/*
* filter_avcolour_space.c -- Colour space filter
- * Copyright (C) 2004-2005 Ushodaya Enterprises Limited
+ * Copyright (C) 2004-2014 Ushodaya Enterprises Limited
* Author: Charles Yates <charles.yates@pandora.be>
*
* This library is free software; you can redistribute it and/or
#include <framework/mlt_filter.h>
#include <framework/mlt_frame.h>
#include <framework/mlt_log.h>
+#include <framework/mlt_profile.h>
#include <framework/mlt_producer.h>
// ffmpeg Header files
-#include <avformat.h>
-#ifdef SWSCALE
-#include <swscale.h>
-#endif
-
-#if LIBAVUTIL_VERSION_INT < (50<<16)
-#define PIX_FMT_YUYV422 PIX_FMT_YUV422
-#endif
+#include <libavformat/avformat.h>
+#include <libswscale/swscale.h>
#include <stdio.h>
#include <stdlib.h>
case mlt_image_yuv420p:
value = PIX_FMT_YUV420P;
break;
- case mlt_image_none:
- mlt_log_error( NULL, "[filter avcolor_space] Invalid format\n" );
+ default:
+ mlt_log_error( NULL, "[filter avcolor_space] Invalid format %s\n",
+ mlt_image_format_name( format ) );
break;
}
return value;
}
-static void av_convert_image( mlt_properties properties, uint8_t *out, uint8_t *in, int out_fmt, int in_fmt, int width, int height )
+static int set_luma_transfer( struct SwsContext *context, int src_colorspace, int dst_colorspace, int full_range )
+{
+ const int *src_coefficients = sws_getCoefficients( SWS_CS_DEFAULT );
+ const int *dst_coefficients = sws_getCoefficients( SWS_CS_DEFAULT );
+ int brightness = 0;
+ int contrast = 1 << 16;
+ int saturation = 1 << 16;
+
+ switch ( src_colorspace )
+ {
+ case 170:
+ case 470:
+ case 601:
+ case 624:
+ src_coefficients = sws_getCoefficients( SWS_CS_ITU601 );
+ break;
+ case 240:
+ src_coefficients = sws_getCoefficients( SWS_CS_SMPTE240M );
+ break;
+ case 709:
+ src_coefficients = sws_getCoefficients( SWS_CS_ITU709 );
+ break;
+ default:
+ break;
+ }
+ switch ( dst_colorspace )
+ {
+ case 170:
+ case 470:
+ case 601:
+ case 624:
+ src_coefficients = sws_getCoefficients( SWS_CS_ITU601 );
+ break;
+ case 240:
+ src_coefficients = sws_getCoefficients( SWS_CS_SMPTE240M );
+ break;
+ case 709:
+ src_coefficients = sws_getCoefficients( SWS_CS_ITU709 );
+ break;
+ default:
+ break;
+ }
+ return sws_setColorspaceDetails( context, src_coefficients, full_range, dst_coefficients, full_range,
+ brightness, contrast, saturation );
+}
+
+// returns set_lumage_transfer result
+static int av_convert_image( uint8_t *out, uint8_t *in, int out_fmt, int in_fmt,
+ int width, int height, int src_colorspace, int dst_colorspace, int use_full_range )
{
AVPicture input;
AVPicture output;
- avpicture_fill( &input, in, in_fmt, width, height );
- avpicture_fill( &output, out, out_fmt, width, height );
-
-#ifdef SWSCALE
- int flags = SWS_BILINEAR | SWS_ACCURATE_RND;
- struct SwsContext *context = mlt_properties_get_data( properties, "avcolorspace.swscale", NULL );
- struct SwsContext *new_context;
+ int flags = SWS_BICUBIC | SWS_ACCURATE_RND;
+ int error = -1;
if ( out_fmt == PIX_FMT_YUYV422 )
flags |= SWS_FULL_CHR_H_INP;
#ifdef USE_SSE
flags |= SWS_CPU_CAPS_MMX2;
#endif
- new_context = sws_getCachedContext( context, width, height, in_fmt,
+ if ( out_fmt == PIX_FMT_YUV420P && use_full_range )
+ out_fmt = PIX_FMT_YUVJ420P;
+
+ avpicture_fill( &input, in, in_fmt, width, height );
+ avpicture_fill( &output, out, out_fmt, width, height );
+ struct SwsContext *context = sws_getContext( width, height, in_fmt,
width, height, out_fmt, flags, NULL, NULL, NULL);
-// Disable using cached context here due to crashing in libswscale.
