int FreezeFrameMain::load_configuration()
{
KeyFrame *prev_keyframe = get_prev_keyframe(get_source_position());
int64_t prev_position = edl_to_local(prev_keyframe->position);
if(prev_position < get_source_start()) prev_position = get_source_start();
read_data(prev_keyframe);
// Invalidate stored frame
if(config.enabled) first_frame_position = prev_position;
return 0;
}
int InterpolateVideo::load_configuration()
{
KeyFrame *prev_keyframe, *next_keyframe;
InterpolateVideoConfig old_config;
old_config.copy_from(&config);
next_keyframe = get_next_keyframe(get_source_position());
prev_keyframe = get_prev_keyframe(get_source_position());
// Previous keyframe stays in config object.
read_data(prev_keyframe);
int64_t prev_position = edl_to_local(prev_keyframe->position);
int64_t next_position = edl_to_local(next_keyframe->position);
if(prev_position == 0 && next_position == 0)
{
next_position = prev_position = get_source_start();
}
// printf("InterpolateVideo::load_configuration 1 %lld %lld %lld %lld\n",
// prev_keyframe->position,
// next_keyframe->position,
// prev_position,
// next_position);
// Get range to average in requested rate
range_start = prev_position;
range_end = next_position;
// Use keyframes to determine range
if(config.use_keyframes)
{
active_input_rate = get_framerate();
// Between keyframe and edge of range or no keyframes
if(range_start == range_end)
{
// Between first keyframe and start of effect
if(get_source_position() >= get_source_start() &&
get_source_position() < range_start)
{
range_start = get_source_start();
}
else
// Between last keyframe and end of effect
if(get_source_position() >= range_start &&
get_source_position() < get_source_start() + get_total_len())
{
// Last frame should be inclusive of current effect
range_end = get_source_start() + get_total_len() - 1;
}
else
{
// Should never get here
;
}
}
// Make requested rate equal to input rate for this mode.
// Convert requested rate to input rate
// printf("InterpolateVideo::load_configuration 2 %lld %lld %f %f\n",
// range_start,
// range_end,
// get_framerate(),
// config.input_rate);
// range_start = (int64_t)((double)range_start / get_framerate() * active_input_rate + 0.5);
// range_end = (int64_t)((double)range_end / get_framerate() * active_input_rate + 0.5);
}
else
// Use frame rate
{
active_input_rate = config.input_rate;
// Convert to input frame rate
range_start = (int64_t)(get_source_position() /
get_framerate() *
active_input_rate);
range_end = (int64_t)(get_source_position() /
get_framerate() *
active_input_rate) + 1;
}
// printf("InterpolateVideo::load_configuration 1 %lld %lld %lld %lld %lld %lld\n",
// prev_keyframe->position,
// next_keyframe->position,
// prev_position,
// next_position,
// range_start,
// range_end);
return !config.equivalent(&old_config);
}