Method readFileChunk

Source/Node/VideoNode.cpp:188–244

	}

	bool readFileChunk(bool init = false) {
		if (!fileHandle) return false;

		{
			std::scoped_lock<std::mutex> lock(buffersMutex);
			if (frameRate > 0 && frameBuffers.size() >= frameRate * 2) {
				return true;
			}
		}

		size_t bytesRead = SDL_RWread(fileHandle, buffer, 1, CHUNK_SIZE);

		if (bytesRead > 0) {
			splitter.push(buffer, bytesRead);
			auto nal = splitter.popNal();
			if (!nal) return true;
			streamBuffer.insert(streamBuffer.end(), nal.value().begin(), nal.value().end());
			processVideoFrame();
			return true;
		} else if (auto nal = splitter.popNal(); nal) {
			streamBuffer.insert(streamBuffer.end(), nal.value().begin(), nal.value().end());
			processVideoFrame();
			return true;
		} else {
			if (!init && looped) {
				if (decoderStorage != nullptr) {
					h264bsdShutdown(decoderStorage);
					h264bsdFree(decoderStorage);
					decoderStorage = nullptr;
				}

				decoderStorage = h264bsdAlloc();
				if (!decoderStorage) {
					Error("VideoNode: failed to allocate decoder storage");
					return false;
				}

				u32 result = h264bsdInit(decoderStorage, 1); // 0 = enable output reordering
				if (result != H264BSD_RDY) {
					Error("VideoNode: failed to initialize decoder, error code: {}", result);
					h264bsdFree(decoderStorage);
					decoderStorage = nullptr;
					return false;
				}

				currentPicId = 0;
				streamBuffer.clear();
				streamBufferPos = 0;
				splitter.clear();
				SDL_RWseek(fileHandle, 0, RW_SEEK_SET);
			} else if (!init) {
				std::scoped_lock<std::mutex> lock(buffersMutex);
				frameBuffers.emplace_back();
			}
			return false;
		}
	}