-// if ( new_context != context )
-// mlt_properties_set_data( properties, "avcolorspace.swscale", new_context, 0, NULL, NULL );
- sws_scale( new_context, input.data, input.linesize, 0, height,
- output.data, output.linesize);
- sws_freeContext( new_context );
-
-#else
- img_convert( &output, out_fmt, &input, in_fmt, width, height );
-#endif
+ if ( context )
+ {
+ // libswscale wants the RGB colorspace to be SWS_CS_DEFAULT, which is = SWS_CS_ITU601.
+ if ( out_fmt == PIX_FMT_RGB24 || out_fmt == PIX_FMT_RGBA )
+ dst_colorspace = 601;
+ error = set_luma_transfer( context, src_colorspace, dst_colorspace, use_full_range );
+ sws_scale( context, (const uint8_t* const*) input.data, input.linesize, 0, height,
+ output.data, output.linesize);
+ sws_freeContext( context );
+ }
+ return error;
}
/** Do it :-).
if ( *format != output_format )
{
- mlt_log_debug( NULL, "[filter avcolor_space] %s -> %s\n",
- mlt_image_format_name( *format ), mlt_image_format_name( output_format ) );
+ mlt_profile profile = mlt_service_profile(
+ MLT_PRODUCER_SERVICE( mlt_frame_get_original_producer( frame ) ) );
+ int colorspace = mlt_properties_get_int( properties, "colorspace" );
+ int force_full_luma = 0;
+
+ mlt_log_debug( NULL, "[filter avcolor_space] %s -> %s @ %dx%d space %d->%d\n",
+ mlt_image_format_name( *format ), mlt_image_format_name( output_format ),
+ width, height, colorspace, profile->colorspace );
int in_fmt = convert_mlt_to_av_cs( *format );
int out_fmt = convert_mlt_to_av_cs( output_format );
- int size = avpicture_get_size( out_fmt, width, height );
+ int size = FFMAX( avpicture_get_size( out_fmt, width, height ),
+ mlt_image_format_size( output_format, width, height, NULL ) );
uint8_t *output = mlt_pool_alloc( size );
if ( *format == mlt_image_rgb24a || *format == mlt_image_opengl )
}
while ( --n > 0 );
}
- mlt_properties_set_data( properties, "alpha", alpha, len, mlt_pool_release, NULL );
- frame->get_alpha_mask = NULL;
+ mlt_frame_set_alpha( frame, alpha, len, mlt_pool_release );
}
}
// Update the output
- mlt_producer producer = mlt_frame_get_original_producer( frame );
- mlt_properties prod_props = MLT_PRODUCER_PROPERTIES( mlt_producer_cut_parent( producer ) );
- av_convert_image( prod_props, output, *image, out_fmt, in_fmt, width, height );
+ if ( *format == mlt_image_yuv422 && mlt_properties_get( properties, "force_full_luma" )
+ && ( output_format == mlt_image_rgb24 || output_format == mlt_image_rgb24a ) )
+ {
+ // By removing the frame property we only permit the luma to skip scaling once.
+ // Thereafter, we let swscale scale the luma range as it pleases since it seems
+ // we do not have control over the RGB to YUV conversion.
+ force_full_luma = mlt_properties_get_int( properties, "force_full_luma" );
+ mlt_properties_set( properties, "force_full_luma", NULL );
+ }
+ if ( !av_convert_image( output, *image, out_fmt, in_fmt, width, height,
+ colorspace, profile->colorspace, force_full_luma ) )
+ {
+ // The new colorspace is only valid if destination is YUV.
