrivateNew( video_format_t * );
+static void SpuRegionPrivateDelete( subpicture_region_private_t * );
+
+/* */
+typedef struct
+{
+ int w;
+ int h;
+} spu_scale_t;
+static spu_scale_t spu_scale_create( int w, int h );
+static spu_scale_t spu_scale_unit(void );
+static spu_scale_t spu_scale_createq( int wn, int wd, int hn, int hd );
+static int spu_scale_w( int v, const spu_scale_t s );
+static int spu_scale_h( int v, const spu_scale_t s );
+static int spu_invscale_w( int v, const spu_scale_t s );
+static int spu_invscale_h( int v, const spu_scale_t s );
+
+typedef struct
+{
+ int i_x;
+ int i_y;
+ int i_width;
+ int i_height;
+
+ spu_scale_t scale;
+} spu_area_t;
+
+static spu_area_t spu_area_create( int x, int y, int w, int h, spu_scale_t );
+static spu_area_t spu_area_scaled( spu_area_t );
+static spu_area_t spu_area_unscaled( spu_area_t, spu_scale_t );
+static bool spu_area_overlap( spu_area_t, spu_area_t );
+
/* Subpicture rendered flag
* FIXME ? it could be moved to private ? */
#define SUBPICTURE_RENDERED (0x1000)
-#ifdef SUBPICTURE_RENDERED < SUBPICTURE_ALIGN_MASK
+#if SUBPICTURE_RENDERED < SUBPICTURE_ALIGN_MASK
# error SUBPICTURE_RENDERED too low
#endif
-static void SpuRegionPrivateDestroy( subpicture_region_private_t *p_private );
+#define SCALE_UNIT (1000)
+
+static int SubpictureCmp( const void *s0, const void *s1 );
+
+static void SpuRenderRegion( spu_t *,
+ picture_t *p_pic_dst, spu_area_t *,
+ subpicture_t *, subpicture_region_t *,
+ const spu_scale_t scale_size,
+ const video_format_t *p_fmt,
+ const spu_area_t *p_subtitle_area, int i_subtitle_area );
static void UpdateSPU ( spu_t *, vlc_object_t * );
static int CropCallback( vlc_object_t *, char const *,
static int SubFilterAllocationInit( filter_t *, void * );
static void SubFilterAllocationClean( filter_t * );
-#define SCALE_UNIT (1000)
-
-/* */
-subpicture_region_t *subpicture_region_New( const video_format_t *p_fmt )
-{
- subpicture_region_t *p_region = calloc( 1, sizeof(*p_region ) );
- if( !p_region )
- return NULL;
-
- p_region->fmt = *p_fmt;
- p_region->fmt.p_palette = NULL;
- if( p_fmt->i_chroma == VLC_FOURCC_YUVP )
- {
- p_region->fmt.p_palette = calloc( 1, sizeof(*p_region->fmt.p_palette) );
- if( p_fmt->p_palette )
- *p_region->fmt.p_palette = *p_fmt->p_palette;
- }
- p_region->i_alpha = 0xff;
- p_region->p_next = NULL;
- p_region->p_private = NULL;
- p_region->psz_text = NULL;
- p_region->p_style = NULL;
- p_region->p_picture = NULL;
-
- if( p_fmt->i_chroma == VLC_FOURCC_TEXT )
- return p_region;
-
- p_region->p_picture = picture_New( p_fmt->i_chroma, p_fmt->i_width, p_fmt->i_height,
- p_fmt->i_aspect );
- if( !p_region->p_picture )
- {
- free( p_fmt->p_palette );
- free( p_region );
- return NULL;
- }
-
- return p_region;
-}
-
-/* */
-void subpicture_region_Delete( subpicture_region_t *p_region )
-{
- if( !p_region )
- return;
-
- if( p_region->p_private )
- SpuRegionPrivateDestroy( p_region->p_private );
-
- if( p_region->p_picture )
- picture_Release( p_region->p_picture );
-
- free( p_region->fmt.p_palette );
-
- free( p_region->psz_text );
- free( p_region->psz_html );
- //free( p_region->p_style ); FIXME --fenrir plugin does not allocate the memory for it. I think it might lead to segfault, video renderer can live longer than the decoder
- free( p_region );
-}
-
-/* */
-void subpicture_region_ChainDelete( subpicture_region_t *p_head )
-{
- while( p_head )
- {
- subpicture_region_t *p_next = p_head->p_next;
-
- subpicture_region_Delete( p_head );
-
- p_head = p_next;
- }
-}
-
-/**
- * This function create a new empty subpicture.
- */
-static subpicture_t *subpicture_New( void )
-{
- subpicture_t *p_subpic = calloc( 1, sizeof(*p_subpic) );
- if( !p_subpic )
- return NULL;
-
- p_subpic->i_order = 0;
- p_subpic->b_absolute = true;
- p_subpic->b_fade = false;
- p_subpic->b_subtitle = false;
- p_subpic->i_alpha = 0xFF;
- p_subpic->p_region = NULL;
- p_subpic->pf_render = NULL;
- p_subpic->pf_destroy = NULL;
- p_subpic->p_sys = NULL;
-
- return p_subpic;
-}
-
-static void subpicture_Delete( subpicture_t *p_subpic )
-{
- subpicture_region_ChainDelete( p_subpic->p_region );
- p_subpic->p_region = NULL;
-
- if( p_subpic->pf_destroy )
- {
- p_subpic->pf_destroy( p_subpic );
- }
- free( p_subpic );
-}
-
-
-static void SpuHeapInit( spu_heap_t *p_heap )
-{
- for( int i = 0; i < VOUT_MAX_SUBPICTURES; i++ )
- {
- spu_heap_entry_t *e = &p_heap->p_entry[i];
-
- e->p_subpicture = NULL;
- e->b_reject = false;
- }
-}
-
-static int SpuHeapPush( spu_heap_t *p_heap, subpicture_t *p_subpic )
-{
- for( int i = 0; i < VOUT_MAX_SUBPICTURES; i++ )
- {
- spu_heap_entry_t *e = &p_heap->p_entry[i];
-
- if( e->p_subpicture )
- continue;
-
- e->p_subpicture = p_subpic;
- e->b_reject = false;
- return VLC_SUCCESS;
- }
- return VLC_EGENERIC;
-}
-
-static void SpuHeapDeleteAt( spu_heap_t *p_heap, int i_index )
-{
- spu_heap_entry_t *e = &p_heap->p_entry[i_index];
-
- if( e->p_subpicture )
- subpicture_Delete( e->p_subpicture );
-
- e->p_subpicture = NULL;
-}
-
-static int SpuHeapDeleteSubpicture( spu_heap_t *p_heap, subpicture_t *p_subpic )
-{
- for( int i = 0; i < VOUT_MAX_SUBPICTURES; i++ )
- {
- spu_heap_entry_t *e = &p_heap->p_entry[i];
-
- if( e->p_subpicture != p_subpic )
- continue;
-
- SpuHeapDeleteAt( p_heap, i );
- return VLC_SUCCESS;
- }
- return VLC_EGENERIC;
-}
-
-static void SpuHeapClean( spu_heap_t *p_heap )
-{
- for( int i = 0; i < VOUT_MAX_SUBPICTURES; i++ )
- {
- spu_heap_entry_t *e = &p_heap->p_entry[i];
- if( e->p_subpicture )
- subpicture_Delete( e->p_subpicture );
- }
-}
-static subpicture_region_private_t *SpuRegionPrivateCreate( video_format_t *p_fmt )
-{
- subpicture_region_private_t *p_private = malloc( sizeof(*p_private) );
-
- if( !p_private )
- return NULL;
-
- p_private->fmt = *p_fmt;
- if( p_fmt->p_palette )
- {
- p_private->fmt.p_palette = malloc( sizeof(*p_private->fmt.p_palette) );
- if( p_private->fmt.p_palette )
- *p_private->fmt.p_palette = *p_fmt->p_palette;
- }
- p_private->p_picture = NULL;
-
- return p_private;
-}
-static void SpuRegionPrivateDestroy( subpicture_region_private_t *p_private )
-{
- if( p_private->p_picture )
- picture_Release( p_private->p_picture );
- free( p_private->fmt.p_palette );
- free( p_private );
-}
-
/* */
-static void SpuRenderCreateAndLoadText( spu_t *p_spu );
-static void SpuRenderCreateAndLoadScale( spu_t *p_spu );
+static void SpuRenderCreateAndLoadText( spu_t * );
+static void SpuRenderCreateAndLoadScale( spu_t * );
+static void SpuRenderCreateBlend( spu_t *, vlc_fourcc_t i_chroma, int i_aspect );
static void FilterRelease( filter_t *p_filter );
+/*****************************************************************************
+ * Public API
+ *****************************************************************************/
/**
* Creates the subpicture unit
*
SpuHeapInit( &p_sys->heap );
- p_sys->i_subpicture_order = 1;
-
p_sys->p_blend = NULL;
p_sys->p_text = NULL;
p_sys->p_scale = NULL;
subpicture_Delete( p_subpic );
}
-static void FilterRelease( filter_t *p_filter )
+/**
+ * This function renders all sub picture units in the list.
