git.sesse.net Git - mlt/blob - src/modules/opengl/filter_movit_convert.cpp

   1 /*
   2  * filter_movit_convert.cpp
   3  * Copyright (C) 2013 Dan Dennedy <dan@dennedy.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software Foundation,
  17  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include <framework/mlt.h>
  21 #include <string.h>
  22 #include <stdlib.h>
  23 #include <assert.h>
  24
  25 #include "filter_glsl_manager.h"
  26 #include <movit/effect_chain.h>
  27 #include <movit/util.h>
  28 #include "mlt_movit_input.h"
  29 #include <mlt++/MltProducer.h>
  30 #include "mlt_flip_effect.h"
  31
  32 static void yuv422_to_yuv422p( uint8_t *yuv422, uint8_t *yuv422p, int width, int height )
  33 {
  34         uint8_t *Y = yuv422p;
  35         uint8_t *U = Y + width * height;
  36         uint8_t *V = U + width * height / 2;
  37         int n = width * height / 2 + 1;
  38         while ( --n ) {
  39                 *Y++ = *yuv422++;
  40                 *U++ = *yuv422++;
  41                 *Y++ = *yuv422++;
  42                 *V++ = *yuv422++;
  43         }
  44 }
  45
  46 static int convert_on_cpu( mlt_frame frame, uint8_t **image, mlt_image_format *format, mlt_image_format output_format )
  47 {
  48         int error = 0;
  49         mlt_filter cpu_csc = (mlt_filter) mlt_properties_get_data( MLT_FRAME_PROPERTIES( frame ), "cpu_csc", NULL );
  50         if ( cpu_csc ) {
  51                 int (* save_fp )( mlt_frame self, uint8_t **image, mlt_image_format *input, mlt_image_format output )
  52                         = frame->convert_image;
  53                 frame->convert_image = NULL;
  54                 mlt_filter_process( cpu_csc, frame );
  55                 error = frame->convert_image( frame, image, format, output_format );
  56                 frame->convert_image = save_fp;
  57         } else {
  58                 error = 1;
  59         }
  60         return error;
  61 }
  62
  63 static void delete_chain( EffectChain* chain )
  64 {
  65         delete chain;
  66 }
  67
  68 static void get_format_from_properties( mlt_properties properties, ImageFormat* image_format, YCbCrFormat* ycbcr_format )
  69 {
  70         switch ( mlt_properties_get_int( properties, "colorspace" ) ) {
  71         case 601:
  72                 ycbcr_format->luma_coefficients = YCBCR_REC_601;
  73                 break;
  74         case 709:
  75         default:
  76                 ycbcr_format->luma_coefficients = YCBCR_REC_709;
  77                 break;
  78         }
  79
  80         switch ( mlt_properties_get_int( properties, "color_primaries" ) ) {
  81         case 601625:
  82                 image_format->color_space = COLORSPACE_REC_601_625;
  83                 break;
  84         case 601525:
  85                 image_format->color_space = COLORSPACE_REC_601_525;
  86                 break;
  87         case 709:
  88         default:
  89                 image_format->color_space = COLORSPACE_REC_709;
  90                 break;
  91         }
  92
  93         image_format->gamma_curve = GAMMA_REC_709;
  94
  95         if ( mlt_properties_get_int( properties, "force_full_luma" ) ) {
  96                 ycbcr_format->full_range = true;
  97         } else {
  98                 ycbcr_format->full_range = ( mlt_properties_get_int( properties, "full_luma" ) == 1 );
  99         }
 100
 101         // TODO: make new frame properties set by producers
 102         ycbcr_format->cb_x_position = ycbcr_format->cr_x_position = 0.0f;
 103         ycbcr_format->cb_y_position = ycbcr_format->cr_y_position = 0.5f;
 104 }
 105
 106 static int convert_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, mlt_image_format output_format )
 107 {
 108         // Nothing to do!
 109         if ( *format == output_format )
 110                 return 0;
 111
 112         mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
 113
 114         mlt_log_debug( NULL, "filter_movit_convert: %s -> %s (%d)\n",
 115                 mlt_image_format_name( *format ), mlt_image_format_name( output_format ),
 116                 mlt_frame_get_position( frame ) );
 117
 118         // Use CPU if glsl not initialized or not supported.
 119         GlslManager* glsl = GlslManager::get_instance();
 120         if ( !glsl || !glsl->get_int("glsl_supported" ) )
 121                 return convert_on_cpu( frame, image, format, output_format );
 122
 123         // Do non-GL image conversions on a CPU-based image converter.