+ if ( output_format == mlt_image_yuv422 || output_format == mlt_image_yuv420p )
+ mlt_properties_set_int( properties, "colorspace", profile->colorspace );
+ }
*image = output;
*format = output_format;
- mlt_properties_set_data( properties, "image", output, size, mlt_pool_release, NULL );
+ mlt_frame_set_image( frame, output, size, mlt_pool_release );
mlt_properties_set_int( properties, "format", output_format );
+
+ if ( output_format == mlt_image_rgb24a || output_format == mlt_image_opengl )
+ {
+ register int len = width * height;
+ int alpha_size = 0;
+ uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
+ mlt_properties_get_data( properties, "alpha", &alpha_size );
+
+ if ( alpha && alpha_size >= len )
+ {
+ // Merge the alpha mask from into the RGBA image using Duff's Device
+ register uint8_t *s = alpha;
+ register uint8_t *d = *image + 3; // start on the alpha component
+ register int n = ( len + 7 ) / 8;
+
+ switch ( len % 8 )
+ {
+ case 0: do { *d = *s++; d += 4;
+ case 7: *d = *s++; d += 4;
+ case 6: *d = *s++; d += 4;
+ case 5: *d = *s++; d += 4;
+ case 4: *d = *s++; d += 4;
+ case 3: *d = *s++; d += 4;
+ case 2: *d = *s++; d += 4;
+ case 1: *d = *s++; d += 4;
+ }
+ while ( --n > 0 );
+ }
+ }
+ }
}
return error;
}
+/* TODO: Enable this to force colorspace conversion. Cost is heavy due to RGB conversions. */
+#if 0
+static int get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
+{
+ int error = 0;
+ mlt_profile profile = (mlt_profile) mlt_frame_pop_get_image( frame );
+ mlt_properties properties = MLT_FRAME_PROPERTIES(frame);
+ mlt_image_format format_from = *format;
+ mlt_image_format format_to = mlt_image_rgb24;
+
+ error = mlt_frame_get_image( frame, image, format, width, height, writable );
+
+ int frame_colorspace = mlt_properties_get_int( properties, "colorspace" );
+
+ if ( !error && *format == mlt_image_yuv422 && profile->colorspace > 0 &&
+ frame_colorspace > 0 && frame_colorspace != profile->colorspace )
+ {
+ mlt_log_debug( NULL, "[filter avcolor_space] colorspace %d -> %d\n",
+ frame_colorspace, profile->colorspace );
+
+ // Convert to RGB using frame's colorspace
+ error = convert_image( frame, image, &format_from, format_to );
+
+ // Convert to YUV using profile's colorspace
+ if ( !error )
+ {
+ *image = mlt_properties_get_data( properties, "image", NULL );
+ format_from = mlt_image_rgb24;
+ format_to = *format;
+ mlt_properties_set_int( properties, "colorspace", profile->colorspace );
+ error = convert_image( frame, image, &format_from, format_to );
+ *image = mlt_properties_get_data( properties, "image", NULL );
+ }
+ }
+
+ return error;
+}
+#endif
+
/** Filter processing.
*/
-static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
+static mlt_frame filter_process( mlt_filter filter, mlt_frame frame )
{
- frame->convert_image = convert_image;
- return frame;
-}
+ // Set a default colorspace on the frame if not yet set by the producer.
+ // The producer may still change it during get_image.
+ // This way we do not have to modify each producer to set a valid colorspace.
+ mlt_properties properties = MLT_FRAME_PROPERTIES(frame);
+ if ( mlt_properties_get_int( properties, "colorspace" ) <= 0 )
+ mlt_properties_set_int( properties, "colorspace", mlt_service_profile( MLT_FILTER_SERVICE(filter) )->colorspace );
-static void filter_close( mlt_filter filter )
-{
-#ifdef SWSCALE
- struct SwsContext *context = mlt_properties_get_data( MLT_FILTER_PROPERTIES(filter), "avcolorspace.swscale", NULL );
- sws_freeContext( context );
-#endif
+ if ( !frame->convert_image )
+ frame->convert_image = convert_image;
+
+// Not working yet - see comment for get_image() above.
+// mlt_frame_push_service( frame, mlt_service_profile( MLT_FILTER_SERVICE( filter ) ) );
+// mlt_frame_push_get_image( frame, get_image );
+
+ return frame;
}
/** Constructor for the filter.
mlt_filter filter_avcolour_space_init( void *arg )
{
-#ifdef SWSCALE
-#if (LIBSWSCALE_VERSION_INT >= ((0<<16)+(7<<8)+2))
// Test to see if swscale accepts the arg as resolution
if ( arg )
{
- int width = (int) arg;
- struct SwsContext *context = sws_getContext( width, width, PIX_FMT_RGB32, 64, 64, PIX_FMT_RGB32, SWS_BILINEAR, NULL, NULL, NULL);
- if ( context )
- sws_freeContext( context );
- else
- return NULL;
- }
-#else
- return NULL;
-#endif
-#endif
- mlt_filter this = mlt_filter_new( );
- if ( this != NULL )
- {
- this->process = filter_process;
- this->close = filter_close;
+ int *width = (int*) arg;
+ if ( *width > 0 )
+ {
+ struct SwsContext *context = sws_getContext( *width, *width, PIX_FMT_RGB32, 64, 64, PIX_FMT_RGB32, SWS_BILINEAR, NULL, NULL, NULL);
+ if ( context )
+ sws_freeContext( context );
+ else
+ return NULL;
+ }
}
- return this;
+ mlt_filter filter = mlt_filter_new( );
+ if ( filter != NULL )
+ filter->process = filter_process;
+ return filter;
}
projects / mlt / blobdiff