+ */
+void spu_RenderSubpictures( spu_t *p_spu,
+ picture_t *p_pic_dst, const video_format_t *p_fmt_dst,
+ subpicture_t *p_subpic_list,
+ const video_format_t *p_fmt_src )
{
- if( p_filter->p_module )
- module_unneed( p_filter, p_filter->p_module );
+ spu_private_t *p_sys = p_spu->p;
- vlc_object_detach( p_filter );
- vlc_object_release( p_filter );
-}
+ const int i_source_video_width = p_fmt_src->i_width;
+ const int i_source_video_height = p_fmt_src->i_height;
+ const mtime_t i_current_date = mdate();
-static void SpuRenderCreateBlend( spu_t *p_spu, vlc_fourcc_t i_chroma, int i_aspect )
-{
- filter_t *p_blend;
+ unsigned int i_subpicture;
+ subpicture_t *pp_subpicture[VOUT_MAX_SUBPICTURES];
- assert( !p_spu->p->p_blend );
+ unsigned int i_subtitle_region_count;
+ spu_area_t p_subtitle_area_buffer[VOUT_MAX_SUBPICTURES];
+ spu_area_t *p_subtitle_area;
+ int i_subtitle_area;
- p_spu->p->p_blend =
- p_blend = vlc_custom_create( p_spu, sizeof(filter_t),
- VLC_OBJECT_GENERIC, "blend" );
- if( !p_blend )
- return;
+ vlc_mutex_lock( &p_sys->lock );
- es_format_Init( &p_blend->fmt_in, VIDEO_ES, 0 );
+ /* Preprocess subpictures */
+ i_subpicture = 0;
+ i_subtitle_region_count = 0;
+ for( subpicture_t * p_subpic = p_subpic_list;
+ p_subpic != NULL;
+ p_subpic = p_subpic->p_next )
+ {
+ /* */
+ if( p_subpic->pf_pre_render )
+ p_subpic->pf_pre_render( p_spu, p_subpic, p_fmt_dst );
- es_format_Init( &p_blend->fmt_out, VIDEO_ES, 0 );
- p_blend->fmt_out.video.i_x_offset = 0;
- p_blend->fmt_out.video.i_y_offset = 0;
- p_blend->fmt_out.video.i_chroma = i_chroma;
- p_blend->fmt_out.video.i_aspect = i_aspect;
+ if( p_subpic->pf_update_regions )
+ {
+ video_format_t fmt_org = *p_fmt_dst;
+ fmt_org.i_width =
+ fmt_org.i_visible_width = i_source_video_width;
+ fmt_org.i_height =
+ fmt_org.i_visible_height = i_source_video_height;
- /* The blend module will be loaded when needed with the real
- * input format */
- p_blend->p_module = NULL;
+ p_subpic->pf_update_regions( p_spu, p_subpic, &fmt_org, i_current_date );
+ }
- /* */
- vlc_object_attach( p_blend, p_spu );
-}
-static void SpuRenderUpdateBlend( spu_t *p_spu, int i_out_width, int i_out_height,
- const video_format_t *p_in_fmt )
-{
- filter_t *p_blend = p_spu->p->p_blend;
+ /* */
+ if( p_subpic->b_subtitle )
+ {
+ for( subpicture_region_t *r = p_subpic->p_region; r != NULL; r = r->p_next )
+ i_subtitle_region_count++;
+ }
- assert( p_blend );
+ /* */
+ pp_subpicture[i_subpicture++] = p_subpic;
+ }
- /* */
- if( p_blend->p_module && p_blend->fmt_in.video.i_chroma != p_in_fmt->i_chroma )
+ /* Be sure we have at least 1 picture to process */
+ if( i_subpicture <= 0 )
{
- /* The chroma is not the same, we need to reload the blend module
- * XXX to match the old behaviour just test !p_blend->fmt_in.video.i_chroma */
- module_unneed( p_blend, p_blend->p_module );
- p_blend->p_module = NULL;
+ vlc_mutex_unlock( &p_sys->lock );
+ return;
}
- /* */
- p_blend->fmt_in.video = *p_in_fmt;
+ /* Now order subpicture array
+ * XXX The order is *really* important for overlap subtitles positionning */
+ qsort( pp_subpicture, i_subpicture, sizeof(*pp_subpicture), SubpictureCmp );
- /* */
- p_blend->fmt_out.video.i_width =
- p_blend->fmt_out.video.i_visible_width = i_out_width;
- p_blend->fmt_out.video.i_height =
- p_blend->fmt_out.video.i_visible_height = i_out_height;
+ /* Allocate area array for subtitle overlap */
+ i_subtitle_area = 0;
+ p_subtitle_area = p_subtitle_area_buffer;
+ if( i_subtitle_region_count > sizeof(p_subtitle_area_buffer)/sizeof(*p_subtitle_area_buffer) )
+ p_subtitle_area = calloc( i_subtitle_region_count, sizeof(*p_subtitle_area) );
- /* */
- if( !p_blend->p_module )
- p_blend->p_module = module_need( p_blend, "video blending", 0, 0 );
-}
-static void SpuRenderCreateAndLoadText( spu_t *p_spu )
-{
- filter_t *p_text;
+ /* Create the blending module */
+ if( !p_sys->p_blend )
+ SpuRenderCreateBlend( p_spu, p_fmt_dst->i_chroma, p_fmt_dst->i_aspect );
- assert( !p_spu->p->p_text );
+ /* Process all subpictures and regions (in the right order) */
+ for( unsigned int i_index = 0; i_index < i_subpicture; i_index++ )
+ {
+ subpicture_t *p_subpic = pp_subpicture[i_index];
+ subpicture_region_t *p_region;
- p_spu->p->p_text =
- p_text = vlc_custom_create( p_spu, sizeof(filter_t),
- VLC_OBJECT_GENERIC, "spu text" );
- if( !p_text )
- return;
+ if( !p_subpic->p_region )
+ continue;
- es_format_Init( &p_text->fmt_in, VIDEO_ES, 0 );
+ /* FIXME when possible use a better rendering size than source size
+ * (max of display size and source size for example) FIXME */
+ int i_render_width = p_subpic->i_original_picture_width;
+ int i_render_height = p_subpic->i_original_picture_height;
+ if( !i_render_width || !i_render_height )
+ {
+ if( i_render_width != 0 || i_render_height != 0 )
+ msg_Err( p_spu, "unsupported original picture size %dx%d",
+ i_render_width, i_render_height );
- es_format_Init( &p_text->fmt_out, VIDEO_ES, 0 );
- p_text->fmt_out.video.i_width =
- p_text->fmt_out.video.i_visible_width = 32;
- p_text->fmt_out.video.i_height =
- p_text->fmt_out.video.i_visible_height = 32;
+ p_subpic->i_original_picture_width = i_render_width = i_source_video_width;
+ p_subpic->i_original_picture_height = i_render_height = i_source_video_height;
+ }
- p_text->pf_sub_buffer_new = spu_new_buffer;
- p_text->pf_sub_buffer_del = spu_del_buffer;
+ if( p_sys->p_text )
+ {
+ p_sys->p_text->fmt_out.video.i_width =
+ p_sys->p_text->fmt_out.video.i_visible_width = i_render_width;
- vlc_object_attach( p_text, p_spu );
+ p_sys->p_text->fmt_out.video.i_height =
+ p_sys->p_text->fmt_out.video.i_visible_height = i_render_height;
+ }
- /* FIXME TOCHECK shouldn't module_need( , , psz_modulename, false ) do the
- * same than these 2 calls ? */
- char *psz_modulename = var_CreateGetString( p_spu, "text-renderer" );
- if( psz_modulename && *psz_modulename )
- {
- p_text->p_module = module_need( p_text, "text renderer",
- psz_modulename, true );
- }
- free( psz_modulename );
+ /* Compute scaling from picture to source size */
+ spu_scale_t scale = spu_scale_createq( i_source_video_width, i_render_width,
+ i_source_video_height, i_render_height );
- if( !p_text->p_module )
- p_text->p_module = module_need( p_text, "text renderer", NULL, false );
+ /* Update scaling from source size to display size(p_fmt_dst) */
+ scale.w = scale.w * p_fmt_dst->i_width / i_source_video_width;
+ scale.h = scale.h * p_fmt_dst->i_height / i_source_video_height;
- /* Create a few variables used for enhanced text rendering */
- var_Create( p_text, "spu-duration", VLC_VAR_TIME );
- var_Create( p_text, "spu-elapsed", VLC_VAR_TIME );
- var_Create( p_text, "text-rerender", VLC_VAR_BOOL );
- var_Create( p_text, "scale", VLC_VAR_INTEGER );
-}
+ /* Set default subpicture aspect ratio
+ * FIXME if we only handle 1 aspect ratio per picture, why is it set per
+ * region ? */
+ p_region = p_subpic->p_region;
+ if( !p_region->fmt.i_sar_num || !p_region->fmt.i_sar_den )
+ {
+ if( p_region->fmt.i_aspect != 0 )
+ {
+ p_region->fmt.i_sar_den = p_region->fmt.i_aspect;
+ p_region->fmt.i_sar_num = VOUT_ASPECT_FACTOR;
+ }
+ else
+ {
+ p_region->fmt.i_sar_den = p_fmt_dst->i_sar_den;
+ p_region->fmt.i_sar_num = p_fmt_dst->i_sar_num;
+ }
+ }
-static filter_t *CreateAndLoadScale( vlc_object_t *p_obj,
- vlc_fourcc_t i_src_chroma, vlc_fourcc_t i_dst_chroma,
- bool b_resize )
-{
- filter_t *p_scale;
+ /* Take care of the aspect ratio */
+ if( p_region->fmt.i_sar_num * p_fmt_dst->i_sar_den !=
+ p_region->fmt.i_sar_den * p_fmt_dst->i_sar_num )
+ {
+ /* FIXME FIXME what about region->i_x/i_y ? */
+ scale.w = scale.w *
+ (int64_t)p_region->fmt.i_sar_num * p_fmt_dst->i_sar_den /
+ p_region->fmt.i_sar_den / p_fmt_dst->i_sar_num;
+ }
- p_scale = vlc_custom_create( p_obj, sizeof(filter_t),
- VLC_OBJECT_GENERIC, "scale" );
- if( !p_scale )
- return NULL;
+ /* Render all regions
+ * We always transform non absolute subtitle into absolute one on the
+ * first rendering to allow good subtitle overlap support.
+ */
+ for( p_region = p_subpic->p_region; p_region != NULL; p_region = p_region->p_next )
+ {
+ spu_area_t area;
- es_format_Init( &p_scale->fmt_in, VIDEO_ES, 0 );
- p_scale->fmt_in.video.i_chroma = i_src_chroma;
- p_scale->fmt_in.video.i_width =
- p_scale->fmt_in.video.i_height = 32;
+ /* Check scale validity */
+ if( scale.w <= 0 || scale.h <= 0 )
+ continue;
- es_format_Init( &p_scale->fmt_out, VIDEO_ES, 0 );
- p_scale->fmt_out.video.i_chroma = i_dst_chroma;
- p_scale->fmt_out.video.i_width =
- p_scale->fmt_out.video.i_height = b_resize ? 16 : 32;
+ /* */
+ SpuRenderRegion( p_spu, p_pic_dst, &area,
+ p_subpic, p_region, scale, p_fmt_dst,
+ p_subtitle_area, i_subtitle_area );
- p_scale->pf_vout_buffer_new = spu_new_video_buffer;
- p_scale->pf_vout_buffer_del = spu_del_video_buffer;
+ if( p_subpic->b_subtitle )
+ {
+ area = spu_area_unscaled( area, scale );
+ if( !p_subpic->b_absolute && area.i_width > 0 && area.i_height > 0 )
+ {
+ p_region->i_x = area.i_x;
+ p_region->i_y = area.i_y;
+ }
+ if( p_subtitle_area )
+ p_subtitle_area[i_subtitle_area++] = area;
+ }
+ }
+ if( p_subpic->b_subtitle )
+ p_subpic->b_absolute = true;
+ }
- vlc_object_attach( p_scale, p_obj );
- p_scale->p_module = module_need( p_scale, "video filter2", 0, 0 );
+ /* */
+ if( p_subtitle_area != p_subtitle_area_buffer )
+ free( p_subtitle_area );
- return p_scale;
-}
-static void SpuRenderCreateAndLoadScale( spu_t *p_spu )
-{
- assert( !p_spu->p->p_scale );
- assert( !p_spu->p->p_scale_yuvp );
- /* XXX p_spu->p_scale is used for all conversion/scaling except yuvp to
- * yuva/rgba */
- p_spu->p->p_scale = CreateAndLoadScale( VLC_OBJECT(p_spu),
- VLC_FOURCC_YUVA, VLC_FOURCC_YUVA, true );
- /* This one is used for YUVP to YUVA/RGBA without scaling
- * FIXME rename it */
- p_spu->p->p_scale_yuvp = CreateAndLoadScale( VLC_OBJECT(p_spu),
- VLC_FOURCC_YUVP, VLC_FOURCC_YUVA, false );
+ vlc_mutex_unlock( &p_sys->lock );
}
-static void SpuRenderText( spu_t *p_spu, bool *pb_rerender_text,
- subpicture_t *p_subpic, subpicture_region_t *p_region,
- int i_min_scale_ratio )
+/*****************************************************************************
+ * spu_SortSubpictures: find the subpictures to display
+ *****************************************************************************
+ * This function parses all subpictures and decides which ones need to be
+ * displayed. If no picture has been selected, display_date will depend on
+ * the subpicture.
+ * We also check for ephemer DVD subpictures (subpictures that have
+ * to be removed if a newer one is available), which makes it a lot
+ * more difficult to guess if a subpicture has to be rendered or not.
