static Effect* build_movit_chain( mlt_service service, mlt_frame frame, GlslChain *chain )
{
if ( service == (mlt_service) -1 ) {
mlt_producer producer = mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) );
MltInput* input = GlslManager::get_input( producer, frame );
GlslManager::set_input( producer, frame, NULL );
chain->effect_chain->add_input( input->get_input() );
chain->inputs.insert(std::make_pair( producer, input ) );
return input->get_input();
}
Effect* effect = GlslManager::get_effect( service, frame );
assert( effect );
GlslManager::set_effect( service, frame, NULL );
mlt_service input_a = GlslManager::get_effect_input( service, frame );
mlt_service input_b, input_c;
mlt_frame frame_b, frame_c;
GlslManager::get_effect_secondary_input( service, frame, &input_b, &frame_b );
GlslManager::get_effect_third_input( service, frame, &input_c, &frame_c );
Effect *effect_a = build_movit_chain( input_a, frame, chain );
if ( input_c && input_b ) {
Effect *effect_b = build_movit_chain( input_b, frame_b, chain );
Effect *effect_c = build_movit_chain( input_c, frame_c, chain );
chain->effect_chain->add_effect( effect, effect_a, effect_b, effect_c );
} else if ( input_b ) {
Effect *effect_b = build_movit_chain( input_b, frame_b, chain );
chain->effect_chain->add_effect( effect, effect_a, effect_b );
} else {
chain->effect_chain->add_effect( effect, effect_a );
}
chain->effects.insert(std::make_pair( service, effect ) );
return effect;
}
static int convert_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, mlt_image_format output_format )
{
// Nothing to do!
if ( *format == output_format )
return 0;
mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
mlt_log_debug( NULL, "filter_movit_convert: %s -> %s (%d)\n",
mlt_image_format_name( *format ), mlt_image_format_name( output_format ),
mlt_frame_get_position( frame ) );
// Use CPU if glsl not initialized or not supported.
GlslManager* glsl = GlslManager::get_instance();
if ( !glsl || !glsl->get_int("glsl_supported" ) )
return convert_on_cpu( frame, image, format, output_format );
// Do non-GL image conversions on a CPU-based image converter.
if ( *format != mlt_image_glsl && output_format != mlt_image_glsl && output_format != mlt_image_glsl_texture )
return convert_on_cpu( frame, image, format, output_format );
int error = 0;
int width = mlt_properties_get_int( properties, "width" );
int height = mlt_properties_get_int( properties, "height" );
GlslManager::get_instance()->lock_service( frame );
// If we're at the beginning of a series of Movit effects, store the input
// sent into the chain.
if ( output_format == mlt_image_glsl ) {
mlt_producer producer = mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) );
mlt_profile profile = mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) );
MltInput *input = create_input( properties, *format, profile->width, profile->height, width, height );
GlslManager::set_input( producer, frame, input );
uint8_t *img_copy = make_input_copy( *format, *image, width, height );
GlslManager::set_input_pixel_pointer( producer, frame, img_copy );
*image = (uint8_t *) -1;
mlt_frame_set_image( frame, *image, 0, NULL );
}
// If we're at the _end_ of a series of Movit effects, render the chain.
if ( *format == mlt_image_glsl ) {
mlt_service leaf_service = (mlt_service) *image;
if ( leaf_service == (mlt_service) -1 ) {
// Something on the way requested conversion to mlt_glsl,
// but never added an effect. Don't build a Movit chain;
// just do the conversion and we're done.
mlt_producer producer = mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) );
MltInput *input = GlslManager::get_input( producer, frame );
*image = GlslManager::get_input_pixel_pointer( producer, frame );
*format = input->get_format();
delete input;
GlslManager::get_instance()->unlock_service( frame );
return convert_on_cpu( frame, image, format, output_format );
}
// Construct the chain unless we already have a good one.
finalize_movit_chain( leaf_service, frame );
// Set per-frame parameters now that we know which Effect instances to set them on.
// (finalize_movit_chain may already have done this, though, but twice doesn't hurt.)
GlslChain *chain = GlslManager::get_chain( leaf_service );
set_movit_parameters( chain, leaf_service, frame );
error = movit_render( chain->effect_chain, frame, format, output_format, width, height, image );
dispose_pixel_pointers( chain, leaf_service, frame );
}
// If we've been asked to render some frame directly to a texture (without any
// effects in-between), we create a new mini-chain to do so.
if ( *format != mlt_image_glsl && output_format == mlt_image_glsl_texture ) {
// We might already have a texture from a previous conversion from mlt_image_glsl.
glsl_texture texture = (glsl_texture) mlt_properties_get_data( properties, "movit.convert.texture", NULL );
// XXX: requires a special property set on the frame by the app for now
// because we do not have reliable way to clear the texture property
// when a downstream filter has changed image.
if ( texture && mlt_properties_get_int( properties, "movit.convert.use_texture") ) {
*image = (uint8_t*) &texture->texture;
mlt_frame_set_image( frame, *image, 0, NULL );
} else {
// Use a separate chain to convert image in RAM to OpenGL texture.
// Use cached chain if available and compatible.
Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
EffectChain *chain = (EffectChain*) producer.get_data( "movit.convert.chain" );
MltInput *input = (MltInput*) producer.get_data( "movit.convert.input" );
int w = producer.get_int( "movit.convert.width" );
int h = producer.get_int( "movit.convert.height" );
mlt_image_format f = (mlt_image_format) producer.get_int( "movit.convert.format" );
if ( !chain || !input || width != w || height != h || *format != f ) {
chain = new EffectChain( width, height, GlslManager::get_instance()->get_resource_pool() );
input = create_input( properties, *format, width, height, width, height );
chain->add_input( input->get_input() );
chain->add_effect( new Mlt::VerticalFlip() );
ImageFormat movit_output_format;
movit_output_format.color_space = COLORSPACE_sRGB;
movit_output_format.gamma_curve = GAMMA_sRGB;
chain->add_output(movit_output_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
chain->set_dither_bits(8);
chain->finalize();
producer.set( "movit.convert.chain", chain, 0, (mlt_destructor) delete_chain );
producer.set( "movit.convert.input", input, 0, NULL );
producer.set( "movit.convert.width", width );
producer.set( "movit.convert.height", height );
producer.set( "movit.convert.format", *format );
}
if ( *format == mlt_image_yuv422 ) {
// We need to convert to planar, which make_input_copy() will do for us.
uint8_t *planar = make_input_copy( *format, *image, width, height );
input->set_pixel_data( planar );
error = movit_render( chain, frame, format, output_format, width, height, image );
mlt_pool_release( planar );
} else {
input->set_pixel_data( *image );
error = movit_render( chain, frame, format, output_format, width, height, image );
}
}
}
GlslManager::get_instance()->unlock_service( frame );
mlt_properties_set_int( properties, "format", output_format );
*format = output_format;
return error;
}
