2 * filter_movit_convert.cpp
3 * Copyright (C) 2013 Dan Dennedy <dan@dennedy.org>
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.
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.
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.
20 #include <framework/mlt.h>
25 #include "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"
32 static void yuv422_to_yuv422p( uint8_t *yuv422, uint8_t *yuv422p, int width, int height )
35 uint8_t *U = Y + width * height;
36 uint8_t *V = U + width * height / 2;
37 int n = width * height / 2 + 1;
46 static int convert_on_cpu( mlt_frame frame, uint8_t **image, mlt_image_format *format, mlt_image_format output_format )
49 mlt_filter cpu_csc = (mlt_filter) mlt_properties_get_data( MLT_FRAME_PROPERTIES( frame ), "cpu_csc", NULL );
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;
63 static void delete_chain( EffectChain* chain )
68 static int convert_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, mlt_image_format output_format )
71 if ( *format == output_format )
74 mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
76 mlt_log_debug( NULL, "filter_movit_convert: %s -> %s\n",
77 mlt_image_format_name( *format ), mlt_image_format_name( output_format ) );
79 // Use CPU if glsl not initialized or not supported.
80 GlslManager* glsl = GlslManager::get_instance();
81 if ( !glsl || !glsl->get_int("glsl_supported" ) )
82 return convert_on_cpu( frame, image, format, output_format );
84 // Do non-GL image conversions on a CPU-based image converter.
85 if ( *format != mlt_image_glsl && output_format != mlt_image_glsl && output_format != mlt_image_glsl_texture )
86 return convert_on_cpu( frame, image, format, output_format );
89 int width = mlt_properties_get_int( properties, "width" );
90 int height = mlt_properties_get_int( properties, "height" );
91 int img_size = mlt_image_format_size( *format, width, height, NULL );
92 mlt_producer producer = mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) );
93 mlt_service service = MLT_PRODUCER_SERVICE(producer);
94 GlslManager::get_instance()->lock_service( frame );
95 EffectChain* chain = GlslManager::get_chain( service );
96 MltInput* input = GlslManager::get_input( service );
98 if ( !chain || !input ) {
99 GlslManager::get_instance()->unlock_service( frame );
103 if ( *format != mlt_image_glsl ) {
104 bool finalize_chain = false;
105 if ( output_format == mlt_image_glsl_texture ) {
106 // We might already have a texture from a previous conversion from mlt_image_glsl.
107 glsl_texture texture = (glsl_texture) mlt_properties_get_data( properties, "movit.convert.texture", NULL );
108 // XXX: requires a special property set on the frame by the app for now
109 // because we do not have reliable way to clear the texture property
110 // when a downstream filter has changed image.
111 if ( texture && mlt_properties_get_int( properties, "movit.convert.use_texture") ) {
112 *image = (uint8_t*) &texture->texture;
113 mlt_frame_set_image( frame, *image, 0, NULL );
114 mlt_properties_set_int( properties, "format", output_format );
115 *format = output_format;
116 GlslManager::get_instance()->unlock_service( frame );
119 // Use a separate chain to convert image in RAM to OpenGL texture.
120 // Use cached chain if available and compatible.