+ *****************************************************************************/
+subpicture_t *spu_SortSubpictures( spu_t *p_spu, mtime_t display_date,
+ bool b_paused, bool b_subtitle_only )
{
- filter_t *p_text = p_spu->p->p_text;
+ spu_private_t *p_sys = p_spu->p;
+ int i_channel;
+ subpicture_t *p_subpic = NULL;
- assert( p_region->fmt.i_chroma == VLC_FOURCC_TEXT );
-
- if( !p_text || !p_text->p_module )
- goto exit;
+ /* Run subpicture filters */
+ filter_chain_SubFilter( p_sys->p_chain, display_date );
- /* Setup 3 variables which can be used to render
- * time-dependent text (and effects). The first indicates
- * the total amount of time the text will be on screen,
- * the second the amount of time it has already been on
- * screen (can be a negative value as text is layed out
- * before it is rendered) and the third is a feedback
- * variable from the renderer - if the renderer sets it
- * then this particular text is time-dependent, eg. the
- * visual progress bar inside the text in karaoke and the
- * text needs to be rendered multiple times in order for
- * the effect to work - we therefore need to return the
- * region to its original state at the end of the loop,
- * instead of leaving it in YUVA or YUVP.
- * Any renderer which is unaware of how to render
- * time-dependent text can happily ignore the variables
- * and render the text the same as usual - it should at
- * least show up on screen, but the effect won't change
- * the text over time.
- */
- var_SetTime( p_text, "spu-duration", p_subpic->i_stop - p_subpic->i_start );
- var_SetTime( p_text, "spu-elapsed", mdate() - p_subpic->i_start );
- var_SetBool( p_text, "text-rerender", false );
- var_SetInteger( p_text, "scale", i_min_scale_ratio );
+ vlc_mutex_lock( &p_sys->lock );
- if( p_text->pf_render_html && p_region->psz_html )
- {
- p_text->pf_render_html( p_text, p_region, p_region );
- }
- else if( p_text->pf_render_text )
+ /* We get an easily parsable chained list of subpictures which
+ * ends with NULL since p_subpic was initialized to NULL. */
+ for( i_channel = 0; i_channel < p_sys->i_channel; i_channel++ )
{
- p_text->pf_render_text( p_text, p_region, p_region );
+ subpicture_t *p_ephemer = NULL;
+ mtime_t ephemer_date = 0;
+ int i_index;
+
+ for( i_index = 0; i_index < VOUT_MAX_SUBPICTURES; i_index++ )
+ {
+ spu_heap_entry_t *p_entry = &p_sys->heap.p_entry[i_index];
+ subpicture_t *p_current = p_entry->p_subpicture;
+
+ if( !p_current || p_entry->b_reject )
+ {
+ if( p_entry->b_reject )
+ SpuHeapDeleteAt( &p_sys->heap, i_index );
+ continue;
+ }
+
+ if( p_current->i_channel != i_channel ||
+ ( b_subtitle_only && !p_current->b_subtitle ) )
+ {
+ continue;
+ }
+ if( display_date &&
+ display_date < p_current->i_start )
+ {
+ /* Too early, come back next monday */
+ continue;
+ }
+
+ if( p_current->i_start > ephemer_date )
+ ephemer_date = p_current->i_start;
+
+ if( display_date > p_current->i_stop &&
+ ( !p_current->b_ephemer || p_current->i_stop > p_current->i_start ) &&
+ !( p_current->b_subtitle && b_paused ) ) /* XXX Assume that subtitle are pausable */
+ {
+ SpuHeapDeleteAt( &p_sys->heap, i_index );
+ }
+ else if( p_current->b_ephemer )
+ {
+ SubpictureChain( &p_ephemer, p_current );
+ }
+ else
+ {
+ SubpictureChain( &p_subpic, p_current );
+ }
+ }
+
+ /* If we found ephemer subpictures, check if they have to be
+ * displayed or destroyed */
+ while( p_ephemer != NULL )
+ {
+ subpicture_t *p_tmp = p_ephemer;
+ p_ephemer = p_ephemer->p_next;
+
+ if( p_tmp->i_start < ephemer_date )
+ {
+ SpuHeapDeleteSubpicture( &p_sys->heap, p_tmp );
+ }
+ else
+ {
+ SubpictureChain( &p_subpic, p_tmp );
+ }
+ }
}
- *pb_rerender_text = var_GetBool( p_text, "text-rerender" );
+ vlc_mutex_unlock( &p_sys->lock );
-exit:
- p_region->i_align |= SUBPICTURE_RENDERED;
+ return p_subpic;
}
+/*****************************************************************************
+ * subpicture_t allocation
+ *****************************************************************************/
/**
- * A few scale functions helpers.
+ * This function create a new empty subpicture.
*/
-typedef struct
+static subpicture_t *subpicture_New( void )
{
- int w;
- int h;
-} spu_scale_t;
+ subpicture_t *p_subpic = calloc( 1, sizeof(*p_subpic) );
+ if( !p_subpic )
+ return NULL;
-static spu_scale_t spu_scale_create( int w, int h )
-{
- spu_scale_t s = { .w = w, .h = h };
- if( s.w <= 0 )
- s.w = SCALE_UNIT;
- if( s.h <= 0 )
- s.h = SCALE_UNIT;
- return s;
-}
-static spu_scale_t spu_scale_unit(void )
-{
- return spu_scale_create( SCALE_UNIT, SCALE_UNIT );
-}
-static spu_scale_t spu_scale_createq( int wn, int wd, int hn, int hd )
-{
- return spu_scale_create( wn * SCALE_UNIT / wd,
- hn * SCALE_UNIT / hd );
-}
-static int spu_scale_w( int v, const spu_scale_t s )
-{
- return v * s.w / SCALE_UNIT;
+ p_subpic->i_order = 0;
+ p_subpic->b_absolute = true;
+ p_subpic->b_fade = false;
+ p_subpic->b_subtitle = false;
+ p_subpic->i_alpha = 0xFF;
+ p_subpic->p_region = NULL;
+ p_subpic->pf_render = NULL;
+ p_subpic->pf_destroy = NULL;
+ p_subpic->p_sys = NULL;
+
+ return p_subpic;
}
-static int spu_scale_h( int v, const spu_scale_t s )
+
+static void subpicture_Delete( subpicture_t *p_subpic )
{
- return v * s.h / SCALE_UNIT;
+ subpicture_region_ChainDelete( p_subpic->p_region );
+ p_subpic->p_region = NULL;
+
+ if( p_subpic->pf_destroy )
+ {
+ p_subpic->pf_destroy( p_subpic );
+ }
+ free( p_subpic );
}
-static int spu_invscale_w( int v, const spu_scale_t s )
+
+static void SubpictureChain( subpicture_t **pp_head, subpicture_t *p_subpic )
{
- return v * SCALE_UNIT / s.w;
+ p_subpic->p_next = *pp_head;
+
+ *pp_head = p_subpic;
}
-static int spu_invscale_h( int v, const spu_scale_t s )
+
+/*****************************************************************************
+ * subpicture_region_t allocation
+ *****************************************************************************/
+subpicture_region_t *subpicture_region_New( const video_format_t *p_fmt )
{
- return v * SCALE_UNIT / s.h;
-}
+ subpicture_region_t *p_region = calloc( 1, sizeof(*p_region ) );
+ if( !p_region )
+ return NULL;
-/**
- * A few area functions helpers
- */
+ p_region->fmt = *p_fmt;
+ p_region->fmt.p_palette = NULL;
+ if( p_fmt->i_chroma == VLC_FOURCC_YUVP )
+ {
+ p_region->fmt.p_palette = calloc( 1, sizeof(*p_region->fmt.p_palette) );
+ if( p_fmt->p_palette )
+ *p_region->fmt.p_palette = *p_fmt->p_palette;
+ }
+ p_region->i_alpha = 0xff;
+ p_region->p_next = NULL;
+ p_region->p_private = NULL;
+ p_region->psz_text = NULL;
+ p_region->p_style = NULL;
+ p_region->p_picture = NULL;
-typedef struct
-{
- int i_x;
- int i_y;
- int i_width;
- int i_height;
+ if( p_fmt->i_chroma == VLC_FOURCC_TEXT )
+ return p_region;
- spu_scale_t scale;
-} spu_area_t;
+ p_region->p_picture = picture_New( p_fmt->i_chroma, p_fmt->i_width, p_fmt->i_height,
+ p_fmt->i_aspect );
+ if( !p_region->p_picture )
+ {
+ free( p_fmt->p_palette );
+ free( p_region );
+ return NULL;
+ }
-static spu_area_t spu_area_create( int x, int y, int w, int h, spu_scale_t s )
-{
- spu_area_t a = { .i_x = x, .i_y = y, .i_width = w, .i_height = h, .scale = s };
- return a;
+ return p_region;
}
-static spu_area_t spu_area_scaled( spu_area_t a )
+
+/* */
+void subpicture_region_Delete( subpicture_region_t *p_region )
{
- if( a.scale.w == SCALE_UNIT && a.scale.h == SCALE_UNIT )
- return a;
+ if( !p_region )
+ return;
- a.i_x = spu_scale_w( a.i_x, a.scale );
- a.i_y = spu_scale_h( a.i_y, a.scale );
+ if( p_region->p_private )
+ SpuRegionPrivateDelete( p_region->p_private );
- a.i_width = spu_scale_w( a.i_width, a.scale );
- a.i_height = spu_scale_h( a.i_height, a.scale );
+ if( p_region->p_picture )
+ picture_Release( p_region->p_picture );
- a.scale = spu_scale_unit();
- return a;
+ free( p_region->fmt.p_palette );
+
+ free( p_region->psz_text );
+ free( p_region->psz_html );
+ //free( p_region->p_style ); FIXME --fenrir plugin does not allocate the memory for it. I think it might lead to segfault, video renderer can live longer than the decoder
+ free( p_region );
}
-static spu_area_t spu_area_unscaled( spu_area_t a, spu_scale_t s )
-{
- if( a.scale.w == s.w && a.scale.h == s.h )
- return a;
- a = spu_area_scaled( a );
+/* */
