X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fmodules%2Fgtk2%2Fproducer_pango.c;h=e4969aba59b287ab9c35692c85faf2e0f93ae986;hb=52c1bb26fcbb895824cd9237c228ea4834ce1433;hp=6609ce97756523c4295137c84c7dfec37b8058f6;hpb=d0a840da47c2c35959641c26d74b1498df0ed6be;p=mlt diff --git a/src/modules/gtk2/producer_pango.c b/src/modules/gtk2/producer_pango.c index 6609ce97..e4969aba 100644 --- a/src/modules/gtk2/producer_pango.c +++ b/src/modules/gtk2/producer_pango.c @@ -25,6 +25,7 @@ #include #include #include +#include struct producer_pango_s { @@ -33,8 +34,8 @@ struct producer_pango_s int height; uint8_t *image; uint8_t *alpha; - int fgcolor; - int bgcolor; + char *fgcolor; + char *bgcolor; int align; int pad; char *markup; @@ -55,7 +56,38 @@ static void pango_draw_background( GdkPixbuf *pixbuf, rgba_color bg ); static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const char *font, rgba_color fg, rgba_color bg, int pad, int align ); -mlt_producer producer_pango_init( const char *markup ) +/** Return nonzero if the two strings are equal, ignoring case, up to + the first n characters. +*/ +int strncaseeq(const char *s1, const char *s2, size_t n) +{ + for ( ; n > 0; n--) + { + if (tolower(*s1++) != tolower(*s2++)) + return 0; + } + return 1; +} + +/** Parse the alignment property. +*/ + +static int alignment_parse( char* align ) +{ + int ret = pango_align_left; + + if ( align == NULL ); + else if ( isdigit( align[ 0 ] ) ) + ret = atoi( align ); + else if ( align[ 0 ] == 'c' || align[ 0 ] == 'm' ) + ret = pango_align_center; + else if ( align[ 0 ] == 'r' ) + ret = pango_align_right; + + return ret; +} + +mlt_producer producer_pango_init( const char *filename ) { producer_pango this = calloc( sizeof( struct producer_pango_s ), 1 ); if ( this != NULL && mlt_producer_init( &this->parent, this ) == 0 ) @@ -63,7 +95,7 @@ mlt_producer producer_pango_init( const char *markup ) mlt_producer producer = &this->parent; producer->get_frame = producer_get_frame; - producer->close = producer_close; + producer->close = ( mlt_destructor )producer_close; // This is required to initialise gdk-pixbuf g_type_init(); @@ -72,19 +104,68 @@ mlt_producer producer_pango_init( const char *markup ) mlt_properties properties = mlt_producer_properties( &this->parent ); // Set the default properties - mlt_properties_set_int( properties, "video_standard", mlt_video_standard_pal ); - mlt_properties_set_int( properties, "fgcolor", 0xffffffff ); - mlt_properties_set_int( properties, "bgcolor", 0x00000000 ); + mlt_properties_set( properties, "fgcolour", "0xffffffff" ); + mlt_properties_set( properties, "bgcolour", "0x00000000" ); mlt_properties_set_int( properties, "align", pango_align_left ); mlt_properties_set_int( properties, "pad", 0 ); - mlt_properties_set( properties, "markup", ( char * ) ( markup == NULL ? "" : markup ) ); mlt_properties_set( properties, "text", "" ); mlt_properties_set( properties, "font", "Sans 48" ); - mlt_properties_set_int( properties, "x", 0 ); - mlt_properties_set_int( properties, "y", 0 ); - mlt_properties_set_double( properties, "mix", 1.0 ); + mlt_properties_set( properties, "encoding", "UTF-8" ); - mlt_properties_set( properties, "resource", "pango" ); + if ( filename == NULL ) + { + mlt_properties_set( properties, "markup", "" ); + } + else if ( filename[ 0 ] == '+' || strstr( filename, "/+" ) ) + { + char *copy = strdup( filename + 1 ); + char *markup = copy; + if ( strstr( markup, "/+" ) ) + markup = strstr( markup, "/+" ) + 2; + ( *strrchr( markup, '.' ) ) = '\0'; + while ( strchr( markup, '~' ) ) + ( *strchr( markup, '~' ) ) = '\n'; + mlt_properties_set( properties, "resource", ( char * )filename ); + mlt_properties_set( properties, "markup", markup ); + free( copy ); + } + else + { + FILE *f = fopen( filename, "r" ); + if ( f != NULL ) + { + char line[81]; + char *markup = NULL; + size_t size = 0; + line[80] = '\0'; + + while ( fgets( line, 80, f ) ) + { + size += strlen( line ) + 1; + if ( markup ) + { + markup = realloc( markup, size ); + strcat( markup, line ); + } + else + { + markup = strdup( line ); + } + } + fclose( f ); + + if ( markup[ strlen( markup ) - 1 ] == '\n' ) + markup[ strlen( markup ) - 1 ] = '\0'; + + mlt_properties_set( properties, "resource", ( char * ) filename ); + mlt_properties_set( properties, "markup", ( char * ) ( markup == NULL ? "" : markup ) ); + free( markup ); + } + else + { + mlt_properties_set( properties, "markup", "" ); + } + } return producer; } @@ -92,10 +173,253 @@ mlt_producer producer_pango_init( const char *markup ) return NULL; } -static int producer_get_image( mlt_frame this, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable ) +static void set_string( char **string, char *value, char *fallback ) +{ + if ( value != NULL ) + { + free( *string ); + *string = strdup( value ); + } + else if ( *string == NULL && fallback != NULL ) + { + *string = strdup( fallback ); + } + else if ( *string != NULL && fallback == NULL ) + { + free( *string ); + *string = NULL; + } +} + +rgba_color parse_color( char *color ) +{ + rgba_color result = { 0xff, 0xff, 0xff, 0xff }; + + if ( !strncmp( color, "0x", 2 ) ) + { + unsigned int temp = 0; + sscanf( color + 2, "%x", &temp ); + result.r = ( temp >> 24 ) & 0xff; + result.g = ( temp >> 16 ) & 0xff; + result.b = ( temp >> 8 ) & 0xff; + result.a = ( temp ) & 0xff; + } + else if ( !strcmp( color, "red" ) ) + { + result.r = 0xff; + result.g = 0x00; + result.b = 0x00; + } + else if ( !strcmp( color, "green" ) ) + { + result.r = 0x00; + result.g = 0xff; + result.b = 0x00; + } + else if ( !strcmp( color, "blue" ) ) + { + result.r = 0x00; + result.g = 0x00; + result.b = 0xff; + } + else + { + unsigned int temp = 0; + sscanf( color, "%d", &temp ); + result.r = ( temp >> 24 ) & 0xff; + result.g = ( temp >> 16 ) & 0xff; + result.b = ( temp >> 8 ) & 0xff; + result.a = ( temp ) & 0xff; + } + + return result; +} + +/** Convert a string property to UTF-8 +*/ +static int iconv_utf8( mlt_properties properties, char *prop_name, const char* encoding ) { + char *text = mlt_properties_get( properties, prop_name ); + int result = -1; + + iconv_t cd = iconv_open( "UTF-8", encoding ); + if ( cd != ( iconv_t )-1 ) + { + char *inbuf_p = strdup( text ); + size_t inbuf_n = strlen( text ); + size_t outbuf_n = inbuf_n * 6; + char *outbuf = mlt_pool_alloc( outbuf_n ); + char *outbuf_p = outbuf; + + if ( iconv( cd, &inbuf_p, &inbuf_n, &outbuf_p, &outbuf_n ) != -1 ) + { + outbuf[ outbuf_n ] = 0; + mlt_properties_set( properties, prop_name, outbuf ); + result = 0; + } + mlt_pool_release( outbuf ); + iconv_close( cd ); + } + return result; +} + +static void refresh_image( mlt_frame frame, int width, int height ) +{ + // Pixbuf + GdkPixbuf *pixbuf = NULL; + // Obtain properties of frame - mlt_properties properties = mlt_frame_properties( this ); + mlt_properties properties = mlt_frame_properties( frame ); + + // Obtain the producer pango for this frame + producer_pango this = mlt_properties_get_data( properties, "producer_pango", NULL ); + + // Obtain the producer + mlt_producer producer = &this->parent; + + // Obtain the producer properties + mlt_properties producer_props = mlt_producer_properties( producer ); + + // Get producer properties + char *fg = mlt_properties_get( producer_props, "fgcolour" ); + char *bg = mlt_properties_get( producer_props, "bgcolour" ); + int align = alignment_parse( mlt_properties_get( producer_props, "align" ) ); + int pad = mlt_properties_get_int( producer_props, "pad" ); + char *markup = mlt_properties_get( producer_props, "markup" ); + char *text = mlt_properties_get( producer_props, "text" ); + char *font = mlt_properties_get( producer_props, "font" ); + char *encoding = mlt_properties_get( producer_props, "encoding" ); + + // See if any properties changed + int property_changed = ( align != this->align ); + property_changed = property_changed || ( this->fgcolor == NULL || ( fg && strcmp( fg, this->fgcolor ) ) ); + property_changed = property_changed || ( this->bgcolor == NULL || ( bg && strcmp( bg, this->bgcolor ) ) ); + property_changed = property_changed || ( pad != this->pad ); + property_changed = property_changed || ( markup && this->markup && strcmp( markup, this->markup ) ); + property_changed = property_changed || ( text && this->text && strcmp( text, this->text ) ); + property_changed = property_changed || ( font && this->font && strcmp( font, this->font ) ); + + // Save the properties for next comparison + this->align = align; + this->pad = pad; + set_string( &this->fgcolor, fg, "0xffffffff" ); + set_string( &this->bgcolor, bg, "0x00000000" ); + set_string( &this->markup, markup, NULL ); + set_string( &this->text, text, NULL ); + set_string( &this->font, font, "Sans 48" ); + + if ( property_changed ) + { + rgba_color fgcolor = parse_color( this->fgcolor ); + rgba_color bgcolor = parse_color( this->bgcolor ); + + mlt_pool_release( this->image ); + mlt_pool_release( this->alpha ); + this->image = NULL; + this->alpha = NULL; + + // Convert from specified encoding to UTF-8 + if ( encoding != NULL && !strncaseeq( encoding, "utf-8", 5 ) && !strncaseeq( encoding, "utf8", 4 ) ) + { + if ( markup != NULL && iconv_utf8( producer_props, "markup", encoding ) != -1 ) + { + markup = mlt_properties_get( producer_props, "markup" ); + set_string( &this->markup, markup, NULL ); + } + if ( text != NULL && iconv_utf8( producer_props, "text", encoding ) != -1 ) + { + text = mlt_properties_get( producer_props, "text" ); + set_string( &this->text, text, NULL ); + } + } + + // Render the title + pixbuf = pango_get_pixbuf( markup, text, font, fgcolor, bgcolor, pad, align ); + + if ( pixbuf != NULL ) + { + // Register this pixbuf for destruction and reuse + mlt_properties_set_data( producer_props, "pixbuf", pixbuf, 0, ( mlt_destructor )g_object_unref, NULL ); + + mlt_properties_set_int( producer_props, "real_width", gdk_pixbuf_get_width( pixbuf ) ); + mlt_properties_set_int( producer_props, "real_height", gdk_pixbuf_get_height( pixbuf ) ); + + // Store the width/height of the pixbuf temporarily + this->width = gdk_pixbuf_get_width( pixbuf ); + this->height = gdk_pixbuf_get_height( pixbuf ); + } + } + else if ( width > 0 && ( this->image == NULL || width != this->width || height != this->height ) ) + { + mlt_pool_release( this->image ); + mlt_pool_release( this->alpha ); + this->image = NULL; + this->alpha = NULL; + + pixbuf = mlt_properties_get_data( producer_props, "pixbuf", NULL ); + } + + // If we have a pixbuf and a valid width + if ( pixbuf && width > 0 ) + { + char *interps = mlt_properties_get( properties, "rescale.interp" ); + int interp = GDK_INTERP_BILINEAR; + + if ( strcmp( interps, "nearest" ) == 0 ) + interp = GDK_INTERP_NEAREST; + else if ( strcmp( interps, "tiles" ) == 0 ) + interp = GDK_INTERP_TILES; + else if ( strcmp( interps, "hyper" ) == 0 ) + interp = GDK_INTERP_HYPER; + +// fprintf( stderr, "SCALING PANGO from %dx%d to %dx%d was %dx%d\n", gdk_pixbuf_get_width( pixbuf ), gdk_pixbuf_get_height( pixbuf ), width, height, this->width, this->height ); + + // Note - the original pixbuf is already safe and ready for destruction + pixbuf = gdk_pixbuf_scale_simple( pixbuf, width, height, interp ); + + // Store width and height + this->width = width; + this->height = height; + + // Allocate/define image + this->image = mlt_pool_alloc( width * ( height + 1 ) * 2 ); + this->alpha = mlt_pool_alloc( this->width * this->height ); + + // Convert the image + mlt_convert_rgb24a_to_yuv422( gdk_pixbuf_get_pixels( pixbuf ), + this->width, this->height, + gdk_pixbuf_get_rowstride( pixbuf ), + this->image, this->alpha ); + + // Finished with pixbuf now + g_object_unref( pixbuf ); + } + + // Set width/height + mlt_properties_set_int( properties, "width", this->width ); + mlt_properties_set_int( properties, "height", this->height ); + mlt_properties_set_int( properties, "real_width", mlt_properties_get_int( producer_props, "real_width" ) ); + mlt_properties_set_int( properties, "real_height", mlt_properties_get_int( producer_props, "real_height" ) ); + + // pass the image data without destructor + mlt_properties_set_data( properties, "image", this->image, this->width * ( this->height + 1 ) * 2, NULL, NULL ); + mlt_properties_set_data( properties, "alpha", this->alpha, this->width * this->height, NULL, NULL ); +} + +static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable ) +{ + // Obtain properties of frame + mlt_properties properties = mlt_frame_properties( frame ); + + *width = mlt_properties_get_int( properties, "rescale_width" ); + *height = mlt_properties_get_int( properties, "rescale_height" ); + + // Refresh the image + refresh_image( frame, *width, *height ); + + // Determine format + //mlt_producer this = mlt_properties_get_data( properties, "producer_pango", NULL ); + //*format = ( mlt_properties_get_int( mlt_producer_properties( this ), "bpp" ) == 4 ) ? mlt_image_rgb24a : mlt_image_rgb24; // May need to know the size of the image to clone it int size = 0; @@ -111,14 +435,14 @@ static int producer_get_image( mlt_frame this, uint8_t **buffer, mlt_image_forma if ( writable ) { // Clone our image - uint8_t *copy = malloc( size ); + uint8_t *copy = mlt_pool_alloc( size ); memcpy( copy, image, size ); // We're going to pass the copy on image = copy; // Now update properties so we free the copy after - mlt_properties_set_data( properties, "image", copy, size, free, NULL ); + mlt_properties_set_data( properties, "image", copy, size, ( mlt_destructor )mlt_pool_release, NULL ); } // Pass on the image @@ -139,167 +463,31 @@ static uint8_t *producer_get_alpha_mask( mlt_frame this ) static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index ) { producer_pango this = producer->child; - GdkPixbuf *pixbuf = NULL; // Generate a frame *frame = mlt_frame_init( ); // Obtain properties of frame and producer mlt_properties properties = mlt_frame_properties( *frame ); - mlt_properties producer_props = mlt_producer_properties( producer ); - - // Get producer properties - int fg = mlt_properties_get_int( producer_props, "fgcolor" ); - int bg = mlt_properties_get_int( producer_props, "bgcolor" ); - int align = mlt_properties_get_int( producer_props, "align" ); - int pad = mlt_properties_get_int( producer_props, "pad" ); - char *markup = mlt_properties_get( producer_props, "markup" ); - char *text = mlt_properties_get( producer_props, "text" ); - char *font = mlt_properties_get( producer_props, "font" ); - // See if any properties changed - int property_changed = ( fg != this->fgcolor ); - property_changed = property_changed || ( bg != this->bgcolor ); - property_changed = property_changed || ( align != this->align ); - property_changed = property_changed || ( pad != this->pad ); - property_changed = property_changed || ( markup && this->markup && strcmp( markup, this->markup ) ); - property_changed = property_changed || ( text && this->text && strcmp( text, this->text ) ); - property_changed = property_changed || ( font && this->font && strcmp( font, this->font ) ); + // Set the producer on the frame properties + mlt_properties_set_data( properties, "producer_pango", this, 0, NULL, NULL ); - // Save the properties for next comparison - this->fgcolor = fg; - this->bgcolor = bg; - this->align = align; - this->pad = pad; - if ( markup != NULL ) - { - if ( this->markup != NULL ) - free( this->markup ); - this->markup = strdup( markup ); - } - if ( text != NULL ) - { - if ( this->text != NULL ) - free( this->text ); - this->text = strdup( text ); - } - if ( font != NULL ) - { - if ( this->font != NULL ) - free( this->font ); - this->font = strdup( font ); - } - - if ( property_changed ) - { - rgba_color fgcolor = - { - ( fg & 0xff000000 ) >> 24, - ( fg & 0x00ff0000 ) >> 16, - ( fg & 0x0000ff00 ) >> 8, - ( fg & 0x000000ff ) - }; - rgba_color bgcolor = - { - ( bg & 0xff000000 ) >> 24, - ( bg & 0x00ff0000 ) >> 16, - ( bg & 0x0000ff00 ) >> 8, - ( bg & 0x000000ff ) - }; + // Refresh the pango image + refresh_image( *frame, 0, 0 ); - // Render the title - pixbuf = pango_get_pixbuf( markup, text, font, fgcolor, bgcolor, pad, align ); - } + // Set producer-specific frame properties + mlt_properties_set_int( properties, "progressive", 1 ); + mlt_properties_set_double( properties, "aspect_ratio", 1 ); - // If we have a pixbuf - if ( pixbuf ) - { - // Scale to adjust for sample aspect ratio - if ( mlt_properties_get_int( properties, "video_standard" ) == mlt_video_standard_pal ) - { - GdkPixbuf *temp = pixbuf; - GdkPixbuf *scaled = gdk_pixbuf_scale_simple( pixbuf, - (gint) ( (float) gdk_pixbuf_get_width( pixbuf ) * 54.0/59.0), - gdk_pixbuf_get_height( pixbuf ), GDK_INTERP_HYPER ); - pixbuf = scaled; - g_object_unref( temp ); - } - else - { - GdkPixbuf *temp = pixbuf; - GdkPixbuf *scaled = gdk_pixbuf_scale_simple( pixbuf, - (gint) ( (float) gdk_pixbuf_get_width( pixbuf ) * 11.0/10.0 ), - gdk_pixbuf_get_height( pixbuf ), GDK_INTERP_HYPER ); - pixbuf = scaled; - g_object_unref( temp ); - } - - // Store width and height - this->width = gdk_pixbuf_get_width( pixbuf ); - this->height = gdk_pixbuf_get_height( pixbuf ); + // Set alpha call back + ( *frame )->get_alpha_mask = producer_get_alpha_mask; - // Allocate/define image and alpha - uint8_t *image = malloc( this->width * this->height * 2 ); - uint8_t *alpha = NULL; - - // Extract YUV422 and alpha - if ( gdk_pixbuf_get_has_alpha( pixbuf ) ) - { - // Allocate