return mlt_deque_count( this->stack_image ) == 0 || mlt_properties_get_int( MLT_FRAME_PROPERTIES( this ), "test_image" );
}
-/** Check if we have a way to derive something than test audio.
+/** Check if we have a way to derive something other than test audio.
*/
int mlt_frame_is_test_audio( mlt_frame this )
{
- return this->get_audio == NULL || mlt_properties_get_int( MLT_FRAME_PROPERTIES( this ), "test_audio" );
+ return mlt_deque_count( this->stack_audio ) == 0 || mlt_properties_get_int( MLT_FRAME_PROPERTIES( this ), "test_audio" );
}
/** Get the aspect ratio of the frame.
return mlt_deque_pop_back( this->stack_image );
}
+/** Push a service.
+*/
+
+int mlt_frame_push_service_int( mlt_frame this, int that )
+{
+ return mlt_deque_push_back_int( this->stack_image, that );
+}
+
+/** Pop a service.
+*/
+
+int mlt_frame_pop_service_int( mlt_frame this )
+{
+ return mlt_deque_pop_back_int( this->stack_image );
+}
+
/** Push an audio item on the stack.
*/
return this->stack_service;
}
+/** Replace image stack with the information provided.
+
+ This might prove to be unreliable and restrictive - the idea is that a transition
+ which normally uses two images may decide to only use the b frame (ie: in the case
+ of a composite where the b frame completely obscures the a frame).
+
+ The image must be writable and the destructor for the image itself must be taken
+ care of on another frame and that frame cannot have a replace applied to it...
+ Further it assumes that no alpha mask is in use.
+
+ For these reasons, it can only be used in a specific situation - when you have
+ multiple tracks each with their own transition and these transitions are applied
+ in a strictly reversed order (ie: highest numbered [lowest track] is processed
+ first).
+
+ More reliable approach - the cases should be detected during the process phase
+ and the upper tracks should simply not be invited to stack...
+*/
+
+void mlt_frame_replace_image( mlt_frame this, uint8_t *image, mlt_image_format format, int width, int height )
+{
+ // Remove all items from the stack
+ while( mlt_deque_pop_back( this->stack_image ) ) ;
+
+ // Update the information
+ mlt_properties_set_data( MLT_FRAME_PROPERTIES( this ), "image", image, 0, NULL, NULL );
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( this ), "width", width );
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( this ), "height", height );
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( this ), "format", format );
+ this->get_alpha_mask = NULL;
+}
+
+/** Get the image associated to the frame.
+*/
+
int mlt_frame_get_image( mlt_frame this, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
{
mlt_properties properties = MLT_FRAME_PROPERTIES( this );
mlt_get_image get_image = mlt_frame_pop_get_image( this );
mlt_producer producer = mlt_properties_get_data( properties, "test_card_producer", NULL );
+ int error = 0;
- *width = *width >> 1 << 1;
-
if ( get_image != NULL )
{
- int error = 0;
+ mlt_properties_set_int( properties, "image_count", mlt_properties_get_int( properties, "image_count" ) - 1 );
mlt_position position = mlt_frame_get_position( this );
error = get_image( this, buffer, format, width, height, writable );
+ mlt_properties_set_int( properties, "width", *width );
+ mlt_properties_set_int( properties, "height", *height );
+ mlt_properties_set_int( properties, "format", *format );
mlt_frame_set_position( this, position );
- return error;
}
else if ( mlt_properties_get_data( properties, "image", NULL ) != NULL )
{
- *format = mlt_image_yuv422;
+ *format = mlt_properties_get_int( properties, "format" );
*buffer = mlt_properties_get_data( properties, "image", NULL );
*width = mlt_properties_get_int( properties, "width" );
*height = mlt_properties_get_int( properties, "height" );
mlt_properties_set_data( properties, "image", *buffer, *width * *height * 2, NULL, NULL );
mlt_properties_set_int( properties, "width", *width );
mlt_properties_set_int( properties, "height", *height );