+void subpicture_region_ChainDelete( subpicture_region_t *p_head )
+{
+ while( p_head )
+ {
+ subpicture_region_t *p_next = p_head->p_next;
- a.i_x = spu_invscale_w( a.i_x, s );
- a.i_y = spu_invscale_h( a.i_y, s );
+ subpicture_region_Delete( p_head );
- a.i_width = spu_invscale_w( a.i_width, s );
- a.i_height = spu_invscale_h( a.i_height, s );
-
- a.scale = s;
- return a;
+ p_head = p_next;
+ }
}
-static bool spu_area_overlap( spu_area_t a, spu_area_t b )
-{
- const int i_dx = 0;
- const int i_dy = 0;
- a = spu_area_scaled( a );
- b = spu_area_scaled( b );
- return __MAX( a.i_x-i_dx, b.i_x ) < __MIN( a.i_x+a.i_width +i_dx, b.i_x+b.i_width ) &&
- __MAX( a.i_y-i_dy, b.i_y ) < __MIN( a.i_y+a.i_height+i_dy, b.i_y+b.i_height );
-}
-/**
- * Avoid area overlapping
- */
-static void SpuAreaFixOverlap( spu_area_t *p_dst,
- const spu_area_t *p_master,
- const spu_area_t *p_sub, int i_sub, int i_align )
+/*****************************************************************************
+ * heap managment
+ *****************************************************************************/
+static void SpuHeapInit( spu_heap_t *p_heap )
{
- spu_area_t a = spu_area_scaled( *p_dst );
- bool b_moved = false;
- bool b_ok;
+ for( int i = 0; i < VOUT_MAX_SUBPICTURES; i++ )
+ {
+ spu_heap_entry_t *e = &p_heap->p_entry[i];
- assert( p_master->i_x == 0 && p_master->i_y == 0 );
+ e->p_subpicture = NULL;
+ e->b_reject = false;
+ }
+}
- /* Check for overlap
- * XXX It is not fast O(n^2) but we should not have a lot of region */
- do
+static int SpuHeapPush( spu_heap_t *p_heap, subpicture_t *p_subpic )
+{
+ for( int i = 0; i < VOUT_MAX_SUBPICTURES; i++ )
{
- b_ok = true;
- for( int i = 0; i < i_sub; i++ )
- {
- spu_area_t sub = spu_area_scaled( p_sub[i] );
+ spu_heap_entry_t *e = &p_heap->p_entry[i];
- if( !spu_area_overlap( a, sub ) )
- continue;
+ if( e->p_subpicture )
+ continue;
- if( i_align & SUBPICTURE_ALIGN_TOP )
- {
- /* We go down */
- int i_y = sub.i_y + sub.i_height;
- if( i_y + a.i_height > p_master->i_height )
- break;
- a.i_y = i_y;
- b_moved = true;
- }
- else if( i_align & SUBPICTURE_ALIGN_BOTTOM )
- {
- /* We go up */
- int i_y = sub.i_y - a.i_height;
- if( i_y < 0 )
- break;
- a.i_y = i_y;
- b_moved = true;
- }
- else
- {
- /* TODO what to do in this case? */
- //fprintf( stderr, "Overlap with unsupported alignment\n" );
- break;
- }
+ e->p_subpicture = p_subpic;
+ e->b_reject = false;
+ return VLC_SUCCESS;
+ }
+ return VLC_EGENERIC;
+}
- b_ok = false;
- break;
- }
- } while( !b_ok );
+static void SpuHeapDeleteAt( spu_heap_t *p_heap, int i_index )
+{
+ spu_heap_entry_t *e = &p_heap->p_entry[i_index];
- if( b_moved )
- *p_dst = spu_area_unscaled( a, p_dst->scale );
-}
+ if( e->p_subpicture )
+ subpicture_Delete( e->p_subpicture );
+ e->p_subpicture = NULL;
+}
-/**
- * Place a region
- */
-static void SpuRegionPlace( int *pi_x, int *pi_y,
- const subpicture_t *p_subpic,
- const subpicture_region_t *p_region,
- int i_margin_y )
+static int SpuHeapDeleteSubpicture( spu_heap_t *p_heap, subpicture_t *p_subpic )
{
- const int i_delta_x = p_region->i_x;
- const int i_delta_y = p_region->i_y;
- int i_x, i_y;
-
- assert( p_region->i_x != INT_MAX && p_region->i_y != INT_MAX );
- if( p_region->i_align & SUBPICTURE_ALIGN_TOP )
- {
- i_y = i_delta_y;
- }
- else if( p_region->i_align & SUBPICTURE_ALIGN_BOTTOM )
- {
- i_y = p_subpic->i_original_picture_height - p_region->fmt.i_height - i_delta_y;
- }
- else
+ for( int i = 0; i < VOUT_MAX_SUBPICTURES; i++ )
{
- i_y = p_subpic->i_original_picture_height / 2 - p_region->fmt.i_height / 2;
- }
+ spu_heap_entry_t *e = &p_heap->p_entry[i];
- if( p_region->i_align & SUBPICTURE_ALIGN_LEFT )
- {
- i_x = i_delta_x;
- }
- else if( p_region->i_align & SUBPICTURE_ALIGN_RIGHT )
- {
- i_x = p_subpic->i_original_picture_width - p_region->fmt.i_width - i_delta_x;
- }
- else
- {
- i_x = p_subpic->i_original_picture_width / 2 - p_region->fmt.i_width / 2;
+ if( e->p_subpicture != p_subpic )
+ continue;
+
+ SpuHeapDeleteAt( p_heap, i );
+ return VLC_SUCCESS;
}
+ return VLC_EGENERIC;
+}
- if( p_subpic->b_absolute )
+static void SpuHeapClean( spu_heap_t *p_heap )
+{
+ for( int i = 0; i < VOUT_MAX_SUBPICTURES; i++ )
{
- i_x = i_delta_x;
- i_y = i_delta_y;
+ spu_heap_entry_t *e = &p_heap->p_entry[i];
+ if( e->p_subpicture )
+ subpicture_Delete( e->p_subpicture );
}
+}
- /* Margin shifts all subpictures */
- if( i_margin_y != 0 )
- i_y -= i_margin_y;
+static subpicture_region_private_t *SpuRegionPrivateNew( video_format_t *p_fmt )
+{
+ subpicture_region_private_t *p_private = malloc( sizeof(*p_private) );
- /* Clamp offset to not go out of the screen (when possible) */
- const int i_error_x = (i_x + p_region->fmt.i_width) - p_subpic->i_original_picture_width;
- if( i_error_x > 0 )
- i_x -= i_error_x;
- if( i_x < 0 )
- i_x = 0;
+ if( !p_private )
+ return NULL;
- const int i_error_y = (i_y + p_region->fmt.i_height) - p_subpic->i_original_picture_height;
- if( i_error_y > 0 )
- i_y -= i_error_y;
- if( i_y < 0 )
- i_y = 0;
+ p_private->fmt = *p_fmt;
+ if( p_fmt->p_palette )
+ {
+ p_private->fmt.p_palette = malloc( sizeof(*p_private->fmt.p_palette) );
+ if( p_private->fmt.p_palette )
+ *p_private->fmt.p_palette = *p_fmt->p_palette;
+ }
+ p_private->p_picture = NULL;
- *pi_x = i_x;
- *pi_y = i_y;
+ return p_private;
+}
+static void SpuRegionPrivateDelete( subpicture_region_private_t *p_private )
+{
+ if( p_private->p_picture )
+ picture_Release( p_private->p_picture );
+ free( p_private->fmt.p_palette );
+ free( p_private );
}
-/**
- * This function computes the current alpha value for a given region.
- */
-static int SpuRegionAlpha( subpicture_t *p_subpic, subpicture_region_t *p_region )
+static void FilterRelease( filter_t *p_filter )
{
- /* Compute alpha blend value */
- int i_fade_alpha = 255;
- if( p_subpic->b_fade )
- {
- mtime_t i_fade_start = ( p_subpic->i_stop +
- p_subpic->i_start ) / 2;
- mtime_t i_now = mdate();
+ if( p_filter->p_module )
+ module_unneed( p_filter, p_filter->p_module );
- if( i_now >= i_fade_start && p_subpic->i_stop > i_fade_start )
- {
- i_fade_alpha = 255 * ( p_subpic->i_stop - i_now ) /
- ( p_subpic->i_stop - i_fade_start );
- }
- }
- return i_fade_alpha * p_subpic->i_alpha * p_region->i_alpha / 65025;
+ vlc_object_detach( p_filter );
+ vlc_object_release( p_filter );
}
-/**
- * It will render the provided region onto p_pic_dst.
- */
-
-static void SpuRenderRegion( spu_t *p_spu,
- picture_t *p_pic_dst, spu_area_t *p_area,
- subpicture_t *p_subpic, subpicture_region_t *p_region,
- const spu_scale_t scale_size,
- const video_format_t *p_fmt,
- const spu_area_t *p_subtitle_area, int i_subtitle_area )
+static void SpuRenderCreateBlend( spu_t *p_spu, vlc_fourcc_t i_chroma, int i_aspect )
{
- spu_private_t *p_sys = p_spu->p;
+ filter_t *p_blend;
- video_format_t fmt_original = p_region->fmt;
- bool b_rerender_text = false;
- bool b_restore_format = false;
- int i_x_offset;
- int i_y_offset;
+ assert( !p_spu->p->p_blend );
- video_format_t region_fmt;
- picture_t *p_region_picture;
+ p_spu->p->p_blend =
+ p_blend = vlc_custom_create( p_spu, sizeof(filter_t),
+ VLC_OBJECT_GENERIC, "blend" );
+ if( !p_blend )
+ return;
- /* Invalidate area by default */
- *p_area = spu_area_create( 0,0, 0,0, scale_size );
+ es_format_Init( &p_blend->fmt_in, VIDEO_ES, 0 );
- /* Render text region */
- if( p_region->fmt.i_chroma == VLC_FOURCC_TEXT )
- {
- const int i_min_scale_ratio = SCALE_UNIT; /* FIXME what is the right value? (scale_size is not) */
- SpuRenderText( p_spu, &b_rerender_text, p_subpic, p_region, i_min_scale_ratio );
- b_restore_format = b_rerender_text;
+ es_format_Init( &p_blend->fmt_out, VIDEO_ES, 0 );
+ p_blend->fmt_out.video.i_x_offset = 0;
+ p_blend->fmt_out.video.i_y_offset = 0;
+ p_blend->fmt_out.video.i_chroma = i_chroma;
+ p_blend->fmt_out.video.i_aspect = i_aspect;
- /* Check if the rendering has failed ... */
- if( p_region->fmt.i_chroma == VLC_FOURCC_TEXT )
- goto exit;
- }
+ /* The blend module will be loaded when needed with the real
+ * input format */
+ p_blend->p_module = NULL;
- /* Force palette if requested
- * FIXME b_force_palette and b_force_crop are applied to all subpictures using palette
- * instead of only the right one (being the dvd spu).