 124         if ( *format != mlt_image_glsl && output_format != mlt_image_glsl && output_format != mlt_image_glsl_texture )
 125                 return convert_on_cpu( frame, image, format, output_format );
 126
 127         int error = 0;
 128         int width = mlt_properties_get_int( properties, "width" );
 129         int height = mlt_properties_get_int( properties, "height" );
 130         int img_size = mlt_image_format_size( *format, width, height, NULL );
 131         mlt_producer producer = mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) );
 132         mlt_service service = MLT_PRODUCER_SERVICE(producer);
 133         GlslManager::get_instance()->lock_service( frame );
 134         EffectChain* chain = GlslManager::get_chain( service );
 135         MltInput* input = GlslManager::get_input( service );
 136
 137         if ( !chain || !input ) {
 138                 GlslManager::get_instance()->unlock_service( frame );
 139                 return 2;
 140         }
 141
 142         if ( *format != mlt_image_glsl ) {
 143                 bool finalize_chain = false;
 144                 if ( output_format == mlt_image_glsl_texture ) {
 145                         // We might already have a texture from a previous conversion from mlt_image_glsl.
 146                         glsl_texture texture = (glsl_texture) mlt_properties_get_data( properties, "movit.convert.texture", NULL );
 147                         // XXX: requires a special property set on the frame by the app for now
 148                         // because we do not have reliable way to clear the texture property
 149                         // when a downstream filter has changed image.
 150                         if ( texture && mlt_properties_get_int( properties, "movit.convert.use_texture") ) {
 151                                 *image = (uint8_t*) &texture->texture;
 152                                 mlt_frame_set_image( frame, *image, 0, NULL );
 153                                 mlt_properties_set_int( properties, "format", output_format );
 154                                 *format = output_format;
 155                                 GlslManager::get_instance()->unlock_service( frame );
 156                                 return error;
 157                         } else {
 158                                 // Use a separate chain to convert image in RAM to OpenGL texture.
 159                                 // Use cached chain if available and compatible.
 160                                 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
 161                                 chain = (EffectChain*) producer.get_data( "movit.convert.chain" );
 162                                 input = (MltInput*) producer.get_data( "movit.convert.input" );
 163                                 int w = producer.get_int( "movit.convert.width" );
 164                                 int h = producer.get_int( "movit.convert.height" );
 165                                 mlt_image_format f = (mlt_image_format) producer.get_int( "movit.convert.format" );
 166                                 if ( !chain || width != w || height != h || output_format != f ) {
 167                                         chain = new EffectChain( width, height );
 168                                         input = new MltInput( width, height );
 169                                         chain->add_input( input );
 170                                         chain->add_effect( new Mlt::VerticalFlip() );
 171                                         finalize_chain = true;
 172                                         producer.set( "movit.convert.chain", chain, 0, (mlt_destructor) delete_chain );
 173                                         producer.set( "movit.convert.input", input, 0 );
 174                                         producer.set( "movit.convert.width", width );
 175                                         producer.set( "movit.convert.height", height );
 176                                         producer.set( "movit.convert.format", output_format );
 177                                 }
 178                         }
 179                 }
 180                 if ( *format == mlt_image_rgb24a || *format == mlt_image_opengl ) {
 181                         // TODO: Get the color space if available.
 182                         input->useFlatInput( chain, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, width, height );
 183                         input->set_pixel_data( *image );
 184                 }
 185                 else if ( *format == mlt_image_rgb24 ) {
 186                         // TODO: Get the color space if available.
 187                         input->useFlatInput( chain, FORMAT_RGB, width, height );
 188                         input->set_pixel_data( *image );
 189                 }
 190                 else if ( *format == mlt_image_yuv420p ) {
 191                         ImageFormat image_format;
 192                         YCbCrFormat ycbcr_format;
 193                         get_format_from_properties( properties, &image_format, &ycbcr_format );
 194                         ycbcr_format.chroma_subsampling_x = ycbcr_format.chroma_subsampling_y = 2;
 195                         input->useYCbCrInput( chain, image_format, ycbcr_format, width, height );
 196                         input->set_pixel_data( *image );
 197                 }
 198                 else if ( *format == mlt_image_yuv422 ) {
 199                         ImageFormat image_format;
 200                         YCbCrFormat ycbcr_format;
 201                         get_format_from_properties( properties, &image_format, &ycbcr_format );
 202                         ycbcr_format.chroma_subsampling_x = 2;
 203                         ycbcr_format.chroma_subsampling_y = 1;
 204                         input->useYCbCrInput( chain, image_format, ycbcr_format, width, height );
 205
 206                         // convert chunky to planar
 207                         uint8_t* planar = (uint8_t*) mlt_pool_alloc( img_size );
 208                         yuv422_to_yuv422p( *image, planar, width, height );
 209                         input->set_pixel_data( planar );
 210                         mlt_frame_set_image( frame, planar, img_size, mlt_pool_release );
 211                 }
 212                 // Finalize the separate conversion chain if needed.