121 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
122 chain = (EffectChain*) producer.get_data( "movit.convert.chain" );
123 input = (MltInput*) producer.get_data( "movit.convert.input" );
124 int w = producer.get_int( "movit.convert.width" );
125 int h = producer.get_int( "movit.convert.height" );
126 mlt_image_format f = (mlt_image_format) producer.get_int( "movit.convert.format" );
127 if ( !chain || width != w || height != h || output_format != f ) {
128 chain = new EffectChain( width, height );
129 input = new MltInput( width, height );
130 chain->add_input( input );
131 chain->add_effect( new Mlt::VerticalFlip() );
132 finalize_chain = true;
133 producer.set( "movit.convert.chain", chain, 0, (mlt_destructor) delete_chain );
134 producer.set( "movit.convert.width", width );
135 producer.set( "movit.convert.height", height );
136 producer.set( "movit.convert.width", output_format );
140 if ( *format == mlt_image_rgb24a || *format == mlt_image_opengl ) {
141 input->useFlatInput( chain, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, width, height );
142 input->set_pixel_data( *image );
144 else if ( *format == mlt_image_rgb24 ) {
145 input->useFlatInput( chain, FORMAT_RGB, width, height );
146 input->set_pixel_data( *image );
148 else if ( *format == mlt_image_yuv420p ) {
149 ImageFormat image_format;
150 YCbCrFormat ycbcr_format;
151 if ( 709 == mlt_properties_get_int( properties, "colorspace" ) ) {
152 image_format.color_space = COLORSPACE_REC_709;
153 image_format.gamma_curve = GAMMA_REC_709;
154 ycbcr_format.luma_coefficients = YCBCR_REC_709;
155 } else if ( 576 == mlt_properties_get_int( properties, "height" ) ) {
156 image_format.color_space = COLORSPACE_REC_601_625;
157 image_format.gamma_curve = GAMMA_REC_601;
158 ycbcr_format.luma_coefficients = YCBCR_REC_601;
160 image_format.color_space = COLORSPACE_REC_601_525;
161 image_format.gamma_curve = GAMMA_REC_601;
162 ycbcr_format.luma_coefficients = YCBCR_REC_601;
164 ycbcr_format.full_range = mlt_properties_get_int( properties, "force_full_luma" );
165 ycbcr_format.chroma_subsampling_x = ycbcr_format.chroma_subsampling_y = 2;
166 // TODO: make new frame properties set by producers
167 ycbcr_format.cb_x_position = ycbcr_format.cr_x_position = 0.0f;
168 ycbcr_format.cb_y_position = ycbcr_format.cr_y_position = 0.5f;
169 input->useYCbCrInput( chain, image_format, ycbcr_format, width, height );
170 input->set_pixel_data( *image );
172 else if ( *format == mlt_image_yuv422 ) {
173 ImageFormat image_format;
174 YCbCrFormat ycbcr_format;
175 if ( 709 == mlt_properties_get_int( properties, "colorspace" ) ) {
176 image_format.color_space = COLORSPACE_REC_709;
177 image_format.gamma_curve = GAMMA_REC_709;
178 ycbcr_format.luma_coefficients = YCBCR_REC_709;
179 } else if ( 576 == height ) {
180 image_format.color_space = COLORSPACE_REC_601_625;
181 image_format.gamma_curve = GAMMA_REC_601;
182 ycbcr_format.luma_coefficients = YCBCR_REC_601;
184 image_format.color_space = COLORSPACE_REC_601_525;
185 image_format.gamma_curve = GAMMA_REC_601;
186 ycbcr_format.luma_coefficients = YCBCR_REC_601;
188 ycbcr_format.full_range = mlt_properties_get_int( properties, "force_full_luma" );
189 ycbcr_format.chroma_subsampling_x = 2;
190 ycbcr_format.chroma_subsampling_y = 1;
191 // TODO: make new frame properties set by producers
192 ycbcr_format.cb_x_position = ycbcr_format.cr_x_position = 0.0f;
193 ycbcr_format.cb_y_position = ycbcr_format.cr_y_position = 0.5f;
194 input->useYCbCrInput( chain, image_format, ycbcr_format, width, height );
196 // convert chunky to planar
197 uint8_t* planar = (uint8_t*) mlt_pool_alloc( img_size );
198 yuv422_to_yuv422p( *image, planar, width, height );
199 input->set_pixel_data( planar );
200 mlt_frame_set_image( frame, planar, img_size, mlt_pool_release );
202 // Finalize the separate conversion chain if needed.
203 if ( finalize_chain )
207 if ( output_format != mlt_image_glsl ) {
208 glsl_fbo fbo = glsl->get_fbo( width, height );
210 if ( output_format == mlt_image_glsl_texture ) {
211 glsl_texture texture = glsl->get_texture( width, height, GL_RGBA );
213 glBindFramebuffer( GL_FRAMEBUFFER, fbo->fbo );
215 glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture->texture, 0 );
217 glBindFramebuffer( GL_FRAMEBUFFER, 0 );
220 GlslManager::render( service, chain, fbo->fbo, width, height );
224 glBindFramebuffer( GL_FRAMEBUFFER, 0 );
227 *image = (uint8_t*) &texture->texture;
228 mlt_frame_set_image( frame, *image, 0, NULL );
229 mlt_properties_set_data( properties, "movit.convert.texture", texture, 0,
230 (mlt_destructor) GlslManager::release_texture, NULL );
231 mlt_properties_set_int( properties, "format", output_format );
232 *format = output_format;
235 // Use a PBO to hold the data we read back with glReadPixels()
236 // (Intel/DRI goes into a slow path if we don't read to PBO)