- */
- const bool b_using_palette = p_region->fmt.i_chroma == VLC_FOURCC_YUVP;
- const bool b_force_palette = b_using_palette && p_sys->b_force_palette;
- const bool b_force_crop = b_force_palette && p_sys->b_force_crop;
- bool b_changed_palette = false;
-
-
- /* Compute the margin which is expressed in destination pixel unit
- * The margin is applied only to subtitle and when no forced crop is
- * requested (dvd menu) */
- int i_margin_y = 0;
- if( !b_force_crop && p_subpic->b_subtitle )
- i_margin_y = spu_invscale_h( p_sys->i_margin, scale_size );
-
- /* Place the picture
- * We compute the position in the rendered size */
- SpuRegionPlace( &i_x_offset, &i_y_offset,
- p_subpic, p_region, i_margin_y );
+ /* */
+ vlc_object_attach( p_blend, p_spu );
+}
+static void SpuRenderUpdateBlend( spu_t *p_spu, int i_out_width, int i_out_height,
+ const video_format_t *p_in_fmt )
+{
+ filter_t *p_blend = p_spu->p->p_blend;
- /* Save this position for subtitle overlap support
- * it is really important that there are given without scale_size applied */
- *p_area = spu_area_create( i_x_offset, i_y_offset,
- p_region->fmt.i_width, p_region->fmt.i_height,
- scale_size );
+ assert( p_blend );
- /* Handle overlapping subtitles when possible */
- if( p_subpic->b_subtitle && !p_subpic->b_absolute )
+ /* */
+ if( p_blend->p_module && p_blend->fmt_in.video.i_chroma != p_in_fmt->i_chroma )
{
- spu_area_t display = spu_area_create( 0, 0, p_fmt->i_width, p_fmt->i_height,
- spu_scale_unit() );
-
- SpuAreaFixOverlap( p_area, &display, p_subtitle_area, i_subtitle_area,
- p_region->i_align );
+ /* The chroma is not the same, we need to reload the blend module
+ * XXX to match the old behaviour just test !p_blend->fmt_in.video.i_chroma */
+ module_unneed( p_blend, p_blend->p_module );
+ p_blend->p_module = NULL;
}
- /* Fix the position for the current scale_size */
- i_x_offset = spu_scale_w( p_area->i_x, p_area->scale );
- i_y_offset = spu_scale_h( p_area->i_y, p_area->scale );
-
/* */
- if( b_force_palette )
- {
- video_palette_t *p_palette = p_region->fmt.p_palette;
- video_palette_t palette;
-
- /* We suppose DVD palette here */
- palette.i_entries = 4;
- for( int i = 0; i < 4; i++ )
- for( int j = 0; j < 4; j++ )
- palette.palette[i][j] = p_sys->palette[i][j];
+ p_blend->fmt_in.video = *p_in_fmt;
- if( p_palette->i_entries == palette.i_entries )
- {
- for( int i = 0; i < p_palette->i_entries; i++ )
- for( int j = 0; j < 4; j++ )
- b_changed_palette |= p_palette->palette[i][j] != palette.palette[i][j];
- }
- else
- {
- b_changed_palette = true;
- }
- *p_palette = palette;
- }
+ /* */
+ p_blend->fmt_out.video.i_width =
+ p_blend->fmt_out.video.i_visible_width = i_out_width;
+ p_blend->fmt_out.video.i_height =
+ p_blend->fmt_out.video.i_visible_height = i_out_height;
/* */
- region_fmt = p_region->fmt;
- p_region_picture = p_region->p_picture;
+ if( !p_blend->p_module )
+ p_blend->p_module = module_need( p_blend, "video blending", 0, 0 );
+}
+static void SpuRenderCreateAndLoadText( spu_t *p_spu )
+{
+ filter_t *p_text;
+ assert( !p_spu->p->p_text );
- /* Scale from rendered size to destination size */
- if( p_sys->p_scale && p_sys->p_scale->p_module &&
- ( !b_using_palette || ( p_sys->p_scale_yuvp && p_sys->p_scale_yuvp->p_module ) ) &&
- ( scale_size.w != SCALE_UNIT || scale_size.h != SCALE_UNIT || b_using_palette ) )
- {
- const unsigned i_dst_width = spu_scale_w( p_region->fmt.i_width, scale_size );
- const unsigned i_dst_height = spu_scale_h( p_region->fmt.i_height, scale_size );
+ p_spu->p->p_text =
+ p_text = vlc_custom_create( p_spu, sizeof(filter_t),
+ VLC_OBJECT_GENERIC, "spu text" );
+ if( !p_text )
+ return;
- /* Destroy the cache if unusable */
- if( p_region->p_private )
- {
- subpicture_region_private_t *p_private = p_region->p_private;
- bool b_changed = false;
+ es_format_Init( &p_text->fmt_in, VIDEO_ES, 0 );
- /* Check resize changes */
- if( i_dst_width != p_private->fmt.i_width ||
- i_dst_height != p_private->fmt.i_height )
- b_changed = true;
+ es_format_Init( &p_text->fmt_out, VIDEO_ES, 0 );
+ p_text->fmt_out.video.i_width =
+ p_text->fmt_out.video.i_visible_width = 32;
+ p_text->fmt_out.video.i_height =
+ p_text->fmt_out.video.i_visible_height = 32;
- /* Check forced palette changes */
- if( b_changed_palette )
- b_changed = true;
+ p_text->pf_sub_buffer_new = spu_new_buffer;
+ p_text->pf_sub_buffer_del = spu_del_buffer;
- if( b_changed )
- {
- SpuRegionPrivateDestroy( p_private );
- p_region->p_private = NULL;
- }
- }
+ vlc_object_attach( p_text, p_spu );
- /* Scale if needed into cache */
- if( !p_region->p_private )
- {
- filter_t *p_scale = p_sys->p_scale;
+ /* FIXME TOCHECK shouldn't module_need( , , psz_modulename, false ) do the
+ * same than these 2 calls ? */
+ char *psz_modulename = var_CreateGetString( p_spu, "text-renderer" );
+ if( psz_modulename && *psz_modulename )
+ {
+ p_text->p_module = module_need( p_text, "text renderer",
+ psz_modulename, true );
+ }
+ free( psz_modulename );
- picture_t *p_picture = p_region->p_picture;
- picture_Hold( p_picture );
+ if( !p_text->p_module )
+ p_text->p_module = module_need( p_text, "text renderer", NULL, false );
- /* Convert YUVP to YUVA/RGBA first for better scaling quality */
- if( b_using_palette )
- {
- filter_t *p_scale_yuvp = p_sys->p_scale_yuvp;
+ /* Create a few variables used for enhanced text rendering */
+ var_Create( p_text, "spu-duration", VLC_VAR_TIME );
+ var_Create( p_text, "spu-elapsed", VLC_VAR_TIME );
+ var_Create( p_text, "text-rerender", VLC_VAR_BOOL );
+ var_Create( p_text, "scale", VLC_VAR_INTEGER );
+}
- p_scale_yuvp->fmt_in.video = p_region->fmt;
+static filter_t *CreateAndLoadScale( vlc_object_t *p_obj,
+ vlc_fourcc_t i_src_chroma, vlc_fourcc_t i_dst_chroma,
+ bool b_resize )
+{
+ filter_t *p_scale;
- /* TODO converting to RGBA for RGB video output is better */
- p_scale_yuvp->fmt_out.video = p_region->fmt;
- p_scale_yuvp->fmt_out.video.i_chroma = VLC_FOURCC_YUVA;
+ p_scale = vlc_custom_create( p_obj, sizeof(filter_t),
+ VLC_OBJECT_GENERIC, "scale" );
+ if( !p_scale )
+ return NULL;
- p_picture = p_scale_yuvp->pf_video_filter( p_scale_yuvp, p_picture );
- if( !p_picture )
- {
- /* Well we will try conversion+scaling */
- msg_Warn( p_spu, "%4.4s to %4.4s conversion failed",
- (const char*)&p_scale_yuvp->fmt_in.video.i_chroma,
- (const char*)&p_scale_yuvp->fmt_out.video.i_chroma );
- }
- }
+ es_format_Init( &p_scale->fmt_in, VIDEO_ES, 0 );
+ p_scale->fmt_in.video.i_chroma = i_src_chroma;
+ p_scale->fmt_in.video.i_width =
+ p_scale->fmt_in.video.i_height = 32;
- /* Conversion(except from YUVP)/Scaling */
- if( p_picture &&
- ( p_picture->format.i_width != i_dst_width ||
- p_picture->format.i_height != i_dst_height ) )
- {
- p_scale->fmt_in.video = p_picture->format;
- p_scale->fmt_out.video = p_picture->format;
+ es_format_Init( &p_scale->fmt_out, VIDEO_ES, 0 );
+ p_scale->fmt_out.video.i_chroma = i_dst_chroma;
+ p_scale->fmt_out.video.i_width =
+ p_scale->fmt_out.video.i_height = b_resize ? 16 : 32;
- p_scale->fmt_out.video.i_width = i_dst_width;
- p_scale->fmt_out.video.i_height = i_dst_height;
+ p_scale->pf_vout_buffer_new = spu_new_video_buffer;
+ p_scale->pf_vout_buffer_del = spu_del_video_buffer;
- p_scale->fmt_out.video.i_visible_width =
- spu_scale_w( p_region->fmt.i_visible_width, scale_size );
- p_scale->fmt_out.video.i_visible_height =
- spu_scale_h( p_region->fmt.i_visible_height, scale_size );
+ vlc_object_attach( p_scale, p_obj );
+ p_scale->p_module = module_need( p_scale, "video filter2", 0, 0 );
- p_picture = p_scale->pf_video_filter( p_scale, p_picture );
- if( !p_picture )
- msg_Err( p_spu, "scaling failed" );
- }
+ return p_scale;
+}
+static void SpuRenderCreateAndLoadScale( spu_t *p_spu )
+{
+ assert( !p_spu->p->p_scale );
+ assert( !p_spu->p->p_scale_yuvp );
+ /* XXX p_spu->p_scale is used for all conversion/scaling except yuvp to
+ * yuva/rgba */
+ p_spu->p->p_scale = CreateAndLoadScale( VLC_OBJECT(p_spu),
+ VLC_FOURCC_YUVA, VLC_FOURCC_YUVA, true );
+ /* This one is used for YUVP to YUVA/RGBA without scaling
+ * FIXME rename it */
+ p_spu->p->p_scale_yuvp = CreateAndLoadScale( VLC_OBJECT(p_spu),
+ VLC_FOURCC_YUVP, VLC_FOURCC_YUVA, false );
+}
- /* */
- if( p_picture )
- {
- p_region->p_private = SpuRegionPrivateCreate( &p_picture->format );
- if( p_region->p_private )
- {
- p_region->p_private->p_picture = p_picture;
- if( !p_region->p_private->p_picture )
- {
- SpuRegionPrivateDestroy( p_region->p_private );
- p_region->p_private = NULL;
- }
- }
- else
- {
- picture_Release( p_picture );
- }
- }
- }
+static void SpuRenderText( spu_t *p_spu, bool *pb_rerender_text,
+ subpicture_t *p_subpic, subpicture_region_t *p_region,
+ int i_min_scale_ratio )
+{
+ filter_t *p_text = p_spu->p->p_text;
- /* And use the scaled picture */
- if( p_region->p_private )
- {
- region_fmt = p_region->p_private->fmt;
- p_region_picture = p_region->p_private->p_picture;
- }
- }
+ assert( p_region->fmt.i_chroma == VLC_FOURCC_TEXT );
- /* Force cropping if requested */
- if( b_force_crop )
- {
- int i_crop_x = spu_scale_w( p_sys->i_crop_x, scale_size );
- int i_crop_y = spu_scale_h( p_sys->i_crop_y, scale_size );
- int i_crop_width = spu_scale_w( p_sys->i_crop_width, scale_size );
- int i_crop_height= spu_scale_h( p_sys->i_crop_height,scale_size );
+ if( !p_text || !p_text->p_module )
+ goto exit;
- /* Find the intersection */
- if( i_crop_x + i_crop_width <= i_x_offset ||
- i_x_offset + (int)region_fmt.i_visible_width < i_crop_x ||
- i_crop_y + i_crop_height <= i_y_offset ||
- i_y_offset + (int)region_fmt.i_visible_height < i_crop_y )
- {
- /* No intersection */
- region_fmt.i_visible_width =
- region_fmt.i_visible_height = 0;
- }
- else
- {
- int i_x, i_y, i_x_end, i_y_end;
- i_x = __MAX( i_crop_x, i_x_offset );
- i_y = __MAX( i_crop_y, i_y_offset );
- i_x_end = __MIN( i_crop_x + i_crop_width,
- i_x_offset + (int)region_fmt.i_visible_width );
- i_y_end = __MIN( i_crop_y + i_crop_height,
- i_y_offset + (int)region_fmt.i_visible_height );
-
- region_fmt.i_x_offset = i_x - i_x_offset;
- region_fmt.i_y_offset = i_y - i_y_offset;
- region_fmt.i_visible_width = i_x_end - i_x;
- region_fmt.i_visible_height = i_y_end - i_y;
-
- i_x_offset = __MAX( i_x, 0 );
- i_y_offset = __MAX( i_y, 0 );
- }
- }
-
- /* Update the blender */
- SpuRenderUpdateBlend( p_spu, p_fmt->i_width, p_fmt->i_height, ®ion_fmt );
+ /* Setup 3 variables which can be used to render
+ * time-dependent text (and effects). The first indicates
+ * the total amount of time the text will be on screen,
+ * the second the amount of time it has already been on
+ * screen (can be a negative value as text is layed out
+ * before it is rendered) and the third is a feedback
+ * variable from the renderer - if the renderer sets it
+ * then this particular text is time-dependent, eg. the
+ * visual progress bar inside the text in karaoke and the
+ * text needs to be rendered multiple times in order for
+ * the effect to work - we therefore need to return the
+ * region to its original state at the end of the loop,
+ * instead of leaving it in YUVA or YUVP.
