/*
* 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_frame.h>
#include <framework/mlt_log.h>
#include <framework/mlt_profile.h>
+#include <framework/mlt_producer.h>
// ffmpeg Header files
#include <libavformat/avformat.h>
-#ifdef SWSCALE
#include <libswscale/swscale.h>
-#endif
-
-#if LIBAVUTIL_VERSION_INT < (50<<16)
-#define PIX_FMT_YUYV422 PIX_FMT_YUV422
-#endif
#include <stdio.h>
#include <stdlib.h>
return value;
}
-static void set_luma_transfer( struct SwsContext *context, int colorspace, int use_full_range )
+static int set_luma_transfer( struct SwsContext *context, int src_colorspace, int dst_colorspace, int full_range )
{
-#if defined(SWSCALE) && (LIBSWSCALE_VERSION_INT >= ((0<<16)+(7<<8)+2))
- int *coefficients;
- const int *new_coefficients;
- int full_range;
- int brightness, contrast, saturation;
-
- if ( sws_getColorspaceDetails( context, &coefficients, &full_range, &coefficients, &full_range,
- &brightness, &contrast, &saturation ) != -1 )
+ 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 )
{
- // Don't change these from defaults unless explicitly told to.
- if ( use_full_range >= 0 )
- full_range = use_full_range;
- switch ( colorspace )
- {
- case 170:
- case 470:
- case 601:
- case 624:
- new_coefficients = sws_getCoefficients( SWS_CS_ITU601 );
- break;
- case 240:
- new_coefficients = sws_getCoefficients( SWS_CS_SMPTE240M );
- break;
- case 709:
- new_coefficients = sws_getCoefficients( SWS_CS_ITU709 );
- break;
- default:
- new_coefficients = coefficients;
- break;
- }
- sws_setColorspaceDetails( context, new_coefficients, full_range, new_coefficients, full_range,
- brightness, contrast, saturation );
+ 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;
}
-#endif
+ 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 );
}
-static void av_convert_image( uint8_t *out, uint8_t *in, int out_fmt, int in_fmt,
- int width, int height, int colorspace, int use_full_range )
+// 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;
-#ifdef SWSCALE
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
-#endif /* SWSCALE */
+ 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 );
-#ifdef SWSCALE
struct SwsContext *context = sws_getContext( width, height, in_fmt,
width, height, out_fmt, flags, NULL, NULL, NULL);
if ( context )
{
- set_luma_transfer( context, colorspace, use_full_range );
+ // 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 );
}
-#else
- img_convert( &output, out_fmt, &input, in_fmt, width, height );
-#endif
+ return error;
}
/** Do it :-).
if ( *format != 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 = -1;
+ int force_full_luma = 0;
- mlt_log_debug( NULL, "[filter avcolor_space] %s -> %s @ %dx%d space %d\n",
+ 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 );
+ width, height, colorspace, profile->colorspace );
int in_fmt = convert_mlt_to_av_cs( *format );
int out_fmt = convert_mlt_to_av_cs( output_format );
// 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" );
+ force_full_luma = mlt_properties_get_int( properties, "force_full_luma" );
mlt_properties_set( properties, "force_full_luma", NULL );
}
- av_convert_image( output, *image, out_fmt, in_fmt, width, height, colorspace, force_full_luma );
+ 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_frame_set_image( frame, output, size, mlt_pool_release );
return error;
}
-/* TODO: The below is not working because swscale does not have
- * adjustable coefficients yet for RGB->YUV */
+/* 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 )
{
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 )
{
return NULL;
}
}
-#else
- return NULL;
-#endif
-#endif
mlt_filter filter = mlt_filter_new( );
if ( filter != NULL )
filter->process = filter_process;
projects / mlt / blobdiff