237 GLenum gl_format = ( output_format == mlt_image_rgb24a || output_format == mlt_image_opengl )?
239 img_size = width * height * ( gl_format == GL_RGB? 3 : 4 );
240 glsl_pbo pbo = glsl->get_pbo( img_size );
241 glsl_texture texture = glsl->get_texture( width, height, gl_format );
243 if ( fbo && pbo && texture ) {
245 glBindFramebuffer( GL_FRAMEBUFFER, fbo->fbo );
247 glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture->texture, 0 );
249 glBindFramebuffer( GL_FRAMEBUFFER, 0 );
252 GlslManager::render( service, chain, fbo->fbo, width, height );
255 glBindBuffer( GL_PIXEL_PACK_BUFFER_ARB, pbo->pbo );
257 glBufferData( GL_PIXEL_PACK_BUFFER_ARB, img_size, NULL, GL_STREAM_READ );
259 glReadPixels( 0, 0, width, height, gl_format, GL_UNSIGNED_BYTE, BUFFER_OFFSET(0) );
263 uint8_t* buf = (uint8_t*) glMapBuffer( GL_PIXEL_PACK_BUFFER_ARB, GL_READ_ONLY );
265 *image = (uint8_t*) mlt_pool_alloc( img_size );
266 mlt_frame_set_image( frame, *image, img_size, mlt_pool_release );
267 memcpy( *image, buf, img_size );
269 if ( output_format == mlt_image_yuv422 || output_format == mlt_image_yuv420p ) {
270 *format = mlt_image_rgb24;
271 error = convert_on_cpu( frame, image, format, output_format );
274 // Release PBO and FBO
275 glUnmapBuffer( GL_PIXEL_PACK_BUFFER_ARB );
277 glBindBuffer( GL_PIXEL_PACK_BUFFER_ARB, 0 );
279 glBindFramebuffer( GL_FRAMEBUFFER, 0 );
281 glBindTexture( GL_TEXTURE_2D, 0 );
283 mlt_properties_set_data( properties, "movit.convert.texture", texture, 0,
284 (mlt_destructor) GlslManager::release_texture, NULL);
286 mlt_properties_set_int( properties, "format", output_format );
287 *format = output_format;
293 if ( fbo ) GlslManager::release_fbo( fbo );
296 mlt_properties_set_int( properties, "format", output_format );
297 *format = output_format;
299 GlslManager::get_instance()->unlock_service( frame );
304 static mlt_frame process( mlt_filter filter, mlt_frame frame )
306 // Set a default colorspace on the frame if not yet set by the producer.
307 // The producer may still change it during get_image.
308 // This way we do not have to modify each producer to set a valid colorspace.
309 mlt_properties properties = MLT_FRAME_PROPERTIES(frame);
310 if ( mlt_properties_get_int( properties, "colorspace" ) <= 0 )
311 mlt_properties_set_int( properties, "colorspace", mlt_service_profile( MLT_FILTER_SERVICE(filter) )->colorspace );
313 frame->convert_image = convert_image;
315 mlt_filter cpu_csc = (mlt_filter) mlt_properties_get_data( MLT_FILTER_PROPERTIES( filter ), "cpu_csc", NULL );
316 mlt_properties_inc_ref( MLT_FILTER_PROPERTIES(cpu_csc) );
317 mlt_properties_set_data( properties, "cpu_csc", cpu_csc, 0,
318 (mlt_destructor) mlt_filter_close, NULL );
323 static mlt_filter create_filter( mlt_profile profile, char *effect )
325 mlt_filter filter = NULL;
326 char *id = strdup( effect );
327 char *arg = strchr( id, ':' );
331 // The swscale and avcolor_space filters require resolution as arg to test compatibility
332 if ( !strcmp( effect, "avcolor_space" ) )
333 arg = (char*) profile->width;
335 filter = mlt_factory_filter( profile, id, arg );
337 mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter ), "_loader", 1 );
344 mlt_filter filter_movit_convert_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
346 mlt_filter filter = NULL;
347 GlslManager* glsl = GlslManager::get_instance();
349 if ( glsl && ( filter = mlt_filter_new() ) )
351 mlt_filter cpu_csc = create_filter( profile, "avcolor_space" );
353 cpu_csc = create_filter( profile, "imageconvert" );
355 mlt_properties_set_data( MLT_FILTER_PROPERTIES( filter ), "cpu_csc", cpu_csc, 0,
356 (mlt_destructor) mlt_filter_close, NULL );
357 filter->process = process;