 213                 if ( finalize_chain )
 214                         chain->finalize();
 215         }
 216
 217         if ( output_format != mlt_image_glsl ) {
 218
 219                 if ( output_format == mlt_image_glsl_texture ) {
 220                         error = glsl->render_frame_texture( service, frame, width, height, image );
 221                 }
 222                 else {
 223                         error = glsl->render_frame_rgba( service, frame, width, height, image );
 224                         if ( !error && output_format != mlt_image_rgb24a ) {
 225                                 *format = mlt_image_rgb24a;
 226                                 error = convert_on_cpu( frame, image, format, output_format );
 227                         }
 228                 }
 229                 mlt_properties_set_int( properties, "format", output_format );
 230                 *format = output_format;
 231         }
 232         else {
 233                 mlt_properties_set_int( properties, "format", output_format );
 234                 *format = output_format;
 235         }
 236         GlslManager::get_instance()->unlock_service( frame );
 237
 238         return error;
 239 }
 240
 241 static mlt_frame process( mlt_filter filter, mlt_frame frame )
 242 {
 243         // Set a default colorspace on the frame if not yet set by the producer.
 244         // The producer may still change it during get_image.
 245         // This way we do not have to modify each producer to set a valid colorspace.
 246         mlt_properties properties = MLT_FRAME_PROPERTIES(frame);
 247         if ( mlt_properties_get_int( properties, "colorspace" ) <= 0 )
 248                 mlt_properties_set_int( properties, "colorspace", mlt_service_profile( MLT_FILTER_SERVICE(filter) )->colorspace );
 249
 250         frame->convert_image = convert_image;
 251
 252         mlt_filter cpu_csc = (mlt_filter) mlt_properties_get_data( MLT_FILTER_PROPERTIES( filter ), "cpu_csc", NULL );
 253         mlt_properties_inc_ref( MLT_FILTER_PROPERTIES(cpu_csc) );
 254         mlt_properties_set_data( properties, "cpu_csc", cpu_csc, 0,
 255                 (mlt_destructor) mlt_filter_close, NULL );
 256
 257         return frame;
 258 }
 259
 260 static mlt_filter create_filter( mlt_profile profile, const char *effect )
 261 {
 262         mlt_filter filter;
 263         char *id = strdup( effect );
 264         char *arg = strchr( id, ':' );
 265         if ( arg != NULL )
 266                 *arg ++ = '\0';
 267
 268         // The swscale and avcolor_space filters require resolution as arg to test compatibility
 269         if ( !strcmp( effect, "avcolor_space" ) )
 270                 filter = mlt_factory_filter( profile, id, &profile->width );
 271         else
 272                 filter = mlt_factory_filter( profile, id, arg );
 273         if ( filter )
 274                 mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter ), "_loader", 1 );
 275         free( id );
 276         return filter;
 277 }
 278
 279 extern "C" {
 280
 281 mlt_filter filter_movit_convert_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
 282 {
 283         mlt_filter filter = NULL;
 284         GlslManager* glsl = GlslManager::get_instance();
 285
 286         if ( glsl && ( filter = mlt_filter_new() ) )
 287         {
 288 #ifdef WIN32
 289                 // XXX avcolor_space is crashing on Windows in this context!
 290                 mlt_filter cpu_csc = NULL;
 291 #else
 292                 mlt_filter cpu_csc = create_filter( profile, "avcolor_space" );
 293 #endif
 294                 if ( !cpu_csc )
 295                         cpu_csc = create_filter( profile, "imageconvert" );
 296                 if ( cpu_csc )
 297                         mlt_properties_set_data( MLT_FILTER_PROPERTIES( filter ), "cpu_csc", cpu_csc, 0,
 298                                 (mlt_destructor) mlt_filter_close, NULL );
 299                 filter->process = process;
 300         }
 301         return filter;
 302 }
 303
 304 }