+ mlt_properties_set_int( properties, "format", *format );
mlt_properties_set_double( properties, "aspect_ratio", mlt_frame_get_aspect_ratio( test_frame ) );
}
else
*height = *height == 0 ? 576 : *height;
size = *width * *height;
+ mlt_properties_set_int( properties, "format", *format );
mlt_properties_set_int( properties, "width", *width );
mlt_properties_set_int( properties, "height", *height );
- mlt_properties_set_int( properties, "aspect_ratio", 1 );
+ mlt_properties_set_int( properties, "aspect_ratio", 0 );
switch( *format )
{
memset( *buffer, 255, size );
break;
case mlt_image_rgb24a:
+ case mlt_image_opengl:
size *= 4;
size += *width * 4;
*buffer = mlt_pool_alloc( size );
mlt_properties_set_int( properties, "test_image", 1 );
}
- return 0;
+ mlt_properties_set_int( properties, "scaled_width", *width );
+ mlt_properties_set_int( properties, "scaled_height", *height );
+
+ return error;
}
uint8_t *mlt_frame_get_alpha_mask( mlt_frame this )
{
- if ( this != NULL && this->get_alpha_mask != NULL )
- return this->get_alpha_mask( this );
- return this == NULL ? NULL : mlt_properties_get_data( &this->parent, "alpha", NULL );
+ uint8_t *alpha = NULL;
+ if ( this != NULL )
+ {
+ if ( this->get_alpha_mask != NULL )
+ alpha = this->get_alpha_mask( this );
+ if ( alpha == NULL )
+ alpha = mlt_properties_get_data( &this->parent, "alpha", NULL );
+ if ( alpha == NULL )
+ {
+ int size = mlt_properties_get_int( &this->parent, "scaled_width" ) * mlt_properties_get_int( &this->parent, "scaled_height" );
+ alpha = mlt_pool_alloc( size );
+ memset( alpha, 255, size );
+ mlt_properties_set_data( &this->parent, "alpha", alpha, size, mlt_pool_release, NULL );
+ }
+ }
+ return alpha;
}
int mlt_frame_get_audio( mlt_frame this, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
{
+ mlt_get_audio get_audio = mlt_frame_pop_audio( this );
mlt_properties properties = MLT_FRAME_PROPERTIES( this );
int hide = mlt_properties_get_int( properties, "test_audio" );
- if ( hide == 0 && this->get_audio != NULL )
+ if ( hide == 0 && get_audio != NULL )
{
mlt_position position = mlt_frame_get_position( this );
- this->get_audio( this, buffer, format, frequency, channels, samples );
+ get_audio( this, buffer, format, frequency, channels, samples );
mlt_frame_set_position( this, position );
}
else if ( mlt_properties_get_data( properties, "audio", NULL ) )
if ( input != NULL && ( iwidth != owidth || iheight != oheight ) && ( owidth > 6 && oheight > 6 ) )
{
- iwidth = iwidth - ( iwidth % 2 );
- owidth = owidth - ( owidth % 2 );
+ uint8_t *in_line = input;
+ uint8_t *out_line;
output = mlt_pool_alloc( owidth * oheight );
+ memset( output, 0, owidth * oheight );
- // Coordinates (0,0 is middle of output)
- int y;
-
- // Calculate ranges
- int out_x_range = owidth / 2;
- int out_y_range = oheight / 2;
- int in_x_range = iwidth / 2 < out_x_range ? iwidth / 2 : out_x_range;
- int in_y_range = iheight / 2 < out_y_range ? iheight / 2 : out_y_range;
-
- // Output pointers
- uint8_t *out_line = output;
- uint8_t *out_ptr = out_line;
-
- // Calculate a middle and possibly invalid pointer in the input
- uint8_t *in_middle = input + iwidth * ( iheight / 2 ) + ( iwidth / 2 );
- int in_line = - in_y_range * iwidth - in_x_range;
-
- int elements;
-
- // Fill whole section with black
- y = out_y_range - ( iheight / 2 );
- int blank_elements = owidth * y;
- elements = blank_elements;
- while ( elements -- )
- *out_line ++ = 0;
-
- int active_width = iwidth;
- int inactive_width = out_x_range - in_x_range;
- uint8_t *p = NULL;
- uint8_t *end = NULL;
+ out_line = output + ( ( oheight - iheight ) / 2 ) * owidth;
+ out_line += 2 * ( int )( ( owidth - iwidth ) / 2 );
// Loop for the entirety of our output height.
while ( iheight -- )
{
- // Start at the beginning of the line
- out_ptr = out_line;
-
- // Fill the outer part with black
- elements = inactive_width;
- while ( elements -- )
- *out_ptr ++ = 0;
-
// We're in the input range for this row.