+ * Any renderer which is unaware of how to render
+ * time-dependent text can happily ignore the variables
+ * and render the text the same as usual - it should at
+ * least show up on screen, but the effect won't change
+ * the text over time.
+ */
+ var_SetTime( p_text, "spu-duration", p_subpic->i_stop - p_subpic->i_start );
+ var_SetTime( p_text, "spu-elapsed", mdate() - p_subpic->i_start );
+ var_SetBool( p_text, "text-rerender", false );
+ var_SetInteger( p_text, "scale", i_min_scale_ratio );
- if( p_sys->p_blend->p_module )
+ if( p_text->pf_render_html && p_region->psz_html )
{
- const int i_alpha = SpuRegionAlpha( p_subpic, p_region );
-
- p_sys->p_blend->pf_video_blend( p_sys->p_blend, p_pic_dst,
- p_region_picture, i_x_offset, i_y_offset, i_alpha );
+ p_text->pf_render_html( p_text, p_region, p_region );
}
- else
+ else if( p_text->pf_render_text )
{
- msg_Err( p_spu, "blending %4.4s to %4.4s failed",
- (char *)&p_sys->p_blend->fmt_out.video.i_chroma,
- (char *)&p_sys->p_blend->fmt_out.video.i_chroma );
+ p_text->pf_render_text( p_text, p_region, p_region );
}
+ *pb_rerender_text = var_GetBool( p_text, "text-rerender" );
exit:
- if( b_rerender_text )
- {
- /* Some forms of subtitles need to be re-rendered more than
- * once, eg. karaoke. We therefore restore the region to its
- * pre-rendered state, so the next time through everything is
- * calculated again.
- */
- picture_Release( p_region->p_picture );
- p_region->p_picture = NULL;
- if( p_region->p_private )
- {
- SpuRegionPrivateDestroy( p_region->p_private );
- p_region->p_private = NULL;
- }
- p_region->i_align &= ~SUBPICTURE_RENDERED;
- }
- if( b_restore_format )
- p_region->fmt = fmt_original;
+ p_region->i_align |= SUBPICTURE_RENDERED;
}
/**
- * This function compares two 64 bits integers.
- * It can be used by qsort.
+ * A few scale functions helpers.
*/
-static int IntegerCmp( int64_t i0, int64_t i1 )
+static spu_scale_t spu_scale_create( int w, int h )
{
- return i0 < i1 ? -1 : i0 > i1 ? 1 : 0;
+ spu_scale_t s = { .w = w, .h = h };
+ if( s.w <= 0 )
+ s.w = SCALE_UNIT;
+ if( s.h <= 0 )
+ s.h = SCALE_UNIT;
+ return s;
}
-/**
- * This function compares 2 subpictures using the following properties
- * (ordered by priority)
- * 1. absolute positionning
- * 2. start time
- * 3. creation order
- *
- * It can be used by qsort.
- *
- * XXX spu_RenderSubpictures depends heavily on this order.
- */
-static int SubpictureCmp( const void *s0, const void *s1 )
+static spu_scale_t spu_scale_unit( void )
{
- subpicture_t *p_subpic0 = *(subpicture_t**)s0;
- subpicture_t *p_subpic1 = *(subpicture_t**)s1;
- int r;
-
- r = IntegerCmp( !p_subpic0->b_absolute, !p_subpic1->b_absolute );
- if( !r )
- r = IntegerCmp( p_subpic0->i_start, p_subpic1->i_start );
- if( !r )
- r = IntegerCmp( p_subpic0->i_order, p_subpic1->i_order );
- return r;
+ return spu_scale_create( SCALE_UNIT, SCALE_UNIT );
+}
+static spu_scale_t spu_scale_createq( int wn, int wd, int hn, int hd )
+{
+ return spu_scale_create( wn * SCALE_UNIT / wd,
+ hn * SCALE_UNIT / hd );
+}
+static int spu_scale_w( int v, const spu_scale_t s )
+{
+ return v * s.w / SCALE_UNIT;
+}
+static int spu_scale_h( int v, const spu_scale_t s )
+{
+ return v * s.h / SCALE_UNIT;
+}
+static int spu_invscale_w( int v, const spu_scale_t s )
+{
+ return v * SCALE_UNIT / s.w;
+}
+static int spu_invscale_h( int v, const spu_scale_t s )
+{
+ return v * SCALE_UNIT / s.h;
}
+
/**
- * This function renders all sub picture units in the list.
+ * A few area functions helpers
*/
-void spu_RenderSubpictures( spu_t *p_spu,
- picture_t *p_pic_dst, const video_format_t *p_fmt_dst,
- subpicture_t *p_subpic_list,
- const video_format_t *p_fmt_src )
+static spu_area_t spu_area_create( int x, int y, int w, int h, spu_scale_t s )
{
- spu_private_t *p_sys = p_spu->p;
+ spu_area_t a = { .i_x = x, .i_y = y, .i_width = w, .i_height = h, .scale = s };
+ return a;
+}
+static spu_area_t spu_area_scaled( spu_area_t a )
+{
+ if( a.scale.w == SCALE_UNIT && a.scale.h == SCALE_UNIT )
+ return a;
- const int i_source_video_width = p_fmt_src->i_width;
- const int i_source_video_height = p_fmt_src->i_height;
- const mtime_t i_current_date = mdate();
+ a.i_x = spu_scale_w( a.i_x, a.scale );
+ a.i_y = spu_scale_h( a.i_y, a.scale );
- unsigned int i_subpicture;
- subpicture_t *pp_subpicture[VOUT_MAX_SUBPICTURES];
+ a.i_width = spu_scale_w( a.i_width, a.scale );
+ a.i_height = spu_scale_h( a.i_height, a.scale );
- unsigned int i_subtitle_region_count;
- spu_area_t p_subtitle_area_buffer[VOUT_MAX_SUBPICTURES];
- spu_area_t *p_subtitle_area;
- int i_subtitle_area;
+ a.scale = spu_scale_unit();
+ return a;
+}
+static spu_area_t spu_area_unscaled( spu_area_t a, spu_scale_t s )
+{
+ if( a.scale.w == s.w && a.scale.h == s.h )
+ return a;
- vlc_mutex_lock( &p_sys->lock );
+ a = spu_area_scaled( a );
- /* Preprocess subpictures */
- i_subpicture = 0;
- i_subtitle_region_count = 0;
- for( subpicture_t * p_subpic = p_subpic_list;
- p_subpic != NULL;
- p_subpic = p_subpic->p_next )
- {
- /* */
- if( p_subpic->pf_pre_render )
- p_subpic->pf_pre_render( p_spu, p_subpic, p_fmt_dst );
+ a.i_x = spu_invscale_w( a.i_x, s );
+ a.i_y = spu_invscale_h( a.i_y, s );
- if( p_subpic->pf_update_regions )
- {
- video_format_t fmt_org = *p_fmt_dst;
- fmt_org.i_width =
- fmt_org.i_visible_width = i_source_video_width;
- fmt_org.i_height =
- fmt_org.i_visible_height = i_source_video_height;
+ a.i_width = spu_invscale_w( a.i_width, s );
+ a.i_height = spu_invscale_h( a.i_height, s );
- p_subpic->pf_update_regions( p_spu, p_subpic, &fmt_org, i_current_date );
- }
+ a.scale = s;
+ return a;
+}
+static bool spu_area_overlap( spu_area_t a, spu_area_t b )
+{
+ const int i_dx = 0;
+ const int i_dy = 0;
- /* */
- if( p_subpic->b_subtitle )
- {
- for( subpicture_region_t *r = p_subpic->p_region; r != NULL; r = r->p_next )
- i_subtitle_region_count++;
- }
+ a = spu_area_scaled( a );
+ b = spu_area_scaled( b );
- /* */
- pp_subpicture[i_subpicture++] = p_subpic;
- }
+ return __MAX( a.i_x-i_dx, b.i_x ) < __MIN( a.i_x+a.i_width +i_dx, b.i_x+b.i_width ) &&
+ __MAX( a.i_y-i_dy, b.i_y ) < __MIN( a.i_y+a.i_height+i_dy, b.i_y+b.i_height );
+}
- /* Be sure we have at least 1 picture to process */
- if( i_subpicture <= 0 )
+/**
+ * Avoid area overlapping
+ */
+static void SpuAreaFixOverlap( spu_area_t *p_dst,
+ const spu_area_t *p_master,
+ const spu_area_t *p_sub, int i_sub, int i_align )
+{
+ spu_area_t a = spu_area_scaled( *p_dst );
+ bool b_moved = false;
+ bool b_ok;
+
+ assert( p_master->i_x == 0 && p_master->i_y == 0 );
+
+ /* Check for overlap
+ * XXX It is not fast O(n^2) but we should not have a lot of region */
+ do
{
- vlc_mutex_unlock( &p_sys->lock );
- return;
- }
+ b_ok = true;
+ for( int i = 0; i < i_sub; i++ )
+ {
+ spu_area_t sub = spu_area_scaled( p_sub[i] );
- /* Now order subpicture array
- * XXX The order is *really* important for overlap subtitles positionning */
- qsort( pp_subpicture, i_subpicture, sizeof(*pp_subpicture), SubpictureCmp );
+ if( !spu_area_overlap( a, sub ) )
+ continue;
- /* Allocate area array for subtitle overlap */
- i_subtitle_area = 0;
- p_subtitle_area = p_subtitle_area_buffer;
- if( i_subtitle_region_count > sizeof(p_subtitle_area_buffer)/sizeof(*p_subtitle_area_buffer) )
- p_subtitle_area = calloc( i_subtitle_region_count, sizeof(*p_subtitle_area) );
-
- /* Create the blending module */
- if( !p_sys->p_blend )
- SpuRenderCreateBlend( p_spu, p_fmt_dst->i_chroma, p_fmt_dst->i_aspect );
-
- /* Process all subpictures and regions (in the right order) */
- for( unsigned int i_index = 0; i_index < i_subpicture; i_index++ )
- {
- subpicture_t *p_subpic = pp_subpicture[i_index];
- subpicture_region_t *p_region;
-
- if( !p_subpic->p_region )
- continue;
-
- /* FIXME when possible use a better rendering size than source size
- * (max of display size and source size for example) FIXME */
- int i_render_width = p_subpic->i_original_picture_width;
- int i_render_height = p_subpic->i_original_picture_height;
- if( !i_render_width || !i_render_height )
- {
- if( i_render_width != 0 || i_render_height != 0 )
- msg_Err( p_spu, "unsupported original picture size %dx%d",
- i_render_width, i_render_height );
-
- p_subpic->i_original_picture_width = i_render_width = i_source_video_width;
- p_subpic->i_original_picture_height = i_render_height = i_source_video_height;
- }
-
- if( p_sys->p_text )
- {
- p_sys->p_text->fmt_out.video.i_width =
- p_sys->p_text->fmt_out.video.i_visible_width = i_render_width;
-
- p_sys->p_text->fmt_out.video.i_height =
- p_sys->p_text->fmt_out.video.i_visible_height = i_render_height;
- }
-
- /* Compute scaling from picture to source size */
- spu_scale_t scale = spu_scale_createq( i_source_video_width, i_render_width,
- i_source_video_height, i_render_height );
-
- /* Update scaling from source size to display size(p_fmt_dst) */
- scale.w = scale.w * p_fmt_dst->i_width / i_source_video_width;
- scale.h = scale.h * p_fmt_dst->i_height / i_source_video_height;
-
- /* Set default subpicture aspect ratio
- * FIXME if we only handle 1 aspect ratio per picture, why is it set per
- * region ? */
- p_region = p_subpic->p_region;
- if( !p_region->fmt.i_sar_num || !p_region->fmt.i_sar_den )
- {
- if( p_region->fmt.i_aspect != 0 )
+ if( i_align & SUBPICTURE_ALIGN_TOP )
{
- p_region->fmt.i_sar_den = p_region->fmt.i_aspect;
- p_region->fmt.i_sar_num = VOUT_ASPECT_FACTOR;
+ /* We go down */
+ int i_y = sub.i_y + sub.i_height;
+ if( i_y + a.i_height > p_master->i_height )
+ break;
+ a.i_y = i_y;
+ b_moved = true;
+ }
+ else if( i_align & SUBPICTURE_ALIGN_BOTTOM )
+ {
+ /* We go up */
+ int i_y = sub.i_y - a.i_height;
+ if( i_y < 0 )
+ break;
+ a.i_y = i_y;
+ b_moved = true;
}
else
{
- p_region->fmt.i_sar_den = p_fmt_dst->i_sar_den;
- p_region->fmt.i_sar_num = p_fmt_dst->i_sar_num;
+ /* TODO what to do in this case? */
+ //fprintf( stderr, "Overlap with unsupported alignment\n" );
+ break;
}
- }
- /* Take care of the aspect ratio */
- if( p_region->fmt.i_sar_num * p_fmt_dst->i_sar_den !=
- p_region->fmt.i_sar_den * p_fmt_dst->i_sar_num )
- {
- /* FIXME FIXME what about region->i_x/i_y ? */
- scale.w = scale.w *
- (int64_t)p_region->fmt.i_sar_num * p_fmt_dst->i_sar_den /
- p_region->fmt.i_sar_den / p_fmt_dst->i_sar_num;
+ b_ok = false;
+ break;
}
+ } while( !b_ok );
- /* Render all regions
- * We always transform non absolute subtitle into absolute one on the
- * first rendering to allow good subtitle overlap support.
