card->capture->set_frame_callback(bind(&Mixer::bm_frame, this, card_index, _1, _2, _3, _4, _5, _6, _7));
if (card->frame_allocator == nullptr) {
card->frame_allocator.reset(new PBOFrameAllocator(pixel_format, 8 << 20, global_flags.width, global_flags.height, card_index, mjpeg_encoder.get())); // 8 MB.
+ } else {
+ // The format could have changed, but we cannot reset the allocator
+ // and create a new one from scratch, since there may be allocated
+ // frames from it that expect to call release_frame() on it.
+ // Instead, ask the allocator to create new frames for us and discard
+ // any old ones as they come back. This takes the mutex while
+ // allocating, but nothing should really be sending frames in there
+ // right now anyway (start_bm_capture() has not been called yet).
+ card->frame_allocator->reconfigure(pixel_format, 8 << 20, global_flags.width, global_flags.height, card_index, mjpeg_encoder.get());
}
card->capture->set_video_frame_allocator(card->frame_allocator.get());
if (card->surface == nullptr) {