- p = in_middle + in_line;
- end = out_ptr + active_width;
- while ( out_ptr != end )
- *out_ptr ++ = *p ++;
-
- // Fill the outer part with black
- elements = inactive_width;
- while ( elements -- )
- *out_ptr ++ = 0;
-
+ memcpy( out_line, input, iwidth );
+
// Move to next input line
in_line += iwidth;
// Move to next output line
out_line += owidth;
}
-
- // Fill whole section with black
- elements = blank_elements;
- while ( elements -- )
- *out_line ++ = 0;
}
return output;
int istride = iwidth * 2;
int ostride = owidth * 2;
- iwidth = iwidth - ( iwidth % 2 );
- owidth = owidth - ( owidth % 2 );
- //iheight = iheight - ( iheight % 2 );
- //oheight = oheight - ( oheight % 2 );
-
// Optimisation point
if ( output == NULL || input == NULL || ( owidth <= 6 || oheight <= 6 || iwidth <= 6 || oheight <= 6 ) )
{
return;
}
- // Coordinates (0,0 is middle of output)
- int y;
-
- // Calculate ranges
- int out_x_range = owidth / 2;
- int out_y_range = oheight / 2;
- int in_x_range = iwidth / 2 < out_x_range ? iwidth / 2 : out_x_range;
- int in_y_range = iheight / 2 < out_y_range ? iheight / 2 : out_y_range;
+ uint8_t *in_line = input;
+ uint8_t *out_line;
- // Output pointers
- uint8_t *out_line = output;
- uint8_t *out_ptr = out_line;
+ int size = owidth * oheight;
+ uint8_t *p = output;
- // Calculate a middle and possibly invalid pointer in the input
- uint8_t *in_middle = input + istride * ( iheight / 2 ) + iwidth;
- int in_line = - in_y_range * istride - in_x_range * 2;
-
- int elements;
-
- // Fill whole section with black
- y = out_y_range - ( iheight / 2 );
- int blank_elements = ostride * y / 2;
- elements = blank_elements;
- while ( elements -- )
+ while( size -- )
{
- *out_line ++ = 16;
- *out_line ++ = 128;
- }
-
- int active_width = 2 * iwidth;
- int left_inactive_width = out_x_range - in_x_range;
- int right_inactive_width = left_inactive_width;
- uint8_t *p = NULL;
- uint8_t *end = NULL;
-
- if ( in_line % 4 )
- {
- active_width -= 2;
- in_middle += 2;
- right_inactive_width += 2;
+ *p ++ = 16;
+ *p ++ = 128;
}
+ out_line = output + ( ( oheight - iheight ) / 2 ) * ostride;
+ out_line += 4 * ( int )( ( owidth - iwidth ) / 4 );
+
// Loop for the entirety of our output height.
while ( iheight -- )
{
- // Start at the beginning of the line
- out_ptr = out_line;
-
- // Fill the outer part with black
- elements = left_inactive_width;
- while ( elements -- )
- {
- *out_ptr ++ = 16;
- *out_ptr ++ = 128;
- }
-
// We're in the input range for this row.
- p = in_middle + in_line;
- end = out_ptr + active_width;
- while ( out_ptr != end )
- {
- *out_ptr ++ = *p ++;
- *out_ptr ++ = *p ++;
- }
+ memcpy( out_line, in_line, istride );
- // Fill the outer part with black
- elements = right_inactive_width;
- while ( elements -- )
- {
- *out_ptr ++ = 16;
- *out_ptr ++ = 128;
- }
+ // Move to next input line
+ in_line += istride;
- // Move to next input line
- in_line += istride;
-
- // Move to next output line
- out_line += ostride;
+ // Move to next output line
+ out_line += ostride;
}
-
- // Fill whole section with black
- elements = blank_elements;
- while ( elements -- )
- {
- *out_line ++ = 16;
- *out_line ++ = 128;
- }
}
/** A resizing function for yuv422 frames - this does not rescale, but simply
int i, j;
double d = 0, s = 0;
- mlt_frame_get_audio( this, &dest, format, &frequency_dest, &channels_dest, &samples_dest );
mlt_frame_get_audio( that, &src, format, &frequency_src, &channels_src, &samples_src );
+ mlt_frame_get_audio( this, &dest, format, &frequency_dest, &channels_dest, &samples_dest );
int silent = mlt_properties_get_int( MLT_FRAME_PROPERTIES( this ), "silent_audio" );
mlt_properties_set_int( MLT_FRAME_PROPERTIES( this ), "silent_audio", 0 );
return ret;
}
+/* Will this break when mlt_position is converted to double? -Zach */
int mlt_sample_calculator( float fps, int frequency, int64_t position )
{
int samples = 0;
return samples;
}
+
+int64_t mlt_sample_calculator_to_now( float fps, int frequency, int64_t frame )
+{
+ int64_t samples = 0;
+
+ // TODO: Correct rules for NTSC and drop the * 100 hack
+ if ( ( int )( fps * 100 ) == 2997 )
+ {
+ samples = ( ( double )( frame * frequency ) / 30 );
+ switch( frequency )
+ {
+ case 48000:
+ samples += 2 * ( frame / 5 );
+ break;
+ case 44100:
+ samples += frame + ( frame / 2 ) - ( frame / 30 ) + ( frame / 300 );
+ break;
+ case 32000:
+ samples += ( 2 * frame ) - ( frame / 4 ) - ( frame / 29 );
+ break;
+ }
+ }
+ else if ( fps != 0 )
+ {
+ samples = ( ( frame * frequency ) / ( int )fps );
+ }
+
+ return samples;
+}
projects / melted / blobdiff