the alpha mask - alpha = malloc( this->width * this->height ); - - // Convert the image - mlt_convert_rgb24a_to_yuv422( gdk_pixbuf_get_pixels( pixbuf ), - this->width, this->height, - gdk_pixbuf_get_rowstride( pixbuf ), - image, alpha ); - } - else - { - // No alpha to extract - mlt_convert_rgb24_to_yuv422( gdk_pixbuf_get_pixels( pixbuf ), - this->width, this->height, - gdk_pixbuf_get_rowstride( pixbuf ), - image ); - } - - // Finished with pixbuf now - g_object_unref( pixbuf ); - - // if single picture, reference the image and alpha in the producer - if ( this->image != NULL ) - free( this->image ); - this->image = image; - if ( this->alpha != NULL ) - free( this->alpha ); - this->alpha = alpha; - - } - - if ( this->image != NULL ) - { - // Set width/height - mlt_properties_set_int( properties, "width", this->width ); - mlt_properties_set_int( properties, "height", this->height ); - - // Set the compositing properties - mlt_properties_set_int( properties, "x", mlt_properties_get_int( producer_props, "x" ) ); - mlt_properties_set_int( properties, "y", mlt_properties_get_int( producer_props, "y" ) ); - mlt_properties_set_double( properties, "mix", mlt_properties_get_double( producer_props, "mix" ) ); - - // if picture sequence pass the image and alpha data without destructor - mlt_properties_set_data( properties, "image", this->image, this->width * this->height * 2, NULL, NULL ); - mlt_properties_set_data( properties, "alpha", this->alpha, this->width * this->height, NULL, NULL ); - - // Set alpha mask call back - ( *frame )->get_alpha_mask = producer_get_alpha_mask; - - // Stack the get image callback - mlt_frame_push_get_image( *frame, producer_get_image ); - } + // Stack the get image callback + mlt_frame_push_get_image( *frame, producer_get_image ); // Update timecode on the frame we're creating - mlt_frame_set_timecode( *frame, mlt_producer_position( producer ) ); + mlt_frame_set_position( *frame, mlt_producer_position( producer ) ); // Calculate the next timecode mlt_producer_prepare_next( producer ); @@ -310,16 +498,13 @@ static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int i static void producer_close( mlt_producer parent ) { producer_pango this = parent->child; - if ( this->image != NULL ) - free( this->image ); - if ( this->alpha != NULL ) - free( this->alpha ); - if ( this->markup != NULL ) - free( this->markup ); - if ( this->text != NULL ) - free( this->text ); - if ( this->font != NULL ) - free( this->font ); + mlt_pool_release( this->image ); + mlt_pool_release( this->alpha ); + free( this->fgcolor ); + free( this->bgcolor ); + free( this->markup ); + free( this->text ); + free( this->font ); parent->close = NULL; mlt_producer_close( parent ); free( this ); @@ -378,10 +563,12 @@ static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const bitmap.width = w; bitmap.pitch = 32 * ( ( w + 31 ) / 31 ); bitmap.rows = h; - bitmap.buffer = ( unsigned char * ) calloc( 1, h * bitmap.pitch ); + bitmap.buffer = mlt_pool_alloc( h * bitmap.pitch ); bitmap.num_grays = 256; bitmap.pixel_mode = ft_pixel_mode_grays; + memset( bitmap.buffer, 0, h * bitmap.pitch ); + pango_ft2_render_layout( &bitmap, layout, 0, 0 ); src = bitmap.buffer; @@ -400,12 +587,10 @@ static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const } dest += stride; } - free( bitmap.buffer ); - + mlt_pool_release( bitmap.buffer ); g_object_unref( layout ); g_object_unref( context ); g_object_unref( fontmap ); return pixbuf; } -