- */
- for( p_region = p_subpic->p_region; p_region != NULL; p_region = p_region->p_next )
- {
- spu_area_t area;
+ if( b_moved )
+ *p_dst = spu_area_unscaled( a, p_dst->scale );
+}
- /* Check scale validity */
- if( scale.w <= 0 || scale.h <= 0 )
- continue;
- /* */
- SpuRenderRegion( p_spu, p_pic_dst, &area,
- p_subpic, p_region, scale, p_fmt_dst,
- p_subtitle_area, i_subtitle_area );
+/**
+ * Place a region
+ */
+static void SpuRegionPlace( int *pi_x, int *pi_y,
+ const subpicture_t *p_subpic,
+ const subpicture_region_t *p_region,
+ int i_margin_y )
+{
+ const int i_delta_x = p_region->i_x;
+ const int i_delta_y = p_region->i_y;
+ int i_x, i_y;
- if( p_subpic->b_subtitle )
- {
- area = spu_area_unscaled( area, scale );
- if( !p_subpic->b_absolute && area.i_width > 0 && area.i_height > 0 )
- {
- p_region->i_x = area.i_x;
- p_region->i_y = area.i_y;
- }
- if( p_subtitle_area )
- p_subtitle_area[i_subtitle_area++] = area;
- }
- }
- if( p_subpic->b_subtitle )
- p_subpic->b_absolute = true;
+ assert( p_region->i_x != INT_MAX && p_region->i_y != INT_MAX );
+ if( p_region->i_align & SUBPICTURE_ALIGN_TOP )
+ {
+ i_y = i_delta_y;
+ }
+ else if( p_region->i_align & SUBPICTURE_ALIGN_BOTTOM )
+ {
+ i_y = p_subpic->i_original_picture_height - p_region->fmt.i_height - i_delta_y;
+ }
+ else
+ {
+ i_y = p_subpic->i_original_picture_height / 2 - p_region->fmt.i_height / 2;
}
- /* */
- if( p_subtitle_area != p_subtitle_area_buffer )
- free( p_subtitle_area );
+ if( p_region->i_align & SUBPICTURE_ALIGN_LEFT )
+ {
+ i_x = i_delta_x;
+ }
+ else if( p_region->i_align & SUBPICTURE_ALIGN_RIGHT )
+ {
+ i_x = p_subpic->i_original_picture_width - p_region->fmt.i_width - i_delta_x;
+ }
+ else
+ {
+ i_x = p_subpic->i_original_picture_width / 2 - p_region->fmt.i_width / 2;
+ }
- vlc_mutex_unlock( &p_sys->lock );
+ if( p_subpic->b_absolute )
+ {
+ i_x = i_delta_x;
+ i_y = i_delta_y;
+ }
+
+ /* Margin shifts all subpictures */
+ if( i_margin_y != 0 )
+ i_y -= i_margin_y;
+
+ /* Clamp offset to not go out of the screen (when possible) */
+ const int i_error_x = (i_x + p_region->fmt.i_width) - p_subpic->i_original_picture_width;
+ if( i_error_x > 0 )
+ i_x -= i_error_x;
+ if( i_x < 0 )
+ i_x = 0;
+
+ const int i_error_y = (i_y + p_region->fmt.i_height) - p_subpic->i_original_picture_height;
+ if( i_error_y > 0 )
+ i_y -= i_error_y;
+ if( i_y < 0 )
+ i_y = 0;
+
+ *pi_x = i_x;
+ *pi_y = i_y;
}
-/*****************************************************************************
- * spu_SortSubpictures: find the subpictures to display
- *****************************************************************************
- * This function parses all subpictures and decides which ones need to be
- * displayed. If no picture has been selected, display_date will depend on
- * the subpicture.
- * We also check for ephemer DVD subpictures (subpictures that have
- * to be removed if a newer one is available), which makes it a lot
- * more difficult to guess if a subpicture has to be rendered or not.
- *****************************************************************************/
-static void SubpictureChain( subpicture_t **pp_head, subpicture_t *p_subpic )
+/**
+ * This function computes the current alpha value for a given region.
+ */
+static int SpuRegionAlpha( subpicture_t *p_subpic, subpicture_region_t *p_region )
{
- p_subpic->p_next = *pp_head;
+ /* Compute alpha blend value */
+ int i_fade_alpha = 255;
+ if( p_subpic->b_fade )
+ {
+ mtime_t i_fade_start = ( p_subpic->i_stop +
+ p_subpic->i_start ) / 2;
+ mtime_t i_now = mdate();
- *pp_head = p_subpic;
+ if( i_now >= i_fade_start && p_subpic->i_stop > i_fade_start )
+ {
+ i_fade_alpha = 255 * ( p_subpic->i_stop - i_now ) /
+ ( p_subpic->i_stop - i_fade_start );
+ }
+ }
+ return i_fade_alpha * p_subpic->i_alpha * p_region->i_alpha / 65025;
}
-subpicture_t *spu_SortSubpictures( spu_t *p_spu, mtime_t display_date,
- bool b_paused, bool b_subtitle_only )
+/**
+ * It will render the provided region onto p_pic_dst.
+ */
+
+static void SpuRenderRegion( spu_t *p_spu,
+ picture_t *p_pic_dst, spu_area_t *p_area,
+ subpicture_t *p_subpic, subpicture_region_t *p_region,
+ const spu_scale_t scale_size,
+ const video_format_t *p_fmt,
+ const spu_area_t *p_subtitle_area, int i_subtitle_area )
{
spu_private_t *p_sys = p_spu->p;
- int i_channel;
- subpicture_t *p_subpic = NULL;
- /* Run subpicture filters */
- filter_chain_SubFilter( p_sys->p_chain, display_date );
+ video_format_t fmt_original = p_region->fmt;
+ bool b_rerender_text = false;
+ bool b_restore_format = false;
+ int i_x_offset;
+ int i_y_offset;
- vlc_mutex_lock( &p_sys->lock );
+ video_format_t region_fmt;
+ picture_t *p_region_picture;
- /* We get an easily parsable chained list of subpictures which
- * ends with NULL since p_subpic was initialized to NULL. */
- for( i_channel = 0; i_channel < p_sys->i_channel; i_channel++ )
+ /* Invalidate area by default */
+ *p_area = spu_area_create( 0,0, 0,0, scale_size );
+
+ /* Render text region */
+ if( p_region->fmt.i_chroma == VLC_FOURCC_TEXT )
{
- subpicture_t *p_ephemer = NULL;
- mtime_t ephemer_date = 0;
- int i_index;
+ const int i_min_scale_ratio = SCALE_UNIT; /* FIXME what is the right value? (scale_size is not) */
+ SpuRenderText( p_spu, &b_rerender_text, p_subpic, p_region, i_min_scale_ratio );
+ b_restore_format = b_rerender_text;
- for( i_index = 0; i_index < VOUT_MAX_SUBPICTURES; i_index++ )
- {
- spu_heap_entry_t *p_entry = &p_sys->heap.p_entry[i_index];
- subpicture_t *p_current = p_entry->p_subpicture;
+ /* Check if the rendering has failed ... */
+ if( p_region->fmt.i_chroma == VLC_FOURCC_TEXT )
+ goto exit;
+ }
- if( !p_current || p_entry->b_reject )
- {
- if( p_entry->b_reject )
- SpuHeapDeleteAt( &p_sys->heap, i_index );
- continue;
- }
+ /* Force palette if requested
+ * FIXME b_force_palette and b_force_crop are applied to all subpictures using palette
+ * instead of only the right one (being the dvd spu).
+ */
+ const bool b_using_palette = p_region->fmt.i_chroma == VLC_FOURCC_YUVP;
+ const bool b_force_palette = b_using_palette && p_sys->b_force_palette;
+ const bool b_force_crop = b_force_palette && p_sys->b_force_crop;
+ bool b_changed_palette = false;
- if( p_current->i_channel != i_channel ||
- ( b_subtitle_only && !p_current->b_subtitle ) )
- {
- continue;
- }
- if( display_date &&
- display_date < p_current->i_start )
+
+ /* Compute the margin which is expressed in destination pixel unit
+ * The margin is applied only to subtitle and when no forced crop is
+ * requested (dvd menu) */
+ int i_margin_y = 0;
+ if( !b_force_crop && p_subpic->b_subtitle )
+ i_margin_y = spu_invscale_h( p_sys->i_margin, scale_size );
+
+ /* Place the picture
+ * We compute the position in the rendered size */
+ SpuRegionPlace( &i_x_offset, &i_y_offset,
+ p_subpic, p_region, i_margin_y );
+
+ /* Save this position for subtitle overlap support
+ * it is really important that there are given without scale_size applied */
+ *p_area = spu_area_create( i_x_offset, i_y_offset,
+ p_region->fmt.i_width, p_region->fmt.i_height,
+ scale_size );
+
+ /* Handle overlapping subtitles when possible */
+ if( p_subpic->b_subtitle && !p_subpic->b_absolute )
+ {
+ spu_area_t display = spu_area_create( 0, 0, p_fmt->i_width, p_fmt->i_height,
+ spu_scale_unit() );
+
+ SpuAreaFixOverlap( p_area, &display, p_subtitle_area, i_subtitle_area,
+ p_region->i_align );
+ }
+
+ /* Fix the position for the current scale_size */
+ i_x_offset = spu_scale_w( p_area->i_x, p_area->scale );
+ i_y_offset = spu_scale_h( p_area->i_y, p_area->scale );
+
+ /* */
+ if( b_force_palette )
+ {
+ video_palette_t *p_palette = p_region->fmt.p_palette;
+ video_palette_t palette;
+
+ /* We suppose DVD palette here */
+ palette.i_entries = 4;
+ for( int i = 0; i < 4; i++ )
+ for( int j = 0; j < 4; j++ )
+ palette.palette[i][j] = p_sys->palette[i][j];
+
+ if( p_palette->i_entries == palette.i_entries )
+ {
+ for( int i = 0; i < p_palette->i_entries; i++ )
+ for( int j = 0; j < 4; j++ )
+ b_changed_palette |= p_palette->palette[i][j] != palette.palette[i][j];
+ }
+ else
+ {
+ b_changed_palette = true;
+ }
+ *p_palette = palette;
+ }
+
+ /* */
+ region_fmt = p_region->fmt;
+ p_region_picture = p_region->p_picture;
+
+
+ /* Scale from rendered size to destination size */
+ if( p_sys->p_scale && p_sys->p_scale->p_module &&
+ ( !b_using_palette || ( p_sys->p_scale_yuvp && p_sys->p_scale_yuvp->p_module ) ) &&
+ ( scale_size.w != SCALE_UNIT || scale_size.h != SCALE_UNIT || b_using_palette ) )
+ {
+ const unsigned i_dst_width = spu_scale_w( p_region->fmt.i_width, scale_size );
+ const unsigned i_dst_height = spu_scale_h( p_region->fmt.i_height, scale_size );
+
+ /* Destroy the cache if unusable */
+ if( p_region->p_private )
+ {
+ subpicture_region_private_t *p_private = p_region->p_private;
+ bool b_changed = false;
+
+ /* Check resize changes */
+ if( i_dst_width != p_private->fmt.i_width ||
+ i_dst_height != p_private->fmt.i_height )
+ b_changed = true;
+
+ /* Check forced palette changes */
+ if( b_changed_palette )
+ b_changed = true;
+
+ if( b_changed )
{
- /* Too early, come back next monday */
- continue;
+ SpuRegionPrivateDelete( p_private );
+ p_region->p_private = NULL;
}
+ }
- if( p_current->i_start > ephemer_date )
- ephemer_date = p_current->i_start;
+ /* Scale if needed into cache */
+ if( !p_region->p_private )
+ {
+ filter_t *p_scale = p_sys->p_scale;
- if( display_date > p_current->i_stop &&
- ( !p_current->b_ephemer || p_current->i_stop > p_current->i_start ) &&
- !( p_current->b_subtitle && b_paused ) ) /* XXX Assume that subtitle are pausable */
+ picture_t *p_picture = p_region->p_picture;
+ picture_Hold( p_picture );
+
+ /* Convert YUVP to YUVA/RGBA first for better scaling quality */
+ if( b_using_palette )
{
- SpuHeapDeleteAt( &p_sys->heap, i_index );
+ filter_t *p_scale_yuvp = p_sys->p_scale_yuvp;
+
+ p_scale_yuvp->fmt_in.video = p_region->fmt;
+
+ /* TODO converting to RGBA for RGB video output is better */
+ p_scale_yuvp->fmt_out.video = p_region->fmt;
+ p_scale_yuvp->fmt_out.video.i_chroma = VLC_FOURCC_YUVA;
+
+ p_picture = p_scale_yuvp->pf_video_filter( p_scale_yuvp, p_picture );
+ if( !p_picture )
+ {
+ /* Well we will try conversion+scaling */
+ msg_Warn( p_spu, "%4.4s to %4.4s conversion failed",
+ (const char*)&p_scale_yuvp->fmt_in.video.i_chroma,
+ (const char*)&p_scale_yuvp->fmt_out.video.i_chroma );
+ }
}
- else if( p_current->b_ephemer )
+
+ /* Conversion(except from YUVP)/Scaling */
+ if( p_picture &&
+ ( p_picture->format.i_width != i_dst_width ||
+ p_picture->format.i_height != i_dst_height ) )
{
- SubpictureChain( &p_ephemer, p_current );
+ p_scale->fmt_in.video = p_picture->format;
+ p_scale->fmt_out.video = p_picture->format;
+
+ p_scale->fmt_out.video.i_width = i_dst_width;
+ p_scale->fmt_out.video.i_height = i_dst_height;
+
+ p_scale->fmt_out.video.i_visible_width =
+ spu_scale_w( p_region->fmt.i_visible_width, scale_size );
+ p_scale->fmt_out.video.i_visible_height =
+ spu_scale_h( p_region->fmt.i_visible_height, scale_size );
+
+ p_picture = p_scale->pf_video_filter( p_scale, p_picture );
+ if( !p_picture )
+ msg_Err( p_spu, "scaling failed" );
}
- else
+
+ /* */
+ if( p_picture )
{
- SubpictureChain( &p_subpic, p_current );
+ p_region->p_private = SpuRegionPrivateNew( &p_picture->format );
+ if( p_region->p_private )
+ {
+ p_region->p_private->p_picture = p_picture;
+ if( !p_region->p_private->p_picture )
+ {
+ SpuRegionPrivateDelete( p_region->p_private );
+ p_region->p_private = NULL;
+ }
+ }
+ else
+ {
+ picture_Release( p_picture );
+ }
}
}
- /* If we found ephemer subpictures, check if they have to be
- * displayed or destroyed */
- while( p_ephemer != NULL )
+ /* And use the scaled picture */
+ if( p_region->p_private )
{
- subpicture_t *p_tmp = p_ephemer;
- p_ephemer = p_ephemer->p_next;
+ region_fmt = p_region->p_private->fmt;
+ p_region_picture = p_region->p_private->p_picture;
+ }
+ }
- if( p_tmp->i_start < ephemer_date )
- {
- SpuHeapDeleteSubpicture( &p_sys->heap, p_tmp );
- }
- else
- {
- SubpictureChain( &p_subpic, p_tmp );
- }
+ /* Force cropping if requested */
+ if( b_force_crop )
+ {
+ int i_crop_x = spu_scale_w( p_sys->i_crop_x, scale_size );
+ int i_crop_y = spu_scale_h( p_sys->i_crop_y, scale_size );
+ int i_crop_width = spu_scale_w( p_sys->i_crop_width, scale_size );
+ int i_crop_height= spu_scale_h( p_sys->i_crop_height,scale_size );
+
+ /* Find the intersection */
+ if( i_crop_x + i_crop_width <= i_x_offset ||
+ i_x_offset + (int)region_fmt.i_visible_width < i_crop_x ||
+ i_crop_y + i_crop_height <= i_y_offset ||
+ i_y_offset + (int)region_fmt.i_visible_height < i_crop_y )
+ {
+ /* No intersection */
+ region_fmt.i_visible_width =
+ region_fmt.i_visible_height = 0;
+ }
+ else
+ {
+ int i_x, i_y, i_x_end, i_y_end;
+ i_x = __MAX( i_crop_x, i_x_offset );
+ i_y = __MAX( i_crop_y, i_y_offset );
+ i_x_end = __MIN( i_crop_x + i_crop_width,
+ i_x_offset + (int)region_fmt.i_visible_width );
+ i_y_end = __MIN( i_crop_y + i_crop_height,
+ i_y_offset + (int)region_fmt.i_visible_height );
+
+ region_fmt.i_x_offset = i_x - i_x_offset;
+ region_fmt.i_y_offset = i_y - i_y_offset;
+ region_fmt.i_visible_width = i_x_end - i_x;
+ region_fmt.i_visible_height = i_y_end - i_y;
+
+ i_x_offset = __MAX( i_x, 0 );
+ i_y_offset = __MAX( i_y, 0 );
}
}
- vlc_mutex_unlock( &p_sys->lock );
- return p_subpic;
+ /* Update the blender */
+ SpuRenderUpdateBlend( p_spu, p_fmt->i_width, p_fmt->i_height, ®ion_fmt );
+
+ if( p_sys->p_blend->p_module )
+ {
+ const int i_alpha = SpuRegionAlpha( p_subpic, p_region );
+
+ p_sys->p_blend->pf_video_blend( p_sys->p_blend, p_pic_dst,
+ p_region_picture, i_x_offset, i_y_offset, i_alpha );
+ }
+ else
+ {
+ msg_Err( p_spu, "blending %4.4s to %4.4s failed",
+ (char *)&p_sys->p_blend->fmt_out.video.i_chroma,
+ (char *)&p_sys->p_blend->fmt_out.video.i_chroma );
+ }
+
+exit:
+ if( b_rerender_text )
+ {
+ /* Some forms of subtitles need to be re-rendered more than
+ * once, eg. karaoke. We therefore restore the region to its
+ * pre-rendered state, so the next time through everything is
+ * calculated again.
+ */
+ picture_Release( p_region->p_picture );
+ p_region->p_picture = NULL;
+ if( p_region->p_private )
+ {
+ SpuRegionPrivateDelete( p_region->p_private );
+ p_region->p_private = NULL;
+ }
+ p_region->i_align &= ~SUBPICTURE_RENDERED;
+ }
+ if( b_restore_format )
+ p_region->fmt = fmt_original;
+}
+
+/**
+ * This function compares two 64 bits integers.
+ * It can be used by qsort.
+ */
+static int IntegerCmp( int64_t i0, int64_t i1 )
+{
+ return i0 < i1 ? -1 : i0 > i1 ? 1 : 0;
+}
+/**
+ * This function compares 2 subpictures using the following properties
+ * (ordered by priority)
+ * 1. absolute positionning
+ * 2. start time
+ * 3. creation order (per channel)
+ *
+ * It can be used by qsort.
+ *
+ * XXX spu_RenderSubpictures depends heavily on this order.
+ */
+static int SubpictureCmp( const void *s0, const void *s1 )
+{
+ subpicture_t *p_subpic0 = *(subpicture_t**)s0;
+ subpicture_t *p_subpic1 = *(subpicture_t**)s1;
+ int r;
+
+ r = IntegerCmp( !p_subpic0->b_absolute, !p_subpic1->b_absolute );
+ if( !r )
+ r = IntegerCmp( p_subpic0->i_start, p_subpic1->i_start );
+ if( !r )
+ r = IntegerCmp( p_subpic0->i_channel, p_subpic1->i_channel );
+ if( !r )
+ r = IntegerCmp( p_subpic0->i_order, p_subpic1->i_order );
+ return r;
}
/*****************************************************************************